mtk6739 camera驱动

最新推荐文章于 2024-06-17 10:02:29 发布

xwpc702

最新推荐文章于 2024-06-17 10:02:29 发布

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分类专栏： C语言 mtk

本文链接：https://blog.youkuaiyun.com/xwpc702/article/details/85797171

kernel-4.4\drivers\misc\mediatek\imgsensor\src\common\v1

imgsensor.c

imgsensor_probe

--->imgsensor_i2c_create();

imgsensor_i2c.c

imgsensor_i2c_create()

---->i2c_add_driver

kernel-4.4\drivers\misc\mediatek\imgsensor\src\mt6739\camera_hw imgsensor_cfg_table.h中有如下定义

#define IMGSENSOR_I2C_OF_DRV_NAME_0 "mediatek,camera_main" // 匹配后摄的驱动
#define IMGSENSOR_I2C_OF_DRV_NAME_1 "mediatek,camera_sub" // 匹配后摄的驱动
#define IMGSENSOR_I2C_OF_DRV_NAME_2 "mediatek,camera_main_two"

mediatek,camera_main 、mediatek,camera_sub这两个字串在codegen.dws文件中匹配。dws 用工具可查看

camera 驱动文件 kernel-4.4\drivers\misc\mediatek\imgsensor\src\common\v1 imgsensor_i2c.c

有如下定义：

#ifdef CONFIG_OF
static const struct of_device_id gof_device_id_0[] = {
   { .compatible = IMGSENSOR_I2C_OF_DRV_NAME_0, }, //后摄
   {}
};
static const struct of_device_id gof_device_id_1[] = { //前摄
{ .compatible = IMGSENSOR_I2C_OF_DRV_NAME_1, },
   {}
};
static const struct of_device_id gof_device_id_2[] = {
   { .compatible = IMGSENSOR_I2C_OF_DRV_NAME_2, },
   {}
};
#endif

i2c driver 注册结构体

static struct i2c_driv