// SPDX-License-Identifier: GPL-2.0
/*
* ov02b10 driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 first version.
* V0.0X01.0X01 fix power on & off sequence
*/
#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 <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <linux/pinctrl/consumer.h>
#include <linux/rk-preisp.h>
#include "../platform/rockchip/isp/rkisp_tb_helper.h"
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x01)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define MIPI_FREQ_360M 360000000
#define PIXEL_RATE_WITH_360M (MIPI_FREQ_360M * 2 / 10 * 4)
#define OV02B10_XVCLK_FREQ 24000000
#define OV02B10_CHIP_ID 0x2B
#define OV02B10_REG_CHIP_ID_H 0x02
#define OV02B10_REG_CHIP_ID_L 0x03
#define OV02B10_VTS_MAX 0xFFFF
#define OV02B10_GAIN_MIN 0x10
#define OV02B10_GAIN_MAX 0x3FF
#define OV02B10_GAIN_STEP 1
#define OV02B10_GAIN_DEFAULT 0x10
#define OV02B10_EXPOSURE_MIN 4
#define OV02B10_EXPOSURE_STEP 1
#define OV02B10_REG_PAGE_SELECT 0xFD
#define OV02B10_REG_EXP_H 0x0E
#define OV02B10_REG_EXP_L 0x0F
#define OV02B10_REG_AGAIN 0x22
#define OV02B10_REG_DGAIN 0x9B
#define OV02B10_REG_RESTART 0xFE
#define OV02B10_REG_HTS_H 0x25
#define OV02B10_REG_HTS_L 0x26
#define OV02B10_REG_VTS_H 0x27
#define OV02B10_REG_VTS_L 0x28
#define OV02B10_REG_VBLANK_H 0x14
#define OV02B10_REG_VBLANK_L 0x15
#define OV02B10_REG_CTRL_MODE 0xFB
#define OV02B10_MODE_SW_STANDBY 0x0
#define OV02B10_MODE_STREAMING BIT(0)
#define OV02B10_REG_SOFTWARE_RESET 0xFC
#define OV02B10_SOFTWARE_RESET_VAL 0x1
#define OV02B10_FLIP_REG 0x12
#define MIRROR_BIT_MASK BIT(0)
#define FLIP_BIT_MASK BIT(1)
#define OV02B10_LANES 1
#define OV02B10_NAME "ov02b10"
#define OF_CAMERA_HDR_MODE "rockchip,camera-hdr-mode"
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define REG_NULL 0xFF
#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb))
static const char * const OV02B10_supply_names[] = {
"dovdd", /* Digital I/O power */
"avdd", /* Analog power */
};
#define OV02B10_NUM_SUPPLIES ARRAY_SIZE(OV02B10_supply_names)
struct regval {
u8 addr;
u8 val;
};
struct ov02b10_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 ov02b10 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[OV02B10_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 mutex mutex;
bool streaming;
bool power_on;
const struct ov02b10_mode *cur_mode;
u32 cfg_num;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
bool has_init_exp;
struct preisp_hdrae_exp_s init_hdrae_exp;
u8 flip;
};
#define to_ov02b10(sd) container_of(sd, struct ov02b10, subdev)
/*
* Xclk 24Mhz
*/
static const struct regval ov02b10_linear10bit_1600x1200_regs[] = {
{0xfc, 0x01},
{0xfd, 0x00},
{0xfd, 0x00},
{0x24, 0x02},
{0x25, 0x06},
{0x29, 0x03},
{0x2a, 0x34},
{0x1e, 0x17},
{0x33, 0x07},
{0x35, 0x07},
{0x4a, 0x0c},
{0x3a, 0x05},
{0x3b, 0x02},
{0x3e, 0x00},
{0x46, 0x01},
{0x6d, 0x03},
{0xfd, 0x01},
{0x0e, 0x02},
{0x0f, 0x1a},
{0x18, 0x00},
{0x22, 0xff},
{0x23, 0x02},
{0x17, 0x2c},
{0x19, 0x20},
{0x1b, 0x06},
{0x1c, 0x04},
{0x20, 0x03},
{0x30, 0x01},
{0x33, 0x01},
{0x31, 0x0a},
{0x32, 0x09},
{0x38, 0x01},
{0x39, 0x01},
{0x3a, 0x01},
{0x3b, 0x01},
{0x4f, 0x04},
{0x4e, 0x05},
{0x50, 0x01},
{0x35, 0x0c},
{0x45, 0x2a},
{0x46, 0x2a},
{0x47, 0x2a},
{0x48, 0x2a},
{0x4a, 0x2c},
{0x4b, 0x2c},
{0x4c, 0x2c},
{0x4d, 0x2c},
{0x56, 0x3a},
{0x57, 0x0a},
{0x58, 0x24},
{0x59, 0x20},
{0x5a, 0x0a},
{0x5b, 0xff},
{0x37, 0x0a},
{0x42, 0x0e},
{0x68, 0x90},
{0x69, 0xcd},
{0x6a, 0x8f},
{0x7c, 0x0a},
{0x7d, 0x0a},
{0x7e, 0x0a},
{0x7f, 0x08},
{0x83, 0x14},
{0x84, 0x14},
{0x86, 0x14},
{0x87, 0x07},
{0x88, 0x0f},
{0x94, 0x02},
{0x98, 0xd1},
{0xfe, 0x02},
{0xfd, 0x03},
{0x97, 0x6c},
{0x98, 0x60},
{0x99, 0x60},
{0x9a, 0x6c},
{0xa1, 0x40},
{0xaf, 0x04},
{0xb1, 0x40},
{0xae, 0x0d},
{0x88, 0x5b},
{0x89, 0x7c},
{0xb4, 0x05},
{0x8c, 0x40},
{0x8e, 0x40},
{0x90, 0x40},
{0x92, 0x40},
{0x9b, 0x46},
{0xac, 0x40},
{0xfd, 0x00},
{0x5a, 0x15},
{0x74, 0x01},
{0xfd, 0x00},
{0x50, 0x40},
{0x52, 0xb0},
{0xfd, 0x01},
{0x03, 0x70},
{0x05, 0x10},
{0x07, 0x20},
{0x09, 0xb0},
{0xfd, 0x03},
{0xc2, 0x01},
{0xfb, 0x01},
{REG_NULL, 0x00},
};
/*
* The width and height must be configured to be
* 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.
* If the width or height does not meet the alignment rules,
* you can configure the cropping parameters with the following function to
* crop out the appropriate resolution.
* struct v4l2_subdev_pad_ops {
* .get_selection
* }
*/
static const struct ov02b10_mode supported_modes[] = {
{
.bus_fmt = MEDIA_BUS_FMT_SBGGR10_1X10,
.width = 1600,
.height = 1200,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x02ea,
.hts_def = 0x06ac,
.vts_def = 0x04c4,
.reg_list = ov02b10_linear10bit_1600x1200_regs,
.hdr_mode = NO_HDR,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
},
};
static const s64 link_freq_menu_items[] = {
MIPI_FREQ_360M,
};
static int __ov02b10_power_on(struct ov02b10 *ov02b10);
static int ov02b10_check_sensor_id(struct ov02b10 *ov02b10,
struct i2c_client *client);
/* sensor register write */
static int ov02b10_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,
"ov02b10 write reg(0x%x val:0x%x) failed !\n", reg, val);
return ret;
}
static int ov02b10_write_array(struct i2c_client *client,
const struct regval *regs)
{
int i, ret = 0;
i = 0;
while (regs[i].addr != REG_NULL) {
ret = ov02b10_write_reg(client, regs[i].addr, regs[i].val);
if (ret) {
dev_err(&client->dev, "%s failed !\n", __func__);
break;
}
i++;
}
return ret;
}
/* sensor register read */
static int ov02b10_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,
"ov02b10 read reg(0x%x val:0x%x) failed !\n", reg, *val);
return ret;
}
static int ov02b10_get_reso_dist(const struct ov02b10_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct ov02b10_mode *
ov02b10_find_best_fit(struct ov02b10 *ov02b10, 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 < ov02b10->cfg_num; i++) {
dist = ov02b10_get_reso_dist(&supported_modes[i], framefmt);
if ((cur_best_fit_dist == -1 || dist <= cur_best_fit_dist) &&
(supported_modes[i].bus_fmt == framefmt->code)) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &supported_modes[cur_best_fit];
}
static int ov02b10_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
const struct ov02b10_mode *mode;
s64 h_blank, vblank_def;
u64 dst_link_freq = 0;
u64 dst_pixel_rate = 0;
mutex_lock(&ov02b10->mutex);
mode = ov02b10_find_best_fit(ov02b10, 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(&ov02b10->mutex);
return -ENOTTY;
#endif
} else {
ov02b10->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(ov02b10->hblank, h_blank,
h_blank, 1, h_blank);
/* From spec: vstart is 0xc by default */
vblank_def = mode->vts_def - mode->height - 0xc;
__v4l2_ctrl_modify_range(ov02b10->vblank, vblank_def,
OV02B10_VTS_MAX - mode->height,
1, vblank_def);
if (mode->hdr_mode == NO_HDR) {
if (mode->bus_fmt == MEDIA_BUS_FMT_SBGGR10_1X10) {
dst_link_freq = 0;
dst_pixel_rate = PIXEL_RATE_WITH_360M;
}
}
__v4l2_ctrl_s_ctrl_int64(ov02b10->pixel_rate,
dst_pixel_rate);
__v4l2_ctrl_s_ctrl(ov02b10->link_freq,
dst_link_freq);
}
mutex_unlock(&ov02b10->mutex);
return 0;
}
static int ov02b10_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
const struct ov02b10_mode *mode = ov02b10->cur_mode;
mutex_lock(&ov02b10->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(&ov02b10->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(&ov02b10->mutex);
return 0;
}
static int ov02b10_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
if (code->index != 0)
return -EINVAL;
code->code = ov02b10->cur_mode->bus_fmt;
return 0;
}
static int ov02b10_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
if (fse->index >= ov02b10->cfg_num)
return -EINVAL;
if (fse->code != supported_modes[fse->index].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 ov02b10_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
const struct ov02b10_mode *mode = ov02b10->cur_mode;
mutex_lock(&ov02b10->mutex);
fi->interval = mode->max_fps;
mutex_unlock(&ov02b10->mutex);
return 0;
}
static int ov02b10_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
struct v4l2_mbus_config *config)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
const struct ov02b10_mode *mode = ov02b10->cur_mode;
u32 val = 0;
if (mode->hdr_mode == NO_HDR)
val = 1 << (OV02B10_LANES - 1) |
V4L2_MBUS_CSI2_CHANNEL_0 |
V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
if (mode->hdr_mode == HDR_X2)
val = 1 << (OV02B10_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 ov02b10_get_module_inf(struct ov02b10 *ov02b10,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, OV02B10_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, ov02b10->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, ov02b10->len_name, sizeof(inf->base.lens));
}
static long ov02b10_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
struct rkmodule_hdr_cfg *hdr_cfg;
long ret = 0;
u32 stream = 0;
switch (cmd) {
case PREISP_CMD_SET_HDRAE_EXP:
ret = -1;
break;
case RKMODULE_SET_HDR_CFG:
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
if (hdr_cfg->hdr_mode != 0)
ret = -1;
break;
case RKMODULE_GET_MODULE_INFO:
ov02b10_get_module_inf(ov02b10, (struct rkmodule_inf *)arg);
break;
case RKMODULE_GET_HDR_CFG:
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
hdr_cfg->esp.mode = HDR_NORMAL_VC;
hdr_cfg->hdr_mode = ov02b10->cur_mode->hdr_mode;
break;
case RKMODULE_SET_CONVERSION_GAIN:
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE,
OV02B10_MODE_STREAMING);
else
ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE,
OV02B10_MODE_SW_STANDBY);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long ov02b10_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
struct rkmodule_awb_cfg *cfg;
struct rkmodule_hdr_cfg *hdr;
struct preisp_hdrae_exp_s *hdrae;
long ret;
u32 cg = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = ov02b10_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:
cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
if (!cfg) {
ret = -ENOMEM;
return ret;
}
ret = copy_from_user(cfg, up, sizeof(*cfg));
if (!ret)
ret = ov02b10_ioctl(sd, cmd, cfg);
else
ret = -EFAULT;
kfree(cfg);
break;
case RKMODULE_GET_HDR_CFG:
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
if (!hdr) {
ret = -ENOMEM;
return ret;
}
ret = ov02b10_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 = ov02b10_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 = ov02b10_ioctl(sd, cmd, hdrae);
else
ret = -EFAULT;
kfree(hdrae);
break;
case RKMODULE_SET_CONVERSION_GAIN:
ret = copy_from_user(&cg, up, sizeof(cg));
if (!ret)
ret = ov02b10_ioctl(sd, cmd, &cg);
else
ret = -EFAULT;
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = ov02b10_ioctl(sd, cmd, &stream);
else
ret = -EFAULT;
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __ov02b10_start_stream(struct ov02b10 *ov02b10)
{
int ret;
ret = ov02b10_write_array(ov02b10->client, ov02b10->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
ret = __v4l2_ctrl_handler_setup(&ov02b10->ctrl_handler);
if (ret)
return ret;
if (ov02b10->has_init_exp && ov02b10->cur_mode->hdr_mode != NO_HDR) {
ret = ov02b10_ioctl(&ov02b10->subdev, PREISP_CMD_SET_HDRAE_EXP,
&ov02b10->init_hdrae_exp);
if (ret) {
dev_err(&ov02b10->client->dev,
"init exp fail in hdr mode\n");
return ret;
}
}
return ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_STREAMING);
}
static int __ov02b10_stop_stream(struct ov02b10 *ov02b10)
{
ov02b10->has_init_exp = false;
return ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_SW_STANDBY);
}
static int ov02b10_s_stream(struct v4l2_subdev *sd, int on)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
struct i2c_client *client = ov02b10->client;
int ret = 0;
mutex_lock(&ov02b10->mutex);
on = !!on;
if (on == ov02b10->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 = __ov02b10_start_stream(ov02b10);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__ov02b10_stop_stream(ov02b10);
pm_runtime_put(&client->dev);
}
ov02b10->streaming = on;
unlock_and_return:
mutex_unlock(&ov02b10->mutex);
return ret;
}
static int ov02b10_s_power(struct v4l2_subdev *sd, int on)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
struct i2c_client *client = ov02b10->client;
int ret = 0;
mutex_lock(&ov02b10->mutex);
/* If the power state is not modified - no work to do. */
if (ov02b10->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 |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_SOFTWARE_RESET,
OV02B10_SOFTWARE_RESET_VAL);
usleep_range(100, 200);
ov02b10->power_on = true;
} else {
pm_runtime_put(&client->dev);
ov02b10->power_on = false;
}
unlock_and_return:
mutex_unlock(&ov02b10->mutex);
return ret;
}
static int ov02b10_enable_regulators(struct ov02b10 *ov02b10,
struct regulator_bulk_data *consumers)
{
int i, j;
int ret = 0;
struct device *dev = &ov02b10->client->dev;
int num_consumers = OV02B10_NUM_SUPPLIES;
for (i = 0; i < num_consumers; i++) {
ret = regulator_enable(consumers[i].consumer);
if (ret < 0) {
dev_err(dev, "Failed to enable regulator: %s\n",
consumers[i].supply);
goto err;
}
}
return 0;
err:
for (j = 0; j < i; j++)
regulator_disable(consumers[j].consumer);
return ret;
}
static int __ov02b10_power_on(struct ov02b10 *ov02b10)
{
int ret;
struct device *dev = &ov02b10->client->dev;
if (!IS_ERR_OR_NULL(ov02b10->pins_default)) {
ret = pinctrl_select_state(ov02b10->pinctrl,
ov02b10->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
ret = clk_set_rate(ov02b10->xvclk, OV02B10_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
if (clk_get_rate(ov02b10->xvclk) != OV02B10_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
if (!IS_ERR(ov02b10->pwdn_gpio))
gpiod_direction_output(ov02b10->pwdn_gpio, 1);
if (!IS_ERR(ov02b10->reset_gpio))
gpiod_direction_output(ov02b10->reset_gpio, 1);
ret = ov02b10_enable_regulators(ov02b10, ov02b10->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
usleep_range(100, 110);
ret = clk_prepare_enable(ov02b10->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
/* From spec: delay from power stable to pwdn off: 5ms */
usleep_range(5000, 6000);
if (!IS_ERR(ov02b10->pwdn_gpio))
gpiod_direction_output(ov02b10->pwdn_gpio, 0);
/* From spec: delay from pwdn off to reset off */
usleep_range(4000, 5000);
if (!IS_ERR(ov02b10->reset_gpio))
gpiod_direction_output(ov02b10->reset_gpio, 0);
/* From spec: 5ms for SCCB initialization */
usleep_range(5000, 6000);
return 0;
disable_clk:
clk_disable_unprepare(ov02b10->xvclk);
return ret;
}
static void __ov02b10_power_off(struct ov02b10 *ov02b10)
{
int ret;
struct device *dev = &ov02b10->client->dev;
if (!IS_ERR(ov02b10->reset_gpio))
gpiod_direction_output(ov02b10->reset_gpio, 1);
clk_disable_unprepare(ov02b10->xvclk);
if (!IS_ERR(ov02b10->pwdn_gpio))
gpiod_direction_output(ov02b10->pwdn_gpio, 1);
if (!IS_ERR_OR_NULL(ov02b10->pins_sleep)) {
ret = pinctrl_select_state(ov02b10->pinctrl,
ov02b10->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
regulator_bulk_disable(OV02B10_NUM_SUPPLIES, ov02b10->supplies);
}
static int ov02b10_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov02b10 *ov02b10 = to_ov02b10(sd);
return __ov02b10_power_on(ov02b10);
}
static int ov02b10_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov02b10 *ov02b10 = to_ov02b10(sd);
__ov02b10_power_off(ov02b10);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int ov02b10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct ov02b10_mode *def_mode = &supported_modes[0];
mutex_lock(&ov02b10->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(&ov02b10->mutex);
/* No crop or compose */
return 0;
}
#endif
static int ov02b10_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
struct ov02b10 *ov02b10 = to_ov02b10(sd);
if (fie->index >= ov02b10->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;
}
static const struct dev_pm_ops ov02b10_pm_ops = {
SET_RUNTIME_PM_OPS(ov02b10_runtime_suspend,
ov02b10_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops ov02b10_internal_ops = {
.open = ov02b10_open,
};
#endif
static const struct v4l2_subdev_core_ops ov02b10_core_ops = {
.s_power = ov02b10_s_power,
.ioctl = ov02b10_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = ov02b10_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops ov02b10_video_ops = {
.s_stream = ov02b10_s_stream,
.g_frame_interval = ov02b10_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops ov02b10_pad_ops = {
.enum_mbus_code = ov02b10_enum_mbus_code,
.enum_frame_size = ov02b10_enum_frame_sizes,
.enum_frame_interval = ov02b10_enum_frame_interval,
.get_fmt = ov02b10_get_fmt,
.set_fmt = ov02b10_set_fmt,
.get_mbus_config = ov02b10_g_mbus_config,
};
static const struct v4l2_subdev_ops ov02b10_subdev_ops = {
.core = &ov02b10_core_ops,
.video = &ov02b10_video_ops,
.pad = &ov02b10_pad_ops,
};
static int ov02b10_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct ov02b10 *ov02b10 = container_of(ctrl->handler,
struct ov02b10, ctrl_handler);
struct i2c_client *client = ov02b10->client;
s64 max;
int ret = 0;
u8 again = 0, dgain = 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 = ov02b10->cur_mode->height + ctrl->val - 7;
__v4l2_ctrl_modify_range(ov02b10->exposure,
ov02b10->exposure->minimum, max,
ov02b10->exposure->step,
ov02b10->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
ret = ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x1);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_EXP_H, (ctrl->val >> 8) & 0xFF);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_EXP_L, ctrl->val & 0xFF);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_RESTART, 0x02);
dev_dbg(&client->dev, "set exposure 0x%x\n", ctrl->val);
break;
case V4L2_CID_ANALOGUE_GAIN:
if (ctrl->val > 248) {
again = 248;
dgain = (ctrl->val * 64 / 248 > 0xff) ? 0xff : ctrl->val * 64 / 248;
} else {
dgain = 64;
again = ctrl->val;
}
ret = ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x01);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_AGAIN, again);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x03);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_DGAIN, dgain);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_RESTART, 0x02);
dev_dbg(&client->dev, "set gain 0x%x, again = %#x(%u), dgain = %#x(%u)\n",
ctrl->val, again, again, dgain, dgain);
break;
case V4L2_CID_VBLANK:
ret = ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x01);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_VBLANK_H, (ctrl->val >> 8) & 0xFF);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_VBLANK_L, ctrl->val & 0xFF);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_RESTART, 0x02);
dev_dbg(&client->dev, "set vblank 0x%x\n", ctrl->val);
break;
case V4L2_CID_TEST_PATTERN:
break;
case V4L2_CID_HFLIP:
if (ctrl->val)
ov02b10->flip |= MIRROR_BIT_MASK;
else
ov02b10->flip &= ~MIRROR_BIT_MASK;
ret = ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x01);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_FLIP_REG, ov02b10->flip);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_RESTART, 0x02);
dev_dbg(&client->dev, "set hflip 0x%x\n", ov02b10->flip);
break;
case V4L2_CID_VFLIP:
if (ctrl->val)
ov02b10->flip |= FLIP_BIT_MASK;
else
ov02b10->flip &= ~FLIP_BIT_MASK;
ret = ov02b10_write_reg(ov02b10->client,
OV02B10_REG_PAGE_SELECT, 0x01);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_FLIP_REG, ov02b10->flip);
ret |= ov02b10_write_reg(ov02b10->client,
OV02B10_REG_RESTART, 0x02);
dev_dbg(&client->dev, "set vflip 0x%x\n", ov02b10->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 ov02b10_ctrl_ops = {
.s_ctrl = ov02b10_set_ctrl,
};
static int ov02b10_initialize_controls(struct ov02b10 *ov02b10)
{
const struct ov02b10_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
u64 dst_link_freq = 0;
u64 dst_pixel_rate = 0;
handler = &ov02b10->ctrl_handler;
mode = ov02b10->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 9);
if (ret)
return ret;
handler->lock = &ov02b10->mutex;
ov02b10->link_freq = v4l2_ctrl_new_int_menu(handler, NULL,
V4L2_CID_LINK_FREQ,
1, 0, link_freq_menu_items);
if (ov02b10->cur_mode->bus_fmt == MEDIA_BUS_FMT_SBGGR10_1X10) {
dst_link_freq = 0;
dst_pixel_rate = PIXEL_RATE_WITH_360M;
}
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
ov02b10->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
V4L2_CID_PIXEL_RATE,
0, PIXEL_RATE_WITH_360M,
1, dst_pixel_rate);
__v4l2_ctrl_s_ctrl(ov02b10->link_freq,
dst_link_freq);
h_blank = mode->hts_def - mode->width;
ov02b10->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (ov02b10->hblank)
ov02b10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* From spec: vstart is 0xc by default */
vblank_def = mode->vts_def - mode->height - 0xc;
ov02b10->vblank = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
OV02B10_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 7;
ov02b10->exposure = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops,
V4L2_CID_EXPOSURE, OV02B10_EXPOSURE_MIN,
exposure_max, OV02B10_EXPOSURE_STEP,
mode->exp_def);
ov02b10->anal_gain = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, OV02B10_GAIN_MIN,
OV02B10_GAIN_MAX, OV02B10_GAIN_STEP,
OV02B10_GAIN_DEFAULT);
ov02b10->h_flip = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
ov02b10->v_flip = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
ov02b10->flip = 0;
if (handler->error) {
ret = handler->error;
dev_err(&ov02b10->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
ov02b10->subdev.ctrl_handler = handler;
ov02b10->has_init_exp = false;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int ov02b10_check_sensor_id(struct ov02b10 *ov02b10,
struct i2c_client *client)
{
struct device *dev = &ov02b10->client->dev;
u8 id_h = 0, id_l = 0, id = 0;
int ret;
ret = ov02b10_read_reg(client, OV02B10_REG_CHIP_ID_H, &id_h);
ret |= ov02b10_read_reg(client, OV02B10_REG_CHIP_ID_L, &id_l);
id = SENSOR_ID(id_h, id_l);
if (id != OV02B10_CHIP_ID) {
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
return -ENODEV;
}
dev_info(dev, "Detected OV%06x sensor\n", OV02B10_CHIP_ID);
return 0;
}
static int ov02b10_configure_regulators(struct ov02b10 *ov02b10)
{
unsigned int i;
for (i = 0; i < OV02B10_NUM_SUPPLIES; i++)
ov02b10->supplies[i].supply = OV02B10_supply_names[i];
return devm_regulator_bulk_get(&ov02b10->client->dev,
OV02B10_NUM_SUPPLIES,
ov02b10->supplies);
}
static int ov02b10_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct ov02b10 *ov02b10;
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);
ov02b10 = devm_kzalloc(dev, sizeof(*ov02b10), GFP_KERNEL);
if (!ov02b10)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&ov02b10->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&ov02b10->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&ov02b10->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&ov02b10->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
ret = of_property_read_u32(node, OF_CAMERA_HDR_MODE,
&hdr_mode);
if (ret) {
hdr_mode = NO_HDR;
dev_warn(dev, " Get hdr mode failed! no hdr default\n");
}
ov02b10->cfg_num = ARRAY_SIZE(supported_modes);
for (i = 0; i < ov02b10->cfg_num; i++) {
if (hdr_mode == supported_modes[i].hdr_mode) {
ov02b10->cur_mode = &supported_modes[i];
break;
}
}
ov02b10->client = client;
ov02b10->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(ov02b10->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
ov02b10->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
if (IS_ERR(ov02b10->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
ov02b10->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_ASIS);
if (IS_ERR(ov02b10->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ov02b10->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(ov02b10->pinctrl)) {
ov02b10->pins_default =
pinctrl_lookup_state(ov02b10->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(ov02b10->pins_default))
dev_err(dev, "could not get default pinstate\n");
ov02b10->pins_sleep =
pinctrl_lookup_state(ov02b10->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(ov02b10->pins_sleep))
dev_err(dev, "could not get sleep pinstate\n");
} else {
dev_err(dev, "no pinctrl\n");
}
ret = ov02b10_configure_regulators(ov02b10);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&ov02b10->mutex);
sd = &ov02b10->subdev;
v4l2_i2c_subdev_init(sd, client, &ov02b10_subdev_ops);
ret = ov02b10_initialize_controls(ov02b10);
if (ret)
goto err_destroy_mutex;
ret = __ov02b10_power_on(ov02b10);
if (ret)
goto err_free_handler;
ret = ov02b10_check_sensor_id(ov02b10, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &ov02b10_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
ov02b10->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &ov02b10->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(ov02b10->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
ov02b10->module_index, facing,
OV02B10_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:
__ov02b10_power_off(ov02b10);
err_free_handler:
v4l2_ctrl_handler_free(&ov02b10->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&ov02b10->mutex);
return ret;
}
static int ov02b10_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov02b10 *ov02b10 = to_ov02b10(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&ov02b10->ctrl_handler);
mutex_destroy(&ov02b10->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__ov02b10_power_off(ov02b10);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id ov02b10_of_match[] = {
{ .compatible = "ovti,ov02b10" },
{},
};
MODULE_DEVICE_TABLE(of, ov02b10_of_match);
#endif
static const struct i2c_device_id ov02b10_match_id[] = {
{ "ovti,ov02b10", 0 },
{ },
};
static struct i2c_driver ov02b10_i2c_driver = {
.driver = {
.name = OV02B10_NAME,
.pm = &ov02b10_pm_ops,
.of_match_table = of_match_ptr(ov02b10_of_match),
},
.probe = &ov02b10_probe,
.remove = &ov02b10_remove,
.id_table = ov02b10_match_id,
};
#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
module_i2c_driver(ov02b10_i2c_driver);
#else
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&ov02b10_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&ov02b10_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
#endif
MODULE_DESCRIPTION("OmniVision ov02b10 sensor driver");
MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags