Android源码之单双摄像头修改

客制化需求中经常有要改成单摄像或者又要改回双摄像的。这篇博客总结一下关于单双摄像头的修改。关于单双摄像头需要修改下面三个地方：
<一>

device\sprd\scx35\sp7731g_1h10\BoardConfig.mk 源码如下

## Copyright (C) 2011 The Android Open-Source Project## Licensed under the Apache License, Version 2.0 (the "License");# you may not use this file except in compliance with the License.# You may obtain a copy of the License at##      http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.## secure bootBOARD_SECURE_BOOT_ENABLE := falseSECURE_BOOT_SIGNAL_KEY := falseinclude $(PLATCOMM)/BoardConfigCommon.mkinclude $(PLATCOMM)/emmc/BoardConfigEmmc.mk# board configsTARGET_BOOTLOADER_BOARD_NAME := sp7731gea_hdr# select camera 2M,3M,5M,8MCAMERA_SUPPORT_SIZE := 5MFRONT_CAMERA_SUPPORT_SIZE := 0P3MTARGET_BOARD_NO_FRONT_SENSOR := falseTARGET_BOARD_CAMERA_FLASH_CTRL := falseCAMERA_PHYSICAL_SIZE := 1_3inchFRONT_CAMERA_PHYSICAL_SIZE := 1_5inch# camera sensor typeCAMERA_SENSOR_TYPE_BACK := "ov8825_mipi_raw"CAMERA_SENSOR_TYPE_FRONT := "GC2155_MIPI_yuv"AT_CAMERA_SENSOR_TYPE_BACK := "autotest_ov8825_mipi_raw"AT_CAMERA_SENSOR_TYPE_FRONT := "autotest_GC2155_MIPI_yuv"#face detectTARGET_BOARD_CAMERA_FACE_DETECT := trueTARGET_BOARD_CAMERA_FD_LIB := omron#hdr captureTARGET_BOARD_CAMERA_HDR_CAPTURE := true#full screen displayTARGET_BOARD_CAMERA_FULL_SCREEN_DISPLAY := true#uv denoiseTARGET_BOARD_CAMERA_UV_DENOISE := true#capture memTARGET_BOARD_LOW_CAPTURE_MEM := true#snesor interfaceTARGET_BOARD_BACK_CAMERA_INTERFACE := mipiTARGET_BOARD_FRONT_CAMERA_INTERFACE := mipi#select camera zsl cap modeTARGET_BOARD_CAMERA_CAPTURE_MODE := false#sprd zsl featureTARGET_BOARD_CAMERA_SPRD_PRIVATE_ZSL := true#rotation captureTARGET_BOARD_CAMERA_ROTATION_CAPTURE := trueifeq ($(strip $(ZEDIEL_PROJECT_CONFIG)), $(filter $(ZEDIEL_PROJECT_CONFIG), ZEDIEL_SI706AKA ZEDIEL_SI706ASB))TARGET_BOARD_BACK_CAMERA_ROTATION := trueTARGET_BOARD_FRONT_CAMERA_ROTATION := trueendif#rm zoom from 1080p recordingTARGET_BOARD_DISABLE_1080P_RECORDING_ZOOM := true#select continuous auto focusTARGET_BOARD_CAMERA_CAF := true#select no camera flash#TARGET_BOARD_CAMERA_NO_FLASH_DEV := true#image angle in different project#TARGET_BOARD_CAMERA_ADAPTER_IMAGE := 180#pre_allocate capture memoryTARGET_BOARD_CAMERA_PRE_ALLOC_CAPTURE_MEM := false#sc8830g isp ver 0;sc9630 isp ver 1TARGET_BOARD_CAMERA_ISP_SOFTWARE_VERSION := 0#select mipi d-phy mode(none, phya, phyb, phyab)TARGET_BOARD_FRONT_CAMERA_MIPI := phybTARGET_BOARD_BACK_CAMERA_MIPI := phya#select ccir pclk src(source0, source1)TARGET_BOARD_FRONT_CAMERA_CCIR_PCLK := source0TARGET_BOARD_BACK_CAMERA_CCIR_PCLK := source0# select WCNBOARD_HAVE_BLUETOOTH := trueifeq ($(strip $(USE_SPRD_WCN)),true)BOARD_SPRD_WCNBT_SR2351 := trueBOARD_HAVE_FM_TROUT := trueBOARD_USE_SPRD_FMAPP := trueendif#2351 GPSBOARD_USE_SPRD_4IN1_GPS := true# WIFI configsBOARD_WPA_SUPPLICANT_DRIVER := NL80211WPA_SUPPLICANT_VERSION      := VER_2_1_DEVELBOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_sprdwlBOARD_HOSTAPD_DRIVER        := NL80211BOARD_HOSTAPD_PRIVATE_LIB   := lib_driver_cmd_sprdwlBOARD_WLAN_DEVICE           := sc2351WIFI_DRIVER_FW_PATH_PARAM   := "/data/misc/wifi/fwpath"WIFI_DRIVER_FW_PATH_STA     := "sta_mode"WIFI_DRIVER_FW_PATH_P2P     := "p2p_mode"WIFI_DRIVER_FW_PATH_AP      := "ap_mode"WIFI_DRIVER_MODULE_PATH     := "/system/lib/modules/sprdwl.ko"WIFI_DRIVER_MODULE_NAME     := "sprdwl"# select sensor#USE_INVENSENSE_LIB := trueUSE_SPRD_SENSOR_LIB := true# BOARD_HAVE_ACC := mxc622x# BOARD_HAVE_ACC := mc3xxx# BOARD_HAVE_ACC := stk8baxxBOARD_HAVE_ACC := compatibleBOARD_ACC_INSTALL := 6BOARD_HAVE_ORI := NULLBOARD_ORI_INSTALL := NULL# BOARD_HAVE_PLS := stk3x1xBOARD_HAVE_PLS := gsl1680#BOARD_HAVE_PLS := NULL# ext4 partition layoutTARGET_USERIMAGES_USE_EXT4 := trueBOARD_CACHEIMAGE_PARTITION_SIZE := 150000000BOARD_PRODNVIMAGE_PARTITION_SIZE := 5242880BOARD_SYSINFOIMAGE_PARTITION_SIZE := 5242880BOARD_PERSISTIMAGE_PARTITION_SIZE := 2097152BOARD_FLASH_BLOCK_SIZE := 4096BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4BOARD_PRODNVIMAGE_FILE_SYSTEM_TYPE := ext4BOARD_SYSINFOIMAGE_FILE_SYSTEM_TYPE := ext4TARGET_SYSTEMIMAGES_SPARSE_EXT_DISABLED := trueTARGET_USERIMAGES_SPARSE_EXT_DISABLED := falseTARGET_CACHEIMAGES_SPARSE_EXT_DISABLED := falseTARGET_PRODNVIMAGES_SPARSE_EXT_DISABLED := trueTARGET_SYSINFOIMAGES_SPARSE_EXT_DISABLED := truePRODUCT_COPY_FILES += $(BOARDDIR)/SC7730_UMS.xml:$(PRODUCT_OUT)/SC7730_UMS.xmlTARGET_GPU_USE_TILE_ALIGN := trueDEVICE_GSP_NOT_SCALING_UP_TWICE := true#TARGET_USES_LOGD := false# powerhint HAL config# sprdemand, interhotplug, interpowerdownBOARD_POWERHINT_HAL := sprdemand

在这个文件中第一点：

TARGET_BOARD_NO_FRONT_SENSOR := false如果为false代表机器有双摄像头，如果为true代表只有后置摄像头没有前置摄像头。

#select mipi d-phy mode(none, phya, phyb, phyab)TARGET_BOARD_FRONT_CAMERA_MIPI := phybTARGET_BOARD_BACK_CAMERA_MIPI := phya这里面对应的是前后摄像头处理的寄存器。双摄像头情况下前摄FRONT对应得是phyb,后摄BACK对应的是phya，如果要改成单摄像头，单后摄的话不用做修改，单前摄的话把前摄的处理屏蔽，后摄改成phyb。这里面要解释下硬件上处理单摄像头都是用后摄摄像头的配置。

<三>

kernel\arch\arm\boot\dts\sprd-scx35_sp7731gea_hdr.dts文件中 gpio角如下 sprd_sensor {         compatible  = "sprd,sprd_sensor";         reg = <0x60c00000 0x1000>;         gpios = <&d_gpio_gpio 186 0    /* 0: main reset*/                 &d_gpio_gpio 188 0    /* 1: main powerdown*/前摄                 &d_gpio_gpio 186 0    /* 2:sub reset*/                 &d_gpio_gpio 187 0    /* 3:sub powerdown*/后摄                 &d_gpio_gpio 0 0     /* 4:main core voltage*/

如果是双摄像头的话就是上面这种配置，如果是单摄的话将后摄和前摄的gpio角对换，

sprd_sensor {         compatible  = "sprd,sprd_sensor";         reg = <0x60c00000 0x1000>;         gpios = <&d_gpio_gpio 186 0    /* 0: main reset*/                 &d_gpio_gpio 187 0    /* 1: main powerdown*/前摄                 &d_gpio_gpio 186 0    /* 2:sub reset*/                 &d_gpio_gpio 188 0    /* 3:sub powerdown*/后摄                 &d_gpio_gpio 0 0     /* 4:main core voltage*/

以上是单双摄像头需要修改的地方。另外需要在

vendor\sprd\modules\libcamera\oem\src\sensor_cfg.c

const SENSOR_MATCH_T main_sensor_infor_tab[]={#ifdef CONFIG_BACK_CAMERA_MIPI#if defined(CONFIG_CAMERA_ISP_VERSION_V3) || defined(CONFIG_CAMERA_ISP_VERSION_V4)//    {"s5k3l2xx_mipi", &g_s5k3l2xx_mipi_raw_info},    {"s5k4h5yc_mipi", &g_s5k4h5yc_mipi_raw_info},    {"s5k4h5yc_mipi", &g_s5k4h5yc_jsl_mipi_raw_info},    {"ov8825_mipi_raw", &g_ov8825_mipi_raw_info},    {"hi544_mipi_raw", &g_hi544_mipi_raw_info},    {"ov5640_mipi_yuv", &g_ov5640_mipi_yuv_info},    {"ov5640_mipi_raw", &g_ov5640_mipi_raw_info},    {"ov5670_mipi_raw", &g_ov5670_mipi_raw_info},    {"ov13850_mipi_raw", &g_ov13850_mipi_raw_info},    {"ov8858_mipi_raw", &g_ov8858_mipi_raw_info},#else        #if 1//  {"sp2508_mipi",&g_sp2508_mipi_raw_info},  //      {"gc2755_mipi",&g_gc2755_mipi_raw_info},    //    {"sp2529_mipi",&g_SP2529_MIPI_yuv_info},//      {"gc5004_mipi",&g_gc5004_mipi_raw_info},    //  {"gc2145_mipi",&g_GC2145_MIPI_yuv_info},        {"gc2145_back_mipi",&g_GC2145_BACK_MIPI_yuv_info},        {"gc2355_mipi",&g_gc2355_mipi_raw_info},        {"sp2509_back_mipi",&g_sp2509_back_mipi_raw_info},        {"gc2365_back_mipi", &g_gc2365_back_mipi_raw_info},        {"gc0310_mipi",&g_GC0310_BACK_MIPI_yuv_info},        {"gc030a_back_mipi", &g_gc030a_back_mipi_raw_info},        {"sp0a09_back_mipi",&g_sp0a09_back_mipi_raw_info},    {"gc5024_mipi",&g_gc5024_mipi_raw_info},    {"gc5005_mipi",&g_gc5005_mipi_raw_info},    {"ov5675_mipi_raw",&g_ov5675_mipi_raw_info},        //{"gc5024_mipi",&g_gc5024_mipi_raw_info},          //  {"sp5408_mipi",&g_sp5408_raw_info},    //  {"sp5409_mipi",&g_sp5409_mipi_raw_info},    //  {"ov5645_mipi",&g_ov5645_mipi_yuv_info},    //    {"bf3a20_mipi",&g_BF3A20_mipi_yuv_info},    #else    {"ov8825_mipi_raw", &g_ov8825_mipi_raw_info},    {"hi544_mipi_raw", &g_hi544_mipi_raw_info},    {"ov5640_mipi_yuv", &g_ov5640_mipi_yuv_info},    {"ov5648_mipi_raw", &g_ov5648_mipi_raw_info},    {"ov2680_mipi_raw", &g_ov2680_mipi_raw_info},    {"sr352_mipi_yuv", &g_sr352_mipi_yuv_info},    {"imx219_mipi_raw", &g_imx219_mipi_raw_info},    {"s5k4ec_mipi_yuv", &g_s5k4ec_mipi_yuv_info},    //{"ov8830_mipi_raw", &g_ov8830_mipi_raw_info},    {"imx179_mipi_raw", &g_imx179_mipi_raw_info},    {"ov8865_mipi_raw", &g_ov8865_mipi_raw_info},    {"ov13850_mipi_raw", &g_ov13850_mipi_raw_info},    //{"s5k5ccgx_yuv_info", &g_s5k5ccgx_yuv_info_mipi},    //{"s5k4e1ga_mipi_raw", &g_s5k4e1ga_mipi_raw_info},    //{"hi351_mipi_yuv", &g_hi351_mipi_yuv_info},    //{"ov5640_mipi_raw", &g_ov5640_mipi_raw_info},    //{"ov5647_mipi_raw_info", &g_ov5647_mipi_raw_info},    {"ov5670_mipi_raw", &g_ov5670_mipi_raw_info},        //{"SP2529_MIPI_yuv", &g_SP2529_MIPI_yuv_info},       #endif#endif#endif#ifdef CONFIG_BACK_CAMERA_CCIR    {"ov5640_yuv", &g_ov5640_yuv_info},    {"hi253_yuv", &g_hi253_yuv_info},    {"ov5640_yuv", &g_ov5640_yuv_info},    {"hi253_yuv_info", &g_hi253_yuv_info},    {"GT2005_yuv", &g_GT2005_yuv_info},    {"s5k4ec_yuv", &g_s5k4ec_yuv_info},    {"sr352_yuv", &g_sr352_yuv_info},    //{"ov7675_yuv", &g_OV7675_yuv_info},    //{"ov2655_yuv", &g_OV2655_yuv_info},    //{"ov7675_yuv", &g_OV7675_yuv_info},    //{"ov2640_yuv", &g_OV2640_yuv_info},    {"HM2058_yuv", &g_HM2058_yuv_info},#endif    {"", NULL},};const SENSOR_MATCH_T sub_sensor_infor_tab[]={#ifdef CONFIG_FRONT_CAMERA_CCIR    {"GC2155_yuv", &g_GC2155_yuv_info},    {"hi253_yuv", &g_hi253_yuv_info},    {"GC0308_yuv", &g_GC0308_yuv_info},    {"GC2035_yuv", &g_GC2035_yuv_info},    {"HI702_yuv", &g_HI702_yuv_info},    {"ov7675_yuv", &g_OV7675_yuv_info},    //{"GC0309_yuv", &g_GC0309_yuv_info},    //{"OV7690_yuv", g_OV7690_yuv_info},#endif#ifdef CONFIG_FRONT_CAMERA_MIPI#if (defined(CONFIG_CAMERA_ISP_VERSION_V3) || defined(CONFIG_CAMERA_ISP_VERSION_V4))    {"s5k5e3yx_mipi", &g_s5k5e3yx_mipi_raw_info},    {"ov5648_mipi_raw", &g_ov5648_mipi_raw_info},    {"ov2680_mipi_raw", &g_ov2680_mipi_raw_info},#endif          {"sp2509_mipi",&g_sp2509_mipi_raw_info},        {"sp0a08_mipi",&g_sp0a08_mipi_raw_info},        {"sp0a09_mipi",&g_sp0a09_mipi_raw_info},    //{"hi255_yuv", &g_hi255_yuv_info},//  {"GC2155_MIPI_yuv", &g_GC2155_MIPI_yuv_info},    {"GC0310_MIPI_yuv", &g_GC0310_MIPI_yuv_info},    {"gc030a_mipi", &g_gc030a_mipi_raw_info},    {"gc2145_mipi",&g_GC2145_MIPI_yuv_info},    {"gc2365_mipi", &g_gc2365_mipi_raw_info},#if !(defined(CONFIG_CAMERA_ISP_VERSION_V3) || defined(CONFIG_CAMERA_ISP_VERSION_V4))            {"GC0310_MIPI_yuv", &g_GC0310_MIPI_yuv_info},            {"sr030pc50_yuv", &g_sr030pc50_yuv_info},#endif#endif    {"", NULL},

在这里面注意要有你对应的前后摄像头的驱动文件的引用，如果上面几点都OK了就能正确的修改陈单双摄像头。