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CoolPi-Armbian-Rockchip-RK3.../drivers/media/i2c/hi556.c

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// SPDX-License-Identifier: GPL-2.0
/*
* hi556 driver
*
* Copyright (C) 2022 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 init version
*/
#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>
/* verify default register values */
//#define CHECK_REG_VALUE
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x00)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
#define MIPI_FREQ 440000000U
#define HI556_PIXEL_RATE (440000000LL * 2LL * 2LL / 10)
#define HI556_XVCLK_FREQ 24000000
#define CHIP_ID 0x0556
#define HI556_REG_CHIP_ID 0x0f16
#define HI556_REG_CTRL_MODE 0x0A00
#define HI556_MODE_SW_STANDBY 0x00
#define HI556_MODE_STREAMING 0x01
#define HI556_REG_EXPOSURE_H 0x0073
#define HI556_REG_EXPOSURE_M 0x0074
#define HI556_REG_EXPOSURE_L 0x0075
#define HI556_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 16) & 0xF) /* 4 Bits */
#define HI556_FETCH_MIDDLE_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF) /* 8 Bits */
#define HI556_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 8 Bits */
#define HI556_EXPOSURE_MIN 4
#define HI556_EXPOSURE_STEP 1
#define HI556_VTS_MAX 0x7fff
#define HI556_REG_GAIN 0x0077
#define HI556_GAIN_MASK 0xff
#define ANALOG_GAIN_MIN 0x00
#define ANALOG_GAIN_MAX 0xF0
#define ANALOG_GAIN_STEP 1
#define ANALOG_GAIN_DEFAULT 0x10
#define HI556_REG_GROUP 0x0046
#define HI556_REG_TEST_PATTERN 0x0A05
#define HI556_TEST_PATTERN_ENABLE 0x01
#define HI556_TEST_PATTERN_DISABLE 0x0
#define HI556_REG_TEST_PATTERN_SELECT 0x0201
#define HI556_REG_VTS 0x0006
#define HI556_FLIP_MIRROR_REG 0x000e
#define HI556_FETCH_MIRROR(VAL, ENABLE) (ENABLE ? VAL | 0x01 : VAL & 0xfe)
#define HI556_FETCH_FLIP(VAL, ENABLE) (ENABLE ? VAL | 0x02 : VAL & 0xfd)
#define REG_NULL 0xFFFF
#define DELAY_MS 0xEEEE /* Array delay token */
#define HI556_REG_VALUE_08BIT 1
#define HI556_REG_VALUE_16BIT 2
#define HI556_REG_VALUE_24BIT 3
#define HI556_LANES 2
#define HI556_BITS_PER_SAMPLE 10
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define HI556_NAME "hi556"
#define HI556_MEDIA_BUS_FMT MEDIA_BUS_FMT_SGBRG10_1X10
struct hi556_otp_info {
int flag; // bit[7]: info, bit[6]:wb
int module_id;
int lens_id;
int year;
int month;
int day;
int rg_ratio;
int bg_ratio;
};
static const char * const hi556_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
#define HI556_NUM_SUPPLIES ARRAY_SIZE(hi556_supply_names)
struct regval {
u16 addr;
u16 val;
};
struct hi556_mode {
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
const struct regval *reg_list;
u32 hdr_mode;
};
struct hi556 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *power_gpio;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[HI556_NUM_SUPPLIES];
struct pinctrl *pinctrl;
struct pinctrl_state *pins_default;
struct pinctrl_state *pins_sleep;
struct v4l2_subdev subdev;
struct media_pad pad;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *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 hi556_mode *cur_mode;
unsigned int lane_num;
unsigned int cfg_num;
unsigned int pixel_rate;
u32 module_index;
struct hi556_otp_info *otp;
const char *module_facing;
const char *module_name;
const char *len_name;
struct rkmodule_awb_cfg awb_cfg;
};
#define to_hi556(sd) container_of(sd, struct hi556, subdev)
/*
* Xclk 24Mhz
* Pclk 176Mhz
* linelength 2816(0xb00)
* framelength 1988(0x7c0)
* grabwindow_width 2592
* grabwindow_height 1944
* max_framerate 30fps
* MIPI speed(Mbps) : 840Mbps x 2Lane
*/
static const struct regval hi556_global_regs[] = {
{0x0a00, 0x0000},
{0x0e00, 0x0102},
{0x0e02, 0x0102},
{0x0e0c, 0x0100},
{0x2000, 0x7400},
{0x2002, 0x001c},
{0x2004, 0x0242},
{0x2006, 0x0942},
{0x2008, 0x7007},
{0x200a, 0x0fd9},
{0x200c, 0x0259},
{0x200e, 0x7008},
{0x2010, 0x160e},
{0x2012, 0x0047},
{0x2014, 0x2118},
{0x2016, 0x0041},
{0x2018, 0x00d8},
{0x201a, 0x0145},
{0x201c, 0x0006},
{0x201e, 0x0181},
{0x2020, 0x13cc},
{0x2022, 0x2057},
{0x2024, 0x7001},
{0x2026, 0x0fca},
{0x2028, 0x00cb},
{0x202a, 0x009f},
{0x202c, 0x7002},
{0x202e, 0x13cc},
{0x2030, 0x019b},
{0x2032, 0x014d},
{0x2034, 0x2987},
{0x2036, 0x2766},
{0x2038, 0x0020},
{0x203a, 0x2060},
{0x203c, 0x0e5d},
{0x203e, 0x181d},
{0x2040, 0x2066},
{0x2042, 0x20c4},
{0x2044, 0x5000},
{0x2046, 0x0005},
{0x2048, 0x0000},
{0x204a, 0x01db},
{0x204c, 0x025a},
{0x204e, 0x00c0},
{0x2050, 0x0005},
{0x2052, 0x0006},
{0x2054, 0x0ad9},
{0x2056, 0x0259},
{0x2058, 0x0618},
{0x205a, 0x0258},
{0x205c, 0x2266},
{0x205e, 0x20c8},
{0x2060, 0x2060},
{0x2062, 0x707b},
{0x2064, 0x0fdd},
{0x2066, 0x81b8},
{0x2068, 0x5040},
{0x206a, 0x0020},
{0x206c, 0x5060},
{0x206e, 0x3143},
{0x2070, 0x5081},
{0x2072, 0x025c},
{0x2074, 0x7800},
{0x2076, 0x7400},
{0x2078, 0x001c},
{0x207a, 0x0242},
{0x207c, 0x0942},
{0x207e, 0x0bd9},
{0x2080, 0x0259},
{0x2082, 0x7008},
{0x2084, 0x160e},
{0x2086, 0x0047},
{0x2088, 0x2118},
{0x208a, 0x0041},
{0x208c, 0x00d8},
{0x208e, 0x0145},
{0x2090, 0x0006},
{0x2092, 0x0181},
{0x2094, 0x13cc},
{0x2096, 0x2057},
{0x2098, 0x7001},
{0x209a, 0x0fca},
{0x209c, 0x00cb},
{0x209e, 0x009f},
{0x20a0, 0x7002},
{0x20a2, 0x13cc},
{0x20a4, 0x019b},
{0x20a6, 0x014d},
{0x20a8, 0x2987},
{0x20aa, 0x2766},
{0x20ac, 0x0020},
{0x20ae, 0x2060},
{0x20b0, 0x0e5d},
{0x20b2, 0x181d},
{0x20b4, 0x2066},
{0x20b6, 0x20c4},
{0x20b8, 0x50a0},
{0x20ba, 0x0005},
{0x20bc, 0x0000},
{0x20be, 0x01db},
{0x20c0, 0x025a},
{0x20c2, 0x00c0},
{0x20c4, 0x0005},
{0x20c6, 0x0006},
{0x20c8, 0x0ad9},
{0x20ca, 0x0259},
{0x20cc, 0x0618},
{0x20ce, 0x0258},
{0x20d0, 0x2266},
{0x20d2, 0x20c8},
{0x20d4, 0x2060},
{0x20d6, 0x707b},
{0x20d8, 0x0fdd},
{0x20da, 0x86b8},
{0x20dc, 0x50e0},
{0x20de, 0x0020},
{0x20e0, 0x5100},
{0x20e2, 0x3143},
{0x20e4, 0x5121},
{0x20e6, 0x7800},
{0x20e8, 0x3140},
{0x20ea, 0x01c4},
{0x20ec, 0x01c1},
{0x20ee, 0x01c0},
{0x20f0, 0x01c4},
{0x20f2, 0x2700},
{0x20f4, 0x3d40},
{0x20f6, 0x7800},
{0x20f8, 0xffff},
{0x27fe, 0xe000},
{0x3000, 0x60f8},
{0x3002, 0x187f},
{0x3004, 0x7060},
{0x3006, 0x0114},
{0x3008, 0x60b0},
{0x300a, 0x1473},
{0x300c, 0x0013},
{0x300e, 0x140f},
{0x3010, 0x0040},
{0x3012, 0x100f},
{0x3014, 0x60f8},
{0x3016, 0x187f},
{0x3018, 0x7060},
{0x301a, 0x0114},
{0x301c, 0x60b0},
{0x301e, 0x1473},
{0x3020, 0x0013},
{0x3022, 0x140f},
{0x3024, 0x0040},
{0x3026, 0x000f},
{0x0b00, 0x0000},
{0x0b02, 0x0045},
{0x0b04, 0xb405},
{0x0b06, 0xc403},
{0x0b08, 0x0081},
{0x0b0a, 0x8252},
{0x0b0c, 0xf814},
{0x0b0e, 0xc618},
{0x0b10, 0xa828},
{0x0b12, 0x004c},
{0x0b14, 0x4068},
{0x0b16, 0x0000},
{0x0f30, 0x6e25},
{0x0f32, 0x7067},
{0x0954, 0x0009},
{0x0956, 0x1100},
{0x0958, 0xcc80},
{0x095a, 0x0000},
{0x0c00, 0x1110},
{0x0c02, 0x0011},
{0x0c04, 0x0000},
{0x0c06, 0x0200},
{0x0c10, 0x0040},
{0x0c12, 0x0040},
{0x0c14, 0x0040},
{0x0c16, 0x0040},
{0x0a10, 0x4000},
{0x3068, 0xf800},
{0x306a, 0xf876},
{0x006c, 0x0000},
{0x005e, 0x0200},
{0x000e, 0x0100},
{0x0e0a, 0x0001},
{0x004a, 0x0100},
{0x004c, 0x0000},
{0x004e, 0x0100},
{0x000c, 0x0022},
{0x0008, 0x0b00},
{0x005a, 0x0202},
{0x0012, 0x000e},
{0x0018, 0x0a31},
{0x0022, 0x0008},
{0x0028, 0x0017},
{0x0024, 0x0028},
{0x002a, 0x002d},
{0x0026, 0x0030},
{0x002c, 0x07c7},
{0x002e, 0x1111},
{0x0030, 0x1111},
{0x0032, 0x1111},
{0x0006, 0x0823},
{0x0a22, 0x0000},
{0x0a12, 0x0a20},
{0x0a14, 0x0798},
{0x003e, 0x0000},
{0x0074, 0x0821},
{0x0070, 0x0411},
{0x0002, 0x0000},
{0x0a02, 0x0100},
{0x0a24, 0x0100},
{0x0076, 0x0000},
{0x0060, 0x0000},
{0x0062, 0x0530},
{0x0064, 0x0500},
{0x0066, 0x0530},
{0x0068, 0x0500},
{0x0122, 0x0300},
{0x015a, 0xff08},
{0x0804, 0x0200},
{0x005c, 0x0102},
{0x0a1a, 0x0800},
{0x003c, 0x0101}, //fix framerate
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* Pclk 210Mhz
* linelength 2816
* framelength 2083
* grabwindow_width 2592
* grabwindow_height 1944
* max_framerate 30fps
* MIPI speed(Mbps): 880Mbps x 2lane
*/
static const struct regval hi556_2592x1944_regs_2lane[] = {
{0x0a00, 0x0000},
{0x0b0a, 0x8252},
{0x0f30, 0x6e25},
{0x0f32, 0x7067},
{0x004a, 0x0100},
{0x004c, 0x0000},
{0x004e, 0x0000},
{0x000c, 0x0022},
{0x0008, 0x0b00},
{0x005a, 0x0202},
{0x0012, 0x000e},
{0x0018, 0x0a31},
{0x0022, 0x0008},
{0x0028, 0x0017},
{0x0024, 0x0028},
{0x002a, 0x002d},
{0x0026, 0x0030},
{0x002c, 0x07c7},
{0x002e, 0x1111},
{0x0030, 0x1111},
{0x0032, 0x1111},
{0x0006, 0x0823},
{0x0a22, 0x0000},
{0x0a12, 0x0a20},
{0x0a14, 0x0798},
{0x003e, 0x0000},
{0x0804, 0x0200},
{0x0a04, 0x014a},
{0x090c, 0x0fdc},
{0x090e, 0x002d},
{0x0902, 0x4319},
{0x0914, 0xc10a},
{0x0916, 0x071f},
{0x0918, 0x0408},
{0x091a, 0x0c0d},
{0x091c, 0x0f09},
{0x091e, 0x0a00},
//{0x0a00, 0x0100},
{REG_NULL, 0x00},
};
static const struct hi556_mode supported_modes_2lane[] = {
{
.width = 2592,
.height = 1944,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0810,
.hts_def = 0x0B00,
.vts_def = 0x0823,
.reg_list = hi556_2592x1944_regs_2lane,
.hdr_mode = NO_HDR,
}
};
static const struct hi556_mode *supported_modes;
static const s64 link_freq_menu_items[] = {
MIPI_FREQ
};
static const char * const hi556_test_pattern_menu[] = {
"Disabled",
"Solid color bar",
"100% color bars",
"Fade to gray color bars",
"PN9",
"Horizental/Vertical gradient",
"Check board",
"Slant",
"Resolution",
};
/* Write registers up to 4 at a time */
static int hi556_write_reg(struct i2c_client *client, u16 reg,
u32 len, u32 val)
{
u32 buf_i, val_i;
u8 buf[6];
u8 *val_p;
__be32 val_be;
dev_dbg(&client->dev, "%s(%d) enter!\n", __func__, __LINE__);
dev_dbg(&client->dev, "write reg(0x%x val:0x%x)!\n", reg, val);
if (len > 4)
return -EINVAL;
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
val_be = cpu_to_be32(val);
val_p = (u8 *)&val_be;
buf_i = 2;
val_i = 4 - len;
while (val_i < 4)
buf[buf_i++] = val_p[val_i++];
if (i2c_master_send(client, buf, len + 2) != len + 2) {
dev_err(&client->dev,
"write reg(0x%x val:0x%x)failed !\n", reg, val);
return -EIO;
}
return 0;
}
static int hi556_write_array(struct i2c_client *client,
const struct regval *regs)
{
int i, delay_ms, ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) {
if (regs[i].addr == DELAY_MS) {
delay_ms = regs[i].val;
dev_info(&client->dev, "delay(%d) ms !\n", delay_ms);
usleep_range(1000 * delay_ms, 1000 * delay_ms + 100);
continue;
}
ret = hi556_write_reg(client, regs[i].addr,
HI556_REG_VALUE_16BIT, regs[i].val);
if (ret)
dev_err(&client->dev, "%s failed !\n", __func__);
}
return ret;
}
/* Read registers up to 4 at a time */
static int hi556_read_reg(struct i2c_client *client, u16 reg,
unsigned int len, u32 *val)
{
struct i2c_msg msgs[2];
u8 *data_be_p;
__be32 data_be = 0;
__be16 reg_addr_be = cpu_to_be16(reg);
int ret;
if (len > 4 || !len)
return -EINVAL;
data_be_p = (u8 *)&data_be;
/* Write register address */
msgs[0].addr = client->addr;
msgs[0].flags = 0;
msgs[0].len = 2;
msgs[0].buf = (u8 *)&reg_addr_be;
/* Read data from register */
msgs[1].addr = client->addr;
msgs[1].flags = I2C_M_RD;
msgs[1].len = len;
msgs[1].buf = &data_be_p[4 - len];
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs))
return -EIO;
*val = be32_to_cpu(data_be);
return 0;
}
/* Check Register value */
#ifdef CHECK_REG_VALUE
static int hi556_reg_verify(struct i2c_client *client,
const struct regval *regs)
{
u32 i;
int ret = 0;
u32 value;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) {
ret = hi556_read_reg(client, regs[i].addr,
HI556_REG_VALUE_16BIT, &value);
if (value != regs[i].val) {
dev_info(&client->dev, "%s: 0x%04x is 0x%x instead of 0x%x\n",
__func__, regs[i].addr, value, regs[i].val);
}
}
return ret;
}
#endif
static int hi556_get_reso_dist(const struct hi556_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct hi556_mode *
hi556_find_best_fit(struct hi556 *hi556,
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 < hi556->cfg_num; i++) {
dist = hi556_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 hi556_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct hi556 *hi556 = to_hi556(sd);
const struct hi556_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&hi556->mutex);
mode = hi556_find_best_fit(hi556, fmt);
fmt->format.code = HI556_MEDIA_BUS_FMT;
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, sd_state, fmt->pad) = fmt->format;
#else
mutex_unlock(&hi556->mutex);
return -ENOTTY;
#endif
} else {
hi556->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(hi556->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(hi556->vblank, vblank_def,
HI556_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&hi556->mutex);
return 0;
}
static int hi556_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct hi556 *hi556 = to_hi556(sd);
const struct hi556_mode *mode = hi556->cur_mode;
mutex_lock(&hi556->mutex);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
fmt->format = *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
#else
mutex_unlock(&hi556->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = HI556_MEDIA_BUS_FMT;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&hi556->mutex);
return 0;
}
static int hi556_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index != 0)
return -EINVAL;
code->code = HI556_MEDIA_BUS_FMT;
return 0;
}
static int hi556_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct hi556 *hi556 = to_hi556(sd);
if (fse->index >= hi556->cfg_num)
return -EINVAL;
if (fse->code != HI556_MEDIA_BUS_FMT)
return -EINVAL;
fse->min_width = supported_modes[fse->index].width;
fse->max_width = supported_modes[fse->index].width;
fse->max_height = supported_modes[fse->index].height;
fse->min_height = supported_modes[fse->index].height;
return 0;
}
static int hi556_enable_test_pattern(struct hi556 *hi556, u32 pattern)
{
if (pattern) {
hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN,
HI556_REG_VALUE_08BIT, HI556_TEST_PATTERN_ENABLE);
hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN_SELECT,
HI556_REG_VALUE_08BIT, 0x01 << (pattern - 1));
} else {
hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN,
HI556_REG_VALUE_08BIT, HI556_TEST_PATTERN_DISABLE);
}
return 0;
}
static int hi556_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct hi556 *hi556 = to_hi556(sd);
const struct hi556_mode *mode = hi556->cur_mode;
fi->interval = mode->max_fps;
return 0;
}
static int hi556_g_mbus_config(struct v4l2_subdev *sd,
unsigned int pad_id,
struct v4l2_mbus_config *config)
{
config->type = V4L2_MBUS_CSI2_DPHY;
config->bus.mipi_csi2.num_data_lanes = HI556_LANES;
return 0;
}
static void hi556_get_module_inf(struct hi556 *hi556,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, HI556_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, hi556->module_name,
sizeof(inf->base.module));
strscpy(inf->base.lens, hi556->len_name, sizeof(inf->base.lens));
}
static void hi556_set_awb_cfg(struct hi556 *hi556,
struct rkmodule_awb_cfg *cfg)
{
mutex_lock(&hi556->mutex);
memcpy(&hi556->awb_cfg, cfg, sizeof(*cfg));
mutex_unlock(&hi556->mutex);
}
static long hi556_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct hi556 *hi556 = to_hi556(sd);
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
hi556_get_module_inf(hi556, (struct rkmodule_inf *)arg);
break;
case RKMODULE_AWB_CFG:
hi556_set_awb_cfg(hi556, (struct rkmodule_awb_cfg *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE,
HI556_REG_VALUE_08BIT, HI556_MODE_STREAMING);
else
ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE,
HI556_REG_VALUE_08BIT, HI556_MODE_SW_STANDBY);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long hi556_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 *awb_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 = hi556_ioctl(sd, cmd, inf);
if (!ret) {
ret = copy_to_user(up, inf, sizeof(*inf));
if (ret)
ret = -EFAULT;
}
kfree(inf);
break;
case RKMODULE_AWB_CFG:
awb_cfg = kzalloc(sizeof(*awb_cfg), GFP_KERNEL);
if (!awb_cfg) {
ret = -ENOMEM;
return ret;
}
if (copy_from_user(awb_cfg, up, sizeof(*awb_cfg))) {
kfree(awb_cfg);
return -EFAULT;
}
ret = hi556_ioctl(sd, cmd, awb_cfg);
kfree(awb_cfg);
break;
case RKMODULE_SET_QUICK_STREAM:
if (copy_from_user(&stream, up, sizeof(u32)))
return -EFAULT;
ret = hi556_ioctl(sd, cmd, &stream);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __hi556_start_stream(struct hi556 *hi556)
{
int ret;
ret = hi556_write_array(hi556->client, hi556->cur_mode->reg_list);
if (ret)
return ret;
#ifdef CHECK_REG_VALUE
usleep_range(10000, 20000);
/* verify default values to make sure everything has */
/* been written correctly as expected */
dev_info(&hi556->client->dev, "%s:Check register value!\n",
__func__);
ret = hi556_reg_verify(hi556->client, hi556_global_regs);
if (ret)
return ret;
ret = hi556_reg_verify(hi556->client, hi556->cur_mode->reg_list);
if (ret)
return ret;
#endif
/* In case these controls are set before streaming */
mutex_unlock(&hi556->mutex);
ret = v4l2_ctrl_handler_setup(&hi556->ctrl_handler);
mutex_lock(&hi556->mutex);
if (ret)
return ret;
if (ret)
dev_info(&hi556->client->dev, "APPly otp failed!\n");
ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE,
HI556_REG_VALUE_08BIT, HI556_MODE_STREAMING);
return ret;
}
static int __hi556_stop_stream(struct hi556 *hi556)
{
return hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE,
HI556_REG_VALUE_08BIT, HI556_MODE_SW_STANDBY);
}
static int hi556_s_stream(struct v4l2_subdev *sd, int on)
{
struct hi556 *hi556 = to_hi556(sd);
struct i2c_client *client = hi556->client;
int ret = 0;
dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
hi556->cur_mode->width,
hi556->cur_mode->height,
DIV_ROUND_CLOSEST(hi556->cur_mode->max_fps.denominator,
hi556->cur_mode->max_fps.numerator));
mutex_lock(&hi556->mutex);
on = !!on;
if (on == hi556->streaming)
goto unlock_and_return;
if (on) {
dev_info(&client->dev, "stream on!!!\n");
ret = pm_runtime_get_sync(&client->dev);
if (ret < 0) {
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
ret = __hi556_start_stream(hi556);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
dev_info(&client->dev, "stream off!!!\n");
__hi556_stop_stream(hi556);
pm_runtime_put(&client->dev);
}
hi556->streaming = on;
unlock_and_return:
mutex_unlock(&hi556->mutex);
return ret;
}
static int hi556_s_power(struct v4l2_subdev *sd, int on)
{
struct hi556 *hi556 = to_hi556(sd);
struct i2c_client *client = hi556->client;
int ret = 0;
dev_info(&client->dev, "%s(%d) on(%d)\n", __func__, __LINE__, on);
mutex_lock(&hi556->mutex);
/* If the power state is not modified - no work to do. */
if (hi556->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 = hi556_write_array(hi556->client, hi556_global_regs);
if (ret) {
v4l2_err(sd, "could not set init registers\n");
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
hi556->power_on = true;
} else {
pm_runtime_put(&client->dev);
hi556->power_on = false;
}
unlock_and_return:
mutex_unlock(&hi556->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 hi556_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, HI556_XVCLK_FREQ / 1000 / 1000);
}
static int __hi556_power_on(struct hi556 *hi556)
{
int ret;
u32 delay_us;
struct device *dev = &hi556->client->dev;
if (!IS_ERR(hi556->power_gpio))
gpiod_set_value_cansleep(hi556->power_gpio, 1);
usleep_range(1000, 2000);
if (!IS_ERR_OR_NULL(hi556->pins_default)) {
ret = pinctrl_select_state(hi556->pinctrl,
hi556->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
ret = clk_set_rate(hi556->xvclk, HI556_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
if (clk_get_rate(hi556->xvclk) != HI556_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(hi556->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
ret = regulator_bulk_enable(HI556_NUM_SUPPLIES, hi556->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(hi556->reset_gpio))
gpiod_set_value_cansleep(hi556->reset_gpio, 1);
if (!IS_ERR(hi556->pwdn_gpio))
gpiod_set_value_cansleep(hi556->pwdn_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = hi556_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
usleep_range(10000, 20000);
return 0;
disable_clk:
clk_disable_unprepare(hi556->xvclk);
return ret;
}
static void __hi556_power_off(struct hi556 *hi556)
{
int ret;
struct device *dev = &hi556->client->dev;
if (!IS_ERR(hi556->pwdn_gpio))
gpiod_set_value_cansleep(hi556->pwdn_gpio, 0);
clk_disable_unprepare(hi556->xvclk);
if (!IS_ERR(hi556->reset_gpio))
gpiod_set_value_cansleep(hi556->reset_gpio, 0);
if (!IS_ERR_OR_NULL(hi556->pins_sleep)) {
ret = pinctrl_select_state(hi556->pinctrl,
hi556->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
if (!IS_ERR(hi556->power_gpio))
gpiod_set_value_cansleep(hi556->power_gpio, 0);
regulator_bulk_disable(HI556_NUM_SUPPLIES, hi556->supplies);
}
static int hi556_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct hi556 *hi556 = to_hi556(sd);
return __hi556_power_on(hi556);
}
static int hi556_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct hi556 *hi556 = to_hi556(sd);
__hi556_power_off(hi556);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int hi556_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct hi556 *hi556 = to_hi556(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->state, 0);
const struct hi556_mode *def_mode = &supported_modes[0];
mutex_lock(&hi556->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = HI556_MEDIA_BUS_FMT;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&hi556->mutex);
/* No crop or compose */
return 0;
}
#endif
static int hi556_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval_enum *fie)
{
struct hi556 *hi556 = to_hi556(sd);
if (fie->index >= hi556->cfg_num)
return -EINVAL;
if (fie->code != HI556_MEDIA_BUS_FMT)
return -EINVAL;
fie->width = supported_modes[fie->index].width;
fie->height = supported_modes[fie->index].height;
fie->interval = supported_modes[fie->index].max_fps;
fie->reserved[0] = supported_modes[fie->index].hdr_mode;
return 0;
}
static const struct dev_pm_ops hi556_pm_ops = {
SET_RUNTIME_PM_OPS(hi556_runtime_suspend,
hi556_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops hi556_internal_ops = {
.open = hi556_open,
};
#endif
static const struct v4l2_subdev_core_ops hi556_core_ops = {
.s_power = hi556_s_power,
.ioctl = hi556_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = hi556_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops hi556_video_ops = {
.s_stream = hi556_s_stream,
.g_frame_interval = hi556_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops hi556_pad_ops = {
.enum_mbus_code = hi556_enum_mbus_code,
.enum_frame_size = hi556_enum_frame_sizes,
.enum_frame_interval = hi556_enum_frame_interval,
.get_fmt = hi556_get_fmt,
.set_fmt = hi556_set_fmt,
.get_mbus_config = hi556_g_mbus_config,
};
static const struct v4l2_subdev_ops hi556_subdev_ops = {
.core = &hi556_core_ops,
.video = &hi556_video_ops,
.pad = &hi556_pad_ops,
};
static int hi556_set_exposure_reg(struct hi556 *hi556, u32 exposure)
{
int ret = 0;
u32 cal_shutter = 0;
cal_shutter = exposure >> 1;
cal_shutter = cal_shutter << 1;
ret = hi556_write_reg(hi556->client, HI556_REG_GROUP,
HI556_REG_VALUE_08BIT, 0x01);
ret |= hi556_write_reg(hi556->client,
HI556_REG_EXPOSURE_H,
HI556_REG_VALUE_08BIT,
HI556_FETCH_HIGH_BYTE_EXP(cal_shutter));
ret |= hi556_write_reg(hi556->client,
HI556_REG_EXPOSURE_M,
HI556_REG_VALUE_08BIT,
HI556_FETCH_MIDDLE_BYTE_EXP(cal_shutter));
ret |= hi556_write_reg(hi556->client,
HI556_REG_EXPOSURE_L,
HI556_REG_VALUE_08BIT,
HI556_FETCH_LOW_BYTE_EXP(cal_shutter));
ret |= hi556_write_reg(hi556->client, HI556_REG_GROUP,
HI556_REG_VALUE_08BIT, 0x00);
return ret;
}
static int hi556_set_gain_reg(struct hi556 *hi556, u32 a_gain)
{
int ret = 0;
ret = hi556_write_reg(hi556->client, HI556_REG_GROUP,
HI556_REG_VALUE_08BIT, 0x01);
ret |= hi556_write_reg(hi556->client, HI556_REG_GAIN,
HI556_REG_VALUE_08BIT, a_gain);
ret |= hi556_write_reg(hi556->client, HI556_REG_GROUP,
HI556_REG_VALUE_08BIT, 0x00);
return ret;
}
static int hi556_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct hi556 *hi556 = container_of(ctrl->handler,
struct hi556, ctrl_handler);
struct i2c_client *client = hi556->client;
s64 max;
u32 val = 0;
int ret = 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 = hi556->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(hi556->exposure,
hi556->exposure->minimum, max,
hi556->exposure->step,
hi556->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
dev_dbg(&client->dev, "set exposure value 0x%x\n", ctrl->val);
/* 4 least significant bits of expsoure are fractional part */
ret = hi556_set_exposure_reg(hi556, ctrl->val);
break;
case V4L2_CID_ANALOGUE_GAIN:
dev_dbg(&client->dev, "set analog gain value 0x%x\n", ctrl->val);
ret = hi556_set_gain_reg(hi556, ctrl->val);
break;
case V4L2_CID_VBLANK:
dev_dbg(&client->dev, "set vb value 0x%x\n", ctrl->val);
ret = hi556_write_reg(hi556->client, HI556_REG_VTS,
HI556_REG_VALUE_16BIT,
ctrl->val + hi556->cur_mode->height);
break;
case V4L2_CID_TEST_PATTERN:
ret = hi556_enable_test_pattern(hi556, ctrl->val);
break;
case V4L2_CID_HFLIP:
ret = hi556_read_reg(hi556->client, HI556_FLIP_MIRROR_REG,
HI556_REG_VALUE_08BIT, &val);
ret |= hi556_write_reg(hi556->client, HI556_FLIP_MIRROR_REG,
HI556_REG_VALUE_08BIT,
HI556_FETCH_MIRROR(val, ctrl->val));
break;
case V4L2_CID_VFLIP:
ret = hi556_read_reg(hi556->client, HI556_FLIP_MIRROR_REG,
HI556_REG_VALUE_08BIT, &val);
ret |= hi556_write_reg(hi556->client, HI556_FLIP_MIRROR_REG,
HI556_REG_VALUE_08BIT,
HI556_FETCH_FLIP(val, ctrl->val));
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 hi556_ctrl_ops = {
.s_ctrl = hi556_set_ctrl,
};
static int hi556_initialize_controls(struct hi556 *hi556)
{
const struct hi556_mode *mode;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl *ctrl;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &hi556->ctrl_handler;
mode = hi556->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 9);
if (ret)
return ret;
handler->lock = &hi556->mutex;
ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
0, 0, link_freq_menu_items);
if (ctrl)
ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, hi556->pixel_rate, 1, hi556->pixel_rate);
h_blank = mode->hts_def - mode->width;
hi556->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (hi556->hblank)
hi556->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
hi556->vblank = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
HI556_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 4;
hi556->exposure = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops,
V4L2_CID_EXPOSURE, HI556_EXPOSURE_MIN,
exposure_max, HI556_EXPOSURE_STEP,
mode->exp_def);
hi556->anal_gain = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
ANALOG_GAIN_DEFAULT);
hi556->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&hi556_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(hi556_test_pattern_menu) - 1,
0, 0, hi556_test_pattern_menu);
v4l2_ctrl_new_std(handler, &hi556_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(handler, &hi556_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
if (handler->error) {
ret = handler->error;
dev_err(&hi556->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
hi556->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int hi556_check_sensor_id(struct hi556 *hi556,
struct i2c_client *client)
{
struct device *dev = &hi556->client->dev;
u32 id = 0;
int ret;
ret = hi556_read_reg(client, HI556_REG_CHIP_ID,
HI556_REG_VALUE_16BIT, &id);
if (id != CHIP_ID) {
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
return -ENODEV;
}
dev_info(dev, "Detected Hi%04x sensor\n", CHIP_ID);
return 0;
}
static int hi556_configure_regulators(struct hi556 *hi556)
{
unsigned int i;
for (i = 0; i < HI556_NUM_SUPPLIES; i++)
hi556->supplies[i].supply = hi556_supply_names[i];
return devm_regulator_bulk_get(&hi556->client->dev,
HI556_NUM_SUPPLIES,
hi556->supplies);
}
static int hi556_parse_of(struct hi556 *hi556)
{
struct device *dev = &hi556->client->dev;
struct device_node *endpoint;
struct fwnode_handle *fwnode;
int rval;
endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
if (!endpoint) {
dev_err(dev, "Failed to get endpoint\n");
return -EINVAL;
}
fwnode = of_fwnode_handle(endpoint);
rval = fwnode_property_read_u32_array(fwnode, "data-lanes", NULL, 0);
if (rval <= 0) {
dev_warn(dev, " Get mipi lane num failed!\n");
return -1;
}
hi556->lane_num = rval;
if (hi556->lane_num == 2) {
hi556->cur_mode = &supported_modes_2lane[0];
supported_modes = supported_modes_2lane;
hi556->cfg_num = ARRAY_SIZE(supported_modes_2lane);
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
hi556->pixel_rate = MIPI_FREQ * 2U * hi556->lane_num / 8U;
dev_info(dev, "lane_num(%d) pixel_rate(%u)\n",
hi556->lane_num, hi556->pixel_rate);
} else {
dev_err(dev, "unsupported lane_num(%d)\n", hi556->lane_num);
return -1;
}
return 0;
}
static int hi556_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct hi556 *hi556;
struct v4l2_subdev *sd;
char facing[2] = "b";
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
hi556 = devm_kzalloc(dev, sizeof(*hi556), GFP_KERNEL);
if (!hi556)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&hi556->module_index);
if (ret) {
dev_warn(dev, "could not get module index!\n");
hi556->module_index = 0;
}
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&hi556->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&hi556->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&hi556->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
hi556->client = client;
hi556->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(hi556->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
hi556->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(hi556->power_gpio))
dev_warn(dev, "Failed to get power-gpios, maybe no use\n");
hi556->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(hi556->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios, maybe no use\n");
hi556->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(hi556->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ret = hi556_configure_regulators(hi556);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
ret = hi556_parse_of(hi556);
if (ret != 0)
return -EINVAL;
hi556->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(hi556->pinctrl)) {
hi556->pins_default =
pinctrl_lookup_state(hi556->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(hi556->pins_default))
dev_err(dev, "could not get default pinstate\n");
hi556->pins_sleep =
pinctrl_lookup_state(hi556->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(hi556->pins_sleep))
dev_err(dev, "could not get sleep pinstate\n");
}
mutex_init(&hi556->mutex);
sd = &hi556->subdev;
v4l2_i2c_subdev_init(sd, client, &hi556_subdev_ops);
ret = hi556_initialize_controls(hi556);
if (ret)
goto err_destroy_mutex;
ret = __hi556_power_on(hi556);
if (ret)
goto err_free_handler;
ret = hi556_check_sensor_id(hi556, client);
if (ret < 0) {
dev_info(&client->dev, "%s(%d) Check id failed\n"
"check following information:\n"
"Power/PowerDown/Reset/Mclk/I2cBus !!\n",
__func__, __LINE__);
goto err_power_off;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &hi556_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
hi556->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &hi556->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(hi556->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
hi556->module_index, facing,
HI556_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev_sensor(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:
__hi556_power_off(hi556);
err_free_handler:
v4l2_ctrl_handler_free(&hi556->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&hi556->mutex);
return ret;
}
static void hi556_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct hi556 *hi556 = to_hi556(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&hi556->ctrl_handler);
mutex_destroy(&hi556->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__hi556_power_off(hi556);
pm_runtime_set_suspended(&client->dev);
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id hi556_of_match[] = {
{ .compatible = "hynix,hi556" },
{},
};
MODULE_DEVICE_TABLE(of, hi556_of_match);
#endif
static const struct i2c_device_id hi556_match_id[] = {
{ "hynix,hi556", 0 },
{ },
};
static struct i2c_driver hi556_i2c_driver = {
.driver = {
.name = HI556_NAME,
.pm = &hi556_pm_ops,
.of_match_table = of_match_ptr(hi556_of_match),
},
.probe = &hi556_probe,
.remove = &hi556_remove,
.id_table = hi556_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&hi556_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&hi556_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("Hynix hi556 sensor driver");
MODULE_LICENSE("GPL v2");
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