Camera
Update time：2018-04-13 Views：3634
Board Resource
There are two MIPI camera interface on the AIO-3399J development board, with maximum input resolution of 14M (4416x3312) pixels. You can also connect USB cameras to the board.
This article will introduce how to make the camera work properly, using OV13850 as an example.
Board Interface
DTS Configuration
isp0: isp@ff910000 {
…
status = "okay";
}
isp1: isp@ff920000 {
…
status = "okay";
}
Driver
The code directories of camera are shown as followed:
Android： `- hardware/rockchip/camera |- CameraHal // HAL source code `- SiliconImage // ISP library, including driver source code of all supported modules. `- isi/drv/OV13850 // Driver source code of OV13850 module. `- calib/OV13850.xml // Calibration parameter of OV13850 module. `- device/rockchip/rk3399/ |- rk3399_firefly_aio_box | `- cam_board.xml // Parameter Configuration Kernel： |- kernel/drivers/media/video/rk_camsys // CamSys driver source code `- kernel/include/media/camsys_head.h
Configuration Theory
What you need to configure the camera is to make the pins and clock work properly.
According to the schematic diagram below, you need to provide: AF_VDD28、DOVDD18、AVDD28、DVDD12、PWDN1、RST and MCLK.
MIPI interface
AF_VDD28 is provided by hardware connection. No configuration is needed.
DOVDD18、AVDD28
The DOVDD18 and AVDD28 are controlled by DVP_PWR:
RK3399 DVP_PWR is controled by GPIO1_C7 .
->
DVDD12
DVDD12 is controlled by CIF_PWER：
CIF_PWER is connected to GPIO7_B4 .
->
PWDN1, RST
PWDN1 and RST are connected to GPIO2_B6 and GPIO2_B7 respectively:
All the pins are configured in cam_board.xml, with the exception of DVDD12 (CIF_POWER), which is configured in DTS and driver.
Configuration Steps
Android Layer Configuration
Modify device/rockchip/rk3399/$(TARGET_PRODUCT)/cam_board.xml to configure camera：
<BoardFile> <BoardXmlVersion version="v0.0xf.0"></BoardXmlVersion> <CamDevie> <HardWareInfo> <Sensor> <SensorName name="OV13850"/> <SensorLens name="50013A1"/> <SensorDevID IDname="CAMSYS_DEVID_SENSOR_1B"/> <SensorHostDevID busnum="CAMSYS_DEVID_MARVIN"/> <SensorI2cBusNum busnum="1"/> <SensorI2cAddrByte byte="2"/> <SensorI2cRate rate="100000"/> <SensorAvdd name="NC" min="28000000" max="28000000" delay="0"/> <SensorDvdd name="NC" min="12000000" max="12000000" delay="0"/> <SensorDovdd name="NC" min="18000000" max="18000000" delay="5000"/> <SensorMclk mclk="24000000" delay="1000"/> <SensorGpioPwen ioname="RK30_PIN1_PC7" active="1" delay="1000"/> <SensorGpioRst ioname="RK30_PIN0_PB0" active="0" delay="1000"/> <SensorGpioPwdn ioname="RK30_PIN2_PD4" active="0" delay="0"/> <SensorFacing facing="back"/> <SensorInterface interface="MIPI"/> <SensorMirrorFlip mirror="0"/> <SensorOrientation orientation="180"/> <SensorPowerupSequence seq="1234"/> <SensorFovParemeter h="60.0" v="60.0"/> <SensorAWB_Frame_Skip fps="15"/> <SensorPhy phyMode="CamSys_Phy_Mipi" lane="2" phyIndex="1" sensorFmt="CamSys_Fmt_Raw_10b"/> </Sensor> <VCM> <VCMDrvName name="DW9714"/> <VCMName name="HuaYong6505"/> <VCMI2cBusNum busnum="1"/> <VCMI2cAddrByte byte="0"/> <VCMI2cRate rate="0"/> <VCMVdd name="NC" min="0" max="0" delay="0"/> <VCMGpioPower ioname="NC" active="0" delay="1000"/> <VCMGpioPwdn ioname="NC" active="0" delay="0"/> <VCMCurrent start="20" rated="80" vcmmax="100" stepmode="13" drivermax="100"/> </VCM> <Flash> <FlashName name="Internal"/> <FlashI2cBusNum busnum="0"/> <FlashI2cAddrByte byte="0"/> <FlashI2cRate rate="0"/> <FlashTrigger ioname="NC" active="0"/> <FlashEn ioname="NC" active="0"/> <FlashModeType mode="1"/> <FlashLuminance luminance="0"/> <FlashColorTemp colortemp="0"/> </Flash> </HardWareInfo> <SoftWareInfo> <AWB> <AWB_Auto support="1"/> <AWB_Incandescent support="1"/> <AWB_Fluorescent support="1"/> <AWB_Warm_Fluorescent support="1"/> <AWB_Daylight support="1"/> <AWB_Cloudy_Daylight support="1"/> <AWB_Twilight support="1"/> <AWB_Shade support="1"/> </AWB> <Sence> <Sence_Mode_Auto support="1"/> <Sence_Mode_Action support="1"/> <Sence_Mode_Portrait support="1"/> <Sence_Mode_Landscape support="1"/> <Sence_Mode_Night support="1"/> <Sence_Mode_Night_Portrait support="1"/> <Sence_Mode_Theatre support="1"/> <Sence_Mode_Beach support="1"/> <Sence_Mode_Snow support="1"/> <Sence_Mode_Sunset support="1"/> <Sence_Mode_Steayphoto support="1"/> <Sence_Mode_Pireworks support="1"/> <Sence_Mode_Sports support="1"/> <Sence_Mode_Party support="1"/> <Sence_Mode_Candlelight support="1"/> <Sence_Mode_Barcode support="1"/> <Sence_Mode_HDR support="1"/> </Sence> <Effect> <Effect_None support="1"/> <Effect_Mono support="1"/> <Effect_Solarize support="1"/> <Effect_Negative support="1"/> <Effect_Sepia support="1"/> <Effect_Posterize support="1"/> <Effect_Whiteboard support="1"/> <Effect_Blackboard support="1"/> <Effect_Aqua support="1"/> </Effect> <FocusMode> <Focus_Mode_Auto support="1"/> <Focus_Mode_Infinity support="1"/> <Focus_Mode_Marco support="1"/> <Focus_Mode_Fixed support="1"/> <Focus_Mode_Edof support="1"/> <Focus_Mode_Continuous_Video support="0"/> <Focus_Mode_Continuous_Picture support="1"/> </FocusMode> <FlashMode> <Flash_Mode_Off support="1"/> <Flash_Mode_On support="1"/> <Flash_Mode_Torch support="1"/> <Flash_Mode_Auto support="1"/> <Flash_Mode_Red_Eye support="1"/> </FlashMode> <AntiBanding> <Anti_Banding_Auto support="1"/> <Anti_Banding_50HZ support="1"/> <Anti_Banding_60HZ support="1"/> <Anti_Banding_Off support="1"/> </AntiBanding> <HDR support="1"/> <ZSL support="1"/> <DigitalZoom support="1"/> <Continue_SnapShot support="1"/> <InterpolationRes resolution="0"/> <PreviewSize width="1920" height="1080"/> <FaceDetect support="0" MaxNum="1"/> <DV> <DV_QCIF name="qcif" width="176" height="144" fps="10" support="1"/> <DV_QVGA name="qvga" width="320" height="240" fps="10" support="1"/> <DV_CIF name="cif" width="352" height="288" fps="10" support="1"/> <DV_VGA name="480p" width="640" height="480" fps="10" support="0"/> <DV_480P name="480p" width="720" height="480" fps="10" support="0"/> <DV_720P name="720p" width="1280" height="720" fps="10" support="1"/> <DV_1080P name="1080p" width="1920" height="1080" fps="10" support="1"/> </DV> </SoftWareInfo> </CamDevie> </BoardFile>
