（1）添加原因
在使用Camera的时候Log中总出现如下相关Error：
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412-25 15:11:09.606250 749 17060 E MtkCam/HalSensor: [sendCommand] SENSOR_CMD_GET_SENSOR_PIXELMODE: mipi pixel rate should not be 0 (sendCommand){#628:vendor/mediatek/proprietary/hardware/mtkcam/drv/src/sensor/mt6761/../common/v1/HalSensor.control.cpp} 12-25 15:11:09.606288 749 17060 E MtkCam/HalSensor: [sendCommand] CMD_SENSOR_GET_PIXEL_RATE: pixel rate should not be 0 (sendCommand){#632:vendor/mediatek/proprietary/hardware/mtkcam/drv/src/sensor/mt6761/../common/v1/HalSensor.control.cpp} 12-25 15:11:09.606310 749 17060 E SeninfDrvImp: [getPixelMode]Err( 3662):pixel rate should not be zero (getPixelMode){#3662:vendor/mediatek/proprietary/hardware/mtkcam/drv/src/sensor/mt6761/seninf_drv.cpp}
由报错可知，是由于Hal Sensor没有配置mipi_pixel_rate属性导致，接下来简单配置一下。
（2）Camera Sensor配置
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105static imgsensor_info_struct imgsensor_info = { .sensor_id = S5K5E2YA_SENSOR_ID, .checksum_value = 0xa48ebf5d, .pre = { .pclk = 179200000, //record different mode's pclk .linelength = 2950, //record different mode's linelength .framelength = 2000, //record different mode's framelength .startx = 0, //record different mode's startx of grabwindow .starty = 0, //record different mode's starty of grabwindow .grabwindow_width = 1280, //record different mode's width of grabwindow .grabwindow_height = 960, //record different mode's height of grabwindow /* following for MIPIDataLowPwr2HighSpeedSettleDelayCount by different scenario */ .mipi_data_lp2hs_settle_dc = 23, /* following for GetDefaultFramerateByScenario() */ .mipi_pixel_rate = 177800000, .max_framerate = 300, }, .cap = { .pclk = 179200000, .linelength = 2950, .framelength = 2025, .startx = 0, .starty = 0, .grabwindow_width = 2560, .grabwindow_height = 1920, .mipi_data_lp2hs_settle_dc = 23, .mipi_pixel_rate = 179600000, .max_framerate = 300, }, .cap1 = { .pclk = 87200000, .linelength = 2950, .framelength = 1970, .startx = 0, .starty = 0, .grabwindow_width = 2560, .grabwindow_height = 1920, .mipi_data_lp2hs_settle_dc = 23, .mipi_pixel_rate = 179600000, .max_framerate = 150, }, .normal_video = { .pclk = 179200000, .linelength = 2950, .framelength = 2000, .startx = 0, .starty = 0, .grabwindow_width = 2560, .grabwindow_height = 1440, .mipi_data_lp2hs_settle_dc = 23, .mipi_pixel_rate = 177400000, .max_framerate = 300, }, .hs_video = { .pclk = 179200000, .linelength = 2950, .framelength = 506, .startx = 0, .starty = 0, .grabwindow_width = 640, .grabwindow_height = 480, .mipi_data_lp2hs_settle_dc = 23, .mipi_pixel_rate = 180900000, .max_framerate = 1200, }, .slim_video = { .pclk = 179200000, .linelength = 2950, .framelength = 2000, .startx = 0, .starty = 0, .grabwindow_width = 1280, .grabwindow_height = 720, .mipi_data_lp2hs_settle_dc = 23, .mipi_pixel_rate = 177800000, .max_framerate = 300, }, .margin = 4, .min_shutter = 1, .max_frame_length = 0xffff, .ae_shut_delay_frame = 0, .ae_sensor_gain_delay_frame = 1, .ae_ispGain_delay_frame = 2, .ihdr_support = 0, //1, support; 0,not support .ihdr_le_firstline = 0, //1,le first ; 0, se first .sensor_mode_num = 5, //support sensor mode num .cap_delay_frame = 3, .pre_delay_frame = 3, .video_delay_frame = 3, .hs_video_delay_frame = 3, .slim_video_delay_frame = 3, .isp_driving_current = ISP_DRIVING_6MA, .sensor_interface_type = SENSOR_INTERFACE_TYPE_MIPI, .mipi_sensor_type = MIPI_OPHY_NCSI2, //0,MIPI_OPHY_NCSI2; 1,MIPI_OPHY_CSI2 .mipi_settle_delay_mode = MIPI_SETTLEDELAY_AUTO,//0,MIPI_SETTLEDELAY_AUTO; 1,MIPI_SETTLEDELAY_MANNUAL .sensor_output_dataformat = SENSOR_OUTPUT_FORMAT_RAW_Gb, .mclk = 24, .mipi_lane_num = SENSOR_MIPI_2_LANE, .i2c_addr_table = {0x20, 0x6c, 0xff}, };
在每个mode中都需要配置mipi_pixel_rate属性，同时在feature_control当中也需要添加如下。
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74static kal_uint32 feature_control(MSDK_SENSOR_FEATURE_ENUM feature_id, UINT8 *feature_para,UINT32 *feature_para_len) { //... //add start case SENSOR_FEATURE_GET_MIPI_PIXEL_RATE: { switch (*feature_data) { case MSDK_SCENARIO_ID_CAMERA_CAPTURE_JPEG: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = imgsensor_info.cap.mipi_pixel_rate; break; case MSDK_SCENARIO_ID_VIDEO_PREVIEW: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = imgsensor_info.normal_video.mipi_pixel_rate; break; case MSDK_SCENARIO_ID_HIGH_SPEED_VIDEO: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = imgsensor_info.hs_video.mipi_pixel_rate; break; case MSDK_SCENARIO_ID_SLIM_VIDEO: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = imgsensor_info.slim_video.mipi_pixel_rate; break; case MSDK_SCENARIO_ID_CAMERA_PREVIEW: default: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = imgsensor_info.pre.mipi_pixel_rate; break; } } break; /*only for Android R (Android 11)/ISP 5.0 delete SENSOR_FEATURE_GET_PIXEL_RATE in Android Q (Android 10) & earlier versions*/ case SENSOR_FEATURE_GET_PIXEL_RATE: switch (*feature_data) { case MSDK_SCENARIO_ID_CAMERA_CAPTURE_JPEG: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = (imgsensor_info.cap.pclk / (imgsensor_info.cap.linelength - 80))* imgsensor_info.cap.grabwindow_width; break; case MSDK_SCENARIO_ID_VIDEO_PREVIEW: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = (imgsensor_info.normal_video.pclk / (imgsensor_info.normal_video.linelength - 80))* imgsensor_info.normal_video.grabwindow_width; break; case MSDK_SCENARIO_ID_HIGH_SPEED_VIDEO: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = (imgsensor_info.hs_video.pclk / (imgsensor_info.hs_video.linelength - 80))* imgsensor_info.hs_video.grabwindow_width; break; case MSDK_SCENARIO_ID_SLIM_VIDEO: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = (imgsensor_info.slim_video.pclk / (imgsensor_info.slim_video.linelength - 80))* imgsensor_info.slim_video.grabwindow_width; break; case MSDK_SCENARIO_ID_CAMERA_PREVIEW: default: *(MUINT32 *)(uintptr_t)(*(feature_data + 1)) = (imgsensor_info.pre.pclk / (imgsensor_info.pre.linelength - 80))* imgsensor_info.pre.grabwindow_width; break; } break; //add end //... }
（3）如何计算mipi_pixel_rate值
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15计算sensor的mipi_pixel_rate值： adb shell sentest arg1 arg2 //arg1: 指定sensor main sensor (arg1 = 1) sub sensor (arg1 = 2) //arg2：指定sensor mode preview (arg2 = 0) capture (arg2 = 1) video (arg2 = 2) hs video (arg2 = 3) slim video (arg2 = 4)
（4）sensor的fps计算值
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2fps = pclk/linelength/framelength
（5）FOV值计算
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2CTS FOV：FOCAL_LENGTH = WIDTH_PIXEL_SIZE / (2 * tan FOV / 2)
（6）copy tuning和metadata文件如何快速改名
比如将hi552_mipi_raw的tuning效果和metadata文件copy一份给到s5k5e2ya_mipi_raw来使用，可按照如下操作步骤实施。
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11//（1） 将当前目录及子目录下，文件名含有"xxx1"的字符全部替换为"xxx2" rename -v 's/xxx1/xxx2/' `find ./ -name "*xxx1*"` //eg tct_title.xml替换后为：wt_title.xml //（2）将当前目录及子目录下，文件内容含有"xxx1"的字符全部替换为"xxx2",且排除搜索.git目录 sed -i "s/xxx1/xxx2/g" `grep "xxx1" -rl ./ -R --exclude-dir=.git` //（3）不需要排除.git目录 sed -i "s/xxx1/xxx2/g" `grep "xxx1" -rl ./`
- 先copy一份hi552_mipi_raw的文件夹出来，并将其重命名为s5k5e2ya_mipi_raw；
- 进入该文件夹后，执行
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4rename -v 's/hi552/s5k5e2ya/' `find ./ -name "*hi552*"` sed -i "s/hi552/s5k5e2ya/g" `grep "hi552" -rl ./` sed -i "s/HI552/S5K5E2YA/g" `grep "HI552" -rl ./`
如上执行完成后，文件即可完全改名，可尝试全编译。
最后
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