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HYL_OK3568_LINUX/kernel-rt/drivers/media/i2c/gc1054.c
HYL c6e7b553e6 first commit
2025-05-10 21:49:39 +08:00

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// SPDX-License-Identifier: GPL-2.0
/*
* gc1054 sensor driver
*
* Copyright (C) 2021 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 first version.
* V0.0X01.0X01 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>
#include <linux/rk-preisp.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x02)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define GC1054_NAME "gc1054"
#define GC1054_MEDIA_BUS_FMT MEDIA_BUS_FMT_SRGGB10_1X10
#define MIPI_FREQ_297M 297000000
#define GC1054_XVCLK_FREQ 27000000
#define GC1054_PIXEL_RATE (47250000)
#define GC1054_XVCLK_FREQ 27000000
#define GC1054_PAGE_SELECT 0xFE
#define GC1054_REG_CHIP_ID_H 0xF0
#define GC1054_REG_CHIP_ID_L 0xF1
#define GC1054_REG_EXP_H 0x03
#define GC1054_REG_EXP_L 0x04
#define GC1054_REG_VTS_H 0x41
#define GC1054_REG_VTS_L 0x42
#define GC1054_REG_CTRL_MODE 0x3E
#define GC1054_MODE_SW_STANDBY 0x11
#define GC1054_MODE_STREAMING 0x91
#define REG_NULL 0xFF
#define GC1054_CHIP_ID 0x1054
#define GC1054_VTS_MAX 0x3FFF
#define GC1054_HTS_MAX 0xFFF
#define GC1054_EXPOSURE_MAX 0x3FFF
#define GC1054_EXPOSURE_MIN 1
#define GC1054_EXPOSURE_STEP 1
#define GC1054_GAIN_MIN 0x40
#define GC1054_GAIN_MAX 0x2000
#define GC1054_GAIN_STEP 1
#define GC1054_GAIN_DEFAULT 64
#define GC1054_LANES 2
#define GC1054_REG_VALUE_08BIT 1
#define GC1054_REG_VALUE_16BIT 2
#define GC1054_REG_VALUE_24BIT 3
#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb))
#define GC1054_FLIP_MIRROR_REG 0x17
#define GC_MIRROR_BIT_MASK BIT(0)
#define GC_FLIP_BIT_MASK BIT(1)
#define PIX_FORMAT MEDIA_BUS_FMT_SRGGB10_1X10
#define GC1054_NAME "gc1054"
static const char * const gc1054_supply_names[] = {
"vcc2v8_dvp", /* Analog power */
"vcc1v8_dvp", /* Digital I/O power */
"vdd1v5_dvp", /* Digital core power */
};
#define GC1054_NUM_SUPPLIES ARRAY_SIZE(gc1054_supply_names)
#define to_gc1054(sd) container_of(sd, struct gc1054, subdev)
enum gc1054_max_pad {
PAD0,
PAD_MAX,
};
struct regval {
u8 addr;
u8 val;
};
struct gc1054_mode {
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
u32 hdr_mode;
const struct regval *reg_list;
};
struct gc1054 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[GC1054_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 gc1054_mode *cur_mode;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
#define to_gc1054(sd) container_of(sd, struct gc1054, subdev)
/*
* window_size=1920*1080 mipi@2lane
* mclk=24mhz,mipi_clk=594Mbps
* pixel_line_total=2200,line_frame_total=1125
* row_time=29.629us,frame_rate=30fps
*/
static const struct regval gc1054_1280x720_regs_dvp[] = {
//window_size=1920*1080
//mclk=27mhz,pclk=47.25mhz
//pixel_line_total=2200,line_frame_total=1125
//row_time=29.629us,frame_rate=30fps
/****system****/
{0xf2, 0x00},
{0xf6, 0x00},
{0xfc, 0x04},
{0xf7, 0x01},
{0xf8, 0x0d},
{0xf9, 0x00},
{0xfa, 0x80},
{0xfc, 0x0e},
{0xfe, 0x00},
{0x03, 0x02},
{0x04, 0xa6},
{0x05, 0x03},
{0x06, 0x94},
{0x07, 0x00},
{0x08, 0x0a},
{0x09, 0x00},
{0x0a, 0x04},
{0x0b, 0x00},
{0x0c, 0x00},
{0x0d, 0x02},
{0x0e, 0xd4},
{0x0f, 0x05},
{0x10, 0x08},
{0x17, 0xc0},
{0x18, 0x02},
{0x19, 0x08},
{0x1a, 0x18},
{0x1d, 0x12},
{0x1e, 0x50},
{0x1f, 0x80},
{0x21, 0x30},
{0x23, 0xf8},
{0x25, 0x10},
{0x28, 0x20},
{0x34, 0x0a},
{0x3c, 0x10},
{0x3d, 0x0e},
{0xcc, 0x8e},
{0xcd, 0x9a},
{0xcf, 0x70},
{0xd0, 0xa9},
{0xd1, 0xc5},
{0xd2, 0xed},
{0xd8, 0x3c},
{0xd9, 0x7a},
{0xda, 0x12},
{0xdb, 0x50},
{0xde, 0x0c},
{0xe3, 0x60},
{0xe4, 0x78},
{0xfe, 0x01},
{0xe3, 0x01},
{0xe6, 0x10},
{0xfe, 0x01},
{0x80, 0x50},
{0x88, 0x23},
{0x89, 0x03},
{0x90, 0x01},
{0x92, 0x02},
{0x94, 0x03},
{0x95, 0x02},
{0x96, 0xd0},
{0x97, 0x05},
{0x98, 0x00},
{0xfe, 0x01},
{0x40, 0x22},
{0x43, 0x03},
{0x4e, 0x3c},
{0x4f, 0x00},
{0x60, 0x00},
{0x61, 0x80},
{0xfe, 0x01},
{0xb0, 0x48},
{0xb1, 0x01},
{0xb2, 0x00},
{0xb6, 0x00},
{0xfe, 0x02},
{0x01, 0x00},
{0x02, 0x01},
{0x03, 0x02},
{0x04, 0x03},
{0x05, 0x04},
{0x06, 0x05},
{0x07, 0x06},
{0x08, 0x0e},
{0x09, 0x16},
{0x0a, 0x1e},
{0x0b, 0x36},
{0x0c, 0x3e},
{0x0d, 0x56},
{0xfe, 0x02},
{0xb0, 0x00},
{0xb1, 0x00},
{0xb2, 0x00},
{0xb3, 0x11},
{0xb4, 0x22},
{0xb5, 0x54},
{0xb6, 0xb8},
{0xb7, 0x60},
{0xb9, 0x00},
{0xba, 0xc0},
{0xc0, 0x20},
{0xc1, 0x2d},
{0xc2, 0x40},
{0xc3, 0x5b},
{0xc4, 0x80},
{0xc5, 0xb5},
{0xc6, 0x00},
{0xc7, 0x6a},
{0xc8, 0x00},
{0xc9, 0xd4},
{0xca, 0x00},
{0xcb, 0xa8},
{0xcc, 0x00},
{0xcd, 0x50},
{0xce, 0x00},
{0xcf, 0xa1},
{0xfe, 0x02},
{0x54, 0xf7},
{0x55, 0xf0},
{0x56, 0x00},
{0x57, 0x00},
{0x58, 0x00},
{0x5a, 0x04},
{0xfe, 0x04},
{0x81, 0x8a},
{0xfe, 0x03},
{0x01, 0x00},
{0x02, 0x00},
{0x03, 0x00},
{0x10, 0x11},
{0x15, 0x00},
{0x40, 0x01},
{0x41, 0x00},
{0xfe, 0x00},
{0xf2, 0x0f},
{REG_NULL, 0x00},
};
static const struct gc1054_mode supported_modes[] = {
{
.width = 1280,
.height = 720,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.exp_def = 0x2D0,
.hts_def = 0x834,
.vts_def = 0x2ee,
.reg_list = gc1054_1280x720_regs_dvp,
.hdr_mode = NO_HDR,
},
};
/* sensor register write */
static int gc1054_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)
return 0;
dev_err(&client->dev,
"gc1054 write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
static int gc1054_write_array(struct i2c_client *client,
const struct regval *regs)
{
int i, ret = 0;
i = 0;
while (regs[i].addr != REG_NULL) {
ret = gc1054_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 gc1054_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,
"gc1054 read reg(0x%x val:0x%x) failed !\n", reg, *val);
return ret;
}
static int gc1054_get_reso_dist(const struct gc1054_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct gc1054_mode *
gc1054_find_best_fit(struct gc1054 *gc1054, 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 = gc1054_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 gc1054_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc1054 *gc1054 = to_gc1054(sd);
const struct gc1054_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&gc1054->mutex);
mode = gc1054_find_best_fit(gc1054, 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, cfg, fmt->pad) = fmt->format;
#else
mutex_unlock(&gc1054->mutex);
return -ENOTTY;
#endif
} else {
gc1054->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(gc1054->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(gc1054->vblank, vblank_def,
GC1054_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&gc1054->mutex);
return 0;
}
static int gc1054_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc1054 *gc1054 = to_gc1054(sd);
const struct gc1054_mode *mode = gc1054->cur_mode;
mutex_lock(&gc1054->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(&gc1054->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(&gc1054->mutex);
return 0;
}
#define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4)
#define DST_WIDTH 1280
#define DST_HEIGHT 720
static int gc1054_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct gc1054 *gc1054 = to_gc1054(sd);
if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {
sel->r.left = CROP_START(gc1054->cur_mode->width, DST_WIDTH);
sel->r.width = DST_WIDTH;
sel->r.top = CROP_START(gc1054->cur_mode->height, DST_HEIGHT);
sel->r.height = DST_HEIGHT;
return 0;
}
return -EINVAL;
}
static int gc1054_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 = PIX_FORMAT;
return 0;
}
static int gc1054_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 != 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 void gc1054_get_module_inf(struct gc1054 *gc1054,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, GC1054_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, gc1054->module_name,
sizeof(inf->base.module));
strscpy(inf->base.lens, gc1054->len_name, sizeof(inf->base.lens));
}
static long gc1054_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct gc1054 *gc1054 = to_gc1054(sd);
struct rkmodule_hdr_cfg *hdr_cfg;
long ret = 0;
u32 stream = 0;
switch (cmd) {
case PREISP_CMD_SET_HDRAE_EXP:
return -1;
case RKMODULE_GET_HDR_CFG:
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
hdr_cfg->esp.mode = HDR_NORMAL_VC;
hdr_cfg->hdr_mode = gc1054->cur_mode->hdr_mode;
break;
case RKMODULE_SET_HDR_CFG:
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
if (hdr_cfg->hdr_mode != 0)
ret = -1;
break;
case RKMODULE_SET_CONVERSION_GAIN:
break;
case RKMODULE_GET_MODULE_INFO:
gc1054_get_module_inf(gc1054, (struct rkmodule_inf *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = gc1054_write_reg(gc1054->client,
GC1054_REG_CTRL_MODE,
GC1054_MODE_STREAMING);
else
ret = gc1054_write_reg(gc1054->client,
GC1054_REG_CTRL_MODE,
GC1054_MODE_SW_STANDBY);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long gc1054_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
struct rkmodule_hdr_cfg *hdr;
struct preisp_hdrae_exp_s *hdrae;
long ret = 0;
u32 stream = 0;
u32 cg = 0;
switch (cmd) {
case RKMODULE_GET_HDR_CFG:
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
if (!hdr) {
ret = -ENOMEM;
return ret;
}
ret = gc1054_ioctl(sd, cmd, hdr);
if (!ret) {
ret = copy_to_user(up, hdr, sizeof(*hdr));
if (ret)
ret = -EFAULT;
}
kfree(hdr);
break;
case RKMODULE_SET_HDR_CFG:
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
if (!hdr) {
ret = -ENOMEM;
return ret;
}
if (copy_from_user(hdr, up, sizeof(*hdr))) {
kfree(hdr);
return -EFAULT;
}
gc1054_ioctl(sd, cmd, hdr);
kfree(hdr);
break;
case RKMODULE_SET_CONVERSION_GAIN:
if (copy_from_user(&cg, up, sizeof(cg)))
return -EFAULT;
gc1054_ioctl(sd, cmd, &cg);
break;
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = gc1054_ioctl(sd, cmd, inf);
if (!ret) {
ret = copy_to_user(up, inf, sizeof(*inf));
if (ret)
ret = -EFAULT;
}
kfree(inf);
break;
case RKMODULE_SET_QUICK_STREAM:
if (copy_from_user(&stream, up, sizeof(u32)))
return -EFAULT;
gc1054_ioctl(sd, cmd, &stream);
break;
case PREISP_CMD_SET_HDRAE_EXP:
hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL);
if (!hdrae) {
ret = -ENOMEM;
return ret;
}
if (copy_from_user(hdrae, up, sizeof(*hdrae))) {
kfree(hdrae);
return -EFAULT;
}
gc1054_ioctl(sd, cmd, hdrae);
kfree(hdrae);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __gc1054_start_stream(struct gc1054 *gc1054)
{
int ret;
ret = gc1054_write_array(gc1054->client, gc1054->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
mutex_unlock(&gc1054->mutex);
ret = v4l2_ctrl_handler_setup(&gc1054->ctrl_handler);
mutex_lock(&gc1054->mutex);
if (ret)
return ret;
return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE,
GC1054_MODE_STREAMING);
}
static int __gc1054_stop_stream(struct gc1054 *gc1054)
{
return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE,
GC1054_MODE_SW_STANDBY);
}
static int gc1054_s_stream(struct v4l2_subdev *sd, int on)
{
struct gc1054 *gc1054 = to_gc1054(sd);
struct i2c_client *client = gc1054->client;
int ret = 0;
mutex_lock(&gc1054->mutex);
on = !!on;
if (on == gc1054->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 = __gc1054_start_stream(gc1054);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__gc1054_stop_stream(gc1054);
pm_runtime_put(&client->dev);
}
gc1054->streaming = on;
unlock_and_return:
mutex_unlock(&gc1054->mutex);
return 0;
}
static int gc1054_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct gc1054 *gc1054 = to_gc1054(sd);
const struct gc1054_mode *mode = gc1054->cur_mode;
mutex_lock(&gc1054->mutex);
fi->interval = mode->max_fps;
mutex_unlock(&gc1054->mutex);
return 0;
}
static int gc1054_s_power(struct v4l2_subdev *sd, int on)
{
struct gc1054 *gc1054 = to_gc1054(sd);
struct i2c_client *client = gc1054->client;
int ret = 0;
mutex_lock(&gc1054->mutex);
/* If the power state is not modified - no work to do. */
if (gc1054->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;
}
gc1054->power_on = true;
} else {
pm_runtime_put(&client->dev);
gc1054->power_on = false;
}
unlock_and_return:
mutex_unlock(&gc1054->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 gc1054_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, GC1054_XVCLK_FREQ / 1000 / 1000);
}
static int __gc1054_power_on(struct gc1054 *gc1054)
{
int ret;
u32 delay_us;
struct device *dev = &gc1054->client->dev;
ret = clk_set_rate(gc1054->xvclk, GC1054_XVCLK_FREQ);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
return ret;
}
if (clk_get_rate(gc1054->xvclk) != GC1054_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(gc1054->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(gc1054->reset_gpio))
gpiod_set_value_cansleep(gc1054->reset_gpio, 1);
ret = regulator_bulk_enable(GC1054_NUM_SUPPLIES, gc1054->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
/* According to datasheet, at least 10ms for reset duration */
usleep_range(10 * 1000, 15 * 1000);
if (!IS_ERR(gc1054->pwdn_gpio))
gpiod_set_value_cansleep(gc1054->pwdn_gpio, 0);
usleep_range(5 * 1000, 10 * 1000);
if (!IS_ERR(gc1054->reset_gpio))
gpiod_set_value_cansleep(gc1054->reset_gpio, 0);
/* 8192 cycles prior to first SCCB transaction */
delay_us = gc1054_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(gc1054->xvclk);
return ret;
}
static void __gc1054_power_off(struct gc1054 *gc1054)
{
if (!IS_ERR(gc1054->pwdn_gpio))
gpiod_set_value_cansleep(gc1054->pwdn_gpio, 1);
clk_disable_unprepare(gc1054->xvclk);
if (!IS_ERR(gc1054->reset_gpio))
gpiod_set_value_cansleep(gc1054->reset_gpio, 1);
regulator_bulk_disable(GC1054_NUM_SUPPLIES, gc1054->supplies);
}
static int gc1054_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc1054 *gc1054 = to_gc1054(sd);
return __gc1054_power_on(gc1054);
}
static int gc1054_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc1054 *gc1054 = to_gc1054(sd);
__gc1054_power_off(gc1054);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc1054_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct gc1054 *gc1054 = to_gc1054(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct gc1054_mode *def_mode = &supported_modes[0];
mutex_lock(&gc1054->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(&gc1054->mutex);
/* No crop or compose */
return 0;
}
#endif
static int gc1054_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *config)
{
config->type = V4L2_MBUS_PARALLEL;
config->flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH |
V4L2_MBUS_VSYNC_ACTIVE_LOW |
V4L2_MBUS_PCLK_SAMPLE_RISING;
return 0;
}
static int gc1054_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
if (fie->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fie->code != PIX_FORMAT)
return -EINVAL;
fie->code = GC1054_MEDIA_BUS_FMT;
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 gc1054_pm_ops = {
SET_RUNTIME_PM_OPS(gc1054_runtime_suspend,
gc1054_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops gc1054_internal_ops = {
.open = gc1054_open,
};
#endif
static const struct v4l2_subdev_core_ops gc1054_core_ops = {
.s_power = gc1054_s_power,
.ioctl = gc1054_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = gc1054_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops gc1054_video_ops = {
.s_stream = gc1054_s_stream,
.g_frame_interval = gc1054_g_frame_interval,
.g_mbus_config = gc1054_g_mbus_config,
};
static const struct v4l2_subdev_pad_ops gc1054_pad_ops = {
.enum_mbus_code = gc1054_enum_mbus_code,
.enum_frame_size = gc1054_enum_frame_sizes,
.enum_frame_interval = gc1054_enum_frame_interval,
.get_fmt = gc1054_get_fmt,
.set_fmt = gc1054_set_fmt,
.get_selection = gc1054_get_selection,
};
static const struct v4l2_subdev_ops gc1054_subdev_ops = {
.core = &gc1054_core_ops,
.video = &gc1054_video_ops,
.pad = &gc1054_pad_ops,
};
static uint32_t gain_level_table[12] = {
64,
91,
127,
182,
258,
369,
516,
738,
1032,
1491,
2084,
0xffffffff,
};
static int gc1054_set_gain(struct gc1054 *gc1054, u32 gain)
{
int Analog_Index;
u32 tol_dig_gain = 0;
static int total;
total = sizeof(gain_level_table) / sizeof(u32) - 1;
for (Analog_Index = 0; Analog_Index < total; Analog_Index++) {
if ((gain_level_table[Analog_Index] <= gain) &&
(gain < gain_level_table[Analog_Index+1]))
break;
}
tol_dig_gain = gain*64/gain_level_table[Analog_Index];
gc1054_write_reg(gc1054->client, 0xfe, 0x01);
gc1054_write_reg(gc1054->client, 0xb6, Analog_Index);
gc1054_write_reg(gc1054->client, 0xb1, (tol_dig_gain>>6));
gc1054_write_reg(gc1054->client, 0xb2, ((tol_dig_gain&0x3f)<<2));
gc1054_write_reg(gc1054->client, 0xfe, 0x00);
return 0;
}
static int gc1054_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct gc1054 *gc1054 = container_of(ctrl->handler,
struct gc1054, ctrl_handler);
struct i2c_client *client = gc1054->client;
s64 max;
int ret = 0;
u32 vts = 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 = gc1054->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(gc1054->exposure,
gc1054->exposure->minimum, max,
gc1054->exposure->step,
gc1054->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
ret = gc1054_write_reg(gc1054->client, GC1054_REG_EXP_H,
(ctrl->val >> 8) & 0x3f);
ret |= gc1054_write_reg(gc1054->client, GC1054_REG_EXP_L,
ctrl->val & 0xff);
break;
case V4L2_CID_ANALOGUE_GAIN:
gc1054_set_gain(gc1054, ctrl->val);
break;
case V4L2_CID_VBLANK:
vts = ctrl->val + gc1054->cur_mode->height;
ret = gc1054_write_reg(gc1054->client,
GC1054_REG_VTS_H,
(vts >> 8) & 0x3f);
ret |= gc1054_write_reg(gc1054->client,
GC1054_REG_VTS_L,
vts & 0xff);
break;
case V4L2_CID_HFLIP:
break;
case V4L2_CID_VFLIP:
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 gc1054_ctrl_ops = {
.s_ctrl = gc1054_set_ctrl,
};
static int gc1054_initialize_controls(struct gc1054 *gc1054)
{
const struct gc1054_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &gc1054->ctrl_handler;
mode = gc1054->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 8);
if (ret)
return ret;
handler->lock = &gc1054->mutex;
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, GC1054_PIXEL_RATE, 1, GC1054_PIXEL_RATE);
h_blank = mode->hts_def - mode->width;
gc1054->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (gc1054->hblank)
gc1054->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
gc1054->vblank = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
GC1054_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def;
//exposure_max = mode->vts_def - 4;
gc1054->exposure = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
V4L2_CID_EXPOSURE,
GC1054_EXPOSURE_MIN,
exposure_max,
GC1054_EXPOSURE_STEP,
mode->exp_def);
gc1054->anal_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN,
GC1054_GAIN_MIN,
GC1054_GAIN_MAX,
GC1054_GAIN_STEP,
GC1054_GAIN_DEFAULT);
/* Digital gain */
gc1054->digi_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
V4L2_CID_DIGITAL_GAIN,
GC1054_GAIN_MIN,
GC1054_GAIN_MAX,
GC1054_GAIN_STEP,
GC1054_GAIN_DEFAULT);
if (handler->error) {
ret = handler->error;
dev_err(&gc1054->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
gc1054->subdev.ctrl_handler = handler;
// gc1054->digi_gain = GC1054_GAIN_DEFAULT;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int gc1054_check_sensor_id(struct gc1054 *gc1054,
struct i2c_client *client)
{
struct device *dev = &gc1054->client->dev;
u8 pid = 0, ver = 0;
u16 id = 0;
int ret = 0;
/* Check sensor revision */
ret = gc1054_read_reg(client, GC1054_REG_CHIP_ID_H, &pid);
ret |= gc1054_read_reg(client, GC1054_REG_CHIP_ID_L, &ver);
if (ret) {
dev_err(&client->dev, "gc1054_read_reg failed (%d)\n", ret);
return ret;
}
id = SENSOR_ID(pid, ver);
if (id != GC1054_CHIP_ID) {
dev_err(&client->dev,
"Sensor detection failed (%04X,%d)\n",
id, ret);
return -ENODEV;
}
dev_info(dev, "Detected GC%04x sensor\n", id);
return 0;
}
static int gc1054_configure_regulators(struct gc1054 *gc1054)
{
u32 i;
for (i = 0; i < GC1054_NUM_SUPPLIES; i++)
gc1054->supplies[i].supply = gc1054_supply_names[i];
return devm_regulator_bulk_get(&gc1054->client->dev,
GC1054_NUM_SUPPLIES,
gc1054->supplies);
}
static int gc1054_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct gc1054 *gc1054;
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);
gc1054 = devm_kzalloc(dev, sizeof(*gc1054), GFP_KERNEL);
if (!gc1054)
return -ENOMEM;
gc1054->client = client;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&gc1054->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&gc1054->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&gc1054->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&gc1054->len_name);
if (ret) {
dev_err(dev,
"could not get module information!\n");
return -EINVAL;
}
gc1054->client = client;
gc1054->cur_mode = &supported_modes[0];
gc1054->xvclk = devm_clk_get(&client->dev, "xvclk");
if (IS_ERR(gc1054->xvclk)) {
dev_err(&client->dev, "Failed to get xvclk\n");
return -EINVAL;
}
gc1054->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gc1054->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
gc1054->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(gc1054->pwdn_gpio))
dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n");
ret = gc1054_configure_regulators(gc1054);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&gc1054->mutex);
sd = &gc1054->subdev;
v4l2_i2c_subdev_init(sd, client, &gc1054_subdev_ops);
ret = gc1054_initialize_controls(gc1054);
if (ret)
goto err_destroy_mutex;
ret = __gc1054_power_on(gc1054);
if (ret)
goto err_free_handler;
ret = gc1054_check_sensor_id(gc1054, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &gc1054_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
gc1054->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &gc1054->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(gc1054->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
gc1054->module_index, facing,
GC1054_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:
__gc1054_power_off(gc1054);
err_free_handler:
v4l2_ctrl_handler_free(&gc1054->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&gc1054->mutex);
return ret;
}
static int gc1054_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc1054 *gc1054 = to_gc1054(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&gc1054->ctrl_handler);
mutex_destroy(&gc1054->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__gc1054_power_off(gc1054);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc1054_of_match[] = {
{ .compatible = "galaxycore,gc1054" },
{},
};
MODULE_DEVICE_TABLE(of, gc1054_of_match);
#endif
static const struct i2c_device_id gc1054_match_id[] = {
{ "galaxycore,gc1054", 0 },
{ },
};
static struct i2c_driver gc1054_i2c_driver = {
.driver = {
.name = GC1054_NAME,
.pm = &gc1054_pm_ops,
.of_match_table = of_match_ptr(gc1054_of_match),
},
.probe = &gc1054_probe,
.remove = &gc1054_remove,
.id_table = gc1054_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&gc1054_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&gc1054_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("GC1054 CMOS Image Sensor driver");
MODULE_LICENSE("GPL v2");
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