// SPDX-License-Identifier: GPL-2.0
/*
* GC0312 CMOS Image Sensor driver
*
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
* V0.0X01.0X01 add enum_frame_interval function.
* V0.0X01.0X02 add quick stream on/off
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/media.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/videodev2.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <media/media-entity.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-image-sizes.h>
#include <media/v4l2-mediabus.h>
#include <media/v4l2-subdev.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x2)
#define DRIVER_NAME "gc0312"
#define GC0312_PIXEL_RATE (96 * 1000 * 1000)
/*
* GC0312 register definitions
*/
#define REG_SOFTWARE_STANDBY 0xf3
#define REG_SC_CHIP_ID_H 0xf0
#define REG_SC_CHIP_ID_L 0xf1
#define REG_NULL 0xFFFF /* Array end token */
#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb))
#define GC0312_ID 0xb310
struct sensor_register {
u16 addr;
u8 value;
};
struct gc0312_framesize {
u16 width;
u16 height;
u16 max_exp_lines;
struct v4l2_fract max_fps;
const struct sensor_register *regs;
};
struct gc0312_pll_ctrl {
u8 ctrl1;
u8 ctrl2;
u8 ctrl3;
};
struct gc0312_pixfmt {
u32 code;
/* Output format Register Value (REG_FORMAT_CTRL00) */
struct sensor_register *format_ctrl_regs;
};
struct pll_ctrl_reg {
unsigned int div;
unsigned char reg;
};
static const char * const gc0312_supply_names[] = {
"dovdd", /* Digital I/O power */
"avdd", /* Analog power */
"dvdd", /* Digital core power */
};
#define GC0312_NUM_SUPPLIES ARRAY_SIZE(gc0312_supply_names)
struct gc0312 {
struct v4l2_subdev sd;
struct media_pad pad;
struct v4l2_mbus_framefmt format;
unsigned int xvclk_frequency;
struct clk *xvclk;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[GC0312_NUM_SUPPLIES];
struct mutex lock;
struct i2c_client *client;
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *link_frequency;
const struct gc0312_framesize *frame_size;
int streaming;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
static const struct sensor_register gc0312_vga_regs[] = {
{0xfe, 0xf0},
{0xfe, 0xf0},
{0xfe, 0x00},
{0xfc, 0x0e},
{0xfc, 0x0e},
{0xf2, 0x07},
/*output_disable*/
{0xf3, 0x00},
{0xf7, 0x1b},
{0xf8, 0x04},
{0xf9, 0x0e},
{0xfa, 0x11},
/*CISCTL reg*/
{0x00, 0x2f},
{0x01, 0x0f},
{0x02, 0x04},
{0x03, 0x03},
{0x04, 0x50},
{0x09, 0x00},
{0x0a, 0x00},
{0x0b, 0x00},
{0x0c, 0x04},
{0x0d, 0x01},
{0x0e, 0xe8},
{0x0f, 0x02},
{0x10, 0x88},
{0x16, 0x00},
{0x17, 0x17},
{0x18, 0x1a},
{0x19, 0x14},
{0x1b, 0x48},
/*1c travis 20140929 update for lag*/
{0x1c, 0x1c},
{0x1e, 0x6b},
{0x1f, 0x28},
/*0x89 travis20140801*/
{0x20, 0x8b},
{0x21, 0x49},
/*b0 travis 20140929 update for lag*/
{0x22, 0xb0},
{0x23, 0x04},
{0x24, 0x16},
{0x34, 0x20},
/*BLK*/
{0x26, 0x23},
{0x28, 0xff},
{0x29, 0x00},
{0x32, 0x00},
{0x33, 0x10},
{0x37, 0x20},
{0x38, 0x10},
{0x47, 0x80},
{0x4e, 0x66},
{0xa8, 0x02},
{0xa9, 0x80},
/*ISP reg*/
{0x40, 0xff},
{0x41, 0x21},
{0x42, 0xcf},
{0x44, 0x02},
{0x45, 0xa8},
/*sync 02*/
{0x46, 0x02},
{0x4a, 0x11},
{0x4b, 0x01},
{0x4c, 0x20},
{0x4d, 0x05},
{0x4f, 0x01},
{0x50, 0x01},
{0x54, 0x04},
{0x55, 0x01},
{0x56, 0xe0},
{0x57, 0x02},
{0x58, 0x80},
/*GAIN*/
{0x70, 0x70},
{0x5a, 0x84},
{0x5b, 0xc9},
{0x5c, 0xed},
{0x77, 0x74},
{0x78, 0x40},
{0x79, 0x5f},
/*DNDD*/
{0x82, 0x14},
{0x83, 0x0b},
{0x89, 0xf0},
/*EEINTP*/
{0x8f, 0xaa},
{0x90, 0x8c},
{0x91, 0x90},
{0x92, 0x03},
{0x93, 0x03},
{0x94, 0x05},
{0x95, 0x65},
{0x96, 0xf0},
/*ASDE*/
{0xfe, 0x00},
{0x9a, 0x20},
{0x9b, 0x80},
{0x9c, 0x40},
{0x9d, 0x80},
{0xa1, 0x30},
{0xa2, 0x32},
{0xa4, 0x80},
{0xa5, 0x28},
{0xaa, 0x30},
{0xac, 0x22},
/*GAMMA*/
{0xfe, 0x00},
{0xbf, 0x08},
{0xc0, 0x16},
{0xc1, 0x28},
{0xc2, 0x41},
{0xc3, 0x5a},
{0xc4, 0x6c},
{0xc5, 0x7a},
{0xc6, 0x96},
{0xc7, 0xac},
{0xc8, 0xbc},
{0xc9, 0xc9},
{0xca, 0xd3},
{0xcb, 0xdd},
{0xcc, 0xe5},
{0xcd, 0xf1},
{0xce, 0xfa},
{0xcf, 0xff},
/*YCP*/
{0xd0, 0x40},
{0xd1, 0x34},
{0xd2, 0x34},
{0xd3, 0x40},
{0xd6, 0xf2},
{0xd7, 0x1b},
{0xd8, 0x18},
{0xdd, 0x03},
/*AEC*/
{0xfe, 0x01},
{0x05, 0x30},
{0x06, 0x75},
{0x07, 0x40},
{0x08, 0xb0},
{0x0a, 0xc5},
{0x0b, 0x11},
{0x0c, 0x00},
{0x12, 0x52},
{0x13, 0x38},
{0x18, 0x95},
{0x19, 0x96},
{0x1f, 0x20},
{0x20, 0xc0},
{0x3e, 0x40},
{0x3f, 0x57},
{0x40, 0x7d},
{0x03, 0x60},
{0x44, 0x02},
/*AWB*/
{0xfe, 0x01},
{0x1c, 0x91},
{0x21, 0x15},
{0x50, 0x80},
{0x56, 0x04},
{0x59, 0x08},
{0x5b, 0x02},
{0x61, 0x8d},
{0x62, 0xa7},
{0x63, 0xd0},
{0x65, 0x06},
{0x66, 0x06},
{0x67, 0x84},
{0x69, 0x08},
{0x6a, 0x25},
{0x6b, 0x01},
{0x6c, 0x00},
{0x6d, 0x02},
{0x6e, 0xf0},
{0x6f, 0x80},
{0x76, 0x80},
{0x78, 0xaf},
{0x79, 0x75},
{0x7a, 0x40},
{0x7b, 0x50},
{0x7c, 0x0c},
{0x90, 0xc9},
{0x91, 0xbe},
{0x92, 0xe2},
{0x93, 0xc9},
{0x95, 0x1b},
{0x96, 0xe2},
{0x97, 0x49},
{0x98, 0x1b},
{0x9a, 0x49},
{0x9b, 0x1b},
{0x9c, 0xc3},
{0x9d, 0x49},
{0x9f, 0xc7},
{0xa0, 0xc8},
{0xa1, 0x00},
{0xa2, 0x00},
{0x86, 0x00},
{0x87, 0x00},
{0x88, 0x00},
{0x89, 0x00},
{0xa4, 0xb9},
{0xa5, 0xa0},
{0xa6, 0xba},
{0xa7, 0x92},
{0xa9, 0xba},
{0xaa, 0x80},
{0xab, 0x9d},
{0xac, 0x7f},
{0xae, 0xbb},
{0xaf, 0x9d},
{0xb0, 0xc8},
{0xb1, 0x97},
{0xb3, 0xb7},
{0xb4, 0x7f},
{0xb5, 0x00},
{0xb6, 0x00},
{0x8b, 0x00},
{0x8c, 0x00},
{0x8d, 0x00},
{0x8e, 0x00},
{0x94, 0x55},
{0x99, 0xa6},
{0x9e, 0xaa},
{0xa3, 0x0a},
{0x8a, 0x00},
{0xa8, 0x55},
{0xad, 0x55},
{0xb2, 0x55},
{0xb7, 0x05},
{0x8f, 0x00},
{0xb8, 0xcb},
{0xb9, 0x9b},
/*CC*/
{0xfe, 0x01},
/*skin white*/
{0xd0, 0x38},
{0xd1, 0x00},
{0xd2, 0x02},
{0xd3, 0x04},
{0xd4, 0x38},
{0xd5, 0x12},
{0xd6, 0x30},
{0xd7, 0x00},
{0xd8, 0x0a},
{0xd9, 0x16},
{0xda, 0x39},
{0xdb, 0xf8},
/*LSC*/
{0xfe, 0x01},
{0xc1, 0x3c},
{0xc2, 0x50},
{0xc3, 0x00},
{0xc4, 0x40},
{0xc5, 0x30},
{0xc6, 0x30},
{0xc7, 0x10},
{0xc8, 0x00},
{0xc9, 0x00},
{0xdc, 0x20},
{0xdd, 0x10},
{0xdf, 0x00},
{0xde, 0x00},
/*Histogram*/
{0x01, 0x10},
{0x0b, 0x31},
{0x0e, 0x50},
{0x0f, 0x0f},
{0x10, 0x6e},
{0x12, 0xa0},
{0x15, 0x60},
{0x16, 0x60},
{0x17, 0xe0},
/*Measure Window*/
{0xcc, 0x0c},
{0xcd, 0x10},
{0xce, 0xa0},
{0xcf, 0xe6},
/*dark sun*/
{0x45, 0xf7},
{0x46, 0xff},
{0x47, 0x15},
{0x48, 0x03},
{0x4f, 0x60},
/*banding*/
{0xfe, 0x00},
{0x05, 0x00},
/*HB*/
{0x06, 0x90},
{0x07, 0x00},
/*VB*/
{0x08, 0x64},
{0xfe, 0x01},
/*anti-flicker step [11:8]*/
{0x25, 0x00},
/*anti-flicker step [7:0]*/
{0x26, 0xb3},
/*exp level 0 */
{0x27, 0x02},
{0x28, 0x19},
/*exp level 1 */
{0x29, 0x02},
{0x2a, 0x19},
/*7.14fps*/
{0x2b, 0x02},
{0x2c, 0x19},
/*exp level 3 */
{0x2d, 0x02},
{0x2e, 0x19},
{0x3c, 0x20},
{0xfe, 0x00},
/*DVP*/
{0xfe, 0x03},
{0x01, 0x00},
{0x02, 0x00},
{0x10, 0x00},
{0x15, 0x00},
{0xfe, 0x00},
{REG_NULL, 0x00},
};
static const struct gc0312_framesize gc0312_framesizes[] = {
{ /* VGA */
.width = 640,
.height = 480,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.regs = gc0312_vga_regs,
.max_exp_lines = 488,
}
};
static const struct gc0312_pixfmt gc0312_formats[] = {
{
.code = MEDIA_BUS_FMT_YUYV8_2X8,
}
};
static inline struct gc0312 *to_gc0312(struct v4l2_subdev *sd)
{
return container_of(sd, struct gc0312, sd);
}
/* sensor register write */
static int gc0312_write(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,
"gc0312 write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
/* sensor register read */
static int gc0312_read(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,
"gc0312 read reg:0x%x failed !\n", reg);
return ret;
}
static int gc0312_write_array(struct i2c_client *client,
const struct sensor_register *regs)
{
int i, ret = 0;
i = 0;
while (regs[i].addr != REG_NULL) {
ret = gc0312_write(client, regs[i].addr, regs[i].value);
if (ret) {
dev_err(&client->dev, "%s failed !\n", __func__);
break;
}
i++;
}
return ret;
}
static void gc0312_get_default_format(struct v4l2_mbus_framefmt *format)
{
format->width = gc0312_framesizes[0].width;
format->height = gc0312_framesizes[0].height;
format->colorspace = V4L2_COLORSPACE_SRGB;
format->code = gc0312_formats[0].code;
format->field = V4L2_FIELD_NONE;
}
static void gc0312_set_streaming(struct gc0312 *gc0312, int on)
{
struct i2c_client *client = gc0312->client;
int ret;
dev_dbg(&client->dev, "%s: on: %d\n", __func__, on);
ret = gc0312_write(client, REG_SOFTWARE_STANDBY, on);
if (ret)
dev_err(&client->dev, "gc0312 soft standby failed\n");
}
/*
* V4L2 subdev video and pad level operations
*/
static int gc0312_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
dev_dbg(&client->dev, "%s:\n", __func__);
if (code->index >= ARRAY_SIZE(gc0312_formats))
return -EINVAL;
code->code = gc0312_formats[code->index].code;
return 0;
}
static int gc0312_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int i = ARRAY_SIZE(gc0312_formats);
dev_dbg(&client->dev, "%s:\n", __func__);
if (fse->index >= ARRAY_SIZE(gc0312_framesizes))
return -EINVAL;
while (--i)
if (fse->code == gc0312_formats[i].code)
break;
fse->code = gc0312_formats[i].code;
fse->min_width = gc0312_framesizes[fse->index].width;
fse->max_width = fse->min_width;
fse->max_height = gc0312_framesizes[fse->index].height;
fse->min_height = fse->max_height;
return 0;
}
static int gc0312_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct gc0312 *gc0312 = to_gc0312(sd);
dev_dbg(&client->dev, "%s enter\n", __func__);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
struct v4l2_mbus_framefmt *mf;
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
mutex_lock(&gc0312->lock);
fmt->format = *mf;
mutex_unlock(&gc0312->lock);
return 0;
#else
return -ENOTTY;
#endif
}
mutex_lock(&gc0312->lock);
fmt->format = gc0312->format;
mutex_unlock(&gc0312->lock);
dev_dbg(&client->dev, "%s: %x %dx%d\n", __func__,
gc0312->format.code, gc0312->format.width,
gc0312->format.height);
return 0;
}
static void __gc0312_try_frame_size(struct v4l2_mbus_framefmt *mf,
const struct gc0312_framesize **size)
{
const struct gc0312_framesize *fsize = &gc0312_framesizes[0];
const struct gc0312_framesize *match = NULL;
int i = ARRAY_SIZE(gc0312_framesizes);
unsigned int min_err = UINT_MAX;
while (i--) {
unsigned int err = abs(fsize->width - mf->width)
+ abs(fsize->height - mf->height);
if (err < min_err && fsize->regs[0].addr) {
min_err = err;
match = fsize;
}
fsize++;
}
if (!match)
match = &gc0312_framesizes[0];
mf->width = match->width;
mf->height = match->height;
if (size)
*size = match;
}
static int gc0312_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int index = ARRAY_SIZE(gc0312_formats);
struct v4l2_mbus_framefmt *mf = &fmt->format;
const struct gc0312_framesize *size = NULL;
struct gc0312 *gc0312 = to_gc0312(sd);
int ret = 0;
dev_dbg(&client->dev, "%s enter\n", __func__);
__gc0312_try_frame_size(mf, &size);
while (--index >= 0)
if (gc0312_formats[index].code == mf->code)
break;
if (index < 0)
return -EINVAL;
mf->colorspace = V4L2_COLORSPACE_SRGB;
mf->code = gc0312_formats[index].code;
mf->field = V4L2_FIELD_NONE;
mutex_lock(&gc0312->lock);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
*mf = fmt->format;
#else
return -ENOTTY;
#endif
} else {
if (gc0312->streaming) {
mutex_unlock(&gc0312->lock);
return -EBUSY;
}
gc0312->frame_size = size;
gc0312->format = fmt->format;
}
mutex_unlock(&gc0312->lock);
return ret;
}
static void gc0312_get_module_inf(struct gc0312 *gc0312,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, DRIVER_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, gc0312->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, gc0312->len_name, sizeof(inf->base.lens));
}
static long gc0312_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct gc0312 *gc0312 = to_gc0312(sd);
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
gc0312_get_module_inf(gc0312, (struct rkmodule_inf *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
gc0312_set_streaming(gc0312, 0xff);
else
gc0312_set_streaming(gc0312, 0x00);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long gc0312_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;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = gc0312_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 = gc0312_ioctl(sd, cmd, cfg);
kfree(cfg);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = gc0312_ioctl(sd, cmd, &stream);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int gc0312_s_stream(struct v4l2_subdev *sd, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct gc0312 *gc0312 = to_gc0312(sd);
int ret = 0;
dev_dbg(&client->dev, "%s: on: %d\n", __func__, on);
mutex_lock(&gc0312->lock);
on = !!on;
if (gc0312->streaming == on)
goto unlock;
if (!on) {
/* Stop Streaming Sequence */
gc0312_set_streaming(gc0312, 0x00);
gc0312->streaming = on;
if (!IS_ERR(gc0312->pwdn_gpio)) {
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 1);
usleep_range(2000, 5000);
}
goto unlock;
}
if (!IS_ERR(gc0312->pwdn_gpio)) {
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
ret = gc0312_write_array(client, gc0312->frame_size->regs);
if (ret)
goto unlock;
gc0312_set_streaming(gc0312, 0xFF);
gc0312->streaming = on;
unlock:
mutex_unlock(&gc0312->lock);
return ret;
}
static int gc0312_set_test_pattern(struct gc0312 *gc0312, int value)
{
return 0;
}
static int gc0312_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gc0312 *gc0312 =
container_of(ctrl->handler, struct gc0312, ctrls);
switch (ctrl->id) {
case V4L2_CID_TEST_PATTERN:
return gc0312_set_test_pattern(gc0312, ctrl->val);
}
return 0;
}
static const struct v4l2_ctrl_ops gc0312_ctrl_ops = {
.s_ctrl = gc0312_s_ctrl,
};
static const char * const gc0312_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bars",
};
/* -----------------------------------------------------------------------------
* V4L2 subdev internal operations
*/
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc0312_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
dev_dbg(&client->dev, "%s:\n", __func__);
gc0312_get_default_format(format);
return 0;
}
#endif
static int gc0312_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 gc0312_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(gc0312_framesizes))
return -EINVAL;
if (fie->code != MEDIA_BUS_FMT_YUYV8_2X8)
return -EINVAL;
fie->width = gc0312_framesizes[fie->index].width;
fie->height = gc0312_framesizes[fie->index].height;
fie->interval = gc0312_framesizes[fie->index].max_fps;
return 0;
}
static const struct v4l2_subdev_core_ops gc0312_subdev_core_ops = {
.log_status = v4l2_ctrl_subdev_log_status,
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
.ioctl = gc0312_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = gc0312_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops gc0312_subdev_video_ops = {
.s_stream = gc0312_s_stream,
.g_mbus_config = gc0312_g_mbus_config,
};
static const struct v4l2_subdev_pad_ops gc0312_subdev_pad_ops = {
.enum_mbus_code = gc0312_enum_mbus_code,
.enum_frame_size = gc0312_enum_frame_sizes,
.enum_frame_interval = gc0312_enum_frame_interval,
.get_fmt = gc0312_get_fmt,
.set_fmt = gc0312_set_fmt,
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_ops gc0312_subdev_ops = {
.core = &gc0312_subdev_core_ops,
.video = &gc0312_subdev_video_ops,
.pad = &gc0312_subdev_pad_ops,
};
static const struct v4l2_subdev_internal_ops gc0312_subdev_internal_ops = {
.open = gc0312_open,
};
#endif
static int gc0312_detect(struct gc0312 *gc0312)
{
struct i2c_client *client = gc0312->client;
u8 pid, ver;
int ret;
dev_dbg(&client->dev, "%s:\n", __func__);
/* Check sensor revision */
ret = gc0312_read(client, REG_SC_CHIP_ID_H, &pid);
if (!ret)
ret = gc0312_read(client, REG_SC_CHIP_ID_L, &ver);
if (!ret) {
unsigned short id;
id = SENSOR_ID(pid, ver);
if (id != GC0312_ID) {
ret = -1;
dev_err(&client->dev,
"Sensor detection failed (%04X, %d)\n",
id, ret);
} else {
dev_info(&client->dev, "Found GC%04X sensor\n", id);
if (!IS_ERR(gc0312->pwdn_gpio))
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 1);
}
}
return ret;
}
static int __gc0312_power_on(struct gc0312 *gc0312)
{
int ret;
struct device *dev = &gc0312->client->dev;
if (!IS_ERR(gc0312->xvclk)) {
ret = clk_set_rate(gc0312->xvclk, 24000000);
if (ret < 0)
dev_info(dev, "Failed to set xvclk rate (24MHz)\n");
}
if (!IS_ERR(gc0312->pwdn_gpio)) {
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 1);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc0312->supplies)) {
ret = regulator_bulk_enable(GC0312_NUM_SUPPLIES,
gc0312->supplies);
if (ret < 0)
dev_info(dev, "Failed to enable regulators\n");
usleep_range(2000, 5000);
}
if (!IS_ERR(gc0312->pwdn_gpio)) {
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc0312->xvclk)) {
ret = clk_prepare_enable(gc0312->xvclk);
if (ret < 0)
dev_info(dev, "Failed to enable xvclk\n");
}
usleep_range(7000, 10000);
return 0;
}
static void __gc0312_power_off(struct gc0312 *gc0312)
{
if (!IS_ERR(gc0312->xvclk))
clk_disable_unprepare(gc0312->xvclk);
if (!IS_ERR(gc0312->supplies))
regulator_bulk_disable(GC0312_NUM_SUPPLIES, gc0312->supplies);
if (!IS_ERR(gc0312->pwdn_gpio))
gpiod_set_value_cansleep(gc0312->pwdn_gpio, 1);
}
static int gc0312_configure_regulators(struct gc0312 *gc0312)
{
unsigned int i;
for (i = 0; i < GC0312_NUM_SUPPLIES; i++)
gc0312->supplies[i].supply = gc0312_supply_names[i];
return devm_regulator_bulk_get(&gc0312->client->dev,
GC0312_NUM_SUPPLIES,
gc0312->supplies);
}
static int gc0312_parse_of(struct gc0312 *gc0312)
{
struct device *dev = &gc0312->client->dev;
int ret;
gc0312->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(gc0312->pwdn_gpio))
dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n");
ret = gc0312_configure_regulators(gc0312);
if (ret)
dev_info(dev, "Failed to get power regulators\n");
return __gc0312_power_on(gc0312);
}
static int gc0312_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct v4l2_subdev *sd;
struct gc0312 *gc0312;
char facing[2];
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
gc0312 = devm_kzalloc(&client->dev, sizeof(*gc0312), GFP_KERNEL);
if (!gc0312)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&gc0312->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&gc0312->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&gc0312->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&gc0312->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
gc0312->client = client;
gc0312->xvclk = devm_clk_get(&client->dev, "xvclk");
if (IS_ERR(gc0312->xvclk)) {
dev_err(&client->dev, "Failed to get xvclk\n");
return -EINVAL;
}
gc0312_parse_of(gc0312);
gc0312->xvclk_frequency = clk_get_rate(gc0312->xvclk);
if (gc0312->xvclk_frequency < 6000000 ||
gc0312->xvclk_frequency > 27000000)
return -EINVAL;
v4l2_ctrl_handler_init(&gc0312->ctrls, 2);
gc0312->link_frequency =
v4l2_ctrl_new_std(&gc0312->ctrls, &gc0312_ctrl_ops,
V4L2_CID_PIXEL_RATE, 0,
GC0312_PIXEL_RATE, 1,
GC0312_PIXEL_RATE);
v4l2_ctrl_new_std_menu_items(&gc0312->ctrls, &gc0312_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(gc0312_test_pattern_menu) - 1,
0, 0, gc0312_test_pattern_menu);
gc0312->sd.ctrl_handler = &gc0312->ctrls;
if (gc0312->ctrls.error) {
dev_err(&client->dev, "%s: control initialization error %d\n",
__func__, gc0312->ctrls.error);
return gc0312->ctrls.error;
}
sd = &gc0312->sd;
client->flags |= I2C_CLIENT_SCCB;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
v4l2_i2c_subdev_init(sd, client, &gc0312_subdev_ops);
sd->internal_ops = &gc0312_subdev_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
gc0312->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &gc0312->pad);
if (ret < 0) {
v4l2_ctrl_handler_free(&gc0312->ctrls);
return ret;
}
#endif
mutex_init(&gc0312->lock);
gc0312_get_default_format(&gc0312->format);
gc0312->frame_size = &gc0312_framesizes[0];
ret = gc0312_detect(gc0312);
if (ret < 0)
goto error;
memset(facing, 0, sizeof(facing));
if (strcmp(gc0312->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
gc0312->module_index, facing,
DRIVER_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev_sensor_common(sd);
if (ret)
goto error;
dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name);
return 0;
error:
v4l2_ctrl_handler_free(&gc0312->ctrls);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&gc0312->lock);
__gc0312_power_off(gc0312);
return ret;
}
static int gc0312_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc0312 *gc0312 = to_gc0312(sd);
v4l2_ctrl_handler_free(&gc0312->ctrls);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&gc0312->lock);
__gc0312_power_off(gc0312);
return 0;
}
static const struct i2c_device_id gc0312_id[] = {
{ "gc0312", 0 },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(i2c, gc0312_id);
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc0312_of_match[] = {
{ .compatible = "galaxycore,gc0312", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, gc0312_of_match);
#endif
static struct i2c_driver gc0312_i2c_driver = {
.driver = {
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(gc0312_of_match),
},
.probe = gc0312_probe,
.remove = gc0312_remove,
.id_table = gc0312_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&gc0312_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&gc0312_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>");
MODULE_DESCRIPTION("GC0312 CMOS Image Sensor driver");
MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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