MTK 移植camera说明
1、 裁剪模块
修改文件：config/tf902/ProjectConfig.mk
Eg\
config/tf902/ProjectConfig.mk
````````````````````````````````````````````
CUSTOM_HAL_EEPROM = dummy_eeprom
CUSTOM_HAL_FLASHLIGHT = constant_flashlight
CUSTOM_HAL_FMRADIO = mt6628
-CUSTOM_HAL_IMGSENSOR = ov8825_mipi_raw s5k8aayx_mipi_yuv
+CUSTOM_HAL_IMGSENSOR = gc2235mipi_raw gc0313mipi_yuv#ov8825_mipi_raw s5k8aayx_mipi_yuv #添加摄像头模块，定义hal层
CUSTOM_HAL_LENS = ov8825af dummy_lens
CUSTOM_HAL_MAIN2_IMGSENSOR =
CUSTOM_HAL_MAIN_BACKUP_IMGSENSOR =
CUSTOM_HAL_MAIN_BACKUP_LENS = dummy_lens
-CUSTOM_HAL_MAIN_IMGSENSOR = ov8825_mipi_raw
+CUSTOM_HAL_MAIN_IMGSENSOR = gc2235mipi_raw #ov8825_mipi_raw #主摄像头在hal层的修改
CUSTOM_HAL_MAIN_LENS = ov8825af
CUSTOM_HAL_MSENSORLIB = mmc328x akm8975 ami304 yamaha530 mag3110 akmd8963 bmm050
CUSTOM_HAL_SENSORS = sensor
CUSTOM_HAL_SUB_BACKUP_IMGSENSOR =
CUSTOM_HAL_SUB_BACKUP_LENS = dummy_lens
-CUSTOM_HAL_SUB_IMGSENSOR = s5k8aayx_mipi_yuv
+CUSTOM_HAL_SUB_IMGSENSOR = gc0313mipi_yuv #s5k8aayx_mipi_yuv #副摄像头在hal层的定义
CUSTOM_HAL_SUB_LENS = dummy_lens
CUSTOM_KERNEL_ACCELEROMETER = bma050
CUSTOM_KERNEL_ALSPS = cm36283
@@ -79,7 +79,7 @@ CUSTOM_KERNEL_FLASHLIGHT = constant_flashlight
CUSTOM_KERNEL_FM = mt6628
CUSTOM_KERNEL_HDMI =
CUSTOM_KERNEL_HEADSET = accdet
-CUSTOM_KERNEL_IMGSENSOR = ov8825_mipi_raw s5k8aayx_mipi_yuv
+CUSTOM_KERNEL_IMGSENSOR = gc2235mipi_raw gc0313mipi_yuv#ov8825_mipi_raw s5k8aayx_mipi_yuv #添加摄像头在kernal 模块
CUSTOM_KERNEL_KPD = kpd
CUSTOM_KERNEL_LCM = bi097xn02_xga_dpi
CUSTOM_KERNEL_LEDS = mt65xx
+CUSTOM_KERNEL_MAIN_IMGSENSOR = gc2235mipi_raw #ov8825_mipi_raw #在底层定义主摄像头
CUSTOM_KERNEL_MAIN_LENS = ov8825af
CUSTOM_KERNEL_RTC = rtc
CUSTOM_KERNEL_SOUND = amp_6320pmic_spk
CUSTOM_KERNEL_SSW = ssw_generic
CUSTOM_KERNEL_SUB_BACKUP_IMGSENSOR =
CUSTOM_KERNEL_SUB_BACKUP_LENS = dummy_lens
-CUSTOM_KERNEL_SUB_IMGSENSOR = s5k8aayx_mipi_yuv
+CUSTOM_KERNEL_SUB_IMGSENSOR = gc0313mipi_yuv#s5k8aayx_mipi_yuv #在底层定义副摄像头
CUSTOM_KERNEL_SUB_LENS = dummy_lens
CUSTOM_KERNEL_TOUCHPANEL = GT82X #cy8ctma300 GT818B-fpga
CUSTOM_KERNEL_USB = mt6577
上面的修改是在平台没有默认AF（自动对焦）的功能（mtk6517和mtk6577\mtk6572的平台没有默认AF功能），mtk6589的平台默认就支持AF功能。如果移植的摄像头没有AF功能就必须将默认的AF功能屏蔽掉（否则在DMA操作数据的时候很多的算法受影响，将在切换的时候很卡）！
在没有AF功能，就将全部设置成dummy_lens。ov8825af 指的是自动对焦功能。
config/tf902/ProjectConfig.mk
·························
CUSTOM_HAL_EEPROM = dummy_eeprom
CUSTOM_HAL_FLASHLIGHT = constant_flashlight
CUSTOM_HAL_FMRADIO = mt6628
CUSTOM_HAL_IMGSENSOR = gc2235mipi_raw gc0313mipi_yuv#ov8825_mipi_raw s5k8aayx_mipi_yuv
-CUSTOM_HAL_LENS = ov8825af dummy_lens
+CUSTOM_HAL_LENS = dummy_lens #ov8825af #hal层的副摄像头自动对焦设置
CUSTOM_HAL_MAIN2_IMGSENSOR =
CUSTOM_HAL_MAIN_BACKUP_IMGSENSOR =
CUSTOM_HAL_MAIN_BACKUP_LENS = dummy_lens
CUSTOM_HAL_MAIN_IMGSENSOR = gc2235mipi_raw #ov8825_mipi_raw
-CUSTOM_HAL_MAIN_LENS = ov8825af
+CUSTOM_HAL_MAIN_LENS =dummy_lens # ov8825af #hal层主摄像头的自动对焦功能
CUSTOM_HAL_MSENSORLIB = mmc328x akm8975 ami304 yamaha530 mag3110 akmd8963 bmm050
CUSTOM_HAL_SENSORS = sensor
CUSTOM_HAL_SUB_BACKUP_IMGSENSOR =
··························
CUSTOM_KERNEL_IMGSENSOR = gc2235mipi_raw gc0313mipi_yuv#ov8825_mipi_raw s5k8aayx
CUSTOM_KERNEL_KPD = kpd
CUSTOM_KERNEL_LCM = bi097xn02_xga_dpi
CUSTOM_KERNEL_LEDS = mt65xx
-CUSTOM_KERNEL_LENS = ov8825af dummy_lens
+CUSTOM_KERNEL_LENS = dummy_lens #ov8825af # KERNEL中副摄像头的自动对焦功能
CUSTOM_KERNEL_MAGNETOMETER =
CUSTOM_KERNEL_MAIN2_BACKUP_IMGSENSOR =
CUSTOM_KERNEL_MAIN2_IMGSENSOR =
CUSTOM_KERNEL_MAIN_BACKUP_IMGSENSOR =
CUSTOM_KERNEL_MAIN_BACKUP_LENS = dummy_lens
CUSTOM_KERNEL_MAIN_IMGSENSOR = gc2235mipi_raw #ov8825_mipi_raw
-CUSTOM_KERNEL_MAIN_LENS = ov8825af
+CUSTOM_KERNEL_MAIN_LENS = dummy_lens #ov8825af #KERNEL中主摄像头的自动对焦功能
CUSTOM_KERNEL_RTC = rtc
2、 将custom/common/hal/imgsensor/中添加相应模块的hal层代码
在custom/common/kernel/imgsensor/中添加相应模块的Kernal层的代码
3、 SensorList[]的数据通过宏定义的判断，查看目前可能的摄像头的数量。同时框架层也是通过这个变量来获取摄像头的数量。
custom/common/hal/imgsensor/src/sensorlist.cpp
··········································
MSDK_SENSOR_INIT_FUNCTION_STRUCT SensorList[] =
RAW_INFO(IMX073_SENSOR_ID, SENSOR_DRVNAME_IMX073_MIPI_RAW,CAM_CALGetCalData),
#endif
+#if defined(GC2235MIPI_RAW)
+ RAW_INFO(GC2235MIPI_SENSOR_ID, SENSOR_DRVNAME_GC2235MIPI_RAW, NULL),
+#endif
+
+#if defined(GC0313MIPI_YUV)
+ RAW_INFO(GC0313MIPI_SENSOR_ID, SENSOR_DRVNAME_GC0313MIPI_YUV, NULL),
+#endif
+
#if defined(OV8825_MIPI_RAW)
RAW_INFO(OV8825_SENSOR_ID, SENSOR_DRVNAME_OV8825_MIPI_RAW,CAM_CALGetCalData),
#endif
4、 custom/common/kernel/imgsensor/inc/kd_imgsensor.h 定义设备ID，定义一个摄像头的名字，这个名字对移植的成功与否问题不大
custom/common/kernel/imgsensor/inc/kd_imgsensor.h
·······································
#define OV8830_SENSOR_ID 0x8830
#define OV9726_SENSOR_ID 0x9726
#define A5141MIPI_SENSOR_ID 0x4800
-
+#define GC2235MIPI_SENSOR_ID 0X2235
+#define GC0313MIPI_SENSOR_ID 0XD0
/* CAMERA DRIVER NAME */
#define CAMERA_HW_DEVNAME "kd_camera_hw"
·······································
#define SENSOR_DRVNAME_HI542_RAW "hi542raw"
#define SENSOR_DRVNAME_HI542MIPI_RAW "hi542mipiraw"
+#define SENSOR_DRVNAME_GC2235MIPI_RAW "gc2235mipiraw"
+#define SENSOR_DRVNAME_GC0313MIPI_YUV "gc0313mipiyuv"
+
#define SENSOR_DRVNAME_OV5647MIPI_RAW "ov5647mipiraw"
#define SENSOR_DRVNAME_HM3451_RAW "hm3451raw"
5、 为系统提供驱动调用的接口
其中必须注意上下的顺序必须一致！
custom/common/kernel/imgsensor/src/kd_sensorlist.h
@@ -53,7 +53,8 @@ UINT32 OV12830_MIPI_RAW_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
UINT32 S5K3H7Y_MIPI_RAW_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
UINT32 S5K8AAYX_MIPI_YUV_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
UINT32 OV9740_MIPI_YUV_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
-
//一定要注意下面定义时 要和硬件的数据格式匹配
+UINT32 GC0313MIPI_YUV_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
+UINT32 GC2235MIPISensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
//! Add Sensor Init function here
//! Note:
//! 1. Add by the resolution from ""large to small"", due to large sensor
@@ -62,6 +63,13 @@ UINT32 OV9740_MIPI_YUV_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);
//! 2. This file should be the same as mediatek\custom\common\hal\imgsensor\src\sensorlist.cpp
ACDK_KD_SENSOR_INIT_FUNCTION_STRUCT kdSensorList[MAX_NUM_OF_SUPPORT_SENSOR+1] =
{
//和上面定义顺序一致
+#if defined(GC2235MIPI_RAW)
+ {GC2235MIPI_SENSOR_ID, SENSOR_DRVNAME_GC2235MIPI_RAW, GC2235MIPISensorInit},
+#endif
+
+#if defined(GC0313MIPI_YUV)
+ {GC0313MIPI_SENSOR_ID, SENSOR_DRVNAME_GC0313MIPI_YUV, GC0313MIPI_YUV_SensorInit},
+#endif
#if defined(OV8830_RAW)
{OV8830_SENSOR_ID, SENSOR_DRVNAME_OV8830_RAW, OV8830SensorInit},
#endif
6、 修改电源
参考datasheet上的时序。注意顺序，注意电源的大小，注意要关闭电源，注意时序。
7、 配置GPIO口
数据口和时钟口通常采用默认；
电源引脚在代码里面进行设置，不需要直接配置。
8、
9、