* Micron MT9M111 driver @ 2008-08-02 16:29 Robert Jarzmik 2008-08-02 16:30 ` [PATCH 1/2] Add Micron mt9m111 chip ID in V4L2 identifiers Robert Jarzmik 0 siblings, 1 reply; 6+ messages in thread From: Robert Jarzmik @ 2008-08-02 16:29 UTC (permalink / raw) To: video4linux-list These patches begin the cycle of Micron MT9M111 camera chip support. The driver is quite simple compared to the possibilities of the chip, but provides good ground for video capture with this chip. These patches follow the patch serie about soc_camera and pxa_camera suspend/resume in Guennadi's tree. Happy review. -- Robert -- 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
* [PATCH 1/2] Add Micron mt9m111 chip ID in V4L2 identifiers 2008-08-02 16:29 Micron MT9M111 driver Robert Jarzmik @ 2008-08-02 16:30 ` Robert Jarzmik 2008-08-02 16:30 ` [PATCH 2/2] Add support for Micron MT9M111 camera Robert Jarzmik 0 siblings, 1 reply; 6+ messages in thread From: Robert Jarzmik @ 2008-08-02 16:30 UTC (permalink / raw) To: video4linux-list Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> --- include/media/v4l2-chip-ident.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 41b509b..e8d1e42 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -161,6 +161,7 @@ enum { /* Micron CMOS sensor chips: 45000-45099 */ V4L2_IDENT_MT9M001C12ST = 45000, V4L2_IDENT_MT9M001C12STM = 45005, + V4L2_IDENT_MT9M111 = 45007, V4L2_IDENT_MT9V022IX7ATC = 45010, /* No way to detect "normal" I77ATx */ V4L2_IDENT_MT9V022IX7ATM = 45015, /* and "lead free" IA7ATx chips */ }; -- 1.5.5.3 -- 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
* [PATCH 2/2] Add support for Micron MT9M111 camera. 2008-08-02 16:30 ` [PATCH 1/2] Add Micron mt9m111 chip ID in V4L2 identifiers Robert Jarzmik @ 2008-08-02 16:30 ` Robert Jarzmik 2008-08-02 20:44 ` Guennadi Liakhovetski 0 siblings, 1 reply; 6+ messages in thread From: Robert Jarzmik @ 2008-08-02 16:30 UTC (permalink / raw) To: video4linux-list Adds support for Micron MT9M111 camera chip, with basic features : - view rectangle configurable - some output formats (bayer8, bayer10, rgb565, rgb555, ycbycr) - autoexposure - only highpower mode context used (ie. context B) Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> --- drivers/media/video/Kconfig | 6 + drivers/media/video/Makefile | 1 + drivers/media/video/mt9m111.c | 962 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 969 insertions(+), 0 deletions(-) create mode 100644 drivers/media/video/mt9m111.c diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index d4a6e56..68e7e90 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -938,6 +938,12 @@ config MT9M001_PCA9536_SWITCH Select this if your MT9M001 camera uses a PCA9536 I2C GPIO extender to switch between 8 and 10 bit datawidth modes +config SOC_CAMERA_MT9M111 + tristate "mt9m001 support" + depends on SOC_CAMERA && I2C + help + This driver supports MT9M111 cameras from Micron + config SOC_CAMERA_MT9V022 tristate "mt9v022 support" depends on SOC_CAMERA && I2C diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index bbc6f8b..8b43e31 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -137,6 +137,7 @@ obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o obj-$(CONFIG_SOC_CAMERA) += soc_camera.o obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o +obj-$(CONFIG_SOC_CAMERA_MT9M111) += mt9m111.o obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c new file mode 100644 index 0000000..de03e78 --- /dev/null +++ b/drivers/media/video/mt9m111.c @@ -0,0 +1,962 @@ +/* + * Driver for MT9M111 CMOS Image Sensor from Micron + * + * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/videodev2.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/log2.h> +#include <linux/gpio.h> +#include <linux/delay.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-chip-ident.h> +#include <media/soc_camera.h> + +/* mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin) + * The platform has to define i2c_board_info + * and call i2c_register_board_info() */ + +/* mt9m111: Sensor register addresses */ +#define MT9M111_CHIP_VERSION 0x000 +#define MT9M111_ROW_START 0x001 +#define MT9M111_COLUMN_START 0x002 +#define MT9M111_WINDOW_HEIGHT 0x003 +#define MT9M111_WINDOW_WIDTH 0x004 +#define MT9M111_HORIZONTAL_BLANKING_B 0x005 +#define MT9M111_VERTICAL_BLANKING_B 0x006 +#define MT9M111_HORIZONTAL_BLANKING_A 0x007 +#define MT9M111_VERTICAL_BLANKING_A 0x008 +#define MT9M111_SHUTTER_WIDTH 0x009 +#define MT9M111_ROW_SPEED 0x00a +#define MT9M111_EXTRA_DELAY 0x00b +#define MT9M111_SHUTTER_DELAY 0x00c +#define MT9M111_RESET 0x00d +#define MT9M111_READ_MODE_B 0x020 +#define MT9M111_READ_MODE_A 0x021 +#define MT9M111_FLASH_CONTROL 0x023 +#define MT9M111_GREEN1_GAIN 0x02b +#define MT9M111_BLUE_GAIN 0x02c +#define MT9M111_RED_GAIN 0x02d +#define MT9M111_GREEN2_GAIN 0x02e +#define MT9M111_GLOBAL_GAIN 0x02f +#define MT9M111_CONTEXT_CONTROL 0x0c8 +#define MT9M111_PAGE_MAP 0x0f0 +#define MT9M111_BYTE_WISE_ADDR 0x0f1 + +#define MT9M111_RESET_SYNC_CHANGES (1<<15) +#define MT9M111_RESET_RESTART_BAD_FRAME (1<<9) +#define MT9M111_RESET_SHOW_BAD_FRAMES (1<<8) +#define MT9M111_RESET_RESET_SOC (1<<5) +#define MT9M111_RESET_OUTPUT_DISABLE (1<<4) +#define MT9M111_RESET_CHIP_ENABLE (1<<3) +#define MT9M111_RESET_ANALOG_STANDBY (1<<2) +#define MT9M111_RESET_RESTART_FRAME (1<<1) +#define MT9M111_RESET_RESET_MODE (1<<0) + +#define MT9M111_RMB_MIRROR_COLS (1<<1) +#define MT9M111_RMB_MIRROR_ROWS (1<<0) +#define MT9M111_CTXT_CTRL_RESTART (1<<15) +#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1<<12) +#define MT9M111_CTXT_CTRL_RESIZE_B (1<<10) +#define MT9M111_CTXT_CTRL_CTRL2_B (1<<9) +#define MT9M111_CTXT_CTRL_GAMMA_B (1<<8) +#define MT9M111_CTXT_CTRL_XENON_EN (1<<7) +#define MT9M111_CTXT_CTRL_READ_MODE_B (1<<3) +#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1<<2) +#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1<<1) +#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1<<0) +/* + * mt9m111: Colorpipe register addresses (0x100..0x1ff) + */ +#define MT9M111_OPER_MODE_CTRL 0x106 +#define MT9M111_OUTPUT_FORMAT_CTRL 0x108 +#define MT9M111_REDUCER_XZOOM_B 0x1a0 +#define MT9M111_REDUCER_XSIZE_B 0x1a1 +#define MT9M111_REDUCER_YZOOM_B 0x1a3 +#define MT9M111_REDUCER_YSIZE_B 0x1a4 +#define MT9M111_REDUCER_XZOOM_A 0x1a6 +#define MT9M111_REDUCER_XSIZE_A 0x1a7 +#define MT9M111_REDUCER_YZOOM_A 0x1a9 +#define MT9M111_REDUCER_YSIZE_A 0x1aa + +#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a +#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b + +#define MT9M111_OPMODE_AUTOEXPO_EN (1<<14) + + +#define MT9M111_OUTFMT_PROCESSED_BAYER (1<<14) +#define MT9M111_OUTFMT_BYPASS_IFP (1<<10) +#define MT9M111_OUTFMT_INV_PIX_CLOCK (1<<9) +#define MT9M111_OUTFMT_RGB (1<<8) +#define MT9M111_OUTFMT_RGB565 (0x0 << 6) +#define MT9M111_OUTFMT_RGB555 (0x1 << 6) +#define MT9M111_OUTFMT_RGB444x (0x2 << 6) +#define MT9M111_OUTFMT_RGBx444 (0x3 << 6) +#define MT9M111_OUTFMT_TST_RAMP_OFF (0x0 << 4) +#define MT9M111_OUTFMT_TST_RAMP_COL (0x1 << 4) +#define MT9M111_OUTFMT_TST_RAMP_ROW (0x2 << 4) +#define MT9M111_OUTFMT_TST_RAMP_FRAME (0x3 << 4) +#define MT9M111_OUTFMT_SHIFT_3_UP (1<<3) +#define MT9M111_OUTFMT_AVG_CHROMA (1<<2) +#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1<<1) +#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1<<1) +#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1<<0) +/* + * mt9m111: Camera control register addresses (0x200..0x2ff not implemented) + */ + +#define reg_read(reg) mt9m111_reg_read(icd, MT9M111_##reg) +#define reg_write(reg, val) mt9m111_reg_write(icd, MT9M111_##reg, (val)) +#define reg_set(reg, val) mt9m111_reg_set(icd, MT9M111_##reg, (val)) +#define reg_clear(reg, val) mt9m111_reg_clear(icd, MT9M111_##reg, (val)) + +#define MT9M111_MIN_DARK_ROWS 8 +#define MT9M111_MIN_DARK_COLS 24 +#define MT9M111_MAX_HEIGHT 1024 +#define MT9M111_MAX_WIDTH 1280 + +#define COL_FMT(_name, _depth, _fourcc, _colorspace) \ + { .name = _name, .depth = _depth, .fourcc = _fourcc, \ + .colorspace = _colorspace } +#define RGB_FMT(_name, _depth, _fourcc) \ + COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_SRGB) + +static const struct soc_camera_data_format mt9m111_colour_formats[] = { + COL_FMT("YCrYCb 8 bit", 8, V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_JPEG), + RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565), + RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555), + RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16), + RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8), +}; + +enum mt9m111_context { + HIGHPOWER = 0, + LOWPOWER, +}; + +struct mt9m111 { + struct i2c_client *client; + struct soc_camera_device icd; + int model; /* V4L2_IDENT_MT9M111* codes from v4l2-chip-ident.h */ + enum mt9m111_context context; + unsigned int left, top, width, height; + u32 pixfmt; + unsigned char autoexposure; + unsigned char datawidth; + unsigned int powered:1; + unsigned int hflip:1; + unsigned int vflip:1; + unsigned int swap_rgb_even_odd:1; + unsigned int swap_rgb_red_blue:1; + unsigned int swap_yuv_y_chromas:1; + unsigned int swap_yuv_cb_cr:1; +}; + +static int reg_page_map_set(struct i2c_client *client, const u16 reg) +{ + int ret; + u16 page; + static int lastpage = -1; /* PageMap cache value */ + + page = (reg >> 8); + if (page == lastpage) + return 0; + if (page > 2) + return -EINVAL; + + ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page)); + if (ret >= 0) + lastpage = page; + return ret; +} + +/* + * reg_read: If a read error occurs, returns -1, otherwise register value + */ +static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = mt9m111->client; + int ret; + + ret = reg_page_map_set(client, reg); + if (!ret) + ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff))); + + dev_dbg(&icd->dev, "read reg.%03x -> %04x\n", reg, ret); + return ret; +} + +static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = mt9m111->client; + int ret; + + ret = reg_page_map_set(client, reg); + if (ret >= 0) + ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff), + swab16(data)); + dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); + return ret; +} + +static int mt9m111_reg_set(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + int ret; + + ret = mt9m111_reg_read(icd, reg); + if (ret >= 0) + ret = mt9m111_reg_write(icd, reg, ret | data); + return ret; +} + +static int mt9m111_reg_clear(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + int ret; + + ret = mt9m111_reg_read(icd, reg); + return mt9m111_reg_write(icd, reg, ret & ~data); +} + +static int mt9m111_set_context(struct soc_camera_device *icd, + enum mt9m111_context ctxt) +{ + int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B + | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B + | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B + | MT9M111_CTXT_CTRL_VBLANK_SEL_B + | MT9M111_CTXT_CTRL_HBLANK_SEL_B; + int valA = MT9M111_CTXT_CTRL_RESTART; + + if (ctxt == HIGHPOWER) + return reg_write(CONTEXT_CONTROL, valB); + else + return reg_write(CONTEXT_CONTROL, valA); +} + +static int mt9m111_setup_rect(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0, is_raw_format; + int width = mt9m111->width; + int height = mt9m111->height; + + if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8) + || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16)) + is_raw_format = 1; + else + is_raw_format = 0; + + if (ret >= 0) + ret = reg_write(COLUMN_START, mt9m111->left); + if (ret >= 0) + ret = reg_write(ROW_START, mt9m111->top); + + if (is_raw_format) { + if (ret >= 0) + ret = reg_write(WINDOW_WIDTH, width); + if (ret >= 0) + ret = reg_write(WINDOW_HEIGHT, height); + } else { + if (ret >= 0) + ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH); + if (ret >= 0) + ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT); + if (ret >= 0) + ret = reg_write(REDUCER_XSIZE_B, width); + if (ret >= 0) + ret = reg_write(REDUCER_YSIZE_B, height); + if (ret >= 0) + ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH); + if (ret >= 0) + ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT); + if (ret >= 0) + ret = reg_write(REDUCER_XSIZE_A, width); + if (ret >= 0) + ret = reg_write(REDUCER_YSIZE_A, height); + } + + return ret; +} + +static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt) +{ + int ret; + + ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt); + if (ret >= 0) + ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt); + return ret; +} + +static int mt9m111_setfmt_bayer8(struct soc_camera_device *icd) +{ + return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_PROCESSED_BAYER); +} + +static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd) +{ + + return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_BYPASS_IFP); +} + +static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_rgb_red_blue) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_rgb_even_odd) + val |= MT9M111_OUTFMT_SWAP_RGB_EVEN; + val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_rgb_red_blue) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_rgb_even_odd) + val |= MT9M111_OUTFMT_SWAP_RGB_EVEN; + val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_setfmt_yuv(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_yuv_cb_cr) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_yuv_y_chromas) + val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_enable(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE); + if (ret >= 0) + mt9m111->powered = 1; + return ret; +} + +static int mt9m111_disable(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); + if (ret >= 0) + mt9m111->powered = 0; + return ret; +} + +static int mt9m111_reset(struct soc_camera_device *icd) +{ + int ret; + + ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); + if (ret >= 0) + ret = reg_set(RESET, MT9M111_RESET_RESET_SOC); + if (ret >= 0) + ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE + | MT9M111_RESET_RESET_SOC); + return ret; +} + +static int mt9m111_start_capture(struct soc_camera_device *icd) +{ + return 0; +} + +static int mt9m111_stop_capture(struct soc_camera_device *icd) +{ + return 0; +} + +static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd) +{ + return SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING | + SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH | + SOCAM_DATAWIDTH_8; +} + +static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f) +{ + return 0; +} + +static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + switch (pixfmt) { + case V4L2_PIX_FMT_SBGGR8: + ret = mt9m111_setfmt_bayer8(icd); + break; + case V4L2_PIX_FMT_SBGGR16: + ret = mt9m111_setfmt_bayer10(icd); + break; + case V4L2_PIX_FMT_RGB555: + ret = mt9m111_setfmt_rgb555(icd); + break; + case V4L2_PIX_FMT_RGB565: + ret = mt9m111_setfmt_rgb565(icd); + break; + case V4L2_PIX_FMT_YUYV: + ret = mt9m111_setfmt_yuv(icd); + break; + default: + dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt); + ret = -EINVAL; + } + + if (ret >= 0) + mt9m111->pixfmt = pixfmt; + + return ret; +} + +static int mt9m111_set_fmt_cap(struct soc_camera_device *icd, + __u32 pixfmt, struct v4l2_rect *rect) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + mt9m111->left = rect->left; + mt9m111->top = rect->top; + mt9m111->width = rect->width; + mt9m111->height = rect->height; + + dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n", + __func__, pixfmt, mt9m111->left, mt9m111->top, mt9m111->width, + mt9m111->height); + + ret = mt9m111_setup_rect(icd); + if (ret >= 0) + ret = mt9m111_set_pixfmt(icd, pixfmt); + return ret < 0 ? ret : 0; +} + +static int mt9m111_try_fmt_cap(struct soc_camera_device *icd, + struct v4l2_format *f) +{ + if (f->fmt.pix.height > MT9M111_MAX_HEIGHT) + f->fmt.pix.height = MT9M111_MAX_HEIGHT; + if (f->fmt.pix.width > MT9M111_MAX_WIDTH) + f->fmt.pix.width = MT9M111_MAX_WIDTH; + + return 0; +} + +static int mt9m111_get_chip_id(struct soc_camera_device *icd, + struct v4l2_chip_ident *id) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (id->match_type != V4L2_CHIP_MATCH_I2C_ADDR) + return -EINVAL; + + if (id->match_chip != mt9m111->client->addr) + return -ENODEV; + + id->ident = mt9m111->model; + id->revision = 0; + + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9m111_get_register(struct soc_camera_device *icd, + struct v4l2_register *reg) +{ + int val; + + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) + return -EINVAL; + if (reg->match_chip != mt9m111->client->addr) + return -ENODEV; + + val = mt9m111_reg_read(icd, reg->reg); + reg->val = (u64)val; + + if (reg->val > 0xffff) + return -EIO; + + return 0; +} + +static int mt9m111_set_register(struct soc_camera_device *icd, + struct v4l2_register *reg) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) + return -EINVAL; + + if (reg->match_chip != mt9m111->client->addr) + return -ENODEV; + + if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0) + return -EIO; + + return 0; +} +#endif + +static const struct v4l2_queryctrl mt9m111_controls[] = { + { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Flip Verticaly", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Flip Horizontaly", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, { /* gain = 1/32*val (=>gain=1 if val==32) */ + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain", + .minimum = 0, + .maximum = 63*2*2, + .step = 1, + .default_value = 32, + .flags = V4L2_CTRL_FLAG_SLIDER, + }, { + .id = V4L2_CID_EXPOSURE_AUTO, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Auto Exposure", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1, + } +}; + +static int mt9m111_video_probe(struct soc_camera_device *); +static void mt9m111_video_remove(struct soc_camera_device *); +static int mt9m111_get_control(struct soc_camera_device *, + struct v4l2_control *); +static int mt9m111_set_control(struct soc_camera_device *, + struct v4l2_control *); +static int mt9m111_resume(struct soc_camera_device *icd); +static int mt9m111_init(struct soc_camera_device *icd); +static int mt9m111_release(struct soc_camera_device *icd); + +static struct soc_camera_ops mt9m111_ops = { + .owner = THIS_MODULE, + .probe = mt9m111_video_probe, + .remove = mt9m111_video_remove, + .init = mt9m111_init, + .resume = mt9m111_resume, + .release = mt9m111_release, + .start_capture = mt9m111_start_capture, + .stop_capture = mt9m111_stop_capture, + .set_fmt_cap = mt9m111_set_fmt_cap, + .try_fmt_cap = mt9m111_try_fmt_cap, + .query_bus_param = mt9m111_query_bus_param, + .set_bus_param = mt9m111_set_bus_param, + .controls = mt9m111_controls, + .num_controls = ARRAY_SIZE(mt9m111_controls), + .get_control = mt9m111_get_control, + .set_control = mt9m111_set_control, + .get_chip_id = mt9m111_get_chip_id, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .get_register = mt9m111_get_register, + .set_register = mt9m111_set_register, +#endif +}; + +static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + if (mt9m111->context == HIGHPOWER) { + if (flip) + ret = reg_set(READ_MODE_B, mask); + else + ret = reg_clear(READ_MODE_B, mask); + } else { + if (flip) + ret = reg_set(READ_MODE_A, mask); + else + ret = reg_clear(READ_MODE_A, mask); + } + + return ret; +} + +static int mt9m111_get_global_gain(struct soc_camera_device *icd) +{ + unsigned int data, gain; + + data = reg_read(GLOBAL_GAIN); + if (data >= 0) + gain = ((data & (1 << 10)) * 2) + | ((data & (1 << 9)) * 2) + | (data & 0x2f); + else + gain = data; + + return gain; +} +static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain) +{ + u16 val; + + if (gain > 63*2*2) + return -EINVAL; + + icd->gain = gain; + if ((gain >= 64*2) && (gain < 63*2*2)) + val = (1 << 10) | (1 << 9) | (gain / 4); + else if ((gain >= 64) && (gain < 64*2)) + val = (1<<9) | (gain / 2); + else + val = gain; + + return reg_write(GLOBAL_GAIN, val); +} + +static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + if (on) + ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); + else + ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); + + if (ret >= 0) + mt9m111->autoexposure = on; + + return ret; +} +static int mt9m111_get_control(struct soc_camera_device *icd, + struct v4l2_control *ctrl) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int data; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (mt9m111->context == HIGHPOWER) + data = reg_read(READ_MODE_B); + else + data = reg_read(READ_MODE_A); + + if (data < 0) + return -EIO; + ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS); + break; + case V4L2_CID_HFLIP: + if (mt9m111->context == HIGHPOWER) + data = reg_read(READ_MODE_B); + else + data = reg_read(READ_MODE_A); + + if (data < 0) + return -EIO; + ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS); + break; + case V4L2_CID_GAIN: + data = mt9m111_get_global_gain(icd); + if (data < 0) + return data; + ctrl->value = data; + break; + case V4L2_CID_EXPOSURE_AUTO: + ctrl->value = mt9m111->autoexposure; + break; + } + return 0; +} + +static int mt9m111_set_control(struct soc_camera_device *icd, + struct v4l2_control *ctrl) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + const struct v4l2_queryctrl *qctrl; + int ret = 0; + + qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id); + + if (!qctrl) + return -EINVAL; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + mt9m111->vflip = ctrl->value; + ret = mt9m111_set_flip(icd, ctrl->value, + MT9M111_RMB_MIRROR_ROWS); + break; + case V4L2_CID_HFLIP: + mt9m111->hflip = ctrl->value; + ret = mt9m111_set_flip(icd, ctrl->value, + MT9M111_RMB_MIRROR_COLS); + break; + case V4L2_CID_GAIN: + ret = mt9m111_set_global_gain(icd, ctrl->value); + break; + case V4L2_CID_EXPOSURE_AUTO: + ret = mt9m111_set_autoexposure(icd, ctrl->value); + break; + default: + ret = -EINVAL; + } + + return ret < 0 ? -EIO : 0; +} + +int mt9m111_restore_state(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + mt9m111_set_context(icd, mt9m111->context); + mt9m111_set_pixfmt(icd, mt9m111->pixfmt); + mt9m111_setup_rect(icd); + mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS); + mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS); + mt9m111_set_global_gain(icd, icd->gain); + mt9m111_set_autoexposure(icd, mt9m111->autoexposure); + return 0; +} + +static int mt9m111_resume(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + if (mt9m111->powered) { + ret = mt9m111_enable(icd); + if (ret >= 0) + mt9m111_reset(icd); + if (ret >= 0) + mt9m111_restore_state(icd); + } + return ret; +} + +static int mt9m111_init(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + mt9m111->context = HIGHPOWER; + ret = mt9m111_enable(icd); + if (ret >= 0) + mt9m111_reset(icd); + if (ret >= 0) + mt9m111_set_context(icd, mt9m111->context); + if (ret >= 0) + mt9m111_set_autoexposure(icd, mt9m111->autoexposure); + if (ret < 0) + dev_err(&icd->dev, "mt9m111 init failed: %d\n", ret); + return ret ? -EIO : 0; +} + +static int mt9m111_release(struct soc_camera_device *icd) +{ + int ret; + + ret = mt9m111_disable(icd); + if (ret < 0) + dev_err(&icd->dev, "mt9m111 release failed: %d\n", ret); + + return ret ? -EIO : 0; +} + +/* Interface active, can use i2c. If it fails, it can indeed mean, that + * this wasn't our capture interface, so, we wait for the right one */ +static int mt9m111_video_probe(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + s32 data; + int ret; + + /* We must have a parent by now. And it cannot be a wrong one. + * So this entire test is completely redundant. */ + if (!icd->dev.parent || + to_soc_camera_host(icd->dev.parent)->nr != icd->iface) + return -ENODEV; + + /* Enable the chip */ + ret = mt9m111_enable(icd); + if (ret) + goto ei2c; + ret = mt9m111_reset(icd); + if (ret) + goto ei2c; + + /* Read out the chip version register */ + data = reg_read(CHIP_VERSION); + + /* must be 0x143a */ + switch (data) { + case 0x143a: + mt9m111->model = V4L2_IDENT_MT9M111; + icd->formats = mt9m111_colour_formats; + icd->num_formats = ARRAY_SIZE(mt9m111_colour_formats); + break; + default: + ret = -ENODEV; + dev_err(&icd->dev, + "No MT9M111 chip detected, register read %x\n", data); + goto ei2c; + } + + dev_info(&icd->dev, "Detected a MT9M111 chip ID 0x143a\n"); + + /* Now that we know the model, we can start video */ + ret = soc_camera_video_start(icd); + if (ret) + goto eisis; + + mt9m111->autoexposure = 1; + + mt9m111->swap_rgb_even_odd = 1; + mt9m111->swap_rgb_red_blue = 1; + + return 0; +eisis: +ei2c: + return ret; +} + +static void mt9m111_video_remove(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr, + mt9m111->icd.dev.parent, mt9m111->icd.vdev); + soc_camera_video_stop(&mt9m111->icd); +} + +static int mt9m111_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct mt9m111 *mt9m111; + struct soc_camera_device *icd; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct soc_camera_link *icl = client->dev.platform_data; + int ret; + + if (!icl) { + dev_err(&client->dev, "MT9M111 driver needs platform data\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); + return -EIO; + } + + mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL); + if (!mt9m111) + return -ENOMEM; + + mt9m111->client = client; + i2c_set_clientdata(client, mt9m111); + + /* Second stage probe - when a capture adapter is there */ + icd = &mt9m111->icd; + icd->ops = &mt9m111_ops; + icd->control = &client->dev; + icd->x_min = MT9M111_MIN_DARK_COLS; + icd->y_min = MT9M111_MIN_DARK_ROWS; + icd->x_current = icd->x_min; + icd->y_current = icd->y_min; + icd->width_min = MT9M111_MIN_DARK_ROWS; + icd->width_max = MT9M111_MAX_WIDTH; + icd->height_min = MT9M111_MIN_DARK_COLS; + icd->height_max = MT9M111_MAX_HEIGHT; + icd->y_skip_top = 0; + icd->iface = icl->bus_id; + + ret = soc_camera_device_register(icd); + if (ret) + goto eisdr; + return 0; + +eisdr: + kfree(mt9m111); + return ret; +} + +static int mt9m111_remove(struct i2c_client *client) +{ + struct mt9m111 *mt9m111 = i2c_get_clientdata(client); + soc_camera_device_unregister(&mt9m111->icd); + kfree(mt9m111); + + return 0; +} + +static const struct i2c_device_id mt9m111_id[] = { + { "mt9m111", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mt9m111_id); + +static struct i2c_driver mt9m111_i2c_driver = { + .driver = { + .name = "mt9m111", + }, + .probe = mt9m111_probe, + .remove = mt9m111_remove, + .id_table = mt9m111_id, +}; + +static int __init mt9m111_mod_init(void) +{ + return i2c_add_driver(&mt9m111_i2c_driver); +} + +static void __exit mt9m111_mod_exit(void) +{ + i2c_del_driver(&mt9m111_i2c_driver); +} + +module_init(mt9m111_mod_init); +module_exit(mt9m111_mod_exit); + +MODULE_DESCRIPTION("Micron MT9M111 Camera driver"); +MODULE_AUTHOR("Robert Jarzmik"); +MODULE_LICENSE("GPL"); -- 1.5.5.3 -- 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: [PATCH 2/2] Add support for Micron MT9M111 camera. 2008-08-02 16:30 ` [PATCH 2/2] Add support for Micron MT9M111 camera Robert Jarzmik @ 2008-08-02 20:44 ` Guennadi Liakhovetski 2008-08-03 10:49 ` Robert Jarzmik 0 siblings, 1 reply; 6+ messages in thread From: Guennadi Liakhovetski @ 2008-08-02 20:44 UTC (permalink / raw) To: Robert Jarzmik; +Cc: video4linux-list Nice! Not knowing this specific camera, I can only provide a couple of nitpicks: On Sat, 2 Aug 2008, Robert Jarzmik wrote: > diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c > new file mode 100644 > index 0000000..de03e78 > --- /dev/null > +++ b/drivers/media/video/mt9m111.c > @@ -0,0 +1,962 @@ > +/* > + * Driver for MT9M111 CMOS Image Sensor from Micron > + * > + * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + */ > +#include <linux/videodev2.h> > +#include <linux/slab.h> > +#include <linux/i2c.h> > +#include <linux/log2.h> > +#include <linux/gpio.h> > +#include <linux/delay.h> > + > +#include <media/v4l2-common.h> > +#include <media/v4l2-chip-ident.h> > +#include <media/soc_camera.h> > + > +/* mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin) > + * The platform has to define i2c_board_info > + * and call i2c_register_board_info() */ Please reformat this comment to /* * mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin) * The platform has to define i2c_board_info * and call i2c_register_board_info() */ or similar > + > +/* mt9m111: Sensor register addresses */ > +#define MT9M111_CHIP_VERSION 0x000 > +#define MT9M111_ROW_START 0x001 > +#define MT9M111_COLUMN_START 0x002 > +#define MT9M111_WINDOW_HEIGHT 0x003 > +#define MT9M111_WINDOW_WIDTH 0x004 > +#define MT9M111_HORIZONTAL_BLANKING_B 0x005 > +#define MT9M111_VERTICAL_BLANKING_B 0x006 > +#define MT9M111_HORIZONTAL_BLANKING_A 0x007 > +#define MT9M111_VERTICAL_BLANKING_A 0x008 > +#define MT9M111_SHUTTER_WIDTH 0x009 > +#define MT9M111_ROW_SPEED 0x00a > +#define MT9M111_EXTRA_DELAY 0x00b > +#define MT9M111_SHUTTER_DELAY 0x00c > +#define MT9M111_RESET 0x00d > +#define MT9M111_READ_MODE_B 0x020 > +#define MT9M111_READ_MODE_A 0x021 > +#define MT9M111_FLASH_CONTROL 0x023 > +#define MT9M111_GREEN1_GAIN 0x02b > +#define MT9M111_BLUE_GAIN 0x02c > +#define MT9M111_RED_GAIN 0x02d > +#define MT9M111_GREEN2_GAIN 0x02e > +#define MT9M111_GLOBAL_GAIN 0x02f > +#define MT9M111_CONTEXT_CONTROL 0x0c8 > +#define MT9M111_PAGE_MAP 0x0f0 > +#define MT9M111_BYTE_WISE_ADDR 0x0f1 > + > +#define MT9M111_RESET_SYNC_CHANGES (1<<15) > +#define MT9M111_RESET_RESTART_BAD_FRAME (1<<9) > +#define MT9M111_RESET_SHOW_BAD_FRAMES (1<<8) > +#define MT9M111_RESET_RESET_SOC (1<<5) > +#define MT9M111_RESET_OUTPUT_DISABLE (1<<4) > +#define MT9M111_RESET_CHIP_ENABLE (1<<3) > +#define MT9M111_RESET_ANALOG_STANDBY (1<<2) > +#define MT9M111_RESET_RESTART_FRAME (1<<1) > +#define MT9M111_RESET_RESET_MODE (1<<0) > + > +#define MT9M111_RMB_MIRROR_COLS (1<<1) > +#define MT9M111_RMB_MIRROR_ROWS (1<<0) > +#define MT9M111_CTXT_CTRL_RESTART (1<<15) > +#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1<<12) > +#define MT9M111_CTXT_CTRL_RESIZE_B (1<<10) > +#define MT9M111_CTXT_CTRL_CTRL2_B (1<<9) > +#define MT9M111_CTXT_CTRL_GAMMA_B (1<<8) > +#define MT9M111_CTXT_CTRL_XENON_EN (1<<7) > +#define MT9M111_CTXT_CTRL_READ_MODE_B (1<<3) > +#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1<<2) > +#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1<<1) > +#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1<<0) > +/* > + * mt9m111: Colorpipe register addresses (0x100..0x1ff) > + */ > +#define MT9M111_OPER_MODE_CTRL 0x106 > +#define MT9M111_OUTPUT_FORMAT_CTRL 0x108 > +#define MT9M111_REDUCER_XZOOM_B 0x1a0 > +#define MT9M111_REDUCER_XSIZE_B 0x1a1 > +#define MT9M111_REDUCER_YZOOM_B 0x1a3 > +#define MT9M111_REDUCER_YSIZE_B 0x1a4 > +#define MT9M111_REDUCER_XZOOM_A 0x1a6 > +#define MT9M111_REDUCER_XSIZE_A 0x1a7 > +#define MT9M111_REDUCER_YZOOM_A 0x1a9 > +#define MT9M111_REDUCER_YSIZE_A 0x1aa > + > +#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a > +#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b > + > +#define MT9M111_OPMODE_AUTOEXPO_EN (1<<14) > + > + > +#define MT9M111_OUTFMT_PROCESSED_BAYER (1<<14) > +#define MT9M111_OUTFMT_BYPASS_IFP (1<<10) > +#define MT9M111_OUTFMT_INV_PIX_CLOCK (1<<9) > +#define MT9M111_OUTFMT_RGB (1<<8) > +#define MT9M111_OUTFMT_RGB565 (0x0 << 6) > +#define MT9M111_OUTFMT_RGB555 (0x1 << 6) > +#define MT9M111_OUTFMT_RGB444x (0x2 << 6) > +#define MT9M111_OUTFMT_RGBx444 (0x3 << 6) > +#define MT9M111_OUTFMT_TST_RAMP_OFF (0x0 << 4) > +#define MT9M111_OUTFMT_TST_RAMP_COL (0x1 << 4) > +#define MT9M111_OUTFMT_TST_RAMP_ROW (0x2 << 4) > +#define MT9M111_OUTFMT_TST_RAMP_FRAME (0x3 << 4) > +#define MT9M111_OUTFMT_SHIFT_3_UP (1<<3) > +#define MT9M111_OUTFMT_AVG_CHROMA (1<<2) > +#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1<<1) > +#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1<<1) > +#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1<<0) Please, add spaces around the "<<" in all defines above (except where they are already there, of course:-)) [snip] > +#define COL_FMT(_name, _depth, _fourcc, _colorspace) \ > + { .name = _name, .depth = _depth, .fourcc = _fourcc, \ > + .colorspace = _colorspace } > +#define RGB_FMT(_name, _depth, _fourcc) \ > + COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_SRGB) > + > +static const struct soc_camera_data_format mt9m111_colour_formats[] = { > + COL_FMT("YCrYCb 8 bit", 8, V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_JPEG), > + RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565), > + RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555), > + RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16), > + RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8), > +}; This is where you would add all those swapped pixel formats. > +static int mt9m111_enable(struct soc_camera_device *icd) > +{ > + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); > + int ret; > + > + ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE); > + if (ret >= 0) > + mt9m111->powered = 1; > + return ret; > +} > + > +static int mt9m111_disable(struct soc_camera_device *icd) > +{ > + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); > + int ret; > + > + ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); > + if (ret >= 0) > + mt9m111->powered = 0; > + return ret; > +} > + > +static int mt9m111_reset(struct soc_camera_device *icd) > +{ > + int ret; > + > + ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); > + if (ret >= 0) > + ret = reg_set(RESET, MT9M111_RESET_RESET_SOC); > + if (ret >= 0) > + ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE > + | MT9M111_RESET_RESET_SOC); > + return ret; > +} > + > +static int mt9m111_start_capture(struct soc_camera_device *icd) > +{ > + return 0; > +} > + > +static int mt9m111_stop_capture(struct soc_camera_device *icd) > +{ > + return 0; > +} Is it really a good idea to keep the camera active all the time? Maybe only call enable / disable here, not on init / release? [snip] > +static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt) > +{ > + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); > + int ret = 0; > + > + switch (pixfmt) { > + case V4L2_PIX_FMT_SBGGR8: > + ret = mt9m111_setfmt_bayer8(icd); > + break; > + case V4L2_PIX_FMT_SBGGR16: > + ret = mt9m111_setfmt_bayer10(icd); > + break; > + case V4L2_PIX_FMT_RGB555: > + ret = mt9m111_setfmt_rgb555(icd); > + break; > + case V4L2_PIX_FMT_RGB565: > + ret = mt9m111_setfmt_rgb565(icd); > + break; > + case V4L2_PIX_FMT_YUYV: > + ret = mt9m111_setfmt_yuv(icd); > + break; > + default: > + dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt); > + ret = -EINVAL; > + } > + > + if (ret >= 0) > + mt9m111->pixfmt = pixfmt; > + > + return ret; > +} And here you would support a few more formats. [snip] > +static const struct v4l2_queryctrl mt9m111_controls[] = { > + { > + .id = V4L2_CID_VFLIP, > + .type = V4L2_CTRL_TYPE_BOOLEAN, > + .name = "Flip Verticaly", > + .minimum = 0, > + .maximum = 1, > + .step = 1, > + .default_value = 0, > + }, { > + .id = V4L2_CID_HFLIP, > + .type = V4L2_CTRL_TYPE_BOOLEAN, > + .name = "Flip Horizontaly", > + .minimum = 0, > + .maximum = 1, > + .step = 1, > + .default_value = 0, > + }, { /* gain = 1/32*val (=>gain=1 if val==32) */ > + .id = V4L2_CID_GAIN, > + .type = V4L2_CTRL_TYPE_INTEGER, > + .name = "Gain", > + .minimum = 0, > + .maximum = 63*2*2, > + .step = 1, > + .default_value = 32, > + .flags = V4L2_CTRL_FLAG_SLIDER, Come on, be generous, add a couple of spaces around that multiplication above. [snip] > +static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain) > +{ > + u16 val; > + > + if (gain > 63*2*2) > + return -EINVAL; > + > + icd->gain = gain; > + if ((gain >= 64*2) && (gain < 63*2*2)) > + val = (1 << 10) | (1 << 9) | (gain / 4); > + else if ((gain >= 64) && (gain < 64*2)) > + val = (1<<9) | (gain / 2); > + else > + val = gain; > + > + return reg_write(GLOBAL_GAIN, val); > +} And here too, please. [snip] > +/* Interface active, can use i2c. If it fails, it can indeed mean, that > + * this wasn't our capture interface, so, we wait for the right one */ Reformat the comment, please. Thanks Guennadi --- Guennadi Liakhovetski -- 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: [PATCH 2/2] Add support for Micron MT9M111 camera. 2008-08-02 20:44 ` Guennadi Liakhovetski @ 2008-08-03 10:49 ` Robert Jarzmik 2008-08-11 21:56 ` [PATCH] " Robert Jarzmik 0 siblings, 1 reply; 6+ messages in thread From: Robert Jarzmik @ 2008-08-03 10:49 UTC (permalink / raw) To: Guennadi Liakhovetski; +Cc: video4linux-list Guennadi Liakhovetski <g.liakhovetski@gmx.de> writes: > Nice! Not knowing this specific camera, I can only provide a couple of > nitpicks: > Please reformat this comment to > > /* > * mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin) > * The platform has to define i2c_board_info > * and call i2c_register_board_info() > */ OK for next submit. >> +#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1<<0) > > Please, add spaces around the "<<" in all defines above (except where they > are already there, of course:-)) OK for next submit. > >> +static const struct soc_camera_data_format mt9m111_colour_formats[] = { >> + COL_FMT("YCrYCb 8 bit", 8, V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_JPEG), >> + RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565), >> + RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555), >> + RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16), >> + RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8), >> +}; > > This is where you would add all those swapped pixel formats. Let's finish the dicussion in the other thread "[RFC] soc-camera: endianness between camera and its host". > Is it really a good idea to keep the camera active all the time? Maybe > only call enable / disable here, not on init / release? Well, I think so. The idea here is the camera evaluates its environment to adjust its internal gain values. This a kind of PLL which provides Automatic White Balance, Automatic Gamma, Automatic Defect Correction. So, my idea is that once a user opens /dev/videoX, the camera gets activated and calculates the values. In that case, when he submits buffers to the V4L2 stack, the camera is really ready. But I can change that to activate the camera only on capture, I'm not very set on this. The user can start capturing, and then wait a couple of seconds for the camera to settle. So what do you think, should I move camera activation into start_capture / stop_capture ? >> + .maximum = 63*2*2, >> + .step = 1, >> + .default_value = 32, >> + .flags = V4L2_CTRL_FLAG_SLIDER, > > Come on, be generous, add a couple of spaces around that multiplication > above. OK for next submit. > > [snip] >> + if ((gain >= 64*2) && (gain < 63*2*2)) >> + val = (1 << 10) | (1 << 9) | (gain / 4); >> + else if ((gain >= 64) && (gain < 64*2)) > And here too, please. OK for next submit. > > [snip] > >> +/* Interface active, can use i2c. If it fails, it can indeed mean, that >> + * this wasn't our capture interface, so, we wait for the right one */ > > Reformat the comment, please. OK for next submit. -- Robert -- 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
* [PATCH] Add support for Micron MT9M111 camera. 2008-08-03 10:49 ` Robert Jarzmik @ 2008-08-11 21:56 ` Robert Jarzmik 0 siblings, 0 replies; 6+ messages in thread From: Robert Jarzmik @ 2008-08-11 21:56 UTC (permalink / raw) To: g.liakhovetski; +Cc: video4linux-list Adds support for Micron MT9M111 camera chip, with basic features : - view rectangle configurable - some output formats (bayer8, bayer10, rgb565, rgb555, ycbycr) - autoexposure - only highpower mode context used (ie. context B) Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> --- drivers/media/video/Kconfig | 6 + drivers/media/video/Makefile | 1 + drivers/media/video/mt9m111.c | 960 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 967 insertions(+), 0 deletions(-) create mode 100644 drivers/media/video/mt9m111.c diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index d4a6e56..68e7e90 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -938,6 +938,12 @@ config MT9M001_PCA9536_SWITCH Select this if your MT9M001 camera uses a PCA9536 I2C GPIO extender to switch between 8 and 10 bit datawidth modes +config SOC_CAMERA_MT9M111 + tristate "mt9m001 support" + depends on SOC_CAMERA && I2C + help + This driver supports MT9M111 cameras from Micron + config SOC_CAMERA_MT9V022 tristate "mt9v022 support" depends on SOC_CAMERA && I2C diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index bbc6f8b..8b43e31 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -137,6 +137,7 @@ obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o obj-$(CONFIG_SOC_CAMERA) += soc_camera.o obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o +obj-$(CONFIG_SOC_CAMERA_MT9M111) += mt9m111.o obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c new file mode 100644 index 0000000..0c88e5d --- /dev/null +++ b/drivers/media/video/mt9m111.c @@ -0,0 +1,960 @@ +/* + * Driver for MT9M111 CMOS Image Sensor from Micron + * + * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/videodev2.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/log2.h> +#include <linux/gpio.h> +#include <linux/delay.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-chip-ident.h> +#include <media/soc_camera.h> + +/* + * mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin) + * The platform has to define i2c_board_info and call i2c_register_board_info() + */ + +/* mt9m111: Sensor register addresses */ +#define MT9M111_CHIP_VERSION 0x000 +#define MT9M111_ROW_START 0x001 +#define MT9M111_COLUMN_START 0x002 +#define MT9M111_WINDOW_HEIGHT 0x003 +#define MT9M111_WINDOW_WIDTH 0x004 +#define MT9M111_HORIZONTAL_BLANKING_B 0x005 +#define MT9M111_VERTICAL_BLANKING_B 0x006 +#define MT9M111_HORIZONTAL_BLANKING_A 0x007 +#define MT9M111_VERTICAL_BLANKING_A 0x008 +#define MT9M111_SHUTTER_WIDTH 0x009 +#define MT9M111_ROW_SPEED 0x00a +#define MT9M111_EXTRA_DELAY 0x00b +#define MT9M111_SHUTTER_DELAY 0x00c +#define MT9M111_RESET 0x00d +#define MT9M111_READ_MODE_B 0x020 +#define MT9M111_READ_MODE_A 0x021 +#define MT9M111_FLASH_CONTROL 0x023 +#define MT9M111_GREEN1_GAIN 0x02b +#define MT9M111_BLUE_GAIN 0x02c +#define MT9M111_RED_GAIN 0x02d +#define MT9M111_GREEN2_GAIN 0x02e +#define MT9M111_GLOBAL_GAIN 0x02f +#define MT9M111_CONTEXT_CONTROL 0x0c8 +#define MT9M111_PAGE_MAP 0x0f0 +#define MT9M111_BYTE_WISE_ADDR 0x0f1 + +#define MT9M111_RESET_SYNC_CHANGES (1 << 15) +#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9) +#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8) +#define MT9M111_RESET_RESET_SOC (1 << 5) +#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4) +#define MT9M111_RESET_CHIP_ENABLE (1 << 3) +#define MT9M111_RESET_ANALOG_STANDBY (1 << 2) +#define MT9M111_RESET_RESTART_FRAME (1 << 1) +#define MT9M111_RESET_RESET_MODE (1 << 0) + +#define MT9M111_RMB_MIRROR_COLS (1 << 1) +#define MT9M111_RMB_MIRROR_ROWS (1 << 0) +#define MT9M111_CTXT_CTRL_RESTART (1 << 15) +#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12) +#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10) +#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9) +#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8) +#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7) +#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3) +#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2) +#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1) +#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0) +/* + * mt9m111: Colorpipe register addresses (0x100..0x1ff) + */ +#define MT9M111_OPER_MODE_CTRL 0x106 +#define MT9M111_OUTPUT_FORMAT_CTRL 0x108 +#define MT9M111_REDUCER_XZOOM_B 0x1a0 +#define MT9M111_REDUCER_XSIZE_B 0x1a1 +#define MT9M111_REDUCER_YZOOM_B 0x1a3 +#define MT9M111_REDUCER_YSIZE_B 0x1a4 +#define MT9M111_REDUCER_XZOOM_A 0x1a6 +#define MT9M111_REDUCER_XSIZE_A 0x1a7 +#define MT9M111_REDUCER_YZOOM_A 0x1a9 +#define MT9M111_REDUCER_YSIZE_A 0x1aa + +#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a +#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b + +#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14) + + +#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14) +#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10) +#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9) +#define MT9M111_OUTFMT_RGB (1 << 8) +#define MT9M111_OUTFMT_RGB565 (0x0 << 6) +#define MT9M111_OUTFMT_RGB555 (0x1 << 6) +#define MT9M111_OUTFMT_RGB444x (0x2 << 6) +#define MT9M111_OUTFMT_RGBx444 (0x3 << 6) +#define MT9M111_OUTFMT_TST_RAMP_OFF (0x0 << 4) +#define MT9M111_OUTFMT_TST_RAMP_COL (0x1 << 4) +#define MT9M111_OUTFMT_TST_RAMP_ROW (0x2 << 4) +#define MT9M111_OUTFMT_TST_RAMP_FRAME (0x3 << 4) +#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3) +#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2) +#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1 << 1) +#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1 << 1) +#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1 << 0) +/* + * mt9m111: Camera control register addresses (0x200..0x2ff not implemented) + */ + +#define reg_read(reg) mt9m111_reg_read(icd, MT9M111_##reg) +#define reg_write(reg, val) mt9m111_reg_write(icd, MT9M111_##reg, (val)) +#define reg_set(reg, val) mt9m111_reg_set(icd, MT9M111_##reg, (val)) +#define reg_clear(reg, val) mt9m111_reg_clear(icd, MT9M111_##reg, (val)) + +#define MT9M111_MIN_DARK_ROWS 8 +#define MT9M111_MIN_DARK_COLS 24 +#define MT9M111_MAX_HEIGHT 1024 +#define MT9M111_MAX_WIDTH 1280 + +#define COL_FMT(_name, _depth, _fourcc, _colorspace) \ + { .name = _name, .depth = _depth, .fourcc = _fourcc, \ + .colorspace = _colorspace } +#define RGB_FMT(_name, _depth, _fourcc) \ + COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_SRGB) + +static const struct soc_camera_data_format mt9m111_colour_formats[] = { + COL_FMT("YCrYCb 8 bit", 8, V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_JPEG), + RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565), + RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555), + RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16), + RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8), +}; + +enum mt9m111_context { + HIGHPOWER = 0, + LOWPOWER, +}; + +struct mt9m111 { + struct i2c_client *client; + struct soc_camera_device icd; + int model; /* V4L2_IDENT_MT9M111* codes from v4l2-chip-ident.h */ + enum mt9m111_context context; + unsigned int left, top, width, height; + u32 pixfmt; + unsigned char autoexposure; + unsigned char datawidth; + unsigned int powered:1; + unsigned int hflip:1; + unsigned int vflip:1; + unsigned int swap_rgb_even_odd:1; + unsigned int swap_rgb_red_blue:1; + unsigned int swap_yuv_y_chromas:1; + unsigned int swap_yuv_cb_cr:1; +}; + +static int reg_page_map_set(struct i2c_client *client, const u16 reg) +{ + int ret; + u16 page; + static int lastpage = -1; /* PageMap cache value */ + + page = (reg >> 8); + if (page == lastpage) + return 0; + if (page > 2) + return -EINVAL; + + ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page)); + if (ret >= 0) + lastpage = page; + return ret; +} + +static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = mt9m111->client; + int ret; + + ret = reg_page_map_set(client, reg); + if (!ret) + ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff))); + + dev_dbg(&icd->dev, "read reg.%03x -> %04x\n", reg, ret); + return ret; +} + +static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = mt9m111->client; + int ret; + + ret = reg_page_map_set(client, reg); + if (ret >= 0) + ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff), + swab16(data)); + dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); + return ret; +} + +static int mt9m111_reg_set(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + int ret; + + ret = mt9m111_reg_read(icd, reg); + if (ret >= 0) + ret = mt9m111_reg_write(icd, reg, ret | data); + return ret; +} + +static int mt9m111_reg_clear(struct soc_camera_device *icd, const u16 reg, + const u16 data) +{ + int ret; + + ret = mt9m111_reg_read(icd, reg); + return mt9m111_reg_write(icd, reg, ret & ~data); +} + +static int mt9m111_set_context(struct soc_camera_device *icd, + enum mt9m111_context ctxt) +{ + int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B + | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B + | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B + | MT9M111_CTXT_CTRL_VBLANK_SEL_B + | MT9M111_CTXT_CTRL_HBLANK_SEL_B; + int valA = MT9M111_CTXT_CTRL_RESTART; + + if (ctxt == HIGHPOWER) + return reg_write(CONTEXT_CONTROL, valB); + else + return reg_write(CONTEXT_CONTROL, valA); +} + +static int mt9m111_setup_rect(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0, is_raw_format; + int width = mt9m111->width; + int height = mt9m111->height; + + if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8) + || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16)) + is_raw_format = 1; + else + is_raw_format = 0; + + if (ret >= 0) + ret = reg_write(COLUMN_START, mt9m111->left); + if (ret >= 0) + ret = reg_write(ROW_START, mt9m111->top); + + if (is_raw_format) { + if (ret >= 0) + ret = reg_write(WINDOW_WIDTH, width); + if (ret >= 0) + ret = reg_write(WINDOW_HEIGHT, height); + } else { + if (ret >= 0) + ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH); + if (ret >= 0) + ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT); + if (ret >= 0) + ret = reg_write(REDUCER_XSIZE_B, width); + if (ret >= 0) + ret = reg_write(REDUCER_YSIZE_B, height); + if (ret >= 0) + ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH); + if (ret >= 0) + ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT); + if (ret >= 0) + ret = reg_write(REDUCER_XSIZE_A, width); + if (ret >= 0) + ret = reg_write(REDUCER_YSIZE_A, height); + } + + return ret; +} + +static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt) +{ + int ret; + + ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt); + if (ret >= 0) + ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt); + return ret; +} + +static int mt9m111_setfmt_bayer8(struct soc_camera_device *icd) +{ + return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_PROCESSED_BAYER); +} + +static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd) +{ + + return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_BYPASS_IFP); +} + +static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_rgb_red_blue) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_rgb_even_odd) + val |= MT9M111_OUTFMT_SWAP_RGB_EVEN; + val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_rgb_red_blue) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_rgb_even_odd) + val |= MT9M111_OUTFMT_SWAP_RGB_EVEN; + val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_setfmt_yuv(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int val = 0; + + if (mt9m111->swap_yuv_cb_cr) + val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr; + if (mt9m111->swap_yuv_y_chromas) + val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y; + + return mt9m111_setup_pixfmt(icd, val); +} + +static int mt9m111_enable(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE); + if (ret >= 0) + mt9m111->powered = 1; + return ret; +} + +static int mt9m111_disable(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); + if (ret >= 0) + mt9m111->powered = 0; + return ret; +} + +static int mt9m111_reset(struct soc_camera_device *icd) +{ + int ret; + + ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); + if (ret >= 0) + ret = reg_set(RESET, MT9M111_RESET_RESET_SOC); + if (ret >= 0) + ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE + | MT9M111_RESET_RESET_SOC); + return ret; +} + +static int mt9m111_start_capture(struct soc_camera_device *icd) +{ + return 0; +} + +static int mt9m111_stop_capture(struct soc_camera_device *icd) +{ + return 0; +} + +static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd) +{ + return SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING | + SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH | + SOCAM_DATAWIDTH_8; +} + +static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f) +{ + return 0; +} + +static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + switch (pixfmt) { + case V4L2_PIX_FMT_SBGGR8: + ret = mt9m111_setfmt_bayer8(icd); + break; + case V4L2_PIX_FMT_SBGGR16: + ret = mt9m111_setfmt_bayer10(icd); + break; + case V4L2_PIX_FMT_RGB555: + ret = mt9m111_setfmt_rgb555(icd); + break; + case V4L2_PIX_FMT_RGB565: + ret = mt9m111_setfmt_rgb565(icd); + break; + case V4L2_PIX_FMT_YUYV: + ret = mt9m111_setfmt_yuv(icd); + break; + default: + dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt); + ret = -EINVAL; + } + + if (ret >= 0) + mt9m111->pixfmt = pixfmt; + + return ret; +} + +static int mt9m111_set_fmt_cap(struct soc_camera_device *icd, + __u32 pixfmt, struct v4l2_rect *rect) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + mt9m111->left = rect->left; + mt9m111->top = rect->top; + mt9m111->width = rect->width; + mt9m111->height = rect->height; + + dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n", + __func__, pixfmt, mt9m111->left, mt9m111->top, mt9m111->width, + mt9m111->height); + + ret = mt9m111_setup_rect(icd); + if (ret >= 0) + ret = mt9m111_set_pixfmt(icd, pixfmt); + return ret < 0 ? ret : 0; +} + +static int mt9m111_try_fmt_cap(struct soc_camera_device *icd, + struct v4l2_format *f) +{ + if (f->fmt.pix.height > MT9M111_MAX_HEIGHT) + f->fmt.pix.height = MT9M111_MAX_HEIGHT; + if (f->fmt.pix.width > MT9M111_MAX_WIDTH) + f->fmt.pix.width = MT9M111_MAX_WIDTH; + + return 0; +} + +static int mt9m111_get_chip_id(struct soc_camera_device *icd, + struct v4l2_chip_ident *id) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (id->match_type != V4L2_CHIP_MATCH_I2C_ADDR) + return -EINVAL; + + if (id->match_chip != mt9m111->client->addr) + return -ENODEV; + + id->ident = mt9m111->model; + id->revision = 0; + + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9m111_get_register(struct soc_camera_device *icd, + struct v4l2_register *reg) +{ + int val; + + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) + return -EINVAL; + if (reg->match_chip != mt9m111->client->addr) + return -ENODEV; + + val = mt9m111_reg_read(icd, reg->reg); + reg->val = (u64)val; + + if (reg->val > 0xffff) + return -EIO; + + return 0; +} + +static int mt9m111_set_register(struct soc_camera_device *icd, + struct v4l2_register *reg) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) + return -EINVAL; + + if (reg->match_chip != mt9m111->client->addr) + return -ENODEV; + + if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0) + return -EIO; + + return 0; +} +#endif + +static const struct v4l2_queryctrl mt9m111_controls[] = { + { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Flip Verticaly", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Flip Horizontaly", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, { /* gain = 1/32*val (=>gain=1 if val==32) */ + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain", + .minimum = 0, + .maximum = 63 * 2 * 2, + .step = 1, + .default_value = 32, + .flags = V4L2_CTRL_FLAG_SLIDER, + }, { + .id = V4L2_CID_EXPOSURE_AUTO, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Auto Exposure", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1, + } +}; + +static int mt9m111_video_probe(struct soc_camera_device *); +static void mt9m111_video_remove(struct soc_camera_device *); +static int mt9m111_get_control(struct soc_camera_device *, + struct v4l2_control *); +static int mt9m111_set_control(struct soc_camera_device *, + struct v4l2_control *); +static int mt9m111_resume(struct soc_camera_device *icd); +static int mt9m111_init(struct soc_camera_device *icd); +static int mt9m111_release(struct soc_camera_device *icd); + +static struct soc_camera_ops mt9m111_ops = { + .owner = THIS_MODULE, + .probe = mt9m111_video_probe, + .remove = mt9m111_video_remove, + .init = mt9m111_init, + .resume = mt9m111_resume, + .release = mt9m111_release, + .start_capture = mt9m111_start_capture, + .stop_capture = mt9m111_stop_capture, + .set_fmt_cap = mt9m111_set_fmt_cap, + .try_fmt_cap = mt9m111_try_fmt_cap, + .query_bus_param = mt9m111_query_bus_param, + .set_bus_param = mt9m111_set_bus_param, + .controls = mt9m111_controls, + .num_controls = ARRAY_SIZE(mt9m111_controls), + .get_control = mt9m111_get_control, + .set_control = mt9m111_set_control, + .get_chip_id = mt9m111_get_chip_id, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .get_register = mt9m111_get_register, + .set_register = mt9m111_set_register, +#endif +}; + +static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + if (mt9m111->context == HIGHPOWER) { + if (flip) + ret = reg_set(READ_MODE_B, mask); + else + ret = reg_clear(READ_MODE_B, mask); + } else { + if (flip) + ret = reg_set(READ_MODE_A, mask); + else + ret = reg_clear(READ_MODE_A, mask); + } + + return ret; +} + +static int mt9m111_get_global_gain(struct soc_camera_device *icd) +{ + unsigned int data, gain; + + data = reg_read(GLOBAL_GAIN); + if (data >= 0) + gain = ((data & (1 << 10)) * 2) + | ((data & (1 << 9)) * 2) + | (data & 0x2f); + else + gain = data; + + return gain; +} +static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain) +{ + u16 val; + + if (gain > 63 * 2 * 2) + return -EINVAL; + + icd->gain = gain; + if ((gain >= 64 * 2) && (gain < 63 * 2 * 2)) + val = (1 << 10) | (1 << 9) | (gain / 4); + else if ((gain >= 64) && (gain < 64 * 2)) + val = (1<<9) | (gain / 2); + else + val = gain; + + return reg_write(GLOBAL_GAIN, val); +} + +static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + if (on) + ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); + else + ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); + + if (ret >= 0) + mt9m111->autoexposure = on; + + return ret; +} +static int mt9m111_get_control(struct soc_camera_device *icd, + struct v4l2_control *ctrl) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int data; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (mt9m111->context == HIGHPOWER) + data = reg_read(READ_MODE_B); + else + data = reg_read(READ_MODE_A); + + if (data < 0) + return -EIO; + ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS); + break; + case V4L2_CID_HFLIP: + if (mt9m111->context == HIGHPOWER) + data = reg_read(READ_MODE_B); + else + data = reg_read(READ_MODE_A); + + if (data < 0) + return -EIO; + ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS); + break; + case V4L2_CID_GAIN: + data = mt9m111_get_global_gain(icd); + if (data < 0) + return data; + ctrl->value = data; + break; + case V4L2_CID_EXPOSURE_AUTO: + ctrl->value = mt9m111->autoexposure; + break; + } + return 0; +} + +static int mt9m111_set_control(struct soc_camera_device *icd, + struct v4l2_control *ctrl) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + const struct v4l2_queryctrl *qctrl; + int ret = 0; + + qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id); + + if (!qctrl) + return -EINVAL; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + mt9m111->vflip = ctrl->value; + ret = mt9m111_set_flip(icd, ctrl->value, + MT9M111_RMB_MIRROR_ROWS); + break; + case V4L2_CID_HFLIP: + mt9m111->hflip = ctrl->value; + ret = mt9m111_set_flip(icd, ctrl->value, + MT9M111_RMB_MIRROR_COLS); + break; + case V4L2_CID_GAIN: + ret = mt9m111_set_global_gain(icd, ctrl->value); + break; + case V4L2_CID_EXPOSURE_AUTO: + ret = mt9m111_set_autoexposure(icd, ctrl->value); + break; + default: + ret = -EINVAL; + } + + return ret < 0 ? -EIO : 0; +} + +int mt9m111_restore_state(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + mt9m111_set_context(icd, mt9m111->context); + mt9m111_set_pixfmt(icd, mt9m111->pixfmt); + mt9m111_setup_rect(icd); + mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS); + mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS); + mt9m111_set_global_gain(icd, icd->gain); + mt9m111_set_autoexposure(icd, mt9m111->autoexposure); + return 0; +} + +static int mt9m111_resume(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret = 0; + + if (mt9m111->powered) { + ret = mt9m111_enable(icd); + if (ret >= 0) + mt9m111_reset(icd); + if (ret >= 0) + mt9m111_restore_state(icd); + } + return ret; +} + +static int mt9m111_init(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + mt9m111->context = HIGHPOWER; + ret = mt9m111_enable(icd); + if (ret >= 0) + mt9m111_reset(icd); + if (ret >= 0) + mt9m111_set_context(icd, mt9m111->context); + if (ret >= 0) + mt9m111_set_autoexposure(icd, mt9m111->autoexposure); + if (ret < 0) + dev_err(&icd->dev, "mt9m111 init failed: %d\n", ret); + return ret ? -EIO : 0; +} + +static int mt9m111_release(struct soc_camera_device *icd) +{ + int ret; + + ret = mt9m111_disable(icd); + if (ret < 0) + dev_err(&icd->dev, "mt9m111 release failed: %d\n", ret); + + return ret ? -EIO : 0; +} + +/* + * Interface active, can use i2c. If it fails, it can indeed mean, that + * this wasn't our capture interface, so, we wait for the right one + */ +static int mt9m111_video_probe(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + s32 data; + int ret; + + /* + * We must have a parent by now. And it cannot be a wrong one. + * So this entire test is completely redundant. + */ + if (!icd->dev.parent || + to_soc_camera_host(icd->dev.parent)->nr != icd->iface) + return -ENODEV; + + ret = mt9m111_enable(icd); + if (ret) + goto ei2c; + ret = mt9m111_reset(icd); + if (ret) + goto ei2c; + + data = reg_read(CHIP_VERSION); + + switch (data) { + case 0x143a: + mt9m111->model = V4L2_IDENT_MT9M111; + icd->formats = mt9m111_colour_formats; + icd->num_formats = ARRAY_SIZE(mt9m111_colour_formats); + break; + default: + ret = -ENODEV; + dev_err(&icd->dev, + "No MT9M111 chip detected, register read %x\n", data); + goto ei2c; + } + + dev_info(&icd->dev, "Detected a MT9M111 chip ID 0x143a\n"); + + ret = soc_camera_video_start(icd); + if (ret) + goto eisis; + + mt9m111->autoexposure = 1; + + mt9m111->swap_rgb_even_odd = 1; + mt9m111->swap_rgb_red_blue = 1; + + return 0; +eisis: +ei2c: + return ret; +} + +static void mt9m111_video_remove(struct soc_camera_device *icd) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + + dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr, + mt9m111->icd.dev.parent, mt9m111->icd.vdev); + soc_camera_video_stop(&mt9m111->icd); +} + +static int mt9m111_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct mt9m111 *mt9m111; + struct soc_camera_device *icd; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct soc_camera_link *icl = client->dev.platform_data; + int ret; + + if (!icl) { + dev_err(&client->dev, "MT9M111 driver needs platform data\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); + return -EIO; + } + + mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL); + if (!mt9m111) + return -ENOMEM; + + mt9m111->client = client; + i2c_set_clientdata(client, mt9m111); + + /* Second stage probe - when a capture adapter is there */ + icd = &mt9m111->icd; + icd->ops = &mt9m111_ops; + icd->control = &client->dev; + icd->x_min = MT9M111_MIN_DARK_COLS; + icd->y_min = MT9M111_MIN_DARK_ROWS; + icd->x_current = icd->x_min; + icd->y_current = icd->y_min; + icd->width_min = MT9M111_MIN_DARK_ROWS; + icd->width_max = MT9M111_MAX_WIDTH; + icd->height_min = MT9M111_MIN_DARK_COLS; + icd->height_max = MT9M111_MAX_HEIGHT; + icd->y_skip_top = 0; + icd->iface = icl->bus_id; + + ret = soc_camera_device_register(icd); + if (ret) + goto eisdr; + return 0; + +eisdr: + kfree(mt9m111); + return ret; +} + +static int mt9m111_remove(struct i2c_client *client) +{ + struct mt9m111 *mt9m111 = i2c_get_clientdata(client); + soc_camera_device_unregister(&mt9m111->icd); + kfree(mt9m111); + + return 0; +} + +static const struct i2c_device_id mt9m111_id[] = { + { "mt9m111", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mt9m111_id); + +static struct i2c_driver mt9m111_i2c_driver = { + .driver = { + .name = "mt9m111", + }, + .probe = mt9m111_probe, + .remove = mt9m111_remove, + .id_table = mt9m111_id, +}; + +static int __init mt9m111_mod_init(void) +{ + return i2c_add_driver(&mt9m111_i2c_driver); +} + +static void __exit mt9m111_mod_exit(void) +{ + i2c_del_driver(&mt9m111_i2c_driver); +} + +module_init(mt9m111_mod_init); +module_exit(mt9m111_mod_exit); + +MODULE_DESCRIPTION("Micron MT9M111 Camera driver"); +MODULE_AUTHOR("Robert Jarzmik"); +MODULE_LICENSE("GPL"); -- 1.5.6.3 -- 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:[~2008-08-11 21:57 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2008-08-02 16:29 Micron MT9M111 driver Robert Jarzmik 2008-08-02 16:30 ` [PATCH 1/2] Add Micron mt9m111 chip ID in V4L2 identifiers Robert Jarzmik 2008-08-02 16:30 ` [PATCH 2/2] Add support for Micron MT9M111 camera Robert Jarzmik 2008-08-02 20:44 ` Guennadi Liakhovetski 2008-08-03 10:49 ` Robert Jarzmik 2008-08-11 21:56 ` [PATCH] " Robert Jarzmik
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