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android13/kernel-5.10/drivers/media/i2c/tp2855.c

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// SPDX-License-Identifier: GPL-2.0
/*
* tp2855 driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 first version.
*/
#define DEBUG
#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 <linux/slab.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>
#include <linux/pinctrl/consumer.h>
#include <linux/rk-preisp.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0)
#define TP2855_TEST_PATTERN 0
#define TP2855_XVCLK_FREQ 27000000
#define TP2855_LINK_FREQ_297M (297000000UL >> 1)
#define TP2855_LINK_FREQ_594M (594000000UL >> 1)
#define TP2855_LANES 4
#define TP2855_BITS_PER_SAMPLE 8
#define TP2855_NAME "tp2855"
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
enum{
CH_1=0,
CH_2=1,
CH_3=2,
CH_4=3,
CH_ALL=4,
MIPI_PAGE=8,
};
enum{
STD_TVI, //TVI
STD_HDA, //AHD
};
struct regval {
u8 addr;
u8 val;
};
struct tp2855_mode {
u32 bus_fmt;
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 mipi_freq_idx;
u32 bpp;
const struct regval *global_reg_list;
const struct regval *reg_list;
u32 hdr_mode;
u32 vc[PAD_MAX];
u32 channel_reso[PAD_MAX];
};
struct tp2855 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *power_gpio;
struct pinctrl *pinctrl;
struct pinctrl_state *pins_default;
struct pinctrl_state *pins_sleep;
struct v4l2_subdev subdev;
struct media_pad pad;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *pixel_rate;
struct v4l2_ctrl *link_freq;
struct mutex mutex;
bool power_on;
struct tp2855_mode *cur_mode;
u32 module_index;
u32 cfg_num;
const char *module_facing;
const char *module_name;
const char *len_name;
bool lost_video_status;
struct task_struct *detect_thread;
int streaming;
};
#define to_tp2855(sd) container_of(sd, struct tp2855, subdev)
static __maybe_unused const struct regval common_setting_297M_720p_25fps_regs[] = {
{0x40, 0x04},
{0xf5, 0x00},
{0x02, 0x42},
{0x07, 0xc0},
{0x0b, 0xc0},
{0x0c, 0x13},
{0x0d, 0x50},
{0x15, 0x13},
{0x16, 0x15},
{0x17, 0x00},
{0x18, 0x19},
{0x19, 0xd0},
{0x1a, 0x25},
{0x1c, 0x07},
{0x1d, 0xbc},
{0x20, 0x30},
{0x21, 0x84},
{0x22, 0x36},
{0x23, 0x3c},
#if TP2855_TEST_PATTERN
{0x2a, 0x3c}, //vi test
#endif
{0x2b, 0x60},
{0x2c, 0x0a},
{0x2d, 0x30},
{0x2e, 0x70},
{0x30, 0x48},
{0x31, 0xbb},
{0x32, 0x2e},
{0x33, 0x90},
{0x35, 0x25},
{0x38, 0x00},
{0x39, 0x18},
{0x40, 0x08},
{0x01, 0xf0},
{0x02, 0x01},
{0x08, 0x0f},
{0x20, 0x44},
{0x34, 0xe4},
{0x14, 0x44},
{0x15, 0x0d},
{0x25, 0x04},
{0x26, 0x03},
{0x27, 0x09},
{0x29, 0x02},
{0x33, 0x07},
{0x33, 0x00},
{0x14, 0xc4},
{0x14, 0x44},
// {0x23, 0x02}, //vi test ok
// {0x23, 0x00},
};
static __maybe_unused const struct regval common_setting_594M_1080p_25fps_regs[] = {
{0x40, 0x04},
{0xf5, 0x00},
{0x02, 0x40},
{0x07, 0xc0},
{0x0b, 0xc0},
{0x0c, 0x03},
{0x0d, 0x50},
{0x15, 0x03},
{0x16, 0xd2},
{0x17, 0x80},
{0x18, 0x29},
{0x19, 0x38},
{0x1a, 0x47},
{0x1c, 0x0a},
{0x1d, 0x50},
{0x20, 0x30},
{0x21, 0x84},
{0x22, 0x36},
{0x23, 0x3c},
#if TP2855_TEST_PATTERN
{0x2a, 0x3c}, //vi test
#endif
{0x2b, 0x60},
{0x2c, 0x0a},
{0x2d, 0x30},
{0x2e, 0x70},
{0x30, 0x48},
{0x31, 0xbb},
{0x32, 0x2e},
{0x33, 0x90},
{0x35, 0x05},
{0x38, 0x00},
{0x39, 0x1C},
{0x40, 0x08},
{0x01, 0xf0},
{0x02, 0x01},
{0x08, 0x0f},
{0x20, 0x44},
{0x34, 0xe4},
{0x15, 0x0C},
{0x25, 0x08},
{0x26, 0x06},
{0x27, 0x11},
{0x29, 0x0a},
{0x33, 0x07},
{0x33, 0x00},
{0x14, 0x33},
{0x14, 0xb3},
{0x14, 0x33},
// {0x23, 0x02}, //vi test ok
// {0x23, 0x00},
};
static struct tp2855_mode supported_modes[] = {
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 1920,
.height = 1080,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.global_reg_list = common_setting_594M_1080p_25fps_regs,
.mipi_freq_idx = 0,
.bpp = 8,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
.vc[PAD1] = V4L2_MBUS_CSI2_CHANNEL_1,
.vc[PAD2] = V4L2_MBUS_CSI2_CHANNEL_2,
.vc[PAD3] = V4L2_MBUS_CSI2_CHANNEL_3,
},
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 1280,
.height = 720,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.global_reg_list = common_setting_297M_720p_25fps_regs,
.mipi_freq_idx = 1,
.bpp = 8,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
.vc[PAD1] = V4L2_MBUS_CSI2_CHANNEL_1,
.vc[PAD2] = V4L2_MBUS_CSI2_CHANNEL_2,
.vc[PAD3] = V4L2_MBUS_CSI2_CHANNEL_3,
}
};
static const s64 link_freq_items[] = {
TP2855_LINK_FREQ_594M,
TP2855_LINK_FREQ_297M,
};
/* sensor register write */
static int tp2855_write_reg(struct i2c_client *client, u8 reg, u8 val)
{
struct i2c_msg msg;
u8 buf[2];
int ret;
buf[0] = reg & 0xFF;
buf[1] = val;
msg.addr = client->addr;
msg.flags = client->flags;
msg.buf = buf;
msg.len = sizeof(buf);
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret >= 0) {
usleep_range(300, 400);
return 0;
}
dev_err(&client->dev,
"tp2855 write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
static int tp2855_write_array(struct i2c_client *client,
const struct regval *regs, int size)
{
int i, ret = 0;
i = 0;
while (i < size) {
ret = tp2855_write_reg(client, regs[i].addr, regs[i].val);
if (ret) {
dev_err(&client->dev, "%s failed !\n", __func__);
break;
}
i++;
}
return ret;
}
/* sensor register read */
static int tp2855_read_reg(struct i2c_client *client, u8 reg, u8 *val)
{
struct i2c_msg msg[2];
u8 buf[1];
int ret;
buf[0] = reg & 0xFF;
msg[0].addr = client->addr;
msg[0].flags = client->flags;
msg[0].buf = buf;
msg[0].len = sizeof(buf);
msg[1].addr = client->addr;
msg[1].flags = client->flags | I2C_M_RD;
msg[1].buf = buf;
msg[1].len = 1;
ret = i2c_transfer(client->adapter, msg, 2);
if (ret >= 0) {
*val = buf[0];
return 0;
}
dev_err(&client->dev, "tp2855 read reg(0x%x) failed !\n", reg);
return ret;
}
static int tp2855_get_reso_dist(const struct tp2855_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct tp2855_mode *
tp2855_find_best_fit(struct tp2855 *tp2855,
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 < tp2855->cfg_num; i++) {
dist = tp2855_get_reso_dist(&supported_modes[i], framefmt);
if ((cur_best_fit_dist == -1 || dist <= cur_best_fit_dist) &&
supported_modes[i].bus_fmt == framefmt->code) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &supported_modes[cur_best_fit];
}
static int tp2855_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct tp2855 *tp2855 = to_tp2855(sd);
const struct tp2855_mode *mode;
u64 pixel_rate;
mutex_lock(&tp2855->mutex);
mode = tp2855_find_best_fit(tp2855, fmt);
fmt->format.code = mode->bus_fmt;
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.field = V4L2_FIELD_NONE;
fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
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(&tp2855->mutex);
return -ENOTTY;
#endif
} else {
__v4l2_ctrl_s_ctrl(tp2855->link_freq, mode->mipi_freq_idx);
pixel_rate = (u32)link_freq_items[mode->mipi_freq_idx] / mode->bpp * 2 * TP2855_LANES;
__v4l2_ctrl_s_ctrl_int64(tp2855->pixel_rate, pixel_rate);
dev_dbg(&tp2855->client->dev, "mipi_freq_idx %d\n", mode->mipi_freq_idx);
dev_dbg(&tp2855->client->dev, "pixel_rate %lld\n", pixel_rate);
}
mutex_unlock(&tp2855->mutex);
return 0;
}
static int tp2855_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct tp2855 *tp2855 = to_tp2855(sd);
struct i2c_client *client = tp2855->client;
const struct tp2855_mode *mode = tp2855->cur_mode;
mutex_lock(&tp2855->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(&tp2855->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = mode->bus_fmt;
fmt->format.field = V4L2_FIELD_NONE;
if (fmt->pad < PAD_MAX && fmt->pad >= PAD0)
fmt->reserved[0] = mode->vc[fmt->pad];
else
fmt->reserved[0] = mode->vc[PAD0];
}
mutex_unlock(&tp2855->mutex);
dev_dbg(&client->dev, "%s: %x %dx%d\n",
__func__, fmt->format.code,
fmt->format.width, fmt->format.height);
return 0;
}
static int tp2855_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct tp2855 *tp2855 = to_tp2855(sd);
if (code->index != 0)
return -EINVAL;
code->code = tp2855->cur_mode->bus_fmt;
return 0;
}
static int tp2855_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct tp2855 *tp2855 = to_tp2855(sd);
struct i2c_client *client = tp2855->client;
dev_dbg(&client->dev, "%s:\n", __func__);
if (fse->index >= tp2855->cfg_num)
return -EINVAL;
if (fse->code != supported_modes[fse->index].bus_fmt)
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 tp2855_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
cfg->type = V4L2_MBUS_CSI2;
cfg->flags = V4L2_MBUS_CSI2_4_LANE |
V4L2_MBUS_CSI2_CHANNELS;
return 0;
}
static void tp2855_get_module_inf(struct tp2855 *tp2855,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, TP2855_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, tp2855->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, tp2855->len_name, sizeof(inf->base.lens));
}
static long tp2855_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct tp2855 *tp2855 = to_tp2855(sd);
long ret = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
tp2855_get_module_inf(tp2855, (struct rkmodule_inf *)arg);
break;
default:
ret = -ENOTTY;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long tp2855_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;
long ret = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = tp2855_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 = tp2855_ioctl(sd, cmd, cfg);
kfree(cfg);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int detect_thread_function(void *data)
{
struct tp2855 *tp2855 = (struct tp2855 *) data;
struct i2c_client *client = tp2855->client;
u8 detect_status = 0, reg26_val = 0;
bool lost_video = false;
tp2855->lost_video_status = true;
while (!kthread_should_stop()) {
if (tp2855->power_on) {
tp2855_write_reg(client, 0x40, 0x04);
tp2855_read_reg(client, 0x01, &detect_status);
tp2855_read_reg(client, 0x26, &reg26_val);
lost_video = (detect_status & 0x80) ? true : false;
if (tp2855->lost_video_status != lost_video) {
if (lost_video) {
tp2855_write_reg(client, 0x26, (reg26_val & 0xfe));
} else {
tp2855_write_reg(client, 0x26, (reg26_val | 0x01));
}
tp2855->lost_video_status = lost_video;
tp2855_read_reg(client, 0x26, &reg26_val);
dev_err(&client->dev, "tp2855 detect video lost status %d reg26_val %x\n",
lost_video, reg26_val);
}
}
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(200));
}
return 0;
}
static int __maybe_unused detect_thread_start(struct tp2855 *tp2855) {
int ret = 0;
struct i2c_client *client = tp2855->client;
tp2855->detect_thread = kthread_create(detect_thread_function,
tp2855, "tp2855_kthread");
if (IS_ERR(tp2855->detect_thread)) {
dev_err(&client->dev, "kthread_create tp2855_kthread failed\n");
ret = PTR_ERR(tp2855->detect_thread);
tp2855->detect_thread = NULL;
return ret;
}
wake_up_process(tp2855->detect_thread);
return ret;
}
static int __maybe_unused detect_thread_stop(struct tp2855 *tp2855) {
if (tp2855->detect_thread)
kthread_stop(tp2855->detect_thread);
tp2855->detect_thread = NULL;
return 0;
}
static int __tp2855_start_stream(struct tp2855 *tp2855)
{
int ret;
int array_size = 0;
struct i2c_client *client = tp2855->client;
if (tp2855->cur_mode->global_reg_list == common_setting_594M_1080p_25fps_regs) {
array_size = ARRAY_SIZE(common_setting_594M_1080p_25fps_regs);
} else if (tp2855->cur_mode->global_reg_list == common_setting_297M_720p_25fps_regs) {
array_size = ARRAY_SIZE(common_setting_297M_720p_25fps_regs);
} else {
return -1;
}
ret = tp2855_write_array(tp2855->client,
tp2855->cur_mode->global_reg_list, array_size);
if (ret) {
dev_err(&client->dev, "__tp2855_start_stream global_reg_list faild");
return ret;
}
detect_thread_start(tp2855);
return 0;
}
static int __tp2855_stop_stream(struct tp2855 *tp2855)
{
struct i2c_client *client = tp2855->client;
tp2855_write_reg(client, 0x40, 0x08);
tp2855_write_reg(client, 0x23, 0x02);
detect_thread_stop(tp2855);
return 0;
}
static int tp2855_stream(struct v4l2_subdev *sd, int on)
{
struct tp2855 *tp2855 = to_tp2855(sd);
struct i2c_client *client = tp2855->client;
dev_dbg(&client->dev, "s_stream: %d. %dx%d\n", on,
tp2855->cur_mode->width,
tp2855->cur_mode->height);
mutex_lock(&tp2855->mutex);
on = !!on;
if (tp2855->streaming == on)
goto unlock;
if (on) {
__tp2855_start_stream(tp2855);
} else {
__tp2855_stop_stream(tp2855);
}
tp2855->streaming = on;
unlock:
mutex_unlock(&tp2855->mutex);
return 0;
}
static int tp2855_power(struct v4l2_subdev *sd, int on)
{
struct tp2855 *tp2855 = to_tp2855(sd);
struct i2c_client *client = tp2855->client;
int ret = 0;
mutex_lock(&tp2855->mutex);
/* If the power state is not modified - no work to do. */
if (tp2855->power_on == !!on)
goto exit;
dev_dbg(&client->dev, "%s: on %d\n", __func__, on);
if (on) {
ret = pm_runtime_get_sync(&client->dev);
if (ret < 0) {
pm_runtime_put_noidle(&client->dev);
goto exit;
}
tp2855->power_on = true;
} else {
pm_runtime_put(&client->dev);
tp2855->power_on = false;
}
exit:
mutex_unlock(&tp2855->mutex);
return ret;
}
static int __tp2855_power_on(struct tp2855 *tp2855)
{
int ret;
struct device *dev = &tp2855->client->dev;
dev_dbg(dev, "%s\n", __func__);
if (!IS_ERR_OR_NULL(tp2855->pins_default)) {
ret = pinctrl_select_state(tp2855->pinctrl,
tp2855->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins. ret=%d\n", ret);
}
if (!IS_ERR(tp2855->power_gpio)) {
gpiod_set_value_cansleep(tp2855->power_gpio, 1);
usleep_range(25*1000, 30*1000);
}
usleep_range(1500, 2000);
ret = clk_set_rate(tp2855->xvclk, TP2855_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate\n");
if (clk_get_rate(tp2855->xvclk) != TP2855_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched\n");
ret = clk_prepare_enable(tp2855->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
goto err_clk;
}
if (!IS_ERR(tp2855->reset_gpio)) {
gpiod_set_value_cansleep(tp2855->reset_gpio, 1);
usleep_range(10*1000, 20*1000);
gpiod_set_value_cansleep(tp2855->reset_gpio, 0);
usleep_range(10*1000, 20*1000);
}
usleep_range(10*1000, 20*1000);
return 0;
err_clk:
if (!IS_ERR(tp2855->reset_gpio))
gpiod_set_value_cansleep(tp2855->reset_gpio, 0);
if (!IS_ERR_OR_NULL(tp2855->pins_sleep))
pinctrl_select_state(tp2855->pinctrl, tp2855->pins_sleep);
return ret;
}
static void __tp2855_power_off(struct tp2855 *tp2855)
{
int ret;
struct device *dev = &tp2855->client->dev;
dev_dbg(dev, "%s\n", __func__);
if (!IS_ERR(tp2855->reset_gpio))
gpiod_set_value_cansleep(tp2855->reset_gpio, 0);
clk_disable_unprepare(tp2855->xvclk);
if (!IS_ERR_OR_NULL(tp2855->pins_sleep)) {
ret = pinctrl_select_state(tp2855->pinctrl,
tp2855->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
if (!IS_ERR(tp2855->power_gpio))
gpiod_set_value_cansleep(tp2855->power_gpio, 0);
}
static int tp2855_initialize_controls(struct tp2855 *tp2855)
{
const struct tp2855_mode *mode;
struct v4l2_ctrl_handler *handler;
u64 pixel_rate;
int ret;
handler = &tp2855->ctrl_handler;
mode = tp2855->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 2);
if (ret)
return ret;
handler->lock = &tp2855->mutex;
tp2855->link_freq = v4l2_ctrl_new_int_menu(handler, NULL,
V4L2_CID_LINK_FREQ,
ARRAY_SIZE(link_freq_items) - 1, 0,
link_freq_items);
__v4l2_ctrl_s_ctrl(tp2855->link_freq, mode->mipi_freq_idx);
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
pixel_rate = (u32)link_freq_items[mode->mipi_freq_idx] / mode->bpp * 2 * TP2855_LANES;
tp2855->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
V4L2_CID_PIXEL_RATE, 0, pixel_rate,
1, pixel_rate);
if (handler->error) {
ret = handler->error;
dev_err(&tp2855->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
tp2855->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int tp2855_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct tp2855 *tp2855 = to_tp2855(sd);
return __tp2855_power_on(tp2855);
}
static int tp2855_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct tp2855 *tp2855 = to_tp2855(sd);
__tp2855_power_off(tp2855);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int tp2855_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct tp2855 *tp2855 = to_tp2855(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct tp2855_mode *def_mode = &supported_modes[0];
dev_dbg(&tp2855->client->dev, "%s\n", __func__);
mutex_lock(&tp2855->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = def_mode->bus_fmt;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&tp2855->mutex);
/* No crop or compose */
return 0;
}
#endif
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops tp2855_internal_ops = {
.open = tp2855_open,
};
#endif
static const struct v4l2_subdev_video_ops tp2855_video_ops = {
.s_stream = tp2855_stream,
.g_mbus_config = tp2855_g_mbus_config,
};
static const struct v4l2_subdev_pad_ops tp2855_subdev_pad_ops = {
.enum_mbus_code = tp2855_enum_mbus_code,
.enum_frame_size = tp2855_enum_frame_sizes,
.get_fmt = tp2855_get_fmt,
.set_fmt = tp2855_set_fmt,
};
static const struct v4l2_subdev_core_ops tp2855_core_ops = {
.s_power = tp2855_power,
.ioctl = tp2855_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = tp2855_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_ops tp2855_subdev_ops = {
.core = &tp2855_core_ops,
.video = &tp2855_video_ops,
.pad = &tp2855_subdev_pad_ops,
};
static int check_chip_id(struct i2c_client *client){
struct device *dev = &client->dev;
unsigned char chip_id = 0xFF;
tp2855_read_reg(client, 0x34, &chip_id);
dev_err(dev, "chip_id : 0x%2x\n", chip_id);
if (chip_id != 0x0) {
return -1;
}
return 0;
}
static int tp2855_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct tp2855 *tp2855;
struct v4l2_subdev *sd;
__maybe_unused char facing[2];
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
tp2855 = devm_kzalloc(dev, sizeof(*tp2855), GFP_KERNEL);
if (!tp2855)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&tp2855->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&tp2855->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&tp2855->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&tp2855->len_name);
if (ret) {
dev_err(dev, "could not get %s!\n", RKMODULE_CAMERA_LENS_NAME);
return -EINVAL;
}
tp2855->client = client;
tp2855->cur_mode = &supported_modes[0];
tp2855->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(tp2855->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
tp2855->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(tp2855->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
tp2855->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(tp2855->power_gpio))
dev_warn(dev, "Failed to get power-gpios\n");
tp2855->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(tp2855->pinctrl)) {
tp2855->pins_default =
pinctrl_lookup_state(tp2855->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(tp2855->pins_default))
dev_info(dev, "could not get default pinstate\n");
tp2855->pins_sleep =
pinctrl_lookup_state(tp2855->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(tp2855->pins_sleep))
dev_info(dev, "could not get sleep pinstate\n");
} else {
dev_info(dev, "no pinctrl\n");
}
mutex_init(&tp2855->mutex);
sd = &tp2855->subdev;
v4l2_i2c_subdev_init(sd, client, &tp2855_subdev_ops);
ret = tp2855_initialize_controls(tp2855);
if (ret) {
dev_err(dev, "Failed to initialize controls tp2855\n");
goto err_destroy_mutex;
}
ret = __tp2855_power_on(tp2855);
if (ret) {
dev_err(dev, "Failed to power on tp2855\n");
goto err_free_handler;
}
ret = check_chip_id(client);
if (ret) {
dev_err(dev, "Failed to check senosr id\n");
goto err_free_handler;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &tp2855_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
tp2855->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &tp2855->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(tp2855->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
tp2855->module_index, facing,
TP2855_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev_sensor_common(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:
__tp2855_power_off(tp2855);
err_free_handler:
v4l2_ctrl_handler_free(&tp2855->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&tp2855->mutex);
return ret;
}
static int tp2855_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct tp2855 *tp2855 = to_tp2855(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&tp2855->ctrl_handler);
mutex_destroy(&tp2855->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__tp2855_power_off(tp2855);
pm_runtime_set_suspended(&client->dev);
return 0;
}
static const struct dev_pm_ops tp2855_pm_ops = {
SET_RUNTIME_PM_OPS(tp2855_runtime_suspend,
tp2855_runtime_resume, NULL)
};
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id tp2855_of_match[] = {
{ .compatible = "tp2855" },
{},
};
MODULE_DEVICE_TABLE(of, tp2855_of_match);
#endif
static const struct i2c_device_id tp2855_match_id[] = {
{ "tp2855", 0 },
{ },
};
static struct i2c_driver tp2855_i2c_driver = {
.driver = {
.name = TP2855_NAME,
.pm = &tp2855_pm_ops,
.of_match_table = of_match_ptr(tp2855_of_match),
},
.probe = &tp2855_probe,
.remove = &tp2855_remove,
.id_table = tp2855_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&tp2855_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&tp2855_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_AUTHOR("Vicent Chi <vicent.chi@rock-chips.com>");
MODULE_DESCRIPTION("tp2855 sensor driver");
MODULE_LICENSE("GPL v2");
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