diff options
Diffstat (limited to 'drivers/media/video/mt9v032.c')
| -rw-r--r-- | drivers/media/video/mt9v032.c | 763 |
1 files changed, 0 insertions, 763 deletions
diff --git a/drivers/media/video/mt9v032.c b/drivers/media/video/mt9v032.c deleted file mode 100644 index 4ba4884c016e..000000000000 --- a/drivers/media/video/mt9v032.c +++ /dev/null @@ -1,763 +0,0 @@ -/* - * Driver for MT9V032 CMOS Image Sensor from Micron - * - * Copyright (C) 2010, Laurent Pinchart <laurent.pinchart@ideasonboard.com> - * - * Based on the MT9M001 driver, - * - * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> - * - * 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/delay.h> -#include <linux/i2c.h> -#include <linux/log2.h> -#include <linux/mutex.h> -#include <linux/slab.h> -#include <linux/videodev2.h> -#include <linux/v4l2-mediabus.h> -#include <linux/module.h> - -#include <media/mt9v032.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-device.h> -#include <media/v4l2-subdev.h> - -#define MT9V032_PIXEL_ARRAY_HEIGHT 492 -#define MT9V032_PIXEL_ARRAY_WIDTH 782 - -#define MT9V032_CHIP_VERSION 0x00 -#define MT9V032_CHIP_ID_REV1 0x1311 -#define MT9V032_CHIP_ID_REV3 0x1313 -#define MT9V032_COLUMN_START 0x01 -#define MT9V032_COLUMN_START_MIN 1 -#define MT9V032_COLUMN_START_DEF 1 -#define MT9V032_COLUMN_START_MAX 752 -#define MT9V032_ROW_START 0x02 -#define MT9V032_ROW_START_MIN 4 -#define MT9V032_ROW_START_DEF 5 -#define MT9V032_ROW_START_MAX 482 -#define MT9V032_WINDOW_HEIGHT 0x03 -#define MT9V032_WINDOW_HEIGHT_MIN 1 -#define MT9V032_WINDOW_HEIGHT_DEF 480 -#define MT9V032_WINDOW_HEIGHT_MAX 480 -#define MT9V032_WINDOW_WIDTH 0x04 -#define MT9V032_WINDOW_WIDTH_MIN 1 -#define MT9V032_WINDOW_WIDTH_DEF 752 -#define MT9V032_WINDOW_WIDTH_MAX 752 -#define MT9V032_HORIZONTAL_BLANKING 0x05 -#define MT9V032_HORIZONTAL_BLANKING_MIN 43 -#define MT9V032_HORIZONTAL_BLANKING_MAX 1023 -#define MT9V032_VERTICAL_BLANKING 0x06 -#define MT9V032_VERTICAL_BLANKING_MIN 4 -#define MT9V032_VERTICAL_BLANKING_MAX 3000 -#define MT9V032_CHIP_CONTROL 0x07 -#define MT9V032_CHIP_CONTROL_MASTER_MODE (1 << 3) -#define MT9V032_CHIP_CONTROL_DOUT_ENABLE (1 << 7) -#define MT9V032_CHIP_CONTROL_SEQUENTIAL (1 << 8) -#define MT9V032_SHUTTER_WIDTH1 0x08 -#define MT9V032_SHUTTER_WIDTH2 0x09 -#define MT9V032_SHUTTER_WIDTH_CONTROL 0x0a -#define MT9V032_TOTAL_SHUTTER_WIDTH 0x0b -#define MT9V032_TOTAL_SHUTTER_WIDTH_MIN 1 -#define MT9V032_TOTAL_SHUTTER_WIDTH_DEF 480 -#define MT9V032_TOTAL_SHUTTER_WIDTH_MAX 32767 -#define MT9V032_RESET 0x0c -#define MT9V032_READ_MODE 0x0d -#define MT9V032_READ_MODE_ROW_BIN_MASK (3 << 0) -#define MT9V032_READ_MODE_ROW_BIN_SHIFT 0 -#define MT9V032_READ_MODE_COLUMN_BIN_MASK (3 << 2) -#define MT9V032_READ_MODE_COLUMN_BIN_SHIFT 2 -#define MT9V032_READ_MODE_ROW_FLIP (1 << 4) -#define MT9V032_READ_MODE_COLUMN_FLIP (1 << 5) -#define MT9V032_READ_MODE_DARK_COLUMNS (1 << 6) -#define MT9V032_READ_MODE_DARK_ROWS (1 << 7) -#define MT9V032_PIXEL_OPERATION_MODE 0x0f -#define MT9V032_PIXEL_OPERATION_MODE_COLOR (1 << 2) -#define MT9V032_PIXEL_OPERATION_MODE_HDR (1 << 6) -#define MT9V032_ANALOG_GAIN 0x35 -#define MT9V032_ANALOG_GAIN_MIN 16 -#define MT9V032_ANALOG_GAIN_DEF 16 -#define MT9V032_ANALOG_GAIN_MAX 64 -#define MT9V032_MAX_ANALOG_GAIN 0x36 -#define MT9V032_MAX_ANALOG_GAIN_MAX 127 -#define MT9V032_FRAME_DARK_AVERAGE 0x42 -#define MT9V032_DARK_AVG_THRESH 0x46 -#define MT9V032_DARK_AVG_LOW_THRESH_MASK (255 << 0) -#define MT9V032_DARK_AVG_LOW_THRESH_SHIFT 0 -#define MT9V032_DARK_AVG_HIGH_THRESH_MASK (255 << 8) -#define MT9V032_DARK_AVG_HIGH_THRESH_SHIFT 8 -#define MT9V032_ROW_NOISE_CORR_CONTROL 0x70 -#define MT9V032_ROW_NOISE_CORR_ENABLE (1 << 5) -#define MT9V032_ROW_NOISE_CORR_USE_BLK_AVG (1 << 7) -#define MT9V032_PIXEL_CLOCK 0x74 -#define MT9V032_PIXEL_CLOCK_INV_LINE (1 << 0) -#define MT9V032_PIXEL_CLOCK_INV_FRAME (1 << 1) -#define MT9V032_PIXEL_CLOCK_XOR_LINE (1 << 2) -#define MT9V032_PIXEL_CLOCK_CONT_LINE (1 << 3) -#define MT9V032_PIXEL_CLOCK_INV_PXL_CLK (1 << 4) -#define MT9V032_TEST_PATTERN 0x7f -#define MT9V032_TEST_PATTERN_DATA_MASK (1023 << 0) -#define MT9V032_TEST_PATTERN_DATA_SHIFT 0 -#define MT9V032_TEST_PATTERN_USE_DATA (1 << 10) -#define MT9V032_TEST_PATTERN_GRAY_MASK (3 << 11) -#define MT9V032_TEST_PATTERN_GRAY_NONE (0 << 11) -#define MT9V032_TEST_PATTERN_GRAY_VERTICAL (1 << 11) -#define MT9V032_TEST_PATTERN_GRAY_HORIZONTAL (2 << 11) -#define MT9V032_TEST_PATTERN_GRAY_DIAGONAL (3 << 11) -#define MT9V032_TEST_PATTERN_ENABLE (1 << 13) -#define MT9V032_TEST_PATTERN_FLIP (1 << 14) -#define MT9V032_AEC_AGC_ENABLE 0xaf -#define MT9V032_AEC_ENABLE (1 << 0) -#define MT9V032_AGC_ENABLE (1 << 1) -#define MT9V032_THERMAL_INFO 0xc1 - -struct mt9v032 { - struct v4l2_subdev subdev; - struct media_pad pad; - - struct v4l2_mbus_framefmt format; - struct v4l2_rect crop; - - struct v4l2_ctrl_handler ctrls; - - struct mutex power_lock; - int power_count; - - struct mt9v032_platform_data *pdata; - u16 chip_control; - u16 aec_agc; -}; - -static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd) -{ - return container_of(sd, struct mt9v032, subdev); -} - -static int mt9v032_read(struct i2c_client *client, const u8 reg) -{ - s32 data = i2c_smbus_read_word_swapped(client, reg); - dev_dbg(&client->dev, "%s: read 0x%04x from 0x%02x\n", __func__, - data, reg); - return data; -} - -static int mt9v032_write(struct i2c_client *client, const u8 reg, - const u16 data) -{ - dev_dbg(&client->dev, "%s: writing 0x%04x to 0x%02x\n", __func__, - data, reg); - return i2c_smbus_write_word_swapped(client, reg, data); -} - -static int mt9v032_set_chip_control(struct mt9v032 *mt9v032, u16 clear, u16 set) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); - u16 value = (mt9v032->chip_control & ~clear) | set; - int ret; - - ret = mt9v032_write(client, MT9V032_CHIP_CONTROL, value); - if (ret < 0) - return ret; - - mt9v032->chip_control = value; - return 0; -} - -static int -mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); - u16 value = mt9v032->aec_agc; - int ret; - - if (enable) - value |= which; - else - value &= ~which; - - ret = mt9v032_write(client, MT9V032_AEC_AGC_ENABLE, value); - if (ret < 0) - return ret; - - mt9v032->aec_agc = value; - return 0; -} - -static int mt9v032_power_on(struct mt9v032 *mt9v032) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); - int ret; - - if (mt9v032->pdata->set_clock) { - mt9v032->pdata->set_clock(&mt9v032->subdev, 25000000); - udelay(1); - } - - /* Reset the chip and stop data read out */ - ret = mt9v032_write(client, MT9V032_RESET, 1); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_RESET, 0); - if (ret < 0) - return ret; - - return mt9v032_write(client, MT9V032_CHIP_CONTROL, 0); -} - -static void mt9v032_power_off(struct mt9v032 *mt9v032) -{ - if (mt9v032->pdata->set_clock) - mt9v032->pdata->set_clock(&mt9v032->subdev, 0); -} - -static int __mt9v032_set_power(struct mt9v032 *mt9v032, bool on) -{ - struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); - int ret; - - if (!on) { - mt9v032_power_off(mt9v032); - return 0; - } - - ret = mt9v032_power_on(mt9v032); - if (ret < 0) - return ret; - - /* Configure the pixel clock polarity */ - if (mt9v032->pdata && mt9v032->pdata->clk_pol) { - ret = mt9v032_write(client, MT9V032_PIXEL_CLOCK, - MT9V032_PIXEL_CLOCK_INV_PXL_CLK); - if (ret < 0) - return ret; - } - - /* Disable the noise correction algorithm and restore the controls. */ - ret = mt9v032_write(client, MT9V032_ROW_NOISE_CORR_CONTROL, 0); - if (ret < 0) - return ret; - - return v4l2_ctrl_handler_setup(&mt9v032->ctrls); -} - -/* ----------------------------------------------------------------------------- - * V4L2 subdev video operations - */ - -static struct v4l2_mbus_framefmt * -__mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_format(fh, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &mt9v032->format; - default: - return NULL; - } -} - -static struct v4l2_rect * -__mt9v032_get_pad_crop(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_crop(fh, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &mt9v032->crop; - default: - return NULL; - } -} - -static int mt9v032_s_stream(struct v4l2_subdev *subdev, int enable) -{ - const u16 mode = MT9V032_CHIP_CONTROL_MASTER_MODE - | MT9V032_CHIP_CONTROL_DOUT_ENABLE - | MT9V032_CHIP_CONTROL_SEQUENTIAL; - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - struct v4l2_mbus_framefmt *format = &mt9v032->format; - struct v4l2_rect *crop = &mt9v032->crop; - unsigned int hratio; - unsigned int vratio; - int ret; - - if (!enable) - return mt9v032_set_chip_control(mt9v032, mode, 0); - - /* Configure the window size and row/column bin */ - hratio = DIV_ROUND_CLOSEST(crop->width, format->width); - vratio = DIV_ROUND_CLOSEST(crop->height, format->height); - - ret = mt9v032_write(client, MT9V032_READ_MODE, - (hratio - 1) << MT9V032_READ_MODE_ROW_BIN_SHIFT | - (vratio - 1) << MT9V032_READ_MODE_COLUMN_BIN_SHIFT); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_COLUMN_START, crop->left); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_ROW_START, crop->top); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_WINDOW_WIDTH, crop->width); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_WINDOW_HEIGHT, crop->height); - if (ret < 0) - return ret; - - ret = mt9v032_write(client, MT9V032_HORIZONTAL_BLANKING, - max(43, 660 - crop->width)); - if (ret < 0) - return ret; - - /* Switch to master "normal" mode */ - return mt9v032_set_chip_control(mt9v032, 0, mode); -} - -static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->index > 0) - return -EINVAL; - - code->code = V4L2_MBUS_FMT_SGRBG10_1X10; - return 0; -} - -static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_frame_size_enum *fse) -{ - if (fse->index >= 8 || fse->code != V4L2_MBUS_FMT_SGRBG10_1X10) - return -EINVAL; - - fse->min_width = MT9V032_WINDOW_WIDTH_DEF / fse->index; - fse->max_width = fse->min_width; - fse->min_height = MT9V032_WINDOW_HEIGHT_DEF / fse->index; - fse->max_height = fse->min_height; - - return 0; -} - -static int mt9v032_get_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *format) -{ - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - - format->format = *__mt9v032_get_pad_format(mt9v032, fh, format->pad, - format->which); - return 0; -} - -static int mt9v032_set_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *format) -{ - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - struct v4l2_mbus_framefmt *__format; - struct v4l2_rect *__crop; - unsigned int width; - unsigned int height; - unsigned int hratio; - unsigned int vratio; - - __crop = __mt9v032_get_pad_crop(mt9v032, fh, format->pad, - format->which); - - /* Clamp the width and height to avoid dividing by zero. */ - width = clamp_t(unsigned int, ALIGN(format->format.width, 2), - max(__crop->width / 8, MT9V032_WINDOW_WIDTH_MIN), - __crop->width); - height = clamp_t(unsigned int, ALIGN(format->format.height, 2), - max(__crop->height / 8, MT9V032_WINDOW_HEIGHT_MIN), - __crop->height); - - hratio = DIV_ROUND_CLOSEST(__crop->width, width); - vratio = DIV_ROUND_CLOSEST(__crop->height, height); - - __format = __mt9v032_get_pad_format(mt9v032, fh, format->pad, - format->which); - __format->width = __crop->width / hratio; - __format->height = __crop->height / vratio; - - format->format = *__format; - - return 0; -} - -static int mt9v032_get_crop(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_crop *crop) -{ - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - - crop->rect = *__mt9v032_get_pad_crop(mt9v032, fh, crop->pad, - crop->which); - return 0; -} - -static int mt9v032_set_crop(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_crop *crop) -{ - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - struct v4l2_mbus_framefmt *__format; - struct v4l2_rect *__crop; - struct v4l2_rect rect; - - /* Clamp the crop rectangle boundaries and align them to a non multiple - * of 2 pixels to ensure a GRBG Bayer pattern. - */ - rect.left = clamp(ALIGN(crop->rect.left + 1, 2) - 1, - MT9V032_COLUMN_START_MIN, - MT9V032_COLUMN_START_MAX); - rect.top = clamp(ALIGN(crop->rect.top + 1, 2) - 1, - MT9V032_ROW_START_MIN, - MT9V032_ROW_START_MAX); - rect.width = clamp(ALIGN(crop->rect.width, 2), - MT9V032_WINDOW_WIDTH_MIN, - MT9V032_WINDOW_WIDTH_MAX); - rect.height = clamp(ALIGN(crop->rect.height, 2), - MT9V032_WINDOW_HEIGHT_MIN, - MT9V032_WINDOW_HEIGHT_MAX); - - rect.width = min(rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left); - rect.height = min(rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top); - - __crop = __mt9v032_get_pad_crop(mt9v032, fh, crop->pad, crop->which); - - if (rect.width != __crop->width || rect.height != __crop->height) { - /* Reset the output image size if the crop rectangle size has - * been modified. - */ - __format = __mt9v032_get_pad_format(mt9v032, fh, crop->pad, - crop->which); - __format->width = rect.width; - __format->height = rect.height; - } - - *__crop = rect; - crop->rect = rect; - - return 0; -} - -/* ----------------------------------------------------------------------------- - * V4L2 subdev control operations - */ - -#define V4L2_CID_TEST_PATTERN (V4L2_CID_USER_BASE | 0x1001) - -static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct mt9v032 *mt9v032 = - container_of(ctrl->handler, struct mt9v032, ctrls); - struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); - u16 data; - - switch (ctrl->id) { - case V4L2_CID_AUTOGAIN: - return mt9v032_update_aec_agc(mt9v032, MT9V032_AGC_ENABLE, - ctrl->val); - - case V4L2_CID_GAIN: - return mt9v032_write(client, MT9V032_ANALOG_GAIN, ctrl->val); - - case V4L2_CID_EXPOSURE_AUTO: - return mt9v032_update_aec_agc(mt9v032, MT9V032_AEC_ENABLE, - !ctrl->val); - - case V4L2_CID_EXPOSURE: - return mt9v032_write(client, MT9V032_TOTAL_SHUTTER_WIDTH, - ctrl->val); - - case V4L2_CID_TEST_PATTERN: - switch (ctrl->val) { - case 0: - data = 0; - break; - case 1: - data = MT9V032_TEST_PATTERN_GRAY_VERTICAL - | MT9V032_TEST_PATTERN_ENABLE; - break; - case 2: - data = MT9V032_TEST_PATTERN_GRAY_HORIZONTAL - | MT9V032_TEST_PATTERN_ENABLE; - break; - case 3: - data = MT9V032_TEST_PATTERN_GRAY_DIAGONAL - | MT9V032_TEST_PATTERN_ENABLE; - break; - default: - data = (ctrl->val << MT9V032_TEST_PATTERN_DATA_SHIFT) - | MT9V032_TEST_PATTERN_USE_DATA - | MT9V032_TEST_PATTERN_ENABLE - | MT9V032_TEST_PATTERN_FLIP; - break; - } - - return mt9v032_write(client, MT9V032_TEST_PATTERN, data); - } - - return 0; -} - -static struct v4l2_ctrl_ops mt9v032_ctrl_ops = { - .s_ctrl = mt9v032_s_ctrl, -}; - -static const struct v4l2_ctrl_config mt9v032_ctrls[] = { - { - .ops = &mt9v032_ctrl_ops, - .id = V4L2_CID_TEST_PATTERN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Test pattern", - .min = 0, - .max = 1023, - .step = 1, - .def = 0, - .flags = 0, - } -}; - -/* ----------------------------------------------------------------------------- - * V4L2 subdev core operations - */ - -static int mt9v032_set_power(struct v4l2_subdev *subdev, int on) -{ - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - int ret = 0; - - mutex_lock(&mt9v032->power_lock); - - /* If the power count is modified from 0 to != 0 or from != 0 to 0, - * update the power state. - */ - if (mt9v032->power_count == !on) { - ret = __mt9v032_set_power(mt9v032, !!on); - if (ret < 0) - goto done; - } - - /* Update the power count. */ - mt9v032->power_count += on ? 1 : -1; - WARN_ON(mt9v032->power_count < 0); - -done: - mutex_unlock(&mt9v032->power_lock); - return ret; -} - -/* ----------------------------------------------------------------------------- - * V4L2 subdev internal operations - */ - -static int mt9v032_registered(struct v4l2_subdev *subdev) -{ - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - s32 data; - int ret; - - dev_info(&client->dev, "Probing MT9V032 at address 0x%02x\n", - client->addr); - - ret = mt9v032_power_on(mt9v032); - if (ret < 0) { - dev_err(&client->dev, "MT9V032 power up failed\n"); - return ret; - } - - /* Read and check the sensor version */ - data = mt9v032_read(client, MT9V032_CHIP_VERSION); - if (data != MT9V032_CHIP_ID_REV1 && data != MT9V032_CHIP_ID_REV3) { - dev_err(&client->dev, "MT9V032 not detected, wrong version " - "0x%04x\n", data); - return -ENODEV; - } - - mt9v032_power_off(mt9v032); - - dev_info(&client->dev, "MT9V032 detected at address 0x%02x\n", - client->addr); - - return ret; -} - -static int mt9v032_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) -{ - struct v4l2_mbus_framefmt *format; - struct v4l2_rect *crop; - - crop = v4l2_subdev_get_try_crop(fh, 0); - crop->left = MT9V032_COLUMN_START_DEF; - crop->top = MT9V032_ROW_START_DEF; - crop->width = MT9V032_WINDOW_WIDTH_DEF; - crop->height = MT9V032_WINDOW_HEIGHT_DEF; - - format = v4l2_subdev_get_try_format(fh, 0); - format->code = V4L2_MBUS_FMT_SGRBG10_1X10; - format->width = MT9V032_WINDOW_WIDTH_DEF; - format->height = MT9V032_WINDOW_HEIGHT_DEF; - format->field = V4L2_FIELD_NONE; - format->colorspace = V4L2_COLORSPACE_SRGB; - - return mt9v032_set_power(subdev, 1); -} - -static int mt9v032_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) -{ - return mt9v032_set_power(subdev, 0); -} - -static struct v4l2_subdev_core_ops mt9v032_subdev_core_ops = { - .s_power = mt9v032_set_power, -}; - -static struct v4l2_subdev_video_ops mt9v032_subdev_video_ops = { - .s_stream = mt9v032_s_stream, -}; - -static struct v4l2_subdev_pad_ops mt9v032_subdev_pad_ops = { - .enum_mbus_code = mt9v032_enum_mbus_code, - .enum_frame_size = mt9v032_enum_frame_size, - .get_fmt = mt9v032_get_format, - .set_fmt = mt9v032_set_format, - .get_crop = mt9v032_get_crop, - .set_crop = mt9v032_set_crop, -}; - -static struct v4l2_subdev_ops mt9v032_subdev_ops = { - .core = &mt9v032_subdev_core_ops, - .video = &mt9v032_subdev_video_ops, - .pad = &mt9v032_subdev_pad_ops, -}; - -static const struct v4l2_subdev_internal_ops mt9v032_subdev_internal_ops = { - .registered = mt9v032_registered, - .open = mt9v032_open, - .close = mt9v032_close, -}; - -/* ----------------------------------------------------------------------------- - * Driver initialization and probing - */ - -static int mt9v032_probe(struct i2c_client *client, - const struct i2c_device_id *did) -{ - struct mt9v032 *mt9v032; - unsigned int i; - int ret; - - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_WORD_DATA)) { - dev_warn(&client->adapter->dev, - "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); - return -EIO; - } - - mt9v032 = kzalloc(sizeof(*mt9v032), GFP_KERNEL); - if (!mt9v032) - return -ENOMEM; - - mutex_init(&mt9v032->power_lock); - mt9v032->pdata = client->dev.platform_data; - - v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 4); - - v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, - V4L2_CID_AUTOGAIN, 0, 1, 1, 1); - v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, - V4L2_CID_GAIN, MT9V032_ANALOG_GAIN_MIN, - MT9V032_ANALOG_GAIN_MAX, 1, MT9V032_ANALOG_GAIN_DEF); - v4l2_ctrl_new_std_menu(&mt9v032->ctrls, &mt9v032_ctrl_ops, - V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0, - V4L2_EXPOSURE_AUTO); - v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, - V4L2_CID_EXPOSURE, MT9V032_TOTAL_SHUTTER_WIDTH_MIN, - MT9V032_TOTAL_SHUTTER_WIDTH_MAX, 1, - MT9V032_TOTAL_SHUTTER_WIDTH_DEF); - - for (i = 0; i < ARRAY_SIZE(mt9v032_ctrls); ++i) - v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_ctrls[i], NULL); - - mt9v032->subdev.ctrl_handler = &mt9v032->ctrls; - - if (mt9v032->ctrls.error) - printk(KERN_INFO "%s: control initialization error %d\n", - __func__, mt9v032->ctrls.error); - - mt9v032->crop.left = MT9V032_COLUMN_START_DEF; - mt9v032->crop.top = MT9V032_ROW_START_DEF; - mt9v032->crop.width = MT9V032_WINDOW_WIDTH_DEF; - mt9v032->crop.height = MT9V032_WINDOW_HEIGHT_DEF; - - mt9v032->format.code = V4L2_MBUS_FMT_SGRBG10_1X10; - mt9v032->format.width = MT9V032_WINDOW_WIDTH_DEF; - mt9v032->format.height = MT9V032_WINDOW_HEIGHT_DEF; - mt9v032->format.field = V4L2_FIELD_NONE; - mt9v032->format.colorspace = V4L2_COLORSPACE_SRGB; - - mt9v032->aec_agc = MT9V032_AEC_ENABLE | MT9V032_AGC_ENABLE; - - v4l2_i2c_subdev_init(&mt9v032->subdev, client, &mt9v032_subdev_ops); - mt9v032->subdev.internal_ops = &mt9v032_subdev_internal_ops; - mt9v032->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - mt9v032->pad.flags = MEDIA_PAD_FL_SOURCE; - ret = media_entity_init(&mt9v032->subdev.entity, 1, &mt9v032->pad, 0); - if (ret < 0) - kfree(mt9v032); - - return ret; -} - -static int mt9v032_remove(struct i2c_client *client) -{ - struct v4l2_subdev *subdev = i2c_get_clientdata(client); - struct mt9v032 *mt9v032 = to_mt9v032(subdev); - - v4l2_device_unregister_subdev(subdev); - media_entity_cleanup(&subdev->entity); - kfree(mt9v032); - return 0; -} - -static const struct i2c_device_id mt9v032_id[] = { - { "mt9v032", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, mt9v032_id); - -static struct i2c_driver mt9v032_driver = { - .driver = { - .name = "mt9v032", - }, - .probe = mt9v032_probe, - .remove = mt9v032_remove, - .id_table = mt9v032_id, -}; - -module_i2c_driver(mt9v032_driver); - -MODULE_DESCRIPTION("Aptina MT9V032 Camera driver"); -MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>"); -MODULE_LICENSE("GPL"); |