Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for MT9V022, MT9V024, MT9V032, and MT9V034 CMOS Image Sensors
*
* Copyright (C) 2010, Laurent Pinchart <laurent.pinchart@ideasonboard.com>
*
* Based on the MT9M001 driver,
*
* Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/log2.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/v4l2-mediabus.h>
#include <linux/module.h>
#include <media/i2c/mt9v032.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
/* The first four rows are black rows. The active area spans 753x481 pixels. */
#define MT9V032_PIXEL_ARRAY_HEIGHT 485
#define MT9V032_PIXEL_ARRAY_WIDTH 753
#define MT9V032_SYSCLK_FREQ_DEF 26600000
#define MT9V032_CHIP_VERSION 0x00
#define MT9V032_CHIP_ID_REV1 0x1311
#define MT9V032_CHIP_ID_REV3 0x1313
#define MT9V034_CHIP_ID_REV1 0X1324
#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 MT9V034_HORIZONTAL_BLANKING_MIN 61
#define MT9V032_HORIZONTAL_BLANKING_DEF 94
#define MT9V032_HORIZONTAL_BLANKING_MAX 1023
#define MT9V032_VERTICAL_BLANKING 0x06
#define MT9V032_VERTICAL_BLANKING_MIN 4
#define MT9V034_VERTICAL_BLANKING_MIN 2
#define MT9V032_VERTICAL_BLANKING_DEF 45
#define MT9V032_VERTICAL_BLANKING_MAX 3000
#define MT9V034_VERTICAL_BLANKING_MAX 32288
#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 MT9V034_TOTAL_SHUTTER_WIDTH_MIN 0
#define MT9V032_TOTAL_SHUTTER_WIDTH_DEF 480
#define MT9V032_TOTAL_SHUTTER_WIDTH_MAX 32767
#define MT9V034_TOTAL_SHUTTER_WIDTH_MAX 32765
#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_READ_MODE_RESERVED 0x0300
#define MT9V032_PIXEL_OPERATION_MODE 0x0f
#define MT9V034_PIXEL_OPERATION_MODE_HDR (1 << 0)
#define MT9V034_PIXEL_OPERATION_MODE_COLOR (1 << 1)
#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 MT9V034_ROW_NOISE_CORR_ENABLE (1 << 0)
#define MT9V034_ROW_NOISE_CORR_USE_BLK_AVG (1 << 1)
#define MT9V032_ROW_NOISE_CORR_ENABLE (1 << 5)
#define MT9V032_ROW_NOISE_CORR_USE_BLK_AVG (1 << 7)
#define MT9V032_PIXEL_CLOCK 0x74
#define MT9V034_PIXEL_CLOCK 0x72
#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_AEGC_DESIRED_BIN 0xa5
#define MT9V032_AEC_UPDATE_FREQUENCY 0xa6
#define MT9V032_AEC_LPF 0xa8
#define MT9V032_AGC_UPDATE_FREQUENCY 0xa9
#define MT9V032_AGC_LPF 0xaa
#define MT9V032_AEC_AGC_ENABLE 0xaf
#define MT9V032_AEC_ENABLE (1 << 0)
#define MT9V032_AGC_ENABLE (1 << 1)
#define MT9V034_AEC_MAX_SHUTTER_WIDTH 0xad
#define MT9V032_AEC_MAX_SHUTTER_WIDTH 0xbd
#define MT9V032_THERMAL_INFO 0xc1
enum mt9v032_model {
<------>MT9V032_MODEL_V022_COLOR, /* MT9V022IX7ATC */
<------>MT9V032_MODEL_V022_MONO, /* MT9V022IX7ATM */
<------>MT9V032_MODEL_V024_COLOR, /* MT9V024IA7XTC */
<------>MT9V032_MODEL_V024_MONO, /* MT9V024IA7XTM */
<------>MT9V032_MODEL_V032_COLOR, /* MT9V032C12STM */
<------>MT9V032_MODEL_V032_MONO, /* MT9V032C12STC */
<------>MT9V032_MODEL_V034_COLOR,
<------>MT9V032_MODEL_V034_MONO,
};
struct mt9v032_model_version {
<------>unsigned int version;
<------>const char *name;
};
struct mt9v032_model_data {
<------>unsigned int min_row_time;
<------>unsigned int min_hblank;
<------>unsigned int min_vblank;
<------>unsigned int max_vblank;
<------>unsigned int min_shutter;
<------>unsigned int max_shutter;
<------>unsigned int pclk_reg;
<------>unsigned int aec_max_shutter_reg;
<------>const struct v4l2_ctrl_config * const aec_max_shutter_v4l2_ctrl;
};
struct mt9v032_model_info {
<------>const struct mt9v032_model_data *data;
<------>bool color;
};
static const struct mt9v032_model_version mt9v032_versions[] = {
<------>{ MT9V032_CHIP_ID_REV1, "MT9V022/MT9V032 rev1/2" },
<------>{ MT9V032_CHIP_ID_REV3, "MT9V022/MT9V032 rev3" },
<------>{ MT9V034_CHIP_ID_REV1, "MT9V024/MT9V034 rev1" },
};
struct mt9v032 {
<------>struct v4l2_subdev subdev;
<------>struct media_pad pad;
<------>struct v4l2_mbus_framefmt format;
<------>struct v4l2_rect crop;
<------>unsigned int hratio;
<------>unsigned int vratio;
<------>struct v4l2_ctrl_handler ctrls;
<------>struct {
<------><------>struct v4l2_ctrl *link_freq;
<------><------>struct v4l2_ctrl *pixel_rate;
<------>};
<------>struct mutex power_lock;
<------>int power_count;
<------>struct regmap *regmap;
<------>struct clk *clk;
<------>struct gpio_desc *reset_gpio;
<------>struct gpio_desc *standby_gpio;
<------>struct mt9v032_platform_data *pdata;
<------>const struct mt9v032_model_info *model;
<------>const struct mt9v032_model_version *version;
<------>u32 sysclk;
<------>u16 aec_agc;
<------>u16 hblank;
<------>struct {
<------><------>struct v4l2_ctrl *test_pattern;
<------><------>struct v4l2_ctrl *test_pattern_color;
<------>};
};
static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd)
{
<------>return container_of(sd, struct mt9v032, subdev);
}
static int
mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable)
{
<------>struct regmap *map = mt9v032->regmap;
<------>u16 value = mt9v032->aec_agc;
<------>int ret;
<------>if (enable)
<------><------>value |= which;
<------>else
<------><------>value &= ~which;
<------>ret = regmap_write(map, MT9V032_AEC_AGC_ENABLE, value);
<------>if (ret < 0)
<------><------>return ret;
<------>mt9v032->aec_agc = value;
<------>return 0;
}
static int
mt9v032_update_hblank(struct mt9v032 *mt9v032)
{
<------>struct v4l2_rect *crop = &mt9v032->crop;
<------>unsigned int min_hblank = mt9v032->model->data->min_hblank;
<------>unsigned int hblank;
<------>if (mt9v032->version->version == MT9V034_CHIP_ID_REV1)
<------><------>min_hblank += (mt9v032->hratio - 1) * 10;
<------>min_hblank = max_t(int, mt9v032->model->data->min_row_time - crop->width,
<------><------><------> min_hblank);
<------>hblank = max_t(unsigned int, mt9v032->hblank, min_hblank);
<------>return regmap_write(mt9v032->regmap, MT9V032_HORIZONTAL_BLANKING,
<------><------><------> hblank);
}
static int mt9v032_power_on(struct mt9v032 *mt9v032)
{
<------>struct regmap *map = mt9v032->regmap;
<------>int ret;
<------>gpiod_set_value_cansleep(mt9v032->reset_gpio, 1);
<------>ret = clk_set_rate(mt9v032->clk, mt9v032->sysclk);
<------>if (ret < 0)
<------><------>return ret;
<------>/* System clock has to be enabled before releasing the reset */
<------>ret = clk_prepare_enable(mt9v032->clk);
<------>if (ret)
<------><------>return ret;
<------>udelay(1);
<------>if (mt9v032->reset_gpio) {
<------><------>gpiod_set_value_cansleep(mt9v032->reset_gpio, 0);
<------><------>/* After releasing reset we need to wait 10 clock cycles
<------><------> * before accessing the sensor over I2C. As the minimum SYSCLK
<------><------> * frequency is 13MHz, waiting 1µs will be enough in the worst
<------><------> * case.
<------><------> */
<------><------>udelay(1);
<------>}
<------>/* Reset the chip and stop data read out */
<------>ret = regmap_write(map, MT9V032_RESET, 1);
<------>if (ret < 0)
<------><------>goto err;
<------>ret = regmap_write(map, MT9V032_RESET, 0);
<------>if (ret < 0)
<------><------>goto err;
<------>ret = regmap_write(map, MT9V032_CHIP_CONTROL,
<------><------><------> MT9V032_CHIP_CONTROL_MASTER_MODE);
<------>if (ret < 0)
<------><------>goto err;
<------>return 0;
err:
<------>clk_disable_unprepare(mt9v032->clk);
<------>return ret;
}
static void mt9v032_power_off(struct mt9v032 *mt9v032)
{
<------>clk_disable_unprepare(mt9v032->clk);
}
static int __mt9v032_set_power(struct mt9v032 *mt9v032, bool on)
{
<------>struct regmap *map = mt9v032->regmap;
<------>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 = regmap_write(map, mt9v032->model->data->pclk_reg,
<------><------><------><------>MT9V032_PIXEL_CLOCK_INV_PXL_CLK);
<------><------>if (ret < 0)
<------><------><------>return ret;
<------>}
<------>/* Disable the noise correction algorithm and restore the controls. */
<------>ret = regmap_write(map, 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_pad_config *cfg,
<------><------><------> unsigned int pad, enum v4l2_subdev_format_whence which)
{
<------>switch (which) {
<------>case V4L2_SUBDEV_FORMAT_TRY:
<------><------>return v4l2_subdev_get_try_format(&mt9v032->subdev, cfg, 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_pad_config *cfg,
<------><------> unsigned int pad, enum v4l2_subdev_format_whence which)
{
<------>switch (which) {
<------>case V4L2_SUBDEV_FORMAT_TRY:
<------><------>return v4l2_subdev_get_try_crop(&mt9v032->subdev, cfg, 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_DOUT_ENABLE
<------><------> | MT9V032_CHIP_CONTROL_SEQUENTIAL;
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>struct v4l2_rect *crop = &mt9v032->crop;
<------>struct regmap *map = mt9v032->regmap;
<------>unsigned int hbin;
<------>unsigned int vbin;
<------>int ret;
<------>if (!enable)
<------><------>return regmap_update_bits(map, MT9V032_CHIP_CONTROL, mode, 0);
<------>/* Configure the window size and row/column bin */
<------>hbin = fls(mt9v032->hratio) - 1;
<------>vbin = fls(mt9v032->vratio) - 1;
<------>ret = regmap_update_bits(map, MT9V032_READ_MODE,
<------><------><------><------> ~MT9V032_READ_MODE_RESERVED,
<------><------><------><------> hbin << MT9V032_READ_MODE_COLUMN_BIN_SHIFT |
<------><------><------><------> vbin << MT9V032_READ_MODE_ROW_BIN_SHIFT);
<------>if (ret < 0)
<------><------>return ret;
<------>ret = regmap_write(map, MT9V032_COLUMN_START, crop->left);
<------>if (ret < 0)
<------><------>return ret;
<------>ret = regmap_write(map, MT9V032_ROW_START, crop->top);
<------>if (ret < 0)
<------><------>return ret;
<------>ret = regmap_write(map, MT9V032_WINDOW_WIDTH, crop->width);
<------>if (ret < 0)
<------><------>return ret;
<------>ret = regmap_write(map, MT9V032_WINDOW_HEIGHT, crop->height);
<------>if (ret < 0)
<------><------>return ret;
<------>ret = mt9v032_update_hblank(mt9v032);
<------>if (ret < 0)
<------><------>return ret;
<------>/* Switch to master "normal" mode */
<------>return regmap_update_bits(map, MT9V032_CHIP_CONTROL, mode, mode);
}
static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_mbus_code_enum *code)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>if (code->index > 0)
<------><------>return -EINVAL;
<------>code->code = mt9v032->format.code;
<------>return 0;
}
static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_frame_size_enum *fse)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>if (fse->index >= 3)
<------><------>return -EINVAL;
<------>if (mt9v032->format.code != fse->code)
<------><------>return -EINVAL;
<------>fse->min_width = MT9V032_WINDOW_WIDTH_DEF / (1 << fse->index);
<------>fse->max_width = fse->min_width;
<------>fse->min_height = MT9V032_WINDOW_HEIGHT_DEF / (1 << fse->index);
<------>fse->max_height = fse->min_height;
<------>return 0;
}
static int mt9v032_get_format(struct v4l2_subdev *subdev,
<------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------> struct v4l2_subdev_format *format)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>format->format = *__mt9v032_get_pad_format(mt9v032, cfg, format->pad,
<------><------><------><------><------><------> format->which);
<------>return 0;
}
static void mt9v032_configure_pixel_rate(struct mt9v032 *mt9v032)
{
<------>struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
<------>int ret;
<------>ret = v4l2_ctrl_s_ctrl_int64(mt9v032->pixel_rate,
<------><------><------><------> mt9v032->sysclk / mt9v032->hratio);
<------>if (ret < 0)
<------><------>dev_warn(&client->dev, "failed to set pixel rate (%d)\n", ret);
}
static unsigned int mt9v032_calc_ratio(unsigned int input, unsigned int output)
{
<------>/* Compute the power-of-two binning factor closest to the input size to
<------> * output size ratio. Given that the output size is bounded by input/4
<------> * and input, a generic implementation would be an ineffective luxury.
<------> */
<------>if (output * 3 > input * 2)
<------><------>return 1;
<------>if (output * 3 > input)
<------><------>return 2;
<------>return 4;
}
static int mt9v032_set_format(struct v4l2_subdev *subdev,
<------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------> 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, cfg, format->pad,
<------><------><------><------><------>format->which);
<------>/* Clamp the width and height to avoid dividing by zero. */
<------>width = clamp(ALIGN(format->format.width, 2),
<------><------> max_t(unsigned int, __crop->width / 4,
<------><------><------> MT9V032_WINDOW_WIDTH_MIN),
<------><------> __crop->width);
<------>height = clamp(ALIGN(format->format.height, 2),
<------><------> max_t(unsigned int, __crop->height / 4,
<------><------><------> MT9V032_WINDOW_HEIGHT_MIN),
<------><------> __crop->height);
<------>hratio = mt9v032_calc_ratio(__crop->width, width);
<------>vratio = mt9v032_calc_ratio(__crop->height, height);
<------>__format = __mt9v032_get_pad_format(mt9v032, cfg, format->pad,
<------><------><------><------><------> format->which);
<------>__format->width = __crop->width / hratio;
<------>__format->height = __crop->height / vratio;
<------>if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
<------><------>mt9v032->hratio = hratio;
<------><------>mt9v032->vratio = vratio;
<------><------>mt9v032_configure_pixel_rate(mt9v032);
<------>}
<------>format->format = *__format;
<------>return 0;
}
static int mt9v032_get_selection(struct v4l2_subdev *subdev,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_selection *sel)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>if (sel->target != V4L2_SEL_TGT_CROP)
<------><------>return -EINVAL;
<------>sel->r = *__mt9v032_get_pad_crop(mt9v032, cfg, sel->pad, sel->which);
<------>return 0;
}
static int mt9v032_set_selection(struct v4l2_subdev *subdev,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_selection *sel)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>struct v4l2_mbus_framefmt *__format;
<------>struct v4l2_rect *__crop;
<------>struct v4l2_rect rect;
<------>if (sel->target != V4L2_SEL_TGT_CROP)
<------><------>return -EINVAL;
<------>/* 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(sel->r.left + 1, 2) - 1,
<------><------><------> MT9V032_COLUMN_START_MIN,
<------><------><------> MT9V032_COLUMN_START_MAX);
<------>rect.top = clamp(ALIGN(sel->r.top + 1, 2) - 1,
<------><------><------> MT9V032_ROW_START_MIN,
<------><------><------> MT9V032_ROW_START_MAX);
<------>rect.width = clamp_t(unsigned int, ALIGN(sel->r.width, 2),
<------><------><------> MT9V032_WINDOW_WIDTH_MIN,
<------><------><------> MT9V032_WINDOW_WIDTH_MAX);
<------>rect.height = clamp_t(unsigned int, ALIGN(sel->r.height, 2),
<------><------><------> MT9V032_WINDOW_HEIGHT_MIN,
<------><------><------> MT9V032_WINDOW_HEIGHT_MAX);
<------>rect.width = min_t(unsigned int,
<------><------><------> rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
<------>rect.height = min_t(unsigned int,
<------><------><------> rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
<------>__crop = __mt9v032_get_pad_crop(mt9v032, cfg, sel->pad, sel->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, cfg, sel->pad,
<------><------><------><------><------><------> sel->which);
<------><------>__format->width = rect.width;
<------><------>__format->height = rect.height;
<------><------>if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
<------><------><------>mt9v032->hratio = 1;
<------><------><------>mt9v032->vratio = 1;
<------><------><------>mt9v032_configure_pixel_rate(mt9v032);
<------><------>}
<------>}
<------>*__crop = rect;
<------>sel->r = rect;
<------>return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 subdev control operations
*/
#define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_BASE | 0x1001)
/*
* Value between 1 and 64 to set the desired bin. This is effectively a measure
* of how bright the image is supposed to be. Both AGC and AEC try to reach
* this.
*/
#define V4L2_CID_AEGC_DESIRED_BIN (V4L2_CID_USER_BASE | 0x1002)
/*
* LPF is the low pass filter capability of the chip. Both AEC and AGC have
* this setting. This limits the speed in which AGC/AEC adjust their settings.
* Possible values are 0-2. 0 means no LPF. For 1 and 2 this equation is used:
*
* if |(calculated new exp - current exp)| > (current exp / 4)
* next exp = calculated new exp
* else
* next exp = current exp + ((calculated new exp - current exp) / 2^LPF)
*/
#define V4L2_CID_AEC_LPF (V4L2_CID_USER_BASE | 0x1003)
#define V4L2_CID_AGC_LPF (V4L2_CID_USER_BASE | 0x1004)
/*
* Value between 0 and 15. This is the number of frames being skipped before
* updating the auto exposure/gain.
*/
#define V4L2_CID_AEC_UPDATE_INTERVAL (V4L2_CID_USER_BASE | 0x1005)
#define V4L2_CID_AGC_UPDATE_INTERVAL (V4L2_CID_USER_BASE | 0x1006)
/*
* Maximum shutter width used for AEC.
*/
#define V4L2_CID_AEC_MAX_SHUTTER_WIDTH (V4L2_CID_USER_BASE | 0x1007)
static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl)
{
<------>struct mt9v032 *mt9v032 =
<------><------><------>container_of(ctrl->handler, struct mt9v032, ctrls);
<------>struct regmap *map = mt9v032->regmap;
<------>u32 freq;
<------>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 regmap_write(map, 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 regmap_write(map, MT9V032_TOTAL_SHUTTER_WIDTH,
<------><------><------><------> ctrl->val);
<------>case V4L2_CID_HBLANK:
<------><------>mt9v032->hblank = ctrl->val;
<------><------>return mt9v032_update_hblank(mt9v032);
<------>case V4L2_CID_VBLANK:
<------><------>return regmap_write(map, MT9V032_VERTICAL_BLANKING,
<------><------><------><------> ctrl->val);
<------>case V4L2_CID_PIXEL_RATE:
<------>case V4L2_CID_LINK_FREQ:
<------><------>if (mt9v032->link_freq == NULL)
<------><------><------>break;
<------><------>freq = mt9v032->pdata->link_freqs[mt9v032->link_freq->val];
<------><------>*mt9v032->pixel_rate->p_new.p_s64 = freq;
<------><------>mt9v032->sysclk = freq;
<------><------>break;
<------>case V4L2_CID_TEST_PATTERN:
<------><------>switch (mt9v032->test_pattern->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 = (mt9v032->test_pattern_color->val <<
<------><------><------><------>MT9V032_TEST_PATTERN_DATA_SHIFT)
<------><------><------> | MT9V032_TEST_PATTERN_USE_DATA
<------><------><------> | MT9V032_TEST_PATTERN_ENABLE
<------><------><------> | MT9V032_TEST_PATTERN_FLIP;
<------><------><------>break;
<------><------>}
<------><------>return regmap_write(map, MT9V032_TEST_PATTERN, data);
<------>case V4L2_CID_AEGC_DESIRED_BIN:
<------><------>return regmap_write(map, MT9V032_AEGC_DESIRED_BIN, ctrl->val);
<------>case V4L2_CID_AEC_LPF:
<------><------>return regmap_write(map, MT9V032_AEC_LPF, ctrl->val);
<------>case V4L2_CID_AGC_LPF:
<------><------>return regmap_write(map, MT9V032_AGC_LPF, ctrl->val);
<------>case V4L2_CID_AEC_UPDATE_INTERVAL:
<------><------>return regmap_write(map, MT9V032_AEC_UPDATE_FREQUENCY,
<------><------><------><------> ctrl->val);
<------>case V4L2_CID_AGC_UPDATE_INTERVAL:
<------><------>return regmap_write(map, MT9V032_AGC_UPDATE_FREQUENCY,
<------><------><------><------> ctrl->val);
<------>case V4L2_CID_AEC_MAX_SHUTTER_WIDTH:
<------><------>return regmap_write(map,
<------><------><------><------> mt9v032->model->data->aec_max_shutter_reg,
<------><------><------><------> ctrl->val);
<------>}
<------>return 0;
}
static const struct v4l2_ctrl_ops mt9v032_ctrl_ops = {
<------>.s_ctrl = mt9v032_s_ctrl,
};
static const char * const mt9v032_test_pattern_menu[] = {
<------>"Disabled",
<------>"Gray Vertical Shade",
<------>"Gray Horizontal Shade",
<------>"Gray Diagonal Shade",
<------>"Plain",
};
static const struct v4l2_ctrl_config mt9v032_test_pattern_color = {
<------>.ops = &mt9v032_ctrl_ops,
<------>.id = V4L2_CID_TEST_PATTERN_COLOR,
<------>.type = V4L2_CTRL_TYPE_INTEGER,
<------>.name = "Test Pattern Color",
<------>.min = 0,
<------>.max = 1023,
<------>.step = 1,
<------>.def = 0,
<------>.flags = 0,
};
static const struct v4l2_ctrl_config mt9v032_aegc_controls[] = {
<------>{
<------><------>.ops = &mt9v032_ctrl_ops,
<------><------>.id = V4L2_CID_AEGC_DESIRED_BIN,
<------><------>.type = V4L2_CTRL_TYPE_INTEGER,
<------><------>.name = "AEC/AGC Desired Bin",
<------><------>.min = 1,
<------><------>.max = 64,
<------><------>.step = 1,
<------><------>.def = 58,
<------><------>.flags = 0,
<------>}, {
<------><------>.ops = &mt9v032_ctrl_ops,
<------><------>.id = V4L2_CID_AEC_LPF,
<------><------>.type = V4L2_CTRL_TYPE_INTEGER,
<------><------>.name = "AEC Low Pass Filter",
<------><------>.min = 0,
<------><------>.max = 2,
<------><------>.step = 1,
<------><------>.def = 0,
<------><------>.flags = 0,
<------>}, {
<------><------>.ops = &mt9v032_ctrl_ops,
<------><------>.id = V4L2_CID_AGC_LPF,
<------><------>.type = V4L2_CTRL_TYPE_INTEGER,
<------><------>.name = "AGC Low Pass Filter",
<------><------>.min = 0,
<------><------>.max = 2,
<------><------>.step = 1,
<------><------>.def = 2,
<------><------>.flags = 0,
<------>}, {
<------><------>.ops = &mt9v032_ctrl_ops,
<------><------>.id = V4L2_CID_AEC_UPDATE_INTERVAL,
<------><------>.type = V4L2_CTRL_TYPE_INTEGER,
<------><------>.name = "AEC Update Interval",
<------><------>.min = 0,
<------><------>.max = 16,
<------><------>.step = 1,
<------><------>.def = 2,
<------><------>.flags = 0,
<------>}, {
<------><------>.ops = &mt9v032_ctrl_ops,
<------><------>.id = V4L2_CID_AGC_UPDATE_INTERVAL,
<------><------>.type = V4L2_CTRL_TYPE_INTEGER,
<------><------>.name = "AGC Update Interval",
<------><------>.min = 0,
<------><------>.max = 16,
<------><------>.step = 1,
<------><------>.def = 2,
<------><------>.flags = 0,
<------>}
};
static const struct v4l2_ctrl_config mt9v032_aec_max_shutter_width = {
<------>.ops = &mt9v032_ctrl_ops,
<------>.id = V4L2_CID_AEC_MAX_SHUTTER_WIDTH,
<------>.type = V4L2_CTRL_TYPE_INTEGER,
<------>.name = "AEC Max Shutter Width",
<------>.min = 1,
<------>.max = 2047,
<------>.step = 1,
<------>.def = 480,
<------>.flags = 0,
};
static const struct v4l2_ctrl_config mt9v034_aec_max_shutter_width = {
<------>.ops = &mt9v032_ctrl_ops,
<------>.id = V4L2_CID_AEC_MAX_SHUTTER_WIDTH,
<------>.type = V4L2_CTRL_TYPE_INTEGER,
<------>.name = "AEC Max Shutter Width",
<------>.min = 1,
<------>.max = 32765,
<------>.step = 1,
<------>.def = 480,
<------>.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);
<------>unsigned int i;
<------>u32 version;
<------>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 */
<------>ret = regmap_read(mt9v032->regmap, MT9V032_CHIP_VERSION, &version);
<------>mt9v032_power_off(mt9v032);
<------>if (ret < 0) {
<------><------>dev_err(&client->dev, "Failed reading chip version\n");
<------><------>return ret;
<------>}
<------>for (i = 0; i < ARRAY_SIZE(mt9v032_versions); ++i) {
<------><------>if (mt9v032_versions[i].version == version) {
<------><------><------>mt9v032->version = &mt9v032_versions[i];
<------><------><------>break;
<------><------>}
<------>}
<------>if (mt9v032->version == NULL) {
<------><------>dev_err(&client->dev, "Unsupported chip version 0x%04x\n",
<------><------><------>version);
<------><------>return -ENODEV;
<------>}
<------>dev_info(&client->dev, "%s detected at address 0x%02x\n",
<------><------> mt9v032->version->name, client->addr);
<------>mt9v032_configure_pixel_rate(mt9v032);
<------>return ret;
}
static int mt9v032_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
{
<------>struct mt9v032 *mt9v032 = to_mt9v032(subdev);
<------>struct v4l2_mbus_framefmt *format;
<------>struct v4l2_rect *crop;
<------>crop = v4l2_subdev_get_try_crop(subdev, fh->pad, 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(subdev, fh->pad, 0);
<------>if (mt9v032->model->color)
<------><------>format->code = MEDIA_BUS_FMT_SGRBG10_1X10;
<------>else
<------><------>format->code = MEDIA_BUS_FMT_Y10_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 const struct v4l2_subdev_core_ops mt9v032_subdev_core_ops = {
<------>.s_power = mt9v032_set_power,
};
static const struct v4l2_subdev_video_ops mt9v032_subdev_video_ops = {
<------>.s_stream = mt9v032_s_stream,
};
static const 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_selection = mt9v032_get_selection,
<------>.set_selection = mt9v032_set_selection,
};
static const 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,
};
static const struct regmap_config mt9v032_regmap_config = {
<------>.reg_bits = 8,
<------>.val_bits = 16,
<------>.max_register = 0xff,
<------>.cache_type = REGCACHE_RBTREE,
};
/* -----------------------------------------------------------------------------
* Driver initialization and probing
*/
static struct mt9v032_platform_data *
mt9v032_get_pdata(struct i2c_client *client)
{
<------>struct mt9v032_platform_data *pdata = NULL;
<------>struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
<------>struct device_node *np;
<------>struct property *prop;
<------>if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
<------><------>return client->dev.platform_data;
<------>np = of_graph_get_next_endpoint(client->dev.of_node, NULL);
<------>if (!np)
<------><------>return NULL;
<------>if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &endpoint) < 0)
<------><------>goto done;
<------>pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
<------>if (!pdata)
<------><------>goto done;
<------>prop = of_find_property(np, "link-frequencies", NULL);
<------>if (prop) {
<------><------>u64 *link_freqs;
<------><------>size_t size = prop->length / sizeof(*link_freqs);
<------><------>link_freqs = devm_kcalloc(&client->dev, size,
<------><------><------><------><------> sizeof(*link_freqs), GFP_KERNEL);
<------><------>if (!link_freqs)
<------><------><------>goto done;
<------><------>if (of_property_read_u64_array(np, "link-frequencies",
<------><------><------><------><------> link_freqs, size) < 0)
<------><------><------>goto done;
<------><------>pdata->link_freqs = link_freqs;
<------><------>pdata->link_def_freq = link_freqs[0];
<------>}
<------>pdata->clk_pol = !!(endpoint.bus.parallel.flags &
<------><------><------> V4L2_MBUS_PCLK_SAMPLE_RISING);
done:
<------>of_node_put(np);
<------>return pdata;
}
static int mt9v032_probe(struct i2c_client *client,
<------><------>const struct i2c_device_id *did)
{
<------>struct mt9v032_platform_data *pdata = mt9v032_get_pdata(client);
<------>struct mt9v032 *mt9v032;
<------>unsigned int i;
<------>int ret;
<------>mt9v032 = devm_kzalloc(&client->dev, sizeof(*mt9v032), GFP_KERNEL);
<------>if (!mt9v032)
<------><------>return -ENOMEM;
<------>mt9v032->regmap = devm_regmap_init_i2c(client, &mt9v032_regmap_config);
<------>if (IS_ERR(mt9v032->regmap))
<------><------>return PTR_ERR(mt9v032->regmap);
<------>mt9v032->clk = devm_clk_get(&client->dev, NULL);
<------>if (IS_ERR(mt9v032->clk))
<------><------>return PTR_ERR(mt9v032->clk);
<------>mt9v032->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset",
<------><------><------><------><------><------> GPIOD_OUT_HIGH);
<------>if (IS_ERR(mt9v032->reset_gpio))
<------><------>return PTR_ERR(mt9v032->reset_gpio);
<------>mt9v032->standby_gpio = devm_gpiod_get_optional(&client->dev, "standby",
<------><------><------><------><------><------><------>GPIOD_OUT_LOW);
<------>if (IS_ERR(mt9v032->standby_gpio))
<------><------>return PTR_ERR(mt9v032->standby_gpio);
<------>mutex_init(&mt9v032->power_lock);
<------>mt9v032->pdata = pdata;
<------>mt9v032->model = (const void *)did->driver_data;
<------>v4l2_ctrl_handler_init(&mt9v032->ctrls, 11 +
<------><------><------> ARRAY_SIZE(mt9v032_aegc_controls));
<------>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->model->data->min_shutter,
<------><------><------> mt9v032->model->data->max_shutter, 1,
<------><------><------> MT9V032_TOTAL_SHUTTER_WIDTH_DEF);
<------>v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
<------><------><------> V4L2_CID_HBLANK, mt9v032->model->data->min_hblank,
<------><------><------> MT9V032_HORIZONTAL_BLANKING_MAX, 1,
<------><------><------> MT9V032_HORIZONTAL_BLANKING_DEF);
<------>v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
<------><------><------> V4L2_CID_VBLANK, mt9v032->model->data->min_vblank,
<------><------><------> mt9v032->model->data->max_vblank, 1,
<------><------><------> MT9V032_VERTICAL_BLANKING_DEF);
<------>mt9v032->test_pattern = v4l2_ctrl_new_std_menu_items(&mt9v032->ctrls,
<------><------><------><------>&mt9v032_ctrl_ops, V4L2_CID_TEST_PATTERN,
<------><------><------><------>ARRAY_SIZE(mt9v032_test_pattern_menu) - 1, 0, 0,
<------><------><------><------>mt9v032_test_pattern_menu);
<------>mt9v032->test_pattern_color = v4l2_ctrl_new_custom(&mt9v032->ctrls,
<------><------><------><------> &mt9v032_test_pattern_color, NULL);
<------>v4l2_ctrl_new_custom(&mt9v032->ctrls,
<------><------><------> mt9v032->model->data->aec_max_shutter_v4l2_ctrl,
<------><------><------> NULL);
<------>for (i = 0; i < ARRAY_SIZE(mt9v032_aegc_controls); ++i)
<------><------>v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_aegc_controls[i],
<------><------><------><------> NULL);
<------>v4l2_ctrl_cluster(2, &mt9v032->test_pattern);
<------>mt9v032->pixel_rate =
<------><------>v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
<------><------><------><------> V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
<------>if (pdata && pdata->link_freqs) {
<------><------>unsigned int def = 0;
<------><------>for (i = 0; pdata->link_freqs[i]; ++i) {
<------><------><------>if (pdata->link_freqs[i] == pdata->link_def_freq)
<------><------><------><------>def = i;
<------><------>}
<------><------>mt9v032->link_freq =
<------><------><------>v4l2_ctrl_new_int_menu(&mt9v032->ctrls,
<------><------><------><------><------> &mt9v032_ctrl_ops,
<------><------><------><------><------> V4L2_CID_LINK_FREQ, i - 1, def,
<------><------><------><------><------> pdata->link_freqs);
<------><------>v4l2_ctrl_cluster(2, &mt9v032->link_freq);
<------>}
<------>mt9v032->subdev.ctrl_handler = &mt9v032->ctrls;
<------>if (mt9v032->ctrls.error) {
<------><------>dev_err(&client->dev, "control initialization error %d\n",
<------><------><------>mt9v032->ctrls.error);
<------><------>ret = mt9v032->ctrls.error;
<------><------>goto err;
<------>}
<------>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;
<------>if (mt9v032->model->color)
<------><------>mt9v032->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
<------>else
<------><------>mt9v032->format.code = MEDIA_BUS_FMT_Y10_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->hratio = 1;
<------>mt9v032->vratio = 1;
<------>mt9v032->aec_agc = MT9V032_AEC_ENABLE | MT9V032_AGC_ENABLE;
<------>mt9v032->hblank = MT9V032_HORIZONTAL_BLANKING_DEF;
<------>mt9v032->sysclk = MT9V032_SYSCLK_FREQ_DEF;
<------>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->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;
<------>mt9v032->pad.flags = MEDIA_PAD_FL_SOURCE;
<------>ret = media_entity_pads_init(&mt9v032->subdev.entity, 1, &mt9v032->pad);
<------>if (ret < 0)
<------><------>goto err;
<------>mt9v032->subdev.dev = &client->dev;
<------>ret = v4l2_async_register_subdev(&mt9v032->subdev);
<------>if (ret < 0)
<------><------>goto err;
<------>return 0;
err:
<------>media_entity_cleanup(&mt9v032->subdev.entity);
<------>v4l2_ctrl_handler_free(&mt9v032->ctrls);
<------>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_async_unregister_subdev(subdev);
<------>v4l2_ctrl_handler_free(&mt9v032->ctrls);
<------>media_entity_cleanup(&subdev->entity);
<------>return 0;
}
static const struct mt9v032_model_data mt9v032_model_data[] = {
<------>{
<------><------>/* MT9V022, MT9V032 revisions 1/2/3 */
<------><------>.min_row_time = 660,
<------><------>.min_hblank = MT9V032_HORIZONTAL_BLANKING_MIN,
<------><------>.min_vblank = MT9V032_VERTICAL_BLANKING_MIN,
<------><------>.max_vblank = MT9V032_VERTICAL_BLANKING_MAX,
<------><------>.min_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MIN,
<------><------>.max_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MAX,
<------><------>.pclk_reg = MT9V032_PIXEL_CLOCK,
<------><------>.aec_max_shutter_reg = MT9V032_AEC_MAX_SHUTTER_WIDTH,
<------><------>.aec_max_shutter_v4l2_ctrl = &mt9v032_aec_max_shutter_width,
<------>}, {
<------><------>/* MT9V024, MT9V034 */
<------><------>.min_row_time = 690,
<------><------>.min_hblank = MT9V034_HORIZONTAL_BLANKING_MIN,
<------><------>.min_vblank = MT9V034_VERTICAL_BLANKING_MIN,
<------><------>.max_vblank = MT9V034_VERTICAL_BLANKING_MAX,
<------><------>.min_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MIN,
<------><------>.max_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MAX,
<------><------>.pclk_reg = MT9V034_PIXEL_CLOCK,
<------><------>.aec_max_shutter_reg = MT9V034_AEC_MAX_SHUTTER_WIDTH,
<------><------>.aec_max_shutter_v4l2_ctrl = &mt9v034_aec_max_shutter_width,
<------>},
};
static const struct mt9v032_model_info mt9v032_models[] = {
<------>[MT9V032_MODEL_V022_COLOR] = {
<------><------>.data = &mt9v032_model_data[0],
<------><------>.color = true,
<------>},
<------>[MT9V032_MODEL_V022_MONO] = {
<------><------>.data = &mt9v032_model_data[0],
<------><------>.color = false,
<------>},
<------>[MT9V032_MODEL_V024_COLOR] = {
<------><------>.data = &mt9v032_model_data[1],
<------><------>.color = true,
<------>},
<------>[MT9V032_MODEL_V024_MONO] = {
<------><------>.data = &mt9v032_model_data[1],
<------><------>.color = false,
<------>},
<------>[MT9V032_MODEL_V032_COLOR] = {
<------><------>.data = &mt9v032_model_data[0],
<------><------>.color = true,
<------>},
<------>[MT9V032_MODEL_V032_MONO] = {
<------><------>.data = &mt9v032_model_data[0],
<------><------>.color = false,
<------>},
<------>[MT9V032_MODEL_V034_COLOR] = {
<------><------>.data = &mt9v032_model_data[1],
<------><------>.color = true,
<------>},
<------>[MT9V032_MODEL_V034_MONO] = {
<------><------>.data = &mt9v032_model_data[1],
<------><------>.color = false,
<------>},
};
static const struct i2c_device_id mt9v032_id[] = {
<------>{ "mt9v022", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V022_COLOR] },
<------>{ "mt9v022m", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V022_MONO] },
<------>{ "mt9v024", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V024_COLOR] },
<------>{ "mt9v024m", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V024_MONO] },
<------>{ "mt9v032", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V032_COLOR] },
<------>{ "mt9v032m", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V032_MONO] },
<------>{ "mt9v034", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V034_COLOR] },
<------>{ "mt9v034m", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V034_MONO] },
<------>{ }
};
MODULE_DEVICE_TABLE(i2c, mt9v032_id);
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id mt9v032_of_match[] = {
<------>{ .compatible = "aptina,mt9v022" },
<------>{ .compatible = "aptina,mt9v022m" },
<------>{ .compatible = "aptina,mt9v024" },
<------>{ .compatible = "aptina,mt9v024m" },
<------>{ .compatible = "aptina,mt9v032" },
<------>{ .compatible = "aptina,mt9v032m" },
<------>{ .compatible = "aptina,mt9v034" },
<------>{ .compatible = "aptina,mt9v034m" },
<------>{ /* Sentinel */ }
};
MODULE_DEVICE_TABLE(of, mt9v032_of_match);
#endif
static struct i2c_driver mt9v032_driver = {
<------>.driver = {
<------><------>.name = "mt9v032",
<------><------>.of_match_table = of_match_ptr(mt9v032_of_match),
<------>},
<------>.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");