手机摄像头驱动移植办法
一、驱动源码包结构OV13850摄像头在MTK6592平台，驱动移植方法，拿到的驱动源码包解压后得到hal和kernel两个目录文件，源码目录结构如下所示：13850-6592-driver-10-28.7z
|--hal
||--camera_AE_PLineTable_ov13850mipiraw.h
||--camera_calibration_cam_cal.cpp
||--camera_flicker_para_ov13850mipiraw.cpp
||--camera_info_ov13850mipiraw.h
||--camera_isp_lsc_ov13850mipiraw.h
||--camera_isp_pca_ov13850mipiraw.h
||--camera_isp_regs_ov13850mipiraw.h
||--camera_tsf_data_ov13850mipiraw.h
||--camera_tsf_para_ov13850mipiraw.h
||--camera_tuning_para_ov13850mipiraw.cpp
||--config.ftbl.ov13850_mipi_raw.h
|--kernel
||--ov13850mipiraw_Camera_Sensor_para.h
||--ov13850mipiraw_CameraCustomized.h
||--ov13850mipiraw_Sensor.c
||--ov13850mipiraw_Sensor.h
二、ov13850驱动移植记录
1、kernel
Sensor：
[*]在mediatek\custom\common\kernel\imgsensor\目录下增加ov13850_mipi_raw文件夹，把驱动源码kernel目录中所有文件copy进来。
[*]修改mediatek\custom\common\kernel\imgsensor\inc\kd_imgsensor.h文件，增加ov13850 SENSOR_ID和SENSOR_DRVNAME定义
[*]#define OV13850_SENSOR_ID 0xD850
[*]#define SENSOR_DRVNAME_OV13850_MIPI_RAW "ov13850mipiraw"
[*]修改mediatek\custom\common\kernel\imgsensor\src\kd_sensorlist.h
增加OV13850_MIPI_RAW_SensorInit函数声明
[*]UINT32 OV13850_MIPI_RAW_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
在kdSensorList数组中增加OV13850配置
[*]ACDK_KD_SENSOR_INIT_FUNCTION_STRUCT kdSensorList =
[*]{
[*]...
[*]#if defined(OV13850_MIPI_RAW)
[*] {OV13850_SENSOR_ID, SENSOR_DRVNAME_OV13850_MIPI_RAW, OV13850_MIPI_RAW_SensorInit},
[*]#endif
[*]...
[*]}
[*]在mediatek\custom\wind92_wet_tdd\kernel\camera\camera\kd_camera_hw.c里，增加对OV13850的供电配置，参考OV12830和datasheet。由于OV12830和OV13850供电配置一样，所以copy12830，更改下名字即可。
[*]int kdCISModulePowerOn(CAMERA_DUAL_CAMERA_SENSOR_ENUM SensorIdx, char *currSensorName, BOOL On, char* mode_name)
[*]{
[*]//...
[*]else if (currSensorName && (0 == strcmp(SENSOR_DRVNAME_OV13850_MIPI_RAW,currSensorName)))
[*]{
[*] printk("MYCAT kdCISModulePowerOnSENSOR_DRVNAME_OV13850_MIPI_RAW \n");
[*] printk("MYCAT OV13850_RAW idx:%d \n",SensorIdx);
[*] #ifdef__MAINSENSOR_USE_LDO_1_2V__
[*]
[*] if (mt_set_gpio_pull_enable(CAMERA_POWER_VCAM_D_LDO_PIN, GPIO_PULL_DISABLE)) {PK_DBG(" CAMERA_POWER_VCAM_D_LDO_PIN pull failed! \n"); }
[*] if (mt_set_gpio_mode(CAMERA_POWER_VCAM_D_LDO_PIN, GPIO_MODE_00)){PK_DBG(" CAMERA_POWER_VCAM_D_LDO_PIN mode failed! \n");}
[*] if (mt_set_gpio_dir(CAMERA_POWER_VCAM_D_LDO_PIN,GPIO_DIR_OUT)) {PK_DBG(" CAMERA_POWER_VCAM_D_LDO_PIN dir failed! \n");}
[*] if (mt_set_gpio_out(CAMERA_POWER_VCAM_D_LDO_PIN,GPIO_OUT_ONE)) {PK_DBG(" CAMERA_POWER_VCAM_D_LDO_PIN out failed! \n");}
[*]
[*] #else
[*]
[*] // printk("MYCAT S5KH2_RAW POWER ON LDO D\n");
[*] if (TRUE != hwPowerOn(CAMERA_POWER_VCAM_D, VOL_1200,mode_name))
[*] {
[*] PK_DBG(" Fail to enable digital power\n");
[*] //return -EIO;
[*] goto _kdCISModulePowerOn_exit_;
[*] }
[*]
[*]
[*] #endif
[*]
[*] //printk("MYCAT S5KH2_RAW POWER ON LDO A\n");
[*]
[*] if (TRUE != hwPowerOn(CAMERA_POWER_VCAM_A, VOL_2800,mode_name))
[*] {
[*]<span style="white-space:pre"> </span> PK_DBG(" Fail to enable analog power\n");
[*] //return -EIO;
[*] goto _kdCISModulePowerOn_exit_;
[*] }
[*]
[*] //printk("MYCAT S5KH2_RAW POWER ON LDO D2\n");
[*]
[*] if (TRUE != hwPowerOn(CAMERA_POWER_VCAM_D2, VOL_1800,mode_name))
[*] {
[*] PK_DBG(" Fail to enable digital power\n");
[*] //return -EIO;
[*] goto _kdCISModulePowerOn_exit_;
[*] }
[*] //printk("MYCAT S5KH2_RAW POWER ON LDO A2\n");
[*] if (TRUE != hwPowerOn(CAMERA_POWER_VCAM_A2, VOL_2800,mode_name))
[*] {
[*] PK_DBG(" Fail to enable analog power\n");
[*] //return -EIO;
[*] goto _kdCISModulePowerOn_exit_;
[*] }
[*] msleep(5);
[*]
[*] //disable inactive sensor
[*] if (pinSetIdx == 0 || pinSetIdx == 2)
[*] {//disable sub
[*] <span style="white-space:pre"> </span>if (GPIO_CAMERA_INVALID != pinSet)
[*] {
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");} //low == reset sensor
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");} //high == power down lens module
[*] }
[*] }
[*] else
[*] {
[*] if (GPIO_CAMERA_INVALID != pinSet)
[*] {
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");} //low == reset sensor
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");} //high == power down lens module
[*] }
[*] if (GPIO_CAMERA_INVALID != pinSet)
[*] {
[*]
[*] }
[*] }
[*] //PDN/STBY pin
[*] if (GPIO_CAMERA_INVALID != pinSet)
[*] {
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");}
[*] //PDN pin
[*] if (mt_set_gpio_mode(pinSet,pinSet)){PK_DBG(" set gpio mode failed!! \n");}
[*] if (mt_set_gpio_dir(pinSet,GPIO_DIR_OUT)){PK_DBG(" set gpio dir failed!! \n");}
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");}
[*] msleep(1);
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");}
[*] msleep(1);
[*] if (mt_set_gpio_out(pinSet,pinSet)){PK_DBG(" set gpio failed!! \n");}
[*] msleep(1);
[*] printk("OV13850 PWN RST\n");
[*] }
[*]}
[*]//...
Lens：
[*]在mediatek\custom\common\kernel\lens\目录下参照ov12830af，增加ov13850af 目录和驱动源码OV13850AF.c。
[*]mediatek\custom\common\kernel\lens\inc\目录下参照ov12830af，增加ov13850af目录和OV13850AF.h头文件
2、HAL
Sensor：
[*]在mediatek\custom\mt6592\hal\imgsensor\目录下增加ov13850_mipi_raw文件夹，将OV13850驱动源码包中的hal下文件，copy到该文件夹下。
[*]修改mediatek\custom\common\hal\imgsensor\src\sensorlist.cpp增加OV13850的SensorList描述项。
[*]MSDK_SENSOR_INIT_FUNCTION_STRUCT SensorList[] =
[*]{
[*] ...
[*] #if defined(OV13850_MIPI_RAW)
[*] RAW_INFO(OV13850_SENSOR_ID, SENSOR_DRVNAME_OV13850_MIPI_RAW,NULL),
[*] #endif
[*] ...
[*]}
Lens：
[*]在mediatek\custom\common\hal\lens\下，增加ov13850af目录，参照ov12830增加lens_para_OV13850AF.cpp
[*]修改mediatek\custom\out\wind92_wet_tdd\hal\lens\src\Lenslist.cpp在LensList数组项里增加OV13850AF描述项。
[*]#if defined(OV13850AF)
[*]extern PFUNC_GETLENSDEFAULT pOV13850AF_getDefaultData;
[*]#endif
MSDK_LENS_INIT_FUNCTION_STRUCT LensList =
[*]{
[*] ...
[*] #if defined(OV13850AF)
[*] {OV13850_SENSOR_ID, OV13850AF_LENS_ID, "OV13850AF", pOV13850AF_getDefaultData},
[*] #endif
[*] ...
[*]}
[*]修改camera_custom_lens.h，增加OV13850_LENS_ID，这里根据序号累加。
[*]#define OV13850AF_LENS_ID 0x0008
3、修改ProductConfig.mk
[*]CUSTOM_HAL_IMGSENSOR= ov13850_mipi_raw ov5648_mipi_raw
[*]CUSTOM_HAL_LENS= ov13850afdummy_lens
[*]CUSTOM_HAL_MAIN_IMGSENSOR= ov13850_mipi_raw
[*]CUSTOM_HAL_MAIN_LENS= ov13850af
[*]CUSTOM_KERNEL_IMGSENSOR= ov13850_mipi_raw ov5648_mipi_raw
[*]CUSTOM_KERNEL_LENS= ov13850af dummy_lens
[*]CUSTOM_KERNEL_MAIN_IMGSENSOR= ov13850_mipi_raw
[*]CUSTOM_KERNEL_MAIN_LENS= ov13850af
4、最后要修改init.rc 更改OV13850AF设备文件的权限，否则在open的时候会失败。
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