diff options
Diffstat (limited to 'drivers/media/video/mt9m111.c')
| -rw-r--r-- | drivers/media/video/mt9m111.c | 1140 |
1 files changed, 0 insertions, 1140 deletions
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c deleted file mode 100644 index ebebed92962..00000000000 --- a/drivers/media/video/mt9m111.c +++ /dev/null @@ -1,1140 +0,0 @@ -/* - * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina - * - * 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, MT9M112 and MT9M131: - * i2c address is 0x48 or 0x5d (depending on SADDR pin) - * The platform has to define i2c_board_info and call i2c_register_board_info() - */ - -/* - * Sensor core register addresses (0x000..0x0ff) - */ -#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) - -/* - * 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_OPMODE_AUTOWHITEBAL_EN (1 << 1) - -#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 (0 << 6) -#define MT9M111_OUTFMT_RGB555 (1 << 6) -#define MT9M111_OUTFMT_RGB444x (2 << 6) -#define MT9M111_OUTFMT_RGBx444 (3 << 6) -#define MT9M111_OUTFMT_TST_RAMP_OFF (0 << 4) -#define MT9M111_OUTFMT_TST_RAMP_COL (1 << 4) -#define MT9M111_OUTFMT_TST_RAMP_ROW (2 << 4) -#define MT9M111_OUTFMT_TST_RAMP_FRAME (3 << 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) - -/* - * Camera control register addresses (0x200..0x2ff not implemented) - */ - -#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg) -#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val)) -#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val)) -#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val)) - -#define MT9M111_MIN_DARK_ROWS 8 -#define MT9M111_MIN_DARK_COLS 26 -#define MT9M111_MAX_HEIGHT 1024 -#define MT9M111_MAX_WIDTH 1280 - -/* MT9M111 has only one fixed colorspace per pixelcode */ -struct mt9m111_datafmt { - enum v4l2_mbus_pixelcode code; - enum v4l2_colorspace colorspace; -}; - -/* Find a data format by a pixel code in an array */ -static const struct mt9m111_datafmt *mt9m111_find_datafmt( - enum v4l2_mbus_pixelcode code, const struct mt9m111_datafmt *fmt, - int n) -{ - int i; - for (i = 0; i < n; i++) - if (fmt[i].code == code) - return fmt + i; - - return NULL; -} - -static const struct mt9m111_datafmt mt9m111_colour_fmts[] = { - {V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG}, - {V4L2_MBUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG}, - {V4L2_MBUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG}, - {V4L2_MBUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_JPEG}, - {V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, -}; - -enum mt9m111_context { - HIGHPOWER = 0, - LOWPOWER, -}; - -struct mt9m111 { - struct v4l2_subdev subdev; - int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code - * from v4l2-chip-ident.h */ - enum mt9m111_context context; - struct v4l2_rect rect; - const struct mt9m111_datafmt *fmt; - unsigned int gain; - 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; - unsigned int autowhitebalance:1; -}; - -static struct mt9m111 *to_mt9m111(const struct i2c_client *client) -{ - return container_of(i2c_get_clientdata(client), struct mt9m111, subdev); -} - -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) - lastpage = page; - return ret; -} - -static int mt9m111_reg_read(struct i2c_client *client, const u16 reg) -{ - int ret; - - ret = reg_page_map_set(client, reg); - if (!ret) - ret = swab16(i2c_smbus_read_word_data(client, reg & 0xff)); - - dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret); - return ret; -} - -static int mt9m111_reg_write(struct i2c_client *client, const u16 reg, - const u16 data) -{ - int ret; - - ret = reg_page_map_set(client, reg); - if (!ret) - ret = i2c_smbus_write_word_data(client, reg & 0xff, - swab16(data)); - dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); - return ret; -} - -static int mt9m111_reg_set(struct i2c_client *client, const u16 reg, - const u16 data) -{ - int ret; - - ret = mt9m111_reg_read(client, reg); - if (ret >= 0) - ret = mt9m111_reg_write(client, reg, ret | data); - return ret; -} - -static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg, - const u16 data) -{ - int ret; - - ret = mt9m111_reg_read(client, reg); - return mt9m111_reg_write(client, reg, ret & ~data); -} - -static int mt9m111_set_context(struct i2c_client *client, - 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 i2c_client *client, - struct v4l2_rect *rect) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret, is_raw_format; - int width = rect->width; - int height = rect->height; - - if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 || - mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) - is_raw_format = 1; - else - is_raw_format = 0; - - ret = reg_write(COLUMN_START, rect->left); - if (!ret) - ret = reg_write(ROW_START, rect->top); - - if (is_raw_format) { - if (!ret) - ret = reg_write(WINDOW_WIDTH, width); - if (!ret) - ret = reg_write(WINDOW_HEIGHT, height); - } else { - if (!ret) - ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH); - if (!ret) - ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT); - if (!ret) - ret = reg_write(REDUCER_XSIZE_B, width); - if (!ret) - ret = reg_write(REDUCER_YSIZE_B, height); - if (!ret) - ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH); - if (!ret) - ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT); - if (!ret) - ret = reg_write(REDUCER_XSIZE_A, width); - if (!ret) - ret = reg_write(REDUCER_YSIZE_A, height); - } - - return ret; -} - -static int mt9m111_setup_pixfmt(struct i2c_client *client, u16 outfmt) -{ - int ret; - u16 mask = MT9M111_OUTFMT_PROCESSED_BAYER | MT9M111_OUTFMT_RGB | - MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_SWAP_RGB_EVEN | - MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 | - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr | - MT9M111_OUTFMT_SWAP_YCbCr_C_Y; - - ret = reg_read(OUTPUT_FORMAT_CTRL2_A); - if (ret >= 0) - ret = reg_write(OUTPUT_FORMAT_CTRL2_A, (ret & ~mask) | outfmt); - if (!ret) - ret = reg_read(OUTPUT_FORMAT_CTRL2_B); - if (ret >= 0) - ret = reg_write(OUTPUT_FORMAT_CTRL2_B, (ret & ~mask) | outfmt); - - return ret; -} - -static int mt9m111_setfmt_bayer8(struct i2c_client *client) -{ - return mt9m111_setup_pixfmt(client, MT9M111_OUTFMT_PROCESSED_BAYER | - MT9M111_OUTFMT_RGB); -} - -static int mt9m111_setfmt_bayer10(struct i2c_client *client) -{ - return mt9m111_setup_pixfmt(client, MT9M111_OUTFMT_BYPASS_IFP); -} - -static int mt9m111_setfmt_rgb565(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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(client, val); -} - -static int mt9m111_setfmt_rgb555(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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(client, val); -} - -static int mt9m111_setfmt_yuv(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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(client, val); -} - -static int mt9m111_enable(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret; - - ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE); - if (!ret) - mt9m111->powered = 1; - return ret; -} - -static int mt9m111_reset(struct i2c_client *client) -{ - int ret; - - ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); - if (!ret) - ret = reg_set(RESET, MT9M111_RESET_RESET_SOC); - if (!ret) - ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE - | MT9M111_RESET_RESET_SOC); - - return ret; -} - -static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd) -{ - struct soc_camera_link *icl = to_soc_camera_link(icd); - unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING | - SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH | - SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8; - - return soc_camera_apply_sensor_flags(icl, flags); -} - -static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f) -{ - return 0; -} - -static int mt9m111_make_rect(struct i2c_client *client, - struct v4l2_rect *rect) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - - if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 || - mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) { - /* Bayer format - even size lengths */ - rect->width = ALIGN(rect->width, 2); - rect->height = ALIGN(rect->height, 2); - /* Let the user play with the starting pixel */ - } - - /* FIXME: the datasheet doesn't specify minimum sizes */ - soc_camera_limit_side(&rect->left, &rect->width, - MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH); - - soc_camera_limit_side(&rect->top, &rect->height, - MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT); - - return mt9m111_setup_rect(client, rect); -} - -static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) -{ - struct v4l2_rect rect = a->c; - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret; - - dev_dbg(&client->dev, "%s left=%d, top=%d, width=%d, height=%d\n", - __func__, rect.left, rect.top, rect.width, rect.height); - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - ret = mt9m111_make_rect(client, &rect); - if (!ret) - mt9m111->rect = rect; - return ret; -} - -static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - - a->c = mt9m111->rect; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - return 0; -} - -static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) -{ - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - a->bounds.left = MT9M111_MIN_DARK_COLS; - a->bounds.top = MT9M111_MIN_DARK_ROWS; - a->bounds.width = MT9M111_MAX_WIDTH; - a->bounds.height = MT9M111_MAX_HEIGHT; - a->defrect = a->bounds; - a->pixelaspect.numerator = 1; - a->pixelaspect.denominator = 1; - - return 0; -} - -static int mt9m111_g_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - - mf->width = mt9m111->rect.width; - mf->height = mt9m111->rect.height; - mf->code = mt9m111->fmt->code; - mf->colorspace = mt9m111->fmt->colorspace; - mf->field = V4L2_FIELD_NONE; - - return 0; -} - -static int mt9m111_set_pixfmt(struct i2c_client *client, - enum v4l2_mbus_pixelcode code) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret; - - switch (code) { - case V4L2_MBUS_FMT_SBGGR8_1X8: - ret = mt9m111_setfmt_bayer8(client); - break; - case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE: - ret = mt9m111_setfmt_bayer10(client); - break; - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE: - ret = mt9m111_setfmt_rgb555(client); - break; - case V4L2_MBUS_FMT_RGB565_2X8_LE: - ret = mt9m111_setfmt_rgb565(client); - break; - case V4L2_MBUS_FMT_UYVY8_2X8: - mt9m111->swap_yuv_y_chromas = 0; - mt9m111->swap_yuv_cb_cr = 0; - ret = mt9m111_setfmt_yuv(client); - break; - case V4L2_MBUS_FMT_VYUY8_2X8: - mt9m111->swap_yuv_y_chromas = 0; - mt9m111->swap_yuv_cb_cr = 1; - ret = mt9m111_setfmt_yuv(client); - break; - case V4L2_MBUS_FMT_YUYV8_2X8: - mt9m111->swap_yuv_y_chromas = 1; - mt9m111->swap_yuv_cb_cr = 0; - ret = mt9m111_setfmt_yuv(client); - break; - case V4L2_MBUS_FMT_YVYU8_2X8: - mt9m111->swap_yuv_y_chromas = 1; - mt9m111->swap_yuv_cb_cr = 1; - ret = mt9m111_setfmt_yuv(client); - break; - default: - dev_err(&client->dev, "Pixel format not handled : %x\n", - code); - ret = -EINVAL; - } - - return ret; -} - -static int mt9m111_s_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - const struct mt9m111_datafmt *fmt; - struct mt9m111 *mt9m111 = to_mt9m111(client); - struct v4l2_rect rect = { - .left = mt9m111->rect.left, - .top = mt9m111->rect.top, - .width = mf->width, - .height = mf->height, - }; - int ret; - - fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts, - ARRAY_SIZE(mt9m111_colour_fmts)); - if (!fmt) - return -EINVAL; - - dev_dbg(&client->dev, - "%s code=%x left=%d, top=%d, width=%d, height=%d\n", __func__, - mf->code, rect.left, rect.top, rect.width, rect.height); - - ret = mt9m111_make_rect(client, &rect); - if (!ret) - ret = mt9m111_set_pixfmt(client, mf->code); - if (!ret) { - mt9m111->rect = rect; - mt9m111->fmt = fmt; - mf->colorspace = fmt->colorspace; - } - - return ret; -} - -static int mt9m111_try_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - const struct mt9m111_datafmt *fmt; - bool bayer = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 || - mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE; - - fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts, - ARRAY_SIZE(mt9m111_colour_fmts)); - if (!fmt) { - fmt = mt9m111->fmt; - mf->code = fmt->code; - } - - /* - * With Bayer format enforce even side lengths, but let the user play - * with the starting pixel - */ - - if (mf->height > MT9M111_MAX_HEIGHT) - mf->height = MT9M111_MAX_HEIGHT; - else if (mf->height < 2) - mf->height = 2; - else if (bayer) - mf->height = ALIGN(mf->height, 2); - - if (mf->width > MT9M111_MAX_WIDTH) - mf->width = MT9M111_MAX_WIDTH; - else if (mf->width < 2) - mf->width = 2; - else if (bayer) - mf->width = ALIGN(mf->width, 2); - - mf->colorspace = fmt->colorspace; - - return 0; -} - -static int mt9m111_g_chip_ident(struct v4l2_subdev *sd, - struct v4l2_dbg_chip_ident *id) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - - if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) - return -EINVAL; - - if (id->match.addr != client->addr) - return -ENODEV; - - id->ident = mt9m111->model; - id->revision = 0; - - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int mt9m111_g_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int val; - - if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) - return -EINVAL; - if (reg->match.addr != client->addr) - return -ENODEV; - - val = mt9m111_reg_read(client, reg->reg); - reg->size = 2; - reg->val = (u64)val; - - if (reg->val > 0xffff) - return -EIO; - - return 0; -} - -static int mt9m111_s_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) - return -EINVAL; - - if (reg->match.addr != client->addr) - return -ENODEV; - - if (mt9m111_reg_write(client, 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_resume(struct soc_camera_device *icd); -static int mt9m111_suspend(struct soc_camera_device *icd, pm_message_t state); - -static struct soc_camera_ops mt9m111_ops = { - .suspend = mt9m111_suspend, - .resume = mt9m111_resume, - .query_bus_param = mt9m111_query_bus_param, - .set_bus_param = mt9m111_set_bus_param, - .controls = mt9m111_controls, - .num_controls = ARRAY_SIZE(mt9m111_controls), -}; - -static int mt9m111_set_flip(struct i2c_client *client, int flip, int mask) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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 i2c_client *client) -{ - int data; - - data = reg_read(GLOBAL_GAIN); - if (data >= 0) - return (data & 0x2f) * (1 << ((data >> 10) & 1)) * - (1 << ((data >> 9) & 1)); - return data; -} - -static int mt9m111_set_global_gain(struct i2c_client *client, int gain) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - u16 val; - - if (gain > 63 * 2 * 2) - return -EINVAL; - - mt9m111->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 i2c_client *client, int on) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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) - mt9m111->autoexposure = on; - - return ret; -} - -static int mt9m111_set_autowhitebalance(struct i2c_client *client, int on) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret; - - if (on) - ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); - else - ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); - - if (!ret) - mt9m111->autowhitebalance = on; - - return ret; -} - -static int mt9m111_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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(client); - if (data < 0) - return data; - ctrl->value = data; - break; - case V4L2_CID_EXPOSURE_AUTO: - ctrl->value = mt9m111->autoexposure; - break; - case V4L2_CID_AUTO_WHITE_BALANCE: - ctrl->value = mt9m111->autowhitebalance; - break; - } - return 0; -} - -static int mt9m111_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m111 *mt9m111 = to_mt9m111(client); - const struct v4l2_queryctrl *qctrl; - int ret; - - 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(client, ctrl->value, - MT9M111_RMB_MIRROR_ROWS); - break; - case V4L2_CID_HFLIP: - mt9m111->hflip = ctrl->value; - ret = mt9m111_set_flip(client, ctrl->value, - MT9M111_RMB_MIRROR_COLS); - break; - case V4L2_CID_GAIN: - ret = mt9m111_set_global_gain(client, ctrl->value); - break; - case V4L2_CID_EXPOSURE_AUTO: - ret = mt9m111_set_autoexposure(client, ctrl->value); - break; - case V4L2_CID_AUTO_WHITE_BALANCE: - ret = mt9m111_set_autowhitebalance(client, ctrl->value); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static int mt9m111_suspend(struct soc_camera_device *icd, pm_message_t state) -{ - struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd)); - struct mt9m111 *mt9m111 = to_mt9m111(client); - - mt9m111->gain = mt9m111_get_global_gain(client); - - return 0; -} - -static int mt9m111_restore_state(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - - mt9m111_set_context(client, mt9m111->context); - mt9m111_set_pixfmt(client, mt9m111->fmt->code); - mt9m111_setup_rect(client, &mt9m111->rect); - mt9m111_set_flip(client, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS); - mt9m111_set_flip(client, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS); - mt9m111_set_global_gain(client, mt9m111->gain); - mt9m111_set_autoexposure(client, mt9m111->autoexposure); - mt9m111_set_autowhitebalance(client, mt9m111->autowhitebalance); - return 0; -} - -static int mt9m111_resume(struct soc_camera_device *icd) -{ - struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd)); - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret = 0; - - if (mt9m111->powered) { - ret = mt9m111_enable(client); - if (!ret) - ret = mt9m111_reset(client); - if (!ret) - ret = mt9m111_restore_state(client); - } - return ret; -} - -static int mt9m111_init(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - int ret; - - mt9m111->context = HIGHPOWER; - ret = mt9m111_enable(client); - if (!ret) - ret = mt9m111_reset(client); - if (!ret) - ret = mt9m111_set_context(client, mt9m111->context); - if (!ret) - ret = mt9m111_set_autoexposure(client, mt9m111->autoexposure); - if (ret) - dev_err(&client->dev, "mt9m111 init failed: %d\n", ret); - return ret; -} - -/* - * 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 i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - 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; - - mt9m111->autoexposure = 1; - mt9m111->autowhitebalance = 1; - - mt9m111->swap_rgb_even_odd = 1; - mt9m111->swap_rgb_red_blue = 1; - - data = reg_read(CHIP_VERSION); - - switch (data) { - case 0x143a: /* MT9M111 or MT9M131 */ - mt9m111->model = V4L2_IDENT_MT9M111; - dev_info(&client->dev, - "Detected a MT9M111/MT9M131 chip ID %x\n", data); - break; - case 0x148c: /* MT9M112 */ - mt9m111->model = V4L2_IDENT_MT9M112; - dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data); - break; - default: - ret = -ENODEV; - dev_err(&client->dev, - "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n", - data); - goto ei2c; - } - - ret = mt9m111_init(client); - -ei2c: - return ret; -} - -static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = { - .g_ctrl = mt9m111_g_ctrl, - .s_ctrl = mt9m111_s_ctrl, - .g_chip_ident = mt9m111_g_chip_ident, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .g_register = mt9m111_g_register, - .s_register = mt9m111_s_register, -#endif -}; - -static int mt9m111_enum_fmt(struct v4l2_subdev *sd, unsigned int index, - enum v4l2_mbus_pixelcode *code) -{ - if (index >= ARRAY_SIZE(mt9m111_colour_fmts)) - return -EINVAL; - - *code = mt9m111_colour_fmts[index].code; - return 0; -} - -static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = { - .s_mbus_fmt = mt9m111_s_fmt, - .g_mbus_fmt = mt9m111_g_fmt, - .try_mbus_fmt = mt9m111_try_fmt, - .s_crop = mt9m111_s_crop, - .g_crop = mt9m111_g_crop, - .cropcap = mt9m111_cropcap, - .enum_mbus_fmt = mt9m111_enum_fmt, -}; - -static struct v4l2_subdev_ops mt9m111_subdev_ops = { - .core = &mt9m111_subdev_core_ops, - .video = &mt9m111_subdev_video_ops, -}; - -static int mt9m111_probe(struct i2c_client *client, - const struct i2c_device_id *did) -{ - struct mt9m111 *mt9m111; - struct soc_camera_device *icd = client->dev.platform_data; - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - struct soc_camera_link *icl; - int ret; - - if (!icd) { - dev_err(&client->dev, "mt9m111: soc-camera data missing!\n"); - return -EINVAL; - } - - icl = to_soc_camera_link(icd); - 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; - - v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops); - - /* Second stage probe - when a capture adapter is there */ - icd->ops = &mt9m111_ops; - - mt9m111->rect.left = MT9M111_MIN_DARK_COLS; - mt9m111->rect.top = MT9M111_MIN_DARK_ROWS; - mt9m111->rect.width = MT9M111_MAX_WIDTH; - mt9m111->rect.height = MT9M111_MAX_HEIGHT; - mt9m111->fmt = &mt9m111_colour_fmts[0]; - - ret = mt9m111_video_probe(icd, client); - if (ret) { - icd->ops = NULL; - kfree(mt9m111); - } - - return ret; -} - -static int mt9m111_remove(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - struct soc_camera_device *icd = client->dev.platform_data; - - icd->ops = NULL; - 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/Aptina MT9M111/MT9M112/MT9M131 Camera driver"); -MODULE_AUTHOR("Robert Jarzmik"); -MODULE_LICENSE("GPL"); |