MTK camera bring up

MTK camera bring up

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一、DWS配置：

1.根据硬件连接，对照HW interface部分，配置cam各pin：

(1) Serial(DATA/SERIAL data CLOCK)
(2) Mipi(MIPI data和MIPI clock)
(3) MCLK、PCLK
(4) PDN、RST、LDO_ENABLE pin

2.example：

二、config配置文件：

1.Configure camera sensor hal driver in ProjectConfig.mk

file path：alps/device/mediatek/$project/ProjectConfig.mk

example：

CUSTOM_HAL_IMGSENSOR = gc0310_yuv imx179_mipi_raw ov5670_mipi_raw hi556_mipi_raw hi846_mipi_raw
CUSTOM_HAL_MAIN_IMGSENSOR = ov5670_mipi_raw hi846_mipi_raw
CUSTOM_HAL_SUB_IMGSENSOR = gc0310_yuv hi556_mipi_raw
CUSTOM_KERNEL_IMGSENSOR = hi556_mipi_raw hi846_mipi_raw
CUSTOM_KERNEL_MAIN_IMGSENSOR = ov5670_mipi_raw hi846_mipi_raw
CUSTOM_KERNEL_SUB_IMGSENSOR = hi556_mipi_raw

2.Add camera sensor kernel driver project config (_defconfig)

file path： alps//arch/arm/configs/_defconfig

example：
CONFIG_CUSTOM_KERNEL_IMGSENSOR=”hi556_mipi_raw hi846_mipi_raw”

key note：此处的定义一定要和ProjectConfig.mk文件中的定义一样。

三、Kernel层添加驱动文件、上电时序与头文件相关定义：

1.添加驱动文件：

（1）Add camera sensor kernel driver code to the corresponding path（kernel层路径）

file path：
【By project】：alps/kernel-3.18/drivers/misc/mediatek/mach/mt6580//imgsensor/
【By platform】：alps/kernel-3.18/drivers/misc/mediatek/imgsensor/src//

（2）添加Makefile。

2.添加上下电时序：

file path：alps/kernel-3.18/drivers/misc/mediatek/imgsensor/src/mt6580/camera_hw/kd_camera_hw.c

example：
在int kdCISModulePowerOn(CAMERA_DUAL_CAMERA_SENSOR_ENUM SensorIdx, char *currSensorName, BOOL On, char *mode_name) function中添加：

if (currSensorName && (0 == strcmp(SENSOR_DRVNAME_HI556_MIPI_RAW, currSensorName))) {
    //mtkcam_gpio_set(pinSetIdx, CAMLDO, 1);
    /* First Power Pin low and Reset Pin Low */

    if (GPIO_CAMERA_INVALID != pinSet[pinSetIdx][IDX_PS_CMPDN])
        mtkcam_gpio_set(pinSetIdx, CAMPDN, pinSet[pinSetIdx][IDX_PS_CMPDN + IDX_PS_OFF]);

    if (GPIO_CAMERA_INVALID != pinSet[pinSetIdx][IDX_PS_CMRST])
        mtkcam_gpio_set(pinSetIdx, CAMRST, pinSet[pinSetIdx][IDX_PS_CMRST + IDX_PS_OFF]);

    mdelay(10);

    /* VCAM_IO */
    if (TRUE != _hwPowerOn(VCAMIO, VOL_1800)) {
        PK_DBG("[CAMERA SENSOR] Fail to enable IO power (VCAM_IO),power id = %d\n", VCAMIO);
        goto _kdCISModulePowerOn_exit_;
    }

    if (GPIO_CAMERA_INVALID != pinSet[pinSetIdx][IDX_PS_CMRST]) {
        mtkcam_gpio_set(pinSetIdx, CAMRST, pinSet[pinSetIdx][IDX_PS_CMRST + IDX_PS_ON]);
    }
    mdelay(1); //t0

    /* VCAM_A */
    if (TRUE != _hwPowerOn(VCAMA, VOL_2800)) {
        PK_DBG("[CAMERA SENSOR] Fail to enable analog power (VCAM_A),power id = %d\n", VCAMA);
        goto _kdCISModulePowerOn_exit_;
    }

    udelay(1); //t1

    /* VCAM_D */
    if (TRUE != _hwPowerOn(VCAMD, VOL_1200)) {
        PK_DBG("[CAMERA SENSOR] Fail to enable digital power (VCAM_D),power id = %d\n", VCAMD);
        goto _kdCISModulePowerOn_exit_;
    }

    udelay(1); //t2-1

    /* MCLK */
    ISP_MCLK2_EN(1);
    mdelay(1); //t2-2

    /* enable active sensor */
    if (GPIO_CAMERA_INVALID != pinSet[pinSetIdx][IDX_PS_CMPDN]) {
        mtkcam_gpio_set(pinSetIdx, CAMPDN, pinSet[pinSetIdx][IDX_PS_CMPDN + IDX_PS_ON]);
    }
    mdelay(100); //t4
}

3.添加头文件相关定义：

(1)kd_imgsensor.h

file path：alps/kernel-3.18/drivers/misc/mediatek/imgsensor/inc/kd_imgsensor.h

example：

#define HI556_SENSOR_ID                         0x0556
......................................................
#define SENSOR_DRVNAME_HI556_MIPI_RAW           "hi556mipiraw" 

(2)kd_sensorlist.h

file path：alps/kernel-3.18/drivers/misc/mediatek/imgsensor/src/mt6580/kd_sensorlist.h

example：

UINT32 HI556_MIPI_RAW_SensorInit(PSENSOR_FUNCTION_STRUCT *pfFunc);

.................................................................

#if defined(HI556_MIPI_RAW)
    {HI556_SENSOR_ID, SENSOR_DRVNAME_HI556_MIPI_RAW,HI556_MIPI_RAW_SensorInit},
#endif

四、Hal层添加效果驱动文件、sensorlist文件中的定义与相关头文件定义：

1.添加效果驱动文件：

file path：
【By project】：alps/vendor/mediatek/proprietary/custom//hal/imgsensor/
【By platform】：alps/vendor/mediatek/proprietary/custom//hal/imgsensor/

2.添加sensorlist文件中的定义：

file path：alps/vendor/mediatek/proprietary/custom/mt6580/hal/imgsensor_src/sensorlist.cpp

example：

#if defined(HI556_MIPI_RAW)
    RAW_INFO(HI556_SENSOR_ID, SENSOR_DRVNAME_HI556_MIPI_RAW, NULL), 
#endif

3.添加头文件相关定义：

file path：alps/device/mediatek/common/kernel-headers/kd_imgsensor.h

example：

#define HI556_SENSOR_ID                         0x0556
......................................................
#define SENSOR_DRVNAME_HI556_MIPI_RAW           "hi556mipiraw"