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CoolPi-Armbian-Rockchip-RK3.../drivers/media/i2c/jx_k17.c

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// SPDX-License-Identifier: GPL-2.0
/*
* jx_k17 driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X01 add poweron function.
* V0.0X01.0X02 add enum_frame_interval function.
* V0.0X01.0X03 add quick stream on/off
* V0.0X01.0X04 add function g_mbus_config
*/
#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/rk-camera-module.h>
#include <linux/rk-preisp.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <linux/version.h>
#include <linux/pinctrl/consumer.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x04)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define JX_K17_LANES 2
#define JX_K17_LINK_FREQ 198000000
#define JX_K17_PIXEL_RATE (JX_K17_LINK_FREQ * 2 * JX_K17_LANES / 10)
#define JX_K17_XVCLK_FREQ 24000000
#define CHIP_ID_H 0x0A
#define CHIP_ID_L 0x07
#define JX_K17_PIDH_ADDR 0x0a
#define JX_K17_PIDL_ADDR 0x0b
#define JX_K17_REG_CTRL_MODE 0x12
#define JX_K17_MODE_SW_STANDBY 0x40
#define JX_K17_MODE_STREAMING 0x00
#define JX_K17_AEC_PK_LONG_EXPO_HIGH_REG 0x02 /* Exposure Bits 8-15 */
#define JX_K17_AEC_PK_LONG_EXPO_LOW_REG 0x01 /* Exposure Bits 0-7 */
#define JX_K17_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF) /* 8-15 Bits */
#define JX_K17_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 0-7 Bits */
#define JX_K17_EXPOSURE_MIN 4
#define JX_K17_EXPOSURE_STEP 1
#define JX_K17_VTS_MAX 0xffff
#define JX_K17_AEC_PK_LONG_GAIN_REG 0x00 /* Bits 0 -7 */
#define ANALOG_GAIN_MIN 0x00
#define ANALOG_GAIN_MAX 0x3f
#define ANALOG_GAIN_STEP 1
#define ANALOG_GAIN_DEFAULT 0x1f
#define JX_K17_DIGI_GAIN_L_MASK 0x3f
#define JX_K17_DIGI_GAIN_H_SHIFT 6
#define JX_K17_DIGI_GAIN_MIN 0
#define JX_K17_DIGI_GAIN_MAX (0x4000 - 1)
#define JX_K17_DIGI_GAIN_STEP 1
#define JX_K17_DIGI_GAIN_DEFAULT 1024
#define JX_K17_REG_TEST_PATTERN 0x0c
#define JX_K17_TEST_PATTERN_ENABLE 0x01
#define JX_K17_TEST_PATTERN_DISABLE 0x0
#define JX_K17_REG_HIGH_VTS 0x23
#define JX_K17_REG_LOW_VTS 0X22
#define JX_K17_FETCH_HIGH_BYTE_VTS(VAL) (((VAL) >> 8) & 0xFF) /* 8-15 Bits */
#define JX_K17_FETCH_LOW_BYTE_VTS(VAL) ((VAL) & 0xFF) /* 0-7 Bits */
#define JX_K17_FLIP_MIRROR_REG 0x12
#define REG_NULL 0xFF
#define REG_DELAY 0xFE
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define JX_K17_NAME "jx_k17"
static const char * const jx_k17_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
#define JX_K17_NUM_SUPPLIES ARRAY_SIZE(jx_k17_supply_names)
struct regval {
u8 addr;
u8 val;
};
struct jx_k17_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 jx_k17 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[JX_K17_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 jx_k17_mode *cur_mode;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
u32 cur_vts;
};
#define to_jx_k17(sd) container_of(sd, struct jx_k17, subdev)
/*
* Xclk 24Mhz
*/
static const struct regval jx_k17_global_regs[] = {
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* lane 2
* linelength 880(0x370)
* framelength 1500(0x5dc)
* grabwindow_width 2560
* grabwindow_height 1440
* max_framerate 30fps
* mipi_datarate per lane 396Mbps
*/
static const struct regval jx_k17_2560x1440_2lane_regs[] = {
{0x12, 0x40},
{0x48, 0x8A},
{0x48, 0x0A},
{0x0E, 0x11},
{0x0F, 0x04},
{0x10, 0x42},
{0x11, 0x80},
{0x0D, 0x50},
{0x57, 0xC0},
{0x58, 0x36},
{0x5F, 0x01},
{0x60, 0x19},
{0x61, 0x10},
{0x07, 0x08},
{0x20, 0x70},
{0x21, 0x03},
{0x22, 0xDC},
{0x23, 0x05},
{0x24, 0x80},
{0x25, 0xA0},
{0x26, 0x52},
{0x27, 0x6C},
{0x28, 0x15},
{0x29, 0x03},
{0x2A, 0x60},
{0x2B, 0x13},
{0x2C, 0x32},
{0x2D, 0x1D},
{0x2E, 0x8B},
{0x2F, 0x44},
{0x41, 0x84},
{0x42, 0x02},
{0x46, 0x18},
{0x47, 0x42},
{0x80, 0x03},
{0xAF, 0x22},
{0xBD, 0x00},
{0xBE, 0x0A},
{0x1D, 0x00},
{0x1E, 0x04},
{0x6C, 0x40},
{0x70, 0xD1},
{0x71, 0x8B},
{0x72, 0x6D},
{0x73, 0x49},
{0x75, 0x1B},
{0x74, 0x12},
{0x89, 0x10},
{0x0C, 0x20},
{0x6B, 0x10},
{0x86, 0x43},
{0x9E, 0x80},
{0x78, 0x14},
{0x30, 0x90},
{0x31, 0x18},
{0x32, 0x2A},
{0x33, 0xA8},
{0x34, 0x80},
{0x35, 0x70},
{0x3A, 0xA0},
{0x56, 0x12},
{0x59, 0xAC},
{0x85, 0x64},
{0x8A, 0x04},
{0x91, 0x22},
{0x9F, 0x0F},
{0xBB, 0x07},
{0x5B, 0xA4},
{0x5C, 0x82},
{0x5D, 0xE4},
{0x5E, 0x04},
{0x64, 0xE0},
{0x65, 0x07},
{0x66, 0x04},
{0x67, 0x61},
{0x68, 0x00},
{0x69, 0xF4},
{0x6A, 0x42},
{0x7A, 0x80},
{0x82, 0x20},
{0x8F, 0x90},
{0x9D, 0x70},
{0x97, 0xA2},
{0x13, 0x81},
{0x96, 0x04},
{0x4A, 0x05},
{0x7E, 0xC9},
{0xA7, 0x04},
{0x50, 0x02},
{0x49, 0x10},
{0x7B, 0x4A},
{0x7C, 0x0F},
{0x7F, 0x57},
{0x62, 0x21},
{0x90, 0x00},
{0x8C, 0xFF},
{0x8D, 0xC7},
{0x8E, 0x00},
{0x8B, 0x01},
{0xBF, 0x01},
{0x4E, 0x00},
{0xBF, 0x00},
{0xA3, 0x20},
{0xA0, 0x01},
{0xA2, 0x8D},
{0x81, 0x70},
{0x19, 0x20},
{REG_NULL, 0x00},
};
static const struct jx_k17_mode supported_modes[] = {
{
.width = 2560,
.height = 1440,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x001f,
.hts_def = 0x0370 * 4,
.vts_def = 0x05dc,
.reg_list = jx_k17_2560x1440_2lane_regs,
.bus_fmt = MEDIA_BUS_FMT_SRGGB10_1X10,
.hdr_mode = NO_HDR,
.vc[PAD0] = 0,
},
};
static const s64 link_freq_menu_items[] = {
JX_K17_LINK_FREQ
};
static const char * const jx_k17_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
"Vertical Color Bar Type 2",
"Vertical Color Bar Type 3",
"Vertical Color Bar Type 4"
};
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 jx_k17_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, JX_K17_XVCLK_FREQ / 1000 / 1000);
}
static int jx_k17_write_reg(struct i2c_client *client, u8 reg, u8 val)
{
struct i2c_msg msg;
u8 buf[2];
int ret;
buf[0] = reg & 0xFF;
buf[1] = val;
msg.addr = client->addr;
msg.flags = client->flags;
msg.buf = buf;
msg.len = sizeof(buf);
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret >= 0)
return 0;
dev_err(&client->dev,
"jx_k17 write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
static int jx_k17_write_array(struct i2c_client *client,
const struct regval *regs)
{
u32 i, delay_us;
int ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) {
if (regs[i].addr == REG_DELAY) {
delay_us = jx_k17_cal_delay(500 * 1000);
usleep_range(delay_us, delay_us * 2);
} else {
ret = jx_k17_write_reg(client,
regs[i].addr, regs[i].val);
}
}
return ret;
}
static int jx_k17_read_reg(struct i2c_client *client, u8 reg, u8 *val)
{
struct i2c_msg msg[2];
u8 buf[1];
int ret;
buf[0] = reg & 0xFF;
msg[0].addr = client->addr;
msg[0].flags = client->flags;
msg[0].buf = buf;
msg[0].len = sizeof(buf);
msg[1].addr = client->addr;
msg[1].flags = client->flags | I2C_M_RD;
msg[1].buf = buf;
msg[1].len = 1;
ret = i2c_transfer(client->adapter, msg, 2);
if (ret >= 0) {
*val = buf[0];
return 0;
}
dev_err(&client->dev,
"jx_k17 read reg:0x%x failed !\n", reg);
return ret;
}
static int jx_k17_get_reso_dist(const struct jx_k17_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct jx_k17_mode *
jx_k17_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;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = jx_k17_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 jx_k17_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
const struct jx_k17_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&jx_k17->mutex);
mode = jx_k17_find_best_fit(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, sd_state, fmt->pad) = fmt->format;
#else
mutex_unlock(&jx_k17->mutex);
return -ENOTTY;
#endif
} else {
jx_k17->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(jx_k17->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(jx_k17->vblank, vblank_def,
JX_K17_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&jx_k17->mutex);
return 0;
}
static int jx_k17_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
const struct jx_k17_mode *mode = jx_k17->cur_mode;
mutex_lock(&jx_k17->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(&jx_k17->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;
if (fmt->pad < PAD_MAX && mode->hdr_mode != NO_HDR)
fmt->reserved[0] = mode->vc[fmt->pad];
else
fmt->reserved[0] = mode->vc[PAD0];
}
mutex_unlock(&jx_k17->mutex);
return 0;
}
static int jx_k17_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
if (code->index != 0)
return -EINVAL;
code->code = jx_k17->cur_mode->bus_fmt;
return 0;
}
static int jx_k17_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
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 jx_k17_enable_test_pattern(struct jx_k17 *jx_k17, u32 pattern)
{
u8 val = 0;
jx_k17_read_reg(jx_k17->client, JX_K17_REG_TEST_PATTERN, &val);
if (pattern)
val |= (pattern - 1) | JX_K17_TEST_PATTERN_ENABLE;
else
val &= ~JX_K17_TEST_PATTERN_DISABLE;
return jx_k17_write_reg(jx_k17->client, JX_K17_REG_TEST_PATTERN, val);
}
static int jx_k17_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
const struct jx_k17_mode *mode = jx_k17->cur_mode;
mutex_lock(&jx_k17->mutex);
fi->interval = mode->max_fps;
mutex_unlock(&jx_k17->mutex);
return 0;
}
static int jx_k17_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 = JX_K17_LANES;
return 0;
}
static void jx_k17_get_module_inf(struct jx_k17 *jx_k17,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, JX_K17_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, jx_k17->module_name,
sizeof(inf->base.module));
strscpy(inf->base.lens, jx_k17->len_name, sizeof(inf->base.lens));
}
static long jx_k17_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
struct rkmodule_hdr_cfg *hdr;
u32 i, h, w;
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
jx_k17_get_module_inf(jx_k17, (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 = jx_k17->cur_mode->hdr_mode;
break;
case RKMODULE_SET_HDR_CFG:
hdr = (struct rkmodule_hdr_cfg *)arg;
w = jx_k17->cur_mode->width;
h = jx_k17->cur_mode->height;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
if (w == supported_modes[i].width &&
h == supported_modes[i].height &&
supported_modes[i].hdr_mode == hdr->hdr_mode) {
jx_k17->cur_mode = &supported_modes[i];
break;
}
}
if (i == ARRAY_SIZE(supported_modes)) {
dev_err(&jx_k17->client->dev,
"not find hdr mode:%d %dx%d config\n",
hdr->hdr_mode, w, h);
ret = -EINVAL;
} else {
w = jx_k17->cur_mode->hts_def - jx_k17->cur_mode->width;
h = jx_k17->cur_mode->vts_def - jx_k17->cur_mode->height;
__v4l2_ctrl_modify_range(jx_k17->hblank, w, w, 1, w);
__v4l2_ctrl_modify_range(jx_k17->vblank, h,
JX_K17_VTS_MAX - jx_k17->cur_mode->height, 1, h);
}
break;
case PREISP_CMD_SET_HDRAE_EXP:
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = jx_k17_write_reg(jx_k17->client, JX_K17_REG_CTRL_MODE,
JX_K17_MODE_STREAMING);
else
ret = jx_k17_write_reg(jx_k17->client, JX_K17_REG_CTRL_MODE,
JX_K17_MODE_SW_STANDBY);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long jx_k17_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;
struct preisp_hdrae_exp_s *hdrae;
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 = jx_k17_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 = jx_k17_ioctl(sd, cmd, hdr);
if (!ret) {
ret = copy_to_user(up, hdr, sizeof(*hdr));
if (ret) {
kfree(hdr);
return -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 = jx_k17_ioctl(sd, cmd, hdr);
else
ret = -EFAULT;
kfree(hdr);
break;
case PREISP_CMD_SET_HDRAE_EXP:
hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL);
if (!hdrae) {
ret = -ENOMEM;
return ret;
}
ret = copy_from_user(hdrae, up, sizeof(*hdrae));
if (!ret)
ret = jx_k17_ioctl(sd, cmd, hdrae);
else
ret = -EFAULT;
kfree(hdrae);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (ret)
return -EFAULT;
ret = jx_k17_ioctl(sd, cmd, &stream);
break;
default:
ret = -ENOTTY;
break;
}
return ret;
}
#endif
static int __jx_k17_start_stream(struct jx_k17 *jx_k17)
{
int ret;
ret = jx_k17_write_array(jx_k17->client, jx_k17->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
ret = __v4l2_ctrl_handler_setup(&jx_k17->ctrl_handler);
if (ret)
return ret;
ret = jx_k17_write_reg(jx_k17->client, JX_K17_REG_CTRL_MODE,
JX_K17_MODE_STREAMING);
return ret;
}
static int __jx_k17_stop_stream(struct jx_k17 *jx_k17)
{
return jx_k17_write_reg(jx_k17->client, JX_K17_REG_CTRL_MODE,
JX_K17_MODE_SW_STANDBY);
}
static int jx_k17_s_stream(struct v4l2_subdev *sd, int on)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
struct i2c_client *client = jx_k17->client;
int ret = 0;
mutex_lock(&jx_k17->mutex);
on = !!on;
if (on == jx_k17->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 = __jx_k17_start_stream(jx_k17);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__jx_k17_stop_stream(jx_k17);
pm_runtime_put(&client->dev);
}
jx_k17->streaming = on;
unlock_and_return:
mutex_unlock(&jx_k17->mutex);
return ret;
}
static int jx_k17_s_power(struct v4l2_subdev *sd, int on)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
struct i2c_client *client = jx_k17->client;
int ret = 0;
mutex_lock(&jx_k17->mutex);
/* If the power state is not modified - no work to do. */
if (jx_k17->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 = jx_k17_write_array(jx_k17->client,
jx_k17_global_regs);
if (ret) {
v4l2_err(sd, "could not set init registers\n");
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
jx_k17->power_on = true;
} else {
pm_runtime_put(&client->dev);
jx_k17->power_on = false;
}
unlock_and_return:
mutex_unlock(&jx_k17->mutex);
return ret;
}
static int __jx_k17_power_on(struct jx_k17 *jx_k17)
{
int ret;
u32 delay_us;
struct device *dev = &jx_k17->client->dev;
if (!IS_ERR_OR_NULL(jx_k17->pins_default)) {
ret = pinctrl_select_state(jx_k17->pinctrl,
jx_k17->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
ret = clk_set_rate(jx_k17->xvclk, JX_K17_XVCLK_FREQ);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
return ret;
}
if (clk_get_rate(jx_k17->xvclk) != JX_K17_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(jx_k17->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(jx_k17->pwdn_gpio))
gpiod_set_value_cansleep(jx_k17->pwdn_gpio, 1);
if (!IS_ERR(jx_k17->reset_gpio))
gpiod_set_value_cansleep(jx_k17->reset_gpio, 1);
usleep_range(2 * 1000, 3 * 1000);
if (!IS_ERR(jx_k17->reset_gpio))
gpiod_set_value_cansleep(jx_k17->reset_gpio, 0);
ret = regulator_bulk_enable(JX_K17_NUM_SUPPLIES, jx_k17->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
/* According to datasheet, at least 10ms for reset duration */
usleep_range(10 * 1000, 15 * 1000);
if (!IS_ERR(jx_k17->reset_gpio))
gpiod_set_value_cansleep(jx_k17->reset_gpio, 1);
usleep_range(2000, 3000);
if (!IS_ERR(jx_k17->pwdn_gpio))
gpiod_set_value_cansleep(jx_k17->pwdn_gpio, 0);
if (!IS_ERR(jx_k17->reset_gpio))
usleep_range(6000, 8000);
else
usleep_range(12000, 16000);
/* 8192 cycles prior to first SCCB transaction */
delay_us = jx_k17_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(jx_k17->xvclk);
return ret;
}
static void __jx_k17_power_off(struct jx_k17 *jx_k17)
{
int ret;
struct device *dev = &jx_k17->client->dev;
if (!IS_ERR(jx_k17->pwdn_gpio))
gpiod_set_value_cansleep(jx_k17->pwdn_gpio, 1);
clk_disable_unprepare(jx_k17->xvclk);
if (!IS_ERR(jx_k17->reset_gpio))
gpiod_set_value_cansleep(jx_k17->reset_gpio, 0);
if (!IS_ERR_OR_NULL(jx_k17->pins_sleep)) {
ret = pinctrl_select_state(jx_k17->pinctrl,
jx_k17->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
regulator_bulk_disable(JX_K17_NUM_SUPPLIES, jx_k17->supplies);
}
static int jx_k17_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct jx_k17 *jx_k17 = to_jx_k17(sd);
return __jx_k17_power_on(jx_k17);
}
static int jx_k17_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct jx_k17 *jx_k17 = to_jx_k17(sd);
__jx_k17_power_off(jx_k17);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int jx_k17_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct jx_k17 *jx_k17 = to_jx_k17(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->state, 0);
const struct jx_k17_mode *def_mode = &supported_modes[0];
mutex_lock(&jx_k17->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(&jx_k17->mutex);
/* No crop or compose */
return 0;
}
#endif
static int jx_k17_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval_enum *fie)
{
if (fie->index >= ARRAY_SIZE(supported_modes))
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;
}
static const struct dev_pm_ops jx_k17_pm_ops = {
SET_RUNTIME_PM_OPS(jx_k17_runtime_suspend,
jx_k17_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops jx_k17_internal_ops = {
.open = jx_k17_open,
};
#endif
static const struct v4l2_subdev_core_ops jx_k17_core_ops = {
.s_power = jx_k17_s_power,
.ioctl = jx_k17_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = jx_k17_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops jx_k17_video_ops = {
.s_stream = jx_k17_s_stream,
.g_frame_interval = jx_k17_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops jx_k17_pad_ops = {
.enum_mbus_code = jx_k17_enum_mbus_code,
.enum_frame_size = jx_k17_enum_frame_sizes,
.enum_frame_interval = jx_k17_enum_frame_interval,
.get_fmt = jx_k17_get_fmt,
.set_fmt = jx_k17_set_fmt,
.get_mbus_config = jx_k17_g_mbus_config,
};
static const struct v4l2_subdev_ops jx_k17_subdev_ops = {
.core = &jx_k17_core_ops,
.video = &jx_k17_video_ops,
.pad = &jx_k17_pad_ops,
};
static int jx_k17_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct jx_k17 *jx_k17 = container_of(ctrl->handler,
struct jx_k17, ctrl_handler);
struct i2c_client *client = jx_k17->client;
s64 max;
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 = jx_k17->cur_mode->height + ctrl->val - 9;
__v4l2_ctrl_modify_range(jx_k17->exposure,
jx_k17->exposure->minimum, max,
jx_k17->exposure->step,
jx_k17->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 expo: val: %d\n", ctrl->val);
/* 4 least significant bits of expsoure are fractional part */
ret = jx_k17_write_reg(jx_k17->client,
JX_K17_AEC_PK_LONG_EXPO_HIGH_REG,
JX_K17_FETCH_HIGH_BYTE_EXP(ctrl->val));
ret |= jx_k17_write_reg(jx_k17->client,
JX_K17_AEC_PK_LONG_EXPO_LOW_REG,
JX_K17_FETCH_LOW_BYTE_EXP(ctrl->val));
break;
case V4L2_CID_ANALOGUE_GAIN:
dev_dbg(&client->dev, "set a-gain: val: %d\n", ctrl->val);
ret |= jx_k17_write_reg(jx_k17->client,
JX_K17_AEC_PK_LONG_GAIN_REG, ctrl->val);
break;
case V4L2_CID_VBLANK:
dev_dbg(&client->dev, "set vblank: val: %d\n", ctrl->val);
ret |= jx_k17_write_reg(jx_k17->client, JX_K17_REG_HIGH_VTS,
JX_K17_FETCH_HIGH_BYTE_VTS((ctrl->val + jx_k17->cur_mode->height)));
ret |= jx_k17_write_reg(jx_k17->client, JX_K17_REG_LOW_VTS,
JX_K17_FETCH_LOW_BYTE_VTS((ctrl->val + jx_k17->cur_mode->height)));
break;
case V4L2_CID_TEST_PATTERN:
ret = jx_k17_enable_test_pattern(jx_k17, 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 jx_k17_ctrl_ops = {
.s_ctrl = jx_k17_set_ctrl,
};
static int jx_k17_initialize_controls(struct jx_k17 *jx_k17)
{
const struct jx_k17_mode *mode;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl *ctrl;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &jx_k17->ctrl_handler;
mode = jx_k17->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 7);
if (ret)
return ret;
handler->lock = &jx_k17->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, JX_K17_PIXEL_RATE, 1, JX_K17_PIXEL_RATE);
h_blank = mode->hts_def - mode->width;
jx_k17->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (jx_k17->hblank)
jx_k17->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
jx_k17->vblank = v4l2_ctrl_new_std(handler, &jx_k17_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
JX_K17_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 9;
jx_k17->exposure = v4l2_ctrl_new_std(handler, &jx_k17_ctrl_ops,
V4L2_CID_EXPOSURE, JX_K17_EXPOSURE_MIN,
exposure_max, JX_K17_EXPOSURE_STEP,
mode->exp_def);
jx_k17->anal_gain = v4l2_ctrl_new_std(handler, &jx_k17_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
ANALOG_GAIN_DEFAULT);
jx_k17->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&jx_k17_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(jx_k17_test_pattern_menu) - 1,
0, 0, jx_k17_test_pattern_menu);
if (handler->error) {
ret = handler->error;
dev_err(&jx_k17->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
jx_k17->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int jx_k17_check_sensor_id(struct jx_k17 *jx_k17,
struct i2c_client *client)
{
struct device *dev = &jx_k17->client->dev;
u8 id_h = 0;
u8 id_l = 0;
int ret;
ret = jx_k17_read_reg(client, JX_K17_PIDH_ADDR, &id_h);
ret |= jx_k17_read_reg(client, JX_K17_PIDL_ADDR, &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 jx_k17 (0x%02x%02x) sensor\n",
id_h, id_l);
return ret;
}
static int jx_k17_configure_regulators(struct jx_k17 *jx_k17)
{
unsigned int i;
for (i = 0; i < JX_K17_NUM_SUPPLIES; i++)
jx_k17->supplies[i].supply = jx_k17_supply_names[i];
return devm_regulator_bulk_get(&jx_k17->client->dev,
JX_K17_NUM_SUPPLIES,
jx_k17->supplies);
}
static int jx_k17_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct jx_k17 *jx_k17;
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);
jx_k17 = devm_kzalloc(dev, sizeof(*jx_k17), GFP_KERNEL);
if (!jx_k17)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&jx_k17->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&jx_k17->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&jx_k17->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&jx_k17->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
jx_k17->client = client;
jx_k17->cur_mode = &supported_modes[0];
jx_k17->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(jx_k17->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
jx_k17->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(jx_k17->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
jx_k17->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(jx_k17->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
jx_k17->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(jx_k17->pinctrl)) {
jx_k17->pins_default =
pinctrl_lookup_state(jx_k17->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(jx_k17->pins_default))
dev_err(dev, "could not get default pinstate\n");
jx_k17->pins_sleep =
pinctrl_lookup_state(jx_k17->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(jx_k17->pins_sleep))
dev_err(dev, "could not get sleep pinstate\n");
} else {
dev_err(dev, "no pinctrl\n");
}
ret = jx_k17_configure_regulators(jx_k17);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&jx_k17->mutex);
sd = &jx_k17->subdev;
v4l2_i2c_subdev_init(sd, client, &jx_k17_subdev_ops);
ret = jx_k17_initialize_controls(jx_k17);
if (ret)
goto err_destroy_mutex;
ret = __jx_k17_power_on(jx_k17);
if (ret)
goto err_free_handler;
ret = jx_k17_check_sensor_id(jx_k17, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &jx_k17_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
jx_k17->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &jx_k17->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(jx_k17->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
jx_k17->module_index, facing,
JX_K17_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:
__jx_k17_power_off(jx_k17);
err_free_handler:
v4l2_ctrl_handler_free(&jx_k17->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&jx_k17->mutex);
return ret;
}
static void jx_k17_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct jx_k17 *jx_k17 = to_jx_k17(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&jx_k17->ctrl_handler);
mutex_destroy(&jx_k17->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__jx_k17_power_off(jx_k17);
pm_runtime_set_suspended(&client->dev);
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id jx_k17_of_match[] = {
{ .compatible = "soi,jx_k17" },
{},
};
MODULE_DEVICE_TABLE(of, jx_k17_of_match);
#endif
static const struct i2c_device_id jx_k17_match_id[] = {
{ "soi,jx_k17", 0 },
{ },
};
static struct i2c_driver jx_k17_i2c_driver = {
.driver = {
.name = JX_K17_NAME,
.pm = &jx_k17_pm_ops,
.of_match_table = of_match_ptr(jx_k17_of_match),
},
.probe = &jx_k17_probe,
.remove = &jx_k17_remove,
.id_table = jx_k17_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&jx_k17_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&jx_k17_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("SOI jx_k17 sensor driver");
MODULE_LICENSE("GPL");
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