* [PATCH 00/19] OMAP: DSS2 v5 intro @ 2009-11-09 11:45 Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers Tomi Valkeinen 2009-11-10 12:40 ` [PATCH 00/19] OMAP: DSS2 v5 intro Artem Bityutskiy 0 siblings, 2 replies; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel This patch set implement new display subsystem driver (DSS2) and omapfb driver for OMAP2/3. The patches have been reviewed on linux-omap and linux-fbdev-devel mailing lists. The patches can also be found from master branch in http://gitorious.org/linux-omap-dss2/linux. The branch is based on the linux-next tree. The patches include DSS documentation patch that includes more instructions for module parameters, sysfs files etc. The patches enable DSS2 for OMAP3430 SDP board and support for other boards can be sent after the DSS2 has been merged. DSS2 is used in various boards, for example Nokia N900, Beagle Board and Overo. I don't currently have any OMAP2 board to test DSS2, but it has worked on OMAP2 and the possible fixes needed should be minimal. OMAP1 is not supported, and so the old DSS needs to be used on OMAP1 boards. My longer term plan is to move all OMAP2 stuff from the old DSS to the new one, and then shrink the old DSS to support OMAP1 only. DSS2 is partly based on the old omapfb driver by Imre Deak, and Imre has also contributed to DSS2 quite a bit. Ville Syrjälä has been contributing to scaling and tv-out work, and Topi Pohjolainen to VRFB. Also some contributions have been made by Hardik Shah, Vaibhav Hiremath, and perhaps some others that I have forgotten =). --- Changes in v5 - Improvements in the DSI code - Improvements and fixes in the VRFB code - Many other minor fixes Changes in v4: - Rebased on latest linux tree - Add maintainers Changes in v3: - Rebased on mainstream linux - Remove Beagle and Overo board changes Changes in v2: - Split the commits more to make them smaller - Print error if fclk is too low for scaling - Indent SDP, Beagle, Overo board files - DSI: return -EIO instead of -1 - VRFB: Move to drivers/video/omap2/ - VRAM: Move to drivers/video/omap2/ - VRFB: use omap2_sms_write_*() functions instead of omap_writel - SDI: Remove custom pinmuxing. Will be added later properly. - VENC: indentation changes - Add Taal DSI panel driver --- [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers [PATCH 02/19] OMAP: OMAPFB: split omapfb.h [PATCH 03/19] OMAP: OMAPFB: add omapdss device [PATCH 04/19] OMAP: Add VRAM manager [PATCH 05/19] OMAP: Add support for VRFB rotation engine [PATCH 06/19] OMAP: DSS2: Documentation for DSS2 [PATCH 07/19] OMAP: DSS2: Display Subsystem Driver core [PATCH 08/19] OMAP: DSS2: Add more core files [PATCH 09/19] OMAP: DSS2: DISPC [PATCH 10/19] OMAP: DSS2: DPI driver [PATCH 11/19] OMAP: DSS2: Video encoder driver [PATCH 12/19] OMAP: DSS2: RFBI driver [PATCH 13/19] OMAP: DSS2: SDI driver [PATCH 14/19] OMAP: DSS2: DSI driver [PATCH 15/19] OMAP: DSS2: omapfb driver [PATCH 16/19] OMAP: DSS2: Add DPI panel drivers [PATCH 17/19] OMAP: DSS2: Taal DSI command mode panel driver [PATCH 18/19] OMAP: SDP: Enable DSS2 for OMAP3 SDP board [PATCH 19/19] MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer --- Documentation/arm/OMAP/DSS | 317 ++ MAINTAINERS | 17 + arch/arm/configs/omap_3430sdp_defconfig | 32 +- arch/arm/mach-omap1/board-nokia770.c | 1 + arch/arm/mach-omap2/board-3430sdp.c | 167 +- arch/arm/mach-omap2/clock24xx.c | 8 +- arch/arm/mach-omap2/clock34xx.c | 14 +- arch/arm/mach-omap2/io.c | 4 +- arch/arm/mach-omap2/sdrc.c | 16 + arch/arm/plat-omap/fb.c | 41 +- arch/arm/plat-omap/include/plat/display.h | 575 +++ arch/arm/plat-omap/include/plat/omapfb.h | 398 --- arch/arm/plat-omap/include/plat/sdrc.h | 9 +- arch/arm/plat-omap/include/plat/vram.h | 62 + arch/arm/plat-omap/include/plat/vrfb.h | 50 + arch/arm/plat-omap/sram.c | 8 + drivers/video/Kconfig | 1 + drivers/video/Makefile | 1 + drivers/video/omap/Kconfig | 5 +- drivers/video/omap/blizzard.c | 2 +- drivers/video/omap/dispc.c | 21 +- drivers/video/omap/hwa742.c | 2 +- drivers/video/omap/lcd_2430sdp.c | 3 +- drivers/video/omap/lcd_ams_delta.c | 3 +- drivers/video/omap/lcd_apollon.c | 3 +- drivers/video/omap/lcd_h3.c | 2 +- drivers/video/omap/lcd_h4.c | 2 +- drivers/video/omap/lcd_inn1510.c | 2 +- drivers/video/omap/lcd_inn1610.c | 2 +- drivers/video/omap/lcd_ldp.c | 3 +- drivers/video/omap/lcd_mipid.c | 3 +- drivers/video/omap/lcd_omap2evm.c | 3 +- drivers/video/omap/lcd_omap3beagle.c | 4 +- drivers/video/omap/lcd_omap3evm.c | 3 +- drivers/video/omap/lcd_osk.c | 2 +- drivers/video/omap/lcd_overo.c | 3 +- drivers/video/omap/lcd_palmte.c | 2 +- drivers/video/omap/lcd_palmtt.c | 2 +- drivers/video/omap/lcd_palmz71.c | 2 +- drivers/video/omap/lcdc.c | 3 +- drivers/video/omap/omapfb.h | 227 ++ drivers/video/omap/omapfb_main.c | 2 +- drivers/video/omap/rfbi.c | 3 +- drivers/video/omap/sossi.c | 2 +- drivers/video/omap2/Kconfig | 9 + drivers/video/omap2/Makefile | 6 + drivers/video/omap2/displays/Kconfig | 28 + drivers/video/omap2/displays/Makefile | 5 + drivers/video/omap2/displays/panel-generic.c | 104 + .../omap2/displays/panel-samsung-lte430wq-f0c.c | 113 + .../video/omap2/displays/panel-sharp-ls037v7dw01.c | 153 + drivers/video/omap2/displays/panel-taal.c | 1003 ++++++ drivers/video/omap2/dss/Kconfig | 89 + drivers/video/omap2/dss/Makefile | 6 + drivers/video/omap2/dss/core.c | 919 +++++ drivers/video/omap2/dss/dispc.c | 3087 ++++++++++++++++ drivers/video/omap2/dss/display.c | 671 ++++ drivers/video/omap2/dss/dpi.c | 399 +++ drivers/video/omap2/dss/dsi.c | 3708 ++++++++++++++++++++ drivers/video/omap2/dss/dss.c | 596 ++++ drivers/video/omap2/dss/dss.h | 370 ++ drivers/video/omap2/dss/manager.c | 1487 ++++++++ drivers/video/omap2/dss/overlay.c | 680 ++++ drivers/video/omap2/dss/rfbi.c | 1309 +++++++ drivers/video/omap2/dss/sdi.c | 277 ++ drivers/video/omap2/dss/venc.c | 797 +++++ drivers/video/omap2/omapfb/Kconfig | 37 + drivers/video/omap2/omapfb/Makefile | 2 + drivers/video/omap2/omapfb/omapfb-ioctl.c | 755 ++++ drivers/video/omap2/omapfb/omapfb-main.c | 2261 ++++++++++++ drivers/video/omap2/omapfb/omapfb-sysfs.c | 507 +++ drivers/video/omap2/omapfb/omapfb.h | 146 + drivers/video/omap2/vram.c | 655 ++++ drivers/video/omap2/vrfb.c | 315 ++ include/linux/omapfb.h | 251 ++ 75 files changed, 22314 insertions(+), 463 deletions(-) ^ permalink raw reply [flat|nested] 32+ messages in thread
* [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers 2009-11-09 11:45 [PATCH 00/19] OMAP: DSS2 v5 intro Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 02/19] OMAP: OMAPFB: split omapfb.h Tomi Valkeinen 2009-11-10 12:40 ` [PATCH 00/19] OMAP: DSS2 v5 intro Artem Bityutskiy 1 sibling, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel SMS_ROT_* registers are used by VRFB rotation engine. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Paul Walmsley <paul@pwsan.com> --- arch/arm/mach-omap2/sdrc.c | 16 ++++++++++++++++ arch/arm/plat-omap/include/plat/sdrc.h | 9 ++++++++- 2 files changed, 24 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 07000de..061dc8b 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -133,3 +133,19 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, (1 << SDRC_POWER_PAGEPOLICY_SHIFT); sdrc_write_reg(l, SDRC_POWER); } + +void omap2_sms_write_rot_control(u32 val, unsigned ctx) +{ + sms_write_reg(val, SMS_ROT_CONTROL(ctx)); +} + +void omap2_sms_write_rot_size(u32 val, unsigned ctx) +{ + sms_write_reg(val, SMS_ROT_SIZE(ctx)); +} + +void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx) +{ + sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx)); +} + diff --git a/arch/arm/plat-omap/include/plat/sdrc.h b/arch/arm/plat-omap/include/plat/sdrc.h index 7b58a5f..3e72d86 100644 --- a/arch/arm/plat-omap/include/plat/sdrc.h +++ b/arch/arm/plat-omap/include/plat/sdrc.h @@ -88,7 +88,10 @@ /* SMS register offsets - read/write with sms_{read,write}_reg() */ -#define SMS_SYSCONFIG 0x010 +#define SMS_SYSCONFIG 0x010 +#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context) +#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context) +#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context) /* REVISIT: fill in other SMS registers here */ @@ -121,6 +124,10 @@ int omap2_sdrc_get_params(unsigned long r, struct omap_sdrc_params **sdrc_cs0, struct omap_sdrc_params **sdrc_cs1); +void omap2_sms_write_rot_control(u32 val, unsigned ctx); +void omap2_sms_write_rot_size(u32 val, unsigned ctx); +void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx); + #ifdef CONFIG_ARCH_OMAP2 struct memory_timings { -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 02/19] OMAP: OMAPFB: split omapfb.h 2009-11-09 11:45 ` [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 03/19] OMAP: OMAPFB: add omapdss device Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Split arch/arm/plat-omap/include/mach/omapfb.h into two files: include/linux/omapfb.h - ioctls etc for userspace and some kernel stuff for board files drivers/video/omap/omapfb.h - for omapfb internal use This cleans up omapfb.h and also makes it easier for the upcoming new DSS driver to co-exist with the old driver. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap1/board-nokia770.c | 1 + arch/arm/mach-omap2/io.c | 2 +- arch/arm/plat-omap/fb.c | 2 +- arch/arm/plat-omap/include/plat/omapfb.h | 398 ------------------------------ drivers/video/omap/blizzard.c | 2 +- drivers/video/omap/dispc.c | 2 +- drivers/video/omap/hwa742.c | 2 +- drivers/video/omap/lcd_2430sdp.c | 3 +- drivers/video/omap/lcd_ams_delta.c | 3 +- drivers/video/omap/lcd_apollon.c | 3 +- drivers/video/omap/lcd_h3.c | 2 +- drivers/video/omap/lcd_h4.c | 2 +- drivers/video/omap/lcd_inn1510.c | 2 +- drivers/video/omap/lcd_inn1610.c | 2 +- drivers/video/omap/lcd_ldp.c | 3 +- drivers/video/omap/lcd_mipid.c | 3 +- drivers/video/omap/lcd_omap2evm.c | 3 +- drivers/video/omap/lcd_omap3beagle.c | 4 +- drivers/video/omap/lcd_omap3evm.c | 3 +- drivers/video/omap/lcd_osk.c | 2 +- drivers/video/omap/lcd_overo.c | 3 +- drivers/video/omap/lcd_palmte.c | 2 +- drivers/video/omap/lcd_palmtt.c | 2 +- drivers/video/omap/lcd_palmz71.c | 2 +- drivers/video/omap/lcdc.c | 3 +- drivers/video/omap/omapfb.h | 227 +++++++++++++++++ drivers/video/omap/omapfb_main.c | 2 +- drivers/video/omap/rfbi.c | 3 +- drivers/video/omap/sossi.c | 2 +- include/linux/omapfb.h | 197 +++++++++++++++ 30 files changed, 462 insertions(+), 425 deletions(-) delete mode 100644 arch/arm/plat-omap/include/plat/omapfb.h create mode 100644 drivers/video/omap/omapfb.h create mode 100644 include/linux/omapfb.h diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index 5a275ba..af4d719 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -14,6 +14,7 @@ #include <linux/platform_device.h> #include <linux/input.h> #include <linux/clk.h> +#include <linux/omapfb.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 59d28b2..9f22c20 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -22,13 +22,13 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/clk.h> +#include <linux/omapfb.h> #include <asm/tlb.h> #include <asm/mach/map.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <plat/sram.h> #include <plat/sdrc.h> #include <plat/gpmc.h> diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index 78a4ce5..18cf1d4 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -28,13 +28,13 @@ #include <linux/platform_device.h> #include <linux/bootmem.h> #include <linux/io.h> +#include <linux/omapfb.h> #include <mach/hardware.h> #include <asm/mach/map.h> #include <plat/board.h> #include <plat/sram.h> -#include <plat/omapfb.h> #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE) diff --git a/arch/arm/plat-omap/include/plat/omapfb.h b/arch/arm/plat-omap/include/plat/omapfb.h deleted file mode 100644 index bfef7ab..0000000 --- a/arch/arm/plat-omap/include/plat/omapfb.h +++ /dev/null @@ -1,398 +0,0 @@ -/* - * File: arch/arm/plat-omap/include/mach/omapfb.h - * - * Framebuffer driver for TI OMAP boards - * - * Copyright (C) 2004 Nokia Corporation - * Author: Imre Deak <imre.deak@nokia.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#ifndef __OMAPFB_H -#define __OMAPFB_H - -#include <asm/ioctl.h> -#include <asm/types.h> - -/* IOCTL commands. */ - -#define OMAP_IOW(num, dtype) _IOW('O', num, dtype) -#define OMAP_IOR(num, dtype) _IOR('O', num, dtype) -#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype) -#define OMAP_IO(num) _IO('O', num) - -#define OMAPFB_MIRROR OMAP_IOW(31, int) -#define OMAPFB_SYNC_GFX OMAP_IO(37) -#define OMAPFB_VSYNC OMAP_IO(38) -#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int) -#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps) -#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int) -#define OMAPFB_LCD_TEST OMAP_IOW(45, int) -#define OMAPFB_CTRL_TEST OMAP_IOW(46, int) -#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old) -#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key) -#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key) -#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info) -#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info) -#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window) -#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info) -#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info) - -#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff -#define OMAPFB_CAPS_LCDC_MASK 0x00fff000 -#define OMAPFB_CAPS_PANEL_MASK 0xff000000 - -#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000 -#define OMAPFB_CAPS_TEARSYNC 0x00002000 -#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000 -#define OMAPFB_CAPS_PLANE_SCALE 0x00008000 -#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000 -#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000 -#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000 -#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000 -#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000 - -/* Values from DSP must map to lower 16-bits */ -#define OMAPFB_FORMAT_MASK 0x00ff -#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100 -#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200 -#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400 -#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800 -#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000 - -#define OMAPFB_EVENT_READY 1 -#define OMAPFB_EVENT_DISABLED 2 - -#define OMAPFB_MEMTYPE_SDRAM 0 -#define OMAPFB_MEMTYPE_SRAM 1 -#define OMAPFB_MEMTYPE_MAX 1 - -enum omapfb_color_format { - OMAPFB_COLOR_RGB565 = 0, - OMAPFB_COLOR_YUV422, - OMAPFB_COLOR_YUV420, - OMAPFB_COLOR_CLUT_8BPP, - OMAPFB_COLOR_CLUT_4BPP, - OMAPFB_COLOR_CLUT_2BPP, - OMAPFB_COLOR_CLUT_1BPP, - OMAPFB_COLOR_RGB444, - OMAPFB_COLOR_YUY422, -}; - -struct omapfb_update_window { - __u32 x, y; - __u32 width, height; - __u32 format; - __u32 out_x, out_y; - __u32 out_width, out_height; - __u32 reserved[8]; -}; - -struct omapfb_update_window_old { - __u32 x, y; - __u32 width, height; - __u32 format; -}; - -enum omapfb_plane { - OMAPFB_PLANE_GFX = 0, - OMAPFB_PLANE_VID1, - OMAPFB_PLANE_VID2, -}; - -enum omapfb_channel_out { - OMAPFB_CHANNEL_OUT_LCD = 0, - OMAPFB_CHANNEL_OUT_DIGIT, -}; - -struct omapfb_plane_info { - __u32 pos_x; - __u32 pos_y; - __u8 enabled; - __u8 channel_out; - __u8 mirror; - __u8 reserved1; - __u32 out_width; - __u32 out_height; - __u32 reserved2[12]; -}; - -struct omapfb_mem_info { - __u32 size; - __u8 type; - __u8 reserved[3]; -}; - -struct omapfb_caps { - __u32 ctrl; - __u32 plane_color; - __u32 wnd_color; -}; - -enum omapfb_color_key_type { - OMAPFB_COLOR_KEY_DISABLED = 0, - OMAPFB_COLOR_KEY_GFX_DST, - OMAPFB_COLOR_KEY_VID_SRC, -}; - -struct omapfb_color_key { - __u8 channel_out; - __u32 background; - __u32 trans_key; - __u8 key_type; -}; - -enum omapfb_update_mode { - OMAPFB_UPDATE_DISABLED = 0, - OMAPFB_AUTO_UPDATE, - OMAPFB_MANUAL_UPDATE -}; - -#ifdef __KERNEL__ - -#include <linux/completion.h> -#include <linux/interrupt.h> -#include <linux/fb.h> -#include <linux/mutex.h> - -#include <plat/board.h> - -#define OMAP_LCDC_INV_VSYNC 0x0001 -#define OMAP_LCDC_INV_HSYNC 0x0002 -#define OMAP_LCDC_INV_PIX_CLOCK 0x0004 -#define OMAP_LCDC_INV_OUTPUT_EN 0x0008 -#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010 -#define OMAP_LCDC_HSVS_OPPOSITE 0x0020 - -#define OMAP_LCDC_SIGNAL_MASK 0x003f - -#define OMAP_LCDC_PANEL_TFT 0x0100 - -#define OMAPFB_PLANE_XRES_MIN 8 -#define OMAPFB_PLANE_YRES_MIN 8 - -#ifdef CONFIG_ARCH_OMAP1 -#define OMAPFB_PLANE_NUM 1 -#else -#define OMAPFB_PLANE_NUM 3 -#endif - -struct omapfb_device; - -struct lcd_panel { - const char *name; - int config; /* TFT/STN, signal inversion */ - int bpp; /* Pixel format in fb mem */ - int data_lines; /* Lines on LCD HW interface */ - - int x_res, y_res; - int pixel_clock; /* In kHz */ - int hsw; /* Horizontal synchronization - pulse width */ - int hfp; /* Horizontal front porch */ - int hbp; /* Horizontal back porch */ - int vsw; /* Vertical synchronization - pulse width */ - int vfp; /* Vertical front porch */ - int vbp; /* Vertical back porch */ - int acb; /* ac-bias pin frequency */ - int pcd; /* pixel clock divider. - Obsolete use pixel_clock instead */ - - int (*init) (struct lcd_panel *panel, - struct omapfb_device *fbdev); - void (*cleanup) (struct lcd_panel *panel); - int (*enable) (struct lcd_panel *panel); - void (*disable) (struct lcd_panel *panel); - unsigned long (*get_caps) (struct lcd_panel *panel); - int (*set_bklight_level)(struct lcd_panel *panel, - unsigned int level); - unsigned int (*get_bklight_level)(struct lcd_panel *panel); - unsigned int (*get_bklight_max) (struct lcd_panel *panel); - int (*run_test) (struct lcd_panel *panel, int test_num); -}; - -struct extif_timings { - int cs_on_time; - int cs_off_time; - int we_on_time; - int we_off_time; - int re_on_time; - int re_off_time; - int we_cycle_time; - int re_cycle_time; - int cs_pulse_width; - int access_time; - - int clk_div; - - u32 tim[5]; /* set by extif->convert_timings */ - - int converted; -}; - -struct lcd_ctrl_extif { - int (*init) (struct omapfb_device *fbdev); - void (*cleanup) (void); - void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div); - unsigned long (*get_max_tx_rate)(void); - int (*convert_timings) (struct extif_timings *timings); - void (*set_timings) (const struct extif_timings *timings); - void (*set_bits_per_cycle)(int bpc); - void (*write_command) (const void *buf, unsigned int len); - void (*read_data) (void *buf, unsigned int len); - void (*write_data) (const void *buf, unsigned int len); - void (*transfer_area) (int width, int height, - void (callback)(void * data), void *data); - int (*setup_tearsync) (unsigned pin_cnt, - unsigned hs_pulse_time, unsigned vs_pulse_time, - int hs_pol_inv, int vs_pol_inv, int div); - int (*enable_tearsync) (int enable, unsigned line); - - unsigned long max_transmit_size; -}; - -struct omapfb_notifier_block { - struct notifier_block nb; - void *data; - int plane_idx; -}; - -typedef int (*omapfb_notifier_callback_t)(struct notifier_block *, - unsigned long event, - void *fbi); - -struct omapfb_mem_region { - u32 paddr; - void __iomem *vaddr; - unsigned long size; - u8 type; /* OMAPFB_PLANE_MEM_* */ - unsigned alloc:1; /* allocated by the driver */ - unsigned map:1; /* kernel mapped by the driver */ -}; - -struct omapfb_mem_desc { - int region_cnt; - struct omapfb_mem_region region[OMAPFB_PLANE_NUM]; -}; - -struct lcd_ctrl { - const char *name; - void *data; - - int (*init) (struct omapfb_device *fbdev, - int ext_mode, - struct omapfb_mem_desc *req_md); - void (*cleanup) (void); - void (*bind_client) (struct omapfb_notifier_block *nb); - void (*get_caps) (int plane, struct omapfb_caps *caps); - int (*set_update_mode)(enum omapfb_update_mode mode); - enum omapfb_update_mode (*get_update_mode)(void); - int (*setup_plane) (int plane, int channel_out, - unsigned long offset, - int screen_width, - int pos_x, int pos_y, int width, - int height, int color_mode); - int (*set_rotate) (int angle); - int (*setup_mem) (int plane, size_t size, - int mem_type, unsigned long *paddr); - int (*mmap) (struct fb_info *info, - struct vm_area_struct *vma); - int (*set_scale) (int plane, - int orig_width, int orig_height, - int out_width, int out_height); - int (*enable_plane) (int plane, int enable); - int (*update_window) (struct fb_info *fbi, - struct omapfb_update_window *win, - void (*callback)(void *), - void *callback_data); - void (*sync) (void); - void (*suspend) (void); - void (*resume) (void); - int (*run_test) (int test_num); - int (*setcolreg) (u_int regno, u16 red, u16 green, - u16 blue, u16 transp, - int update_hw_mem); - int (*set_color_key) (struct omapfb_color_key *ck); - int (*get_color_key) (struct omapfb_color_key *ck); -}; - -enum omapfb_state { - OMAPFB_DISABLED = 0, - OMAPFB_SUSPENDED= 99, - OMAPFB_ACTIVE = 100 -}; - -struct omapfb_plane_struct { - int idx; - struct omapfb_plane_info info; - enum omapfb_color_format color_mode; - struct omapfb_device *fbdev; -}; - -struct omapfb_device { - int state; - int ext_lcdc; /* Using external - LCD controller */ - struct mutex rqueue_mutex; - - int palette_size; - u32 pseudo_palette[17]; - - struct lcd_panel *panel; /* LCD panel */ - const struct lcd_ctrl *ctrl; /* LCD controller */ - const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */ - struct lcd_ctrl_extif *ext_if; /* LCD ctrl external - interface */ - struct device *dev; - struct fb_var_screeninfo new_var; /* for mode changes */ - - struct omapfb_mem_desc mem_desc; - struct fb_info *fb_info[OMAPFB_PLANE_NUM]; -}; - -struct omapfb_platform_data { - struct omap_lcd_config lcd; - struct omapfb_mem_desc mem_desc; - void *ctrl_platform_data; -}; - -#ifdef CONFIG_ARCH_OMAP1 -extern struct lcd_ctrl omap1_lcd_ctrl; -#else -extern struct lcd_ctrl omap2_disp_ctrl; -#endif - -extern void omapfb_reserve_sdram(void); -extern void omapfb_register_panel(struct lcd_panel *panel); -extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval); -extern void omapfb_notify_clients(struct omapfb_device *fbdev, - unsigned long event); -extern int omapfb_register_client(struct omapfb_notifier_block *nb, - omapfb_notifier_callback_t callback, - void *callback_data); -extern int omapfb_unregister_client(struct omapfb_notifier_block *nb); -extern int omapfb_update_window_async(struct fb_info *fbi, - struct omapfb_update_window *win, - void (*callback)(void *), - void *callback_data); - -/* in arch/arm/plat-omap/fb.c */ -extern void omapfb_set_ctrl_platform_data(void *pdata); - -#endif /* __KERNEL__ */ - -#endif /* __OMAPFB_H */ diff --git a/drivers/video/omap/blizzard.c b/drivers/video/omap/blizzard.c index f5d75f2..2ffb34a 100644 --- a/drivers/video/omap/blizzard.c +++ b/drivers/video/omap/blizzard.c @@ -27,9 +27,9 @@ #include <linux/clk.h> #include <plat/dma.h> -#include <plat/omapfb.h> #include <plat/blizzard.h> +#include "omapfb.h" #include "dispc.h" #define MODULE_NAME "blizzard" diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c index 7c833db..b8f75a7 100644 --- a/drivers/video/omap/dispc.c +++ b/drivers/video/omap/dispc.c @@ -26,9 +26,9 @@ #include <linux/io.h> #include <plat/sram.h> -#include <plat/omapfb.h> #include <plat/board.h> +#include "omapfb.h" #include "dispc.h" #define MODULE_NAME "dispc" diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c index 17a975e..170d171 100644 --- a/drivers/video/omap/hwa742.c +++ b/drivers/video/omap/hwa742.c @@ -27,8 +27,8 @@ #include <linux/clk.h> #include <plat/dma.h> -#include <plat/omapfb.h> #include <plat/hwa742.h> +#include "omapfb.h" #define HWA742_REV_CODE_REG 0x0 #define HWA742_CONFIG_REG 0x2 diff --git a/drivers/video/omap/lcd_2430sdp.c b/drivers/video/omap/lcd_2430sdp.c index fea7fee..760645d 100644 --- a/drivers/video/omap/lcd_2430sdp.c +++ b/drivers/video/omap/lcd_2430sdp.c @@ -28,9 +28,10 @@ #include <linux/i2c/twl4030.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91 #define SDP2430_LCD_PANEL_ENABLE_GPIO 154 #define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24 diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c index b3973eb..567db6a 100644 --- a/drivers/video/omap/lcd_ams_delta.c +++ b/drivers/video/omap/lcd_ams_delta.c @@ -27,7 +27,8 @@ #include <plat/board-ams-delta.h> #include <mach/hardware.h> -#include <plat/omapfb.h> + +#include "omapfb.h" #define AMS_DELTA_DEFAULT_CONTRAST 112 diff --git a/drivers/video/omap/lcd_apollon.c b/drivers/video/omap/lcd_apollon.c index 4c5cefc..2be94eb 100644 --- a/drivers/video/omap/lcd_apollon.c +++ b/drivers/video/omap/lcd_apollon.c @@ -26,7 +26,8 @@ #include <mach/gpio.h> #include <plat/mux.h> -#include <plat/omapfb.h> + +#include "omapfb.h" /* #define USE_35INCH_LCD 1 */ diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c index 240b4fb..8df6887 100644 --- a/drivers/video/omap/lcd_h3.c +++ b/drivers/video/omap/lcd_h3.c @@ -24,7 +24,7 @@ #include <linux/i2c/tps65010.h> #include <mach/gpio.h> -#include <plat/omapfb.h> +#include "omapfb.h" #define MODULE_NAME "omapfb-lcd_h3" diff --git a/drivers/video/omap/lcd_h4.c b/drivers/video/omap/lcd_h4.c index 720625d..03a06a9 100644 --- a/drivers/video/omap/lcd_h4.c +++ b/drivers/video/omap/lcd_h4.c @@ -22,7 +22,7 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) { diff --git a/drivers/video/omap/lcd_inn1510.c b/drivers/video/omap/lcd_inn1510.c index aafe9b4..3271f16 100644 --- a/drivers/video/omap/lcd_inn1510.c +++ b/drivers/video/omap/lcd_inn1510.c @@ -24,7 +24,7 @@ #include <linux/io.h> #include <plat/fpga.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int innovator1510_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) diff --git a/drivers/video/omap/lcd_inn1610.c b/drivers/video/omap/lcd_inn1610.c index 0de3382..9fff86f 100644 --- a/drivers/video/omap/lcd_inn1610.c +++ b/drivers/video/omap/lcd_inn1610.c @@ -23,7 +23,7 @@ #include <linux/platform_device.h> #include <mach/gpio.h> -#include <plat/omapfb.h> +#include "omapfb.h" #define MODULE_NAME "omapfb-lcd_h3" diff --git a/drivers/video/omap/lcd_ldp.c b/drivers/video/omap/lcd_ldp.c index 6a260df..5bb7f6f 100644 --- a/drivers/video/omap/lcd_ldp.c +++ b/drivers/video/omap/lcd_ldp.c @@ -28,9 +28,10 @@ #include <mach/gpio.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES) #define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES) diff --git a/drivers/video/omap/lcd_mipid.c b/drivers/video/omap/lcd_mipid.c index 8f3e2b4..abe1c76 100644 --- a/drivers/video/omap/lcd_mipid.c +++ b/drivers/video/omap/lcd_mipid.c @@ -23,9 +23,10 @@ #include <linux/workqueue.h> #include <linux/spi/spi.h> -#include <plat/omapfb.h> #include <plat/lcd_mipid.h> +#include "omapfb.h" + #define MIPID_MODULE_NAME "lcd_mipid" #define MIPID_CMD_READ_DISP_ID 0x04 diff --git a/drivers/video/omap/lcd_omap2evm.c b/drivers/video/omap/lcd_omap2evm.c index e1a38ab..006c2fe 100644 --- a/drivers/video/omap/lcd_omap2evm.c +++ b/drivers/video/omap/lcd_omap2evm.c @@ -27,9 +27,10 @@ #include <linux/i2c/twl4030.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define LCD_PANEL_ENABLE_GPIO 154 #define LCD_PANEL_LR 128 #define LCD_PANEL_UD 129 diff --git a/drivers/video/omap/lcd_omap3beagle.c b/drivers/video/omap/lcd_omap3beagle.c index ccec084..fc503d8 100644 --- a/drivers/video/omap/lcd_omap3beagle.c +++ b/drivers/video/omap/lcd_omap3beagle.c @@ -26,9 +26,11 @@ #include <linux/i2c/twl4030.h> #include <plat/mux.h> -#include <plat/omapfb.h> +#include <plat/mux.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define LCD_PANEL_ENABLE_GPIO 170 static int omap3beagle_panel_init(struct lcd_panel *panel, diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c index 556eb31..ae2edc4 100644 --- a/drivers/video/omap/lcd_omap3evm.c +++ b/drivers/video/omap/lcd_omap3evm.c @@ -26,9 +26,10 @@ #include <linux/i2c/twl4030.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define LCD_PANEL_ENABLE_GPIO 153 #define LCD_PANEL_LR 2 #define LCD_PANEL_UD 3 diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c index bb21d7d..b87e8b8 100644 --- a/drivers/video/omap/lcd_osk.c +++ b/drivers/video/omap/lcd_osk.c @@ -25,7 +25,7 @@ #include <mach/gpio.h> #include <plat/mux.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) { diff --git a/drivers/video/omap/lcd_overo.c b/drivers/video/omap/lcd_overo.c index b0f86e5..56ee192 100644 --- a/drivers/video/omap/lcd_overo.c +++ b/drivers/video/omap/lcd_overo.c @@ -25,9 +25,10 @@ #include <mach/gpio.h> #include <plat/mux.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #define LCD_ENABLE 144 static int overo_panel_init(struct lcd_panel *panel, diff --git a/drivers/video/omap/lcd_palmte.c b/drivers/video/omap/lcd_palmte.c index d302896..4cb3017 100644 --- a/drivers/video/omap/lcd_palmte.c +++ b/drivers/video/omap/lcd_palmte.c @@ -24,7 +24,7 @@ #include <linux/io.h> #include <plat/fpga.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int palmte_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) diff --git a/drivers/video/omap/lcd_palmtt.c b/drivers/video/omap/lcd_palmtt.c index 557424f..ff0e6d7 100644 --- a/drivers/video/omap/lcd_palmtt.c +++ b/drivers/video/omap/lcd_palmtt.c @@ -30,7 +30,7 @@ GPIO13 - screen blanking #include <linux/io.h> #include <mach/gpio.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int palmtt_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) diff --git a/drivers/video/omap/lcd_palmz71.c b/drivers/video/omap/lcd_palmz71.c index 5f4b5b2..2334e56 100644 --- a/drivers/video/omap/lcd_palmz71.c +++ b/drivers/video/omap/lcd_palmz71.c @@ -24,7 +24,7 @@ #include <linux/platform_device.h> #include <linux/io.h> -#include <plat/omapfb.h> +#include "omapfb.h" static int palmz71_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c index 5f32caf..b831e1d 100644 --- a/drivers/video/omap/lcdc.c +++ b/drivers/video/omap/lcdc.c @@ -30,10 +30,11 @@ #include <linux/clk.h> #include <plat/dma.h> -#include <plat/omapfb.h> #include <asm/mach-types.h> +#include "omapfb.h" + #include "lcdc.h" #define MODULE_NAME "lcdc" diff --git a/drivers/video/omap/omapfb.h b/drivers/video/omap/omapfb.h new file mode 100644 index 0000000..46e4714 --- /dev/null +++ b/drivers/video/omap/omapfb.h @@ -0,0 +1,227 @@ +/* + * File: drivers/video/omap/omapfb.h + * + * Framebuffer driver for TI OMAP boards + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __OMAPFB_H +#define __OMAPFB_H + +#include <linux/fb.h> +#include <linux/mutex.h> +#include <linux/omapfb.h> + +#define OMAPFB_EVENT_READY 1 +#define OMAPFB_EVENT_DISABLED 2 + +#define OMAP_LCDC_INV_VSYNC 0x0001 +#define OMAP_LCDC_INV_HSYNC 0x0002 +#define OMAP_LCDC_INV_PIX_CLOCK 0x0004 +#define OMAP_LCDC_INV_OUTPUT_EN 0x0008 +#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010 +#define OMAP_LCDC_HSVS_OPPOSITE 0x0020 + +#define OMAP_LCDC_SIGNAL_MASK 0x003f + +#define OMAP_LCDC_PANEL_TFT 0x0100 + +#define OMAPFB_PLANE_XRES_MIN 8 +#define OMAPFB_PLANE_YRES_MIN 8 + +struct omapfb_device; + +struct lcd_panel { + const char *name; + int config; /* TFT/STN, signal inversion */ + int bpp; /* Pixel format in fb mem */ + int data_lines; /* Lines on LCD HW interface */ + + int x_res, y_res; + int pixel_clock; /* In kHz */ + int hsw; /* Horizontal synchronization + pulse width */ + int hfp; /* Horizontal front porch */ + int hbp; /* Horizontal back porch */ + int vsw; /* Vertical synchronization + pulse width */ + int vfp; /* Vertical front porch */ + int vbp; /* Vertical back porch */ + int acb; /* ac-bias pin frequency */ + int pcd; /* pixel clock divider. + Obsolete use pixel_clock instead */ + + int (*init) (struct lcd_panel *panel, + struct omapfb_device *fbdev); + void (*cleanup) (struct lcd_panel *panel); + int (*enable) (struct lcd_panel *panel); + void (*disable) (struct lcd_panel *panel); + unsigned long (*get_caps) (struct lcd_panel *panel); + int (*set_bklight_level)(struct lcd_panel *panel, + unsigned int level); + unsigned int (*get_bklight_level)(struct lcd_panel *panel); + unsigned int (*get_bklight_max) (struct lcd_panel *panel); + int (*run_test) (struct lcd_panel *panel, int test_num); +}; + +struct extif_timings { + int cs_on_time; + int cs_off_time; + int we_on_time; + int we_off_time; + int re_on_time; + int re_off_time; + int we_cycle_time; + int re_cycle_time; + int cs_pulse_width; + int access_time; + + int clk_div; + + u32 tim[5]; /* set by extif->convert_timings */ + + int converted; +}; + +struct lcd_ctrl_extif { + int (*init) (struct omapfb_device *fbdev); + void (*cleanup) (void); + void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div); + unsigned long (*get_max_tx_rate)(void); + int (*convert_timings) (struct extif_timings *timings); + void (*set_timings) (const struct extif_timings *timings); + void (*set_bits_per_cycle)(int bpc); + void (*write_command) (const void *buf, unsigned int len); + void (*read_data) (void *buf, unsigned int len); + void (*write_data) (const void *buf, unsigned int len); + void (*transfer_area) (int width, int height, + void (callback)(void *data), void *data); + int (*setup_tearsync) (unsigned pin_cnt, + unsigned hs_pulse_time, unsigned vs_pulse_time, + int hs_pol_inv, int vs_pol_inv, int div); + int (*enable_tearsync) (int enable, unsigned line); + + unsigned long max_transmit_size; +}; + +struct omapfb_notifier_block { + struct notifier_block nb; + void *data; + int plane_idx; +}; + +typedef int (*omapfb_notifier_callback_t)(struct notifier_block *, + unsigned long event, + void *fbi); + +struct lcd_ctrl { + const char *name; + void *data; + + int (*init) (struct omapfb_device *fbdev, + int ext_mode, + struct omapfb_mem_desc *req_md); + void (*cleanup) (void); + void (*bind_client) (struct omapfb_notifier_block *nb); + void (*get_caps) (int plane, struct omapfb_caps *caps); + int (*set_update_mode)(enum omapfb_update_mode mode); + enum omapfb_update_mode (*get_update_mode)(void); + int (*setup_plane) (int plane, int channel_out, + unsigned long offset, + int screen_width, + int pos_x, int pos_y, int width, + int height, int color_mode); + int (*set_rotate) (int angle); + int (*setup_mem) (int plane, size_t size, + int mem_type, unsigned long *paddr); + int (*mmap) (struct fb_info *info, + struct vm_area_struct *vma); + int (*set_scale) (int plane, + int orig_width, int orig_height, + int out_width, int out_height); + int (*enable_plane) (int plane, int enable); + int (*update_window) (struct fb_info *fbi, + struct omapfb_update_window *win, + void (*callback)(void *), + void *callback_data); + void (*sync) (void); + void (*suspend) (void); + void (*resume) (void); + int (*run_test) (int test_num); + int (*setcolreg) (u_int regno, u16 red, u16 green, + u16 blue, u16 transp, + int update_hw_mem); + int (*set_color_key) (struct omapfb_color_key *ck); + int (*get_color_key) (struct omapfb_color_key *ck); +}; + +enum omapfb_state { + OMAPFB_DISABLED = 0, + OMAPFB_SUSPENDED = 99, + OMAPFB_ACTIVE = 100 +}; + +struct omapfb_plane_struct { + int idx; + struct omapfb_plane_info info; + enum omapfb_color_format color_mode; + struct omapfb_device *fbdev; +}; + +struct omapfb_device { + int state; + int ext_lcdc; /* Using external + LCD controller */ + struct mutex rqueue_mutex; + + int palette_size; + u32 pseudo_palette[17]; + + struct lcd_panel *panel; /* LCD panel */ + const struct lcd_ctrl *ctrl; /* LCD controller */ + const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */ + struct lcd_ctrl_extif *ext_if; /* LCD ctrl external + interface */ + struct device *dev; + struct fb_var_screeninfo new_var; /* for mode changes */ + + struct omapfb_mem_desc mem_desc; + struct fb_info *fb_info[OMAPFB_PLANE_NUM]; +}; + +#ifdef CONFIG_ARCH_OMAP1 +extern struct lcd_ctrl omap1_lcd_ctrl; +#else +extern struct lcd_ctrl omap2_disp_ctrl; +#endif + +extern void omapfb_register_panel(struct lcd_panel *panel); +extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval); +extern void omapfb_notify_clients(struct omapfb_device *fbdev, + unsigned long event); +extern int omapfb_register_client(struct omapfb_notifier_block *nb, + omapfb_notifier_callback_t callback, + void *callback_data); +extern int omapfb_unregister_client(struct omapfb_notifier_block *nb); +extern int omapfb_update_window_async(struct fb_info *fbi, + struct omapfb_update_window *win, + void (*callback)(void *), + void *callback_data); + +#endif /* __OMAPFB_H */ diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index f900a43..c7f59a5 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -29,8 +29,8 @@ #include <linux/uaccess.h> #include <plat/dma.h> -#include <plat/omapfb.h> +#include "omapfb.h" #include "lcdc.h" #include "dispc.h" diff --git a/drivers/video/omap/rfbi.c b/drivers/video/omap/rfbi.c index c90fa39..fed7b1b 100644 --- a/drivers/video/omap/rfbi.c +++ b/drivers/video/omap/rfbi.c @@ -27,8 +27,7 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/omapfb.h> - +#include "omapfb.h" #include "dispc.h" /* To work around an RFBI transfer rate limitation */ diff --git a/drivers/video/omap/sossi.c b/drivers/video/omap/sossi.c index 79dc84f..354cbbb 100644 --- a/drivers/video/omap/sossi.c +++ b/drivers/video/omap/sossi.c @@ -25,8 +25,8 @@ #include <linux/io.h> #include <plat/dma.h> -#include <plat/omapfb.h> +#include "omapfb.h" #include "lcdc.h" #define MODULE_NAME "omapfb-sossi" diff --git a/include/linux/omapfb.h b/include/linux/omapfb.h new file mode 100644 index 0000000..a8efa92 --- /dev/null +++ b/include/linux/omapfb.h @@ -0,0 +1,197 @@ +/* + * File: include/linux/omapfb.h + * + * Framebuffer driver for TI OMAP boards + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __LINUX_OMAPFB_H__ +#define __LINUX_OMAPFB_H__ + +#include <linux/ioctl.h> +#include <linux/types.h> + +/* IOCTL commands. */ + +#define OMAP_IOW(num, dtype) _IOW('O', num, dtype) +#define OMAP_IOR(num, dtype) _IOR('O', num, dtype) +#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype) +#define OMAP_IO(num) _IO('O', num) + +#define OMAPFB_MIRROR OMAP_IOW(31, int) +#define OMAPFB_SYNC_GFX OMAP_IO(37) +#define OMAPFB_VSYNC OMAP_IO(38) +#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int) +#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps) +#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int) +#define OMAPFB_LCD_TEST OMAP_IOW(45, int) +#define OMAPFB_CTRL_TEST OMAP_IOW(46, int) +#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old) +#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key) +#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key) +#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info) +#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info) +#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window) +#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info) +#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info) + +#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff +#define OMAPFB_CAPS_LCDC_MASK 0x00fff000 +#define OMAPFB_CAPS_PANEL_MASK 0xff000000 + +#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000 +#define OMAPFB_CAPS_TEARSYNC 0x00002000 +#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000 +#define OMAPFB_CAPS_PLANE_SCALE 0x00008000 +#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000 +#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000 +#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000 +#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000 +#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000 + +/* Values from DSP must map to lower 16-bits */ +#define OMAPFB_FORMAT_MASK 0x00ff +#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100 +#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200 +#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400 +#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800 +#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000 + +#define OMAPFB_MEMTYPE_SDRAM 0 +#define OMAPFB_MEMTYPE_SRAM 1 +#define OMAPFB_MEMTYPE_MAX 1 + +enum omapfb_color_format { + OMAPFB_COLOR_RGB565 = 0, + OMAPFB_COLOR_YUV422, + OMAPFB_COLOR_YUV420, + OMAPFB_COLOR_CLUT_8BPP, + OMAPFB_COLOR_CLUT_4BPP, + OMAPFB_COLOR_CLUT_2BPP, + OMAPFB_COLOR_CLUT_1BPP, + OMAPFB_COLOR_RGB444, + OMAPFB_COLOR_YUY422, +}; + +struct omapfb_update_window { + __u32 x, y; + __u32 width, height; + __u32 format; + __u32 out_x, out_y; + __u32 out_width, out_height; + __u32 reserved[8]; +}; + +struct omapfb_update_window_old { + __u32 x, y; + __u32 width, height; + __u32 format; +}; + +enum omapfb_plane { + OMAPFB_PLANE_GFX = 0, + OMAPFB_PLANE_VID1, + OMAPFB_PLANE_VID2, +}; + +enum omapfb_channel_out { + OMAPFB_CHANNEL_OUT_LCD = 0, + OMAPFB_CHANNEL_OUT_DIGIT, +}; + +struct omapfb_plane_info { + __u32 pos_x; + __u32 pos_y; + __u8 enabled; + __u8 channel_out; + __u8 mirror; + __u8 reserved1; + __u32 out_width; + __u32 out_height; + __u32 reserved2[12]; +}; + +struct omapfb_mem_info { + __u32 size; + __u8 type; + __u8 reserved[3]; +}; + +struct omapfb_caps { + __u32 ctrl; + __u32 plane_color; + __u32 wnd_color; +}; + +enum omapfb_color_key_type { + OMAPFB_COLOR_KEY_DISABLED = 0, + OMAPFB_COLOR_KEY_GFX_DST, + OMAPFB_COLOR_KEY_VID_SRC, +}; + +struct omapfb_color_key { + __u8 channel_out; + __u32 background; + __u32 trans_key; + __u8 key_type; +}; + +enum omapfb_update_mode { + OMAPFB_UPDATE_DISABLED = 0, + OMAPFB_AUTO_UPDATE, + OMAPFB_MANUAL_UPDATE +}; + +#ifdef __KERNEL__ + +#include <plat/board.h> + +#ifdef CONFIG_ARCH_OMAP1 +#define OMAPFB_PLANE_NUM 1 +#else +#define OMAPFB_PLANE_NUM 3 +#endif + +struct omapfb_mem_region { + u32 paddr; + void __iomem *vaddr; + unsigned long size; + u8 type; /* OMAPFB_PLANE_MEM_* */ + unsigned alloc:1; /* allocated by the driver */ + unsigned map:1; /* kernel mapped by the driver */ +}; + +struct omapfb_mem_desc { + int region_cnt; + struct omapfb_mem_region region[OMAPFB_PLANE_NUM]; +}; + +struct omapfb_platform_data { + struct omap_lcd_config lcd; + struct omapfb_mem_desc mem_desc; + void *ctrl_platform_data; +}; + +/* in arch/arm/plat-omap/fb.c */ +extern void omapfb_set_ctrl_platform_data(void *pdata); +extern void omapfb_reserve_sdram(void); + +#endif + +#endif /* __OMAPFB_H */ -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 03/19] OMAP: OMAPFB: add omapdss device 2009-11-09 11:45 ` [PATCH 02/19] OMAP: OMAPFB: split omapfb.h Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 04/19] OMAP: Add VRAM manager Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel, Tomi Valkeinen The upcoming new display subsystem driver is divided to two devices, omapdss and omapfb, of which omapdss handles the actual hardware. This patch adds a dummy omapdss platform device for the current omapfb driver, which is then used to get the clocks. This will make it possible for the current and the new display drivers to co-exist. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/clock24xx.c | 8 ++++---- arch/arm/mach-omap2/clock34xx.c | 14 +++++++------- drivers/video/omap/dispc.c | 19 ++++++++++++++++--- 3 files changed, 27 insertions(+), 14 deletions(-) diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c index e70e7e0..845b478 100644 --- a/arch/arm/mach-omap2/clock24xx.c +++ b/arch/arm/mach-omap2/clock24xx.c @@ -116,10 +116,10 @@ static struct omap_clk omap24xx_clks[] = { CLK(NULL, "mdm_ick", &mdm_ick, CK_243X), CLK(NULL, "mdm_osc_ck", &mdm_osc_ck, CK_243X), /* DSS domain clocks */ - CLK("omapfb", "ick", &dss_ick, CK_243X | CK_242X), - CLK("omapfb", "dss1_fck", &dss1_fck, CK_243X | CK_242X), - CLK("omapfb", "dss2_fck", &dss2_fck, CK_243X | CK_242X), - CLK("omapfb", "tv_fck", &dss_54m_fck, CK_243X | CK_242X), + CLK("omapdss", "ick", &dss_ick, CK_243X | CK_242X), + CLK("omapdss", "dss1_fck", &dss1_fck, CK_243X | CK_242X), + CLK("omapdss", "dss2_fck", &dss2_fck, CK_243X | CK_242X), + CLK("omapdss", "tv_fck", &dss_54m_fck, CK_243X | CK_242X), /* L3 domain clocks */ CLK(NULL, "core_l3_ck", &core_l3_ck, CK_243X | CK_242X), CLK(NULL, "ssi_fck", &ssi_ssr_sst_fck, CK_243X | CK_242X), diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index c258f87..294197b 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -236,13 +236,13 @@ static struct omap_clk omap34xx_clks[] = { CLK("omap_rng", "ick", &rng_ick, CK_343X), CLK(NULL, "sha11_ick", &sha11_ick, CK_343X), CLK(NULL, "des1_ick", &des1_ick, CK_343X), - CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), - CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), - CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X), - CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X), - CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X), - CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1), - CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2), + CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), + CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), + CLK("omapdss", "tv_fck", &dss_tv_fck, CK_343X), + CLK("omapdss", "video_fck", &dss_96m_fck, CK_343X), + CLK("omapdss", "dss2_fck", &dss2_alwon_fck, CK_343X), + CLK("omapdss", "ick", &dss_ick_3430es1, CK_3430ES1), + CLK("omapdss", "ick", &dss_ick_3430es2, CK_3430ES2), CLK(NULL, "cam_mclk", &cam_mclk, CK_343X), CLK(NULL, "cam_ick", &cam_ick, CK_343X), CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X), diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c index b8f75a7..c7c6455 100644 --- a/drivers/video/omap/dispc.c +++ b/drivers/video/omap/dispc.c @@ -24,6 +24,7 @@ #include <linux/vmalloc.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/platform_device.h> #include <plat/sram.h> #include <plat/board.h> @@ -188,6 +189,11 @@ static struct { struct omapfb_color_key color_key; } dispc; +static struct platform_device omapdss_device = { + .name = "omapdss", + .id = -1, +}; + static void enable_lcd_clocks(int enable); static void inline dispc_write_reg(int idx, u32 val) @@ -914,20 +920,20 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *dev) static int get_dss_clocks(void) { - dispc.dss_ick = clk_get(dispc.fbdev->dev, "ick"); + dispc.dss_ick = clk_get(&omapdss_device.dev, "ick"); if (IS_ERR(dispc.dss_ick)) { dev_err(dispc.fbdev->dev, "can't get ick\n"); return PTR_ERR(dispc.dss_ick); } - dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck"); + dispc.dss1_fck = clk_get(&omapdss_device.dev, "dss1_fck"); if (IS_ERR(dispc.dss1_fck)) { dev_err(dispc.fbdev->dev, "can't get dss1_fck\n"); clk_put(dispc.dss_ick); return PTR_ERR(dispc.dss1_fck); } - dispc.dss_54m_fck = clk_get(dispc.fbdev->dev, "tv_fck"); + dispc.dss_54m_fck = clk_get(&omapdss_device.dev, "tv_fck"); if (IS_ERR(dispc.dss_54m_fck)) { dev_err(dispc.fbdev->dev, "can't get tv_fck\n"); clk_put(dispc.dss_ick); @@ -1379,6 +1385,12 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode, int skip_init = 0; int i; + r = platform_device_register(&omapdss_device); + if (r) { + dev_err(fbdev->dev, "can't register omapdss device\n"); + return r; + } + memset(&dispc, 0, sizeof(dispc)); dispc.base = ioremap(DISPC_BASE, SZ_1K); @@ -1522,6 +1534,7 @@ static void omap_dispc_cleanup(void) free_irq(INT_24XX_DSS_IRQ, dispc.fbdev); put_dss_clocks(); iounmap(dispc.base); + platform_device_unregister(&omapdss_device); } const struct lcd_ctrl omap2_int_ctrl = { -- 1.6.5.1 ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 04/19] OMAP: Add VRAM manager 2009-11-09 11:45 ` [PATCH 03/19] OMAP: OMAPFB: add omapdss device Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 05/19] OMAP: Add support for VRFB rotation engine Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Add a Video RAM manager for OMAP 2 and 3 platforms. VRAM manager is used to allocate large continuous blocks of SDRAM or SRAM. The features VRAM manager has that are missing from dma_alloc_* functions are: - Support for OMAP2's SRAM - Allocate without ioremapping - Allocate at defined physical addresses - Allows larger VRAM area and larger allocations The upcoming DSS2 uses VRAM manager. VRAM area size can be defined in kernel config, board file or with kernel boot parameters. Board file definition overrides kernel config, and boot parameter overrides kernel config and board file. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- arch/arm/mach-omap2/io.c | 2 + arch/arm/plat-omap/include/plat/vram.h | 62 +++ arch/arm/plat-omap/sram.c | 8 + drivers/video/Kconfig | 1 + drivers/video/Makefile | 1 + drivers/video/omap2/Kconfig | 2 + drivers/video/omap2/Makefile | 1 + drivers/video/omap2/vram.c | 655 ++++++++++++++++++++++++++++++++ 8 files changed, 732 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-omap/include/plat/vram.h create mode 100644 drivers/video/omap2/Kconfig create mode 100644 drivers/video/omap2/Makefile create mode 100644 drivers/video/omap2/vram.c diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 9f22c20..6a4d8e4 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -33,6 +33,7 @@ #include <plat/sdrc.h> #include <plat/gpmc.h> #include <plat/serial.h> +#include <plat/vram.h> #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */ #include "clock.h" @@ -264,6 +265,7 @@ void __init omap2_map_common_io(void) omap2_check_revision(); omap_sram_init(); omapfb_reserve_sdram(); + omap_vram_reserve_sdram(); } /* diff --git a/arch/arm/plat-omap/include/plat/vram.h b/arch/arm/plat-omap/include/plat/vram.h new file mode 100644 index 0000000..edd4987 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/vram.h @@ -0,0 +1,62 @@ +/* + * VRAM manager for OMAP + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __OMAP_VRAM_H__ +#define __OMAP_VRAM_H__ + +#include <linux/types.h> + +#define OMAP_VRAM_MEMTYPE_SDRAM 0 +#define OMAP_VRAM_MEMTYPE_SRAM 1 +#define OMAP_VRAM_MEMTYPE_MAX 1 + +extern int omap_vram_add_region(unsigned long paddr, size_t size); +extern int omap_vram_free(unsigned long paddr, size_t size); +extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr); +extern int omap_vram_reserve(unsigned long paddr, size_t size); +extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram, + unsigned long *largest_free_block); + +#ifdef CONFIG_OMAP2_VRAM +extern void omap_vram_set_sdram_vram(u32 size, u32 start); +extern void omap_vram_set_sram_vram(u32 size, u32 start); + +extern void omap_vram_reserve_sdram(void); +extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart, + unsigned long sram_vstart, + unsigned long sram_size, + unsigned long pstart_avail, + unsigned long size_avail); +#else +static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { } +static inline void omap_vram_set_sram_vram(u32 size, u32 start) { } + +static inline void omap_vram_reserve_sdram(void) { } +static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart, + unsigned long sram_vstart, + unsigned long sram_size, + unsigned long pstart_avail, + unsigned long size_avail) +{ + return 0; +} +#endif + +#endif diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index a53aa85..2f05c78 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -28,6 +28,7 @@ #include <plat/sram.h> #include <plat/board.h> #include <plat/cpu.h> +#include <plat/vram.h> #include <plat/control.h> @@ -185,6 +186,13 @@ void __init omap_detect_sram(void) omap_sram_start + SRAM_BOOTLOADER_SZ, omap_sram_size - SRAM_BOOTLOADER_SZ); omap_sram_size -= reserved; + + reserved = omap_vram_reserve_sram(omap_sram_start, omap_sram_base, + omap_sram_size, + omap_sram_start + SRAM_BOOTLOADER_SZ, + omap_sram_size - SRAM_BOOTLOADER_SZ); + omap_sram_size -= reserved; + omap_sram_ceil = omap_sram_base + omap_sram_size; } diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 9bbb285..af0448f 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -2161,6 +2161,7 @@ config FB_BROADSHEET a bridge adapter. source "drivers/video/omap/Kconfig" +source "drivers/video/omap2/Kconfig" source "drivers/video/backlight/Kconfig" source "drivers/video/display/Kconfig" diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 80232e1..0f8da33 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -124,6 +124,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o obj-$(CONFIG_FB_XILINX) += xilinxfb.o obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o obj-$(CONFIG_FB_OMAP) += omap/ +obj-y += omap2/ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o obj-$(CONFIG_FB_CARMINE) += carminefb.o obj-$(CONFIG_FB_MB862XX) += mb862xx/ diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig new file mode 100644 index 0000000..7a6c4c9 --- /dev/null +++ b/drivers/video/omap2/Kconfig @@ -0,0 +1,2 @@ +config OMAP2_VRAM + bool diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile new file mode 100644 index 0000000..7fdf7bd --- /dev/null +++ b/drivers/video/omap2/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_OMAP2_VRAM) += vram.o diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c new file mode 100644 index 0000000..55a4de5 --- /dev/null +++ b/drivers/video/omap2/vram.c @@ -0,0 +1,655 @@ +/* + * VRAM manager for OMAP + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/*#define DEBUG*/ + +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/list.h> +#include <linux/seq_file.h> +#include <linux/bootmem.h> +#include <linux/completion.h> +#include <linux/debugfs.h> +#include <linux/jiffies.h> +#include <linux/module.h> + +#include <asm/setup.h> + +#include <plat/sram.h> +#include <plat/vram.h> +#include <plat/dma.h> + +#ifdef DEBUG +#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__) +#else +#define DBG(format, ...) +#endif + +#define OMAP2_SRAM_START 0x40200000 +/* Maximum size, in reality this is smaller if SRAM is partially locked. */ +#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */ + +/* postponed regions are used to temporarily store region information at boot + * time when we cannot yet allocate the region list */ +#define MAX_POSTPONED_REGIONS 10 + +static bool vram_initialized; +static int postponed_cnt; +static struct { + unsigned long paddr; + size_t size; +} postponed_regions[MAX_POSTPONED_REGIONS]; + +struct vram_alloc { + struct list_head list; + unsigned long paddr; + unsigned pages; +}; + +struct vram_region { + struct list_head list; + struct list_head alloc_list; + unsigned long paddr; + unsigned pages; +}; + +static DEFINE_MUTEX(region_mutex); +static LIST_HEAD(region_list); + +static inline int region_mem_type(unsigned long paddr) +{ + if (paddr >= OMAP2_SRAM_START && + paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE) + return OMAP_VRAM_MEMTYPE_SRAM; + else + return OMAP_VRAM_MEMTYPE_SDRAM; +} + +static struct vram_region *omap_vram_create_region(unsigned long paddr, + unsigned pages) +{ + struct vram_region *rm; + + rm = kzalloc(sizeof(*rm), GFP_KERNEL); + + if (rm) { + INIT_LIST_HEAD(&rm->alloc_list); + rm->paddr = paddr; + rm->pages = pages; + } + + return rm; +} + +#if 0 +static void omap_vram_free_region(struct vram_region *vr) +{ + list_del(&vr->list); + kfree(vr); +} +#endif + +static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr, + unsigned long paddr, unsigned pages) +{ + struct vram_alloc *va; + struct vram_alloc *new; + + new = kzalloc(sizeof(*va), GFP_KERNEL); + + if (!new) + return NULL; + + new->paddr = paddr; + new->pages = pages; + + list_for_each_entry(va, &vr->alloc_list, list) { + if (va->paddr > new->paddr) + break; + } + + list_add_tail(&new->list, &va->list); + + return new; +} + +static void omap_vram_free_allocation(struct vram_alloc *va) +{ + list_del(&va->list); + kfree(va); +} + +int omap_vram_add_region(unsigned long paddr, size_t size) +{ + struct vram_region *rm; + unsigned pages; + + if (vram_initialized) { + DBG("adding region paddr %08lx size %d\n", + paddr, size); + + size &= PAGE_MASK; + pages = size >> PAGE_SHIFT; + + rm = omap_vram_create_region(paddr, pages); + if (rm == NULL) + return -ENOMEM; + + list_add(&rm->list, ®ion_list); + } else { + if (postponed_cnt == MAX_POSTPONED_REGIONS) + return -ENOMEM; + + postponed_regions[postponed_cnt].paddr = paddr; + postponed_regions[postponed_cnt].size = size; + + ++postponed_cnt; + } + return 0; +} + +int omap_vram_free(unsigned long paddr, size_t size) +{ + struct vram_region *rm; + struct vram_alloc *alloc; + unsigned start, end; + + DBG("free mem paddr %08lx size %d\n", paddr, size); + + size = PAGE_ALIGN(size); + + mutex_lock(®ion_mutex); + + list_for_each_entry(rm, ®ion_list, list) { + list_for_each_entry(alloc, &rm->alloc_list, list) { + start = alloc->paddr; + end = alloc->paddr + (alloc->pages >> PAGE_SHIFT); + + if (start >= paddr && end < paddr + size) + goto found; + } + } + + mutex_unlock(®ion_mutex); + return -EINVAL; + +found: + omap_vram_free_allocation(alloc); + + mutex_unlock(®ion_mutex); + return 0; +} +EXPORT_SYMBOL(omap_vram_free); + +static int _omap_vram_reserve(unsigned long paddr, unsigned pages) +{ + struct vram_region *rm; + struct vram_alloc *alloc; + size_t size; + + size = pages << PAGE_SHIFT; + + list_for_each_entry(rm, ®ion_list, list) { + unsigned long start, end; + + DBG("checking region %lx %d\n", rm->paddr, rm->pages); + + if (region_mem_type(rm->paddr) != region_mem_type(paddr)) + continue; + + start = rm->paddr; + end = start + (rm->pages << PAGE_SHIFT) - 1; + if (start > paddr || end < paddr + size - 1) + continue; + + DBG("block ok, checking allocs\n"); + + list_for_each_entry(alloc, &rm->alloc_list, list) { + end = alloc->paddr - 1; + + if (start <= paddr && end >= paddr + size - 1) + goto found; + + start = alloc->paddr + (alloc->pages << PAGE_SHIFT); + } + + end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1; + + if (!(start <= paddr && end >= paddr + size - 1)) + continue; +found: + DBG("found area start %lx, end %lx\n", start, end); + + if (omap_vram_create_allocation(rm, paddr, pages) == NULL) + return -ENOMEM; + + return 0; + } + + return -ENOMEM; +} + +int omap_vram_reserve(unsigned long paddr, size_t size) +{ + unsigned pages; + int r; + + DBG("reserve mem paddr %08lx size %d\n", paddr, size); + + size = PAGE_ALIGN(size); + pages = size >> PAGE_SHIFT; + + mutex_lock(®ion_mutex); + + r = _omap_vram_reserve(paddr, pages); + + mutex_unlock(®ion_mutex); + + return r; +} +EXPORT_SYMBOL(omap_vram_reserve); + +static void _omap_vram_dma_cb(int lch, u16 ch_status, void *data) +{ + struct completion *compl = data; + complete(compl); +} + +static int _omap_vram_clear(u32 paddr, unsigned pages) +{ + struct completion compl; + unsigned elem_count; + unsigned frame_count; + int r; + int lch; + + init_completion(&compl); + + r = omap_request_dma(OMAP_DMA_NO_DEVICE, "VRAM DMA", + _omap_vram_dma_cb, + &compl, &lch); + if (r) { + pr_err("VRAM: request_dma failed for memory clear\n"); + return -EBUSY; + } + + elem_count = pages * PAGE_SIZE / 4; + frame_count = 1; + + omap_set_dma_transfer_params(lch, OMAP_DMA_DATA_TYPE_S32, + elem_count, frame_count, + OMAP_DMA_SYNC_ELEMENT, + 0, 0); + + omap_set_dma_dest_params(lch, 0, OMAP_DMA_AMODE_POST_INC, + paddr, 0, 0); + + omap_set_dma_color_mode(lch, OMAP_DMA_CONSTANT_FILL, 0x000000); + + omap_start_dma(lch); + + if (wait_for_completion_timeout(&compl, msecs_to_jiffies(1000)) == 0) { + omap_stop_dma(lch); + pr_err("VRAM: dma timeout while clearing memory\n"); + r = -EIO; + goto err; + } + + r = 0; +err: + omap_free_dma(lch); + + return r; +} + +static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr) +{ + struct vram_region *rm; + struct vram_alloc *alloc; + + list_for_each_entry(rm, ®ion_list, list) { + unsigned long start, end; + + DBG("checking region %lx %d\n", rm->paddr, rm->pages); + + if (region_mem_type(rm->paddr) != mtype) + continue; + + start = rm->paddr; + + list_for_each_entry(alloc, &rm->alloc_list, list) { + end = alloc->paddr; + + if (end - start >= pages << PAGE_SHIFT) + goto found; + + start = alloc->paddr + (alloc->pages << PAGE_SHIFT); + } + + end = rm->paddr + (rm->pages << PAGE_SHIFT); +found: + if (end - start < pages << PAGE_SHIFT) + continue; + + DBG("found %lx, end %lx\n", start, end); + + alloc = omap_vram_create_allocation(rm, start, pages); + if (alloc == NULL) + return -ENOMEM; + + *paddr = start; + + _omap_vram_clear(start, pages); + + return 0; + } + + return -ENOMEM; +} + +int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr) +{ + unsigned pages; + int r; + + BUG_ON(mtype > OMAP_VRAM_MEMTYPE_MAX || !size); + + DBG("alloc mem type %d size %d\n", mtype, size); + + size = PAGE_ALIGN(size); + pages = size >> PAGE_SHIFT; + + mutex_lock(®ion_mutex); + + r = _omap_vram_alloc(mtype, pages, paddr); + + mutex_unlock(®ion_mutex); + + return r; +} +EXPORT_SYMBOL(omap_vram_alloc); + +void omap_vram_get_info(unsigned long *vram, + unsigned long *free_vram, + unsigned long *largest_free_block) +{ + struct vram_region *vr; + struct vram_alloc *va; + + *vram = 0; + *free_vram = 0; + *largest_free_block = 0; + + mutex_lock(®ion_mutex); + + list_for_each_entry(vr, ®ion_list, list) { + unsigned free; + unsigned long pa; + + pa = vr->paddr; + *vram += vr->pages << PAGE_SHIFT; + + list_for_each_entry(va, &vr->alloc_list, list) { + free = va->paddr - pa; + *free_vram += free; + if (free > *largest_free_block) + *largest_free_block = free; + pa = va->paddr + (va->pages << PAGE_SHIFT); + } + + free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa; + *free_vram += free; + if (free > *largest_free_block) + *largest_free_block = free; + } + + mutex_unlock(®ion_mutex); +} +EXPORT_SYMBOL(omap_vram_get_info); + +#if defined(CONFIG_DEBUG_FS) +static int vram_debug_show(struct seq_file *s, void *unused) +{ + struct vram_region *vr; + struct vram_alloc *va; + unsigned size; + + mutex_lock(®ion_mutex); + + list_for_each_entry(vr, ®ion_list, list) { + size = vr->pages << PAGE_SHIFT; + seq_printf(s, "%08lx-%08lx (%d bytes)\n", + vr->paddr, vr->paddr + size - 1, + size); + + list_for_each_entry(va, &vr->alloc_list, list) { + size = va->pages << PAGE_SHIFT; + seq_printf(s, " %08lx-%08lx (%d bytes)\n", + va->paddr, va->paddr + size - 1, + size); + } + } + + mutex_unlock(®ion_mutex); + + return 0; +} + +static int vram_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, vram_debug_show, inode->i_private); +} + +static const struct file_operations vram_debug_fops = { + .open = vram_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init omap_vram_create_debugfs(void) +{ + struct dentry *d; + + d = debugfs_create_file("vram", S_IRUGO, NULL, + NULL, &vram_debug_fops); + if (IS_ERR(d)) + return PTR_ERR(d); + + return 0; +} +#endif + +static __init int omap_vram_init(void) +{ + int i; + + vram_initialized = 1; + + for (i = 0; i < postponed_cnt; i++) + omap_vram_add_region(postponed_regions[i].paddr, + postponed_regions[i].size); + +#ifdef CONFIG_DEBUG_FS + if (omap_vram_create_debugfs()) + pr_err("VRAM: Failed to create debugfs file\n"); +#endif + + return 0; +} + +arch_initcall(omap_vram_init); + +/* boottime vram alloc stuff */ + +/* set from board file */ +static u32 omap_vram_sram_start __initdata; +static u32 omap_vram_sram_size __initdata; + +/* set from board file */ +static u32 omap_vram_sdram_start __initdata; +static u32 omap_vram_sdram_size __initdata; + +/* set from kernel cmdline */ +static u32 omap_vram_def_sdram_size __initdata; +static u32 omap_vram_def_sdram_start __initdata; + +static void __init omap_vram_early_vram(char **p) +{ + omap_vram_def_sdram_size = memparse(*p, p); + if (**p == ',') + omap_vram_def_sdram_start = simple_strtoul((*p) + 1, p, 16); +} +__early_param("vram=", omap_vram_early_vram); + +/* + * Called from map_io. We need to call to this early enough so that we + * can reserve the fixed SDRAM regions before VM could get hold of them. + */ +void __init omap_vram_reserve_sdram(void) +{ + struct bootmem_data *bdata; + unsigned long sdram_start, sdram_size; + u32 paddr; + u32 size = 0; + + /* cmdline arg overrides the board file definition */ + if (omap_vram_def_sdram_size) { + size = omap_vram_def_sdram_size; + paddr = omap_vram_def_sdram_start; + } + + if (!size) { + size = omap_vram_sdram_size; + paddr = omap_vram_sdram_start; + } + +#ifdef CONFIG_OMAP2_VRAM_SIZE + if (!size) { + size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024; + paddr = 0; + } +#endif + + if (!size) + return; + + size = PAGE_ALIGN(size); + + bdata = NODE_DATA(0)->bdata; + sdram_start = bdata->node_min_pfn << PAGE_SHIFT; + sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start; + + if (paddr) { + if ((paddr & ~PAGE_MASK) || paddr < sdram_start || + paddr + size > sdram_start + sdram_size) { + pr_err("Illegal SDRAM region for VRAM\n"); + return; + } + + if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) { + pr_err("FB: failed to reserve VRAM\n"); + return; + } + } else { + if (size > sdram_size) { + pr_err("Illegal SDRAM size for VRAM\n"); + return; + } + + paddr = virt_to_phys(alloc_bootmem_pages(size)); + BUG_ON(paddr & ~PAGE_MASK); + } + + omap_vram_add_region(paddr, size); + + pr_info("Reserving %u bytes SDRAM for VRAM\n", size); +} + +/* + * Called at sram init time, before anything is pushed to the SRAM stack. + * Because of the stack scheme, we will allocate everything from the + * start of the lowest address region to the end of SRAM. This will also + * include padding for page alignment and possible holes between regions. + * + * As opposed to the SDRAM case, we'll also do any dynamic allocations at + * this point, since the driver built as a module would have problem with + * freeing / reallocating the regions. + */ +unsigned long __init omap_vram_reserve_sram(unsigned long sram_pstart, + unsigned long sram_vstart, + unsigned long sram_size, + unsigned long pstart_avail, + unsigned long size_avail) +{ + unsigned long pend_avail; + unsigned long reserved; + u32 paddr; + u32 size; + + paddr = omap_vram_sram_start; + size = omap_vram_sram_size; + + if (!size) + return 0; + + reserved = 0; + pend_avail = pstart_avail + size_avail; + + if (!paddr) { + /* Dynamic allocation */ + if ((size_avail & PAGE_MASK) < size) { + pr_err("Not enough SRAM for VRAM\n"); + return 0; + } + size_avail = (size_avail - size) & PAGE_MASK; + paddr = pstart_avail + size_avail; + } + + if (paddr < sram_pstart || + paddr + size > sram_pstart + sram_size) { + pr_err("Illegal SRAM region for VRAM\n"); + return 0; + } + + /* Reserve everything above the start of the region. */ + if (pend_avail - paddr > reserved) + reserved = pend_avail - paddr; + size_avail = pend_avail - reserved - pstart_avail; + + omap_vram_add_region(paddr, size); + + if (reserved) + pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved); + + return reserved; +} + +void __init omap_vram_set_sdram_vram(u32 size, u32 start) +{ + omap_vram_sdram_start = start; + omap_vram_sdram_size = size; +} + +void __init omap_vram_set_sram_vram(u32 size, u32 start) +{ + omap_vram_sram_start = start; + omap_vram_sram_size = size; +} -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. 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* [PATCH 05/19] OMAP: Add support for VRFB rotation engine 2009-11-09 11:45 ` [PATCH 04/19] OMAP: Add VRAM manager Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 06/19] OMAP: DSS2: Documentation for DSS2 Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel VRFB rotation engine is a block in OMAP2/3 that offers 12 independent contexts that can be used for framebuffer rotation. Each context has a backend area of real memory, where it stores the pixels in undisclosed format. This memory is offered to users via 4 virtual memory areas, which see the same memory area in different rotation angles (0, 90, 180 and 270 degrees). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- arch/arm/plat-omap/include/plat/vrfb.h | 50 +++++ drivers/video/omap2/Kconfig | 3 + drivers/video/omap2/Makefile | 1 + drivers/video/omap2/vrfb.c | 315 ++++++++++++++++++++++++++++++++ 4 files changed, 369 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-omap/include/plat/vrfb.h create mode 100644 drivers/video/omap2/vrfb.c diff --git a/arch/arm/plat-omap/include/plat/vrfb.h b/arch/arm/plat-omap/include/plat/vrfb.h new file mode 100644 index 0000000..d8a03ce --- /dev/null +++ b/arch/arm/plat-omap/include/plat/vrfb.h @@ -0,0 +1,50 @@ +/* + * VRFB Rotation Engine + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __OMAP_VRFB_H__ +#define __OMAP_VRFB_H__ + +#define OMAP_VRFB_LINE_LEN 2048 + +struct vrfb { + u8 context; + void __iomem *vaddr[4]; + unsigned long paddr[4]; + u16 xres; + u16 yres; + u16 xoffset; + u16 yoffset; + u8 bytespp; + bool yuv_mode; +}; + +extern int omap_vrfb_request_ctx(struct vrfb *vrfb); +extern void omap_vrfb_release_ctx(struct vrfb *vrfb); +extern void omap_vrfb_adjust_size(u16 *width, u16 *height, + u8 bytespp); +extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp); +extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp); +extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, + u16 width, u16 height, + unsigned bytespp, bool yuv_mode); +extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot); +extern void omap_vrfb_restore_context(void); + +#endif /* __VRFB_H */ diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig index 7a6c4c9..ac8b650 100644 --- a/drivers/video/omap2/Kconfig +++ b/drivers/video/omap2/Kconfig @@ -1,2 +1,5 @@ config OMAP2_VRAM bool + +config OMAP2_VRFB + bool diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile index 7fdf7bd..aa3751b 100644 --- a/drivers/video/omap2/Makefile +++ b/drivers/video/omap2/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_OMAP2_VRAM) += vram.o +obj-$(CONFIG_OMAP2_VRFB) += vrfb.o diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c new file mode 100644 index 0000000..fd22716 --- /dev/null +++ b/drivers/video/omap2/vrfb.c @@ -0,0 +1,315 @@ +/* + * VRFB Rotation Engine + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/*#define DEBUG*/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/ioport.h> +#include <linux/io.h> +#include <linux/bitops.h> +#include <linux/mutex.h> + +#include <mach/io.h> +#include <plat/vrfb.h> +#include <plat/sdrc.h> + +#ifdef DEBUG +#define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__) +#else +#define DBG(format, ...) +#endif + +#define SMS_ROT_VIRT_BASE(context, rot) \ + (((context >= 4) ? 0xD0000000 : 0x70000000) \ + + (0x4000000 * (context)) \ + + (0x1000000 * (rot))) + +#define OMAP_VRFB_SIZE (2048 * 2048 * 4) + +#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */ +#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */ +#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP) +#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP) +#define SMS_IMAGEHEIGHT_OFFSET 16 +#define SMS_IMAGEWIDTH_OFFSET 0 +#define SMS_PH_OFFSET 8 +#define SMS_PW_OFFSET 4 +#define SMS_PS_OFFSET 0 + +#define VRFB_NUM_CTXS 12 +/* bitmap of reserved contexts */ +static unsigned long ctx_map; + +static DEFINE_MUTEX(ctx_lock); + +/* + * Access to this happens from client drivers or the PM core after wake-up. + * For the first case we require locking at the driver level, for the second + * we don't need locking, since no drivers will run until after the wake-up + * has finished. + */ +static struct { + u32 physical_ba; + u32 control; + u32 size; +} vrfb_hw_context[VRFB_NUM_CTXS]; + +static inline void restore_hw_context(int ctx) +{ + omap2_sms_write_rot_control(vrfb_hw_context[ctx].control, ctx); + omap2_sms_write_rot_size(vrfb_hw_context[ctx].size, ctx); + omap2_sms_write_rot_physical_ba(vrfb_hw_context[ctx].physical_ba, ctx); +} + +static u32 get_image_width_roundup(u16 width, u8 bytespp) +{ + unsigned long stride = width * bytespp; + unsigned long ceil_pages_per_stride = (stride / VRFB_PAGE_WIDTH) + + (stride % VRFB_PAGE_WIDTH != 0); + + return ceil_pages_per_stride * VRFB_PAGE_WIDTH / bytespp; +} + +/* + * This the extra space needed in the VRFB physical area for VRFB to safely wrap + * any memory accesses to the invisible part of the virtual view to the physical + * area. + */ +static inline u32 get_extra_physical_size(u16 image_width_roundup, u8 bytespp) +{ + return (OMAP_VRFB_LINE_LEN - image_width_roundup) * VRFB_PAGE_HEIGHT * + bytespp; +} + +void omap_vrfb_restore_context(void) +{ + int i; + unsigned long map = ctx_map; + + for (i = ffs(map); i; i = ffs(map)) { + /* i=1..32 */ + i--; + map &= ~(1 << i); + restore_hw_context(i); + } +} + +void omap_vrfb_adjust_size(u16 *width, u16 *height, + u8 bytespp) +{ + *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp; + *height = ALIGN(*height, VRFB_PAGE_HEIGHT); +} +EXPORT_SYMBOL(omap_vrfb_adjust_size); + +u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp) +{ + unsigned long image_width_roundup = get_image_width_roundup(width, + bytespp); + + if (image_width_roundup > OMAP_VRFB_LINE_LEN) + return 0; + + return (width * height * bytespp) + get_extra_physical_size( + image_width_roundup, bytespp); +} +EXPORT_SYMBOL(omap_vrfb_min_phys_size); + +u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp) +{ + unsigned long image_width_roundup = get_image_width_roundup(width, + bytespp); + unsigned long height; + unsigned long extra; + + if (image_width_roundup > OMAP_VRFB_LINE_LEN) + return 0; + + extra = get_extra_physical_size(image_width_roundup, bytespp); + + if (phys_size < extra) + return 0; + + height = (phys_size - extra) / (width * bytespp); + + /* Virtual views provided by VRFB are limited to 2048x2048. */ + return min_t(unsigned long, height, 2048); +} +EXPORT_SYMBOL(omap_vrfb_max_height); + +void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, + u16 width, u16 height, + unsigned bytespp, bool yuv_mode) +{ + unsigned pixel_size_exp; + u16 vrfb_width; + u16 vrfb_height; + u8 ctx = vrfb->context; + u32 size; + u32 control; + + DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d, %d)\n", ctx, paddr, + width, height, bytespp, yuv_mode); + + /* For YUV2 and UYVY modes VRFB needs to handle pixels a bit + * differently. See TRM. */ + if (yuv_mode) { + bytespp *= 2; + width /= 2; + } + + if (bytespp == 4) + pixel_size_exp = 2; + else if (bytespp == 2) + pixel_size_exp = 1; + else + BUG(); + + vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp; + vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT); + + DBG("vrfb w %u, h %u bytespp %d\n", vrfb_width, vrfb_height, bytespp); + + size = vrfb_width << SMS_IMAGEWIDTH_OFFSET; + size |= vrfb_height << SMS_IMAGEHEIGHT_OFFSET; + + control = pixel_size_exp << SMS_PS_OFFSET; + control |= VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET; + control |= VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET; + + vrfb_hw_context[ctx].physical_ba = paddr; + vrfb_hw_context[ctx].size = size; + vrfb_hw_context[ctx].control = control; + + omap2_sms_write_rot_physical_ba(paddr, ctx); + omap2_sms_write_rot_size(size, ctx); + omap2_sms_write_rot_control(control, ctx); + + DBG("vrfb offset pixels %d, %d\n", + vrfb_width - width, vrfb_height - height); + + vrfb->xres = width; + vrfb->yres = height; + vrfb->xoffset = vrfb_width - width; + vrfb->yoffset = vrfb_height - height; + vrfb->bytespp = bytespp; + vrfb->yuv_mode = yuv_mode; +} +EXPORT_SYMBOL(omap_vrfb_setup); + +int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot) +{ + unsigned long size = height * OMAP_VRFB_LINE_LEN * vrfb->bytespp; + + vrfb->vaddr[rot] = ioremap_wc(vrfb->paddr[rot], size); + + if (!vrfb->vaddr[rot]) { + printk(KERN_ERR "vrfb: ioremap failed\n"); + return -ENOMEM; + } + + DBG("ioremapped vrfb area %d of size %lu into %p\n", rot, size, + vrfb->vaddr[rot]); + + return 0; +} +EXPORT_SYMBOL(omap_vrfb_map_angle); + +void omap_vrfb_release_ctx(struct vrfb *vrfb) +{ + int rot; + int ctx = vrfb->context; + + if (ctx == 0xff) + return; + + DBG("release ctx %d\n", ctx); + + mutex_lock(&ctx_lock); + + BUG_ON(!(ctx_map & (1 << ctx))); + + clear_bit(ctx, &ctx_map); + + for (rot = 0; rot < 4; ++rot) { + if (vrfb->paddr[rot]) { + release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE); + vrfb->paddr[rot] = 0; + } + } + + vrfb->context = 0xff; + + mutex_unlock(&ctx_lock); +} +EXPORT_SYMBOL(omap_vrfb_release_ctx); + +int omap_vrfb_request_ctx(struct vrfb *vrfb) +{ + int rot; + u32 paddr; + u8 ctx; + int r; + + DBG("request ctx\n"); + + mutex_lock(&ctx_lock); + + for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx) + if ((ctx_map & (1 << ctx)) == 0) + break; + + if (ctx == VRFB_NUM_CTXS) { + pr_err("vrfb: no free contexts\n"); + r = -EBUSY; + goto out; + } + + DBG("found free ctx %d\n", ctx); + + set_bit(ctx, &ctx_map); + + memset(vrfb, 0, sizeof(*vrfb)); + + vrfb->context = ctx; + + for (rot = 0; rot < 4; ++rot) { + paddr = SMS_ROT_VIRT_BASE(ctx, rot); + if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) { + pr_err("vrfb: failed to reserve VRFB " + "area for ctx %d, rotation %d\n", + ctx, rot * 90); + omap_vrfb_release_ctx(vrfb); + r = -ENOMEM; + goto out; + } + + vrfb->paddr[rot] = paddr; + + DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]); + } + + r = 0; +out: + mutex_unlock(&ctx_lock); + return r; +} +EXPORT_SYMBOL(omap_vrfb_request_ctx); -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. 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* [PATCH 06/19] OMAP: DSS2: Documentation for DSS2 2009-11-09 11:45 ` [PATCH 05/19] OMAP: Add support for VRFB rotation engine Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 07/19] OMAP: DSS2: Display Subsystem Driver core Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel, Tomi Valkeinen Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- Documentation/arm/OMAP/DSS | 317 ++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 317 insertions(+), 0 deletions(-) create mode 100644 Documentation/arm/OMAP/DSS diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS new file mode 100644 index 0000000..0af0e9e --- /dev/null +++ b/Documentation/arm/OMAP/DSS @@ -0,0 +1,317 @@ +OMAP2/3 Display Subsystem +------------------------- + +This is an almost total rewrite of the OMAP FB driver in drivers/video/omap +(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI, +TV-out and multiple display support, but there are lots of small improvements +also. + +The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB, +panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live +currently side by side, you can choose which one to use. + +Features +-------- + +Working and tested features include: + +- MIPI DPI (parallel) output +- MIPI DSI output in command mode +- MIPI DBI (RFBI) output +- SDI output +- TV output +- All pieces can be compiled as a module or inside kernel +- Use DISPC to update any of the outputs +- Use CPU to update RFBI or DSI output +- OMAP DISPC planes +- RGB16, RGB24 packed, RGB24 unpacked +- YUV2, UYVY +- Scaling +- Adjusting DSS FCK to find a good pixel clock +- Use DSI DPLL to create DSS FCK + +Tested boards include: +- OMAP3 SDP board +- Beagle board +- N810 + +omapdss driver +-------------- + +The DSS driver does not itself have any support for Linux framebuffer, V4L or +such like the current ones, but it has an internal kernel API that upper level +drivers can use. + +The DSS driver models OMAP's overlays, overlay managers and displays in a +flexible way to enable non-common multi-display configuration. In addition to +modelling the hardware overlays, omapdss supports virtual overlays and overlay +managers. These can be used when updating a display with CPU or system DMA. + +Panel and controller drivers +---------------------------- + +The drivers implement panel or controller specific functionality and are not +usually visible to users except through omapfb driver. They register +themselves to the DSS driver. + +omapfb driver +------------- + +The omapfb driver implements arbitrary number of standard linux framebuffers. +These framebuffers can be routed flexibly to any overlays, thus allowing very +dynamic display architecture. + +The driver exports some omapfb specific ioctls, which are compatible with the +ioctls in the old driver. + +The rest of the non standard features are exported via sysfs. Whether the final +implementation will use sysfs, or ioctls, is still open. + +V4L2 drivers +------------ + +V4L2 is being implemented in TI. + +From omapdss point of view the V4L2 drivers should be similar to framebuffer +driver. + +Architecture +-------------------- + +Some clarification what the different components do: + + - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the + pixel data for the image. Framebuffer has width and height and color + depth. + - Overlay defines where the pixels are read from and where they go on the + screen. The overlay may be smaller than framebuffer, thus displaying only + part of the framebuffer. The position of the overlay may be changed if + the overlay is smaller than the display. + - Overlay manager combines the overlays in to one image and feeds them to + display. + - Display is the actual physical display device. + +A framebuffer can be connected to multiple overlays to show the same pixel data +on all of the overlays. Note that in this case the overlay input sizes must be +the same, but, in case of video overlays, the output size can be different. Any +framebuffer can be connected to any overlay. + +An overlay can be connected to one overlay manager. Also DISPC overlays can be +connected only to DISPC overlay managers, and virtual overlays can be only +connected to virtual overlays. + +An overlay manager can be connected to one display. There are certain +restrictions which kinds of displays an overlay manager can be connected: + + - DISPC TV overlay manager can be only connected to TV display. + - Virtual overlay managers can only be connected to DBI or DSI displays. + - DISPC LCD overlay manager can be connected to all displays, except TV + display. + +Sysfs +----- +The sysfs interface is mainly used for testing. I don't think sysfs +interface is the best for this in the final version, but I don't quite know +what would be the best interfaces for these things. + +The sysfs interface is divided to two parts: DSS and FB. + +/sys/class/graphics/fb? directory: +mirror 0=off, 1=on +rotate Rotation 0-3 for 0, 90, 180, 270 degrees +rotate_type 0 = DMA rotation, 1 = VRFB rotation +overlays List of overlay numbers to which framebuffer pixels go +phys_addr Physical address of the framebuffer +virt_addr Virtual address of the framebuffer +size Size of the framebuffer + +/sys/devices/platform/omapdss/overlay? directory: +enabled 0=off, 1=on +input_size width,height (ie. the framebuffer size) +manager Destination overlay manager name +name +output_size width,height +position x,y +screen_width width +global_alpha global alpha 0-255 0=transparent 255=opaque + +/sys/devices/platform/omapdss/manager? directory: +display Destination display +name +alpha_blending_enabled 0=off, 1=on +trans_key_enabled 0=off, 1=on +trans_key_type gfx-destination, video-source +trans_key_value transparency color key (RGB24) +default_color default background color (RGB24) + +/sys/devices/platform/omapdss/display? directory: +ctrl_name Controller name +mirror 0=off, 1=on +update_mode 0=off, 1=auto, 2=manual +enabled 0=off, 1=on +name +rotate Rotation 0-3 for 0, 90, 180, 270 degrees +timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw) + When writing, two special timings are accepted for tv-out: + "pal" and "ntsc" +panel_name +tear_elim Tearing elimination 0=off, 1=on + +There are also some debugfs files at <debugfs>/omapdss/ which show information +about clocks and registers. + +Examples +-------- + +The following definitions have been made for the examples below: + +ovl0=/sys/devices/platform/omapdss/overlay0 +ovl1=/sys/devices/platform/omapdss/overlay1 +ovl2=/sys/devices/platform/omapdss/overlay2 + +mgr0=/sys/devices/platform/omapdss/manager0 +mgr1=/sys/devices/platform/omapdss/manager1 + +lcd=/sys/devices/platform/omapdss/display0 +dvi=/sys/devices/platform/omapdss/display1 +tv=/sys/devices/platform/omapdss/display2 + +fb0=/sys/class/graphics/fb0 +fb1=/sys/class/graphics/fb1 +fb2=/sys/class/graphics/fb2 + +Default setup on OMAP3 SDP +-------------------------- + +Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI +and TV-out are not in use. The columns from left to right are: +framebuffers, overlays, overlay managers, displays. Framebuffers are +handled by omapfb, and the rest by the DSS. + +FB0 --- GFX -\ DVI +FB1 --- VID1 --+- LCD ---- LCD +FB2 --- VID2 -/ TV ----- TV + +Example: Switch from LCD to DVI +---------------------- + +w=`cat $dvi/timings | cut -d "," -f 2 | cut -d "/" -f 1` +h=`cat $dvi/timings | cut -d "," -f 3 | cut -d "/" -f 1` + +echo "0" > $lcd/enabled +echo "" > $mgr0/display +fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h +# at this point you have to switch the dvi/lcd dip-switch from the omap board +echo "dvi" > $mgr0/display +echo "1" > $dvi/enabled + +After this the configuration looks like: + +FB0 --- GFX -\ -- DVI +FB1 --- VID1 --+- LCD -/ LCD +FB2 --- VID2 -/ TV ----- TV + +Example: Clone GFX overlay to LCD and TV +------------------------------- + +w=`cat $tv/timings | cut -d "," -f 2 | cut -d "/" -f 1` +h=`cat $tv/timings | cut -d "," -f 3 | cut -d "/" -f 1` + +echo "0" > $ovl0/enabled +echo "0" > $ovl1/enabled + +echo "" > $fb1/overlays +echo "0,1" > $fb0/overlays + +echo "$w,$h" > $ovl1/output_size +echo "tv" > $ovl1/manager + +echo "1" > $ovl0/enabled +echo "1" > $ovl1/enabled + +echo "1" > $tv/enabled + +After this the configuration looks like (only relevant parts shown): + +FB0 +-- GFX ---- LCD ---- LCD + \- VID1 ---- TV ---- TV + +Misc notes +---------- + +OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator. + +Using DSI DPLL to generate pixel clock it is possible produce the pixel clock +of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI. + +Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB +does not support mirroring. + +VRFB rotation requires much more memory than non-rotated framebuffer, so you +probably need to increase your vram setting before using VRFB rotation. Also, +many applications may not work with VRFB if they do not pay attention to all +framebuffer parameters. + +Kernel boot arguments +--------------------- + +vram=<size> + - Amount of total VRAM to preallocate. For example, "10M". omapfb + allocates memory for framebuffers from VRAM. + +omapfb.mode=<display>:<mode>[,...] + - Default video mode for specified displays. For example, + "dvi:800x400MR-24@60". See drivers/video/modedb.c. + There are also two special modes: "pal" and "ntsc" that + can be used to tv out. + +omapfb.vram=<fbnum>:<size>[@<physaddr>][,...] + - VRAM allocated for a framebuffer. Normally omapfb allocates vram + depending on the display size. With this you can manually allocate + more or define the physical address of each framebuffer. For example, + "1:4M" to allocate 4M for fb1. + +omapfb.debug=<y|n> + - Enable debug printing. You have to have OMAPFB debug support enabled + in kernel config. + +omapfb.test=<y|n> + - Draw test pattern to framebuffer whenever framebuffer settings change. + You need to have OMAPFB debug support enabled in kernel config. + +omapfb.vrfb=<y|n> + - Use VRFB rotation for all framebuffers. + +omapfb.rotate=<angle> + - Default rotation applied to all framebuffers. + 0 - 0 degree rotation + 1 - 90 degree rotation + 2 - 180 degree rotation + 3 - 270 degree rotation + +omapfb.mirror=<y|n> + - Default mirror for all framebuffers. Only works with DMA rotation. + +omapdss.def_disp=<display> + - Name of default display, to which all overlays will be connected. + Common examples are "lcd" or "tv". + +omapdss.debug=<y|n> + - Enable debug printing. You have to have DSS debug support enabled in + kernel config. + +TODO +---- + +DSS locking + +Error checking +- Lots of checks are missing or implemented just as BUG() + +System DMA update for DSI +- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how + to skip the empty byte?) + +OMAP1 support +- Not sure if needed + -- 1.6.5.1 ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 07/19] OMAP: DSS2: Display Subsystem Driver core 2009-11-09 11:45 ` [PATCH 06/19] OMAP: DSS2: Documentation for DSS2 Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 08/19] OMAP: DSS2: Add more core files Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel The core files of DSS2. DSS2 commits are split a bit artificially to make the individual commits smaller, and DSS2 doesn't compile properly without the rest of the core commits. This shouldn't be a problem, as no configuration uses DSS2 yet. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- arch/arm/plat-omap/include/plat/display.h | 575 ++++++++++++++++++ drivers/video/omap2/Kconfig | 2 + drivers/video/omap2/Makefile | 2 + drivers/video/omap2/dss/Kconfig | 89 +++ drivers/video/omap2/dss/Makefile | 6 + drivers/video/omap2/dss/core.c | 919 +++++++++++++++++++++++++++++ drivers/video/omap2/dss/dss.c | 596 +++++++++++++++++++ drivers/video/omap2/dss/dss.h | 370 ++++++++++++ 8 files changed, 2559 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-omap/include/plat/display.h create mode 100644 drivers/video/omap2/dss/Kconfig create mode 100644 drivers/video/omap2/dss/Makefile create mode 100644 drivers/video/omap2/dss/core.c create mode 100644 drivers/video/omap2/dss/dss.c create mode 100644 drivers/video/omap2/dss/dss.h diff --git a/arch/arm/plat-omap/include/plat/display.h b/arch/arm/plat-omap/include/plat/display.h new file mode 100644 index 0000000..c66e464 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/display.h @@ -0,0 +1,575 @@ +/* + * linux/include/asm-arm/arch-omap/display.h + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __ASM_ARCH_OMAP_DISPLAY_H +#define __ASM_ARCH_OMAP_DISPLAY_H + +#include <linux/list.h> +#include <linux/kobject.h> +#include <linux/device.h> +#include <asm/atomic.h> + +#define DISPC_IRQ_FRAMEDONE (1 << 0) +#define DISPC_IRQ_VSYNC (1 << 1) +#define DISPC_IRQ_EVSYNC_EVEN (1 << 2) +#define DISPC_IRQ_EVSYNC_ODD (1 << 3) +#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4) +#define DISPC_IRQ_PROG_LINE_NUM (1 << 5) +#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6) +#define DISPC_IRQ_GFX_END_WIN (1 << 7) +#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8) +#define DISPC_IRQ_OCP_ERR (1 << 9) +#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10) +#define DISPC_IRQ_VID1_END_WIN (1 << 11) +#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12) +#define DISPC_IRQ_VID2_END_WIN (1 << 13) +#define DISPC_IRQ_SYNC_LOST (1 << 14) +#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15) +#define DISPC_IRQ_WAKEUP (1 << 16) + +struct omap_dss_device; +struct omap_overlay_manager; + +enum omap_display_type { + OMAP_DISPLAY_TYPE_NONE = 0, + OMAP_DISPLAY_TYPE_DPI = 1 << 0, + OMAP_DISPLAY_TYPE_DBI = 1 << 1, + OMAP_DISPLAY_TYPE_SDI = 1 << 2, + OMAP_DISPLAY_TYPE_DSI = 1 << 3, + OMAP_DISPLAY_TYPE_VENC = 1 << 4, +}; + +enum omap_plane { + OMAP_DSS_GFX = 0, + OMAP_DSS_VIDEO1 = 1, + OMAP_DSS_VIDEO2 = 2 +}; + +enum omap_channel { + OMAP_DSS_CHANNEL_LCD = 0, + OMAP_DSS_CHANNEL_DIGIT = 1, +}; + +enum omap_color_mode { + OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */ + OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */ + OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */ + OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */ + OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */ + OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */ + OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */ + OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */ + OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */ + OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */ + OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */ + OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */ + OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */ + OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */ + + OMAP_DSS_COLOR_GFX_OMAP2 = + OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | + OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | + OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P, + + OMAP_DSS_COLOR_VID_OMAP2 = + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | + OMAP_DSS_COLOR_UYVY, + + OMAP_DSS_COLOR_GFX_OMAP3 = + OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | + OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, + + OMAP_DSS_COLOR_VID1_OMAP3 = + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | + OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P | + OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY, + + OMAP_DSS_COLOR_VID2_OMAP3 = + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | + OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 | + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, +}; + +enum omap_lcd_display_type { + OMAP_DSS_LCD_DISPLAY_STN, + OMAP_DSS_LCD_DISPLAY_TFT, +}; + +enum omap_dss_load_mode { + OMAP_DSS_LOAD_CLUT_AND_FRAME = 0, + OMAP_DSS_LOAD_CLUT_ONLY = 1, + OMAP_DSS_LOAD_FRAME_ONLY = 2, + OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3, +}; + +enum omap_dss_trans_key_type { + OMAP_DSS_COLOR_KEY_GFX_DST = 0, + OMAP_DSS_COLOR_KEY_VID_SRC = 1, +}; + +enum omap_rfbi_te_mode { + OMAP_DSS_RFBI_TE_MODE_1 = 1, + OMAP_DSS_RFBI_TE_MODE_2 = 2, +}; + +enum omap_panel_config { + OMAP_DSS_LCD_IVS = 1<<0, + OMAP_DSS_LCD_IHS = 1<<1, + OMAP_DSS_LCD_IPC = 1<<2, + OMAP_DSS_LCD_IEO = 1<<3, + OMAP_DSS_LCD_RF = 1<<4, + OMAP_DSS_LCD_ONOFF = 1<<5, + + OMAP_DSS_LCD_TFT = 1<<20, +}; + +enum omap_dss_venc_type { + OMAP_DSS_VENC_TYPE_COMPOSITE, + OMAP_DSS_VENC_TYPE_SVIDEO, +}; + +enum omap_display_caps { + OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0, + OMAP_DSS_DISPLAY_CAP_TEAR_ELIM = 1 << 1, +}; + +enum omap_dss_update_mode { + OMAP_DSS_UPDATE_DISABLED = 0, + OMAP_DSS_UPDATE_AUTO, + OMAP_DSS_UPDATE_MANUAL, +}; + +enum omap_dss_display_state { + OMAP_DSS_DISPLAY_DISABLED = 0, + OMAP_DSS_DISPLAY_ACTIVE, + OMAP_DSS_DISPLAY_SUSPENDED, +}; + +/* XXX perhaps this should be removed */ +enum omap_dss_overlay_managers { + OMAP_DSS_OVL_MGR_LCD, + OMAP_DSS_OVL_MGR_TV, +}; + +enum omap_dss_rotation_type { + OMAP_DSS_ROT_DMA = 0, + OMAP_DSS_ROT_VRFB = 1, +}; + +/* clockwise rotation angle */ +enum omap_dss_rotation_angle { + OMAP_DSS_ROT_0 = 0, + OMAP_DSS_ROT_90 = 1, + OMAP_DSS_ROT_180 = 2, + OMAP_DSS_ROT_270 = 3, +}; + +enum omap_overlay_caps { + OMAP_DSS_OVL_CAP_SCALE = 1 << 0, + OMAP_DSS_OVL_CAP_DISPC = 1 << 1, +}; + +enum omap_overlay_manager_caps { + OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0, +}; + +/* RFBI */ + +struct rfbi_timings { + int cs_on_time; + int cs_off_time; + int we_on_time; + int we_off_time; + int re_on_time; + int re_off_time; + int we_cycle_time; + int re_cycle_time; + int cs_pulse_width; + int access_time; + + int clk_div; + + u32 tim[5]; /* set by rfbi_convert_timings() */ + + int converted; +}; + +void omap_rfbi_write_command(const void *buf, u32 len); +void omap_rfbi_read_data(void *buf, u32 len); +void omap_rfbi_write_data(const void *buf, u32 len); +void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, + u16 x, u16 y, + u16 w, u16 h); +int omap_rfbi_enable_te(bool enable, unsigned line); +int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, + unsigned hs_pulse_time, unsigned vs_pulse_time, + int hs_pol_inv, int vs_pol_inv, int extif_div); + +/* DSI */ +void dsi_bus_lock(void); +void dsi_bus_unlock(void); +int dsi_vc_dcs_write(int channel, u8 *data, int len); +int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len); +int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen); +int dsi_vc_set_max_rx_packet_size(int channel, u16 len); +int dsi_vc_send_null(int channel); +int dsi_vc_send_bta_sync(int channel); + +/* Board specific data */ +struct omap_dss_board_info { + int (*get_last_off_on_transaction_id)(struct device *dev); + int num_devices; + struct omap_dss_device **devices; + struct omap_dss_device *default_device; +}; + +struct omap_video_timings { + /* Unit: pixels */ + u16 x_res; + /* Unit: pixels */ + u16 y_res; + /* Unit: KHz */ + u32 pixel_clock; + /* Unit: pixel clocks */ + u16 hsw; /* Horizontal synchronization pulse width */ + /* Unit: pixel clocks */ + u16 hfp; /* Horizontal front porch */ + /* Unit: pixel clocks */ + u16 hbp; /* Horizontal back porch */ + /* Unit: line clocks */ + u16 vsw; /* Vertical synchronization pulse width */ + /* Unit: line clocks */ + u16 vfp; /* Vertical front porch */ + /* Unit: line clocks */ + u16 vbp; /* Vertical back porch */ +}; + +#ifdef CONFIG_OMAP2_DSS_VENC +/* Hardcoded timings for tv modes. Venc only uses these to + * identify the mode, and does not actually use the configs + * itself. However, the configs should be something that + * a normal monitor can also show */ +const extern struct omap_video_timings omap_dss_pal_timings; +const extern struct omap_video_timings omap_dss_ntsc_timings; +#endif + +struct omap_overlay_info { + bool enabled; + + u32 paddr; + void __iomem *vaddr; + u16 screen_width; + u16 width; + u16 height; + enum omap_color_mode color_mode; + u8 rotation; + enum omap_dss_rotation_type rotation_type; + bool mirror; + + u16 pos_x; + u16 pos_y; + u16 out_width; /* if 0, out_width == width */ + u16 out_height; /* if 0, out_height == height */ + u8 global_alpha; +}; + +struct omap_overlay { + struct kobject kobj; + struct list_head list; + + /* static fields */ + const char *name; + int id; + enum omap_color_mode supported_modes; + enum omap_overlay_caps caps; + + /* dynamic fields */ + struct omap_overlay_manager *manager; + struct omap_overlay_info info; + + /* if true, info has been changed, but not applied() yet */ + bool info_dirty; + + int (*set_manager)(struct omap_overlay *ovl, + struct omap_overlay_manager *mgr); + int (*unset_manager)(struct omap_overlay *ovl); + + int (*set_overlay_info)(struct omap_overlay *ovl, + struct omap_overlay_info *info); + void (*get_overlay_info)(struct omap_overlay *ovl, + struct omap_overlay_info *info); + + int (*wait_for_go)(struct omap_overlay *ovl); +}; + +struct omap_overlay_manager_info { + u32 default_color; + + enum omap_dss_trans_key_type trans_key_type; + u32 trans_key; + bool trans_enabled; + + bool alpha_enabled; +}; + +struct omap_overlay_manager { + struct kobject kobj; + struct list_head list; + + /* static fields */ + const char *name; + int id; + enum omap_overlay_manager_caps caps; + int num_overlays; + struct omap_overlay **overlays; + enum omap_display_type supported_displays; + + /* dynamic fields */ + struct omap_dss_device *device; + struct omap_overlay_manager_info info; + + bool device_changed; + /* if true, info has been changed but not applied() yet */ + bool info_dirty; + + int (*set_device)(struct omap_overlay_manager *mgr, + struct omap_dss_device *dssdev); + int (*unset_device)(struct omap_overlay_manager *mgr); + + int (*set_manager_info)(struct omap_overlay_manager *mgr, + struct omap_overlay_manager_info *info); + void (*get_manager_info)(struct omap_overlay_manager *mgr, + struct omap_overlay_manager_info *info); + + int (*apply)(struct omap_overlay_manager *mgr); + int (*wait_for_go)(struct omap_overlay_manager *mgr); +}; + +struct omap_dss_device { + struct device dev; + + enum omap_display_type type; + + union { + struct { + u8 data_lines; + } dpi; + + struct { + u8 channel; + u8 data_lines; + } rfbi; + + struct { + u8 datapairs; + } sdi; + + struct { + u8 clk_lane; + u8 clk_pol; + u8 data1_lane; + u8 data1_pol; + u8 data2_lane; + u8 data2_pol; + + struct { + u16 regn; + u16 regm; + u16 regm3; + u16 regm4; + + u16 lp_clk_div; + + u16 lck_div; + u16 pck_div; + } div; + + bool ext_te; + u8 ext_te_gpio; + } dsi; + + struct { + enum omap_dss_venc_type type; + bool invert_polarity; + } venc; + } phy; + + struct { + struct omap_video_timings timings; + + int acbi; /* ac-bias pin transitions per interrupt */ + /* Unit: line clocks */ + int acb; /* ac-bias pin frequency */ + + enum omap_panel_config config; + + u8 recommended_bpp; + + struct omap_dss_device *ctrl; + } panel; + + struct { + u8 pixel_size; + struct rfbi_timings rfbi_timings; + struct omap_dss_device *panel; + } ctrl; + + int reset_gpio; + + int max_backlight_level; + + const char *name; + + /* used to match device to driver */ + const char *driver_name; + + void *data; + + struct omap_dss_driver *driver; + + /* helper variable for driver suspend/resume */ + bool activate_after_resume; + + enum omap_display_caps caps; + + struct omap_overlay_manager *manager; + + enum omap_dss_display_state state; + + int (*enable)(struct omap_dss_device *dssdev); + void (*disable)(struct omap_dss_device *dssdev); + + int (*suspend)(struct omap_dss_device *dssdev); + int (*resume)(struct omap_dss_device *dssdev); + + void (*get_resolution)(struct omap_dss_device *dssdev, + u16 *xres, u16 *yres); + int (*get_recommended_bpp)(struct omap_dss_device *dssdev); + + int (*check_timings)(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); + void (*set_timings)(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); + void (*get_timings)(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); + int (*update)(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h); + int (*sync)(struct omap_dss_device *dssdev); + int (*wait_vsync)(struct omap_dss_device *dssdev); + + int (*set_update_mode)(struct omap_dss_device *dssdev, + enum omap_dss_update_mode); + enum omap_dss_update_mode (*get_update_mode) + (struct omap_dss_device *dssdev); + + int (*enable_te)(struct omap_dss_device *dssdev, bool enable); + int (*get_te)(struct omap_dss_device *dssdev); + + u8 (*get_rotate)(struct omap_dss_device *dssdev); + int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate); + + bool (*get_mirror)(struct omap_dss_device *dssdev); + int (*set_mirror)(struct omap_dss_device *dssdev, bool enable); + + int (*run_test)(struct omap_dss_device *dssdev, int test); + int (*memory_read)(struct omap_dss_device *dssdev, + void *buf, size_t size, + u16 x, u16 y, u16 w, u16 h); + + int (*set_wss)(struct omap_dss_device *dssdev, u32 wss); + u32 (*get_wss)(struct omap_dss_device *dssdev); + + /* platform specific */ + int (*platform_enable)(struct omap_dss_device *dssdev); + void (*platform_disable)(struct omap_dss_device *dssdev); + int (*set_backlight)(struct omap_dss_device *dssdev, int level); + int (*get_backlight)(struct omap_dss_device *dssdev); +}; + +struct omap_dss_driver { + struct device_driver driver; + + int (*probe)(struct omap_dss_device *); + void (*remove)(struct omap_dss_device *); + + int (*enable)(struct omap_dss_device *display); + void (*disable)(struct omap_dss_device *display); + int (*suspend)(struct omap_dss_device *display); + int (*resume)(struct omap_dss_device *display); + int (*run_test)(struct omap_dss_device *display, int test); + + void (*setup_update)(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h); + + int (*enable_te)(struct omap_dss_device *dssdev, bool enable); + int (*wait_for_te)(struct omap_dss_device *dssdev); + + u8 (*get_rotate)(struct omap_dss_device *dssdev); + int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate); + + bool (*get_mirror)(struct omap_dss_device *dssdev); + int (*set_mirror)(struct omap_dss_device *dssdev, bool enable); + + int (*memory_read)(struct omap_dss_device *dssdev, + void *buf, size_t size, + u16 x, u16 y, u16 w, u16 h); +}; + +int omap_dss_register_driver(struct omap_dss_driver *); +void omap_dss_unregister_driver(struct omap_dss_driver *); + +int omap_dss_register_device(struct omap_dss_device *); +void omap_dss_unregister_device(struct omap_dss_device *); + +void omap_dss_get_device(struct omap_dss_device *dssdev); +void omap_dss_put_device(struct omap_dss_device *dssdev); +#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL) +struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from); +struct omap_dss_device *omap_dss_find_device(void *data, + int (*match)(struct omap_dss_device *dssdev, void *data)); + +int omap_dss_start_device(struct omap_dss_device *dssdev); +void omap_dss_stop_device(struct omap_dss_device *dssdev); + +int omap_dss_get_num_overlay_managers(void); +struct omap_overlay_manager *omap_dss_get_overlay_manager(int num); + +int omap_dss_get_num_overlays(void); +struct omap_overlay *omap_dss_get_overlay(int num); + +typedef void (*omap_dispc_isr_t) (void *arg, u32 mask); +int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask); +int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask); + +int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout); +int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, + unsigned long timeout); + +#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver) +#define to_dss_device(x) container_of((x), struct omap_dss_device, dev) + +#endif diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig index ac8b650..55b4c42 100644 --- a/drivers/video/omap2/Kconfig +++ b/drivers/video/omap2/Kconfig @@ -3,3 +3,5 @@ config OMAP2_VRAM config OMAP2_VRFB bool + +source "drivers/video/omap2/dss/Kconfig" diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile index aa3751b..ee0644f 100644 --- a/drivers/video/omap2/Makefile +++ b/drivers/video/omap2/Makefile @@ -1,2 +1,4 @@ obj-$(CONFIG_OMAP2_VRAM) += vram.o obj-$(CONFIG_OMAP2_VRFB) += vrfb.o + +obj-y += dss/ diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig new file mode 100644 index 0000000..71d8dec --- /dev/null +++ b/drivers/video/omap2/dss/Kconfig @@ -0,0 +1,89 @@ +menuconfig OMAP2_DSS + tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)" + depends on ARCH_OMAP2 || ARCH_OMAP3 + help + OMAP2/3 Display Subsystem support. + +if OMAP2_DSS + +config OMAP2_VRAM_SIZE + int "VRAM size (MB)" + range 0 32 + default 0 + help + The amount of SDRAM to reserve at boot time for video RAM use. + This VRAM will be used by omapfb and other drivers that need + large continuous RAM area for video use. + + You can also set this with "vram=<bytes>" kernel argument, or + in the board file. + +config OMAP2_DSS_DEBUG_SUPPORT + bool "Debug support" + default y + help + This enables debug messages. You need to enable printing + with 'debug' module parameter. + +config OMAP2_DSS_RFBI + bool "RFBI support" + default n + help + MIPI DBI, or RFBI (Remote Framebuffer Interface), support. + +config OMAP2_DSS_VENC + bool "VENC support" + default y + help + OMAP Video Encoder support. + +config OMAP2_DSS_SDI + bool "SDI support" + depends on ARCH_OMAP3 + default n + help + SDI (Serial Display Interface) support. + +config OMAP2_DSS_DSI + bool "DSI support" + depends on ARCH_OMAP3 + default n + help + MIPI DSI support. + +config OMAP2_DSS_USE_DSI_PLL + bool "Use DSI PLL for PCLK (EXPERIMENTAL)" + default n + depends on OMAP2_DSS_DSI + help + Use DSI PLL to generate pixel clock. Currently only for DPI output. + DSI PLL can be used to generate higher and more precise pixel clocks. + +config OMAP2_DSS_FAKE_VSYNC + bool "Fake VSYNC irq from manual update displays" + default n + help + If this is selected, DSI will generate a fake DISPC VSYNC interrupt + when DSI has sent a frame. This is only needed with DSI or RFBI + displays using manual mode, and you want VSYNC to, for example, + time animation. + +config OMAP2_DSS_MIN_FCK_PER_PCK + int "Minimum FCK/PCK ratio (for scaling)" + range 0 32 + default 0 + help + This can be used to adjust the minimum FCK/PCK ratio. + + With this you can make sure that DISPC FCK is at least + n x PCK. Video plane scaling requires higher FCK than + normally. + + If this is set to 0, there's no extra constraint on the + DISPC FCK. However, the FCK will at minimum be + 2xPCK (if active matrix) or 3xPCK (if passive matrix). + + Max FCK is 173MHz, so this doesn't work if your PCK + is very high. + +endif diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile new file mode 100644 index 0000000..980c72c --- /dev/null +++ b/drivers/video/omap2/dss/Makefile @@ -0,0 +1,6 @@ +obj-$(CONFIG_OMAP2_DSS) += omapdss.o +omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o +omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o +omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o +omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o +omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c new file mode 100644 index 0000000..29497a0 --- /dev/null +++ b/drivers/video/omap2/dss/core.c @@ -0,0 +1,919 @@ +/* + * linux/drivers/video/omap2/dss/core.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "CORE" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/seq_file.h> +#include <linux/debugfs.h> +#include <linux/io.h> +#include <linux/device.h> + +#include <plat/display.h> +#include <plat/clock.h> + +#include "dss.h" + +static struct { + struct platform_device *pdev; + int ctx_id; + + struct clk *dss_ick; + struct clk *dss1_fck; + struct clk *dss2_fck; + struct clk *dss_54m_fck; + struct clk *dss_96m_fck; + unsigned num_clks_enabled; +} core; + +static void dss_clk_enable_all_no_ctx(void); +static void dss_clk_disable_all_no_ctx(void); +static void dss_clk_enable_no_ctx(enum dss_clock clks); +static void dss_clk_disable_no_ctx(enum dss_clock clks); + +static char *def_disp_name; +module_param_named(def_disp, def_disp_name, charp, 0); +MODULE_PARM_DESC(def_disp_name, "default display name"); + +#ifdef DEBUG +unsigned int dss_debug; +module_param_named(debug, dss_debug, bool, 0644); +#endif + +/* CONTEXT */ +static int dss_get_ctx_id(void) +{ + struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; + int r; + + if (!pdata->get_last_off_on_transaction_id) + return 0; + r = pdata->get_last_off_on_transaction_id(&core.pdev->dev); + if (r < 0) { + dev_err(&core.pdev->dev, "getting transaction ID failed, " + "will force context restore\n"); + r = -1; + } + return r; +} + +int dss_need_ctx_restore(void) +{ + int id = dss_get_ctx_id(); + + if (id < 0 || id != core.ctx_id) { + DSSDBG("ctx id %d -> id %d\n", + core.ctx_id, id); + core.ctx_id = id; + return 1; + } else { + return 0; + } +} + +static void save_all_ctx(void) +{ + DSSDBG("save context\n"); + + dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); + + dss_save_context(); + dispc_save_context(); +#ifdef CONFIG_OMAP2_DSS_DSI + dsi_save_context(); +#endif + + dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); +} + +static void restore_all_ctx(void) +{ + DSSDBG("restore context\n"); + + dss_clk_enable_all_no_ctx(); + + dss_restore_context(); + dispc_restore_context(); +#ifdef CONFIG_OMAP2_DSS_DSI + dsi_restore_context(); +#endif + + dss_clk_disable_all_no_ctx(); +} + +/* CLOCKS */ +static void core_dump_clocks(struct seq_file *s) +{ + int i; + struct clk *clocks[5] = { + core.dss_ick, + core.dss1_fck, + core.dss2_fck, + core.dss_54m_fck, + core.dss_96m_fck + }; + + seq_printf(s, "- CORE -\n"); + + seq_printf(s, "internal clk count\t\t%u\n", core.num_clks_enabled); + + for (i = 0; i < 5; i++) { + if (!clocks[i]) + continue; + seq_printf(s, "%-15s\t%lu\t%d\n", + clocks[i]->name, + clk_get_rate(clocks[i]), + clocks[i]->usecount); + } +} + +static int dss_get_clock(struct clk **clock, const char *clk_name) +{ + struct clk *clk; + + clk = clk_get(&core.pdev->dev, clk_name); + + if (IS_ERR(clk)) { + DSSERR("can't get clock %s", clk_name); + return PTR_ERR(clk); + } + + *clock = clk; + + DSSDBG("clk %s, rate %ld\n", clk_name, clk_get_rate(clk)); + + return 0; +} + +static int dss_get_clocks(void) +{ + int r; + + core.dss_ick = NULL; + core.dss1_fck = NULL; + core.dss2_fck = NULL; + core.dss_54m_fck = NULL; + core.dss_96m_fck = NULL; + + r = dss_get_clock(&core.dss_ick, "ick"); + if (r) + goto err; + + r = dss_get_clock(&core.dss1_fck, "dss1_fck"); + if (r) + goto err; + + r = dss_get_clock(&core.dss2_fck, "dss2_fck"); + if (r) + goto err; + + r = dss_get_clock(&core.dss_54m_fck, "tv_fck"); + if (r) + goto err; + + r = dss_get_clock(&core.dss_96m_fck, "video_fck"); + if (r) + goto err; + + return 0; + +err: + if (core.dss_ick) + clk_put(core.dss_ick); + if (core.dss1_fck) + clk_put(core.dss1_fck); + if (core.dss2_fck) + clk_put(core.dss2_fck); + if (core.dss_54m_fck) + clk_put(core.dss_54m_fck); + if (core.dss_96m_fck) + clk_put(core.dss_96m_fck); + + return r; +} + +static void dss_put_clocks(void) +{ + if (core.dss_96m_fck) + clk_put(core.dss_96m_fck); + clk_put(core.dss_54m_fck); + clk_put(core.dss1_fck); + clk_put(core.dss2_fck); + clk_put(core.dss_ick); +} + +unsigned long dss_clk_get_rate(enum dss_clock clk) +{ + switch (clk) { + case DSS_CLK_ICK: + return clk_get_rate(core.dss_ick); + case DSS_CLK_FCK1: + return clk_get_rate(core.dss1_fck); + case DSS_CLK_FCK2: + return clk_get_rate(core.dss2_fck); + case DSS_CLK_54M: + return clk_get_rate(core.dss_54m_fck); + case DSS_CLK_96M: + return clk_get_rate(core.dss_96m_fck); + } + + BUG(); + return 0; +} + +static unsigned count_clk_bits(enum dss_clock clks) +{ + unsigned num_clks = 0; + + if (clks & DSS_CLK_ICK) + ++num_clks; + if (clks & DSS_CLK_FCK1) + ++num_clks; + if (clks & DSS_CLK_FCK2) + ++num_clks; + if (clks & DSS_CLK_54M) + ++num_clks; + if (clks & DSS_CLK_96M) + ++num_clks; + + return num_clks; +} + +static void dss_clk_enable_no_ctx(enum dss_clock clks) +{ + unsigned num_clks = count_clk_bits(clks); + + if (clks & DSS_CLK_ICK) + clk_enable(core.dss_ick); + if (clks & DSS_CLK_FCK1) + clk_enable(core.dss1_fck); + if (clks & DSS_CLK_FCK2) + clk_enable(core.dss2_fck); + if (clks & DSS_CLK_54M) + clk_enable(core.dss_54m_fck); + if (clks & DSS_CLK_96M) + clk_enable(core.dss_96m_fck); + + core.num_clks_enabled += num_clks; +} + +void dss_clk_enable(enum dss_clock clks) +{ + dss_clk_enable_no_ctx(clks); + + if (cpu_is_omap34xx() && dss_need_ctx_restore()) + restore_all_ctx(); +} + +static void dss_clk_disable_no_ctx(enum dss_clock clks) +{ + unsigned num_clks = count_clk_bits(clks); + + if (clks & DSS_CLK_ICK) + clk_disable(core.dss_ick); + if (clks & DSS_CLK_FCK1) + clk_disable(core.dss1_fck); + if (clks & DSS_CLK_FCK2) + clk_disable(core.dss2_fck); + if (clks & DSS_CLK_54M) + clk_disable(core.dss_54m_fck); + if (clks & DSS_CLK_96M) + clk_disable(core.dss_96m_fck); + + core.num_clks_enabled -= num_clks; +} + +void dss_clk_disable(enum dss_clock clks) +{ + if (cpu_is_omap34xx()) { + unsigned num_clks = count_clk_bits(clks); + + BUG_ON(core.num_clks_enabled < num_clks); + + if (core.num_clks_enabled == num_clks) + save_all_ctx(); + } + + dss_clk_disable_no_ctx(clks); +} + +static void dss_clk_enable_all_no_ctx(void) +{ + enum dss_clock clks; + + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; + if (cpu_is_omap34xx()) + clks |= DSS_CLK_96M; + dss_clk_enable_no_ctx(clks); +} + +static void dss_clk_disable_all_no_ctx(void) +{ + enum dss_clock clks; + + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; + if (cpu_is_omap34xx()) + clks |= DSS_CLK_96M; + dss_clk_disable_no_ctx(clks); +} + +static void dss_clk_disable_all(void) +{ + enum dss_clock clks; + + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; + if (cpu_is_omap34xx()) + clks |= DSS_CLK_96M; + dss_clk_disable(clks); +} + +/* DEBUGFS */ +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) +static void dss_debug_dump_clocks(struct seq_file *s) +{ + core_dump_clocks(s); + dss_dump_clocks(s); + dispc_dump_clocks(s); +#ifdef CONFIG_OMAP2_DSS_DSI + dsi_dump_clocks(s); +#endif +} + +static int dss_debug_show(struct seq_file *s, void *unused) +{ + void (*func)(struct seq_file *) = s->private; + func(s); + return 0; +} + +static int dss_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, dss_debug_show, inode->i_private); +} + +static const struct file_operations dss_debug_fops = { + .open = dss_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *dss_debugfs_dir; + +static int dss_initialize_debugfs(void) +{ + dss_debugfs_dir = debugfs_create_dir("omapdss", NULL); + if (IS_ERR(dss_debugfs_dir)) { + int err = PTR_ERR(dss_debugfs_dir); + dss_debugfs_dir = NULL; + return err; + } + + debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir, + &dss_debug_dump_clocks, &dss_debug_fops); + + debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir, + &dss_dump_regs, &dss_debug_fops); + debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir, + &dispc_dump_regs, &dss_debug_fops); +#ifdef CONFIG_OMAP2_DSS_RFBI + debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir, + &rfbi_dump_regs, &dss_debug_fops); +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir, + &dsi_dump_regs, &dss_debug_fops); +#endif +#ifdef CONFIG_OMAP2_DSS_VENC + debugfs_create_file("venc", S_IRUGO, dss_debugfs_dir, + &venc_dump_regs, &dss_debug_fops); +#endif + return 0; +} + +static void dss_uninitialize_debugfs(void) +{ + if (dss_debugfs_dir) + debugfs_remove_recursive(dss_debugfs_dir); +} +#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */ + +/* PLATFORM DEVICE */ +static int omap_dss_probe(struct platform_device *pdev) +{ + struct omap_dss_board_info *pdata = pdev->dev.platform_data; + int skip_init = 0; + int r; + int i; + + core.pdev = pdev; + + dss_init_overlay_managers(pdev); + dss_init_overlays(pdev); + + r = dss_get_clocks(); + if (r) + goto fail0; + + dss_clk_enable_all_no_ctx(); + + core.ctx_id = dss_get_ctx_id(); + DSSDBG("initial ctx id %u\n", core.ctx_id); + +#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT + /* DISPC_CONTROL */ + if (omap_readl(0x48050440) & 1) /* LCD enabled? */ + skip_init = 1; +#endif + + r = dss_init(skip_init); + if (r) { + DSSERR("Failed to initialize DSS\n"); + goto fail0; + } + +#ifdef CONFIG_OMAP2_DSS_RFBI + r = rfbi_init(); + if (r) { + DSSERR("Failed to initialize rfbi\n"); + goto fail0; + } +#endif + + r = dpi_init(); + if (r) { + DSSERR("Failed to initialize dpi\n"); + goto fail0; + } + + r = dispc_init(); + if (r) { + DSSERR("Failed to initialize dispc\n"); + goto fail0; + } +#ifdef CONFIG_OMAP2_DSS_VENC + r = venc_init(pdev); + if (r) { + DSSERR("Failed to initialize venc\n"); + goto fail0; + } +#endif + if (cpu_is_omap34xx()) { +#ifdef CONFIG_OMAP2_DSS_SDI + r = sdi_init(skip_init); + if (r) { + DSSERR("Failed to initialize SDI\n"); + goto fail0; + } +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + r = dsi_init(pdev); + if (r) { + DSSERR("Failed to initialize DSI\n"); + goto fail0; + } +#endif + } + +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) + r = dss_initialize_debugfs(); + if (r) + goto fail0; +#endif + + for (i = 0; i < pdata->num_devices; ++i) { + struct omap_dss_device *dssdev = pdata->devices[i]; + + r = omap_dss_register_device(dssdev); + if (r) + DSSERR("device reg failed %d\n", i); + + if (def_disp_name && strcmp(def_disp_name, dssdev->name) == 0) + pdata->default_device = dssdev; + } + + dss_clk_disable_all(); + + return 0; + + /* XXX fail correctly */ +fail0: + return r; +} + +static int omap_dss_remove(struct platform_device *pdev) +{ + struct omap_dss_board_info *pdata = pdev->dev.platform_data; + int i; + int c; + +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) + dss_uninitialize_debugfs(); +#endif + +#ifdef CONFIG_OMAP2_DSS_VENC + venc_exit(); +#endif + dispc_exit(); + dpi_exit(); +#ifdef CONFIG_OMAP2_DSS_RFBI + rfbi_exit(); +#endif + if (cpu_is_omap34xx()) { +#ifdef CONFIG_OMAP2_DSS_DSI + dsi_exit(); +#endif +#ifdef CONFIG_OMAP2_DSS_SDI + sdi_exit(); +#endif + } + + dss_exit(); + + /* these should be removed at some point */ + c = core.dss_ick->usecount; + if (c > 0) { + DSSERR("warning: dss_ick usecount %d, disabling\n", c); + while (c-- > 0) + clk_disable(core.dss_ick); + } + + c = core.dss1_fck->usecount; + if (c > 0) { + DSSERR("warning: dss1_fck usecount %d, disabling\n", c); + while (c-- > 0) + clk_disable(core.dss1_fck); + } + + c = core.dss2_fck->usecount; + if (c > 0) { + DSSERR("warning: dss2_fck usecount %d, disabling\n", c); + while (c-- > 0) + clk_disable(core.dss2_fck); + } + + c = core.dss_54m_fck->usecount; + if (c > 0) { + DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c); + while (c-- > 0) + clk_disable(core.dss_54m_fck); + } + + if (core.dss_96m_fck) { + c = core.dss_96m_fck->usecount; + if (c > 0) { + DSSERR("warning: dss_96m_fck usecount %d, disabling\n", + c); + while (c-- > 0) + clk_disable(core.dss_96m_fck); + } + } + + dss_put_clocks(); + + dss_uninit_overlays(pdev); + dss_uninit_overlay_managers(pdev); + + for (i = 0; i < pdata->num_devices; ++i) + omap_dss_unregister_device(pdata->devices[i]); + + return 0; +} + +static void omap_dss_shutdown(struct platform_device *pdev) +{ + DSSDBG("shutdown\n"); + dss_disable_all_devices(); +} + +static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state) +{ + DSSDBG("suspend %d\n", state.event); + + return dss_suspend_all_devices(); +} + +static int omap_dss_resume(struct platform_device *pdev) +{ + DSSDBG("resume\n"); + + return dss_resume_all_devices(); +} + +static struct platform_driver omap_dss_driver = { + .probe = omap_dss_probe, + .remove = omap_dss_remove, + .shutdown = omap_dss_shutdown, + .suspend = omap_dss_suspend, + .resume = omap_dss_resume, + .driver = { + .name = "omapdss", + .owner = THIS_MODULE, + }, +}; + +/* BUS */ +static int dss_bus_match(struct device *dev, struct device_driver *driver) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + + DSSDBG("bus_match. dev %s/%s, drv %s\n", + dev_name(dev), dssdev->driver_name, driver->name); + + return strcmp(dssdev->driver_name, driver->name) == 0; +} + +static ssize_t device_name_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + return snprintf(buf, PAGE_SIZE, "%s\n", + dssdev->name ? + dssdev->name : ""); +} + +static struct device_attribute default_dev_attrs[] = { + __ATTR(name, S_IRUGO, device_name_show, NULL), + __ATTR_NULL, +}; + +static ssize_t driver_name_show(struct device_driver *drv, char *buf) +{ + struct omap_dss_driver *dssdrv = to_dss_driver(drv); + return snprintf(buf, PAGE_SIZE, "%s\n", + dssdrv->driver.name ? + dssdrv->driver.name : ""); +} +static struct driver_attribute default_drv_attrs[] = { + __ATTR(name, S_IRUGO, driver_name_show, NULL), + __ATTR_NULL, +}; + +static struct bus_type dss_bus_type = { + .name = "omapdss", + .match = dss_bus_match, + .dev_attrs = default_dev_attrs, + .drv_attrs = default_drv_attrs, +}; + +static void dss_bus_release(struct device *dev) +{ + DSSDBG("bus_release\n"); +} + +static struct device dss_bus = { + .release = dss_bus_release, +}; + +struct bus_type *dss_get_bus(void) +{ + return &dss_bus_type; +} + +/* DRIVER */ +static int dss_driver_probe(struct device *dev) +{ + int r; + struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); + struct omap_dss_device *dssdev = to_dss_device(dev); + struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; + bool force; + + DSSDBG("driver_probe: dev %s/%s, drv %s\n", + dev_name(dev), dssdev->driver_name, + dssdrv->driver.name); + + dss_init_device(core.pdev, dssdev); + + /* skip this if the device is behind a ctrl */ + if (!dssdev->panel.ctrl) { + force = pdata->default_device == dssdev; + dss_recheck_connections(dssdev, force); + } + + r = dssdrv->probe(dssdev); + + if (r) { + DSSERR("driver probe failed: %d\n", r); + return r; + } + + DSSDBG("probe done for device %s\n", dev_name(dev)); + + dssdev->driver = dssdrv; + + return 0; +} + +static int dss_driver_remove(struct device *dev) +{ + struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); + struct omap_dss_device *dssdev = to_dss_device(dev); + + DSSDBG("driver_remove: dev %s/%s\n", dev_name(dev), + dssdev->driver_name); + + dssdrv->remove(dssdev); + + dss_uninit_device(core.pdev, dssdev); + + dssdev->driver = NULL; + + return 0; +} + +int omap_dss_register_driver(struct omap_dss_driver *dssdriver) +{ + dssdriver->driver.bus = &dss_bus_type; + dssdriver->driver.probe = dss_driver_probe; + dssdriver->driver.remove = dss_driver_remove; + return driver_register(&dssdriver->driver); +} +EXPORT_SYMBOL(omap_dss_register_driver); + +void omap_dss_unregister_driver(struct omap_dss_driver *dssdriver) +{ + driver_unregister(&dssdriver->driver); +} +EXPORT_SYMBOL(omap_dss_unregister_driver); + +/* DEVICE */ +static void reset_device(struct device *dev, int check) +{ + u8 *dev_p = (u8 *)dev; + u8 *dev_end = dev_p + sizeof(*dev); + void *saved_pdata; + + saved_pdata = dev->platform_data; + if (check) { + /* + * Check if there is any other setting than platform_data + * in struct device; warn that these will be reset by our + * init. + */ + dev->platform_data = NULL; + while (dev_p < dev_end) { + if (*dev_p) { + WARN("%s: struct device fields will be " + "discarded\n", + __func__); + break; + } + dev_p++; + } + } + memset(dev, 0, sizeof(*dev)); + dev->platform_data = saved_pdata; +} + + +static void omap_dss_dev_release(struct device *dev) +{ + reset_device(dev, 0); +} + +int omap_dss_register_device(struct omap_dss_device *dssdev) +{ + static int dev_num; + static int panel_num; + int r; + + WARN_ON(!dssdev->driver_name); + + reset_device(&dssdev->dev, 1); + dssdev->dev.bus = &dss_bus_type; + dssdev->dev.parent = &dss_bus; + dssdev->dev.release = omap_dss_dev_release; + dev_set_name(&dssdev->dev, "display%d", dev_num++); + r = device_register(&dssdev->dev); + if (r) + return r; + + if (dssdev->ctrl.panel) { + struct omap_dss_device *panel = dssdev->ctrl.panel; + + panel->panel.ctrl = dssdev; + + reset_device(&panel->dev, 1); + panel->dev.bus = &dss_bus_type; + panel->dev.parent = &dssdev->dev; + panel->dev.release = omap_dss_dev_release; + dev_set_name(&panel->dev, "panel%d", panel_num++); + r = device_register(&panel->dev); + if (r) + return r; + } + + return 0; +} + +void omap_dss_unregister_device(struct omap_dss_device *dssdev) +{ + device_unregister(&dssdev->dev); + + if (dssdev->ctrl.panel) { + struct omap_dss_device *panel = dssdev->ctrl.panel; + device_unregister(&panel->dev); + } +} + +/* BUS */ +static int omap_dss_bus_register(void) +{ + int r; + + r = bus_register(&dss_bus_type); + if (r) { + DSSERR("bus register failed\n"); + return r; + } + + dev_set_name(&dss_bus, "omapdss"); + r = device_register(&dss_bus); + if (r) { + DSSERR("bus driver register failed\n"); + bus_unregister(&dss_bus_type); + return r; + } + + return 0; +} + +/* INIT */ + +#ifdef CONFIG_OMAP2_DSS_MODULE +static void omap_dss_bus_unregister(void) +{ + device_unregister(&dss_bus); + + bus_unregister(&dss_bus_type); +} + +static int __init omap_dss_init(void) +{ + int r; + + r = omap_dss_bus_register(); + if (r) + return r; + + r = platform_driver_register(&omap_dss_driver); + if (r) { + omap_dss_bus_unregister(); + return r; + } + + return 0; +} + +static void __exit omap_dss_exit(void) +{ + platform_driver_unregister(&omap_dss_driver); + + omap_dss_bus_unregister(); +} + +module_init(omap_dss_init); +module_exit(omap_dss_exit); +#else +static int __init omap_dss_init(void) +{ + return omap_dss_bus_register(); +} + +static int __init omap_dss_init2(void) +{ + return platform_driver_register(&omap_dss_driver); +} + +core_initcall(omap_dss_init); +device_initcall(omap_dss_init2); +#endif + +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); +MODULE_DESCRIPTION("OMAP2/3 Display Subsystem"); +MODULE_LICENSE("GPL v2"); + diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c new file mode 100644 index 0000000..9b05ee6 --- /dev/null +++ b/drivers/video/omap2/dss/dss.c @@ -0,0 +1,596 @@ +/* + * linux/drivers/video/omap2/dss/dss.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DSS" + +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/seq_file.h> +#include <linux/clk.h> + +#include <plat/display.h> +#include "dss.h" + +#define DSS_BASE 0x48050000 + +#define DSS_SZ_REGS SZ_512 + +struct dss_reg { + u16 idx; +}; + +#define DSS_REG(idx) ((const struct dss_reg) { idx }) + +#define DSS_REVISION DSS_REG(0x0000) +#define DSS_SYSCONFIG DSS_REG(0x0010) +#define DSS_SYSSTATUS DSS_REG(0x0014) +#define DSS_IRQSTATUS DSS_REG(0x0018) +#define DSS_CONTROL DSS_REG(0x0040) +#define DSS_SDI_CONTROL DSS_REG(0x0044) +#define DSS_PLL_CONTROL DSS_REG(0x0048) +#define DSS_SDI_STATUS DSS_REG(0x005C) + +#define REG_GET(idx, start, end) \ + FLD_GET(dss_read_reg(idx), start, end) + +#define REG_FLD_MOD(idx, val, start, end) \ + dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end)) + +static struct { + void __iomem *base; + + struct clk *dpll4_m4_ck; + + unsigned long cache_req_pck; + unsigned long cache_prate; + struct dss_clock_info cache_dss_cinfo; + struct dispc_clock_info cache_dispc_cinfo; + + u32 ctx[DSS_SZ_REGS / sizeof(u32)]; +} dss; + +static int _omap_dss_wait_reset(void); + +static inline void dss_write_reg(const struct dss_reg idx, u32 val) +{ + __raw_writel(val, dss.base + idx.idx); +} + +static inline u32 dss_read_reg(const struct dss_reg idx) +{ + return __raw_readl(dss.base + idx.idx); +} + +#define SR(reg) \ + dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg) +#define RR(reg) \ + dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)]) + +void dss_save_context(void) +{ + if (cpu_is_omap24xx()) + return; + + SR(SYSCONFIG); + SR(CONTROL); + +#ifdef CONFIG_OMAP2_DSS_SDI + SR(SDI_CONTROL); + SR(PLL_CONTROL); +#endif +} + +void dss_restore_context(void) +{ + if (_omap_dss_wait_reset()) + DSSERR("DSS not coming out of reset after sleep\n"); + + RR(SYSCONFIG); + RR(CONTROL); + +#ifdef CONFIG_OMAP2_DSS_SDI + RR(SDI_CONTROL); + RR(PLL_CONTROL); +#endif +} + +#undef SR +#undef RR + +void dss_sdi_init(u8 datapairs) +{ + u32 l; + + BUG_ON(datapairs > 3 || datapairs < 1); + + l = dss_read_reg(DSS_SDI_CONTROL); + l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */ + l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */ + l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */ + dss_write_reg(DSS_SDI_CONTROL, l); + + l = dss_read_reg(DSS_PLL_CONTROL); + l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */ + l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */ + l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */ + dss_write_reg(DSS_PLL_CONTROL, l); +} + +int dss_sdi_enable(void) +{ + unsigned long timeout; + + dispc_pck_free_enable(1); + + /* Reset SDI PLL */ + REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */ + udelay(1); /* wait 2x PCLK */ + + /* Lock SDI PLL */ + REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */ + + /* Waiting for PLL lock request to complete */ + timeout = jiffies + msecs_to_jiffies(500); + while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6)) { + if (time_after_eq(jiffies, timeout)) { + DSSERR("PLL lock request timed out\n"); + goto err1; + } + } + + /* Clearing PLL_GO bit */ + REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28); + + /* Waiting for PLL to lock */ + timeout = jiffies + msecs_to_jiffies(500); + while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5))) { + if (time_after_eq(jiffies, timeout)) { + DSSERR("PLL lock timed out\n"); + goto err1; + } + } + + dispc_lcd_enable_signal(1); + + /* Waiting for SDI reset to complete */ + timeout = jiffies + msecs_to_jiffies(500); + while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2))) { + if (time_after_eq(jiffies, timeout)) { + DSSERR("SDI reset timed out\n"); + goto err2; + } + } + + return 0; + + err2: + dispc_lcd_enable_signal(0); + err1: + /* Reset SDI PLL */ + REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */ + + dispc_pck_free_enable(0); + + return -ETIMEDOUT; +} + +void dss_sdi_disable(void) +{ + dispc_lcd_enable_signal(0); + + dispc_pck_free_enable(0); + + /* Reset SDI PLL */ + REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */ +} + +void dss_dump_clocks(struct seq_file *s) +{ + unsigned long dpll4_ck_rate; + unsigned long dpll4_m4_ck_rate; + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dpll4_ck_rate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); + dpll4_m4_ck_rate = clk_get_rate(dss.dpll4_m4_ck); + + seq_printf(s, "- DSS -\n"); + + seq_printf(s, "dpll4_ck %lu\n", dpll4_ck_rate); + + seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n", + dpll4_ck_rate, + dpll4_ck_rate / dpll4_m4_ck_rate, + dss_clk_get_rate(DSS_CLK_FCK1)); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +} + +void dss_dump_regs(struct seq_file *s) +{ +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r)) + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + DUMPREG(DSS_REVISION); + DUMPREG(DSS_SYSCONFIG); + DUMPREG(DSS_SYSSTATUS); + DUMPREG(DSS_IRQSTATUS); + DUMPREG(DSS_CONTROL); + DUMPREG(DSS_SDI_CONTROL); + DUMPREG(DSS_PLL_CONTROL); + DUMPREG(DSS_SDI_STATUS); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +#undef DUMPREG +} + +void dss_select_clk_source(bool dsi, bool dispc) +{ + u32 r; + r = dss_read_reg(DSS_CONTROL); + r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */ + r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */ + dss_write_reg(DSS_CONTROL, r); +} + +int dss_get_dsi_clk_source(void) +{ + return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1); +} + +int dss_get_dispc_clk_source(void) +{ + return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0); +} + +/* calculate clock rates using dividers in cinfo */ +int dss_calc_clock_rates(struct dss_clock_info *cinfo) +{ + unsigned long prate; + + if (cinfo->fck_div > 16 || cinfo->fck_div == 0) + return -EINVAL; + + prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); + + cinfo->fck = prate / cinfo->fck_div; + + return 0; +} + +int dss_set_clock_div(struct dss_clock_info *cinfo) +{ + unsigned long prate; + int r; + + if (cpu_is_omap34xx()) { + prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); + DSSDBG("dpll4_m4 = %ld\n", prate); + + r = clk_set_rate(dss.dpll4_m4_ck, prate / cinfo->fck_div); + if (r) + return r; + } + + DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div); + + return 0; +} + +int dss_get_clock_div(struct dss_clock_info *cinfo) +{ + cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1); + + if (cpu_is_omap34xx()) { + unsigned long prate; + prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); + cinfo->fck_div = prate / (cinfo->fck / 2); + } else { + cinfo->fck_div = 0; + } + + return 0; +} + +unsigned long dss_get_dpll4_rate(void) +{ + if (cpu_is_omap34xx()) + return clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); + else + return 0; +} + +int dss_calc_clock_div(bool is_tft, unsigned long req_pck, + struct dss_clock_info *dss_cinfo, + struct dispc_clock_info *dispc_cinfo) +{ + unsigned long prate; + struct dss_clock_info best_dss; + struct dispc_clock_info best_dispc; + + unsigned long fck; + + u16 fck_div; + + int match = 0; + int min_fck_per_pck; + + prate = dss_get_dpll4_rate(); + + fck = dss_clk_get_rate(DSS_CLK_FCK1); + if (req_pck == dss.cache_req_pck && + ((cpu_is_omap34xx() && prate == dss.cache_prate) || + dss.cache_dss_cinfo.fck == fck)) { + DSSDBG("dispc clock info found from cache.\n"); + *dss_cinfo = dss.cache_dss_cinfo; + *dispc_cinfo = dss.cache_dispc_cinfo; + return 0; + } + + min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; + + if (min_fck_per_pck && + req_pck * min_fck_per_pck > DISPC_MAX_FCK) { + DSSERR("Requested pixel clock not possible with the current " + "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " + "the constraint off.\n"); + min_fck_per_pck = 0; + } + +retry: + memset(&best_dss, 0, sizeof(best_dss)); + memset(&best_dispc, 0, sizeof(best_dispc)); + + if (cpu_is_omap24xx()) { + struct dispc_clock_info cur_dispc; + /* XXX can we change the clock on omap2? */ + fck = dss_clk_get_rate(DSS_CLK_FCK1); + fck_div = 1; + + dispc_find_clk_divs(is_tft, req_pck, fck, &cur_dispc); + match = 1; + + best_dss.fck = fck; + best_dss.fck_div = fck_div; + + best_dispc = cur_dispc; + + goto found; + } else if (cpu_is_omap34xx()) { + for (fck_div = 16; fck_div > 0; --fck_div) { + struct dispc_clock_info cur_dispc; + + fck = prate / fck_div * 2; + + if (fck > DISPC_MAX_FCK) + continue; + + if (min_fck_per_pck && + fck < req_pck * min_fck_per_pck) + continue; + + match = 1; + + dispc_find_clk_divs(is_tft, req_pck, fck, &cur_dispc); + + if (abs(cur_dispc.pck - req_pck) < + abs(best_dispc.pck - req_pck)) { + + best_dss.fck = fck; + best_dss.fck_div = fck_div; + + best_dispc = cur_dispc; + + if (cur_dispc.pck == req_pck) + goto found; + } + } + } else { + BUG(); + } + +found: + if (!match) { + if (min_fck_per_pck) { + DSSERR("Could not find suitable clock settings.\n" + "Turning FCK/PCK constraint off and" + "trying again.\n"); + min_fck_per_pck = 0; + goto retry; + } + + DSSERR("Could not find suitable clock settings.\n"); + + return -EINVAL; + } + + if (dss_cinfo) + *dss_cinfo = best_dss; + if (dispc_cinfo) + *dispc_cinfo = best_dispc; + + dss.cache_req_pck = req_pck; + dss.cache_prate = prate; + dss.cache_dss_cinfo = best_dss; + dss.cache_dispc_cinfo = best_dispc; + + return 0; +} + + + +static irqreturn_t dss_irq_handler_omap2(int irq, void *arg) +{ + dispc_irq_handler(); + + return IRQ_HANDLED; +} + +static irqreturn_t dss_irq_handler_omap3(int irq, void *arg) +{ + u32 irqstatus; + + irqstatus = dss_read_reg(DSS_IRQSTATUS); + + if (irqstatus & (1<<0)) /* DISPC_IRQ */ + dispc_irq_handler(); +#ifdef CONFIG_OMAP2_DSS_DSI + if (irqstatus & (1<<1)) /* DSI_IRQ */ + dsi_irq_handler(); +#endif + + return IRQ_HANDLED; +} + +static int _omap_dss_wait_reset(void) +{ + unsigned timeout = 1000; + + while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) { + udelay(1); + if (!--timeout) { + DSSERR("soft reset failed\n"); + return -ENODEV; + } + } + + return 0; +} + +static int _omap_dss_reset(void) +{ + /* Soft reset */ + REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1); + return _omap_dss_wait_reset(); +} + +void dss_set_venc_output(enum omap_dss_venc_type type) +{ + int l = 0; + + if (type == OMAP_DSS_VENC_TYPE_COMPOSITE) + l = 0; + else if (type == OMAP_DSS_VENC_TYPE_SVIDEO) + l = 1; + else + BUG(); + + /* venc out selection. 0 = comp, 1 = svideo */ + REG_FLD_MOD(DSS_CONTROL, l, 6, 6); +} + +void dss_set_dac_pwrdn_bgz(bool enable) +{ + REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */ +} + +int dss_init(bool skip_init) +{ + int r; + u32 rev; + + dss.base = ioremap(DSS_BASE, DSS_SZ_REGS); + if (!dss.base) { + DSSERR("can't ioremap DSS\n"); + r = -ENOMEM; + goto fail0; + } + + if (!skip_init) { + /* disable LCD and DIGIT output. This seems to fix the synclost + * problem that we get, if the bootloader starts the DSS and + * the kernel resets it */ + omap_writel(omap_readl(0x48050440) & ~0x3, 0x48050440); + + /* We need to wait here a bit, otherwise we sometimes start to + * get synclost errors, and after that only power cycle will + * restore DSS functionality. I have no idea why this happens. + * And we have to wait _before_ resetting the DSS, but after + * enabling clocks. + */ + msleep(50); + + _omap_dss_reset(); + } + + /* autoidle */ + REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0); + + /* Select DPLL */ + REG_FLD_MOD(DSS_CONTROL, 0, 0, 0); + +#ifdef CONFIG_OMAP2_DSS_VENC + REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */ + REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */ + REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */ +#endif + + r = request_irq(INT_24XX_DSS_IRQ, + cpu_is_omap24xx() + ? dss_irq_handler_omap2 + : dss_irq_handler_omap3, + 0, "OMAP DSS", NULL); + + if (r < 0) { + DSSERR("omap2 dss: request_irq failed\n"); + goto fail1; + } + + if (cpu_is_omap34xx()) { + dss.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck"); + if (IS_ERR(dss.dpll4_m4_ck)) { + DSSERR("Failed to get dpll4_m4_ck\n"); + r = PTR_ERR(dss.dpll4_m4_ck); + goto fail2; + } + } + + dss_save_context(); + + rev = dss_read_reg(DSS_REVISION); + printk(KERN_INFO "OMAP DSS rev %d.%d\n", + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); + + return 0; + +fail2: + free_irq(INT_24XX_DSS_IRQ, NULL); +fail1: + iounmap(dss.base); +fail0: + return r; +} + +void dss_exit(void) +{ + if (cpu_is_omap34xx()) + clk_put(dss.dpll4_m4_ck); + + free_irq(INT_24XX_DSS_IRQ, NULL); + + iounmap(dss.base); +} + diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h new file mode 100644 index 0000000..8da5ac4 --- /dev/null +++ b/drivers/video/omap2/dss/dss.h @@ -0,0 +1,370 @@ +/* + * linux/drivers/video/omap2/dss/dss.h + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __OMAP2_DSS_H +#define __OMAP2_DSS_H + +#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT +#define DEBUG +#endif + +#ifdef DEBUG +extern unsigned int dss_debug; +#ifdef DSS_SUBSYS_NAME +#define DSSDBG(format, ...) \ + if (dss_debug) \ + printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \ + ## __VA_ARGS__) +#else +#define DSSDBG(format, ...) \ + if (dss_debug) \ + printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__) +#endif + +#ifdef DSS_SUBSYS_NAME +#define DSSDBGF(format, ...) \ + if (dss_debug) \ + printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \ + ": %s(" format ")\n", \ + __func__, \ + ## __VA_ARGS__) +#else +#define DSSDBGF(format, ...) \ + if (dss_debug) \ + printk(KERN_DEBUG "omapdss: " \ + ": %s(" format ")\n", \ + __func__, \ + ## __VA_ARGS__) +#endif + +#else /* DEBUG */ +#define DSSDBG(format, ...) +#define DSSDBGF(format, ...) +#endif + + +#ifdef DSS_SUBSYS_NAME +#define DSSERR(format, ...) \ + printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \ + ## __VA_ARGS__) +#else +#define DSSERR(format, ...) \ + printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__) +#endif + +#ifdef DSS_SUBSYS_NAME +#define DSSINFO(format, ...) \ + printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \ + ## __VA_ARGS__) +#else +#define DSSINFO(format, ...) \ + printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__) +#endif + +#ifdef DSS_SUBSYS_NAME +#define DSSWARN(format, ...) \ + printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \ + ## __VA_ARGS__) +#else +#define DSSWARN(format, ...) \ + printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__) +#endif + +/* OMAP TRM gives bitfields as start:end, where start is the higher bit + number. For example 7:0 */ +#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end)) +#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end)) +#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end)) +#define FLD_MOD(orig, val, start, end) \ + (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end)) + +#define DISPC_MAX_FCK 173000000 + +enum omap_burst_size { + OMAP_DSS_BURST_4x32 = 0, + OMAP_DSS_BURST_8x32 = 1, + OMAP_DSS_BURST_16x32 = 2, +}; + +enum omap_parallel_interface_mode { + OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */ + OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */ + OMAP_DSS_PARALLELMODE_DSI, +}; + +enum dss_clock { + DSS_CLK_ICK = 1 << 0, + DSS_CLK_FCK1 = 1 << 1, + DSS_CLK_FCK2 = 1 << 2, + DSS_CLK_54M = 1 << 3, + DSS_CLK_96M = 1 << 4, +}; + +struct dss_clock_info { + /* rates that we get with dividers below */ + unsigned long fck; + + /* dividers */ + u16 fck_div; +}; + +struct dispc_clock_info { + /* rates that we get with dividers below */ + unsigned long lck; + unsigned long pck; + + /* dividers */ + u16 lck_div; + u16 pck_div; +}; + +struct dsi_clock_info { + /* rates that we get with dividers below */ + unsigned long fint; + unsigned long clkin4ddr; + unsigned long clkin; + unsigned long dsi1_pll_fclk; + unsigned long dsi2_pll_fclk; + + unsigned long lp_clk; + + /* dividers */ + u16 regn; + u16 regm; + u16 regm3; + u16 regm4; + + u16 lp_clk_div; + + u8 highfreq; + bool use_dss2_fck; +}; + +struct seq_file; +struct platform_device; + +/* core */ +void dss_clk_enable(enum dss_clock clks); +void dss_clk_disable(enum dss_clock clks); +unsigned long dss_clk_get_rate(enum dss_clock clk); +int dss_need_ctx_restore(void); +void dss_dump_clocks(struct seq_file *s); +struct bus_type *dss_get_bus(void); + +/* display */ +int dss_suspend_all_devices(void); +int dss_resume_all_devices(void); +void dss_disable_all_devices(void); + +void dss_init_device(struct platform_device *pdev, + struct omap_dss_device *dssdev); +void dss_uninit_device(struct platform_device *pdev, + struct omap_dss_device *dssdev); +bool dss_use_replication(struct omap_dss_device *dssdev, + enum omap_color_mode mode); +void default_get_overlay_fifo_thresholds(enum omap_plane plane, + u32 fifo_size, enum omap_burst_size *burst_size, + u32 *fifo_low, u32 *fifo_high); + +/* manager */ +int dss_init_overlay_managers(struct platform_device *pdev); +void dss_uninit_overlay_managers(struct platform_device *pdev); +int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl); +void dss_setup_partial_planes(struct omap_dss_device *dssdev, + u16 *x, u16 *y, u16 *w, u16 *h); +void dss_start_update(struct omap_dss_device *dssdev); + +/* overlay */ +void dss_init_overlays(struct platform_device *pdev); +void dss_uninit_overlays(struct platform_device *pdev); +int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev); +void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr); +#ifdef L4_EXAMPLE +void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr); +#endif +void dss_recheck_connections(struct omap_dss_device *dssdev, bool force); + +/* DSS */ +int dss_init(bool skip_init); +void dss_exit(void); + +void dss_save_context(void); +void dss_restore_context(void); + +void dss_dump_regs(struct seq_file *s); + +void dss_sdi_init(u8 datapairs); +int dss_sdi_enable(void); +void dss_sdi_disable(void); + +void dss_select_clk_source(bool dsi, bool dispc); +int dss_get_dsi_clk_source(void); +int dss_get_dispc_clk_source(void); +void dss_set_venc_output(enum omap_dss_venc_type type); +void dss_set_dac_pwrdn_bgz(bool enable); + +unsigned long dss_get_dpll4_rate(void); +int dss_calc_clock_rates(struct dss_clock_info *cinfo); +int dss_set_clock_div(struct dss_clock_info *cinfo); +int dss_get_clock_div(struct dss_clock_info *cinfo); +int dss_calc_clock_div(bool is_tft, unsigned long req_pck, + struct dss_clock_info *dss_cinfo, + struct dispc_clock_info *dispc_cinfo); + +/* SDI */ +int sdi_init(bool skip_init); +void sdi_exit(void); +int sdi_init_display(struct omap_dss_device *display); + +/* DSI */ +int dsi_init(struct platform_device *pdev); +void dsi_exit(void); + +void dsi_dump_clocks(struct seq_file *s); +void dsi_dump_regs(struct seq_file *s); + +void dsi_save_context(void); +void dsi_restore_context(void); + +int dsi_init_display(struct omap_dss_device *display); +void dsi_irq_handler(void); +unsigned long dsi_get_dsi1_pll_rate(void); +int dsi_pll_set_clock_div(struct dsi_clock_info *cinfo); +int dsi_pll_calc_clock_div_pck(bool is_tft, unsigned long req_pck, + struct dsi_clock_info *cinfo, + struct dispc_clock_info *dispc_cinfo); +int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk, + bool enable_hsdiv); +void dsi_pll_uninit(void); +void dsi_get_overlay_fifo_thresholds(enum omap_plane plane, + u32 fifo_size, enum omap_burst_size *burst_size, + u32 *fifo_low, u32 *fifo_high); + +/* DPI */ +int dpi_init(void); +void dpi_exit(void); +int dpi_init_display(struct omap_dss_device *dssdev); + +/* DISPC */ +int dispc_init(void); +void dispc_exit(void); +void dispc_dump_clocks(struct seq_file *s); +void dispc_dump_regs(struct seq_file *s); +void dispc_irq_handler(void); +void dispc_fake_vsync_irq(void); + +void dispc_save_context(void); +void dispc_restore_context(void); + +void dispc_enable_sidle(void); +void dispc_disable_sidle(void); + +void dispc_lcd_enable_signal_polarity(bool act_high); +void dispc_lcd_enable_signal(bool enable); +void dispc_pck_free_enable(bool enable); +void dispc_enable_fifohandcheck(bool enable); + +void dispc_set_lcd_size(u16 width, u16 height); +void dispc_set_digit_size(u16 width, u16 height); +u32 dispc_get_plane_fifo_size(enum omap_plane plane); +void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high); +void dispc_enable_fifomerge(bool enable); +void dispc_set_burst_size(enum omap_plane plane, + enum omap_burst_size burst_size); + +void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr); +void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr); +void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y); +void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height); +void dispc_set_channel_out(enum omap_plane plane, + enum omap_channel channel_out); + +int dispc_setup_plane(enum omap_plane plane, + u32 paddr, u16 screen_width, + u16 pos_x, u16 pos_y, + u16 width, u16 height, + u16 out_width, u16 out_height, + enum omap_color_mode color_mode, + bool ilace, + enum omap_dss_rotation_type rotation_type, + u8 rotation, bool mirror, + u8 global_alpha); + +bool dispc_go_busy(enum omap_channel channel); +void dispc_go(enum omap_channel channel); +void dispc_enable_lcd_out(bool enable); +void dispc_enable_digit_out(bool enable); +int dispc_enable_plane(enum omap_plane plane, bool enable); +void dispc_enable_replication(enum omap_plane plane, bool enable); + +void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode); +void dispc_set_tft_data_lines(u8 data_lines); +void dispc_set_lcd_display_type(enum omap_lcd_display_type type); +void dispc_set_loadmode(enum omap_dss_load_mode mode); + +void dispc_set_default_color(enum omap_channel channel, u32 color); +u32 dispc_get_default_color(enum omap_channel channel); +void dispc_set_trans_key(enum omap_channel ch, + enum omap_dss_trans_key_type type, + u32 trans_key); +void dispc_get_trans_key(enum omap_channel ch, + enum omap_dss_trans_key_type *type, + u32 *trans_key); +void dispc_enable_trans_key(enum omap_channel ch, bool enable); +void dispc_enable_alpha_blending(enum omap_channel ch, bool enable); +bool dispc_trans_key_enabled(enum omap_channel ch); +bool dispc_alpha_blending_enabled(enum omap_channel ch); + +bool dispc_lcd_timings_ok(struct omap_video_timings *timings); +void dispc_set_lcd_timings(struct omap_video_timings *timings); +unsigned long dispc_fclk_rate(void); +unsigned long dispc_lclk_rate(void); +unsigned long dispc_pclk_rate(void); +void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb); +void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, + struct dispc_clock_info *cinfo); +int dispc_calc_clock_rates(unsigned long dispc_fclk_rate, + struct dispc_clock_info *cinfo); +int dispc_set_clock_div(struct dispc_clock_info *cinfo); +int dispc_get_clock_div(struct dispc_clock_info *cinfo); + + +/* VENC */ +int venc_init(struct platform_device *pdev); +void venc_exit(void); +void venc_dump_regs(struct seq_file *s); +int venc_init_display(struct omap_dss_device *display); + +/* RFBI */ +int rfbi_init(void); +void rfbi_exit(void); +void rfbi_dump_regs(struct seq_file *s); + +int rfbi_configure(int rfbi_module, int bpp, int lines); +void rfbi_enable_rfbi(bool enable); +void rfbi_transfer_area(u16 width, u16 height, + void (callback)(void *data), void *data); +void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t); +unsigned long rfbi_get_max_tx_rate(void); +int rfbi_init_display(struct omap_dss_device *display); + +#endif -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 08/19] OMAP: DSS2: Add more core files 2009-11-09 11:45 ` [PATCH 07/19] OMAP: DSS2: Display Subsystem Driver core Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 09/19] OMAP: DSS2: DISPC Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Add more core files to DSS2. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/display.c | 671 +++++++++++++++++ drivers/video/omap2/dss/manager.c | 1487 +++++++++++++++++++++++++++++++++++++ drivers/video/omap2/dss/overlay.c | 680 +++++++++++++++++ 3 files changed, 2838 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/display.c create mode 100644 drivers/video/omap2/dss/manager.c create mode 100644 drivers/video/omap2/dss/overlay.c diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c new file mode 100644 index 0000000..3b92b84 --- /dev/null +++ b/drivers/video/omap2/dss/display.c @@ -0,0 +1,671 @@ +/* + * linux/drivers/video/omap2/dss/display.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DISPLAY" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/jiffies.h> +#include <linux/list.h> +#include <linux/platform_device.h> + +#include <plat/display.h> +#include "dss.h" + +static LIST_HEAD(display_list); + +static ssize_t display_enabled_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED; + + return snprintf(buf, PAGE_SIZE, "%d\n", enabled); +} + +static ssize_t display_enabled_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + bool enabled, r; + + enabled = simple_strtoul(buf, NULL, 10); + + if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) { + if (enabled) { + r = dssdev->enable(dssdev); + if (r) + return r; + } else { + dssdev->disable(dssdev); + } + } + + return size; +} + +static ssize_t display_upd_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO; + if (dssdev->get_update_mode) + mode = dssdev->get_update_mode(dssdev); + return snprintf(buf, PAGE_SIZE, "%d\n", mode); +} + +static ssize_t display_upd_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int val, r; + enum omap_dss_update_mode mode; + + val = simple_strtoul(buf, NULL, 10); + + switch (val) { + case OMAP_DSS_UPDATE_DISABLED: + case OMAP_DSS_UPDATE_AUTO: + case OMAP_DSS_UPDATE_MANUAL: + mode = (enum omap_dss_update_mode)val; + break; + default: + return -EINVAL; + } + + r = dssdev->set_update_mode(dssdev, mode); + if (r) + return r; + + return size; +} + +static ssize_t display_tear_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + return snprintf(buf, PAGE_SIZE, "%d\n", + dssdev->get_te ? dssdev->get_te(dssdev) : 0); +} + +static ssize_t display_tear_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long te; + int r; + + if (!dssdev->enable_te || !dssdev->get_te) + return -ENOENT; + + te = simple_strtoul(buf, NULL, 0); + + r = dssdev->enable_te(dssdev, te); + if (r) + return r; + + return size; +} + +static ssize_t display_timings_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct omap_video_timings t; + + if (!dssdev->get_timings) + return -ENOENT; + + dssdev->get_timings(dssdev, &t); + + return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n", + t.pixel_clock, + t.x_res, t.hfp, t.hbp, t.hsw, + t.y_res, t.vfp, t.vbp, t.vsw); +} + +static ssize_t display_timings_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct omap_video_timings t; + int r, found; + + if (!dssdev->set_timings || !dssdev->check_timings) + return -ENOENT; + + found = 0; +#ifdef CONFIG_OMAP2_DSS_VENC + if (strncmp("pal", buf, 3) == 0) { + t = omap_dss_pal_timings; + found = 1; + } else if (strncmp("ntsc", buf, 4) == 0) { + t = omap_dss_ntsc_timings; + found = 1; + } +#endif + if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu", + &t.pixel_clock, + &t.x_res, &t.hfp, &t.hbp, &t.hsw, + &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9) + return -EINVAL; + + r = dssdev->check_timings(dssdev, &t); + if (r) + return r; + + dssdev->set_timings(dssdev, &t); + + return size; +} + +static ssize_t display_rotate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int rotate; + if (!dssdev->get_rotate) + return -ENOENT; + rotate = dssdev->get_rotate(dssdev); + return snprintf(buf, PAGE_SIZE, "%u\n", rotate); +} + +static ssize_t display_rotate_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long rot; + int r; + + if (!dssdev->set_rotate || !dssdev->get_rotate) + return -ENOENT; + + rot = simple_strtoul(buf, NULL, 0); + + r = dssdev->set_rotate(dssdev, rot); + if (r) + return r; + + return size; +} + +static ssize_t display_mirror_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int mirror; + if (!dssdev->get_mirror) + return -ENOENT; + mirror = dssdev->get_mirror(dssdev); + return snprintf(buf, PAGE_SIZE, "%u\n", mirror); +} + +static ssize_t display_mirror_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long mirror; + int r; + + if (!dssdev->set_mirror || !dssdev->get_mirror) + return -ENOENT; + + mirror = simple_strtoul(buf, NULL, 0); + + r = dssdev->set_mirror(dssdev, mirror); + if (r) + return r; + + return size; +} + +static ssize_t display_wss_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned int wss; + + if (!dssdev->get_wss) + return -ENOENT; + + wss = dssdev->get_wss(dssdev); + + return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss); +} + +static ssize_t display_wss_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long wss; + int r; + + if (!dssdev->get_wss || !dssdev->set_wss) + return -ENOENT; + + if (strict_strtoul(buf, 0, &wss)) + return -EINVAL; + + if (wss > 0xfffff) + return -EINVAL; + + r = dssdev->set_wss(dssdev, wss); + if (r) + return r; + + return size; +} + +static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR, + display_enabled_show, display_enabled_store); +static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR, + display_upd_mode_show, display_upd_mode_store); +static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR, + display_tear_show, display_tear_store); +static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR, + display_timings_show, display_timings_store); +static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR, + display_rotate_show, display_rotate_store); +static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR, + display_mirror_show, display_mirror_store); +static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR, + display_wss_show, display_wss_store); + +static struct device_attribute *display_sysfs_attrs[] = { + &dev_attr_enabled, + &dev_attr_update_mode, + &dev_attr_tear_elim, + &dev_attr_timings, + &dev_attr_rotate, + &dev_attr_mirror, + &dev_attr_wss, + NULL +}; + +static void default_get_resolution(struct omap_dss_device *dssdev, + u16 *xres, u16 *yres) +{ + *xres = dssdev->panel.timings.x_res; + *yres = dssdev->panel.timings.y_res; +} + +void default_get_overlay_fifo_thresholds(enum omap_plane plane, + u32 fifo_size, enum omap_burst_size *burst_size, + u32 *fifo_low, u32 *fifo_high) +{ + unsigned burst_size_bytes; + + *burst_size = OMAP_DSS_BURST_16x32; + burst_size_bytes = 16 * 32 / 8; + + *fifo_high = fifo_size - 1; + *fifo_low = fifo_size - burst_size_bytes; +} + +static int default_wait_vsync(struct omap_dss_device *dssdev) +{ + unsigned long timeout = msecs_to_jiffies(500); + u32 irq; + + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) + irq = DISPC_IRQ_EVSYNC_ODD; + else + irq = DISPC_IRQ_VSYNC; + + return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); +} + +static int default_get_recommended_bpp(struct omap_dss_device *dssdev) +{ + if (dssdev->panel.recommended_bpp) + return dssdev->panel.recommended_bpp; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + if (dssdev->phy.dpi.data_lines == 24) + return 24; + else + return 16; + + case OMAP_DISPLAY_TYPE_DBI: + case OMAP_DISPLAY_TYPE_DSI: + if (dssdev->ctrl.pixel_size == 24) + return 24; + else + return 16; + case OMAP_DISPLAY_TYPE_VENC: + case OMAP_DISPLAY_TYPE_SDI: + return 24; + return 24; + default: + BUG(); + } +} + +/* Checks if replication logic should be used. Only use for active matrix, + * when overlay is in RGB12U or RGB16 mode, and LCD interface is + * 18bpp or 24bpp */ +bool dss_use_replication(struct omap_dss_device *dssdev, + enum omap_color_mode mode) +{ + int bpp; + + if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16) + return false; + + if (dssdev->type == OMAP_DISPLAY_TYPE_DPI && + (dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0) + return false; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + bpp = dssdev->phy.dpi.data_lines; + break; + case OMAP_DISPLAY_TYPE_VENC: + case OMAP_DISPLAY_TYPE_SDI: + bpp = 24; + break; + case OMAP_DISPLAY_TYPE_DBI: + case OMAP_DISPLAY_TYPE_DSI: + bpp = dssdev->ctrl.pixel_size; + break; + default: + BUG(); + } + + return bpp > 16; +} + +void dss_init_device(struct platform_device *pdev, + struct omap_dss_device *dssdev) +{ + struct device_attribute *attr; + int i; + int r; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: +#ifdef CONFIG_OMAP2_DSS_RFBI + case OMAP_DISPLAY_TYPE_DBI: +#endif +#ifdef CONFIG_OMAP2_DSS_SDI + case OMAP_DISPLAY_TYPE_SDI: +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + case OMAP_DISPLAY_TYPE_DSI: +#endif +#ifdef CONFIG_OMAP2_DSS_VENC + case OMAP_DISPLAY_TYPE_VENC: +#endif + break; + default: + DSSERR("Support for display '%s' not compiled in.\n", + dssdev->name); + return; + } + + dssdev->get_resolution = default_get_resolution; + dssdev->get_recommended_bpp = default_get_recommended_bpp; + dssdev->wait_vsync = default_wait_vsync; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + r = dpi_init_display(dssdev); + break; +#ifdef CONFIG_OMAP2_DSS_RFBI + case OMAP_DISPLAY_TYPE_DBI: + r = rfbi_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_VENC + case OMAP_DISPLAY_TYPE_VENC: + r = venc_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_SDI + case OMAP_DISPLAY_TYPE_SDI: + r = sdi_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + case OMAP_DISPLAY_TYPE_DSI: + r = dsi_init_display(dssdev); + break; +#endif + default: + BUG(); + } + + if (r) { + DSSERR("failed to init display %s\n", dssdev->name); + return; + } + + /* create device sysfs files */ + i = 0; + while ((attr = display_sysfs_attrs[i++]) != NULL) { + r = device_create_file(&dssdev->dev, attr); + if (r) + DSSERR("failed to create sysfs file\n"); + } + + /* create display? sysfs links */ + r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj, + dev_name(&dssdev->dev)); + if (r) + DSSERR("failed to create sysfs display link\n"); +} + +void dss_uninit_device(struct platform_device *pdev, + struct omap_dss_device *dssdev) +{ + struct device_attribute *attr; + int i = 0; + + sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev)); + + while ((attr = display_sysfs_attrs[i++]) != NULL) + device_remove_file(&dssdev->dev, attr); + + if (dssdev->manager) + dssdev->manager->unset_device(dssdev->manager); +} + +static int dss_suspend_device(struct device *dev, void *data) +{ + int r; + struct omap_dss_device *dssdev = to_dss_device(dev); + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { + dssdev->activate_after_resume = false; + return 0; + } + + if (!dssdev->suspend) { + DSSERR("display '%s' doesn't implement suspend\n", + dssdev->name); + return -ENOSYS; + } + + r = dssdev->suspend(dssdev); + if (r) + return r; + + dssdev->activate_after_resume = true; + + return 0; +} + +int dss_suspend_all_devices(void) +{ + int r; + struct bus_type *bus = dss_get_bus(); + + r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device); + if (r) { + /* resume all displays that were suspended */ + dss_resume_all_devices(); + return r; + } + + return 0; +} + +static int dss_resume_device(struct device *dev, void *data) +{ + int r; + struct omap_dss_device *dssdev = to_dss_device(dev); + + if (dssdev->activate_after_resume && dssdev->resume) { + r = dssdev->resume(dssdev); + if (r) + return r; + } + + dssdev->activate_after_resume = false; + + return 0; +} + +int dss_resume_all_devices(void) +{ + struct bus_type *bus = dss_get_bus(); + + return bus_for_each_dev(bus, NULL, NULL, dss_resume_device); +} + +static int dss_disable_device(struct device *dev, void *data) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + dssdev->disable(dssdev); + return 0; +} + +void dss_disable_all_devices(void) +{ + struct bus_type *bus = dss_get_bus(); + bus_for_each_dev(bus, NULL, NULL, dss_disable_device); +} + + +void omap_dss_get_device(struct omap_dss_device *dssdev) +{ + get_device(&dssdev->dev); +} +EXPORT_SYMBOL(omap_dss_get_device); + +void omap_dss_put_device(struct omap_dss_device *dssdev) +{ + put_device(&dssdev->dev); +} +EXPORT_SYMBOL(omap_dss_put_device); + +/* ref count of the found device is incremented. ref count + * of from-device is decremented. */ +struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from) +{ + struct device *dev; + struct device *dev_start = NULL; + struct omap_dss_device *dssdev = NULL; + + int match(struct device *dev, void *data) + { + /* skip panels connected to controllers */ + if (to_dss_device(dev)->panel.ctrl) + return 0; + + return 1; + } + + if (from) + dev_start = &from->dev; + dev = bus_find_device(dss_get_bus(), dev_start, NULL, match); + if (dev) + dssdev = to_dss_device(dev); + if (from) + put_device(&from->dev); + + return dssdev; +} +EXPORT_SYMBOL(omap_dss_get_next_device); + +struct omap_dss_device *omap_dss_find_device(void *data, + int (*match)(struct omap_dss_device *dssdev, void *data)) +{ + struct omap_dss_device *dssdev = NULL; + + while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) { + if (match(dssdev, data)) + return dssdev; + } + + return NULL; +} +EXPORT_SYMBOL(omap_dss_find_device); + +int omap_dss_start_device(struct omap_dss_device *dssdev) +{ + int r; + + if (!dssdev->driver) { + DSSDBG("no driver\n"); + r = -ENODEV; + goto err0; + } + + if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) { + DSSDBG("no panel driver\n"); + r = -ENODEV; + goto err0; + } + + if (!try_module_get(dssdev->dev.driver->owner)) { + r = -ENODEV; + goto err0; + } + + if (dssdev->ctrl.panel) { + if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) { + r = -ENODEV; + goto err1; + } + } + + return 0; +err1: + module_put(dssdev->dev.driver->owner); +err0: + return r; +} +EXPORT_SYMBOL(omap_dss_start_device); + +void omap_dss_stop_device(struct omap_dss_device *dssdev) +{ + if (dssdev->ctrl.panel) + module_put(dssdev->ctrl.panel->dev.driver->owner); + + module_put(dssdev->dev.driver->owner); +} +EXPORT_SYMBOL(omap_dss_stop_device); + diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c new file mode 100644 index 0000000..27d9c46 --- /dev/null +++ b/drivers/video/omap2/dss/manager.c @@ -0,0 +1,1487 @@ +/* + * linux/drivers/video/omap2/dss/manager.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "MANAGER" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/jiffies.h> + +#include <plat/display.h> +#include <plat/cpu.h> + +#include "dss.h" + +static int num_managers; +static struct list_head manager_list; + +static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name); +} + +static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", + mgr->device ? mgr->device->name : "<none>"); +} + +static ssize_t manager_display_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + int r = 0; + size_t len = size; + struct omap_dss_device *dssdev = NULL; + + int match(struct omap_dss_device *dssdev, void *data) + { + const char *str = data; + return sysfs_streq(dssdev->name, str); + } + + if (buf[size-1] == '\n') + --len; + + if (len > 0) + dssdev = omap_dss_find_device((void *)buf, match); + + if (len > 0 && dssdev == NULL) + return -EINVAL; + + if (dssdev) + DSSDBG("display %s found\n", dssdev->name); + + if (mgr->device) { + r = mgr->unset_device(mgr); + if (r) { + DSSERR("failed to unset display\n"); + goto put_device; + } + } + + if (dssdev) { + r = mgr->set_device(mgr, dssdev); + if (r) { + DSSERR("failed to set manager\n"); + goto put_device; + } + + r = mgr->apply(mgr); + if (r) { + DSSERR("failed to apply dispc config\n"); + goto put_device; + } + } + +put_device: + if (dssdev) + omap_dss_put_device(dssdev); + + return r ? r : size; +} + +static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color); +} + +static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + u32 color; + int r; + + if (sscanf(buf, "%d", &color) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.default_color = color; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static const char *trans_key_type_str[] = { + "gfx-destination", + "video-source", +}; + +static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr, + char *buf) +{ + enum omap_dss_trans_key_type key_type; + + key_type = mgr->info.trans_key_type; + BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str)); + + return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]); +} + +static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + enum omap_dss_trans_key_type key_type; + struct omap_overlay_manager_info info; + int r; + + for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST; + key_type < ARRAY_SIZE(trans_key_type_str); key_type++) { + if (sysfs_streq(buf, trans_key_type_str[key_type])) + break; + } + + if (key_type == ARRAY_SIZE(trans_key_type_str)) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_key_type = key_type; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key); +} + +static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + u32 key_value; + int r; + + if (sscanf(buf, "%d", &key_value) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_key = key_value; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled); +} + +static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + int enable; + int r; + + if (sscanf(buf, "%d", &enable) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_enabled = enable ? true : false; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_alpha_blending_enabled_show( + struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled); +} + +static ssize_t manager_alpha_blending_enabled_store( + struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + int enable; + int r; + + if (sscanf(buf, "%d", &enable) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.alpha_enabled = enable ? true : false; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +struct manager_attribute { + struct attribute attr; + ssize_t (*show)(struct omap_overlay_manager *, char *); + ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t); +}; + +#define MANAGER_ATTR(_name, _mode, _show, _store) \ + struct manager_attribute manager_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) + +static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL); +static MANAGER_ATTR(display, S_IRUGO|S_IWUSR, + manager_display_show, manager_display_store); +static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR, + manager_default_color_show, manager_default_color_store); +static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR, + manager_trans_key_type_show, manager_trans_key_type_store); +static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR, + manager_trans_key_value_show, manager_trans_key_value_store); +static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR, + manager_trans_key_enabled_show, + manager_trans_key_enabled_store); +static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR, + manager_alpha_blending_enabled_show, + manager_alpha_blending_enabled_store); + + +static struct attribute *manager_sysfs_attrs[] = { + &manager_attr_name.attr, + &manager_attr_display.attr, + &manager_attr_default_color.attr, + &manager_attr_trans_key_type.attr, + &manager_attr_trans_key_value.attr, + &manager_attr_trans_key_enabled.attr, + &manager_attr_alpha_blending_enabled.attr, + NULL +}; + +static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct omap_overlay_manager *manager; + struct manager_attribute *manager_attr; + + manager = container_of(kobj, struct omap_overlay_manager, kobj); + manager_attr = container_of(attr, struct manager_attribute, attr); + + if (!manager_attr->show) + return -ENOENT; + + return manager_attr->show(manager, buf); +} + +static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct omap_overlay_manager *manager; + struct manager_attribute *manager_attr; + + manager = container_of(kobj, struct omap_overlay_manager, kobj); + manager_attr = container_of(attr, struct manager_attribute, attr); + + if (!manager_attr->store) + return -ENOENT; + + return manager_attr->store(manager, buf, size); +} + +static struct sysfs_ops manager_sysfs_ops = { + .show = manager_attr_show, + .store = manager_attr_store, +}; + +static struct kobj_type manager_ktype = { + .sysfs_ops = &manager_sysfs_ops, + .default_attrs = manager_sysfs_attrs, +}; + +/* + * We have 4 levels of cache for the dispc settings. First two are in SW and + * the latter two in HW. + * + * +--------------------+ + * |overlay/manager_info| + * +--------------------+ + * v + * apply() + * v + * +--------------------+ + * | dss_cache | + * +--------------------+ + * v + * configure() + * v + * +--------------------+ + * | shadow registers | + * +--------------------+ + * v + * VFP or lcd/digit_enable + * v + * +--------------------+ + * | registers | + * +--------------------+ + */ + +struct overlay_cache_data { + /* If true, cache changed, but not written to shadow registers. Set + * in apply(), cleared when registers written. */ + bool dirty; + /* If true, shadow registers contain changed values not yet in real + * registers. Set when writing to shadow registers, cleared at + * VSYNC/EVSYNC */ + bool shadow_dirty; + + bool enabled; + + u32 paddr; + void __iomem *vaddr; + u16 screen_width; + u16 width; + u16 height; + enum omap_color_mode color_mode; + u8 rotation; + enum omap_dss_rotation_type rotation_type; + bool mirror; + + u16 pos_x; + u16 pos_y; + u16 out_width; /* if 0, out_width == width */ + u16 out_height; /* if 0, out_height == height */ + u8 global_alpha; + + enum omap_channel channel; + bool replication; + bool ilace; + + enum omap_burst_size burst_size; + u32 fifo_low; + u32 fifo_high; + + bool manual_update; +}; + +struct manager_cache_data { + /* If true, cache changed, but not written to shadow registers. Set + * in apply(), cleared when registers written. */ + bool dirty; + /* If true, shadow registers contain changed values not yet in real + * registers. Set when writing to shadow registers, cleared at + * VSYNC/EVSYNC */ + bool shadow_dirty; + + u32 default_color; + + enum omap_dss_trans_key_type trans_key_type; + u32 trans_key; + bool trans_enabled; + + bool alpha_enabled; + + bool manual_upd_display; + bool manual_update; + bool do_manual_update; + + /* manual update region */ + u16 x, y, w, h; +}; + +static struct { + spinlock_t lock; + struct overlay_cache_data overlay_cache[3]; + struct manager_cache_data manager_cache[2]; + + bool irq_enabled; +} dss_cache; + + + +static int omap_dss_set_device(struct omap_overlay_manager *mgr, + struct omap_dss_device *dssdev) +{ + int i; + int r; + + if (dssdev->manager) { + DSSERR("display '%s' already has a manager '%s'\n", + dssdev->name, dssdev->manager->name); + return -EINVAL; + } + + if ((mgr->supported_displays & dssdev->type) == 0) { + DSSERR("display '%s' does not support manager '%s'\n", + dssdev->name, mgr->name); + return -EINVAL; + } + + for (i = 0; i < mgr->num_overlays; i++) { + struct omap_overlay *ovl = mgr->overlays[i]; + + if (ovl->manager != mgr || !ovl->info.enabled) + continue; + + r = dss_check_overlay(ovl, dssdev); + if (r) + return r; + } + + dssdev->manager = mgr; + mgr->device = dssdev; + mgr->device_changed = true; + + return 0; +} + +static int omap_dss_unset_device(struct omap_overlay_manager *mgr) +{ + if (!mgr->device) { + DSSERR("failed to unset display, display not set.\n"); + return -EINVAL; + } + + mgr->device->manager = NULL; + mgr->device = NULL; + mgr->device_changed = true; + + return 0; +} + +static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr) +{ + unsigned long timeout = msecs_to_jiffies(500); + struct manager_cache_data *mc; + enum omap_channel channel; + u32 irq; + int r; + int i; + + if (!mgr->device) + return 0; + + if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) { + irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN; + channel = OMAP_DSS_CHANNEL_DIGIT; + } else { + if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { + enum omap_dss_update_mode mode; + mode = mgr->device->get_update_mode(mgr->device); + if (mode != OMAP_DSS_UPDATE_AUTO) + return 0; + + irq = DISPC_IRQ_FRAMEDONE; + } else { + irq = DISPC_IRQ_VSYNC; + } + channel = OMAP_DSS_CHANNEL_LCD; + } + + mc = &dss_cache.manager_cache[mgr->id]; + i = 0; + while (1) { + unsigned long flags; + bool shadow_dirty, dirty; + + spin_lock_irqsave(&dss_cache.lock, flags); + dirty = mc->dirty; + shadow_dirty = mc->shadow_dirty; + spin_unlock_irqrestore(&dss_cache.lock, flags); + + if (!dirty && !shadow_dirty) { + r = 0; + break; + } + + /* 4 iterations is the worst case: + * 1 - initial iteration, dirty = true (between VFP and VSYNC) + * 2 - first VSYNC, dirty = true + * 3 - dirty = false, shadow_dirty = true + * 4 - shadow_dirty = false */ + if (i++ == 3) { + DSSERR("mgr(%d)->wait_for_go() not finishing\n", + mgr->id); + r = 0; + break; + } + + r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); + if (r == -ERESTARTSYS) + break; + + if (r) { + DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id); + break; + } + } + + return r; +} + +int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl) +{ + unsigned long timeout = msecs_to_jiffies(500); + enum omap_channel channel; + struct overlay_cache_data *oc; + struct omap_dss_device *dssdev; + u32 irq; + int r; + int i; + + if (!ovl->manager || !ovl->manager->device) + return 0; + + dssdev = ovl->manager->device; + + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) { + irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN; + channel = OMAP_DSS_CHANNEL_DIGIT; + } else { + if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { + enum omap_dss_update_mode mode; + mode = dssdev->get_update_mode(dssdev); + if (mode != OMAP_DSS_UPDATE_AUTO) + return 0; + + irq = DISPC_IRQ_FRAMEDONE; + } else { + irq = DISPC_IRQ_VSYNC; + } + channel = OMAP_DSS_CHANNEL_LCD; + } + + oc = &dss_cache.overlay_cache[ovl->id]; + i = 0; + while (1) { + unsigned long flags; + bool shadow_dirty, dirty; + + spin_lock_irqsave(&dss_cache.lock, flags); + dirty = oc->dirty; + shadow_dirty = oc->shadow_dirty; + spin_unlock_irqrestore(&dss_cache.lock, flags); + + if (!dirty && !shadow_dirty) { + r = 0; + break; + } + + /* 4 iterations is the worst case: + * 1 - initial iteration, dirty = true (between VFP and VSYNC) + * 2 - first VSYNC, dirty = true + * 3 - dirty = false, shadow_dirty = true + * 4 - shadow_dirty = false */ + if (i++ == 3) { + DSSERR("ovl(%d)->wait_for_go() not finishing\n", + ovl->id); + r = 0; + break; + } + + r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); + if (r == -ERESTARTSYS) + break; + + if (r) { + DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id); + break; + } + } + + return r; +} + +static int overlay_enabled(struct omap_overlay *ovl) +{ + return ovl->info.enabled && ovl->manager && ovl->manager->device; +} + +/* Is rect1 a subset of rect2? */ +static bool rectangle_subset(int x1, int y1, int w1, int h1, + int x2, int y2, int w2, int h2) +{ + if (x1 < x2 || y1 < y2) + return false; + + if (x1 + w1 > x2 + w2) + return false; + + if (y1 + h1 > y2 + h2) + return false; + + return true; +} + +/* Do rect1 and rect2 overlap? */ +static bool rectangle_intersects(int x1, int y1, int w1, int h1, + int x2, int y2, int w2, int h2) +{ + if (x1 >= x2 + w2) + return false; + + if (x2 >= x1 + w1) + return false; + + if (y1 >= y2 + h2) + return false; + + if (y2 >= y1 + h1) + return false; + + return true; +} + +static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc) +{ + if (oc->out_width != 0 && oc->width != oc->out_width) + return true; + + if (oc->out_height != 0 && oc->height != oc->out_height) + return true; + + return false; +} + +static int configure_overlay(enum omap_plane plane) +{ + struct overlay_cache_data *c; + struct manager_cache_data *mc; + u16 outw, outh; + u16 x, y, w, h; + u32 paddr; + int r; + + DSSDBGF("%d", plane); + + c = &dss_cache.overlay_cache[plane]; + + if (!c->enabled) { + dispc_enable_plane(plane, 0); + return 0; + } + + mc = &dss_cache.manager_cache[c->channel]; + + x = c->pos_x; + y = c->pos_y; + w = c->width; + h = c->height; + outw = c->out_width == 0 ? c->width : c->out_width; + outh = c->out_height == 0 ? c->height : c->out_height; + paddr = c->paddr; + + if (c->manual_update && mc->do_manual_update) { + unsigned bpp; + /* If the overlay is outside the update region, disable it */ + if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h, + x, y, outw, outh)) { + dispc_enable_plane(plane, 0); + return 0; + } + + switch (c->color_mode) { + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_YUV2: + case OMAP_DSS_COLOR_UYVY: + bpp = 16; + break; + + case OMAP_DSS_COLOR_RGB24P: + bpp = 24; + break; + + case OMAP_DSS_COLOR_RGB24U: + case OMAP_DSS_COLOR_ARGB32: + case OMAP_DSS_COLOR_RGBA32: + case OMAP_DSS_COLOR_RGBX32: + bpp = 32; + break; + + default: + BUG(); + } + + if (dispc_is_overlay_scaled(c)) { + /* If the overlay is scaled, the update area has + * already been enlarged to cover the whole overlay. We + * only need to adjust x/y here */ + x = c->pos_x - mc->x; + y = c->pos_y - mc->y; + } else { + if (mc->x > c->pos_x) { + x = 0; + w -= (mc->x - c->pos_x); + paddr += (mc->x - c->pos_x) * bpp / 8; + } else { + x = c->pos_x - mc->x; + } + + if (mc->y > c->pos_y) { + y = 0; + h -= (mc->y - c->pos_y); + paddr += (mc->y - c->pos_y) * c->screen_width * + bpp / 8; + } else { + y = c->pos_y - mc->y; + } + + if (mc->w < (x+w)) + w -= (x+w) - (mc->w); + + if (mc->h < (y+h)) + h -= (y+h) - (mc->h); + + outw = w; + outh = h; + } + } + + r = dispc_setup_plane(plane, + paddr, + c->screen_width, + x, y, + w, h, + outw, outh, + c->color_mode, + c->ilace, + c->rotation_type, + c->rotation, + c->mirror, + c->global_alpha); + + if (r) { + /* this shouldn't happen */ + DSSERR("dispc_setup_plane failed for ovl %d\n", plane); + dispc_enable_plane(plane, 0); + return r; + } + + dispc_enable_replication(plane, c->replication); + + dispc_set_burst_size(plane, c->burst_size); + dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high); + + dispc_enable_plane(plane, 1); + + return 0; +} + +static void configure_manager(enum omap_channel channel) +{ + struct manager_cache_data *c; + + DSSDBGF("%d", channel); + + c = &dss_cache.manager_cache[channel]; + + dispc_set_trans_key(channel, c->trans_key_type, c->trans_key); + dispc_enable_trans_key(channel, c->trans_enabled); + dispc_enable_alpha_blending(channel, c->alpha_enabled); +} + +/* configure_dispc() tries to write values from cache to shadow registers. + * It writes only to those managers/overlays that are not busy. + * returns 0 if everything could be written to shadow registers. + * returns 1 if not everything could be written to shadow registers. */ +static int configure_dispc(void) +{ + struct overlay_cache_data *oc; + struct manager_cache_data *mc; + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); + int i; + int r; + bool mgr_busy[2]; + bool mgr_go[2]; + bool busy; + + r = 0; + busy = false; + + mgr_busy[0] = dispc_go_busy(0); + mgr_busy[1] = dispc_go_busy(1); + mgr_go[0] = false; + mgr_go[1] = false; + + /* Commit overlay settings */ + for (i = 0; i < num_ovls; ++i) { + oc = &dss_cache.overlay_cache[i]; + mc = &dss_cache.manager_cache[oc->channel]; + + if (!oc->dirty) + continue; + + if (oc->manual_update && !mc->do_manual_update) + continue; + + if (mgr_busy[oc->channel]) { + busy = true; + continue; + } + + r = configure_overlay(i); + if (r) + DSSERR("configure_overlay %d failed\n", i); + + oc->dirty = false; + oc->shadow_dirty = true; + mgr_go[oc->channel] = true; + } + + /* Commit manager settings */ + for (i = 0; i < num_mgrs; ++i) { + mc = &dss_cache.manager_cache[i]; + + if (!mc->dirty) + continue; + + if (mc->manual_update && !mc->do_manual_update) + continue; + + if (mgr_busy[i]) { + busy = true; + continue; + } + + configure_manager(i); + mc->dirty = false; + mc->shadow_dirty = true; + mgr_go[i] = true; + } + + /* set GO */ + for (i = 0; i < num_mgrs; ++i) { + mc = &dss_cache.manager_cache[i]; + + if (!mgr_go[i]) + continue; + + /* We don't need GO with manual update display. LCD iface will + * always be turned off after frame, and new settings will be + * taken in to use at next update */ + if (!mc->manual_upd_display) + dispc_go(i); + } + + if (busy) + r = 1; + else + r = 0; + + return r; +} + +/* Configure dispc for partial update. Return possibly modified update + * area */ +void dss_setup_partial_planes(struct omap_dss_device *dssdev, + u16 *xi, u16 *yi, u16 *wi, u16 *hi) +{ + struct overlay_cache_data *oc; + struct manager_cache_data *mc; + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); + struct omap_overlay_manager *mgr; + int i; + u16 x, y, w, h; + unsigned long flags; + + x = *xi; + y = *yi; + w = *wi; + h = *hi; + + DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n", + *xi, *yi, *wi, *hi); + + mgr = dssdev->manager; + + if (!mgr) { + DSSDBG("no manager\n"); + return; + } + + spin_lock_irqsave(&dss_cache.lock, flags); + + /* We need to show the whole overlay if it is scaled. So look for + * those, and make the update area larger if found. + * Also mark the overlay cache dirty */ + for (i = 0; i < num_ovls; ++i) { + unsigned x1, y1, x2, y2; + unsigned outw, outh; + + oc = &dss_cache.overlay_cache[i]; + + if (oc->channel != mgr->id) + continue; + + oc->dirty = true; + + if (!oc->enabled) + continue; + + if (!dispc_is_overlay_scaled(oc)) + continue; + + outw = oc->out_width == 0 ? oc->width : oc->out_width; + outh = oc->out_height == 0 ? oc->height : oc->out_height; + + /* is the overlay outside the update region? */ + if (!rectangle_intersects(x, y, w, h, + oc->pos_x, oc->pos_y, + outw, outh)) + continue; + + /* if the overlay totally inside the update region? */ + if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh, + x, y, w, h)) + continue; + + if (x > oc->pos_x) + x1 = oc->pos_x; + else + x1 = x; + + if (y > oc->pos_y) + y1 = oc->pos_y; + else + y1 = y; + + if ((x + w) < (oc->pos_x + outw)) + x2 = oc->pos_x + outw; + else + x2 = x + w; + + if ((y + h) < (oc->pos_y + outh)) + y2 = oc->pos_y + outh; + else + y2 = y + h; + + x = x1; + y = y1; + w = x2 - x1; + h = y2 - y1; + + DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n", + i, x, y, w, h); + } + + mc = &dss_cache.manager_cache[mgr->id]; + mc->do_manual_update = true; + mc->x = x; + mc->y = y; + mc->w = w; + mc->h = h; + + configure_dispc(); + + mc->do_manual_update = false; + + spin_unlock_irqrestore(&dss_cache.lock, flags); + + *xi = x; + *yi = y; + *wi = w; + *hi = h; +} + +void dss_start_update(struct omap_dss_device *dssdev) +{ + struct manager_cache_data *mc; + struct overlay_cache_data *oc; + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); + struct omap_overlay_manager *mgr; + int i; + + mgr = dssdev->manager; + + for (i = 0; i < num_ovls; ++i) { + oc = &dss_cache.overlay_cache[i]; + if (oc->channel != mgr->id) + continue; + + oc->shadow_dirty = false; + } + + for (i = 0; i < num_mgrs; ++i) { + mc = &dss_cache.manager_cache[i]; + if (mgr->id != i) + continue; + + mc->shadow_dirty = false; + } + + dispc_enable_lcd_out(1); +} + +static void dss_apply_irq_handler(void *data, u32 mask) +{ + struct manager_cache_data *mc; + struct overlay_cache_data *oc; + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); + int i, r; + bool mgr_busy[2]; + + mgr_busy[0] = dispc_go_busy(0); + mgr_busy[1] = dispc_go_busy(1); + + spin_lock(&dss_cache.lock); + + for (i = 0; i < num_ovls; ++i) { + oc = &dss_cache.overlay_cache[i]; + if (!mgr_busy[oc->channel]) + oc->shadow_dirty = false; + } + + for (i = 0; i < num_mgrs; ++i) { + mc = &dss_cache.manager_cache[i]; + if (!mgr_busy[i]) + mc->shadow_dirty = false; + } + + r = configure_dispc(); + if (r == 1) + goto end; + + /* re-read busy flags */ + mgr_busy[0] = dispc_go_busy(0); + mgr_busy[1] = dispc_go_busy(1); + + /* keep running as long as there are busy managers, so that + * we can collect overlay-applied information */ + for (i = 0; i < num_mgrs; ++i) { + if (mgr_busy[i]) + goto end; + } + + omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, + DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD | + DISPC_IRQ_EVSYNC_EVEN); + dss_cache.irq_enabled = false; + +end: + spin_unlock(&dss_cache.lock); +} + +static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr) +{ + struct overlay_cache_data *oc; + struct manager_cache_data *mc; + int i; + struct omap_overlay *ovl; + int num_planes_enabled = 0; + bool use_fifomerge; + unsigned long flags; + int r; + + DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name); + + spin_lock_irqsave(&dss_cache.lock, flags); + + /* Configure overlays */ + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_dss_device *dssdev; + + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + oc = &dss_cache.overlay_cache[ovl->id]; + + if (!overlay_enabled(ovl)) { + if (oc->enabled) { + oc->enabled = false; + oc->dirty = true; + } + continue; + } + + if (!ovl->info_dirty) { + if (oc->enabled) + ++num_planes_enabled; + continue; + } + + dssdev = ovl->manager->device; + + if (dss_check_overlay(ovl, dssdev)) { + if (oc->enabled) { + oc->enabled = false; + oc->dirty = true; + } + continue; + } + + ovl->info_dirty = false; + oc->dirty = true; + + oc->paddr = ovl->info.paddr; + oc->vaddr = ovl->info.vaddr; + oc->screen_width = ovl->info.screen_width; + oc->width = ovl->info.width; + oc->height = ovl->info.height; + oc->color_mode = ovl->info.color_mode; + oc->rotation = ovl->info.rotation; + oc->rotation_type = ovl->info.rotation_type; + oc->mirror = ovl->info.mirror; + oc->pos_x = ovl->info.pos_x; + oc->pos_y = ovl->info.pos_y; + oc->out_width = ovl->info.out_width; + oc->out_height = ovl->info.out_height; + oc->global_alpha = ovl->info.global_alpha; + + oc->replication = + dss_use_replication(dssdev, ovl->info.color_mode); + + oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC; + + oc->channel = ovl->manager->id; + + oc->enabled = true; + + oc->manual_update = + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE && + dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO; + + ++num_planes_enabled; + } + + /* Configure managers */ + list_for_each_entry(mgr, &manager_list, list) { + struct omap_dss_device *dssdev; + + if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC)) + continue; + + mc = &dss_cache.manager_cache[mgr->id]; + + if (mgr->device_changed) { + mgr->device_changed = false; + mgr->info_dirty = true; + } + + if (!mgr->info_dirty) + continue; + + if (!mgr->device) + continue; + + dssdev = mgr->device; + + mgr->info_dirty = false; + mc->dirty = true; + + mc->default_color = mgr->info.default_color; + mc->trans_key_type = mgr->info.trans_key_type; + mc->trans_key = mgr->info.trans_key; + mc->trans_enabled = mgr->info.trans_enabled; + mc->alpha_enabled = mgr->info.alpha_enabled; + + mc->manual_upd_display = + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; + + mc->manual_update = + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE && + dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO; + } + + /* XXX TODO: Try to get fifomerge working. The problem is that it + * affects both managers, not individually but at the same time. This + * means the change has to be well synchronized. I guess the proper way + * is to have a two step process for fifo merge: + * fifomerge enable: + * 1. disable other planes, leaving one plane enabled + * 2. wait until the planes are disabled on HW + * 3. config merged fifo thresholds, enable fifomerge + * fifomerge disable: + * 1. config unmerged fifo thresholds, disable fifomerge + * 2. wait until fifo changes are in HW + * 3. enable planes + */ + use_fifomerge = false; + + /* Configure overlay fifos */ + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_dss_device *dssdev; + u32 size; + + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + oc = &dss_cache.overlay_cache[ovl->id]; + + if (!oc->enabled) + continue; + + dssdev = ovl->manager->device; + + size = dispc_get_plane_fifo_size(ovl->id); + if (use_fifomerge) + size *= 3; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + case OMAP_DISPLAY_TYPE_DBI: + case OMAP_DISPLAY_TYPE_SDI: + case OMAP_DISPLAY_TYPE_VENC: + default_get_overlay_fifo_thresholds(ovl->id, size, + &oc->burst_size, &oc->fifo_low, + &oc->fifo_high); + break; +#ifdef CONFIG_OMAP2_DSS_DSI + case OMAP_DISPLAY_TYPE_DSI: + dsi_get_overlay_fifo_thresholds(ovl->id, size, + &oc->burst_size, &oc->fifo_low, + &oc->fifo_high); + break; +#endif + default: + BUG(); + } + } + + r = 0; + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + if (!dss_cache.irq_enabled) { + r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, + DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD | + DISPC_IRQ_EVSYNC_EVEN); + dss_cache.irq_enabled = true; + } + configure_dispc(); + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + spin_unlock_irqrestore(&dss_cache.lock, flags); + + return r; +} + +static int dss_check_manager(struct omap_overlay_manager *mgr) +{ + /* OMAP supports only graphics source transparency color key and alpha + * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */ + + if (mgr->info.alpha_enabled && mgr->info.trans_enabled && + mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) + return -EINVAL; + + return 0; +} + +static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr, + struct omap_overlay_manager_info *info) +{ + int r; + struct omap_overlay_manager_info old_info; + + old_info = mgr->info; + mgr->info = *info; + + r = dss_check_manager(mgr); + if (r) { + mgr->info = old_info; + return r; + } + + mgr->info_dirty = true; + + return 0; +} + +static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr, + struct omap_overlay_manager_info *info) +{ + *info = mgr->info; +} + +static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager) +{ + ++num_managers; + list_add_tail(&manager->list, &manager_list); +} + +int dss_init_overlay_managers(struct platform_device *pdev) +{ + int i, r; + + spin_lock_init(&dss_cache.lock); + + INIT_LIST_HEAD(&manager_list); + + num_managers = 0; + + for (i = 0; i < 2; ++i) { + struct omap_overlay_manager *mgr; + mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); + + BUG_ON(mgr == NULL); + + switch (i) { + case 0: + mgr->name = "lcd"; + mgr->id = OMAP_DSS_CHANNEL_LCD; + mgr->supported_displays = + OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | + OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI; + break; + case 1: + mgr->name = "tv"; + mgr->id = OMAP_DSS_CHANNEL_DIGIT; + mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC; + break; + } + + mgr->set_device = &omap_dss_set_device; + mgr->unset_device = &omap_dss_unset_device; + mgr->apply = &omap_dss_mgr_apply; + mgr->set_manager_info = &omap_dss_mgr_set_info; + mgr->get_manager_info = &omap_dss_mgr_get_info; + mgr->wait_for_go = &dss_mgr_wait_for_go; + + mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC; + + dss_overlay_setup_dispc_manager(mgr); + + omap_dss_add_overlay_manager(mgr); + + r = kobject_init_and_add(&mgr->kobj, &manager_ktype, + &pdev->dev.kobj, "manager%d", i); + + if (r) { + DSSERR("failed to create sysfs file\n"); + continue; + } + } + +#ifdef L4_EXAMPLE + { + int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr) + { + DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name); + + return 0; + } + + struct omap_overlay_manager *mgr; + mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); + + BUG_ON(mgr == NULL); + + mgr->name = "l4"; + mgr->supported_displays = + OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI; + + mgr->set_device = &omap_dss_set_device; + mgr->unset_device = &omap_dss_unset_device; + mgr->apply = &omap_dss_mgr_apply_l4; + mgr->set_manager_info = &omap_dss_mgr_set_info; + mgr->get_manager_info = &omap_dss_mgr_get_info; + + dss_overlay_setup_l4_manager(mgr); + + omap_dss_add_overlay_manager(mgr); + + r = kobject_init_and_add(&mgr->kobj, &manager_ktype, + &pdev->dev.kobj, "managerl4"); + + if (r) + DSSERR("failed to create sysfs file\n"); + } +#endif + + return 0; +} + +void dss_uninit_overlay_managers(struct platform_device *pdev) +{ + struct omap_overlay_manager *mgr; + + while (!list_empty(&manager_list)) { + mgr = list_first_entry(&manager_list, + struct omap_overlay_manager, list); + list_del(&mgr->list); + kobject_del(&mgr->kobj); + kobject_put(&mgr->kobj); + kfree(mgr); + } + + num_managers = 0; +} + +int omap_dss_get_num_overlay_managers(void) +{ + return num_managers; +} +EXPORT_SYMBOL(omap_dss_get_num_overlay_managers); + +struct omap_overlay_manager *omap_dss_get_overlay_manager(int num) +{ + int i = 0; + struct omap_overlay_manager *mgr; + + list_for_each_entry(mgr, &manager_list, list) { + if (i++ == num) + return mgr; + } + + return NULL; +} +EXPORT_SYMBOL(omap_dss_get_overlay_manager); + diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c new file mode 100644 index 0000000..b7f9a73 --- /dev/null +++ b/drivers/video/omap2/dss/overlay.c @@ -0,0 +1,680 @@ +/* + * linux/drivers/video/omap2/dss/overlay.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "OVERLAY" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/sysfs.h> +#include <linux/kobject.h> +#include <linux/platform_device.h> +#include <linux/delay.h> + +#include <plat/display.h> +#include <plat/cpu.h> + +#include "dss.h" + +static int num_overlays; +static struct list_head overlay_list; + +static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name); +} + +static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", + ovl->manager ? ovl->manager->name : "<none>"); +} + +static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf, + size_t size) +{ + int i, r; + struct omap_overlay_manager *mgr = NULL; + struct omap_overlay_manager *old_mgr; + int len = size; + + if (buf[size-1] == '\n') + --len; + + if (len > 0) { + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { + mgr = omap_dss_get_overlay_manager(i); + + if (strncmp(buf, mgr->name, len) == 0) + break; + + mgr = NULL; + } + } + + if (len > 0 && mgr == NULL) + return -EINVAL; + + if (mgr) + DSSDBG("manager %s found\n", mgr->name); + + if (mgr == ovl->manager) + return size; + + old_mgr = ovl->manager; + + /* detach old manager */ + if (old_mgr) { + r = ovl->unset_manager(ovl); + if (r) { + DSSERR("detach failed\n"); + return r; + } + + r = old_mgr->apply(old_mgr); + if (r) + return r; + } + + if (mgr) { + r = ovl->set_manager(ovl, mgr); + if (r) { + DSSERR("Failed to attach overlay\n"); + return r; + } + + r = mgr->apply(mgr); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.width, ovl->info.height); +} + +static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width); +} + +static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.pos_x, ovl->info.pos_y); +} + +static ssize_t overlay_position_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + char *last; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.pos_x = simple_strtoul(buf, &last, 10); + ++last; + if (last - buf >= size) + return -EINVAL; + + info.pos_y = simple_strtoul(last, &last, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.out_width, ovl->info.out_height); +} + +static ssize_t overlay_output_size_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + char *last; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.out_width = simple_strtoul(buf, &last, 10); + ++last; + if (last - buf >= size) + return -EINVAL; + + info.out_height = simple_strtoul(last, &last, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled); +} + +static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf, + size_t size) +{ + int r; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.enabled = simple_strtoul(buf, NULL, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", + ovl->info.global_alpha); +} + +static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + /* Video1 plane does not support global alpha + * to always make it 255 completely opaque + */ + if (ovl->id == OMAP_DSS_VIDEO1) + info.global_alpha = 255; + else + info.global_alpha = simple_strtoul(buf, NULL, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +struct overlay_attribute { + struct attribute attr; + ssize_t (*show)(struct omap_overlay *, char *); + ssize_t (*store)(struct omap_overlay *, const char *, size_t); +}; + +#define OVERLAY_ATTR(_name, _mode, _show, _store) \ + struct overlay_attribute overlay_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) + +static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL); +static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR, + overlay_manager_show, overlay_manager_store); +static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL); +static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL); +static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR, + overlay_position_show, overlay_position_store); +static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR, + overlay_output_size_show, overlay_output_size_store); +static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR, + overlay_enabled_show, overlay_enabled_store); +static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR, + overlay_global_alpha_show, overlay_global_alpha_store); + +static struct attribute *overlay_sysfs_attrs[] = { + &overlay_attr_name.attr, + &overlay_attr_manager.attr, + &overlay_attr_input_size.attr, + &overlay_attr_screen_width.attr, + &overlay_attr_position.attr, + &overlay_attr_output_size.attr, + &overlay_attr_enabled.attr, + &overlay_attr_global_alpha.attr, + NULL +}; + +static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct omap_overlay *overlay; + struct overlay_attribute *overlay_attr; + + overlay = container_of(kobj, struct omap_overlay, kobj); + overlay_attr = container_of(attr, struct overlay_attribute, attr); + + if (!overlay_attr->show) + return -ENOENT; + + return overlay_attr->show(overlay, buf); +} + +static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct omap_overlay *overlay; + struct overlay_attribute *overlay_attr; + + overlay = container_of(kobj, struct omap_overlay, kobj); + overlay_attr = container_of(attr, struct overlay_attribute, attr); + + if (!overlay_attr->store) + return -ENOENT; + + return overlay_attr->store(overlay, buf, size); +} + +static struct sysfs_ops overlay_sysfs_ops = { + .show = overlay_attr_show, + .store = overlay_attr_store, +}; + +static struct kobj_type overlay_ktype = { + .sysfs_ops = &overlay_sysfs_ops, + .default_attrs = overlay_sysfs_attrs, +}; + +/* Check if overlay parameters are compatible with display */ +int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev) +{ + struct omap_overlay_info *info; + u16 outw, outh; + u16 dw, dh; + + if (!dssdev) + return 0; + + if (!ovl->info.enabled) + return 0; + + info = &ovl->info; + + if (info->paddr == 0) { + DSSDBG("check_overlay failed: paddr 0\n"); + return -EINVAL; + } + + dssdev->get_resolution(dssdev, &dw, &dh); + + DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n", + ovl->id, + info->pos_x, info->pos_y, + info->width, info->height, + info->out_width, info->out_height, + dw, dh); + + if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { + outw = info->width; + outh = info->height; + } else { + if (info->out_width == 0) + outw = info->width; + else + outw = info->out_width; + + if (info->out_height == 0) + outh = info->height; + else + outh = info->out_height; + } + + if (dw < info->pos_x + outw) { + DSSDBG("check_overlay failed 1: %d < %d + %d\n", + dw, info->pos_x, outw); + return -EINVAL; + } + + if (dh < info->pos_y + outh) { + DSSDBG("check_overlay failed 2: %d < %d + %d\n", + dh, info->pos_y, outh); + return -EINVAL; + } + + if ((ovl->supported_modes & info->color_mode) == 0) { + DSSERR("overlay doesn't support mode %d\n", info->color_mode); + return -EINVAL; + } + + return 0; +} + +static int dss_ovl_set_overlay_info(struct omap_overlay *ovl, + struct omap_overlay_info *info) +{ + int r; + struct omap_overlay_info old_info; + + old_info = ovl->info; + ovl->info = *info; + + if (ovl->manager) { + r = dss_check_overlay(ovl, ovl->manager->device); + if (r) { + ovl->info = old_info; + return r; + } + } + + ovl->info_dirty = true; + + return 0; +} + +static void dss_ovl_get_overlay_info(struct omap_overlay *ovl, + struct omap_overlay_info *info) +{ + *info = ovl->info; +} + +static int dss_ovl_wait_for_go(struct omap_overlay *ovl) +{ + return dss_mgr_wait_for_go_ovl(ovl); +} + +static int omap_dss_set_manager(struct omap_overlay *ovl, + struct omap_overlay_manager *mgr) +{ + if (!mgr) + return -EINVAL; + + if (ovl->manager) { + DSSERR("overlay '%s' already has a manager '%s'\n", + ovl->name, ovl->manager->name); + return -EINVAL; + } + + if (ovl->info.enabled) { + DSSERR("overlay has to be disabled to change the manager\n"); + return -EINVAL; + } + + ovl->manager = mgr; + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + /* XXX: on manual update display, in auto update mode, a bug happens + * here. When an overlay is first enabled on LCD, then it's disabled, + * and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT + * errors. Waiting before changing the channel_out fixes it. I'm + * guessing that the overlay is still somehow being used for the LCD, + * but I don't understand how or why. */ + msleep(40); + dispc_set_channel_out(ovl->id, mgr->id); + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + return 0; +} + +static int omap_dss_unset_manager(struct omap_overlay *ovl) +{ + int r; + + if (!ovl->manager) { + DSSERR("failed to detach overlay: manager not set\n"); + return -EINVAL; + } + + if (ovl->info.enabled) { + DSSERR("overlay has to be disabled to unset the manager\n"); + return -EINVAL; + } + + r = ovl->wait_for_go(ovl); + if (r) + return r; + + ovl->manager = NULL; + + return 0; +} + +int omap_dss_get_num_overlays(void) +{ + return num_overlays; +} +EXPORT_SYMBOL(omap_dss_get_num_overlays); + +struct omap_overlay *omap_dss_get_overlay(int num) +{ + int i = 0; + struct omap_overlay *ovl; + + list_for_each_entry(ovl, &overlay_list, list) { + if (i++ == num) + return ovl; + } + + return NULL; +} +EXPORT_SYMBOL(omap_dss_get_overlay); + +static void omap_dss_add_overlay(struct omap_overlay *overlay) +{ + ++num_overlays; + list_add_tail(&overlay->list, &overlay_list); +} + +static struct omap_overlay *dispc_overlays[3]; + +void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr) +{ + mgr->num_overlays = 3; + mgr->overlays = dispc_overlays; +} + +#ifdef L4_EXAMPLE +static struct omap_overlay *l4_overlays[1]; +void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr) +{ + mgr->num_overlays = 1; + mgr->overlays = l4_overlays; +} +#endif + +void dss_init_overlays(struct platform_device *pdev) +{ + int i, r; + + INIT_LIST_HEAD(&overlay_list); + + num_overlays = 0; + + for (i = 0; i < 3; ++i) { + struct omap_overlay *ovl; + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); + + BUG_ON(ovl == NULL); + + switch (i) { + case 0: + ovl->name = "gfx"; + ovl->id = OMAP_DSS_GFX; + ovl->supported_modes = cpu_is_omap34xx() ? + OMAP_DSS_COLOR_GFX_OMAP3 : + OMAP_DSS_COLOR_GFX_OMAP2; + ovl->caps = OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + case 1: + ovl->name = "vid1"; + ovl->id = OMAP_DSS_VIDEO1; + ovl->supported_modes = cpu_is_omap34xx() ? + OMAP_DSS_COLOR_VID1_OMAP3 : + OMAP_DSS_COLOR_VID_OMAP2; + ovl->caps = OMAP_DSS_OVL_CAP_SCALE | + OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + case 2: + ovl->name = "vid2"; + ovl->id = OMAP_DSS_VIDEO2; + ovl->supported_modes = cpu_is_omap34xx() ? + OMAP_DSS_COLOR_VID2_OMAP3 : + OMAP_DSS_COLOR_VID_OMAP2; + ovl->caps = OMAP_DSS_OVL_CAP_SCALE | + OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + } + + ovl->set_manager = &omap_dss_set_manager; + ovl->unset_manager = &omap_dss_unset_manager; + ovl->set_overlay_info = &dss_ovl_set_overlay_info; + ovl->get_overlay_info = &dss_ovl_get_overlay_info; + ovl->wait_for_go = &dss_ovl_wait_for_go; + + omap_dss_add_overlay(ovl); + + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, + &pdev->dev.kobj, "overlay%d", i); + + if (r) { + DSSERR("failed to create sysfs file\n"); + continue; + } + + dispc_overlays[i] = ovl; + } + +#ifdef L4_EXAMPLE + { + struct omap_overlay *ovl; + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); + + BUG_ON(ovl == NULL); + + ovl->name = "l4"; + ovl->supported_modes = OMAP_DSS_COLOR_RGB24U; + + ovl->set_manager = &omap_dss_set_manager; + ovl->unset_manager = &omap_dss_unset_manager; + ovl->set_overlay_info = &dss_ovl_set_overlay_info; + ovl->get_overlay_info = &dss_ovl_get_overlay_info; + + omap_dss_add_overlay(ovl); + + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, + &pdev->dev.kobj, "overlayl4"); + + if (r) + DSSERR("failed to create sysfs file\n"); + + l4_overlays[0] = ovl; + } +#endif +} + +/* connect overlays to the new device, if not already connected. if force + * selected, connect always. */ +void dss_recheck_connections(struct omap_dss_device *dssdev, bool force) +{ + int i; + struct omap_overlay_manager *lcd_mgr; + struct omap_overlay_manager *tv_mgr; + struct omap_overlay_manager *mgr = NULL; + + lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD); + tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV); + + if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) { + if (!lcd_mgr->device || force) { + if (lcd_mgr->device) + lcd_mgr->unset_device(lcd_mgr); + lcd_mgr->set_device(lcd_mgr, dssdev); + mgr = lcd_mgr; + } + } + + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) { + if (!tv_mgr->device || force) { + if (tv_mgr->device) + tv_mgr->unset_device(tv_mgr); + tv_mgr->set_device(tv_mgr, dssdev); + mgr = tv_mgr; + } + } + + if (mgr) { + for (i = 0; i < 3; i++) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + if (!ovl->manager || force) { + if (ovl->manager) + omap_dss_unset_manager(ovl); + omap_dss_set_manager(ovl, mgr); + } + } + } +} + +void dss_uninit_overlays(struct platform_device *pdev) +{ + struct omap_overlay *ovl; + + while (!list_empty(&overlay_list)) { + ovl = list_first_entry(&overlay_list, + struct omap_overlay, list); + list_del(&ovl->list); + kobject_del(&ovl->kobj); + kobject_put(&ovl->kobj); + kfree(ovl); + } + + num_overlays = 0; +} + -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 09/19] OMAP: DSS2: DISPC 2009-11-09 11:45 ` [PATCH 08/19] OMAP: DSS2: Add more core files Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 10/19] OMAP: DSS2: DPI driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel This file implements DISPC (display controller) block of the OMAP DSS. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/dispc.c | 3087 +++++++++++++++++++++++++++++++++++++++ 1 files changed, 3087 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/dispc.c diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c new file mode 100644 index 0000000..adba0da --- /dev/null +++ b/drivers/video/omap2/dss/dispc.c @@ -0,0 +1,3087 @@ +/* + * linux/drivers/video/omap2/dss/dispc.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DISPC" + +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/vmalloc.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/seq_file.h> +#include <linux/delay.h> +#include <linux/workqueue.h> + +#include <plat/sram.h> +#include <plat/clock.h> + +#include <plat/display.h> + +#include "dss.h" + +/* DISPC */ +#define DISPC_BASE 0x48050400 + +#define DISPC_SZ_REGS SZ_1K + +struct dispc_reg { u16 idx; }; + +#define DISPC_REG(idx) ((const struct dispc_reg) { idx }) + +/* DISPC common */ +#define DISPC_REVISION DISPC_REG(0x0000) +#define DISPC_SYSCONFIG DISPC_REG(0x0010) +#define DISPC_SYSSTATUS DISPC_REG(0x0014) +#define DISPC_IRQSTATUS DISPC_REG(0x0018) +#define DISPC_IRQENABLE DISPC_REG(0x001C) +#define DISPC_CONTROL DISPC_REG(0x0040) +#define DISPC_CONFIG DISPC_REG(0x0044) +#define DISPC_CAPABLE DISPC_REG(0x0048) +#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C) +#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050) +#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054) +#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058) +#define DISPC_LINE_STATUS DISPC_REG(0x005C) +#define DISPC_LINE_NUMBER DISPC_REG(0x0060) +#define DISPC_TIMING_H DISPC_REG(0x0064) +#define DISPC_TIMING_V DISPC_REG(0x0068) +#define DISPC_POL_FREQ DISPC_REG(0x006C) +#define DISPC_DIVISOR DISPC_REG(0x0070) +#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074) +#define DISPC_SIZE_DIG DISPC_REG(0x0078) +#define DISPC_SIZE_LCD DISPC_REG(0x007C) + +/* DISPC GFX plane */ +#define DISPC_GFX_BA0 DISPC_REG(0x0080) +#define DISPC_GFX_BA1 DISPC_REG(0x0084) +#define DISPC_GFX_POSITION DISPC_REG(0x0088) +#define DISPC_GFX_SIZE DISPC_REG(0x008C) +#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0) +#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4) +#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8) +#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC) +#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0) +#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4) +#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8) + +#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4) +#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8) +#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC) + +#define DISPC_CPR_COEF_R DISPC_REG(0x0220) +#define DISPC_CPR_COEF_G DISPC_REG(0x0224) +#define DISPC_CPR_COEF_B DISPC_REG(0x0228) + +#define DISPC_GFX_PRELOAD DISPC_REG(0x022C) + +/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */ +#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx) + +#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000) +#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004) +#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008) +#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C) +#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010) +#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014) +#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018) +#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C) +#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020) +#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024) +#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028) +#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C) +#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030) + +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ +#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8) +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ +#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8) +/* coef index i = {0, 1, 2, 3, 4} */ +#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4) +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ +#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4) + +#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04) + + +#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \ + DISPC_IRQ_OCP_ERR | \ + DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ + DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ + DISPC_IRQ_SYNC_LOST | \ + DISPC_IRQ_SYNC_LOST_DIGIT) + +#define DISPC_MAX_NR_ISRS 8 + +struct omap_dispc_isr_data { + omap_dispc_isr_t isr; + void *arg; + u32 mask; +}; + +#define REG_GET(idx, start, end) \ + FLD_GET(dispc_read_reg(idx), start, end) + +#define REG_FLD_MOD(idx, val, start, end) \ + dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end)) + +static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES, + DISPC_VID_ATTRIBUTES(0), + DISPC_VID_ATTRIBUTES(1) }; + +static struct { + void __iomem *base; + + u32 fifo_size[3]; + + spinlock_t irq_lock; + u32 irq_error_mask; + struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; + u32 error_irqs; + struct work_struct error_work; + + u32 ctx[DISPC_SZ_REGS / sizeof(u32)]; +} dispc; + +static void _omap_dispc_set_irqs(void); + +static inline void dispc_write_reg(const struct dispc_reg idx, u32 val) +{ + __raw_writel(val, dispc.base + idx.idx); +} + +static inline u32 dispc_read_reg(const struct dispc_reg idx) +{ + return __raw_readl(dispc.base + idx.idx); +} + +#define SR(reg) \ + dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg) +#define RR(reg) \ + dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)]) + +void dispc_save_context(void) +{ + if (cpu_is_omap24xx()) + return; + + SR(SYSCONFIG); + SR(IRQENABLE); + SR(CONTROL); + SR(CONFIG); + SR(DEFAULT_COLOR0); + SR(DEFAULT_COLOR1); + SR(TRANS_COLOR0); + SR(TRANS_COLOR1); + SR(LINE_NUMBER); + SR(TIMING_H); + SR(TIMING_V); + SR(POL_FREQ); + SR(DIVISOR); + SR(GLOBAL_ALPHA); + SR(SIZE_DIG); + SR(SIZE_LCD); + + SR(GFX_BA0); + SR(GFX_BA1); + SR(GFX_POSITION); + SR(GFX_SIZE); + SR(GFX_ATTRIBUTES); + SR(GFX_FIFO_THRESHOLD); + SR(GFX_ROW_INC); + SR(GFX_PIXEL_INC); + SR(GFX_WINDOW_SKIP); + SR(GFX_TABLE_BA); + + SR(DATA_CYCLE1); + SR(DATA_CYCLE2); + SR(DATA_CYCLE3); + + SR(CPR_COEF_R); + SR(CPR_COEF_G); + SR(CPR_COEF_B); + + SR(GFX_PRELOAD); + + /* VID1 */ + SR(VID_BA0(0)); + SR(VID_BA1(0)); + SR(VID_POSITION(0)); + SR(VID_SIZE(0)); + SR(VID_ATTRIBUTES(0)); + SR(VID_FIFO_THRESHOLD(0)); + SR(VID_ROW_INC(0)); + SR(VID_PIXEL_INC(0)); + SR(VID_FIR(0)); + SR(VID_PICTURE_SIZE(0)); + SR(VID_ACCU0(0)); + SR(VID_ACCU1(0)); + + SR(VID_FIR_COEF_H(0, 0)); + SR(VID_FIR_COEF_H(0, 1)); + SR(VID_FIR_COEF_H(0, 2)); + SR(VID_FIR_COEF_H(0, 3)); + SR(VID_FIR_COEF_H(0, 4)); + SR(VID_FIR_COEF_H(0, 5)); + SR(VID_FIR_COEF_H(0, 6)); + SR(VID_FIR_COEF_H(0, 7)); + + SR(VID_FIR_COEF_HV(0, 0)); + SR(VID_FIR_COEF_HV(0, 1)); + SR(VID_FIR_COEF_HV(0, 2)); + SR(VID_FIR_COEF_HV(0, 3)); + SR(VID_FIR_COEF_HV(0, 4)); + SR(VID_FIR_COEF_HV(0, 5)); + SR(VID_FIR_COEF_HV(0, 6)); + SR(VID_FIR_COEF_HV(0, 7)); + + SR(VID_CONV_COEF(0, 0)); + SR(VID_CONV_COEF(0, 1)); + SR(VID_CONV_COEF(0, 2)); + SR(VID_CONV_COEF(0, 3)); + SR(VID_CONV_COEF(0, 4)); + + SR(VID_FIR_COEF_V(0, 0)); + SR(VID_FIR_COEF_V(0, 1)); + SR(VID_FIR_COEF_V(0, 2)); + SR(VID_FIR_COEF_V(0, 3)); + SR(VID_FIR_COEF_V(0, 4)); + SR(VID_FIR_COEF_V(0, 5)); + SR(VID_FIR_COEF_V(0, 6)); + SR(VID_FIR_COEF_V(0, 7)); + + SR(VID_PRELOAD(0)); + + /* VID2 */ + SR(VID_BA0(1)); + SR(VID_BA1(1)); + SR(VID_POSITION(1)); + SR(VID_SIZE(1)); + SR(VID_ATTRIBUTES(1)); + SR(VID_FIFO_THRESHOLD(1)); + SR(VID_ROW_INC(1)); + SR(VID_PIXEL_INC(1)); + SR(VID_FIR(1)); + SR(VID_PICTURE_SIZE(1)); + SR(VID_ACCU0(1)); + SR(VID_ACCU1(1)); + + SR(VID_FIR_COEF_H(1, 0)); + SR(VID_FIR_COEF_H(1, 1)); + SR(VID_FIR_COEF_H(1, 2)); + SR(VID_FIR_COEF_H(1, 3)); + SR(VID_FIR_COEF_H(1, 4)); + SR(VID_FIR_COEF_H(1, 5)); + SR(VID_FIR_COEF_H(1, 6)); + SR(VID_FIR_COEF_H(1, 7)); + + SR(VID_FIR_COEF_HV(1, 0)); + SR(VID_FIR_COEF_HV(1, 1)); + SR(VID_FIR_COEF_HV(1, 2)); + SR(VID_FIR_COEF_HV(1, 3)); + SR(VID_FIR_COEF_HV(1, 4)); + SR(VID_FIR_COEF_HV(1, 5)); + SR(VID_FIR_COEF_HV(1, 6)); + SR(VID_FIR_COEF_HV(1, 7)); + + SR(VID_CONV_COEF(1, 0)); + SR(VID_CONV_COEF(1, 1)); + SR(VID_CONV_COEF(1, 2)); + SR(VID_CONV_COEF(1, 3)); + SR(VID_CONV_COEF(1, 4)); + + SR(VID_FIR_COEF_V(1, 0)); + SR(VID_FIR_COEF_V(1, 1)); + SR(VID_FIR_COEF_V(1, 2)); + SR(VID_FIR_COEF_V(1, 3)); + SR(VID_FIR_COEF_V(1, 4)); + SR(VID_FIR_COEF_V(1, 5)); + SR(VID_FIR_COEF_V(1, 6)); + SR(VID_FIR_COEF_V(1, 7)); + + SR(VID_PRELOAD(1)); +} + +void dispc_restore_context(void) +{ + RR(SYSCONFIG); + RR(IRQENABLE); + /*RR(CONTROL);*/ + RR(CONFIG); + RR(DEFAULT_COLOR0); + RR(DEFAULT_COLOR1); + RR(TRANS_COLOR0); + RR(TRANS_COLOR1); + RR(LINE_NUMBER); + RR(TIMING_H); + RR(TIMING_V); + RR(POL_FREQ); + RR(DIVISOR); + RR(GLOBAL_ALPHA); + RR(SIZE_DIG); + RR(SIZE_LCD); + + RR(GFX_BA0); + RR(GFX_BA1); + RR(GFX_POSITION); + RR(GFX_SIZE); + RR(GFX_ATTRIBUTES); + RR(GFX_FIFO_THRESHOLD); + RR(GFX_ROW_INC); + RR(GFX_PIXEL_INC); + RR(GFX_WINDOW_SKIP); + RR(GFX_TABLE_BA); + + RR(DATA_CYCLE1); + RR(DATA_CYCLE2); + RR(DATA_CYCLE3); + + RR(CPR_COEF_R); + RR(CPR_COEF_G); + RR(CPR_COEF_B); + + RR(GFX_PRELOAD); + + /* VID1 */ + RR(VID_BA0(0)); + RR(VID_BA1(0)); + RR(VID_POSITION(0)); + RR(VID_SIZE(0)); + RR(VID_ATTRIBUTES(0)); + RR(VID_FIFO_THRESHOLD(0)); + RR(VID_ROW_INC(0)); + RR(VID_PIXEL_INC(0)); + RR(VID_FIR(0)); + RR(VID_PICTURE_SIZE(0)); + RR(VID_ACCU0(0)); + RR(VID_ACCU1(0)); + + RR(VID_FIR_COEF_H(0, 0)); + RR(VID_FIR_COEF_H(0, 1)); + RR(VID_FIR_COEF_H(0, 2)); + RR(VID_FIR_COEF_H(0, 3)); + RR(VID_FIR_COEF_H(0, 4)); + RR(VID_FIR_COEF_H(0, 5)); + RR(VID_FIR_COEF_H(0, 6)); + RR(VID_FIR_COEF_H(0, 7)); + + RR(VID_FIR_COEF_HV(0, 0)); + RR(VID_FIR_COEF_HV(0, 1)); + RR(VID_FIR_COEF_HV(0, 2)); + RR(VID_FIR_COEF_HV(0, 3)); + RR(VID_FIR_COEF_HV(0, 4)); + RR(VID_FIR_COEF_HV(0, 5)); + RR(VID_FIR_COEF_HV(0, 6)); + RR(VID_FIR_COEF_HV(0, 7)); + + RR(VID_CONV_COEF(0, 0)); + RR(VID_CONV_COEF(0, 1)); + RR(VID_CONV_COEF(0, 2)); + RR(VID_CONV_COEF(0, 3)); + RR(VID_CONV_COEF(0, 4)); + + RR(VID_FIR_COEF_V(0, 0)); + RR(VID_FIR_COEF_V(0, 1)); + RR(VID_FIR_COEF_V(0, 2)); + RR(VID_FIR_COEF_V(0, 3)); + RR(VID_FIR_COEF_V(0, 4)); + RR(VID_FIR_COEF_V(0, 5)); + RR(VID_FIR_COEF_V(0, 6)); + RR(VID_FIR_COEF_V(0, 7)); + + RR(VID_PRELOAD(0)); + + /* VID2 */ + RR(VID_BA0(1)); + RR(VID_BA1(1)); + RR(VID_POSITION(1)); + RR(VID_SIZE(1)); + RR(VID_ATTRIBUTES(1)); + RR(VID_FIFO_THRESHOLD(1)); + RR(VID_ROW_INC(1)); + RR(VID_PIXEL_INC(1)); + RR(VID_FIR(1)); + RR(VID_PICTURE_SIZE(1)); + RR(VID_ACCU0(1)); + RR(VID_ACCU1(1)); + + RR(VID_FIR_COEF_H(1, 0)); + RR(VID_FIR_COEF_H(1, 1)); + RR(VID_FIR_COEF_H(1, 2)); + RR(VID_FIR_COEF_H(1, 3)); + RR(VID_FIR_COEF_H(1, 4)); + RR(VID_FIR_COEF_H(1, 5)); + RR(VID_FIR_COEF_H(1, 6)); + RR(VID_FIR_COEF_H(1, 7)); + + RR(VID_FIR_COEF_HV(1, 0)); + RR(VID_FIR_COEF_HV(1, 1)); + RR(VID_FIR_COEF_HV(1, 2)); + RR(VID_FIR_COEF_HV(1, 3)); + RR(VID_FIR_COEF_HV(1, 4)); + RR(VID_FIR_COEF_HV(1, 5)); + RR(VID_FIR_COEF_HV(1, 6)); + RR(VID_FIR_COEF_HV(1, 7)); + + RR(VID_CONV_COEF(1, 0)); + RR(VID_CONV_COEF(1, 1)); + RR(VID_CONV_COEF(1, 2)); + RR(VID_CONV_COEF(1, 3)); + RR(VID_CONV_COEF(1, 4)); + + RR(VID_FIR_COEF_V(1, 0)); + RR(VID_FIR_COEF_V(1, 1)); + RR(VID_FIR_COEF_V(1, 2)); + RR(VID_FIR_COEF_V(1, 3)); + RR(VID_FIR_COEF_V(1, 4)); + RR(VID_FIR_COEF_V(1, 5)); + RR(VID_FIR_COEF_V(1, 6)); + RR(VID_FIR_COEF_V(1, 7)); + + RR(VID_PRELOAD(1)); + + /* enable last, because LCD & DIGIT enable are here */ + RR(CONTROL); +} + +#undef SR +#undef RR + +static inline void enable_clocks(bool enable) +{ + if (enable) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + else + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +} + +bool dispc_go_busy(enum omap_channel channel) +{ + int bit; + + if (channel == OMAP_DSS_CHANNEL_LCD) + bit = 5; /* GOLCD */ + else + bit = 6; /* GODIGIT */ + + return REG_GET(DISPC_CONTROL, bit, bit) == 1; +} + +void dispc_go(enum omap_channel channel) +{ + int bit; + + enable_clocks(1); + + if (channel == OMAP_DSS_CHANNEL_LCD) + bit = 0; /* LCDENABLE */ + else + bit = 1; /* DIGITALENABLE */ + + /* if the channel is not enabled, we don't need GO */ + if (REG_GET(DISPC_CONTROL, bit, bit) == 0) + goto end; + + if (channel == OMAP_DSS_CHANNEL_LCD) + bit = 5; /* GOLCD */ + else + bit = 6; /* GODIGIT */ + + if (REG_GET(DISPC_CONTROL, bit, bit) == 1) { + DSSERR("GO bit not down for channel %d\n", channel); + goto end; + } + + DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT"); + + REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit); +end: + enable_clocks(0); +} + +static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value) +{ + BUG_ON(plane == OMAP_DSS_GFX); + + dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value); +} + +static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value) +{ + BUG_ON(plane == OMAP_DSS_GFX); + + dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value); +} + +static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value) +{ + BUG_ON(plane == OMAP_DSS_GFX); + + dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value); +} + +static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, + int vscaleup, int five_taps) +{ + /* Coefficients for horizontal up-sampling */ + static const u32 coef_hup[8] = { + 0x00800000, + 0x0D7CF800, + 0x1E70F5FF, + 0x335FF5FE, + 0xF74949F7, + 0xF55F33FB, + 0xF5701EFE, + 0xF87C0DFF, + }; + + /* Coefficients for horizontal down-sampling */ + static const u32 coef_hdown[8] = { + 0x24382400, + 0x28371FFE, + 0x2C361BFB, + 0x303516F9, + 0x11343311, + 0x1635300C, + 0x1B362C08, + 0x1F372804, + }; + + /* Coefficients for horizontal and vertical up-sampling */ + static const u32 coef_hvup[2][8] = { + { + 0x00800000, + 0x037B02FF, + 0x0C6F05FE, + 0x205907FB, + 0x00404000, + 0x075920FE, + 0x056F0CFF, + 0x027B0300, + }, + { + 0x00800000, + 0x0D7CF8FF, + 0x1E70F5FE, + 0x335FF5FB, + 0xF7404000, + 0xF55F33FE, + 0xF5701EFF, + 0xF87C0D00, + }, + }; + + /* Coefficients for horizontal and vertical down-sampling */ + static const u32 coef_hvdown[2][8] = { + { + 0x24382400, + 0x28391F04, + 0x2D381B08, + 0x3237170C, + 0x123737F7, + 0x173732F9, + 0x1B382DFB, + 0x1F3928FE, + }, + { + 0x24382400, + 0x28371F04, + 0x2C361B08, + 0x3035160C, + 0x113433F7, + 0x163530F9, + 0x1B362CFB, + 0x1F3728FE, + }, + }; + + /* Coefficients for vertical up-sampling */ + static const u32 coef_vup[8] = { + 0x00000000, + 0x0000FF00, + 0x0000FEFF, + 0x0000FBFE, + 0x000000F7, + 0x0000FEFB, + 0x0000FFFE, + 0x000000FF, + }; + + + /* Coefficients for vertical down-sampling */ + static const u32 coef_vdown[8] = { + 0x00000000, + 0x000004FE, + 0x000008FB, + 0x00000CF9, + 0x0000F711, + 0x0000F90C, + 0x0000FB08, + 0x0000FE04, + }; + + const u32 *h_coef; + const u32 *hv_coef; + const u32 *hv_coef_mod; + const u32 *v_coef; + int i; + + if (hscaleup) + h_coef = coef_hup; + else + h_coef = coef_hdown; + + if (vscaleup) { + hv_coef = coef_hvup[five_taps]; + v_coef = coef_vup; + + if (hscaleup) + hv_coef_mod = NULL; + else + hv_coef_mod = coef_hvdown[five_taps]; + } else { + hv_coef = coef_hvdown[five_taps]; + v_coef = coef_vdown; + + if (hscaleup) + hv_coef_mod = coef_hvup[five_taps]; + else + hv_coef_mod = NULL; + } + + for (i = 0; i < 8; i++) { + u32 h, hv; + + h = h_coef[i]; + + hv = hv_coef[i]; + + if (hv_coef_mod) { + hv &= 0xffffff00; + hv |= (hv_coef_mod[i] & 0xff); + } + + _dispc_write_firh_reg(plane, i, h); + _dispc_write_firhv_reg(plane, i, hv); + } + + if (!five_taps) + return; + + for (i = 0; i < 8; i++) { + u32 v; + v = v_coef[i]; + _dispc_write_firv_reg(plane, i, v); + } +} + +static void _dispc_setup_color_conv_coef(void) +{ + const struct color_conv_coef { + int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; + int full_range; + } ctbl_bt601_5 = { + 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, + }; + + const struct color_conv_coef *ct; + +#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0)) + + ct = &ctbl_bt601_5; + + dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry)); + dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb)); + dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr)); + dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by)); + dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb)); + + dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry)); + dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb)); + dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr)); + dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by)); + dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb)); + +#undef CVAL + + REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11); + REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11); +} + + +static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr) +{ + const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0, + DISPC_VID_BA0(0), + DISPC_VID_BA0(1) }; + + dispc_write_reg(ba0_reg[plane], paddr); +} + +static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr) +{ + const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1, + DISPC_VID_BA1(0), + DISPC_VID_BA1(1) }; + + dispc_write_reg(ba1_reg[plane], paddr); +} + +static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y) +{ + const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION, + DISPC_VID_POSITION(0), + DISPC_VID_POSITION(1) }; + + u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0); + dispc_write_reg(pos_reg[plane], val); +} + +static void _dispc_set_pic_size(enum omap_plane plane, int width, int height) +{ + const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE, + DISPC_VID_PICTURE_SIZE(0), + DISPC_VID_PICTURE_SIZE(1) }; + u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); + dispc_write_reg(siz_reg[plane], val); +} + +static void _dispc_set_vid_size(enum omap_plane plane, int width, int height) +{ + u32 val; + const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0), + DISPC_VID_SIZE(1) }; + + BUG_ON(plane == OMAP_DSS_GFX); + + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); + dispc_write_reg(vsi_reg[plane-1], val); +} + +static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha) +{ + + BUG_ON(plane == OMAP_DSS_VIDEO1); + + if (cpu_is_omap24xx()) + return; + + if (plane == OMAP_DSS_GFX) + REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0); + else if (plane == OMAP_DSS_VIDEO2) + REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16); +} + +static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc) +{ + const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC, + DISPC_VID_PIXEL_INC(0), + DISPC_VID_PIXEL_INC(1) }; + + dispc_write_reg(ri_reg[plane], inc); +} + +static void _dispc_set_row_inc(enum omap_plane plane, s32 inc) +{ + const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC, + DISPC_VID_ROW_INC(0), + DISPC_VID_ROW_INC(1) }; + + dispc_write_reg(ri_reg[plane], inc); +} + +static void _dispc_set_color_mode(enum omap_plane plane, + enum omap_color_mode color_mode) +{ + u32 m = 0; + + switch (color_mode) { + case OMAP_DSS_COLOR_CLUT1: + m = 0x0; break; + case OMAP_DSS_COLOR_CLUT2: + m = 0x1; break; + case OMAP_DSS_COLOR_CLUT4: + m = 0x2; break; + case OMAP_DSS_COLOR_CLUT8: + m = 0x3; break; + case OMAP_DSS_COLOR_RGB12U: + m = 0x4; break; + case OMAP_DSS_COLOR_ARGB16: + m = 0x5; break; + case OMAP_DSS_COLOR_RGB16: + m = 0x6; break; + case OMAP_DSS_COLOR_RGB24U: + m = 0x8; break; + case OMAP_DSS_COLOR_RGB24P: + m = 0x9; break; + case OMAP_DSS_COLOR_YUV2: + m = 0xa; break; + case OMAP_DSS_COLOR_UYVY: + m = 0xb; break; + case OMAP_DSS_COLOR_ARGB32: + m = 0xc; break; + case OMAP_DSS_COLOR_RGBA32: + m = 0xd; break; + case OMAP_DSS_COLOR_RGBX32: + m = 0xe; break; + default: + BUG(); break; + } + + REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1); +} + +static void _dispc_set_channel_out(enum omap_plane plane, + enum omap_channel channel) +{ + int shift; + u32 val; + + switch (plane) { + case OMAP_DSS_GFX: + shift = 8; + break; + case OMAP_DSS_VIDEO1: + case OMAP_DSS_VIDEO2: + shift = 16; + break; + default: + BUG(); + return; + } + + val = dispc_read_reg(dispc_reg_att[plane]); + val = FLD_MOD(val, channel, shift, shift); + dispc_write_reg(dispc_reg_att[plane], val); +} + +void dispc_set_burst_size(enum omap_plane plane, + enum omap_burst_size burst_size) +{ + int shift; + u32 val; + + enable_clocks(1); + + switch (plane) { + case OMAP_DSS_GFX: + shift = 6; + break; + case OMAP_DSS_VIDEO1: + case OMAP_DSS_VIDEO2: + shift = 14; + break; + default: + BUG(); + return; + } + + val = dispc_read_reg(dispc_reg_att[plane]); + val = FLD_MOD(val, burst_size, shift+1, shift); + dispc_write_reg(dispc_reg_att[plane], val); + + enable_clocks(0); +} + +static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) +{ + u32 val; + + BUG_ON(plane == OMAP_DSS_GFX); + + val = dispc_read_reg(dispc_reg_att[plane]); + val = FLD_MOD(val, enable, 9, 9); + dispc_write_reg(dispc_reg_att[plane], val); +} + +void dispc_enable_replication(enum omap_plane plane, bool enable) +{ + int bit; + + if (plane == OMAP_DSS_GFX) + bit = 5; + else + bit = 10; + + enable_clocks(1); + REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit); + enable_clocks(0); +} + +void dispc_set_lcd_size(u16 width, u16 height) +{ + u32 val; + BUG_ON((width > (1 << 11)) || (height > (1 << 11))); + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); + enable_clocks(1); + dispc_write_reg(DISPC_SIZE_LCD, val); + enable_clocks(0); +} + +void dispc_set_digit_size(u16 width, u16 height) +{ + u32 val; + BUG_ON((width > (1 << 11)) || (height > (1 << 11))); + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); + enable_clocks(1); + dispc_write_reg(DISPC_SIZE_DIG, val); + enable_clocks(0); +} + +static void dispc_read_plane_fifo_sizes(void) +{ + const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, + DISPC_VID_FIFO_SIZE_STATUS(0), + DISPC_VID_FIFO_SIZE_STATUS(1) }; + u32 size; + int plane; + + enable_clocks(1); + + for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) { + if (cpu_is_omap24xx()) + size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0); + else if (cpu_is_omap34xx()) + size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0); + else + BUG(); + + dispc.fifo_size[plane] = size; + } + + enable_clocks(0); +} + +u32 dispc_get_plane_fifo_size(enum omap_plane plane) +{ + return dispc.fifo_size[plane]; +} + +void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high) +{ + const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, + DISPC_VID_FIFO_THRESHOLD(0), + DISPC_VID_FIFO_THRESHOLD(1) }; + enable_clocks(1); + + DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n", + plane, + REG_GET(ftrs_reg[plane], 11, 0), + REG_GET(ftrs_reg[plane], 27, 16), + low, high); + + if (cpu_is_omap24xx()) + dispc_write_reg(ftrs_reg[plane], + FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0)); + else + dispc_write_reg(ftrs_reg[plane], + FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0)); + + enable_clocks(0); +} + +void dispc_enable_fifomerge(bool enable) +{ + enable_clocks(1); + + DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled"); + REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14); + + enable_clocks(0); +} + +static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc) +{ + u32 val; + const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0), + DISPC_VID_FIR(1) }; + + BUG_ON(plane == OMAP_DSS_GFX); + + if (cpu_is_omap24xx()) + val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0); + else + val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0); + dispc_write_reg(fir_reg[plane-1], val); +} + +static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu) +{ + u32 val; + const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0), + DISPC_VID_ACCU0(1) }; + + BUG_ON(plane == OMAP_DSS_GFX); + + val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); + dispc_write_reg(ac0_reg[plane-1], val); +} + +static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu) +{ + u32 val; + const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0), + DISPC_VID_ACCU1(1) }; + + BUG_ON(plane == OMAP_DSS_GFX); + + val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); + dispc_write_reg(ac1_reg[plane-1], val); +} + + +static void _dispc_set_scaling(enum omap_plane plane, + u16 orig_width, u16 orig_height, + u16 out_width, u16 out_height, + bool ilace, bool five_taps, + bool fieldmode) +{ + int fir_hinc; + int fir_vinc; + int hscaleup, vscaleup; + int accu0 = 0; + int accu1 = 0; + u32 l; + + BUG_ON(plane == OMAP_DSS_GFX); + + hscaleup = orig_width <= out_width; + vscaleup = orig_height <= out_height; + + _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps); + + if (!orig_width || orig_width == out_width) + fir_hinc = 0; + else + fir_hinc = 1024 * orig_width / out_width; + + if (!orig_height || orig_height == out_height) + fir_vinc = 0; + else + fir_vinc = 1024 * orig_height / out_height; + + _dispc_set_fir(plane, fir_hinc, fir_vinc); + + l = dispc_read_reg(dispc_reg_att[plane]); + l &= ~((0x0f << 5) | (0x3 << 21)); + + l |= fir_hinc ? (1 << 5) : 0; + l |= fir_vinc ? (1 << 6) : 0; + + l |= hscaleup ? 0 : (1 << 7); + l |= vscaleup ? 0 : (1 << 8); + + l |= five_taps ? (1 << 21) : 0; + l |= five_taps ? (1 << 22) : 0; + + dispc_write_reg(dispc_reg_att[plane], l); + + /* + * field 0 = even field = bottom field + * field 1 = odd field = top field + */ + if (ilace && !fieldmode) { + accu1 = 0; + accu0 = (fir_vinc / 2) & 0x3ff; + if (accu0 >= 1024/2) { + accu1 = 1024/2; + accu0 -= accu1; + } + } + + _dispc_set_vid_accu0(plane, 0, accu0); + _dispc_set_vid_accu1(plane, 0, accu1); +} + +static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation, + bool mirroring, enum omap_color_mode color_mode) +{ + if (color_mode == OMAP_DSS_COLOR_YUV2 || + color_mode == OMAP_DSS_COLOR_UYVY) { + int vidrot = 0; + + if (mirroring) { + switch (rotation) { + case OMAP_DSS_ROT_0: + vidrot = 2; + break; + case OMAP_DSS_ROT_90: + vidrot = 1; + break; + case OMAP_DSS_ROT_180: + vidrot = 0; + break; + case OMAP_DSS_ROT_270: + vidrot = 3; + break; + } + } else { + switch (rotation) { + case OMAP_DSS_ROT_0: + vidrot = 0; + break; + case OMAP_DSS_ROT_90: + vidrot = 1; + break; + case OMAP_DSS_ROT_180: + vidrot = 2; + break; + case OMAP_DSS_ROT_270: + vidrot = 3; + break; + } + } + + REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12); + + if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270) + REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18); + else + REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18); + } else { + REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12); + REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18); + } +} + +static int color_mode_to_bpp(enum omap_color_mode color_mode) +{ + switch (color_mode) { + case OMAP_DSS_COLOR_CLUT1: + return 1; + case OMAP_DSS_COLOR_CLUT2: + return 2; + case OMAP_DSS_COLOR_CLUT4: + return 4; + case OMAP_DSS_COLOR_CLUT8: + return 8; + case OMAP_DSS_COLOR_RGB12U: + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_YUV2: + case OMAP_DSS_COLOR_UYVY: + return 16; + case OMAP_DSS_COLOR_RGB24P: + return 24; + case OMAP_DSS_COLOR_RGB24U: + case OMAP_DSS_COLOR_ARGB32: + case OMAP_DSS_COLOR_RGBA32: + case OMAP_DSS_COLOR_RGBX32: + return 32; + default: + BUG(); + } +} + +static s32 pixinc(int pixels, u8 ps) +{ + if (pixels == 1) + return 1; + else if (pixels > 1) + return 1 + (pixels - 1) * ps; + else if (pixels < 0) + return 1 - (-pixels + 1) * ps; + else + BUG(); +} + +static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, + u16 screen_width, + u16 width, u16 height, + enum omap_color_mode color_mode, bool fieldmode, + unsigned int field_offset, + unsigned *offset0, unsigned *offset1, + s32 *row_inc, s32 *pix_inc) +{ + u8 ps; + + /* FIXME CLUT formats */ + switch (color_mode) { + case OMAP_DSS_COLOR_CLUT1: + case OMAP_DSS_COLOR_CLUT2: + case OMAP_DSS_COLOR_CLUT4: + case OMAP_DSS_COLOR_CLUT8: + BUG(); + return; + case OMAP_DSS_COLOR_YUV2: + case OMAP_DSS_COLOR_UYVY: + ps = 4; + break; + default: + ps = color_mode_to_bpp(color_mode) / 8; + break; + } + + DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, + width, height); + + /* + * field 0 = even field = bottom field + * field 1 = odd field = top field + */ + switch (rotation + mirror * 4) { + case OMAP_DSS_ROT_0: + case OMAP_DSS_ROT_180: + /* + * If the pixel format is YUV or UYVY divide the width + * of the image by 2 for 0 and 180 degree rotation. + */ + if (color_mode == OMAP_DSS_COLOR_YUV2 || + color_mode == OMAP_DSS_COLOR_UYVY) + width = width >> 1; + case OMAP_DSS_ROT_90: + case OMAP_DSS_ROT_270: + *offset1 = 0; + if (field_offset) + *offset0 = field_offset * screen_width * ps; + else + *offset0 = 0; + + *row_inc = pixinc(1 + (screen_width - width) + + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(1, ps); + break; + + case OMAP_DSS_ROT_0 + 4: + case OMAP_DSS_ROT_180 + 4: + /* If the pixel format is YUV or UYVY divide the width + * of the image by 2 for 0 degree and 180 degree + */ + if (color_mode == OMAP_DSS_COLOR_YUV2 || + color_mode == OMAP_DSS_COLOR_UYVY) + width = width >> 1; + case OMAP_DSS_ROT_90 + 4: + case OMAP_DSS_ROT_270 + 4: + *offset1 = 0; + if (field_offset) + *offset0 = field_offset * screen_width * ps; + else + *offset0 = 0; + *row_inc = pixinc(1 - (screen_width + width) - + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(1, ps); + break; + + default: + BUG(); + } +} + +static void calc_dma_rotation_offset(u8 rotation, bool mirror, + u16 screen_width, + u16 width, u16 height, + enum omap_color_mode color_mode, bool fieldmode, + unsigned int field_offset, + unsigned *offset0, unsigned *offset1, + s32 *row_inc, s32 *pix_inc) +{ + u8 ps; + u16 fbw, fbh; + + /* FIXME CLUT formats */ + switch (color_mode) { + case OMAP_DSS_COLOR_CLUT1: + case OMAP_DSS_COLOR_CLUT2: + case OMAP_DSS_COLOR_CLUT4: + case OMAP_DSS_COLOR_CLUT8: + BUG(); + return; + default: + ps = color_mode_to_bpp(color_mode) / 8; + break; + } + + DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, + width, height); + + /* width & height are overlay sizes, convert to fb sizes */ + + if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) { + fbw = width; + fbh = height; + } else { + fbw = height; + fbh = width; + } + + /* + * field 0 = even field = bottom field + * field 1 = odd field = top field + */ + switch (rotation + mirror * 4) { + case OMAP_DSS_ROT_0: + *offset1 = 0; + if (field_offset) + *offset0 = *offset1 + field_offset * screen_width * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(1 + (screen_width - fbw) + + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(1, ps); + break; + case OMAP_DSS_ROT_90: + *offset1 = screen_width * (fbh - 1) * ps; + if (field_offset) + *offset0 = *offset1 + field_offset * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(screen_width * (fbh - 1) + 1 + + (fieldmode ? 1 : 0), ps); + *pix_inc = pixinc(-screen_width, ps); + break; + case OMAP_DSS_ROT_180: + *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; + if (field_offset) + *offset0 = *offset1 - field_offset * screen_width * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(-1 - + (screen_width - fbw) - + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(-1, ps); + break; + case OMAP_DSS_ROT_270: + *offset1 = (fbw - 1) * ps; + if (field_offset) + *offset0 = *offset1 - field_offset * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(-screen_width * (fbh - 1) - 1 - + (fieldmode ? 1 : 0), ps); + *pix_inc = pixinc(screen_width, ps); + break; + + /* mirroring */ + case OMAP_DSS_ROT_0 + 4: + *offset1 = (fbw - 1) * ps; + if (field_offset) + *offset0 = *offset1 + field_offset * screen_width * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(screen_width * 2 - 1 + + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(-1, ps); + break; + + case OMAP_DSS_ROT_90 + 4: + *offset1 = 0; + if (field_offset) + *offset0 = *offset1 + field_offset * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(-screen_width * (fbh - 1) + 1 + + (fieldmode ? 1 : 0), + ps); + *pix_inc = pixinc(screen_width, ps); + break; + + case OMAP_DSS_ROT_180 + 4: + *offset1 = screen_width * (fbh - 1) * ps; + if (field_offset) + *offset0 = *offset1 - field_offset * screen_width * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(1 - screen_width * 2 - + (fieldmode ? screen_width : 0), + ps); + *pix_inc = pixinc(1, ps); + break; + + case OMAP_DSS_ROT_270 + 4: + *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; + if (field_offset) + *offset0 = *offset1 - field_offset * ps; + else + *offset0 = *offset1; + *row_inc = pixinc(screen_width * (fbh - 1) - 1 - + (fieldmode ? 1 : 0), + ps); + *pix_inc = pixinc(-screen_width, ps); + break; + + default: + BUG(); + } +} + +static unsigned long calc_fclk_five_taps(u16 width, u16 height, + u16 out_width, u16 out_height, enum omap_color_mode color_mode) +{ + u32 fclk = 0; + /* FIXME venc pclk? */ + u64 tmp, pclk = dispc_pclk_rate(); + + if (height > out_height) { + /* FIXME get real display PPL */ + unsigned int ppl = 800; + + tmp = pclk * height * out_width; + do_div(tmp, 2 * out_height * ppl); + fclk = tmp; + + if (height > 2 * out_height && ppl != out_width) { + tmp = pclk * (height - 2 * out_height) * out_width; + do_div(tmp, 2 * out_height * (ppl - out_width)); + fclk = max(fclk, (u32) tmp); + } + } + + if (width > out_width) { + tmp = pclk * width; + do_div(tmp, out_width); + fclk = max(fclk, (u32) tmp); + + if (color_mode == OMAP_DSS_COLOR_RGB24U) + fclk <<= 1; + } + + return fclk; +} + +static unsigned long calc_fclk(u16 width, u16 height, + u16 out_width, u16 out_height) +{ + unsigned int hf, vf; + + /* + * FIXME how to determine the 'A' factor + * for the no downscaling case ? + */ + + if (width > 3 * out_width) + hf = 4; + else if (width > 2 * out_width) + hf = 3; + else if (width > out_width) + hf = 2; + else + hf = 1; + + if (height > out_height) + vf = 2; + else + vf = 1; + + /* FIXME venc pclk? */ + return dispc_pclk_rate() * vf * hf; +} + +void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out) +{ + enable_clocks(1); + _dispc_set_channel_out(plane, channel_out); + enable_clocks(0); +} + +static int _dispc_setup_plane(enum omap_plane plane, + u32 paddr, u16 screen_width, + u16 pos_x, u16 pos_y, + u16 width, u16 height, + u16 out_width, u16 out_height, + enum omap_color_mode color_mode, + bool ilace, + enum omap_dss_rotation_type rotation_type, + u8 rotation, int mirror, + u8 global_alpha) +{ + const int maxdownscale = cpu_is_omap34xx() ? 4 : 2; + bool five_taps = 0; + bool fieldmode = 0; + int cconv = 0; + unsigned offset0, offset1; + s32 row_inc; + s32 pix_inc; + u16 frame_height = height; + unsigned int field_offset = 0; + + if (paddr == 0) + return -EINVAL; + + if (ilace && height == out_height) + fieldmode = 1; + + if (ilace) { + if (fieldmode) + height /= 2; + pos_y /= 2; + out_height /= 2; + + DSSDBG("adjusting for ilace: height %d, pos_y %d, " + "out_height %d\n", + height, pos_y, out_height); + } + + if (plane == OMAP_DSS_GFX) { + if (width != out_width || height != out_height) + return -EINVAL; + + switch (color_mode) { + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_ARGB32: + case OMAP_DSS_COLOR_RGBA32: + case OMAP_DSS_COLOR_RGBX32: + if (cpu_is_omap24xx()) + return -EINVAL; + /* fall through */ + case OMAP_DSS_COLOR_RGB12U: + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_RGB24P: + case OMAP_DSS_COLOR_RGB24U: + break; + + default: + return -EINVAL; + } + } else { + /* video plane */ + + unsigned long fclk = 0; + + if (out_width < width / maxdownscale || + out_width > width * 8) + return -EINVAL; + + if (out_height < height / maxdownscale || + out_height > height * 8) + return -EINVAL; + + switch (color_mode) { + case OMAP_DSS_COLOR_RGBX32: + case OMAP_DSS_COLOR_RGB12U: + if (cpu_is_omap24xx()) + return -EINVAL; + /* fall through */ + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_RGB24P: + case OMAP_DSS_COLOR_RGB24U: + break; + + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_ARGB32: + case OMAP_DSS_COLOR_RGBA32: + if (cpu_is_omap24xx()) + return -EINVAL; + if (plane == OMAP_DSS_VIDEO1) + return -EINVAL; + break; + + case OMAP_DSS_COLOR_YUV2: + case OMAP_DSS_COLOR_UYVY: + cconv = 1; + break; + + default: + return -EINVAL; + } + + /* Must use 5-tap filter? */ + five_taps = height > out_height * 2; + + if (!five_taps) { + fclk = calc_fclk(width, height, + out_width, out_height); + + /* Try 5-tap filter if 3-tap fclk is too high */ + if (cpu_is_omap34xx() && height > out_height && + fclk > dispc_fclk_rate()) + five_taps = true; + } + + if (width > (2048 >> five_taps)) { + DSSERR("failed to set up scaling, fclk too low\n"); + return -EINVAL; + } + + if (five_taps) + fclk = calc_fclk_five_taps(width, height, + out_width, out_height, color_mode); + + DSSDBG("required fclk rate = %lu Hz\n", fclk); + DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate()); + + if (fclk > dispc_fclk_rate()) { + DSSERR("failed to set up scaling, " + "required fclk rate = %lu Hz, " + "current fclk rate = %lu Hz\n", + fclk, dispc_fclk_rate()); + return -EINVAL; + } + } + + if (ilace && !fieldmode) { + /* + * when downscaling the bottom field may have to start several + * source lines below the top field. Unfortunately ACCUI + * registers will only hold the fractional part of the offset + * so the integer part must be added to the base address of the + * bottom field. + */ + if (!height || height == out_height) + field_offset = 0; + else + field_offset = height / out_height / 2; + } + + /* Fields are independent but interleaved in memory. */ + if (fieldmode) + field_offset = 1; + + if (rotation_type == OMAP_DSS_ROT_DMA) + calc_dma_rotation_offset(rotation, mirror, + screen_width, width, frame_height, color_mode, + fieldmode, field_offset, + &offset0, &offset1, &row_inc, &pix_inc); + else + calc_vrfb_rotation_offset(rotation, mirror, + screen_width, width, frame_height, color_mode, + fieldmode, field_offset, + &offset0, &offset1, &row_inc, &pix_inc); + + DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n", + offset0, offset1, row_inc, pix_inc); + + _dispc_set_color_mode(plane, color_mode); + + _dispc_set_plane_ba0(plane, paddr + offset0); + _dispc_set_plane_ba1(plane, paddr + offset1); + + _dispc_set_row_inc(plane, row_inc); + _dispc_set_pix_inc(plane, pix_inc); + + DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height, + out_width, out_height); + + _dispc_set_plane_pos(plane, pos_x, pos_y); + + _dispc_set_pic_size(plane, width, height); + + if (plane != OMAP_DSS_GFX) { + _dispc_set_scaling(plane, width, height, + out_width, out_height, + ilace, five_taps, fieldmode); + _dispc_set_vid_size(plane, out_width, out_height); + _dispc_set_vid_color_conv(plane, cconv); + } + + _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); + + if (plane != OMAP_DSS_VIDEO1) + _dispc_setup_global_alpha(plane, global_alpha); + + return 0; +} + +static void _dispc_enable_plane(enum omap_plane plane, bool enable) +{ + REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0); +} + +static void dispc_disable_isr(void *data, u32 mask) +{ + struct completion *compl = data; + complete(compl); +} + +static void _enable_lcd_out(bool enable) +{ + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0); +} + +void dispc_enable_lcd_out(bool enable) +{ + struct completion frame_done_completion; + bool is_on; + int r; + + enable_clocks(1); + + /* When we disable LCD output, we need to wait until frame is done. + * Otherwise the DSS is still working, and turning off the clocks + * prevents DSS from going to OFF mode */ + is_on = REG_GET(DISPC_CONTROL, 0, 0); + + if (!enable && is_on) { + init_completion(&frame_done_completion); + + r = omap_dispc_register_isr(dispc_disable_isr, + &frame_done_completion, + DISPC_IRQ_FRAMEDONE); + + if (r) + DSSERR("failed to register FRAMEDONE isr\n"); + } + + _enable_lcd_out(enable); + + if (!enable && is_on) { + if (!wait_for_completion_timeout(&frame_done_completion, + msecs_to_jiffies(100))) + DSSERR("timeout waiting for FRAME DONE\n"); + + r = omap_dispc_unregister_isr(dispc_disable_isr, + &frame_done_completion, + DISPC_IRQ_FRAMEDONE); + + if (r) + DSSERR("failed to unregister FRAMEDONE isr\n"); + } + + enable_clocks(0); +} + +static void _enable_digit_out(bool enable) +{ + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1); +} + +void dispc_enable_digit_out(bool enable) +{ + struct completion frame_done_completion; + int r; + + enable_clocks(1); + + if (REG_GET(DISPC_CONTROL, 1, 1) == enable) { + enable_clocks(0); + return; + } + + if (enable) { + unsigned long flags; + /* When we enable digit output, we'll get an extra digit + * sync lost interrupt, that we need to ignore */ + spin_lock_irqsave(&dispc.irq_lock, flags); + dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; + _omap_dispc_set_irqs(); + spin_unlock_irqrestore(&dispc.irq_lock, flags); + } + + /* When we disable digit output, we need to wait until fields are done. + * Otherwise the DSS is still working, and turning off the clocks + * prevents DSS from going to OFF mode. And when enabling, we need to + * wait for the extra sync losts */ + init_completion(&frame_done_completion); + + r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion, + DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); + if (r) + DSSERR("failed to register EVSYNC isr\n"); + + _enable_digit_out(enable); + + /* XXX I understand from TRM that we should only wait for the + * current field to complete. But it seems we have to wait + * for both fields */ + if (!wait_for_completion_timeout(&frame_done_completion, + msecs_to_jiffies(100))) + DSSERR("timeout waiting for EVSYNC\n"); + + if (!wait_for_completion_timeout(&frame_done_completion, + msecs_to_jiffies(100))) + DSSERR("timeout waiting for EVSYNC\n"); + + r = omap_dispc_unregister_isr(dispc_disable_isr, + &frame_done_completion, + DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); + if (r) + DSSERR("failed to unregister EVSYNC isr\n"); + + if (enable) { + unsigned long flags; + spin_lock_irqsave(&dispc.irq_lock, flags); + dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; + dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT); + _omap_dispc_set_irqs(); + spin_unlock_irqrestore(&dispc.irq_lock, flags); + } + + enable_clocks(0); +} + +void dispc_lcd_enable_signal_polarity(bool act_high) +{ + enable_clocks(1); + REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29); + enable_clocks(0); +} + +void dispc_lcd_enable_signal(bool enable) +{ + enable_clocks(1); + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28); + enable_clocks(0); +} + +void dispc_pck_free_enable(bool enable) +{ + enable_clocks(1); + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27); + enable_clocks(0); +} + +void dispc_enable_fifohandcheck(bool enable) +{ + enable_clocks(1); + REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16); + enable_clocks(0); +} + + +void dispc_set_lcd_display_type(enum omap_lcd_display_type type) +{ + int mode; + + switch (type) { + case OMAP_DSS_LCD_DISPLAY_STN: + mode = 0; + break; + + case OMAP_DSS_LCD_DISPLAY_TFT: + mode = 1; + break; + + default: + BUG(); + return; + } + + enable_clocks(1); + REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3); + enable_clocks(0); +} + +void dispc_set_loadmode(enum omap_dss_load_mode mode) +{ + enable_clocks(1); + REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1); + enable_clocks(0); +} + + +void dispc_set_default_color(enum omap_channel channel, u32 color) +{ + const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, + DISPC_DEFAULT_COLOR1 }; + + enable_clocks(1); + dispc_write_reg(def_reg[channel], color); + enable_clocks(0); +} + +u32 dispc_get_default_color(enum omap_channel channel) +{ + const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, + DISPC_DEFAULT_COLOR1 }; + u32 l; + + BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT && + channel != OMAP_DSS_CHANNEL_LCD); + + enable_clocks(1); + l = dispc_read_reg(def_reg[channel]); + enable_clocks(0); + + return l; +} + +void dispc_set_trans_key(enum omap_channel ch, + enum omap_dss_trans_key_type type, + u32 trans_key) +{ + const struct dispc_reg tr_reg[] = { + DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; + + enable_clocks(1); + if (ch == OMAP_DSS_CHANNEL_LCD) + REG_FLD_MOD(DISPC_CONFIG, type, 11, 11); + else /* OMAP_DSS_CHANNEL_DIGIT */ + REG_FLD_MOD(DISPC_CONFIG, type, 13, 13); + + dispc_write_reg(tr_reg[ch], trans_key); + enable_clocks(0); +} + +void dispc_get_trans_key(enum omap_channel ch, + enum omap_dss_trans_key_type *type, + u32 *trans_key) +{ + const struct dispc_reg tr_reg[] = { + DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; + + enable_clocks(1); + if (type) { + if (ch == OMAP_DSS_CHANNEL_LCD) + *type = REG_GET(DISPC_CONFIG, 11, 11); + else if (ch == OMAP_DSS_CHANNEL_DIGIT) + *type = REG_GET(DISPC_CONFIG, 13, 13); + else + BUG(); + } + + if (trans_key) + *trans_key = dispc_read_reg(tr_reg[ch]); + enable_clocks(0); +} + +void dispc_enable_trans_key(enum omap_channel ch, bool enable) +{ + enable_clocks(1); + if (ch == OMAP_DSS_CHANNEL_LCD) + REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10); + else /* OMAP_DSS_CHANNEL_DIGIT */ + REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12); + enable_clocks(0); +} +void dispc_enable_alpha_blending(enum omap_channel ch, bool enable) +{ + if (cpu_is_omap24xx()) + return; + + enable_clocks(1); + if (ch == OMAP_DSS_CHANNEL_LCD) + REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18); + else /* OMAP_DSS_CHANNEL_DIGIT */ + REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19); + enable_clocks(0); +} +bool dispc_alpha_blending_enabled(enum omap_channel ch) +{ + bool enabled; + + if (cpu_is_omap24xx()) + return false; + + enable_clocks(1); + if (ch == OMAP_DSS_CHANNEL_LCD) + enabled = REG_GET(DISPC_CONFIG, 18, 18); + else if (ch == OMAP_DSS_CHANNEL_DIGIT) + enabled = REG_GET(DISPC_CONFIG, 18, 18); + else + BUG(); + enable_clocks(0); + + return enabled; + +} + + +bool dispc_trans_key_enabled(enum omap_channel ch) +{ + bool enabled; + + enable_clocks(1); + if (ch == OMAP_DSS_CHANNEL_LCD) + enabled = REG_GET(DISPC_CONFIG, 10, 10); + else if (ch == OMAP_DSS_CHANNEL_DIGIT) + enabled = REG_GET(DISPC_CONFIG, 12, 12); + else + BUG(); + enable_clocks(0); + + return enabled; +} + + +void dispc_set_tft_data_lines(u8 data_lines) +{ + int code; + + switch (data_lines) { + case 12: + code = 0; + break; + case 16: + code = 1; + break; + case 18: + code = 2; + break; + case 24: + code = 3; + break; + default: + BUG(); + return; + } + + enable_clocks(1); + REG_FLD_MOD(DISPC_CONTROL, code, 9, 8); + enable_clocks(0); +} + +void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode) +{ + u32 l; + int stallmode; + int gpout0 = 1; + int gpout1; + + switch (mode) { + case OMAP_DSS_PARALLELMODE_BYPASS: + stallmode = 0; + gpout1 = 1; + break; + + case OMAP_DSS_PARALLELMODE_RFBI: + stallmode = 1; + gpout1 = 0; + break; + + case OMAP_DSS_PARALLELMODE_DSI: + stallmode = 1; + gpout1 = 1; + break; + + default: + BUG(); + return; + } + + enable_clocks(1); + + l = dispc_read_reg(DISPC_CONTROL); + + l = FLD_MOD(l, stallmode, 11, 11); + l = FLD_MOD(l, gpout0, 15, 15); + l = FLD_MOD(l, gpout1, 16, 16); + + dispc_write_reg(DISPC_CONTROL, l); + + enable_clocks(0); +} + +static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp, + int vsw, int vfp, int vbp) +{ + if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { + if (hsw < 1 || hsw > 64 || + hfp < 1 || hfp > 256 || + hbp < 1 || hbp > 256 || + vsw < 1 || vsw > 64 || + vfp < 0 || vfp > 255 || + vbp < 0 || vbp > 255) + return false; + } else { + if (hsw < 1 || hsw > 256 || + hfp < 1 || hfp > 4096 || + hbp < 1 || hbp > 4096 || + vsw < 1 || vsw > 256 || + vfp < 0 || vfp > 4095 || + vbp < 0 || vbp > 4095) + return false; + } + + return true; +} + +bool dispc_lcd_timings_ok(struct omap_video_timings *timings) +{ + return _dispc_lcd_timings_ok(timings->hsw, timings->hfp, + timings->hbp, timings->vsw, + timings->vfp, timings->vbp); +} + +static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp, + int vsw, int vfp, int vbp) +{ + u32 timing_h, timing_v; + + if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { + timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) | + FLD_VAL(hbp-1, 27, 20); + + timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) | + FLD_VAL(vbp, 27, 20); + } else { + timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) | + FLD_VAL(hbp-1, 31, 20); + + timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) | + FLD_VAL(vbp, 31, 20); + } + + enable_clocks(1); + dispc_write_reg(DISPC_TIMING_H, timing_h); + dispc_write_reg(DISPC_TIMING_V, timing_v); + enable_clocks(0); +} + +/* change name to mode? */ +void dispc_set_lcd_timings(struct omap_video_timings *timings) +{ + unsigned xtot, ytot; + unsigned long ht, vt; + + if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp, + timings->hbp, timings->vsw, + timings->vfp, timings->vbp)) + BUG(); + + _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp, + timings->vsw, timings->vfp, timings->vbp); + + dispc_set_lcd_size(timings->x_res, timings->y_res); + + xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp; + ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp; + + ht = (timings->pixel_clock * 1000) / xtot; + vt = (timings->pixel_clock * 1000) / xtot / ytot; + + DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res); + DSSDBG("pck %u\n", timings->pixel_clock); + DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n", + timings->hsw, timings->hfp, timings->hbp, + timings->vsw, timings->vfp, timings->vbp); + + DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt); +} + +static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div) +{ + BUG_ON(lck_div < 1); + BUG_ON(pck_div < 2); + + enable_clocks(1); + dispc_write_reg(DISPC_DIVISOR, + FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0)); + enable_clocks(0); +} + +static void dispc_get_lcd_divisor(int *lck_div, int *pck_div) +{ + u32 l; + l = dispc_read_reg(DISPC_DIVISOR); + *lck_div = FLD_GET(l, 23, 16); + *pck_div = FLD_GET(l, 7, 0); +} + +unsigned long dispc_fclk_rate(void) +{ + unsigned long r = 0; + + if (dss_get_dispc_clk_source() == 0) + r = dss_clk_get_rate(DSS_CLK_FCK1); + else +#ifdef CONFIG_OMAP2_DSS_DSI + r = dsi_get_dsi1_pll_rate(); +#else + BUG(); +#endif + return r; +} + +unsigned long dispc_lclk_rate(void) +{ + int lcd; + unsigned long r; + u32 l; + + l = dispc_read_reg(DISPC_DIVISOR); + + lcd = FLD_GET(l, 23, 16); + + r = dispc_fclk_rate(); + + return r / lcd; +} + +unsigned long dispc_pclk_rate(void) +{ + int lcd, pcd; + unsigned long r; + u32 l; + + l = dispc_read_reg(DISPC_DIVISOR); + + lcd = FLD_GET(l, 23, 16); + pcd = FLD_GET(l, 7, 0); + + r = dispc_fclk_rate(); + + return r / lcd / pcd; +} + +void dispc_dump_clocks(struct seq_file *s) +{ + int lcd, pcd; + + enable_clocks(1); + + dispc_get_lcd_divisor(&lcd, &pcd); + + seq_printf(s, "- DISPC -\n"); + + seq_printf(s, "dispc fclk source = %s\n", + dss_get_dispc_clk_source() == 0 ? + "dss1_alwon_fclk" : "dsi1_pll_fclk"); + + seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate()); + seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd); + seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd); + + enable_clocks(0); +} + +void dispc_dump_regs(struct seq_file *s) +{ +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r)) + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + DUMPREG(DISPC_REVISION); + DUMPREG(DISPC_SYSCONFIG); + DUMPREG(DISPC_SYSSTATUS); + DUMPREG(DISPC_IRQSTATUS); + DUMPREG(DISPC_IRQENABLE); + DUMPREG(DISPC_CONTROL); + DUMPREG(DISPC_CONFIG); + DUMPREG(DISPC_CAPABLE); + DUMPREG(DISPC_DEFAULT_COLOR0); + DUMPREG(DISPC_DEFAULT_COLOR1); + DUMPREG(DISPC_TRANS_COLOR0); + DUMPREG(DISPC_TRANS_COLOR1); + DUMPREG(DISPC_LINE_STATUS); + DUMPREG(DISPC_LINE_NUMBER); + DUMPREG(DISPC_TIMING_H); + DUMPREG(DISPC_TIMING_V); + DUMPREG(DISPC_POL_FREQ); + DUMPREG(DISPC_DIVISOR); + DUMPREG(DISPC_GLOBAL_ALPHA); + DUMPREG(DISPC_SIZE_DIG); + DUMPREG(DISPC_SIZE_LCD); + + DUMPREG(DISPC_GFX_BA0); + DUMPREG(DISPC_GFX_BA1); + DUMPREG(DISPC_GFX_POSITION); + DUMPREG(DISPC_GFX_SIZE); + DUMPREG(DISPC_GFX_ATTRIBUTES); + DUMPREG(DISPC_GFX_FIFO_THRESHOLD); + DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS); + DUMPREG(DISPC_GFX_ROW_INC); + DUMPREG(DISPC_GFX_PIXEL_INC); + DUMPREG(DISPC_GFX_WINDOW_SKIP); + DUMPREG(DISPC_GFX_TABLE_BA); + + DUMPREG(DISPC_DATA_CYCLE1); + DUMPREG(DISPC_DATA_CYCLE2); + DUMPREG(DISPC_DATA_CYCLE3); + + DUMPREG(DISPC_CPR_COEF_R); + DUMPREG(DISPC_CPR_COEF_G); + DUMPREG(DISPC_CPR_COEF_B); + + DUMPREG(DISPC_GFX_PRELOAD); + + DUMPREG(DISPC_VID_BA0(0)); + DUMPREG(DISPC_VID_BA1(0)); + DUMPREG(DISPC_VID_POSITION(0)); + DUMPREG(DISPC_VID_SIZE(0)); + DUMPREG(DISPC_VID_ATTRIBUTES(0)); + DUMPREG(DISPC_VID_FIFO_THRESHOLD(0)); + DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0)); + DUMPREG(DISPC_VID_ROW_INC(0)); + DUMPREG(DISPC_VID_PIXEL_INC(0)); + DUMPREG(DISPC_VID_FIR(0)); + DUMPREG(DISPC_VID_PICTURE_SIZE(0)); + DUMPREG(DISPC_VID_ACCU0(0)); + DUMPREG(DISPC_VID_ACCU1(0)); + + DUMPREG(DISPC_VID_BA0(1)); + DUMPREG(DISPC_VID_BA1(1)); + DUMPREG(DISPC_VID_POSITION(1)); + DUMPREG(DISPC_VID_SIZE(1)); + DUMPREG(DISPC_VID_ATTRIBUTES(1)); + DUMPREG(DISPC_VID_FIFO_THRESHOLD(1)); + DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1)); + DUMPREG(DISPC_VID_ROW_INC(1)); + DUMPREG(DISPC_VID_PIXEL_INC(1)); + DUMPREG(DISPC_VID_FIR(1)); + DUMPREG(DISPC_VID_PICTURE_SIZE(1)); + DUMPREG(DISPC_VID_ACCU0(1)); + DUMPREG(DISPC_VID_ACCU1(1)); + + DUMPREG(DISPC_VID_FIR_COEF_H(0, 0)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 1)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 2)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 3)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 4)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 5)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 6)); + DUMPREG(DISPC_VID_FIR_COEF_H(0, 7)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6)); + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7)); + DUMPREG(DISPC_VID_CONV_COEF(0, 0)); + DUMPREG(DISPC_VID_CONV_COEF(0, 1)); + DUMPREG(DISPC_VID_CONV_COEF(0, 2)); + DUMPREG(DISPC_VID_CONV_COEF(0, 3)); + DUMPREG(DISPC_VID_CONV_COEF(0, 4)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 0)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 1)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 2)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 3)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 4)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 5)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 6)); + DUMPREG(DISPC_VID_FIR_COEF_V(0, 7)); + + DUMPREG(DISPC_VID_FIR_COEF_H(1, 0)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 1)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 2)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 3)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 4)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 5)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 6)); + DUMPREG(DISPC_VID_FIR_COEF_H(1, 7)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6)); + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7)); + DUMPREG(DISPC_VID_CONV_COEF(1, 0)); + DUMPREG(DISPC_VID_CONV_COEF(1, 1)); + DUMPREG(DISPC_VID_CONV_COEF(1, 2)); + DUMPREG(DISPC_VID_CONV_COEF(1, 3)); + DUMPREG(DISPC_VID_CONV_COEF(1, 4)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 0)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 1)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 2)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 3)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 4)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 5)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 6)); + DUMPREG(DISPC_VID_FIR_COEF_V(1, 7)); + + DUMPREG(DISPC_VID_PRELOAD(0)); + DUMPREG(DISPC_VID_PRELOAD(1)); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +#undef DUMPREG +} + +static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc, + bool ihs, bool ivs, u8 acbi, u8 acb) +{ + u32 l = 0; + + DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n", + onoff, rf, ieo, ipc, ihs, ivs, acbi, acb); + + l |= FLD_VAL(onoff, 17, 17); + l |= FLD_VAL(rf, 16, 16); + l |= FLD_VAL(ieo, 15, 15); + l |= FLD_VAL(ipc, 14, 14); + l |= FLD_VAL(ihs, 13, 13); + l |= FLD_VAL(ivs, 12, 12); + l |= FLD_VAL(acbi, 11, 8); + l |= FLD_VAL(acb, 7, 0); + + enable_clocks(1); + dispc_write_reg(DISPC_POL_FREQ, l); + enable_clocks(0); +} + +void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb) +{ + _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0, + (config & OMAP_DSS_LCD_RF) != 0, + (config & OMAP_DSS_LCD_IEO) != 0, + (config & OMAP_DSS_LCD_IPC) != 0, + (config & OMAP_DSS_LCD_IHS) != 0, + (config & OMAP_DSS_LCD_IVS) != 0, + acbi, acb); +} + +/* with fck as input clock rate, find dispc dividers that produce req_pck */ +void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, + struct dispc_clock_info *cinfo) +{ + u16 pcd_min = is_tft ? 2 : 3; + unsigned long best_pck; + u16 best_ld, cur_ld; + u16 best_pd, cur_pd; + + best_pck = 0; + best_ld = 0; + best_pd = 0; + + for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { + unsigned long lck = fck / cur_ld; + + for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { + unsigned long pck = lck / cur_pd; + long old_delta = abs(best_pck - req_pck); + long new_delta = abs(pck - req_pck); + + if (best_pck == 0 || new_delta < old_delta) { + best_pck = pck; + best_ld = cur_ld; + best_pd = cur_pd; + + if (pck == req_pck) + goto found; + } + + if (pck < req_pck) + break; + } + + if (lck / pcd_min < req_pck) + break; + } + +found: + cinfo->lck_div = best_ld; + cinfo->pck_div = best_pd; + cinfo->lck = fck / cinfo->lck_div; + cinfo->pck = cinfo->lck / cinfo->pck_div; +} + +/* calculate clock rates using dividers in cinfo */ +int dispc_calc_clock_rates(unsigned long dispc_fclk_rate, + struct dispc_clock_info *cinfo) +{ + if (cinfo->lck_div > 255 || cinfo->lck_div == 0) + return -EINVAL; + if (cinfo->pck_div < 2 || cinfo->pck_div > 255) + return -EINVAL; + + cinfo->lck = dispc_fclk_rate / cinfo->lck_div; + cinfo->pck = cinfo->lck / cinfo->pck_div; + + return 0; +} + +int dispc_set_clock_div(struct dispc_clock_info *cinfo) +{ + DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div); + DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div); + + dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div); + + return 0; +} + +int dispc_get_clock_div(struct dispc_clock_info *cinfo) +{ + unsigned long fck; + + fck = dispc_fclk_rate(); + + cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16); + cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0); + + cinfo->lck = fck / cinfo->lck_div; + cinfo->pck = cinfo->lck / cinfo->pck_div; + + return 0; +} + +/* dispc.irq_lock has to be locked by the caller */ +static void _omap_dispc_set_irqs(void) +{ + u32 mask; + u32 old_mask; + int i; + struct omap_dispc_isr_data *isr_data; + + mask = dispc.irq_error_mask; + + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + isr_data = &dispc.registered_isr[i]; + + if (isr_data->isr == NULL) + continue; + + mask |= isr_data->mask; + } + + enable_clocks(1); + + old_mask = dispc_read_reg(DISPC_IRQENABLE); + /* clear the irqstatus for newly enabled irqs */ + dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask); + + dispc_write_reg(DISPC_IRQENABLE, mask); + + enable_clocks(0); +} + +int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) +{ + int i; + int ret; + unsigned long flags; + struct omap_dispc_isr_data *isr_data; + + if (isr == NULL) + return -EINVAL; + + spin_lock_irqsave(&dispc.irq_lock, flags); + + /* check for duplicate entry */ + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + isr_data = &dispc.registered_isr[i]; + if (isr_data->isr == isr && isr_data->arg == arg && + isr_data->mask == mask) { + ret = -EINVAL; + goto err; + } + } + + isr_data = NULL; + ret = -EBUSY; + + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + isr_data = &dispc.registered_isr[i]; + + if (isr_data->isr != NULL) + continue; + + isr_data->isr = isr; + isr_data->arg = arg; + isr_data->mask = mask; + ret = 0; + + break; + } + + _omap_dispc_set_irqs(); + + spin_unlock_irqrestore(&dispc.irq_lock, flags); + + return 0; +err: + spin_unlock_irqrestore(&dispc.irq_lock, flags); + + return ret; +} +EXPORT_SYMBOL(omap_dispc_register_isr); + +int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask) +{ + int i; + unsigned long flags; + int ret = -EINVAL; + struct omap_dispc_isr_data *isr_data; + + spin_lock_irqsave(&dispc.irq_lock, flags); + + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + isr_data = &dispc.registered_isr[i]; + if (isr_data->isr != isr || isr_data->arg != arg || + isr_data->mask != mask) + continue; + + /* found the correct isr */ + + isr_data->isr = NULL; + isr_data->arg = NULL; + isr_data->mask = 0; + + ret = 0; + break; + } + + if (ret == 0) + _omap_dispc_set_irqs(); + + spin_unlock_irqrestore(&dispc.irq_lock, flags); + + return ret; +} +EXPORT_SYMBOL(omap_dispc_unregister_isr); + +#ifdef DEBUG +static void print_irq_status(u32 status) +{ + if ((status & dispc.irq_error_mask) == 0) + return; + + printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status); + +#define PIS(x) \ + if (status & DISPC_IRQ_##x) \ + printk(#x " "); + PIS(GFX_FIFO_UNDERFLOW); + PIS(OCP_ERR); + PIS(VID1_FIFO_UNDERFLOW); + PIS(VID2_FIFO_UNDERFLOW); + PIS(SYNC_LOST); + PIS(SYNC_LOST_DIGIT); +#undef PIS + + printk("\n"); +} +#endif + +/* Called from dss.c. Note that we don't touch clocks here, + * but we presume they are on because we got an IRQ. However, + * an irq handler may turn the clocks off, so we may not have + * clock later in the function. */ +void dispc_irq_handler(void) +{ + int i; + u32 irqstatus; + u32 handledirqs = 0; + u32 unhandled_errors; + struct omap_dispc_isr_data *isr_data; + struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; + + spin_lock(&dispc.irq_lock); + + irqstatus = dispc_read_reg(DISPC_IRQSTATUS); + +#ifdef DEBUG + if (dss_debug) + print_irq_status(irqstatus); +#endif + /* Ack the interrupt. Do it here before clocks are possibly turned + * off */ + dispc_write_reg(DISPC_IRQSTATUS, irqstatus); + /* flush posted write */ + dispc_read_reg(DISPC_IRQSTATUS); + + /* make a copy and unlock, so that isrs can unregister + * themselves */ + memcpy(registered_isr, dispc.registered_isr, + sizeof(registered_isr)); + + spin_unlock(&dispc.irq_lock); + + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + isr_data = ®istered_isr[i]; + + if (!isr_data->isr) + continue; + + if (isr_data->mask & irqstatus) { + isr_data->isr(isr_data->arg, irqstatus); + handledirqs |= isr_data->mask; + } + } + + spin_lock(&dispc.irq_lock); + + unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask; + + if (unhandled_errors) { + dispc.error_irqs |= unhandled_errors; + + dispc.irq_error_mask &= ~unhandled_errors; + _omap_dispc_set_irqs(); + + schedule_work(&dispc.error_work); + } + + spin_unlock(&dispc.irq_lock); +} + +static void dispc_error_worker(struct work_struct *work) +{ + int i; + u32 errors; + unsigned long flags; + + spin_lock_irqsave(&dispc.irq_lock, flags); + errors = dispc.error_irqs; + dispc.error_irqs = 0; + spin_unlock_irqrestore(&dispc.irq_lock, flags); + + if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) { + DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n"); + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + if (ovl->id == 0) { + dispc_enable_plane(ovl->id, 0); + dispc_go(ovl->manager->id); + mdelay(50); + break; + } + } + } + + if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) { + DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n"); + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + if (ovl->id == 1) { + dispc_enable_plane(ovl->id, 0); + dispc_go(ovl->manager->id); + mdelay(50); + break; + } + } + } + + if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) { + DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n"); + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + if (ovl->id == 2) { + dispc_enable_plane(ovl->id, 0); + dispc_go(ovl->manager->id); + mdelay(50); + break; + } + } + } + + if (errors & DISPC_IRQ_SYNC_LOST) { + struct omap_overlay_manager *manager = NULL; + bool enable = false; + + DSSERR("SYNC_LOST, disabling LCD\n"); + + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { + struct omap_overlay_manager *mgr; + mgr = omap_dss_get_overlay_manager(i); + + if (mgr->id == OMAP_DSS_CHANNEL_LCD) { + manager = mgr; + enable = mgr->device->state == + OMAP_DSS_DISPLAY_ACTIVE; + mgr->device->disable(mgr->device); + break; + } + } + + if (manager) { + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + if (ovl->id != 0 && ovl->manager == manager) + dispc_enable_plane(ovl->id, 0); + } + + dispc_go(manager->id); + mdelay(50); + if (enable) + manager->device->enable(manager->device); + } + } + + if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) { + struct omap_overlay_manager *manager = NULL; + bool enable = false; + + DSSERR("SYNC_LOST_DIGIT, disabling TV\n"); + + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { + struct omap_overlay_manager *mgr; + mgr = omap_dss_get_overlay_manager(i); + + if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) { + manager = mgr; + enable = mgr->device->state == + OMAP_DSS_DISPLAY_ACTIVE; + mgr->device->disable(mgr->device); + break; + } + } + + if (manager) { + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) + continue; + + if (ovl->id != 0 && ovl->manager == manager) + dispc_enable_plane(ovl->id, 0); + } + + dispc_go(manager->id); + mdelay(50); + if (enable) + manager->device->enable(manager->device); + } + } + + if (errors & DISPC_IRQ_OCP_ERR) { + DSSERR("OCP_ERR\n"); + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { + struct omap_overlay_manager *mgr; + mgr = omap_dss_get_overlay_manager(i); + + if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC) + mgr->device->disable(mgr->device); + } + } + + spin_lock_irqsave(&dispc.irq_lock, flags); + dispc.irq_error_mask |= errors; + _omap_dispc_set_irqs(); + spin_unlock_irqrestore(&dispc.irq_lock, flags); +} + +int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout) +{ + void dispc_irq_wait_handler(void *data, u32 mask) + { + complete((struct completion *)data); + } + + int r; + DECLARE_COMPLETION_ONSTACK(completion); + + r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, + irqmask); + + if (r) + return r; + + timeout = wait_for_completion_timeout(&completion, timeout); + + omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); + + if (timeout == 0) + return -ETIMEDOUT; + + if (timeout == -ERESTARTSYS) + return -ERESTARTSYS; + + return 0; +} + +int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, + unsigned long timeout) +{ + void dispc_irq_wait_handler(void *data, u32 mask) + { + complete((struct completion *)data); + } + + int r; + DECLARE_COMPLETION_ONSTACK(completion); + + r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, + irqmask); + + if (r) + return r; + + timeout = wait_for_completion_interruptible_timeout(&completion, + timeout); + + omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); + + if (timeout == 0) + return -ETIMEDOUT; + + if (timeout == -ERESTARTSYS) + return -ERESTARTSYS; + + return 0; +} + +#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC +void dispc_fake_vsync_irq(void) +{ + u32 irqstatus = DISPC_IRQ_VSYNC; + int i; + + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { + struct omap_dispc_isr_data *isr_data; + isr_data = &dispc.registered_isr[i]; + + if (!isr_data->isr) + continue; + + if (isr_data->mask & irqstatus) + isr_data->isr(isr_data->arg, irqstatus); + } +} +#endif + +static void _omap_dispc_initialize_irq(void) +{ + unsigned long flags; + + spin_lock_irqsave(&dispc.irq_lock, flags); + + memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr)); + + dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; + + /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, + * so clear it */ + dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS)); + + _omap_dispc_set_irqs(); + + spin_unlock_irqrestore(&dispc.irq_lock, flags); +} + +void dispc_enable_sidle(void) +{ + REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */ +} + +void dispc_disable_sidle(void) +{ + REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */ +} + +static void _omap_dispc_initial_config(void) +{ + u32 l; + + l = dispc_read_reg(DISPC_SYSCONFIG); + l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */ + l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */ + l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */ + l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */ + dispc_write_reg(DISPC_SYSCONFIG, l); + + /* FUNCGATED */ + REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); + + /* L3 firewall setting: enable access to OCM RAM */ + /* XXX this should be somewhere in plat-omap */ + if (cpu_is_omap24xx()) + __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0)); + + _dispc_setup_color_conv_coef(); + + dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY); + + dispc_read_plane_fifo_sizes(); +} + +int dispc_init(void) +{ + u32 rev; + + spin_lock_init(&dispc.irq_lock); + + INIT_WORK(&dispc.error_work, dispc_error_worker); + + dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); + if (!dispc.base) { + DSSERR("can't ioremap DISPC\n"); + return -ENOMEM; + } + + enable_clocks(1); + + _omap_dispc_initial_config(); + + _omap_dispc_initialize_irq(); + + dispc_save_context(); + + rev = dispc_read_reg(DISPC_REVISION); + printk(KERN_INFO "OMAP DISPC rev %d.%d\n", + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); + + enable_clocks(0); + + return 0; +} + +void dispc_exit(void) +{ + iounmap(dispc.base); +} + +int dispc_enable_plane(enum omap_plane plane, bool enable) +{ + DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); + + enable_clocks(1); + _dispc_enable_plane(plane, enable); + enable_clocks(0); + + return 0; +} + +int dispc_setup_plane(enum omap_plane plane, + u32 paddr, u16 screen_width, + u16 pos_x, u16 pos_y, + u16 width, u16 height, + u16 out_width, u16 out_height, + enum omap_color_mode color_mode, + bool ilace, + enum omap_dss_rotation_type rotation_type, + u8 rotation, bool mirror, u8 global_alpha) +{ + int r = 0; + + DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> " + "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n", + plane, paddr, screen_width, pos_x, pos_y, + width, height, + out_width, out_height, + ilace, color_mode, + rotation, mirror); + + enable_clocks(1); + + r = _dispc_setup_plane(plane, + paddr, screen_width, + pos_x, pos_y, + width, height, + out_width, out_height, + color_mode, ilace, + rotation_type, + rotation, mirror, + global_alpha); + + enable_clocks(0); + + return r; +} -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 10/19] OMAP: DSS2: DPI driver 2009-11-09 11:45 ` [PATCH 09/19] OMAP: DSS2: DISPC Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 11/19] OMAP: DSS2: Video encoder driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel, Tomi Valkeinen This implements MIPI DPI interface. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/dpi.c | 399 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 399 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/dpi.c diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c new file mode 100644 index 0000000..2d71031 --- /dev/null +++ b/drivers/video/omap2/dss/dpi.c @@ -0,0 +1,399 @@ +/* + * linux/drivers/video/omap2/dss/dpi.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DPI" + +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/errno.h> + +#include <plat/display.h> +#include <plat/cpu.h> + +#include "dss.h" + +static struct { + int update_enabled; +} dpi; + +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL +static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req, + unsigned long *fck, int *lck_div, int *pck_div) +{ + struct dsi_clock_info dsi_cinfo; + struct dispc_clock_info dispc_cinfo; + int r; + + r = dsi_pll_calc_clock_div_pck(is_tft, pck_req, &dsi_cinfo, + &dispc_cinfo); + if (r) + return r; + + r = dsi_pll_set_clock_div(&dsi_cinfo); + if (r) + return r; + + dss_select_clk_source(0, 1); + + r = dispc_set_clock_div(&dispc_cinfo); + if (r) + return r; + + *fck = dsi_cinfo.dsi1_pll_fclk; + *lck_div = dispc_cinfo.lck_div; + *pck_div = dispc_cinfo.pck_div; + + return 0; +} +#else +static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req, + unsigned long *fck, int *lck_div, int *pck_div) +{ + struct dss_clock_info dss_cinfo; + struct dispc_clock_info dispc_cinfo; + int r; + + r = dss_calc_clock_div(is_tft, pck_req, &dss_cinfo, &dispc_cinfo); + if (r) + return r; + + r = dss_set_clock_div(&dss_cinfo); + if (r) + return r; + + r = dispc_set_clock_div(&dispc_cinfo); + if (r) + return r; + + *fck = dss_cinfo.fck; + *lck_div = dispc_cinfo.lck_div; + *pck_div = dispc_cinfo.pck_div; + + return 0; +} +#endif + +static int dpi_set_mode(struct omap_dss_device *dssdev) +{ + struct omap_video_timings *t = &dssdev->panel.timings; + int lck_div, pck_div; + unsigned long fck; + unsigned long pck; + bool is_tft; + int r = 0; + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi, + dssdev->panel.acb); + + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; + +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL + r = dpi_set_dsi_clk(is_tft, t->pixel_clock * 1000, + &fck, &lck_div, &pck_div); +#else + r = dpi_set_dispc_clk(is_tft, t->pixel_clock * 1000, + &fck, &lck_div, &pck_div); +#endif + if (r) + goto err0; + + pck = fck / lck_div / pck_div / 1000; + + if (pck != t->pixel_clock) { + DSSWARN("Could not find exact pixel clock. " + "Requested %d kHz, got %lu kHz\n", + t->pixel_clock, pck); + + t->pixel_clock = pck; + } + + dispc_set_lcd_timings(t); + +err0: + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + return r; +} + +static int dpi_basic_init(struct omap_dss_device *dssdev) +{ + bool is_tft; + + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; + + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); + dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT : + OMAP_DSS_LCD_DISPLAY_STN); + dispc_set_tft_data_lines(dssdev->phy.dpi.data_lines); + + return 0; +} + +static int dpi_display_enable(struct omap_dss_device *dssdev) +{ + int r; + + r = omap_dss_start_device(dssdev); + if (r) { + DSSERR("failed to start device\n"); + goto err0; + } + + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { + DSSERR("display already enabled\n"); + r = -EINVAL; + goto err1; + } + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + r = dpi_basic_init(dssdev); + if (r) + goto err2; + +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL + dss_clk_enable(DSS_CLK_FCK2); + r = dsi_pll_init(dssdev, 0, 1); + if (r) + goto err3; +#endif + r = dpi_set_mode(dssdev); + if (r) + goto err4; + + mdelay(2); + + dispc_enable_lcd_out(1); + + r = dssdev->driver->enable(dssdev); + if (r) + goto err5; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; + +err5: + dispc_enable_lcd_out(0); +err4: +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL + dsi_pll_uninit(); +err3: + dss_clk_disable(DSS_CLK_FCK2); +#endif +err2: + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +err1: + omap_dss_stop_device(dssdev); +err0: + return r; +} + +static int dpi_display_resume(struct omap_dss_device *dssdev); + +static void dpi_display_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) + return; + + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) + dpi_display_resume(dssdev); + + dssdev->driver->disable(dssdev); + + dispc_enable_lcd_out(0); + +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL + dss_select_clk_source(0, 0); + dsi_pll_uninit(); + dss_clk_disable(DSS_CLK_FCK2); +#endif + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; + + omap_dss_stop_device(dssdev); +} + +static int dpi_display_suspend(struct omap_dss_device *dssdev) +{ + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return -EINVAL; + + DSSDBG("dpi_display_suspend\n"); + + if (dssdev->driver->suspend) + dssdev->driver->suspend(dssdev); + + dispc_enable_lcd_out(0); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; + + return 0; +} + +static int dpi_display_resume(struct omap_dss_device *dssdev) +{ + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) + return -EINVAL; + + DSSDBG("dpi_display_resume\n"); + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dispc_enable_lcd_out(1); + + if (dssdev->driver->resume) + dssdev->driver->resume(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +} + +static void dpi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + DSSDBG("dpi_set_timings\n"); + dssdev->panel.timings = *timings; + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { + dpi_set_mode(dssdev); + dispc_go(OMAP_DSS_CHANNEL_LCD); + } +} + +static int dpi_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + bool is_tft; + int r; + int lck_div, pck_div; + unsigned long fck; + unsigned long pck; + + if (!dispc_lcd_timings_ok(timings)) + return -EINVAL; + + if (timings->pixel_clock == 0) + return -EINVAL; + + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; + +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL + { + struct dsi_clock_info dsi_cinfo; + struct dispc_clock_info dispc_cinfo; + r = dsi_pll_calc_clock_div_pck(is_tft, + timings->pixel_clock * 1000, + &dsi_cinfo, &dispc_cinfo); + + if (r) + return r; + + fck = dsi_cinfo.dsi1_pll_fclk; + lck_div = dispc_cinfo.lck_div; + pck_div = dispc_cinfo.pck_div; + } +#else + { + struct dss_clock_info dss_cinfo; + struct dispc_clock_info dispc_cinfo; + r = dss_calc_clock_div(is_tft, timings->pixel_clock * 1000, + &dss_cinfo, &dispc_cinfo); + + if (r) + return r; + + fck = dss_cinfo.fck; + lck_div = dispc_cinfo.lck_div; + pck_div = dispc_cinfo.pck_div; + } +#endif + + pck = fck / lck_div / pck_div / 1000; + + timings->pixel_clock = pck; + + return 0; +} + +static void dpi_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +static int dpi_display_set_update_mode(struct omap_dss_device *dssdev, + enum omap_dss_update_mode mode) +{ + if (mode == OMAP_DSS_UPDATE_MANUAL) + return -EINVAL; + + if (mode == OMAP_DSS_UPDATE_DISABLED) { + dispc_enable_lcd_out(0); + dpi.update_enabled = 0; + } else { + dispc_enable_lcd_out(1); + dpi.update_enabled = 1; + } + + return 0; +} + +static enum omap_dss_update_mode dpi_display_get_update_mode( + struct omap_dss_device *dssdev) +{ + return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO : + OMAP_DSS_UPDATE_DISABLED; +} + +int dpi_init_display(struct omap_dss_device *dssdev) +{ + DSSDBG("init_display\n"); + + dssdev->enable = dpi_display_enable; + dssdev->disable = dpi_display_disable; + dssdev->suspend = dpi_display_suspend; + dssdev->resume = dpi_display_resume; + dssdev->set_timings = dpi_set_timings; + dssdev->check_timings = dpi_check_timings; + dssdev->get_timings = dpi_get_timings; + dssdev->set_update_mode = dpi_display_set_update_mode; + dssdev->get_update_mode = dpi_display_get_update_mode; + + return 0; +} + +int dpi_init(void) +{ + return 0; +} + +void dpi_exit(void) +{ +} + -- 1.6.5.1 ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 11/19] OMAP: DSS2: Video encoder driver 2009-11-09 11:45 ` [PATCH 10/19] OMAP: DSS2: DPI driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 12/19] OMAP: DSS2: RFBI driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel VENC (video encoder) driver implements OMAP's analog S-Video/Composite TV-out. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> --- drivers/video/omap2/dss/venc.c | 797 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 797 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/venc.c diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c new file mode 100644 index 0000000..749a5a0 --- /dev/null +++ b/drivers/video/omap2/dss/venc.c @@ -0,0 +1,797 @@ +/* + * linux/drivers/video/omap2/dss/venc.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * VENC settings from TI's DSS driver + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "VENC" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/mutex.h> +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/seq_file.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> + +#include <plat/display.h> +#include <plat/cpu.h> + +#include "dss.h" + +#define VENC_BASE 0x48050C00 + +/* Venc registers */ +#define VENC_REV_ID 0x00 +#define VENC_STATUS 0x04 +#define VENC_F_CONTROL 0x08 +#define VENC_VIDOUT_CTRL 0x10 +#define VENC_SYNC_CTRL 0x14 +#define VENC_LLEN 0x1C +#define VENC_FLENS 0x20 +#define VENC_HFLTR_CTRL 0x24 +#define VENC_CC_CARR_WSS_CARR 0x28 +#define VENC_C_PHASE 0x2C +#define VENC_GAIN_U 0x30 +#define VENC_GAIN_V 0x34 +#define VENC_GAIN_Y 0x38 +#define VENC_BLACK_LEVEL 0x3C +#define VENC_BLANK_LEVEL 0x40 +#define VENC_X_COLOR 0x44 +#define VENC_M_CONTROL 0x48 +#define VENC_BSTAMP_WSS_DATA 0x4C +#define VENC_S_CARR 0x50 +#define VENC_LINE21 0x54 +#define VENC_LN_SEL 0x58 +#define VENC_L21__WC_CTL 0x5C +#define VENC_HTRIGGER_VTRIGGER 0x60 +#define VENC_SAVID__EAVID 0x64 +#define VENC_FLEN__FAL 0x68 +#define VENC_LAL__PHASE_RESET 0x6C +#define VENC_HS_INT_START_STOP_X 0x70 +#define VENC_HS_EXT_START_STOP_X 0x74 +#define VENC_VS_INT_START_X 0x78 +#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C +#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80 +#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84 +#define VENC_VS_EXT_STOP_Y 0x88 +#define VENC_AVID_START_STOP_X 0x90 +#define VENC_AVID_START_STOP_Y 0x94 +#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0 +#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4 +#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8 +#define VENC_TVDETGP_INT_START_STOP_X 0xB0 +#define VENC_TVDETGP_INT_START_STOP_Y 0xB4 +#define VENC_GEN_CTRL 0xB8 +#define VENC_OUTPUT_CONTROL 0xC4 +#define VENC_OUTPUT_TEST 0xC8 +#define VENC_DAC_B__DAC_C 0xC8 + +struct venc_config { + u32 f_control; + u32 vidout_ctrl; + u32 sync_ctrl; + u32 llen; + u32 flens; + u32 hfltr_ctrl; + u32 cc_carr_wss_carr; + u32 c_phase; + u32 gain_u; + u32 gain_v; + u32 gain_y; + u32 black_level; + u32 blank_level; + u32 x_color; + u32 m_control; + u32 bstamp_wss_data; + u32 s_carr; + u32 line21; + u32 ln_sel; + u32 l21__wc_ctl; + u32 htrigger_vtrigger; + u32 savid__eavid; + u32 flen__fal; + u32 lal__phase_reset; + u32 hs_int_start_stop_x; + u32 hs_ext_start_stop_x; + u32 vs_int_start_x; + u32 vs_int_stop_x__vs_int_start_y; + u32 vs_int_stop_y__vs_ext_start_x; + u32 vs_ext_stop_x__vs_ext_start_y; + u32 vs_ext_stop_y; + u32 avid_start_stop_x; + u32 avid_start_stop_y; + u32 fid_int_start_x__fid_int_start_y; + u32 fid_int_offset_y__fid_ext_start_x; + u32 fid_ext_start_y__fid_ext_offset_y; + u32 tvdetgp_int_start_stop_x; + u32 tvdetgp_int_start_stop_y; + u32 gen_ctrl; +}; + +/* from TRM */ +static const struct venc_config venc_config_pal_trm = { + .f_control = 0, + .vidout_ctrl = 1, + .sync_ctrl = 0x40, + .llen = 0x35F, /* 863 */ + .flens = 0x270, /* 624 */ + .hfltr_ctrl = 0, + .cc_carr_wss_carr = 0x2F7225ED, + .c_phase = 0, + .gain_u = 0x111, + .gain_v = 0x181, + .gain_y = 0x140, + .black_level = 0x3B, + .blank_level = 0x3B, + .x_color = 0x7, + .m_control = 0x2, + .bstamp_wss_data = 0x3F, + .s_carr = 0x2A098ACB, + .line21 = 0, + .ln_sel = 0x01290015, + .l21__wc_ctl = 0x0000F603, + .htrigger_vtrigger = 0, + + .savid__eavid = 0x06A70108, + .flen__fal = 0x00180270, + .lal__phase_reset = 0x00040135, + .hs_int_start_stop_x = 0x00880358, + .hs_ext_start_stop_x = 0x000F035F, + .vs_int_start_x = 0x01A70000, + .vs_int_stop_x__vs_int_start_y = 0x000001A7, + .vs_int_stop_y__vs_ext_start_x = 0x01AF0000, + .vs_ext_stop_x__vs_ext_start_y = 0x000101AF, + .vs_ext_stop_y = 0x00000025, + .avid_start_stop_x = 0x03530083, + .avid_start_stop_y = 0x026C002E, + .fid_int_start_x__fid_int_start_y = 0x0001008A, + .fid_int_offset_y__fid_ext_start_x = 0x002E0138, + .fid_ext_start_y__fid_ext_offset_y = 0x01380001, + + .tvdetgp_int_start_stop_x = 0x00140001, + .tvdetgp_int_start_stop_y = 0x00010001, + .gen_ctrl = 0x00FF0000, +}; + +/* from TRM */ +static const struct venc_config venc_config_ntsc_trm = { + .f_control = 0, + .vidout_ctrl = 1, + .sync_ctrl = 0x8040, + .llen = 0x359, + .flens = 0x20C, + .hfltr_ctrl = 0, + .cc_carr_wss_carr = 0x043F2631, + .c_phase = 0, + .gain_u = 0x102, + .gain_v = 0x16C, + .gain_y = 0x12F, + .black_level = 0x43, + .blank_level = 0x38, + .x_color = 0x7, + .m_control = 0x1, + .bstamp_wss_data = 0x38, + .s_carr = 0x21F07C1F, + .line21 = 0, + .ln_sel = 0x01310011, + .l21__wc_ctl = 0x0000F003, + .htrigger_vtrigger = 0, + + .savid__eavid = 0x069300F4, + .flen__fal = 0x0016020C, + .lal__phase_reset = 0x00060107, + .hs_int_start_stop_x = 0x008E0350, + .hs_ext_start_stop_x = 0x000F0359, + .vs_int_start_x = 0x01A00000, + .vs_int_stop_x__vs_int_start_y = 0x020701A0, + .vs_int_stop_y__vs_ext_start_x = 0x01AC0024, + .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC, + .vs_ext_stop_y = 0x00000006, + .avid_start_stop_x = 0x03480078, + .avid_start_stop_y = 0x02060024, + .fid_int_start_x__fid_int_start_y = 0x0001008A, + .fid_int_offset_y__fid_ext_start_x = 0x01AC0106, + .fid_ext_start_y__fid_ext_offset_y = 0x01060006, + + .tvdetgp_int_start_stop_x = 0x00140001, + .tvdetgp_int_start_stop_y = 0x00010001, + .gen_ctrl = 0x00F90000, +}; + +static const struct venc_config venc_config_pal_bdghi = { + .f_control = 0, + .vidout_ctrl = 0, + .sync_ctrl = 0, + .hfltr_ctrl = 0, + .x_color = 0, + .line21 = 0, + .ln_sel = 21, + .htrigger_vtrigger = 0, + .tvdetgp_int_start_stop_x = 0x00140001, + .tvdetgp_int_start_stop_y = 0x00010001, + .gen_ctrl = 0x00FB0000, + + .llen = 864-1, + .flens = 625-1, + .cc_carr_wss_carr = 0x2F7625ED, + .c_phase = 0xDF, + .gain_u = 0x111, + .gain_v = 0x181, + .gain_y = 0x140, + .black_level = 0x3e, + .blank_level = 0x3e, + .m_control = 0<<2 | 1<<1, + .bstamp_wss_data = 0x42, + .s_carr = 0x2a098acb, + .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0, + .savid__eavid = 0x06A70108, + .flen__fal = 23<<16 | 624<<0, + .lal__phase_reset = 2<<17 | 310<<0, + .hs_int_start_stop_x = 0x00920358, + .hs_ext_start_stop_x = 0x000F035F, + .vs_int_start_x = 0x1a7<<16, + .vs_int_stop_x__vs_int_start_y = 0x000601A7, + .vs_int_stop_y__vs_ext_start_x = 0x01AF0036, + .vs_ext_stop_x__vs_ext_start_y = 0x27101af, + .vs_ext_stop_y = 0x05, + .avid_start_stop_x = 0x03530082, + .avid_start_stop_y = 0x0270002E, + .fid_int_start_x__fid_int_start_y = 0x0005008A, + .fid_int_offset_y__fid_ext_start_x = 0x002E0138, + .fid_ext_start_y__fid_ext_offset_y = 0x01380005, +}; + +const struct omap_video_timings omap_dss_pal_timings = { + .x_res = 720, + .y_res = 574, + .pixel_clock = 13500, + .hsw = 64, + .hfp = 12, + .hbp = 68, + .vsw = 5, + .vfp = 5, + .vbp = 41, +}; +EXPORT_SYMBOL(omap_dss_pal_timings); + +const struct omap_video_timings omap_dss_ntsc_timings = { + .x_res = 720, + .y_res = 482, + .pixel_clock = 13500, + .hsw = 64, + .hfp = 16, + .hbp = 58, + .vsw = 6, + .vfp = 6, + .vbp = 31, +}; +EXPORT_SYMBOL(omap_dss_ntsc_timings); + +static struct { + void __iomem *base; + struct mutex venc_lock; + u32 wss_data; + struct regulator *vdda_dac_reg; +} venc; + +static inline void venc_write_reg(int idx, u32 val) +{ + __raw_writel(val, venc.base + idx); +} + +static inline u32 venc_read_reg(int idx) +{ + u32 l = __raw_readl(venc.base + idx); + return l; +} + +static void venc_write_config(const struct venc_config *config) +{ + DSSDBG("write venc conf\n"); + + venc_write_reg(VENC_LLEN, config->llen); + venc_write_reg(VENC_FLENS, config->flens); + venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr); + venc_write_reg(VENC_C_PHASE, config->c_phase); + venc_write_reg(VENC_GAIN_U, config->gain_u); + venc_write_reg(VENC_GAIN_V, config->gain_v); + venc_write_reg(VENC_GAIN_Y, config->gain_y); + venc_write_reg(VENC_BLACK_LEVEL, config->black_level); + venc_write_reg(VENC_BLANK_LEVEL, config->blank_level); + venc_write_reg(VENC_M_CONTROL, config->m_control); + venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | + venc.wss_data); + venc_write_reg(VENC_S_CARR, config->s_carr); + venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl); + venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid); + venc_write_reg(VENC_FLEN__FAL, config->flen__fal); + venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset); + venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x); + venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x); + venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x); + venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y, + config->vs_int_stop_x__vs_int_start_y); + venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X, + config->vs_int_stop_y__vs_ext_start_x); + venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y, + config->vs_ext_stop_x__vs_ext_start_y); + venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y); + venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x); + venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y); + venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y, + config->fid_int_start_x__fid_int_start_y); + venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X, + config->fid_int_offset_y__fid_ext_start_x); + venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y, + config->fid_ext_start_y__fid_ext_offset_y); + + venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C)); + venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl); + venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl); + venc_write_reg(VENC_X_COLOR, config->x_color); + venc_write_reg(VENC_LINE21, config->line21); + venc_write_reg(VENC_LN_SEL, config->ln_sel); + venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger); + venc_write_reg(VENC_TVDETGP_INT_START_STOP_X, + config->tvdetgp_int_start_stop_x); + venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y, + config->tvdetgp_int_start_stop_y); + venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl); + venc_write_reg(VENC_F_CONTROL, config->f_control); + venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl); +} + +static void venc_reset(void) +{ + int t = 1000; + + venc_write_reg(VENC_F_CONTROL, 1<<8); + while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) { + if (--t == 0) { + DSSERR("Failed to reset venc\n"); + return; + } + } + + /* the magical sleep that makes things work */ + msleep(20); +} + +static void venc_enable_clocks(int enable) +{ + if (enable) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | + DSS_CLK_96M); + else + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | + DSS_CLK_96M); +} + +static const struct venc_config *venc_timings_to_config( + struct omap_video_timings *timings) +{ + if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) + return &venc_config_pal_trm; + + if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) + return &venc_config_ntsc_trm; + + BUG(); +} + + + + + +/* driver */ +static int venc_panel_probe(struct omap_dss_device *dssdev) +{ + dssdev->panel.timings = omap_dss_pal_timings; + + return 0; +} + +static void venc_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int venc_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + /* wait couple of vsyncs until enabling the LCD */ + msleep(50); + + if (dssdev->platform_enable) + r = dssdev->platform_enable(dssdev); + + return r; +} + +static void venc_panel_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + /* wait at least 5 vsyncs after disabling the LCD */ + + msleep(100); +} + +static int venc_panel_suspend(struct omap_dss_device *dssdev) +{ + venc_panel_disable(dssdev); + return 0; +} + +static int venc_panel_resume(struct omap_dss_device *dssdev) +{ + return venc_panel_enable(dssdev); +} + +static struct omap_dss_driver venc_driver = { + .probe = venc_panel_probe, + .remove = venc_panel_remove, + + .enable = venc_panel_enable, + .disable = venc_panel_disable, + .suspend = venc_panel_suspend, + .resume = venc_panel_resume, + + .driver = { + .name = "venc", + .owner = THIS_MODULE, + }, +}; +/* driver end */ + + + +int venc_init(struct platform_device *pdev) +{ + u8 rev_id; + + mutex_init(&venc.venc_lock); + + venc.wss_data = 0; + + venc.base = ioremap(VENC_BASE, SZ_1K); + if (!venc.base) { + DSSERR("can't ioremap VENC\n"); + return -ENOMEM; + } + + venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac"); + if (IS_ERR(venc.vdda_dac_reg)) { + iounmap(venc.base); + DSSERR("can't get VDDA_DAC regulator\n"); + return PTR_ERR(venc.vdda_dac_reg); + } + + venc_enable_clocks(1); + + rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff); + printk(KERN_INFO "OMAP VENC rev %d\n", rev_id); + + venc_enable_clocks(0); + + return omap_dss_register_driver(&venc_driver); +} + +void venc_exit(void) +{ + omap_dss_unregister_driver(&venc_driver); + + regulator_put(venc.vdda_dac_reg); + + iounmap(venc.base); +} + +static void venc_power_on(struct omap_dss_device *dssdev) +{ + u32 l; + + venc_enable_clocks(1); + + venc_reset(); + venc_write_config(venc_timings_to_config(&dssdev->panel.timings)); + + dss_set_venc_output(dssdev->phy.venc.type); + dss_set_dac_pwrdn_bgz(1); + + l = 0; + + if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) + l |= 1 << 1; + else /* S-Video */ + l |= (1 << 0) | (1 << 2); + + if (dssdev->phy.venc.invert_polarity == false) + l |= 1 << 3; + + venc_write_reg(VENC_OUTPUT_CONTROL, l); + + dispc_set_digit_size(dssdev->panel.timings.x_res, + dssdev->panel.timings.y_res/2); + + regulator_enable(venc.vdda_dac_reg); + + if (dssdev->platform_enable) + dssdev->platform_enable(dssdev); + + dispc_enable_digit_out(1); +} + +static void venc_power_off(struct omap_dss_device *dssdev) +{ + venc_write_reg(VENC_OUTPUT_CONTROL, 0); + dss_set_dac_pwrdn_bgz(0); + + dispc_enable_digit_out(0); + + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + regulator_disable(venc.vdda_dac_reg); + + venc_enable_clocks(0); +} + +static int venc_enable_display(struct omap_dss_device *dssdev) +{ + int r = 0; + + DSSDBG("venc_enable_display\n"); + + mutex_lock(&venc.venc_lock); + + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { + r = -EINVAL; + goto err; + } + + venc_power_on(dssdev); + + venc.wss_data = 0; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; +err: + mutex_unlock(&venc.venc_lock); + + return r; +} + +static void venc_disable_display(struct omap_dss_device *dssdev) +{ + DSSDBG("venc_disable_display\n"); + + mutex_lock(&venc.venc_lock); + + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) + goto end; + + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) { + /* suspended is the same as disabled with venc */ + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; + goto end; + } + + venc_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; +end: + mutex_unlock(&venc.venc_lock); +} + +static int venc_display_suspend(struct omap_dss_device *dssdev) +{ + int r = 0; + + DSSDBG("venc_display_suspend\n"); + + mutex_lock(&venc.venc_lock); + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { + r = -EINVAL; + goto err; + } + + venc_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; +err: + mutex_unlock(&venc.venc_lock); + + return r; +} + +static int venc_display_resume(struct omap_dss_device *dssdev) +{ + int r = 0; + + DSSDBG("venc_display_resume\n"); + + mutex_lock(&venc.venc_lock); + + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) { + r = -EINVAL; + goto err; + } + + venc_power_on(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; +err: + mutex_unlock(&venc.venc_lock); + + return r; +} + +static void venc_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +static void venc_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + DSSDBG("venc_set_timings\n"); + + /* Reset WSS data when the TV standard changes. */ + if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings))) + venc.wss_data = 0; + + dssdev->panel.timings = *timings; + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { + /* turn the venc off and on to get new timings to use */ + venc_disable_display(dssdev); + venc_enable_display(dssdev); + } +} + +static int venc_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + DSSDBG("venc_check_timings\n"); + + if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) + return 0; + + if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) + return 0; + + return -EINVAL; +} + +static u32 venc_get_wss(struct omap_dss_device *dssdev) +{ + /* Invert due to VENC_L21_WC_CTL:INV=1 */ + return (venc.wss_data >> 8) ^ 0xfffff; +} + +static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss) +{ + const struct venc_config *config; + + DSSDBG("venc_set_wss\n"); + + mutex_lock(&venc.venc_lock); + + config = venc_timings_to_config(&dssdev->panel.timings); + + /* Invert due to VENC_L21_WC_CTL:INV=1 */ + venc.wss_data = (wss ^ 0xfffff) << 8; + + venc_enable_clocks(1); + + venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | + venc.wss_data); + + venc_enable_clocks(0); + + mutex_unlock(&venc.venc_lock); + + return 0; +} + +static enum omap_dss_update_mode venc_display_get_update_mode( + struct omap_dss_device *dssdev) +{ + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) + return OMAP_DSS_UPDATE_AUTO; + else + return OMAP_DSS_UPDATE_DISABLED; +} + +int venc_init_display(struct omap_dss_device *dssdev) +{ + DSSDBG("init_display\n"); + + dssdev->enable = venc_enable_display; + dssdev->disable = venc_disable_display; + dssdev->suspend = venc_display_suspend; + dssdev->resume = venc_display_resume; + dssdev->get_timings = venc_get_timings; + dssdev->set_timings = venc_set_timings; + dssdev->check_timings = venc_check_timings; + dssdev->get_wss = venc_get_wss; + dssdev->set_wss = venc_set_wss; + dssdev->get_update_mode = venc_display_get_update_mode; + + return 0; +} + +void venc_dump_regs(struct seq_file *s) +{ +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r)) + + venc_enable_clocks(1); + + DUMPREG(VENC_F_CONTROL); + DUMPREG(VENC_VIDOUT_CTRL); + DUMPREG(VENC_SYNC_CTRL); + DUMPREG(VENC_LLEN); + DUMPREG(VENC_FLENS); + DUMPREG(VENC_HFLTR_CTRL); + DUMPREG(VENC_CC_CARR_WSS_CARR); + DUMPREG(VENC_C_PHASE); + DUMPREG(VENC_GAIN_U); + DUMPREG(VENC_GAIN_V); + DUMPREG(VENC_GAIN_Y); + DUMPREG(VENC_BLACK_LEVEL); + DUMPREG(VENC_BLANK_LEVEL); + DUMPREG(VENC_X_COLOR); + DUMPREG(VENC_M_CONTROL); + DUMPREG(VENC_BSTAMP_WSS_DATA); + DUMPREG(VENC_S_CARR); + DUMPREG(VENC_LINE21); + DUMPREG(VENC_LN_SEL); + DUMPREG(VENC_L21__WC_CTL); + DUMPREG(VENC_HTRIGGER_VTRIGGER); + DUMPREG(VENC_SAVID__EAVID); + DUMPREG(VENC_FLEN__FAL); + DUMPREG(VENC_LAL__PHASE_RESET); + DUMPREG(VENC_HS_INT_START_STOP_X); + DUMPREG(VENC_HS_EXT_START_STOP_X); + DUMPREG(VENC_VS_INT_START_X); + DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y); + DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X); + DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y); + DUMPREG(VENC_VS_EXT_STOP_Y); + DUMPREG(VENC_AVID_START_STOP_X); + DUMPREG(VENC_AVID_START_STOP_Y); + DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y); + DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X); + DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y); + DUMPREG(VENC_TVDETGP_INT_START_STOP_X); + DUMPREG(VENC_TVDETGP_INT_START_STOP_Y); + DUMPREG(VENC_GEN_CTRL); + DUMPREG(VENC_OUTPUT_CONTROL); + DUMPREG(VENC_OUTPUT_TEST); + + venc_enable_clocks(0); + +#undef DUMPREG +} -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 12/19] OMAP: DSS2: RFBI driver 2009-11-09 11:45 ` [PATCH 11/19] OMAP: DSS2: Video encoder driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 13/19] OMAP: DSS2: SDI driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel RFBI (Remote FrameBuffer Interface) implements MIPI DBI interface. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/rfbi.c | 1309 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 1309 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/rfbi.c diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c new file mode 100644 index 0000000..d0b3006 --- /dev/null +++ b/drivers/video/omap2/dss/rfbi.c @@ -0,0 +1,1309 @@ +/* + * linux/drivers/video/omap2/dss/rfbi.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "RFBI" + +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/vmalloc.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/kfifo.h> +#include <linux/ktime.h> +#include <linux/hrtimer.h> +#include <linux/seq_file.h> + +#include <plat/display.h> +#include "dss.h" + +/*#define MEASURE_PERF*/ + +#define RFBI_BASE 0x48050800 + +struct rfbi_reg { u16 idx; }; + +#define RFBI_REG(idx) ((const struct rfbi_reg) { idx }) + +#define RFBI_REVISION RFBI_REG(0x0000) +#define RFBI_SYSCONFIG RFBI_REG(0x0010) +#define RFBI_SYSSTATUS RFBI_REG(0x0014) +#define RFBI_CONTROL RFBI_REG(0x0040) +#define RFBI_PIXEL_CNT RFBI_REG(0x0044) +#define RFBI_LINE_NUMBER RFBI_REG(0x0048) +#define RFBI_CMD RFBI_REG(0x004c) +#define RFBI_PARAM RFBI_REG(0x0050) +#define RFBI_DATA RFBI_REG(0x0054) +#define RFBI_READ RFBI_REG(0x0058) +#define RFBI_STATUS RFBI_REG(0x005c) + +#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18) +#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18) +#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18) +#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18) +#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18) +#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18) + +#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090) +#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094) + +#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param)) + +#define REG_FLD_MOD(idx, val, start, end) \ + rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end)) + +/* To work around an RFBI transfer rate limitation */ +#define OMAP_RFBI_RATE_LIMIT 1 + +enum omap_rfbi_cycleformat { + OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0, + OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1, + OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2, + OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3, +}; + +enum omap_rfbi_datatype { + OMAP_DSS_RFBI_DATATYPE_12 = 0, + OMAP_DSS_RFBI_DATATYPE_16 = 1, + OMAP_DSS_RFBI_DATATYPE_18 = 2, + OMAP_DSS_RFBI_DATATYPE_24 = 3, +}; + +enum omap_rfbi_parallelmode { + OMAP_DSS_RFBI_PARALLELMODE_8 = 0, + OMAP_DSS_RFBI_PARALLELMODE_9 = 1, + OMAP_DSS_RFBI_PARALLELMODE_12 = 2, + OMAP_DSS_RFBI_PARALLELMODE_16 = 3, +}; + +enum update_cmd { + RFBI_CMD_UPDATE = 0, + RFBI_CMD_SYNC = 1, +}; + +static int rfbi_convert_timings(struct rfbi_timings *t); +static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div); +static void process_cmd_fifo(void); + +static struct { + void __iomem *base; + + unsigned long l4_khz; + + enum omap_rfbi_datatype datatype; + enum omap_rfbi_parallelmode parallelmode; + + enum omap_rfbi_te_mode te_mode; + int te_enabled; + + void (*framedone_callback)(void *data); + void *framedone_callback_data; + + struct omap_dss_device *dssdev[2]; + + struct kfifo *cmd_fifo; + spinlock_t cmd_lock; + struct completion cmd_done; + atomic_t cmd_fifo_full; + atomic_t cmd_pending; +#ifdef MEASURE_PERF + unsigned perf_bytes; + ktime_t perf_setup_time; + ktime_t perf_start_time; +#endif +} rfbi; + +struct update_region { + u16 x; + u16 y; + u16 w; + u16 h; +}; + +struct update_param { + u8 rfbi_module; + u8 cmd; + + union { + struct update_region r; + struct completion *sync; + } par; +}; + +static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) +{ + __raw_writel(val, rfbi.base + idx.idx); +} + +static inline u32 rfbi_read_reg(const struct rfbi_reg idx) +{ + return __raw_readl(rfbi.base + idx.idx); +} + +static void rfbi_enable_clocks(bool enable) +{ + if (enable) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + else + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +} + +void omap_rfbi_write_command(const void *buf, u32 len) +{ + rfbi_enable_clocks(1); + switch (rfbi.parallelmode) { + case OMAP_DSS_RFBI_PARALLELMODE_8: + { + const u8 *b = buf; + for (; len; len--) + rfbi_write_reg(RFBI_CMD, *b++); + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_16: + { + const u16 *w = buf; + BUG_ON(len & 1); + for (; len; len -= 2) + rfbi_write_reg(RFBI_CMD, *w++); + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_9: + case OMAP_DSS_RFBI_PARALLELMODE_12: + default: + BUG(); + } + rfbi_enable_clocks(0); +} +EXPORT_SYMBOL(omap_rfbi_write_command); + +void omap_rfbi_read_data(void *buf, u32 len) +{ + rfbi_enable_clocks(1); + switch (rfbi.parallelmode) { + case OMAP_DSS_RFBI_PARALLELMODE_8: + { + u8 *b = buf; + for (; len; len--) { + rfbi_write_reg(RFBI_READ, 0); + *b++ = rfbi_read_reg(RFBI_READ); + } + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_16: + { + u16 *w = buf; + BUG_ON(len & ~1); + for (; len; len -= 2) { + rfbi_write_reg(RFBI_READ, 0); + *w++ = rfbi_read_reg(RFBI_READ); + } + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_9: + case OMAP_DSS_RFBI_PARALLELMODE_12: + default: + BUG(); + } + rfbi_enable_clocks(0); +} +EXPORT_SYMBOL(omap_rfbi_read_data); + +void omap_rfbi_write_data(const void *buf, u32 len) +{ + rfbi_enable_clocks(1); + switch (rfbi.parallelmode) { + case OMAP_DSS_RFBI_PARALLELMODE_8: + { + const u8 *b = buf; + for (; len; len--) + rfbi_write_reg(RFBI_PARAM, *b++); + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_16: + { + const u16 *w = buf; + BUG_ON(len & 1); + for (; len; len -= 2) + rfbi_write_reg(RFBI_PARAM, *w++); + break; + } + + case OMAP_DSS_RFBI_PARALLELMODE_9: + case OMAP_DSS_RFBI_PARALLELMODE_12: + default: + BUG(); + + } + rfbi_enable_clocks(0); +} +EXPORT_SYMBOL(omap_rfbi_write_data); + +void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, + u16 x, u16 y, + u16 w, u16 h) +{ + int start_offset = scr_width * y + x; + int horiz_offset = scr_width - w; + int i; + + rfbi_enable_clocks(1); + + if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { + const u16 __iomem *pd = buf; + pd += start_offset; + + for (; h; --h) { + for (i = 0; i < w; ++i) { + const u8 __iomem *b = (const u8 __iomem *)pd; + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); + ++pd; + } + pd += horiz_offset; + } + } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 && + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { + const u32 __iomem *pd = buf; + pd += start_offset; + + for (; h; --h) { + for (i = 0; i < w; ++i) { + const u8 __iomem *b = (const u8 __iomem *)pd; + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2)); + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); + ++pd; + } + pd += horiz_offset; + } + } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) { + const u16 __iomem *pd = buf; + pd += start_offset; + + for (; h; --h) { + for (i = 0; i < w; ++i) { + rfbi_write_reg(RFBI_PARAM, __raw_readw(pd)); + ++pd; + } + pd += horiz_offset; + } + } else { + BUG(); + } + + rfbi_enable_clocks(0); +} +EXPORT_SYMBOL(omap_rfbi_write_pixels); + +#ifdef MEASURE_PERF +static void perf_mark_setup(void) +{ + rfbi.perf_setup_time = ktime_get(); +} + +static void perf_mark_start(void) +{ + rfbi.perf_start_time = ktime_get(); +} + +static void perf_show(const char *name) +{ + ktime_t t, setup_time, trans_time; + u32 total_bytes; + u32 setup_us, trans_us, total_us; + + t = ktime_get(); + + setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time); + setup_us = (u32)ktime_to_us(setup_time); + if (setup_us == 0) + setup_us = 1; + + trans_time = ktime_sub(t, rfbi.perf_start_time); + trans_us = (u32)ktime_to_us(trans_time); + if (trans_us == 0) + trans_us = 1; + + total_us = setup_us + trans_us; + + total_bytes = rfbi.perf_bytes; + + DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, " + "%u kbytes/sec\n", + name, + setup_us, + trans_us, + total_us, + 1000*1000 / total_us, + total_bytes, + total_bytes * 1000 / total_us); +} +#else +#define perf_mark_setup() +#define perf_mark_start() +#define perf_show(x) +#endif + +void rfbi_transfer_area(u16 width, u16 height, + void (callback)(void *data), void *data) +{ + u32 l; + + /*BUG_ON(callback == 0);*/ + BUG_ON(rfbi.framedone_callback != NULL); + + DSSDBG("rfbi_transfer_area %dx%d\n", width, height); + + dispc_set_lcd_size(width, height); + + dispc_enable_lcd_out(1); + + rfbi.framedone_callback = callback; + rfbi.framedone_callback_data = data; + + rfbi_enable_clocks(1); + + rfbi_write_reg(RFBI_PIXEL_CNT, width * height); + + l = rfbi_read_reg(RFBI_CONTROL); + l = FLD_MOD(l, 1, 0, 0); /* enable */ + if (!rfbi.te_enabled) + l = FLD_MOD(l, 1, 4, 4); /* ITE */ + + perf_mark_start(); + + rfbi_write_reg(RFBI_CONTROL, l); +} + +static void framedone_callback(void *data, u32 mask) +{ + void (*callback)(void *data); + + DSSDBG("FRAMEDONE\n"); + + perf_show("DISPC"); + + REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0); + + rfbi_enable_clocks(0); + + callback = rfbi.framedone_callback; + rfbi.framedone_callback = NULL; + + /*callback(rfbi.framedone_callback_data);*/ + + atomic_set(&rfbi.cmd_pending, 0); + + process_cmd_fifo(); +} + +#if 1 /* VERBOSE */ +static void rfbi_print_timings(void) +{ + u32 l; + u32 time; + + l = rfbi_read_reg(RFBI_CONFIG(0)); + time = 1000000000 / rfbi.l4_khz; + if (l & (1 << 4)) + time *= 2; + + DSSDBG("Tick time %u ps\n", time); + l = rfbi_read_reg(RFBI_ONOFF_TIME(0)); + DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, " + "REONTIME %d, REOFFTIME %d\n", + l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f, + (l >> 20) & 0x0f, (l >> 24) & 0x3f); + + l = rfbi_read_reg(RFBI_CYCLE_TIME(0)); + DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, " + "ACCESSTIME %d\n", + (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f, + (l >> 22) & 0x3f); +} +#else +static void rfbi_print_timings(void) {} +#endif + + + + +static u32 extif_clk_period; + +static inline unsigned long round_to_extif_ticks(unsigned long ps, int div) +{ + int bus_tick = extif_clk_period * div; + return (ps + bus_tick - 1) / bus_tick * bus_tick; +} + +static int calc_reg_timing(struct rfbi_timings *t, int div) +{ + t->clk_div = div; + + t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div); + + t->we_on_time = round_to_extif_ticks(t->we_on_time, div); + t->we_off_time = round_to_extif_ticks(t->we_off_time, div); + t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div); + + t->re_on_time = round_to_extif_ticks(t->re_on_time, div); + t->re_off_time = round_to_extif_ticks(t->re_off_time, div); + t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div); + + t->access_time = round_to_extif_ticks(t->access_time, div); + t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div); + t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div); + + DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n", + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); + DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n", + t->we_on_time, t->we_off_time, t->re_cycle_time, + t->we_cycle_time); + DSSDBG("[reg]rdaccess %d cspulse %d\n", + t->access_time, t->cs_pulse_width); + + return rfbi_convert_timings(t); +} + +static int calc_extif_timings(struct rfbi_timings *t) +{ + u32 max_clk_div; + int div; + + rfbi_get_clk_info(&extif_clk_period, &max_clk_div); + for (div = 1; div <= max_clk_div; div++) { + if (calc_reg_timing(t, div) == 0) + break; + } + + if (div <= max_clk_div) + return 0; + + DSSERR("can't setup timings\n"); + return -1; +} + + +void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t) +{ + int r; + + if (!t->converted) { + r = calc_extif_timings(t); + if (r < 0) + DSSERR("Failed to calc timings\n"); + } + + BUG_ON(!t->converted); + + rfbi_enable_clocks(1); + rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]); + rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]); + + /* TIMEGRANULARITY */ + REG_FLD_MOD(RFBI_CONFIG(rfbi_module), + (t->tim[2] ? 1 : 0), 4, 4); + + rfbi_print_timings(); + rfbi_enable_clocks(0); +} + +static int ps_to_rfbi_ticks(int time, int div) +{ + unsigned long tick_ps; + int ret; + + /* Calculate in picosecs to yield more exact results */ + tick_ps = 1000000000 / (rfbi.l4_khz) * div; + + ret = (time + tick_ps - 1) / tick_ps; + + return ret; +} + +#ifdef OMAP_RFBI_RATE_LIMIT +unsigned long rfbi_get_max_tx_rate(void) +{ + unsigned long l4_rate, dss1_rate; + int min_l4_ticks = 0; + int i; + + /* According to TI this can't be calculated so make the + * adjustments for a couple of known frequencies and warn for + * others. + */ + static const struct { + unsigned long l4_clk; /* HZ */ + unsigned long dss1_clk; /* HZ */ + unsigned long min_l4_ticks; + } ftab[] = { + { 55, 132, 7, }, /* 7.86 MPix/s */ + { 110, 110, 12, }, /* 9.16 MPix/s */ + { 110, 132, 10, }, /* 11 Mpix/s */ + { 120, 120, 10, }, /* 12 Mpix/s */ + { 133, 133, 10, }, /* 13.3 Mpix/s */ + }; + + l4_rate = rfbi.l4_khz / 1000; + dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000; + + for (i = 0; i < ARRAY_SIZE(ftab); i++) { + /* Use a window instead of an exact match, to account + * for different DPLL multiplier / divider pairs. + */ + if (abs(ftab[i].l4_clk - l4_rate) < 3 && + abs(ftab[i].dss1_clk - dss1_rate) < 3) { + min_l4_ticks = ftab[i].min_l4_ticks; + break; + } + } + if (i == ARRAY_SIZE(ftab)) { + /* Can't be sure, return anyway the maximum not + * rate-limited. This might cause a problem only for the + * tearing synchronisation. + */ + DSSERR("can't determine maximum RFBI transfer rate\n"); + return rfbi.l4_khz * 1000; + } + return rfbi.l4_khz * 1000 / min_l4_ticks; +} +#else +int rfbi_get_max_tx_rate(void) +{ + return rfbi.l4_khz * 1000; +} +#endif + +static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div) +{ + *clk_period = 1000000000 / rfbi.l4_khz; + *max_clk_div = 2; +} + +static int rfbi_convert_timings(struct rfbi_timings *t) +{ + u32 l; + int reon, reoff, weon, weoff, cson, csoff, cs_pulse; + int actim, recyc, wecyc; + int div = t->clk_div; + + if (div <= 0 || div > 2) + return -1; + + /* Make sure that after conversion it still holds that: + * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff, + * csoff > cson, csoff >= max(weoff, reoff), actim > reon + */ + weon = ps_to_rfbi_ticks(t->we_on_time, div); + weoff = ps_to_rfbi_ticks(t->we_off_time, div); + if (weoff <= weon) + weoff = weon + 1; + if (weon > 0x0f) + return -1; + if (weoff > 0x3f) + return -1; + + reon = ps_to_rfbi_ticks(t->re_on_time, div); + reoff = ps_to_rfbi_ticks(t->re_off_time, div); + if (reoff <= reon) + reoff = reon + 1; + if (reon > 0x0f) + return -1; + if (reoff > 0x3f) + return -1; + + cson = ps_to_rfbi_ticks(t->cs_on_time, div); + csoff = ps_to_rfbi_ticks(t->cs_off_time, div); + if (csoff <= cson) + csoff = cson + 1; + if (csoff < max(weoff, reoff)) + csoff = max(weoff, reoff); + if (cson > 0x0f) + return -1; + if (csoff > 0x3f) + return -1; + + l = cson; + l |= csoff << 4; + l |= weon << 10; + l |= weoff << 14; + l |= reon << 20; + l |= reoff << 24; + + t->tim[0] = l; + + actim = ps_to_rfbi_ticks(t->access_time, div); + if (actim <= reon) + actim = reon + 1; + if (actim > 0x3f) + return -1; + + wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div); + if (wecyc < weoff) + wecyc = weoff; + if (wecyc > 0x3f) + return -1; + + recyc = ps_to_rfbi_ticks(t->re_cycle_time, div); + if (recyc < reoff) + recyc = reoff; + if (recyc > 0x3f) + return -1; + + cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div); + if (cs_pulse > 0x3f) + return -1; + + l = wecyc; + l |= recyc << 6; + l |= cs_pulse << 12; + l |= actim << 22; + + t->tim[1] = l; + + t->tim[2] = div - 1; + + t->converted = 1; + + return 0; +} + +/* xxx FIX module selection missing */ +int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, + unsigned hs_pulse_time, unsigned vs_pulse_time, + int hs_pol_inv, int vs_pol_inv, int extif_div) +{ + int hs, vs; + int min; + u32 l; + + hs = ps_to_rfbi_ticks(hs_pulse_time, 1); + vs = ps_to_rfbi_ticks(vs_pulse_time, 1); + if (hs < 2) + return -EDOM; + if (mode == OMAP_DSS_RFBI_TE_MODE_2) + min = 2; + else /* OMAP_DSS_RFBI_TE_MODE_1 */ + min = 4; + if (vs < min) + return -EDOM; + if (vs == hs) + return -EINVAL; + rfbi.te_mode = mode; + DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n", + mode, hs, vs, hs_pol_inv, vs_pol_inv); + + rfbi_enable_clocks(1); + rfbi_write_reg(RFBI_HSYNC_WIDTH, hs); + rfbi_write_reg(RFBI_VSYNC_WIDTH, vs); + + l = rfbi_read_reg(RFBI_CONFIG(0)); + if (hs_pol_inv) + l &= ~(1 << 21); + else + l |= 1 << 21; + if (vs_pol_inv) + l &= ~(1 << 20); + else + l |= 1 << 20; + rfbi_enable_clocks(0); + + return 0; +} +EXPORT_SYMBOL(omap_rfbi_setup_te); + +/* xxx FIX module selection missing */ +int omap_rfbi_enable_te(bool enable, unsigned line) +{ + u32 l; + + DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode); + if (line > (1 << 11) - 1) + return -EINVAL; + + rfbi_enable_clocks(1); + l = rfbi_read_reg(RFBI_CONFIG(0)); + l &= ~(0x3 << 2); + if (enable) { + rfbi.te_enabled = 1; + l |= rfbi.te_mode << 2; + } else + rfbi.te_enabled = 0; + rfbi_write_reg(RFBI_CONFIG(0), l); + rfbi_write_reg(RFBI_LINE_NUMBER, line); + rfbi_enable_clocks(0); + + return 0; +} +EXPORT_SYMBOL(omap_rfbi_enable_te); + +#if 0 +static void rfbi_enable_config(int enable1, int enable2) +{ + u32 l; + int cs = 0; + + if (enable1) + cs |= 1<<0; + if (enable2) + cs |= 1<<1; + + rfbi_enable_clocks(1); + + l = rfbi_read_reg(RFBI_CONTROL); + + l = FLD_MOD(l, cs, 3, 2); + l = FLD_MOD(l, 0, 1, 1); + + rfbi_write_reg(RFBI_CONTROL, l); + + + l = rfbi_read_reg(RFBI_CONFIG(0)); + l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */ + /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ + /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */ + + l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */ + l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */ + l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */ + + l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0); + rfbi_write_reg(RFBI_CONFIG(0), l); + + rfbi_enable_clocks(0); +} +#endif + +int rfbi_configure(int rfbi_module, int bpp, int lines) +{ + u32 l; + int cycle1 = 0, cycle2 = 0, cycle3 = 0; + enum omap_rfbi_cycleformat cycleformat; + enum omap_rfbi_datatype datatype; + enum omap_rfbi_parallelmode parallelmode; + + switch (bpp) { + case 12: + datatype = OMAP_DSS_RFBI_DATATYPE_12; + break; + case 16: + datatype = OMAP_DSS_RFBI_DATATYPE_16; + break; + case 18: + datatype = OMAP_DSS_RFBI_DATATYPE_18; + break; + case 24: + datatype = OMAP_DSS_RFBI_DATATYPE_24; + break; + default: + BUG(); + return 1; + } + rfbi.datatype = datatype; + + switch (lines) { + case 8: + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8; + break; + case 9: + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9; + break; + case 12: + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12; + break; + case 16: + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16; + break; + default: + BUG(); + return 1; + } + rfbi.parallelmode = parallelmode; + + if ((bpp % lines) == 0) { + switch (bpp / lines) { + case 1: + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1; + break; + case 2: + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1; + break; + case 3: + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1; + break; + default: + BUG(); + return 1; + } + } else if ((2 * bpp % lines) == 0) { + if ((2 * bpp / lines) == 3) + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2; + else { + BUG(); + return 1; + } + } else { + BUG(); + return 1; + } + + switch (cycleformat) { + case OMAP_DSS_RFBI_CYCLEFORMAT_1_1: + cycle1 = lines; + break; + + case OMAP_DSS_RFBI_CYCLEFORMAT_2_1: + cycle1 = lines; + cycle2 = lines; + break; + + case OMAP_DSS_RFBI_CYCLEFORMAT_3_1: + cycle1 = lines; + cycle2 = lines; + cycle3 = lines; + break; + + case OMAP_DSS_RFBI_CYCLEFORMAT_3_2: + cycle1 = lines; + cycle2 = (lines / 2) | ((lines / 2) << 16); + cycle3 = (lines << 16); + break; + } + + rfbi_enable_clocks(1); + + REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */ + + l = 0; + l |= FLD_VAL(parallelmode, 1, 0); + l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */ + l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */ + l |= FLD_VAL(datatype, 6, 5); + /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ + l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */ + l |= FLD_VAL(cycleformat, 10, 9); + l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */ + l |= FLD_VAL(0, 16, 16); /* A0POLARITY */ + l |= FLD_VAL(0, 17, 17); /* REPOLARITY */ + l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */ + l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */ + l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */ + l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */ + rfbi_write_reg(RFBI_CONFIG(rfbi_module), l); + + rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1); + rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2); + rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3); + + + l = rfbi_read_reg(RFBI_CONTROL); + l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */ + l = FLD_MOD(l, 0, 1, 1); /* clear bypass */ + rfbi_write_reg(RFBI_CONTROL, l); + + + DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n", + bpp, lines, cycle1, cycle2, cycle3); + + rfbi_enable_clocks(0); + + return 0; +} +EXPORT_SYMBOL(rfbi_configure); + +static int rfbi_find_display(struct omap_dss_device *dssdev) +{ + if (dssdev == rfbi.dssdev[0]) + return 0; + + if (dssdev == rfbi.dssdev[1]) + return 1; + + BUG(); + return -1; +} + + +static void signal_fifo_waiters(void) +{ + if (atomic_read(&rfbi.cmd_fifo_full) > 0) { + /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */ + complete(&rfbi.cmd_done); + atomic_dec(&rfbi.cmd_fifo_full); + } +} + +/* returns 1 for async op, and 0 for sync op */ +static int do_update(struct omap_dss_device *dssdev, struct update_region *upd) +{ + u16 x = upd->x; + u16 y = upd->y; + u16 w = upd->w; + u16 h = upd->h; + + perf_mark_setup(); + + if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { + /*dssdev->driver->enable_te(dssdev, 1); */ + dss_setup_partial_planes(dssdev, &x, &y, &w, &h); + } + +#ifdef MEASURE_PERF + rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */ +#endif + + dssdev->driver->setup_update(dssdev, x, y, w, h); + + if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { + rfbi_transfer_area(w, h, NULL, NULL); + return 1; + } else { + struct omap_overlay *ovl; + void __iomem *addr; + int scr_width; + + ovl = dssdev->manager->overlays[0]; + scr_width = ovl->info.screen_width; + addr = ovl->info.vaddr; + + omap_rfbi_write_pixels(addr, scr_width, x, y, w, h); + + perf_show("L4"); + + return 0; + } +} + +static void process_cmd_fifo(void) +{ + int len; + struct update_param p; + struct omap_dss_device *dssdev; + unsigned long flags; + + if (atomic_inc_return(&rfbi.cmd_pending) != 1) + return; + + while (true) { + spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); + + len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p, + sizeof(struct update_param)); + if (len == 0) { + DSSDBG("nothing more in fifo\n"); + atomic_set(&rfbi.cmd_pending, 0); + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); + break; + } + + /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/ + + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); + + BUG_ON(len != sizeof(struct update_param)); + BUG_ON(p.rfbi_module > 1); + + dssdev = rfbi.dssdev[p.rfbi_module]; + + if (p.cmd == RFBI_CMD_UPDATE) { + if (do_update(dssdev, &p.par.r)) + break; /* async op */ + } else if (p.cmd == RFBI_CMD_SYNC) { + DSSDBG("Signaling SYNC done!\n"); + complete(p.par.sync); + } else + BUG(); + } + + signal_fifo_waiters(); +} + +static void rfbi_push_cmd(struct update_param *p) +{ + int ret; + + while (1) { + unsigned long flags; + int available; + + spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); + available = RFBI_CMD_FIFO_LEN_BYTES - + __kfifo_len(rfbi.cmd_fifo); + +/* DSSDBG("%d bytes left in fifo\n", available); */ + if (available < sizeof(struct update_param)) { + DSSDBG("Going to wait because FIFO FULL..\n"); + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); + atomic_inc(&rfbi.cmd_fifo_full); + wait_for_completion(&rfbi.cmd_done); + /*DSSDBG("Woke up because fifo not full anymore\n");*/ + continue; + } + + ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p, + sizeof(struct update_param)); +/* DSSDBG("pushed %d bytes\n", ret);*/ + + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); + + BUG_ON(ret != sizeof(struct update_param)); + + break; + } +} + +static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h) +{ + struct update_param p; + + p.rfbi_module = rfbi_module; + p.cmd = RFBI_CMD_UPDATE; + + p.par.r.x = x; + p.par.r.y = y; + p.par.r.w = w; + p.par.r.h = h; + + DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h); + + rfbi_push_cmd(&p); + + process_cmd_fifo(); +} + +static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp) +{ + struct update_param p; + + p.rfbi_module = rfbi_module; + p.cmd = RFBI_CMD_SYNC; + p.par.sync = sync_comp; + + rfbi_push_cmd(&p); + + DSSDBG("RFBI sync pushed to cmd fifo\n"); + + process_cmd_fifo(); +} + +void rfbi_dump_regs(struct seq_file *s) +{ +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + DUMPREG(RFBI_REVISION); + DUMPREG(RFBI_SYSCONFIG); + DUMPREG(RFBI_SYSSTATUS); + DUMPREG(RFBI_CONTROL); + DUMPREG(RFBI_PIXEL_CNT); + DUMPREG(RFBI_LINE_NUMBER); + DUMPREG(RFBI_CMD); + DUMPREG(RFBI_PARAM); + DUMPREG(RFBI_DATA); + DUMPREG(RFBI_READ); + DUMPREG(RFBI_STATUS); + + DUMPREG(RFBI_CONFIG(0)); + DUMPREG(RFBI_ONOFF_TIME(0)); + DUMPREG(RFBI_CYCLE_TIME(0)); + DUMPREG(RFBI_DATA_CYCLE1(0)); + DUMPREG(RFBI_DATA_CYCLE2(0)); + DUMPREG(RFBI_DATA_CYCLE3(0)); + + DUMPREG(RFBI_CONFIG(1)); + DUMPREG(RFBI_ONOFF_TIME(1)); + DUMPREG(RFBI_CYCLE_TIME(1)); + DUMPREG(RFBI_DATA_CYCLE1(1)); + DUMPREG(RFBI_DATA_CYCLE2(1)); + DUMPREG(RFBI_DATA_CYCLE3(1)); + + DUMPREG(RFBI_VSYNC_WIDTH); + DUMPREG(RFBI_HSYNC_WIDTH); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +#undef DUMPREG +} + +int rfbi_init(void) +{ + u32 rev; + u32 l; + + spin_lock_init(&rfbi.cmd_lock); + rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL, + &rfbi.cmd_lock); + if (IS_ERR(rfbi.cmd_fifo)) + return -ENOMEM; + + init_completion(&rfbi.cmd_done); + atomic_set(&rfbi.cmd_fifo_full, 0); + atomic_set(&rfbi.cmd_pending, 0); + + rfbi.base = ioremap(RFBI_BASE, SZ_256); + if (!rfbi.base) { + DSSERR("can't ioremap RFBI\n"); + return -ENOMEM; + } + + rfbi_enable_clocks(1); + + msleep(10); + + rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000; + + /* Enable autoidle and smart-idle */ + l = rfbi_read_reg(RFBI_SYSCONFIG); + l |= (1 << 0) | (2 << 3); + rfbi_write_reg(RFBI_SYSCONFIG, l); + + rev = rfbi_read_reg(RFBI_REVISION); + printk(KERN_INFO "OMAP RFBI rev %d.%d\n", + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); + + rfbi_enable_clocks(0); + + return 0; +} + +void rfbi_exit(void) +{ + DSSDBG("rfbi_exit\n"); + + kfifo_free(rfbi.cmd_fifo); + + iounmap(rfbi.base); +} + +/* struct omap_display support */ +static int rfbi_display_update(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h) +{ + int rfbi_module; + + if (w == 0 || h == 0) + return 0; + + rfbi_module = rfbi_find_display(dssdev); + + rfbi_push_update(rfbi_module, x, y, w, h); + + return 0; +} + +static int rfbi_display_sync(struct omap_dss_device *dssdev) +{ + struct completion sync_comp; + int rfbi_module; + + rfbi_module = rfbi_find_display(dssdev); + + init_completion(&sync_comp); + rfbi_push_sync(rfbi_module, &sync_comp); + DSSDBG("Waiting for SYNC to happen...\n"); + wait_for_completion(&sync_comp); + DSSDBG("Released from SYNC\n"); + return 0; +} + +static int rfbi_display_enable_te(struct omap_dss_device *dssdev, bool enable) +{ + dssdev->driver->enable_te(dssdev, enable); + return 0; +} + +static int rfbi_display_enable(struct omap_dss_device *dssdev) +{ + int r; + + r = omap_dss_start_device(dssdev); + if (r) { + DSSERR("failed to start device\n"); + goto err0; + } + + r = omap_dispc_register_isr(framedone_callback, NULL, + DISPC_IRQ_FRAMEDONE); + if (r) { + DSSERR("can't get FRAMEDONE irq\n"); + goto err1; + } + + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); + + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI); + + dispc_set_tft_data_lines(dssdev->ctrl.pixel_size); + + rfbi_configure(dssdev->phy.rfbi.channel, + dssdev->ctrl.pixel_size, + dssdev->phy.rfbi.data_lines); + + rfbi_set_timings(dssdev->phy.rfbi.channel, + &dssdev->ctrl.rfbi_timings); + + + if (dssdev->driver->enable) { + r = dssdev->driver->enable(dssdev); + if (r) + goto err2; + } + + return 0; +err2: + omap_dispc_unregister_isr(framedone_callback, NULL, + DISPC_IRQ_FRAMEDONE); +err1: + omap_dss_stop_device(dssdev); +err0: + return r; +} + +static void rfbi_display_disable(struct omap_dss_device *dssdev) +{ + dssdev->driver->disable(dssdev); + omap_dispc_unregister_isr(framedone_callback, NULL, + DISPC_IRQ_FRAMEDONE); + omap_dss_stop_device(dssdev); +} + +int rfbi_init_display(struct omap_dss_device *dssdev) +{ + dssdev->enable = rfbi_display_enable; + dssdev->disable = rfbi_display_disable; + dssdev->update = rfbi_display_update; + dssdev->sync = rfbi_display_sync; + dssdev->enable_te = rfbi_display_enable_te; + + rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev; + + dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; + + return 0; +} -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 13/19] OMAP: DSS2: SDI driver 2009-11-09 11:45 ` [PATCH 12/19] OMAP: DSS2: RFBI driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 14/19] OMAP: DSS2: DSI driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel, Tomi Valkeinen SDI (Serial Display Interface) implements TI Flatlink 3G display interface. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/sdi.c | 277 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 277 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/sdi.c diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c new file mode 100644 index 0000000..c24f307 --- /dev/null +++ b/drivers/video/omap2/dss/sdi.c @@ -0,0 +1,277 @@ +/* + * linux/drivers/video/omap2/dss/sdi.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "SDI" + +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> + +#include <plat/display.h> +#include "dss.h" + +static struct { + bool skip_init; + bool update_enabled; +} sdi; + +static void sdi_basic_init(void) +{ + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); + + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); + dispc_set_tft_data_lines(24); + dispc_lcd_enable_signal_polarity(1); +} + +static int sdi_display_enable(struct omap_dss_device *dssdev) +{ + struct omap_video_timings *t = &dssdev->panel.timings; + struct dss_clock_info dss_cinfo; + struct dispc_clock_info dispc_cinfo; + u16 lck_div, pck_div; + unsigned long fck; + unsigned long pck; + int r; + + r = omap_dss_start_device(dssdev); + if (r) { + DSSERR("failed to start device\n"); + goto err0; + } + + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { + DSSERR("dssdev already enabled\n"); + r = -EINVAL; + goto err1; + } + + /* In case of skip_init sdi_init has already enabled the clocks */ + if (!sdi.skip_init) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + sdi_basic_init(); + + /* 15.5.9.1.2 */ + dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF; + + dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi, + dssdev->panel.acb); + + if (!sdi.skip_init) { + r = dss_calc_clock_div(1, t->pixel_clock * 1000, + &dss_cinfo, &dispc_cinfo); + } else { + r = dss_get_clock_div(&dss_cinfo); + r = dispc_get_clock_div(&dispc_cinfo); + } + + if (r) + goto err2; + + fck = dss_cinfo.fck; + lck_div = dispc_cinfo.lck_div; + pck_div = dispc_cinfo.pck_div; + + pck = fck / lck_div / pck_div / 1000; + + if (pck != t->pixel_clock) { + DSSWARN("Could not find exact pixel clock. Requested %d kHz, " + "got %lu kHz\n", + t->pixel_clock, pck); + + t->pixel_clock = pck; + } + + + dispc_set_lcd_timings(t); + + r = dss_set_clock_div(&dss_cinfo); + if (r) + goto err2; + + r = dispc_set_clock_div(&dispc_cinfo); + if (r) + goto err2; + + if (!sdi.skip_init) { + dss_sdi_init(dssdev->phy.sdi.datapairs); + r = dss_sdi_enable(); + if (r) + goto err1; + mdelay(2); + } + + dispc_enable_lcd_out(1); + + if (dssdev->driver->enable) { + r = dssdev->driver->enable(dssdev); + if (r) + goto err3; + } + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + sdi.skip_init = 0; + + return 0; +err3: + dispc_enable_lcd_out(0); +err2: + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +err1: + omap_dss_stop_device(dssdev); +err0: + return r; +} + +static int sdi_display_resume(struct omap_dss_device *dssdev); + +static void sdi_display_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) + return; + + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) + if (sdi_display_resume(dssdev)) + return; + + if (dssdev->driver->disable) + dssdev->driver->disable(dssdev); + + dispc_enable_lcd_out(0); + + dss_sdi_disable(); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; + + omap_dss_stop_device(dssdev); +} + +static int sdi_display_suspend(struct omap_dss_device *dssdev) +{ + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return -EINVAL; + + if (dssdev->driver->suspend) + dssdev->driver->suspend(dssdev); + + dispc_enable_lcd_out(0); + + dss_sdi_disable(); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; + + return 0; +} + +static int sdi_display_resume(struct omap_dss_device *dssdev) +{ + int r; + + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) + return -EINVAL; + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + r = dss_sdi_enable(); + if (r) + goto err; + mdelay(2); + + dispc_enable_lcd_out(1); + + if (dssdev->driver->resume) + dssdev->driver->resume(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +err: + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + return r; +} + +static int sdi_display_set_update_mode(struct omap_dss_device *dssdev, + enum omap_dss_update_mode mode) +{ + if (mode == OMAP_DSS_UPDATE_MANUAL) + return -EINVAL; + + if (mode == OMAP_DSS_UPDATE_DISABLED) { + dispc_enable_lcd_out(0); + sdi.update_enabled = 0; + } else { + dispc_enable_lcd_out(1); + sdi.update_enabled = 1; + } + + return 0; +} + +static enum omap_dss_update_mode sdi_display_get_update_mode( + struct omap_dss_device *dssdev) +{ + return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO : + OMAP_DSS_UPDATE_DISABLED; +} + +static void sdi_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +int sdi_init_display(struct omap_dss_device *dssdev) +{ + DSSDBG("SDI init\n"); + + dssdev->enable = sdi_display_enable; + dssdev->disable = sdi_display_disable; + dssdev->suspend = sdi_display_suspend; + dssdev->resume = sdi_display_resume; + dssdev->set_update_mode = sdi_display_set_update_mode; + dssdev->get_update_mode = sdi_display_get_update_mode; + dssdev->get_timings = sdi_get_timings; + + return 0; +} + +int sdi_init(bool skip_init) +{ + /* we store this for first display enable, then clear it */ + sdi.skip_init = skip_init; + + /* + * Enable clocks already here, otherwise there would be a toggle + * of them until sdi_display_enable is called. + */ + if (skip_init) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + return 0; +} + +void sdi_exit(void) +{ +} -- 1.6.5.1 ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 14/19] OMAP: DSS2: DSI driver 2009-11-09 11:45 ` [PATCH 13/19] OMAP: DSS2: SDI driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 15/19] OMAP: DSS2: omapfb driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel DSI (Display Serial Interface) driver implements MIPI DSI interface. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/dss/dsi.c | 3708 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 3708 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/dsi.c diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c new file mode 100644 index 0000000..ce93a22 --- /dev/null +++ b/drivers/video/omap2/dss/dsi.c @@ -0,0 +1,3708 @@ +/* + * linux/drivers/video/omap2/dss/dsi.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DSI" + +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/mutex.h> +#include <linux/seq_file.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> +#include <linux/kthread.h> +#include <linux/wait.h> + +#include <plat/display.h> +#include <plat/clock.h> + +#include "dss.h" + +/*#define VERBOSE_IRQ*/ +#define DSI_CATCH_MISSING_TE + +#define DSI_BASE 0x4804FC00 + +struct dsi_reg { u16 idx; }; + +#define DSI_REG(idx) ((const struct dsi_reg) { idx }) + +#define DSI_SZ_REGS SZ_1K +/* DSI Protocol Engine */ + +#define DSI_REVISION DSI_REG(0x0000) +#define DSI_SYSCONFIG DSI_REG(0x0010) +#define DSI_SYSSTATUS DSI_REG(0x0014) +#define DSI_IRQSTATUS DSI_REG(0x0018) +#define DSI_IRQENABLE DSI_REG(0x001C) +#define DSI_CTRL DSI_REG(0x0040) +#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048) +#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C) +#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050) +#define DSI_CLK_CTRL DSI_REG(0x0054) +#define DSI_TIMING1 DSI_REG(0x0058) +#define DSI_TIMING2 DSI_REG(0x005C) +#define DSI_VM_TIMING1 DSI_REG(0x0060) +#define DSI_VM_TIMING2 DSI_REG(0x0064) +#define DSI_VM_TIMING3 DSI_REG(0x0068) +#define DSI_CLK_TIMING DSI_REG(0x006C) +#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070) +#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074) +#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078) +#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C) +#define DSI_VM_TIMING4 DSI_REG(0x0080) +#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084) +#define DSI_VM_TIMING5 DSI_REG(0x0088) +#define DSI_VM_TIMING6 DSI_REG(0x008C) +#define DSI_VM_TIMING7 DSI_REG(0x0090) +#define DSI_STOPCLK_TIMING DSI_REG(0x0094) +#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20)) +#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20)) +#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20)) +#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20)) +#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20)) +#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20)) +#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20)) + +/* DSIPHY_SCP */ + +#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000) +#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004) +#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008) +#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014) + +/* DSI_PLL_CTRL_SCP */ + +#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000) +#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004) +#define DSI_PLL_GO DSI_REG(0x300 + 0x0008) +#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C) +#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010) + +#define REG_GET(idx, start, end) \ + FLD_GET(dsi_read_reg(idx), start, end) + +#define REG_FLD_MOD(idx, val, start, end) \ + dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end)) + +/* Global interrupts */ +#define DSI_IRQ_VC0 (1 << 0) +#define DSI_IRQ_VC1 (1 << 1) +#define DSI_IRQ_VC2 (1 << 2) +#define DSI_IRQ_VC3 (1 << 3) +#define DSI_IRQ_WAKEUP (1 << 4) +#define DSI_IRQ_RESYNC (1 << 5) +#define DSI_IRQ_PLL_LOCK (1 << 7) +#define DSI_IRQ_PLL_UNLOCK (1 << 8) +#define DSI_IRQ_PLL_RECALL (1 << 9) +#define DSI_IRQ_COMPLEXIO_ERR (1 << 10) +#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14) +#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15) +#define DSI_IRQ_TE_TRIGGER (1 << 16) +#define DSI_IRQ_ACK_TRIGGER (1 << 17) +#define DSI_IRQ_SYNC_LOST (1 << 18) +#define DSI_IRQ_LDO_POWER_GOOD (1 << 19) +#define DSI_IRQ_TA_TIMEOUT (1 << 20) +#define DSI_IRQ_ERROR_MASK \ + (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \ + DSI_IRQ_TA_TIMEOUT) +#define DSI_IRQ_CHANNEL_MASK 0xf + +/* Virtual channel interrupts */ +#define DSI_VC_IRQ_CS (1 << 0) +#define DSI_VC_IRQ_ECC_CORR (1 << 1) +#define DSI_VC_IRQ_PACKET_SENT (1 << 2) +#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3) +#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4) +#define DSI_VC_IRQ_BTA (1 << 5) +#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6) +#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7) +#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8) +#define DSI_VC_IRQ_ERROR_MASK \ + (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \ + DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \ + DSI_VC_IRQ_FIFO_TX_UDF) + +/* ComplexIO interrupts */ +#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0) +#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1) +#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2) +#define DSI_CIO_IRQ_ERRESC1 (1 << 5) +#define DSI_CIO_IRQ_ERRESC2 (1 << 6) +#define DSI_CIO_IRQ_ERRESC3 (1 << 7) +#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10) +#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11) +#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12) +#define DSI_CIO_IRQ_STATEULPS1 (1 << 15) +#define DSI_CIO_IRQ_STATEULPS2 (1 << 16) +#define DSI_CIO_IRQ_STATEULPS3 (1 << 17) +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20) +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21) +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22) +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23) +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24) +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25) +#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30) +#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31) + +#define DSI_DT_DCS_SHORT_WRITE_0 0x05 +#define DSI_DT_DCS_SHORT_WRITE_1 0x15 +#define DSI_DT_DCS_READ 0x06 +#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37 +#define DSI_DT_NULL_PACKET 0x09 +#define DSI_DT_DCS_LONG_WRITE 0x39 + +#define DSI_DT_RX_ACK_WITH_ERR 0x02 +#define DSI_DT_RX_DCS_LONG_READ 0x1c +#define DSI_DT_RX_SHORT_READ_1 0x21 +#define DSI_DT_RX_SHORT_READ_2 0x22 + +#define FINT_MAX 2100000 +#define FINT_MIN 750000 +#define REGN_MAX (1 << 7) +#define REGM_MAX ((1 << 11) - 1) +#define REGM3_MAX (1 << 4) +#define REGM4_MAX (1 << 4) +#define LP_DIV_MAX ((1 << 13) - 1) + +enum fifo_size { + DSI_FIFO_SIZE_0 = 0, + DSI_FIFO_SIZE_32 = 1, + DSI_FIFO_SIZE_64 = 2, + DSI_FIFO_SIZE_96 = 3, + DSI_FIFO_SIZE_128 = 4, +}; + +enum dsi_vc_mode { + DSI_VC_MODE_L4 = 0, + DSI_VC_MODE_VP, +}; + +struct dsi_update_region { + bool dirty; + u16 x, y, w, h; + struct omap_dss_device *device; +}; + +static struct +{ + void __iomem *base; + + struct dsi_clock_info current_cinfo; + + struct regulator *vdds_dsi_reg; + + struct { + enum dsi_vc_mode mode; + struct omap_dss_device *dssdev; + enum fifo_size fifo_size; + int dest_per; /* destination peripheral 0-3 */ + } vc[4]; + + struct mutex lock; + struct mutex bus_lock; + + unsigned pll_locked; + + struct completion bta_completion; + + struct task_struct *thread; + wait_queue_head_t waitqueue; + + spinlock_t update_lock; + bool framedone_received; + struct dsi_update_region update_region; + struct dsi_update_region active_update_region; + struct completion update_completion; + + enum omap_dss_update_mode user_update_mode; + enum omap_dss_update_mode update_mode; + bool te_enabled; + bool use_ext_te; + +#ifdef DSI_CATCH_MISSING_TE + struct timer_list te_timer; +#endif + + unsigned long cache_req_pck; + unsigned long cache_clk_freq; + struct dsi_clock_info cache_cinfo; + + u32 errors; + spinlock_t errors_lock; +#ifdef DEBUG + ktime_t perf_setup_time; + ktime_t perf_start_time; + ktime_t perf_start_time_auto; + int perf_measure_frames; +#endif + int debug_read; + int debug_write; +} dsi; + +#ifdef DEBUG +static unsigned int dsi_perf; +module_param_named(dsi_perf, dsi_perf, bool, 0644); +#endif + +static inline void dsi_write_reg(const struct dsi_reg idx, u32 val) +{ + __raw_writel(val, dsi.base + idx.idx); +} + +static inline u32 dsi_read_reg(const struct dsi_reg idx) +{ + return __raw_readl(dsi.base + idx.idx); +} + + +void dsi_save_context(void) +{ +} + +void dsi_restore_context(void) +{ +} + +void dsi_bus_lock(void) +{ + mutex_lock(&dsi.bus_lock); +} +EXPORT_SYMBOL(dsi_bus_lock); + +void dsi_bus_unlock(void) +{ + mutex_unlock(&dsi.bus_lock); +} +EXPORT_SYMBOL(dsi_bus_unlock); + +static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum, + int value) +{ + int t = 100000; + + while (REG_GET(idx, bitnum, bitnum) != value) { + if (--t == 0) + return !value; + } + + return value; +} + +#ifdef DEBUG +static void dsi_perf_mark_setup(void) +{ + dsi.perf_setup_time = ktime_get(); +} + +static void dsi_perf_mark_start(void) +{ + dsi.perf_start_time = ktime_get(); +} + +static void dsi_perf_mark_start_auto(void) +{ + dsi.perf_measure_frames = 0; + dsi.perf_start_time_auto = ktime_get(); +} + +static void dsi_perf_show(const char *name) +{ + ktime_t t, setup_time, trans_time; + u32 total_bytes; + u32 setup_us, trans_us, total_us; + + if (!dsi_perf) + return; + + if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) + return; + + t = ktime_get(); + + setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time); + setup_us = (u32)ktime_to_us(setup_time); + if (setup_us == 0) + setup_us = 1; + + trans_time = ktime_sub(t, dsi.perf_start_time); + trans_us = (u32)ktime_to_us(trans_time); + if (trans_us == 0) + trans_us = 1; + + total_us = setup_us + trans_us; + + total_bytes = dsi.active_update_region.w * + dsi.active_update_region.h * + dsi.active_update_region.device->ctrl.pixel_size / 8; + + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { + static u32 s_total_trans_us, s_total_setup_us; + static u32 s_min_trans_us = 0xffffffff, s_min_setup_us; + static u32 s_max_trans_us, s_max_setup_us; + const int numframes = 100; + ktime_t total_time_auto; + u32 total_time_auto_us; + + dsi.perf_measure_frames++; + + if (setup_us < s_min_setup_us) + s_min_setup_us = setup_us; + + if (setup_us > s_max_setup_us) + s_max_setup_us = setup_us; + + s_total_setup_us += setup_us; + + if (trans_us < s_min_trans_us) + s_min_trans_us = trans_us; + + if (trans_us > s_max_trans_us) + s_max_trans_us = trans_us; + + s_total_trans_us += trans_us; + + if (dsi.perf_measure_frames < numframes) + return; + + total_time_auto = ktime_sub(t, dsi.perf_start_time_auto); + total_time_auto_us = (u32)ktime_to_us(total_time_auto); + + printk(KERN_INFO "DSI(%s): %u fps, setup %u/%u/%u, " + "trans %u/%u/%u\n", + name, + 1000 * 1000 * numframes / total_time_auto_us, + s_min_setup_us, + s_max_setup_us, + s_total_setup_us / numframes, + s_min_trans_us, + s_max_trans_us, + s_total_trans_us / numframes); + + s_total_setup_us = 0; + s_min_setup_us = 0xffffffff; + s_max_setup_us = 0; + s_total_trans_us = 0; + s_min_trans_us = 0xffffffff; + s_max_trans_us = 0; + dsi_perf_mark_start_auto(); + } else { + printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), " + "%u bytes, %u kbytes/sec\n", + name, + setup_us, + trans_us, + total_us, + 1000*1000 / total_us, + total_bytes, + total_bytes * 1000 / total_us); + } +} +#else +#define dsi_perf_mark_setup() +#define dsi_perf_mark_start() +#define dsi_perf_mark_start_auto() +#define dsi_perf_show(x) +#endif + +static void print_irq_status(u32 status) +{ +#ifndef VERBOSE_IRQ + if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0) + return; +#endif + printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status); + +#define PIS(x) \ + if (status & DSI_IRQ_##x) \ + printk(#x " "); +#ifdef VERBOSE_IRQ + PIS(VC0); + PIS(VC1); + PIS(VC2); + PIS(VC3); +#endif + PIS(WAKEUP); + PIS(RESYNC); + PIS(PLL_LOCK); + PIS(PLL_UNLOCK); + PIS(PLL_RECALL); + PIS(COMPLEXIO_ERR); + PIS(HS_TX_TIMEOUT); + PIS(LP_RX_TIMEOUT); + PIS(TE_TRIGGER); + PIS(ACK_TRIGGER); + PIS(SYNC_LOST); + PIS(LDO_POWER_GOOD); + PIS(TA_TIMEOUT); +#undef PIS + + printk("\n"); +} + +static void print_irq_status_vc(int channel, u32 status) +{ +#ifndef VERBOSE_IRQ + if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0) + return; +#endif + printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status); + +#define PIS(x) \ + if (status & DSI_VC_IRQ_##x) \ + printk(#x " "); + PIS(CS); + PIS(ECC_CORR); +#ifdef VERBOSE_IRQ + PIS(PACKET_SENT); +#endif + PIS(FIFO_TX_OVF); + PIS(FIFO_RX_OVF); + PIS(BTA); + PIS(ECC_NO_CORR); + PIS(FIFO_TX_UDF); + PIS(PP_BUSY_CHANGE); +#undef PIS + printk("\n"); +} + +static void print_irq_status_cio(u32 status) +{ + printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status); + +#define PIS(x) \ + if (status & DSI_CIO_IRQ_##x) \ + printk(#x " "); + PIS(ERRSYNCESC1); + PIS(ERRSYNCESC2); + PIS(ERRSYNCESC3); + PIS(ERRESC1); + PIS(ERRESC2); + PIS(ERRESC3); + PIS(ERRCONTROL1); + PIS(ERRCONTROL2); + PIS(ERRCONTROL3); + PIS(STATEULPS1); + PIS(STATEULPS2); + PIS(STATEULPS3); + PIS(ERRCONTENTIONLP0_1); + PIS(ERRCONTENTIONLP1_1); + PIS(ERRCONTENTIONLP0_2); + PIS(ERRCONTENTIONLP1_2); + PIS(ERRCONTENTIONLP0_3); + PIS(ERRCONTENTIONLP1_3); + PIS(ULPSACTIVENOT_ALL0); + PIS(ULPSACTIVENOT_ALL1); +#undef PIS + + printk("\n"); +} + +static int debug_irq; + +/* called from dss */ +void dsi_irq_handler(void) +{ + u32 irqstatus, vcstatus, ciostatus; + int i; + + irqstatus = dsi_read_reg(DSI_IRQSTATUS); + + if (irqstatus & DSI_IRQ_ERROR_MASK) { + DSSERR("DSI error, irqstatus %x\n", irqstatus); + print_irq_status(irqstatus); + spin_lock(&dsi.errors_lock); + dsi.errors |= irqstatus & DSI_IRQ_ERROR_MASK; + spin_unlock(&dsi.errors_lock); + } else if (debug_irq) { + print_irq_status(irqstatus); + } + +#ifdef DSI_CATCH_MISSING_TE + if (irqstatus & DSI_IRQ_TE_TRIGGER) + del_timer(&dsi.te_timer); +#endif + + for (i = 0; i < 4; ++i) { + if ((irqstatus & (1<<i)) == 0) + continue; + + vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i)); + + if (vcstatus & DSI_VC_IRQ_BTA) + complete(&dsi.bta_completion); + + if (vcstatus & DSI_VC_IRQ_ERROR_MASK) { + DSSERR("DSI VC(%d) error, vc irqstatus %x\n", + i, vcstatus); + print_irq_status_vc(i, vcstatus); + } else if (debug_irq) { + print_irq_status_vc(i, vcstatus); + } + + dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus); + /* flush posted write */ + dsi_read_reg(DSI_VC_IRQSTATUS(i)); + } + + if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) { + ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); + + dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus); + /* flush posted write */ + dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); + + DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus); + print_irq_status_cio(ciostatus); + } + + dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK); + /* flush posted write */ + dsi_read_reg(DSI_IRQSTATUS); +} + + +static void _dsi_initialize_irq(void) +{ + u32 l; + int i; + + /* disable all interrupts */ + dsi_write_reg(DSI_IRQENABLE, 0); + for (i = 0; i < 4; ++i) + dsi_write_reg(DSI_VC_IRQENABLE(i), 0); + dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0); + + /* clear interrupt status */ + l = dsi_read_reg(DSI_IRQSTATUS); + dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK); + + for (i = 0; i < 4; ++i) { + l = dsi_read_reg(DSI_VC_IRQSTATUS(i)); + dsi_write_reg(DSI_VC_IRQSTATUS(i), l); + } + + l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); + dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l); + + /* enable error irqs */ + l = DSI_IRQ_ERROR_MASK; +#ifdef DSI_CATCH_MISSING_TE + l |= DSI_IRQ_TE_TRIGGER; +#endif + dsi_write_reg(DSI_IRQENABLE, l); + + l = DSI_VC_IRQ_ERROR_MASK; + for (i = 0; i < 4; ++i) + dsi_write_reg(DSI_VC_IRQENABLE(i), l); + + /* XXX zonda responds incorrectly, causing control error: + Exit from LP-ESC mode to LP11 uses wrong transition states on the + data lines LP0 and LN0. */ + dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, + -1 & (~DSI_CIO_IRQ_ERRCONTROL2)); +} + +static u32 dsi_get_errors(void) +{ + unsigned long flags; + u32 e; + spin_lock_irqsave(&dsi.errors_lock, flags); + e = dsi.errors; + dsi.errors = 0; + spin_unlock_irqrestore(&dsi.errors_lock, flags); + return e; +} + +static void dsi_vc_enable_bta_irq(int channel) +{ + u32 l; + + dsi_write_reg(DSI_VC_IRQSTATUS(channel), DSI_VC_IRQ_BTA); + + l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); + l |= DSI_VC_IRQ_BTA; + dsi_write_reg(DSI_VC_IRQENABLE(channel), l); +} + +static void dsi_vc_disable_bta_irq(int channel) +{ + u32 l; + + l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); + l &= ~DSI_VC_IRQ_BTA; + dsi_write_reg(DSI_VC_IRQENABLE(channel), l); +} + +/* DSI func clock. this could also be DSI2_PLL_FCLK */ +static inline void enable_clocks(bool enable) +{ + if (enable) + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + else + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +} + +/* source clock for DSI PLL. this could also be PCLKFREE */ +static inline void dsi_enable_pll_clock(bool enable) +{ + if (enable) + dss_clk_enable(DSS_CLK_FCK2); + else + dss_clk_disable(DSS_CLK_FCK2); + + if (enable && dsi.pll_locked) { + if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) + DSSERR("cannot lock PLL when enabling clocks\n"); + } +} + +#ifdef DEBUG +static void _dsi_print_reset_status(void) +{ + u32 l; + + if (!dss_debug) + return; + + /* A dummy read using the SCP interface to any DSIPHY register is + * required after DSIPHY reset to complete the reset of the DSI complex + * I/O. */ + l = dsi_read_reg(DSI_DSIPHY_CFG5); + + printk(KERN_DEBUG "DSI resets: "); + + l = dsi_read_reg(DSI_PLL_STATUS); + printk("PLL (%d) ", FLD_GET(l, 0, 0)); + + l = dsi_read_reg(DSI_COMPLEXIO_CFG1); + printk("CIO (%d) ", FLD_GET(l, 29, 29)); + + l = dsi_read_reg(DSI_DSIPHY_CFG5); + printk("PHY (%x, %d, %d, %d)\n", + FLD_GET(l, 28, 26), + FLD_GET(l, 29, 29), + FLD_GET(l, 30, 30), + FLD_GET(l, 31, 31)); +} +#else +#define _dsi_print_reset_status() +#endif + +static inline int dsi_if_enable(bool enable) +{ + DSSDBG("dsi_if_enable(%d)\n", enable); + + enable = enable ? 1 : 0; + REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */ + + if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) { + DSSERR("Failed to set dsi_if_enable to %d\n", enable); + return -EIO; + } + + return 0; +} + +unsigned long dsi_get_dsi1_pll_rate(void) +{ + return dsi.current_cinfo.dsi1_pll_fclk; +} + +static unsigned long dsi_get_dsi2_pll_rate(void) +{ + return dsi.current_cinfo.dsi2_pll_fclk; +} + +static unsigned long dsi_get_txbyteclkhs(void) +{ + return dsi.current_cinfo.clkin4ddr / 16; +} + +static unsigned long dsi_fclk_rate(void) +{ + unsigned long r; + + if (dss_get_dsi_clk_source() == 0) { + /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */ + r = dss_clk_get_rate(DSS_CLK_FCK1); + } else { + /* DSI FCLK source is DSI2_PLL_FCLK */ + r = dsi_get_dsi2_pll_rate(); + } + + return r; +} + +static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev) +{ + unsigned long dsi_fclk; + unsigned lp_clk_div; + unsigned long lp_clk; + + lp_clk_div = dssdev->phy.dsi.div.lp_clk_div; + + if (lp_clk_div == 0 || lp_clk_div > LP_DIV_MAX) + return -EINVAL; + + dsi_fclk = dsi_fclk_rate(); + + lp_clk = dsi_fclk / 2 / lp_clk_div; + + DSSDBG("LP_CLK_DIV %u, LP_CLK %lu\n", lp_clk_div, lp_clk); + dsi.current_cinfo.lp_clk = lp_clk; + dsi.current_cinfo.lp_clk_div = lp_clk_div; + + REG_FLD_MOD(DSI_CLK_CTRL, lp_clk_div, 12, 0); /* LP_CLK_DIVISOR */ + + REG_FLD_MOD(DSI_CLK_CTRL, dsi_fclk > 30000000 ? 1 : 0, + 21, 21); /* LP_RX_SYNCHRO_ENABLE */ + + return 0; +} + + +enum dsi_pll_power_state { + DSI_PLL_POWER_OFF = 0x0, + DSI_PLL_POWER_ON_HSCLK = 0x1, + DSI_PLL_POWER_ON_ALL = 0x2, + DSI_PLL_POWER_ON_DIV = 0x3, +}; + +static int dsi_pll_power(enum dsi_pll_power_state state) +{ + int t = 0; + + REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */ + + /* PLL_PWR_STATUS */ + while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) { + udelay(1); + if (t++ > 1000) { + DSSERR("Failed to set DSI PLL power mode to %d\n", + state); + return -ENODEV; + } + } + + return 0; +} + +/* calculate clock rates using dividers in cinfo */ +static int dsi_calc_clock_rates(struct dsi_clock_info *cinfo) +{ + if (cinfo->regn == 0 || cinfo->regn > REGN_MAX) + return -EINVAL; + + if (cinfo->regm == 0 || cinfo->regm > REGM_MAX) + return -EINVAL; + + if (cinfo->regm3 > REGM3_MAX) + return -EINVAL; + + if (cinfo->regm4 > REGM4_MAX) + return -EINVAL; + + if (cinfo->use_dss2_fck) { + cinfo->clkin = dss_clk_get_rate(DSS_CLK_FCK2); + /* XXX it is unclear if highfreq should be used + * with DSS2_FCK source also */ + cinfo->highfreq = 0; + } else { + cinfo->clkin = dispc_pclk_rate(); + + if (cinfo->clkin < 32000000) + cinfo->highfreq = 0; + else + cinfo->highfreq = 1; + } + + cinfo->fint = cinfo->clkin / (cinfo->regn * (cinfo->highfreq ? 2 : 1)); + + if (cinfo->fint > FINT_MAX || cinfo->fint < FINT_MIN) + return -EINVAL; + + cinfo->clkin4ddr = 2 * cinfo->regm * cinfo->fint; + + if (cinfo->clkin4ddr > 1800 * 1000 * 1000) + return -EINVAL; + + if (cinfo->regm3 > 0) + cinfo->dsi1_pll_fclk = cinfo->clkin4ddr / cinfo->regm3; + else + cinfo->dsi1_pll_fclk = 0; + + if (cinfo->regm4 > 0) + cinfo->dsi2_pll_fclk = cinfo->clkin4ddr / cinfo->regm4; + else + cinfo->dsi2_pll_fclk = 0; + + return 0; +} + +int dsi_pll_calc_clock_div_pck(bool is_tft, unsigned long req_pck, + struct dsi_clock_info *dsi_cinfo, + struct dispc_clock_info *dispc_cinfo) +{ + struct dsi_clock_info cur, best; + struct dispc_clock_info best_dispc; + int min_fck_per_pck; + int match = 0; + unsigned long dss_clk_fck2; + + dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2); + + if (req_pck == dsi.cache_req_pck && + dsi.cache_cinfo.clkin == dss_clk_fck2) { + DSSDBG("DSI clock info found from cache\n"); + *dsi_cinfo = dsi.cache_cinfo; + return 0; + } + + min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; + + if (min_fck_per_pck && + req_pck * min_fck_per_pck > DISPC_MAX_FCK) { + DSSERR("Requested pixel clock not possible with the current " + "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " + "the constraint off.\n"); + min_fck_per_pck = 0; + } + + DSSDBG("dsi_pll_calc\n"); + +retry: + memset(&best, 0, sizeof(best)); + memset(&best_dispc, 0, sizeof(best_dispc)); + + memset(&cur, 0, sizeof(cur)); + cur.clkin = dss_clk_fck2; + cur.use_dss2_fck = 1; + cur.highfreq = 0; + + /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */ + /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */ + /* To reduce PLL lock time, keep Fint high (around 2 MHz) */ + for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) { + if (cur.highfreq == 0) + cur.fint = cur.clkin / cur.regn; + else + cur.fint = cur.clkin / (2 * cur.regn); + + if (cur.fint > FINT_MAX || cur.fint < FINT_MIN) + continue; + + /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */ + for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) { + unsigned long a, b; + + a = 2 * cur.regm * (cur.clkin/1000); + b = cur.regn * (cur.highfreq + 1); + cur.clkin4ddr = a / b * 1000; + + if (cur.clkin4ddr > 1800 * 1000 * 1000) + break; + + /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */ + for (cur.regm3 = 1; cur.regm3 < REGM3_MAX; + ++cur.regm3) { + struct dispc_clock_info cur_dispc; + cur.dsi1_pll_fclk = cur.clkin4ddr / cur.regm3; + + /* this will narrow down the search a bit, + * but still give pixclocks below what was + * requested */ + if (cur.dsi1_pll_fclk < req_pck) + break; + + if (cur.dsi1_pll_fclk > DISPC_MAX_FCK) + continue; + + if (min_fck_per_pck && + cur.dsi1_pll_fclk < + req_pck * min_fck_per_pck) + continue; + + match = 1; + + dispc_find_clk_divs(is_tft, req_pck, + cur.dsi1_pll_fclk, + &cur_dispc); + + if (abs(cur_dispc.pck - req_pck) < + abs(best_dispc.pck - req_pck)) { + best = cur; + best_dispc = cur_dispc; + + if (cur_dispc.pck == req_pck) + goto found; + } + } + } + } +found: + if (!match) { + if (min_fck_per_pck) { + DSSERR("Could not find suitable clock settings.\n" + "Turning FCK/PCK constraint off and" + "trying again.\n"); + min_fck_per_pck = 0; + goto retry; + } + + DSSERR("Could not find suitable clock settings.\n"); + + return -EINVAL; + } + + /* DSI2_PLL_FCLK (regm4) is not used */ + best.regm4 = 0; + best.dsi2_pll_fclk = 0; + + if (dsi_cinfo) + *dsi_cinfo = best; + if (dispc_cinfo) + *dispc_cinfo = best_dispc; + + dsi.cache_req_pck = req_pck; + dsi.cache_clk_freq = 0; + dsi.cache_cinfo = best; + + return 0; +} + +int dsi_pll_set_clock_div(struct dsi_clock_info *cinfo) +{ + int r = 0; + u32 l; + int f; + + DSSDBGF(); + + dsi.current_cinfo.fint = cinfo->fint; + dsi.current_cinfo.clkin4ddr = cinfo->clkin4ddr; + dsi.current_cinfo.dsi1_pll_fclk = cinfo->dsi1_pll_fclk; + dsi.current_cinfo.dsi2_pll_fclk = cinfo->dsi2_pll_fclk; + + dsi.current_cinfo.regn = cinfo->regn; + dsi.current_cinfo.regm = cinfo->regm; + dsi.current_cinfo.regm3 = cinfo->regm3; + dsi.current_cinfo.regm4 = cinfo->regm4; + + DSSDBG("DSI Fint %ld\n", cinfo->fint); + + DSSDBG("clkin (%s) rate %ld, highfreq %d\n", + cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree", + cinfo->clkin, + cinfo->highfreq); + + /* DSIPHY == CLKIN4DDR */ + DSSDBG("CLKIN4DDR = 2 * %d / %d * %lu / %d = %lu\n", + cinfo->regm, + cinfo->regn, + cinfo->clkin, + cinfo->highfreq + 1, + cinfo->clkin4ddr); + + DSSDBG("Data rate on 1 DSI lane %ld Mbps\n", + cinfo->clkin4ddr / 1000 / 1000 / 2); + + DSSDBG("Clock lane freq %ld Hz\n", cinfo->clkin4ddr / 4); + + DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n", + cinfo->regm3, cinfo->dsi1_pll_fclk); + DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n", + cinfo->regm4, cinfo->dsi2_pll_fclk); + + REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */ + + l = dsi_read_reg(DSI_PLL_CONFIGURATION1); + l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */ + l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */ + l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */ + l = FLD_MOD(l, cinfo->regm3 > 0 ? cinfo->regm3 - 1 : 0, + 22, 19); /* DSI_CLOCK_DIV */ + l = FLD_MOD(l, cinfo->regm4 > 0 ? cinfo->regm4 - 1 : 0, + 26, 23); /* DSIPROTO_CLOCK_DIV */ + dsi_write_reg(DSI_PLL_CONFIGURATION1, l); + + BUG_ON(cinfo->fint < 750000 || cinfo->fint > 2100000); + if (cinfo->fint < 1000000) + f = 0x3; + else if (cinfo->fint < 1250000) + f = 0x4; + else if (cinfo->fint < 1500000) + f = 0x5; + else if (cinfo->fint < 1750000) + f = 0x6; + else + f = 0x7; + + l = dsi_read_reg(DSI_PLL_CONFIGURATION2); + l = FLD_MOD(l, f, 4, 1); /* DSI_PLL_FREQSEL */ + l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, + 11, 11); /* DSI_PLL_CLKSEL */ + l = FLD_MOD(l, cinfo->highfreq, + 12, 12); /* DSI_PLL_HIGHFREQ */ + l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ + l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */ + l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */ + dsi_write_reg(DSI_PLL_CONFIGURATION2, l); + + REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */ + + if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) { + DSSERR("dsi pll go bit not going down.\n"); + r = -EIO; + goto err; + } + + if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) { + DSSERR("cannot lock PLL\n"); + r = -EIO; + goto err; + } + + dsi.pll_locked = 1; + + l = dsi_read_reg(DSI_PLL_CONFIGURATION2); + l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */ + l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */ + l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */ + l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */ + l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */ + l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */ + l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ + l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */ + l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */ + l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */ + l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */ + l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */ + l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */ + l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */ + dsi_write_reg(DSI_PLL_CONFIGURATION2, l); + + DSSDBG("PLL config done\n"); +err: + return r; +} + +int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk, + bool enable_hsdiv) +{ + int r = 0; + enum dsi_pll_power_state pwstate; + + DSSDBG("PLL init\n"); + + enable_clocks(1); + dsi_enable_pll_clock(1); + + r = regulator_enable(dsi.vdds_dsi_reg); + if (r) + goto err0; + + /* XXX PLL does not come out of reset without this... */ + dispc_pck_free_enable(1); + + if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) { + DSSERR("PLL not coming out of reset.\n"); + r = -ENODEV; + goto err1; + } + + /* XXX ... but if left on, we get problems when planes do not + * fill the whole display. No idea about this */ + dispc_pck_free_enable(0); + + if (enable_hsclk && enable_hsdiv) + pwstate = DSI_PLL_POWER_ON_ALL; + else if (enable_hsclk) + pwstate = DSI_PLL_POWER_ON_HSCLK; + else if (enable_hsdiv) + pwstate = DSI_PLL_POWER_ON_DIV; + else + pwstate = DSI_PLL_POWER_OFF; + + r = dsi_pll_power(pwstate); + + if (r) + goto err1; + + DSSDBG("PLL init done\n"); + + return 0; +err1: + regulator_disable(dsi.vdds_dsi_reg); +err0: + enable_clocks(0); + dsi_enable_pll_clock(0); + return r; +} + +void dsi_pll_uninit(void) +{ + enable_clocks(0); + dsi_enable_pll_clock(0); + + dsi.pll_locked = 0; + dsi_pll_power(DSI_PLL_POWER_OFF); + regulator_disable(dsi.vdds_dsi_reg); + DSSDBG("PLL uninit done\n"); +} + +void dsi_dump_clocks(struct seq_file *s) +{ + int clksel; + struct dsi_clock_info *cinfo = &dsi.current_cinfo; + + enable_clocks(1); + + clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11); + + seq_printf(s, "- DSI PLL -\n"); + + seq_printf(s, "dsi pll source = %s\n", + clksel == 0 ? + "dss2_alwon_fclk" : "pclkfree"); + + seq_printf(s, "Fint\t\t%-16luregn %u\n", cinfo->fint, cinfo->regn); + + seq_printf(s, "CLKIN4DDR\t%-16luregm %u\n", + cinfo->clkin4ddr, cinfo->regm); + + seq_printf(s, "dsi1_pll_fck\t%-16luregm3 %u\t(%s)\n", + cinfo->dsi1_pll_fclk, + cinfo->regm3, + dss_get_dispc_clk_source() == 0 ? "off" : "on"); + + seq_printf(s, "dsi2_pll_fck\t%-16luregm4 %u\t(%s)\n", + cinfo->dsi2_pll_fclk, + cinfo->regm4, + dss_get_dsi_clk_source() == 0 ? "off" : "on"); + + seq_printf(s, "- DSI -\n"); + + seq_printf(s, "dsi fclk source = %s\n", + dss_get_dsi_clk_source() == 0 ? + "dss1_alwon_fclk" : "dsi2_pll_fclk"); + + seq_printf(s, "DSI_FCLK\t%lu\n", dsi_fclk_rate()); + + seq_printf(s, "DDR_CLK\t\t%lu\n", + cinfo->clkin4ddr / 4); + + seq_printf(s, "TxByteClkHS\t%lu\n", dsi_get_txbyteclkhs()); + + seq_printf(s, "LP_CLK\t\t%lu\n", cinfo->lp_clk); + + seq_printf(s, "VP_CLK\t\t%lu\n" + "VP_PCLK\t\t%lu\n", + dispc_lclk_rate(), + dispc_pclk_rate()); + + enable_clocks(0); +} + +void dsi_dump_regs(struct seq_file *s) +{ +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r)) + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + + DUMPREG(DSI_REVISION); + DUMPREG(DSI_SYSCONFIG); + DUMPREG(DSI_SYSSTATUS); + DUMPREG(DSI_IRQSTATUS); + DUMPREG(DSI_IRQENABLE); + DUMPREG(DSI_CTRL); + DUMPREG(DSI_COMPLEXIO_CFG1); + DUMPREG(DSI_COMPLEXIO_IRQ_STATUS); + DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE); + DUMPREG(DSI_CLK_CTRL); + DUMPREG(DSI_TIMING1); + DUMPREG(DSI_TIMING2); + DUMPREG(DSI_VM_TIMING1); + DUMPREG(DSI_VM_TIMING2); + DUMPREG(DSI_VM_TIMING3); + DUMPREG(DSI_CLK_TIMING); + DUMPREG(DSI_TX_FIFO_VC_SIZE); + DUMPREG(DSI_RX_FIFO_VC_SIZE); + DUMPREG(DSI_COMPLEXIO_CFG2); + DUMPREG(DSI_RX_FIFO_VC_FULLNESS); + DUMPREG(DSI_VM_TIMING4); + DUMPREG(DSI_TX_FIFO_VC_EMPTINESS); + DUMPREG(DSI_VM_TIMING5); + DUMPREG(DSI_VM_TIMING6); + DUMPREG(DSI_VM_TIMING7); + DUMPREG(DSI_STOPCLK_TIMING); + + DUMPREG(DSI_VC_CTRL(0)); + DUMPREG(DSI_VC_TE(0)); + DUMPREG(DSI_VC_LONG_PACKET_HEADER(0)); + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0)); + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0)); + DUMPREG(DSI_VC_IRQSTATUS(0)); + DUMPREG(DSI_VC_IRQENABLE(0)); + + DUMPREG(DSI_VC_CTRL(1)); + DUMPREG(DSI_VC_TE(1)); + DUMPREG(DSI_VC_LONG_PACKET_HEADER(1)); + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1)); + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1)); + DUMPREG(DSI_VC_IRQSTATUS(1)); + DUMPREG(DSI_VC_IRQENABLE(1)); + + DUMPREG(DSI_VC_CTRL(2)); + DUMPREG(DSI_VC_TE(2)); + DUMPREG(DSI_VC_LONG_PACKET_HEADER(2)); + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2)); + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2)); + DUMPREG(DSI_VC_IRQSTATUS(2)); + DUMPREG(DSI_VC_IRQENABLE(2)); + + DUMPREG(DSI_VC_CTRL(3)); + DUMPREG(DSI_VC_TE(3)); + DUMPREG(DSI_VC_LONG_PACKET_HEADER(3)); + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3)); + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3)); + DUMPREG(DSI_VC_IRQSTATUS(3)); + DUMPREG(DSI_VC_IRQENABLE(3)); + + DUMPREG(DSI_DSIPHY_CFG0); + DUMPREG(DSI_DSIPHY_CFG1); + DUMPREG(DSI_DSIPHY_CFG2); + DUMPREG(DSI_DSIPHY_CFG5); + + DUMPREG(DSI_PLL_CONTROL); + DUMPREG(DSI_PLL_STATUS); + DUMPREG(DSI_PLL_GO); + DUMPREG(DSI_PLL_CONFIGURATION1); + DUMPREG(DSI_PLL_CONFIGURATION2); + + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); +#undef DUMPREG +} + +enum dsi_complexio_power_state { + DSI_COMPLEXIO_POWER_OFF = 0x0, + DSI_COMPLEXIO_POWER_ON = 0x1, + DSI_COMPLEXIO_POWER_ULPS = 0x2, +}; + +static int dsi_complexio_power(enum dsi_complexio_power_state state) +{ + int t = 0; + + /* PWR_CMD */ + REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27); + + /* PWR_STATUS */ + while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) { + udelay(1); + if (t++ > 1000) { + DSSERR("failed to set complexio power state to " + "%d\n", state); + return -ENODEV; + } + } + + return 0; +} + +static void dsi_complexio_config(struct omap_dss_device *dssdev) +{ + u32 r; + + int clk_lane = dssdev->phy.dsi.clk_lane; + int data1_lane = dssdev->phy.dsi.data1_lane; + int data2_lane = dssdev->phy.dsi.data2_lane; + int clk_pol = dssdev->phy.dsi.clk_pol; + int data1_pol = dssdev->phy.dsi.data1_pol; + int data2_pol = dssdev->phy.dsi.data2_pol; + + r = dsi_read_reg(DSI_COMPLEXIO_CFG1); + r = FLD_MOD(r, clk_lane, 2, 0); + r = FLD_MOD(r, clk_pol, 3, 3); + r = FLD_MOD(r, data1_lane, 6, 4); + r = FLD_MOD(r, data1_pol, 7, 7); + r = FLD_MOD(r, data2_lane, 10, 8); + r = FLD_MOD(r, data2_pol, 11, 11); + dsi_write_reg(DSI_COMPLEXIO_CFG1, r); + + /* The configuration of the DSI complex I/O (number of data lanes, + position, differential order) should not be changed while + DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for + the hardware to take into account a new configuration of the complex + I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to + follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, + then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set + DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the + DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the + DSI complex I/O configuration is unknown. */ + + /* + REG_FLD_MOD(DSI_CTRL, 1, 0, 0); + REG_FLD_MOD(DSI_CTRL, 0, 0, 0); + REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); + REG_FLD_MOD(DSI_CTRL, 1, 0, 0); + */ +} + +static inline unsigned ns2ddr(unsigned ns) +{ + /* convert time in ns to ddr ticks, rounding up */ + unsigned long ddr_clk = dsi.current_cinfo.clkin4ddr / 4; + return (ns * (ddr_clk / 1000 / 1000) + 999) / 1000; +} + +static inline unsigned ddr2ns(unsigned ddr) +{ + unsigned long ddr_clk = dsi.current_cinfo.clkin4ddr / 4; + return ddr * 1000 * 1000 / (ddr_clk / 1000); +} + +static void dsi_complexio_timings(void) +{ + u32 r; + u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit; + u32 tlpx_half, tclk_trail, tclk_zero; + u32 tclk_prepare; + + /* calculate timings */ + + /* 1 * DDR_CLK = 2 * UI */ + + /* min 40ns + 4*UI max 85ns + 6*UI */ + ths_prepare = ns2ddr(70) + 2; + + /* min 145ns + 10*UI */ + ths_prepare_ths_zero = ns2ddr(175) + 2; + + /* min max(8*UI, 60ns+4*UI) */ + ths_trail = ns2ddr(60) + 5; + + /* min 100ns */ + ths_exit = ns2ddr(145); + + /* tlpx min 50n */ + tlpx_half = ns2ddr(25); + + /* min 60ns */ + tclk_trail = ns2ddr(60) + 2; + + /* min 38ns, max 95ns */ + tclk_prepare = ns2ddr(65); + + /* min tclk-prepare + tclk-zero = 300ns */ + tclk_zero = ns2ddr(260); + + DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n", + ths_prepare, ddr2ns(ths_prepare), + ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero)); + DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n", + ths_trail, ddr2ns(ths_trail), + ths_exit, ddr2ns(ths_exit)); + + DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), " + "tclk_zero %u (%uns)\n", + tlpx_half, ddr2ns(tlpx_half), + tclk_trail, ddr2ns(tclk_trail), + tclk_zero, ddr2ns(tclk_zero)); + DSSDBG("tclk_prepare %u (%uns)\n", + tclk_prepare, ddr2ns(tclk_prepare)); + + /* program timings */ + + r = dsi_read_reg(DSI_DSIPHY_CFG0); + r = FLD_MOD(r, ths_prepare, 31, 24); + r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16); + r = FLD_MOD(r, ths_trail, 15, 8); + r = FLD_MOD(r, ths_exit, 7, 0); + dsi_write_reg(DSI_DSIPHY_CFG0, r); + + r = dsi_read_reg(DSI_DSIPHY_CFG1); + r = FLD_MOD(r, tlpx_half, 22, 16); + r = FLD_MOD(r, tclk_trail, 15, 8); + r = FLD_MOD(r, tclk_zero, 7, 0); + dsi_write_reg(DSI_DSIPHY_CFG1, r); + + r = dsi_read_reg(DSI_DSIPHY_CFG2); + r = FLD_MOD(r, tclk_prepare, 7, 0); + dsi_write_reg(DSI_DSIPHY_CFG2, r); +} + + +static int dsi_complexio_init(struct omap_dss_device *dssdev) +{ + int r = 0; + + DSSDBG("dsi_complexio_init\n"); + + /* CIO_CLK_ICG, enable L3 clk to CIO */ + REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14); + + /* A dummy read using the SCP interface to any DSIPHY register is + * required after DSIPHY reset to complete the reset of the DSI complex + * I/O. */ + dsi_read_reg(DSI_DSIPHY_CFG5); + + if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) { + DSSERR("ComplexIO PHY not coming out of reset.\n"); + r = -ENODEV; + goto err; + } + + dsi_complexio_config(dssdev); + + r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON); + + if (r) + goto err; + + if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) { + DSSERR("ComplexIO not coming out of reset.\n"); + r = -ENODEV; + goto err; + } + + if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) { + DSSERR("ComplexIO LDO power down.\n"); + r = -ENODEV; + goto err; + } + + dsi_complexio_timings(); + + /* + The configuration of the DSI complex I/O (number of data lanes, + position, differential order) should not be changed while + DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the + hardware to recognize a new configuration of the complex I/O (done + in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow + this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next + reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20] + LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN + bit to 1. If the sequence is not followed, the DSi complex I/O + configuration is undetermined. + */ + dsi_if_enable(1); + dsi_if_enable(0); + REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */ + dsi_if_enable(1); + dsi_if_enable(0); + + DSSDBG("CIO init done\n"); +err: + return r; +} + +static void dsi_complexio_uninit(void) +{ + dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF); +} + +static int _dsi_wait_reset(void) +{ + int i = 0; + + while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) { + if (i++ > 5) { + DSSERR("soft reset failed\n"); + return -ENODEV; + } + udelay(1); + } + + return 0; +} + +static int _dsi_reset(void) +{ + /* Soft reset */ + REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1); + return _dsi_wait_reset(); +} + +static void dsi_reset_tx_fifo(int channel) +{ + u32 mask; + u32 l; + + /* set fifosize of the channel to 0, then return the old size */ + l = dsi_read_reg(DSI_TX_FIFO_VC_SIZE); + + mask = FLD_MASK((8 * channel) + 7, (8 * channel) + 4); + dsi_write_reg(DSI_TX_FIFO_VC_SIZE, l & ~mask); + + dsi_write_reg(DSI_TX_FIFO_VC_SIZE, l); +} + +static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2, + enum fifo_size size3, enum fifo_size size4) +{ + u32 r = 0; + int add = 0; + int i; + + dsi.vc[0].fifo_size = size1; + dsi.vc[1].fifo_size = size2; + dsi.vc[2].fifo_size = size3; + dsi.vc[3].fifo_size = size4; + + for (i = 0; i < 4; i++) { + u8 v; + int size = dsi.vc[i].fifo_size; + + if (add + size > 4) { + DSSERR("Illegal FIFO configuration\n"); + BUG(); + } + + v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); + r |= v << (8 * i); + /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */ + add += size; + } + + dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r); +} + +static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2, + enum fifo_size size3, enum fifo_size size4) +{ + u32 r = 0; + int add = 0; + int i; + + dsi.vc[0].fifo_size = size1; + dsi.vc[1].fifo_size = size2; + dsi.vc[2].fifo_size = size3; + dsi.vc[3].fifo_size = size4; + + for (i = 0; i < 4; i++) { + u8 v; + int size = dsi.vc[i].fifo_size; + + if (add + size > 4) { + DSSERR("Illegal FIFO configuration\n"); + BUG(); + } + + v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); + r |= v << (8 * i); + /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */ + add += size; + } + + dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r); +} + +static int dsi_force_tx_stop_mode_io(void) +{ + u32 r; + + r = dsi_read_reg(DSI_TIMING1); + r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ + dsi_write_reg(DSI_TIMING1, r); + + if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) { + DSSERR("TX_STOP bit not going down\n"); + return -EIO; + } + + return 0; +} + +static void dsi_vc_print_status(int channel) +{ + u32 r; + + r = dsi_read_reg(DSI_VC_CTRL(channel)); + DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, " + "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ", + channel, + FLD_GET(r, 5, 5), + FLD_GET(r, 6, 6), + FLD_GET(r, 15, 15), + FLD_GET(r, 16, 16), + FLD_GET(r, 20, 20)); + + r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS); + DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff); +} + +static int dsi_vc_enable(int channel, bool enable) +{ + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) + DSSDBG("dsi_vc_enable channel %d, enable %d\n", + channel, enable); + + enable = enable ? 1 : 0; + + REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0); + + if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) { + DSSERR("Failed to set dsi_vc_enable to %d\n", enable); + return -EIO; + } + + return 0; +} + +static void dsi_vc_initial_config(int channel) +{ + u32 r; + + DSSDBGF("%d", channel); + + r = dsi_read_reg(DSI_VC_CTRL(channel)); + + if (FLD_GET(r, 15, 15)) /* VC_BUSY */ + DSSERR("VC(%d) busy when trying to configure it!\n", + channel); + + r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */ + r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */ + r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */ + r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */ + r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */ + r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */ + r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */ + + r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */ + r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */ + + dsi_write_reg(DSI_VC_CTRL(channel), r); + + dsi.vc[channel].mode = DSI_VC_MODE_L4; +} + +static void dsi_vc_config_l4(int channel) +{ + if (dsi.vc[channel].mode == DSI_VC_MODE_L4) + return; + + DSSDBGF("%d", channel); + + dsi_vc_enable(channel, 0); + + if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */ + DSSERR("vc(%d) busy when trying to config for L4\n", channel); + + REG_FLD_MOD(DSI_VC_CTRL(channel), 0, 1, 1); /* SOURCE, 0 = L4 */ + + dsi_vc_enable(channel, 1); + + dsi.vc[channel].mode = DSI_VC_MODE_L4; +} + +static void dsi_vc_config_vp(int channel) +{ + if (dsi.vc[channel].mode == DSI_VC_MODE_VP) + return; + + DSSDBGF("%d", channel); + + dsi_vc_enable(channel, 0); + + if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */ + DSSERR("vc(%d) busy when trying to config for VP\n", channel); + + REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 1, 1); /* SOURCE, 1 = video port */ + + dsi_vc_enable(channel, 1); + + dsi.vc[channel].mode = DSI_VC_MODE_VP; +} + + +static void dsi_vc_enable_hs(int channel, bool enable) +{ + DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable); + + dsi_vc_enable(channel, 0); + dsi_if_enable(0); + + REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9); + + dsi_vc_enable(channel, 1); + dsi_if_enable(1); + + dsi_force_tx_stop_mode_io(); +} + +static void dsi_vc_flush_long_data(int channel) +{ + while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { + u32 val; + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); + DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n", + (val >> 0) & 0xff, + (val >> 8) & 0xff, + (val >> 16) & 0xff, + (val >> 24) & 0xff); + } +} + +static void dsi_show_rx_ack_with_err(u16 err) +{ + DSSERR("\tACK with ERROR (%#x):\n", err); + if (err & (1 << 0)) + DSSERR("\t\tSoT Error\n"); + if (err & (1 << 1)) + DSSERR("\t\tSoT Sync Error\n"); + if (err & (1 << 2)) + DSSERR("\t\tEoT Sync Error\n"); + if (err & (1 << 3)) + DSSERR("\t\tEscape Mode Entry Command Error\n"); + if (err & (1 << 4)) + DSSERR("\t\tLP Transmit Sync Error\n"); + if (err & (1 << 5)) + DSSERR("\t\tHS Receive Timeout Error\n"); + if (err & (1 << 6)) + DSSERR("\t\tFalse Control Error\n"); + if (err & (1 << 7)) + DSSERR("\t\t(reserved7)\n"); + if (err & (1 << 8)) + DSSERR("\t\tECC Error, single-bit (corrected)\n"); + if (err & (1 << 9)) + DSSERR("\t\tECC Error, multi-bit (not corrected)\n"); + if (err & (1 << 10)) + DSSERR("\t\tChecksum Error\n"); + if (err & (1 << 11)) + DSSERR("\t\tData type not recognized\n"); + if (err & (1 << 12)) + DSSERR("\t\tInvalid VC ID\n"); + if (err & (1 << 13)) + DSSERR("\t\tInvalid Transmission Length\n"); + if (err & (1 << 14)) + DSSERR("\t\t(reserved14)\n"); + if (err & (1 << 15)) + DSSERR("\t\tDSI Protocol Violation\n"); +} + +static u16 dsi_vc_flush_receive_data(int channel) +{ + /* RX_FIFO_NOT_EMPTY */ + while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { + u32 val; + u8 dt; + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); + DSSDBG("\trawval %#08x\n", val); + dt = FLD_GET(val, 5, 0); + if (dt == DSI_DT_RX_ACK_WITH_ERR) { + u16 err = FLD_GET(val, 23, 8); + dsi_show_rx_ack_with_err(err); + } else if (dt == DSI_DT_RX_SHORT_READ_1) { + DSSDBG("\tDCS short response, 1 byte: %#x\n", + FLD_GET(val, 23, 8)); + } else if (dt == DSI_DT_RX_SHORT_READ_2) { + DSSDBG("\tDCS short response, 2 byte: %#x\n", + FLD_GET(val, 23, 8)); + } else if (dt == DSI_DT_RX_DCS_LONG_READ) { + DSSDBG("\tDCS long response, len %d\n", + FLD_GET(val, 23, 8)); + dsi_vc_flush_long_data(channel); + } else { + DSSERR("\tunknown datatype 0x%02x\n", dt); + } + } + return 0; +} + +static int dsi_vc_send_bta(int channel) +{ + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO && + (dsi.debug_write || dsi.debug_read)) + DSSDBG("dsi_vc_send_bta %d\n", channel); + + WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + + if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */ + DSSERR("rx fifo not empty when sending BTA, dumping data:\n"); + dsi_vc_flush_receive_data(channel); + } + + REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */ + + return 0; +} + +int dsi_vc_send_bta_sync(int channel) +{ + int r = 0; + u32 err; + + INIT_COMPLETION(dsi.bta_completion); + + dsi_vc_enable_bta_irq(channel); + + r = dsi_vc_send_bta(channel); + if (r) + goto err; + + if (wait_for_completion_timeout(&dsi.bta_completion, + msecs_to_jiffies(500)) == 0) { + DSSERR("Failed to receive BTA\n"); + r = -EIO; + goto err; + } + + err = dsi_get_errors(); + if (err) { + DSSERR("Error while sending BTA: %x\n", err); + r = -EIO; + goto err; + } +err: + dsi_vc_disable_bta_irq(channel); + + return r; +} +EXPORT_SYMBOL(dsi_vc_send_bta_sync); + +static inline void dsi_vc_write_long_header(int channel, u8 data_type, + u16 len, u8 ecc) +{ + u32 val; + u8 data_id; + + WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + + /*data_id = data_type | channel << 6; */ + data_id = data_type | dsi.vc[channel].dest_per << 6; + + val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) | + FLD_VAL(ecc, 31, 24); + + dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val); +} + +static inline void dsi_vc_write_long_payload(int channel, + u8 b1, u8 b2, u8 b3, u8 b4) +{ + u32 val; + + val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0; + +/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n", + b1, b2, b3, b4, val); */ + + dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val); +} + +static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len, + u8 ecc) +{ + /*u32 val; */ + int i; + u8 *p; + int r = 0; + u8 b1, b2, b3, b4; + + if (dsi.debug_write) + DSSDBG("dsi_vc_send_long, %d bytes\n", len); + + /* len + header */ + if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) { + DSSERR("unable to send long packet: packet too long.\n"); + return -EINVAL; + } + + dsi_vc_config_l4(channel); + + dsi_vc_write_long_header(channel, data_type, len, ecc); + + /*dsi_vc_print_status(0); */ + + p = data; + for (i = 0; i < len >> 2; i++) { + if (dsi.debug_write) + DSSDBG("\tsending full packet %d\n", i); + /*dsi_vc_print_status(0); */ + + b1 = *p++; + b2 = *p++; + b3 = *p++; + b4 = *p++; + + dsi_vc_write_long_payload(channel, b1, b2, b3, b4); + } + + i = len % 4; + if (i) { + b1 = 0; b2 = 0; b3 = 0; + + if (dsi.debug_write) + DSSDBG("\tsending remainder bytes %d\n", i); + + switch (i) { + case 3: + b1 = *p++; + b2 = *p++; + b3 = *p++; + break; + case 2: + b1 = *p++; + b2 = *p++; + break; + case 1: + b1 = *p++; + break; + } + + dsi_vc_write_long_payload(channel, b1, b2, b3, 0); + } + + return r; +} + +static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc) +{ + u32 r; + u8 data_id; + + WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + + if (dsi.debug_write) + DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n", + channel, + data_type, data & 0xff, (data >> 8) & 0xff); + + dsi_vc_config_l4(channel); + + if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) { + DSSERR("ERROR FIFO FULL, aborting transfer\n"); + return -EINVAL; + } + + data_id = data_type | channel << 6; + + r = (data_id << 0) | (data << 8) | (ecc << 24); + + dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r); + + return 0; +} + +int dsi_vc_send_null(int channel) +{ + u8 nullpkg[] = {0, 0, 0, 0}; + return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0); +} +EXPORT_SYMBOL(dsi_vc_send_null); + +int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len) +{ + int r; + + BUG_ON(len == 0); + + if (len == 1) { + r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0, + data[0], 0); + } else if (len == 2) { + r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1, + data[0] | (data[1] << 8), 0); + } else { + /* 0x39 = DCS Long Write */ + r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE, + data, len, 0); + } + + return r; +} +EXPORT_SYMBOL(dsi_vc_dcs_write_nosync); + +int dsi_vc_dcs_write(int channel, u8 *data, int len) +{ + int r; + + r = dsi_vc_dcs_write_nosync(channel, data, len); + if (r) + return r; + + r = dsi_vc_send_bta_sync(channel); + + return r; +} +EXPORT_SYMBOL(dsi_vc_dcs_write); + +int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) +{ + u32 val; + u8 dt; + int r; + + if (dsi.debug_read) + DSSDBG("dsi_vc_dcs_read(ch%d, dcs_cmd %u)\n", channel, dcs_cmd); + + r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0); + if (r) + return r; + + r = dsi_vc_send_bta_sync(channel); + if (r) + return r; + + /* RX_FIFO_NOT_EMPTY */ + if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) { + DSSERR("RX fifo empty when trying to read.\n"); + return -EIO; + } + + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); + if (dsi.debug_read) + DSSDBG("\theader: %08x\n", val); + dt = FLD_GET(val, 5, 0); + if (dt == DSI_DT_RX_ACK_WITH_ERR) { + u16 err = FLD_GET(val, 23, 8); + dsi_show_rx_ack_with_err(err); + return -EIO; + + } else if (dt == DSI_DT_RX_SHORT_READ_1) { + u8 data = FLD_GET(val, 15, 8); + if (dsi.debug_read) + DSSDBG("\tDCS short response, 1 byte: %02x\n", data); + + if (buflen < 1) + return -EIO; + + buf[0] = data; + + return 1; + } else if (dt == DSI_DT_RX_SHORT_READ_2) { + u16 data = FLD_GET(val, 23, 8); + if (dsi.debug_read) + DSSDBG("\tDCS short response, 2 byte: %04x\n", data); + + if (buflen < 2) + return -EIO; + + buf[0] = data & 0xff; + buf[1] = (data >> 8) & 0xff; + + return 2; + } else if (dt == DSI_DT_RX_DCS_LONG_READ) { + int w; + int len = FLD_GET(val, 23, 8); + if (dsi.debug_read) + DSSDBG("\tDCS long response, len %d\n", len); + + if (len > buflen) + return -EIO; + + /* two byte checksum ends the packet, not included in len */ + for (w = 0; w < len + 2;) { + int b; + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); + if (dsi.debug_read) + DSSDBG("\t\t%02x %02x %02x %02x\n", + (val >> 0) & 0xff, + (val >> 8) & 0xff, + (val >> 16) & 0xff, + (val >> 24) & 0xff); + + for (b = 0; b < 4; ++b) { + if (w < len) + buf[w] = (val >> (b * 8)) & 0xff; + /* we discard the 2 byte checksum */ + ++w; + } + } + + return len; + + } else { + DSSERR("\tunknown datatype 0x%02x\n", dt); + return -EIO; + } +} +EXPORT_SYMBOL(dsi_vc_dcs_read); + + +int dsi_vc_set_max_rx_packet_size(int channel, u16 len) +{ + int r; + r = dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE, + len, 0); + + if (r) + return r; + + r = dsi_vc_send_bta_sync(channel); + + return r; +} +EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size); + +static void dsi_set_lp_rx_timeout(unsigned long ns) +{ + u32 r; + unsigned x4, x16; + unsigned long fck; + unsigned long ticks; + + /* ticks in DSI_FCK */ + + fck = dsi_fclk_rate(); + ticks = (fck / 1000 / 1000) * ns / 1000; + x4 = 0; + x16 = 0; + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 4; + x4 = 1; + x16 = 0; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 16; + x4 = 0; + x16 = 1; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16); + x4 = 1; + x16 = 1; + } + + if (ticks > 0x1fff) { + DSSWARN("LP_TX_TO over limit, setting it to max\n"); + ticks = 0x1fff; + x4 = 1; + x16 = 1; + } + + r = dsi_read_reg(DSI_TIMING2); + r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */ + r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */ + r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */ + r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */ + dsi_write_reg(DSI_TIMING2, r); + + DSSDBG("LP_RX_TO %lu ns (%#lx ticks%s%s)\n", + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / + (fck / 1000 / 1000), + ticks, x4 ? " x4" : "", x16 ? " x16" : ""); +} + +static void dsi_set_ta_timeout(unsigned long ns) +{ + u32 r; + unsigned x8, x16; + unsigned long fck; + unsigned long ticks; + + /* ticks in DSI_FCK */ + fck = dsi_fclk_rate(); + ticks = (fck / 1000 / 1000) * ns / 1000; + x8 = 0; + x16 = 0; + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 8; + x8 = 1; + x16 = 0; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 16; + x8 = 0; + x16 = 1; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / (8 * 16); + x8 = 1; + x16 = 1; + } + + if (ticks > 0x1fff) { + DSSWARN("TA_TO over limit, setting it to max\n"); + ticks = 0x1fff; + x8 = 1; + x16 = 1; + } + + r = dsi_read_reg(DSI_TIMING1); + r = FLD_MOD(r, 1, 31, 31); /* TA_TO */ + r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */ + r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */ + r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */ + dsi_write_reg(DSI_TIMING1, r); + + DSSDBG("TA_TO %lu ns (%#lx ticks%s%s)\n", + (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) / + (fck / 1000 / 1000), + ticks, x8 ? " x8" : "", x16 ? " x16" : ""); +} + +static void dsi_set_stop_state_counter(unsigned long ns) +{ + u32 r; + unsigned x4, x16; + unsigned long fck; + unsigned long ticks; + + /* ticks in DSI_FCK */ + + fck = dsi_fclk_rate(); + ticks = (fck / 1000 / 1000) * ns / 1000; + x4 = 0; + x16 = 0; + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 4; + x4 = 1; + x16 = 0; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 16; + x4 = 0; + x16 = 1; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16); + x4 = 1; + x16 = 1; + } + + if (ticks > 0x1fff) { + DSSWARN("STOP_STATE_COUNTER_IO over limit, " + "setting it to max\n"); + ticks = 0x1fff; + x4 = 1; + x16 = 1; + } + + r = dsi_read_reg(DSI_TIMING1); + r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ + r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */ + r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */ + r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */ + dsi_write_reg(DSI_TIMING1, r); + + DSSDBG("STOP_STATE_COUNTER %lu ns (%#lx ticks%s%s)\n", + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / + (fck / 1000 / 1000), + ticks, x4 ? " x4" : "", x16 ? " x16" : ""); +} + +static void dsi_set_hs_tx_timeout(unsigned long ns) +{ + u32 r; + unsigned x4, x16; + unsigned long fck; + unsigned long ticks; + + /* ticks in TxByteClkHS */ + + fck = dsi_get_txbyteclkhs(); + ticks = (fck / 1000 / 1000) * ns / 1000; + x4 = 0; + x16 = 0; + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 4; + x4 = 1; + x16 = 0; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / 16; + x4 = 0; + x16 = 1; + } + + if (ticks > 0x1fff) { + ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16); + x4 = 1; + x16 = 1; + } + + if (ticks > 0x1fff) { + DSSWARN("HS_TX_TO over limit, setting it to max\n"); + ticks = 0x1fff; + x4 = 1; + x16 = 1; + } + + r = dsi_read_reg(DSI_TIMING2); + r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */ + r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */ + r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */ + r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */ + dsi_write_reg(DSI_TIMING2, r); + + DSSDBG("HS_TX_TO %lu ns (%#lx ticks%s%s)\n", + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / + (fck / 1000 / 1000), + ticks, x4 ? " x4" : "", x16 ? " x16" : ""); +} +static int dsi_proto_config(struct omap_dss_device *dssdev) +{ + u32 r; + int buswidth = 0; + + dsi_config_tx_fifo(DSI_FIFO_SIZE_128, + DSI_FIFO_SIZE_0, + DSI_FIFO_SIZE_0, + DSI_FIFO_SIZE_0); + + dsi_config_rx_fifo(DSI_FIFO_SIZE_128, + DSI_FIFO_SIZE_0, + DSI_FIFO_SIZE_0, + DSI_FIFO_SIZE_0); + + /* XXX what values for the timeouts? */ + dsi_set_stop_state_counter(1000); + dsi_set_ta_timeout(6400000); + dsi_set_lp_rx_timeout(48000); + dsi_set_hs_tx_timeout(1000000); + + switch (dssdev->ctrl.pixel_size) { + case 16: + buswidth = 0; + break; + case 18: + buswidth = 1; + break; + case 24: + buswidth = 2; + break; + default: + BUG(); + } + + r = dsi_read_reg(DSI_CTRL); + r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */ + r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */ + r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */ + r = FLD_MOD(r, 1, 4, 4); /* VP_CLK_RATIO, always 1, see errata*/ + r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */ + r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */ + r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */ + r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */ + r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */ + r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */ + r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */ + + dsi_write_reg(DSI_CTRL, r); + + dsi_vc_initial_config(0); + + /* set all vc targets to peripheral 0 */ + dsi.vc[0].dest_per = 0; + dsi.vc[1].dest_per = 0; + dsi.vc[2].dest_per = 0; + dsi.vc[3].dest_per = 0; + + return 0; +} + +static void dsi_proto_timings(struct omap_dss_device *dssdev) +{ + unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail; + unsigned tclk_pre, tclk_post; + unsigned ths_prepare, ths_prepare_ths_zero, ths_zero; + unsigned ths_trail, ths_exit; + unsigned ddr_clk_pre, ddr_clk_post; + unsigned enter_hs_mode_lat, exit_hs_mode_lat; + unsigned ths_eot; + u32 r; + + r = dsi_read_reg(DSI_DSIPHY_CFG0); + ths_prepare = FLD_GET(r, 31, 24); + ths_prepare_ths_zero = FLD_GET(r, 23, 16); + ths_zero = ths_prepare_ths_zero - ths_prepare; + ths_trail = FLD_GET(r, 15, 8); + ths_exit = FLD_GET(r, 7, 0); + + r = dsi_read_reg(DSI_DSIPHY_CFG1); + tlpx = FLD_GET(r, 22, 16) * 2; + tclk_trail = FLD_GET(r, 15, 8); + tclk_zero = FLD_GET(r, 7, 0); + + r = dsi_read_reg(DSI_DSIPHY_CFG2); + tclk_prepare = FLD_GET(r, 7, 0); + + /* min 8*UI */ + tclk_pre = 20; + /* min 60ns + 52*UI */ + tclk_post = ns2ddr(60) + 26; + + /* ths_eot is 2 for 2 datalanes and 4 for 1 datalane */ + if (dssdev->phy.dsi.data1_lane != 0 && + dssdev->phy.dsi.data2_lane != 0) + ths_eot = 2; + else + ths_eot = 4; + + ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare, + 4); + ddr_clk_post = DIV_ROUND_UP(tclk_post + ths_trail, 4) + ths_eot; + + BUG_ON(ddr_clk_pre == 0 || ddr_clk_pre > 255); + BUG_ON(ddr_clk_post == 0 || ddr_clk_post > 255); + + r = dsi_read_reg(DSI_CLK_TIMING); + r = FLD_MOD(r, ddr_clk_pre, 15, 8); + r = FLD_MOD(r, ddr_clk_post, 7, 0); + dsi_write_reg(DSI_CLK_TIMING, r); + + DSSDBG("ddr_clk_pre %u, ddr_clk_post %u\n", + ddr_clk_pre, + ddr_clk_post); + + enter_hs_mode_lat = 1 + DIV_ROUND_UP(tlpx, 4) + + DIV_ROUND_UP(ths_prepare, 4) + + DIV_ROUND_UP(ths_zero + 3, 4); + + exit_hs_mode_lat = DIV_ROUND_UP(ths_trail + ths_exit, 4) + 1 + ths_eot; + + r = FLD_VAL(enter_hs_mode_lat, 31, 16) | + FLD_VAL(exit_hs_mode_lat, 15, 0); + dsi_write_reg(DSI_VM_TIMING7, r); + + DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n", + enter_hs_mode_lat, exit_hs_mode_lat); +} + + +#define DSI_DECL_VARS \ + int __dsi_cb = 0; u32 __dsi_cv = 0; + +#define DSI_FLUSH(ch) \ + if (__dsi_cb > 0) { \ + /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \ + dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \ + __dsi_cb = __dsi_cv = 0; \ + } + +#define DSI_PUSH(ch, data) \ + do { \ + __dsi_cv |= (data) << (__dsi_cb * 8); \ + /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \ + if (++__dsi_cb > 3) \ + DSI_FLUSH(ch); \ + } while (0) + +static int dsi_update_screen_l4(struct omap_dss_device *dssdev, + int x, int y, int w, int h) +{ + /* Note: supports only 24bit colors in 32bit container */ + int first = 1; + int fifo_stalls = 0; + int max_dsi_packet_size; + int max_data_per_packet; + int max_pixels_per_packet; + int pixels_left; + int bytespp = dssdev->ctrl.pixel_size / 8; + int scr_width; + u32 __iomem *data; + int start_offset; + int horiz_inc; + int current_x; + struct omap_overlay *ovl; + + debug_irq = 0; + + DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n", + x, y, w, h); + + ovl = dssdev->manager->overlays[0]; + + if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U) + return -EINVAL; + + if (dssdev->ctrl.pixel_size != 24) + return -EINVAL; + + scr_width = ovl->info.screen_width; + data = ovl->info.vaddr; + + start_offset = scr_width * y + x; + horiz_inc = scr_width - w; + current_x = x; + + /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes + * in fifo */ + + /* When using CPU, max long packet size is TX buffer size */ + max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4; + + /* we seem to get better perf if we divide the tx fifo to half, + and while the other half is being sent, we fill the other half + max_dsi_packet_size /= 2; */ + + max_data_per_packet = max_dsi_packet_size - 4 - 1; + + max_pixels_per_packet = max_data_per_packet / bytespp; + + DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet); + + pixels_left = w * h; + + DSSDBG("total pixels %d\n", pixels_left); + + data += start_offset; + + while (pixels_left > 0) { + /* 0x2c = write_memory_start */ + /* 0x3c = write_memory_continue */ + u8 dcs_cmd = first ? 0x2c : 0x3c; + int pixels; + DSI_DECL_VARS; + first = 0; + +#if 1 + /* using fifo not empty */ + /* TX_FIFO_NOT_EMPTY */ + while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) { + udelay(1); + fifo_stalls++; + if (fifo_stalls > 0xfffff) { + DSSERR("fifo stalls overflow, pixels left %d\n", + pixels_left); + dsi_if_enable(0); + return -EIO; + } + } +#elif 1 + /* using fifo emptiness */ + while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 < + max_dsi_packet_size) { + fifo_stalls++; + if (fifo_stalls > 0xfffff) { + DSSERR("fifo stalls overflow, pixels left %d\n", + pixels_left); + dsi_if_enable(0); + return -EIO; + } + } +#else + while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) { + fifo_stalls++; + if (fifo_stalls > 0xfffff) { + DSSERR("fifo stalls overflow, pixels left %d\n", + pixels_left); + dsi_if_enable(0); + return -EIO; + } + } +#endif + pixels = min(max_pixels_per_packet, pixels_left); + + pixels_left -= pixels; + + dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE, + 1 + pixels * bytespp, 0); + + DSI_PUSH(0, dcs_cmd); + + while (pixels-- > 0) { + u32 pix = __raw_readl(data++); + + DSI_PUSH(0, (pix >> 16) & 0xff); + DSI_PUSH(0, (pix >> 8) & 0xff); + DSI_PUSH(0, (pix >> 0) & 0xff); + + current_x++; + if (current_x == x+w) { + current_x = x; + data += horiz_inc; + } + } + + DSI_FLUSH(0); + } + + return 0; +} + +static void dsi_update_screen_dispc(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h) +{ + unsigned bytespp; + unsigned bytespl; + unsigned bytespf; + unsigned total_len; + unsigned packet_payload; + unsigned packet_len; + u32 l; + bool use_te_trigger; + const unsigned channel = 0; + /* line buffer is 1024 x 24bits */ + /* XXX: for some reason using full buffer size causes considerable TX + * slowdown with update sizes that fill the whole buffer */ + const unsigned line_buf_size = 1023 * 3; + + use_te_trigger = dsi.te_enabled && !dsi.use_ext_te; + + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) + DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n", + x, y, w, h); + + bytespp = dssdev->ctrl.pixel_size / 8; + bytespl = w * bytespp; + bytespf = bytespl * h; + + /* NOTE: packet_payload has to be equal to N * bytespl, where N is + * number of lines in a packet. See errata about VP_CLK_RATIO */ + + if (bytespf < line_buf_size) + packet_payload = bytespf; + else + packet_payload = (line_buf_size) / bytespl * bytespl; + + packet_len = packet_payload + 1; /* 1 byte for DCS cmd */ + total_len = (bytespf / packet_payload) * packet_len; + + if (bytespf % packet_payload) + total_len += (bytespf % packet_payload) + 1; + + if (0) + dsi_vc_print_status(1); + + l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */ + dsi_write_reg(DSI_VC_TE(channel), l); + + dsi_vc_write_long_header(channel, DSI_DT_DCS_LONG_WRITE, packet_len, 0); + + if (use_te_trigger) + l = FLD_MOD(l, 1, 30, 30); /* TE_EN */ + else + l = FLD_MOD(l, 1, 31, 31); /* TE_START */ + dsi_write_reg(DSI_VC_TE(channel), l); + + /* We put SIDLEMODE to no-idle for the duration of the transfer, + * because DSS interrupts are not capable of waking up the CPU and the + * framedone interrupt could be delayed for quite a long time. I think + * the same goes for any DSS interrupts, but for some reason I have not + * seen the problem anywhere else than here. + */ + dispc_disable_sidle(); + + dss_start_update(dssdev); + + if (use_te_trigger) { + /* disable LP_RX_TO, so that we can receive TE. Time to wait + * for TE is longer than the timer allows */ + REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */ + + dsi_vc_send_bta(channel); + +#ifdef DSI_CATCH_MISSING_TE + mod_timer(&dsi.te_timer, jiffies + msecs_to_jiffies(250)); +#endif + } +} + +#ifdef DSI_CATCH_MISSING_TE +static void dsi_te_timeout(unsigned long arg) +{ + DSSERR("TE not received for 250ms!\n"); +} +#endif + +static void dsi_framedone_irq_callback(void *data, u32 mask) +{ + /* Note: We get FRAMEDONE when DISPC has finished sending pixels and + * turns itself off. However, DSI still has the pixels in its buffers, + * and is sending the data. + */ + + /* SIDLEMODE back to smart-idle */ + dispc_enable_sidle(); + + dsi.framedone_received = true; + wake_up(&dsi.waitqueue); +} + +static void dsi_set_update_region(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h) +{ + spin_lock(&dsi.update_lock); + if (dsi.update_region.dirty) { + dsi.update_region.x = min(x, dsi.update_region.x); + dsi.update_region.y = min(y, dsi.update_region.y); + dsi.update_region.w = max(w, dsi.update_region.w); + dsi.update_region.h = max(h, dsi.update_region.h); + } else { + dsi.update_region.x = x; + dsi.update_region.y = y; + dsi.update_region.w = w; + dsi.update_region.h = h; + } + + dsi.update_region.device = dssdev; + dsi.update_region.dirty = true; + + spin_unlock(&dsi.update_lock); + +} + +static int dsi_set_update_mode(struct omap_dss_device *dssdev, + enum omap_dss_update_mode mode) +{ + int r = 0; + int i; + + WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + + if (dsi.update_mode != mode) { + dsi.update_mode = mode; + + /* Mark the overlays dirty, and do apply(), so that we get the + * overlays configured properly after update mode change. */ + for (i = 0; i < omap_dss_get_num_overlays(); ++i) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + if (ovl->manager == dssdev->manager) + ovl->info_dirty = true; + } + + r = dssdev->manager->apply(dssdev->manager); + + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE && + mode == OMAP_DSS_UPDATE_AUTO) { + u16 w, h; + + DSSDBG("starting auto update\n"); + + dssdev->get_resolution(dssdev, &w, &h); + + dsi_set_update_region(dssdev, 0, 0, w, h); + + dsi_perf_mark_start_auto(); + + wake_up(&dsi.waitqueue); + } + } + + return r; +} + +static int dsi_set_te(struct omap_dss_device *dssdev, bool enable) +{ + int r; + r = dssdev->driver->enable_te(dssdev, enable); + /* XXX for some reason, DSI TE breaks if we don't wait here. + * Panel bug? Needs more studying */ + msleep(100); + return r; +} + +static void dsi_handle_framedone(void) +{ + int r; + const int channel = 0; + bool use_te_trigger; + + use_te_trigger = dsi.te_enabled && !dsi.use_ext_te; + + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) + DSSDBG("FRAMEDONE\n"); + + if (use_te_trigger) { + /* enable LP_RX_TO again after the TE */ + REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */ + } + + /* Send BTA after the frame. We need this for the TE to work, as TE + * trigger is only sent for BTAs without preceding packet. Thus we need + * to BTA after the pixel packets so that next BTA will cause TE + * trigger. + * + * This is not needed when TE is not in use, but we do it anyway to + * make sure that the transfer has been completed. It would be more + * optimal, but more complex, to wait only just before starting next + * transfer. */ + r = dsi_vc_send_bta_sync(channel); + if (r) + DSSERR("BTA after framedone failed\n"); + + /* RX_FIFO_NOT_EMPTY */ + if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { + DSSERR("Received error during frame transfer:\n"); + dsi_vc_flush_receive_data(0); + } + +#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC + dispc_fake_vsync_irq(); +#endif +} + +static int dsi_update_thread(void *data) +{ + unsigned long timeout; + struct omap_dss_device *device; + u16 x, y, w, h; + + while (1) { + bool sched; + + wait_event_interruptible(dsi.waitqueue, + dsi.update_mode == OMAP_DSS_UPDATE_AUTO || + (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL && + dsi.update_region.dirty == true) || + kthread_should_stop()); + + if (kthread_should_stop()) + break; + + dsi_bus_lock(); + + if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED || + kthread_should_stop()) { + dsi_bus_unlock(); + break; + } + + dsi_perf_mark_setup(); + + if (dsi.update_region.dirty) { + spin_lock(&dsi.update_lock); + dsi.active_update_region = dsi.update_region; + dsi.update_region.dirty = false; + spin_unlock(&dsi.update_lock); + } + + device = dsi.active_update_region.device; + x = dsi.active_update_region.x; + y = dsi.active_update_region.y; + w = dsi.active_update_region.w; + h = dsi.active_update_region.h; + + if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { + + if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) + dss_setup_partial_planes(device, + &x, &y, &w, &h); + + dispc_set_lcd_size(w, h); + } + + if (dsi.active_update_region.dirty) { + dsi.active_update_region.dirty = false; + /* XXX TODO we don't need to send the coords, if they + * are the same that are already programmed to the + * panel. That should speed up manual update a bit */ + device->driver->setup_update(device, x, y, w, h); + } + + dsi_perf_mark_start(); + + if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { + dsi_vc_config_vp(0); + + if (dsi.te_enabled && dsi.use_ext_te) + device->driver->wait_for_te(device); + + dsi.framedone_received = false; + + dsi_update_screen_dispc(device, x, y, w, h); + + /* wait for framedone */ + timeout = msecs_to_jiffies(1000); + wait_event_timeout(dsi.waitqueue, + dsi.framedone_received == true, + timeout); + + if (!dsi.framedone_received) { + DSSERR("framedone timeout\n"); + DSSERR("failed update %d,%d %dx%d\n", + x, y, w, h); + + dispc_enable_sidle(); + dispc_enable_lcd_out(0); + + dsi_reset_tx_fifo(0); + } else { + dsi_handle_framedone(); + dsi_perf_show("DISPC"); + } + } else { + dsi_update_screen_l4(device, x, y, w, h); + dsi_perf_show("L4"); + } + + sched = atomic_read(&dsi.bus_lock.count) < 0; + + complete_all(&dsi.update_completion); + + dsi_bus_unlock(); + + /* XXX We need to give others chance to get the bus lock. Is + * there a better way for this? */ + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO && sched) + schedule_timeout_interruptible(1); + } + + DSSDBG("update thread exiting\n"); + + return 0; +} + + + +/* Display funcs */ + +static int dsi_display_init_dispc(struct omap_dss_device *dssdev) +{ + int r; + + r = omap_dispc_register_isr(dsi_framedone_irq_callback, NULL, + DISPC_IRQ_FRAMEDONE); + if (r) { + DSSERR("can't get FRAMEDONE irq\n"); + return r; + } + + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); + + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI); + dispc_enable_fifohandcheck(1); + + dispc_set_tft_data_lines(dssdev->ctrl.pixel_size); + + { + struct omap_video_timings timings = { + .hsw = 1, + .hfp = 1, + .hbp = 1, + .vsw = 1, + .vfp = 0, + .vbp = 0, + }; + + dispc_set_lcd_timings(&timings); + } + + return 0; +} + +static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev) +{ + omap_dispc_unregister_isr(dsi_framedone_irq_callback, NULL, + DISPC_IRQ_FRAMEDONE); +} + +static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev) +{ + struct dsi_clock_info cinfo; + int r; + + /* we always use DSS2_FCK as input clock */ + cinfo.use_dss2_fck = true; + cinfo.regn = dssdev->phy.dsi.div.regn; + cinfo.regm = dssdev->phy.dsi.div.regm; + cinfo.regm3 = dssdev->phy.dsi.div.regm3; + cinfo.regm4 = dssdev->phy.dsi.div.regm4; + r = dsi_calc_clock_rates(&cinfo); + if (r) + return r; + + r = dsi_pll_set_clock_div(&cinfo); + if (r) { + DSSERR("Failed to set dsi clocks\n"); + return r; + } + + return 0; +} + +static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev) +{ + struct dispc_clock_info dispc_cinfo; + int r; + unsigned long long fck; + + fck = dsi_get_dsi1_pll_rate(); + + dispc_cinfo.lck_div = dssdev->phy.dsi.div.lck_div; + dispc_cinfo.pck_div = dssdev->phy.dsi.div.pck_div; + + r = dispc_calc_clock_rates(fck, &dispc_cinfo); + if (r) { + DSSERR("Failed to calc dispc clocks\n"); + return r; + } + + r = dispc_set_clock_div(&dispc_cinfo); + if (r) { + DSSERR("Failed to set dispc clocks\n"); + return r; + } + + return 0; +} + +static int dsi_display_init_dsi(struct omap_dss_device *dssdev) +{ + int r; + + _dsi_print_reset_status(); + + r = dsi_pll_init(dssdev, true, true); + if (r) + goto err0; + + r = dsi_configure_dsi_clocks(dssdev); + if (r) + goto err1; + + dss_select_clk_source(true, true); + + DSSDBG("PLL OK\n"); + + r = dsi_configure_dispc_clocks(dssdev); + if (r) + goto err2; + + r = dsi_complexio_init(dssdev); + if (r) + goto err2; + + _dsi_print_reset_status(); + + dsi_proto_timings(dssdev); + dsi_set_lp_clk_divisor(dssdev); + + if (1) + _dsi_print_reset_status(); + + r = dsi_proto_config(dssdev); + if (r) + goto err3; + + /* enable interface */ + dsi_vc_enable(0, 1); + dsi_if_enable(1); + dsi_force_tx_stop_mode_io(); + + if (dssdev->driver->enable) { + r = dssdev->driver->enable(dssdev); + if (r) + goto err4; + } + + /* enable high-speed after initial config */ + dsi_vc_enable_hs(0, 1); + + return 0; +err4: + dsi_if_enable(0); +err3: + dsi_complexio_uninit(); +err2: + dss_select_clk_source(false, false); +err1: + dsi_pll_uninit(); +err0: + return r; +} + +static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev) +{ + if (dssdev->driver->disable) + dssdev->driver->disable(dssdev); + + dss_select_clk_source(false, false); + dsi_complexio_uninit(); + dsi_pll_uninit(); +} + +static int dsi_core_init(void) +{ + /* Autoidle */ + REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0); + + /* ENWAKEUP */ + REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2); + + /* SIDLEMODE smart-idle */ + REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3); + + _dsi_initialize_irq(); + + return 0; +} + +static int dsi_display_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + DSSDBG("dsi_display_enable\n"); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + r = omap_dss_start_device(dssdev); + if (r) { + DSSERR("failed to start device\n"); + goto err0; + } + + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { + DSSERR("dssdev already enabled\n"); + r = -EINVAL; + goto err1; + } + + enable_clocks(1); + dsi_enable_pll_clock(1); + + r = _dsi_reset(); + if (r) + goto err2; + + dsi_core_init(); + + r = dsi_display_init_dispc(dssdev); + if (r) + goto err2; + + r = dsi_display_init_dsi(dssdev); + if (r) + goto err3; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + dsi.use_ext_te = dssdev->phy.dsi.ext_te; + r = dsi_set_te(dssdev, dsi.te_enabled); + if (r) + goto err4; + + dsi_set_update_mode(dssdev, dsi.user_update_mode); + + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + + return 0; + +err4: + + dsi_display_uninit_dsi(dssdev); +err3: + dsi_display_uninit_dispc(dssdev); +err2: + enable_clocks(0); + dsi_enable_pll_clock(0); +err1: + omap_dss_stop_device(dssdev); +err0: + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + DSSDBG("dsi_display_enable FAILED\n"); + return r; +} + +static void dsi_display_disable(struct omap_dss_device *dssdev) +{ + DSSDBG("dsi_display_disable\n"); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || + dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) + goto end; + + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; + + dsi_display_uninit_dispc(dssdev); + + dsi_display_uninit_dsi(dssdev); + + enable_clocks(0); + dsi_enable_pll_clock(0); + + omap_dss_stop_device(dssdev); +end: + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); +} + +static int dsi_display_suspend(struct omap_dss_device *dssdev) +{ + DSSDBG("dsi_display_suspend\n"); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || + dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) + goto end; + + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; + + dsi_display_uninit_dispc(dssdev); + + dsi_display_uninit_dsi(dssdev); + + enable_clocks(0); + dsi_enable_pll_clock(0); +end: + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + + return 0; +} + +static int dsi_display_resume(struct omap_dss_device *dssdev) +{ + int r; + + DSSDBG("dsi_display_resume\n"); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) { + DSSERR("dssdev not suspended\n"); + r = -EINVAL; + goto err0; + } + + enable_clocks(1); + dsi_enable_pll_clock(1); + + r = _dsi_reset(); + if (r) + goto err1; + + dsi_core_init(); + + r = dsi_display_init_dispc(dssdev); + if (r) + goto err1; + + r = dsi_display_init_dsi(dssdev); + if (r) + goto err2; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + r = dsi_set_te(dssdev, dsi.te_enabled); + if (r) + goto err2; + + dsi_set_update_mode(dssdev, dsi.user_update_mode); + + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + + return 0; + +err2: + dsi_display_uninit_dispc(dssdev); +err1: + enable_clocks(0); + dsi_enable_pll_clock(0); +err0: + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + DSSDBG("dsi_display_resume FAILED\n"); + return r; +} + +static int dsi_display_update(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h) +{ + int r = 0; + u16 dw, dh; + + DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h); + + mutex_lock(&dsi.lock); + + if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL) + goto end; + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + goto end; + + dssdev->get_resolution(dssdev, &dw, &dh); + + if (x > dw || y > dh) + goto end; + + if (x + w > dw) + w = dw - x; + + if (y + h > dh) + h = dh - y; + + if (w == 0 || h == 0) + goto end; + + if (w == 1) { + r = -EINVAL; + goto end; + } + + dsi_set_update_region(dssdev, x, y, w, h); + + wake_up(&dsi.waitqueue); + +end: + mutex_unlock(&dsi.lock); + + return r; +} + +static int dsi_display_sync(struct omap_dss_device *dssdev) +{ + bool wait; + + DSSDBG("dsi_display_sync()\n"); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL && + dsi.update_region.dirty) { + INIT_COMPLETION(dsi.update_completion); + wait = true; + } else { + wait = false; + } + + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + + if (wait) + wait_for_completion_interruptible(&dsi.update_completion); + + DSSDBG("dsi_display_sync() done\n"); + return 0; +} + +static int dsi_display_set_update_mode(struct omap_dss_device *dssdev, + enum omap_dss_update_mode mode) +{ + int r = 0; + + DSSDBGF("%d", mode); + + mutex_lock(&dsi.lock); + dsi_bus_lock(); + + dsi.user_update_mode = mode; + r = dsi_set_update_mode(dssdev, mode); + + dsi_bus_unlock(); + mutex_unlock(&dsi.lock); + + return r; +} + +static enum omap_dss_update_mode dsi_display_get_update_mode( + struct omap_dss_device *dssdev) +{ + return dsi.update_mode; +} + + +static int dsi_display_enable_te(struct omap_dss_device *dssdev, bool enable) +{ + int r = 0; + + DSSDBGF("%d", enable); + + if (!dssdev->driver->enable_te) + return -ENOENT; + + dsi_bus_lock(); + + dsi.te_enabled = enable; + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + goto end; + + r = dsi_set_te(dssdev, enable); +end: + dsi_bus_unlock(); + + return r; +} + +static int dsi_display_get_te(struct omap_dss_device *dssdev) +{ + return dsi.te_enabled; +} + +static int dsi_display_set_rotate(struct omap_dss_device *dssdev, u8 rotate) +{ + + DSSDBGF("%d", rotate); + + if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate) + return -EINVAL; + + dsi_bus_lock(); + dssdev->driver->set_rotate(dssdev, rotate); + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { + u16 w, h; + /* the display dimensions may have changed, so set a new + * update region */ + dssdev->get_resolution(dssdev, &w, &h); + dsi_set_update_region(dssdev, 0, 0, w, h); + } + dsi_bus_unlock(); + + return 0; +} + +static u8 dsi_display_get_rotate(struct omap_dss_device *dssdev) +{ + if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate) + return 0; + + return dssdev->driver->get_rotate(dssdev); +} + +static int dsi_display_set_mirror(struct omap_dss_device *dssdev, bool mirror) +{ + DSSDBGF("%d", mirror); + + if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror) + return -EINVAL; + + dsi_bus_lock(); + dssdev->driver->set_mirror(dssdev, mirror); + dsi_bus_unlock(); + + return 0; +} + +static bool dsi_display_get_mirror(struct omap_dss_device *dssdev) +{ + if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror) + return 0; + + return dssdev->driver->get_mirror(dssdev); +} + +static int dsi_display_run_test(struct omap_dss_device *dssdev, int test_num) +{ + int r; + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return -EIO; + + DSSDBGF("%d", test_num); + + dsi_bus_lock(); + + /* run test first in low speed mode */ + dsi_vc_enable_hs(0, 0); + + if (dssdev->driver->run_test) { + r = dssdev->driver->run_test(dssdev, test_num); + if (r) + goto end; + } + + /* then in high speed */ + dsi_vc_enable_hs(0, 1); + + if (dssdev->driver->run_test) { + r = dssdev->driver->run_test(dssdev, test_num); + if (r) + goto end; + } + +end: + dsi_vc_enable_hs(0, 1); + + dsi_bus_unlock(); + + return r; +} + +static int dsi_display_memory_read(struct omap_dss_device *dssdev, + void *buf, size_t size, + u16 x, u16 y, u16 w, u16 h) +{ + int r; + + DSSDBGF(""); + + if (!dssdev->driver->memory_read) + return -EINVAL; + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return -EIO; + + dsi_bus_lock(); + + r = dssdev->driver->memory_read(dssdev, buf, size, + x, y, w, h); + + /* Memory read usually changes the update area. This will + * force the next update to re-set the update area */ + dsi.active_update_region.dirty = true; + + dsi_bus_unlock(); + + return r; +} + +void dsi_get_overlay_fifo_thresholds(enum omap_plane plane, + u32 fifo_size, enum omap_burst_size *burst_size, + u32 *fifo_low, u32 *fifo_high) +{ + unsigned burst_size_bytes; + + *burst_size = OMAP_DSS_BURST_16x32; + burst_size_bytes = 16 * 32 / 8; + + *fifo_high = fifo_size - burst_size_bytes; + *fifo_low = fifo_size - burst_size_bytes * 8; +} + +int dsi_init_display(struct omap_dss_device *dssdev) +{ + DSSDBG("DSI init\n"); + + dssdev->enable = dsi_display_enable; + dssdev->disable = dsi_display_disable; + dssdev->suspend = dsi_display_suspend; + dssdev->resume = dsi_display_resume; + dssdev->update = dsi_display_update; + dssdev->sync = dsi_display_sync; + dssdev->set_update_mode = dsi_display_set_update_mode; + dssdev->get_update_mode = dsi_display_get_update_mode; + dssdev->enable_te = dsi_display_enable_te; + dssdev->get_te = dsi_display_get_te; + + dssdev->get_rotate = dsi_display_get_rotate; + dssdev->set_rotate = dsi_display_set_rotate; + + dssdev->get_mirror = dsi_display_get_mirror; + dssdev->set_mirror = dsi_display_set_mirror; + + dssdev->run_test = dsi_display_run_test; + dssdev->memory_read = dsi_display_memory_read; + + /* XXX these should be figured out dynamically */ + dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE | + OMAP_DSS_DISPLAY_CAP_TEAR_ELIM; + + dsi.vc[0].dssdev = dssdev; + dsi.vc[1].dssdev = dssdev; + + return 0; +} + +int dsi_init(struct platform_device *pdev) +{ + u32 rev; + int r; + struct sched_param param = { + .sched_priority = MAX_USER_RT_PRIO-1 + }; + + spin_lock_init(&dsi.errors_lock); + dsi.errors = 0; + + init_completion(&dsi.bta_completion); + init_completion(&dsi.update_completion); + + dsi.thread = kthread_create(dsi_update_thread, NULL, "dsi"); + if (IS_ERR(dsi.thread)) { + DSSERR("cannot create kthread\n"); + r = PTR_ERR(dsi.thread); + goto err0; + } + sched_setscheduler(dsi.thread, SCHED_FIFO, ¶m); + + init_waitqueue_head(&dsi.waitqueue); + spin_lock_init(&dsi.update_lock); + + mutex_init(&dsi.lock); + mutex_init(&dsi.bus_lock); + +#ifdef DSI_CATCH_MISSING_TE + init_timer(&dsi.te_timer); + dsi.te_timer.function = dsi_te_timeout; + dsi.te_timer.data = 0; +#endif + + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; + dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED; + + dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS); + if (!dsi.base) { + DSSERR("can't ioremap DSI\n"); + r = -ENOMEM; + goto err1; + } + + dsi.vdds_dsi_reg = regulator_get(&pdev->dev, "vdds_dsi"); + if (IS_ERR(dsi.vdds_dsi_reg)) { + iounmap(dsi.base); + DSSERR("can't get VDDS_DSI regulator\n"); + r = PTR_ERR(dsi.vdds_dsi_reg); + goto err2; + } + + enable_clocks(1); + + rev = dsi_read_reg(DSI_REVISION); + printk(KERN_INFO "OMAP DSI rev %d.%d\n", + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); + + enable_clocks(0); + + wake_up_process(dsi.thread); + + return 0; +err2: + iounmap(dsi.base); +err1: + kthread_stop(dsi.thread); +err0: + return r; +} + +void dsi_exit(void) +{ + kthread_stop(dsi.thread); + + regulator_put(dsi.vdds_dsi_reg); + + iounmap(dsi.base); + + DSSDBG("omap_dsi_exit\n"); +} + -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 15/19] OMAP: DSS2: omapfb driver 2009-11-09 11:45 ` [PATCH 14/19] OMAP: DSS2: DSI driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 16/19] OMAP: DSS2: Add DPI panel drivers Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- arch/arm/plat-omap/fb.c | 39 +- drivers/video/omap/Kconfig | 5 +- drivers/video/omap2/Kconfig | 1 + drivers/video/omap2/Makefile | 1 + drivers/video/omap2/omapfb/Kconfig | 37 + drivers/video/omap2/omapfb/Makefile | 2 + drivers/video/omap2/omapfb/omapfb-ioctl.c | 755 ++++++++++ drivers/video/omap2/omapfb/omapfb-main.c | 2261 +++++++++++++++++++++++++++++ drivers/video/omap2/omapfb/omapfb-sysfs.c | 507 +++++++ drivers/video/omap2/omapfb/omapfb.h | 146 ++ include/linux/omapfb.h | 54 + 11 files changed, 3805 insertions(+), 3 deletions(-) create mode 100644 drivers/video/omap2/omapfb/Kconfig create mode 100644 drivers/video/omap2/omapfb/Makefile create mode 100644 drivers/video/omap2/omapfb/omapfb-ioctl.c create mode 100644 drivers/video/omap2/omapfb/omapfb-main.c create mode 100644 drivers/video/omap2/omapfb/omapfb-sysfs.c create mode 100644 drivers/video/omap2/omapfb/omapfb.h diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index 18cf1d4..f9049f8 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -327,7 +327,33 @@ static inline int omap_init_fb(void) arch_initcall(omap_init_fb); -#else +#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) + +static u64 omap_fb_dma_mask = ~(u32)0; +static struct omapfb_platform_data omapfb_config; + +static struct platform_device omap_fb_device = { + .name = "omapfb", + .id = -1, + .dev = { + .dma_mask = &omap_fb_dma_mask, + .coherent_dma_mask = ~(u32)0, + .platform_data = &omapfb_config, + }, + .num_resources = 0, +}; + +void omapfb_set_platform_data(struct omapfb_platform_data *data) +{ + omapfb_config = *data; +} + +static inline int omap_init_fb(void) +{ + return platform_device_register(&omap_fb_device); +} + +arch_initcall(omap_init_fb); void omapfb_reserve_sdram(void) {} unsigned long omapfb_reserve_sram(unsigned long sram_pstart, @@ -339,5 +365,16 @@ unsigned long omapfb_reserve_sram(unsigned long sram_pstart, return 0; } +#else + +void omapfb_reserve_sdram(void) {} +unsigned long omapfb_reserve_sram(unsigned long sram_pstart, + unsigned long sram_vstart, + unsigned long sram_size, + unsigned long start_avail, + unsigned long size_avail) +{ + return 0; +} #endif diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig index 551e3e9..455c605 100644 --- a/drivers/video/omap/Kconfig +++ b/drivers/video/omap/Kconfig @@ -1,6 +1,7 @@ config FB_OMAP tristate "OMAP frame buffer support (EXPERIMENTAL)" - depends on FB && ARCH_OMAP + depends on FB && ARCH_OMAP && (OMAP2_DSS = "n") + select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -72,7 +73,7 @@ config FB_OMAP_LCD_MIPID config FB_OMAP_BOOTLOADER_INIT bool "Check bootloader initialization" - depends on FB_OMAP + depends on FB_OMAP || FB_OMAP2 help Say Y here if you want to enable checking if the bootloader has already initialized the display controller. In this case the diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig index 55b4c42..3e60d7e 100644 --- a/drivers/video/omap2/Kconfig +++ b/drivers/video/omap2/Kconfig @@ -5,3 +5,4 @@ config OMAP2_VRFB bool source "drivers/video/omap2/dss/Kconfig" +source "drivers/video/omap2/omapfb/Kconfig" diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile index ee0644f..3ba6ef5 100644 --- a/drivers/video/omap2/Makefile +++ b/drivers/video/omap2/Makefile @@ -2,3 +2,4 @@ obj-$(CONFIG_OMAP2_VRAM) += vram.o obj-$(CONFIG_OMAP2_VRFB) += vrfb.o obj-y += dss/ +obj-y += omapfb/ diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig new file mode 100644 index 0000000..bb694cc --- /dev/null +++ b/drivers/video/omap2/omapfb/Kconfig @@ -0,0 +1,37 @@ +menuconfig FB_OMAP2 + tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)" + depends on FB && OMAP2_DSS + + select OMAP2_VRAM + select OMAP2_VRFB + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + Frame buffer driver for OMAP2/3 based boards. + +config FB_OMAP2_DEBUG_SUPPORT + bool "Debug support for OMAP2/3 FB" + default y + depends on FB_OMAP2 + help + Support for debug output. You have to enable the actual printing + with debug module parameter. + +config FB_OMAP2_FORCE_AUTO_UPDATE + bool "Force main display to automatic update mode" + depends on FB_OMAP2 + help + Forces main display to automatic update mode (if possible), + and also enables tearsync (if possible). By default + displays that support manual update are started in manual + update mode. + +config FB_OMAP2_NUM_FBS + int "Number of framebuffers" + range 1 10 + default 3 + depends on FB_OMAP2 + help + Select the number of framebuffers created. OMAP2/3 has 3 overlays + so normally this would be 3. diff --git a/drivers/video/omap2/omapfb/Makefile b/drivers/video/omap2/omapfb/Makefile new file mode 100644 index 0000000..51c2e00 --- /dev/null +++ b/drivers/video/omap2/omapfb/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_FB_OMAP2) += omapfb.o +omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c new file mode 100644 index 0000000..4c4bafd --- /dev/null +++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c @@ -0,0 +1,755 @@ +/* + * linux/drivers/video/omap2/omapfb-ioctl.c + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/fb.h> +#include <linux/device.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/mm.h> +#include <linux/omapfb.h> +#include <linux/vmalloc.h> + +#include <plat/display.h> +#include <plat/vrfb.h> +#include <plat/vram.h> + +#include "omapfb.h" + +static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_overlay *ovl; + struct omap_overlay_info info; + int r = 0; + + DBG("omapfb_setup_plane\n"); + + if (ofbi->num_overlays != 1) { + r = -EINVAL; + goto out; + } + + /* XXX uses only the first overlay */ + ovl = ofbi->overlays[0]; + + if (pi->enabled && !ofbi->region.size) { + /* + * This plane's memory was freed, can't enable it + * until it's reallocated. + */ + r = -EINVAL; + goto out; + } + + ovl->get_overlay_info(ovl, &info); + + info.pos_x = pi->pos_x; + info.pos_y = pi->pos_y; + info.out_width = pi->out_width; + info.out_height = pi->out_height; + info.enabled = pi->enabled; + + r = ovl->set_overlay_info(ovl, &info); + if (r) + goto out; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + goto out; + } + +out: + if (r) + dev_err(fbdev->dev, "setup_plane failed\n"); + return r; +} + +static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + + if (ofbi->num_overlays != 1) { + memset(pi, 0, sizeof(*pi)); + } else { + struct omap_overlay_info *ovli; + struct omap_overlay *ovl; + + ovl = ofbi->overlays[0]; + ovli = &ovl->info; + + pi->pos_x = ovli->pos_x; + pi->pos_y = ovli->pos_y; + pi->enabled = ovli->enabled; + pi->channel_out = 0; /* xxx */ + pi->mirror = 0; + pi->out_width = ovli->out_width; + pi->out_height = ovli->out_height; + } + + return 0; +} + +static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omapfb2_mem_region *rg; + int r, i; + size_t size; + + if (mi->type > OMAPFB_MEMTYPE_MAX) + return -EINVAL; + + size = PAGE_ALIGN(mi->size); + + rg = &ofbi->region; + + for (i = 0; i < ofbi->num_overlays; i++) { + if (ofbi->overlays[i]->info.enabled) + return -EBUSY; + } + + if (rg->size != size || rg->type != mi->type) { + r = omapfb_realloc_fbmem(fbi, size, mi->type); + if (r) { + dev_err(fbdev->dev, "realloc fbmem failed\n"); + return r; + } + } + + return 0; +} + +static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_mem_region *rg; + + rg = &ofbi->region; + memset(mi, 0, sizeof(*mi)); + + mi->size = rg->size; + mi->type = rg->type; + + return 0; +} + +static int omapfb_update_window_nolock(struct fb_info *fbi, + u32 x, u32 y, u32 w, u32 h) +{ + struct omap_dss_device *display = fb2display(fbi); + u16 dw, dh; + + if (!display) + return 0; + + if (w == 0 || h == 0) + return 0; + + display->get_resolution(display, &dw, &dh); + + if (x + w > dw || y + h > dh) + return -EINVAL; + + return display->update(display, x, y, w, h); +} + +/* This function is exported for SGX driver use */ +int omapfb_update_window(struct fb_info *fbi, + u32 x, u32 y, u32 w, u32 h) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + int r; + + omapfb_lock(fbdev); + lock_fb_info(fbi); + + r = omapfb_update_window_nolock(fbi, x, y, w, h); + + unlock_fb_info(fbi); + omapfb_unlock(fbdev); + + return r; +} +EXPORT_SYMBOL(omapfb_update_window); + +static int omapfb_set_update_mode(struct fb_info *fbi, + enum omapfb_update_mode mode) +{ + struct omap_dss_device *display = fb2display(fbi); + enum omap_dss_update_mode um; + int r; + + if (!display || !display->set_update_mode) + return -EINVAL; + + switch (mode) { + case OMAPFB_UPDATE_DISABLED: + um = OMAP_DSS_UPDATE_DISABLED; + break; + + case OMAPFB_AUTO_UPDATE: + um = OMAP_DSS_UPDATE_AUTO; + break; + + case OMAPFB_MANUAL_UPDATE: + um = OMAP_DSS_UPDATE_MANUAL; + break; + + default: + return -EINVAL; + } + + r = display->set_update_mode(display, um); + + return r; +} + +static int omapfb_get_update_mode(struct fb_info *fbi, + enum omapfb_update_mode *mode) +{ + struct omap_dss_device *display = fb2display(fbi); + enum omap_dss_update_mode m; + + if (!display || !display->get_update_mode) + return -EINVAL; + + m = display->get_update_mode(display); + + switch (m) { + case OMAP_DSS_UPDATE_DISABLED: + *mode = OMAPFB_UPDATE_DISABLED; + break; + case OMAP_DSS_UPDATE_AUTO: + *mode = OMAPFB_AUTO_UPDATE; + break; + case OMAP_DSS_UPDATE_MANUAL: + *mode = OMAPFB_MANUAL_UPDATE; + break; + default: + BUG(); + } + + return 0; +} + +/* XXX this color key handling is a hack... */ +static struct omapfb_color_key omapfb_color_keys[2]; + +static int _omapfb_set_color_key(struct omap_overlay_manager *mgr, + struct omapfb_color_key *ck) +{ + struct omap_overlay_manager_info info; + enum omap_dss_trans_key_type kt; + int r; + + mgr->get_manager_info(mgr, &info); + + if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) { + info.trans_enabled = false; + omapfb_color_keys[mgr->id] = *ck; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + + return r; + } + + switch (ck->key_type) { + case OMAPFB_COLOR_KEY_GFX_DST: + kt = OMAP_DSS_COLOR_KEY_GFX_DST; + break; + case OMAPFB_COLOR_KEY_VID_SRC: + kt = OMAP_DSS_COLOR_KEY_VID_SRC; + break; + default: + return -EINVAL; + } + + info.default_color = ck->background; + info.trans_key = ck->trans_key; + info.trans_key_type = kt; + info.trans_enabled = true; + + omapfb_color_keys[mgr->id] = *ck; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + + return r; +} + +static int omapfb_set_color_key(struct fb_info *fbi, + struct omapfb_color_key *ck) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + int r; + int i; + struct omap_overlay_manager *mgr = NULL; + + omapfb_lock(fbdev); + + for (i = 0; i < ofbi->num_overlays; i++) { + if (ofbi->overlays[i]->manager) { + mgr = ofbi->overlays[i]->manager; + break; + } + } + + if (!mgr) { + r = -EINVAL; + goto err; + } + + r = _omapfb_set_color_key(mgr, ck); +err: + omapfb_unlock(fbdev); + + return r; +} + +static int omapfb_get_color_key(struct fb_info *fbi, + struct omapfb_color_key *ck) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_overlay_manager *mgr = NULL; + int r = 0; + int i; + + omapfb_lock(fbdev); + + for (i = 0; i < ofbi->num_overlays; i++) { + if (ofbi->overlays[i]->manager) { + mgr = ofbi->overlays[i]->manager; + break; + } + } + + if (!mgr) { + r = -EINVAL; + goto err; + } + + *ck = omapfb_color_keys[mgr->id]; +err: + omapfb_unlock(fbdev); + + return r; +} + +static int omapfb_memory_read(struct fb_info *fbi, + struct omapfb_memory_read *mr) +{ + struct omap_dss_device *display = fb2display(fbi); + void *buf; + int r; + + if (!display || !display->memory_read) + return -ENOENT; + + if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size)) + return -EFAULT; + + if (mr->w * mr->h * 3 > mr->buffer_size) + return -EINVAL; + + buf = vmalloc(mr->buffer_size); + if (!buf) { + DBG("vmalloc failed\n"); + return -ENOMEM; + } + + r = display->memory_read(display, buf, mr->buffer_size, + mr->x, mr->y, mr->w, mr->h); + + if (r > 0) { + if (copy_to_user(mr->buffer, buf, mr->buffer_size)) + r = -EFAULT; + } + + vfree(buf); + + return r; +} + +static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev, + struct omapfb_ovl_colormode *mode) +{ + int ovl_idx = mode->overlay_idx; + int mode_idx = mode->mode_idx; + struct omap_overlay *ovl; + enum omap_color_mode supported_modes; + struct fb_var_screeninfo var; + int i; + + if (ovl_idx >= fbdev->num_overlays) + return -ENODEV; + ovl = fbdev->overlays[ovl_idx]; + supported_modes = ovl->supported_modes; + + mode_idx = mode->mode_idx; + + for (i = 0; i < sizeof(supported_modes) * 8; i++) { + if (!(supported_modes & (1 << i))) + continue; + /* + * It's possible that the FB doesn't support a mode + * that is supported by the overlay, so call the + * following here. + */ + if (dss_mode_to_fb_mode(1 << i, &var) < 0) + continue; + + mode_idx--; + if (mode_idx < 0) + break; + } + + if (i == sizeof(supported_modes) * 8) + return -ENOENT; + + mode->bits_per_pixel = var.bits_per_pixel; + mode->nonstd = var.nonstd; + mode->red = var.red; + mode->green = var.green; + mode->blue = var.blue; + mode->transp = var.transp; + + return 0; +} + +static int omapfb_wait_for_go(struct fb_info *fbi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + int r = 0; + int i; + + for (i = 0; i < ofbi->num_overlays; ++i) { + struct omap_overlay *ovl = ofbi->overlays[i]; + r = ovl->wait_for_go(ovl); + if (r) + break; + } + + return r; +} + +int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_dss_device *display = fb2display(fbi); + + union { + struct omapfb_update_window_old uwnd_o; + struct omapfb_update_window uwnd; + struct omapfb_plane_info plane_info; + struct omapfb_caps caps; + struct omapfb_mem_info mem_info; + struct omapfb_color_key color_key; + struct omapfb_ovl_colormode ovl_colormode; + enum omapfb_update_mode update_mode; + int test_num; + struct omapfb_memory_read memory_read; + struct omapfb_vram_info vram_info; + struct omapfb_tearsync_info tearsync_info; + } p; + + int r = 0; + + switch (cmd) { + case OMAPFB_SYNC_GFX: + DBG("ioctl SYNC_GFX\n"); + if (!display || !display->sync) { + /* DSS1 never returns an error here, so we neither */ + /*r = -EINVAL;*/ + break; + } + + r = display->sync(display); + break; + + case OMAPFB_UPDATE_WINDOW_OLD: + DBG("ioctl UPDATE_WINDOW_OLD\n"); + if (!display || !display->update) { + r = -EINVAL; + break; + } + + if (copy_from_user(&p.uwnd_o, + (void __user *)arg, + sizeof(p.uwnd_o))) { + r = -EFAULT; + break; + } + + r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y, + p.uwnd_o.width, p.uwnd_o.height); + break; + + case OMAPFB_UPDATE_WINDOW: + DBG("ioctl UPDATE_WINDOW\n"); + if (!display || !display->update) { + r = -EINVAL; + break; + } + + if (copy_from_user(&p.uwnd, (void __user *)arg, + sizeof(p.uwnd))) { + r = -EFAULT; + break; + } + + r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y, + p.uwnd.width, p.uwnd.height); + break; + + case OMAPFB_SETUP_PLANE: + DBG("ioctl SETUP_PLANE\n"); + if (copy_from_user(&p.plane_info, (void __user *)arg, + sizeof(p.plane_info))) + r = -EFAULT; + else + r = omapfb_setup_plane(fbi, &p.plane_info); + break; + + case OMAPFB_QUERY_PLANE: + DBG("ioctl QUERY_PLANE\n"); + r = omapfb_query_plane(fbi, &p.plane_info); + if (r < 0) + break; + if (copy_to_user((void __user *)arg, &p.plane_info, + sizeof(p.plane_info))) + r = -EFAULT; + break; + + case OMAPFB_SETUP_MEM: + DBG("ioctl SETUP_MEM\n"); + if (copy_from_user(&p.mem_info, (void __user *)arg, + sizeof(p.mem_info))) + r = -EFAULT; + else + r = omapfb_setup_mem(fbi, &p.mem_info); + break; + + case OMAPFB_QUERY_MEM: + DBG("ioctl QUERY_MEM\n"); + r = omapfb_query_mem(fbi, &p.mem_info); + if (r < 0) + break; + if (copy_to_user((void __user *)arg, &p.mem_info, + sizeof(p.mem_info))) + r = -EFAULT; + break; + + case OMAPFB_GET_CAPS: + DBG("ioctl GET_CAPS\n"); + if (!display) { + r = -EINVAL; + break; + } + + memset(&p.caps, 0, sizeof(p.caps)); + if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) + p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE; + if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM) + p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC; + + if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) + r = -EFAULT; + break; + + case OMAPFB_GET_OVERLAY_COLORMODE: + DBG("ioctl GET_OVERLAY_COLORMODE\n"); + if (copy_from_user(&p.ovl_colormode, (void __user *)arg, + sizeof(p.ovl_colormode))) { + r = -EFAULT; + break; + } + r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode); + if (r < 0) + break; + if (copy_to_user((void __user *)arg, &p.ovl_colormode, + sizeof(p.ovl_colormode))) + r = -EFAULT; + break; + + case OMAPFB_SET_UPDATE_MODE: + DBG("ioctl SET_UPDATE_MODE\n"); + if (get_user(p.update_mode, (int __user *)arg)) + r = -EFAULT; + else + r = omapfb_set_update_mode(fbi, p.update_mode); + break; + + case OMAPFB_GET_UPDATE_MODE: + DBG("ioctl GET_UPDATE_MODE\n"); + r = omapfb_get_update_mode(fbi, &p.update_mode); + if (r) + break; + if (put_user(p.update_mode, + (enum omapfb_update_mode __user *)arg)) + r = -EFAULT; + break; + + case OMAPFB_SET_COLOR_KEY: + DBG("ioctl SET_COLOR_KEY\n"); + if (copy_from_user(&p.color_key, (void __user *)arg, + sizeof(p.color_key))) + r = -EFAULT; + else + r = omapfb_set_color_key(fbi, &p.color_key); + break; + + case OMAPFB_GET_COLOR_KEY: + DBG("ioctl GET_COLOR_KEY\n"); + r = omapfb_get_color_key(fbi, &p.color_key); + if (r) + break; + if (copy_to_user((void __user *)arg, &p.color_key, + sizeof(p.color_key))) + r = -EFAULT; + break; + + case OMAPFB_WAITFORVSYNC: + DBG("ioctl WAITFORVSYNC\n"); + if (!display) { + r = -EINVAL; + break; + } + + r = display->wait_vsync(display); + break; + + case OMAPFB_WAITFORGO: + DBG("ioctl WAITFORGO\n"); + if (!display) { + r = -EINVAL; + break; + } + + r = omapfb_wait_for_go(fbi); + break; + + /* LCD and CTRL tests do the same thing for backward + * compatibility */ + case OMAPFB_LCD_TEST: + DBG("ioctl LCD_TEST\n"); + if (get_user(p.test_num, (int __user *)arg)) { + r = -EFAULT; + break; + } + if (!display || !display->run_test) { + r = -EINVAL; + break; + } + + r = display->run_test(display, p.test_num); + + break; + + case OMAPFB_CTRL_TEST: + DBG("ioctl CTRL_TEST\n"); + if (get_user(p.test_num, (int __user *)arg)) { + r = -EFAULT; + break; + } + if (!display || !display->run_test) { + r = -EINVAL; + break; + } + + r = display->run_test(display, p.test_num); + + break; + + case OMAPFB_MEMORY_READ: + DBG("ioctl MEMORY_READ\n"); + + if (copy_from_user(&p.memory_read, (void __user *)arg, + sizeof(p.memory_read))) { + r = -EFAULT; + break; + } + + r = omapfb_memory_read(fbi, &p.memory_read); + + break; + + case OMAPFB_GET_VRAM_INFO: { + unsigned long vram, free, largest; + + DBG("ioctl GET_VRAM_INFO\n"); + + omap_vram_get_info(&vram, &free, &largest); + p.vram_info.total = vram; + p.vram_info.free = free; + p.vram_info.largest_free_block = largest; + + if (copy_to_user((void __user *)arg, &p.vram_info, + sizeof(p.vram_info))) + r = -EFAULT; + break; + } + + case OMAPFB_SET_TEARSYNC: { + DBG("ioctl SET_TEARSYNC\n"); + + if (copy_from_user(&p.tearsync_info, (void __user *)arg, + sizeof(p.tearsync_info))) { + r = -EFAULT; + break; + } + + if (!display->enable_te) { + r = -ENODEV; + break; + } + + r = display->enable_te(display, !!p.tearsync_info.enabled); + + break; + } + + default: + dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd); + r = -EINVAL; + } + + if (r < 0) + DBG("ioctl failed: %d\n", r); + + return r; +} + + diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c new file mode 100644 index 0000000..ef29983 --- /dev/null +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -0,0 +1,2261 @@ +/* + * linux/drivers/video/omap2/omapfb-main.c + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/fb.h> +#include <linux/dma-mapping.h> +#include <linux/vmalloc.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/omapfb.h> + +#include <plat/display.h> +#include <plat/vram.h> +#include <plat/vrfb.h> + +#include "omapfb.h" + +#define MODULE_NAME "omapfb" + +#define OMAPFB_PLANE_XRES_MIN 8 +#define OMAPFB_PLANE_YRES_MIN 8 + +static char *def_mode; +static char *def_vram; +static int def_vrfb; +static int def_rotate; +static int def_mirror; + +#ifdef DEBUG +unsigned int omapfb_debug; +module_param_named(debug, omapfb_debug, bool, 0644); +static unsigned int omapfb_test_pattern; +module_param_named(test, omapfb_test_pattern, bool, 0644); +#endif + +static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi); + +#ifdef DEBUG +static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) +{ + struct fb_var_screeninfo *var = &fbi->var; + struct fb_fix_screeninfo *fix = &fbi->fix; + void __iomem *addr = fbi->screen_base; + const unsigned bytespp = var->bits_per_pixel >> 3; + const unsigned line_len = fix->line_length / bytespp; + + int r = (color >> 16) & 0xff; + int g = (color >> 8) & 0xff; + int b = (color >> 0) & 0xff; + + if (var->bits_per_pixel == 16) { + u16 __iomem *p = (u16 __iomem *)addr; + p += y * line_len + x; + + r = r * 32 / 256; + g = g * 64 / 256; + b = b * 32 / 256; + + __raw_writew((r << 11) | (g << 5) | (b << 0), p); + } else if (var->bits_per_pixel == 24) { + u8 __iomem *p = (u8 __iomem *)addr; + p += (y * line_len + x) * 3; + + __raw_writeb(b, p + 0); + __raw_writeb(g, p + 1); + __raw_writeb(r, p + 2); + } else if (var->bits_per_pixel == 32) { + u32 __iomem *p = (u32 __iomem *)addr; + p += y * line_len + x; + __raw_writel(color, p); + } +} + +static void fill_fb(struct fb_info *fbi) +{ + struct fb_var_screeninfo *var = &fbi->var; + const short w = var->xres_virtual; + const short h = var->yres_virtual; + void __iomem *addr = fbi->screen_base; + int y, x; + + if (!addr) + return; + + DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); + + for (y = 0; y < h; y++) { + for (x = 0; x < w; x++) { + if (x < 20 && y < 20) + draw_pixel(fbi, x, y, 0xffffff); + else if (x < 20 && (y > 20 && y < h - 20)) + draw_pixel(fbi, x, y, 0xff); + else if (y < 20 && (x > 20 && x < w - 20)) + draw_pixel(fbi, x, y, 0xff00); + else if (x > w - 20 && (y > 20 && y < h - 20)) + draw_pixel(fbi, x, y, 0xff0000); + else if (y > h - 20 && (x > 20 && x < w - 20)) + draw_pixel(fbi, x, y, 0xffff00); + else if (x == 20 || x == w - 20 || + y == 20 || y == h - 20) + draw_pixel(fbi, x, y, 0xffffff); + else if (x == y || w - x == h - y) + draw_pixel(fbi, x, y, 0xff00ff); + else if (w - x == y || x == h - y) + draw_pixel(fbi, x, y, 0x00ffff); + else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { + int t = x * 3 / w; + unsigned r = 0, g = 0, b = 0; + unsigned c; + if (var->bits_per_pixel == 16) { + if (t == 0) + b = (y % 32) * 256 / 32; + else if (t == 1) + g = (y % 64) * 256 / 64; + else if (t == 2) + r = (y % 32) * 256 / 32; + } else { + if (t == 0) + b = (y % 256); + else if (t == 1) + g = (y % 256); + else if (t == 2) + r = (y % 256); + } + c = (r << 16) | (g << 8) | (b << 0); + draw_pixel(fbi, x, y, c); + } else { + draw_pixel(fbi, x, y, 0); + } + } + } +} +#endif + +static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot) +{ + struct vrfb *vrfb = &ofbi->region.vrfb; + unsigned offset; + + switch (rot) { + case FB_ROTATE_UR: + offset = 0; + break; + case FB_ROTATE_CW: + offset = vrfb->yoffset; + break; + case FB_ROTATE_UD: + offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; + break; + case FB_ROTATE_CCW: + offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; + break; + default: + BUG(); + } + + offset *= vrfb->bytespp; + + return offset; +} + +static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot) +{ + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + return ofbi->region.vrfb.paddr[rot] + + omapfb_get_vrfb_offset(ofbi, rot); + } else { + return ofbi->region.paddr; + } +} + +static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi) +{ + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) + return ofbi->region.vrfb.paddr[0]; + else + return ofbi->region.paddr; +} + +static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi) +{ + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) + return ofbi->region.vrfb.vaddr[0]; + else + return ofbi->region.vaddr; +} + +static struct omapfb_colormode omapfb_colormodes[] = { + { + .dssmode = OMAP_DSS_COLOR_UYVY, + .bits_per_pixel = 16, + .nonstd = OMAPFB_COLOR_YUV422, + }, { + .dssmode = OMAP_DSS_COLOR_YUV2, + .bits_per_pixel = 16, + .nonstd = OMAPFB_COLOR_YUY422, + }, { + .dssmode = OMAP_DSS_COLOR_ARGB16, + .bits_per_pixel = 16, + .red = { .length = 4, .offset = 8, .msb_right = 0 }, + .green = { .length = 4, .offset = 4, .msb_right = 0 }, + .blue = { .length = 4, .offset = 0, .msb_right = 0 }, + .transp = { .length = 4, .offset = 12, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_RGB16, + .bits_per_pixel = 16, + .red = { .length = 5, .offset = 11, .msb_right = 0 }, + .green = { .length = 6, .offset = 5, .msb_right = 0 }, + .blue = { .length = 5, .offset = 0, .msb_right = 0 }, + .transp = { .length = 0, .offset = 0, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_RGB24P, + .bits_per_pixel = 24, + .red = { .length = 8, .offset = 16, .msb_right = 0 }, + .green = { .length = 8, .offset = 8, .msb_right = 0 }, + .blue = { .length = 8, .offset = 0, .msb_right = 0 }, + .transp = { .length = 0, .offset = 0, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_RGB24U, + .bits_per_pixel = 32, + .red = { .length = 8, .offset = 16, .msb_right = 0 }, + .green = { .length = 8, .offset = 8, .msb_right = 0 }, + .blue = { .length = 8, .offset = 0, .msb_right = 0 }, + .transp = { .length = 0, .offset = 0, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_ARGB32, + .bits_per_pixel = 32, + .red = { .length = 8, .offset = 16, .msb_right = 0 }, + .green = { .length = 8, .offset = 8, .msb_right = 0 }, + .blue = { .length = 8, .offset = 0, .msb_right = 0 }, + .transp = { .length = 8, .offset = 24, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_RGBA32, + .bits_per_pixel = 32, + .red = { .length = 8, .offset = 24, .msb_right = 0 }, + .green = { .length = 8, .offset = 16, .msb_right = 0 }, + .blue = { .length = 8, .offset = 8, .msb_right = 0 }, + .transp = { .length = 8, .offset = 0, .msb_right = 0 }, + }, { + .dssmode = OMAP_DSS_COLOR_RGBX32, + .bits_per_pixel = 32, + .red = { .length = 8, .offset = 24, .msb_right = 0 }, + .green = { .length = 8, .offset = 16, .msb_right = 0 }, + .blue = { .length = 8, .offset = 8, .msb_right = 0 }, + .transp = { .length = 0, .offset = 0, .msb_right = 0 }, + }, +}; + +static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, + struct omapfb_colormode *color) +{ + bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) + { + return f1->length == f2->length && + f1->offset == f2->offset && + f1->msb_right == f2->msb_right; + } + + if (var->bits_per_pixel == 0 || + var->red.length == 0 || + var->blue.length == 0 || + var->green.length == 0) + return 0; + + return var->bits_per_pixel == color->bits_per_pixel && + cmp_component(&var->red, &color->red) && + cmp_component(&var->green, &color->green) && + cmp_component(&var->blue, &color->blue) && + cmp_component(&var->transp, &color->transp); +} + +static void assign_colormode_to_var(struct fb_var_screeninfo *var, + struct omapfb_colormode *color) +{ + var->bits_per_pixel = color->bits_per_pixel; + var->nonstd = color->nonstd; + var->red = color->red; + var->green = color->green; + var->blue = color->blue; + var->transp = color->transp; +} + +static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var, + enum omap_color_mode *mode) +{ + enum omap_color_mode dssmode; + int i; + + /* first match with nonstd field */ + if (var->nonstd) { + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { + struct omapfb_colormode *m = &omapfb_colormodes[i]; + if (var->nonstd == m->nonstd) { + assign_colormode_to_var(var, m); + *mode = m->dssmode; + return 0; + } + } + + return -EINVAL; + } + + /* then try exact match of bpp and colors */ + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { + struct omapfb_colormode *m = &omapfb_colormodes[i]; + if (cmp_var_to_colormode(var, m)) { + assign_colormode_to_var(var, m); + *mode = m->dssmode; + return 0; + } + } + + /* match with bpp if user has not filled color fields + * properly */ + switch (var->bits_per_pixel) { + case 1: + dssmode = OMAP_DSS_COLOR_CLUT1; + break; + case 2: + dssmode = OMAP_DSS_COLOR_CLUT2; + break; + case 4: + dssmode = OMAP_DSS_COLOR_CLUT4; + break; + case 8: + dssmode = OMAP_DSS_COLOR_CLUT8; + break; + case 12: + dssmode = OMAP_DSS_COLOR_RGB12U; + break; + case 16: + dssmode = OMAP_DSS_COLOR_RGB16; + break; + case 24: + dssmode = OMAP_DSS_COLOR_RGB24P; + break; + case 32: + dssmode = OMAP_DSS_COLOR_RGB24U; + break; + default: + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { + struct omapfb_colormode *m = &omapfb_colormodes[i]; + if (dssmode == m->dssmode) { + assign_colormode_to_var(var, m); + *mode = m->dssmode; + return 0; + } + } + + return -EINVAL; +} + +static int check_fb_res_bounds(struct fb_var_screeninfo *var) +{ + int xres_min = OMAPFB_PLANE_XRES_MIN; + int xres_max = 2048; + int yres_min = OMAPFB_PLANE_YRES_MIN; + int yres_max = 2048; + + /* XXX: some applications seem to set virtual res to 0. */ + if (var->xres_virtual == 0) + var->xres_virtual = var->xres; + + if (var->yres_virtual == 0) + var->yres_virtual = var->yres; + + if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) + return -EINVAL; + + if (var->xres < xres_min) + var->xres = xres_min; + if (var->yres < yres_min) + var->yres = yres_min; + if (var->xres > xres_max) + var->xres = xres_max; + if (var->yres > yres_max) + var->yres = yres_max; + + if (var->xres > var->xres_virtual) + var->xres = var->xres_virtual; + if (var->yres > var->yres_virtual) + var->yres = var->yres_virtual; + + return 0; +} + +static void shrink_height(unsigned long max_frame_size, + struct fb_var_screeninfo *var) +{ + DBG("can't fit FB into memory, reducing y\n"); + var->yres_virtual = max_frame_size / + (var->xres_virtual * var->bits_per_pixel >> 3); + + if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN) + var->yres_virtual = OMAPFB_PLANE_YRES_MIN; + + if (var->yres > var->yres_virtual) + var->yres = var->yres_virtual; +} + +static void shrink_width(unsigned long max_frame_size, + struct fb_var_screeninfo *var) +{ + DBG("can't fit FB into memory, reducing x\n"); + var->xres_virtual = max_frame_size / var->yres_virtual / + (var->bits_per_pixel >> 3); + + if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN) + var->xres_virtual = OMAPFB_PLANE_XRES_MIN; + + if (var->xres > var->xres_virtual) + var->xres = var->xres_virtual; +} + +static int check_vrfb_fb_size(unsigned long region_size, + const struct fb_var_screeninfo *var) +{ + unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual, + var->yres_virtual, var->bits_per_pixel >> 3); + + return min_phys_size > region_size ? -EINVAL : 0; +} + +static int check_fb_size(const struct omapfb_info *ofbi, + struct fb_var_screeninfo *var) +{ + unsigned long max_frame_size = ofbi->region.size; + int bytespp = var->bits_per_pixel >> 3; + unsigned long line_size = var->xres_virtual * bytespp; + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + /* One needs to check for both VRFB and OMAPFB limitations. */ + if (check_vrfb_fb_size(max_frame_size, var)) + shrink_height(omap_vrfb_max_height( + max_frame_size, var->xres_virtual, bytespp) * + line_size, var); + + if (check_vrfb_fb_size(max_frame_size, var)) { + DBG("cannot fit FB to memory\n"); + return -EINVAL; + } + + return 0; + } + + DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); + + if (line_size * var->yres_virtual > max_frame_size) + shrink_height(max_frame_size, var); + + if (line_size * var->yres_virtual > max_frame_size) { + shrink_width(max_frame_size, var); + line_size = var->xres_virtual * bytespp; + } + + if (line_size * var->yres_virtual > max_frame_size) { + DBG("cannot fit FB to memory\n"); + return -EINVAL; + } + + return 0; +} + +/* + * Consider if VRFB assisted rotation is in use and if the virtual space for + * the zero degree view needs to be mapped. The need for mapping also acts as + * the trigger for setting up the hardware on the context in question. This + * ensures that one does not attempt to access the virtual view before the + * hardware is serving the address translations. + */ +static int setup_vrfb_rotation(struct fb_info *fbi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_mem_region *rg = &ofbi->region; + struct vrfb *vrfb = &rg->vrfb; + struct fb_var_screeninfo *var = &fbi->var; + struct fb_fix_screeninfo *fix = &fbi->fix; + unsigned bytespp; + bool yuv_mode; + enum omap_color_mode mode; + int r; + bool reconf; + + if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB) + return 0; + + DBG("setup_vrfb_rotation\n"); + + r = fb_mode_to_dss_mode(var, &mode); + if (r) + return r; + + bytespp = var->bits_per_pixel >> 3; + + yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY; + + /* We need to reconfigure VRFB if the resolution changes, if yuv mode + * is enabled/disabled, or if bytes per pixel changes */ + + /* XXX we shouldn't allow this when framebuffer is mmapped */ + + reconf = false; + + if (yuv_mode != vrfb->yuv_mode) + reconf = true; + else if (bytespp != vrfb->bytespp) + reconf = true; + else if (vrfb->xres != var->xres_virtual || + vrfb->yres != var->yres_virtual) + reconf = true; + + if (vrfb->vaddr[0] && reconf) { + fbi->screen_base = NULL; + fix->smem_start = 0; + fix->smem_len = 0; + iounmap(vrfb->vaddr[0]); + vrfb->vaddr[0] = NULL; + DBG("setup_vrfb_rotation: reset fb\n"); + } + + if (vrfb->vaddr[0]) + return 0; + + omap_vrfb_setup(&rg->vrfb, rg->paddr, + var->xres_virtual, + var->yres_virtual, + bytespp, yuv_mode); + + /* Now one can ioremap the 0 angle view */ + r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0); + if (r) + return r; + + /* used by open/write in fbmem.c */ + fbi->screen_base = ofbi->region.vrfb.vaddr[0]; + + fix->smem_start = ofbi->region.vrfb.paddr[0]; + + switch (var->nonstd) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUY422: + fix->line_length = + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; + break; + default: + fix->line_length = + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; + break; + } + + fix->smem_len = var->yres_virtual * fix->line_length; + + return 0; +} + +int dss_mode_to_fb_mode(enum omap_color_mode dssmode, + struct fb_var_screeninfo *var) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { + struct omapfb_colormode *mode = &omapfb_colormodes[i]; + if (dssmode == mode->dssmode) { + assign_colormode_to_var(var, mode); + return 0; + } + } + return -ENOENT; +} + +void set_fb_fix(struct fb_info *fbi) +{ + struct fb_fix_screeninfo *fix = &fbi->fix; + struct fb_var_screeninfo *var = &fbi->var; + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_mem_region *rg = &ofbi->region; + + DBG("set_fb_fix\n"); + + /* used by open/write in fbmem.c */ + fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); + + /* used by mmap in fbmem.c */ + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + switch (var->nonstd) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUY422: + fix->line_length = + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; + break; + default: + fix->line_length = + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; + break; + } + + fix->smem_len = var->yres_virtual * fix->line_length; + } else { + fix->line_length = + (var->xres_virtual * var->bits_per_pixel) >> 3; + fix->smem_len = rg->size; + } + + fix->smem_start = omapfb_get_region_paddr(ofbi); + + fix->type = FB_TYPE_PACKED_PIXELS; + + if (var->nonstd) + fix->visual = FB_VISUAL_PSEUDOCOLOR; + else { + switch (var->bits_per_pixel) { + case 32: + case 24: + case 16: + case 12: + fix->visual = FB_VISUAL_TRUECOLOR; + /* 12bpp is stored in 16 bits */ + break; + case 1: + case 2: + case 4: + case 8: + fix->visual = FB_VISUAL_PSEUDOCOLOR; + break; + } + } + + fix->accel = FB_ACCEL_NONE; + + fix->xpanstep = 1; + fix->ypanstep = 1; +} + +/* check new var and possibly modify it to be ok */ +int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omap_dss_device *display = fb2display(fbi); + enum omap_color_mode mode = 0; + int i; + int r; + + DBG("check_fb_var %d\n", ofbi->id); + + if (ofbi->region.size == 0) + return 0; + + r = fb_mode_to_dss_mode(var, &mode); + if (r) { + DBG("cannot convert var to omap dss mode\n"); + return r; + } + + for (i = 0; i < ofbi->num_overlays; ++i) { + if ((ofbi->overlays[i]->supported_modes & mode) == 0) { + DBG("invalid mode\n"); + return -EINVAL; + } + } + + if (var->rotate < 0 || var->rotate > 3) + return -EINVAL; + + if (check_fb_res_bounds(var)) + return -EINVAL; + + if (check_fb_size(ofbi, var)) + return -EINVAL; + + if (var->xres + var->xoffset > var->xres_virtual) + var->xoffset = var->xres_virtual - var->xres; + if (var->yres + var->yoffset > var->yres_virtual) + var->yoffset = var->yres_virtual - var->yres; + + DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", + var->xres, var->yres, + var->xres_virtual, var->yres_virtual); + + var->height = -1; + var->width = -1; + var->grayscale = 0; + + if (display && display->get_timings) { + struct omap_video_timings timings; + display->get_timings(display, &timings); + + /* pixclock in ps, the rest in pixclock */ + var->pixclock = timings.pixel_clock != 0 ? + KHZ2PICOS(timings.pixel_clock) : + 0; + var->left_margin = timings.hfp; + var->right_margin = timings.hbp; + var->upper_margin = timings.vfp; + var->lower_margin = timings.vbp; + var->hsync_len = timings.hsw; + var->vsync_len = timings.vsw; + } else { + var->pixclock = 0; + var->left_margin = 0; + var->right_margin = 0; + var->upper_margin = 0; + var->lower_margin = 0; + var->hsync_len = 0; + var->vsync_len = 0; + } + + /* TODO: get these from panel->config */ + var->vmode = FB_VMODE_NONINTERLACED; + var->sync = 0; + + return 0; +} + +/* + * --------------------------------------------------------------------------- + * fbdev framework callbacks + * --------------------------------------------------------------------------- + */ +static int omapfb_open(struct fb_info *fbi, int user) +{ + return 0; +} + +static int omapfb_release(struct fb_info *fbi, int user) +{ +#if 0 + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_dss_device *display = fb2display(fbi); + + DBG("Closing fb with plane index %d\n", ofbi->id); + + omapfb_lock(fbdev); + + if (display && display->get_update_mode && display->update) { + /* XXX this update should be removed, I think. But it's + * good for debugging */ + if (display->get_update_mode(display) == + OMAP_DSS_UPDATE_MANUAL) { + u16 w, h; + + if (display->sync) + display->sync(display); + + display->get_resolution(display, &w, &h); + display->update(display, 0, 0, w, h); + } + } + + if (display && display->sync) + display->sync(display); + + omapfb_unlock(fbdev); +#endif + return 0; +} + +static unsigned calc_rotation_offset_dma(struct fb_var_screeninfo *var, + struct fb_fix_screeninfo *fix, int rotation) +{ + unsigned offset; + + offset = var->yoffset * fix->line_length + + var->xoffset * (var->bits_per_pixel >> 3); + + return offset; +} + +static unsigned calc_rotation_offset_vrfb(struct fb_var_screeninfo *var, + struct fb_fix_screeninfo *fix, int rotation) +{ + unsigned offset; + + if (rotation == FB_ROTATE_UD) + offset = (var->yres_virtual - var->yres) * + fix->line_length; + else if (rotation == FB_ROTATE_CW) + offset = (var->yres_virtual - var->yres) * + (var->bits_per_pixel >> 3); + else + offset = 0; + + if (rotation == FB_ROTATE_UR) + offset += var->yoffset * fix->line_length + + var->xoffset * (var->bits_per_pixel >> 3); + else if (rotation == FB_ROTATE_UD) + offset -= var->yoffset * fix->line_length + + var->xoffset * (var->bits_per_pixel >> 3); + else if (rotation == FB_ROTATE_CW) + offset -= var->xoffset * fix->line_length + + var->yoffset * (var->bits_per_pixel >> 3); + else if (rotation == FB_ROTATE_CCW) + offset += var->xoffset * fix->line_length + + var->yoffset * (var->bits_per_pixel >> 3); + + return offset; +} + + +/* setup overlay according to the fb */ +static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, + u16 posx, u16 posy, u16 outw, u16 outh) +{ + int r = 0; + struct omapfb_info *ofbi = FB2OFB(fbi); + struct fb_var_screeninfo *var = &fbi->var; + struct fb_fix_screeninfo *fix = &fbi->fix; + enum omap_color_mode mode = 0; + int offset; + u32 data_start_p; + void __iomem *data_start_v; + struct omap_overlay_info info; + int xres, yres; + int screen_width; + int mirror; + int rotation = var->rotate; + int i; + + for (i = 0; i < ofbi->num_overlays; i++) { + if (ovl != ofbi->overlays[i]) + continue; + + rotation = (rotation + ofbi->rotation[i]) % 4; + break; + } + + DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, + posx, posy, outw, outh); + + if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { + xres = var->yres; + yres = var->xres; + } else { + xres = var->xres; + yres = var->yres; + } + + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); + data_start_v = NULL; + } else { + data_start_p = omapfb_get_region_paddr(ofbi); + data_start_v = omapfb_get_region_vaddr(ofbi); + } + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) + offset = calc_rotation_offset_vrfb(var, fix, rotation); + else + offset = calc_rotation_offset_dma(var, fix, rotation); + + data_start_p += offset; + data_start_v += offset; + + if (offset) + DBG("offset %d, %d = %d\n", + var->xoffset, var->yoffset, offset); + + DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); + + r = fb_mode_to_dss_mode(var, &mode); + if (r) { + DBG("fb_mode_to_dss_mode failed"); + goto err; + } + + switch (var->nonstd) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUY422: + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + screen_width = fix->line_length + / (var->bits_per_pixel >> 2); + break; + } + default: + screen_width = fix->line_length / (var->bits_per_pixel >> 3); + break; + } + + ovl->get_overlay_info(ovl, &info); + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) + mirror = 0; + else + mirror = ofbi->mirror; + + info.paddr = data_start_p; + info.vaddr = data_start_v; + info.screen_width = screen_width; + info.width = xres; + info.height = yres; + info.color_mode = mode; + info.rotation_type = ofbi->rotation_type; + info.rotation = rotation; + info.mirror = mirror; + + info.pos_x = posx; + info.pos_y = posy; + info.out_width = outw; + info.out_height = outh; + + r = ovl->set_overlay_info(ovl, &info); + if (r) { + DBG("ovl->setup_overlay_info failed\n"); + goto err; + } + + return 0; + +err: + DBG("setup_overlay failed\n"); + return r; +} + +/* apply var to the overlay */ +int omapfb_apply_changes(struct fb_info *fbi, int init) +{ + int r = 0; + struct omapfb_info *ofbi = FB2OFB(fbi); + struct fb_var_screeninfo *var = &fbi->var; + struct omap_overlay *ovl; + u16 posx, posy; + u16 outw, outh; + int i; + +#ifdef DEBUG + if (omapfb_test_pattern) + fill_fb(fbi); +#endif + + for (i = 0; i < ofbi->num_overlays; i++) { + ovl = ofbi->overlays[i]; + + DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); + + if (ofbi->region.size == 0) { + /* the fb is not available. disable the overlay */ + omapfb_overlay_enable(ovl, 0); + if (!init && ovl->manager) + ovl->manager->apply(ovl->manager); + continue; + } + + if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { + int rotation = (var->rotate + ofbi->rotation[i]) % 4; + if (rotation == FB_ROTATE_CW || + rotation == FB_ROTATE_CCW) { + outw = var->yres; + outh = var->xres; + } else { + outw = var->xres; + outh = var->yres; + } + } else { + outw = ovl->info.out_width; + outh = ovl->info.out_height; + } + + if (init) { + posx = 0; + posy = 0; + } else { + posx = ovl->info.pos_x; + posy = ovl->info.pos_y; + } + + r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); + if (r) + goto err; + + if (!init && ovl->manager) + ovl->manager->apply(ovl->manager); + } + return 0; +err: + DBG("apply_changes failed\n"); + return r; +} + +/* checks var and eventually tweaks it to something supported, + * DO NOT MODIFY PAR */ +static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) +{ + int r; + + DBG("check_var(%d)\n", FB2OFB(fbi)->id); + + r = check_fb_var(fbi, var); + + return r; +} + +/* set the video mode according to info->var */ +static int omapfb_set_par(struct fb_info *fbi) +{ + int r; + + DBG("set_par(%d)\n", FB2OFB(fbi)->id); + + set_fb_fix(fbi); + + r = setup_vrfb_rotation(fbi); + if (r) + return r; + + r = omapfb_apply_changes(fbi, 0); + + return r; +} + +static int omapfb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *fbi) +{ + struct fb_var_screeninfo new_var; + int r; + + DBG("pan_display(%d)\n", FB2OFB(fbi)->id); + + if (var->xoffset == fbi->var.xoffset && + var->yoffset == fbi->var.yoffset) + return 0; + + new_var = fbi->var; + new_var.xoffset = var->xoffset; + new_var.yoffset = var->yoffset; + + fbi->var = new_var; + + r = omapfb_apply_changes(fbi, 0); + + return r; +} + +static void mmap_user_open(struct vm_area_struct *vma) +{ + struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; + + atomic_inc(&ofbi->map_count); +} + +static void mmap_user_close(struct vm_area_struct *vma) +{ + struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; + + atomic_dec(&ofbi->map_count); +} + +static struct vm_operations_struct mmap_user_ops = { + .open = mmap_user_open, + .close = mmap_user_close, +}; + +static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct fb_fix_screeninfo *fix = &fbi->fix; + unsigned long off; + unsigned long start; + u32 len; + + if (vma->vm_end - vma->vm_start == 0) + return 0; + if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) + return -EINVAL; + off = vma->vm_pgoff << PAGE_SHIFT; + + start = omapfb_get_region_paddr(ofbi); + len = fix->smem_len; + if (off >= len) + return -EINVAL; + if ((vma->vm_end - vma->vm_start + off) > len) + return -EINVAL; + + off += start; + + DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); + + vma->vm_pgoff = off >> PAGE_SHIFT; + vma->vm_flags |= VM_IO | VM_RESERVED; + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + vma->vm_ops = &mmap_user_ops; + vma->vm_private_data = ofbi; + if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, vma->vm_page_prot)) + return -EAGAIN; + /* vm_ops.open won't be called for mmap itself. */ + atomic_inc(&ofbi->map_count); + return 0; +} + +/* Store a single color palette entry into a pseudo palette or the hardware + * palette if one is available. For now we support only 16bpp and thus store + * the entry only to the pseudo palette. + */ +static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, + u_int blue, u_int transp, int update_hw_pal) +{ + /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ + /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ + struct fb_var_screeninfo *var = &fbi->var; + int r = 0; + + enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ + + /*switch (plane->color_mode) {*/ + switch (mode) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUV420: + case OMAPFB_COLOR_YUY422: + r = -EINVAL; + break; + case OMAPFB_COLOR_CLUT_8BPP: + case OMAPFB_COLOR_CLUT_4BPP: + case OMAPFB_COLOR_CLUT_2BPP: + case OMAPFB_COLOR_CLUT_1BPP: + /* + if (fbdev->ctrl->setcolreg) + r = fbdev->ctrl->setcolreg(regno, red, green, blue, + transp, update_hw_pal); + */ + /* Fallthrough */ + r = -EINVAL; + break; + case OMAPFB_COLOR_RGB565: + case OMAPFB_COLOR_RGB444: + case OMAPFB_COLOR_RGB24P: + case OMAPFB_COLOR_RGB24U: + if (r != 0) + break; + + if (regno < 0) { + r = -EINVAL; + break; + } + + if (regno < 16) { + u16 pal; + pal = ((red >> (16 - var->red.length)) << + var->red.offset) | + ((green >> (16 - var->green.length)) << + var->green.offset) | + (blue >> (16 - var->blue.length)); + ((u32 *)(fbi->pseudo_palette))[regno] = pal; + } + break; + default: + BUG(); + } + return r; +} + +static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info) +{ + DBG("setcolreg\n"); + + return _setcolreg(info, regno, red, green, blue, transp, 1); +} + +static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) +{ + int count, index, r; + u16 *red, *green, *blue, *transp; + u16 trans = 0xffff; + + DBG("setcmap\n"); + + red = cmap->red; + green = cmap->green; + blue = cmap->blue; + transp = cmap->transp; + index = cmap->start; + + for (count = 0; count < cmap->len; count++) { + if (transp) + trans = *transp++; + r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, + count == cmap->len - 1); + if (r != 0) + return r; + } + + return 0; +} + +static int omapfb_blank(int blank, struct fb_info *fbi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_dss_device *display = fb2display(fbi); + int do_update = 0; + int r = 0; + + omapfb_lock(fbdev); + + switch (blank) { + case FB_BLANK_UNBLANK: + if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) + goto exit; + + if (display->resume) + r = display->resume(display); + + if (r == 0 && display->get_update_mode && + display->get_update_mode(display) == + OMAP_DSS_UPDATE_MANUAL) + do_update = 1; + + break; + + case FB_BLANK_NORMAL: + /* FB_BLANK_NORMAL could be implemented. + * Needs DSS additions. */ + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + if (display->state != OMAP_DSS_DISPLAY_ACTIVE) + goto exit; + + if (display->suspend) + r = display->suspend(display); + + break; + + default: + r = -EINVAL; + } + +exit: + omapfb_unlock(fbdev); + + if (r == 0 && do_update && display->update) { + u16 w, h; + display->get_resolution(display, &w, &h); + + r = display->update(display, 0, 0, w, h); + } + + return r; +} + +#if 0 +/* XXX fb_read and fb_write are needed for VRFB */ +ssize_t omapfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); + /* XXX needed for VRFB */ + return count; +} +#endif + +static struct fb_ops omapfb_ops = { + .owner = THIS_MODULE, + .fb_open = omapfb_open, + .fb_release = omapfb_release, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_blank = omapfb_blank, + .fb_ioctl = omapfb_ioctl, + .fb_check_var = omapfb_check_var, + .fb_set_par = omapfb_set_par, + .fb_pan_display = omapfb_pan_display, + .fb_mmap = omapfb_mmap, + .fb_setcolreg = omapfb_setcolreg, + .fb_setcmap = omapfb_setcmap, + /*.fb_write = omapfb_write,*/ +}; + +static void omapfb_free_fbmem(struct fb_info *fbi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omapfb2_mem_region *rg; + + rg = &ofbi->region; + + if (rg->paddr) + if (omap_vram_free(rg->paddr, rg->size)) + dev_err(fbdev->dev, "VRAM FREE failed\n"); + + if (rg->vaddr) + iounmap(rg->vaddr); + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + /* unmap the 0 angle rotation */ + if (rg->vrfb.vaddr[0]) { + iounmap(rg->vrfb.vaddr[0]); + omap_vrfb_release_ctx(&rg->vrfb); + } + } + + rg->vaddr = NULL; + rg->paddr = 0; + rg->alloc = 0; + rg->size = 0; +} + +static void clear_fb_info(struct fb_info *fbi) +{ + memset(&fbi->var, 0, sizeof(fbi->var)); + memset(&fbi->fix, 0, sizeof(fbi->fix)); + strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); +} + +static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) +{ + int i; + + DBG("free all fbmem\n"); + + for (i = 0; i < fbdev->num_fbs; i++) { + struct fb_info *fbi = fbdev->fbs[i]; + omapfb_free_fbmem(fbi); + clear_fb_info(fbi); + } + + return 0; +} + +static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, + unsigned long paddr) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omapfb2_mem_region *rg; + void __iomem *vaddr; + int r; + + rg = &ofbi->region; + memset(rg, 0, sizeof(*rg)); + + size = PAGE_ALIGN(size); + + if (!paddr) { + DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); + r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); + } else { + DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, + ofbi->id); + r = omap_vram_reserve(paddr, size); + } + + if (r) { + dev_err(fbdev->dev, "failed to allocate framebuffer\n"); + return -ENOMEM; + } + + if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { + vaddr = ioremap_wc(paddr, size); + + if (!vaddr) { + dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); + omap_vram_free(paddr, size); + return -ENOMEM; + } + + DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); + } else { + r = omap_vrfb_request_ctx(&rg->vrfb); + if (r) { + dev_err(fbdev->dev, "vrfb create ctx failed\n"); + return r; + } + + vaddr = NULL; + } + + rg->paddr = paddr; + rg->vaddr = vaddr; + rg->size = size; + rg->alloc = 1; + + return 0; +} + +/* allocate fbmem using display resolution as reference */ +static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, + unsigned long paddr) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omap_dss_device *display; + int bytespp; + + display = fb2display(fbi); + + if (!display) + return 0; + + switch (display->get_recommended_bpp(display)) { + case 16: + bytespp = 2; + break; + case 24: + bytespp = 4; + break; + default: + bytespp = 4; + break; + } + + if (!size) { + u16 w, h; + + display->get_resolution(display, &w, &h); + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + size = max(omap_vrfb_min_phys_size(w, h, bytespp), + omap_vrfb_min_phys_size(h, w, bytespp)); + + DBG("adjusting fb mem size for VRFB, %u -> %lu\n", + w * h * bytespp, size); + } else { + size = w * h * bytespp; + } + } + + if (!size) + return 0; + + return omapfb_alloc_fbmem(fbi, size, paddr); +} + +static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) +{ + enum omap_color_mode mode; + + switch (fmt) { + case OMAPFB_COLOR_RGB565: + mode = OMAP_DSS_COLOR_RGB16; + break; + case OMAPFB_COLOR_YUV422: + mode = OMAP_DSS_COLOR_YUV2; + break; + case OMAPFB_COLOR_CLUT_8BPP: + mode = OMAP_DSS_COLOR_CLUT8; + break; + case OMAPFB_COLOR_CLUT_4BPP: + mode = OMAP_DSS_COLOR_CLUT4; + break; + case OMAPFB_COLOR_CLUT_2BPP: + mode = OMAP_DSS_COLOR_CLUT2; + break; + case OMAPFB_COLOR_CLUT_1BPP: + mode = OMAP_DSS_COLOR_CLUT1; + break; + case OMAPFB_COLOR_RGB444: + mode = OMAP_DSS_COLOR_RGB12U; + break; + case OMAPFB_COLOR_YUY422: + mode = OMAP_DSS_COLOR_UYVY; + break; + case OMAPFB_COLOR_ARGB16: + mode = OMAP_DSS_COLOR_ARGB16; + break; + case OMAPFB_COLOR_RGB24U: + mode = OMAP_DSS_COLOR_RGB24U; + break; + case OMAPFB_COLOR_RGB24P: + mode = OMAP_DSS_COLOR_RGB24P; + break; + case OMAPFB_COLOR_ARGB32: + mode = OMAP_DSS_COLOR_ARGB32; + break; + case OMAPFB_COLOR_RGBA32: + mode = OMAP_DSS_COLOR_RGBA32; + break; + case OMAPFB_COLOR_RGBX32: + mode = OMAP_DSS_COLOR_RGBX32; + break; + default: + mode = -EINVAL; + } + + return mode; +} + +static int omapfb_parse_vram_param(const char *param, int max_entries, + unsigned long *sizes, unsigned long *paddrs) +{ + int fbnum; + unsigned long size; + unsigned long paddr = 0; + char *p, *start; + + start = (char *)param; + + while (1) { + p = start; + + fbnum = simple_strtoul(p, &p, 10); + + if (p == param) + return -EINVAL; + + if (*p != ':') + return -EINVAL; + + if (fbnum >= max_entries) + return -EINVAL; + + size = memparse(p + 1, &p); + + if (!size) + return -EINVAL; + + paddr = 0; + + if (*p == '@') { + paddr = simple_strtoul(p + 1, &p, 16); + + if (!paddr) + return -EINVAL; + + } + + paddrs[fbnum] = paddr; + sizes[fbnum] = size; + + if (*p == 0) + break; + + if (*p != ',') + return -EINVAL; + + ++p; + + start = p; + } + + return 0; +} + +static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) +{ + int i, r; + unsigned long vram_sizes[10]; + unsigned long vram_paddrs[10]; + + memset(&vram_sizes, 0, sizeof(vram_sizes)); + memset(&vram_paddrs, 0, sizeof(vram_paddrs)); + + if (def_vram && omapfb_parse_vram_param(def_vram, 10, + vram_sizes, vram_paddrs)) { + dev_err(fbdev->dev, "failed to parse vram parameter\n"); + + memset(&vram_sizes, 0, sizeof(vram_sizes)); + memset(&vram_paddrs, 0, sizeof(vram_paddrs)); + } + + if (fbdev->dev->platform_data) { + struct omapfb_platform_data *opd; + opd = fbdev->dev->platform_data; + for (i = 0; i < opd->mem_desc.region_cnt; ++i) { + if (!vram_sizes[i]) { + unsigned long size; + unsigned long paddr; + + size = opd->mem_desc.region[i].size; + paddr = opd->mem_desc.region[i].paddr; + + vram_sizes[i] = size; + vram_paddrs[i] = paddr; + } + } + } + + for (i = 0; i < fbdev->num_fbs; i++) { + /* allocate memory automatically only for fb0, or if + * excplicitly defined with vram or plat data option */ + if (i == 0 || vram_sizes[i] != 0) { + r = omapfb_alloc_fbmem_display(fbdev->fbs[i], + vram_sizes[i], vram_paddrs[i]); + + if (r) + return r; + } + } + + for (i = 0; i < fbdev->num_fbs; i++) { + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); + struct omapfb2_mem_region *rg; + rg = &ofbi->region; + + DBG("region%d phys %08x virt %p size=%lu\n", + i, + rg->paddr, + rg->vaddr, + rg->size); + } + + return 0; +} + +int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_dss_device *display = fb2display(fbi); + struct omapfb2_mem_region *rg = &ofbi->region; + unsigned long old_size = rg->size; + unsigned long old_paddr = rg->paddr; + int old_type = rg->type; + int r; + + if (type > OMAPFB_MEMTYPE_MAX) + return -EINVAL; + + size = PAGE_ALIGN(size); + + if (old_size == size && old_type == type) + return 0; + + if (display && display->sync) + display->sync(display); + + omapfb_free_fbmem(fbi); + + if (size == 0) { + clear_fb_info(fbi); + return 0; + } + + r = omapfb_alloc_fbmem(fbi, size, 0); + + if (r) { + if (old_size) + omapfb_alloc_fbmem(fbi, old_size, old_paddr); + + if (rg->size == 0) + clear_fb_info(fbi); + + return r; + } + + if (old_size == size) + return 0; + + if (old_size == 0) { + DBG("initializing fb %d\n", ofbi->id); + r = omapfb_fb_init(fbdev, fbi); + if (r) { + DBG("omapfb_fb_init failed\n"); + goto err; + } + r = omapfb_apply_changes(fbi, 1); + if (r) { + DBG("omapfb_apply_changes failed\n"); + goto err; + } + } else { + struct fb_var_screeninfo new_var; + memcpy(&new_var, &fbi->var, sizeof(new_var)); + r = check_fb_var(fbi, &new_var); + if (r) + goto err; + memcpy(&fbi->var, &new_var, sizeof(fbi->var)); + set_fb_fix(fbi); + r = setup_vrfb_rotation(fbi); + if (r) + goto err; + } + + return 0; +err: + omapfb_free_fbmem(fbi); + clear_fb_info(fbi); + return r; +} + +/* initialize fb_info, var, fix to something sane based on the display */ +static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) +{ + struct fb_var_screeninfo *var = &fbi->var; + struct omap_dss_device *display = fb2display(fbi); + struct omapfb_info *ofbi = FB2OFB(fbi); + int r = 0; + + fbi->fbops = &omapfb_ops; + fbi->flags = FBINFO_FLAG_DEFAULT; + fbi->pseudo_palette = fbdev->pseudo_palette; + + if (ofbi->region.size == 0) { + clear_fb_info(fbi); + return 0; + } + + var->nonstd = 0; + var->bits_per_pixel = 0; + + var->rotate = def_rotate; + + /* + * Check if there is a default color format set in the board file, + * and use this format instead the default deducted from the + * display bpp. + */ + if (fbdev->dev->platform_data) { + struct omapfb_platform_data *opd; + int id = ofbi->id; + + opd = fbdev->dev->platform_data; + if (opd->mem_desc.region[id].format_used) { + enum omap_color_mode mode; + enum omapfb_color_format format; + + format = opd->mem_desc.region[id].format; + mode = fb_format_to_dss_mode(format); + if (mode < 0) { + r = mode; + goto err; + } + r = dss_mode_to_fb_mode(mode, var); + if (r < 0) + goto err; + } + } + + if (display) { + u16 w, h; + int rotation = (var->rotate + ofbi->rotation[0]) % 4; + + display->get_resolution(display, &w, &h); + + if (rotation == FB_ROTATE_CW || + rotation == FB_ROTATE_CCW) { + var->xres = h; + var->yres = w; + } else { + var->xres = w; + var->yres = h; + } + + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + + if (!var->bits_per_pixel) { + switch (display->get_recommended_bpp(display)) { + case 16: + var->bits_per_pixel = 16; + break; + case 24: + var->bits_per_pixel = 32; + break; + default: + dev_err(fbdev->dev, "illegal display " + "bpp\n"); + return -EINVAL; + } + } + } else { + /* if there's no display, let's just guess some basic values */ + var->xres = 320; + var->yres = 240; + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + if (!var->bits_per_pixel) + var->bits_per_pixel = 16; + } + + r = check_fb_var(fbi, var); + if (r) + goto err; + + set_fb_fix(fbi); + r = setup_vrfb_rotation(fbi); + if (r) + goto err; + + r = fb_alloc_cmap(&fbi->cmap, 256, 0); + if (r) + dev_err(fbdev->dev, "unable to allocate color map memory\n"); + +err: + return r; +} + +static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) +{ + fb_dealloc_cmap(&fbi->cmap); +} + + +static void omapfb_free_resources(struct omapfb2_device *fbdev) +{ + int i; + + DBG("free_resources\n"); + + if (fbdev == NULL) + return; + + for (i = 0; i < fbdev->num_fbs; i++) + unregister_framebuffer(fbdev->fbs[i]); + + /* free the reserved fbmem */ + omapfb_free_all_fbmem(fbdev); + + for (i = 0; i < fbdev->num_fbs; i++) { + fbinfo_cleanup(fbdev, fbdev->fbs[i]); + framebuffer_release(fbdev->fbs[i]); + } + + for (i = 0; i < fbdev->num_displays; i++) { + if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) + fbdev->displays[i]->disable(fbdev->displays[i]); + + omap_dss_put_device(fbdev->displays[i]); + } + + dev_set_drvdata(fbdev->dev, NULL); + kfree(fbdev); +} + +static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) +{ + int r, i; + + fbdev->num_fbs = 0; + + DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); + + /* allocate fb_infos */ + for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { + struct fb_info *fbi; + struct omapfb_info *ofbi; + + fbi = framebuffer_alloc(sizeof(struct omapfb_info), + fbdev->dev); + + if (fbi == NULL) { + dev_err(fbdev->dev, + "unable to allocate memory for plane info\n"); + return -ENOMEM; + } + + clear_fb_info(fbi); + + fbdev->fbs[i] = fbi; + + ofbi = FB2OFB(fbi); + ofbi->fbdev = fbdev; + ofbi->id = i; + + /* assign these early, so that fb alloc can use them */ + ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : + OMAP_DSS_ROT_DMA; + ofbi->mirror = def_mirror; + + fbdev->num_fbs++; + } + + DBG("fb_infos allocated\n"); + + /* assign overlays for the fbs */ + for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); + + ofbi->overlays[0] = fbdev->overlays[i]; + ofbi->num_overlays = 1; + } + + /* allocate fb memories */ + r = omapfb_allocate_all_fbs(fbdev); + if (r) { + dev_err(fbdev->dev, "failed to allocate fbmem\n"); + return r; + } + + DBG("fbmems allocated\n"); + + /* setup fb_infos */ + for (i = 0; i < fbdev->num_fbs; i++) { + r = omapfb_fb_init(fbdev, fbdev->fbs[i]); + if (r) { + dev_err(fbdev->dev, "failed to setup fb_info\n"); + return r; + } + } + + DBG("fb_infos initialized\n"); + + for (i = 0; i < fbdev->num_fbs; i++) { + r = register_framebuffer(fbdev->fbs[i]); + if (r != 0) { + dev_err(fbdev->dev, + "registering framebuffer %d failed\n", i); + return r; + } + } + + DBG("framebuffers registered\n"); + + for (i = 0; i < fbdev->num_fbs; i++) { + r = omapfb_apply_changes(fbdev->fbs[i], 1); + if (r) { + dev_err(fbdev->dev, "failed to change mode\n"); + return r; + } + } + + DBG("create sysfs for fbs\n"); + r = omapfb_create_sysfs(fbdev); + if (r) { + dev_err(fbdev->dev, "failed to create sysfs entries\n"); + return r; + } + + /* Enable fb0 */ + if (fbdev->num_fbs > 0) { + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); + + if (ofbi->num_overlays > 0) { + struct omap_overlay *ovl = ofbi->overlays[0]; + + r = omapfb_overlay_enable(ovl, 1); + + if (r) { + dev_err(fbdev->dev, + "failed to enable overlay\n"); + return r; + } + } + } + + DBG("create_framebuffers done\n"); + + return 0; +} + +static int omapfb_mode_to_timings(const char *mode_str, + struct omap_video_timings *timings, u8 *bpp) +{ + struct fb_info fbi; + struct fb_var_screeninfo var; + struct fb_ops fbops; + int r; + +#ifdef CONFIG_OMAP2_DSS_VENC + if (strcmp(mode_str, "pal") == 0) { + *timings = omap_dss_pal_timings; + *bpp = 0; + return 0; + } else if (strcmp(mode_str, "ntsc") == 0) { + *timings = omap_dss_ntsc_timings; + *bpp = 0; + return 0; + } +#endif + + /* this is quite a hack, but I wanted to use the modedb and for + * that we need fb_info and var, so we create dummy ones */ + + memset(&fbi, 0, sizeof(fbi)); + memset(&var, 0, sizeof(var)); + memset(&fbops, 0, sizeof(fbops)); + fbi.fbops = &fbops; + + r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); + + if (r != 0) { + timings->pixel_clock = PICOS2KHZ(var.pixclock); + timings->hfp = var.left_margin; + timings->hbp = var.right_margin; + timings->vfp = var.upper_margin; + timings->vbp = var.lower_margin; + timings->hsw = var.hsync_len; + timings->vsw = var.vsync_len; + timings->x_res = var.xres; + timings->y_res = var.yres; + + switch (var.bits_per_pixel) { + case 16: + *bpp = 16; + break; + case 24: + case 32: + default: + *bpp = 24; + break; + } + + return 0; + } else { + return -EINVAL; + } +} + +static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str) +{ + int r; + u8 bpp; + struct omap_video_timings timings; + + r = omapfb_mode_to_timings(mode_str, &timings, &bpp); + if (r) + return r; + + display->panel.recommended_bpp = bpp; + + if (!display->check_timings || !display->set_timings) + return -EINVAL; + + r = display->check_timings(display, &timings); + if (r) + return r; + + display->set_timings(display, &timings); + + return 0; +} + +static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) +{ + char *str, *options, *this_opt; + int r = 0; + + str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL); + strcpy(str, def_mode); + options = str; + + while (!r && (this_opt = strsep(&options, ",")) != NULL) { + char *p, *display_str, *mode_str; + struct omap_dss_device *display; + int i; + + p = strchr(this_opt, ':'); + if (!p) { + r = -EINVAL; + break; + } + + *p = 0; + display_str = this_opt; + mode_str = p + 1; + + display = NULL; + for (i = 0; i < fbdev->num_displays; ++i) { + if (strcmp(fbdev->displays[i]->name, + display_str) == 0) { + display = fbdev->displays[i]; + break; + } + } + + if (!display) { + r = -EINVAL; + break; + } + + r = omapfb_set_def_mode(display, mode_str); + if (r) + break; + } + + kfree(str); + + return r; +} + +static int omapfb_probe(struct platform_device *pdev) +{ + struct omapfb2_device *fbdev = NULL; + int r = 0; + int i; + struct omap_overlay *ovl; + struct omap_dss_device *def_display; + struct omap_dss_device *dssdev; + + DBG("omapfb_probe\n"); + + if (pdev->num_resources != 0) { + dev_err(&pdev->dev, "probed for an unknown device\n"); + r = -ENODEV; + goto err0; + } + + fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); + if (fbdev == NULL) { + r = -ENOMEM; + goto err0; + } + + mutex_init(&fbdev->mtx); + + fbdev->dev = &pdev->dev; + platform_set_drvdata(pdev, fbdev); + + fbdev->num_displays = 0; + dssdev = NULL; + for_each_dss_dev(dssdev) { + omap_dss_get_device(dssdev); + fbdev->displays[fbdev->num_displays++] = dssdev; + } + + if (fbdev->num_displays == 0) { + dev_err(&pdev->dev, "no displays\n"); + r = -EINVAL; + goto cleanup; + } + + fbdev->num_overlays = omap_dss_get_num_overlays(); + for (i = 0; i < fbdev->num_overlays; i++) + fbdev->overlays[i] = omap_dss_get_overlay(i); + + fbdev->num_managers = omap_dss_get_num_overlay_managers(); + for (i = 0; i < fbdev->num_managers; i++) + fbdev->managers[i] = omap_dss_get_overlay_manager(i); + + if (def_mode && strlen(def_mode) > 0) { + if (omapfb_parse_def_modes(fbdev)) + dev_warn(&pdev->dev, "cannot parse default modes\n"); + } + + r = omapfb_create_framebuffers(fbdev); + if (r) + goto cleanup; + + for (i = 0; i < fbdev->num_managers; i++) { + struct omap_overlay_manager *mgr; + mgr = fbdev->managers[i]; + r = mgr->apply(mgr); + if (r) + dev_warn(fbdev->dev, "failed to apply dispc config\n"); + } + + DBG("mgr->apply'ed\n"); + + /* gfx overlay should be the default one. find a display + * connected to that, and use it as default display */ + ovl = omap_dss_get_overlay(0); + if (ovl->manager && ovl->manager->device) { + def_display = ovl->manager->device; + } else { + dev_warn(&pdev->dev, "cannot find default display\n"); + def_display = NULL; + } + + if (def_display) { +#ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE + u16 w, h; +#endif + r = def_display->enable(def_display); + if (r) + dev_warn(fbdev->dev, "Failed to enable display '%s'\n", + def_display->name); + + /* set the update mode */ + if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { +#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE + if (def_display->enable_te) + def_display->enable_te(def_display, 1); + if (def_display->set_update_mode) + def_display->set_update_mode(def_display, + OMAP_DSS_UPDATE_AUTO); +#else /* MANUAL_UPDATE */ + if (def_display->enable_te) + def_display->enable_te(def_display, 0); + if (def_display->set_update_mode) + def_display->set_update_mode(def_display, + OMAP_DSS_UPDATE_MANUAL); + + def_display->get_resolution(def_display, &w, &h); + def_display->update(def_display, 0, 0, w, h); +#endif + } else { + if (def_display->set_update_mode) + def_display->set_update_mode(def_display, + OMAP_DSS_UPDATE_AUTO); + } + } + + return 0; + +cleanup: + omapfb_free_resources(fbdev); +err0: + dev_err(&pdev->dev, "failed to setup omapfb\n"); + return r; +} + +static int omapfb_remove(struct platform_device *pdev) +{ + struct omapfb2_device *fbdev = platform_get_drvdata(pdev); + + /* FIXME: wait till completion of pending events */ + + omapfb_remove_sysfs(fbdev); + + omapfb_free_resources(fbdev); + + return 0; +} + +static struct platform_driver omapfb_driver = { + .probe = omapfb_probe, + .remove = omapfb_remove, + .driver = { + .name = "omapfb", + .owner = THIS_MODULE, + }, +}; + +static int __init omapfb_init(void) +{ + DBG("omapfb_init\n"); + + if (platform_driver_register(&omapfb_driver)) { + printk(KERN_ERR "failed to register omapfb driver\n"); + return -ENODEV; + } + + return 0; +} + +static void __exit omapfb_exit(void) +{ + DBG("omapfb_exit\n"); + platform_driver_unregister(&omapfb_driver); +} + +module_param_named(mode, def_mode, charp, 0); +module_param_named(vram, def_vram, charp, 0); +module_param_named(rotate, def_rotate, int, 0); +module_param_named(vrfb, def_vrfb, bool, 0); +module_param_named(mirror, def_mirror, bool, 0); + +/* late_initcall to let panel/ctrl drivers loaded first. + * I guess better option would be a more dynamic approach, + * so that omapfb reacts to new panels when they are loaded */ +late_initcall(omapfb_init); +/*module_init(omapfb_init);*/ +module_exit(omapfb_exit); + +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); +MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c new file mode 100644 index 0000000..62bb88f --- /dev/null +++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c @@ -0,0 +1,507 @@ +/* + * linux/drivers/video/omap2/omapfb-sysfs.c + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/fb.h> +#include <linux/sysfs.h> +#include <linux/device.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/omapfb.h> + +#include <plat/display.h> +#include <plat/vrfb.h> + +#include "omapfb.h" + +static ssize_t show_rotate_type(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + + return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type); +} + +static ssize_t store_rotate_type(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + enum omap_dss_rotation_type rot_type; + int r; + + rot_type = simple_strtoul(buf, NULL, 0); + + if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB) + return -EINVAL; + + lock_fb_info(fbi); + + r = 0; + if (rot_type == ofbi->rotation_type) + goto out; + + if (ofbi->region.size) { + r = -EBUSY; + goto out; + } + + ofbi->rotation_type = rot_type; + + /* + * Since the VRAM for this FB is not allocated at the moment we don't + * need to do any further parameter checking at this point. + */ +out: + unlock_fb_info(fbi); + + return r ? r : count; +} + + +static ssize_t show_mirror(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + + return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror); +} + +static ssize_t store_mirror(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + bool mirror; + int r; + struct fb_var_screeninfo new_var; + + mirror = simple_strtoul(buf, NULL, 0); + + if (mirror != 0 && mirror != 1) + return -EINVAL; + + lock_fb_info(fbi); + + ofbi->mirror = mirror; + + memcpy(&new_var, &fbi->var, sizeof(new_var)); + r = check_fb_var(fbi, &new_var); + if (r) + goto out; + memcpy(&fbi->var, &new_var, sizeof(fbi->var)); + + set_fb_fix(fbi); + + r = omapfb_apply_changes(fbi, 0); + if (r) + goto out; + + r = count; +out: + unlock_fb_info(fbi); + + return r; +} + +static ssize_t show_overlays(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + ssize_t l = 0; + int t; + + omapfb_lock(fbdev); + lock_fb_info(fbi); + + for (t = 0; t < ofbi->num_overlays; t++) { + struct omap_overlay *ovl = ofbi->overlays[t]; + int ovlnum; + + for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum) + if (ovl == fbdev->overlays[ovlnum]) + break; + + l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", + t == 0 ? "" : ",", ovlnum); + } + + l += snprintf(buf + l, PAGE_SIZE - l, "\n"); + + unlock_fb_info(fbi); + omapfb_unlock(fbdev); + + return l; +} + +static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev, + struct omap_overlay *ovl) +{ + int i, t; + + for (i = 0; i < fbdev->num_fbs; i++) { + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); + + for (t = 0; t < ofbi->num_overlays; t++) { + if (ofbi->overlays[t] == ovl) + return ofbi; + } + } + + return NULL; +} + +static ssize_t store_overlays(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + struct omapfb2_device *fbdev = ofbi->fbdev; + struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB]; + struct omap_overlay *ovl; + int num_ovls, r, i; + int len; + bool added = false; + + num_ovls = 0; + + len = strlen(buf); + if (buf[len - 1] == '\n') + len = len - 1; + + omapfb_lock(fbdev); + lock_fb_info(fbi); + + if (len > 0) { + char *p = (char *)buf; + int ovlnum; + + while (p < buf + len) { + int found; + if (num_ovls == OMAPFB_MAX_OVL_PER_FB) { + r = -EINVAL; + goto out; + } + + ovlnum = simple_strtoul(p, &p, 0); + if (ovlnum > fbdev->num_overlays) { + r = -EINVAL; + goto out; + } + + found = 0; + for (i = 0; i < num_ovls; ++i) { + if (ovls[i] == fbdev->overlays[ovlnum]) { + found = 1; + break; + } + } + + if (!found) + ovls[num_ovls++] = fbdev->overlays[ovlnum]; + + p++; + } + } + + for (i = 0; i < num_ovls; ++i) { + struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]); + if (ofbi2 && ofbi2 != ofbi) { + dev_err(fbdev->dev, "overlay already in use\n"); + r = -EINVAL; + goto out; + } + } + + /* detach unused overlays */ + for (i = 0; i < ofbi->num_overlays; ++i) { + int t, found; + + ovl = ofbi->overlays[i]; + + found = 0; + + for (t = 0; t < num_ovls; ++t) { + if (ovl == ovls[t]) { + found = 1; + break; + } + } + + if (found) + continue; + + DBG("detaching %d\n", ofbi->overlays[i]->id); + + omapfb_overlay_enable(ovl, 0); + + if (ovl->manager) + ovl->manager->apply(ovl->manager); + + for (t = i + 1; t < ofbi->num_overlays; t++) { + ofbi->rotation[t-1] = ofbi->rotation[t]; + ofbi->overlays[t-1] = ofbi->overlays[t]; + } + + ofbi->num_overlays--; + i--; + } + + for (i = 0; i < num_ovls; ++i) { + int t, found; + + ovl = ovls[i]; + + found = 0; + + for (t = 0; t < ofbi->num_overlays; ++t) { + if (ovl == ofbi->overlays[t]) { + found = 1; + break; + } + } + + if (found) + continue; + ofbi->rotation[ofbi->num_overlays] = 0; + ofbi->overlays[ofbi->num_overlays++] = ovl; + + added = true; + } + + if (added) { + r = omapfb_apply_changes(fbi, 0); + if (r) + goto out; + } + + r = count; +out: + unlock_fb_info(fbi); + omapfb_unlock(fbdev); + + return r; +} + +static ssize_t show_overlays_rotate(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + ssize_t l = 0; + int t; + + lock_fb_info(fbi); + + for (t = 0; t < ofbi->num_overlays; t++) { + l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", + t == 0 ? "" : ",", ofbi->rotation[t]); + } + + l += snprintf(buf + l, PAGE_SIZE - l, "\n"); + + unlock_fb_info(fbi); + + return l; +} + +static ssize_t store_overlays_rotate(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + int num_ovls = 0, r, i; + int len; + bool changed = false; + u8 rotation[OMAPFB_MAX_OVL_PER_FB]; + + len = strlen(buf); + if (buf[len - 1] == '\n') + len = len - 1; + + lock_fb_info(fbi); + + if (len > 0) { + char *p = (char *)buf; + + while (p < buf + len) { + int rot; + + if (num_ovls == ofbi->num_overlays) { + r = -EINVAL; + goto out; + } + + rot = simple_strtoul(p, &p, 0); + if (rot < 0 || rot > 3) { + r = -EINVAL; + goto out; + } + + if (ofbi->rotation[num_ovls] != rot) + changed = true; + + rotation[num_ovls++] = rot; + + p++; + } + } + + if (num_ovls != ofbi->num_overlays) { + r = -EINVAL; + goto out; + } + + if (changed) { + for (i = 0; i < num_ovls; ++i) + ofbi->rotation[i] = rotation[i]; + + r = omapfb_apply_changes(fbi, 0); + if (r) + goto out; + + /* FIXME error handling? */ + } + + r = count; +out: + unlock_fb_info(fbi); + + return r; +} + +static ssize_t show_size(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + + return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region.size); +} + +static ssize_t store_size(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + unsigned long size; + int r; + int i; + + size = PAGE_ALIGN(simple_strtoul(buf, NULL, 0)); + + lock_fb_info(fbi); + + for (i = 0; i < ofbi->num_overlays; i++) { + if (ofbi->overlays[i]->info.enabled) { + r = -EBUSY; + goto out; + } + } + + if (size != ofbi->region.size) { + r = omapfb_realloc_fbmem(fbi, size, ofbi->region.type); + if (r) { + dev_err(dev, "realloc fbmem failed\n"); + goto out; + } + } + + r = count; +out: + unlock_fb_info(fbi); + + return r; +} + +static ssize_t show_phys(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + + return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region.paddr); +} + +static ssize_t show_virt(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct omapfb_info *ofbi = FB2OFB(fbi); + + return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region.vaddr); +} + +static struct device_attribute omapfb_attrs[] = { + __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type, + store_rotate_type), + __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror), + __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size), + __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays), + __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate, + store_overlays_rotate), + __ATTR(phys_addr, S_IRUGO, show_phys, NULL), + __ATTR(virt_addr, S_IRUGO, show_virt, NULL), +}; + +int omapfb_create_sysfs(struct omapfb2_device *fbdev) +{ + int i; + int r; + + DBG("create sysfs for fbs\n"); + for (i = 0; i < fbdev->num_fbs; i++) { + int t; + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) { + r = device_create_file(fbdev->fbs[i]->dev, + &omapfb_attrs[t]); + + if (r) { + dev_err(fbdev->dev, "failed to create sysfs " + "file\n"); + return r; + } + } + } + + return 0; +} + +void omapfb_remove_sysfs(struct omapfb2_device *fbdev) +{ + int i, t; + + DBG("remove sysfs for fbs\n"); + for (i = 0; i < fbdev->num_fbs; i++) { + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) + device_remove_file(fbdev->fbs[i]->dev, + &omapfb_attrs[t]); + } +} + diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h new file mode 100644 index 0000000..f7c9c73 --- /dev/null +++ b/drivers/video/omap2/omapfb/omapfb.h @@ -0,0 +1,146 @@ +/* + * linux/drivers/video/omap2/omapfb.h + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ +#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ + +#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT +#define DEBUG +#endif + +#include <plat/display.h> + +#ifdef DEBUG +extern unsigned int omapfb_debug; +#define DBG(format, ...) \ + if (omapfb_debug) \ + printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__) +#else +#define DBG(format, ...) +#endif + +#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par)) + +/* max number of overlays to which a framebuffer data can be direct */ +#define OMAPFB_MAX_OVL_PER_FB 3 + +struct omapfb2_mem_region { + u32 paddr; + void __iomem *vaddr; + struct vrfb vrfb; + unsigned long size; + u8 type; /* OMAPFB_PLANE_MEM_* */ + bool alloc; /* allocated by the driver */ + bool map; /* kernel mapped by the driver */ +}; + +/* appended to fb_info */ +struct omapfb_info { + int id; + struct omapfb2_mem_region region; + atomic_t map_count; + int num_overlays; + struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB]; + struct omapfb2_device *fbdev; + enum omap_dss_rotation_type rotation_type; + u8 rotation[OMAPFB_MAX_OVL_PER_FB]; + bool mirror; +}; + +struct omapfb2_device { + struct device *dev; + struct mutex mtx; + + u32 pseudo_palette[17]; + + int state; + + unsigned num_fbs; + struct fb_info *fbs[10]; + + unsigned num_displays; + struct omap_dss_device *displays[10]; + unsigned num_overlays; + struct omap_overlay *overlays[10]; + unsigned num_managers; + struct omap_overlay_manager *managers[10]; +}; + +struct omapfb_colormode { + enum omap_color_mode dssmode; + u32 bits_per_pixel; + u32 nonstd; + struct fb_bitfield red; + struct fb_bitfield green; + struct fb_bitfield blue; + struct fb_bitfield transp; +}; + +void set_fb_fix(struct fb_info *fbi); +int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var); +int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type); +int omapfb_apply_changes(struct fb_info *fbi, int init); + +int omapfb_create_sysfs(struct omapfb2_device *fbdev); +void omapfb_remove_sysfs(struct omapfb2_device *fbdev); + +int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg); + +int dss_mode_to_fb_mode(enum omap_color_mode dssmode, + struct fb_var_screeninfo *var); + +/* find the display connected to this fb, if any */ +static inline struct omap_dss_device *fb2display(struct fb_info *fbi) +{ + struct omapfb_info *ofbi = FB2OFB(fbi); + int i; + + /* XXX: returns the display connected to first attached overlay */ + for (i = 0; i < ofbi->num_overlays; i++) { + if (ofbi->overlays[i]->manager) + return ofbi->overlays[i]->manager->device; + } + + return NULL; +} + +static inline void omapfb_lock(struct omapfb2_device *fbdev) +{ + mutex_lock(&fbdev->mtx); +} + +static inline void omapfb_unlock(struct omapfb2_device *fbdev) +{ + mutex_unlock(&fbdev->mtx); +} + +static inline int omapfb_overlay_enable(struct omap_overlay *ovl, + int enable) +{ + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + info.enabled = enable; + return ovl->set_overlay_info(ovl, &info); +} + +#endif diff --git a/include/linux/omapfb.h b/include/linux/omapfb.h index a8efa92..f46c40a 100644 --- a/include/linux/omapfb.h +++ b/include/linux/omapfb.h @@ -24,6 +24,7 @@ #ifndef __LINUX_OMAPFB_H__ #define __LINUX_OMAPFB_H__ +#include <linux/fb.h> #include <linux/ioctl.h> #include <linux/types.h> @@ -50,6 +51,12 @@ #define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window) #define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info) #define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info) +#define OMAPFB_WAITFORVSYNC OMAP_IO(57) +#define OMAPFB_MEMORY_READ OMAP_IOR(58, struct omapfb_memory_read) +#define OMAPFB_GET_OVERLAY_COLORMODE OMAP_IOR(59, struct omapfb_ovl_colormode) +#define OMAPFB_WAITFORGO OMAP_IO(60) +#define OMAPFB_GET_VRAM_INFO OMAP_IOR(61, struct omapfb_vram_info) +#define OMAPFB_SET_TEARSYNC OMAP_IOW(62, struct omapfb_tearsync_info) #define OMAPFB_CAPS_GENERIC_MASK 0x00000fff #define OMAPFB_CAPS_LCDC_MASK 0x00fff000 @@ -87,6 +94,13 @@ enum omapfb_color_format { OMAPFB_COLOR_CLUT_1BPP, OMAPFB_COLOR_RGB444, OMAPFB_COLOR_YUY422, + + OMAPFB_COLOR_ARGB16, + OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */ + OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */ + OMAPFB_COLOR_ARGB32, + OMAPFB_COLOR_RGBA32, + OMAPFB_COLOR_RGBX32, }; struct omapfb_update_window { @@ -158,6 +172,40 @@ enum omapfb_update_mode { OMAPFB_MANUAL_UPDATE }; +struct omapfb_memory_read { + __u16 x; + __u16 y; + __u16 w; + __u16 h; + size_t buffer_size; + void __user *buffer; +}; + +struct omapfb_ovl_colormode { + __u8 overlay_idx; + __u8 mode_idx; + __u32 bits_per_pixel; + __u32 nonstd; + struct fb_bitfield red; + struct fb_bitfield green; + struct fb_bitfield blue; + struct fb_bitfield transp; +}; + +struct omapfb_vram_info { + __u32 total; + __u32 free; + __u32 largest_free_block; + __u32 reserved[5]; +}; + +struct omapfb_tearsync_info { + __u8 enabled; + __u8 reserved1[3]; + __u16 line; + __u16 reserved2; +}; + #ifdef __KERNEL__ #include <plat/board.h> @@ -173,6 +221,11 @@ struct omapfb_mem_region { void __iomem *vaddr; unsigned long size; u8 type; /* OMAPFB_PLANE_MEM_* */ + enum omapfb_color_format format;/* OMAPFB_COLOR_* */ + unsigned format_used:1; /* Must be set when format is set. + * Needed b/c of the badly chosen 0 + * base for OMAPFB_COLOR_* values + */ unsigned alloc:1; /* allocated by the driver */ unsigned map:1; /* kernel mapped by the driver */ }; @@ -189,6 +242,7 @@ struct omapfb_platform_data { }; /* in arch/arm/plat-omap/fb.c */ +extern void omapfb_set_platform_data(struct omapfb_platform_data *data); extern void omapfb_set_ctrl_platform_data(void *pdata); extern void omapfb_reserve_sdram(void); -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 16/19] OMAP: DSS2: Add DPI panel drivers 2009-11-09 11:45 ` [PATCH 15/19] OMAP: DSS2: omapfb driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 17/19] OMAP: DSS2: Taal DSI command mode panel driver Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel - Generic panel - Samsung LTE430WQ-F0C LCD Panel - Sharp LS037V7DW01 LCD Panel Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/Kconfig | 1 + drivers/video/omap2/Makefile | 1 + drivers/video/omap2/displays/Kconfig | 22 +++ drivers/video/omap2/displays/Makefile | 3 + drivers/video/omap2/displays/panel-generic.c | 104 +++++++++++++ .../omap2/displays/panel-samsung-lte430wq-f0c.c | 113 +++++++++++++++ .../video/omap2/displays/panel-sharp-ls037v7dw01.c | 153 ++++++++++++++++++++ 7 files changed, 397 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/displays/Kconfig create mode 100644 drivers/video/omap2/displays/Makefile create mode 100644 drivers/video/omap2/displays/panel-generic.c create mode 100644 drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c create mode 100644 drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig index 3e60d7e..d877c36 100644 --- a/drivers/video/omap2/Kconfig +++ b/drivers/video/omap2/Kconfig @@ -6,3 +6,4 @@ config OMAP2_VRFB source "drivers/video/omap2/dss/Kconfig" source "drivers/video/omap2/omapfb/Kconfig" +source "drivers/video/omap2/displays/Kconfig" diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile index 3ba6ef5..d853d05 100644 --- a/drivers/video/omap2/Makefile +++ b/drivers/video/omap2/Makefile @@ -3,3 +3,4 @@ obj-$(CONFIG_OMAP2_VRFB) += vrfb.o obj-y += dss/ obj-y += omapfb/ +obj-y += displays/ diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig new file mode 100644 index 0000000..396905d --- /dev/null +++ b/drivers/video/omap2/displays/Kconfig @@ -0,0 +1,22 @@ +menu "OMAP2/3 Display Device Drivers" + depends on OMAP2_DSS + +config PANEL_GENERIC + tristate "Generic Panel" + help + Generic panel driver. + Used for DVI output for Beagle and OMAP3 SDP. + +config PANEL_SAMSUNG_LTE430WQ_F0C + tristate "Samsung LTE430WQ-F0C LCD Panel" + depends on OMAP2_DSS + help + LCD Panel used on Overo Palo43 + +config PANEL_SHARP_LS037V7DW01 + tristate "Sharp LS037V7DW01 LCD Panel" + depends on OMAP2_DSS + help + LCD Panel used in TI's SDP3430 and EVM boards + +endmenu diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile new file mode 100644 index 0000000..a26bbd2 --- /dev/null +++ b/drivers/video/omap2/displays/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o +obj-$(CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C) += panel-samsung-lte430wq-f0c.o +obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o diff --git a/drivers/video/omap2/displays/panel-generic.c b/drivers/video/omap2/displays/panel-generic.c new file mode 100644 index 0000000..eb48d1a --- /dev/null +++ b/drivers/video/omap2/displays/panel-generic.c @@ -0,0 +1,104 @@ +/* + * Generic panel support + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/delay.h> + +#include <plat/display.h> + +static struct omap_video_timings generic_panel_timings = { + /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ + .x_res = 640, + .y_res = 480, + .pixel_clock = 23500, + .hfp = 48, + .hsw = 32, + .hbp = 80, + .vfp = 3, + .vsw = 4, + .vbp = 7, +}; + +static int generic_panel_probe(struct omap_dss_device *dssdev) +{ + dssdev->panel.config = OMAP_DSS_LCD_TFT; + dssdev->panel.timings = generic_panel_timings; + + return 0; +} + +static void generic_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int generic_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + if (dssdev->platform_enable) + r = dssdev->platform_enable(dssdev); + + return r; +} + +static void generic_panel_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); +} + +static int generic_panel_suspend(struct omap_dss_device *dssdev) +{ + generic_panel_disable(dssdev); + return 0; +} + +static int generic_panel_resume(struct omap_dss_device *dssdev) +{ + return generic_panel_enable(dssdev); +} + +static struct omap_dss_driver generic_driver = { + .probe = generic_panel_probe, + .remove = generic_panel_remove, + + .enable = generic_panel_enable, + .disable = generic_panel_disable, + .suspend = generic_panel_suspend, + .resume = generic_panel_resume, + + .driver = { + .name = "generic_panel", + .owner = THIS_MODULE, + }, +}; + +static int __init generic_panel_drv_init(void) +{ + return omap_dss_register_driver(&generic_driver); +} + +static void __exit generic_panel_drv_exit(void) +{ + omap_dss_unregister_driver(&generic_driver); +} + +module_init(generic_panel_drv_init); +module_exit(generic_panel_drv_exit); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c new file mode 100644 index 0000000..3f0477e --- /dev/null +++ b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c @@ -0,0 +1,113 @@ +/* + * LCD panel driver for Samsung LTE430WQ-F0C + * + * Author: Steve Sakoman <steve@sakoman.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/delay.h> + +#include <plat/display.h> + +static struct omap_video_timings samsung_lte_timings = { + .x_res = 480, + .y_res = 272, + + .pixel_clock = 9200, + + .hsw = 41, + .hfp = 8, + .hbp = 45-41, + + .vsw = 10, + .vfp = 4, + .vbp = 12-10, +}; + +static int samsung_lte_panel_probe(struct omap_dss_device *dssdev) +{ + dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS; + dssdev->panel.timings = samsung_lte_timings; + + return 0; +} + +static void samsung_lte_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int samsung_lte_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + /* wait couple of vsyncs until enabling the LCD */ + msleep(50); + + if (dssdev->platform_enable) + r = dssdev->platform_enable(dssdev); + + return r; +} + +static void samsung_lte_panel_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + /* wait at least 5 vsyncs after disabling the LCD */ + + msleep(100); +} + +static int samsung_lte_panel_suspend(struct omap_dss_device *dssdev) +{ + samsung_lte_panel_disable(dssdev); + return 0; +} + +static int samsung_lte_panel_resume(struct omap_dss_device *dssdev) +{ + return samsung_lte_panel_enable(dssdev); +} + +static struct omap_dss_driver samsung_lte_driver = { + .probe = samsung_lte_panel_probe, + .remove = samsung_lte_panel_remove, + + .enable = samsung_lte_panel_enable, + .disable = samsung_lte_panel_disable, + .suspend = samsung_lte_panel_suspend, + .resume = samsung_lte_panel_resume, + + .driver = { + .name = "samsung_lte_panel", + .owner = THIS_MODULE, + }, +}; + +static int __init samsung_lte_panel_drv_init(void) +{ + return omap_dss_register_driver(&samsung_lte_driver); +} + +static void __exit samsung_lte_panel_drv_exit(void) +{ + omap_dss_unregister_driver(&samsung_lte_driver); +} + +module_init(samsung_lte_panel_drv_init); +module_exit(samsung_lte_panel_drv_exit); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c new file mode 100644 index 0000000..bbe880b --- /dev/null +++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c @@ -0,0 +1,153 @@ +/* + * LCD panel driver for Sharp LS037V7DW01 + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/regulator/consumer.h> +#include <linux/err.h> + +#include <plat/display.h> + +struct sharp_data { + /* XXX This regulator should actually be in SDP board file, not here, + * as it doesn't actually power the LCD, but something else that + * affects the output to LCD (I think. Somebody clarify). It doesn't do + * harm here, as SDP is the only board using this currently */ + struct regulator *vdvi_reg; +}; + +static struct omap_video_timings sharp_ls_timings = { + .x_res = 480, + .y_res = 640, + + .pixel_clock = 19200, + + .hsw = 2, + .hfp = 1, + .hbp = 28, + + .vsw = 1, + .vfp = 1, + .vbp = 1, +}; + +static int sharp_ls_panel_probe(struct omap_dss_device *dssdev) +{ + struct sharp_data *sd; + + dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS; + dssdev->panel.acb = 0x28; + dssdev->panel.timings = sharp_ls_timings; + + sd = kzalloc(sizeof(*sd), GFP_KERNEL); + if (!sd) + return -ENOMEM; + + dev_set_drvdata(&dssdev->dev, sd); + + sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi"); + if (IS_ERR(sd->vdvi_reg)) { + kfree(sd); + pr_err("failed to get VDVI regulator\n"); + return PTR_ERR(sd->vdvi_reg); + } + + return 0; +} + +static void sharp_ls_panel_remove(struct omap_dss_device *dssdev) +{ + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); + + regulator_put(sd->vdvi_reg); + + kfree(sd); +} + +static int sharp_ls_panel_enable(struct omap_dss_device *dssdev) +{ + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); + int r = 0; + + /* wait couple of vsyncs until enabling the LCD */ + msleep(50); + + regulator_enable(sd->vdvi_reg); + + if (dssdev->platform_enable) + r = dssdev->platform_enable(dssdev); + + return r; +} + +static void sharp_ls_panel_disable(struct omap_dss_device *dssdev) +{ + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); + + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + regulator_disable(sd->vdvi_reg); + + /* wait at least 5 vsyncs after disabling the LCD */ + + msleep(100); +} + +static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev) +{ + sharp_ls_panel_disable(dssdev); + return 0; +} + +static int sharp_ls_panel_resume(struct omap_dss_device *dssdev) +{ + return sharp_ls_panel_enable(dssdev); +} + +static struct omap_dss_driver sharp_ls_driver = { + .probe = sharp_ls_panel_probe, + .remove = sharp_ls_panel_remove, + + .enable = sharp_ls_panel_enable, + .disable = sharp_ls_panel_disable, + .suspend = sharp_ls_panel_suspend, + .resume = sharp_ls_panel_resume, + + .driver = { + .name = "sharp_ls_panel", + .owner = THIS_MODULE, + }, +}; + +static int __init sharp_ls_panel_drv_init(void) +{ + return omap_dss_register_driver(&sharp_ls_driver); +} + +static void __exit sharp_ls_panel_drv_exit(void) +{ + omap_dss_unregister_driver(&sharp_ls_driver); +} + +module_init(sharp_ls_panel_drv_init); +module_exit(sharp_ls_panel_drv_exit); +MODULE_LICENSE("GPL"); -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 17/19] OMAP: DSS2: Taal DSI command mode panel driver 2009-11-09 11:45 ` [PATCH 16/19] OMAP: DSS2: Add DPI panel drivers Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 18/19] OMAP: SDP: Enable DSS2 for OMAP3 SDP board Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- drivers/video/omap2/displays/Kconfig | 6 + drivers/video/omap2/displays/Makefile | 2 + drivers/video/omap2/displays/panel-taal.c | 1003 +++++++++++++++++++++++++++++ 3 files changed, 1011 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/displays/panel-taal.c diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig index 396905d..79d2861 100644 --- a/drivers/video/omap2/displays/Kconfig +++ b/drivers/video/omap2/displays/Kconfig @@ -19,4 +19,10 @@ config PANEL_SHARP_LS037V7DW01 help LCD Panel used in TI's SDP3430 and EVM boards +config PANEL_TAAL + tristate "Taal DSI Panel" + depends on OMAP2_DSS_DSI + help + Taal DSI command mode panel from TPO. + endmenu diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile index a26bbd2..d44e765 100644 --- a/drivers/video/omap2/displays/Makefile +++ b/drivers/video/omap2/displays/Makefile @@ -1,3 +1,5 @@ obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o obj-$(CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C) += panel-samsung-lte430wq-f0c.o obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o + +obj-$(CONFIG_PANEL_TAAL) += panel-taal.o diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c new file mode 100644 index 0000000..1f01dfc --- /dev/null +++ b/drivers/video/omap2/displays/panel-taal.c @@ -0,0 +1,1003 @@ +/* + * Taal DSI command mode panel + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/*#define DEBUG*/ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/jiffies.h> +#include <linux/sched.h> +#include <linux/backlight.h> +#include <linux/fb.h> +#include <linux/interrupt.h> +#include <linux/gpio.h> +#include <linux/completion.h> +#include <linux/workqueue.h> + +#include <plat/display.h> + +/* DSI Virtual channel. Hardcoded for now. */ +#define TCH 0 + +#define DCS_READ_NUM_ERRORS 0x05 +#define DCS_READ_POWER_MODE 0x0a +#define DCS_READ_MADCTL 0x0b +#define DCS_READ_PIXEL_FORMAT 0x0c +#define DCS_RDDSDR 0x0f +#define DCS_SLEEP_IN 0x10 +#define DCS_SLEEP_OUT 0x11 +#define DCS_DISPLAY_OFF 0x28 +#define DCS_DISPLAY_ON 0x29 +#define DCS_COLUMN_ADDR 0x2a +#define DCS_PAGE_ADDR 0x2b +#define DCS_MEMORY_WRITE 0x2c +#define DCS_TEAR_OFF 0x34 +#define DCS_TEAR_ON 0x35 +#define DCS_MEM_ACC_CTRL 0x36 +#define DCS_PIXEL_FORMAT 0x3a +#define DCS_BRIGHTNESS 0x51 +#define DCS_CTRL_DISPLAY 0x53 +#define DCS_WRITE_CABC 0x55 +#define DCS_READ_CABC 0x56 +#define DCS_GET_ID1 0xda +#define DCS_GET_ID2 0xdb +#define DCS_GET_ID3 0xdc + +/* #define TAAL_USE_ESD_CHECK */ +#define TAAL_ESD_CHECK_PERIOD msecs_to_jiffies(5000) + +struct taal_data { + struct backlight_device *bldev; + + unsigned long hw_guard_end; /* next value of jiffies when we can + * issue the next sleep in/out command + */ + unsigned long hw_guard_wait; /* max guard time in jiffies */ + + struct omap_dss_device *dssdev; + + bool enabled; + u8 rotate; + bool mirror; + + bool te_enabled; + bool use_ext_te; + struct completion te_completion; + + bool use_dsi_bl; + + bool cabc_broken; + unsigned cabc_mode; + + bool intro_printed; + + struct workqueue_struct *esd_wq; + struct delayed_work esd_work; +}; + +static void taal_esd_work(struct work_struct *work); + +static void hw_guard_start(struct taal_data *td, int guard_msec) +{ + td->hw_guard_wait = msecs_to_jiffies(guard_msec); + td->hw_guard_end = jiffies + td->hw_guard_wait; +} + +static void hw_guard_wait(struct taal_data *td) +{ + unsigned long wait = td->hw_guard_end - jiffies; + + if ((long)wait > 0 && wait <= td->hw_guard_wait) { + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(wait); + } +} + +static int taal_dcs_read_1(u8 dcs_cmd, u8 *data) +{ + int r; + u8 buf[1]; + + r = dsi_vc_dcs_read(TCH, dcs_cmd, buf, 1); + + if (r < 0) + return r; + + *data = buf[0]; + + return 0; +} + +static int taal_dcs_write_0(u8 dcs_cmd) +{ + return dsi_vc_dcs_write(TCH, &dcs_cmd, 1); +} + +static int taal_dcs_write_1(u8 dcs_cmd, u8 param) +{ + u8 buf[2]; + buf[0] = dcs_cmd; + buf[1] = param; + return dsi_vc_dcs_write(TCH, buf, 2); +} + +static int taal_sleep_in(struct taal_data *td) + +{ + u8 cmd; + int r; + + hw_guard_wait(td); + + cmd = DCS_SLEEP_IN; + r = dsi_vc_dcs_write_nosync(TCH, &cmd, 1); + if (r) + return r; + + hw_guard_start(td, 120); + + msleep(5); + + return 0; +} + +static int taal_sleep_out(struct taal_data *td) +{ + int r; + + hw_guard_wait(td); + + r = taal_dcs_write_0(DCS_SLEEP_OUT); + if (r) + return r; + + hw_guard_start(td, 120); + + msleep(5); + + return 0; +} + +static int taal_get_id(u8 *id1, u8 *id2, u8 *id3) +{ + int r; + + r = taal_dcs_read_1(DCS_GET_ID1, id1); + if (r) + return r; + r = taal_dcs_read_1(DCS_GET_ID2, id2); + if (r) + return r; + r = taal_dcs_read_1(DCS_GET_ID3, id3); + if (r) + return r; + + return 0; +} + +static int taal_set_addr_mode(u8 rotate, bool mirror) +{ + int r; + u8 mode; + int b5, b6, b7; + + r = taal_dcs_read_1(DCS_READ_MADCTL, &mode); + if (r) + return r; + + switch (rotate) { + default: + case 0: + b7 = 0; + b6 = 0; + b5 = 0; + break; + case 1: + b7 = 0; + b6 = 1; + b5 = 1; + break; + case 2: + b7 = 1; + b6 = 1; + b5 = 0; + break; + case 3: + b7 = 1; + b6 = 0; + b5 = 1; + break; + } + + if (mirror) + b6 = !b6; + + mode &= ~((1<<7) | (1<<6) | (1<<5)); + mode |= (b7 << 7) | (b6 << 6) | (b5 << 5); + + return taal_dcs_write_1(DCS_MEM_ACC_CTRL, mode); +} + +static int taal_set_update_window(u16 x, u16 y, u16 w, u16 h) +{ + int r; + u16 x1 = x; + u16 x2 = x + w - 1; + u16 y1 = y; + u16 y2 = y + h - 1; + + u8 buf[5]; + buf[0] = DCS_COLUMN_ADDR; + buf[1] = (x1 >> 8) & 0xff; + buf[2] = (x1 >> 0) & 0xff; + buf[3] = (x2 >> 8) & 0xff; + buf[4] = (x2 >> 0) & 0xff; + + r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf)); + if (r) + return r; + + buf[0] = DCS_PAGE_ADDR; + buf[1] = (y1 >> 8) & 0xff; + buf[2] = (y1 >> 0) & 0xff; + buf[3] = (y2 >> 8) & 0xff; + buf[4] = (y2 >> 0) & 0xff; + + r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf)); + if (r) + return r; + + dsi_vc_send_bta_sync(TCH); + + return r; +} + +static int taal_bl_update_status(struct backlight_device *dev) +{ + struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev); + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + int r; + int level; + + if (dev->props.fb_blank == FB_BLANK_UNBLANK && + dev->props.power == FB_BLANK_UNBLANK) + level = dev->props.brightness; + else + level = 0; + + dev_dbg(&dssdev->dev, "update brightness to %d\n", level); + + if (td->use_dsi_bl) { + if (td->enabled) { + dsi_bus_lock(); + r = taal_dcs_write_1(DCS_BRIGHTNESS, level); + dsi_bus_unlock(); + if (r) + return r; + } + } else { + if (!dssdev->set_backlight) + return -EINVAL; + + r = dssdev->set_backlight(dssdev, level); + if (r) + return r; + } + + return 0; +} + +static int taal_bl_get_intensity(struct backlight_device *dev) +{ + if (dev->props.fb_blank == FB_BLANK_UNBLANK && + dev->props.power == FB_BLANK_UNBLANK) + return dev->props.brightness; + + return 0; +} + +static struct backlight_ops taal_bl_ops = { + .get_brightness = taal_bl_get_intensity, + .update_status = taal_bl_update_status, +}; + +static void taal_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +static void taal_get_resolution(struct omap_dss_device *dssdev, + u16 *xres, u16 *yres) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + + if (td->rotate == 0 || td->rotate == 2) { + *xres = dssdev->panel.timings.x_res; + *yres = dssdev->panel.timings.y_res; + } else { + *yres = dssdev->panel.timings.x_res; + *xres = dssdev->panel.timings.y_res; + } +} + +static irqreturn_t taal_te_isr(int irq, void *data) +{ + struct omap_dss_device *dssdev = data; + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + + complete_all(&td->te_completion); + + return IRQ_HANDLED; +} + +static ssize_t taal_num_errors_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + u8 errors; + int r; + + if (td->enabled) { + dsi_bus_lock(); + r = taal_dcs_read_1(DCS_READ_NUM_ERRORS, &errors); + dsi_bus_unlock(); + } else { + r = -ENODEV; + } + + if (r) + return r; + + return snprintf(buf, PAGE_SIZE, "%d\n", errors); +} + +static ssize_t taal_hw_revision_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + u8 id1, id2, id3; + int r; + + if (td->enabled) { + dsi_bus_lock(); + r = taal_get_id(&id1, &id2, &id3); + dsi_bus_unlock(); + } else { + r = -ENODEV; + } + + if (r) + return r; + + return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3); +} + +static const char *cabc_modes[] = { + "off", /* used also always when CABC is not supported */ + "ui", + "still-image", + "moving-image", +}; + +static ssize_t show_cabc_mode(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + const char *mode_str; + int mode; + int len; + + mode = td->cabc_mode; + + mode_str = "unknown"; + if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes)) + mode_str = cabc_modes[mode]; + len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str); + + return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1; +} + +static ssize_t store_cabc_mode(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + int i; + + for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) { + if (sysfs_streq(cabc_modes[i], buf)) + break; + } + + if (i == ARRAY_SIZE(cabc_modes)) + return -EINVAL; + + if (td->enabled) { + dsi_bus_lock(); + if (!td->cabc_broken) + taal_dcs_write_1(DCS_WRITE_CABC, i); + dsi_bus_unlock(); + } + + td->cabc_mode = i; + + return count; +} + +static ssize_t show_cabc_available_modes(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int len; + int i; + + for (i = 0, len = 0; + len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++) + len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s", + i ? " " : "", cabc_modes[i], + i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : ""); + + return len < PAGE_SIZE ? len : PAGE_SIZE - 1; +} + +static DEVICE_ATTR(num_dsi_errors, S_IRUGO, taal_num_errors_show, NULL); +static DEVICE_ATTR(hw_revision, S_IRUGO, taal_hw_revision_show, NULL); +static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR, + show_cabc_mode, store_cabc_mode); +static DEVICE_ATTR(cabc_available_modes, S_IRUGO, + show_cabc_available_modes, NULL); + +static struct attribute *taal_attrs[] = { + &dev_attr_num_dsi_errors.attr, + &dev_attr_hw_revision.attr, + &dev_attr_cabc_mode.attr, + &dev_attr_cabc_available_modes.attr, + NULL, +}; + +static struct attribute_group taal_attr_group = { + .attrs = taal_attrs, +}; + +static int taal_probe(struct omap_dss_device *dssdev) +{ + struct taal_data *td; + struct backlight_device *bldev; + int r; + + const struct omap_video_timings taal_panel_timings = { + .x_res = 864, + .y_res = 480, + }; + + dev_dbg(&dssdev->dev, "probe\n"); + + dssdev->panel.config = OMAP_DSS_LCD_TFT; + dssdev->panel.timings = taal_panel_timings; + dssdev->ctrl.pixel_size = 24; + + td = kzalloc(sizeof(*td), GFP_KERNEL); + if (!td) { + r = -ENOMEM; + goto err0; + } + td->dssdev = dssdev; + + td->esd_wq = create_singlethread_workqueue("taal_esd"); + if (td->esd_wq == NULL) { + dev_err(&dssdev->dev, "can't create ESD workqueue\n"); + r = -ENOMEM; + goto err2; + } + INIT_DELAYED_WORK_DEFERRABLE(&td->esd_work, taal_esd_work); + + dev_set_drvdata(&dssdev->dev, td); + + dssdev->get_timings = taal_get_timings; + dssdev->get_resolution = taal_get_resolution; + + /* if no platform set_backlight() defined, presume DSI backlight + * control */ + if (!dssdev->set_backlight) + td->use_dsi_bl = true; + + bldev = backlight_device_register("taal", &dssdev->dev, dssdev, + &taal_bl_ops); + if (IS_ERR(bldev)) { + r = PTR_ERR(bldev); + goto err1; + } + + td->bldev = bldev; + + bldev->props.fb_blank = FB_BLANK_UNBLANK; + bldev->props.power = FB_BLANK_UNBLANK; + if (td->use_dsi_bl) { + bldev->props.max_brightness = 255; + bldev->props.brightness = 255; + } else { + bldev->props.max_brightness = 127; + bldev->props.brightness = 127; + } + + taal_bl_update_status(bldev); + + if (dssdev->phy.dsi.ext_te) { + int gpio = dssdev->phy.dsi.ext_te_gpio; + + r = gpio_request(gpio, "taal irq"); + if (r) { + dev_err(&dssdev->dev, "GPIO request failed\n"); + goto err3; + } + + gpio_direction_input(gpio); + + r = request_irq(gpio_to_irq(gpio), taal_te_isr, + IRQF_DISABLED | IRQF_TRIGGER_RISING, + "taal vsync", dssdev); + + if (r) { + dev_err(&dssdev->dev, "IRQ request failed\n"); + gpio_free(gpio); + goto err3; + } + + init_completion(&td->te_completion); + + td->use_ext_te = true; + } + + r = sysfs_create_group(&dssdev->dev.kobj, &taal_attr_group); + if (r) { + dev_err(&dssdev->dev, "failed to create sysfs files\n"); + goto err4; + } + + return 0; +err4: + if (td->use_ext_te) { + int gpio = dssdev->phy.dsi.ext_te_gpio; + free_irq(gpio_to_irq(gpio), dssdev); + gpio_free(gpio); + } +err3: + backlight_device_unregister(bldev); +err2: + cancel_delayed_work_sync(&td->esd_work); + destroy_workqueue(td->esd_wq); +err1: + kfree(td); +err0: + return r; +} + +static void taal_remove(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bldev; + + dev_dbg(&dssdev->dev, "remove\n"); + + sysfs_remove_group(&dssdev->dev.kobj, &taal_attr_group); + + if (td->use_ext_te) { + int gpio = dssdev->phy.dsi.ext_te_gpio; + free_irq(gpio_to_irq(gpio), dssdev); + gpio_free(gpio); + } + + bldev = td->bldev; + bldev->props.power = FB_BLANK_POWERDOWN; + taal_bl_update_status(bldev); + backlight_device_unregister(bldev); + + cancel_delayed_work_sync(&td->esd_work); + destroy_workqueue(td->esd_wq); + + kfree(td); +} + +static int taal_enable(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + u8 id1, id2, id3; + int r; + + dev_dbg(&dssdev->dev, "enable\n"); + + if (dssdev->platform_enable) { + r = dssdev->platform_enable(dssdev); + if (r) + return r; + } + + /* it seems we have to wait a bit until taal is ready */ + msleep(5); + + r = taal_sleep_out(td); + if (r) + goto err; + + r = taal_get_id(&id1, &id2, &id3); + if (r) + goto err; + + /* on early revisions CABC is broken */ + if (id2 == 0x00 || id2 == 0xff || id2 == 0x81) + td->cabc_broken = true; + + taal_dcs_write_1(DCS_BRIGHTNESS, 0xff); + taal_dcs_write_1(DCS_CTRL_DISPLAY, (1<<2) | (1<<5)); /* BL | BCTRL */ + + taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */ + + taal_set_addr_mode(td->rotate, td->mirror); + if (!td->cabc_broken) + taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode); + + taal_dcs_write_0(DCS_DISPLAY_ON); + +#ifdef TAAL_USE_ESD_CHECK + queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD); +#endif + + td->enabled = 1; + + if (!td->intro_printed) { + dev_info(&dssdev->dev, "revision %02x.%02x.%02x\n", + id1, id2, id3); + if (td->cabc_broken) + dev_info(&dssdev->dev, + "old Taal version, CABC disabled\n"); + td->intro_printed = true; + } + + return 0; +err: + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + return r; +} + +static void taal_disable(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + + dev_dbg(&dssdev->dev, "disable\n"); + + cancel_delayed_work(&td->esd_work); + + taal_dcs_write_0(DCS_DISPLAY_OFF); + taal_sleep_in(td); + + /* wait a bit so that the message goes through */ + msleep(10); + + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + td->enabled = 0; +} + +static int taal_suspend(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bldev = td->bldev; + + bldev->props.power = FB_BLANK_POWERDOWN; + taal_bl_update_status(bldev); + + return 0; +} + +static int taal_resume(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bldev = td->bldev; + + bldev->props.power = FB_BLANK_UNBLANK; + taal_bl_update_status(bldev); + + return 0; +} + +static void taal_setup_update(struct omap_dss_device *dssdev, + u16 x, u16 y, u16 w, u16 h) +{ + taal_set_update_window(x, y, w, h); +} + +static int taal_enable_te(struct omap_dss_device *dssdev, bool enable) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + int r; + + td->te_enabled = enable; + + if (enable) + r = taal_dcs_write_1(DCS_TEAR_ON, 0); + else + r = taal_dcs_write_0(DCS_TEAR_OFF); + + return r; +} + +static int taal_wait_te(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + long wait = msecs_to_jiffies(500); + + if (!td->use_ext_te || !td->te_enabled) + return 0; + + INIT_COMPLETION(td->te_completion); + wait = wait_for_completion_timeout(&td->te_completion, wait); + if (wait == 0) { + dev_err(&dssdev->dev, "timeout waiting TE\n"); + return -ETIME; + } + + return 0; +} + +static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + int r; + + dev_dbg(&dssdev->dev, "rotate %d\n", rotate); + + if (td->enabled) { + r = taal_set_addr_mode(rotate, td->mirror); + + if (r) + return r; + } + + td->rotate = rotate; + + return 0; +} + +static u8 taal_get_rotate(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + return td->rotate; +} + +static int taal_mirror(struct omap_dss_device *dssdev, bool enable) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + int r; + + dev_dbg(&dssdev->dev, "mirror %d\n", enable); + + if (td->enabled) { + r = taal_set_addr_mode(td->rotate, enable); + + if (r) + return r; + } + + td->mirror = enable; + + return 0; +} + +static bool taal_get_mirror(struct omap_dss_device *dssdev) +{ + struct taal_data *td = dev_get_drvdata(&dssdev->dev); + return td->mirror; +} + +static int taal_run_test(struct omap_dss_device *dssdev, int test_num) +{ + u8 id1, id2, id3; + int r; + + r = taal_dcs_read_1(DCS_GET_ID1, &id1); + if (r) + return r; + r = taal_dcs_read_1(DCS_GET_ID2, &id2); + if (r) + return r; + r = taal_dcs_read_1(DCS_GET_ID3, &id3); + if (r) + return r; + + return 0; +} + +static int taal_memory_read(struct omap_dss_device *dssdev, + void *buf, size_t size, + u16 x, u16 y, u16 w, u16 h) +{ + int r; + int first = 1; + int plen; + unsigned buf_used = 0; + + if (size < w * h * 3) + return -ENOMEM; + + size = min(w * h * 3, + dssdev->panel.timings.x_res * + dssdev->panel.timings.y_res * 3); + + /* plen 1 or 2 goes into short packet. until checksum error is fixed, + * use short packets. plen 32 works, but bigger packets seem to cause + * an error. */ + if (size % 2) + plen = 1; + else + plen = 2; + + taal_setup_update(dssdev, x, y, w, h); + + r = dsi_vc_set_max_rx_packet_size(TCH, plen); + if (r) + return r; + + while (buf_used < size) { + u8 dcs_cmd = first ? 0x2e : 0x3e; + first = 0; + + r = dsi_vc_dcs_read(TCH, dcs_cmd, + buf + buf_used, size - buf_used); + + if (r < 0) { + dev_err(&dssdev->dev, "read error\n"); + goto err; + } + + buf_used += r; + + if (r < plen) { + dev_err(&dssdev->dev, "short read\n"); + break; + } + + if (signal_pending(current)) { + dev_err(&dssdev->dev, "signal pending, " + "aborting memory read\n"); + r = -ERESTARTSYS; + goto err; + } + } + + r = buf_used; + +err: + dsi_vc_set_max_rx_packet_size(TCH, 1); + + return r; +} + +static void taal_esd_work(struct work_struct *work) +{ + struct taal_data *td = container_of(work, struct taal_data, + esd_work.work); + struct omap_dss_device *dssdev = td->dssdev; + u8 state1, state2; + int r; + + if (!td->enabled) + return; + + dsi_bus_lock(); + + r = taal_dcs_read_1(DCS_RDDSDR, &state1); + if (r) { + dev_err(&dssdev->dev, "failed to read Taal status\n"); + goto err; + } + + /* Run self diagnostics */ + r = taal_sleep_out(td); + if (r) { + dev_err(&dssdev->dev, "failed to run Taal self-diagnostics\n"); + goto err; + } + + r = taal_dcs_read_1(DCS_RDDSDR, &state2); + if (r) { + dev_err(&dssdev->dev, "failed to read Taal status\n"); + goto err; + } + + /* Each sleep out command will trigger a self diagnostic and flip + * Bit6 if the test passes. + */ + if (!((state1 ^ state2) & (1 << 6))) { + dev_err(&dssdev->dev, "LCD self diagnostics failed\n"); + goto err; + } + /* Self-diagnostics result is also shown on TE GPIO line. We need + * to re-enable TE after self diagnostics */ + if (td->use_ext_te && td->te_enabled) + taal_enable_te(dssdev, true); + + dsi_bus_unlock(); + + queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD); + + return; +err: + dev_err(&dssdev->dev, "performing LCD reset\n"); + + taal_disable(dssdev); + taal_enable(dssdev); + + dsi_bus_unlock(); + + queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD); +} + +static struct omap_dss_driver taal_driver = { + .probe = taal_probe, + .remove = taal_remove, + + .enable = taal_enable, + .disable = taal_disable, + .suspend = taal_suspend, + .resume = taal_resume, + + .setup_update = taal_setup_update, + .enable_te = taal_enable_te, + .wait_for_te = taal_wait_te, + .set_rotate = taal_rotate, + .get_rotate = taal_get_rotate, + .set_mirror = taal_mirror, + .get_mirror = taal_get_mirror, + .run_test = taal_run_test, + .memory_read = taal_memory_read, + + .driver = { + .name = "taal", + .owner = THIS_MODULE, + }, +}; + +static int __init taal_init(void) +{ + omap_dss_register_driver(&taal_driver); + + return 0; +} + +static void __exit taal_exit(void) +{ + omap_dss_unregister_driver(&taal_driver); +} + +module_init(taal_init); +module_exit(taal_exit); + +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); +MODULE_DESCRIPTION("Taal Driver"); +MODULE_LICENSE("GPL"); -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 18/19] OMAP: SDP: Enable DSS2 for OMAP3 SDP board 2009-11-09 11:45 ` [PATCH 17/19] OMAP: DSS2: Taal DSI command mode panel driver Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 19/19] MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> --- arch/arm/configs/omap_3430sdp_defconfig | 32 +++++- arch/arm/mach-omap2/board-3430sdp.c | 167 ++++++++++++++++++++++++++++--- 2 files changed, 179 insertions(+), 20 deletions(-) diff --git a/arch/arm/configs/omap_3430sdp_defconfig b/arch/arm/configs/omap_3430sdp_defconfig index 8a4a7e2..730ada3 100644 --- a/arch/arm/configs/omap_3430sdp_defconfig +++ b/arch/arm/configs/omap_3430sdp_defconfig @@ -1077,6 +1077,8 @@ CONFIG_TWL4030_CORE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_TWL4030=y # # Multimedia devices @@ -1336,10 +1338,33 @@ CONFIG_FB_CFB_IMAGEBLIT=y # # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set -CONFIG_FB_OMAP=y -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set +# CONFIG_FB_METRONOME is not set +# CONFIG_FB_MB862XX is not set +# CONFIG_FB_BROADSHEET is not set +# CONFIG_FB_OMAP_LCD_VGA is not set # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2 +CONFIG_OMAP2_VRAM=y +CONFIG_OMAP2_VRFB=y +CONFIG_OMAP2_DSS=y +CONFIG_OMAP2_VRAM_SIZE=4 +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y +# CONFIG_OMAP2_DSS_RFBI is not set +CONFIG_OMAP2_DSS_VENC=y +# CONFIG_OMAP2_DSS_SDI is not set +# CONFIG_OMAP2_DSS_DSI is not set +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0 +CONFIG_FB_OMAP2=y +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set +CONFIG_FB_OMAP2_NUM_FBS=3 + +# +# OMAP2/3 Display Device Drivers +# +CONFIG_PANEL_GENERIC=y +# CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C is not set +CONFIG_PANEL_SHARP_LS037V7DW01=y # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # @@ -1703,7 +1728,6 @@ CONFIG_RTC_DRV_TWL4030=y # on-CPU RTC drivers # # CONFIG_DMADEVICES is not set -# CONFIG_REGULATOR is not set # CONFIG_UIO is not set # CONFIG_STAGING is not set diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 7c1bbe2..da46036 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -37,6 +37,7 @@ #include <plat/common.h> #include <plat/dma.h> #include <plat/gpmc.h> +#include <plat/display.h> #include <plat/control.h> #include <plat/gpmc-smc91x.h> @@ -152,31 +153,152 @@ static struct spi_board_info sdp3430_spi_board_info[] __initdata = { }, }; -static struct platform_device sdp3430_lcd_device = { - .name = "sdp2430_lcd", - .id = -1, + +#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8 +#define SDP3430_LCD_PANEL_ENABLE_GPIO 5 + +static unsigned backlight_gpio; +static unsigned enable_gpio; +static int lcd_enabled; +static int dvi_enabled; + +static void __init sdp3430_display_init(void) +{ + int r; + + enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO; + backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO; + + r = gpio_request(enable_gpio, "LCD reset"); + if (r) { + printk(KERN_ERR "failed to get LCD reset GPIO\n"); + goto err0; + } + + r = gpio_request(backlight_gpio, "LCD Backlight"); + if (r) { + printk(KERN_ERR "failed to get LCD backlight GPIO\n"); + goto err1; + } + + gpio_direction_output(enable_gpio, 0); + gpio_direction_output(backlight_gpio, 0); + + return; +err1: + gpio_free(enable_gpio); +err0: + return; +} + +static int sdp3430_panel_enable_lcd(struct omap_dss_device *dssdev) +{ + if (dvi_enabled) { + printk(KERN_ERR "cannot enable LCD, DVI is enabled\n"); + return -EINVAL; + } + + gpio_direction_output(enable_gpio, 1); + gpio_direction_output(backlight_gpio, 1); + + lcd_enabled = 1; + + return 0; +} + +static void sdp3430_panel_disable_lcd(struct omap_dss_device *dssdev) +{ + lcd_enabled = 0; + + gpio_direction_output(enable_gpio, 0); + gpio_direction_output(backlight_gpio, 0); +} + +static int sdp3430_panel_enable_dvi(struct omap_dss_device *dssdev) +{ + if (lcd_enabled) { + printk(KERN_ERR "cannot enable DVI, LCD is enabled\n"); + return -EINVAL; + } + + dvi_enabled = 1; + + return 0; +} + +static void sdp3430_panel_disable_dvi(struct omap_dss_device *dssdev) +{ + dvi_enabled = 0; +} + +static int sdp3430_panel_enable_tv(struct omap_dss_device *dssdev) +{ + return 0; +} + +static void sdp3430_panel_disable_tv(struct omap_dss_device *dssdev) +{ +} + + +static struct omap_dss_device sdp3430_lcd_device = { + .name = "lcd", + .driver_name = "sharp_ls_panel", + .type = OMAP_DISPLAY_TYPE_DPI, + .phy.dpi.data_lines = 16, + .platform_enable = sdp3430_panel_enable_lcd, + .platform_disable = sdp3430_panel_disable_lcd, }; -static struct regulator_consumer_supply sdp3430_vdac_supply = { - .supply = "vdac", - .dev = &sdp3430_lcd_device.dev, +static struct omap_dss_device sdp3430_dvi_device = { + .name = "dvi", + .driver_name = "generic_panel", + .type = OMAP_DISPLAY_TYPE_DPI, + .phy.dpi.data_lines = 24, + .platform_enable = sdp3430_panel_enable_dvi, + .platform_disable = sdp3430_panel_disable_dvi, }; -static struct regulator_consumer_supply sdp3430_vdvi_supply = { - .supply = "vdvi", - .dev = &sdp3430_lcd_device.dev, +static struct omap_dss_device sdp3430_tv_device = { + .name = "tv", + .driver_name = "venc", + .type = OMAP_DISPLAY_TYPE_VENC, + .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO, + .platform_enable = sdp3430_panel_enable_tv, + .platform_disable = sdp3430_panel_disable_tv, }; -static struct platform_device *sdp3430_devices[] __initdata = { + +static struct omap_dss_device *sdp3430_dss_devices[] = { &sdp3430_lcd_device, + &sdp3430_dvi_device, + &sdp3430_tv_device, }; -static struct omap_lcd_config sdp3430_lcd_config __initdata = { - .ctrl_name = "internal", +static struct omap_dss_board_info sdp3430_dss_data = { + .num_devices = ARRAY_SIZE(sdp3430_dss_devices), + .devices = sdp3430_dss_devices, + .default_device = &sdp3430_lcd_device, +}; + +static struct platform_device sdp3430_dss_device = { + .name = "omapdss", + .id = -1, + .dev = { + .platform_data = &sdp3430_dss_data, + }, +}; + +static struct regulator_consumer_supply sdp3430_vdda_dac_supply = { + .supply = "vdda_dac", + .dev = &sdp3430_dss_device.dev, +}; + +static struct platform_device *sdp3430_devices[] __initdata = { + &sdp3430_dss_device, }; static struct omap_board_config_kernel sdp3430_config[] __initdata = { - { OMAP_TAG_LCD, &sdp3430_lcd_config }, }; static void __init omap_3430sdp_init_irq(void) @@ -392,22 +514,34 @@ static struct regulator_init_data sdp3430_vdac = { | REGULATOR_CHANGE_STATUS, }, .num_consumer_supplies = 1, - .consumer_supplies = &sdp3430_vdac_supply, + .consumer_supplies = &sdp3430_vdda_dac_supply, }; /* VPLL2 for digital video outputs */ +static struct regulator_consumer_supply sdp3430_vpll2_supplies[] = { + { + .supply = "vdvi", + .dev = &sdp3430_lcd_device.dev, + }, + { + .supply = "vdds_dsi", + .dev = &sdp3430_dss_device.dev, + } +}; + static struct regulator_init_data sdp3430_vpll2 = { .constraints = { .name = "VDVI", .min_uV = 1800000, .max_uV = 1800000, + .apply_uV = true, .valid_modes_mask = REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY, .valid_ops_mask = REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, }, - .num_consumer_supplies = 1, - .consumer_supplies = &sdp3430_vdvi_supply, + .num_consumer_supplies = ARRAY_SIZE(sdp3430_vpll2_supplies), + .consumer_supplies = sdp3430_vpll2_supplies, }; static struct twl4030_codec_audio_data sdp3430_audio = { @@ -508,6 +642,7 @@ static void __init omap_3430sdp_init(void) omap_serial_init(); usb_musb_init(); board_smc91x_init(); + sdp3430_display_init(); enable_board_wakeup_source(); } -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* [PATCH 19/19] MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer 2009-11-09 11:45 ` [PATCH 18/19] OMAP: SDP: Enable DSS2 for OMAP3 SDP board Tomi Valkeinen @ 2009-11-09 11:45 ` Tomi Valkeinen 0 siblings, 0 replies; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-09 11:45 UTC (permalink / raw) To: linux-kernel; +Cc: linux-omap, linux-fbdev-devel Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- MAINTAINERS | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index cd633a6..0939a2f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3853,6 +3853,23 @@ L: linux-omap@vger.kernel.org S: Maintained F: drivers/video/omap/ +OMAP DISPLAY SUBSYSTEM SUPPORT (DSS2) +M: Tomi Valkeinen <tomi.valkeinen@nokia.com> +L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-omap@vger.kernel.org +S: Maintained +F: drivers/video/omap2/dss/ +F: drivers/video/omap2/vrfb.c +F: drivers/video/omap2/vram.c +F: Documentation/arm/OMAP/DSS + +OMAP FRAMEBUFFER SUPPORT (FOR DSS2) +M: Tomi Valkeinen <tomi.valkeinen@nokia.com> +L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-omap@vger.kernel.org +S: Maintained +F: drivers/video/omap2/omapfb/ + OMAP MMC SUPPORT M: Jarkko Lavinen <jarkko.lavinen@nokia.com> L: linux-omap@vger.kernel.org -- 1.6.5.1 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ^ permalink raw reply related [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-09 11:45 [PATCH 00/19] OMAP: DSS2 v5 intro Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers Tomi Valkeinen @ 2009-11-10 12:40 ` Artem Bityutskiy 2009-11-11 8:45 ` Tomi Valkeinen 1 sibling, 1 reply; 32+ messages in thread From: Artem Bityutskiy @ 2009-11-10 12:40 UTC (permalink / raw) To: Tomi Valkeinen Cc: linux-kernel, linux-omap, linux-fbdev-devel, Stephen Rothwell Tomi, could you please kindly ask Stephen (CCed) to include the DSS2 tree into linux-next, because you are going to merge it the next merge window, and there does not seem to be any blocker for this. Being in linux-next for a while is really important. On Mon, 2009-11-09 at 13:45 +0200, Tomi Valkeinen wrote: > This patch set implement new display subsystem driver (DSS2) and omapfb driver > for OMAP2/3. The patches have been reviewed on linux-omap and linux-fbdev-devel > mailing lists. The patches can also be found from master branch in > http://gitorious.org/linux-omap-dss2/linux. The branch is based on the > linux-next tree. > > The patches include DSS documentation patch that includes more instructions for > module parameters, sysfs files etc. > > The patches enable DSS2 for OMAP3430 SDP board and support for other boards can > be sent after the DSS2 has been merged. DSS2 is used in various boards, for > example Nokia N900, Beagle Board and Overo. > > I don't currently have any OMAP2 board to test DSS2, but it has worked on OMAP2 > and the possible fixes needed should be minimal. > > OMAP1 is not supported, and so the old DSS needs to be used on OMAP1 boards. My > longer term plan is to move all OMAP2 stuff from the old DSS to the new one, > and then shrink the old DSS to support OMAP1 only. > > DSS2 is partly based on the old omapfb driver by Imre Deak, and Imre has also > contributed to DSS2 quite a bit. Ville Syrjälä has been contributing to scaling > and tv-out work, and Topi Pohjolainen to VRFB. Also some contributions have > been made by Hardik Shah, Vaibhav Hiremath, and perhaps some others that I have > forgotten =). Tomi, could you please kindly ask Stephen (CCed) to include the DSS2 tree into linux-next, because you are going to merge it the next merge window, and there does not seem to be any blocker for this. Being in linux-next for a while is really important. -- Best Regards, Artem Bityutskiy (Артём Битюцкий) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-10 12:40 ` [PATCH 00/19] OMAP: DSS2 v5 intro Artem Bityutskiy @ 2009-11-11 8:45 ` Tomi Valkeinen 2009-11-11 9:44 ` Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-11 8:45 UTC (permalink / raw) To: Stephen Rothwell Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > Tomi, > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > linux-next, because you are going to merge it the next merge window, and > there does not seem to be any blocker for this. > > Being in linux-next for a while is really important. Stephen, would this be possible? DSS2 driver is rather big piece of code, even if it's quite isolated, so it would be nice to have it in linux-next. What does it require from me? A git tree, obviously, but what should it be based on? Tomi ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-11 8:45 ` Tomi Valkeinen @ 2009-11-11 9:44 ` Tomi Valkeinen 2009-11-11 18:42 ` Tony Lindgren 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-11 9:44 UTC (permalink / raw) To: Stephen Rothwell, ext Tony Lindgren Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) wrote: > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > Tomi, > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > linux-next, because you are going to merge it the next merge window, and > > there does not seem to be any blocker for this. > > > > Being in linux-next for a while is really important. > > Stephen, would this be possible? DSS2 driver is rather big piece of > code, even if it's quite isolated, so it would be nice to have it in > linux-next. > > What does it require from me? A git tree, obviously, but what should it > be based on? Ah, I just realized that DSS2 patches depend on patches from Tony's tree. I guess I should base my tree on top of some Tony's tree that is going to linux-next? Tomi ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-11 9:44 ` Tomi Valkeinen @ 2009-11-11 18:42 ` Tony Lindgren 2009-11-12 5:03 ` Artem Bityutskiy 2009-11-12 5:10 ` Stephen Rothwell 0 siblings, 2 replies; 32+ messages in thread From: Tony Lindgren @ 2009-11-11 18:42 UTC (permalink / raw) To: Tomi Valkeinen Cc: Stephen Rothwell, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091111 01:43]: > On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) > wrote: > > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > > Tomi, > > > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > > linux-next, because you are going to merge it the next merge window, and > > > there does not seem to be any blocker for this. > > > > > > Being in linux-next for a while is really important. > > > > Stephen, would this be possible? DSS2 driver is rather big piece of > > code, even if it's quite isolated, so it would be nice to have it in > > linux-next. > > > > What does it require from me? A git tree, obviously, but what should it > > be based on? > > Ah, I just realized that DSS2 patches depend on patches from Tony's > tree. I guess I should base my tree on top of some Tony's tree that is > going to linux-next? Or I can merge them into my for-next if that's OK with everybody. This merge cycle is a pain for omap as we've moved all the common headers from include/mach to include/plat. Tomi should still send a separate pull request for Linus for the DSS2 patches. Regards, Tony ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-11 18:42 ` Tony Lindgren @ 2009-11-12 5:03 ` Artem Bityutskiy 2009-11-12 18:08 ` Tony Lindgren 2009-11-12 5:10 ` Stephen Rothwell 1 sibling, 1 reply; 32+ messages in thread From: Artem Bityutskiy @ 2009-11-12 5:03 UTC (permalink / raw) To: Tony Lindgren Cc: Tomi Valkeinen, Stephen Rothwell, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net On Wed, 2009-11-11 at 10:42 -0800, Tony Lindgren wrote: > * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091111 01:43]: > > On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) > > wrote: > > > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > > > Tomi, > > > > > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > > > linux-next, because you are going to merge it the next merge window, and > > > > there does not seem to be any blocker for this. > > > > > > > > Being in linux-next for a while is really important. > > > > > > Stephen, would this be possible? DSS2 driver is rather big piece of > > > code, even if it's quite isolated, so it would be nice to have it in > > > linux-next. > > > > > > What does it require from me? A git tree, obviously, but what should it > > > be based on? > > > > Ah, I just realized that DSS2 patches depend on patches from Tony's > > tree. I guess I should base my tree on top of some Tony's tree that is > > going to linux-next? > > Or I can merge them into my for-next if that's OK with everybody. This > merge cycle is a pain for omap as we've moved all the common headers from > include/mach to include/plat. I thought everything stable which you are going to merge next merge window should be in the next branch by default. Especially these massive re-names which potentially may break many things, right? -- Best Regards, Artem Bityutskiy (Артём Битюцкий) ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-12 5:03 ` Artem Bityutskiy @ 2009-11-12 18:08 ` Tony Lindgren 0 siblings, 0 replies; 32+ messages in thread From: Tony Lindgren @ 2009-11-12 18:08 UTC (permalink / raw) To: Artem Bityutskiy Cc: Tomi Valkeinen, Stephen Rothwell, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net * Artem Bityutskiy <dedekind1@gmail.com> [091111 21:05]: > On Wed, 2009-11-11 at 10:42 -0800, Tony Lindgren wrote: > > * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091111 01:43]: > > > On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) > > > wrote: > > > > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > > > > Tomi, > > > > > > > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > > > > linux-next, because you are going to merge it the next merge window, and > > > > > there does not seem to be any blocker for this. > > > > > > > > > > Being in linux-next for a while is really important. > > > > > > > > Stephen, would this be possible? DSS2 driver is rather big piece of > > > > code, even if it's quite isolated, so it would be nice to have it in > > > > linux-next. > > > > > > > > What does it require from me? A git tree, obviously, but what should it > > > > be based on? > > > > > > Ah, I just realized that DSS2 patches depend on patches from Tony's > > > tree. I guess I should base my tree on top of some Tony's tree that is > > > going to linux-next? > > > > Or I can merge them into my for-next if that's OK with everybody. This > > merge cycle is a pain for omap as we've moved all the common headers from > > include/mach to include/plat. > > I thought everything stable which you are going to merge next merge > window should be in the next branch by default. Especially these massive > re-names which potentially may break many things, right? Yes, the renames are already there. Tony ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-11 18:42 ` Tony Lindgren 2009-11-12 5:03 ` Artem Bityutskiy @ 2009-11-12 5:10 ` Stephen Rothwell 2009-11-12 18:14 ` Tony Lindgren 1 sibling, 1 reply; 32+ messages in thread From: Stephen Rothwell @ 2009-11-12 5:10 UTC (permalink / raw) To: Tony Lindgren Cc: Tomi Valkeinen, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com [-- Attachment #1: Type: text/plain, Size: 1485 bytes --] Hi Tony, On Wed, 11 Nov 2009 10:42:09 -0800 Tony Lindgren <tony@atomide.com> wrote: > > * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091111 01:43]: > > On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) > > wrote: > > > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > > > > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > > > linux-next, because you are going to merge it the next merge window, and > > > > there does not seem to be any blocker for this. > > > > > > > > Being in linux-next for a while is really important. > > > > > > Stephen, would this be possible? DSS2 driver is rather big piece of > > > code, even if it's quite isolated, so it would be nice to have it in > > > linux-next. > > > > > > What does it require from me? A git tree, obviously, but what should it > > > be based on? > > > > Ah, I just realized that DSS2 patches depend on patches from Tony's > > tree. I guess I should base my tree on top of some Tony's tree that is > > going to linux-next? > > Or I can merge them into my for-next if that's OK with everybody. This > merge cycle is a pain for omap as we've moved all the common headers from > include/mach to include/plat. If the DSS2 patches really are dependent on other stuff in the omap tree, then this is probably the best plan. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ [-- Attachment #2: Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-12 5:10 ` Stephen Rothwell @ 2009-11-12 18:14 ` Tony Lindgren 2009-11-12 20:48 ` Stephen Rothwell 0 siblings, 1 reply; 32+ messages in thread From: Tony Lindgren @ 2009-11-12 18:14 UTC (permalink / raw) To: Stephen Rothwell Cc: Tomi Valkeinen, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com * Stephen Rothwell <sfr@canb.auug.org.au> [091111 21:10]: > Hi Tony, > > On Wed, 11 Nov 2009 10:42:09 -0800 Tony Lindgren <tony@atomide.com> wrote: > > > > * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091111 01:43]: > > > On Wed, 2009-11-11 at 09:45 +0100, Valkeinen Tomi (Nokia-D/Helsinki) > > > wrote: > > > > On Tue, 2009-11-10 at 13:40 +0100, Artem Bityutskiy wrote: > > > > > > > > > > could you please kindly ask Stephen (CCed) to include the DSS2 tree into > > > > > linux-next, because you are going to merge it the next merge window, and > > > > > there does not seem to be any blocker for this. > > > > > > > > > > Being in linux-next for a while is really important. > > > > > > > > Stephen, would this be possible? DSS2 driver is rather big piece of > > > > code, even if it's quite isolated, so it would be nice to have it in > > > > linux-next. > > > > > > > > What does it require from me? A git tree, obviously, but what should it > > > > be based on? > > > > > > Ah, I just realized that DSS2 patches depend on patches from Tony's > > > tree. I guess I should base my tree on top of some Tony's tree that is > > > going to linux-next? > > > > Or I can merge them into my for-next if that's OK with everybody. This > > merge cycle is a pain for omap as we've moved all the common headers from > > include/mach to include/plat. > > If the DSS2 patches really are dependent on other stuff in the omap tree, > then this is probably the best plan. OK. The only dependency is the the move of the headers. Tomi, can you please rebase your patches on top of the "7xx-iosplit-plat-merge" branch in linux-omap tree? This is commit 8171d88089ad63fc442b2bf32af7c18653adc5cb, and it should stay static. Please don't rebase on the for-next branch in linux-omap tree, that's still changing. Regards, Tony ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-12 18:14 ` Tony Lindgren @ 2009-11-12 20:48 ` Stephen Rothwell 2009-11-13 9:56 ` Tomi Valkeinen 0 siblings, 1 reply; 32+ messages in thread From: Stephen Rothwell @ 2009-11-12 20:48 UTC (permalink / raw) To: Tony Lindgren Cc: Tomi Valkeinen, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com [-- Attachment #1: Type: text/plain, Size: 783 bytes --] Hi Tony, Tomi, On Thu, 12 Nov 2009 10:14:57 -0800 Tony Lindgren <tony@atomide.com> wrote: > > OK. The only dependency is the the move of the headers. > > Tomi, can you please rebase your patches on top of the "7xx-iosplit-plat-merge" > branch in linux-omap tree? This is commit 8171d88089ad63fc442b2bf32af7c18653adc5cb, > and it should stay static. OK, *if* you (Tony) guarantee that the base is stable (i.e. never rebased, but may have things added to it) and in linux-next, then I can take the DSS2 stuff separately if you want me to. Tomi, you can, of course, merge that branch into your tree instead of rebasing on top of it (which ever is easiest). -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ [-- Attachment #2: Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-12 20:48 ` Stephen Rothwell @ 2009-11-13 9:56 ` Tomi Valkeinen 2009-11-13 17:59 ` Tony Lindgren 0 siblings, 1 reply; 32+ messages in thread From: Tomi Valkeinen @ 2009-11-13 9:56 UTC (permalink / raw) To: ext Stephen Rothwell Cc: Tony Lindgren, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com Hi, On Thu, 2009-11-12 at 21:48 +0100, ext Stephen Rothwell wrote: > Hi Tony, Tomi, > > On Thu, 12 Nov 2009 10:14:57 -0800 Tony Lindgren <tony@atomide.com> wrote: > > > > OK. The only dependency is the the move of the headers. > > > > Tomi, can you please rebase your patches on top of the "7xx-iosplit-plat-merge" > > branch in linux-omap tree? This is commit 8171d88089ad63fc442b2bf32af7c18653adc5cb, > > and it should stay static. > > OK, *if* you (Tony) guarantee that the base is stable (i.e. never > rebased, but may have things added to it) and in linux-next, then I can > take the DSS2 stuff separately if you want me to. > > Tomi, you can, of course, merge that branch into your tree instead of > rebasing on top of it (which ever is easiest). I rebased DSS2 on top of 8171d88089ad63fc442b2bf32af7c18653adc5cb. It can be found from git://gitorious.org/linux-omap-dss2/linux.git for-next branch. I'm ok with Tony pulling DSS2 to his next-branch, or Stephen pulling directly, which ever works easier for you. Tomi ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-13 9:56 ` Tomi Valkeinen @ 2009-11-13 17:59 ` Tony Lindgren 2009-11-15 22:38 ` Stephen Rothwell 0 siblings, 1 reply; 32+ messages in thread From: Tony Lindgren @ 2009-11-13 17:59 UTC (permalink / raw) To: Tomi Valkeinen Cc: ext Stephen Rothwell, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com * Tomi Valkeinen <tomi.valkeinen@nokia.com> [091113 01:55]: > Hi, > > On Thu, 2009-11-12 at 21:48 +0100, ext Stephen Rothwell wrote: > > Hi Tony, Tomi, > > > > On Thu, 12 Nov 2009 10:14:57 -0800 Tony Lindgren <tony@atomide.com> wrote: > > > > > > OK. The only dependency is the the move of the headers. > > > > > > Tomi, can you please rebase your patches on top of the "7xx-iosplit-plat-merge" > > > branch in linux-omap tree? This is commit 8171d88089ad63fc442b2bf32af7c18653adc5cb, > > > and it should stay static. > > > > OK, *if* you (Tony) guarantee that the base is stable (i.e. never > > rebased, but may have things added to it) and in linux-next, then I can > > take the DSS2 stuff separately if you want me to. Thanks. Yes, there should not be any need to rebase that commit. > > Tomi, you can, of course, merge that branch into your tree instead of > > rebasing on top of it (which ever is easiest). > > I rebased DSS2 on top of 8171d88089ad63fc442b2bf32af7c18653adc5cb. It > can be found from git://gitorious.org/linux-omap-dss2/linux.git for-next > branch. > > I'm ok with Tony pulling DSS2 to his next-branch, or Stephen pulling > directly, which ever works easier for you. I'd rather see Stephen pulling directly from Tomi, that's a good long term solution for maintaining the DSS2 code. Regards, Tony ^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: [PATCH 00/19] OMAP: DSS2 v5 intro 2009-11-13 17:59 ` Tony Lindgren @ 2009-11-15 22:38 ` Stephen Rothwell 0 siblings, 0 replies; 32+ messages in thread From: Stephen Rothwell @ 2009-11-15 22:38 UTC (permalink / raw) To: Tomi Valkeinen Cc: Tony Lindgren, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net, dedekind1@gmail.com [-- Attachment #1: Type: text/plain, Size: 2138 bytes --] Tomi, On Fri, 13 Nov 2009 09:59:28 -0800 Tony Lindgren <tony@atomide.com> wrote: > > > I rebased DSS2 on top of 8171d88089ad63fc442b2bf32af7c18653adc5cb. It > > can be found from git://gitorious.org/linux-omap-dss2/linux.git for-next > > branch. > > > > I'm ok with Tony pulling DSS2 to his next-branch, or Stephen pulling > > directly, which ever works easier for you. > > I'd rather see Stephen pulling directly from Tomi, that's a good long > term solution for maintaining the DSS2 code. OK, I have added that branch to linux-next from today. Thanks for all the efforts. Thanks for adding your subsystem tree as a participant of linux-next. As you may know, this is not a judgment of your code. The purpose of linux-next is for integration testing and to lower the impact of conflicts between subsystems in the next merge window. You will need to ensure that the patches/commits in your tree/series have been: * submitted under GPL v2 (or later) and include the Contributor's Signed-off-by, * posted to the relevant mailing list, * reviewed by you (or another maintainer of your subsystem tree), * successfully unit tested, and * destined for the current or next Linux merge window. Basically, this should be just what you would send to Linus (or ask him to fetch). It is allowed to be rebased if you deem it necessary. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au Legal Stuff: By participating in linux-next, your subsystem tree contributions are public and will be included in the linux-next trees. You may be sent e-mail messages indicating errors or other issues when the patches/commits from your subsystem tree are merged and tested in linux-next. These messages may also be cross-posted to the linux-next mailing list, the linux-kernel mailing list, etc. The linux-next tree project and IBM (my employer) make no warranties regarding the linux-next project, the testing procedures, the results, the e-mails, etc. If you don't agree to these ground rules, let me know and I'll remove your tree from participation in linux-next. [-- Attachment #2: Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 32+ messages in thread
end of thread, other threads:[~2009-11-15 22:38 UTC | newest] Thread overview: 32+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2009-11-09 11:45 [PATCH 00/19] OMAP: DSS2 v5 intro Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 01/19] OMAP2: Add funcs for writing SMS_ROT_* registers Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 02/19] OMAP: OMAPFB: split omapfb.h Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 03/19] OMAP: OMAPFB: add omapdss device Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 04/19] OMAP: Add VRAM manager Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 05/19] OMAP: Add support for VRFB rotation engine Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 06/19] OMAP: DSS2: Documentation for DSS2 Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 07/19] OMAP: DSS2: Display Subsystem Driver core Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 08/19] OMAP: DSS2: Add more core files Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 09/19] OMAP: DSS2: DISPC Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 10/19] OMAP: DSS2: DPI driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 11/19] OMAP: DSS2: Video encoder driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 12/19] OMAP: DSS2: RFBI driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 13/19] OMAP: DSS2: SDI driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 14/19] OMAP: DSS2: DSI driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 15/19] OMAP: DSS2: omapfb driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 16/19] OMAP: DSS2: Add DPI panel drivers Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 17/19] OMAP: DSS2: Taal DSI command mode panel driver Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 18/19] OMAP: SDP: Enable DSS2 for OMAP3 SDP board Tomi Valkeinen 2009-11-09 11:45 ` [PATCH 19/19] MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer Tomi Valkeinen 2009-11-10 12:40 ` [PATCH 00/19] OMAP: DSS2 v5 intro Artem Bityutskiy 2009-11-11 8:45 ` Tomi Valkeinen 2009-11-11 9:44 ` Tomi Valkeinen 2009-11-11 18:42 ` Tony Lindgren 2009-11-12 5:03 ` Artem Bityutskiy 2009-11-12 18:08 ` Tony Lindgren 2009-11-12 5:10 ` Stephen Rothwell 2009-11-12 18:14 ` Tony Lindgren 2009-11-12 20:48 ` Stephen Rothwell 2009-11-13 9:56 ` Tomi Valkeinen 2009-11-13 17:59 ` Tony Lindgren 2009-11-15 22:38 ` Stephen Rothwell
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