[RK3288][Android6.0] 移植笔记 --- Camera IC OV5640添加

本文链接：https://blog.youkuaiyun.com/kris_fei/article/details/53261148

本文详细记录了在RK3288平台上，将Android 6.0系统移植并适配OV5640相机模块的过程，包括驱动编写、HAL层配置及系统调用等关键步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Platform: ROCKCHIP
OS: Android 6.0
Kernel: 3.10.92

原理图连接:

1. 使用的是cif接口
2. I2C用的是3, 地址是0x30.

驱动:
原生代码中已经有对应的驱动,在
rk3288/kernel/drivers/media/video/ov5640.c

dts配置:
rk3288-cif-sensor.dtsi
ov5640{
   is_front = <1>;
   rockchip,power = <&gpio0 GPIO_C1 GPIO_ACTIVE_HIGH>;
   //rockchip,power_pmu_name1 = "rk818_ldo4";
   //rockchip,power_pmu_voltage1 = <2800000>;
   //rockchip,power_pmu_name2 = "rk818_ldo8";
   //rockchip,power_pmu_voltage2 = <1800000>;
   rockchip,powerdown = <&gpio2 GPIO_B6 GPIO_ACTIVE_HIGH>;
   //rockchip,powerdown_pmu = "";
   //rockchip,powerdown_pmu_voltage = <3000000>;
   pwdn_active = <ov5640_PWRDN_ACTIVE>;
   pwr_active = <PWR_ACTIVE_HIGH>;
   mir = <0>;
   flash_attach = <0>;
   //rockchip,flash = <>;
   flash_active = <0>;
   resolution = <ov5640_FULL_RESOLUTION>;
   powerup_sequence = <ov5640_PWRSEQ>;
   orientation = <0>;
   i2c_add = <ov5640_I2C_ADDR>;
   i2c_rata = <100000>;
   i2c_chl = <3>;
   cif_chl = <0>;
   mclk_rate = <24>;
};

cam_board_rk3288.xml
<CamDevie>
   <HardWareInfo>
       <Sensor>
           <SensorName name="OV5640" ></SensorName>
           <SensorDevID IDname="CAMSYS_DEVID_SENSOR_1A"></SensorDevID>
           <SensorHostDevID busnum="CAMSYS_DEVID_MARVIN" ></SensorHostDevID>
           <SensorI2cBusNum busnum="3"></SensorI2cBusNum>
           <SensorI2cAddrByte byte="2"></SensorI2cAddrByte>
           <SensorI2cRate rate="100000"></SensorI2cRate>
           <SensorAvdd name="NC" min="0" max="0" delay="0"></SensorAvdd>
           <SensorDvdd name="NC" min="0" max="0" delay="0"&