楼主 #1 2019-10-30 17:04:11 分享评论
- augyy
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- 注册时间： 2019-01-29
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請問大家!!全志A33 切換其他摄像头問題.
本人想切換 gc2145 摄像头,同時做以下步驟.但是不成!!
1. 把 gc2145.c 文件放起 \linux-3.4\drivers\media\video\sunxi-vfe\device\
加 “obj – m += gc2145.o” 起 makefile 檔案
2. 改 sys_config.fex 檔案
3. 加以下語句起 \linux-3.4\drivers\media\video\sunxi-vfe\sensor_info.c
Struct sensor_item sensor_list_t [] =
{"gc2145",0x78,SENSOR_YUV, PIXEL_NUM_2M, CORE_CLK_RATE_FOR_2M},
4. 加以下function 起 \linux-3.4\drivers\media\video\sunxi-vfe\ camera_detector\camera_list.c
#define __GC2145__
static void camera_pwr_on_gc2145(__u32 list_index, __camera_info_t *camera_info)
{
camera_gpio_set_status(camera_info->stby_pin, 1);
camera_gpio_set_status(camera_info->reset_pin, 1);
//power supply
camera_gpio_write(camera_info->stby_pin, camera_list[list_index].CSI_STBY_ON);
camera_gpio_write(camera_info->reset_pin, camera_list[list_index].CSI_RST_ON);
msleep(1);
clk_enable(camera_info->module_clk);
msleep(10);
camera_gpio_write(camera_info->pwr_pin, camera_list[list_index].CSI_PWR_ON);
msleep(10);
if(camera_info->dvdd)
{
if(camera_info->dvdd_vol > 0)
{
regulator_set_voltage(camera_info->dvdd,camera_info->dvdd_vol,camera_info->dvdd_vol);
}
else
{
list_print("dvdd_vol is NULL!! \n");
}
regulator_enable(camera_info->dvdd);
msleep(10);
}
if(camera_info->avdd)
{
if(camera_info->dvdd_vol > 0)
{
regulator_set_voltage(camera_info->avdd,camera_info->avdd_vol,camera_info->avdd_vol);
}
else
{
list_print("dvdd_vol is NULL!! \n");
}
regulator_enable(camera_info->avdd);
msleep(10);
}
if(camera_info->iovdd)
{
if(camera_info->dvdd_vol > 0)
{
regulator_set_voltage(camera_info->iovdd,camera_info->iovdd_vol,camera_info->iovdd_vol);
}
else
{
list_print("dvdd_vol is NULL!! \n");
}
regulator_enable(camera_info->iovdd);
msleep(10);
}
//standby off io
camera_gpio_write(camera_info->stby_pin, camera_list[list_index].CSI_STBY_OFF);
msleep(10);
camera_gpio_write(camera_info->reset_pin, camera_list[list_index].CSI_RST_OFF);
msleep(10);
camera_gpio_write(camera_info->reset_pin, camera_list[list_index].CSI_RST_ON);
msleep(10);
camera_gpio_write(camera_info->reset_pin, camera_list[list_index].CSI_RST_OFF);
msleep(10);
}
static void camera_pwr_off_gc2145(__u32 list_index, __camera_info_t *camera_info)
{
camera_gpio_write(camera_info->stby_pin, camera_list[list_index].CSI_STBY_ON);
msleep(10);
//reset on io
camera_gpio_write(camera_info->reset_pin, camera_list[list_index].CSI_RST_ON);
msleep(10);
//inactive mclk after power off
//power supply off
if(camera_info->iovdd) {
regulator_disable(camera_info->iovdd);
}
if(camera_info->avdd) {
regulator_disable(camera_info->avdd);
}
if(camera_info->dvdd) {
regulator_disable(camera_info->dvdd);
}
camera_gpio_write(camera_info->pwr_pin, camera_list[list_index].CSI_PWR_OFF);
msleep(10);
//standby of io
clk_disable(camera_info->module_clk);
//set the io to hi-z
camera_gpio_set_status(camera_info->reset_pin, 0);//set the gpio to input
// camera_gpio_set_status(camera_info->stby_pin, 0);//set the gpio to input
}
static __s32 camera_detect_gc2145(__u32 list_index, struct i2c_adapter *i2c_adap)
{
char reg_num[1], value[1];
__s32 ret = 0;
__u32 i2c_addr = camera_list[list_index].i2c_addr;
__u32 addr_step = camera_list[list_index].REG_ADDR_STEP;
__u32 data_step = camera_list[list_index].REG_DATA_STEP;
list_print("try to detect gc2145 ... \n");
reg_num[0] = 0xf0;
ret = camera_i2c_read(i2c_adap, reg_num, value, i2c_addr, addr_step, data_step);
if (ret < 0) {
return ret;
}
if(value[0] !=0x21)
return -ENODEV;
reg_num[0] = 0xf1;
ret = camera_i2c_read(i2c_adap, reg_num, value, i2c_addr, addr_step, data_step);
if (ret < 0) {
return ret;
}
if(value[0] !=0x55)
return -ENODEV;
list_print("detect gc2145 success!!\n");
return 0;
}
__camera_list_t camera_list[MAX_CAMERA_LIST_ITEM] = {
... ...
CAMERA_LIST_ITEM_INIT(gc2145, 1, 1, 0x78, 1, 0, 0, 1, 1, 0),
};
5. 改了 linux-3.4\drivers\media\video\sunxi-vfe\ camera_detector\camera_list.h
#define MAX_CAMERA_LIST_ITEM 26 //在原来的基础上加一
出現以下問題.
VFE_ERR Error registering v4l2 subdevice No such device
VFE_ERR vfe sensor register check error at input_num = 0
最近编辑记录 augyy (2019-10-30 17:08:28)
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