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#MTK Camera开发学习系列 #小驰私房菜

这篇文章主要介绍MTK 平台，Camera BringUp会涉及到修改的模块。

MTK不同的平台系列，具体修改代码路径可能会 有差异，不过大体应该是差不多的。

====================================================================

涉及到需要修改的文件：

一、Kernel

kernel-4.19/arch/arm64/configs/tbXXX_64_defconfig

kernel-4.19/drivers/misc/mediatek/imgsensor/inc/kd_imgsensor.h

kernel-4.19/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_pwr_seq.c

kernel-4.19/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_sensor_list.c

kernel-4.19/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_sensor_list.h 

kernel-4.19/drivers/misc/mediatek/imgsensor/src/common/v1_1/XXX_mipi_raw

二、device

device/mediatek/common/kernel-headers/kd_imgsensor.h

device/mediateksample/tbXXX_64/ProjectConfig.mk

三、vendor

/vendor/mediatek/proprietary/custom/mt6XXX/hal/imgsensor_src/sensorlist.cpp

/vendor/mediatek/proprietary/custom/mt6XXX/hal/imgsensor/ver1/XXX_mipi_raw

/vendor/mediatek/proprietary/custom/mt6XXX/hal/imgsensor_metadata/XXX_mipi_raw 

===================================================

详细修改

一、Kernel

kernel-4.*/arch/arm64/configs/tbXXX_64_defconfig

CONFIG_CUSTOM_KERNEL_IMGSENSOR = "XXX_mipi_raw"

kernel-4.*/drivers/misc/mediatek/imgsensor/inc/kd_imgsensor.h

#define XXX_SENSOR_ID                  0xXXX
#define SENSOR_DRVNAME_XXX_MIPI_RAW    "XXX_mipi_raw"

上电时序配置：

kernel-4.*/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_pwr_seq.c

#if defined(XXX_MIPI_RAW)
{SENSOR_DRVNAME_XXX_MIPI_RAW,         {          {RST, Vol_Low, 1},            {PDN, Vol_Low, 1},             {DVDD, Vol_1200, 1},             {DOVDD, Vol_1800, 1},              {AVDD, Vol_2800, 1},              {SensorMCLK, Vol_High, 1},             {RST, Vol_High, 1},              {PDN, Vol_High, 1},}, 
},
#endif 

kernel-4.*/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_sensor_list.c

#if defined(XXX_MIPI_RAW)
{XXX_SENSOR_ID, SENSOR_DRVNAME_XXX_MIPI_RAW, XXX_MIPI_RAW_SensorInit},
#endif

kernel-4.*/drivers/misc/mediatek/imgsensor/src/common/v1_1/imgsensor_sensor_list.h

UINT32 XXX_MIPI_RAW_SensorInit(struct SENSOR_FUNCTION_STRUCT **pfFunc);

驱动文件放置目录：

kernel-4.*4.*/drivers/misc/mediatek/imgsensor/src/common/v1_1/XXX_mipi_raw 

（如果只是修改了驱动文件，可以单独编译bootimage和dtboimage来快速验证）

二、device

device/mediatek/common/kernel-headers/kd_imgsensor.h

#define XXX_SENSOR_ID 0xXXX
#define SENSOR_DRVNAME_XXX_MIPI_RAW "XXX_mipi_raw"

device/mediateksample/tbXXX_64/ProjectConfig.mk

(针对一供、二供这种，就直接在后面添加就好。如下面所示，XXX_mipi_raw表示一供， XXX2_mipi_raw表示二供)

CUSTOM_HAL_MAIN_IMGSENSOR = XXX_mipi_raw  XXX2_mipi_raw CUSTOM_KERNEL_IMGSENSOR = XXX_mipi_raw  XXX2_mipi_raw CUSTOM_KERNEL_MAIN_IMGSENSOR = XXX_mipi_raw  XXX2_mipi_raw 

三、vendor

/vendor/mediatek/proprietary/custom/mtXXX/hal/imgsensor_src/sensorlist.cpp

#if defined(XXX_MIPI_RAW)RAW_INFO_M(XXX_SENSOR_ID, DEFAULT_MODULE_INDEX, DEFAULT_MODULE_ID,
SENSOR_DRVNAME_XXX_MIPI_RAW,CAM_CALGetCalData), #endif

metadata相关信息：

/vendor/mediatek/proprietary/custom/mt6XXX/hal/imgsensor_metadata/XXX_mipi_raw

tuning效果参数：

/vendor/mediatek/proprietary/custom/mt6XXX/hal/imgsensor/ver1/XXX_mipi_raw

=======================================================================

相关日志打印：

vendor/mediatek/proprietary/hardware/mtkcam/drv/src/sensor/common/v1_1/imgsensor_drv.cpp

01-02 17:49:55.340 D/ImgSensorDrv( 6839): [init][init] imgsensor_drv 01-02 17:49:55.340 D/ImgSensorDrv( 6839): [featureControl][featureControl] Skip due to no FeatureId
01-02 17:49:55.340 D/SeninfDrv( 6839): [setMclk][setTg3Phase]pcEn(1), freq(24) 01-02 17:49:55.340 D/ImgSensorDrv( 6839): [searchSensor]searchSensor idx = 3 01-02 17:49:55.415 D/ImgSensorDrv( 6839): [searchSensor]Warning(  124):Search fail
01-02 17:49:55.415 D/SeninfDrv( 6839): [setMclk][setTg3Phase]pcEn(0), freq(24) 01-02 17:49:55.415 D/ImgSensorDrv( 6839): [uninit][uninit] imgsensor_drv 01-02 17:49:55.415 D/ImgSensorDrv( 6839): [init][init] imgsensor_drv 01-02 17:49:55.415 D/ImgSensorDrv( 6839): [featureControl][featureControl] Skip due to no FeatureId
01-02 17:49:55.415 D/SeninfDrv( 6839): [setMclk][setTg3Phase]pcEn(1), freq(24) 01-02 17:49:55.415 D/ImgSensorDrv( 6839): [searchSensor]searchSensor idx = 4 01-02 17:49:55.499 D/ImgSensorDrv( 6839): [searchSensor]Warning(  124):Search fail
01-02 17:49:55.499 D/SeninfDrv( 6839): [setMclk][setTg3Phase]pcEn(0), freq(24) 01-02 17:49:55.499 D/ImgSensorDrv( 6839): [uninit][uninit] imgsensor_drv

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