diff options
Diffstat (limited to 'drivers/media/video/mt9m111.c')
| -rw-r--r-- | drivers/media/video/mt9m111.c | 1014 |
1 files changed, 0 insertions, 1014 deletions
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c deleted file mode 100644 index 863d722..0000000 --- a/drivers/media/video/mt9m111.c +++ /dev/null @@ -1,1014 +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 <linux/v4l2-mediabus.h> -#include <linux/module.h> - -#include <media/soc_camera.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-chip-ident.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_RM_FULL_POWER_RD (0 << 10) -#define MT9M111_RM_LOW_POWER_RD (1 << 10) -#define MT9M111_RM_COL_SKIP_4X (1 << 5) -#define MT9M111_RM_ROW_SKIP_4X (1 << 4) -#define MT9M111_RM_COL_SKIP_2X (1 << 3) -#define MT9M111_RM_ROW_SKIP_2X (1 << 2) -#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_FLIP_BAYER_COL (1 << 9) -#define MT9M111_OUTFMT_FLIP_BAYER_ROW (1 << 8) -#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_RGB_EVEN (1 << 1) -#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (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 reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \ - (val), (mask)) - -#define MT9M111_MIN_DARK_ROWS 8 -#define MT9M111_MIN_DARK_COLS 26 -#define MT9M111_MAX_HEIGHT 1024 -#define MT9M111_MAX_WIDTH 1280 - -struct mt9m111_context { - u16 read_mode; - u16 blanking_h; - u16 blanking_v; - u16 reducer_xzoom; - u16 reducer_yzoom; - u16 reducer_xsize; - u16 reducer_ysize; - u16 output_fmt_ctrl2; - u16 control; -}; - -static struct mt9m111_context context_a = { - .read_mode = MT9M111_READ_MODE_A, - .blanking_h = MT9M111_HORIZONTAL_BLANKING_A, - .blanking_v = MT9M111_VERTICAL_BLANKING_A, - .reducer_xzoom = MT9M111_REDUCER_XZOOM_A, - .reducer_yzoom = MT9M111_REDUCER_YZOOM_A, - .reducer_xsize = MT9M111_REDUCER_XSIZE_A, - .reducer_ysize = MT9M111_REDUCER_YSIZE_A, - .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_A, - .control = MT9M111_CTXT_CTRL_RESTART, -}; - -static struct mt9m111_context context_b = { - .read_mode = MT9M111_READ_MODE_B, - .blanking_h = MT9M111_HORIZONTAL_BLANKING_B, - .blanking_v = MT9M111_VERTICAL_BLANKING_B, - .reducer_xzoom = MT9M111_REDUCER_XZOOM_B, - .reducer_yzoom = MT9M111_REDUCER_YZOOM_B, - .reducer_xsize = MT9M111_REDUCER_XSIZE_B, - .reducer_ysize = MT9M111_REDUCER_YSIZE_B, - .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_B, - .control = 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, -}; - -/* MT9M111 has only one fixed colorspace per pixelcode */ -struct mt9m111_datafmt { - enum v4l2_mbus_pixelcode code; - enum v4l2_colorspace colorspace; -}; - -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_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, - {V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, -}; - -struct mt9m111 { - struct v4l2_subdev subdev; - struct v4l2_ctrl_handler hdl; - struct v4l2_ctrl *gain; - int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code - * from v4l2-chip-ident.h */ - struct mt9m111_context *ctx; - struct v4l2_rect rect; /* cropping rectangle */ - int width; /* output */ - int height; /* sizes */ - struct mutex power_lock; /* lock to protect power_count */ - int power_count; - const struct mt9m111_datafmt *fmt; - int lastpage; /* PageMap cache value */ -}; - -/* Find a data format by a pixel code */ -static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111, - enum v4l2_mbus_pixelcode code) -{ - int i; - for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++) - if (mt9m111_colour_fmts[i].code == code) - return mt9m111_colour_fmts + i; - - return mt9m111->fmt; -} - -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; - struct mt9m111 *mt9m111 = to_mt9m111(client); - - page = (reg >> 8); - if (page == mt9m111->lastpage) - return 0; - if (page > 2) - return -EINVAL; - - ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page); - if (!ret) - mt9m111->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 = i2c_smbus_read_word_swapped(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_swapped(client, reg & 0xff, 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); - if (ret >= 0) - ret = mt9m111_reg_write(client, reg, ret & ~data); - return ret; -} - -static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg, - const u16 data, const u16 mask) -{ - int ret; - - ret = mt9m111_reg_read(client, reg); - if (ret >= 0) - ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data); - return ret; -} - -static int mt9m111_set_context(struct mt9m111 *mt9m111, - struct mt9m111_context *ctx) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - return reg_write(CONTEXT_CONTROL, ctx->control); -} - -static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111, - struct mt9m111_context *ctx, struct v4l2_rect *rect, - unsigned int width, unsigned int height) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width); - if (!ret) - ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height); - if (!ret) - ret = mt9m111_reg_write(client, ctx->reducer_xsize, width); - if (!ret) - ret = mt9m111_reg_write(client, ctx->reducer_ysize, height); - return ret; -} - -static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect, - int width, int height, enum v4l2_mbus_pixelcode code) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - int ret; - - ret = reg_write(COLUMN_START, rect->left); - if (!ret) - ret = reg_write(ROW_START, rect->top); - - if (!ret) - ret = reg_write(WINDOW_WIDTH, rect->width); - if (!ret) - ret = reg_write(WINDOW_HEIGHT, rect->height); - - if (code != V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) { - /* IFP in use, down-scaling possible */ - if (!ret) - ret = mt9m111_setup_rect_ctx(mt9m111, &context_b, - rect, width, height); - if (!ret) - ret = mt9m111_setup_rect_ctx(mt9m111, &context_a, - rect, width, height); - } - - dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n", - __func__, code, rect->width, rect->height, rect->left, rect->top, - width, height, ret); - - return ret; -} - -static int mt9m111_enable(struct mt9m111 *mt9m111) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE); -} - -static int mt9m111_reset(struct mt9m111 *mt9m111) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - 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 int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) -{ - struct v4l2_rect rect = a->c; - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); - int width, height; - int ret; - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - 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); - - width = min(mt9m111->width, rect.width); - height = min(mt9m111->height, rect.height); - - ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code); - if (!ret) { - mt9m111->rect = rect; - mt9m111->width = width; - mt9m111->height = height; - } - - return ret; -} - -static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) -{ - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); - - 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 mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); - - mf->width = mt9m111->width; - mf->height = mt9m111->height; - mf->code = mt9m111->fmt->code; - mf->colorspace = mt9m111->fmt->colorspace; - mf->field = V4L2_FIELD_NONE; - - return 0; -} - -static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111, - enum v4l2_mbus_pixelcode code) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER | - MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB | - MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 | - MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 | - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; - int ret; - - switch (code) { - case V4L2_MBUS_FMT_SBGGR8_1X8: - data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER | - MT9M111_OUTFMT_RGB; - break; - case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE: - data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB; - break; - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 | - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; - break; - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555; - break; - case V4L2_MBUS_FMT_RGB565_2X8_LE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; - break; - case V4L2_MBUS_FMT_RGB565_2X8_BE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565; - break; - case V4L2_MBUS_FMT_BGR565_2X8_BE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; - break; - case V4L2_MBUS_FMT_BGR565_2X8_LE: - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; - break; - case V4L2_MBUS_FMT_UYVY8_2X8: - data_outfmt2 = 0; - break; - case V4L2_MBUS_FMT_VYUY8_2X8: - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; - break; - case V4L2_MBUS_FMT_YUYV8_2X8: - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; - break; - case V4L2_MBUS_FMT_YVYU8_2X8: - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; - break; - default: - dev_err(&client->dev, "Pixel format not handled: %x\n", code); - return -EINVAL; - } - - ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2, - data_outfmt2, mask_outfmt2); - if (!ret) - ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2, - data_outfmt2, mask_outfmt2); - - 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 = container_of(sd, struct mt9m111, subdev); - const struct mt9m111_datafmt *fmt; - struct v4l2_rect *rect = &mt9m111->rect; - bool bayer; - - fmt = mt9m111_find_datafmt(mt9m111, mf->code); - - bayer = fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 || - fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE; - - /* - * With Bayer format enforce even side lengths, but let the user play - * with the starting pixel - */ - if (bayer) { - rect->width = ALIGN(rect->width, 2); - rect->height = ALIGN(rect->height, 2); - } - - if (fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) { - /* IFP bypass mode, no scaling */ - mf->width = rect->width; - mf->height = rect->height; - } else { - /* No upscaling */ - if (mf->width > rect->width) - mf->width = rect->width; - if (mf->height > rect->height) - mf->height = rect->height; - } - - dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__, - mf->width, mf->height, fmt->code); - - mf->code = fmt->code; - mf->colorspace = fmt->colorspace; - - return 0; -} - -static int mt9m111_s_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - const struct mt9m111_datafmt *fmt; - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); - struct v4l2_rect *rect = &mt9m111->rect; - int ret; - - mt9m111_try_fmt(sd, mf); - fmt = mt9m111_find_datafmt(mt9m111, mf->code); - /* try_fmt() guarantees fmt != NULL && fmt->code == mf->code */ - - ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code); - if (!ret) - ret = mt9m111_set_pixfmt(mt9m111, mf->code); - if (!ret) { - mt9m111->width = mf->width; - mt9m111->height = mf->height; - mt9m111->fmt = fmt; - } - - return ret; -} - -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 = container_of(sd, struct mt9m111, subdev); - - 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 int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - int ret; - - if (flip) - ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask); - else - ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask); - - return ret; -} - -static int mt9m111_get_global_gain(struct mt9m111 *mt9m111) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - 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 mt9m111 *mt9m111, int gain) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - u16 val; - - if (gain > 63 * 2 * 2) - return -EINVAL; - - 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 mt9m111 *mt9m111, int on) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - - if (on) - return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); - return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); -} - -static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - - if (on) - return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); - return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); -} - -static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct mt9m111 *mt9m111 = container_of(ctrl->handler, - struct mt9m111, hdl); - - switch (ctrl->id) { - case V4L2_CID_VFLIP: - return mt9m111_set_flip(mt9m111, ctrl->val, - MT9M111_RMB_MIRROR_ROWS); - case V4L2_CID_HFLIP: - return mt9m111_set_flip(mt9m111, ctrl->val, - MT9M111_RMB_MIRROR_COLS); - case V4L2_CID_GAIN: - return mt9m111_set_global_gain(mt9m111, ctrl->val); - case V4L2_CID_EXPOSURE_AUTO: - return mt9m111_set_autoexposure(mt9m111, ctrl->val); - case V4L2_CID_AUTO_WHITE_BALANCE: - return mt9m111_set_autowhitebalance(mt9m111, ctrl->val); - } - - return -EINVAL; -} - -static int mt9m111_suspend(struct mt9m111 *mt9m111) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - int ret; - - v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111)); - - ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); - if (!ret) - ret = reg_set(RESET, MT9M111_RESET_RESET_SOC | - MT9M111_RESET_OUTPUT_DISABLE | - MT9M111_RESET_ANALOG_STANDBY); - if (!ret) - ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); - - return ret; -} - -static void mt9m111_restore_state(struct mt9m111 *mt9m111) -{ - mt9m111_set_context(mt9m111, mt9m111->ctx); - mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code); - mt9m111_setup_geometry(mt9m111, &mt9m111->rect, - mt9m111->width, mt9m111->height, mt9m111->fmt->code); - v4l2_ctrl_handler_setup(&mt9m111->hdl); -} - -static int mt9m111_resume(struct mt9m111 *mt9m111) -{ - int ret = mt9m111_enable(mt9m111); - if (!ret) - ret = mt9m111_reset(mt9m111); - if (!ret) - mt9m111_restore_state(mt9m111); - - return ret; -} - -static int mt9m111_init(struct mt9m111 *mt9m111) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); - int ret; - - /* Default HIGHPOWER context */ - mt9m111->ctx = &context_b; - ret = mt9m111_enable(mt9m111); - if (!ret) - ret = mt9m111_reset(mt9m111); - if (!ret) - ret = mt9m111_set_context(mt9m111, mt9m111->ctx); - 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 i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - s32 data; - int ret; - - 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: - dev_err(&client->dev, - "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n", - data); - return -ENODEV; - } - - ret = mt9m111_init(mt9m111); - if (ret) - return ret; - return v4l2_ctrl_handler_setup(&mt9m111->hdl); -} - -static int mt9m111_s_power(struct v4l2_subdev *sd, int on) -{ - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = 0; - - mutex_lock(&mt9m111->power_lock); - - /* - * If the power count is modified from 0 to != 0 or from != 0 to 0, - * update the power state. - */ - if (mt9m111->power_count == !on) { - if (on) { - ret = mt9m111_resume(mt9m111); - if (ret) { - dev_err(&client->dev, - "Failed to resume the sensor: %d\n", ret); - goto out; - } - } else { - mt9m111_suspend(mt9m111); - } - } - - /* Update the power count. */ - mt9m111->power_count += on ? 1 : -1; - WARN_ON(mt9m111->power_count < 0); - -out: - mutex_unlock(&mt9m111->power_lock); - return ret; -} - -static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = { - .s_ctrl = mt9m111_s_ctrl, -}; - -static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = { - .g_chip_ident = mt9m111_g_chip_ident, - .s_power = mt9m111_s_power, -#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 int mt9m111_g_mbus_config(struct v4l2_subdev *sd, - struct v4l2_mbus_config *cfg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_link *icl = soc_camera_i2c_to_link(client); - - cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING | - V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH | - V4L2_MBUS_DATA_ACTIVE_HIGH; - cfg->type = V4L2_MBUS_PARALLEL; - cfg->flags = soc_camera_apply_board_flags(icl, cfg); - - 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, - .g_mbus_config = mt9m111_g_mbus_config, -}; - -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 i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - struct soc_camera_link *icl = soc_camera_i2c_to_link(client); - 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; - - v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops); - v4l2_ctrl_handler_init(&mt9m111->hdl, 5); - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, - V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); - mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, - V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32); - v4l2_ctrl_new_std_menu(&mt9m111->hdl, - &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0, - V4L2_EXPOSURE_AUTO); - mt9m111->subdev.ctrl_handler = &mt9m111->hdl; - if (mt9m111->hdl.error) { - int err = mt9m111->hdl.error; - - kfree(mt9m111); - return err; - } - - /* Second stage probe - when a capture adapter is there */ - 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]; - mt9m111->lastpage = -1; - mutex_init(&mt9m111->power_lock); - - ret = mt9m111_video_probe(client); - if (ret) { - v4l2_ctrl_handler_free(&mt9m111->hdl); - kfree(mt9m111); - } - - return ret; -} - -static int mt9m111_remove(struct i2c_client *client) -{ - struct mt9m111 *mt9m111 = to_mt9m111(client); - - v4l2_device_unregister_subdev(&mt9m111->subdev); - v4l2_ctrl_handler_free(&mt9m111->hdl); - 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, -}; - -module_i2c_driver(mt9m111_i2c_driver); - -MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver"); -MODULE_AUTHOR("Robert Jarzmik"); -MODULE_LICENSE("GPL"); |
