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CoolPi-Armbian-Rockchip-RK3.../drivers/media/i2c/imx323.c

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// SPDX-License-Identifier: GPL-2.0
/*
* imx323 driver
*
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X01 add poweron function.
* V0.0X01.0X02 add enum_frame_interval function.
* V0.0X01.0X03 add quick stream on/off
*/
#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/slab.h>
#include <linux/sysfs.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x03)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
/* 74.25Mhz */
#define IMX323_PIXEL_RATE (74250 * 1000)
#define IMX323_XVCLK_FREQ 37125000
#define CHIP_ID 0xa
#define IMX323_REG_CHIP_ID 0x0112
#define IMX323_REG_CTRL_MODE 0x0100
#define IMX323_MODE_SW_STANDBY 0x0
#define IMX323_MODE_STREAMING BIT(0)
#define IMX323_REG_EXPOSURE 0x0202
#define IMX323_EXPOSURE_MIN 0
#define IMX323_EXPOSURE_STEP 1
#define IMX323_VTS_MAX 0x465
#define IMX323_REG_ANALOG_GAIN 0x301e
#define ANALOG_GAIN_MIN 0x0
#define ANALOG_GAIN_MAX 0x78
#define ANALOG_GAIN_STEP 1
#define ANALOG_GAIN_DEFAULT 0x10
#define IMX323_REG_VTS 0x0340
#define IMX323_REG_ORIENTATION 0x0101
#define IMX323_ORIENTATION_H 0x1
#define IMX323_ORIENTATION_V 0x2
#define REG_NULL 0xFFFF
#define IMX323_REG_VALUE_08BIT 1
#define IMX323_REG_VALUE_16BIT 2
#define IMX323_REG_VALUE_24BIT 3
/* h_offs 35 v_offs 14 */
#define PIX_FORMAT MEDIA_BUS_FMT_SBGGR10_1X10
#define IMX323_NAME "imx323"
struct cam_regulator {
char name[32];
int val;
};
static const struct cam_regulator imx323_regulator[] = {
{"avdd", 2800000}, /* Analog power */
{"dovdd", 1800000}, /* Digital I/O power */
{"dvdd", 1200000}, /* Digital core power */
};
#define IMX323_NUM_SUPPLIES ARRAY_SIZE(imx323_regulator)
struct regval {
u16 addr;
u8 val;
};
struct imx323_mode {
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
const struct regval *reg_list;
};
struct imx323 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[IMX323_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;
bool power_on;
const struct imx323_mode *cur_mode;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
#define to_imx323(sd) container_of(sd, struct imx323, subdev)
/*
* Xclk 37.125Mhz
* Pclk 74.25Mhz
* linelength 2200(0x44c * 2)
* framelength 1125(0x465)
* grabwindow_width 1920
* grabwindow_height 1080
* max_framerate 30fps
* dvp bt656 10bit
*/
static const struct regval imx323_regs[] = {
{0x0100, 0x00},
{0x0009, 0x3f},
{0x0340, 0x04},
{0x0341, 0x65},
{0x0342, 0x04},
{0x0343, 0x4c},
{0x3000, 0x31},
{0x3002, 0x0f},
{0x3011, 0x00},
{0x3013, 0x40},
{0x3016, 0x3c},
{0x301a, 0x51},
{0x301f, 0x73},
{0x3021, 0x80},
{0x3022, 0x40},
{0x3027, 0x20},
{0x302c, 0x00},
{0x302d, 0x48}, /* low 10bit */
{0x304f, 0x47},
{0x3054, 0x10},
{0x307a, 0x40},
{0x307b, 0x02},
{0x3117, 0x0d},
{REG_NULL, 0x00},
};
static const struct imx323_mode supported_modes[] = {
{
.width = 2200,
.height = 1125,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0100,
.hts_def = 0x044c * 2,
.vts_def = 0x0465,
.reg_list = imx323_regs,
}
};
static const char * const imx323_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 imx323_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 imx323_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 = imx323_write_reg(client, regs[i].addr,
IMX323_REG_VALUE_08BIT, regs[i].val);
return ret;
}
/* Read registers up to 4 at a time */
static int imx323_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 imx323_get_reso_dist(const struct imx323_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct imx323_mode *
imx323_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;
u32 i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = imx323_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 imx323_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct imx323 *imx323 = to_imx323(sd);
const struct imx323_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&imx323->mutex);
mode = imx323_find_best_fit(fmt);
fmt->format.code = PIX_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, sd_state, fmt->pad) = fmt->format;
#else
mutex_unlock(&imx323->mutex);
return -ENOTTY;
#endif
} else {
imx323->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(imx323->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(imx323->vblank, vblank_def,
IMX323_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&imx323->mutex);
return 0;
}
static int imx323_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct imx323 *imx323 = to_imx323(sd);
const struct imx323_mode *mode = imx323->cur_mode;
mutex_lock(&imx323->mutex);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
fmt->format = *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
#else
mutex_unlock(&imx323->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = PIX_FORMAT;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&imx323->mutex);
return 0;
}
static int imx323_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index != 0)
return -EINVAL;
code->code = PIX_FORMAT;
return 0;
}
static int imx323_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != PIX_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 imx323_enable_test_pattern(struct imx323 *imx323, u32 pattern)
{
return 0;
}
static void imx323_get_module_inf(struct imx323 *imx323,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, IMX323_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, imx323->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, imx323->len_name, sizeof(inf->base.lens));
}
static long imx323_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct imx323 *imx323 = to_imx323(sd);
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
imx323_get_module_inf(imx323, (struct rkmodule_inf *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
imx323_write_reg(imx323->client, IMX323_REG_CTRL_MODE,
IMX323_REG_VALUE_08BIT, IMX323_MODE_STREAMING);
else
imx323_write_reg(imx323->client, IMX323_REG_CTRL_MODE,
IMX323_REG_VALUE_08BIT, IMX323_MODE_SW_STANDBY);
break;
case RKMODULE_GET_BT656_INTF_TYPE:
*(__u32 *)arg = BT656_SONY_RAW;
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long imx323_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
struct rkmodule_awb_cfg *cfg;
__u32 intf;
long ret;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = imx323_ioctl(sd, cmd, inf);
if (!ret)
ret = copy_to_user(up, inf, sizeof(*inf));
kfree(inf);
break;
case RKMODULE_AWB_CFG:
cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
if (!cfg) {
ret = -ENOMEM;
return ret;
}
ret = copy_from_user(cfg, up, sizeof(*cfg));
if (!ret)
ret = imx323_ioctl(sd, cmd, cfg);
kfree(cfg);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = imx323_ioctl(sd, cmd, &stream);
break;
case RKMODULE_GET_BT656_INTF_TYPE:
intf = BT656_SONY_RAW;
ret = copy_to_user(up, &intf, sizeof(intf));
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __imx323_start_stream(struct imx323 *imx323)
{
int ret;
ret = imx323_write_array(imx323->client, imx323->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
mutex_unlock(&imx323->mutex);
ret = v4l2_ctrl_handler_setup(&imx323->ctrl_handler);
mutex_lock(&imx323->mutex);
if (ret)
return ret;
return imx323_write_reg(imx323->client, IMX323_REG_CTRL_MODE,
IMX323_REG_VALUE_08BIT, IMX323_MODE_STREAMING);
}
static int __imx323_stop_stream(struct imx323 *imx323)
{
return imx323_write_reg(imx323->client, IMX323_REG_CTRL_MODE,
IMX323_REG_VALUE_08BIT, IMX323_MODE_SW_STANDBY);
}
static int imx323_s_stream(struct v4l2_subdev *sd, int on)
{
struct imx323 *imx323 = to_imx323(sd);
struct i2c_client *client = imx323->client;
int ret = 0;
mutex_lock(&imx323->mutex);
on = !!on;
if (on == imx323->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 = __imx323_start_stream(imx323);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__imx323_stop_stream(imx323);
pm_runtime_put(&client->dev);
}
imx323->streaming = on;
unlock_and_return:
mutex_unlock(&imx323->mutex);
return ret;
}
static int imx323_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct imx323 *imx323 = to_imx323(sd);
const struct imx323_mode *mode = imx323->cur_mode;
fi->interval = mode->max_fps;
return 0;
}
static int imx323_s_power(struct v4l2_subdev *sd, int on)
{
struct imx323 *imx323 = to_imx323(sd);
struct i2c_client *client = imx323->client;
int ret = 0;
mutex_lock(&imx323->mutex);
/* If the power state is not modified - no work to do. */
if (imx323->power_on == !!on)
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;
}
imx323->power_on = true;
} else {
pm_runtime_put(&client->dev);
imx323->power_on = false;
}
unlock_and_return:
mutex_unlock(&imx323->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 imx323_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, IMX323_XVCLK_FREQ / 1000 / 1000);
}
static int __imx323_power_on(struct imx323 *imx323)
{
int ret;
u32 i, delay_us;
struct device *dev = &imx323->client->dev;
ret = clk_set_rate(imx323->xvclk, IMX323_XVCLK_FREQ);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (%d)\n",
IMX323_XVCLK_FREQ);
return ret;
}
if (clk_get_rate(imx323->xvclk) != IMX323_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on %d\n",
IMX323_XVCLK_FREQ);
ret = clk_prepare_enable(imx323->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(imx323->reset_gpio))
gpiod_set_value_cansleep(imx323->reset_gpio, 0);
for (i = 0; i < IMX323_NUM_SUPPLIES; i++)
regulator_set_voltage(imx323->supplies[i].consumer,
imx323_regulator[i].val,
imx323_regulator[i].val);
ret = regulator_bulk_enable(IMX323_NUM_SUPPLIES, imx323->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(imx323->reset_gpio))
gpiod_set_value_cansleep(imx323->reset_gpio, 1);
if (!IS_ERR(imx323->pwdn_gpio))
gpiod_set_value_cansleep(imx323->pwdn_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = imx323_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(imx323->xvclk);
return ret;
}
static void __imx323_power_off(struct imx323 *imx323)
{
if (!IS_ERR(imx323->pwdn_gpio))
gpiod_set_value_cansleep(imx323->pwdn_gpio, 0);
clk_disable_unprepare(imx323->xvclk);
if (!IS_ERR(imx323->reset_gpio))
gpiod_set_value_cansleep(imx323->reset_gpio, 0);
regulator_bulk_disable(IMX323_NUM_SUPPLIES, imx323->supplies);
}
static int imx323_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx323 *imx323 = to_imx323(sd);
return __imx323_power_on(imx323);
}
static int imx323_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx323 *imx323 = to_imx323(sd);
__imx323_power_off(imx323);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int imx323_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx323 *imx323 = to_imx323(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->state, 0);
const struct imx323_mode *def_mode = &supported_modes[0];
mutex_lock(&imx323->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = PIX_FORMAT;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&imx323->mutex);
/* No crop or compose */
return 0;
}
#endif
static int imx323_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
struct v4l2_mbus_config *config)
{
config->type = V4L2_MBUS_BT656;
config->bus.parallel.flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH |
V4L2_MBUS_VSYNC_ACTIVE_HIGH |
V4L2_MBUS_PCLK_SAMPLE_FALLING;
return 0;
}
static int imx323_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval_enum *fie)
{
if (fie->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
fie->code = PIX_FORMAT;
fie->width = supported_modes[fie->index].width;
fie->height = supported_modes[fie->index].height;
fie->interval = supported_modes[fie->index].max_fps;
return 0;
}
static const struct dev_pm_ops imx323_pm_ops = {
SET_RUNTIME_PM_OPS(imx323_runtime_suspend,
imx323_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops imx323_internal_ops = {
.open = imx323_open,
};
#endif
static const struct v4l2_subdev_core_ops imx323_core_ops = {
.s_power = imx323_s_power,
.ioctl = imx323_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = imx323_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops imx323_video_ops = {
.s_stream = imx323_s_stream,
.g_frame_interval = imx323_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops imx323_pad_ops = {
.enum_mbus_code = imx323_enum_mbus_code,
.enum_frame_size = imx323_enum_frame_sizes,
.enum_frame_interval = imx323_enum_frame_interval,
.get_fmt = imx323_get_fmt,
.set_fmt = imx323_set_fmt,
.get_mbus_config = imx323_g_mbus_config,
};
static const struct v4l2_subdev_ops imx323_subdev_ops = {
.core = &imx323_core_ops,
.video = &imx323_video_ops,
.pad = &imx323_pad_ops,
};
static int imx323_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx323 *imx323 = container_of(ctrl->handler,
struct imx323, ctrl_handler);
struct i2c_client *client = imx323->client;
int ret = 0;
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
ret = imx323_write_reg(imx323->client, IMX323_REG_EXPOSURE,
IMX323_REG_VALUE_16BIT, ctrl->val);
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = imx323_write_reg(imx323->client, IMX323_REG_ANALOG_GAIN,
IMX323_REG_VALUE_08BIT, ctrl->val);
break;
case V4L2_CID_VBLANK:
ret = imx323_write_reg(imx323->client, IMX323_REG_VTS,
IMX323_REG_VALUE_16BIT,
ctrl->val + imx323->cur_mode->height);
break;
case V4L2_CID_TEST_PATTERN:
ret = imx323_enable_test_pattern(imx323, 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 imx323_ctrl_ops = {
.s_ctrl = imx323_set_ctrl,
};
static int imx323_initialize_controls(struct imx323 *imx323)
{
const struct imx323_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &imx323->ctrl_handler;
mode = imx323->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 8);
if (ret)
return ret;
handler->lock = &imx323->mutex;
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, IMX323_PIXEL_RATE, 1, IMX323_PIXEL_RATE);
h_blank = mode->hts_def - mode->width;
imx323->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (imx323->hblank)
imx323->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
imx323->vblank = v4l2_ctrl_new_std(handler, &imx323_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
IMX323_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 1;
imx323->exposure = v4l2_ctrl_new_std(handler, &imx323_ctrl_ops,
V4L2_CID_EXPOSURE, IMX323_EXPOSURE_MIN,
exposure_max, IMX323_EXPOSURE_STEP,
mode->exp_def);
imx323->anal_gain = v4l2_ctrl_new_std(handler, &imx323_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
ANALOG_GAIN_DEFAULT);
imx323->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&imx323_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx323_test_pattern_menu) - 1,
0, 0, imx323_test_pattern_menu);
if (handler->error) {
ret = handler->error;
dev_err(&imx323->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
imx323->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int imx323_check_sensor_id(struct imx323 *imx323,
struct i2c_client *client)
{
struct device *dev = &imx323->client->dev;
u32 id = 0;
int ret;
ret = imx323_read_reg(client, IMX323_REG_CHIP_ID,
IMX323_REG_VALUE_08BIT, &id);
if (id != CHIP_ID) {
dev_err(dev, "Unexpected sensor id(%x), ret(%d)\n", id, ret);
return -ENODEV;
}
dev_info(dev, "Detected IMX323 sensor\n");
return 0;
}
static int imx323_configure_regulators(struct imx323 *imx323)
{
u32 i;
for (i = 0; i < IMX323_NUM_SUPPLIES; i++)
imx323->supplies[i].supply =
imx323_regulator[i].name;
return devm_regulator_bulk_get(&imx323->client->dev,
IMX323_NUM_SUPPLIES,
imx323->supplies);
}
static int imx323_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct imx323 *imx323;
struct v4l2_subdev *sd;
char facing[2];
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
imx323 = devm_kzalloc(dev, sizeof(*imx323), GFP_KERNEL);
if (!imx323)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&imx323->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&imx323->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&imx323->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&imx323->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
imx323->client = client;
imx323->cur_mode = &supported_modes[0];
imx323->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(imx323->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
imx323->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(imx323->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
imx323->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(imx323->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ret = imx323_configure_regulators(imx323);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&imx323->mutex);
sd = &imx323->subdev;
v4l2_i2c_subdev_init(sd, client, &imx323_subdev_ops);
ret = imx323_initialize_controls(imx323);
if (ret)
goto err_destroy_mutex;
ret = __imx323_power_on(imx323);
if (ret)
goto err_free_handler;
ret = imx323_check_sensor_id(imx323, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &imx323_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
imx323->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &imx323->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(imx323->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
imx323->module_index, facing,
IMX323_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev_sensor(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:
__imx323_power_off(imx323);
err_free_handler:
v4l2_ctrl_handler_free(&imx323->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&imx323->mutex);
return ret;
}
static void imx323_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx323 *imx323 = to_imx323(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&imx323->ctrl_handler);
mutex_destroy(&imx323->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__imx323_power_off(imx323);
pm_runtime_set_suspended(&client->dev);
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id imx323_of_match[] = {
{ .compatible = "sony,imx323" },
{},
};
MODULE_DEVICE_TABLE(of, imx323_of_match);
#endif
static const struct i2c_device_id imx323_match_id[] = {
{ "sony,imx323", 0 },
{ },
};
static struct i2c_driver imx323_i2c_driver = {
.driver = {
.name = IMX323_NAME,
.pm = &imx323_pm_ops,
.of_match_table = of_match_ptr(imx323_of_match),
},
.probe = &imx323_probe,
.remove = &imx323_remove,
.id_table = imx323_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&imx323_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&imx323_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("Sony imx323 sensor driver");
MODULE_LICENSE("GPL v2");
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