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media: i2c: add imx327

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Change-Id: Idffad2860d824ba445d4fecd08b7f000d77bf980
Signed-off-by: Cai YiWei <cyw@rock-chips.com>
This commit is contained in:
Cai YiWei
2019-02-15 10:46:26 +08:00
parent 555ccf739b
commit 931422cb12
3 changed files with 991 additions and 0 deletions
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8
drivers/media/i2c/Kconfig
View File

@@ -509,6 +509,14 @@ config VIDEO_IMX323
help
This driver supports IMX323 cameras from Sony
config VIDEO_IMX327
tristate "Sony imx327 sensor support"
depends on VIDEO_V4L2 && I2C
depends on MEDIA_CAMERA_SUPPORT
select V4L2_FWNODE
help
This driver supports IMX327 cameras from Sony
config VIDEO_VIRT_CAMERA
tristate "Rockchip virtual sensor support"
depends on VIDEO_V4L2 && I2C

1
drivers/media/i2c/Makefile
View File

@@ -94,6 +94,7 @@ obj-$(CONFIG_VIDEO_TC35874X) += tc35874x.o
obj-$(CONFIG_VIDEO_OV5647) += ov5647.o
obj-$(CONFIG_VIDEO_IMX219) += imx219.o
obj-$(CONFIG_VIDEO_IMX323) += imx323.o
obj-$(CONFIG_VIDEO_IMX327) += imx327.o
obj-$(CONFIG_VIDEO_GC2155) += gc2155.o
obj-$(CONFIG_VIDEO_GC0312) += gc0312.o
obj-$(CONFIG_VIDEO_GC2145) += gc2145.o

982
drivers/media/i2c/imx327.c Normal file
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@@ -0,0 +1,982 @@
// SPDX-License-Identifier: GPL-2.0
/*
* imx327 driver
*
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define IMX327_DATA_FORMAT MEDIA_BUS_FMT_SRGGB12_1X12
#define IMX327_LINK_FREQ 222750000
#define IMX327_LANES 2
#define IMX327_BITS_PER_SAMPLE 12
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
#define IMX327_PIXEL_RATE \
(IMX327_LINK_FREQ * 2 * IMX327_LANES / IMX327_BITS_PER_SAMPLE)
#define IMX327_XVCLK_FREQ 37125000
#define CHIP_ID 0xa0
#define IMX327_REG_CHIP_ID 0x3008
#define IMX327_REG_CTRL_MODE 0x3000
#define IMX327_MODE_SW_STANDBY 0x1
#define IMX327_MODE_STREAMING 0x0
#define IMX327_REG_EXPOSURE_H 0x3022
#define IMX327_REG_EXPOSURE_M 0x3021
#define IMX327_REG_EXPOSURE_L 0x3020
#define IMX327_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 16) & 0x03)
#define IMX327_FETCH_MID_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF)
#define IMX327_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF)
#define IMX327_EXPOSURE_MIN 4
#define IMX327_EXPOSURE_STEP 1
#define IMX327_VTS_MAX 0x7fff
#define IMX327_REG_GAIN 0x3014
#define IMX327_GAIN_MIN 0x00
#define IMX327_GAIN_MAX 0xee
#define IMX327_GAIN_STEP 1
#define IMX327_GAIN_DEFAULT 0x00
#define IMX327_REG_TEST_PATTERN 0x5e00
#define IMX327_TEST_PATTERN_ENABLE 0x80
#define IMX327_TEST_PATTERN_DISABLE 0x0
#define IMX327_REG_VTS_H 0x301a
#define IMX327_REG_VTS_M 0x3019
#define IMX327_REG_VTS_L 0x3018
#define IMX327_FETCH_HIGH_BYTE_VTS(VAL) (((VAL) >> 16) & 0x03)
#define IMX327_FETCH_MID_BYTE_VTS(VAL) (((VAL) >> 8) & 0xFF)
#define IMX327_FETCH_LOW_BYTE_VTS(VAL) ((VAL) & 0xFF)
#define REG_NULL 0xFFFF
#define IMX327_REG_VALUE_08BIT 1
#define IMX327_REG_VALUE_16BIT 2
#define IMX327_REG_VALUE_24BIT 3
static const char * const imx327_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
#define IMX327_NUM_SUPPLIES ARRAY_SIZE(imx327_supply_names)
struct regval {
u16 addr;
u8 val;
};
struct imx327_mode {
u32 width;
u32 height;
u32 max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
const struct regval *reg_list;
};
struct imx327 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[IMX327_NUM_SUPPLIES];
struct v4l2_subdev subdev;
struct media_pad pad;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *exposure;
struct v4l2_ctrl *anal_gain;
struct v4l2_ctrl *digi_gain;
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *vblank;
struct v4l2_ctrl *test_pattern;
struct mutex mutex;
bool streaming;
const struct imx327_mode *cur_mode;
};
#define to_imx327(sd) container_of(sd, struct imx327, subdev)
/*
* Xclk 37.125Mhz
*/
static const struct regval imx327_global_regs[] = {
{0x3003, 0x01},
{REG_NULL, 0x00},
};
/*
* Xclk 37.125Mhz
* max_framerate 30fps
* mipi_datarate per lane 445Mbps
*/
static const struct regval imx327_1920x1080_regs[] = {
{0x3000, 0x01},
{0x3001, 0x00},
{0x3002, 0x00},
{0x3005, 0x01},
{0x3007, 0x00},
{0x3009, 0x02},
{0x300a, 0xf0},
{0x300b, 0x00},
{0x3011, 0x0a},
{0x3012, 0x64},
{0x3014, 0x00},
{0x3018, 0x65},/* vMAX L */
{0x3019, 0x04},/* VMAX M */
{0x301a, 0x00},/* VMAX H */
{0x301c, 0x30},/* HMAX L */
{0x301d, 0x11},/* HMAX H */
{0x3020, 0xfe},
{0x3021, 0x03},
{0x3022, 0x00},
{0x3046, 0x01},
{0x3048, 0x00},
{0x3049, 0x08},
{0x304b, 0x0a},
{0x305c, 0x18},
{0x305d, 0x03},
{0x305e, 0x20},
{0x305f, 0x01},
{0x309e, 0x4a},
{0x309f, 0x4a},
{0x30d2, 0x19},
{0x30d7, 0x03},
{0x3128, 0x04},
{0x3129, 0x00},
{0x313b, 0x41},
{0x315e, 0x1a},
{0x3164, 0x1a},
{0x317c, 0x00},
{0x31ec, 0x0e},
{0x3405, 0x10},
{0x3407, 0x01},
{0x3414, 0x0a},
{0x3418, 0x38},
{0x3419, 0x04},
{0x3441, 0x0c},
{0x3442, 0x0c},
{0x3443, 0x01},
{0x3444, 0x20},
{0x3445, 0x25},
{0x3446, 0x57},
{0x3447, 0x00},
{0x3448, 0x55},
{0x3449, 0x00},
{0x344a, 0x1f},
{0x344b, 0x00},
{0x344c, 0x1f},
{0x344d, 0x00},
{0x344e, 0x1f},
{0x344f, 0x00},
{0x3450, 0x77},
{0x3451, 0x00},
{0x3452, 0x1f},
{0x3453, 0x00},
{0x3454, 0x17},
{0x3455, 0x00},
{0x3472, 0x80},
{0x3473, 0x07},
{0x3480, 0x49},
{REG_NULL, 0x00},
};
static const struct imx327_mode supported_modes[] = {
{
.width = 1920,
.height = 1080,
.max_fps = 30,
.exp_def = 0x0300,
.hts_def = 0x1130,
.vts_def = 0x0465,
.reg_list = imx327_1920x1080_regs,
},
};
static const s64 link_freq_menu_items[] = {
IMX327_LINK_FREQ
};
static const char * const imx327_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
"Vertical Color Bar Type 2",
"Vertical Color Bar Type 3",
"Vertical Color Bar Type 4"
};
/* Write registers up to 4 at a time */
static int imx327_write_reg(struct i2c_client *client, u16 reg,
int len, u32 val)
{
u32 buf_i, val_i;
u8 buf[6];
u8 *val_p;
__be32 val_be;
if (len > 4)
return -EINVAL;
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
val_be = cpu_to_be32(val);
val_p = (u8 *)&val_be;
buf_i = 2;
val_i = 4 - len;
while (val_i < 4)
buf[buf_i++] = val_p[val_i++];
if (i2c_master_send(client, buf, len + 2) != len + 2)
return -EIO;
return 0;
}
static int imx327_write_array(struct i2c_client *client,
const struct regval *regs)
{
u32 i;
int ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
ret = imx327_write_reg(client, regs[i].addr,
IMX327_REG_VALUE_08BIT,
regs[i].val);
return ret;
}
/* Read registers up to 4 at a time */
static int imx327_read_reg(struct i2c_client *client, u16 reg, unsigned int len,
u32 *val)
{
struct i2c_msg msgs[2];
u8 *data_be_p;
__be32 data_be = 0;
__be16 reg_addr_be = cpu_to_be16(reg);
int ret;
if (len > 4 || !len)
return -EINVAL;
data_be_p = (u8 *)&data_be;
/* Write register address */
msgs[0].addr = client->addr;
msgs[0].flags = 0;
msgs[0].len = 2;
msgs[0].buf = (u8 *)&reg_addr_be;
/* Read data from register */
msgs[1].addr = client->addr;
msgs[1].flags = I2C_M_RD;
msgs[1].len = len;
msgs[1].buf = &data_be_p[4 - len];
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs))
return -EIO;
*val = be32_to_cpu(data_be);
return 0;
}
static int imx327_get_reso_dist(const struct imx327_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct imx327_mode *
imx327_find_best_fit(struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt = &fmt->format;
int dist;
int cur_best_fit = 0;
int cur_best_fit_dist = -1;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = imx327_get_reso_dist(&supported_modes[i], framefmt);
if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &supported_modes[cur_best_fit];
}
static int imx327_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx327 *imx327 = to_imx327(sd);
const struct imx327_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&imx327->mutex);
mode = imx327_find_best_fit(fmt);
fmt->format.code = IMX327_DATA_FORMAT;
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.field = V4L2_FIELD_NONE;
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
#else
mutex_unlock(&imx327->mutex);
return -ENOTTY;
#endif
} else {
imx327->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(imx327->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(imx327->vblank, vblank_def,
IMX327_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&imx327->mutex);
return 0;
}
static int imx327_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx327 *imx327 = to_imx327(sd);
const struct imx327_mode *mode = imx327->cur_mode;
mutex_lock(&imx327->mutex);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
#else
mutex_unlock(&imx327->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = IMX327_DATA_FORMAT;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&imx327->mutex);
return 0;
}
static int imx327_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index != 0)
return -EINVAL;
code->code = IMX327_DATA_FORMAT;
return 0;
}
static int imx327_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != IMX327_DATA_FORMAT)
return -EINVAL;
fse->min_width = supported_modes[fse->index].width;
fse->max_width = supported_modes[fse->index].width;
fse->max_height = supported_modes[fse->index].height;
fse->min_height = supported_modes[fse->index].height;
return 0;
}
static int imx327_enable_test_pattern(struct imx327 *imx327, u32 pattern)
{
u32 val;
if (pattern)
val = (pattern - 1) | IMX327_TEST_PATTERN_ENABLE;
else
val = IMX327_TEST_PATTERN_DISABLE;
return imx327_write_reg(imx327->client,
IMX327_REG_TEST_PATTERN,
IMX327_REG_VALUE_08BIT,
val);
}
static int imx327_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct imx327 *imx327 = to_imx327(sd);
const struct imx327_mode *mode = imx327->cur_mode;
mutex_lock(&imx327->mutex);
fi->interval.numerator = 10000;
fi->interval.denominator = mode->max_fps * 10000;
mutex_unlock(&imx327->mutex);
return 0;
}
static int __imx327_start_stream(struct imx327 *imx327)
{
int ret;
ret = imx327_write_array(imx327->client, imx327_global_regs);
if (ret)
return ret;
ret = imx327_write_array(imx327->client, imx327->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
mutex_unlock(&imx327->mutex);
ret = v4l2_ctrl_handler_setup(&imx327->ctrl_handler);
mutex_lock(&imx327->mutex);
if (ret)
return ret;
return imx327_write_reg(imx327->client, IMX327_REG_CTRL_MODE,
IMX327_REG_VALUE_08BIT, 0);
}
static int __imx327_stop_stream(struct imx327 *imx327)
{
return imx327_write_reg(imx327->client, IMX327_REG_CTRL_MODE,
IMX327_REG_VALUE_08BIT, 1);
}
static int imx327_s_stream(struct v4l2_subdev *sd, int on)
{
struct imx327 *imx327 = to_imx327(sd);
struct i2c_client *client = imx327->client;
int ret = 0;
mutex_lock(&imx327->mutex);
on = !!on;
if (on == imx327->streaming)
goto unlock_and_return;
if (on) {
ret = pm_runtime_get_sync(&client->dev);
if (ret < 0) {
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
ret = __imx327_start_stream(imx327);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__imx327_stop_stream(imx327);
pm_runtime_put(&client->dev);
}
imx327->streaming = on;
unlock_and_return:
mutex_unlock(&imx327->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 imx327_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, IMX327_XVCLK_FREQ / 1000 / 1000);
}
static int __imx327_power_on(struct imx327 *imx327)
{
int ret;
u32 delay_us;
struct device *dev = &imx327->client->dev;
ret = clk_set_rate(imx327->xvclk, IMX327_XVCLK_FREQ);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
return ret;
}
if (clk_get_rate(imx327->xvclk) != IMX327_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 37.125MHz\n");
ret = clk_prepare_enable(imx327->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(imx327->reset_gpio))
gpiod_set_value_cansleep(imx327->reset_gpio, 0);
ret = regulator_bulk_enable(IMX327_NUM_SUPPLIES, imx327->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(imx327->reset_gpio))
gpiod_set_value_cansleep(imx327->reset_gpio, 1);
usleep_range(500, 1000);
if (!IS_ERR(imx327->pwdn_gpio))
gpiod_set_value_cansleep(imx327->pwdn_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = imx327_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(imx327->xvclk);
return ret;
}
static void __imx327_power_off(struct imx327 *imx327)
{
if (!IS_ERR(imx327->pwdn_gpio))
gpiod_set_value_cansleep(imx327->pwdn_gpio, 0);
clk_disable_unprepare(imx327->xvclk);
if (!IS_ERR(imx327->reset_gpio))
gpiod_set_value_cansleep(imx327->reset_gpio, 0);
regulator_bulk_disable(IMX327_NUM_SUPPLIES, imx327->supplies);
}
static int imx327_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx327 *imx327 = to_imx327(sd);
return __imx327_power_on(imx327);
}
static int imx327_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx327 *imx327 = to_imx327(sd);
__imx327_power_off(imx327);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int imx327_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx327 *imx327 = to_imx327(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct imx327_mode *def_mode = &supported_modes[0];
mutex_lock(&imx327->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = IMX327_DATA_FORMAT;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&imx327->mutex);
/* No crop or compose */
return 0;
}
#endif
static const struct dev_pm_ops imx327_pm_ops = {
SET_RUNTIME_PM_OPS(imx327_runtime_suspend,
imx327_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops imx327_internal_ops = {
.open = imx327_open,
};
#endif
static const struct v4l2_subdev_video_ops imx327_video_ops = {
.s_stream = imx327_s_stream,
.g_frame_interval = imx327_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops imx327_pad_ops = {
.enum_mbus_code = imx327_enum_mbus_code,
.enum_frame_size = imx327_enum_frame_sizes,
.get_fmt = imx327_get_fmt,
.set_fmt = imx327_set_fmt,
};
static const struct v4l2_subdev_ops imx327_subdev_ops = {
.video = &imx327_video_ops,
.pad = &imx327_pad_ops,
};
static int imx327_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx327 *imx327 = container_of(ctrl->handler,
struct imx327, ctrl_handler);
struct i2c_client *client = imx327->client;
s64 max;
int ret = 0;
/* Propagate change of current control to all related controls */
switch (ctrl->id) {
case V4L2_CID_VBLANK:
/* Update max exposure while meeting expected vblanking */
max = imx327->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(imx327->exposure,
imx327->exposure->minimum, max,
imx327->exposure->step,
imx327->exposure->default_value);
break;
}
if (pm_runtime_get(&client->dev) <= 0)
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
/* 4 least significant bits of expsoure are fractional part */
ret = imx327_write_reg(imx327->client,
IMX327_REG_EXPOSURE_H,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_HIGH_BYTE_EXP(ctrl->val));
ret |= imx327_write_reg(imx327->client,
IMX327_REG_EXPOSURE_M,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_MID_BYTE_EXP(ctrl->val));
ret |= imx327_write_reg(imx327->client,
IMX327_REG_EXPOSURE_L,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_LOW_BYTE_EXP(ctrl->val));
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = imx327_write_reg(imx327->client,
IMX327_REG_GAIN,
IMX327_REG_VALUE_08BIT,
ctrl->val);
break;
case V4L2_CID_VBLANK:
ret = imx327_write_reg(imx327->client,
IMX327_REG_VTS_H,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_HIGH_BYTE_VTS(ctrl->val + imx327->cur_mode->height));
ret |= imx327_write_reg(imx327->client,
IMX327_REG_VTS_M,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_MID_BYTE_VTS(ctrl->val + imx327->cur_mode->height));
ret |= imx327_write_reg(imx327->client,
IMX327_REG_VTS_L,
IMX327_REG_VALUE_08BIT,
IMX327_FETCH_LOW_BYTE_VTS(ctrl->val + imx327->cur_mode->height));
break;
case V4L2_CID_TEST_PATTERN:
ret = imx327_enable_test_pattern(imx327, ctrl->val);
break;
default:
dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
__func__, ctrl->id, ctrl->val);
break;
}
pm_runtime_put(&client->dev);
return ret;
}
static const struct v4l2_ctrl_ops imx327_ctrl_ops = {
.s_ctrl = imx327_set_ctrl,
};
static int imx327_initialize_controls(struct imx327 *imx327)
{
const struct imx327_mode *mode;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl *ctrl;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &imx327->ctrl_handler;
mode = imx327->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 8);
if (ret)
return ret;
handler->lock = &imx327->mutex;
ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
0, 0, link_freq_menu_items);
if (ctrl)
ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, IMX327_PIXEL_RATE, 1, IMX327_PIXEL_RATE);
h_blank = mode->hts_def - mode->width;
imx327->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (imx327->hblank)
imx327->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
imx327->vblank = v4l2_ctrl_new_std(handler, &imx327_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
IMX327_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 4;
imx327->exposure = v4l2_ctrl_new_std(handler, &imx327_ctrl_ops,
V4L2_CID_EXPOSURE, IMX327_EXPOSURE_MIN,
exposure_max, IMX327_EXPOSURE_STEP,
mode->exp_def);
imx327->anal_gain = v4l2_ctrl_new_std(handler, &imx327_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, IMX327_GAIN_MIN,
IMX327_GAIN_MAX, IMX327_GAIN_STEP,
IMX327_GAIN_DEFAULT);
imx327->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&imx327_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx327_test_pattern_menu) - 1,
0, 0, imx327_test_pattern_menu);
if (handler->error) {
ret = handler->error;
dev_err(&imx327->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
imx327->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int imx327_check_sensor_id(struct imx327 *imx327,
struct i2c_client *client)
{
struct device *dev = &imx327->client->dev;
u32 id = 0;
int ret;
ret = imx327_read_reg(client, IMX327_REG_CHIP_ID,
IMX327_REG_VALUE_08BIT, &id);
if (id != CHIP_ID) {
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
return ret;
}
dev_info(dev, "Detected imx327 id:%06x\n", CHIP_ID);
return 0;
}
static int imx327_configure_regulators(struct imx327 *imx327)
{
unsigned int i;
for (i = 0; i < IMX327_NUM_SUPPLIES; i++)
imx327->supplies[i].supply = imx327_supply_names[i];
return devm_regulator_bulk_get(&imx327->client->dev,
IMX327_NUM_SUPPLIES,
imx327->supplies);
}
static int imx327_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct imx327 *imx327;
struct v4l2_subdev *sd;
int ret;
imx327 = devm_kzalloc(dev, sizeof(*imx327), GFP_KERNEL);
if (!imx327)
return -ENOMEM;
imx327->client = client;
imx327->cur_mode = &supported_modes[0];
imx327->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(imx327->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
imx327->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(imx327->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
imx327->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(imx327->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ret = imx327_configure_regulators(imx327);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&imx327->mutex);
sd = &imx327->subdev;
v4l2_i2c_subdev_init(sd, client, &imx327_subdev_ops);
ret = imx327_initialize_controls(imx327);
if (ret)
goto err_destroy_mutex;
ret = __imx327_power_on(imx327);
if (ret)
goto err_free_handler;
ret = imx327_check_sensor_id(imx327, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &imx327_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
imx327->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
ret = media_entity_init(&sd->entity, 1, &imx327->pad, 0);
if (ret < 0)
goto err_power_off;
#endif
ret = v4l2_async_register_subdev(sd);
if (ret) {
dev_err(dev, "v4l2 async register subdev failed\n");
goto err_clean_entity;
}
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_idle(dev);
return 0;
err_clean_entity:
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
err_power_off:
__imx327_power_off(imx327);
err_free_handler:
v4l2_ctrl_handler_free(&imx327->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&imx327->mutex);
return ret;
}
static int imx327_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx327 *imx327 = to_imx327(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&imx327->ctrl_handler);
mutex_destroy(&imx327->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__imx327_power_off(imx327);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id imx327_of_match[] = {
{ .compatible = "sony,imx327" },
{},
};
MODULE_DEVICE_TABLE(of, imx327_of_match);
#endif
static const struct i2c_device_id imx327_match_id[] = {
{ "sony,imx327", 0 },
{ },
};
static struct i2c_driver imx327_i2c_driver = {
.driver = {
.name = "imx327",
.pm = &imx327_pm_ops,
.of_match_table = of_match_ptr(imx327_of_match),
},
.probe = &imx327_probe,
.remove = &imx327_remove,
.id_table = imx327_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&imx327_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&imx327_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("Sony imx327 sensor driver");
MODULE_LICENSE("GPL v2");