1、rkisp框架下ov2710dts配置
&rkisp1_0 {
status = "okay";
port {
#address-cells = <1>;
#size-cells = <0>;
isp0_mipi_in: endpoint@0 {
reg = <0>;
remote-endpoint = <&dphy_rx0_out>;
};
};
};
&mipi_dphy_rx0 {
status = "okay";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
mipi_in_ucam0: endpoint@1 {
reg = <1>;
remote-endpoint = <&ucam_out0>;
data-lanes = <1>;
};
};
port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
dphy_rx0_out: endpoint@0 {
reg = <0>;
remote-endpoint = <&isp0_mipi_in>;
};
};
};
};
&isp0_mmu {
status = "okay";
};2、i2c设备节点配置
ov2710: ov2710@36 {
compatible = "ovti,ov2710";
status = "okay";
reg = <0x36>;
clocks = <&cru SCLK_CIF_OUT>;
clock-names = "xvclk";
/* conflict with csi-ctl-gpios */
/* reset-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>; */
pwdn-gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
dovdd-supply = <&vcc1v8_dvp>;
pinctrl-names = "default";
pinctrl-0 = <&cif_clkout>;
rockchip,camera-module-index = <0>;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "CMK-CT0116";
rockchip,camera-module-lens-name = "Largan-50013A1";
port {
ucam_out0: endpoint {
remote-endpoint = <&mipi_in_ucam0>;
data-lanes = <1>;
};
};
};3、添加库文件
将rkisp-engine-2.0.1_arm64.deb拷贝到/home/linaro目录下
添加库方式1：
dpkg -i rkisp-engine-2.0.1_arm64.deb
添加库方式二：
若库无法使用方法一进行添加，可使用下面方法进行操作
解压
dpkg -X rkisp-engine-2.0.1_arm64.deb
将对应文件拷贝到对应文件夹下面4、测试
添加iq文件
上述操作已添加所有文件，但在上层应用中调用的iq文件名与系统中存放的iq文件名不符，使用ln命令生成符号链接文件进行使用
ln -s ov2710_default_default.xml ov2710_CMK-CT0116_Largan-50013A1.xml
摄像头预览
gst-launch-1.0 rkv4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! videoconvert ! kmssink &
录像
当前gstream录像时首先会关闭预览，然后开始写入视频文件，在录像开始的前几帧图片由于重新调节3A效果，图片颜色不正常，后面颜色恢复正常
gst-launch-1.0 -vvv v4l2src device=/dev/video1 ! video/x-raw,format=NV12,width=1920,height=1080 ! videoconvert ! filesink location=/tmp/nv12.yuv
抓图
当前rkisp框架会加载出5个video节点其中有两个节点可进行预览，采集图片等操作，当前抓图使用方法，打开其中一个可预览节点进行预览，抓图时，调用另一个节点进行抓图。
gst-launch-1.0 -vvv v4l2src device=/dev/video1 num-buffers=1 ! video/x-raw,format=NV12,width=1920,height=1080 ! videoconvert ! filesink location=/tmp/nv12.out5、驱动源码
// SPDX-License-Identifier: GPL-2.0
/*
* ov2710 driver
*
* Copyright (C) 2019 Fuzhou Rockchip Electronics Co., Ltd.
*/
#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>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
/* 45Mhz * 4 Binning */
#define OV2710_XVCLK_FREQ 24000000
#define REG_NULL 0xFFFF
#define PAGE_SELECT_REG 0xfd
#define PAGE_ZERO 0x00
#define PAGE_ONE 0x01
#define PAGE_TWO 0x02
#define PAGE_OTP 0x04
//PAGE0
#define OV2710_PIDH_ADDR 0x300A
#define OV2710_PIDL_ADDR 0x300B
#define OV2710_PIDH_MAGIC 0x27
#define OV2710_PIDL_MAGIC 0x10
//PAGE1
#define STREAM_CTRL_REG 0xa0
#define STREAM_ON 0x01
#define STREAM_OFF 0x00
#define UPDOWN_MIRROR_REG 0x3818
#define H_V_NORMAL 0x80
#define H_MIRROR 0x40
#define V_FLIP 0x20
#define MIRROR_AND_FLIP 0x03
#define OV2710_VTS_HIGH_REG 0x380e
#define OV2710_VTS_LOW_REG 0x380f
#define OV2710_COARSE_INTG_TIME_MIN 1
#define OV2710_COARSE_INTG_TIME_MAX 4
#define OV2710_VTS_ENABLE_REG 0x3503
#define OV2710_VTS_ENABLE_VALUE 0x07
#define OV2710_FRAME_SYNC_REG 0x4810
#define OV2710_FRAME_SYNC_VALUE 0xff
#define OV2710_REG_TEST_PATTERN 0xb2
#define OV2710_HTS_HIGH_REG 0x380c
#define OV2710_HTS_LOW_REG 0x380d
#define OV2710_TEST_PATTERN_ENABLE 0xfe
#define OV2710_TEST_PATTERN_DISABLE BIT(0)
#define OV2710_FINE_INTG_TIME_MIN 0
#define OV2710_FINE_INTG_TIME_MAX_MARGIN 0
#define OV2710_COARSE_INTG_TIME_MIN 1
#define OV2710_COARSE_INTG_TIME_MAX_MARGIN 4
#define OV2710_AEC_PK_LONG_EXPO_3RD_REG 0x3500
#define OV2710_AEC_PK_LONG_EXPO_2ND_REG 0x3501 /* Exposure Bits 8-15 */
#define OV2710_AEC_PK_LONG_EXPO_1ST_REG 0x3502 /* Exposure Bits 0-7 */
#define OV2710_FETCH_3RD_BYTE_EXP(VAL) (((VAL) >> 12) & 0xF) /* 4 Bits */
#define OV2710_FETCH_2ND_BYTE_EXP(VAL) (((VAL) >> 4) & 0xFF)
#define OV2710_FETCH_1ST_BYTE_EXP(VAL) (((VAL) & 0x0F) << 4)
#define OV2710_AEC_PK_GAIN_REG 0x350b /* GAIN Bits 0 -7 */
#define OV2710_FETCH_LSB_GAIN(VAL) (VAL & 0x00FF)
#define OV2710_FETCH_MSB_GAIN(VAL) ((VAL >> 8) & 0x01)
#define OV2710_EXPOSURE_MIN 4
#define OV2710_EXPOSURE_STEP 1
#define OV2710_VTS_MAX 0xfff
#define ANALOG_GAIN_MIN 0x10
#define ANALOG_GAIN_MAX 0xff
#define ANALOG_GAIN_STEP 1
#define ANALOG_GAIN_DEFAULT 0x10
#define OV2710_REG_TYPE_TIMEOUT 0x00
#define OV2710_NAME "ov2710"
static const char * const ov2710_supply_names[] = {
"dovdd", /* Digital I/O power */
};
#define OV2710_NUM_SUPPLIES ARRAY_SIZE(ov2710_supply_names)
struct regval {
u16 addr;
u8 val;
};
struct ov2710_mode {
u32 width;
u32 height;
u32 max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
const struct regval *reg_list;
};
struct ov2710 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[OV2710_NUM_SUPPLIES];
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;
const struct ov2710_mode *cur_mode;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
};
#define to_ov2710(sd) container_of(sd, struct ov2710, subdev)
/*
* Base sensor configs
* ov2710_init_tab_1920_1080_30fps
* MCLK:24MHz 1920x1080 30fps mipi 2lane 420Mbps/lane
*/
static struct regval ov2710_1920_1080_30fps[] = {
{0x3008, 0x82},
{0x3008, 0x42},
{0x4201, 0x00},
{0x4202, 0x0f},
{0x3103, 0x93},
{0x3017, 0x7f},
{0x3018, 0xfc},
{0x3706, 0x61},
{0x3712, 0x0c},
{0x3630, 0x6d},
{0x3800, 0x01},
{0x3801, 0xb4},
{0x3802, 0x00},
{0x3803, 0x0a},
{0x3818, 0x80},
{0x3804, 0x07},
{0x3805, 0x80},
{0x3806, 0x04},
{0x3807, 0x38},
{0x3808, 0x07},
{0x3809, 0x80},
{0x380a, 0x04},
{0x380b, 0x38},
{0x3810, 0x10},
{0x3811, 0x06},
{0x3812, 0x00},
{0x3813, 0x00},
{0x3621, 0x04},
{0x3604, 0x60},
{0x3603, 0xa7},
{0x3631, 0x26},
{0x3600, 0x04},
{0x3620, 0x37},
{0x3623, 0x00},
{0x3702, 0x9e},
{0x3703, 0x5c},
{0x3704, 0x40},
{0x370d, 0x0f},
{0x3713, 0x9f},
{0x3714, 0x4c},
{0x3710, 0x9e},
{0x3801, 0xc4},
{0x3605, 0x05},
{0x3606, 0x3f},
{0x302d, 0x90},
{0x370b, 0x40},
{0x3716, 0x31},
{0x3707, 0x52},
{0x380d, 0x74},
{0x5181, 0x20},
{0x518f, 0x00},
{0x4301, 0xff},
{0x4303, 0x00},
{0x3a00, 0x78},
{0x300f, 0x88},
{0x3011, 0x28},
{0x3a1a, 0x06},
{0x3a18, 0x00},
{0x3a19, 0x7a},
{0x3a13, 0x54},
{0x382e, 0x0f},
{0x381a, 0x1a},
{0x401d, 0x02},
{0x5688, 0x03},
{0x5684, 0x07},
{0x5685, 0xa0},
{0x5686, 0x04},
{0x5687, 0x43},
{0x3011, 0x0a},
{0x300f, 0x8a},
{0x3017, 0x00},
{0x3018, 0x00},
{0x300e, 0x04},
{0x4801, 0x0f},
{0x300f, 0xc3},
{0x3a0f, 0x40},
{0x3a10, 0x38},
{0x3a1b, 0x48},
{0x3a1e, 0x30},
{0x3a11, 0x90},
{0x3a1f, 0x10},
{0x380c, 0x09},/* HTS H */
{0x380d, 0x74},/* HTS L */
{0x380e, 0x04},/* VTS H */
{0x380f, 0x50},/* VTS L */
{0x3500, 0x00},
{0x3501, 0x28},
{0x3502, 0x90},
{0x3503, 0x07},
{0x350a, 0x00},
{0x350b, 0x1f},
{0x5000, 0x5f},
{0x5001, 0x4e},
{0x3406, 0x01},
{0x3400, 0x04},
{0x3401, 0x00},
{0x3402, 0x04},
{0x3403, 0x00},
{0x3404, 0x04},
{0x3405, 0x00},
{0x4800, 0x24},
{0x4201, 0x00},
{0x4202, 0x00},
{0x3008, 0x02},
{OV2710_REG_TYPE_TIMEOUT, 40},
{0x3008, 0x42},
{0x4201, 0x00},
{0x4202, 0x0f}
};
#define HTS_DEF 0x0974
#define VTS_DEF 0x0450
#define EXP_DEF 0x2890
#define MAX_FPS 30
static const struct ov2710_mode supported_modes[] = {
{
.width = 1920,
.height = 1080,
.max_fps = MAX_FPS,
.exp_def = 0x18f,
.hts_def = HTS_DEF,
.vts_def = VTS_DEF,
.reg_list = ov2710_1920_1080_30fps,
},
};
#define OV2710_LINK_FREQ_420MHZ 400000000
#define OV2710_PIXEL_RATE (MAX_FPS * HTS_DEF * VTS_DEF)
static const s64 link_freq_menu_items[] = {
OV2710_LINK_FREQ_420MHZ
};
static const char * const ov2710_test_pattern_menu[] = {
"Disabled",
"Vertical Color",
};
/* Write registers up to 4 at a time */
static int ov2710_write_reg(struct i2c_client *client, u16 reg,
u32 val)
{
u32 buf_i, val_i;
u8 buf[6];
u8 *val_p;
__be32 val_be;
u32 len = 1;
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 ov2710_write_array(struct i2c_client *client,
const struct regval *regs)
{
int i, ret = 0;
i = 0;
while (regs[i].addr != REG_NULL) {
if (regs[i].addr == OV2710_REG_TYPE_TIMEOUT) {
usleep_range(regs[i].val * 1000, regs[i].val * 2000);
i++;
continue;
}
ret = ov2710_write_reg(client, regs[i].addr, regs[i].val);
if (ret) {
dev_err(&client->dev, "%s failed !\n", __func__);
break;
}
i++;
}
return ret;
}
/* Read registers up to 4 at a time */
/* sensor register read */
static int ov2710_read_reg(struct i2c_client *client, u16 reg,
u32 *val)
{
struct i2c_msg msgs[2];
u8 *data_be_p;
u32 len = 1;
__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 *)®_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 ov2710_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov2710 *ov2710 = to_ov2710(sd);
const struct ov2710_mode *mode;
s64 h_blank, vblank_def;
mutex_lock(&ov2710->mutex);
mode = &supported_modes[0];
fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
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(&ov2710->mutex);
return -ENOTTY;
#endif
} else {
ov2710->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(ov2710->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(ov2710->vblank, vblank_def,
OV2710_VTS_MAX - mode->height,
1, vblank_def);
}
mutex_unlock(&ov2710->mutex);
return 0;
}
static int ov2710_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov2710 *ov2710 = to_ov2710(sd);
const struct ov2710_mode *mode = ov2710->cur_mode;
mutex_lock(&ov2710->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(&ov2710->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&ov2710->mutex);
return 0;
}
static int ov2710_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index != 0)
return -EINVAL;
code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
return 0;
}
static int ov2710_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
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 ov2710_enable_test_pattern(struct ov2710 *ov2710, u32 pattern)
{
int ret;
u32 val;
ret = ov2710_read_reg(ov2710->client, OV2710_REG_TEST_PATTERN, &val);
if (ret < 0)
return ret;
switch (pattern) {
case 0:
val &= ~OV2710_TEST_PATTERN_ENABLE;
break;
case 1:
val |= OV2710_TEST_PATTERN_ENABLE;
break;
}
return ov2710_write_reg(ov2710->client,
OV2710_REG_TEST_PATTERN,
val);
}
static void ov2710_get_module_inf(struct ov2710 *ov2710,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, OV2710_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, ov2710->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, ov2710->len_name, sizeof(inf->base.lens));
}
static long ov2710_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct ov2710 *ov2710 = to_ov2710(sd);
long ret = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
ov2710_get_module_inf(ov2710, (struct rkmodule_inf *)arg);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long ov2710_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
//struct rkmodule_awb_cfg *cfg;
long ret;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = ov2710_ioctl(sd, cmd, inf);
if (!ret)
ret = copy_to_user(up, inf, sizeof(*inf));
kfree(inf);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __ov2710_start_stream(struct ov2710 *ov2710)
{
int ret;
printk("[zwei] -- %s -- %d \n",__FUNCTION__,__LINE__);
ret = ov2710_write_array(ov2710->client, ov2710->cur_mode->reg_list);
printk("[zwei] -- %s -- %d -- ret = %d\n",__FUNCTION__,__LINE__,ret);
if (ret)
return ret;
//ret = ov2710_write_reg(ov2710->client, PAGE_SELECT_REG, PAGE_ONE);
//if (ret)
// return ret;
/* In case these controls are set before streaming */
mutex_unlock(&ov2710->mutex);
ret = v4l2_ctrl_handler_setup(&ov2710->ctrl_handler);
mutex_lock(&ov2710->mutex);
printk("[zwei] -- %s -- %d \n",__FUNCTION__,__LINE__);
if (ret)
return ret;
ret = ov2710_write_reg(ov2710->client, 0x3008, 0x02);
ret |= ov2710_write_reg(ov2710->client, 0x4201, 0x00);
ret |= ov2710_write_reg(ov2710->client, 0x4202, 0x00);
printk("[zwei] -- %s -- %d \n",__FUNCTION__,__LINE__);
return ret;
}
static int __ov2710_stop_stream(struct ov2710 *ov2710)
{
int ret;
ret = ov2710_write_reg(ov2710->client, 0x3008, 0x42);
ret |= ov2710_write_reg(ov2710->client, 0x4201, 0x00);
ret |= ov2710_write_reg(ov2710->client, 0x4202, 0x0f);
return ret;
}
static int ov2710_s_stream(struct v4l2_subdev *sd, int on)
{
struct ov2710 *ov2710 = to_ov2710(sd);
struct i2c_client *client = ov2710->client;
int ret = 0;
mutex_lock(&ov2710->mutex);
on = !!on;
if (on == ov2710->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 = __ov2710_start_stream(ov2710);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__ov2710_stop_stream(ov2710);
pm_runtime_put(&client->dev);
}
ov2710->streaming = on;
unlock_and_return:
mutex_unlock(&ov2710->mutex);
return ret;
}
static int __ov2710_power_on(struct ov2710 *ov2710)
{
int ret;
struct device *dev = &ov2710->client->dev;
if (!IS_ERR(ov2710->pwdn_gpio)) {
gpiod_set_value_cansleep(ov2710->pwdn_gpio, 1);
usleep_range(2000, 5000);
}
ret = regulator_bulk_enable(OV2710_NUM_SUPPLIES, ov2710->supplies);
usleep_range(20000, 50000);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(ov2710->pwdn_gpio)) {
gpiod_set_value_cansleep(ov2710->pwdn_gpio, 0);
usleep_range(2000, 5000);
}
if (!IS_ERR(ov2710->reset_gpio)) {
gpiod_set_value_cansleep(ov2710->reset_gpio, 1);
usleep_range(2000, 5000);
}
if (!IS_ERR(ov2710->xvclk)) {
ret = clk_prepare_enable(ov2710->xvclk);
if (ret < 0)
dev_info(dev, "Failed to enable xvclk\n");
}
usleep_range(20000, 30000);
return 0;
disable_clk:
clk_disable_unprepare(ov2710->xvclk);
return ret;
}
static void __ov2710_power_off(struct ov2710 *ov2710)
{
return;
if (!IS_ERR(ov2710->pwdn_gpio))
gpiod_set_value_cansleep(ov2710->pwdn_gpio, 0);
clk_disable_unprepare(ov2710->xvclk);
if (!IS_ERR(ov2710->reset_gpio))
gpiod_set_value_cansleep(ov2710->reset_gpio, 1);
regulator_bulk_disable(OV2710_NUM_SUPPLIES, ov2710->supplies);
}
static int ov2710_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov2710 *ov2710 = to_ov2710(sd);
return __ov2710_power_on(ov2710);
}
static int ov2710_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov2710 *ov2710 = to_ov2710(sd);
__ov2710_power_off(ov2710);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int ov2710_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct ov2710 *ov2710 = to_ov2710(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct ov2710_mode *def_mode = &supported_modes[0];
printk("[zwei] -- %s -- %d \n",__FUNCTION__,__LINE__);
mutex_lock(&ov2710->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&ov2710->mutex);
/* No crop or compose */
printk("[zwei] -- %s -- %d \n",__FUNCTION__,__LINE__);
return 0;
}
#endif
static const struct dev_pm_ops ov2710_pm_ops = {
SET_RUNTIME_PM_OPS(ov2710_runtime_suspend,
ov2710_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops ov2710_internal_ops = {
.open = ov2710_open,
};
#endif
static const struct v4l2_subdev_core_ops ov2710_core_ops = {
.ioctl = ov2710_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = ov2710_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops ov2710_video_ops = {
.s_stream = ov2710_s_stream,
};
static const struct v4l2_subdev_pad_ops ov2710_pad_ops = {
.enum_mbus_code = ov2710_enum_mbus_code,
.enum_frame_size = ov2710_enum_frame_sizes,
.get_fmt = ov2710_get_fmt,
.set_fmt = ov2710_set_fmt,
};
static const struct v4l2_subdev_ops ov2710_subdev_ops = {
.core = &ov2710_core_ops,
.video = &ov2710_video_ops,
.pad = &ov2710_pad_ops,
};
static int ov2710_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct ov2710 *ov2710 = container_of(ctrl->handler,
struct ov2710, ctrl_handler);
struct i2c_client *client = ov2710->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 = ov2710->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(ov2710->exposure,
ov2710->exposure->minimum, max,
ov2710->exposure->step,
ov2710->exposure->default_value);
break;
}
if (pm_runtime_get(&client->dev) <= 0)
return 0;
//ret = ov2710_write_reg(client, PAGE_SELECT_REG, PAGE_ONE);
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
ret |= ov2710_write_reg(client,
OV2710_AEC_PK_LONG_EXPO_3RD_REG,
OV2710_FETCH_3RD_BYTE_EXP(ctrl->val));
ret |= ov2710_write_reg(client,
OV2710_AEC_PK_LONG_EXPO_2ND_REG,
OV2710_FETCH_2ND_BYTE_EXP(ctrl->val));
ret |= ov2710_write_reg(client,
OV2710_AEC_PK_LONG_EXPO_1ST_REG,
OV2710_FETCH_1ST_BYTE_EXP(ctrl->val));
break;
case V4L2_CID_ANALOGUE_GAIN:
// ret |= ov2710_write_reg(client, OV2710_AEC_PK_GAIN_REG,
// ctrl->val);
ret |= ov2710_write_reg(client,
0x350a,
OV2710_FETCH_MSB_GAIN(ctrl->val));
ret |= ov2710_write_reg(client,
0x350b,
OV2710_FETCH_LSB_GAIN(ctrl->val));
break;
case V4L2_CID_VBLANK:
ret |= ov2710_write_reg(client, OV2710_VTS_ENABLE_REG,
OV2710_VTS_ENABLE_VALUE);
ret |= ov2710_write_reg(client, OV2710_VTS_LOW_REG,
(ctrl->val + ov2710->cur_mode->height) & 0xFF);
ret |= ov2710_write_reg(client, OV2710_VTS_HIGH_REG,
((ctrl->val + ov2710->cur_mode->height) >> 8) & 0x0F);
break;
case V4L2_CID_TEST_PATTERN:
ret = ov2710_enable_test_pattern(ov2710, ctrl->val);
break;
default:
dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
__func__, ctrl->id, ctrl->val);
break;
}
//ret |= ov2710_write_reg(client, OV2710_FRAME_SYNC_REG,
// OV2710_FRAME_SYNC_VALUE);
pm_runtime_put(&client->dev);
return ret;
}
static const struct v4l2_ctrl_ops ov2710_ctrl_ops = {
.s_ctrl = ov2710_set_ctrl,
};
static int ov2710_initialize_controls(struct ov2710 *ov2710)
{
const struct ov2710_mode *mode;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl *ctrl;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
handler = &ov2710->ctrl_handler;
mode = ov2710->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 7);
if (ret)
return ret;
handler->lock = &ov2710->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, OV2710_PIXEL_RATE, 1, OV2710_PIXEL_RATE);
h_blank = mode->hts_def - mode->width;
ov2710->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (ov2710->hblank)
ov2710->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
ov2710->vblank = v4l2_ctrl_new_std(handler, &ov2710_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
OV2710_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 4;
ov2710->exposure = v4l2_ctrl_new_std(handler, &ov2710_ctrl_ops,
V4L2_CID_EXPOSURE, OV2710_EXPOSURE_MIN,
exposure_max, OV2710_EXPOSURE_STEP,
mode->exp_def);
ov2710->anal_gain = v4l2_ctrl_new_std(handler, &ov2710_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
ANALOG_GAIN_DEFAULT);
ov2710->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&ov2710_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(ov2710_test_pattern_menu) - 1,
0, 0, ov2710_test_pattern_menu);
if (handler->error) {
ret = handler->error;
dev_err(&ov2710->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
ov2710->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int ov2710_check_sensor_id(struct ov2710 *ov2710,
struct i2c_client *client)
{
struct device *dev = &ov2710->client->dev;
int ret;
u32 pidh = 0x55, pidl = 0xaa;
//ret = ov2710_write_reg(ov2710->client, PAGE_SELECT_REG, PAGE_ZERO);
ret = ov2710_read_reg(ov2710->client, OV2710_PIDH_ADDR, &pidh);
ret |= ov2710_read_reg(ov2710->client, OV2710_PIDL_ADDR, &pidl);
if (IS_ERR_VALUE(ret)) {
dev_err(dev,
"register read failed, camera module powered off?\n");
goto err;
}
if ((pidh == OV2710_PIDH_MAGIC) && (pidl == OV2710_PIDL_MAGIC)) {
dev_info(dev,
"Found cameraID 0x%02x%02x\n", pidh, pidl);
} else {
dev_err(dev,
"wrong camera ID, expected 0x%02x%02x, detected 0x%02x%02x\n",
OV2710_PIDH_MAGIC, OV2710_PIDL_MAGIC, pidh, pidl);
ret = -EINVAL;
goto err;
}
return 0;
err:
dev_err(dev, "failed with error (%d)\n", ret);
return ret;
}
static int ov2710_configure_regulators(struct ov2710 *ov2710)
{
size_t i;
for (i = 0; i < OV2710_NUM_SUPPLIES; i++)
ov2710->supplies[i].supply = ov2710_supply_names[i];
return devm_regulator_bulk_get(&ov2710->client->dev,
OV2710_NUM_SUPPLIES,
ov2710->supplies);
}
static int ov2710_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct ov2710 *ov2710;
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);
ov2710 = devm_kzalloc(dev, sizeof(*ov2710), GFP_KERNEL);
if (!ov2710)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&ov2710->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&ov2710->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&ov2710->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&ov2710->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
ov2710->client = client;
ov2710->cur_mode = &supported_modes[0];
ov2710->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(ov2710->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
ret = clk_set_rate(ov2710->xvclk, OV2710_XVCLK_FREQ);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
return ret;
}
if (clk_get_rate(ov2710->xvclk) != OV2710_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ov2710->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ov2710->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
ov2710->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(ov2710->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ret = ov2710_configure_regulators(ov2710);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&ov2710->mutex);
sd = &ov2710->subdev;
v4l2_i2c_subdev_init(sd, client, &ov2710_subdev_ops);
ret = ov2710_initialize_controls(ov2710);
if (ret)
goto err_destroy_mutex;
ret = __ov2710_power_on(ov2710);
if (ret)
goto err_free_handler;
ret = ov2710_check_sensor_id(ov2710, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &ov2710_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
ov2710->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
ret = media_entity_init(&sd->entity, 1, &ov2710->pad, 0);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(ov2710->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
ov2710->module_index, facing,
OV2710_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:
__ov2710_power_off(ov2710);
err_free_handler:
v4l2_ctrl_handler_free(&ov2710->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&ov2710->mutex);
return ret;
}
static int ov2710_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov2710 *ov2710 = to_ov2710(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&ov2710->ctrl_handler);
mutex_destroy(&ov2710->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__ov2710_power_off(ov2710);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id ov2710_of_match[] = {
{ .compatible = "ovti,ov2710" },
{},
};
MODULE_DEVICE_TABLE(of, ov2710_of_match);
#endif
static const struct i2c_device_id ov2710_match_id[] = {
{ "ovti,ov2710", 0 },
{ },
};
static struct i2c_driver ov2710_i2c_driver = {
.driver = {
.name = OV2710_NAME,
.pm = &ov2710_pm_ops,
.of_match_table = of_match_ptr(ov2710_of_match),
},
.probe = &ov2710_probe,
.remove = &ov2710_remove,
.id_table = ov2710_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&ov2710_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&ov2710_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("OmniVision ov2710 sensor driver");
MODULE_LICENSE("GPL v2");
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