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android13/kernel-5.10/drivers/media/i2c/gc4023.c

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// SPDX-License-Identifier: GPL-2.0
/*
* GC4023 driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X01 init version.
* V0.0X02.0X00 update version.
* 1, update init registers setting;
* 2, update gain table;
* 3, update mirror/flip setting;
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <linux/rk-preisp.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <linux/pinctrl/consumer.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x02, 0x00)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define GC4023_LANES 2
#define GC4023_BITS_PER_SAMPLE 10
#define GC4023_LINK_FREQ_LINEAR 351000000 //2560*1440
#define GC4023_PIXEL_RATE_LINEAR (GC4023_LINK_FREQ_LINEAR * 2 / 10 * 2)
#define GC4023_XVCLK_FREQ 27000000
#define CHIP_ID 0x4023
#define GC4023_REG_CHIP_ID_H 0x03f0
#define GC4023_REG_CHIP_ID_L 0x03f1
#define GC4023_REG_CTRL_MODE 0x0100
#define GC4023_MODE_SW_STANDBY 0x00
#define GC4023_MODE_STREAMING 0x09
#define GC4023_REG_EXPOSURE_H 0x0202
#define GC4023_REG_EXPOSURE_L 0x0203
#define GC4023_EXPOSURE_MIN 4
#define GC4023_EXPOSURE_STEP 1
#define GC4023_VTS_MAX 0x7fff
#define GC4023_GAIN_MIN 64
#define GC4023_GAIN_MAX 0xffff
#define GC4023_GAIN_STEP 1
#define GC4023_GAIN_DEFAULT 256
#define GC4023_REG_TEST_PATTERN 0x008c
#define GC4023_TEST_PATTERN_ENABLE 0x11
#define GC4023_TEST_PATTERN_DISABLE 0x0
#define GC4023_REG_VTS_H 0x0340
#define GC4023_REG_VTS_L 0x0341
#define GC4023_OTP_MIRROR_FLIP_REG 0x0a73
#define GC4023_MIRROR_BIT_MASK BIT(0)
#define GC4023_MIRROR_FLIP_REG 0x022c
#define GC4023_FLIP_BIT_MASK BIT(1)
#define REG_DELAY 0xFFFE
#define REG_NULL 0xFFFF
#define GC4023_REG_VALUE_08BIT 1
#define GC4023_REG_VALUE_16BIT 2
#define GC4023_REG_VALUE_24BIT 3
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define OF_CAMERA_HDR_MODE "rockchip,camera-hdr-mode"
#define GC4023_NAME "gc4023"
static const char * const gc4023_supply_names[] = {
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
"avdd", /* Analog power */
};
#define GC4023_NUM_SUPPLIES ARRAY_SIZE(gc4023_supply_names)
struct regval {
u16 addr;
u8 val;
};
struct gc4023_mode {
u32 bus_fmt;
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;
u32 vc[PAD_MAX];
};
struct gc4023 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct gpio_desc *pwren_gpio;
struct regulator_bulk_data supplies[GC4023_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 *pixel_rate;
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *h_flip;
struct v4l2_ctrl *v_flip;
struct v4l2_ctrl *test_pattern;
struct mutex mutex;
bool streaming;
bool power_on;
const struct gc4023_mode *cur_mode;
u32 cfg_num;
u32 module_index;
u32 cur_vts;
u32 cur_pixel_rate;
u32 cur_link_freq;
struct preisp_hdrae_exp_s init_hdrae_exp;
const char *module_facing;
const char *module_name;
const char *len_name;
bool has_init_exp;
};
#define to_gc4023(sd) container_of(sd, struct gc4023, subdev)
/*
* Xclk 24Mhz
*/
static const struct regval gc4023_global_regs[] = {
{REG_NULL, 0x00},
};
static const u32 reg_val_table_liner[26][7] = {
// 614 615 218 1467 1468 b8 b9
{0x00, 0x00, 0x00, 0x0D, 0x15, 0x01, 0x00},
{0x80, 0x02, 0x00, 0x0D, 0x15, 0x01, 0x0B},
{0x01, 0x00, 0x00, 0x0D, 0x15, 0x01, 0x19},
{0x81, 0x02, 0x00, 0x0E, 0x16, 0x01, 0x2A},
{0x02, 0x00, 0x00, 0x0E, 0x16, 0x02, 0x00},
{0x82, 0x02, 0x00, 0x0F, 0x17, 0x02, 0x17},
{0x03, 0x00, 0x00, 0x10, 0x18, 0x02, 0x33},
{0x83, 0x02, 0x00, 0x11, 0x19, 0x03, 0x14},
{0x04, 0x00, 0x00, 0x12, 0x1a, 0x04, 0x00},
{0x80, 0x02, 0x20, 0x13, 0x1b, 0x04, 0x2F},
{0x01, 0x00, 0x20, 0x14, 0x1c, 0x05, 0x26},
{0x81, 0x02, 0x20, 0x15, 0x1d, 0x06, 0x28},
{0x02, 0x00, 0x20, 0x16, 0x1e, 0x08, 0x00},
{0x82, 0x02, 0x20, 0x16, 0x1e, 0x09, 0x1E},
{0x03, 0x00, 0x20, 0x18, 0x20, 0x0B, 0x0C},
{0x83, 0x02, 0x20, 0x18, 0x20, 0x0D, 0x11},
{0x04, 0x00, 0x20, 0x18, 0x20, 0x10, 0x00},
{0x84, 0x02, 0x20, 0x19, 0x21, 0x12, 0x3D},
{0x05, 0x00, 0x20, 0x19, 0x21, 0x16, 0x19},
{0x85, 0x02, 0x20, 0x1A, 0x22, 0x1A, 0x22},
{0xb5, 0x04, 0x20, 0x1B, 0x23, 0x20, 0x00},
{0x85, 0x05, 0x20, 0x1B, 0x23, 0x25, 0x3A},
{0x05, 0x08, 0x20, 0x1C, 0x24, 0x2C, 0x33},
{0x45, 0x09, 0x20, 0x1D, 0x25, 0x35, 0x05},
{0x55, 0x0a, 0x20, 0x1F, 0x27, 0x40, 0x00},
};
static const u32 gain_level_table[26] = {
64,
76,
90,
106,
128,
152,
179,
212,
256,
303,
358,
425,
512,
607,
717,
849,
1024,
1213,
1434,
1699,
2048,
2427,
2867,
3398,
4096,
0xffff,
};
/*
* Xclk 27Mhz
* max_framerate 30fps
* mipi_datarate per lane 864Mbps, 2lane
*/
static const struct regval gc4023_linear10bit_2560x1440_regs[] = {
{0x03fe, 0xf0},
{0x03fe, 0x00},
{0x03fe, 0x10},
{0x03fe, 0x00},
{0x0a38, 0x00},
{0x0a38, 0x01},
{0x0a20, 0x07},
{0x061c, 0x50},
{0x061d, 0x22},
{0x061e, 0x78},
{0x061f, 0x06},
{0x0a21, 0x10},
{0x0a34, 0x40},
{0x0a35, 0x01},
{0x0a36, 0x4e},
{0x0a37, 0x06},
{0x0314, 0x50},
{0x0315, 0x00},
{0x031c, 0xce},
{0x0219, 0x47},
{0x0342, 0x04},
{0x0343, 0xb0},
{0x0259, 0x05},
{0x025a, 0xa0},
{0x0340, 0x05},
{0x0341, 0xdc},
{0x0347, 0x02},
{0x0348, 0x0a},
{0x0349, 0x08},
{0x034a, 0x05},
{0x034b, 0xa8},
{0x0094, 0x0a},
{0x0095, 0x00},
{0x0096, 0x05},
{0x0097, 0xa0},
{0x0099, 0x04},
{0x009b, 0x04},
{0x060c, 0x01},
{0x060e, 0x08},
{0x060f, 0x05},
{0x070c, 0x01},
{0x070e, 0x08},
{0x070f, 0x05},
{0x0909, 0x03},
{0x0902, 0x04},
{0x0904, 0x0b},
{0x0907, 0x54},
{0x0908, 0x06},
{0x0903, 0x9d},
{0x072a, 0x18},
{0x0724, 0x0a},
{0x0727, 0x0a},
{0x072a, 0x1c},
{0x072b, 0x0a},
{0x1466, 0x10},
{0x1468, 0x0b},
{0x1467, 0x13},
{0x1469, 0x80},
{0x146a, 0xe8},
{0x0707, 0x07},
{0x0737, 0x0f},
{0x0704, 0x01},
{0x0706, 0x03},
{0x0716, 0x03},
{0x0708, 0xc8},
{0x0718, 0xc8},
{0x061a, 0x00},
{0x1430, 0x80},
{0x1407, 0x10},
{0x1408, 0x16},
{0x1409, 0x03},
{0x146d, 0x0e},
{0x146e, 0x42},
{0x146f, 0x43},
{0x1470, 0x3c},
{0x1471, 0x3d},
{0x1472, 0x3a},
{0x1473, 0x3a},
{0x1474, 0x40},
{0x1475, 0x46},
{0x1420, 0x14},
{0x1464, 0x15},
{0x146c, 0x40},
{0x146d, 0x40},
{0x1423, 0x08},
{0x1428, 0x10},
{0x1462, 0x18},
{0x02ce, 0x04},
{0x143a, 0x0f},
{0x142b, 0x88},
{0x0245, 0xc9},
{0x023a, 0x08},
{0x02cd, 0x99},
{0x0612, 0x02},
{0x0613, 0xc7},
{0x0243, 0x03},
{0x021b, 0x09},
{0x0089, 0x03},
{0x0040, 0xa3},
{0x0075, 0x64},
{0x0004, 0x0f},
{0x0002, 0xab},
{0x0053, 0x0a},
{0x0205, 0x0c},
{0x0202, 0x06},
{0x0203, 0x27},
{0x0614, 0x00},
{0x0615, 0x00},
{0x0181, 0x0c},
{0x0182, 0x05},
{0x0185, 0x01},
{0x0180, 0x46},
{0x0100, 0x08},
{0x0106, 0x38},
{0x010d, 0x80},
{0x010e, 0x0c},
{0x0113, 0x02},
{0x0114, 0x01},
{0x0115, 0x10},
{0x022c, 0x00},
//{0x0100, 0x09},
{0x0a67, 0x80},
{0x0a54, 0x0e},
{0x0a65, 0x10},
{0x0a98, 0x10},
{0x05be, 0x00},
{0x05a9, 0x01},
{0x0029, 0x08},
{0x002b, 0xa8},
{0x0a83, 0xe0},
{0x0a72, 0x02},
{0x0a73, 0x60},
{0x0a75, 0x41},
{0x0a70, 0x03},
{0x0a5a, 0x80},
{REG_DELAY, 0x14},
{0x05be, 0x01},
{0x0a70, 0x00},
{0x0080, 0x02},
{0x0a67, 0x00},
{REG_NULL, 0x00},
};
static const struct gc4023_mode supported_modes[] = {
{
.width = 2560,
.height = 1440,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0100,
.hts_def = 0x0AA0,
.vts_def = 0x05DC,
.bus_fmt = MEDIA_BUS_FMT_SRGGB10_1X10,
.reg_list = gc4023_linear10bit_2560x1440_regs,
.hdr_mode = NO_HDR,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
},
};
static const s64 link_freq_menu_items[] = {
GC4023_LINK_FREQ_LINEAR,
};
static const char * const gc4023_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
"Vertical Color Bar Type 2",
"Vertical Color Bar Type 3",
"Vertical Color Bar Type 4"
};
/* Write registers up to 4 at a time */
static int gc4023_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;
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)
return -EIO;
return 0;
}
static int gc4023_write_array(struct i2c_client *client,
const struct regval *regs)
{
u32 i;
int ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) {
if (regs[i].addr == REG_DELAY)
usleep_range(regs[i].val * 1000, regs[i].val * 2 * 1000);
else
ret = gc4023_write_reg(client, regs[i].addr,
GC4023_REG_VALUE_08BIT, regs[i].val);
}
return ret;
}
/* Read registers up to 4 at a time */
static int gc4023_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;
}
static int gc4023_get_reso_dist(const struct gc4023_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct gc4023_mode *
gc4023_find_best_fit(struct gc4023 *gc4023, 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 < gc4023->cfg_num; i++) {
dist = gc4023_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 gc4023_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc4023 *gc4023 = to_gc4023(sd);
const struct gc4023_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&gc4023->mutex);
mode = gc4023_find_best_fit(gc4023, fmt);
fmt->format.code = mode->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, cfg, fmt->pad) = fmt->format;
#else
mutex_unlock(&gc4023->mutex);
return -ENOTTY;
#endif
} else {
gc4023->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(gc4023->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(gc4023->vblank, vblank_def,
GC4023_VTS_MAX - mode->height,
1, vblank_def);
gc4023->cur_link_freq = 0;
gc4023->cur_pixel_rate = GC4023_PIXEL_RATE_LINEAR;
__v4l2_ctrl_s_ctrl_int64(gc4023->pixel_rate,
gc4023->cur_pixel_rate);
__v4l2_ctrl_s_ctrl(gc4023->link_freq,
gc4023->cur_link_freq);
gc4023->cur_vts = mode->vts_def;
}
mutex_unlock(&gc4023->mutex);
return 0;
}
static int gc4023_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct gc4023 *gc4023 = to_gc4023(sd);
const struct gc4023_mode *mode = gc4023->cur_mode;
mutex_lock(&gc4023->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(&gc4023->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = mode->bus_fmt;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&gc4023->mutex);
return 0;
}
static int gc4023_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct gc4023 *gc4023 = to_gc4023(sd);
if (code->index != 0)
return -EINVAL;
code->code = gc4023->cur_mode->bus_fmt;
return 0;
}
static int gc4023_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct gc4023 *gc4023 = to_gc4023(sd);
if (fse->index >= gc4023->cfg_num)
return -EINVAL;
if (fse->code != supported_modes[0].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 gc4023_enable_test_pattern(struct gc4023 *gc4023, u32 pattern)
{
u32 val;
if (pattern)
val = GC4023_TEST_PATTERN_ENABLE;
else
val = GC4023_TEST_PATTERN_DISABLE;
return gc4023_write_reg(gc4023->client, GC4023_REG_TEST_PATTERN,
GC4023_REG_VALUE_08BIT, val);
}
static int gc4023_set_gain_reg(struct gc4023 *gc4023, u32 gain)
{
int i;
int total;
u32 tol_dig_gain = 0;
if (gain < 64)
gain = 64;
total = ARRAY_SIZE(gain_level_table) - 1;
for (i = 0; i < total; i++) {
if (gain_level_table[i] <= gain &&
gain < gain_level_table[i + 1])
break;
}
tol_dig_gain = gain * 64 / gain_level_table[i];
gc4023_write_reg(gc4023->client, 0x614,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][0]);
gc4023_write_reg(gc4023->client, 0x615,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][1]);
gc4023_write_reg(gc4023->client, 0x218,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][2]);
gc4023_write_reg(gc4023->client, 0x1467,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][3]);
gc4023_write_reg(gc4023->client, 0x1468,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][4]);
gc4023_write_reg(gc4023->client, 0xb8,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][5]);
gc4023_write_reg(gc4023->client, 0xb9,
GC4023_REG_VALUE_08BIT, reg_val_table_liner[i][6]);
gc4023_write_reg(gc4023->client, 0x64,
GC4023_REG_VALUE_08BIT, (tol_dig_gain >> 6));
gc4023_write_reg(gc4023->client, 0x65,
GC4023_REG_VALUE_08BIT, ((tol_dig_gain & 0x3f) << 2));
return 0;
}
static int gc4023_set_mirror_flip(struct gc4023 *gc4023, u8 val, u8 otp_val)
{
int ret = 0;
ret = gc4023_write_reg(gc4023->client, 0x022c,
GC4023_REG_VALUE_08BIT, val);
ret |= gc4023_write_reg(gc4023->client, 0x0a67,
GC4023_REG_VALUE_08BIT, 0x80);
ret |= gc4023_write_reg(gc4023->client, 0x0a54,
GC4023_REG_VALUE_08BIT, 0x0e);
ret |= gc4023_write_reg(gc4023->client, 0x0a65,
GC4023_REG_VALUE_08BIT, 0x10);
ret |= gc4023_write_reg(gc4023->client, 0x0a98,
GC4023_REG_VALUE_08BIT, 0x10);
ret |= gc4023_write_reg(gc4023->client, 0x05be,
GC4023_REG_VALUE_08BIT, 0x00);
ret |= gc4023_write_reg(gc4023->client, 0x05a9,
GC4023_REG_VALUE_08BIT, 0x01);
ret |= gc4023_write_reg(gc4023->client, 0x0029,
GC4023_REG_VALUE_08BIT, 0x08);
ret |= gc4023_write_reg(gc4023->client, 0x002b,
GC4023_REG_VALUE_08BIT, 0xa8);
ret |= gc4023_write_reg(gc4023->client, 0x0a83,
GC4023_REG_VALUE_08BIT, 0xe0);
ret |= gc4023_write_reg(gc4023->client, 0x0a72,
GC4023_REG_VALUE_08BIT, 0x02);
ret |= gc4023_write_reg(gc4023->client, 0x0a73,
GC4023_REG_VALUE_08BIT, otp_val);
ret |= gc4023_write_reg(gc4023->client, 0x0a75,
GC4023_REG_VALUE_08BIT, 0x41);
ret |= gc4023_write_reg(gc4023->client, 0x0a70,
GC4023_REG_VALUE_08BIT, 0x03);
ret |= gc4023_write_reg(gc4023->client, 0x0a5a,
GC4023_REG_VALUE_08BIT, 0x80);
usleep_range(20 * 1000, 30 * 1000);
ret |= gc4023_write_reg(gc4023->client, 0x05be,
GC4023_REG_VALUE_08BIT, 0x01);
ret |= gc4023_write_reg(gc4023->client, 0x0a70,
GC4023_REG_VALUE_08BIT, 0x00);
ret |= gc4023_write_reg(gc4023->client, 0x0080,
GC4023_REG_VALUE_08BIT, 0x02);
ret |= gc4023_write_reg(gc4023->client, 0x0a67,
GC4023_REG_VALUE_08BIT, 0x00);
return ret;
}
static int gc4023_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct gc4023 *gc4023 = to_gc4023(sd);
const struct gc4023_mode *mode = gc4023->cur_mode;
fi->interval = mode->max_fps;
return 0;
}
static int gc4023_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
struct v4l2_mbus_config *config)
{
struct gc4023 *gc4023 = to_gc4023(sd);
const struct gc4023_mode *mode = gc4023->cur_mode;
u32 val = 0;
if (mode->hdr_mode == NO_HDR)
val = 1 << (GC4023_LANES - 1) |
V4L2_MBUS_CSI2_CHANNEL_0 |
V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
if (mode->hdr_mode == HDR_X2)
val = 1 << (GC4023_LANES - 1) |
V4L2_MBUS_CSI2_CHANNEL_0 |
V4L2_MBUS_CSI2_CONTINUOUS_CLOCK |
V4L2_MBUS_CSI2_CHANNEL_1;
config->type = V4L2_MBUS_CSI2_DPHY;
config->flags = val;
return 0;
}
static void gc4023_get_module_inf(struct gc4023 *gc4023,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, GC4023_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, gc4023->module_name,
sizeof(inf->base.module));
strscpy(inf->base.lens, gc4023->len_name, sizeof(inf->base.lens));
}
static int gc4023_get_channel_info(struct gc4023 *gc4023, struct rkmodule_channel_info *ch_info)
{
if (ch_info->index < PAD0 || ch_info->index >= PAD_MAX)
return -EINVAL;
ch_info->vc = gc4023->cur_mode->vc[ch_info->index];
ch_info->width = gc4023->cur_mode->width;
ch_info->height = gc4023->cur_mode->height;
ch_info->bus_fmt = gc4023->cur_mode->bus_fmt;
return 0;
}
static long gc4023_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct gc4023 *gc4023 = to_gc4023(sd);
struct rkmodule_hdr_cfg *hdr;
u32 i, h, w;
long ret = 0;
u32 stream = 0;
struct rkmodule_channel_info *ch_info;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
gc4023_get_module_inf(gc4023, (struct rkmodule_inf *)arg);
break;
case RKMODULE_GET_HDR_CFG:
hdr = (struct rkmodule_hdr_cfg *)arg;
hdr->esp.mode = HDR_NORMAL_VC;
hdr->hdr_mode = gc4023->cur_mode->hdr_mode;
break;
case RKMODULE_SET_HDR_CFG:
hdr = (struct rkmodule_hdr_cfg *)arg;
w = gc4023->cur_mode->width;
h = gc4023->cur_mode->height;
for (i = 0; i < gc4023->cfg_num; i++) {
if (w == supported_modes[i].width &&
h == supported_modes[i].height &&
supported_modes[i].hdr_mode == hdr->hdr_mode) {
gc4023->cur_mode = &supported_modes[i];
break;
}
}
if (i == gc4023->cfg_num) {
dev_err(&gc4023->client->dev,
"not find hdr mode:%d %dx%d config\n",
hdr->hdr_mode, w, h);
ret = -EINVAL;
} else {
w = gc4023->cur_mode->hts_def -
gc4023->cur_mode->width;
h = gc4023->cur_mode->vts_def -
gc4023->cur_mode->height;
__v4l2_ctrl_modify_range(gc4023->hblank, w, w, 1, w);
__v4l2_ctrl_modify_range(gc4023->vblank, h,
GC4023_VTS_MAX -
gc4023->cur_mode->height,
1, h);
gc4023->cur_link_freq = 0;
gc4023->cur_pixel_rate = GC4023_PIXEL_RATE_LINEAR;
__v4l2_ctrl_s_ctrl_int64(gc4023->pixel_rate,
gc4023->cur_pixel_rate);
__v4l2_ctrl_s_ctrl(gc4023->link_freq,
gc4023->cur_link_freq);
gc4023->cur_vts = gc4023->cur_mode->vts_def;
}
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = gc4023_write_reg(gc4023->client, GC4023_REG_CTRL_MODE,
GC4023_REG_VALUE_08BIT, GC4023_MODE_STREAMING);
else
ret = gc4023_write_reg(gc4023->client, GC4023_REG_CTRL_MODE,
GC4023_REG_VALUE_08BIT, GC4023_MODE_SW_STANDBY);
break;
case RKMODULE_GET_CHANNEL_INFO:
ch_info = (struct rkmodule_channel_info *)arg;
ret = gc4023_get_channel_info(gc4023, ch_info);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long gc4023_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
struct rkmodule_hdr_cfg *hdr;
long ret;
u32 stream = 0;
struct rkmodule_channel_info *ch_info;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = gc4023_ioctl(sd, cmd, inf);
if (!ret) {
ret = copy_to_user(up, inf, sizeof(*inf));
if (ret)
ret = -EFAULT;
}
kfree(inf);
break;
case RKMODULE_GET_HDR_CFG:
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
if (!hdr) {
ret = -ENOMEM;
return ret;
}
ret = gc4023_ioctl(sd, cmd, hdr);
if (!ret) {
ret = copy_to_user(up, hdr, sizeof(*hdr));
if (ret)
ret = -EFAULT;
}
kfree(hdr);
break;
case RKMODULE_SET_HDR_CFG:
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
if (!hdr) {
ret = -ENOMEM;
return ret;
}
ret = copy_from_user(hdr, up, sizeof(*hdr));
if (!ret)
ret = gc4023_ioctl(sd, cmd, hdr);
else
ret = -EFAULT;
kfree(hdr);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = gc4023_ioctl(sd, cmd, &stream);
else
ret = -EFAULT;
break;
case RKMODULE_GET_CHANNEL_INFO:
ch_info = kzalloc(sizeof(*ch_info), GFP_KERNEL);
if (!ch_info) {
ret = -ENOMEM;
return ret;
}
ret = gc4023_ioctl(sd, cmd, ch_info);
if (!ret) {
ret = copy_to_user(up, ch_info, sizeof(*ch_info));
if (ret)
ret = -EFAULT;
}
kfree(ch_info);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __gc4023_start_stream(struct gc4023 *gc4023)
{
int ret;
ret = gc4023_write_array(gc4023->client, gc4023->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
ret = __v4l2_ctrl_handler_setup(&gc4023->ctrl_handler);
if (gc4023->has_init_exp && gc4023->cur_mode->hdr_mode != NO_HDR) {
ret = gc4023_ioctl(&gc4023->subdev, PREISP_CMD_SET_HDRAE_EXP,
&gc4023->init_hdrae_exp);
if (ret) {
dev_err(&gc4023->client->dev,
"init exp fail in hdr mode\n");
return ret;
}
}
if (ret)
return ret;
ret |= gc4023_write_reg(gc4023->client, GC4023_REG_CTRL_MODE,
GC4023_REG_VALUE_08BIT, GC4023_MODE_STREAMING);
return ret;
}
static int __gc4023_stop_stream(struct gc4023 *gc4023)
{
gc4023->has_init_exp = false;
return gc4023_write_reg(gc4023->client, GC4023_REG_CTRL_MODE,
GC4023_REG_VALUE_08BIT, GC4023_MODE_SW_STANDBY);
}
static int gc4023_s_stream(struct v4l2_subdev *sd, int on)
{
struct gc4023 *gc4023 = to_gc4023(sd);
struct i2c_client *client = gc4023->client;
int ret = 0;
mutex_lock(&gc4023->mutex);
on = !!on;
if (on == gc4023->streaming)
goto unlock_and_return;
if (on) {
ret = pm_runtime_get_sync(&client->dev);
if (ret < 0) {
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
ret = __gc4023_start_stream(gc4023);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__gc4023_stop_stream(gc4023);
pm_runtime_put(&client->dev);
}
gc4023->streaming = on;
unlock_and_return:
mutex_unlock(&gc4023->mutex);
return ret;
}
static int gc4023_s_power(struct v4l2_subdev *sd, int on)
{
struct gc4023 *gc4023 = to_gc4023(sd);
struct i2c_client *client = gc4023->client;
int ret = 0;
mutex_lock(&gc4023->mutex);
/* If the power state is not modified - no work to do. */
if (gc4023->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 = gc4023_write_array(gc4023->client, gc4023_global_regs);
if (ret) {
v4l2_err(sd, "could not set init registers\n");
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
gc4023->power_on = true;
} else {
pm_runtime_put(&client->dev);
gc4023->power_on = false;
}
unlock_and_return:
mutex_unlock(&gc4023->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 gc4023_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, GC4023_XVCLK_FREQ / 1000 / 1000);
}
static int __gc4023_power_on(struct gc4023 *gc4023)
{
int ret;
u32 delay_us;
struct device *dev = &gc4023->client->dev;
if (!IS_ERR_OR_NULL(gc4023->pins_default)) {
ret = pinctrl_select_state(gc4023->pinctrl,
gc4023->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
ret = clk_set_rate(gc4023->xvclk, GC4023_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
if (clk_get_rate(gc4023->xvclk) != GC4023_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(gc4023->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(gc4023->reset_gpio))
gpiod_set_value_cansleep(gc4023->reset_gpio, 0);
if (!IS_ERR(gc4023->pwdn_gpio))
gpiod_set_value_cansleep(gc4023->pwdn_gpio, 0);
usleep_range(500, 1000);
ret = regulator_bulk_enable(GC4023_NUM_SUPPLIES, gc4023->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(gc4023->pwren_gpio))
gpiod_set_value_cansleep(gc4023->pwren_gpio, 1);
usleep_range(1000, 1100);
if (!IS_ERR(gc4023->pwdn_gpio))
gpiod_set_value_cansleep(gc4023->pwdn_gpio, 1);
usleep_range(100, 150);
if (!IS_ERR(gc4023->reset_gpio))
gpiod_set_value_cansleep(gc4023->reset_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = gc4023_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(gc4023->xvclk);
return ret;
}
static void __gc4023_power_off(struct gc4023 *gc4023)
{
int ret;
struct device *dev = &gc4023->client->dev;
if (!IS_ERR(gc4023->pwdn_gpio))
gpiod_set_value_cansleep(gc4023->pwdn_gpio, 0);
clk_disable_unprepare(gc4023->xvclk);
if (!IS_ERR(gc4023->reset_gpio))
gpiod_set_value_cansleep(gc4023->reset_gpio, 0);
if (!IS_ERR_OR_NULL(gc4023->pins_sleep)) {
ret = pinctrl_select_state(gc4023->pinctrl,
gc4023->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
regulator_bulk_disable(GC4023_NUM_SUPPLIES, gc4023->supplies);
if (!IS_ERR(gc4023->pwren_gpio))
gpiod_set_value_cansleep(gc4023->pwren_gpio, 0);
}
static int gc4023_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc4023 *gc4023 = to_gc4023(sd);
return __gc4023_power_on(gc4023);
}
static int gc4023_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc4023 *gc4023 = to_gc4023(sd);
__gc4023_power_off(gc4023);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc4023_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct gc4023 *gc4023 = to_gc4023(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct gc4023_mode *def_mode = &supported_modes[0];
mutex_lock(&gc4023->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = def_mode->bus_fmt;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&gc4023->mutex);
/* No crop or compose */
return 0;
}
#endif
static int gc4023_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
struct gc4023 *gc4023 = to_gc4023(sd);
if (fie->index >= gc4023->cfg_num)
return -EINVAL;
fie->code = supported_modes[fie->index].bus_fmt;
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;
}
#define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4)
#define DST_WIDTH 2560
#define DST_HEIGHT 1440
/*
* The resolution of the driver configuration needs to be exactly
* the same as the current output resolution of the sensor,
* the input width of the isp needs to be 16 aligned,
* the input height of the isp needs to be 8 aligned.
* Can be cropped to standard resolution by this function,
* otherwise it will crop out strange resolution according
* to the alignment rules.
*/
static int gc4023_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct gc4023 *gc4023 = to_gc4023(sd);
if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {
sel->r.left = CROP_START(gc4023->cur_mode->width, DST_WIDTH);
sel->r.width = DST_WIDTH;
sel->r.top = CROP_START(gc4023->cur_mode->height, DST_HEIGHT);
sel->r.height = DST_HEIGHT;
return 0;
}
return -EINVAL;
}
static const struct dev_pm_ops gc4023_pm_ops = {
SET_RUNTIME_PM_OPS(gc4023_runtime_suspend,
gc4023_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops gc4023_internal_ops = {
.open = gc4023_open,
};
#endif
static const struct v4l2_subdev_core_ops gc4023_core_ops = {
.s_power = gc4023_s_power,
.ioctl = gc4023_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = gc4023_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops gc4023_video_ops = {
.s_stream = gc4023_s_stream,
.g_frame_interval = gc4023_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops gc4023_pad_ops = {
.enum_mbus_code = gc4023_enum_mbus_code,
.enum_frame_size = gc4023_enum_frame_sizes,
.enum_frame_interval = gc4023_enum_frame_interval,
.get_fmt = gc4023_get_fmt,
.set_fmt = gc4023_set_fmt,
.get_selection = gc4023_get_selection,
.get_mbus_config = gc4023_g_mbus_config,
};
static const struct v4l2_subdev_ops gc4023_subdev_ops = {
.core = &gc4023_core_ops,
.video = &gc4023_video_ops,
.pad = &gc4023_pad_ops,
};
static int gc4023_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct gc4023 *gc4023 = container_of(ctrl->handler,
struct gc4023, ctrl_handler);
struct i2c_client *client = gc4023->client;
s64 max;
int ret = 0;
int mirror = 0, flip = 0;
int otp_mirror = 0, otp_flip = 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 = gc4023->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(gc4023->exposure,
gc4023->exposure->minimum,
max,
gc4023->exposure->step,
gc4023->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
/* 4 least significant bits of expsoure are fractional part */
ret = gc4023_write_reg(gc4023->client, GC4023_REG_EXPOSURE_H,
GC4023_REG_VALUE_08BIT,
ctrl->val >> 8);
ret |= gc4023_write_reg(gc4023->client, GC4023_REG_EXPOSURE_L,
GC4023_REG_VALUE_08BIT,
ctrl->val & 0xff);
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = gc4023_set_gain_reg(gc4023, ctrl->val);
break;
case V4L2_CID_VBLANK:
gc4023->cur_vts = ctrl->val + gc4023->cur_mode->height;
ret = gc4023_write_reg(gc4023->client, GC4023_REG_VTS_H,
GC4023_REG_VALUE_08BIT,
gc4023->cur_vts >> 8);
ret |= gc4023_write_reg(gc4023->client, GC4023_REG_VTS_L,
GC4023_REG_VALUE_08BIT,
gc4023->cur_vts & 0xff);
break;
case V4L2_CID_TEST_PATTERN:
ret = gc4023_enable_test_pattern(gc4023, ctrl->val);
break;
case V4L2_CID_HFLIP:
ret = gc4023_read_reg(gc4023->client, GC4023_MIRROR_FLIP_REG,
GC4023_REG_VALUE_08BIT, &mirror);
ret |= gc4023_read_reg(gc4023->client, GC4023_OTP_MIRROR_FLIP_REG,
GC4023_REG_VALUE_08BIT, &otp_mirror);
if (ctrl->val) {
mirror |= GC4023_MIRROR_BIT_MASK;
otp_mirror |= GC4023_MIRROR_BIT_MASK;
} else {
mirror &= ~GC4023_MIRROR_BIT_MASK;
otp_mirror &= ~GC4023_MIRROR_BIT_MASK;
}
ret |= gc4023_set_mirror_flip(gc4023, mirror, otp_mirror);
break;
case V4L2_CID_VFLIP:
ret = gc4023_read_reg(gc4023->client, GC4023_MIRROR_FLIP_REG,
GC4023_REG_VALUE_08BIT, &flip);
ret |= gc4023_read_reg(gc4023->client, GC4023_OTP_MIRROR_FLIP_REG,
GC4023_REG_VALUE_08BIT, &otp_flip);
if (ctrl->val) {
flip |= GC4023_FLIP_BIT_MASK;
otp_flip |= GC4023_FLIP_BIT_MASK;
} else {
flip &= ~GC4023_FLIP_BIT_MASK;
otp_flip &= ~GC4023_FLIP_BIT_MASK;
}
ret |= gc4023_set_mirror_flip(gc4023, flip, otp_flip);
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 gc4023_ctrl_ops = {
.s_ctrl = gc4023_set_ctrl,
};
static int gc4023_initialize_controls(struct gc4023 *gc4023)
{
const struct gc4023_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &gc4023->ctrl_handler;
mode = gc4023->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 9);
if (ret)
return ret;
handler->lock = &gc4023->mutex;
gc4023->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
1, 0, link_freq_menu_items);
gc4023->cur_link_freq = 0;
gc4023->cur_pixel_rate = GC4023_PIXEL_RATE_LINEAR;
__v4l2_ctrl_s_ctrl(gc4023->link_freq,
gc4023->cur_link_freq);
gc4023->pixel_rate = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, GC4023_PIXEL_RATE_LINEAR, 1, GC4023_PIXEL_RATE_LINEAR);
h_blank = mode->hts_def - mode->width;
gc4023->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (gc4023->hblank)
gc4023->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
gc4023->cur_vts = mode->vts_def;
gc4023->vblank = v4l2_ctrl_new_std(handler, &gc4023_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
GC4023_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 4;
gc4023->exposure = v4l2_ctrl_new_std(handler, &gc4023_ctrl_ops,
V4L2_CID_EXPOSURE,
GC4023_EXPOSURE_MIN,
exposure_max,
GC4023_EXPOSURE_STEP,
mode->exp_def);
gc4023->anal_gain = v4l2_ctrl_new_std(handler, &gc4023_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN,
GC4023_GAIN_MIN,
GC4023_GAIN_MAX,
GC4023_GAIN_STEP,
GC4023_GAIN_DEFAULT);
gc4023->test_pattern =
v4l2_ctrl_new_std_menu_items(handler,
&gc4023_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(gc4023_test_pattern_menu) - 1,
0, 0, gc4023_test_pattern_menu);
gc4023->h_flip = v4l2_ctrl_new_std(handler, &gc4023_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
gc4023->v_flip = v4l2_ctrl_new_std(handler, &gc4023_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
if (handler->error) {
ret = handler->error;
dev_err(&gc4023->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
gc4023->subdev.ctrl_handler = handler;
gc4023->has_init_exp = false;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int gc4023_check_sensor_id(struct gc4023 *gc4023,
struct i2c_client *client)
{
struct device *dev = &gc4023->client->dev;
u16 id = 0;
u32 reg_H = 0;
u32 reg_L = 0;
int ret;
ret = gc4023_read_reg(client, GC4023_REG_CHIP_ID_H,
GC4023_REG_VALUE_08BIT, &reg_H);
ret |= gc4023_read_reg(client, GC4023_REG_CHIP_ID_L,
GC4023_REG_VALUE_08BIT, &reg_L);
id = ((reg_H << 8) & 0xff00) | (reg_L & 0xff);
if (!(reg_H == (CHIP_ID >> 8) || reg_L == (CHIP_ID & 0xff))) {
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
return -ENODEV;
}
dev_info(dev, "detected gc%04x sensor\n", id);
return 0;
}
static int gc4023_configure_regulators(struct gc4023 *gc4023)
{
unsigned int i;
for (i = 0; i < GC4023_NUM_SUPPLIES; i++)
gc4023->supplies[i].supply = gc4023_supply_names[i];
return devm_regulator_bulk_get(&gc4023->client->dev,
GC4023_NUM_SUPPLIES,
gc4023->supplies);
}
static int gc4023_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct gc4023 *gc4023;
struct v4l2_subdev *sd;
char facing[2];
int ret;
u32 i, hdr_mode = 0;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
gc4023 = devm_kzalloc(dev, sizeof(*gc4023), GFP_KERNEL);
if (!gc4023)
return -ENOMEM;
of_property_read_u32(node, OF_CAMERA_HDR_MODE, &hdr_mode);
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&gc4023->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&gc4023->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&gc4023->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&gc4023->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
gc4023->client = client;
gc4023->cfg_num = ARRAY_SIZE(supported_modes);
for (i = 0; i < gc4023->cfg_num; i++) {
if (hdr_mode == supported_modes[i].hdr_mode) {
gc4023->cur_mode = &supported_modes[i];
break;
}
}
if (i == gc4023->cfg_num)
gc4023->cur_mode = &supported_modes[0];
gc4023->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(gc4023->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
gc4023->pwren_gpio = devm_gpiod_get(dev, "pwren", GPIOD_OUT_LOW);
if (IS_ERR(gc4023->pwren_gpio))
dev_warn(dev, "Failed to get pwren-gpios\n");
gc4023->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gc4023->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
gc4023->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(gc4023->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
gc4023->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(gc4023->pinctrl)) {
gc4023->pins_default =
pinctrl_lookup_state(gc4023->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(gc4023->pins_default))
dev_err(dev, "could not get default pinstate\n");
gc4023->pins_sleep =
pinctrl_lookup_state(gc4023->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(gc4023->pins_sleep))
dev_err(dev, "could not get sleep pinstate\n");
} else {
dev_err(dev, "no pinctrl\n");
}
ret = gc4023_configure_regulators(gc4023);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&gc4023->mutex);
sd = &gc4023->subdev;
v4l2_i2c_subdev_init(sd, client, &gc4023_subdev_ops);
ret = gc4023_initialize_controls(gc4023);
if (ret)
goto err_destroy_mutex;
ret = __gc4023_power_on(gc4023);
if (ret)
goto err_free_handler;
usleep_range(3000, 4000);
ret = gc4023_check_sensor_id(gc4023, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &gc4023_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
gc4023->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &gc4023->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(gc4023->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
gc4023->module_index, facing,
GC4023_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev_sensor_common(sd);
if (ret) {
dev_err(dev, "v4l2 async register subdev failed\n");
goto err_clean_entity;
}
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_idle(dev);
return 0;
err_clean_entity:
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
err_power_off:
__gc4023_power_off(gc4023);
err_free_handler:
v4l2_ctrl_handler_free(&gc4023->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&gc4023->mutex);
return ret;
}
static int gc4023_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct gc4023 *gc4023 = to_gc4023(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&gc4023->ctrl_handler);
mutex_destroy(&gc4023->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__gc4023_power_off(gc4023);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc4023_of_match[] = {
{ .compatible = "galaxycore,gc4023" },
{},
};
MODULE_DEVICE_TABLE(of, gc4023_of_match);
#endif
static const struct i2c_device_id gc4023_match_id[] = {
{ "galaxycore,gc4023", 0 },
{ },
};
static struct i2c_driver gc4023_i2c_driver = {
.driver = {
.name = GC4023_NAME,
.pm = &gc4023_pm_ops,
.of_match_table = of_match_ptr(gc4023_of_match),
},
.probe = &gc4023_probe,
.remove = &gc4023_remove,
.id_table = gc4023_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&gc4023_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&gc4023_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("galaxycore gc4023 sensor driver");
MODULE_LICENSE("GPL");
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