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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 16:23:43 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:42:14 -0300
commitcb7a01ac324bf2ee2c666f37ac867e4135f9785a (patch)
tree7246b915a9334d4bc823c93ba9acab65ef882678 /drivers/media/video/mt9v032.c
parentf0af8fa4dad0839f844fd0633e1936493f6d685a (diff)
[media] move i2c files into drivers/media/i2c
Move ancillary I2C drivers into drivers/media/i2c, in order to better organize them. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/mt9v032.c')
-rw-r--r--drivers/media/video/mt9v032.c763
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");