// SPDX-License-Identifier: GPL-2.0
/*
* GC032A CMOS Image Sensor driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
* V0.0X01.0X01 init driver.
* V0.0X01.0X02 add quick stream on/off
* V0.0X01.0X03 set sensor in stream off state by default
* to avoid sending abnormal data in the early stage.
*/
#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 "gc032a"
#define GC032A_PIXEL_RATE (96 * 1000 * 1000)
//#define GC032A_AUTO_FPS
/*
* GC032A 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 GC032A_ID 0x232a
struct sensor_register {
u16 addr;
u8 value;
};
struct gc032a_framesize {
u16 width;
u16 height;
u16 max_exp_lines;
struct v4l2_fract max_fps;
const struct sensor_register *regs;
};
struct gc032a_pll_ctrl {
u8 ctrl1;
u8 ctrl2;
u8 ctrl3;
};
struct gc032a_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 gc032a_supply_names[] = {
"dovdd", /* Digital I/O power */
"avdd", /* Analog power */
"dvdd", /* Digital core power */
};
#define GC032A_NUM_SUPPLIES ARRAY_SIZE(gc032a_supply_names)
struct gc032a {
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[GC032A_NUM_SUPPLIES];
struct mutex lock;
struct i2c_client *client;
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *link_frequency;
const struct gc032a_framesize *frame_size;
int streaming;
bool power_on;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
static const struct sensor_register gc032a_vga_regs[] = {
/*System*/
{0xf3, 0x00},
{0xf5, 0x06},
{0xf7, 0x01},
{0xf8, 0x03},
{0xf9, 0xce},
{0xfa, 0x00},
{0xfc, 0x02},
{0xfe, 0x02},
{0x81, 0x03},
{0xfe, 0x00},
{0x77, 0x64},
{0x78, 0x40},
{0x79, 0x60},
/*ANALOG & CISCTL*/
{0xfe, 0x00},
{0x03, 0x01},
{0x04, 0xce},
{0x05, 0x01},
{0x06, 0xad},
{0x07, 0x00},
{0x08, 0x10},
{0x0a, 0x00},
{0x0c, 0x00},
{0x0d, 0x01},
{0x0e, 0xe8},
{0x0f, 0x02},
{0x10, 0x88},
{0x17, 0x54},
{0x19, 0x08},
{0x1a, 0x0a},
{0x1f, 0x40},
{0x20, 0x30},
{0x2e, 0x80},
{0x2f, 0x2b},
{0x30, 0x1a},
{0xfe, 0x02},
{0x03, 0x02},
{0x05, 0xd7},
{0x06, 0x60},
{0x08, 0x80},
{0x12, 0x89},
/*blk*/
{0xfe, 0x00},
{0x18, 0x02},
{0xfe, 0x02},
{0x40, 0x22},
{0x45, 0x00},
{0x46, 0x00},
{0x49, 0x20},
{0x4b, 0x3c},
{0x50, 0x20},
{0x42, 0x10},
/*isp*/
{0xfe, 0x01},
{0x0a, 0xc5},
{0x45, 0x00},
{0xfe, 0x00},
{0x40, 0xff},
{0x41, 0x25},
{0x42, 0xcf},
{0x43, 0x10},
{0x44, 0x83},//Output_format //80
{0x46, 0x22},//sync
{0x49, 0x03},
{0xfe, 0x02},
{0x22, 0xf6},
/*Shading*/
{0xfe, 0x00},
{0xfe, 0x01},
{0xc1, 0x38},
{0xc2, 0x4c},
{0xc3, 0x00},
{0xc4, 0x32},
{0xc5, 0x24},
{0xc6, 0x16},
{0xc7, 0x08},
{0xc8, 0x08},
{0xc9, 0x00},
{0xca, 0x20},
{0xdc, 0x8a},
{0xdd, 0xa0},
{0xde, 0xa6},
{0xdf, 0x75},
/*AWB*//*20170110*/
{0xfe, 0x01},
{0x90, 0x00},
{0x91, 0x00},
{0x92, 0xe3},
{0x93, 0xbe},
{0x95, 0x0b},
{0x96, 0xe3},
{0x97, 0x2e},
{0x98, 0x0b},
{0x9a, 0x2d},
{0x9b, 0x0b},
{0x9c, 0x59},
{0x9d, 0x2e},
{0x9f, 0x67},
{0xa0, 0x59},
{0xa1, 0x00},
{0xa2, 0x00},
{0x86, 0x00},
{0x87, 0x00},
{0x88, 0x00},
{0x89, 0x00},
{0xa4, 0x00},
{0xa5, 0x00},
{0xa6, 0xda},
{0xa7, 0x97},
{0xa9, 0xda},
{0xaa, 0x9a},
{0xab, 0xac},
{0xac, 0x86},
{0xae, 0xda},
{0xaf, 0xac},
{0xb0, 0xda},
{0xb1, 0xac},
{0xb3, 0xda},
{0xb4, 0xac},
{0xb5, 0x00},
{0xb6, 0x00},
{0x8b, 0x00},
{0x8c, 0x00},
{0x8d, 0x00},
{0x8e, 0x00},
{0x94, 0x50},
{0x99, 0xa6},
{0x9e, 0xaa},
{0xa3, 0x0a},
{0x8a, 0x00},
{0xa8, 0x50},
{0xad, 0x55},
{0xb2, 0x55},
{0xb7, 0x05},
{0x8f, 0x00},
{0xb8, 0xae},
{0xb9, 0xbb},
/*CC*/
{0xfe, 0x01},
{0xd0, 0x40},
{0xd1, 0xf8},
{0xd2, 0x00},
{0xd3, 0xfa},
{0xd4, 0x45},
{0xd5, 0x02},
{0xd6, 0x30},
{0xd7, 0xfa},
{0xd8, 0x08},
{0xd9, 0x08},
{0xda, 0x58},
{0xdb, 0x02},
{0xfe, 0x00},
/*Gamma*/
{0xfe, 0x00},
{0xba, 0x00},
{0xbb, 0x04},
{0xbc, 0x0a},
{0xbd, 0x0e},
{0xbe, 0x22},
{0xbf, 0x30},
{0xc0, 0x3d},
{0xc1, 0x4a},
{0xc2, 0x5d},
{0xc3, 0x6b},
{0xc4, 0x7a},
{0xc5, 0x85},
{0xc6, 0x90},
{0xc7, 0xa5},
{0xc8, 0xb5},
{0xc9, 0xc2},
{0xca, 0xcc},
{0xcb, 0xd5},
{0xcc, 0xde},
{0xcd, 0xea},
{0xce, 0xf5},
{0xcf, 0xff},
/*Auto Gamma*/
{0xfe, 0x00},
{0x5a, 0x08},
{0x5b, 0x0f},
{0x5c, 0x15},
{0x5d, 0x1c},
{0x5e, 0x28},
{0x5f, 0x36},
{0x60, 0x45},
{0x61, 0x51},
{0x62, 0x6a},
{0x63, 0x7d},
{0x64, 0x8d},
{0x65, 0x98},
{0x66, 0xa2},
{0x67, 0xb5},
{0x68, 0xc3},
{0x69, 0xcd},
{0x6a, 0xd4},
{0x6b, 0xdc},
{0x6c, 0xe3},
{0x6d, 0xf0},
{0x6e, 0xf9},
{0x6f, 0xff},
/*Gain*/
{0xfe, 0x00},
{0x70, 0x50},
/*AEC*/
{0xfe, 0x00},
{0x4f, 0x01},
{0xfe, 0x01},
{0x0d, 0x00},//08 add 20170110
{0x12, 0xa0},
{0x13, 0x3a},
{0x44, 0x04},
{0x1f, 0x30},
{0x20, 0x40},
{0x26, 0x9a},
{0x3e, 0x20},
{0x3f, 0x2d},
{0x40, 0x40},
{0x41, 0x5b},
{0x42, 0x82},
{0x43, 0xb7},
{0x04, 0x0a},
{0x02, 0x79},
{0x03, 0xc0},
/*measure window*/
{0xfe, 0x01},
{0xcc, 0x08},
{0xcd, 0x08},
{0xce, 0xa4},
{0xcf, 0xec},
/*DNDD*/
{0xfe, 0x00},
{0x81, 0xb8},
{0x82, 0x15},//de_noise
{0x83, 0x1a},//de_noise dark
{0x84, 0x01},
{0x86, 0x50},
{0x87, 0x18},
{0x88, 0x10},
{0x89, 0x70},
{0x8a, 0x20},
{0x8b, 0x10},
{0x8c, 0x08},
{0x8d, 0x0a},
/*Intpee*/
{0xfe, 0x00},
{0x8f, 0xaa},
{0x90, 0x9c},
{0x91, 0x52},
{0x92, 0x03},
{0x93, 0x03},
{0x94, 0x08},
{0x95, 0x65},//sharpness
{0x97, 0x00},
{0x98, 0x00},
/*ASDE*/
{0xfe, 0x00},
{0xa1, 0x30},
{0xa2, 0x41},
{0xa4, 0x30},
{0xa5, 0x20},
{0xaa, 0x30},
{0xac, 0x32},
/*YCP*/
{0xfe, 0x00},
{0xd1, 0x37},//3a
{0xd2, 0x37},//3a
{0xd3, 0x40},//38
{0xd6, 0xf4},
{0xd7, 0x1d},
{0xdd, 0x73},
{0xde, 0x84},
#ifdef GC032A_AUTO_FPS
/*Banding*/
/* 7fps */
{0xfe, 0x00},
{0x05, 0x01},
{0x06, 0xad},
{0x07, 0x00},
{0x08, 0x10},
{0xfe, 0x01},
{0x25, 0x00},
{0x26, 0x9a},
{0x27, 0x01},
{0x28, 0xce},
{0x29, 0x03},
{0x2a, 0x02},
{0x2b, 0x04},
{0x2c, 0x36},
{0x2d, 0x07},
{0x2e, 0xd2},
{0x2f, 0x0b},
{0x30, 0x6e},
{0x31, 0x0e},
{0x32, 0x70},
{0x33, 0x12},
{0x34, 0x0c},
{0x3c, 0x20},
#else
/*Banding*/
/* 30 fps */
{0xfe, 0x00},
{0x05, 0x01},
{0x06, 0xad},
{0x07, 0x00},
{0x08, 0x10},
{0xfe, 0x01},
{0x25, 0x00},
{0x26, 0x9a},
{0x27, 0x01},
{0x28, 0xce},
{0x29, 0x01},
{0x2a, 0xce},
{0x2b, 0x01},
{0x2c, 0xce},
{0x2d, 0x01},
{0x2e, 0xce},
{0x2f, 0x01},
{0x30, 0xce},
{0x31, 0x01},
{0x32, 0xce},
{0x33, 0x01},
{0x34, 0xce},
{0x3c, 0x00},
#endif
{0xfe, 0x00},
{REG_NULL, 0x00},
};
static const struct gc032a_framesize gc032a_framesizes[] = {
{ /* VGA */
.width = 640,
.height = 480,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.regs = gc032a_vga_regs,
.max_exp_lines = 488,
}
};
static const struct gc032a_pixfmt gc032a_formats[] = {
{
.code = MEDIA_BUS_FMT_YUYV8_2X8,
}
};
static inline struct gc032a *to_gc032a(struct v4l2_subdev *sd)
{
return container_of(sd, struct gc032a, sd);
}
/* sensor register write */
static int gc032a_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,
"gc032a write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
/* sensor register read */
static int gc032a_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,
"gc032a read reg:0x%x failed !\n", reg);
return ret;
}
static int gc032a_write_array(struct i2c_client *client,
const struct sensor_register *regs)
{
int i, ret = 0;
i = 0;
while (regs[i].addr != REG_NULL) {
ret = gc032a_write(client, regs[i].addr, regs[i].value);
if (ret) {
dev_err(&client->dev, "%s failed !\n", __func__);
break;
}
i++;
}
return ret;
}
static void gc032a_get_default_format(struct v4l2_mbus_framefmt *format)
{
format->width = gc032a_framesizes[0].width;
format->height = gc032a_framesizes[0].height;
format->colorspace = V4L2_COLORSPACE_SRGB;
format->code = gc032a_formats[0].code;
format->field = V4L2_FIELD_NONE;
}
static void gc032a_set_streaming(struct gc032a *gc032a, int on)
{
struct i2c_client *client = gc032a->client;
int ret;
dev_dbg(&client->dev, "%s: on: %d\n", __func__, on);
ret = gc032a_write(client, REG_SOFTWARE_STANDBY, on);
if (ret)
dev_err(&client->dev, "gc032a soft standby failed\n");
}
/*
* V4L2 subdev video and pad level operations
*/
static int gc032a_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(gc032a_formats))
return -EINVAL;
code->code = gc032a_formats[code->index].code;
return 0;
}
static int gc032a_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(gc032a_formats);
dev_dbg(&client->dev, "%s:\n", __func__);
if (fse->index >= ARRAY_SIZE(gc032a_framesizes))
return -EINVAL;
while (--i)
if (fse->code == gc032a_formats[i].code)
break;
fse->code = gc032a_formats[i].code;
fse->min_width = gc032a_framesizes[fse->index].width;
fse->max_width = fse->min_width;
fse->max_height = gc032a_framesizes[fse->index].height;
fse->min_height = fse->max_height;
return 0;
}
static int gc032a_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 gc032a *gc032a = to_gc032a(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(&gc032a->lock);
fmt->format = *mf;
mutex_unlock(&gc032a->lock);
return 0;
#else
return -ENOTTY;
#endif
}
mutex_lock(&gc032a->lock);
fmt->format = gc032a->format;
mutex_unlock(&gc032a->lock);
dev_dbg(&client->dev, "%s: %x %dx%d\n", __func__,
gc032a->format.code, gc032a->format.width,
gc032a->format.height);
return 0;
}
static void __gc032a_try_frame_size(struct v4l2_mbus_framefmt *mf,
const struct gc032a_framesize **size)
{
const struct gc032a_framesize *fsize = &gc032a_framesizes[0];
const struct gc032a_framesize *match = NULL;
int i = ARRAY_SIZE(gc032a_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 = &gc032a_framesizes[0];
mf->width = match->width;
mf->height = match->height;
if (size)
*size = match;
}
static int gc032a_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(gc032a_formats);
struct v4l2_mbus_framefmt *mf = &fmt->format;
const struct gc032a_framesize *size = NULL;
struct gc032a *gc032a = to_gc032a(sd);
int ret = 0;
dev_dbg(&client->dev, "%s enter\n", __func__);
__gc032a_try_frame_size(mf, &size);
while (--index >= 0)
if (gc032a_formats[index].code == mf->code)
break;
if (index < 0)
return -EINVAL;
mf->colorspace = V4L2_COLORSPACE_SRGB;
mf->code = gc032a_formats[index].code;
mf->field = V4L2_FIELD_NONE;
mutex_lock(&gc032a->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 (gc032a->streaming) {
mutex_unlock(&gc032a->lock);
return -EBUSY;
}
gc032a->frame_size = size;
gc032a->format = fmt->format;
}
mutex_unlock(&gc032a->lock);
return ret;
}
static void gc032a_get_module_inf(struct gc032a *gc032a,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, DRIVER_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, gc032a->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, gc032a->len_name, sizeof(inf->base.lens));
}
static long gc032a_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct gc032a *gc032a = to_gc032a(sd);
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
gc032a_get_module_inf(gc032a, (struct rkmodule_inf *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
gc032a_set_streaming(gc032a, 0xff);
else
gc032a_set_streaming(gc032a, 0x00);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long gc032a_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 = gc032a_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 = gc032a_ioctl(sd, cmd, cfg);
kfree(cfg);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = gc032a_ioctl(sd, cmd, &stream);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int gc032a_s_stream(struct v4l2_subdev *sd, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct gc032a *gc032a = to_gc032a(sd);
dev_info(&client->dev, "%s: on: %d\n", __func__, on);
mutex_lock(&gc032a->lock);
on = !!on;
if (gc032a->streaming == on)
goto unlock;
if (!on) {
/* Stop Streaming Sequence */
gc032a_set_streaming(gc032a, 0x00);
gc032a->streaming = on;
goto unlock;
}
gc032a_set_streaming(gc032a, 0xFF);
gc032a->streaming = on;
unlock:
mutex_unlock(&gc032a->lock);
return 0;
}
static int gc032a_set_test_pattern(struct gc032a *gc032a, int value)
{
return 0;
}
static int gc032a_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gc032a *gc032a =
container_of(ctrl->handler, struct gc032a, ctrls);
switch (ctrl->id) {
case V4L2_CID_TEST_PATTERN:
return gc032a_set_test_pattern(gc032a, ctrl->val);
}
return 0;
}
static const struct v4l2_ctrl_ops gc032a_ctrl_ops = {
.s_ctrl = gc032a_s_ctrl,
};
static const char * const gc032a_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bars",
};
/* -----------------------------------------------------------------------------
* V4L2 subdev internal operations
*/
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc032a_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__);
gc032a_get_default_format(format);
return 0;
}
#endif
static int gc032a_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 gc032a_power(struct v4l2_subdev *sd, int on)
{
int ret;
struct gc032a *gc032a = to_gc032a(sd);
struct i2c_client *client = gc032a->client;
dev_info(&client->dev, "%s(%d) on(%d)\n", __func__, __LINE__, on);
if (on) {
if (!IS_ERR(gc032a->pwdn_gpio)) {
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
ret = gc032a_write_array(client, gc032a->frame_size->regs);
if (ret)
dev_err(&client->dev, "init error\n");
gc032a->power_on = true;
} else {
if (!IS_ERR(gc032a->pwdn_gpio)) {
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1);
usleep_range(2000, 5000);
}
gc032a->power_on = false;
}
return 0;
}
static int gc032a_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(gc032a_framesizes))
return -EINVAL;
if (fie->code != MEDIA_BUS_FMT_YUYV8_2X8)
return -EINVAL;
fie->width = gc032a_framesizes[fie->index].width;
fie->height = gc032a_framesizes[fie->index].height;
fie->interval = gc032a_framesizes[fie->index].max_fps;
return 0;
}
static const struct v4l2_subdev_core_ops gc032a_subdev_core_ops = {
.log_status = v4l2_ctrl_subdev_log_status,
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
.ioctl = gc032a_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = gc032a_compat_ioctl32,
#endif
.s_power = gc032a_power,
};
static const struct v4l2_subdev_video_ops gc032a_subdev_video_ops = {
.s_stream = gc032a_s_stream,
.g_mbus_config = gc032a_g_mbus_config,
};
static const struct v4l2_subdev_pad_ops gc032a_subdev_pad_ops = {
.enum_mbus_code = gc032a_enum_mbus_code,
.enum_frame_size = gc032a_enum_frame_sizes,
.enum_frame_interval = gc032a_enum_frame_interval,
.get_fmt = gc032a_get_fmt,
.set_fmt = gc032a_set_fmt,
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_ops gc032a_subdev_ops = {
.core = &gc032a_subdev_core_ops,
.video = &gc032a_subdev_video_ops,
.pad = &gc032a_subdev_pad_ops,
};
static const struct v4l2_subdev_internal_ops gc032a_subdev_internal_ops = {
.open = gc032a_open,
};
#endif
static int gc032a_detect(struct gc032a *gc032a)
{
struct i2c_client *client = gc032a->client;
u8 pid, ver;
int ret;
dev_dbg(&client->dev, "%s:\n", __func__);
/* Check sensor revision */
ret = gc032a_read(client, REG_SC_CHIP_ID_H, &pid);
if (!ret)
ret = gc032a_read(client, REG_SC_CHIP_ID_L, &ver);
if (!ret) {
unsigned short id;
id = SENSOR_ID(pid, ver);
if (id != GC032A_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(gc032a->pwdn_gpio))
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1);
}
}
return ret;
}
static int __gc032a_power_on(struct gc032a *gc032a)
{
int ret;
struct device *dev = &gc032a->client->dev;
if (!IS_ERR(gc032a->xvclk)) {
ret = clk_set_rate(gc032a->xvclk, 24000000);
if (ret < 0)
dev_info(dev, "Failed to set xvclk rate (24MHz)\n");
}
if (!IS_ERR(gc032a->pwdn_gpio)) {
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc032a->supplies)) {
ret = regulator_bulk_enable(GC032A_NUM_SUPPLIES,
gc032a->supplies);
if (ret < 0)
dev_info(dev, "Failed to enable regulators\n");
usleep_range(2000, 5000);
}
if (!IS_ERR(gc032a->pwdn_gpio)) {
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc032a->xvclk)) {
ret = clk_prepare_enable(gc032a->xvclk);
if (ret < 0)
dev_info(dev, "Failed to enable xvclk\n");
}
usleep_range(7000, 10000);
gc032a->power_on = true;
return 0;
}
static void __gc032a_power_off(struct gc032a *gc032a)
{
if (!IS_ERR(gc032a->xvclk))
clk_disable_unprepare(gc032a->xvclk);
if (!IS_ERR(gc032a->supplies))
regulator_bulk_disable(GC032A_NUM_SUPPLIES, gc032a->supplies);
if (!IS_ERR(gc032a->pwdn_gpio))
gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1);
gc032a->power_on = false;
}
static int gc032a_configure_regulators(struct gc032a *gc032a)
{
unsigned int i;
for (i = 0; i < GC032A_NUM_SUPPLIES; i++)
gc032a->supplies[i].supply = gc032a_supply_names[i];
return devm_regulator_bulk_get(&gc032a->client->dev,
GC032A_NUM_SUPPLIES,
gc032a->supplies);
}
static int gc032a_parse_of(struct gc032a *gc032a)
{
struct device *dev = &gc032a->client->dev;
int ret;
gc032a->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(gc032a->pwdn_gpio))
dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n");
ret = gc032a_configure_regulators(gc032a);
if (ret)
dev_info(dev, "Failed to get power regulators\n");
return __gc032a_power_on(gc032a);
}
static int gc032a_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 gc032a *gc032a;
char facing[2];
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
gc032a = devm_kzalloc(&client->dev, sizeof(*gc032a), GFP_KERNEL);
if (!gc032a)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&gc032a->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&gc032a->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&gc032a->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&gc032a->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
gc032a->client = client;
gc032a->xvclk = devm_clk_get(&client->dev, "xvclk");
if (IS_ERR(gc032a->xvclk)) {
dev_err(&client->dev, "Failed to get xvclk\n");
return -EINVAL;
}
gc032a_parse_of(gc032a);
gc032a->xvclk_frequency = clk_get_rate(gc032a->xvclk);
if (gc032a->xvclk_frequency < 6000000 ||
gc032a->xvclk_frequency > 27000000)
return -EINVAL;
v4l2_ctrl_handler_init(&gc032a->ctrls, 2);
gc032a->link_frequency =
v4l2_ctrl_new_std(&gc032a->ctrls, &gc032a_ctrl_ops,
V4L2_CID_PIXEL_RATE, 0,
GC032A_PIXEL_RATE, 1,
GC032A_PIXEL_RATE);
v4l2_ctrl_new_std_menu_items(&gc032a->ctrls, &gc032a_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(gc032a_test_pattern_menu) - 1,
0, 0, gc032a_test_pattern_menu);
gc032a->sd.ctrl_handler = &gc032a->ctrls;
if (gc032a->ctrls.error) {
dev_err(&client->dev, "%s: control initialization error %d\n",
__func__, gc032a->ctrls.error);
return gc032a->ctrls.error;
}
sd = &gc032a->sd;
client->flags |= I2C_CLIENT_SCCB;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
v4l2_i2c_subdev_init(sd, client, &gc032a_subdev_ops);
sd->internal_ops = &gc032a_subdev_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
gc032a->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &gc032a->pad);
if (ret < 0) {
v4l2_ctrl_handler_free(&gc032a->ctrls);
return ret;
}
#endif
mutex_init(&gc032a->lock);
gc032a_get_default_format(&gc032a->format);
gc032a->frame_size = &gc032a_framesizes[0];
ret = gc032a_detect(gc032a);
if (ret < 0)
goto error;
memset(facing, 0, sizeof(facing));
if (strcmp(gc032a->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
gc032a->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);
gc032a->power_on = false;
return 0;
error:
v4l2_ctrl_handler_free(&gc032a->ctrls);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&gc032a->lock);
__gc032a_power_off(gc032a);
return ret;
}
static int gc032a_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc032a *gc032a = to_gc032a(sd);
v4l2_ctrl_handler_free(&gc032a->ctrls);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&gc032a->lock);
__gc032a_power_off(gc032a);
return 0;
}
static const struct i2c_device_id gc032a_id[] = {
{ "gc032a", 0 },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(i2c, gc032a_id);
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc032a_of_match[] = {
{ .compatible = "galaxycore,gc032a", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, gc032a_of_match);
#endif
static struct i2c_driver gc032a_i2c_driver = {
.driver = {
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(gc032a_of_match),
},
.probe = gc032a_probe,
.remove = gc032a_remove,
.id_table = gc032a_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&gc032a_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&gc032a_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_AUTHOR("randy.wang <randy.wang@rock-chips.com>");
MODULE_DESCRIPTION("GC032A 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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