20161114全志R16配置为前ov5640后UVC的双摄像头

20161114全志R16配置为前ov5640后UVC的双摄像头


1、
Z:\home\wwt\uvc_r16_project\android\device\softwinner\astar-evb20\configs\camera.cfg
修改：
number_of_camera = 1
为：
number_of_camera = 2


如果不改这里，兄弟，你在camera这个APP里面是绝对看不到前后摄像头的切换选项的！！！！^_
修改ov5640的分辨率：
used_preview_size = 1
key_support_preview_size = 640x480
key_default_preview_size = 640x480


used_picture_size = 1
key_support_picture_size = 640x480
key_default_picture_size = 640x480


为（根据你驱动里面的摄像头的寄存器配置分辨率而实际修改）：
used_preview_size = 1
key_support_preview_size = 2592x1936, 2048x1536, 1600x1200, 1280x960, 1280x960, 1024x768, 1920x1080 ,1280x720, 800x600, 640x480
key_default_preview_size = 640x480


used_picture_size = 1
key_support_picture_size = 2592x1936, 2048x1536, 1600x1200, 1280x960, 1280x960, 1024x768, 1920x1080 ,1280x720, 800x600, 640x480
key_default_picture_size = 640x480




2、
Z:\home\wwt\uvc_r16_project\android\device\softwinner\astar-evb20\astar_evb20.mk
#include device/softwinner/polaris-common/prebuild/google/products/gms_minimal.mk
注释掉这里干掉Google Play。可以不改。




3、这里讲UVC配置为模块了，请注意UVC所需要的模块的加载顺序。
Z:\home\wwt\uvc_r16_project\android\device\softwinner\astar-evb20\init.sun8i.rc
默认为：
#csi module
insmod /system/vendor/modules/videobuf-core.ko
insmod /system/vendor/modules/videobuf-dma-contig.ko
        insmod /system/vendor/modules/cam_detect.ko
# insmod /system/vendor/modules/actuator.ko
# insmod /system/vendor/modules/ad5820_act.ko
insmod /system/vendor/modules/cci.ko
insmod /system/vendor/modules/vfe_os.ko
insmod /system/vendor/modules/vfe_subdev.ko
insmod /system/vendor/modules/gc0307.ko
# insmod /system/vendor/modules/ov2035.ko
insmod /system/vendor/modules/vfe_v4l2.ko


修改为：
#csi module
# /dev/video0 ov5640
insmod /system/vendor/modules/videobuf-core.ko
insmod /system/vendor/modules/videobuf-dma-contig.ko
        #insmod /system/vendor/modules/cam_detect.ko
insmod /system/vendor/modules/cci.ko
insmod /system/vendor/modules/vfe_os.ko
insmod /system/vendor/modules/vfe_subdev.ko
insmod /system/vendor/modules/ov5640.ko
insmod /system/vendor/modules/vfe_v4l2.ko

# /dev/video1 uvc
insmod /system/vendor/modules/videobuf2-core.ko
insmod /system/vendor/modules/videobuf2-memops.ko
insmod /system/vendor/modules/videobuf2-vmalloc.ko
insmod /system/vendor/modules/uvcvideo.ko




4、
Z:\home\wwt\uvc_r16_project\lichee\tools\pack\chips\sun8iw5p1\configs\default\env.cfg
推荐修改：
bootdelay=0
为：
bootdelay=3




5、不用修改：
Z:\home\wwt\uvc_r16_project\lichee\tools\pack\chips\sun8iw5p1\configs\evb-20\sys_config.fex
;--------------------------------------------------------------------------------
;vip (video input port) configuration
;vip_used: 0:disable 1:enable
;vip_mode: 0:sample one interface to one buffer 1:sample two interface to one buffer
;vip_dev_qty: The quantity of devices linked to capture bus
;
;vip_define_sensor_list: If you want use sensor detect function, please set vip_define_sensor_list = 1, and
;                                    verify that file /system/etc/hawkview/sensor_list_cfg.ini is properly configured!
;
;vip_dev(x)_pos: sensor position, "rear" or "front", if vip_define_sensor_list = 1,vip_dev(x)_pos must be configured!
;
;vip_dev(x)_isp_used 0:not use isp 1:use isp
;vip_dev(x)_fmt: 0:yuv 1:bayer raw rgb 
;vip_dev(x)_stby_mode: 0:not shut down power at standby 1:shut down power at standby
;vip_dev(x)_vflip: flip in vertical direction 0:disable 1:enable
;vip_dev(x)_hflip: flip in horizontal direction 0:disable 1:enable
;vip_dev(x)_iovdd: camera module io power handle string, pmu power supply
;vip_dev(x)_iovdd_vol: camera module io power voltage, pmu power supply
;vip_dev(x)_avdd: camera module analog power handle string, pmu power supply
;vip_dev(x)_avdd_vol: camera module analog power voltage, pmu power supply
;vip_dev(x)_dvdd: camera module core power handle string, pmu power supply
;vip_dev(x)_dvdd_vol: camera module core power voltage, pmu power supply
;vip_dev(x)_afvdd: camera module vcm power handle string, pmu power supply
;vip_dev(x)_afvdd_vol: camera module vcm power voltage, pmu power supply
;x indicates the index of the devices which are linked to the same capture bus
;fill voltage in uV, e.g. iovdd = 2.8V, vip_devx_iovdd_vol = 2800000
;fill handle string as below:
;axp22_eldo3
;axp22_dldo4
;axp22_eldo2
;fill handle string "" when not using any pmu power supply
;--------------------------------------------------------------------------------


[csi0]


vip_used                 = 1
vip_mode                 = 0
vip_dev_qty              = 1
vip_define_sensor_list     = 0
vip_csi_pck              = port:PE00<2><default><default><default>
vip_csi_mck              = port:PE01<2><default><default><default>
vip_csi_hsync            = port:PE02<2><default><default><default>
vip_csi_vsync            = port:PE03<2><default><default><default>
vip_csi_d0               = port:PE04<2><default><default><default>
vip_csi_d1               = port:PE05<2><default><default><default>
vip_csi_d2               = port:PE06<2><default><default><default>
vip_csi_d3               = port:PE07<2><default><default><default>
vip_csi_d4               = port:PE08<2><default><default><default>
vip_csi_d5               = port:PE09<2><default><default><default>
vip_csi_d6               = port:PE10<2><default><default><default>
vip_csi_d7               = port:PE11<2><default><default><default>


vip_csi_sck              = port:PE12<2><default><default><default>
vip_csi_sda              = port:PE13<2><default><default><default>


 
vip_dev0_mname           = "ov5640"
vip_dev0_pos             = "rear"
vip_dev0_lane            = 1
vip_dev0_twi_id          = 2
vip_dev0_twi_addr        = 0x78
vip_dev0_isp_used        = 0
vip_dev0_fmt             = 0
vip_dev0_stby_mode       = 1
vip_dev0_vflip           = 0
vip_dev0_hflip           = 0
vip_dev0_iovdd           = "axp22_dldo3"
vip_dev0_iovdd_vol       = 2800000
vip_dev0_avdd            = ""
vip_dev0_avdd_vol        = 2800000
vip_dev0_dvdd            = ""
vip_dev0_dvdd_vol        = 1800000
vip_dev0_afvdd           = ""
vip_dev0_afvdd_vol       = 2800000
vip_dev0_power_en        =
vip_dev0_reset           = port:PE14<1><default><default><0>
vip_dev0_pwdn            = port:PE15<1><default><default><1>
vip_dev0_flash_en        =
vip_dev0_flash_mode      =
vip_dev0_af_pwdn         =




[usbc1]
usb_used            = 1
usb_drv_vbus_gpio   = port:PD12<1><0><default><0>
usb_restrict_gpio   =
usb_host_init_state = 1
usb_restric_flag    = 0
usb_regulator_io    = "nocare"
usb_regulator_vol   = 0
usb_not_suspend     = 0




编译内核之后，
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ ./build.sh config


Welcome to mkscript setup progress
All available chips:
   0. sun8iw5p1
Choice: 0
All available platforms:
   0. android
   1. dragonboard
   2. linux
   3. tina
Choice: 0
All available kernel:
   0. linux-3.4
Choice: 0
All available boards:
   0. bell-one
   1. evb
   2. evb-20
   3. evb-rtl8723bs
   4. sc3813r
Choice: 2
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ ./build.sh 




配置USB摄像头为模块（也可以选择*直接编译进内核）：
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ cd linux-3.4/
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee/linux-3.4$ make ARCH=arm menuconfig


Device Drivers  --->
<*> Multimedia support  --->
[*]   Video capture adapters  --->
修改：
[ ]   V4L USB devices  --->
为：
[*]   V4L USB devices  --->
修改：
< >   USB Video Class (UVC) (NEW)
为
<M>   USB Video Class (UVC)




rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ cd linux-3.4/
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee/linux-3.4$ cd ..
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ 
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ ./build.sh 
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/lichee$ cd ../android/
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/android$ source build/envsetup.sh 
including device/softwinner/bellone-sc3813r/vendorsetup.sh
including device/softwinner/astar-evb20/vendorsetup.sh
including device/softwinner/r16-bell-one/vendorsetup.sh
including device/softwinner/astar-evb/vendorsetup.sh
including device/softwinner/polaris-common/vendorsetup.sh
including device/lge/mako/vendorsetup.sh
including device/lge/hammerhead/vendorsetup.sh
including device/samsung/manta/vendorsetup.sh
including device/generic/x86/vendorsetup.sh
including device/generic/mips/vendorsetup.sh
including device/generic/armv7-a-neon/vendorsetup.sh
including device/asus/tilapia/vendorsetup.sh
including device/asus/deb/vendorsetup.sh
including device/asus/grouper/vendorsetup.sh
including device/asus/flo/vendorsetup.sh
including sdk/bash_completion/adb.bash
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/android$ lunch


You're building on Linux


Lunch menu... pick a combo:
     1. aosp_arm-eng
     2. aosp_x86-eng
     3. aosp_mips-eng
     4. vbox_x86-eng
     5. bellone_sc3813r-eng
     6. astar_evb20-eng
     7. r16_bell_one-eng
     8. astar_evb-eng
     9. aosp_mako-userdebug
     10. aosp_hammerhead-userdebug
     11. aosp_manta-userdebug
     12. mini_x86-userdebug
     13. mini_mips-userdebug
     14. mini_armv7a_neon-userdebug
     15. aosp_tilapia-userdebug
     16. aosp_deb-userdebug
     17. aosp_grouper-userdebug
     18. aosp_flo-userdebug


Which would you like? [aosp_arm-eng] 6


============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.4.2
TARGET_PRODUCT=astar_evb20
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
TARGET_CPU_VARIANT=cortex-a7
HOST_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.13.0-24-generic-x86_64-with-Ubuntu-14.04-trusty
HOST_BUILD_TYPE=release
BUILD_ID=KVT49L
OUT_DIR=out
============================================


rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/android$ extract-bsp 
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/android$ make -j12
rootroot@cm-System-Product-Name:/home/wwt/uvc_r16_project/android$ pack




编译好系统之后，刷机之后请注意先让开发板的Android4.4启动完成之后再插入USB摄像头。
全志R16的android4.4启动之后再插入USB摄像头。
这个配置就可以设置
ov5640为后置摄像头：/dev/video0
UVC为前置摄像头：/dev/video1




如果接上USB摄像头再启动，android是被：
ov5640为前置摄像头，有设备节点/dev/video1，打开失败。
UVC为后置摄像头：/dev/video0
原因未知。




参考资料：
http://blog.csdn.net/u010257920/article/details/49925807
A20 linux(dragonboard)同时使用Parallel CSI Camera及UVC


http://blog.csdn.net/guoyihoney/article/details/46966603
A20平台增加camera


http://blog.csdn.net/it_fish_man/article/details/17395469
Android usb camera设备添加


http://blog.csdn.net/zmnqazqaz/article/details/49535531
RK3288 uvc摄像头调试


http://blog.csdn.net/edsam49/article/details/8886543
USB Camera在android车机上应用前景及初试小结