本文主要是介绍mt6735 [Speaker Customization]添加外置PA等Speaker客制化问题整理，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
| [DESCRIPTION] 对于MT6589、MT6572、MT6582的Speaker的客制化需求部分的一些整理。 一些可能的配置请参考下面的表格，Solution请根据序号参考对应的Solution. 外置PA的驱动，请参考如下方式完成：也可参考 [FAQ05881] [Audio Driver] 6589、6572、6582喇叭无声，软件上应该如何配置 把CUSTOM_KERNEL_SOUND配置为相应PA驱动的文件夹名，然后实做具体的PA驱动。 例子：使用yad的外部PA，则CUSTOM_KERNEL_SOUND = amp_yad，然后实做\alps\mediatek\custom\common\kernel\sound\ amp_yad\yusu_android_speaker.c 注解：Yes:表示Speaker连接的位置；No:表示与Speaker无关；NC表示不接任何设备； Not Support：表示此种配置无法达到预期效果; 2in1 Speaker: 指的是Speaker+Receiver.  [SOLUTION] #1.Compile Option设定： mtk_2IN1_SPK_SUPPORT= no Audio_custom_exp.h (mediatek\custom\[$projectname]\hal\audioflinger\audio) //#define USING_EXTAMP_HP Audio_Customization_Common.h(alps\mediatek\custom\common\hal\audioflinger) //#define ENABLE_STEREO_SPEAKER -------------------------------------------------------------------------------- #2.Compile Option设定： MTK_2IN1_SPK_SUPPORT= no Audio_custom_exp.h (mediatek\custom\[$projectname]\hal\audioflinger\audio) #define USING_EXTAMP_HP Audio_Customization_Common.h(alps\mediatek\custom\common\hal\audioflinger) //#define ENABLE_STEREO_SPEAKER -------------------------------------------------------------------------------- #3.Compile Option设定： MTK_2IN1_SPK_SUPPORT= yes Audio_custom_exp.h (mediatek\custom\[$projectname]\hal\audioflinger\audio) //#define USING_EXTAMP_HP Audio_Customization_Common.h(alps\mediatek\custom\common\hal\audioflinger) //#define ENABLE_STEREO_SPEAKER -------------------------------------------------------------------------------- #4.Compile Option设定： MTK_2IN1_SPK_SUPPORT= no Audio_custom_exp.h (mediatek\custom\[$projectname]\hal\audioflinger\audio) #define USING_EXTAMP_HP Audio_Customization_Common.h(alps\mediatek\custom\common\hal\audioflinger) #define ENABLE_STEREO_SPEAKER -------------------------------------------------------------------------------- #5.Compile Option设定： MTK_2IN1_SPK_SUPPORT= no Audio_custom_exp.h (mediatek\custom\[$projectname]\hal\audioflinger\audio) //#define USING_EXTAMP_HP Audio_Customization_Common.h(alps\mediatek\custom\common\hal\audioflinger) 如果外置PA接在AU_HPL,那么 //#define ENABLE_STEREO_SPEAKER 如果外置PA接在 AU_HPR,那么 #define ENABLE_STEREO_SPEAKER 开启Audio Path所需的改动： AudioResourceManager.cpp(alps\mediatek\platform\[$chip]\hardware\audio\aud_drv) a.增加如下函数 //{@Special_PA /****************************************************************** **a function to reset DL device for using special dual amp:internal PA+ one external PA with AUD_HPL/R **mDlOutputDevice:Ori DL device; **DeviceCount:Ori DL device Count. ********************************************************************/ void CheckDLForSpDualAMP(unsigned int &mDlOutputDevice,uint32 &DeviceCount){ ALOGD("+Special_PA mDlOutputDevice(0x%x) DeviceCount = %d", mDlOutputDevice, DeviceCount); if((DeviceCount==1)&&(mDlOutputDevice&AUDIO_DEVICE_OUT_SPEAKER)){ mDlOutputDevice |= AUDIO_DEVICE_OUT_WIRED_HEADSET; DeviceCount = PopCount(mDlOutputDevice); } ALOGD("-Special_PA mDlOutputDevice(0x%x) DeviceCount = %d", mDlOutputDevice, DeviceCount); } //end Special_PA} b.在以下三处分别调用新增的函数 CheckDLForSpDualAMP status_t AudioResourceManager::TurnonAudioDevice(unsigned int mDlOutputDevice) { uint32 DeviceCount = PopCount(mDlOutputDevice); ALOGD("TurnonAudioDevice = 0x%x DeviceCount = %d", mDlOutputDevice, DeviceCount); //{@Special_PA CheckDLForSpDualAMP(mDlOutputDevice,DeviceCount); //} if (DeviceCount == 1) ...... } status_t AudioResourceManager::TurnonAudioDeviceIncall(unsigned int mDlOutputDevice) { SetMICInvserse(MMIcInverseSetting); uint32 DeviceCount = PopCount(mDlOutputDevice); ALOGD("TurnonAudioDevice = 0x%x DeviceCount = %d", mDlOutputDevice, DeviceCount); //{@Special_PA CheckDLForSpDualAMP(mDlOutputDevice,DeviceCount); //} if (DeviceCount == 1) ...... } status_t AudioResourceManager::TurnoffAudioDevice(unsigned int mDlOutputDevice) { uint32 DeviceCount = PopCount(mDlOutputDevice); ALOGD("TurnoffAudioDevice = 0x%x DeviceCount = %d", mDlOutputDevice, DeviceCount); //{@Special_PA CheckDLForSpDualAMP(mDlOutputDevice,DeviceCount); //} if (DeviceCount == 1) ...... } Speaker音量的tuning: 请参考FAQ08356『[Audio Volume]来电\闹钟\短信提示\铃声预览\拍照音等，在播放过程中插入或者拔出耳机，外放中 的铃声音异常』，参考其中调整 Headset_LouDSPeaker mode的方式来调整两个Speaker的音量。 -------------------------------------------------------------------------------- #6.只需要在#5的基础上，修改该Compile Option设定： MTK_2IN1_SPK_SUPPORT= yes 其它部分的改动以及音量调整方式与#5完全一样。 -------------------------------------------------------------------------------- PS：#5和#6中的双Speaker连接方式会导致两个Speaker的音质有所 差异，请三思而后行，切忌切忌。 MT6735相关资料参考地址：http://bbs.16rd.com/thread-454398-1-1.html |
这篇关于mt6735 [Speaker Customization]添加外置PA等Speaker客制化问题整理的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
