// SPDX-License-Identifier: GPL-2.0
/*
* gc2155 driver
*
* Copyright (C) 2018 Fuzhou Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X01 add poweron function.
* V0.0X01.0X02 fix mclk issue when probe multiple camera.
* V0.0X01.0X03 add enum_frame_interval function.
* V0.0X01.0X04 add exposure control and fix v4l2_ctrl init issues.
*/
#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/of.h>
#include <linux/of_graph.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/pinctrl/consumer.h>
#include <linux/version.h>
#include <media/v4l2-async.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>
#include <linux/rk-camera-module.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x04)
#define GC2155_PIXEL_RATE (120 * 1000 * 1000)
#define GC2155_EXPOSURE_CONTROL
#define REG_CHIP_ID_H 0xf0
#define REG_CHIP_ID_L 0xf1
#define CHIP_ID_H 0x21
#define CHIP_ID_L 0x55
#define REG_NULL 0xFF
#define GC2155_XVCLK_FREQ 24000000
#define GC2155_NAME "gc2155"
static const char * const gc2155_supply_names[] = {
"avdd",
"dovdd",
"dvdd",
};
#define GC2155_NUM_SUPPLIES ARRAY_SIZE(gc2155_supply_names)
struct regval {
u8 addr;
u8 val;
};
struct gc2155_mode {
u32 width;
u32 height;
unsigned int fps;
struct v4l2_fract max_fps;
const struct regval *reg_list;
};
struct gc2155 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct gpio_desc *power_gpio;
struct regulator_bulk_data supplies[GC2155_NUM_SUPPLIES];
bool streaming;
bool power_on;
struct mutex mutex; /* lock to serialize v4l2 callback */
struct v4l2_subdev subdev;
struct media_pad pad;
struct v4l2_mbus_framefmt format;
unsigned int fps;
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *pixel_rate;
const struct gc2155_mode *cur_mode;
const struct gc2155_mode *framesize_cfg;
unsigned int cfg_num;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
#define to_gc2155(sd) container_of(sd, struct gc2155, subdev)
static struct regval gc2155_global_regs[] = {
{0xfe, 0xf0},
{0xfe, 0xf0},
{0xfe, 0xf0},
{0xfc, 0x06},
{0xf6, 0x00},
{0xf7, 0x1d},
{0xf8, 0x84},
{0xfa, 0x00},
{0xf9, 0xfe},
{0xf2, 0x00},
/* ISP reg */
{0xfe, 0x00},
{0x03, 0x04},
{0x04, 0xe2},
{0x09, 0x00},
{0x0a, 0x00},
{0x0b, 0x00},
{0x0c, 0x00},
{0x0d, 0x04},
{0x0e, 0xc0},
{0x0f, 0x06},
{0x10, 0x50},
{0x12, 0x2e},
{0x17, 0x14}, // mirror
{0x18, 0x02},
{0x19, 0x0e},
{0x1a, 0x01},
{0x1b, 0x4b},
{0x1c, 0x07},
{0x1d, 0x10},
{0x1e, 0x98},
{0x1f, 0x78},
{0x20, 0x05},
{0x21, 0x40},
{0x22, 0xf0},
{0x24, 0x16},
{0x25, 0x01},
{0x26, 0x10},
{0x2d, 0x40},
{0x30, 0x01},
{0x31, 0x90},
{0x33, 0x04},
{0x34, 0x01},
/* ISP reg */
{0xfe, 0x00},
{0x80, 0xff},
{0x81, 0x2c},
{0x82, 0xfa},
{0x83, 0x00},
{0x84, 0x00}, //yuv 01
{0x85, 0x08},
{0x86, 0x02},
{0x89, 0x03},
{0x8a, 0x00},
{0x8b, 0x00},
{0xb0, 0x55},
{0xc3, 0x11}, //00
{0xc4, 0x20},
{0xc5, 0x30},
{0xc6, 0x38},
{0xc7, 0x40},
{0xec, 0x02},
{0xed, 0x04},
{0xee, 0x60},
{0xef, 0x90},
{0xb6, 0x01},
{0x90, 0x01},
{0x91, 0x00},
{0x92, 0x00},
{0x93, 0x00},
{0x94, 0x00},
{0x95, 0x04},
{0x96, 0xb0},
{0x97, 0x06},
{0x98, 0x40},
/* BLK */
{0xfe, 0x00},
{0x18, 0x02},
{0x40, 0x42},
{0x41, 0x00},
{0x43, 0x5b}, //0x54
{0x5e, 0x00},
{0x5f, 0x00},
{0x60, 0x00},
{0x61, 0x00},
{0x62, 0x00},
{0x63, 0x00},
{0x64, 0x00},
{0x65, 0x00},
{0x66, 0x20},
{0x67, 0x20},
{0x68, 0x20},
{0x69, 0x20},
{0x6a, 0x08},
{0x6b, 0x08},
{0x6c, 0x08},
{0x6d, 0x08},
{0x6e, 0x08},
{0x6f, 0x08},
{0x70, 0x08},
{0x71, 0x08},
{0x72, 0xf0},
{0x7e, 0x3c},
{0x7f, 0x00},
{0xfe, 0x00},
/* AEC */
{0xfe, 0x01},
{0x01, 0x08},
{0x02, 0xc0},
{0x03, 0x04},
{0x04, 0x90},
{0x05, 0x30},
{0x06, 0x98},
{0x07, 0x28},
{0x08, 0x6c},
{0x09, 0x00},
{0x0a, 0xc2},
{0x0b, 0x11},
{0x0c, 0x10},
{0x13, 0x2d},
{0x17, 0x00},
{0x1c, 0x11},
{0x1e, 0x61},
{0x1f, 0x30},
{0x20, 0x40},
{0x22, 0x80},
{0x23, 0x20},
{0x12, 0x35},
{0x15, 0x50},
{0x10, 0x31},
{0x3e, 0x28},
{0x3f, 0xe0},
{0x40, 0xe0},
{0x41, 0x08},
{0xfe, 0x02},
{0x0f, 0x05},
/* INTPEE */
{0xfe, 0x02},
{0x90, 0x6c},
{0x91, 0x03},
{0x92, 0xc4},
{0x97, 0x64},
{0x98, 0x88},
{0x9d, 0x08},
{0xa2, 0x11},
{0xfe, 0x00},
/* DNDD */
{0xfe, 0x02},
{0x80, 0xc1},
{0x81, 0x08},
{0x82, 0x05},
{0x83, 0x04},
{0x84, 0x0a},
{0x86, 0x80},
{0x87, 0x30},
{0x88, 0x15},
{0x89, 0x80},
{0x8a, 0x60},
{0x8b, 0x30},
/* ASDE */
{0xfe, 0x01},
{0x21, 0x14},
{0xfe, 0x02},
{0x3c, 0x06},
{0x3d, 0x40},
{0x48, 0x30},
{0x49, 0x06},
{0x4b, 0x08},
{0x4c, 0x20},
{0xa3, 0x50},
{0xa4, 0x30},
{0xa5, 0x40},
{0xa6, 0x80},
{0xab, 0x40},
{0xae, 0x0c},
{0xb3, 0x42},
{0xb4, 0x24},
{0xb6, 0x50},
{0xb7, 0x01},
{0xb9, 0x28},
{0xfe, 0x00},
/* gamma1 */
{0xfe, 0x02},
{0x10, 0x0d},
{0x11, 0x12},
{0x12, 0x17},
{0x13, 0x1c},
{0x14, 0x27},
{0x15, 0x34},
{0x16, 0x44},
{0x17, 0x55},
{0x18, 0x6e},
{0x19, 0x81},
{0x1a, 0x91},
{0x1b, 0x9c},
{0x1c, 0xaa},
{0x1d, 0xbb},
{0x1e, 0xca},
{0x1f, 0xd5},
{0x20, 0xe0},
{0x21, 0xe7},
{0x22, 0xed},
{0x23, 0xf6},
{0x24, 0xfb},
{0x25, 0xff},
/* gamma2 */
{0xfe, 0x02},
{0x26, 0x0d},
{0x27, 0x12},
{0x28, 0x17},
{0x29, 0x1c},
{0x2a, 0x27},
{0x2b, 0x34},
{0x2c, 0x44},
{0x2d, 0x55},
{0x2e, 0x6e},
{0x2f, 0x81},
{0x30, 0x91},
{0x31, 0x9c},
{0x32, 0xaa},
{0x33, 0xbb},
{0x34, 0xca},
{0x35, 0xd5},
{0x36, 0xe0},
{0x37, 0xe7},
{0x38, 0xed},
{0x39, 0xf6},
{0x3a, 0xfb},
{0x3b, 0xff},
/* YCP */
{0xfe, 0x02},
{0xd1, 0x28},
{0xd2, 0x28},
{0xdd, 0x14},
{0xde, 0x88},
{0xed, 0x80},
/* LSC */
{0xfe, 0x01},
{0xc2, 0x1f},
{0xc3, 0x13},
{0xc4, 0x0e},
{0xc8, 0x16},
{0xc9, 0x0f},
{0xca, 0x0c},
{0xbc, 0x52},
{0xbd, 0x2c},
{0xbe, 0x27},
{0xb6, 0x47},
{0xb7, 0x32},
{0xb8, 0x30},
{0xc5, 0x00},
{0xc6, 0x00},
{0xc7, 0x00},
{0xcb, 0x00},
{0xcc, 0x00},
{0xcd, 0x00},
{0xbf, 0x0e},
{0xc0, 0x00},
{0xc1, 0x00},
{0xb9, 0x08},
{0xba, 0x00},
{0xbb, 0x00},
{0xaa, 0x0a},
{0xab, 0x0c},
{0xac, 0x0d},
{0xad, 0x02},
{0xae, 0x06},
{0xaf, 0x05},
{0xb0, 0x00},
{0xb1, 0x05},
{0xb2, 0x02},
{0xb3, 0x04},
{0xb4, 0x04},
{0xb5, 0x05},
{0xd0, 0x00},
{0xd1, 0x00},
{0xd2, 0x00},
{0xd6, 0x02},
{0xd7, 0x00},
{0xd8, 0x00},
{0xd9, 0x00},
{0xda, 0x00},
{0xdb, 0x00},
{0xd3, 0x00},
{0xd4, 0x00},
{0xd5, 0x00},
{0xa4, 0x04},
{0xa5, 0x00},
{0xa6, 0x77},
{0xa7, 0x77},
{0xa8, 0x77},
{0xa9, 0x77},
{0xa1, 0x80},
{0xa2, 0x80},
{0xfe, 0x01},
{0xdc, 0x35},
{0xdd, 0x28},
{0xdf, 0x0d},
{0xe0, 0x70},
{0xe1, 0x78},
{0xe2, 0x70},
{0xe3, 0x78},
{0xe6, 0x90},
{0xe7, 0x70},
{0xe8, 0x90},
{0xe9, 0x70},
{0xfe, 0x00},
/* AWB */
{0xfe, 0x01},
{0x4f, 0x00},
{0x4f, 0x00},
{0x4b, 0x01},
{0x4f, 0x00},
{0x4c, 0x01},
{0x4d, 0x71},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x91},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x50},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x70},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x90},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0xb0},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0xd0},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x4f},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x6f},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x8f},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0xaf},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0xcf},
{0x4e, 0x02},
{0x4c, 0x01},
{0x4d, 0x6e},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x8e},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xae},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xce},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x4d},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x6d},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x8d},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xad},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xcd},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x4c},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x6c},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x8c},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xac},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xcc},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xec},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x4b},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x6b},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x8b},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0xab},
{0x4e, 0x03},
{0x4c, 0x01},
{0x4d, 0x8a},
{0x4e, 0x04},
{0x4c, 0x01},
{0x4d, 0xaa},
{0x4e, 0x04},
{0x4c, 0x01},
{0x4d, 0xca},
{0x4e, 0x04},
{0x4c, 0x01},
{0x4d, 0xa9},
{0x4e, 0x04},
{0x4c, 0x01},
{0x4d, 0xc9},
{0x4e, 0x04},
{0x4c, 0x01},
{0x4d, 0xcb},
{0x4e, 0x05},
{0x4c, 0x01},
{0x4d, 0xeb},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x0b},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x2b},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x4b},
{0x4e, 0x05},
{0x4c, 0x01},
{0x4d, 0xea},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x0a},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x2a},
{0x4e, 0x05},
{0x4c, 0x02},
{0x4d, 0x6a},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x29},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x49},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x69},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x89},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0xa9},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0xc9},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x48},
{0x4e, 0x06},
{0x4c, 0x02},
{0x4d, 0x68},
{0x4e, 0x06},
{0x4c, 0x03},
{0x4d, 0x09},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xa8},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xc8},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xe8},
{0x4e, 0x07},
{0x4c, 0x03},
{0x4d, 0x08},
{0x4e, 0x07},
{0x4c, 0x03},
{0x4d, 0x28},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0x87},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xa7},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xc7},
{0x4e, 0x07},
{0x4c, 0x02},
{0x4d, 0xe7},
{0x4e, 0x07},
{0x4c, 0x03},
{0x4d, 0x07},
{0x4e, 0x07},
{0x4f, 0x01},
{0xfe, 0x01},
{0x50, 0x80},
{0x51, 0xa8},
{0x52, 0x57},
{0x53, 0x38},
{0x54, 0xc7},
{0x56, 0x0e},
{0x58, 0x08},
{0x5b, 0x00},
{0x5c, 0x74},
{0x5d, 0x8b},
{0x61, 0xd3},
{0x62, 0x90},
{0x63, 0xaa},
{0x65, 0x04},
{0x67, 0xb2},
{0x68, 0xac},
{0x69, 0x00},
{0x6a, 0xb2},
{0x6b, 0xac},
{0x6c, 0xdc},
{0x6d, 0xb0},
{0x6e, 0x30},
{0x6f, 0x40},
{0x70, 0x05},
{0x71, 0x80},
{0x72, 0x80},
{0x73, 0x30},
{0x74, 0x01},
{0x75, 0x01},
{0x7f, 0x08},
{0x76, 0x70},
{0x77, 0x48},
{0x78, 0xa0},
{0xfe, 0x00},
/* CC */
{0xfe, 0x02},
{0xc0, 0x01},
{0xc1, 0x4a},
{0xc2, 0xf3},
{0xc3, 0xfc},
{0xc4, 0xe4},
{0xc5, 0x48},
{0xc6, 0xec},
{0xc7, 0x45},
{0xc8, 0xf8},
{0xc9, 0x02},
{0xca, 0xfe},
{0xcb, 0x42},
{0xcc, 0x00},
{0xcd, 0x45},
{0xce, 0xf0},
{0xcf, 0x00},
{0xe3, 0xf0},
{0xe4, 0x45},
{0xe5, 0xe8},
/* ABS */
{0xfe, 0x01},
{0x9f, 0x42},
{0xfe, 0x00},
/* frame rate 50Hz */
{0xfe, 0x00},
{0x05, 0x02},
{0x06, 0x20},
{0x07, 0x00},
{0x08, 0x50},
{0xfe, 0x01},
{0x25, 0x00},
{0x26, 0xfa},
{0x27, 0x04},
{0x28, 0xe2},
{0x29, 0x04},
{0x2a, 0xe2},
{0x2b, 0x04},
{0x2c, 0xe2},
{0x2d, 0x04},
{0x2e, 0xe2},
/* SVGA */
{0xfe, 0x00},
{0xfa, 0x00},
{0xfd, 0x01},
/* crop window */
{0xfe, 0x00},
{0x90, 0x01},
{0x91, 0x00},
{0x92, 0x00},
{0x93, 0x00},
{0x94, 0x00},
{0x95, 0x02},
{0x96, 0x58},
{0x97, 0x03},
{0x98, 0x20},
{0x99, 0x11},
{0x9a, 0x06},
/* AWB */
{0xfe, 0x00},
{0xec, 0x01},
{0xed, 0x02},
{0xee, 0x30},
{0xef, 0x48},
{0xfe, 0x01},
{0x74, 0x00},
/* AEC */
{0xfe, 0x01},
{0x01, 0x04},
{0x02, 0x60},
{0x03, 0x02},
{0x04, 0x48},
{0x05, 0x18},
{0x06, 0x4c},
{0x07, 0x14},
{0x08, 0x36},
{0x0a, 0xc0},
{0x21, 0x14},
{0xfe, 0x00},
/* gamma */
{0xfe, 0x00},
{0xc3, 0x11},
{0xc4, 0x20},
{0xc5, 0x30},
{0xfe, 0x00},
/* OUTPUT */
{0xfe, 0x00},
{0xf2, 0x0f},
{REG_NULL, 0x0},
};
static struct regval gc2155_800x600_15fps[] = {
//SENSORDB("GC2155_Sensor_SVGA"},
{0xfe, 0x00},
{0xb6, 0x01},
{0xfd, 0x01},
{0xfa, 0x00},
/*crop window*/
{0xfe, 0x00},
{0x90, 0x01},
{0x91, 0x00},
{0x92, 0x00},
{0x93, 0x00},
{0x94, 0x00},
{0x95, 0x02},
{0x96, 0x58},
{0x97, 0x03},
{0x98, 0x20},
{0x99, 0x11},
{0x9a, 0x06},
/*AWB*/
{0xfe, 0x00},
{0xec, 0x01},
{0xed, 0x02},
{0xee, 0x30},
{0xef, 0x48},
{0xfe, 0x01},
{0x74, 0x00},
/* AEC */
{0xfe, 0x01},
{0x01, 0x04},
{0x02, 0x60},
{0x03, 0x02},
{0x04, 0x48},
{0x05, 0x18},
{0x06, 0x4c},
{0x07, 0x14},
{0x08, 0x36},
{0x0a, 0xc0},
{0x21, 0x14},
{0xfe, 0x00},
/* gamma */
{0xfe, 0x00},
{0xc3, 0x11},
{0xc4, 0x20},
{0xc5, 0x30},
{0xfe, 0x00},
{REG_NULL, 0x0},
};
static struct regval gc2155_1600x1200_7fps[] = {
//SENSORDB("GC2155_Sensor_2M"},
{0xfe, 0x00},
{0xb6, 0x00},
{0xfa, 0x11},
{0xfd, 0x00},
/* crop window */
{0xfe, 0x00},
{0x90, 0x01},
{0x91, 0x00},
{0x92, 0x00},
{0x93, 0x00},
{0x94, 0x00},
{0x95, 0x04},
{0x96, 0xb0},
{0x97, 0x06},
{0x98, 0x40},
{0x99, 0x11},
{0x9a, 0x06},
/*AWB*/
{0xfe, 0x00},
{0xec, 0x02},
{0xed, 0x04},
{0xee, 0x60},
{0xef, 0x90},
{0xfe, 0x01},
{0x74, 0x01},
/* AEC */
{0xfe, 0x01},
{0x01, 0x08},
{0x02, 0xc0},
{0x03, 0x04},
{0x04, 0x90},
{0x05, 0x30},
{0x06, 0x98},
{0x07, 0x28},
{0x08, 0x6c},
{0x0a, 0xc2},
{0x21, 0x15}, //if 0xfa=11,then 0x21=15;else if 0xfa=00,then 0x21=14
{0xfe, 0x00},
/* gamma */
{0xfe, 0x00},
{0xc3, 0x00}, //if shutter/2 when capture,then exp_gamma_th/2
{0xc4, 0x90},
{0xc5, 0x98},
{0xfe, 0x00},
{REG_NULL, 0x0},
};
static const struct gc2155_mode supported_modes[] = {
{
.width = 800,
.height = 600,
.fps = 15,
.max_fps = {
.numerator = 10000,
.denominator = 150000,
},
.reg_list = gc2155_800x600_15fps,
},
{
.width = 1600,
.height = 1200,
.fps = 7,
.max_fps = {
.numerator = 10000,
.denominator = 70000,
},
.reg_list = gc2155_1600x1200_7fps,
},
};
static int gc2155_write_reg(struct i2c_client *client, u8 reg, u8 val)
{
int ret;
ret = i2c_smbus_write_byte_data(client, reg, val);
if (ret < 0)
dev_err(&client->dev, "write reg error: %d\n", ret);
return ret;
}
static int gc2155_write_array(struct i2c_client *client,
const struct regval *regs)
{
int i, ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
ret = gc2155_write_reg(client, regs[i].addr, regs[i].val);
return ret;
}
static inline u8 gc2155_read_reg(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
}
static int gc2155_get_reso_dist(const struct gc2155_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct gc2155_mode *
gc2155_find_best_fit(struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt = &fmt->format;
int dist;
int cur_best_fit = 0;
int cur_best_fit_dist = -1;
int i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = gc2155_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];
}
#ifdef GC2155_EXPOSURE_CONTROL
/*
* the function is called before sensor register setting in VIDIOC_S_FMT
*/
/* Row times = Hb + Sh_delay + win_width + 4*/
static int gc2155_aec_ctrl(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = 0;
u8 value;
static unsigned int capture_fps = 75, capture_lines = 1266;
static unsigned int preview_fps = 150, preview_lines = 1266;
static unsigned int lines_10ms = 1;
static unsigned int shutter_h = 0x04, shutter_l = 0xe2;
static unsigned int cap = 0, shutter = 0x04e2;
dev_info(&client->dev, "%s enter\n", __func__);
if ((mf->width == 800 && mf->height == 600) && cap == 1) {
cap = 0;
ret = gc2155_write_reg(client, 0xfe, 0x00);
ret |= gc2155_write_reg(client, 0xb6, 0x00);
ret |= gc2155_write_reg(client, 0x03, shutter_h);
ret |= gc2155_write_reg(client, 0x04, shutter_l);
ret |= gc2155_write_reg(client, 0x82, 0xfa);
ret |= gc2155_write_reg(client, 0xb6, 0x01);
if (ret)
dev_err(&client->dev, "gc2155 reconfig failed!\n");
}
if (mf->width == 1600 && mf->height == 1200) {
cap = 1;
ret = gc2155_write_reg(client, 0xfe, 0x00);
ret |= gc2155_write_reg(client, 0xb6, 0x00);
ret |= gc2155_write_reg(client, 0x82, 0xf8);
/*shutter calculate*/
value = gc2155_read_reg(client, 0x03);
shutter_h = value;
shutter = (value << 8);
value = gc2155_read_reg(client, 0x04);
shutter_l = value;
shutter |= (value & 0xff);
dev_info(&client->dev, "%s(%d) 800x600 shutter read(0x%04x)!\n",
__func__, __LINE__, shutter);
shutter = shutter * capture_lines / preview_lines;
shutter = shutter * capture_fps / preview_fps;
lines_10ms = capture_fps * capture_lines / 100 / 10;
if (shutter > lines_10ms) {
shutter = shutter + lines_10ms / 2;
shutter /= lines_10ms;
shutter *= lines_10ms;
}
if (shutter < 1)
shutter = 0x276;
dev_info(&client->dev, "%s(%d)lines_10ms(%d),cal(0x%08x)!\n",
__func__, __LINE__, lines_10ms, shutter);
ret |= gc2155_write_reg(client, 0x03, ((shutter >> 8) & 0x1f));
ret |= gc2155_write_reg(client, 0x04, (shutter & 0xff));
if (ret)
dev_err(&client->dev, "full exp reconfig failed!\n");
}
return ret;
}
#endif
static int gc2155_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc2155 *gc2155 = to_gc2155(sd);
const struct gc2155_mode *mode;
mutex_lock(&gc2155->mutex);
mode = gc2155_find_best_fit(fmt);
fmt->format.code = MEDIA_BUS_FMT_UYVY8_2X8;
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(&gc2155->mutex);
return -ENOTTY;
#endif
} else {
gc2155->cur_mode = mode;
gc2155->format = fmt->format;
}
#ifdef GC2155_EXPOSURE_CONTROL
if (gc2155->power_on)
gc2155_aec_ctrl(sd, &fmt->format);
#endif
mutex_unlock(&gc2155->mutex);
return 0;
}
static int gc2155_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc2155 *gc2155 = to_gc2155(sd);
const struct gc2155_mode *mode = gc2155->cur_mode;
mutex_lock(&gc2155->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(&gc2155->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = MEDIA_BUS_FMT_UYVY8_2X8;
fmt->format.field = V4L2_FIELD_NONE;
fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
}
mutex_unlock(&gc2155->mutex);
return 0;
}
static void gc2155_get_default_format(struct gc2155 *gc2155,
struct v4l2_mbus_framefmt *format)
{
format->width = gc2155->cur_mode->width;
format->height = gc2155->cur_mode->height;
format->colorspace = V4L2_COLORSPACE_SRGB;
format->code = MEDIA_BUS_FMT_UYVY8_2X8;
format->field = V4L2_FIELD_NONE;
}
static int gc2155_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
code->code = MEDIA_BUS_FMT_UYVY8_2X8;
return 0;
}
static int gc2155_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
u32 index = fse->index;
if (index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
fse->min_width = supported_modes[index].width;
fse->max_width = supported_modes[index].width;
fse->max_height = supported_modes[index].height;
fse->min_height = supported_modes[index].height;
return 0;
}
static int __gc2155_power_on(struct gc2155 *gc2155)
{
int ret;
struct device *dev = &gc2155->client->dev;
dev_info(dev, "%s(%d)\n", __func__, __LINE__);
if (!IS_ERR(gc2155->power_gpio)) {
gpiod_set_value_cansleep(gc2155->power_gpio, 1);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc2155->reset_gpio)) {
gpiod_set_value_cansleep(gc2155->reset_gpio, 0);
usleep_range(2000, 5000);
}
ret = regulator_bulk_enable(GC2155_NUM_SUPPLIES, gc2155->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
return ret;
}
ret = clk_set_rate(gc2155->xvclk, GC2155_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
if (clk_get_rate(gc2155->xvclk) != GC2155_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(gc2155->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(gc2155->pwdn_gpio)) {
gpiod_set_value_cansleep(gc2155->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
if (!IS_ERR(gc2155->reset_gpio))
gpiod_set_value_cansleep(gc2155->reset_gpio, 1);
usleep_range(7000, 10000);
gc2155->power_on = true;
return 0;
}
static void __gc2155_power_off(struct gc2155 *gc2155)
{
if (!IS_ERR(gc2155->reset_gpio))
gpiod_set_value_cansleep(gc2155->reset_gpio, 0);
if (!IS_ERR(gc2155->pwdn_gpio))
gpiod_set_value_cansleep(gc2155->pwdn_gpio, 1);
if (!IS_ERR(gc2155->xvclk))
clk_disable_unprepare(gc2155->xvclk);
if (!IS_ERR(gc2155->power_gpio))
gpiod_set_value_cansleep(gc2155->power_gpio, 0);
regulator_bulk_disable(GC2155_NUM_SUPPLIES, gc2155->supplies);
gc2155->power_on = false;
}
static void gc2155_get_module_inf(struct gc2155 *gc2155,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, GC2155_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, gc2155->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, gc2155->len_name, sizeof(inf->base.lens));
}
static long gc2155_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct gc2155 *gc2155 = to_gc2155(sd);
long ret = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
gc2155_get_module_inf(gc2155, (struct rkmodule_inf *)arg);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long gc2155_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;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = gc2155_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 = gc2155_ioctl(sd, cmd, cfg);
kfree(cfg);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int gc2155_s_stream(struct v4l2_subdev *sd, int on)
{
struct gc2155 *gc2155 = to_gc2155(sd);
struct i2c_client *client = gc2155->client;
int ret = 0;
u8 val;
unsigned int fps;
int delay_us;
fps = DIV_ROUND_CLOSEST(gc2155->cur_mode->max_fps.denominator,
gc2155->cur_mode->max_fps.numerator);
dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
gc2155->cur_mode->width,
gc2155->cur_mode->height,
fps);
mutex_lock(&gc2155->mutex);
on = !!on;
if (on == gc2155->streaming)
goto unlock_and_return;
if (on) {
ret = pm_runtime_get_sync(&gc2155->client->dev);
if (ret < 0) {
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
ret = gc2155_write_array(gc2155->client,
gc2155->cur_mode->reg_list);
if (ret) {
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
pm_runtime_put(&client->dev);
}
val = on ? 0x0f : 0;
ret = gc2155_write_reg(client, 0xf2, val);
gc2155->streaming = on;
/* delay to enable oneframe complete */
if (!on) {
delay_us = 1000 * 1000 / fps;
usleep_range(delay_us, delay_us + 10);
dev_info(&client->dev, "%s: on: %d, sleep(%dus)\n",
__func__, on, delay_us);
}
unlock_and_return:
mutex_unlock(&gc2155->mutex);
return ret;
}
static int gc2155_s_power(struct v4l2_subdev *sd, int on)
{
struct gc2155 *gc2155 = to_gc2155(sd);
struct i2c_client *client = gc2155->client;
int ret = 0;
mutex_lock(&gc2155->mutex);
/* If the power state is not modified - no work to do. */
if (gc2155->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;
}
ret = gc2155_write_array(gc2155->client, gc2155_global_regs);
if (ret) {
v4l2_err(sd, "could not set init registers\n");
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
gc2155->power_on = true;
} else {
pm_runtime_put(&client->dev);
gc2155->power_on = false;
}
unlock_and_return:
mutex_unlock(&gc2155->mutex);
return ret;
}
static int gc2155_set_test_pattern(struct gc2155 *gc2155, int value)
{
return 0;
}
static int gc2155_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gc2155 *gc2155 =
container_of(ctrl->handler, struct gc2155, ctrls);
switch (ctrl->id) {
case V4L2_CID_TEST_PATTERN:
return gc2155_set_test_pattern(gc2155, ctrl->val);
}
return 0;
}
static const struct v4l2_ctrl_ops gc2155_ctrl_ops = {
.s_ctrl = gc2155_s_ctrl,
};
static const char * const gc2155_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bars",
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc2155_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct gc2155 *gc2155 = to_gc2155(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct gc2155_mode *def_mode = &supported_modes[0];
mutex_lock(&gc2155->mutex);
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
try_fmt->field = V4L2_FIELD_NONE;
try_fmt->colorspace = V4L2_COLORSPACE_SRGB;
mutex_unlock(&gc2155->mutex);
return 0;
}
#endif
static int gc2155_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc2155 *gc2155 = to_gc2155(sd);
return __gc2155_power_on(gc2155);
}
static int gc2155_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc2155 *gc2155 = to_gc2155(sd);
__gc2155_power_off(gc2155);
return 0;
}
static int gc2155_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 gc2155_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct gc2155 *gc2155 = to_gc2155(sd);
mutex_lock(&gc2155->mutex);
fi->interval = gc2155->cur_mode->max_fps;
mutex_unlock(&gc2155->mutex);
return 0;
}
static void __gc2155_try_frame_size_fps(struct gc2155 *gc2155,
struct v4l2_mbus_framefmt *mf,
const struct gc2155_mode **size,
unsigned int fps)
{
const struct gc2155_mode *fsize = &gc2155->framesize_cfg[0];
const struct gc2155_mode *match = NULL;
unsigned int i = gc2155->cfg_num;
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->reg_list[0].addr) {
min_err = err;
match = fsize;
}
fsize++;
}
if (!match) {
match = &gc2155->framesize_cfg[0];
} else {
fsize = &gc2155->framesize_cfg[0];
for (i = 0; i < gc2155->cfg_num; i++) {
if (fsize->width == match->width &&
fsize->height == match->height &&
fps >= fsize->fps)
match = fsize;
fsize++;
}
}
mf->width = match->width;
mf->height = match->height;
if (size)
*size = match;
}
static int gc2155_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct gc2155 *gc2155 = to_gc2155(sd);
const struct gc2155_mode *mode = NULL;
struct v4l2_mbus_framefmt mf;
unsigned int fps;
int ret = 0;
dev_dbg(&client->dev, "Setting %d/%d frame interval\n",
fi->interval.numerator, fi->interval.denominator);
mutex_lock(&gc2155->mutex);
if (gc2155->cur_mode->width == 1600)
goto unlock;
fps = DIV_ROUND_CLOSEST(fi->interval.denominator,
fi->interval.numerator);
mf = gc2155->format;
__gc2155_try_frame_size_fps(gc2155, &mf, &mode, fps);
if (gc2155->cur_mode != mode) {
ret = gc2155_write_array(client, mode->reg_list);
if (ret)
goto unlock;
gc2155->cur_mode = mode;
gc2155->fps = fps;
}
unlock:
mutex_unlock(&gc2155->mutex);
return ret;
}
static int gc2155_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 != MEDIA_BUS_FMT_UYVY8_2X8)
return -EINVAL;
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 gc2155_pm_ops = {
SET_RUNTIME_PM_OPS(gc2155_runtime_suspend,
gc2155_runtime_resume, NULL)
};
static const struct v4l2_subdev_core_ops gc2155_core_ops = {
.log_status = v4l2_ctrl_subdev_log_status,
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
.ioctl = gc2155_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = gc2155_compat_ioctl32,
#endif
.s_power = gc2155_s_power,
};
static const struct v4l2_subdev_video_ops gc2155_video_ops = {
.s_stream = gc2155_s_stream,
.g_mbus_config = gc2155_g_mbus_config,
.g_frame_interval = gc2155_g_frame_interval,
.s_frame_interval = gc2155_s_frame_interval,
};
static const struct v4l2_subdev_pad_ops gc2155_pad_ops = {
.enum_mbus_code = gc2155_enum_mbus_code,
.enum_frame_size = gc2155_enum_frame_sizes,
.enum_frame_interval = gc2155_enum_frame_interval,
.get_fmt = gc2155_get_fmt,
.set_fmt = gc2155_set_fmt,
};
static const struct v4l2_subdev_ops gc2155_subdev_ops = {
.core = &gc2155_core_ops,
.video = &gc2155_video_ops,
.pad = &gc2155_pad_ops,
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops gc2155_internal_ops = {
.open = gc2155_open,
};
#endif
static int gc2155_check_sensor_id(struct gc2155 *gc2155,
struct i2c_client *client)
{
struct device *dev = &gc2155->client->dev;
u8 id_h, id_l;
id_h = gc2155_read_reg(client, REG_CHIP_ID_H);
id_l = gc2155_read_reg(client, REG_CHIP_ID_L);
if (id_h != CHIP_ID_H && id_l != CHIP_ID_L) {
dev_err(dev, "Wrong camera sensor id(0x%02x%02x)\n",
id_h, id_l);
return -EINVAL;
}
dev_info(dev, "Detected GC2155 (0x%02x%02x) sensor\n",
CHIP_ID_H, CHIP_ID_L);
return 0;
}
static int gc2155_configure_regulators(struct gc2155 *gc2155)
{
u32 i;
for (i = 0; i < GC2155_NUM_SUPPLIES; i++)
gc2155->supplies[i].supply = gc2155_supply_names[i];
return devm_regulator_bulk_get(&gc2155->client->dev,
GC2155_NUM_SUPPLIES,
gc2155->supplies);
}
static int gc2155_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct gc2155 *gc2155;
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);
gc2155 = devm_kzalloc(dev, sizeof(*gc2155), GFP_KERNEL);
if (!gc2155)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&gc2155->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&gc2155->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&gc2155->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&gc2155->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
gc2155->client = client;
gc2155->cur_mode = &supported_modes[0];
gc2155_get_default_format(gc2155, &gc2155->format);
gc2155->format.width = gc2155->cur_mode->width;
gc2155->format.height = gc2155->cur_mode->height;
gc2155->fps = DIV_ROUND_CLOSEST(gc2155->cur_mode->max_fps.denominator,
gc2155->cur_mode->max_fps.numerator);
gc2155->framesize_cfg = supported_modes;
gc2155->cfg_num = ARRAY_SIZE(supported_modes);
gc2155->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(gc2155->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
gc2155->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(gc2155->power_gpio))
dev_info(dev, "Failed to get power-gpios, maybe no use\n");
gc2155->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gc2155->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
gc2155->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(gc2155->pwdn_gpio))
dev_warn(dev, "Failed to get gc2155-gpios\n");
ret = gc2155_configure_regulators(gc2155);
if (ret) {
dev_warn(dev, "Failed to get power regulators\n");
return ret;
}
v4l2_ctrl_handler_init(&gc2155->ctrls, 2);
gc2155->pixel_rate =
v4l2_ctrl_new_std(&gc2155->ctrls, &gc2155_ctrl_ops,
V4L2_CID_PIXEL_RATE, 0,
GC2155_PIXEL_RATE, 1,
GC2155_PIXEL_RATE);
v4l2_ctrl_new_std_menu_items(&gc2155->ctrls, &gc2155_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(gc2155_test_pattern_menu) - 1,
0, 0, gc2155_test_pattern_menu);
gc2155->subdev.ctrl_handler = &gc2155->ctrls;
if (gc2155->ctrls.error) {
dev_err(&client->dev, "%s: control initialization error %d\n",
__func__, gc2155->ctrls.error);
return gc2155->ctrls.error;
}
mutex_init(&gc2155->mutex);
v4l2_i2c_subdev_init(&gc2155->subdev, client, &gc2155_subdev_ops);
ret = __gc2155_power_on(gc2155);
if (ret)
goto err_destroy_mutex;
ret = gc2155_check_sensor_id(gc2155, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
gc2155->subdev.internal_ops = &gc2155_internal_ops;
gc2155->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
gc2155->pad.flags = MEDIA_PAD_FL_SOURCE;
gc2155->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&gc2155->subdev.entity, 1, &gc2155->pad);
if (ret < 0)
goto err_power_off;
#endif
sd = &gc2155->subdev;
memset(facing, 0, sizeof(facing));
if (strcmp(gc2155->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
gc2155->module_index, facing,
GC2155_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(&gc2155->subdev.entity);
#endif
err_power_off:
__gc2155_power_off(gc2155);
err_destroy_mutex:
mutex_destroy(&gc2155->mutex);
v4l2_ctrl_handler_free(&gc2155->ctrls);
return ret;
}
static int gc2155_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc2155 *gc2155 = to_gc2155(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&gc2155->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__gc2155_power_off(gc2155);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc2155_of_match[] = {
{ .compatible = "galaxycore,gc2155" },
{},
};
MODULE_DEVICE_TABLE(of, gc2155_of_match);
#endif
static const struct i2c_device_id gc2155_match_id[] = {
{"gc2155", 0},
{},
};
static struct i2c_driver gc2155_i2c_driver = {
.driver = {
.name = GC2155_NAME,
.pm = &gc2155_pm_ops,
.of_match_table = of_match_ptr(gc2155_of_match),
},
.probe = gc2155_probe,
.remove = gc2155_remove,
.id_table = gc2155_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&gc2155_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&gc2155_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("GalaxyCore gc2155 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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