rk3288板上添加hdmiin功能

最新推荐文章于 2025-04-29 22:47:50 发布

linux_qian

最新推荐文章于 2025-04-29 22:47:50 发布

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分类专栏： Android底层文章标签： rk3288 hdmiin tc358749 Android camera

本文链接：https://blog.youkuaiyun.com/linux_qian/article/details/81127539

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由于公司买的板子，供应商nb轰轰不给开源，自己拿着老掉牙的Android源码一点点添加功能，以下就是添加hdmiin功能辛酸泪记录史。

（1）hdmiin接口使用tc358749芯片转换。

添加tc358749驱动源码，firefly官网上Android系统源码已经开源，可以在里面找到tc358749.c/tc358749.h源码，在/kernel/driver/media/video/rk_camsys/路径下。

驱动添加好之后，修改设备树文件，找到板子配套dts文件，我这个是rk3288-tb_8846.dts。

由于hdminin数据走i2c通道，所以把tc358749节点挂在i2c上，套路了供应商是i2c4通道。下面就是配置引脚，引脚配置需要根据电路图设计，而拿不到电路图的我在完好的板子上，利用“cat sys/kernel/debug/gpio”命令找到hdmiin成功申请gpio引脚。最终配置如下：

tc358749@0f {

compatible = "rockchip,tc359849";

reg = <0x0f>;

gpio-power = <&gpio7 GPIO_C5 GPIO_ACTIVE_HIGH>;

gpio-stanby = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;

gpio-reset = <&gpio8 GPIO_B0 GPIO_ACTIVE_HIGH>;

gpio-int = <&gpio8 GPIO_A7 GPIO_ACTIVE_HIGH>;

status = "okay";

};

经启动hdmiin应用程序，dmesg命令记录，测试设备树和驱动文件连接成功，驱动成功完成探测函数。

（2）此时，hdmiin应用程序打开，闪退。

经“adb wait-for-usb-device shell dmesg”命令，打印开机内核log。

发现出现“iommu status not consistent,check the dts file!”错误，经检查源码，发现vpu节点iommu未使能，打开rk3288.dtsi设备树文件，修改vpu节点iommu参数。

（3）此时，打开hdmiin应用程序，显示黑屏。

因为hdmiin做成一个camera接口，所以经过hal层。经“adb shell logcat”命令打印Android系统开机log，发现有多个camera设备。如下：

D/CameraHal( 188): ParserSensorInfo(46): SensorName(OV5648)

D/CameraHal( 188): ParserSensorInfo(46): SensorName(OV2659)

D/CameraHal( 188): ParserSensorInfo(46): SensorName(GS8604)

D/CameraHal( 188): ParserSensorInfo(46): SensorName(IMX214)

D/CameraHal( 188): ParserSensorInfo(46): SensorName(TC358749XBG)等等。。。

找到/hardware/rockchip/camera/Config/下cam_board_rk3288.xml文件，除TC358749XBG外camera设备全部屏蔽掉。

并且根据电路板设计修改tc358749的sensor参数：

<CamDevie>
           <HardWareInfo>
               <Sensor>
                   <SensorName name="TC358749XBG" ></SensorName>
                   <SensorDevID IDname="CAMSYS_DEVID_SENSOR_1A"></SensorDevID> //id name
                   <SensorHostDevID busnum="CAMSYS_DEVID_MARVIN" ></SensorHostDevID>
                   <SensorI2cBusNum busnum="4"></SensorI2cBusNum> //i2c通道
                   <SensorI2cAddrByte byte="2"></SensorI2cAddrByte> //i2c地址长度
                   <SensorI2cRate rate="100000"></SensorI2cRate>
                   <SensorMclk mclk="27000000"></SensorMclk>
                   <SensorAvdd name="NC" min="0" max="0"></SensorAvdd>
                   <SensorDovdd name="NC" min="18000000" max="18000000"></SensorDovdd>
                   <SensorDvdd name="NC" min="0" max="0"></SensorDvdd>
                   <SensorGpioPwdn ioname="NC" active="0"></SensorGpioPwdn>
                   <SensorGpioRst ioname="NC" active="0"></SensorGpioRst>
                   <SensorGpioPwen ioname="NC" active="1"></SensorGpioPwen>
                   <SensorFacing facing="back"></SensorFacing>
                   <SensorInterface interface="MIPI"></SensorInterface>
                   <SensorMirrorFlip mirror="0"></SensorMirrorFlip>
                   <SensorOrientation orientation="0"></SensorOrientation>
                   <SensorPowerupSequence seq="1234"></SensorPowerupSequence>
                   <SensorFovParemeter h="60.0" v="60.0"></SensorFovParemeter>
                   <SensorAWB_Frame_Skip fps="0"></SensorAWB_Frame_Skip>
   <SensorPhy phyMode="CamSys_Phy_Mipi" lane="4" phyIndex="0" sensorFmt="CamSys_Fmt_Yuv422_8b">

</SensorPhy> //mipi通道
               </Sensor>
               <VCM>
                   <VCMDrvName name="NC"></VCMDrvName>
                   <VCMName name="NC"></VCMName>
                   <VCMI2cBusNum busnum="0"></VCMI2cBusNum>
                   <VCMI2cAddrByte byte="0"></VCMI2cAddrByte>
                   <VCMI2cRate rate="0"></VCMI2cRate>
                   <VCMVdd name="NC" min="0" max="0"></VCMVdd>
                   <VCMGpioPwdn ioname="NC" active="0"></VCMGpioPwdn>
                   <VCMGpioPower ioname="NC" active="0"></VCMGpioPower>
                   <VCMCurrent start="0" rated="100" vcmmax="100" stepmode="4" drivermax="100"></VCMCurrent>
               </VCM>
               <Flash>
                   <FlashName name="NC"></FlashName>
                   <FlashI2cBusNum busnum="0"></FlashI2cBusNum>
                   <FlashI2cAddrByte byte="0"></FlashI2cAddrByte>
                   <FlashI2cRate rate="0"></FlashI2cRate>
                   <FlashTrigger ioname="NC" active="0"></FlashTrigger>
                   <FlashEn ioname="NC" active="0"></FlashEn>
                   <FlashModeType mode="1"></FlashModeType>
                   <FlashLuminance luminance="0"></FlashLuminance>
                   <FlashColorTemp colortemp="0"></FlashColorTemp>
               </Flash>
           </HardWareInfo>
           <SoftWareInfo>
               <AWB>
                   <AWB_Auto support="0"></AWB_Auto>
                   <AWB_Incandescent support="0"></AWB_Incandescent>
                   <AWB_Fluorescent support="0"></AWB_Fluorescent>
                   <AWB_Warm_Fluorescent support="0"></AWB_Warm_Fluorescent>
                   <AWB_Daylight support="0"></AWB_Daylight>
                   <AWB_Cloudy_Daylight support="0"></AWB_Cloudy_Daylight>
                   <AWB_Twilight support="0"></AWB_Twilight>
                   <AWB_Shade support="0"></AWB_Shade>
               </AWB>
               <Sence>
                   <Sence_Mode_Auto support="0"></Sence_Mode_Auto>
                   <Sence_Mode_Action support="0"></Sence_Mode_Action>
                   <Sence_Mode_Portrait support="0"></Sence_Mode_Portrait>
                   <Sence_Mode_Landscape support="0"></Sence_Mode_Landscape>
                   <Sence_Mode_Night support="0"></Sence_Mode_Night>
                   <Sence_Mode_Night_Portrait support="0"></Sence_Mode_Night_Portrait>
                   <Sence_Mode_Theatre support="0"></Sence_Mode_Theatre>
                   <Sence_Mode_Beach support="0"></Sence_Mode_Beach>
                   <Sence_Mode_Snow support="0"></Sence_Mode_Snow>
                   <Sence_Mode_Sunset support="0"></Sence_Mode_Sunset>
                   <Sence_Mode_Steayphoto support="0"></Sence_Mode_Steayphoto>
                   <Sence_Mode_Pireworks support="0"></Sence_Mode_Pireworks>
                   <Sence_Mode_Sports support="0"></Sence_Mode_Sports>
                   <Sence_Mode_Party support="0"></Sence_Mode_Party>
                   <Sence_Mode_Candlelight support="0"></Sence_Mode_Candlelight>
                   <Sence_Mode_Barcode support="0"></Sence_Mode_Barcode>
                   <Sence_Mode_HDR support="0"></Sence_Mode_HDR>
               </Sence>
               <Effect>
                   <Effect_None support="1"></Effect_None>
                   <Effect_Mono support="0"></Effect_Mono>
                   <Effect_Solarize support="0"></Effect_Solarize>
                   <Effect_Negative support="0"></Effect_Negative>
                   <Effect_Sepia support="0"></Effect_Sepia>
                   <Effect_Posterize support="0"></Effect_Posterize>
                   <Effect_Whiteboard support="0"></Effect_Whiteboard>
                   <Effect_Blackboard support="0"></Effect_Blackboard>
                   <Effect_Aqua support="0"></Effect_Aqua>
               </Effect>
               <FocusMode>
                   <Focus_Mode_Auto support="0"></Focus_Mode_Auto>
                   <Focus_Mode_Infinity support="0"></Focus_Mode_Infinity>
                   <Focus_Mode_Marco support="0"></Focus_Mode_Marco>
                   <Focus_Mode_Fixed support="0"></Focus_Mode_Fixed>
                   <Focus_Mode_Edof support="0"></Focus_Mode_Edof>
                   <Focus_Mode_Continuous_Video support="0"></Focus_Mode_Continuous_Video>
                   <Focus_Mode_Continuous_Picture support="0"></Focus_Mode_Continuous_Picture>
               </FocusMode>
               <FlashMode>
                   <Flash_Mode_Off support="0"></Flash_Mode_Off>
                   <Flash_Mode_On support="0"></Flash_Mode_On>
                   <Flash_Mode_Torch support="0"></Flash_Mode_Torch>
                   <Flash_Mode_Auto support="0"></Flash_Mode_Auto>
                   <Flash_Mode_Red_Eye support="0"></Flash_Mode_Red_Eye>
               </FlashMode>
               <AntiBanding>
                   <Anti_Banding_Auto support="0"></Anti_Banding_Auto>
                   <Anti_Banding_50HZ support="0"></Anti_Banding_50HZ>
                   <Anti_Banding_60HZ support="0"></Anti_Banding_60HZ>
                   <Anti_Banding_Off support="0"></Anti_Banding_Off>
               </AntiBanding>
               <HDR support="0"></HDR>
               <ZSL support="0"></ZSL>
               <DigitalZoom support="1"></DigitalZoom>
               <Continue_SnapShot support="1"></Continue_SnapShot>
               <InterpolationRes resolution="0"></InterpolationRes>
               <PreviewSize width="1280" height="720"></PreviewSize>
               <FaceDetect support="0" MaxNum="0"></FaceDetect>
               <Cproc support="0" contrast="1.1" saturation="1.8" hue="0" brightness="0"></Cproc>
               <Gammaout support = "0" gamma = "0.5" offset = "0"></Gammaout>
               <DV>
                   <DV_QCIF name="qcif" width="176" height="144" fps="30" support="0"></DV_QCIF>
                   <DV_QVGA name="qvga" width="320" height="240" fps="30" support="0"></DV_QVGA>
                   <DV_CIF name="cif" width="352" height="288" fps="30" support="0"></DV_CIF>
                   <DV_VGA name="480p" width="640" height="480" fps="30" support="0"></DV_VGA>
                   <DV_480P name="480p" width="720" height="480" fps="30" support="0"></DV_480P>
                   <DV_720P name="720p" width="1280" height="720" fps="60" support="1"></DV_720P>
                   <DV_1080P name="1080p" width="1920" height="1080" fps="60" support="1"></DV_1080P>
               </DV>
           </SoftWareInfo>
       </CamDevie>