* Propose removal of the PLANB driver
@ 2008-07-08 15:50 Hans Verkuil
2008-07-09 10:00 ` Adrian Bunk
0 siblings, 1 reply; 6+ messages in thread
From: Hans Verkuil @ 2008-07-08 15:50 UTC (permalink / raw)
To: v4l; +Cc: Mauro Carvalho Chehab
Hi all,
The PlanB driver ("PlanB Video-In on PowerMac") has been marked as
broken for ages. No one seems to care about it. I propose to mark this
driver for removal in 2.6.28 as well.
Comments?
Hans
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Propose removal of the PLANB driver 2008-07-08 15:50 Propose removal of the PLANB driver Hans Verkuil @ 2008-07-09 10:00 ` Adrian Bunk [not found] ` <1215634133.8970.379.camel@pasglop> 0 siblings, 1 reply; 6+ messages in thread From: Adrian Bunk @ 2008-07-09 10:00 UTC (permalink / raw) To: Hans Verkuil; +Cc: Benjamin Herrenschmidt, v4l, Mauro Carvalho Chehab On Tue, Jul 08, 2008 at 05:50:39PM +0200, Hans Verkuil wrote: > Hi all, > > The PlanB driver ("PlanB Video-In on PowerMac") has been marked as > broken for ages. No one seems to care about it. I propose to mark this > driver for removal in 2.6.28 as well. It's broken for ages, and if there's agreement about the removal there's no need to wait for 2.6.28. > Comments? When I proposed removing removing it last year Benjamin Herrenschmidt (Cc'ed) said he'll have a look. [1] Benjamin? > Hans cu Adrian [1] http://lkml.org/lkml/2007/1/4/265 -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <1215634133.8970.379.camel@pasglop>]
* [2.6 patch] remove the broken planb driver [not found] ` <1215634133.8970.379.camel@pasglop> @ 2008-07-14 20:45 ` Adrian Bunk 2008-07-14 21:51 ` Hans Verkuil 2008-07-14 22:05 ` Mich Lanners 0 siblings, 2 replies; 6+ messages in thread From: Adrian Bunk @ 2008-07-14 20:45 UTC (permalink / raw) To: Benjamin Herrenschmidt; +Cc: v4l, mlan, Mauro Carvalho Chehab On Thu, Jul 10, 2008 at 06:08:53AM +1000, Benjamin Herrenschmidt wrote: > On Wed, 2008-07-09 at 13:00 +0300, Adrian Bunk wrote: > > On Tue, Jul 08, 2008 at 05:50:39PM +0200, Hans Verkuil wrote: > > > Hi all, > > > > > > The PlanB driver ("PlanB Video-In on PowerMac") has been marked as > > > broken for ages. No one seems to care about it. I propose to mark this > > > driver for removal in 2.6.28 as well. > > > > It's broken for ages, and if there's agreement about the removal there's > > no need to wait for 2.6.28. > > > > > Comments? > > > > When I proposed removing removing it last year Benjamin Herrenschmidt > > (Cc'ed) said he'll have a look. [1] > > > > Benjamin? > > Hrm... I hate removing things ;-) I love removing things... ;-) > Oh well, I suppose you can. I never found time to look into it, > but I still -do- have a machine somewhere with that HW (though whether > it still boots is to be verified). > > Remove it for now, It's broken anyway. I can always re-submit it if I > ever fix it. Thanks, patch below. > Cheers, > Ben. cu Adrian <-- snip --> This patch removes the planb driver that had a dependency on BROKEN since May 2004. Signed-off-by: Adrian Bunk <bunk@kernel.org> --- drivers/media/video/Kconfig | 11 drivers/media/video/Makefile | 1 drivers/media/video/planb.c | 2309 ----------------------------------- drivers/media/video/planb.h | 232 --- 4 files changed, 2553 deletions(-) e8ab9440efddeb9348c036db51d8f7254005c3ad diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 5ccb0ae..8e362e4 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -474,17 +474,6 @@ config VIDEO_PMS To compile this driver as a module, choose M here: the module will be called pms. -config VIDEO_PLANB - tristate "PlanB Video-In on PowerMac" - depends on PPC_PMAC && VIDEO_V4L1 && BROKEN - help - PlanB is the V4L driver for the PowerMac 7x00/8x00 series video - input hardware. If you want to experiment with this, say Y. - Otherwise, or if you don't understand a word, say N. See - <http://www.cpu.lu/~mlan/linux/dev/planb.html> for more info. - - Saying M will compile this driver as a module (planb). - config VIDEO_BWQCAM tristate "Quickcam BW Video For Linux" depends on PARPORT && VIDEO_V4L1 diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index ecbbfaa..6805468 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -55,7 +55,6 @@ obj-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o zr36016.o obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o obj-$(CONFIG_VIDEO_PMS) += pms.o -obj-$(CONFIG_VIDEO_PLANB) += planb.o obj-$(CONFIG_VIDEO_VINO) += vino.o indycam.o obj-$(CONFIG_VIDEO_STRADIS) += stradis.o obj-$(CONFIG_VIDEO_CPIA) += cpia.o diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c deleted file mode 100644 index 36047d4..0000000 --- a/drivers/media/video/planb.c +++ /dev/null @@ -1,2309 +0,0 @@ -/* - planb - PlanB frame grabber driver - - PlanB is used in the 7x00/8x00 series of PowerMacintosh - Computers as video input DMA controller. - - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) - - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) - - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ - -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/major.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/vmalloc.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/videodev.h> -#include <media/v4l2-common.h> -#include <linux/wait.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/dbdma.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/irq.h> -#include <linux/mutex.h> - -#include "planb.h" -#include "saa7196.h" - -/* Would you mind for some ugly debugging? */ -#if 0 -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ -#else -#define DEBUG(x...) /* Don't debug driver */ -#endif - -#if 0 -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part */ -#else -#define IDEBUG(x...) /* Don't debug interrupt part */ -#endif - -/* Ever seen a Mac with more than 1 of these? */ -#define PLANB_MAX 1 - -static int planb_num; -static struct planb planbs[PLANB_MAX]; -static volatile struct planb_registers *planb_regs; - -static int def_norm = PLANB_DEF_NORM; /* default norm */ -static int video_nr = -1; - -module_param(def_norm, int, 0); -MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)"); -module_param(video_nr, int, 0); -MODULE_LICENSE("GPL"); - - -/* ------------------ PlanB Exported Functions ------------------ */ -static long planb_write(struct video_device *, const char *, unsigned long, int); -static long planb_read(struct video_device *, char *, unsigned long, int); -static int planb_open(struct video_device *, int); -static void planb_close(struct video_device *); -static int planb_ioctl(struct video_device *, unsigned int, void *); -static int planb_init_done(struct video_device *); -static int planb_mmap(struct video_device *, const char *, unsigned long); -static void release_planb(void); -int init_planbs(struct video_init *); - -/* ------------------ PlanB Internal Functions ------------------ */ -static int planb_prepare_open(struct planb *); -static void planb_prepare_close(struct planb *); -static void saa_write_reg(unsigned char, unsigned char); -static unsigned char saa_status(int, struct planb *); -static void saa_set(unsigned char, unsigned char, struct planb *); -static void saa_init_regs(struct planb *); -static int grabbuf_alloc(struct planb *); -static int vgrab(struct planb *, struct video_mmap *); -static void add_clip(struct planb *, struct video_clip *); -static void fill_cmd_buff(struct planb *); -static void cmd_buff(struct planb *); -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb *); -static void overlay_start(struct planb *); -static void overlay_stop(struct planb *); -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, unsigned short, - unsigned int); -static inline void tab_cmd_store(volatile struct dbdma_cmd *, unsigned int, - unsigned int); -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned short, - unsigned short, unsigned int, unsigned int); -static int init_planb(struct planb *); -static int find_planb(void); -static void planb_pre_capture(int, int, struct planb *); -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct dbdma_cmd *, - int, int, int, int, int, struct planb *); -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); -static unsigned int saa_geo_setup(int, int, int, int, struct planb *); -static inline int overlay_is_active(struct planb *); - -/*******************************/ -/* Memory management functions */ -/*******************************/ - -static int grabbuf_alloc(struct planb *pb) -{ - int i, npage; - - npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1) -#ifndef PLANB_GSCANLINE - + MAX_LNUM -#endif /* PLANB_GSCANLINE */ - ); - if ((pb->rawbuf = kmalloc(npage - * sizeof(unsigned long), GFP_KERNEL)) == 0) - return -ENOMEM; - for (i = 0; i < npage; i++) { - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL - |GFP_DMA, 0); - if (!pb->rawbuf[i]) - break; - SetPageReserved(virt_to_page(pb->rawbuf[i])); - } - if (i-- < npage) { - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not allocated\n"); - for (; i > 0; i--) { - ClearPageReserved(virt_to_page(pb->rawbuf[i])); - free_pages((unsigned long)pb->rawbuf[i], 0); - } - kfree(pb->rawbuf); - return -ENOBUFS; - } - pb->rawbuf_size = npage; - return 0; -} - -/*****************************/ -/* Hardware access functions */ -/*****************************/ - -static void saa_write_reg(unsigned char addr, unsigned char val) -{ - planb_regs->saa_addr = addr; eieio(); - planb_regs->saa_regval = val; eieio(); - return; -} - -/* return status byte 0 or 1: */ -static unsigned char saa_status(int byte, struct planb *pb) -{ - saa_regs[pb->win.norm][SAA7196_STDC] = - (saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1); - saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]); - - /* Let's wait 30msec for this one */ - msleep_interruptible(30); - - return (unsigned char)in_8 (&planb_regs->saa_status); -} - -static void saa_set(unsigned char addr, unsigned char val, struct planb *pb) -{ - if(saa_regs[pb->win.norm][addr] != val) { - saa_regs[pb->win.norm][addr] = val; - saa_write_reg (addr, val); - } - return; -} - -static void saa_init_regs(struct planb *pb) -{ - int i; - - for (i = 0; i < SAA7196_NUMREGS; i++) - saa_write_reg (i, saa_regs[pb->win.norm][i]); -} - -static unsigned int saa_geo_setup(int width, int height, int interlace, int bpp, - struct planb *pb) -{ - int ht, norm = pb->win.norm; - - switch(bpp) { - case 2: - /* RGB555+a 1x16-bit + 16-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x3; - break; - case 1: - case 4: - /* RGB888 1x24-bit + 8-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x1; - saa_regs[norm][SAA7196_FMTS] |= 0x2; - break; - default: - return -EINVAL; - } - ht = (interlace ? height / 2 : height); - saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); - saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3) - | (width >> 8 & 0x3); - saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff); - saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3) - | (ht >> 8 & 0x3); - /* feed both fields if interlaced, or else feed only even fields */ - saa_regs[norm][SAA7196_FMTS] = (interlace) ? - (saa_regs[norm][SAA7196_FMTS] & ~0x60) - : (saa_regs[norm][SAA7196_FMTS] | 0x60); - /* transparent mode; extended format enabled */ - saa_regs[norm][SAA7196_DPATH] |= 0x3; - - return 0; -} - -/***************************/ -/* DBDMA support functions */ -/***************************/ - -static inline void planb_dbdma_restart(volatile struct dbdma_regs *ch) -{ - out_le32(&ch->control, PLANB_CLR(RUN)); - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); -} - -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) -{ - int i = 0; - - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { - IDEBUG("PlanB: waiting for DMA to stop\n"); - i++; - } -} - -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned int cmd_dep) -{ - st_le16(&ch->command, command); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, - unsigned int phy_addr, unsigned int cmd_dep) -{ - st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); - st_le16(&ch->req_count, 4); - st_le32(&ch->phy_addr, phy_addr); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned short req_count, - unsigned int phy_addr, unsigned int cmd_dep) -{ - st_le16(&ch->command, command); - st_le16(&ch->req_count, req_count); - st_le32(&ch->phy_addr, phy_addr); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static volatile struct dbdma_cmd *cmd_geo_setup( - volatile struct dbdma_cmd *c1, int width, int height, int interlace, - int bpp, int clip, struct planb *pb) -{ - int norm = pb->win.norm; - - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) - return (volatile struct dbdma_cmd *)NULL; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_FMTS); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_FMTS]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_DPATH); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_DPATH]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_OUTPIX); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_OUTPIX]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_HFILT); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_HFILT]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_OUTLINE); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_OUTLINE]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_VYP); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_VYP]); - return c1; -} - -/******************************/ -/* misc. supporting functions */ -/******************************/ - -static inline void planb_lock(struct planb *pb) -{ - mutex_lock(&pb->lock); -} - -static inline void planb_unlock(struct planb *pb) -{ - mutex_unlock(&pb->lock); -} - -/***************/ -/* Driver Core */ -/***************/ - -static int planb_prepare_open(struct planb *pb) -{ - int i, size; - - /* allocate memory for two plus alpha command buffers (size: max lines, - plus 40 commands handling, plus 1 alignment), plus dummy command buf, - plus clipmask buffer, plus frame grabbing status */ - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 - +MAX_GBUFFERS*sizeof(unsigned int); - if ((pb->priv_space = kzalloc (size, GFP_KERNEL)) == 0) - return -ENOMEM; - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) - DBDMA_ALIGN (pb->priv_space); - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; - for (i = 1; i < MAX_GBUFFERS; i++) { - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; - } - pb->frame_stat=(volatile unsigned int *)(pb->pre_cmd[MAX_GBUFFERS-1] - + PLANB_DUMMY); - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); - - pb->rawbuf = NULL; - pb->rawbuf_size = 0; - pb->grabbing = 0; - for (i = 0; i < MAX_GBUFFERS; i++) { - pb->frame_stat[i] = GBUFFER_UNUSED; - pb->gwidth[i] = 0; - pb->gheight[i] = 0; - pb->gfmt[i] = 0; - pb->gnorm_switch[i] = 0; -#ifndef PLANB_GSCANLINE - pb->lsize[i] = 0; - pb->lnum[i] = 0; -#endif /* PLANB_GSCANLINE */ - } - pb->gcount = 0; - pb->suspend = 0; - pb->last_fr = -999; - pb->prev_last_fr = -999; - - /* Reset DMA controllers */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - return 0; -} - -static void planb_prepare_close(struct planb *pb) -{ - int i; - - /* make sure the dma's are idle */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - /* free kernel memory of command buffers */ - if(pb->priv_space != 0) { - kfree (pb->priv_space); - pb->priv_space = 0; - pb->cmd_buff_inited = 0; - } - if(pb->rawbuf) { - for (i = 0; i < pb->rawbuf_size; i++) { - ClearPageReserved(virt_to_page(pb->rawbuf[i])); - free_pages((unsigned long)pb->rawbuf[i], 0); - } - kfree(pb->rawbuf); - } - pb->rawbuf = NULL; -} - -/*****************************/ -/* overlay support functions */ -/*****************************/ - -static inline int overlay_is_active(struct planb *pb) -{ - unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); - unsigned int caddr = (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); - - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) - && (caddr < (pb->ch1_cmd_phys + size)) - && (caddr >= (unsigned)pb->ch1_cmd_phys); -} - -static void overlay_start(struct planb *pb) -{ - - DEBUG("PlanB: overlay_start()\n"); - - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - - DEBUG("PlanB: presumably, grabbing is in progress...\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - out_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); - planb_dbdma_restart(&pb->planb_base->ch2); - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - eieio(); - pb->prev_last_fr = pb->last_fr; - pb->last_fr = -2; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - IDEBUG("PlanB: became inactive " - "in the mean time... reactivating\n"); - planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } else { - - DEBUG("PlanB: currently idle, so can do whatever\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - st_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); - st_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - planb_dbdma_restart(&pb->planb_base->ch2); - planb_dbdma_restart(&pb->planb_base->ch1); - pb->last_fr = -1; - } - return; -} - -static void overlay_stop(struct planb *pb) -{ - DEBUG("PlanB: overlay_stop()\n"); - - if(pb->last_fr == -1) { - - DEBUG("PlanB: no grabbing, it seems...\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->last_fr = -999; - } else if(pb->last_fr == -2) { - unsigned int cmd_dep; - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); - eieio(); - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); - if(overlay_is_active(pb)) { - - DEBUG("PlanB: overlay is currently active\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - if(cmd_dep != pb->ch1_cmd_phys) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } - pb->last_fr = pb->prev_last_fr; - pb->prev_last_fr = -999; - } - return; -} - -static void suspend_overlay(struct planb *pb) -{ - int fr = -1; - struct dbdma_cmd last; - - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); - - if(pb->suspend++) - return; - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - if(pb->last_fr == -2) { - fr = pb->prev_last_fr; - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - } - if(overlay_is_active(pb)) { - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->suspended.overlay = 1; - pb->suspended.frame = fr; - memcpy(&pb->suspended.cmd, &last, sizeof(last)); - return; - } - } - pb->suspended.overlay = 0; - pb->suspended.frame = fr; - memcpy(&pb->suspended.cmd, &last, sizeof(last)); - return; -} - -static void resume_overlay(struct planb *pb) -{ - - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); - - if(pb->suspend > 1) - return; - if(pb->suspended.frame != -1) { - memcpy((void*)pb->last_cmd[pb->suspended.frame], - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); - } - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - goto finish; - } - if(pb->suspended.overlay) { - - DEBUG("PlanB: overlay being resumed\n"); - - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); - /* Set command buffer addresses */ - st_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); - out_le32(&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->overlay_last2)); - /* Start the DMA controller */ - out_le32 (&pb->planb_base->ch2.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - } else if(pb->suspended.frame != -1) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->last_cmd[pb->suspended.frame])); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - } - -finish: - pb->suspend--; - wake_up_interruptible(&pb->suspendq); -} - -static void add_clip(struct planb *pb, struct video_clip *clip) -{ - volatile unsigned char *base; - int xc = clip->x, yc = clip->y; - int wc = clip->width, hc = clip->height; - int ww = pb->win.width, hw = pb->win.height; - int x, y, xtmp1, xtmp2; - - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); - - if(xc < 0) { - wc += xc; - xc = 0; - } - if(yc < 0) { - hc += yc; - yc = 0; - } - if(xc + wc > ww) - wc = ww - xc; - if(wc <= 0) /* Nothing to do */ - return; - if(yc + hc > hw) - hc = hw - yc; - - for (y = yc; y < yc+hc; y++) { - xtmp1=xc>>3; - xtmp2=(xc+wc)>>3; - base = pb->mask + y*96; - if(xc != 0 || wc >= 8) - *(base + xtmp1) &= (unsigned char)(0x00ff & - (0xff00 >> (xc&7))); - for (x = xtmp1 + 1; x < xtmp2; x++) { - *(base + x) = 0; - } - if(xc < (ww & ~0x7)) - *(base + xtmp2) &= (unsigned char)(0x00ff >> - ((xc+wc) & 7)); - } - - return; -} - -static void fill_cmd_buff(struct planb *pb) -{ - int restore = 0; - volatile struct dbdma_cmd last; - - DEBUG("PlanB: fill_cmd_buff()\n"); - - if(pb->overlay_last1 != pb->ch1_cmd) { - restore = 1; - last = *(pb->overlay_last1); - } - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size - * sizeof(struct dbdma_cmd)); - cmd_buff (pb); - if(restore) - *(pb->overlay_last1) = last; - if(pb->suspended.overlay) { - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); - if(jump_addr != pb->ch1_cmd_phys) { - int i; - - DEBUG("PlanB: adjusting ch1's jump address\n"); - - for(i = 0; i < MAX_GBUFFERS; i++) { - if(pb->need_pre_capture[i]) { - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) - goto found; - } else { - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) - goto found; - } - } - - DEBUG("PlanB: not found...\n"); - - goto out; -found: - if(pb->need_pre_capture[i]) - out_le32(&pb->pre_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); - else - out_le32(&pb->cap_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); - } - } -out: - pb->cmd_buff_inited = 1; - - return; -} - -static void cmd_buff(struct planb *pb) -{ - int i, bpp, count, nlines, stepsize, interlace; - unsigned long base, jump, addr_com, addr_dep; - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; - - interlace = pb->win.interlace; - bpp = pb->win.bpp; - count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ? - (pb->win.swidth - pb->win.x) : pb->win.width)); - nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ? - (pb->win.sheight - pb->win.y) : pb->win.height); - - /* Do video in: */ - - /* Preamble commands: */ - addr_com = virt_to_bus(c1); - addr_dep = virt_to_bus(&c1->cmd_dep); - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */ - if((c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, - bpp, 1, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); - return; - } - tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16); - tab_cmd_store(c1++, addr_dep, jump); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - /* (1) wait for field sync to be set */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - /* wait for field sync to be cleared */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - /* if not odd field, wait until field sync is set again */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * (pb->win.bpl - + pb->win.pad) + pb->win.x * bpp); - - if (interlace) { - stepsize = 2; - jump = virt_to_bus(c1 + (nlines + 1) / 2); - } else { - stepsize = 1; - jump = virt_to_bus(c1 + nlines); - } - - /* even field data: */ - for (i=0; i < nlines; i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, - count, base + i * (pb->win.bpl + pb->win.pad), jump); - - /* For non-interlaced, we use even fields only */ - if (!interlace) - goto cmd_tab_data_end; - - /* Resync to odd field */ - /* (2) wait for field sync to be set */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - /* wait for field sync to be cleared */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - /* if not odd field, wait until field sync is set again */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - /* odd field data: */ - jump = virt_to_bus(c1 + nlines / 2); - for (i=1; i < nlines; i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + i * (pb->win.bpl + pb->win.pad), jump); - - /* And jump back to the start */ -cmd_tab_data_end: - pb->overlay_last1 = c1; /* keep a pointer to the last command */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); - - /* Clipmask command buffer */ - - /* Preamble commands: */ - tab_cmd_dbdma(c2++, DBDMA_NOP, 0); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), - PLANB_SET(CH_SYNC)); - /* wait until ch1 asserts ch_sync */ - tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); - /* clear ch_sync asserted by ch1 */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_CLR(CH_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(ODD_FIELD)); - - /* jump to end of even field if appropriate */ - /* this points to (interlace)? pos. C: pos. B */ - jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2): - virt_to_bus(c2 + nlines + 2); - /* if odd field, skip over to odd field clipmasking */ - tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); - - /* even field mask: */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(DMA_ABORT)); - /* this points to pos. B */ - jump = (interlace) ? virt_to_bus(c2 + nlines + 1): - virt_to_bus(c2 + nlines); - base = virt_to_bus(pb->mask); - for (i=0; i < nlines; i += stepsize, c2++) - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, - base + i * 96, jump); - - /* For non-interlaced, we use only even fields */ - if(!interlace) - goto cmd_tab_mask_end; - - /* odd field mask: */ -/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(DMA_ABORT)); - /* this points to pos. B */ - jump = virt_to_bus(c2 + nlines / 2); - base = virt_to_bus(pb->mask); - for (i=1; i < nlines; i += 2, c2++) /* abort if set */ - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, - base + i * 96, jump); - - /* Inform channel 1 and jump back to start */ -cmd_tab_mask_end: - /* ok, I just realized this is kind of flawed. */ - /* this part is reached only after odd field clipmasking. */ - /* wanna clean up? */ - /* wait for field sync to be set */ - /* corresponds to fsync (1) of ch1 */ -/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); - /* restart ch1, meant to clear any dead bit or something */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), - PLANB_CLR(RUN)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), - PLANB_SET(RUN)); - pb->overlay_last2 = c2; /* keep a pointer to the last command */ - /* start over even field clipmasking */ - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); - - eieio(); - return; -} - -/*********************************/ -/* grabdisplay support functions */ -/*********************************/ - -static int palette2fmt[] = { - 0, - PLANB_GRAY, - 0, - 0, - 0, - PLANB_COLOUR32, - PLANB_COLOUR15, - 0, - 0, - 0, - 0, - 0, - 0, - 0, - 0, -}; - -#define PLANB_PALETTE_MAX 15 - -static int vgrab(struct planb *pb, struct video_mmap *mp) -{ - unsigned int fr = mp->frame; - unsigned int format; - - if(pb->rawbuf==NULL) { - int err; - if((err=grabbuf_alloc(pb))) - return err; - } - - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, - mp->width, mp->height, fr); - - if(pb->grabbing >= MAX_GBUFFERS) - return -ENOBUFS; - if(fr > (MAX_GBUFFERS - 1) || fr < 0) - return -EINVAL; - if(mp->height <= 0 || mp->width <= 0) - return -EINVAL; - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) - return -EINVAL; - if((format = palette2fmt[mp->format]) == 0) - return -EINVAL; - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = bpp */ - return -EINVAL; - - planb_lock(pb); - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { - int i; -#ifndef PLANB_GSCANLINE - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] - * pb->gfmt[fr]; - unsigned int nsize = mp->width * mp->height * format; -#endif - - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", - mp->width, mp->height, mp->format); - -#ifndef PLANB_GSCANLINE - if(pb->gnorm_switch[fr]) - nsize = 0; - if (nsize < osize) { - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); - osize -= PAGE_SIZE; - } - } - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] - + pb->lnum[fr]; i++) - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); -#else -/* XXX TODO */ -/* - if(pb->gnorm_switch[fr]) - memset((void *)pb->gbuffer[fr], 0, - pb->gbytes_per_line * pb->gheight[fr]); - else { - if(mp-> - for(i = 0; i < pb->gheight[fr]; i++) { - memset((void *)(pb->gbuffer[fr] - + pb->gbytes_per_line * i - } - } -*/ -#endif - pb->gwidth[fr] = mp->width; - pb->gheight[fr] = mp->height; - pb->gfmt[fr] = format; - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ - pb->need_pre_capture[fr] = 1; - pb->gnorm_switch[fr] = 0; - } else - pb->need_pre_capture[fr] = 0; - pb->frame_stat[fr] = GBUFFER_GRABBING; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); - - planb_dbdma_stop(&pb->planb_base->ch1); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->pre_cmd[fr])); - } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - /* let's be on the safe side. here is not timing critical. */ - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); - } - planb_dbdma_restart(&pb->planb_base->ch1); - pb->last_fr = fr; - } else { - int i; - - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); - - if((pb->last_fr == -1) || ((pb->last_fr == -2) && - overlay_is_active(pb))) { - - IDEBUG("PlanB: overlay is active, grabbing defered\n"); - - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_store(pb->pre_cmd[fr], - virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); - eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->pre_cmd[fr])); - } else { - tab_cmd_store(pb->cap_cmd[fr], - virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->cap_cmd[fr])); - } - for(i = 0; overlay_is_active(pb) && i < 999; i++) - IDEBUG("PlanB: waiting for overlay done\n"); - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); - pb->prev_last_fr = fr; - pb->last_fr = -2; - } else if(pb->last_fr == -2) { - - IDEBUG("PlanB: mixed mode detected, grabbing" - " will be done before activating overlay\n"); - - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); - eieio(); - } else { - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->prev_last_fr] != - pb->gwidth[fr] - || pb->gheight[pb->prev_last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->prev_last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); - eieio(); - } - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - eieio(); - pb->prev_last_fr = fr; - pb->last_fr = -2; - } else { - - IDEBUG("PlanB: active grabbing session detected\n"); - - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); - eieio(); - } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] - || pb->gheight[pb->last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); - eieio(); - } - pb->last_fr = fr; - } - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - - IDEBUG("PlanB: became inactive in the mean time..." - "reactivating\n"); - - planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } - pb->grabbing++; - planb_unlock(pb); - - return 0; -} - -static void planb_pre_capture(int fr, int bpp, struct planb *pb) -{ - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; - - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered some problems\n"); - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); - return; - } - /* Sync to even field */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - /* For non-interlaced, we use even fields only */ - if (pb->gheight[fr] <= pb->maxlines/2) - goto cmd_tab_data_end; - /* Sync to odd field */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); -cmd_tab_data_end: - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->cap_cmd[fr])); - - eieio(); -} - -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct planb *pb) -{ - int i, bpp, count, nlines, stepsize, interlace; -#ifdef PLANB_GSCANLINE - int scanline; -#else - int nlpp, leftover1; - unsigned long base; -#endif - unsigned long jump; - int pagei; - volatile struct dbdma_cmd *c1; - volatile struct dbdma_cmd *jump_addr; - - c1 = pb->cap_cmd[fr]; - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; - bpp = pb->gfmt[fr]; /* gfmt = bpp */ - count = bpp * pb->gwidth[fr]; - nlines = pb->gheight[fr]; -#ifdef PLANB_GSCANLINE - scanline = pb->gbytes_per_line; -#else - pb->lsize[fr] = count; - pb->lnum[fr] = 0; -#endif - - /* Do video in: */ - - /* Preamble commands: */ - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++; - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); - return (pb->cap_cmd[fr] + 2); - } - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - if (interlace) { - stepsize = 2; - jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2; - } else { - stepsize = 1; - jump_addr = c1 + TAB_FACTOR * nlines; - } - jump = virt_to_bus(jump_addr); - - /* even field data: */ - - pagei = pb->gbuf_idx[fr]; -#ifdef PLANB_GSCANLINE - for (i = 0; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pagei - + i * scanline / PAGE_SIZE]), jump); - } -#else - i = 0; - leftover1 = 0; - do { - int j; - - base = virt_to_bus(pb->rawbuf[pagei]); - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, - count, base + count * j * stepsize + leftover1, jump); - if(i < nlines) { - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; - - if(lov0 == 0) - leftover1 = 0; - else { - if(lov0 >= count) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base - + count * nlpp * stepsize + leftover1, jump); - } else { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] - + count * nlpp * stepsize + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; - } - leftover1 = count * stepsize - lov0; - i += stepsize; - } - } - pagei++; - } while(i < nlines); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); - c1 = jump_addr; -#endif /* PLANB_GSCANLINE */ - - /* For non-interlaced, we use even fields only */ - if (!interlace) - goto cmd_tab_data_end; - - /* Sync to odd field */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - /* odd field data: */ - jump_addr = c1 + TAB_FACTOR * nlines / 2; - jump = virt_to_bus(jump_addr); -#ifdef PLANB_GSCANLINE - for (i = 1; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pagei - + i * scanline / PAGE_SIZE]), jump); - } -#else - i = 1; - leftover1 = 0; - pagei = pb->gbuf_idx[fr]; - if(nlines <= 1) - goto skip; - do { - int j; - - base = virt_to_bus(pb->rawbuf[pagei]); - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; - if(leftover1 >= count) { - tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + leftover1 - count, jump); - i += stepsize; - } - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + count * (j * stepsize + 1) + leftover1, jump); - if(i < nlines) { - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; - - if(lov0 == 0) - leftover1 = 0; - else { - if(lov0 > count) { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] - + count * (nlpp * stepsize + 1) + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize - - lov0; - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; - i += stepsize; - } - leftover1 = count * stepsize - lov0; - } - } - pagei++; - } while(i < nlines); -skip: - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); - c1 = jump_addr; -#endif /* PLANB_GSCANLINE */ - -cmd_tab_data_end: - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), - (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); - /* stop it */ - tab_cmd_dbdma(c1, DBDMA_STOP, 0); - - eieio(); - return c1; -} - -static irqreturn_t planb_irq(int irq, void *dev_id) -{ - unsigned int stat, astat; - struct planb *pb = (struct planb *)dev_id; - - IDEBUG("PlanB: planb_irq()\n"); - - /* get/clear interrupt status bits */ - eieio(); - stat = in_le32(&pb->planb_base->intr_stat); - astat = stat & pb->intr_mask; - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ - & ~astat & stat & ~PLANB_GEN_IRQ); - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); - - if(astat & PLANB_FRM_IRQ) { - unsigned int fr = stat >> 9; -#ifndef PLANB_GSCANLINE - int i; -#endif - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); - - pb->gcount++; - - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", - pb->grabbing, fr, pb->gcount); -#ifndef PLANB_GSCANLINE - IDEBUG("PlanB: %d * %d bytes are being copied over\n", - pb->lnum[fr], pb->lsize[fr]); - for(i = 0; i < pb->lnum[fr]; i++) { - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; - - memcpy(pb->l_to_addr[fr][i], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], - first); - memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, - pb->l_to_next_size[fr][i]); - } -#endif - pb->frame_stat[fr] = GBUFFER_DONE; - pb->grabbing--; - wake_up_interruptible(&pb->capq); - return IRQ_HANDLED; - } - /* incorrect interrupts? */ - pb->intr_mask = PLANB_CLR_IRQ; - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" - " unconditionally\n"); - return IRQ_HANDLED; -} - -/******************************* - * Device Operations functions * - *******************************/ - -static int planb_open(struct video_device *dev, int mode) -{ - struct planb *pb = (struct planb *)dev; - - if (pb->user == 0) { - int err; - if((err = planb_prepare_open(pb)) != 0) - return err; - } - pb->user++; - - DEBUG("PlanB: device opened\n"); - return 0; -} - -static void planb_close(struct video_device *dev) -{ - struct planb *pb = (struct planb *)dev; - - if(pb->user < 1) /* ??? */ - return; - planb_lock(pb); - if (pb->user == 1) { - if (pb->overlay) { - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->overlay = 0; - } - planb_prepare_close(pb); - } - pb->user--; - planb_unlock(pb); - - DEBUG("PlanB: device closed\n"); -} - -static long planb_read(struct video_device *v, char *buf, unsigned long count, - int nonblock) -{ - DEBUG("planb: read request\n"); - return -EINVAL; -} - -static long planb_write(struct video_device *v, const char *buf, - unsigned long count, int nonblock) -{ - DEBUG("planb: write request\n"); - return -EINVAL; -} - -static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg) -{ - struct planb *pb=(struct planb *)dev; - - switch (cmd) - { - case VIDIOCGCAP: - { - struct video_capability b; - - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); - - strcpy (b.name, pb->video_dev.name); - b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | - VID_TYPE_FRAMERAM | VID_TYPE_SCALES | - VID_TYPE_CAPTURE; - b.channels = 2; /* composite & svhs */ - b.audios = 0; - b.maxwidth = PLANB_MAXPIXELS; - b.maxheight = PLANB_MAXLINES; - b.minwidth = 32; /* wild guess */ - b.minheight = 32; - if (copy_to_user(arg,&b,sizeof(b))) - return -EFAULT; - return 0; - } - case VIDIOCSFBUF: - { - struct video_buffer v; - unsigned short bpp; - unsigned int fmt; - - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); - - if (!capable(CAP_SYS_ADMIN) - || !capable(CAP_SYS_RAWIO)) - return -EPERM; - if (copy_from_user(&v, arg,sizeof(v))) - return -EFAULT; - planb_lock(pb); - switch(v.depth) { - case 8: - bpp = 1; - fmt = PLANB_GRAY; - break; - case 15: - case 16: - bpp = 2; - fmt = PLANB_COLOUR15; - break; - case 24: - case 32: - bpp = 4; - fmt = PLANB_COLOUR32; - break; - default: - planb_unlock(pb); - return -EINVAL; - } - if (bpp * v.width > v.bytesperline) { - planb_unlock(pb); - return -EINVAL; - } - pb->win.bpp = bpp; - pb->win.color_fmt = fmt; - pb->frame_buffer_phys = (unsigned long) v.base; - pb->win.sheight = v.height; - pb->win.swidth = v.width; - pb->picture.depth = pb->win.depth = v.depth; - pb->win.bpl = pb->win.bpp * pb->win.swidth; - pb->win.pad = v.bytesperline - pb->win.bpl; - - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," - " bpl %d (+ %d)\n", v.base, v.width,v.height, - pb->win.bpp, pb->win.bpl, pb->win.pad); - - pb->cmd_buff_inited = 0; - if(pb->overlay) { - suspend_overlay(pb); - fill_cmd_buff(pb); - resume_overlay(pb); - } - planb_unlock(pb); - return 0; - } - case VIDIOCGFBUF: - { - struct video_buffer v; - - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); - - v.base = (void *)pb->frame_buffer_phys; - v.height = pb->win.sheight; - v.width = pb->win.swidth; - v.depth = pb->win.depth; - v.bytesperline = pb->win.bpl + pb->win.pad; - if (copy_to_user(arg, &v, sizeof(v))) - return -EFAULT; - return 0; - } - case VIDIOCCAPTURE: - { - int i; - - if(copy_from_user(&i, arg, sizeof(i))) - return -EFAULT; - if(i==0) { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); - - if (!(pb->overlay)) - return 0; - planb_lock(pb); - pb->overlay = 0; - overlay_stop(pb); - planb_unlock(pb); - } else { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); - - if (pb->frame_buffer_phys == 0 || - pb->win.width == 0 || - pb->win.height == 0) - return -EINVAL; - if (pb->overlay) - return 0; - planb_lock(pb); - pb->overlay = 1; - if(!(pb->cmd_buff_inited)) - fill_cmd_buff(pb); - overlay_start(pb); - planb_unlock(pb); - } - return 0; - } - case VIDIOCGCHAN: - { - struct video_channel v; - - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); - - if(copy_from_user(&v, arg,sizeof(v))) - return -EFAULT; - v.flags = 0; - v.tuners = 0; - v.type = VIDEO_TYPE_CAMERA; - v.norm = pb->win.norm; - switch(v.channel) - { - case 0: - strcpy(v.name,"Composite"); - break; - case 1: - strcpy(v.name,"SVHS"); - break; - default: - return -EINVAL; - break; - } - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - - return 0; - } - case VIDIOCSCHAN: - { - struct video_channel v; - - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); - - if(copy_from_user(&v, arg, sizeof(v))) - return -EFAULT; - - if (v.norm != pb->win.norm) { - int i, maxlines; - - switch (v.norm) - { - case VIDEO_MODE_PAL: - case VIDEO_MODE_SECAM: - maxlines = PLANB_MAXLINES; - break; - case VIDEO_MODE_NTSC: - maxlines = PLANB_NTSC_MAXLINES; - break; - default: - return -EINVAL; - break; - } - planb_lock(pb); - /* empty the grabbing queue */ - wait_event(pb->capq, !pb->grabbing); - pb->maxlines = maxlines; - pb->win.norm = v.norm; - /* Stop overlay if running */ - suspend_overlay(pb); - for(i = 0; i < MAX_GBUFFERS; i++) - pb->gnorm_switch[i] = 1; - /* I know it's an overkill, but.... */ - fill_cmd_buff(pb); - /* ok, now init it accordingly */ - saa_init_regs (pb); - /* restart overlay if it was running */ - resume_overlay(pb); - planb_unlock(pb); - } - - switch(v.channel) - { - case 0: /* Composite */ - saa_set (SAA7196_IOCC, - ((saa_regs[pb->win.norm][SAA7196_IOCC] & - ~7) | 3), pb); - break; - case 1: /* SVHS */ - saa_set (SAA7196_IOCC, - ((saa_regs[pb->win.norm][SAA7196_IOCC] & - ~7) | 4), pb); - break; - default: - return -EINVAL; - break; - } - - return 0; - } - case VIDIOCGPICT: - { - struct video_picture vp = pb->picture; - - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); - - switch(pb->win.color_fmt) { - case PLANB_GRAY: - vp.palette = VIDEO_PALETTE_GREY; - case PLANB_COLOUR15: - vp.palette = VIDEO_PALETTE_RGB555; - break; - case PLANB_COLOUR32: - vp.palette = VIDEO_PALETTE_RGB32; - break; - default: - vp.palette = 0; - break; - } - - if(copy_to_user(arg,&vp,sizeof(vp))) - return -EFAULT; - return 0; - } - case VIDIOCSPICT: - { - struct video_picture vp; - - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); - - if(copy_from_user(&vp,arg,sizeof(vp))) - return -EFAULT; - pb->picture = vp; - /* Should we do sanity checks here? */ - saa_set (SAA7196_BRIG, (unsigned char) - ((pb->picture.brightness) >> 8), pb); - saa_set (SAA7196_HUEC, (unsigned char) - ((pb->picture.hue) >> 8) ^ 0x80, pb); - saa_set (SAA7196_CSAT, (unsigned char) - ((pb->picture.colour) >> 9), pb); - saa_set (SAA7196_CONT, (unsigned char) - ((pb->picture.contrast) >> 9), pb); - - return 0; - } - case VIDIOCSWIN: - { - struct video_window vw; - struct video_clip clip; - int i; - - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); - - if(copy_from_user(&vw,arg,sizeof(vw))) - return -EFAULT; - - planb_lock(pb); - /* Stop overlay if running */ - suspend_overlay(pb); - pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0; - if (pb->win.x != vw.x || - pb->win.y != vw.y || - pb->win.width != vw.width || - pb->win.height != vw.height || - !pb->cmd_buff_inited) { - pb->win.x = vw.x; - pb->win.y = vw.y; - pb->win.width = vw.width; - pb->win.height = vw.height; - fill_cmd_buff(pb); - } - /* Reset clip mask */ - memset ((void *) pb->mask, 0xff, (pb->maxlines - * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); - /* Add any clip rects */ - for (i = 0; i < vw.clipcount; i++) { - if (copy_from_user(&clip, vw.clips + i, - sizeof(struct video_clip))) - return -EFAULT; - add_clip(pb, &clip); - } - /* restart overlay if it was running */ - resume_overlay(pb); - planb_unlock(pb); - return 0; - } - case VIDIOCGWIN: - { - struct video_window vw; - - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); - - vw.x=pb->win.x; - vw.y=pb->win.y; - vw.width=pb->win.width; - vw.height=pb->win.height; - vw.chromakey=0; - vw.flags=0; - if(pb->win.interlace) - vw.flags|=VIDEO_WINDOW_INTERLACE; - if(copy_to_user(arg,&vw,sizeof(vw))) - return -EFAULT; - return 0; - } - case VIDIOCSYNC: { - int i; - - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); - - if(copy_from_user((void *)&i,arg,sizeof(int))) - return -EFAULT; - - IDEBUG("PlanB: sync to frame %d\n", i); - - if(i > (MAX_GBUFFERS - 1) || i < 0) - return -EINVAL; -chk_grab: - switch (pb->frame_stat[i]) { - case GBUFFER_UNUSED: - return -EINVAL; - case GBUFFER_GRABBING: - IDEBUG("PlanB: waiting for grab" - " done (%d)\n", i); - interruptible_sleep_on(&pb->capq); - if(signal_pending(current)) - return -EINTR; - goto chk_grab; - case GBUFFER_DONE: - pb->frame_stat[i] = GBUFFER_UNUSED; - break; - } - return 0; - } - - case VIDIOCMCAPTURE: - { - struct video_mmap vm; - volatile unsigned int status; - - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); - - if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) - return -EFAULT; - status = pb->frame_stat[vm.frame]; - if (status != GBUFFER_UNUSED) - return -EBUSY; - - return vgrab(pb, &vm); - } - - case VIDIOCGMBUF: - { - int i; - struct video_mbuf vm; - - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); - - memset(&vm, 0 , sizeof(vm)); - vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; - vm.frames = MAX_GBUFFERS; - for(i = 0; i<MAX_GBUFFERS; i++) - vm.offsets[i] = PLANB_MAX_FBUF * i; - if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm))) - return -EFAULT; - return 0; - } - - case PLANBIOCGSAAREGS: - { - struct planb_saa_regs preg; - - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); - - if(copy_from_user(&preg, arg, sizeof(preg))) - return -EFAULT; - if(preg.addr >= SAA7196_NUMREGS) - return -EINVAL; - preg.val = saa_regs[pb->win.norm][preg.addr]; - if(copy_to_user((void *)arg, (void *)&preg, - sizeof(preg))) - return -EFAULT; - return 0; - } - - case PLANBIOCSSAAREGS: - { - struct planb_saa_regs preg; - - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); - - if(copy_from_user(&preg, arg, sizeof(preg))) - return -EFAULT; - if(preg.addr >= SAA7196_NUMREGS) - return -EINVAL; - saa_set (preg.addr, preg.val, pb); - return 0; - } - - case PLANBIOCGSTAT: - { - struct planb_stat_regs pstat; - - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); - - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); - pstat.saa_stat0 = saa_status(0, pb); - pstat.saa_stat1 = saa_status(1, pb); - - if(copy_to_user((void *)arg, (void *)&pstat, - sizeof(pstat))) - return -EFAULT; - return 0; - } - - case PLANBIOCSMODE: { - int v; - - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); - - if(copy_from_user(&v, arg, sizeof(v))) - return -EFAULT; - - switch(v) - { - case PLANB_TV_MODE: - saa_set (SAA7196_STDC, - (saa_regs[pb->win.norm][SAA7196_STDC] & - 0x7f), pb); - break; - case PLANB_VTR_MODE: - saa_set (SAA7196_STDC, - (saa_regs[pb->win.norm][SAA7196_STDC] | - 0x80), pb); - break; - default: - return -EINVAL; - break; - } - pb->win.mode = v; - return 0; - } - case PLANBIOCGMODE: { - int v=pb->win.mode; - - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); - - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - return 0; - } -#ifdef PLANB_GSCANLINE - case PLANBG_GRAB_BPL: { - int v=pb->gbytes_per_line; - - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); - - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - return 0; - } -#endif /* PLANB_GSCANLINE */ - case PLANB_INTR_DEBUG: { - int i; - - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); - - if(copy_from_user(&i, arg, sizeof(i))) - return -EFAULT; - - /* avoid hang ups all together */ - for (i = 0; i < MAX_GBUFFERS; i++) { - if(pb->frame_stat[i] == GBUFFER_GRABBING) { - pb->frame_stat[i] = GBUFFER_DONE; - } - } - if(pb->grabbing) - pb->grabbing--; - wake_up_interruptible(&pb->capq); - return 0; - } - case PLANB_INV_REGS: { - int i; - struct planb_any_regs any; - - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); - - if(copy_from_user(&any, arg, sizeof(any))) - return -EFAULT; - if(any.offset < 0 || any.offset + any.bytes > 0x400) - return -EINVAL; - if(any.bytes > 128) - return -EINVAL; - for (i = 0; i < any.bytes; i++) { - any.data[i] = - in_8((unsigned char *)pb->planb_base - + any.offset + i); - } - if(copy_to_user(arg,&any,sizeof(any))) - return -EFAULT; - return 0; - } - default: - { - DEBUG("PlanB: Unimplemented IOCTL\n"); - return -ENOIOCTLCMD; - } - /* Some IOCTLs are currently unsupported on PlanB */ - case VIDIOCGTUNER: { - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); - goto unimplemented; } - case VIDIOCSTUNER: { - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); - goto unimplemented; } - case VIDIOCSFREQ: { - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); - goto unimplemented; } - case VIDIOCGFREQ: { - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); - goto unimplemented; } - case VIDIOCKEY: { - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); - goto unimplemented; } - case VIDIOCSAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); - goto unimplemented; } - case VIDIOCGAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); - goto unimplemented; } -unimplemented: - DEBUG(" Unimplemented\n"); - return -ENOIOCTLCMD; - } - return 0; -} - -static int planb_mmap(struct vm_area_struct *vma, struct video_device *dev, const char *adr, unsigned long size) -{ - int i; - struct planb *pb = (struct planb *)dev; - unsigned long start = (unsigned long)adr; - - if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) - return -EINVAL; - if (!pb->rawbuf) { - int err; - if((err=grabbuf_alloc(pb))) - return err; - } - for (i = 0; i < pb->rawbuf_size; i++) { - unsigned long pfn; - - pfn = virt_to_phys((void *)pb->rawbuf[i]) >> PAGE_SHIFT; - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) - return -EAGAIN; - start += PAGE_SIZE; - if (size <= PAGE_SIZE) - break; - size -= PAGE_SIZE; - } - return 0; -} - -static struct video_device planb_template= -{ - .owner = THIS_MODULE, - .name = PLANB_DEVICE_NAME, - .type = VID_TYPE_OVERLAY, - .open = planb_open, - .close = planb_close, - .read = planb_read, - .write = planb_write, - .ioctl = planb_ioctl, - .mmap = planb_mmap, /* mmap? */ -}; - -static int init_planb(struct planb *pb) -{ - unsigned char saa_rev; - int i, result; - - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); - /* Simple sanity check */ - if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { - printk(KERN_ERR "PlanB: Option(s) invalid\n"); - return -2; - } - pb->win.norm = def_norm; - pb->win.mode = PLANB_TV_MODE; /* TV mode */ - pb->win.interlace=1; - pb->win.x=0; - pb->win.y=0; - pb->win.width=768; /* 640 */ - pb->win.height=576; /* 480 */ - pb->maxlines=576; -#if 0 - btv->win.cropwidth=768; /* 640 */ - btv->win.cropheight=576; /* 480 */ - btv->win.cropx=0; - btv->win.cropy=0; -#endif - pb->win.pad=0; - pb->win.bpp=4; - pb->win.depth=32; - pb->win.color_fmt=PLANB_COLOUR32; - pb->win.bpl=1024*pb->win.bpp; - pb->win.swidth=1024; - pb->win.sheight=768; -#ifdef PLANB_GSCANLINE - if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE - || (pb->gbytes_per_line <= 0)) - return -3; - else { - /* page align pb->gbytes_per_line for DMA purpose */ - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) - i>>=1; - pb->gbytes_per_line = i; - } -#endif - pb->tab_size = PLANB_MAXLINES + 40; - pb->suspend = 0; - mutex_init(&pb->lock); - pb->ch1_cmd = 0; - pb->ch2_cmd = 0; - pb->mask = 0; - pb->priv_space = 0; - pb->offset = 0; - pb->user = 0; - pb->overlay = 0; - init_waitqueue_head(&pb->suspendq); - pb->cmd_buff_inited = 0; - pb->frame_buffer_phys = 0; - - /* Reset DMA controllers */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - saa_rev = (saa_status(0, pb) & 0xf0) >> 4; - printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", saa_rev); - /* Initialize the SAA registers in memory and on chip */ - saa_init_regs (pb); - - /* clear interrupt mask */ - pb->intr_mask = PLANB_CLR_IRQ; - - result = request_irq(pb->irq, planb_irq, 0, "PlanB", pb); - if (result < 0) { - if (result==-EINVAL) - printk(KERN_ERR "PlanB: Bad irq number (%d) " - "or handler\n", (int)pb->irq); - else if (result==-EBUSY) - printk(KERN_ERR "PlanB: I don't know why, " - "but IRQ %d is busy\n", (int)pb->irq); - return result; - } - disable_irq(pb->irq); - - /* Now add the template and register the device unit. */ - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); - - pb->picture.brightness=0x90<<8; - pb->picture.contrast = 0x70 << 8; - pb->picture.colour = 0x70<<8; - pb->picture.hue = 0x8000; - pb->picture.whiteness = 0; - pb->picture.depth = pb->win.depth; - - pb->frame_stat=NULL; - init_waitqueue_head(&pb->capq); - for(i=0; i<MAX_GBUFFERS; i++) { - pb->gbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; - pb->gwidth[i]=0; - pb->gheight[i]=0; - pb->gfmt[i]=0; - pb->cap_cmd[i]=NULL; -#ifndef PLANB_GSCANLINE - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF - / PAGE_SIZE + 1) + MAX_LNUM * i; - pb->lsize[i] = 0; - pb->lnum[i] = 0; -#endif - } - pb->rawbuf=NULL; - pb->grabbing=0; - - /* enable interrupts */ - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - pb->intr_mask = PLANB_FRM_IRQ; - enable_irq(pb->irq); - - if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0) - return -1; - - return 0; -} - -/* - * Scan for a PlanB controller, request the irq and map the io memory - */ - -static int find_planb(void) -{ - struct planb *pb; - struct device_node *planb_devices; - unsigned char dev_fn, confreg, bus; - unsigned int old_base, new_base; - unsigned int irq; - struct pci_dev *pdev; - int rc; - - if (!machine_is(powermac)) - return 0; - - planb_devices = of_find_node_by_name(NULL, "planb"); - if (planb_devices == 0) { - planb_num=0; - printk(KERN_WARNING "PlanB: no device found!\n"); - return planb_num; - } - - if (planb_devices->next != NULL) - printk(KERN_ERR "Warning: only using first PlanB device!\n"); - pb = &planbs[0]; - planb_num = 1; - - if (planb_devices->n_addrs != 1) { - printk (KERN_WARNING "PlanB: expecting 1 address for planb " - "(got %d)", planb_devices->n_addrs); - of_node_put(planb_devices); - return 0; - } - - if (planb_devices->n_intrs == 0) { - printk(KERN_WARNING "PlanB: no intrs for device %s\n", - planb_devices->full_name); - of_node_put(planb_devices); - return 0; - } else { - irq = planb_devices->intrs[0].line; - } - - /* Initialize PlanB's PCI registers */ - - /* There is a bug with the way OF assigns addresses - to the devices behind the chaos bridge. - control needs only 0x1000 of space, but decodes only - the upper 16 bits. It therefore occupies a full 64K. - OF assigns the planb controller memory within this space; - so we need to change that here in order to access planb. */ - - /* We remap to 0xf1000000 in hope that nobody uses it ! */ - - bus = (planb_devices->addrs[0].space >> 16) & 0xff; - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; - confreg = planb_devices->addrs[0].space & 0xff; - old_base = planb_devices->addrs[0].address; - new_base = 0xf1000000; - of_node_put(planb_devices); - - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " - "membase 0x%x (base reg. 0x%x)\n", - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); - - pdev = pci_get_bus_and_slot(bus, dev_fn); - if (!pdev) { - printk(KERN_ERR "planb: cannot find slot\n"); - goto err_out; - } - - /* Enable response in memory space, bus mastering, - use memory write and invalidate */ - rc = pci_enable_device(pdev); - if (rc) { - printk(KERN_ERR "planb: cannot enable PCI device %s\n", - pci_name(pdev)); - goto err_out; - } - rc = pci_set_mwi(pdev); - if (rc) { - printk(KERN_ERR "planb: cannot enable MWI on PCI device %s\n", - pci_name(pdev)); - goto err_out_disable; - } - pci_set_master(pdev); - - /* Set the new base address */ - pci_write_config_dword (pdev, confreg, new_base); - - planb_regs = (volatile struct planb_registers *) - ioremap (new_base, 0x400); - pb->planb_base = planb_regs; - pb->planb_base_phys = (struct planb_registers *)new_base; - pb->irq = irq; - pb->dev = pdev; - - return planb_num; - -err_out_disable: - pci_disable_device(pdev); -err_out: - /* FIXME handle error */ /* comment moved from pci_find_slot, above */ - pci_dev_put(pdev); - return 0; -} - -static void release_planb(void) -{ - int i; - struct planb *pb; - - for (i=0;i<planb_num; i++) - { - pb=&planbs[i]; - - /* stop and flash DMAs unconditionally */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - /* clear and free interrupts */ - pb->intr_mask = PLANB_CLR_IRQ; - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - free_irq(pb->irq, pb); - - /* make sure all allocated memory are freed */ - planb_prepare_close(pb); - - printk(KERN_INFO "PlanB: unregistering with v4l\n"); - video_unregister_device(&pb->video_dev); - - pci_dev_put(pb->dev); - - /* note that iounmap() does nothing on the PPC right now */ - iounmap ((void *)pb->planb_base); - } -} - -static int __init init_planbs(void) -{ - int i; - - if (find_planb()<=0) - return -EIO; - - for (i=0; i<planb_num; i++) { - if (init_planb(&planbs[i])<0) { - printk(KERN_ERR "PlanB: error registering device %d" - " with v4l\n", i); - release_planb(); - return -EIO; - } - printk(KERN_INFO "PlanB: registered device %d with v4l\n", i); - } - return 0; -} - -static void __exit exit_planbs(void) -{ - release_planb(); -} - -module_init(init_planbs); -module_exit(exit_planbs); diff --git a/drivers/media/video/planb.h b/drivers/media/video/planb.h deleted file mode 100644 index e21b573..0000000 --- a/drivers/media/video/planb.h +++ /dev/null @@ -1,232 +0,0 @@ -/* - planb - PlanB frame grabber driver - - PlanB is used in the 7x00/8x00 series of PowerMacintosh - Computers as video input DMA controller. - - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) - - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) - - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) - - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ - -#ifndef _PLANB_H_ -#define _PLANB_H_ - -#ifdef __KERNEL__ -#include <asm/dbdma.h> -#include "saa7196.h" -#endif /* __KERNEL__ */ - -#define PLANB_DEVICE_NAME "Apple PlanB Video-In" -#define PLANB_REV "1.0" - -#ifdef __KERNEL__ -//#define PLANB_GSCANLINE /* use this if apps have the notion of */ - /* grab buffer scanline */ -/* This should be safe for both PAL and NTSC */ -#define PLANB_MAXPIXELS 768 -#define PLANB_MAXLINES 576 -#define PLANB_NTSC_MAXLINES 480 - -/* Uncomment your preferred norm ;-) */ -#define PLANB_DEF_NORM VIDEO_MODE_PAL -//#define PLANB_DEF_NORM VIDEO_MODE_NTSC -//#define PLANB_DEF_NORM VIDEO_MODE_SECAM - -/* fields settings */ -#define PLANB_GRAY 0x1 /* 8-bit mono? */ -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ -#define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ - -/* misc. flags for PlanB DMA operation */ -#define CH_SYNC 0x1 /* synchronize channels (set by ch1; - cleared by ch2) */ -#define FIELD_SYNC 0x2 /* used for the start of each field - (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ -#define EVEN_FIELD 0x0 /* even field is detected if unset */ -#define DMA_ABORT 0x2 /* error or just out of sync if set */ -#define ODD_FIELD 0x4 /* odd field is detected if set */ - -/* for capture operations */ -#define MAX_GBUFFERS 2 -/* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ -#ifdef PLANB_GSCANLINE -#define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ -#define TAB_FACTOR (1) -#else -#define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ -#define TAB_FACTOR (2) -#endif -#endif /* __KERNEL__ */ - -struct planb_saa_regs { - unsigned char addr; - unsigned char val; -}; - -struct planb_stat_regs { - unsigned int ch1_stat; - unsigned int ch2_stat; - unsigned char saa_stat0; - unsigned char saa_stat1; -}; - -struct planb_any_regs { - unsigned int offset; - unsigned int bytes; - unsigned char data[128]; -}; - -/* planb private ioctls */ -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ -#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ -#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ -#define PLANB_TV_MODE 1 -#define PLANB_VTR_MODE 2 -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ - -#ifdef PLANB_GSCANLINE -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ -#endif - -/* call wake_up_interruptible() with appropriate actions */ -#define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) -/* investigate which reg does what */ -#define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) - -#ifdef __KERNEL__ - -/* Potentially useful macros */ -#define PLANB_SET(x) ((x) << 16 | (x)) -#define PLANB_CLR(x) ((x) << 16) - -/* This represents the physical register layout */ -struct planb_registers { - volatile struct dbdma_regs ch1; /* 0x00: video in */ - volatile unsigned int even; /* 0x40: even field setting */ - volatile unsigned int odd; /* 0x44; odd field setting */ - unsigned int pad1[14]; /* empty? */ - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ - unsigned int pad2[16]; /* 0xc0: empty? */ - volatile unsigned int reg3; /* 0x100: ???? */ - volatile unsigned int intr_stat; /* 0x104: irq status */ -#define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ -#define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ -#define PLANB_FRM_IRQ 0x0100 /* end of frame */ - unsigned int pad3[1]; /* empty? */ - volatile unsigned int reg5; /* 0x10c: ??? */ - unsigned int pad4[60]; /* empty? */ - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ - char pad5[3]; - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ - char pad6[3]; - volatile unsigned char saa_status; /* SAA7196 status byte */ - /* There is more unused stuff here */ -}; - -struct planb_window { - int x, y; - ushort width, height; - ushort bpp, bpl, depth, pad; - ushort swidth, sheight; - int norm; - int interlace; - u32 color_fmt; - int chromakey; - int mode; /* used to switch between TV/VTR modes */ -}; - -struct planb_suspend { - int overlay; - int frame; - struct dbdma_cmd cmd; -}; - -struct planb { - struct video_device video_dev; - struct video_picture picture; /* Current picture params */ - struct video_audio audio_dev; /* Current audio params */ - - volatile struct planb_registers *planb_base; /* virt base of planb */ - struct planb_registers *planb_base_phys; /* phys base of planb */ - void *priv_space; /* Org. alloc. mem for kfree */ - int user; - unsigned int tab_size; - int maxlines; - struct mutex lock; - unsigned int irq; /* interrupt number */ - volatile unsigned int intr_mask; - struct pci_dev *dev; /* Our PCI device */ - - int overlay; /* overlay running? */ - struct planb_window win; - unsigned long frame_buffer_phys; /* We need phys for DMA */ - int offset; /* offset of pixel 1 */ - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ - volatile struct dbdma_cmd *overlay_last1; - volatile struct dbdma_cmd *overlay_last2; - unsigned long ch1_cmd_phys; - volatile unsigned char *mask; /* Clipmask buffer */ - int suspend; - wait_queue_head_t suspendq; - struct planb_suspend suspended; - int cmd_buff_inited; /* cmd buffer inited? */ - - int grabbing; - unsigned int gcount; - wait_queue_head_t capq; - int last_fr; - int prev_last_fr; - unsigned char **rawbuf; - int rawbuf_size; - int gbuf_idx[MAX_GBUFFERS]; - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; - int need_pre_capture[MAX_GBUFFERS]; -#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ - int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; - unsigned int gfmt[MAX_GBUFFERS]; - int gnorm_switch[MAX_GBUFFERS]; - volatile unsigned int *frame_stat; -#define GBUFFER_UNUSED 0x00U -#define GBUFFER_GRABBING 0x01U -#define GBUFFER_DONE 0x02U -#ifdef PLANB_GSCANLINE - int gbytes_per_line; -#else -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ - /* PLANB_MAXPIXELS changes */ - int l_fr_addr_idx[MAX_GBUFFERS]; - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; -#endif -}; - -#endif /* __KERNEL__ */ - -#endif /* _PLANB_H_ */ -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [2.6 patch] remove the broken planb driver 2008-07-14 20:45 ` [2.6 patch] remove the broken planb driver Adrian Bunk @ 2008-07-14 21:51 ` Hans Verkuil 2008-07-14 22:05 ` Mich Lanners 1 sibling, 0 replies; 6+ messages in thread From: Hans Verkuil @ 2008-07-14 21:51 UTC (permalink / raw) To: Adrian Bunk; +Cc: Benjamin Herrenschmidt, v4l, mlan, Mauro Carvalho Chehab On Monday 14 July 2008 22:45:50 Adrian Bunk wrote: > On Thu, Jul 10, 2008 at 06:08:53AM +1000, Benjamin Herrenschmidt wrote: > > On Wed, 2008-07-09 at 13:00 +0300, Adrian Bunk wrote: > > > On Tue, Jul 08, 2008 at 05:50:39PM +0200, Hans Verkuil wrote: > > > > Hi all, > > > > > > > > The PlanB driver ("PlanB Video-In on PowerMac") has been marked > > > > as broken for ages. No one seems to care about it. I propose to > > > > mark this driver for removal in 2.6.28 as well. > > > > > > It's broken for ages, and if there's agreement about the removal > > > there's no need to wait for 2.6.28. > > > > > > > Comments? > > > > > > When I proposed removing removing it last year Benjamin > > > Herrenschmidt (Cc'ed) said he'll have a look. [1] > > > > > > Benjamin? > > > > Hrm... I hate removing things ;-) > > I love removing things... ;-) I agree, there is nothing like that warm fuzzy feeling you get when your linecount for the day is negative :-) > > Oh well, I suppose you can. I never found time to look into it, > > but I still -do- have a machine somewhere with that HW (though > > whether it still boots is to be verified). > > > > Remove it for now, It's broken anyway. I can always re-submit it if > > I ever fix it. > > Thanks, patch below. > > > Cheers, > > Ben. > > cu > Adrian > > > <-- snip --> > > > This patch removes the planb driver that had a dependency on BROKEN > since May 2004. > > Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Hans > > --- > > drivers/media/video/Kconfig | 11 > drivers/media/video/Makefile | 1 > drivers/media/video/planb.c | 2309 > ----------------------------------- drivers/media/video/planb.h | > 232 --- > 4 files changed, 2553 deletions(-) > > e8ab9440efddeb9348c036db51d8f7254005c3ad > diff --git a/drivers/media/video/Kconfig > b/drivers/media/video/Kconfig index 5ccb0ae..8e362e4 100644 > --- a/drivers/media/video/Kconfig > +++ b/drivers/media/video/Kconfig > @@ -474,17 +474,6 @@ config VIDEO_PMS > To compile this driver as a module, choose M here: the > module will be called pms. > > -config VIDEO_PLANB > - tristate "PlanB Video-In on PowerMac" > - depends on PPC_PMAC && VIDEO_V4L1 && BROKEN > - help > - PlanB is the V4L driver for the PowerMac 7x00/8x00 series video > - input hardware. If you want to experiment with this, say Y. > - Otherwise, or if you don't understand a word, say N. See > - <http://www.cpu.lu/~mlan/linux/dev/planb.html> for more info. > - > - Saying M will compile this driver as a module (planb). > - > config VIDEO_BWQCAM > tristate "Quickcam BW Video For Linux" > depends on PARPORT && VIDEO_V4L1 > diff --git a/drivers/media/video/Makefile > b/drivers/media/video/Makefile index ecbbfaa..6805468 100644 > --- a/drivers/media/video/Makefile > +++ b/drivers/media/video/Makefile > @@ -55,7 +55,6 @@ obj-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o > zr36016.o obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o > > obj-$(CONFIG_VIDEO_PMS) += pms.o > -obj-$(CONFIG_VIDEO_PLANB) += planb.o > obj-$(CONFIG_VIDEO_VINO) += vino.o indycam.o > obj-$(CONFIG_VIDEO_STRADIS) += stradis.o > obj-$(CONFIG_VIDEO_CPIA) += cpia.o > diff --git a/drivers/media/video/planb.c > b/drivers/media/video/planb.c deleted file mode 100644 > index 36047d4..0000000 > --- a/drivers/media/video/planb.c > +++ /dev/null > @@ -1,2309 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler > (rjkm@thp.uni-koeln.de) - > - Additional debugging and coding by Takashi Oe > (toe@unlserve.unl.edu) - > - 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., 675 Mass Ave, Cambridge, MA 02139, > USA. -*/ > - > -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ > - > -#include <linux/init.h> > -#include <linux/errno.h> > -#include <linux/module.h> > -#include <linux/kernel.h> > -#include <linux/major.h> > -#include <linux/slab.h> > -#include <linux/types.h> > -#include <linux/pci.h> > -#include <linux/delay.h> > -#include <linux/vmalloc.h> > -#include <linux/mm.h> > -#include <linux/sched.h> > -#include <linux/videodev.h> > -#include <media/v4l2-common.h> > -#include <linux/wait.h> > -#include <asm/uaccess.h> > -#include <asm/io.h> > -#include <asm/prom.h> > -#include <asm/dbdma.h> > -#include <asm/pgtable.h> > -#include <asm/page.h> > -#include <asm/irq.h> > -#include <linux/mutex.h> > - > -#include "planb.h" > -#include "saa7196.h" > - > -/* Would you mind for some ugly debugging? */ > -#if 0 > -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ > -#else > -#define DEBUG(x...) /* Don't debug driver */ > -#endif > - > -#if 0 > -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part > */ -#else > -#define IDEBUG(x...) /* Don't debug interrupt part */ > -#endif > - > -/* Ever seen a Mac with more than 1 of these? */ > -#define PLANB_MAX 1 > - > -static int planb_num; > -static struct planb planbs[PLANB_MAX]; > -static volatile struct planb_registers *planb_regs; > - > -static int def_norm = PLANB_DEF_NORM; /* default norm */ > -static int video_nr = -1; > - > -module_param(def_norm, int, 0); > -MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, > 2=SECAM)"); -module_param(video_nr, int, 0); > -MODULE_LICENSE("GPL"); > - > - > -/* ------------------ PlanB Exported Functions ------------------ */ > -static long planb_write(struct video_device *, const char *, > unsigned long, int); -static long planb_read(struct video_device *, > char *, unsigned long, int); -static int planb_open(struct > video_device *, int); > -static void planb_close(struct video_device *); > -static int planb_ioctl(struct video_device *, unsigned int, void *); > -static int planb_init_done(struct video_device *); > -static int planb_mmap(struct video_device *, const char *, unsigned > long); -static void release_planb(void); > -int init_planbs(struct video_init *); > - > -/* ------------------ PlanB Internal Functions ------------------ */ > -static int planb_prepare_open(struct planb *); > -static void planb_prepare_close(struct planb *); > -static void saa_write_reg(unsigned char, unsigned char); > -static unsigned char saa_status(int, struct planb *); > -static void saa_set(unsigned char, unsigned char, struct planb *); > -static void saa_init_regs(struct planb *); > -static int grabbuf_alloc(struct planb *); > -static int vgrab(struct planb *, struct video_mmap *); > -static void add_clip(struct planb *, struct video_clip *); > -static void fill_cmd_buff(struct planb *); > -static void cmd_buff(struct planb *); > -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb > *); -static void overlay_start(struct planb *); > -static void overlay_stop(struct planb *); > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, > unsigned short, - unsigned int); > -static inline void tab_cmd_store(volatile struct dbdma_cmd *, > unsigned int, - unsigned int); > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned > short, - unsigned short, unsigned int, unsigned int); > -static int init_planb(struct planb *); > -static int find_planb(void); > -static void planb_pre_capture(int, int, struct planb *); > -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct > dbdma_cmd *, - int, int, int, int, int, struct planb *); > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); > -static unsigned int saa_geo_setup(int, int, int, int, struct planb > *); -static inline int overlay_is_active(struct planb *); > - > -/*******************************/ > -/* Memory management functions */ > -/*******************************/ > - > -static int grabbuf_alloc(struct planb *pb) > -{ > - int i, npage; > - > - npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1) > -#ifndef PLANB_GSCANLINE > - + MAX_LNUM > -#endif /* PLANB_GSCANLINE */ > - ); > - if ((pb->rawbuf = kmalloc(npage > - * sizeof(unsigned long), GFP_KERNEL)) == 0) > - return -ENOMEM; > - for (i = 0; i < npage; i++) { > - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL > - |GFP_DMA, 0); > - if (!pb->rawbuf[i]) > - break; > - SetPageReserved(virt_to_page(pb->rawbuf[i])); > - } > - if (i-- < npage) { > - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not > allocated\n"); - for (; i > 0; i--) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - return -ENOBUFS; > - } > - pb->rawbuf_size = npage; > - return 0; > -} > - > -/*****************************/ > -/* Hardware access functions */ > -/*****************************/ > - > -static void saa_write_reg(unsigned char addr, unsigned char val) > -{ > - planb_regs->saa_addr = addr; eieio(); > - planb_regs->saa_regval = val; eieio(); > - return; > -} > - > -/* return status byte 0 or 1: */ > -static unsigned char saa_status(int byte, struct planb *pb) > -{ > - saa_regs[pb->win.norm][SAA7196_STDC] = > - (saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1); > - saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]); > - > - /* Let's wait 30msec for this one */ > - msleep_interruptible(30); > - > - return (unsigned char)in_8 (&planb_regs->saa_status); > -} > - > -static void saa_set(unsigned char addr, unsigned char val, struct > planb *pb) -{ > - if(saa_regs[pb->win.norm][addr] != val) { > - saa_regs[pb->win.norm][addr] = val; > - saa_write_reg (addr, val); > - } > - return; > -} > - > -static void saa_init_regs(struct planb *pb) > -{ > - int i; > - > - for (i = 0; i < SAA7196_NUMREGS; i++) > - saa_write_reg (i, saa_regs[pb->win.norm][i]); > -} > - > -static unsigned int saa_geo_setup(int width, int height, int > interlace, int bpp, - struct planb *pb) > -{ > - int ht, norm = pb->win.norm; > - > - switch(bpp) { > - case 2: > - /* RGB555+a 1x16-bit + 16-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x3; > - break; > - case 1: > - case 4: > - /* RGB888 1x24-bit + 8-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x1; > - saa_regs[norm][SAA7196_FMTS] |= 0x2; > - break; > - default: > - return -EINVAL; > - } > - ht = (interlace ? height / 2 : height); > - saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); > - saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & > ~0x3) - | (width >> 8 & 0x3); > - saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff); > - saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3) > - | (ht >> 8 & 0x3); > - /* feed both fields if interlaced, or else feed only even fields */ > - saa_regs[norm][SAA7196_FMTS] = (interlace) ? > - (saa_regs[norm][SAA7196_FMTS] & ~0x60) > - : (saa_regs[norm][SAA7196_FMTS] | 0x60); > - /* transparent mode; extended format enabled */ > - saa_regs[norm][SAA7196_DPATH] |= 0x3; > - > - return 0; > -} > - > -/***************************/ > -/* DBDMA support functions */ > -/***************************/ > - > -static inline void planb_dbdma_restart(volatile struct dbdma_regs > *ch) -{ > - out_le32(&ch->control, PLANB_CLR(RUN)); > - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); > -} > - > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) > -{ > - int i = 0; > - > - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); > - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { > - IDEBUG("PlanB: waiting for DMA to stop\n"); > - i++; > - } > -} > - > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); > - st_le16(&ch->req_count, 4); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned short req_count, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le16(&ch->req_count, req_count); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static volatile struct dbdma_cmd *cmd_geo_setup( > - volatile struct dbdma_cmd *c1, int width, int height, int > interlace, - int bpp, int clip, struct planb *pb) > -{ > - int norm = pb->win.norm; > - > - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) > - return (volatile struct dbdma_cmd *)NULL; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_FMTS); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_FMTS]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_DPATH); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_DPATH]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTPIX); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTPIX]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_HFILT); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_HFILT]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTLINE); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTLINE]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_VYP); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_VYP]); > - return c1; > -} > - > -/******************************/ > -/* misc. supporting functions */ > -/******************************/ > - > -static inline void planb_lock(struct planb *pb) > -{ > - mutex_lock(&pb->lock); > -} > - > -static inline void planb_unlock(struct planb *pb) > -{ > - mutex_unlock(&pb->lock); > -} > - > -/***************/ > -/* Driver Core */ > -/***************/ > - > -static int planb_prepare_open(struct planb *pb) > -{ > - int i, size; > - > - /* allocate memory for two plus alpha command buffers (size: max > lines, - plus 40 commands handling, plus 1 alignment), plus dummy > command buf, - plus clipmask buffer, plus frame grabbing status */ > - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS > - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) > - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 > - +MAX_GBUFFERS*sizeof(unsigned int); > - if ((pb->priv_space = kzalloc (size, GFP_KERNEL)) == 0) > - return -ENOMEM; > - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) > - DBDMA_ALIGN (pb->priv_space); > - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; > - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); > - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; > - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; > - for (i = 1; i < MAX_GBUFFERS; i++) { > - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; > - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; > - } > - pb->frame_stat=(volatile unsigned int > *)(pb->pre_cmd[MAX_GBUFFERS-1] - + PLANB_DUMMY); > - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); > - > - pb->rawbuf = NULL; > - pb->rawbuf_size = 0; > - pb->grabbing = 0; > - for (i = 0; i < MAX_GBUFFERS; i++) { > - pb->frame_stat[i] = GBUFFER_UNUSED; > - pb->gwidth[i] = 0; > - pb->gheight[i] = 0; > - pb->gfmt[i] = 0; > - pb->gnorm_switch[i] = 0; > -#ifndef PLANB_GSCANLINE > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif /* PLANB_GSCANLINE */ > - } > - pb->gcount = 0; > - pb->suspend = 0; > - pb->last_fr = -999; > - pb->prev_last_fr = -999; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - return 0; > -} > - > -static void planb_prepare_close(struct planb *pb) > -{ > - int i; > - > - /* make sure the dma's are idle */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - /* free kernel memory of command buffers */ > - if(pb->priv_space != 0) { > - kfree (pb->priv_space); > - pb->priv_space = 0; > - pb->cmd_buff_inited = 0; > - } > - if(pb->rawbuf) { > - for (i = 0; i < pb->rawbuf_size; i++) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - } > - pb->rawbuf = NULL; > -} > - > -/*****************************/ > -/* overlay support functions */ > -/*****************************/ > - > -static inline int overlay_is_active(struct planb *pb) > -{ > - unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); > - unsigned int caddr = > (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); - > - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) > - && (caddr < (pb->ch1_cmd_phys + size)) > - && (caddr >= (unsigned)pb->ch1_cmd_phys); > -} > - > -static void overlay_start(struct planb *pb) > -{ > - > - DEBUG("PlanB: overlay_start()\n"); > - > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - > - DEBUG("PlanB: presumably, grabbing is in progress...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - out_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch2); > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = pb->last_fr; > - pb->last_fr = -2; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - IDEBUG("PlanB: became inactive " > - "in the mean time... reactivating\n"); > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } else { > - > - DEBUG("PlanB: currently idle, so can do whatever\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - st_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - st_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - planb_dbdma_restart(&pb->planb_base->ch2); > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = -1; > - } > - return; > -} > - > -static void overlay_stop(struct planb *pb) > -{ > - DEBUG("PlanB: overlay_stop()\n"); > - > - if(pb->last_fr == -1) { > - > - DEBUG("PlanB: no grabbing, it seems...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->last_fr = -999; > - } else if(pb->last_fr == -2) { > - unsigned int cmd_dep; > - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); > - eieio(); > - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); > - if(overlay_is_active(pb)) { > - > - DEBUG("PlanB: overlay is currently active\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(cmd_dep != pb->ch1_cmd_phys) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->last_fr = pb->prev_last_fr; > - pb->prev_last_fr = -999; > - } > - return; > -} > - > -static void suspend_overlay(struct planb *pb) > -{ > - int fr = -1; > - struct dbdma_cmd last; > - > - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); > - > - if(pb->suspend++) > - return; > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - if(pb->last_fr == -2) { > - fr = pb->prev_last_fr; > - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - } > - if(overlay_is_active(pb)) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->suspended.overlay = 1; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > - } > - } > - pb->suspended.overlay = 0; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > -} > - > -static void resume_overlay(struct planb *pb) > -{ > - > - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); > - > - if(pb->suspend > 1) > - return; > - if(pb->suspended.frame != -1) { > - memcpy((void*)pb->last_cmd[pb->suspended.frame], > - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); > - } > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - goto finish; > - } > - if(pb->suspended.overlay) { > - > - DEBUG("PlanB: overlay being resumed\n"); > - > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); > - /* Set command buffer addresses */ > - st_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - out_le32(&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->overlay_last2)); > - /* Start the DMA controller */ > - out_le32 (&pb->planb_base->ch2.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } else if(pb->suspended.frame != -1) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->last_cmd[pb->suspended.frame])); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } > - > -finish: > - pb->suspend--; > - wake_up_interruptible(&pb->suspendq); > -} > - > -static void add_clip(struct planb *pb, struct video_clip *clip) > -{ > - volatile unsigned char *base; > - int xc = clip->x, yc = clip->y; > - int wc = clip->width, hc = clip->height; > - int ww = pb->win.width, hw = pb->win.height; > - int x, y, xtmp1, xtmp2; > - > - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); > - > - if(xc < 0) { > - wc += xc; > - xc = 0; > - } > - if(yc < 0) { > - hc += yc; > - yc = 0; > - } > - if(xc + wc > ww) > - wc = ww - xc; > - if(wc <= 0) /* Nothing to do */ > - return; > - if(yc + hc > hw) > - hc = hw - yc; > - > - for (y = yc; y < yc+hc; y++) { > - xtmp1=xc>>3; > - xtmp2=(xc+wc)>>3; > - base = pb->mask + y*96; > - if(xc != 0 || wc >= 8) > - *(base + xtmp1) &= (unsigned char)(0x00ff & > - (0xff00 >> (xc&7))); > - for (x = xtmp1 + 1; x < xtmp2; x++) { > - *(base + x) = 0; > - } > - if(xc < (ww & ~0x7)) > - *(base + xtmp2) &= (unsigned char)(0x00ff >> > - ((xc+wc) & 7)); > - } > - > - return; > -} > - > -static void fill_cmd_buff(struct planb *pb) > -{ > - int restore = 0; > - volatile struct dbdma_cmd last; > - > - DEBUG("PlanB: fill_cmd_buff()\n"); > - > - if(pb->overlay_last1 != pb->ch1_cmd) { > - restore = 1; > - last = *(pb->overlay_last1); > - } > - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size > - * sizeof(struct dbdma_cmd)); > - cmd_buff (pb); > - if(restore) > - *(pb->overlay_last1) = last; > - if(pb->suspended.overlay) { > - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); > - if(jump_addr != pb->ch1_cmd_phys) { > - int i; > - > - DEBUG("PlanB: adjusting ch1's jump address\n"); > - > - for(i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->need_pre_capture[i]) { > - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) > - goto found; > - } else { > - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) > - goto found; > - } > - } > - > - DEBUG("PlanB: not found...\n"); > - > - goto out; > -found: > - if(pb->need_pre_capture[i]) > - out_le32(&pb->pre_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - else > - out_le32(&pb->cap_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - } > - } > -out: > - pb->cmd_buff_inited = 1; > - > - return; > -} > - > -static void cmd_buff(struct planb *pb) > -{ > - int i, bpp, count, nlines, stepsize, interlace; > - unsigned long base, jump, addr_com, addr_dep; > - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; > - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; > - > - interlace = pb->win.interlace; > - bpp = pb->win.bpp; > - count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ? > - (pb->win.swidth - pb->win.x) : pb->win.width)); > - nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ? > - (pb->win.sheight - pb->win.y) : pb->win.height); > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - addr_com = virt_to_bus(c1); > - addr_dep = virt_to_bus(&c1->cmd_dep); > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for > padding */ - if((c1 = cmd_geo_setup(c1, pb->win.width, > pb->win.height, interlace, - bpp, 1, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); > - return; > - } > - tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << > 16); - tab_cmd_store(c1++, addr_dep, jump); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - /* (1) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * > (pb->win.bpl - + pb->win.pad) + pb->win.x * bpp); > - > - if (interlace) { > - stepsize = 2; > - jump = virt_to_bus(c1 + (nlines + 1) / 2); > - } else { > - stepsize = 1; > - jump = virt_to_bus(c1 + nlines); > - } > - > - /* even field data: */ > - for (i=0; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Resync to odd field */ > - /* (2) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump = virt_to_bus(c1 + nlines / 2); > - for (i=1; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* And jump back to the start */ > -cmd_tab_data_end: > - pb->overlay_last1 = c1; /* keep a pointer to the last command */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); > - > - /* Clipmask command buffer */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c2++, DBDMA_NOP, 0); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(CH_SYNC)); > - /* wait until ch1 asserts ch_sync */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* clear ch_sync asserted by ch1 */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_CLR(CH_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(ODD_FIELD)); > - > - /* jump to end of even field if appropriate */ > - /* this points to (interlace)? pos. C: pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2): > - virt_to_bus(c2 + nlines + 2); > - /* if odd field, skip over to odd field clipmasking */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); > - > - /* even field mask: */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + nlines + 1): > - virt_to_bus(c2 + nlines); > - base = virt_to_bus(pb->mask); > - for (i=0; i < nlines; i += stepsize, c2++) > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* For non-interlaced, we use only even fields */ > - if(!interlace) > - goto cmd_tab_mask_end; > - > - /* odd field mask: */ > -/* C */ tab_cmd_store(c2++, > (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = virt_to_bus(c2 + nlines / 2); > - base = virt_to_bus(pb->mask); > - for (i=1; i < nlines; i += 2, c2++) /* abort if set */ > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* Inform channel 1 and jump back to start */ > -cmd_tab_mask_end: > - /* ok, I just realized this is kind of flawed. */ > - /* this part is reached only after odd field clipmasking. */ > - /* wanna clean up? */ > - /* wait for field sync to be set */ > - /* corresponds to fsync (1) of ch1 */ > -/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* restart ch1, meant to clear any dead bit or something */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_CLR(RUN)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_SET(RUN)); > - pb->overlay_last2 = c2; /* keep a pointer to the last command */ > - /* start over even field clipmasking */ > - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); > - > - eieio(); > - return; > -} > - > -/*********************************/ > -/* grabdisplay support functions */ > -/*********************************/ > - > -static int palette2fmt[] = { > - 0, > - PLANB_GRAY, > - 0, > - 0, > - 0, > - PLANB_COLOUR32, > - PLANB_COLOUR15, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > -}; > - > -#define PLANB_PALETTE_MAX 15 > - > -static int vgrab(struct planb *pb, struct video_mmap *mp) > -{ > - unsigned int fr = mp->frame; > - unsigned int format; > - > - if(pb->rawbuf==NULL) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - > - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, > - mp->width, mp->height, fr); > - > - if(pb->grabbing >= MAX_GBUFFERS) > - return -ENOBUFS; > - if(fr > (MAX_GBUFFERS - 1) || fr < 0) > - return -EINVAL; > - if(mp->height <= 0 || mp->width <= 0) > - return -EINVAL; > - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) > - return -EINVAL; > - if((format = palette2fmt[mp->format]) == 0) > - return -EINVAL; > - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = > bpp */ - return -EINVAL; > - > - planb_lock(pb); > - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || > - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { > - int i; > -#ifndef PLANB_GSCANLINE > - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] > - * pb->gfmt[fr]; > - unsigned int nsize = mp->width * mp->height * format; > -#endif > - > - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", > - mp->width, mp->height, mp->format); > - > -#ifndef PLANB_GSCANLINE > - if(pb->gnorm_switch[fr]) > - nsize = 0; > - if (nsize < osize) { > - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > - osize -= PAGE_SIZE; > - } > - } > - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]; i++) > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > -#else > -/* XXX TODO */ > -/* > - if(pb->gnorm_switch[fr]) > - memset((void *)pb->gbuffer[fr], 0, > - pb->gbytes_per_line * pb->gheight[fr]); > - else { > - if(mp-> > - for(i = 0; i < pb->gheight[fr]; i++) { > - memset((void *)(pb->gbuffer[fr] > - + pb->gbytes_per_line * i > - } > - } > -*/ > -#endif > - pb->gwidth[fr] = mp->width; > - pb->gheight[fr] = mp->height; > - pb->gfmt[fr] = format; > - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); > - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ > - pb->need_pre_capture[fr] = 1; > - pb->gnorm_switch[fr] = 0; > - } else > - pb->need_pre_capture[fr] = 0; > - pb->frame_stat[fr] = GBUFFER_GRABBING; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - /* let's be on the safe side. here is not timing critical. */ > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = fr; > - } else { > - int i; > - > - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); > - > - if((pb->last_fr == -1) || ((pb->last_fr == -2) && > - overlay_is_active(pb))) { > - > - IDEBUG("PlanB: overlay is active, grabbing defered\n"); > - > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_store(pb->pre_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_store(pb->cap_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - for(i = 0; overlay_is_active(pb) && i < 999; i++) > - IDEBUG("PlanB: waiting for overlay done\n"); > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else if(pb->last_fr == -2) { > - > - IDEBUG("PlanB: mixed mode detected, grabbing" > - " will be done before activating overlay\n"); > - > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->prev_last_fr] != > - pb->gwidth[fr] > - || pb->gheight[pb->prev_last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->prev_last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else { > - > - IDEBUG("PlanB: active grabbing session detected\n"); > - > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] > - || pb->gheight[pb->last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - pb->last_fr = fr; > - } > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: became inactive in the mean time..." > - "reactivating\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->grabbing++; > - planb_unlock(pb); > - > - return 0; > -} > - > -static void planb_pre_capture(int fr, int bpp, struct planb *pb) > -{ > - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; > - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], > interlace, - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered some problems\n"); > - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); > - return; > - } > - /* Sync to even field */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* For non-interlaced, we use even fields only */ > - if (pb->gheight[fr] <= pb->maxlines/2) > - goto cmd_tab_data_end; > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > -cmd_tab_data_end: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, > virt_to_bus(pb->cap_cmd[fr])); - > - eieio(); > -} > - > -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct > planb *pb) -{ > - int i, bpp, count, nlines, stepsize, interlace; > -#ifdef PLANB_GSCANLINE > - int scanline; > -#else > - int nlpp, leftover1; > - unsigned long base; > -#endif > - unsigned long jump; > - int pagei; > - volatile struct dbdma_cmd *c1; > - volatile struct dbdma_cmd *jump_addr; > - > - c1 = pb->cap_cmd[fr]; > - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - bpp = pb->gfmt[fr]; /* gfmt = bpp */ > - count = bpp * pb->gwidth[fr]; > - nlines = pb->gheight[fr]; > -#ifdef PLANB_GSCANLINE > - scanline = pb->gbytes_per_line; > -#else > - pb->lsize[fr] = count; > - pb->lnum[fr] = 0; > -#endif > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); > c1++; - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], > interlace, - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); > - return (pb->cap_cmd[fr] + 2); > - } > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - if (interlace) { > - stepsize = 2; > - jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2; > - } else { > - stepsize = 1; > - jump_addr = c1 + TAB_FACTOR * nlines; > - } > - jump = virt_to_bus(jump_addr); > - > - /* even field data: */ > - > - pagei = pb->gbuf_idx[fr]; > -#ifdef PLANB_GSCANLINE > - for (i = 0; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 0; > - leftover1 = 0; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + count * j * stepsize + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base > - + count * nlpp * stepsize + leftover1, jump); > - } else { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * nlpp * stepsize + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - } > - leftover1 = count * stepsize - lov0; > - i += stepsize; > - } > - } > - pagei++; > - } while(i < nlines); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump_addr = c1 + TAB_FACTOR * nlines / 2; > - jump = virt_to_bus(jump_addr); > -#ifdef PLANB_GSCANLINE > - for (i = 1; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 1; > - leftover1 = 0; > - pagei = pb->gbuf_idx[fr]; > - if(nlines <= 1) > - goto skip; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - if(leftover1 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + leftover1 - count, jump); > - i += stepsize; > - } > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + count * (j * stepsize + 1) + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 > count) { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * (nlpp * stepsize + 1) + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize > - - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - i += stepsize; > - } > - leftover1 = count * stepsize - lov0; > - } > - } > - pagei++; > - } while(i < nlines); > -skip: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > -cmd_tab_data_end: > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), > - (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); > - /* stop it */ > - tab_cmd_dbdma(c1, DBDMA_STOP, 0); > - > - eieio(); > - return c1; > -} > - > -static irqreturn_t planb_irq(int irq, void *dev_id) > -{ > - unsigned int stat, astat; > - struct planb *pb = (struct planb *)dev_id; > - > - IDEBUG("PlanB: planb_irq()\n"); > - > - /* get/clear interrupt status bits */ > - eieio(); > - stat = in_le32(&pb->planb_base->intr_stat); > - astat = stat & pb->intr_mask; > - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ > - & ~astat & stat & ~PLANB_GEN_IRQ); > - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); > - > - if(astat & PLANB_FRM_IRQ) { > - unsigned int fr = stat >> 9; > -#ifndef PLANB_GSCANLINE > - int i; > -#endif > - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); > - > - pb->gcount++; > - > - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", > - pb->grabbing, fr, pb->gcount); > -#ifndef PLANB_GSCANLINE > - IDEBUG("PlanB: %d * %d bytes are being copied over\n", > - pb->lnum[fr], pb->lsize[fr]); > - for(i = 0; i < pb->lnum[fr]; i++) { > - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; > - > - memcpy(pb->l_to_addr[fr][i], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], > - first); > - memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, > - pb->l_to_next_size[fr][i]); > - } > -#endif > - pb->frame_stat[fr] = GBUFFER_DONE; > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return IRQ_HANDLED; > - } > - /* incorrect interrupts? */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" > - " unconditionally\n"); > - return IRQ_HANDLED; > -} > - > -/******************************* > - * Device Operations functions * > - *******************************/ > - > -static int planb_open(struct video_device *dev, int mode) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if (pb->user == 0) { > - int err; > - if((err = planb_prepare_open(pb)) != 0) > - return err; > - } > - pb->user++; > - > - DEBUG("PlanB: device opened\n"); > - return 0; > -} > - > -static void planb_close(struct video_device *dev) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if(pb->user < 1) /* ??? */ > - return; > - planb_lock(pb); > - if (pb->user == 1) { > - if (pb->overlay) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->overlay = 0; > - } > - planb_prepare_close(pb); > - } > - pb->user--; > - planb_unlock(pb); > - > - DEBUG("PlanB: device closed\n"); > -} > - > -static long planb_read(struct video_device *v, char *buf, unsigned > long count, - int nonblock) > -{ > - DEBUG("planb: read request\n"); > - return -EINVAL; > -} > - > -static long planb_write(struct video_device *v, const char *buf, > - unsigned long count, int nonblock) > -{ > - DEBUG("planb: write request\n"); > - return -EINVAL; > -} > - > -static int planb_ioctl(struct video_device *dev, unsigned int cmd, > void *arg) -{ > - struct planb *pb=(struct planb *)dev; > - > - switch (cmd) > - { > - case VIDIOCGCAP: > - { > - struct video_capability b; > - > - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); > - > - strcpy (b.name, pb->video_dev.name); > - b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | > - VID_TYPE_FRAMERAM | VID_TYPE_SCALES | > - VID_TYPE_CAPTURE; > - b.channels = 2; /* composite & svhs */ > - b.audios = 0; > - b.maxwidth = PLANB_MAXPIXELS; > - b.maxheight = PLANB_MAXLINES; > - b.minwidth = 32; /* wild guess */ > - b.minheight = 32; > - if (copy_to_user(arg,&b,sizeof(b))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSFBUF: > - { > - struct video_buffer v; > - unsigned short bpp; > - unsigned int fmt; > - > - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); > - > - if (!capable(CAP_SYS_ADMIN) > - || !capable(CAP_SYS_RAWIO)) > - return -EPERM; > - if (copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - planb_lock(pb); > - switch(v.depth) { > - case 8: > - bpp = 1; > - fmt = PLANB_GRAY; > - break; > - case 15: > - case 16: > - bpp = 2; > - fmt = PLANB_COLOUR15; > - break; > - case 24: > - case 32: > - bpp = 4; > - fmt = PLANB_COLOUR32; > - break; > - default: > - planb_unlock(pb); > - return -EINVAL; > - } > - if (bpp * v.width > v.bytesperline) { > - planb_unlock(pb); > - return -EINVAL; > - } > - pb->win.bpp = bpp; > - pb->win.color_fmt = fmt; > - pb->frame_buffer_phys = (unsigned long) v.base; > - pb->win.sheight = v.height; > - pb->win.swidth = v.width; > - pb->picture.depth = pb->win.depth = v.depth; > - pb->win.bpl = pb->win.bpp * pb->win.swidth; > - pb->win.pad = v.bytesperline - pb->win.bpl; > - > - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," > - " bpl %d (+ %d)\n", v.base, v.width,v.height, > - pb->win.bpp, pb->win.bpl, pb->win.pad); > - > - pb->cmd_buff_inited = 0; > - if(pb->overlay) { > - suspend_overlay(pb); > - fill_cmd_buff(pb); > - resume_overlay(pb); > - } > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGFBUF: > - { > - struct video_buffer v; > - > - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); > - > - v.base = (void *)pb->frame_buffer_phys; > - v.height = pb->win.sheight; > - v.width = pb->win.swidth; > - v.depth = pb->win.depth; > - v.bytesperline = pb->win.bpl + pb->win.pad; > - if (copy_to_user(arg, &v, sizeof(v))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCCAPTURE: > - { > - int i; > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - if(i==0) { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); > - > - if (!(pb->overlay)) > - return 0; > - planb_lock(pb); > - pb->overlay = 0; > - overlay_stop(pb); > - planb_unlock(pb); > - } else { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); > - > - if (pb->frame_buffer_phys == 0 || > - pb->win.width == 0 || > - pb->win.height == 0) > - return -EINVAL; > - if (pb->overlay) > - return 0; > - planb_lock(pb); > - pb->overlay = 1; > - if(!(pb->cmd_buff_inited)) > - fill_cmd_buff(pb); > - overlay_start(pb); > - planb_unlock(pb); > - } > - return 0; > - } > - case VIDIOCGCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); > - > - if(copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - v.flags = 0; > - v.tuners = 0; > - v.type = VIDEO_TYPE_CAMERA; > - v.norm = pb->win.norm; > - switch(v.channel) > - { > - case 0: > - strcpy(v.name,"Composite"); > - break; > - case 1: > - strcpy(v.name,"SVHS"); > - break; > - default: > - return -EINVAL; > - break; > - } > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - > - return 0; > - } > - case VIDIOCSCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - if (v.norm != pb->win.norm) { > - int i, maxlines; > - > - switch (v.norm) > - { > - case VIDEO_MODE_PAL: > - case VIDEO_MODE_SECAM: > - maxlines = PLANB_MAXLINES; > - break; > - case VIDEO_MODE_NTSC: > - maxlines = PLANB_NTSC_MAXLINES; > - break; > - default: > - return -EINVAL; > - break; > - } > - planb_lock(pb); > - /* empty the grabbing queue */ > - wait_event(pb->capq, !pb->grabbing); > - pb->maxlines = maxlines; > - pb->win.norm = v.norm; > - /* Stop overlay if running */ > - suspend_overlay(pb); > - for(i = 0; i < MAX_GBUFFERS; i++) > - pb->gnorm_switch[i] = 1; > - /* I know it's an overkill, but.... */ > - fill_cmd_buff(pb); > - /* ok, now init it accordingly */ > - saa_init_regs (pb); > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - } > - > - switch(v.channel) > - { > - case 0: /* Composite */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 3), pb); > - break; > - case 1: /* SVHS */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 4), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - > - return 0; > - } > - case VIDIOCGPICT: > - { > - struct video_picture vp = pb->picture; > - > - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); > - > - switch(pb->win.color_fmt) { > - case PLANB_GRAY: > - vp.palette = VIDEO_PALETTE_GREY; > - case PLANB_COLOUR15: > - vp.palette = VIDEO_PALETTE_RGB555; > - break; > - case PLANB_COLOUR32: > - vp.palette = VIDEO_PALETTE_RGB32; > - break; > - default: > - vp.palette = 0; > - break; > - } > - > - if(copy_to_user(arg,&vp,sizeof(vp))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSPICT: > - { > - struct video_picture vp; > - > - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); > - > - if(copy_from_user(&vp,arg,sizeof(vp))) > - return -EFAULT; > - pb->picture = vp; > - /* Should we do sanity checks here? */ > - saa_set (SAA7196_BRIG, (unsigned char) > - ((pb->picture.brightness) >> 8), pb); > - saa_set (SAA7196_HUEC, (unsigned char) > - ((pb->picture.hue) >> 8) ^ 0x80, pb); > - saa_set (SAA7196_CSAT, (unsigned char) > - ((pb->picture.colour) >> 9), pb); > - saa_set (SAA7196_CONT, (unsigned char) > - ((pb->picture.contrast) >> 9), pb); > - > - return 0; > - } > - case VIDIOCSWIN: > - { > - struct video_window vw; > - struct video_clip clip; > - int i; > - > - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); > - > - if(copy_from_user(&vw,arg,sizeof(vw))) > - return -EFAULT; > - > - planb_lock(pb); > - /* Stop overlay if running */ > - suspend_overlay(pb); > - pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0; > - if (pb->win.x != vw.x || > - pb->win.y != vw.y || > - pb->win.width != vw.width || > - pb->win.height != vw.height || > - !pb->cmd_buff_inited) { > - pb->win.x = vw.x; > - pb->win.y = vw.y; > - pb->win.width = vw.width; > - pb->win.height = vw.height; > - fill_cmd_buff(pb); > - } > - /* Reset clip mask */ > - memset ((void *) pb->mask, 0xff, (pb->maxlines > - * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); > - /* Add any clip rects */ > - for (i = 0; i < vw.clipcount; i++) { > - if (copy_from_user(&clip, vw.clips + i, > - sizeof(struct video_clip))) > - return -EFAULT; > - add_clip(pb, &clip); > - } > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGWIN: > - { > - struct video_window vw; > - > - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); > - > - vw.x=pb->win.x; > - vw.y=pb->win.y; > - vw.width=pb->win.width; > - vw.height=pb->win.height; > - vw.chromakey=0; > - vw.flags=0; > - if(pb->win.interlace) > - vw.flags|=VIDEO_WINDOW_INTERLACE; > - if(copy_to_user(arg,&vw,sizeof(vw))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSYNC: { > - int i; > - > - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); > - > - if(copy_from_user((void *)&i,arg,sizeof(int))) > - return -EFAULT; > - > - IDEBUG("PlanB: sync to frame %d\n", i); > - > - if(i > (MAX_GBUFFERS - 1) || i < 0) > - return -EINVAL; > -chk_grab: > - switch (pb->frame_stat[i]) { > - case GBUFFER_UNUSED: > - return -EINVAL; > - case GBUFFER_GRABBING: > - IDEBUG("PlanB: waiting for grab" > - " done (%d)\n", i); > - interruptible_sleep_on(&pb->capq); > - if(signal_pending(current)) > - return -EINTR; > - goto chk_grab; > - case GBUFFER_DONE: > - pb->frame_stat[i] = GBUFFER_UNUSED; > - break; > - } > - return 0; > - } > - > - case VIDIOCMCAPTURE: > - { > - struct video_mmap vm; > - volatile unsigned int status; > - > - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); > - > - if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) > - return -EFAULT; > - status = pb->frame_stat[vm.frame]; > - if (status != GBUFFER_UNUSED) > - return -EBUSY; > - > - return vgrab(pb, &vm); > - } > - > - case VIDIOCGMBUF: > - { > - int i; > - struct video_mbuf vm; > - > - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); > - > - memset(&vm, 0 , sizeof(vm)); > - vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; > - vm.frames = MAX_GBUFFERS; > - for(i = 0; i<MAX_GBUFFERS; i++) > - vm.offsets[i] = PLANB_MAX_FBUF * i; > - if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCGSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - preg.val = saa_regs[pb->win.norm][preg.addr]; > - if(copy_to_user((void *)arg, (void *)&preg, > - sizeof(preg))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - saa_set (preg.addr, preg.val, pb); > - return 0; > - } > - > - case PLANBIOCGSTAT: > - { > - struct planb_stat_regs pstat; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); > - > - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); > - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); > - pstat.saa_stat0 = saa_status(0, pb); > - pstat.saa_stat1 = saa_status(1, pb); > - > - if(copy_to_user((void *)arg, (void *)&pstat, > - sizeof(pstat))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSMODE: { > - int v; > - > - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - switch(v) > - { > - case PLANB_TV_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] & > - 0x7f), pb); > - break; > - case PLANB_VTR_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] | > - 0x80), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - pb->win.mode = v; > - return 0; > - } > - case PLANBIOCGMODE: { > - int v=pb->win.mode; > - > - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#ifdef PLANB_GSCANLINE > - case PLANBG_GRAB_BPL: { > - int v=pb->gbytes_per_line; > - > - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#endif /* PLANB_GSCANLINE */ > - case PLANB_INTR_DEBUG: { > - int i; > - > - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - > - /* avoid hang ups all together */ > - for (i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->frame_stat[i] == GBUFFER_GRABBING) { > - pb->frame_stat[i] = GBUFFER_DONE; > - } > - } > - if(pb->grabbing) > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return 0; > - } > - case PLANB_INV_REGS: { > - int i; > - struct planb_any_regs any; > - > - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); > - > - if(copy_from_user(&any, arg, sizeof(any))) > - return -EFAULT; > - if(any.offset < 0 || any.offset + any.bytes > 0x400) > - return -EINVAL; > - if(any.bytes > 128) > - return -EINVAL; > - for (i = 0; i < any.bytes; i++) { > - any.data[i] = > - in_8((unsigned char *)pb->planb_base > - + any.offset + i); > - } > - if(copy_to_user(arg,&any,sizeof(any))) > - return -EFAULT; > - return 0; > - } > - default: > - { > - DEBUG("PlanB: Unimplemented IOCTL\n"); > - return -ENOIOCTLCMD; > - } > - /* Some IOCTLs are currently unsupported on PlanB */ > - case VIDIOCGTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); > - goto unimplemented; } > - case VIDIOCSTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); > - goto unimplemented; } > - case VIDIOCSFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); > - goto unimplemented; } > - case VIDIOCGFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); > - goto unimplemented; } > - case VIDIOCKEY: { > - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); > - goto unimplemented; } > - case VIDIOCSAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); > - goto unimplemented; } > - case VIDIOCGAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); > - goto unimplemented; } > -unimplemented: > - DEBUG(" Unimplemented\n"); > - return -ENOIOCTLCMD; > - } > - return 0; > -} > - > -static int planb_mmap(struct vm_area_struct *vma, struct > video_device *dev, const char *adr, unsigned long size) -{ > - int i; > - struct planb *pb = (struct planb *)dev; > - unsigned long start = (unsigned long)adr; > - > - if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) > - return -EINVAL; > - if (!pb->rawbuf) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - for (i = 0; i < pb->rawbuf_size; i++) { > - unsigned long pfn; > - > - pfn = virt_to_phys((void *)pb->rawbuf[i]) >> PAGE_SHIFT; > - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) > - return -EAGAIN; > - start += PAGE_SIZE; > - if (size <= PAGE_SIZE) > - break; > - size -= PAGE_SIZE; > - } > - return 0; > -} > - > -static struct video_device planb_template= > -{ > - .owner = THIS_MODULE, > - .name = PLANB_DEVICE_NAME, > - .type = VID_TYPE_OVERLAY, > - .open = planb_open, > - .close = planb_close, > - .read = planb_read, > - .write = planb_write, > - .ioctl = planb_ioctl, > - .mmap = planb_mmap, /* mmap? */ > -}; > - > -static int init_planb(struct planb *pb) > -{ > - unsigned char saa_rev; > - int i, result; > - > - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); > - /* Simple sanity check */ > - if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { > - printk(KERN_ERR "PlanB: Option(s) invalid\n"); > - return -2; > - } > - pb->win.norm = def_norm; > - pb->win.mode = PLANB_TV_MODE; /* TV mode */ > - pb->win.interlace=1; > - pb->win.x=0; > - pb->win.y=0; > - pb->win.width=768; /* 640 */ > - pb->win.height=576; /* 480 */ > - pb->maxlines=576; > -#if 0 > - btv->win.cropwidth=768; /* 640 */ > - btv->win.cropheight=576; /* 480 */ > - btv->win.cropx=0; > - btv->win.cropy=0; > -#endif > - pb->win.pad=0; > - pb->win.bpp=4; > - pb->win.depth=32; > - pb->win.color_fmt=PLANB_COLOUR32; > - pb->win.bpl=1024*pb->win.bpp; > - pb->win.swidth=1024; > - pb->win.sheight=768; > -#ifdef PLANB_GSCANLINE > - if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE > - || (pb->gbytes_per_line <= 0)) > - return -3; > - else { > - /* page align pb->gbytes_per_line for DMA purpose */ > - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) > - i>>=1; > - pb->gbytes_per_line = i; > - } > -#endif > - pb->tab_size = PLANB_MAXLINES + 40; > - pb->suspend = 0; > - mutex_init(&pb->lock); > - pb->ch1_cmd = 0; > - pb->ch2_cmd = 0; > - pb->mask = 0; > - pb->priv_space = 0; > - pb->offset = 0; > - pb->user = 0; > - pb->overlay = 0; > - init_waitqueue_head(&pb->suspendq); > - pb->cmd_buff_inited = 0; > - pb->frame_buffer_phys = 0; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - saa_rev = (saa_status(0, pb) & 0xf0) >> 4; > - printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", > saa_rev); - /* Initialize the SAA registers in memory and on chip */ > - saa_init_regs (pb); > - > - /* clear interrupt mask */ > - pb->intr_mask = PLANB_CLR_IRQ; > - > - result = request_irq(pb->irq, planb_irq, 0, "PlanB", pb); > - if (result < 0) { > - if (result==-EINVAL) > - printk(KERN_ERR "PlanB: Bad irq number (%d) " > - "or handler\n", (int)pb->irq); > - else if (result==-EBUSY) > - printk(KERN_ERR "PlanB: I don't know why, " > - "but IRQ %d is busy\n", (int)pb->irq); > - return result; > - } > - disable_irq(pb->irq); > - > - /* Now add the template and register the device unit. */ > - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); > - > - pb->picture.brightness=0x90<<8; > - pb->picture.contrast = 0x70 << 8; > - pb->picture.colour = 0x70<<8; > - pb->picture.hue = 0x8000; > - pb->picture.whiteness = 0; > - pb->picture.depth = pb->win.depth; > - > - pb->frame_stat=NULL; > - init_waitqueue_head(&pb->capq); > - for(i=0; i<MAX_GBUFFERS; i++) { > - pb->gbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; > - pb->gwidth[i]=0; > - pb->gheight[i]=0; > - pb->gfmt[i]=0; > - pb->cap_cmd[i]=NULL; > -#ifndef PLANB_GSCANLINE > - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF > - / PAGE_SIZE + 1) + MAX_LNUM * i; > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif > - } > - pb->rawbuf=NULL; > - pb->grabbing=0; > - > - /* enable interrupts */ > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - pb->intr_mask = PLANB_FRM_IRQ; > - enable_irq(pb->irq); > - > - if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, > video_nr)<0) - return -1; > - > - return 0; > -} > - > -/* > - * Scan for a PlanB controller, request the irq and map the io > memory - */ > - > -static int find_planb(void) > -{ > - struct planb *pb; > - struct device_node *planb_devices; > - unsigned char dev_fn, confreg, bus; > - unsigned int old_base, new_base; > - unsigned int irq; > - struct pci_dev *pdev; > - int rc; > - > - if (!machine_is(powermac)) > - return 0; > - > - planb_devices = of_find_node_by_name(NULL, "planb"); > - if (planb_devices == 0) { > - planb_num=0; > - printk(KERN_WARNING "PlanB: no device found!\n"); > - return planb_num; > - } > - > - if (planb_devices->next != NULL) > - printk(KERN_ERR "Warning: only using first PlanB device!\n"); > - pb = &planbs[0]; > - planb_num = 1; > - > - if (planb_devices->n_addrs != 1) { > - printk (KERN_WARNING "PlanB: expecting 1 address for planb " > - "(got %d)", planb_devices->n_addrs); > - of_node_put(planb_devices); > - return 0; > - } > - > - if (planb_devices->n_intrs == 0) { > - printk(KERN_WARNING "PlanB: no intrs for device %s\n", > - planb_devices->full_name); > - of_node_put(planb_devices); > - return 0; > - } else { > - irq = planb_devices->intrs[0].line; > - } > - > - /* Initialize PlanB's PCI registers */ > - > - /* There is a bug with the way OF assigns addresses > - to the devices behind the chaos bridge. > - control needs only 0x1000 of space, but decodes only > - the upper 16 bits. It therefore occupies a full 64K. > - OF assigns the planb controller memory within this space; > - so we need to change that here in order to access planb. */ > - > - /* We remap to 0xf1000000 in hope that nobody uses it ! */ > - > - bus = (planb_devices->addrs[0].space >> 16) & 0xff; > - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; > - confreg = planb_devices->addrs[0].space & 0xff; > - old_base = planb_devices->addrs[0].address; > - new_base = 0xf1000000; > - of_node_put(planb_devices); > - > - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " > - "membase 0x%x (base reg. 0x%x)\n", > - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); > - > - pdev = pci_get_bus_and_slot(bus, dev_fn); > - if (!pdev) { > - printk(KERN_ERR "planb: cannot find slot\n"); > - goto err_out; > - } > - > - /* Enable response in memory space, bus mastering, > - use memory write and invalidate */ > - rc = pci_enable_device(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable PCI device %s\n", > - pci_name(pdev)); > - goto err_out; > - } > - rc = pci_set_mwi(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable MWI on PCI device %s\n", > - pci_name(pdev)); > - goto err_out_disable; > - } > - pci_set_master(pdev); > - > - /* Set the new base address */ > - pci_write_config_dword (pdev, confreg, new_base); > - > - planb_regs = (volatile struct planb_registers *) > - ioremap (new_base, 0x400); > - pb->planb_base = planb_regs; > - pb->planb_base_phys = (struct planb_registers *)new_base; > - pb->irq = irq; > - pb->dev = pdev; > - > - return planb_num; > - > -err_out_disable: > - pci_disable_device(pdev); > -err_out: > - /* FIXME handle error */ /* comment moved from pci_find_slot, > above */ - pci_dev_put(pdev); > - return 0; > -} > - > -static void release_planb(void) > -{ > - int i; > - struct planb *pb; > - > - for (i=0;i<planb_num; i++) > - { > - pb=&planbs[i]; > - > - /* stop and flash DMAs unconditionally */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - /* clear and free interrupts */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - free_irq(pb->irq, pb); > - > - /* make sure all allocated memory are freed */ > - planb_prepare_close(pb); > - > - printk(KERN_INFO "PlanB: unregistering with v4l\n"); > - video_unregister_device(&pb->video_dev); > - > - pci_dev_put(pb->dev); > - > - /* note that iounmap() does nothing on the PPC right now */ > - iounmap ((void *)pb->planb_base); > - } > -} > - > -static int __init init_planbs(void) > -{ > - int i; > - > - if (find_planb()<=0) > - return -EIO; > - > - for (i=0; i<planb_num; i++) { > - if (init_planb(&planbs[i])<0) { > - printk(KERN_ERR "PlanB: error registering device %d" > - " with v4l\n", i); > - release_planb(); > - return -EIO; > - } > - printk(KERN_INFO "PlanB: registered device %d with v4l\n", i); > - } > - return 0; > -} > - > -static void __exit exit_planbs(void) > -{ > - release_planb(); > -} > - > -module_init(init_planbs); > -module_exit(exit_planbs); > diff --git a/drivers/media/video/planb.h > b/drivers/media/video/planb.h deleted file mode 100644 > index e21b573..0000000 > --- a/drivers/media/video/planb.h > +++ /dev/null > @@ -1,232 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler > (rjkm@thp.uni-koeln.de) - > - Additional debugging and coding by Takashi Oe > (toe@unlserve.unl.edu) - > - > - 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., 675 Mass Ave, Cambridge, MA 02139, > USA. -*/ > - > -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ > - > -#ifndef _PLANB_H_ > -#define _PLANB_H_ > - > -#ifdef __KERNEL__ > -#include <asm/dbdma.h> > -#include "saa7196.h" > -#endif /* __KERNEL__ */ > - > -#define PLANB_DEVICE_NAME "Apple PlanB Video-In" > -#define PLANB_REV "1.0" > - > -#ifdef __KERNEL__ > -//#define PLANB_GSCANLINE /* use this if apps have the notion of */ > - /* grab buffer scanline */ > -/* This should be safe for both PAL and NTSC */ > -#define PLANB_MAXPIXELS 768 > -#define PLANB_MAXLINES 576 > -#define PLANB_NTSC_MAXLINES 480 > - > -/* Uncomment your preferred norm ;-) */ > -#define PLANB_DEF_NORM VIDEO_MODE_PAL > -//#define PLANB_DEF_NORM VIDEO_MODE_NTSC > -//#define PLANB_DEF_NORM VIDEO_MODE_SECAM > - > -/* fields settings */ > -#define PLANB_GRAY 0x1 /* 8-bit mono? */ > -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ > -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ > -#define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ > - > -/* misc. flags for PlanB DMA operation */ > -#define CH_SYNC 0x1 /* synchronize channels (set by ch1; > - cleared by ch2) */ > -#define FIELD_SYNC 0x2 /* used for the start of each field > - (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ > -#define EVEN_FIELD 0x0 /* even field is detected if unset */ > -#define DMA_ABORT 0x2 /* error or just out of sync if set */ > -#define ODD_FIELD 0x4 /* odd field is detected if set */ > - > -/* for capture operations */ > -#define MAX_GBUFFERS 2 > -/* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ > -#ifdef PLANB_GSCANLINE > -#define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ > -#define TAB_FACTOR (1) > -#else > -#define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ > -#define TAB_FACTOR (2) > -#endif > -#endif /* __KERNEL__ */ > - > -struct planb_saa_regs { > - unsigned char addr; > - unsigned char val; > -}; > - > -struct planb_stat_regs { > - unsigned int ch1_stat; > - unsigned int ch2_stat; > - unsigned char saa_stat0; > - unsigned char saa_stat1; > -}; > - > -struct planb_any_regs { > - unsigned int offset; > - unsigned int bytes; > - unsigned char data[128]; > -}; > - > -/* planb private ioctls */ > -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct > planb_saa_regs) /* Read a saa7196 reg value */ -#define > PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct > planb_saa_regs) /* Set a saa7196 reg value */ -#define > PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct > planb_stat_regs) /* Read planb status */ -#define PLANB_TV_MODE 1 > -#define PLANB_VTR_MODE 2 > -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get > TV/VTR mode */ -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + > 4, int) /* Set TV/VTR mode */ - > -#ifdef PLANB_GSCANLINE > -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # > of bytes per scanline in grab buffer */ -#endif > - > -/* call wake_up_interruptible() with appropriate actions */ > -#define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) > -/* investigate which reg does what */ > -#define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct > planb_any_regs) - > -#ifdef __KERNEL__ > - > -/* Potentially useful macros */ > -#define PLANB_SET(x) ((x) << 16 | (x)) > -#define PLANB_CLR(x) ((x) << 16) > - > -/* This represents the physical register layout */ > -struct planb_registers { > - volatile struct dbdma_regs ch1; /* 0x00: video in */ > - volatile unsigned int even; /* 0x40: even field setting */ > - volatile unsigned int odd; /* 0x44; odd field setting */ > - unsigned int pad1[14]; /* empty? */ > - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ > - unsigned int pad2[16]; /* 0xc0: empty? */ > - volatile unsigned int reg3; /* 0x100: ???? */ > - volatile unsigned int intr_stat; /* 0x104: irq status */ > -#define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ > -#define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ > -#define PLANB_FRM_IRQ 0x0100 /* end of frame */ > - unsigned int pad3[1]; /* empty? */ > - volatile unsigned int reg5; /* 0x10c: ??? */ > - unsigned int pad4[60]; /* empty? */ > - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ > - char pad5[3]; > - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ > - char pad6[3]; > - volatile unsigned char saa_status; /* SAA7196 status byte */ > - /* There is more unused stuff here */ > -}; > - > -struct planb_window { > - int x, y; > - ushort width, height; > - ushort bpp, bpl, depth, pad; > - ushort swidth, sheight; > - int norm; > - int interlace; > - u32 color_fmt; > - int chromakey; > - int mode; /* used to switch between TV/VTR modes */ > -}; > - > -struct planb_suspend { > - int overlay; > - int frame; > - struct dbdma_cmd cmd; > -}; > - > -struct planb { > - struct video_device video_dev; > - struct video_picture picture; /* Current picture params */ > - struct video_audio audio_dev; /* Current audio params */ > - > - volatile struct planb_registers *planb_base; /* virt base of planb > */ - struct planb_registers *planb_base_phys; /* phys base of planb > */ - void *priv_space; /* Org. alloc. mem for kfree */ > - int user; > - unsigned int tab_size; > - int maxlines; > - struct mutex lock; > - unsigned int irq; /* interrupt number */ > - volatile unsigned int intr_mask; > - struct pci_dev *dev; /* Our PCI device */ > - > - int overlay; /* overlay running? */ > - struct planb_window win; > - unsigned long frame_buffer_phys; /* We need phys for DMA */ > - int offset; /* offset of pixel 1 */ > - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ > - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ > - volatile struct dbdma_cmd *overlay_last1; > - volatile struct dbdma_cmd *overlay_last2; > - unsigned long ch1_cmd_phys; > - volatile unsigned char *mask; /* Clipmask buffer */ > - int suspend; > - wait_queue_head_t suspendq; > - struct planb_suspend suspended; > - int cmd_buff_inited; /* cmd buffer inited? */ > - > - int grabbing; > - unsigned int gcount; > - wait_queue_head_t capq; > - int last_fr; > - int prev_last_fr; > - unsigned char **rawbuf; > - int rawbuf_size; > - int gbuf_idx[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; > - int need_pre_capture[MAX_GBUFFERS]; > -#define PLANB_DUMMY 40 /* # of command buf's allocated for > pre-capture seq. */ - int gwidth[MAX_GBUFFERS], > gheight[MAX_GBUFFERS]; > - unsigned int gfmt[MAX_GBUFFERS]; > - int gnorm_switch[MAX_GBUFFERS]; > - volatile unsigned int *frame_stat; > -#define GBUFFER_UNUSED 0x00U > -#define GBUFFER_GRABBING 0x01U > -#define GBUFFER_DONE 0x02U > -#ifdef PLANB_GSCANLINE > - int gbytes_per_line; > -#else > -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ > - /* PLANB_MAXPIXELS changes */ > - int l_fr_addr_idx[MAX_GBUFFERS]; > - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; > - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; > -#endif > -}; > - > -#endif /* __KERNEL__ */ > - > -#endif /* _PLANB_H_ */ -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [2.6 patch] remove the broken planb driver 2008-07-14 20:45 ` [2.6 patch] remove the broken planb driver Adrian Bunk 2008-07-14 21:51 ` Hans Verkuil @ 2008-07-14 22:05 ` Mich Lanners 2008-07-15 9:18 ` [2.6 patch v2] " Adrian Bunk 1 sibling, 1 reply; 6+ messages in thread From: Mich Lanners @ 2008-07-14 22:05 UTC (permalink / raw) To: Adrian Bunk; +Cc: Benjamin Herrenschmidt, v4l, Mauro Carvalho Chehab Hi all, Adrian Bunk wrote: >> Oh well, I suppose you can. I never found time to look into it, >> but I still -do- have a machine somewhere with that HW (though whether >> it still boots is to be verified). >> >> Remove it for now, It's broken anyway. I can always re-submit it if I >> ever fix it. I agree with Ben, let's remove this stuff. > Thanks, patch below. Adrian, can you also remove drivers/media/video/saa7196.h, which is only used by PlanB? Sorry for not doing it myself, but I don't even have a current kernel source at hand to diff..... Thanks. > <-- snip --> > > > This patch removes the planb driver that had a dependency on BROKEN > since May 2004. > > Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Michel Lanners <mlan@cpu.lu> > --- > > drivers/media/video/Kconfig | 11 > drivers/media/video/Makefile | 1 > drivers/media/video/planb.c | 2309 ----------------------------------- > drivers/media/video/planb.h | 232 --- > 4 files changed, 2553 deletions(-) > > e8ab9440efddeb9348c036db51d8f7254005c3ad > diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig > index 5ccb0ae..8e362e4 100644 > --- a/drivers/media/video/Kconfig > +++ b/drivers/media/video/Kconfig > @@ -474,17 +474,6 @@ config VIDEO_PMS > To compile this driver as a module, choose M here: the > module will be called pms. > > -config VIDEO_PLANB > - tristate "PlanB Video-In on PowerMac" > - depends on PPC_PMAC && VIDEO_V4L1 && BROKEN > - help > - PlanB is the V4L driver for the PowerMac 7x00/8x00 series video > - input hardware. If you want to experiment with this, say Y. > - Otherwise, or if you don't understand a word, say N. See > - <http://www.cpu.lu/~mlan/linux/dev/planb.html> for more info. > - > - Saying M will compile this driver as a module (planb). > - > config VIDEO_BWQCAM > tristate "Quickcam BW Video For Linux" > depends on PARPORT && VIDEO_V4L1 > diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile > index ecbbfaa..6805468 100644 > --- a/drivers/media/video/Makefile > +++ b/drivers/media/video/Makefile > @@ -55,7 +55,6 @@ obj-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o zr36016.o > obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o > > obj-$(CONFIG_VIDEO_PMS) += pms.o > -obj-$(CONFIG_VIDEO_PLANB) += planb.o > obj-$(CONFIG_VIDEO_VINO) += vino.o indycam.o > obj-$(CONFIG_VIDEO_STRADIS) += stradis.o > obj-$(CONFIG_VIDEO_CPIA) += cpia.o > diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c > deleted file mode 100644 > index 36047d4..0000000 > --- a/drivers/media/video/planb.c > +++ /dev/null > @@ -1,2309 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) > - > - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) > - > - 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., 675 Mass Ave, Cambridge, MA 02139, USA. > -*/ > - > -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ > - > -#include <linux/init.h> > -#include <linux/errno.h> > -#include <linux/module.h> > -#include <linux/kernel.h> > -#include <linux/major.h> > -#include <linux/slab.h> > -#include <linux/types.h> > -#include <linux/pci.h> > -#include <linux/delay.h> > -#include <linux/vmalloc.h> > -#include <linux/mm.h> > -#include <linux/sched.h> > -#include <linux/videodev.h> > -#include <media/v4l2-common.h> > -#include <linux/wait.h> > -#include <asm/uaccess.h> > -#include <asm/io.h> > -#include <asm/prom.h> > -#include <asm/dbdma.h> > -#include <asm/pgtable.h> > -#include <asm/page.h> > -#include <asm/irq.h> > -#include <linux/mutex.h> > - > -#include "planb.h" > -#include "saa7196.h" > - > -/* Would you mind for some ugly debugging? */ > -#if 0 > -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ > -#else > -#define DEBUG(x...) /* Don't debug driver */ > -#endif > - > -#if 0 > -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part */ > -#else > -#define IDEBUG(x...) /* Don't debug interrupt part */ > -#endif > - > -/* Ever seen a Mac with more than 1 of these? */ > -#define PLANB_MAX 1 > - > -static int planb_num; > -static struct planb planbs[PLANB_MAX]; > -static volatile struct planb_registers *planb_regs; > - > -static int def_norm = PLANB_DEF_NORM; /* default norm */ > -static int video_nr = -1; > - > -module_param(def_norm, int, 0); > -MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)"); > -module_param(video_nr, int, 0); > -MODULE_LICENSE("GPL"); > - > - > -/* ------------------ PlanB Exported Functions ------------------ */ > -static long planb_write(struct video_device *, const char *, unsigned long, int); > -static long planb_read(struct video_device *, char *, unsigned long, int); > -static int planb_open(struct video_device *, int); > -static void planb_close(struct video_device *); > -static int planb_ioctl(struct video_device *, unsigned int, void *); > -static int planb_init_done(struct video_device *); > -static int planb_mmap(struct video_device *, const char *, unsigned long); > -static void release_planb(void); > -int init_planbs(struct video_init *); > - > -/* ------------------ PlanB Internal Functions ------------------ */ > -static int planb_prepare_open(struct planb *); > -static void planb_prepare_close(struct planb *); > -static void saa_write_reg(unsigned char, unsigned char); > -static unsigned char saa_status(int, struct planb *); > -static void saa_set(unsigned char, unsigned char, struct planb *); > -static void saa_init_regs(struct planb *); > -static int grabbuf_alloc(struct planb *); > -static int vgrab(struct planb *, struct video_mmap *); > -static void add_clip(struct planb *, struct video_clip *); > -static void fill_cmd_buff(struct planb *); > -static void cmd_buff(struct planb *); > -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb *); > -static void overlay_start(struct planb *); > -static void overlay_stop(struct planb *); > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, unsigned short, > - unsigned int); > -static inline void tab_cmd_store(volatile struct dbdma_cmd *, unsigned int, > - unsigned int); > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned short, > - unsigned short, unsigned int, unsigned int); > -static int init_planb(struct planb *); > -static int find_planb(void); > -static void planb_pre_capture(int, int, struct planb *); > -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct dbdma_cmd *, > - int, int, int, int, int, struct planb *); > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); > -static unsigned int saa_geo_setup(int, int, int, int, struct planb *); > -static inline int overlay_is_active(struct planb *); > - > -/*******************************/ > -/* Memory management functions */ > -/*******************************/ > - > -static int grabbuf_alloc(struct planb *pb) > -{ > - int i, npage; > - > - npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1) > -#ifndef PLANB_GSCANLINE > - + MAX_LNUM > -#endif /* PLANB_GSCANLINE */ > - ); > - if ((pb->rawbuf = kmalloc(npage > - * sizeof(unsigned long), GFP_KERNEL)) == 0) > - return -ENOMEM; > - for (i = 0; i < npage; i++) { > - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL > - |GFP_DMA, 0); > - if (!pb->rawbuf[i]) > - break; > - SetPageReserved(virt_to_page(pb->rawbuf[i])); > - } > - if (i-- < npage) { > - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not allocated\n"); > - for (; i > 0; i--) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - return -ENOBUFS; > - } > - pb->rawbuf_size = npage; > - return 0; > -} > - > -/*****************************/ > -/* Hardware access functions */ > -/*****************************/ > - > -static void saa_write_reg(unsigned char addr, unsigned char val) > -{ > - planb_regs->saa_addr = addr; eieio(); > - planb_regs->saa_regval = val; eieio(); > - return; > -} > - > -/* return status byte 0 or 1: */ > -static unsigned char saa_status(int byte, struct planb *pb) > -{ > - saa_regs[pb->win.norm][SAA7196_STDC] = > - (saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1); > - saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]); > - > - /* Let's wait 30msec for this one */ > - msleep_interruptible(30); > - > - return (unsigned char)in_8 (&planb_regs->saa_status); > -} > - > -static void saa_set(unsigned char addr, unsigned char val, struct planb *pb) > -{ > - if(saa_regs[pb->win.norm][addr] != val) { > - saa_regs[pb->win.norm][addr] = val; > - saa_write_reg (addr, val); > - } > - return; > -} > - > -static void saa_init_regs(struct planb *pb) > -{ > - int i; > - > - for (i = 0; i < SAA7196_NUMREGS; i++) > - saa_write_reg (i, saa_regs[pb->win.norm][i]); > -} > - > -static unsigned int saa_geo_setup(int width, int height, int interlace, int bpp, > - struct planb *pb) > -{ > - int ht, norm = pb->win.norm; > - > - switch(bpp) { > - case 2: > - /* RGB555+a 1x16-bit + 16-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x3; > - break; > - case 1: > - case 4: > - /* RGB888 1x24-bit + 8-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x1; > - saa_regs[norm][SAA7196_FMTS] |= 0x2; > - break; > - default: > - return -EINVAL; > - } > - ht = (interlace ? height / 2 : height); > - saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); > - saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3) > - | (width >> 8 & 0x3); > - saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff); > - saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3) > - | (ht >> 8 & 0x3); > - /* feed both fields if interlaced, or else feed only even fields */ > - saa_regs[norm][SAA7196_FMTS] = (interlace) ? > - (saa_regs[norm][SAA7196_FMTS] & ~0x60) > - : (saa_regs[norm][SAA7196_FMTS] | 0x60); > - /* transparent mode; extended format enabled */ > - saa_regs[norm][SAA7196_DPATH] |= 0x3; > - > - return 0; > -} > - > -/***************************/ > -/* DBDMA support functions */ > -/***************************/ > - > -static inline void planb_dbdma_restart(volatile struct dbdma_regs *ch) > -{ > - out_le32(&ch->control, PLANB_CLR(RUN)); > - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); > -} > - > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) > -{ > - int i = 0; > - > - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); > - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { > - IDEBUG("PlanB: waiting for DMA to stop\n"); > - i++; > - } > -} > - > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); > - st_le16(&ch->req_count, 4); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned short req_count, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le16(&ch->req_count, req_count); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static volatile struct dbdma_cmd *cmd_geo_setup( > - volatile struct dbdma_cmd *c1, int width, int height, int interlace, > - int bpp, int clip, struct planb *pb) > -{ > - int norm = pb->win.norm; > - > - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) > - return (volatile struct dbdma_cmd *)NULL; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_FMTS); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_FMTS]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_DPATH); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_DPATH]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTPIX); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTPIX]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_HFILT); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_HFILT]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTLINE); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTLINE]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_VYP); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_VYP]); > - return c1; > -} > - > -/******************************/ > -/* misc. supporting functions */ > -/******************************/ > - > -static inline void planb_lock(struct planb *pb) > -{ > - mutex_lock(&pb->lock); > -} > - > -static inline void planb_unlock(struct planb *pb) > -{ > - mutex_unlock(&pb->lock); > -} > - > -/***************/ > -/* Driver Core */ > -/***************/ > - > -static int planb_prepare_open(struct planb *pb) > -{ > - int i, size; > - > - /* allocate memory for two plus alpha command buffers (size: max lines, > - plus 40 commands handling, plus 1 alignment), plus dummy command buf, > - plus clipmask buffer, plus frame grabbing status */ > - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS > - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) > - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 > - +MAX_GBUFFERS*sizeof(unsigned int); > - if ((pb->priv_space = kzalloc (size, GFP_KERNEL)) == 0) > - return -ENOMEM; > - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) > - DBDMA_ALIGN (pb->priv_space); > - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; > - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); > - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; > - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; > - for (i = 1; i < MAX_GBUFFERS; i++) { > - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; > - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; > - } > - pb->frame_stat=(volatile unsigned int *)(pb->pre_cmd[MAX_GBUFFERS-1] > - + PLANB_DUMMY); > - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); > - > - pb->rawbuf = NULL; > - pb->rawbuf_size = 0; > - pb->grabbing = 0; > - for (i = 0; i < MAX_GBUFFERS; i++) { > - pb->frame_stat[i] = GBUFFER_UNUSED; > - pb->gwidth[i] = 0; > - pb->gheight[i] = 0; > - pb->gfmt[i] = 0; > - pb->gnorm_switch[i] = 0; > -#ifndef PLANB_GSCANLINE > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif /* PLANB_GSCANLINE */ > - } > - pb->gcount = 0; > - pb->suspend = 0; > - pb->last_fr = -999; > - pb->prev_last_fr = -999; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - return 0; > -} > - > -static void planb_prepare_close(struct planb *pb) > -{ > - int i; > - > - /* make sure the dma's are idle */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - /* free kernel memory of command buffers */ > - if(pb->priv_space != 0) { > - kfree (pb->priv_space); > - pb->priv_space = 0; > - pb->cmd_buff_inited = 0; > - } > - if(pb->rawbuf) { > - for (i = 0; i < pb->rawbuf_size; i++) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - } > - pb->rawbuf = NULL; > -} > - > -/*****************************/ > -/* overlay support functions */ > -/*****************************/ > - > -static inline int overlay_is_active(struct planb *pb) > -{ > - unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); > - unsigned int caddr = (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); > - > - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) > - && (caddr < (pb->ch1_cmd_phys + size)) > - && (caddr >= (unsigned)pb->ch1_cmd_phys); > -} > - > -static void overlay_start(struct planb *pb) > -{ > - > - DEBUG("PlanB: overlay_start()\n"); > - > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - > - DEBUG("PlanB: presumably, grabbing is in progress...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - out_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch2); > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = pb->last_fr; > - pb->last_fr = -2; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - IDEBUG("PlanB: became inactive " > - "in the mean time... reactivating\n"); > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } else { > - > - DEBUG("PlanB: currently idle, so can do whatever\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - st_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - st_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - planb_dbdma_restart(&pb->planb_base->ch2); > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = -1; > - } > - return; > -} > - > -static void overlay_stop(struct planb *pb) > -{ > - DEBUG("PlanB: overlay_stop()\n"); > - > - if(pb->last_fr == -1) { > - > - DEBUG("PlanB: no grabbing, it seems...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->last_fr = -999; > - } else if(pb->last_fr == -2) { > - unsigned int cmd_dep; > - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); > - eieio(); > - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); > - if(overlay_is_active(pb)) { > - > - DEBUG("PlanB: overlay is currently active\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(cmd_dep != pb->ch1_cmd_phys) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->last_fr = pb->prev_last_fr; > - pb->prev_last_fr = -999; > - } > - return; > -} > - > -static void suspend_overlay(struct planb *pb) > -{ > - int fr = -1; > - struct dbdma_cmd last; > - > - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); > - > - if(pb->suspend++) > - return; > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - if(pb->last_fr == -2) { > - fr = pb->prev_last_fr; > - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - } > - if(overlay_is_active(pb)) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->suspended.overlay = 1; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > - } > - } > - pb->suspended.overlay = 0; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > -} > - > -static void resume_overlay(struct planb *pb) > -{ > - > - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); > - > - if(pb->suspend > 1) > - return; > - if(pb->suspended.frame != -1) { > - memcpy((void*)pb->last_cmd[pb->suspended.frame], > - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); > - } > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - goto finish; > - } > - if(pb->suspended.overlay) { > - > - DEBUG("PlanB: overlay being resumed\n"); > - > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); > - /* Set command buffer addresses */ > - st_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - out_le32(&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->overlay_last2)); > - /* Start the DMA controller */ > - out_le32 (&pb->planb_base->ch2.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } else if(pb->suspended.frame != -1) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->last_cmd[pb->suspended.frame])); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } > - > -finish: > - pb->suspend--; > - wake_up_interruptible(&pb->suspendq); > -} > - > -static void add_clip(struct planb *pb, struct video_clip *clip) > -{ > - volatile unsigned char *base; > - int xc = clip->x, yc = clip->y; > - int wc = clip->width, hc = clip->height; > - int ww = pb->win.width, hw = pb->win.height; > - int x, y, xtmp1, xtmp2; > - > - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); > - > - if(xc < 0) { > - wc += xc; > - xc = 0; > - } > - if(yc < 0) { > - hc += yc; > - yc = 0; > - } > - if(xc + wc > ww) > - wc = ww - xc; > - if(wc <= 0) /* Nothing to do */ > - return; > - if(yc + hc > hw) > - hc = hw - yc; > - > - for (y = yc; y < yc+hc; y++) { > - xtmp1=xc>>3; > - xtmp2=(xc+wc)>>3; > - base = pb->mask + y*96; > - if(xc != 0 || wc >= 8) > - *(base + xtmp1) &= (unsigned char)(0x00ff & > - (0xff00 >> (xc&7))); > - for (x = xtmp1 + 1; x < xtmp2; x++) { > - *(base + x) = 0; > - } > - if(xc < (ww & ~0x7)) > - *(base + xtmp2) &= (unsigned char)(0x00ff >> > - ((xc+wc) & 7)); > - } > - > - return; > -} > - > -static void fill_cmd_buff(struct planb *pb) > -{ > - int restore = 0; > - volatile struct dbdma_cmd last; > - > - DEBUG("PlanB: fill_cmd_buff()\n"); > - > - if(pb->overlay_last1 != pb->ch1_cmd) { > - restore = 1; > - last = *(pb->overlay_last1); > - } > - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size > - * sizeof(struct dbdma_cmd)); > - cmd_buff (pb); > - if(restore) > - *(pb->overlay_last1) = last; > - if(pb->suspended.overlay) { > - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); > - if(jump_addr != pb->ch1_cmd_phys) { > - int i; > - > - DEBUG("PlanB: adjusting ch1's jump address\n"); > - > - for(i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->need_pre_capture[i]) { > - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) > - goto found; > - } else { > - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) > - goto found; > - } > - } > - > - DEBUG("PlanB: not found...\n"); > - > - goto out; > -found: > - if(pb->need_pre_capture[i]) > - out_le32(&pb->pre_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - else > - out_le32(&pb->cap_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - } > - } > -out: > - pb->cmd_buff_inited = 1; > - > - return; > -} > - > -static void cmd_buff(struct planb *pb) > -{ > - int i, bpp, count, nlines, stepsize, interlace; > - unsigned long base, jump, addr_com, addr_dep; > - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; > - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; > - > - interlace = pb->win.interlace; > - bpp = pb->win.bpp; > - count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ? > - (pb->win.swidth - pb->win.x) : pb->win.width)); > - nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ? > - (pb->win.sheight - pb->win.y) : pb->win.height); > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - addr_com = virt_to_bus(c1); > - addr_dep = virt_to_bus(&c1->cmd_dep); > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */ > - if((c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, > - bpp, 1, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); > - return; > - } > - tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16); > - tab_cmd_store(c1++, addr_dep, jump); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - /* (1) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * (pb->win.bpl > - + pb->win.pad) + pb->win.x * bpp); > - > - if (interlace) { > - stepsize = 2; > - jump = virt_to_bus(c1 + (nlines + 1) / 2); > - } else { > - stepsize = 1; > - jump = virt_to_bus(c1 + nlines); > - } > - > - /* even field data: */ > - for (i=0; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Resync to odd field */ > - /* (2) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump = virt_to_bus(c1 + nlines / 2); > - for (i=1; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* And jump back to the start */ > -cmd_tab_data_end: > - pb->overlay_last1 = c1; /* keep a pointer to the last command */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); > - > - /* Clipmask command buffer */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c2++, DBDMA_NOP, 0); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(CH_SYNC)); > - /* wait until ch1 asserts ch_sync */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* clear ch_sync asserted by ch1 */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_CLR(CH_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(ODD_FIELD)); > - > - /* jump to end of even field if appropriate */ > - /* this points to (interlace)? pos. C: pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2): > - virt_to_bus(c2 + nlines + 2); > - /* if odd field, skip over to odd field clipmasking */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); > - > - /* even field mask: */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + nlines + 1): > - virt_to_bus(c2 + nlines); > - base = virt_to_bus(pb->mask); > - for (i=0; i < nlines; i += stepsize, c2++) > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* For non-interlaced, we use only even fields */ > - if(!interlace) > - goto cmd_tab_mask_end; > - > - /* odd field mask: */ > -/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = virt_to_bus(c2 + nlines / 2); > - base = virt_to_bus(pb->mask); > - for (i=1; i < nlines; i += 2, c2++) /* abort if set */ > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* Inform channel 1 and jump back to start */ > -cmd_tab_mask_end: > - /* ok, I just realized this is kind of flawed. */ > - /* this part is reached only after odd field clipmasking. */ > - /* wanna clean up? */ > - /* wait for field sync to be set */ > - /* corresponds to fsync (1) of ch1 */ > -/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* restart ch1, meant to clear any dead bit or something */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_CLR(RUN)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_SET(RUN)); > - pb->overlay_last2 = c2; /* keep a pointer to the last command */ > - /* start over even field clipmasking */ > - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); > - > - eieio(); > - return; > -} > - > -/*********************************/ > -/* grabdisplay support functions */ > -/*********************************/ > - > -static int palette2fmt[] = { > - 0, > - PLANB_GRAY, > - 0, > - 0, > - 0, > - PLANB_COLOUR32, > - PLANB_COLOUR15, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > -}; > - > -#define PLANB_PALETTE_MAX 15 > - > -static int vgrab(struct planb *pb, struct video_mmap *mp) > -{ > - unsigned int fr = mp->frame; > - unsigned int format; > - > - if(pb->rawbuf==NULL) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - > - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, > - mp->width, mp->height, fr); > - > - if(pb->grabbing >= MAX_GBUFFERS) > - return -ENOBUFS; > - if(fr > (MAX_GBUFFERS - 1) || fr < 0) > - return -EINVAL; > - if(mp->height <= 0 || mp->width <= 0) > - return -EINVAL; > - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) > - return -EINVAL; > - if((format = palette2fmt[mp->format]) == 0) > - return -EINVAL; > - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = bpp */ > - return -EINVAL; > - > - planb_lock(pb); > - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || > - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { > - int i; > -#ifndef PLANB_GSCANLINE > - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] > - * pb->gfmt[fr]; > - unsigned int nsize = mp->width * mp->height * format; > -#endif > - > - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", > - mp->width, mp->height, mp->format); > - > -#ifndef PLANB_GSCANLINE > - if(pb->gnorm_switch[fr]) > - nsize = 0; > - if (nsize < osize) { > - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > - osize -= PAGE_SIZE; > - } > - } > - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]; i++) > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > -#else > -/* XXX TODO */ > -/* > - if(pb->gnorm_switch[fr]) > - memset((void *)pb->gbuffer[fr], 0, > - pb->gbytes_per_line * pb->gheight[fr]); > - else { > - if(mp-> > - for(i = 0; i < pb->gheight[fr]; i++) { > - memset((void *)(pb->gbuffer[fr] > - + pb->gbytes_per_line * i > - } > - } > -*/ > -#endif > - pb->gwidth[fr] = mp->width; > - pb->gheight[fr] = mp->height; > - pb->gfmt[fr] = format; > - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); > - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ > - pb->need_pre_capture[fr] = 1; > - pb->gnorm_switch[fr] = 0; > - } else > - pb->need_pre_capture[fr] = 0; > - pb->frame_stat[fr] = GBUFFER_GRABBING; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - /* let's be on the safe side. here is not timing critical. */ > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = fr; > - } else { > - int i; > - > - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); > - > - if((pb->last_fr == -1) || ((pb->last_fr == -2) && > - overlay_is_active(pb))) { > - > - IDEBUG("PlanB: overlay is active, grabbing defered\n"); > - > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_store(pb->pre_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_store(pb->cap_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - for(i = 0; overlay_is_active(pb) && i < 999; i++) > - IDEBUG("PlanB: waiting for overlay done\n"); > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else if(pb->last_fr == -2) { > - > - IDEBUG("PlanB: mixed mode detected, grabbing" > - " will be done before activating overlay\n"); > - > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->prev_last_fr] != > - pb->gwidth[fr] > - || pb->gheight[pb->prev_last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->prev_last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else { > - > - IDEBUG("PlanB: active grabbing session detected\n"); > - > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] > - || pb->gheight[pb->last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - pb->last_fr = fr; > - } > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: became inactive in the mean time..." > - "reactivating\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->grabbing++; > - planb_unlock(pb); > - > - return 0; > -} > - > -static void planb_pre_capture(int fr, int bpp, struct planb *pb) > -{ > - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; > - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, > - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered some problems\n"); > - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); > - return; > - } > - /* Sync to even field */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* For non-interlaced, we use even fields only */ > - if (pb->gheight[fr] <= pb->maxlines/2) > - goto cmd_tab_data_end; > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > -cmd_tab_data_end: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->cap_cmd[fr])); > - > - eieio(); > -} > - > -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct planb *pb) > -{ > - int i, bpp, count, nlines, stepsize, interlace; > -#ifdef PLANB_GSCANLINE > - int scanline; > -#else > - int nlpp, leftover1; > - unsigned long base; > -#endif > - unsigned long jump; > - int pagei; > - volatile struct dbdma_cmd *c1; > - volatile struct dbdma_cmd *jump_addr; > - > - c1 = pb->cap_cmd[fr]; > - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - bpp = pb->gfmt[fr]; /* gfmt = bpp */ > - count = bpp * pb->gwidth[fr]; > - nlines = pb->gheight[fr]; > -#ifdef PLANB_GSCANLINE > - scanline = pb->gbytes_per_line; > -#else > - pb->lsize[fr] = count; > - pb->lnum[fr] = 0; > -#endif > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++; > - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, > - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); > - return (pb->cap_cmd[fr] + 2); > - } > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - if (interlace) { > - stepsize = 2; > - jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2; > - } else { > - stepsize = 1; > - jump_addr = c1 + TAB_FACTOR * nlines; > - } > - jump = virt_to_bus(jump_addr); > - > - /* even field data: */ > - > - pagei = pb->gbuf_idx[fr]; > -#ifdef PLANB_GSCANLINE > - for (i = 0; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 0; > - leftover1 = 0; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + count * j * stepsize + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base > - + count * nlpp * stepsize + leftover1, jump); > - } else { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * nlpp * stepsize + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - } > - leftover1 = count * stepsize - lov0; > - i += stepsize; > - } > - } > - pagei++; > - } while(i < nlines); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump_addr = c1 + TAB_FACTOR * nlines / 2; > - jump = virt_to_bus(jump_addr); > -#ifdef PLANB_GSCANLINE > - for (i = 1; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 1; > - leftover1 = 0; > - pagei = pb->gbuf_idx[fr]; > - if(nlines <= 1) > - goto skip; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - if(leftover1 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + leftover1 - count, jump); > - i += stepsize; > - } > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + count * (j * stepsize + 1) + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 > count) { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * (nlpp * stepsize + 1) + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize > - - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - i += stepsize; > - } > - leftover1 = count * stepsize - lov0; > - } > - } > - pagei++; > - } while(i < nlines); > -skip: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > -cmd_tab_data_end: > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), > - (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); > - /* stop it */ > - tab_cmd_dbdma(c1, DBDMA_STOP, 0); > - > - eieio(); > - return c1; > -} > - > -static irqreturn_t planb_irq(int irq, void *dev_id) > -{ > - unsigned int stat, astat; > - struct planb *pb = (struct planb *)dev_id; > - > - IDEBUG("PlanB: planb_irq()\n"); > - > - /* get/clear interrupt status bits */ > - eieio(); > - stat = in_le32(&pb->planb_base->intr_stat); > - astat = stat & pb->intr_mask; > - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ > - & ~astat & stat & ~PLANB_GEN_IRQ); > - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); > - > - if(astat & PLANB_FRM_IRQ) { > - unsigned int fr = stat >> 9; > -#ifndef PLANB_GSCANLINE > - int i; > -#endif > - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); > - > - pb->gcount++; > - > - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", > - pb->grabbing, fr, pb->gcount); > -#ifndef PLANB_GSCANLINE > - IDEBUG("PlanB: %d * %d bytes are being copied over\n", > - pb->lnum[fr], pb->lsize[fr]); > - for(i = 0; i < pb->lnum[fr]; i++) { > - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; > - > - memcpy(pb->l_to_addr[fr][i], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], > - first); > - memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, > - pb->l_to_next_size[fr][i]); > - } > -#endif > - pb->frame_stat[fr] = GBUFFER_DONE; > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return IRQ_HANDLED; > - } > - /* incorrect interrupts? */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" > - " unconditionally\n"); > - return IRQ_HANDLED; > -} > - > -/******************************* > - * Device Operations functions * > - *******************************/ > - > -static int planb_open(struct video_device *dev, int mode) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if (pb->user == 0) { > - int err; > - if((err = planb_prepare_open(pb)) != 0) > - return err; > - } > - pb->user++; > - > - DEBUG("PlanB: device opened\n"); > - return 0; > -} > - > -static void planb_close(struct video_device *dev) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if(pb->user < 1) /* ??? */ > - return; > - planb_lock(pb); > - if (pb->user == 1) { > - if (pb->overlay) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->overlay = 0; > - } > - planb_prepare_close(pb); > - } > - pb->user--; > - planb_unlock(pb); > - > - DEBUG("PlanB: device closed\n"); > -} > - > -static long planb_read(struct video_device *v, char *buf, unsigned long count, > - int nonblock) > -{ > - DEBUG("planb: read request\n"); > - return -EINVAL; > -} > - > -static long planb_write(struct video_device *v, const char *buf, > - unsigned long count, int nonblock) > -{ > - DEBUG("planb: write request\n"); > - return -EINVAL; > -} > - > -static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg) > -{ > - struct planb *pb=(struct planb *)dev; > - > - switch (cmd) > - { > - case VIDIOCGCAP: > - { > - struct video_capability b; > - > - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); > - > - strcpy (b.name, pb->video_dev.name); > - b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | > - VID_TYPE_FRAMERAM | VID_TYPE_SCALES | > - VID_TYPE_CAPTURE; > - b.channels = 2; /* composite & svhs */ > - b.audios = 0; > - b.maxwidth = PLANB_MAXPIXELS; > - b.maxheight = PLANB_MAXLINES; > - b.minwidth = 32; /* wild guess */ > - b.minheight = 32; > - if (copy_to_user(arg,&b,sizeof(b))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSFBUF: > - { > - struct video_buffer v; > - unsigned short bpp; > - unsigned int fmt; > - > - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); > - > - if (!capable(CAP_SYS_ADMIN) > - || !capable(CAP_SYS_RAWIO)) > - return -EPERM; > - if (copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - planb_lock(pb); > - switch(v.depth) { > - case 8: > - bpp = 1; > - fmt = PLANB_GRAY; > - break; > - case 15: > - case 16: > - bpp = 2; > - fmt = PLANB_COLOUR15; > - break; > - case 24: > - case 32: > - bpp = 4; > - fmt = PLANB_COLOUR32; > - break; > - default: > - planb_unlock(pb); > - return -EINVAL; > - } > - if (bpp * v.width > v.bytesperline) { > - planb_unlock(pb); > - return -EINVAL; > - } > - pb->win.bpp = bpp; > - pb->win.color_fmt = fmt; > - pb->frame_buffer_phys = (unsigned long) v.base; > - pb->win.sheight = v.height; > - pb->win.swidth = v.width; > - pb->picture.depth = pb->win.depth = v.depth; > - pb->win.bpl = pb->win.bpp * pb->win.swidth; > - pb->win.pad = v.bytesperline - pb->win.bpl; > - > - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," > - " bpl %d (+ %d)\n", v.base, v.width,v.height, > - pb->win.bpp, pb->win.bpl, pb->win.pad); > - > - pb->cmd_buff_inited = 0; > - if(pb->overlay) { > - suspend_overlay(pb); > - fill_cmd_buff(pb); > - resume_overlay(pb); > - } > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGFBUF: > - { > - struct video_buffer v; > - > - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); > - > - v.base = (void *)pb->frame_buffer_phys; > - v.height = pb->win.sheight; > - v.width = pb->win.swidth; > - v.depth = pb->win.depth; > - v.bytesperline = pb->win.bpl + pb->win.pad; > - if (copy_to_user(arg, &v, sizeof(v))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCCAPTURE: > - { > - int i; > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - if(i==0) { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); > - > - if (!(pb->overlay)) > - return 0; > - planb_lock(pb); > - pb->overlay = 0; > - overlay_stop(pb); > - planb_unlock(pb); > - } else { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); > - > - if (pb->frame_buffer_phys == 0 || > - pb->win.width == 0 || > - pb->win.height == 0) > - return -EINVAL; > - if (pb->overlay) > - return 0; > - planb_lock(pb); > - pb->overlay = 1; > - if(!(pb->cmd_buff_inited)) > - fill_cmd_buff(pb); > - overlay_start(pb); > - planb_unlock(pb); > - } > - return 0; > - } > - case VIDIOCGCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); > - > - if(copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - v.flags = 0; > - v.tuners = 0; > - v.type = VIDEO_TYPE_CAMERA; > - v.norm = pb->win.norm; > - switch(v.channel) > - { > - case 0: > - strcpy(v.name,"Composite"); > - break; > - case 1: > - strcpy(v.name,"SVHS"); > - break; > - default: > - return -EINVAL; > - break; > - } > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - > - return 0; > - } > - case VIDIOCSCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - if (v.norm != pb->win.norm) { > - int i, maxlines; > - > - switch (v.norm) > - { > - case VIDEO_MODE_PAL: > - case VIDEO_MODE_SECAM: > - maxlines = PLANB_MAXLINES; > - break; > - case VIDEO_MODE_NTSC: > - maxlines = PLANB_NTSC_MAXLINES; > - break; > - default: > - return -EINVAL; > - break; > - } > - planb_lock(pb); > - /* empty the grabbing queue */ > - wait_event(pb->capq, !pb->grabbing); > - pb->maxlines = maxlines; > - pb->win.norm = v.norm; > - /* Stop overlay if running */ > - suspend_overlay(pb); > - for(i = 0; i < MAX_GBUFFERS; i++) > - pb->gnorm_switch[i] = 1; > - /* I know it's an overkill, but.... */ > - fill_cmd_buff(pb); > - /* ok, now init it accordingly */ > - saa_init_regs (pb); > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - } > - > - switch(v.channel) > - { > - case 0: /* Composite */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 3), pb); > - break; > - case 1: /* SVHS */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 4), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - > - return 0; > - } > - case VIDIOCGPICT: > - { > - struct video_picture vp = pb->picture; > - > - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); > - > - switch(pb->win.color_fmt) { > - case PLANB_GRAY: > - vp.palette = VIDEO_PALETTE_GREY; > - case PLANB_COLOUR15: > - vp.palette = VIDEO_PALETTE_RGB555; > - break; > - case PLANB_COLOUR32: > - vp.palette = VIDEO_PALETTE_RGB32; > - break; > - default: > - vp.palette = 0; > - break; > - } > - > - if(copy_to_user(arg,&vp,sizeof(vp))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSPICT: > - { > - struct video_picture vp; > - > - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); > - > - if(copy_from_user(&vp,arg,sizeof(vp))) > - return -EFAULT; > - pb->picture = vp; > - /* Should we do sanity checks here? */ > - saa_set (SAA7196_BRIG, (unsigned char) > - ((pb->picture.brightness) >> 8), pb); > - saa_set (SAA7196_HUEC, (unsigned char) > - ((pb->picture.hue) >> 8) ^ 0x80, pb); > - saa_set (SAA7196_CSAT, (unsigned char) > - ((pb->picture.colour) >> 9), pb); > - saa_set (SAA7196_CONT, (unsigned char) > - ((pb->picture.contrast) >> 9), pb); > - > - return 0; > - } > - case VIDIOCSWIN: > - { > - struct video_window vw; > - struct video_clip clip; > - int i; > - > - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); > - > - if(copy_from_user(&vw,arg,sizeof(vw))) > - return -EFAULT; > - > - planb_lock(pb); > - /* Stop overlay if running */ > - suspend_overlay(pb); > - pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0; > - if (pb->win.x != vw.x || > - pb->win.y != vw.y || > - pb->win.width != vw.width || > - pb->win.height != vw.height || > - !pb->cmd_buff_inited) { > - pb->win.x = vw.x; > - pb->win.y = vw.y; > - pb->win.width = vw.width; > - pb->win.height = vw.height; > - fill_cmd_buff(pb); > - } > - /* Reset clip mask */ > - memset ((void *) pb->mask, 0xff, (pb->maxlines > - * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); > - /* Add any clip rects */ > - for (i = 0; i < vw.clipcount; i++) { > - if (copy_from_user(&clip, vw.clips + i, > - sizeof(struct video_clip))) > - return -EFAULT; > - add_clip(pb, &clip); > - } > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGWIN: > - { > - struct video_window vw; > - > - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); > - > - vw.x=pb->win.x; > - vw.y=pb->win.y; > - vw.width=pb->win.width; > - vw.height=pb->win.height; > - vw.chromakey=0; > - vw.flags=0; > - if(pb->win.interlace) > - vw.flags|=VIDEO_WINDOW_INTERLACE; > - if(copy_to_user(arg,&vw,sizeof(vw))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSYNC: { > - int i; > - > - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); > - > - if(copy_from_user((void *)&i,arg,sizeof(int))) > - return -EFAULT; > - > - IDEBUG("PlanB: sync to frame %d\n", i); > - > - if(i > (MAX_GBUFFERS - 1) || i < 0) > - return -EINVAL; > -chk_grab: > - switch (pb->frame_stat[i]) { > - case GBUFFER_UNUSED: > - return -EINVAL; > - case GBUFFER_GRABBING: > - IDEBUG("PlanB: waiting for grab" > - " done (%d)\n", i); > - interruptible_sleep_on(&pb->capq); > - if(signal_pending(current)) > - return -EINTR; > - goto chk_grab; > - case GBUFFER_DONE: > - pb->frame_stat[i] = GBUFFER_UNUSED; > - break; > - } > - return 0; > - } > - > - case VIDIOCMCAPTURE: > - { > - struct video_mmap vm; > - volatile unsigned int status; > - > - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); > - > - if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) > - return -EFAULT; > - status = pb->frame_stat[vm.frame]; > - if (status != GBUFFER_UNUSED) > - return -EBUSY; > - > - return vgrab(pb, &vm); > - } > - > - case VIDIOCGMBUF: > - { > - int i; > - struct video_mbuf vm; > - > - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); > - > - memset(&vm, 0 , sizeof(vm)); > - vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; > - vm.frames = MAX_GBUFFERS; > - for(i = 0; i<MAX_GBUFFERS; i++) > - vm.offsets[i] = PLANB_MAX_FBUF * i; > - if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCGSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - preg.val = saa_regs[pb->win.norm][preg.addr]; > - if(copy_to_user((void *)arg, (void *)&preg, > - sizeof(preg))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - saa_set (preg.addr, preg.val, pb); > - return 0; > - } > - > - case PLANBIOCGSTAT: > - { > - struct planb_stat_regs pstat; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); > - > - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); > - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); > - pstat.saa_stat0 = saa_status(0, pb); > - pstat.saa_stat1 = saa_status(1, pb); > - > - if(copy_to_user((void *)arg, (void *)&pstat, > - sizeof(pstat))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSMODE: { > - int v; > - > - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - switch(v) > - { > - case PLANB_TV_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] & > - 0x7f), pb); > - break; > - case PLANB_VTR_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] | > - 0x80), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - pb->win.mode = v; > - return 0; > - } > - case PLANBIOCGMODE: { > - int v=pb->win.mode; > - > - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#ifdef PLANB_GSCANLINE > - case PLANBG_GRAB_BPL: { > - int v=pb->gbytes_per_line; > - > - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#endif /* PLANB_GSCANLINE */ > - case PLANB_INTR_DEBUG: { > - int i; > - > - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - > - /* avoid hang ups all together */ > - for (i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->frame_stat[i] == GBUFFER_GRABBING) { > - pb->frame_stat[i] = GBUFFER_DONE; > - } > - } > - if(pb->grabbing) > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return 0; > - } > - case PLANB_INV_REGS: { > - int i; > - struct planb_any_regs any; > - > - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); > - > - if(copy_from_user(&any, arg, sizeof(any))) > - return -EFAULT; > - if(any.offset < 0 || any.offset + any.bytes > 0x400) > - return -EINVAL; > - if(any.bytes > 128) > - return -EINVAL; > - for (i = 0; i < any.bytes; i++) { > - any.data[i] = > - in_8((unsigned char *)pb->planb_base > - + any.offset + i); > - } > - if(copy_to_user(arg,&any,sizeof(any))) > - return -EFAULT; > - return 0; > - } > - default: > - { > - DEBUG("PlanB: Unimplemented IOCTL\n"); > - return -ENOIOCTLCMD; > - } > - /* Some IOCTLs are currently unsupported on PlanB */ > - case VIDIOCGTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); > - goto unimplemented; } > - case VIDIOCSTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); > - goto unimplemented; } > - case VIDIOCSFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); > - goto unimplemented; } > - case VIDIOCGFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); > - goto unimplemented; } > - case VIDIOCKEY: { > - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); > - goto unimplemented; } > - case VIDIOCSAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); > - goto unimplemented; } > - case VIDIOCGAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); > - goto unimplemented; } > -unimplemented: > - DEBUG(" Unimplemented\n"); > - return -ENOIOCTLCMD; > - } > - return 0; > -} > - > -static int planb_mmap(struct vm_area_struct *vma, struct video_device *dev, const char *adr, unsigned long size) > -{ > - int i; > - struct planb *pb = (struct planb *)dev; > - unsigned long start = (unsigned long)adr; > - > - if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) > - return -EINVAL; > - if (!pb->rawbuf) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - for (i = 0; i < pb->rawbuf_size; i++) { > - unsigned long pfn; > - > - pfn = virt_to_phys((void *)pb->rawbuf[i]) >> PAGE_SHIFT; > - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) > - return -EAGAIN; > - start += PAGE_SIZE; > - if (size <= PAGE_SIZE) > - break; > - size -= PAGE_SIZE; > - } > - return 0; > -} > - > -static struct video_device planb_template= > -{ > - .owner = THIS_MODULE, > - .name = PLANB_DEVICE_NAME, > - .type = VID_TYPE_OVERLAY, > - .open = planb_open, > - .close = planb_close, > - .read = planb_read, > - .write = planb_write, > - .ioctl = planb_ioctl, > - .mmap = planb_mmap, /* mmap? */ > -}; > - > -static int init_planb(struct planb *pb) > -{ > - unsigned char saa_rev; > - int i, result; > - > - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); > - /* Simple sanity check */ > - if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { > - printk(KERN_ERR "PlanB: Option(s) invalid\n"); > - return -2; > - } > - pb->win.norm = def_norm; > - pb->win.mode = PLANB_TV_MODE; /* TV mode */ > - pb->win.interlace=1; > - pb->win.x=0; > - pb->win.y=0; > - pb->win.width=768; /* 640 */ > - pb->win.height=576; /* 480 */ > - pb->maxlines=576; > -#if 0 > - btv->win.cropwidth=768; /* 640 */ > - btv->win.cropheight=576; /* 480 */ > - btv->win.cropx=0; > - btv->win.cropy=0; > -#endif > - pb->win.pad=0; > - pb->win.bpp=4; > - pb->win.depth=32; > - pb->win.color_fmt=PLANB_COLOUR32; > - pb->win.bpl=1024*pb->win.bpp; > - pb->win.swidth=1024; > - pb->win.sheight=768; > -#ifdef PLANB_GSCANLINE > - if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE > - || (pb->gbytes_per_line <= 0)) > - return -3; > - else { > - /* page align pb->gbytes_per_line for DMA purpose */ > - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) > - i>>=1; > - pb->gbytes_per_line = i; > - } > -#endif > - pb->tab_size = PLANB_MAXLINES + 40; > - pb->suspend = 0; > - mutex_init(&pb->lock); > - pb->ch1_cmd = 0; > - pb->ch2_cmd = 0; > - pb->mask = 0; > - pb->priv_space = 0; > - pb->offset = 0; > - pb->user = 0; > - pb->overlay = 0; > - init_waitqueue_head(&pb->suspendq); > - pb->cmd_buff_inited = 0; > - pb->frame_buffer_phys = 0; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - saa_rev = (saa_status(0, pb) & 0xf0) >> 4; > - printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", saa_rev); > - /* Initialize the SAA registers in memory and on chip */ > - saa_init_regs (pb); > - > - /* clear interrupt mask */ > - pb->intr_mask = PLANB_CLR_IRQ; > - > - result = request_irq(pb->irq, planb_irq, 0, "PlanB", pb); > - if (result < 0) { > - if (result==-EINVAL) > - printk(KERN_ERR "PlanB: Bad irq number (%d) " > - "or handler\n", (int)pb->irq); > - else if (result==-EBUSY) > - printk(KERN_ERR "PlanB: I don't know why, " > - "but IRQ %d is busy\n", (int)pb->irq); > - return result; > - } > - disable_irq(pb->irq); > - > - /* Now add the template and register the device unit. */ > - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); > - > - pb->picture.brightness=0x90<<8; > - pb->picture.contrast = 0x70 << 8; > - pb->picture.colour = 0x70<<8; > - pb->picture.hue = 0x8000; > - pb->picture.whiteness = 0; > - pb->picture.depth = pb->win.depth; > - > - pb->frame_stat=NULL; > - init_waitqueue_head(&pb->capq); > - for(i=0; i<MAX_GBUFFERS; i++) { > - pb->gbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; > - pb->gwidth[i]=0; > - pb->gheight[i]=0; > - pb->gfmt[i]=0; > - pb->cap_cmd[i]=NULL; > -#ifndef PLANB_GSCANLINE > - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF > - / PAGE_SIZE + 1) + MAX_LNUM * i; > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif > - } > - pb->rawbuf=NULL; > - pb->grabbing=0; > - > - /* enable interrupts */ > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - pb->intr_mask = PLANB_FRM_IRQ; > - enable_irq(pb->irq); > - > - if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0) > - return -1; > - > - return 0; > -} > - > -/* > - * Scan for a PlanB controller, request the irq and map the io memory > - */ > - > -static int find_planb(void) > -{ > - struct planb *pb; > - struct device_node *planb_devices; > - unsigned char dev_fn, confreg, bus; > - unsigned int old_base, new_base; > - unsigned int irq; > - struct pci_dev *pdev; > - int rc; > - > - if (!machine_is(powermac)) > - return 0; > - > - planb_devices = of_find_node_by_name(NULL, "planb"); > - if (planb_devices == 0) { > - planb_num=0; > - printk(KERN_WARNING "PlanB: no device found!\n"); > - return planb_num; > - } > - > - if (planb_devices->next != NULL) > - printk(KERN_ERR "Warning: only using first PlanB device!\n"); > - pb = &planbs[0]; > - planb_num = 1; > - > - if (planb_devices->n_addrs != 1) { > - printk (KERN_WARNING "PlanB: expecting 1 address for planb " > - "(got %d)", planb_devices->n_addrs); > - of_node_put(planb_devices); > - return 0; > - } > - > - if (planb_devices->n_intrs == 0) { > - printk(KERN_WARNING "PlanB: no intrs for device %s\n", > - planb_devices->full_name); > - of_node_put(planb_devices); > - return 0; > - } else { > - irq = planb_devices->intrs[0].line; > - } > - > - /* Initialize PlanB's PCI registers */ > - > - /* There is a bug with the way OF assigns addresses > - to the devices behind the chaos bridge. > - control needs only 0x1000 of space, but decodes only > - the upper 16 bits. It therefore occupies a full 64K. > - OF assigns the planb controller memory within this space; > - so we need to change that here in order to access planb. */ > - > - /* We remap to 0xf1000000 in hope that nobody uses it ! */ > - > - bus = (planb_devices->addrs[0].space >> 16) & 0xff; > - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; > - confreg = planb_devices->addrs[0].space & 0xff; > - old_base = planb_devices->addrs[0].address; > - new_base = 0xf1000000; > - of_node_put(planb_devices); > - > - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " > - "membase 0x%x (base reg. 0x%x)\n", > - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); > - > - pdev = pci_get_bus_and_slot(bus, dev_fn); > - if (!pdev) { > - printk(KERN_ERR "planb: cannot find slot\n"); > - goto err_out; > - } > - > - /* Enable response in memory space, bus mastering, > - use memory write and invalidate */ > - rc = pci_enable_device(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable PCI device %s\n", > - pci_name(pdev)); > - goto err_out; > - } > - rc = pci_set_mwi(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable MWI on PCI device %s\n", > - pci_name(pdev)); > - goto err_out_disable; > - } > - pci_set_master(pdev); > - > - /* Set the new base address */ > - pci_write_config_dword (pdev, confreg, new_base); > - > - planb_regs = (volatile struct planb_registers *) > - ioremap (new_base, 0x400); > - pb->planb_base = planb_regs; > - pb->planb_base_phys = (struct planb_registers *)new_base; > - pb->irq = irq; > - pb->dev = pdev; > - > - return planb_num; > - > -err_out_disable: > - pci_disable_device(pdev); > -err_out: > - /* FIXME handle error */ /* comment moved from pci_find_slot, above */ > - pci_dev_put(pdev); > - return 0; > -} > - > -static void release_planb(void) > -{ > - int i; > - struct planb *pb; > - > - for (i=0;i<planb_num; i++) > - { > - pb=&planbs[i]; > - > - /* stop and flash DMAs unconditionally */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - /* clear and free interrupts */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - free_irq(pb->irq, pb); > - > - /* make sure all allocated memory are freed */ > - planb_prepare_close(pb); > - > - printk(KERN_INFO "PlanB: unregistering with v4l\n"); > - video_unregister_device(&pb->video_dev); > - > - pci_dev_put(pb->dev); > - > - /* note that iounmap() does nothing on the PPC right now */ > - iounmap ((void *)pb->planb_base); > - } > -} > - > -static int __init init_planbs(void) > -{ > - int i; > - > - if (find_planb()<=0) > - return -EIO; > - > - for (i=0; i<planb_num; i++) { > - if (init_planb(&planbs[i])<0) { > - printk(KERN_ERR "PlanB: error registering device %d" > - " with v4l\n", i); > - release_planb(); > - return -EIO; > - } > - printk(KERN_INFO "PlanB: registered device %d with v4l\n", i); > - } > - return 0; > -} > - > -static void __exit exit_planbs(void) > -{ > - release_planb(); > -} > - > -module_init(init_planbs); > -module_exit(exit_planbs); > diff --git a/drivers/media/video/planb.h b/drivers/media/video/planb.h > deleted file mode 100644 > index e21b573..0000000 > --- a/drivers/media/video/planb.h > +++ /dev/null > @@ -1,232 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) > - > - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) > - > - > - 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., 675 Mass Ave, Cambridge, MA 02139, USA. > -*/ > - > -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ > - > -#ifndef _PLANB_H_ > -#define _PLANB_H_ > - > -#ifdef __KERNEL__ > -#include <asm/dbdma.h> > -#include "saa7196.h" > -#endif /* __KERNEL__ */ > - > -#define PLANB_DEVICE_NAME "Apple PlanB Video-In" > -#define PLANB_REV "1.0" > - > -#ifdef __KERNEL__ > -//#define PLANB_GSCANLINE /* use this if apps have the notion of */ > - /* grab buffer scanline */ > -/* This should be safe for both PAL and NTSC */ > -#define PLANB_MAXPIXELS 768 > -#define PLANB_MAXLINES 576 > -#define PLANB_NTSC_MAXLINES 480 > - > -/* Uncomment your preferred norm ;-) */ > -#define PLANB_DEF_NORM VIDEO_MODE_PAL > -//#define PLANB_DEF_NORM VIDEO_MODE_NTSC > -//#define PLANB_DEF_NORM VIDEO_MODE_SECAM > - > -/* fields settings */ > -#define PLANB_GRAY 0x1 /* 8-bit mono? */ > -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ > -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ > -#define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ > - > -/* misc. flags for PlanB DMA operation */ > -#define CH_SYNC 0x1 /* synchronize channels (set by ch1; > - cleared by ch2) */ > -#define FIELD_SYNC 0x2 /* used for the start of each field > - (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ > -#define EVEN_FIELD 0x0 /* even field is detected if unset */ > -#define DMA_ABORT 0x2 /* error or just out of sync if set */ > -#define ODD_FIELD 0x4 /* odd field is detected if set */ > - > -/* for capture operations */ > -#define MAX_GBUFFERS 2 > -/* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ > -#ifdef PLANB_GSCANLINE > -#define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ > -#define TAB_FACTOR (1) > -#else > -#define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ > -#define TAB_FACTOR (2) > -#endif > -#endif /* __KERNEL__ */ > - > -struct planb_saa_regs { > - unsigned char addr; > - unsigned char val; > -}; > - > -struct planb_stat_regs { > - unsigned int ch1_stat; > - unsigned int ch2_stat; > - unsigned char saa_stat0; > - unsigned char saa_stat1; > -}; > - > -struct planb_any_regs { > - unsigned int offset; > - unsigned int bytes; > - unsigned char data[128]; > -}; > - > -/* planb private ioctls */ > -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ > -#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ > -#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ > -#define PLANB_TV_MODE 1 > -#define PLANB_VTR_MODE 2 > -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ > -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ > - > -#ifdef PLANB_GSCANLINE > -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ > -#endif > - > -/* call wake_up_interruptible() with appropriate actions */ > -#define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) > -/* investigate which reg does what */ > -#define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) > - > -#ifdef __KERNEL__ > - > -/* Potentially useful macros */ > -#define PLANB_SET(x) ((x) << 16 | (x)) > -#define PLANB_CLR(x) ((x) << 16) > - > -/* This represents the physical register layout */ > -struct planb_registers { > - volatile struct dbdma_regs ch1; /* 0x00: video in */ > - volatile unsigned int even; /* 0x40: even field setting */ > - volatile unsigned int odd; /* 0x44; odd field setting */ > - unsigned int pad1[14]; /* empty? */ > - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ > - unsigned int pad2[16]; /* 0xc0: empty? */ > - volatile unsigned int reg3; /* 0x100: ???? */ > - volatile unsigned int intr_stat; /* 0x104: irq status */ > -#define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ > -#define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ > -#define PLANB_FRM_IRQ 0x0100 /* end of frame */ > - unsigned int pad3[1]; /* empty? */ > - volatile unsigned int reg5; /* 0x10c: ??? */ > - unsigned int pad4[60]; /* empty? */ > - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ > - char pad5[3]; > - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ > - char pad6[3]; > - volatile unsigned char saa_status; /* SAA7196 status byte */ > - /* There is more unused stuff here */ > -}; > - > -struct planb_window { > - int x, y; > - ushort width, height; > - ushort bpp, bpl, depth, pad; > - ushort swidth, sheight; > - int norm; > - int interlace; > - u32 color_fmt; > - int chromakey; > - int mode; /* used to switch between TV/VTR modes */ > -}; > - > -struct planb_suspend { > - int overlay; > - int frame; > - struct dbdma_cmd cmd; > -}; > - > -struct planb { > - struct video_device video_dev; > - struct video_picture picture; /* Current picture params */ > - struct video_audio audio_dev; /* Current audio params */ > - > - volatile struct planb_registers *planb_base; /* virt base of planb */ > - struct planb_registers *planb_base_phys; /* phys base of planb */ > - void *priv_space; /* Org. alloc. mem for kfree */ > - int user; > - unsigned int tab_size; > - int maxlines; > - struct mutex lock; > - unsigned int irq; /* interrupt number */ > - volatile unsigned int intr_mask; > - struct pci_dev *dev; /* Our PCI device */ > - > - int overlay; /* overlay running? */ > - struct planb_window win; > - unsigned long frame_buffer_phys; /* We need phys for DMA */ > - int offset; /* offset of pixel 1 */ > - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ > - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ > - volatile struct dbdma_cmd *overlay_last1; > - volatile struct dbdma_cmd *overlay_last2; > - unsigned long ch1_cmd_phys; > - volatile unsigned char *mask; /* Clipmask buffer */ > - int suspend; > - wait_queue_head_t suspendq; > - struct planb_suspend suspended; > - int cmd_buff_inited; /* cmd buffer inited? */ > - > - int grabbing; > - unsigned int gcount; > - wait_queue_head_t capq; > - int last_fr; > - int prev_last_fr; > - unsigned char **rawbuf; > - int rawbuf_size; > - int gbuf_idx[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; > - int need_pre_capture[MAX_GBUFFERS]; > -#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ > - int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; > - unsigned int gfmt[MAX_GBUFFERS]; > - int gnorm_switch[MAX_GBUFFERS]; > - volatile unsigned int *frame_stat; > -#define GBUFFER_UNUSED 0x00U > -#define GBUFFER_GRABBING 0x01U > -#define GBUFFER_DONE 0x02U > -#ifdef PLANB_GSCANLINE > - int gbytes_per_line; > -#else > -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ > - /* PLANB_MAXPIXELS changes */ > - int l_fr_addr_idx[MAX_GBUFFERS]; > - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; > - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; > -#endif > -}; > - > -#endif /* __KERNEL__ */ > - > -#endif /* _PLANB_H_ */ > > -- > video4linux-list mailing list > Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/video4linux-list > > -- ------------------------------------------------------------------------- Michel Lanners | " Read Philosophy. Study Art. 23, Rue Paul Henkes | Ask Questions. Make Mistakes. L-1710 Luxembourg | email mlan@cpu.lu | http://www.cpu.lu/~mlan | Learn Always. " -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 6+ messages in thread
* [2.6 patch v2] remove the broken planb driver 2008-07-14 22:05 ` Mich Lanners @ 2008-07-15 9:18 ` Adrian Bunk 0 siblings, 0 replies; 6+ messages in thread From: Adrian Bunk @ 2008-07-15 9:18 UTC (permalink / raw) To: Mich Lanners; +Cc: Benjamin Herrenschmidt, v4l, Mauro Carvalho Chehab On Tue, Jul 15, 2008 at 12:05:07AM +0200, Mich Lanners wrote: > Hi all, > > Adrian Bunk wrote: > >> Oh well, I suppose you can. I never found time to look into it, > >> but I still -do- have a machine somewhere with that HW (though whether > >> it still boots is to be verified). > >> > >> Remove it for now, It's broken anyway. I can always re-submit it if I > >> ever fix it. > > I agree with Ben, let's remove this stuff. > > > Thanks, patch below. > > Adrian, can you also remove drivers/media/video/saa7196.h, which is only > used by PlanB? Sorry for not doing it myself, but I don't even have a > current kernel source at hand to diff..... Thanks. >... Thanks for noticing, updated patch below. cu Adrian <-- snip --> This patch removes the planb driver that had a dependency on BROKEN since May 2004. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Michel Lanners <mlan@cpu.lu> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- drivers/media/video/Kconfig | 11 drivers/media/video/Makefile | 1 drivers/media/video/planb.c | 2309 ---------------------------------- drivers/media/video/planb.h | 232 --- drivers/media/video/saa7196.h | 117 - 5 files changed, 2670 deletions(-) 95c98f684b83b889b228de5089ffd47e65321b01 diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 5ccb0ae..8e362e4 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -474,17 +474,6 @@ config VIDEO_PMS To compile this driver as a module, choose M here: the module will be called pms. -config VIDEO_PLANB - tristate "PlanB Video-In on PowerMac" - depends on PPC_PMAC && VIDEO_V4L1 && BROKEN - help - PlanB is the V4L driver for the PowerMac 7x00/8x00 series video - input hardware. If you want to experiment with this, say Y. - Otherwise, or if you don't understand a word, say N. See - <http://www.cpu.lu/~mlan/linux/dev/planb.html> for more info. - - Saying M will compile this driver as a module (planb). - config VIDEO_BWQCAM tristate "Quickcam BW Video For Linux" depends on PARPORT && VIDEO_V4L1 diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index ecbbfaa..6805468 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -55,7 +55,6 @@ obj-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o zr36016.o obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o obj-$(CONFIG_VIDEO_PMS) += pms.o -obj-$(CONFIG_VIDEO_PLANB) += planb.o obj-$(CONFIG_VIDEO_VINO) += vino.o indycam.o obj-$(CONFIG_VIDEO_STRADIS) += stradis.o obj-$(CONFIG_VIDEO_CPIA) += cpia.o diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c deleted file mode 100644 index 36047d4..0000000 --- a/drivers/media/video/planb.c +++ /dev/null @@ -1,2309 +0,0 @@ -/* - planb - PlanB frame grabber driver - - PlanB is used in the 7x00/8x00 series of PowerMacintosh - Computers as video input DMA controller. - - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) - - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) - - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ - -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/major.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/vmalloc.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/videodev.h> -#include <media/v4l2-common.h> -#include <linux/wait.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/dbdma.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/irq.h> -#include <linux/mutex.h> - -#include "planb.h" -#include "saa7196.h" - -/* Would you mind for some ugly debugging? */ -#if 0 -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ -#else -#define DEBUG(x...) /* Don't debug driver */ -#endif - -#if 0 -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part */ -#else -#define IDEBUG(x...) /* Don't debug interrupt part */ -#endif - -/* Ever seen a Mac with more than 1 of these? */ -#define PLANB_MAX 1 - -static int planb_num; -static struct planb planbs[PLANB_MAX]; -static volatile struct planb_registers *planb_regs; - -static int def_norm = PLANB_DEF_NORM; /* default norm */ -static int video_nr = -1; - -module_param(def_norm, int, 0); -MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)"); -module_param(video_nr, int, 0); -MODULE_LICENSE("GPL"); - - -/* ------------------ PlanB Exported Functions ------------------ */ -static long planb_write(struct video_device *, const char *, unsigned long, int); -static long planb_read(struct video_device *, char *, unsigned long, int); -static int planb_open(struct video_device *, int); -static void planb_close(struct video_device *); -static int planb_ioctl(struct video_device *, unsigned int, void *); -static int planb_init_done(struct video_device *); -static int planb_mmap(struct video_device *, const char *, unsigned long); -static void release_planb(void); -int init_planbs(struct video_init *); - -/* ------------------ PlanB Internal Functions ------------------ */ -static int planb_prepare_open(struct planb *); -static void planb_prepare_close(struct planb *); -static void saa_write_reg(unsigned char, unsigned char); -static unsigned char saa_status(int, struct planb *); -static void saa_set(unsigned char, unsigned char, struct planb *); -static void saa_init_regs(struct planb *); -static int grabbuf_alloc(struct planb *); -static int vgrab(struct planb *, struct video_mmap *); -static void add_clip(struct planb *, struct video_clip *); -static void fill_cmd_buff(struct planb *); -static void cmd_buff(struct planb *); -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb *); -static void overlay_start(struct planb *); -static void overlay_stop(struct planb *); -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, unsigned short, - unsigned int); -static inline void tab_cmd_store(volatile struct dbdma_cmd *, unsigned int, - unsigned int); -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned short, - unsigned short, unsigned int, unsigned int); -static int init_planb(struct planb *); -static int find_planb(void); -static void planb_pre_capture(int, int, struct planb *); -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct dbdma_cmd *, - int, int, int, int, int, struct planb *); -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); -static unsigned int saa_geo_setup(int, int, int, int, struct planb *); -static inline int overlay_is_active(struct planb *); - -/*******************************/ -/* Memory management functions */ -/*******************************/ - -static int grabbuf_alloc(struct planb *pb) -{ - int i, npage; - - npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1) -#ifndef PLANB_GSCANLINE - + MAX_LNUM -#endif /* PLANB_GSCANLINE */ - ); - if ((pb->rawbuf = kmalloc(npage - * sizeof(unsigned long), GFP_KERNEL)) == 0) - return -ENOMEM; - for (i = 0; i < npage; i++) { - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL - |GFP_DMA, 0); - if (!pb->rawbuf[i]) - break; - SetPageReserved(virt_to_page(pb->rawbuf[i])); - } - if (i-- < npage) { - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not allocated\n"); - for (; i > 0; i--) { - ClearPageReserved(virt_to_page(pb->rawbuf[i])); - free_pages((unsigned long)pb->rawbuf[i], 0); - } - kfree(pb->rawbuf); - return -ENOBUFS; - } - pb->rawbuf_size = npage; - return 0; -} - -/*****************************/ -/* Hardware access functions */ -/*****************************/ - -static void saa_write_reg(unsigned char addr, unsigned char val) -{ - planb_regs->saa_addr = addr; eieio(); - planb_regs->saa_regval = val; eieio(); - return; -} - -/* return status byte 0 or 1: */ -static unsigned char saa_status(int byte, struct planb *pb) -{ - saa_regs[pb->win.norm][SAA7196_STDC] = - (saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1); - saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]); - - /* Let's wait 30msec for this one */ - msleep_interruptible(30); - - return (unsigned char)in_8 (&planb_regs->saa_status); -} - -static void saa_set(unsigned char addr, unsigned char val, struct planb *pb) -{ - if(saa_regs[pb->win.norm][addr] != val) { - saa_regs[pb->win.norm][addr] = val; - saa_write_reg (addr, val); - } - return; -} - -static void saa_init_regs(struct planb *pb) -{ - int i; - - for (i = 0; i < SAA7196_NUMREGS; i++) - saa_write_reg (i, saa_regs[pb->win.norm][i]); -} - -static unsigned int saa_geo_setup(int width, int height, int interlace, int bpp, - struct planb *pb) -{ - int ht, norm = pb->win.norm; - - switch(bpp) { - case 2: - /* RGB555+a 1x16-bit + 16-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x3; - break; - case 1: - case 4: - /* RGB888 1x24-bit + 8-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x1; - saa_regs[norm][SAA7196_FMTS] |= 0x2; - break; - default: - return -EINVAL; - } - ht = (interlace ? height / 2 : height); - saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); - saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3) - | (width >> 8 & 0x3); - saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff); - saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3) - | (ht >> 8 & 0x3); - /* feed both fields if interlaced, or else feed only even fields */ - saa_regs[norm][SAA7196_FMTS] = (interlace) ? - (saa_regs[norm][SAA7196_FMTS] & ~0x60) - : (saa_regs[norm][SAA7196_FMTS] | 0x60); - /* transparent mode; extended format enabled */ - saa_regs[norm][SAA7196_DPATH] |= 0x3; - - return 0; -} - -/***************************/ -/* DBDMA support functions */ -/***************************/ - -static inline void planb_dbdma_restart(volatile struct dbdma_regs *ch) -{ - out_le32(&ch->control, PLANB_CLR(RUN)); - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); -} - -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) -{ - int i = 0; - - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { - IDEBUG("PlanB: waiting for DMA to stop\n"); - i++; - } -} - -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned int cmd_dep) -{ - st_le16(&ch->command, command); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, - unsigned int phy_addr, unsigned int cmd_dep) -{ - st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); - st_le16(&ch->req_count, 4); - st_le32(&ch->phy_addr, phy_addr); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned short req_count, - unsigned int phy_addr, unsigned int cmd_dep) -{ - st_le16(&ch->command, command); - st_le16(&ch->req_count, req_count); - st_le32(&ch->phy_addr, phy_addr); - st_le32(&ch->cmd_dep, cmd_dep); -} - -static volatile struct dbdma_cmd *cmd_geo_setup( - volatile struct dbdma_cmd *c1, int width, int height, int interlace, - int bpp, int clip, struct planb *pb) -{ - int norm = pb->win.norm; - - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) - return (volatile struct dbdma_cmd *)NULL; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_FMTS); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_FMTS]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_DPATH); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_DPATH]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_OUTPIX); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_OUTPIX]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_HFILT); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_HFILT]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_OUTLINE); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_OUTLINE]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_VYP); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_VYP]); - return c1; -} - -/******************************/ -/* misc. supporting functions */ -/******************************/ - -static inline void planb_lock(struct planb *pb) -{ - mutex_lock(&pb->lock); -} - -static inline void planb_unlock(struct planb *pb) -{ - mutex_unlock(&pb->lock); -} - -/***************/ -/* Driver Core */ -/***************/ - -static int planb_prepare_open(struct planb *pb) -{ - int i, size; - - /* allocate memory for two plus alpha command buffers (size: max lines, - plus 40 commands handling, plus 1 alignment), plus dummy command buf, - plus clipmask buffer, plus frame grabbing status */ - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 - +MAX_GBUFFERS*sizeof(unsigned int); - if ((pb->priv_space = kzalloc (size, GFP_KERNEL)) == 0) - return -ENOMEM; - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) - DBDMA_ALIGN (pb->priv_space); - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; - for (i = 1; i < MAX_GBUFFERS; i++) { - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; - } - pb->frame_stat=(volatile unsigned int *)(pb->pre_cmd[MAX_GBUFFERS-1] - + PLANB_DUMMY); - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); - - pb->rawbuf = NULL; - pb->rawbuf_size = 0; - pb->grabbing = 0; - for (i = 0; i < MAX_GBUFFERS; i++) { - pb->frame_stat[i] = GBUFFER_UNUSED; - pb->gwidth[i] = 0; - pb->gheight[i] = 0; - pb->gfmt[i] = 0; - pb->gnorm_switch[i] = 0; -#ifndef PLANB_GSCANLINE - pb->lsize[i] = 0; - pb->lnum[i] = 0; -#endif /* PLANB_GSCANLINE */ - } - pb->gcount = 0; - pb->suspend = 0; - pb->last_fr = -999; - pb->prev_last_fr = -999; - - /* Reset DMA controllers */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - return 0; -} - -static void planb_prepare_close(struct planb *pb) -{ - int i; - - /* make sure the dma's are idle */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - /* free kernel memory of command buffers */ - if(pb->priv_space != 0) { - kfree (pb->priv_space); - pb->priv_space = 0; - pb->cmd_buff_inited = 0; - } - if(pb->rawbuf) { - for (i = 0; i < pb->rawbuf_size; i++) { - ClearPageReserved(virt_to_page(pb->rawbuf[i])); - free_pages((unsigned long)pb->rawbuf[i], 0); - } - kfree(pb->rawbuf); - } - pb->rawbuf = NULL; -} - -/*****************************/ -/* overlay support functions */ -/*****************************/ - -static inline int overlay_is_active(struct planb *pb) -{ - unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); - unsigned int caddr = (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); - - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) - && (caddr < (pb->ch1_cmd_phys + size)) - && (caddr >= (unsigned)pb->ch1_cmd_phys); -} - -static void overlay_start(struct planb *pb) -{ - - DEBUG("PlanB: overlay_start()\n"); - - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - - DEBUG("PlanB: presumably, grabbing is in progress...\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - out_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); - planb_dbdma_restart(&pb->planb_base->ch2); - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - eieio(); - pb->prev_last_fr = pb->last_fr; - pb->last_fr = -2; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - IDEBUG("PlanB: became inactive " - "in the mean time... reactivating\n"); - planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } else { - - DEBUG("PlanB: currently idle, so can do whatever\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - st_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); - st_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - planb_dbdma_restart(&pb->planb_base->ch2); - planb_dbdma_restart(&pb->planb_base->ch1); - pb->last_fr = -1; - } - return; -} - -static void overlay_stop(struct planb *pb) -{ - DEBUG("PlanB: overlay_stop()\n"); - - if(pb->last_fr == -1) { - - DEBUG("PlanB: no grabbing, it seems...\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->last_fr = -999; - } else if(pb->last_fr == -2) { - unsigned int cmd_dep; - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); - eieio(); - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); - if(overlay_is_active(pb)) { - - DEBUG("PlanB: overlay is currently active\n"); - - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - if(cmd_dep != pb->ch1_cmd_phys) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } - pb->last_fr = pb->prev_last_fr; - pb->prev_last_fr = -999; - } - return; -} - -static void suspend_overlay(struct planb *pb) -{ - int fr = -1; - struct dbdma_cmd last; - - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); - - if(pb->suspend++) - return; - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - if(pb->last_fr == -2) { - fr = pb->prev_last_fr; - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - } - if(overlay_is_active(pb)) { - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->suspended.overlay = 1; - pb->suspended.frame = fr; - memcpy(&pb->suspended.cmd, &last, sizeof(last)); - return; - } - } - pb->suspended.overlay = 0; - pb->suspended.frame = fr; - memcpy(&pb->suspended.cmd, &last, sizeof(last)); - return; -} - -static void resume_overlay(struct planb *pb) -{ - - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); - - if(pb->suspend > 1) - return; - if(pb->suspended.frame != -1) { - memcpy((void*)pb->last_cmd[pb->suspended.frame], - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); - } - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - goto finish; - } - if(pb->suspended.overlay) { - - DEBUG("PlanB: overlay being resumed\n"); - - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); - /* Set command buffer addresses */ - st_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); - out_le32(&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->overlay_last2)); - /* Start the DMA controller */ - out_le32 (&pb->planb_base->ch2.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - } else if(pb->suspended.frame != -1) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->last_cmd[pb->suspended.frame])); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - } - -finish: - pb->suspend--; - wake_up_interruptible(&pb->suspendq); -} - -static void add_clip(struct planb *pb, struct video_clip *clip) -{ - volatile unsigned char *base; - int xc = clip->x, yc = clip->y; - int wc = clip->width, hc = clip->height; - int ww = pb->win.width, hw = pb->win.height; - int x, y, xtmp1, xtmp2; - - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); - - if(xc < 0) { - wc += xc; - xc = 0; - } - if(yc < 0) { - hc += yc; - yc = 0; - } - if(xc + wc > ww) - wc = ww - xc; - if(wc <= 0) /* Nothing to do */ - return; - if(yc + hc > hw) - hc = hw - yc; - - for (y = yc; y < yc+hc; y++) { - xtmp1=xc>>3; - xtmp2=(xc+wc)>>3; - base = pb->mask + y*96; - if(xc != 0 || wc >= 8) - *(base + xtmp1) &= (unsigned char)(0x00ff & - (0xff00 >> (xc&7))); - for (x = xtmp1 + 1; x < xtmp2; x++) { - *(base + x) = 0; - } - if(xc < (ww & ~0x7)) - *(base + xtmp2) &= (unsigned char)(0x00ff >> - ((xc+wc) & 7)); - } - - return; -} - -static void fill_cmd_buff(struct planb *pb) -{ - int restore = 0; - volatile struct dbdma_cmd last; - - DEBUG("PlanB: fill_cmd_buff()\n"); - - if(pb->overlay_last1 != pb->ch1_cmd) { - restore = 1; - last = *(pb->overlay_last1); - } - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size - * sizeof(struct dbdma_cmd)); - cmd_buff (pb); - if(restore) - *(pb->overlay_last1) = last; - if(pb->suspended.overlay) { - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); - if(jump_addr != pb->ch1_cmd_phys) { - int i; - - DEBUG("PlanB: adjusting ch1's jump address\n"); - - for(i = 0; i < MAX_GBUFFERS; i++) { - if(pb->need_pre_capture[i]) { - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) - goto found; - } else { - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) - goto found; - } - } - - DEBUG("PlanB: not found...\n"); - - goto out; -found: - if(pb->need_pre_capture[i]) - out_le32(&pb->pre_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); - else - out_le32(&pb->cap_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); - } - } -out: - pb->cmd_buff_inited = 1; - - return; -} - -static void cmd_buff(struct planb *pb) -{ - int i, bpp, count, nlines, stepsize, interlace; - unsigned long base, jump, addr_com, addr_dep; - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; - - interlace = pb->win.interlace; - bpp = pb->win.bpp; - count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ? - (pb->win.swidth - pb->win.x) : pb->win.width)); - nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ? - (pb->win.sheight - pb->win.y) : pb->win.height); - - /* Do video in: */ - - /* Preamble commands: */ - addr_com = virt_to_bus(c1); - addr_dep = virt_to_bus(&c1->cmd_dep); - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */ - if((c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, - bpp, 1, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); - return; - } - tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16); - tab_cmd_store(c1++, addr_dep, jump); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - /* (1) wait for field sync to be set */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - /* wait for field sync to be cleared */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - /* if not odd field, wait until field sync is set again */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * (pb->win.bpl - + pb->win.pad) + pb->win.x * bpp); - - if (interlace) { - stepsize = 2; - jump = virt_to_bus(c1 + (nlines + 1) / 2); - } else { - stepsize = 1; - jump = virt_to_bus(c1 + nlines); - } - - /* even field data: */ - for (i=0; i < nlines; i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, - count, base + i * (pb->win.bpl + pb->win.pad), jump); - - /* For non-interlaced, we use even fields only */ - if (!interlace) - goto cmd_tab_data_end; - - /* Resync to odd field */ - /* (2) wait for field sync to be set */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - /* wait for field sync to be cleared */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - /* if not odd field, wait until field sync is set again */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - /* odd field data: */ - jump = virt_to_bus(c1 + nlines / 2); - for (i=1; i < nlines; i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + i * (pb->win.bpl + pb->win.pad), jump); - - /* And jump back to the start */ -cmd_tab_data_end: - pb->overlay_last1 = c1; /* keep a pointer to the last command */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); - - /* Clipmask command buffer */ - - /* Preamble commands: */ - tab_cmd_dbdma(c2++, DBDMA_NOP, 0); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), - PLANB_SET(CH_SYNC)); - /* wait until ch1 asserts ch_sync */ - tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); - /* clear ch_sync asserted by ch1 */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), - PLANB_CLR(CH_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(ODD_FIELD)); - - /* jump to end of even field if appropriate */ - /* this points to (interlace)? pos. C: pos. B */ - jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2): - virt_to_bus(c2 + nlines + 2); - /* if odd field, skip over to odd field clipmasking */ - tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); - - /* even field mask: */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(DMA_ABORT)); - /* this points to pos. B */ - jump = (interlace) ? virt_to_bus(c2 + nlines + 1): - virt_to_bus(c2 + nlines); - base = virt_to_bus(pb->mask); - for (i=0; i < nlines; i += stepsize, c2++) - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, - base + i * 96, jump); - - /* For non-interlaced, we use only even fields */ - if(!interlace) - goto cmd_tab_mask_end; - - /* odd field mask: */ -/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), - PLANB_SET(DMA_ABORT)); - /* this points to pos. B */ - jump = virt_to_bus(c2 + nlines / 2); - base = virt_to_bus(pb->mask); - for (i=1; i < nlines; i += 2, c2++) /* abort if set */ - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, - base + i * 96, jump); - - /* Inform channel 1 and jump back to start */ -cmd_tab_mask_end: - /* ok, I just realized this is kind of flawed. */ - /* this part is reached only after odd field clipmasking. */ - /* wanna clean up? */ - /* wait for field sync to be set */ - /* corresponds to fsync (1) of ch1 */ -/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); - /* restart ch1, meant to clear any dead bit or something */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), - PLANB_CLR(RUN)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), - PLANB_SET(RUN)); - pb->overlay_last2 = c2; /* keep a pointer to the last command */ - /* start over even field clipmasking */ - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); - - eieio(); - return; -} - -/*********************************/ -/* grabdisplay support functions */ -/*********************************/ - -static int palette2fmt[] = { - 0, - PLANB_GRAY, - 0, - 0, - 0, - PLANB_COLOUR32, - PLANB_COLOUR15, - 0, - 0, - 0, - 0, - 0, - 0, - 0, - 0, -}; - -#define PLANB_PALETTE_MAX 15 - -static int vgrab(struct planb *pb, struct video_mmap *mp) -{ - unsigned int fr = mp->frame; - unsigned int format; - - if(pb->rawbuf==NULL) { - int err; - if((err=grabbuf_alloc(pb))) - return err; - } - - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, - mp->width, mp->height, fr); - - if(pb->grabbing >= MAX_GBUFFERS) - return -ENOBUFS; - if(fr > (MAX_GBUFFERS - 1) || fr < 0) - return -EINVAL; - if(mp->height <= 0 || mp->width <= 0) - return -EINVAL; - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) - return -EINVAL; - if((format = palette2fmt[mp->format]) == 0) - return -EINVAL; - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = bpp */ - return -EINVAL; - - planb_lock(pb); - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { - int i; -#ifndef PLANB_GSCANLINE - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] - * pb->gfmt[fr]; - unsigned int nsize = mp->width * mp->height * format; -#endif - - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", - mp->width, mp->height, mp->format); - -#ifndef PLANB_GSCANLINE - if(pb->gnorm_switch[fr]) - nsize = 0; - if (nsize < osize) { - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); - osize -= PAGE_SIZE; - } - } - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] - + pb->lnum[fr]; i++) - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); -#else -/* XXX TODO */ -/* - if(pb->gnorm_switch[fr]) - memset((void *)pb->gbuffer[fr], 0, - pb->gbytes_per_line * pb->gheight[fr]); - else { - if(mp-> - for(i = 0; i < pb->gheight[fr]; i++) { - memset((void *)(pb->gbuffer[fr] - + pb->gbytes_per_line * i - } - } -*/ -#endif - pb->gwidth[fr] = mp->width; - pb->gheight[fr] = mp->height; - pb->gfmt[fr] = format; - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ - pb->need_pre_capture[fr] = 1; - pb->gnorm_switch[fr] = 0; - } else - pb->need_pre_capture[fr] = 0; - pb->frame_stat[fr] = GBUFFER_GRABBING; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); - - planb_dbdma_stop(&pb->planb_base->ch1); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->pre_cmd[fr])); - } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - /* let's be on the safe side. here is not timing critical. */ - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); - } - planb_dbdma_restart(&pb->planb_base->ch1); - pb->last_fr = fr; - } else { - int i; - - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); - - if((pb->last_fr == -1) || ((pb->last_fr == -2) && - overlay_is_active(pb))) { - - IDEBUG("PlanB: overlay is active, grabbing defered\n"); - - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_store(pb->pre_cmd[fr], - virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); - eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->pre_cmd[fr])); - } else { - tab_cmd_store(pb->cap_cmd[fr], - virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->cap_cmd[fr])); - } - for(i = 0; overlay_is_active(pb) && i < 999; i++) - IDEBUG("PlanB: waiting for overlay done\n"); - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); - pb->prev_last_fr = fr; - pb->last_fr = -2; - } else if(pb->last_fr == -2) { - - IDEBUG("PlanB: mixed mode detected, grabbing" - " will be done before activating overlay\n"); - - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); - eieio(); - } else { - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->prev_last_fr] != - pb->gwidth[fr] - || pb->gheight[pb->prev_last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->prev_last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); - eieio(); - } - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - eieio(); - pb->prev_last_fr = fr; - pb->last_fr = -2; - } else { - - IDEBUG("PlanB: active grabbing session detected\n"); - - if(pb->need_pre_capture[fr]) { - - IDEBUG("PlanB: padding pre-capture sequence\n"); - - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); - eieio(); - } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] - || pb->gheight[pb->last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP, 0); - else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); - eieio(); - } - pb->last_fr = fr; - } - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - - IDEBUG("PlanB: became inactive in the mean time..." - "reactivating\n"); - - planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); - planb_dbdma_restart(&pb->planb_base->ch1); - } - } - pb->grabbing++; - planb_unlock(pb); - - return 0; -} - -static void planb_pre_capture(int fr, int bpp, struct planb *pb) -{ - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; - - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered some problems\n"); - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); - return; - } - /* Sync to even field */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - /* For non-interlaced, we use even fields only */ - if (pb->gheight[fr] <= pb->maxlines/2) - goto cmd_tab_data_end; - /* Sync to odd field */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); -cmd_tab_data_end: - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->cap_cmd[fr])); - - eieio(); -} - -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct planb *pb) -{ - int i, bpp, count, nlines, stepsize, interlace; -#ifdef PLANB_GSCANLINE - int scanline; -#else - int nlpp, leftover1; - unsigned long base; -#endif - unsigned long jump; - int pagei; - volatile struct dbdma_cmd *c1; - volatile struct dbdma_cmd *jump_addr; - - c1 = pb->cap_cmd[fr]; - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; - bpp = pb->gfmt[fr]; /* gfmt = bpp */ - count = bpp * pb->gwidth[fr]; - nlines = pb->gheight[fr]; -#ifdef PLANB_GSCANLINE - scanline = pb->gbytes_per_line; -#else - pb->lsize[fr] = count; - pb->lnum[fr] = 0; -#endif - - /* Do video in: */ - - /* Preamble commands: */ - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++; - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); - return (pb->cap_cmd[fr] + 2); - } - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - if (interlace) { - stepsize = 2; - jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2; - } else { - stepsize = 1; - jump_addr = c1 + TAB_FACTOR * nlines; - } - jump = virt_to_bus(jump_addr); - - /* even field data: */ - - pagei = pb->gbuf_idx[fr]; -#ifdef PLANB_GSCANLINE - for (i = 0; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pagei - + i * scanline / PAGE_SIZE]), jump); - } -#else - i = 0; - leftover1 = 0; - do { - int j; - - base = virt_to_bus(pb->rawbuf[pagei]); - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, - count, base + count * j * stepsize + leftover1, jump); - if(i < nlines) { - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; - - if(lov0 == 0) - leftover1 = 0; - else { - if(lov0 >= count) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base - + count * nlpp * stepsize + leftover1, jump); - } else { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] - + count * nlpp * stepsize + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; - } - leftover1 = count * stepsize - lov0; - i += stepsize; - } - } - pagei++; - } while(i < nlines); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); - c1 = jump_addr; -#endif /* PLANB_GSCANLINE */ - - /* For non-interlaced, we use even fields only */ - if (!interlace) - goto cmd_tab_data_end; - - /* Sync to odd field */ - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); - - /* odd field data: */ - jump_addr = c1 + TAB_FACTOR * nlines / 2; - jump = virt_to_bus(jump_addr); -#ifdef PLANB_GSCANLINE - for (i = 1; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pagei - + i * scanline / PAGE_SIZE]), jump); - } -#else - i = 1; - leftover1 = 0; - pagei = pb->gbuf_idx[fr]; - if(nlines <= 1) - goto skip; - do { - int j; - - base = virt_to_bus(pb->rawbuf[pagei]); - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; - if(leftover1 >= count) { - tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + leftover1 - count, jump); - i += stepsize; - } - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, - base + count * (j * stepsize + 1) + leftover1, jump); - if(i < nlines) { - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; - - if(lov0 == 0) - leftover1 = 0; - else { - if(lov0 > count) { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] - + count * (nlpp * stepsize + 1) + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize - - lov0; - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; - i += stepsize; - } - leftover1 = count * stepsize - lov0; - } - } - pagei++; - } while(i < nlines); -skip: - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); - c1 = jump_addr; -#endif /* PLANB_GSCANLINE */ - -cmd_tab_data_end: - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), - (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); - /* stop it */ - tab_cmd_dbdma(c1, DBDMA_STOP, 0); - - eieio(); - return c1; -} - -static irqreturn_t planb_irq(int irq, void *dev_id) -{ - unsigned int stat, astat; - struct planb *pb = (struct planb *)dev_id; - - IDEBUG("PlanB: planb_irq()\n"); - - /* get/clear interrupt status bits */ - eieio(); - stat = in_le32(&pb->planb_base->intr_stat); - astat = stat & pb->intr_mask; - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ - & ~astat & stat & ~PLANB_GEN_IRQ); - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); - - if(astat & PLANB_FRM_IRQ) { - unsigned int fr = stat >> 9; -#ifndef PLANB_GSCANLINE - int i; -#endif - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); - - pb->gcount++; - - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", - pb->grabbing, fr, pb->gcount); -#ifndef PLANB_GSCANLINE - IDEBUG("PlanB: %d * %d bytes are being copied over\n", - pb->lnum[fr], pb->lsize[fr]); - for(i = 0; i < pb->lnum[fr]; i++) { - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; - - memcpy(pb->l_to_addr[fr][i], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], - first); - memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, - pb->l_to_next_size[fr][i]); - } -#endif - pb->frame_stat[fr] = GBUFFER_DONE; - pb->grabbing--; - wake_up_interruptible(&pb->capq); - return IRQ_HANDLED; - } - /* incorrect interrupts? */ - pb->intr_mask = PLANB_CLR_IRQ; - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" - " unconditionally\n"); - return IRQ_HANDLED; -} - -/******************************* - * Device Operations functions * - *******************************/ - -static int planb_open(struct video_device *dev, int mode) -{ - struct planb *pb = (struct planb *)dev; - - if (pb->user == 0) { - int err; - if((err = planb_prepare_open(pb)) != 0) - return err; - } - pb->user++; - - DEBUG("PlanB: device opened\n"); - return 0; -} - -static void planb_close(struct video_device *dev) -{ - struct planb *pb = (struct planb *)dev; - - if(pb->user < 1) /* ??? */ - return; - planb_lock(pb); - if (pb->user == 1) { - if (pb->overlay) { - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - pb->overlay = 0; - } - planb_prepare_close(pb); - } - pb->user--; - planb_unlock(pb); - - DEBUG("PlanB: device closed\n"); -} - -static long planb_read(struct video_device *v, char *buf, unsigned long count, - int nonblock) -{ - DEBUG("planb: read request\n"); - return -EINVAL; -} - -static long planb_write(struct video_device *v, const char *buf, - unsigned long count, int nonblock) -{ - DEBUG("planb: write request\n"); - return -EINVAL; -} - -static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg) -{ - struct planb *pb=(struct planb *)dev; - - switch (cmd) - { - case VIDIOCGCAP: - { - struct video_capability b; - - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); - - strcpy (b.name, pb->video_dev.name); - b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | - VID_TYPE_FRAMERAM | VID_TYPE_SCALES | - VID_TYPE_CAPTURE; - b.channels = 2; /* composite & svhs */ - b.audios = 0; - b.maxwidth = PLANB_MAXPIXELS; - b.maxheight = PLANB_MAXLINES; - b.minwidth = 32; /* wild guess */ - b.minheight = 32; - if (copy_to_user(arg,&b,sizeof(b))) - return -EFAULT; - return 0; - } - case VIDIOCSFBUF: - { - struct video_buffer v; - unsigned short bpp; - unsigned int fmt; - - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); - - if (!capable(CAP_SYS_ADMIN) - || !capable(CAP_SYS_RAWIO)) - return -EPERM; - if (copy_from_user(&v, arg,sizeof(v))) - return -EFAULT; - planb_lock(pb); - switch(v.depth) { - case 8: - bpp = 1; - fmt = PLANB_GRAY; - break; - case 15: - case 16: - bpp = 2; - fmt = PLANB_COLOUR15; - break; - case 24: - case 32: - bpp = 4; - fmt = PLANB_COLOUR32; - break; - default: - planb_unlock(pb); - return -EINVAL; - } - if (bpp * v.width > v.bytesperline) { - planb_unlock(pb); - return -EINVAL; - } - pb->win.bpp = bpp; - pb->win.color_fmt = fmt; - pb->frame_buffer_phys = (unsigned long) v.base; - pb->win.sheight = v.height; - pb->win.swidth = v.width; - pb->picture.depth = pb->win.depth = v.depth; - pb->win.bpl = pb->win.bpp * pb->win.swidth; - pb->win.pad = v.bytesperline - pb->win.bpl; - - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," - " bpl %d (+ %d)\n", v.base, v.width,v.height, - pb->win.bpp, pb->win.bpl, pb->win.pad); - - pb->cmd_buff_inited = 0; - if(pb->overlay) { - suspend_overlay(pb); - fill_cmd_buff(pb); - resume_overlay(pb); - } - planb_unlock(pb); - return 0; - } - case VIDIOCGFBUF: - { - struct video_buffer v; - - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); - - v.base = (void *)pb->frame_buffer_phys; - v.height = pb->win.sheight; - v.width = pb->win.swidth; - v.depth = pb->win.depth; - v.bytesperline = pb->win.bpl + pb->win.pad; - if (copy_to_user(arg, &v, sizeof(v))) - return -EFAULT; - return 0; - } - case VIDIOCCAPTURE: - { - int i; - - if(copy_from_user(&i, arg, sizeof(i))) - return -EFAULT; - if(i==0) { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); - - if (!(pb->overlay)) - return 0; - planb_lock(pb); - pb->overlay = 0; - overlay_stop(pb); - planb_unlock(pb); - } else { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); - - if (pb->frame_buffer_phys == 0 || - pb->win.width == 0 || - pb->win.height == 0) - return -EINVAL; - if (pb->overlay) - return 0; - planb_lock(pb); - pb->overlay = 1; - if(!(pb->cmd_buff_inited)) - fill_cmd_buff(pb); - overlay_start(pb); - planb_unlock(pb); - } - return 0; - } - case VIDIOCGCHAN: - { - struct video_channel v; - - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); - - if(copy_from_user(&v, arg,sizeof(v))) - return -EFAULT; - v.flags = 0; - v.tuners = 0; - v.type = VIDEO_TYPE_CAMERA; - v.norm = pb->win.norm; - switch(v.channel) - { - case 0: - strcpy(v.name,"Composite"); - break; - case 1: - strcpy(v.name,"SVHS"); - break; - default: - return -EINVAL; - break; - } - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - - return 0; - } - case VIDIOCSCHAN: - { - struct video_channel v; - - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); - - if(copy_from_user(&v, arg, sizeof(v))) - return -EFAULT; - - if (v.norm != pb->win.norm) { - int i, maxlines; - - switch (v.norm) - { - case VIDEO_MODE_PAL: - case VIDEO_MODE_SECAM: - maxlines = PLANB_MAXLINES; - break; - case VIDEO_MODE_NTSC: - maxlines = PLANB_NTSC_MAXLINES; - break; - default: - return -EINVAL; - break; - } - planb_lock(pb); - /* empty the grabbing queue */ - wait_event(pb->capq, !pb->grabbing); - pb->maxlines = maxlines; - pb->win.norm = v.norm; - /* Stop overlay if running */ - suspend_overlay(pb); - for(i = 0; i < MAX_GBUFFERS; i++) - pb->gnorm_switch[i] = 1; - /* I know it's an overkill, but.... */ - fill_cmd_buff(pb); - /* ok, now init it accordingly */ - saa_init_regs (pb); - /* restart overlay if it was running */ - resume_overlay(pb); - planb_unlock(pb); - } - - switch(v.channel) - { - case 0: /* Composite */ - saa_set (SAA7196_IOCC, - ((saa_regs[pb->win.norm][SAA7196_IOCC] & - ~7) | 3), pb); - break; - case 1: /* SVHS */ - saa_set (SAA7196_IOCC, - ((saa_regs[pb->win.norm][SAA7196_IOCC] & - ~7) | 4), pb); - break; - default: - return -EINVAL; - break; - } - - return 0; - } - case VIDIOCGPICT: - { - struct video_picture vp = pb->picture; - - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); - - switch(pb->win.color_fmt) { - case PLANB_GRAY: - vp.palette = VIDEO_PALETTE_GREY; - case PLANB_COLOUR15: - vp.palette = VIDEO_PALETTE_RGB555; - break; - case PLANB_COLOUR32: - vp.palette = VIDEO_PALETTE_RGB32; - break; - default: - vp.palette = 0; - break; - } - - if(copy_to_user(arg,&vp,sizeof(vp))) - return -EFAULT; - return 0; - } - case VIDIOCSPICT: - { - struct video_picture vp; - - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); - - if(copy_from_user(&vp,arg,sizeof(vp))) - return -EFAULT; - pb->picture = vp; - /* Should we do sanity checks here? */ - saa_set (SAA7196_BRIG, (unsigned char) - ((pb->picture.brightness) >> 8), pb); - saa_set (SAA7196_HUEC, (unsigned char) - ((pb->picture.hue) >> 8) ^ 0x80, pb); - saa_set (SAA7196_CSAT, (unsigned char) - ((pb->picture.colour) >> 9), pb); - saa_set (SAA7196_CONT, (unsigned char) - ((pb->picture.contrast) >> 9), pb); - - return 0; - } - case VIDIOCSWIN: - { - struct video_window vw; - struct video_clip clip; - int i; - - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); - - if(copy_from_user(&vw,arg,sizeof(vw))) - return -EFAULT; - - planb_lock(pb); - /* Stop overlay if running */ - suspend_overlay(pb); - pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0; - if (pb->win.x != vw.x || - pb->win.y != vw.y || - pb->win.width != vw.width || - pb->win.height != vw.height || - !pb->cmd_buff_inited) { - pb->win.x = vw.x; - pb->win.y = vw.y; - pb->win.width = vw.width; - pb->win.height = vw.height; - fill_cmd_buff(pb); - } - /* Reset clip mask */ - memset ((void *) pb->mask, 0xff, (pb->maxlines - * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); - /* Add any clip rects */ - for (i = 0; i < vw.clipcount; i++) { - if (copy_from_user(&clip, vw.clips + i, - sizeof(struct video_clip))) - return -EFAULT; - add_clip(pb, &clip); - } - /* restart overlay if it was running */ - resume_overlay(pb); - planb_unlock(pb); - return 0; - } - case VIDIOCGWIN: - { - struct video_window vw; - - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); - - vw.x=pb->win.x; - vw.y=pb->win.y; - vw.width=pb->win.width; - vw.height=pb->win.height; - vw.chromakey=0; - vw.flags=0; - if(pb->win.interlace) - vw.flags|=VIDEO_WINDOW_INTERLACE; - if(copy_to_user(arg,&vw,sizeof(vw))) - return -EFAULT; - return 0; - } - case VIDIOCSYNC: { - int i; - - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); - - if(copy_from_user((void *)&i,arg,sizeof(int))) - return -EFAULT; - - IDEBUG("PlanB: sync to frame %d\n", i); - - if(i > (MAX_GBUFFERS - 1) || i < 0) - return -EINVAL; -chk_grab: - switch (pb->frame_stat[i]) { - case GBUFFER_UNUSED: - return -EINVAL; - case GBUFFER_GRABBING: - IDEBUG("PlanB: waiting for grab" - " done (%d)\n", i); - interruptible_sleep_on(&pb->capq); - if(signal_pending(current)) - return -EINTR; - goto chk_grab; - case GBUFFER_DONE: - pb->frame_stat[i] = GBUFFER_UNUSED; - break; - } - return 0; - } - - case VIDIOCMCAPTURE: - { - struct video_mmap vm; - volatile unsigned int status; - - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); - - if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) - return -EFAULT; - status = pb->frame_stat[vm.frame]; - if (status != GBUFFER_UNUSED) - return -EBUSY; - - return vgrab(pb, &vm); - } - - case VIDIOCGMBUF: - { - int i; - struct video_mbuf vm; - - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); - - memset(&vm, 0 , sizeof(vm)); - vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; - vm.frames = MAX_GBUFFERS; - for(i = 0; i<MAX_GBUFFERS; i++) - vm.offsets[i] = PLANB_MAX_FBUF * i; - if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm))) - return -EFAULT; - return 0; - } - - case PLANBIOCGSAAREGS: - { - struct planb_saa_regs preg; - - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); - - if(copy_from_user(&preg, arg, sizeof(preg))) - return -EFAULT; - if(preg.addr >= SAA7196_NUMREGS) - return -EINVAL; - preg.val = saa_regs[pb->win.norm][preg.addr]; - if(copy_to_user((void *)arg, (void *)&preg, - sizeof(preg))) - return -EFAULT; - return 0; - } - - case PLANBIOCSSAAREGS: - { - struct planb_saa_regs preg; - - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); - - if(copy_from_user(&preg, arg, sizeof(preg))) - return -EFAULT; - if(preg.addr >= SAA7196_NUMREGS) - return -EINVAL; - saa_set (preg.addr, preg.val, pb); - return 0; - } - - case PLANBIOCGSTAT: - { - struct planb_stat_regs pstat; - - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); - - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); - pstat.saa_stat0 = saa_status(0, pb); - pstat.saa_stat1 = saa_status(1, pb); - - if(copy_to_user((void *)arg, (void *)&pstat, - sizeof(pstat))) - return -EFAULT; - return 0; - } - - case PLANBIOCSMODE: { - int v; - - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); - - if(copy_from_user(&v, arg, sizeof(v))) - return -EFAULT; - - switch(v) - { - case PLANB_TV_MODE: - saa_set (SAA7196_STDC, - (saa_regs[pb->win.norm][SAA7196_STDC] & - 0x7f), pb); - break; - case PLANB_VTR_MODE: - saa_set (SAA7196_STDC, - (saa_regs[pb->win.norm][SAA7196_STDC] | - 0x80), pb); - break; - default: - return -EINVAL; - break; - } - pb->win.mode = v; - return 0; - } - case PLANBIOCGMODE: { - int v=pb->win.mode; - - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); - - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - return 0; - } -#ifdef PLANB_GSCANLINE - case PLANBG_GRAB_BPL: { - int v=pb->gbytes_per_line; - - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); - - if(copy_to_user(arg,&v,sizeof(v))) - return -EFAULT; - return 0; - } -#endif /* PLANB_GSCANLINE */ - case PLANB_INTR_DEBUG: { - int i; - - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); - - if(copy_from_user(&i, arg, sizeof(i))) - return -EFAULT; - - /* avoid hang ups all together */ - for (i = 0; i < MAX_GBUFFERS; i++) { - if(pb->frame_stat[i] == GBUFFER_GRABBING) { - pb->frame_stat[i] = GBUFFER_DONE; - } - } - if(pb->grabbing) - pb->grabbing--; - wake_up_interruptible(&pb->capq); - return 0; - } - case PLANB_INV_REGS: { - int i; - struct planb_any_regs any; - - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); - - if(copy_from_user(&any, arg, sizeof(any))) - return -EFAULT; - if(any.offset < 0 || any.offset + any.bytes > 0x400) - return -EINVAL; - if(any.bytes > 128) - return -EINVAL; - for (i = 0; i < any.bytes; i++) { - any.data[i] = - in_8((unsigned char *)pb->planb_base - + any.offset + i); - } - if(copy_to_user(arg,&any,sizeof(any))) - return -EFAULT; - return 0; - } - default: - { - DEBUG("PlanB: Unimplemented IOCTL\n"); - return -ENOIOCTLCMD; - } - /* Some IOCTLs are currently unsupported on PlanB */ - case VIDIOCGTUNER: { - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); - goto unimplemented; } - case VIDIOCSTUNER: { - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); - goto unimplemented; } - case VIDIOCSFREQ: { - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); - goto unimplemented; } - case VIDIOCGFREQ: { - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); - goto unimplemented; } - case VIDIOCKEY: { - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); - goto unimplemented; } - case VIDIOCSAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); - goto unimplemented; } - case VIDIOCGAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); - goto unimplemented; } -unimplemented: - DEBUG(" Unimplemented\n"); - return -ENOIOCTLCMD; - } - return 0; -} - -static int planb_mmap(struct vm_area_struct *vma, struct video_device *dev, const char *adr, unsigned long size) -{ - int i; - struct planb *pb = (struct planb *)dev; - unsigned long start = (unsigned long)adr; - - if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) - return -EINVAL; - if (!pb->rawbuf) { - int err; - if((err=grabbuf_alloc(pb))) - return err; - } - for (i = 0; i < pb->rawbuf_size; i++) { - unsigned long pfn; - - pfn = virt_to_phys((void *)pb->rawbuf[i]) >> PAGE_SHIFT; - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) - return -EAGAIN; - start += PAGE_SIZE; - if (size <= PAGE_SIZE) - break; - size -= PAGE_SIZE; - } - return 0; -} - -static struct video_device planb_template= -{ - .owner = THIS_MODULE, - .name = PLANB_DEVICE_NAME, - .type = VID_TYPE_OVERLAY, - .open = planb_open, - .close = planb_close, - .read = planb_read, - .write = planb_write, - .ioctl = planb_ioctl, - .mmap = planb_mmap, /* mmap? */ -}; - -static int init_planb(struct planb *pb) -{ - unsigned char saa_rev; - int i, result; - - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); - /* Simple sanity check */ - if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { - printk(KERN_ERR "PlanB: Option(s) invalid\n"); - return -2; - } - pb->win.norm = def_norm; - pb->win.mode = PLANB_TV_MODE; /* TV mode */ - pb->win.interlace=1; - pb->win.x=0; - pb->win.y=0; - pb->win.width=768; /* 640 */ - pb->win.height=576; /* 480 */ - pb->maxlines=576; -#if 0 - btv->win.cropwidth=768; /* 640 */ - btv->win.cropheight=576; /* 480 */ - btv->win.cropx=0; - btv->win.cropy=0; -#endif - pb->win.pad=0; - pb->win.bpp=4; - pb->win.depth=32; - pb->win.color_fmt=PLANB_COLOUR32; - pb->win.bpl=1024*pb->win.bpp; - pb->win.swidth=1024; - pb->win.sheight=768; -#ifdef PLANB_GSCANLINE - if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE - || (pb->gbytes_per_line <= 0)) - return -3; - else { - /* page align pb->gbytes_per_line for DMA purpose */ - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) - i>>=1; - pb->gbytes_per_line = i; - } -#endif - pb->tab_size = PLANB_MAXLINES + 40; - pb->suspend = 0; - mutex_init(&pb->lock); - pb->ch1_cmd = 0; - pb->ch2_cmd = 0; - pb->mask = 0; - pb->priv_space = 0; - pb->offset = 0; - pb->user = 0; - pb->overlay = 0; - init_waitqueue_head(&pb->suspendq); - pb->cmd_buff_inited = 0; - pb->frame_buffer_phys = 0; - - /* Reset DMA controllers */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - saa_rev = (saa_status(0, pb) & 0xf0) >> 4; - printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", saa_rev); - /* Initialize the SAA registers in memory and on chip */ - saa_init_regs (pb); - - /* clear interrupt mask */ - pb->intr_mask = PLANB_CLR_IRQ; - - result = request_irq(pb->irq, planb_irq, 0, "PlanB", pb); - if (result < 0) { - if (result==-EINVAL) - printk(KERN_ERR "PlanB: Bad irq number (%d) " - "or handler\n", (int)pb->irq); - else if (result==-EBUSY) - printk(KERN_ERR "PlanB: I don't know why, " - "but IRQ %d is busy\n", (int)pb->irq); - return result; - } - disable_irq(pb->irq); - - /* Now add the template and register the device unit. */ - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); - - pb->picture.brightness=0x90<<8; - pb->picture.contrast = 0x70 << 8; - pb->picture.colour = 0x70<<8; - pb->picture.hue = 0x8000; - pb->picture.whiteness = 0; - pb->picture.depth = pb->win.depth; - - pb->frame_stat=NULL; - init_waitqueue_head(&pb->capq); - for(i=0; i<MAX_GBUFFERS; i++) { - pb->gbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; - pb->gwidth[i]=0; - pb->gheight[i]=0; - pb->gfmt[i]=0; - pb->cap_cmd[i]=NULL; -#ifndef PLANB_GSCANLINE - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF - / PAGE_SIZE + 1) + MAX_LNUM * i; - pb->lsize[i] = 0; - pb->lnum[i] = 0; -#endif - } - pb->rawbuf=NULL; - pb->grabbing=0; - - /* enable interrupts */ - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - pb->intr_mask = PLANB_FRM_IRQ; - enable_irq(pb->irq); - - if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0) - return -1; - - return 0; -} - -/* - * Scan for a PlanB controller, request the irq and map the io memory - */ - -static int find_planb(void) -{ - struct planb *pb; - struct device_node *planb_devices; - unsigned char dev_fn, confreg, bus; - unsigned int old_base, new_base; - unsigned int irq; - struct pci_dev *pdev; - int rc; - - if (!machine_is(powermac)) - return 0; - - planb_devices = of_find_node_by_name(NULL, "planb"); - if (planb_devices == 0) { - planb_num=0; - printk(KERN_WARNING "PlanB: no device found!\n"); - return planb_num; - } - - if (planb_devices->next != NULL) - printk(KERN_ERR "Warning: only using first PlanB device!\n"); - pb = &planbs[0]; - planb_num = 1; - - if (planb_devices->n_addrs != 1) { - printk (KERN_WARNING "PlanB: expecting 1 address for planb " - "(got %d)", planb_devices->n_addrs); - of_node_put(planb_devices); - return 0; - } - - if (planb_devices->n_intrs == 0) { - printk(KERN_WARNING "PlanB: no intrs for device %s\n", - planb_devices->full_name); - of_node_put(planb_devices); - return 0; - } else { - irq = planb_devices->intrs[0].line; - } - - /* Initialize PlanB's PCI registers */ - - /* There is a bug with the way OF assigns addresses - to the devices behind the chaos bridge. - control needs only 0x1000 of space, but decodes only - the upper 16 bits. It therefore occupies a full 64K. - OF assigns the planb controller memory within this space; - so we need to change that here in order to access planb. */ - - /* We remap to 0xf1000000 in hope that nobody uses it ! */ - - bus = (planb_devices->addrs[0].space >> 16) & 0xff; - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; - confreg = planb_devices->addrs[0].space & 0xff; - old_base = planb_devices->addrs[0].address; - new_base = 0xf1000000; - of_node_put(planb_devices); - - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " - "membase 0x%x (base reg. 0x%x)\n", - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); - - pdev = pci_get_bus_and_slot(bus, dev_fn); - if (!pdev) { - printk(KERN_ERR "planb: cannot find slot\n"); - goto err_out; - } - - /* Enable response in memory space, bus mastering, - use memory write and invalidate */ - rc = pci_enable_device(pdev); - if (rc) { - printk(KERN_ERR "planb: cannot enable PCI device %s\n", - pci_name(pdev)); - goto err_out; - } - rc = pci_set_mwi(pdev); - if (rc) { - printk(KERN_ERR "planb: cannot enable MWI on PCI device %s\n", - pci_name(pdev)); - goto err_out_disable; - } - pci_set_master(pdev); - - /* Set the new base address */ - pci_write_config_dword (pdev, confreg, new_base); - - planb_regs = (volatile struct planb_registers *) - ioremap (new_base, 0x400); - pb->planb_base = planb_regs; - pb->planb_base_phys = (struct planb_registers *)new_base; - pb->irq = irq; - pb->dev = pdev; - - return planb_num; - -err_out_disable: - pci_disable_device(pdev); -err_out: - /* FIXME handle error */ /* comment moved from pci_find_slot, above */ - pci_dev_put(pdev); - return 0; -} - -static void release_planb(void) -{ - int i; - struct planb *pb; - - for (i=0;i<planb_num; i++) - { - pb=&planbs[i]; - - /* stop and flash DMAs unconditionally */ - planb_dbdma_stop(&pb->planb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); - - /* clear and free interrupts */ - pb->intr_mask = PLANB_CLR_IRQ; - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - free_irq(pb->irq, pb); - - /* make sure all allocated memory are freed */ - planb_prepare_close(pb); - - printk(KERN_INFO "PlanB: unregistering with v4l\n"); - video_unregister_device(&pb->video_dev); - - pci_dev_put(pb->dev); - - /* note that iounmap() does nothing on the PPC right now */ - iounmap ((void *)pb->planb_base); - } -} - -static int __init init_planbs(void) -{ - int i; - - if (find_planb()<=0) - return -EIO; - - for (i=0; i<planb_num; i++) { - if (init_planb(&planbs[i])<0) { - printk(KERN_ERR "PlanB: error registering device %d" - " with v4l\n", i); - release_planb(); - return -EIO; - } - printk(KERN_INFO "PlanB: registered device %d with v4l\n", i); - } - return 0; -} - -static void __exit exit_planbs(void) -{ - release_planb(); -} - -module_init(init_planbs); -module_exit(exit_planbs); diff --git a/drivers/media/video/planb.h b/drivers/media/video/planb.h deleted file mode 100644 index e21b573..0000000 --- a/drivers/media/video/planb.h +++ /dev/null @@ -1,232 +0,0 @@ -/* - planb - PlanB frame grabber driver - - PlanB is used in the 7x00/8x00 series of PowerMacintosh - Computers as video input DMA controller. - - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) - - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) - - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) - - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ - -#ifndef _PLANB_H_ -#define _PLANB_H_ - -#ifdef __KERNEL__ -#include <asm/dbdma.h> -#include "saa7196.h" -#endif /* __KERNEL__ */ - -#define PLANB_DEVICE_NAME "Apple PlanB Video-In" -#define PLANB_REV "1.0" - -#ifdef __KERNEL__ -//#define PLANB_GSCANLINE /* use this if apps have the notion of */ - /* grab buffer scanline */ -/* This should be safe for both PAL and NTSC */ -#define PLANB_MAXPIXELS 768 -#define PLANB_MAXLINES 576 -#define PLANB_NTSC_MAXLINES 480 - -/* Uncomment your preferred norm ;-) */ -#define PLANB_DEF_NORM VIDEO_MODE_PAL -//#define PLANB_DEF_NORM VIDEO_MODE_NTSC -//#define PLANB_DEF_NORM VIDEO_MODE_SECAM - -/* fields settings */ -#define PLANB_GRAY 0x1 /* 8-bit mono? */ -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ -#define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ - -/* misc. flags for PlanB DMA operation */ -#define CH_SYNC 0x1 /* synchronize channels (set by ch1; - cleared by ch2) */ -#define FIELD_SYNC 0x2 /* used for the start of each field - (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ -#define EVEN_FIELD 0x0 /* even field is detected if unset */ -#define DMA_ABORT 0x2 /* error or just out of sync if set */ -#define ODD_FIELD 0x4 /* odd field is detected if set */ - -/* for capture operations */ -#define MAX_GBUFFERS 2 -/* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ -#ifdef PLANB_GSCANLINE -#define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ -#define TAB_FACTOR (1) -#else -#define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ -#define TAB_FACTOR (2) -#endif -#endif /* __KERNEL__ */ - -struct planb_saa_regs { - unsigned char addr; - unsigned char val; -}; - -struct planb_stat_regs { - unsigned int ch1_stat; - unsigned int ch2_stat; - unsigned char saa_stat0; - unsigned char saa_stat1; -}; - -struct planb_any_regs { - unsigned int offset; - unsigned int bytes; - unsigned char data[128]; -}; - -/* planb private ioctls */ -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ -#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ -#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ -#define PLANB_TV_MODE 1 -#define PLANB_VTR_MODE 2 -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ - -#ifdef PLANB_GSCANLINE -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ -#endif - -/* call wake_up_interruptible() with appropriate actions */ -#define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) -/* investigate which reg does what */ -#define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) - -#ifdef __KERNEL__ - -/* Potentially useful macros */ -#define PLANB_SET(x) ((x) << 16 | (x)) -#define PLANB_CLR(x) ((x) << 16) - -/* This represents the physical register layout */ -struct planb_registers { - volatile struct dbdma_regs ch1; /* 0x00: video in */ - volatile unsigned int even; /* 0x40: even field setting */ - volatile unsigned int odd; /* 0x44; odd field setting */ - unsigned int pad1[14]; /* empty? */ - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ - unsigned int pad2[16]; /* 0xc0: empty? */ - volatile unsigned int reg3; /* 0x100: ???? */ - volatile unsigned int intr_stat; /* 0x104: irq status */ -#define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ -#define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ -#define PLANB_FRM_IRQ 0x0100 /* end of frame */ - unsigned int pad3[1]; /* empty? */ - volatile unsigned int reg5; /* 0x10c: ??? */ - unsigned int pad4[60]; /* empty? */ - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ - char pad5[3]; - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ - char pad6[3]; - volatile unsigned char saa_status; /* SAA7196 status byte */ - /* There is more unused stuff here */ -}; - -struct planb_window { - int x, y; - ushort width, height; - ushort bpp, bpl, depth, pad; - ushort swidth, sheight; - int norm; - int interlace; - u32 color_fmt; - int chromakey; - int mode; /* used to switch between TV/VTR modes */ -}; - -struct planb_suspend { - int overlay; - int frame; - struct dbdma_cmd cmd; -}; - -struct planb { - struct video_device video_dev; - struct video_picture picture; /* Current picture params */ - struct video_audio audio_dev; /* Current audio params */ - - volatile struct planb_registers *planb_base; /* virt base of planb */ - struct planb_registers *planb_base_phys; /* phys base of planb */ - void *priv_space; /* Org. alloc. mem for kfree */ - int user; - unsigned int tab_size; - int maxlines; - struct mutex lock; - unsigned int irq; /* interrupt number */ - volatile unsigned int intr_mask; - struct pci_dev *dev; /* Our PCI device */ - - int overlay; /* overlay running? */ - struct planb_window win; - unsigned long frame_buffer_phys; /* We need phys for DMA */ - int offset; /* offset of pixel 1 */ - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ - volatile struct dbdma_cmd *overlay_last1; - volatile struct dbdma_cmd *overlay_last2; - unsigned long ch1_cmd_phys; - volatile unsigned char *mask; /* Clipmask buffer */ - int suspend; - wait_queue_head_t suspendq; - struct planb_suspend suspended; - int cmd_buff_inited; /* cmd buffer inited? */ - - int grabbing; - unsigned int gcount; - wait_queue_head_t capq; - int last_fr; - int prev_last_fr; - unsigned char **rawbuf; - int rawbuf_size; - int gbuf_idx[MAX_GBUFFERS]; - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; - int need_pre_capture[MAX_GBUFFERS]; -#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ - int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; - unsigned int gfmt[MAX_GBUFFERS]; - int gnorm_switch[MAX_GBUFFERS]; - volatile unsigned int *frame_stat; -#define GBUFFER_UNUSED 0x00U -#define GBUFFER_GRABBING 0x01U -#define GBUFFER_DONE 0x02U -#ifdef PLANB_GSCANLINE - int gbytes_per_line; -#else -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ - /* PLANB_MAXPIXELS changes */ - int l_fr_addr_idx[MAX_GBUFFERS]; - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; -#endif -}; - -#endif /* __KERNEL__ */ - -#endif /* _PLANB_H_ */ diff --git a/drivers/media/video/saa7196.h b/drivers/media/video/saa7196.h deleted file mode 100644 index cd4b635..0000000 --- a/drivers/media/video/saa7196.h +++ /dev/null @@ -1,117 +0,0 @@ -/* - Definitions for the Philips SAA7196 digital video decoder, - scaler, and clock generator circuit (DESCpro), as used in - the PlanB video input of the Powermac 7x00/8x00 series. - - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) - - The register defines are shamelessly copied from the meteor - driver out of NetBSD (with permission), - and are copyrighted (c) 1995 Mark Tinguely and Jim Lowe - (Thanks !) - - Additional debugging and coding by Takashi Oe (toe@unlinfo.unl.edu) - - The default values used for PlanB are my mistakes. -*/ - -/* $Id: saa7196.h,v 1.5 1999/03/26 23:28:47 mlan Exp $ */ - -#ifndef _SAA7196_H_ -#define _SAA7196_H_ - -#define SAA7196_NUMREGS 0x31 /* Number of registers (used)*/ -#define NUM_SUPPORTED_NORM 3 /* Number of supported norms by PlanB */ - -/* Decoder part: */ -#define SAA7196_IDEL 0x00 /* Increment delay */ -#define SAA7196_HSB5 0x01 /* H-sync begin; 50 hz */ -#define SAA7196_HSS5 0x02 /* H-sync stop; 50 hz */ -#define SAA7196_HCB5 0x03 /* H-clamp begin; 50 hz */ -#define SAA7196_HCS5 0x04 /* H-clamp stop; 50 hz */ -#define SAA7196_HSP5 0x05 /* H-sync after PHI1; 50 hz */ -#define SAA7196_LUMC 0x06 /* Luminance control */ -#define SAA7196_HUEC 0x07 /* Hue control */ -#define SAA7196_CKTQ 0x08 /* Colour Killer Threshold QAM (PAL, NTSC) */ -#define SAA7196_CKTS 0x09 /* Colour Killer Threshold SECAM */ -#define SAA7196_PALS 0x0a /* PAL switch sensitivity */ -#define SAA7196_SECAMS 0x0b /* SECAM switch sensitivity */ -#define SAA7196_CGAINC 0x0c /* Chroma gain control */ -#define SAA7196_STDC 0x0d /* Standard/Mode control */ -#define SAA7196_IOCC 0x0e /* I/O and Clock Control */ -#define SAA7196_CTRL1 0x0f /* Control #1 */ -#define SAA7196_CTRL2 0x10 /* Control #2 */ -#define SAA7196_CGAINR 0x11 /* Chroma Gain Reference */ -#define SAA7196_CSAT 0x12 /* Chroma Saturation */ -#define SAA7196_CONT 0x13 /* Luminance Contrast */ -#define SAA7196_HSB6 0x14 /* H-sync begin; 60 hz */ -#define SAA7196_HSS6 0x15 /* H-sync stop; 60 hz */ -#define SAA7196_HCB6 0x16 /* H-clamp begin; 60 hz */ -#define SAA7196_HCS6 0x17 /* H-clamp stop; 60 hz */ -#define SAA7196_HSP6 0x18 /* H-sync after PHI1; 60 hz */ -#define SAA7196_BRIG 0x19 /* Luminance Brightness */ - -/* Scaler part: */ -#define SAA7196_FMTS 0x20 /* Formats and sequence */ -#define SAA7196_OUTPIX 0x21 /* Output data pixel/line */ -#define SAA7196_INPIX 0x22 /* Input data pixel/line */ -#define SAA7196_HWS 0x23 /* Horiz. window start */ -#define SAA7196_HFILT 0x24 /* Horiz. filter */ -#define SAA7196_OUTLINE 0x25 /* Output data lines/field */ -#define SAA7196_INLINE 0x26 /* Input data lines/field */ -#define SAA7196_VWS 0x27 /* Vertical window start */ -#define SAA7196_VYP 0x28 /* AFS/vertical Y processing */ -#define SAA7196_VBS 0x29 /* Vertical Bypass start */ -#define SAA7196_VBCNT 0x2a /* Vertical Bypass count */ -#define SAA7196_VBP 0x2b /* veritcal Bypass Polarity */ -#define SAA7196_VLOW 0x2c /* Colour-keying lower V limit */ -#define SAA7196_VHIGH 0x2d /* Colour-keying upper V limit */ -#define SAA7196_ULOW 0x2e /* Colour-keying lower U limit */ -#define SAA7196_UHIGH 0x2f /* Colour-keying upper U limit */ -#define SAA7196_DPATH 0x30 /* Data path setting */ - -/* Initialization default values: */ - -unsigned char saa_regs[NUM_SUPPORTED_NORM][SAA7196_NUMREGS] = { - -/* PAL, 768x576 (no scaling), composite video-in */ -/* Decoder: */ - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x63, 0xff, - 0xfe, 0xf0, 0xfe, 0xe0, 0x20, 0x06, 0x3b, 0x98, - 0x00, 0x59, 0x41, 0x45, 0x34, 0x0a, 0xf4, 0xd2, - 0xe9, 0xa2, -/* Padding */ - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -/* Scaler: */ - 0x72, 0x80, 0x00, 0x03, 0x8d, 0x20, 0x20, 0x12, - 0xa5, 0x12, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, - 0x87 }, - -/* NTSC, 640x480? (no scaling), composite video-in */ -/* Decoder: */ - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x50, 0x00, - 0xf8, 0xf0, 0xfe, 0xe0, 0x00, 0x06, 0x3b, 0x98, - 0x00, 0x2c, 0x3d, 0x40, 0x34, 0x0a, 0xf4, 0xd2, - 0xe9, 0x98, -/* Padding */ - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -/* Scaler: */ - 0x72, 0x80, 0x80, 0x03, 0x89, 0xf0, 0xf0, 0x0d, - 0xa0, 0x0d, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, - 0x87 }, - -/* SECAM, 768x576 (no scaling), composite video-in */ -/* Decoder: */ - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x63, 0xff, - 0xfe, 0xf0, 0xfe, 0xe0, 0x20, 0x07, 0x3b, 0x98, - 0x00, 0x59, 0x41, 0x45, 0x34, 0x0a, 0xf4, 0xd2, - 0xe9, 0xa2, -/* Padding */ - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -/* Scaler: */ - 0x72, 0x80, 0x00, 0x03, 0x8d, 0x20, 0x20, 0x12, - 0xa5, 0x12, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, - 0x87 } - }; - -#endif /* _SAA7196_H_ */ -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-07-15 9:18 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2008-07-08 15:50 Propose removal of the PLANB driver Hans Verkuil
2008-07-09 10:00 ` Adrian Bunk
[not found] ` <1215634133.8970.379.camel@pasglop>
2008-07-14 20:45 ` [2.6 patch] remove the broken planb driver Adrian Bunk
2008-07-14 21:51 ` Hans Verkuil
2008-07-14 22:05 ` Mich Lanners
2008-07-15 9:18 ` [2.6 patch v2] " Adrian Bunk
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