声卡0怎么配置才能跟HDMI同时输出一样的声音，下面是具体描述：
1、硬件连接
声卡0的连接是芯片的ADC音频输出脚直接接到DA芯片输出

2、cat /proc/asound/cards
0 [rockchiprk3229 ]: rockchip_rk3229 - rockchip,rk3229
rockchip,rk3229
1 [rockchiphdmi ]: rockchip_hdmi - rockchip,hdmi
rockchip,hdmi
2 [ROCKCHIPSPDIF ]: ROCKCHIP_SPDIF - ROCKCHIP,SPDIF
ROCKCHIP,SPDIF

3、具体修改

frameworks/base$ git diff ./
diff --git a/services/core/java/com/androidrver/WiredAccessoryManager.java b/services/core/java/com/androidrver/WiredAccessoryManager.java
index bf6299cffdb3..67d9f972a07a 100644
--- a/services/core/java/com/androidrver/WiredAccessoryManager.java
+++ b/services/core/java/com/androidrver/WiredAccessoryManager.java
@@ -55,7 +55,7 @@ import java.util.Locale;
  */
 final class WiredAccessoryManager implements WiredAccessoryCallbacks {
     private static final String TAG = WiredAccessoryManager.class.getSimpleName();
-    private static final boolean LOG = false;
+    private static final boolean LOG = true;

     private static final int BIT_HEADSET = (1 << 0);
     private static final int BIT_HEADSET_NO_MIC = (1 << 1);
@@ -408,6 +408,7 @@ final class WiredAccessoryManager implements WiredAccessoryCallbacks {
             //
             // If the kernel does not have an "hdmi_audio" switch, just fall back on the older
             // "hdmi" switch instead.
+/*
             uei = new UEventInfo(NAME_HDMI_AUDIO, BIT_HDMI_AUDIO, 0, 0);
             if (uei.checkSwitchExists()) {
                 retVal.add(uei);
@@ -420,6 +421,7 @@ final class WiredAccessoryManager implements WiredAccessoryCallbacks {
                 }
             }

+           */
             return retVal;
         }

@@ -530,7 +532,7 @@ final class WiredAccessoryManager implements WiredAccessoryCallbacks {
             // new state will be like STATE=MICROPHONE=1\nHEADPHONE=0
             updateBit(maskAndState, BIT_HEADSET_NO_MIC, status, "HEADPHONE") ;
             updateBit(maskAndState, BIT_HEADSET, status,"MICROPHONE") ;
-            updateBit(maskAndState, BIT_HDMI_AUDIO, status,"HDMI") ;
+            // updateBit(maskAndState, BIT_HDMI_AUDIO, status,"HDMI") ;
             updateBit(maskAndState, BIT_DP_AUDIO, status,"DP");
             updateBit(maskAndState, BIT_LINEOUT, status,"LINE-OUT") ;
             if (LOG) Slog.v(TAG, "mask " + maskAndState[0] + " state " + maskAndState[1]);

tinyalsa_hal$ vim audio_hw.c
lxt@ubuntu101:~/audio/tinyalsa_hal$ git diff ./
diff --git a/tinyalsa_hal/audio_hw.c b/tinyalsa_hal/audio_hw.c
index fb1471e..dfec724 100755
--- a/tinyalsa_hal/audio_hw.c
+++ b/tinyalsa_hal/audio_hw.c
@@ -994,7 +994,7 @@ static int start_output_stream(struct stream_out *out)
     out->device &= ~(AUDIO_DEVICE_OUT_AUX_DIGITAL | AUDIO_DEVICE_OUT_SPDIF);
 #endif

-    if (out->device & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
+    //if (out->device & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
         audio_devices_t route_device = out->device & AUDIO_DEVICE_OUT_AUX_DIGITAL;
         route_pcm_card_open(adev->dev_out[SND_OUT_SOUND_CARD_HDMI].card, getRouteFromDevice(route_device));

@@ -1037,7 +1037,7 @@ static int start_output_stream(struct stream_out *out)
             ALOGD("The current HDMI is DVI mode");
             out->device |= AUDIO_DEVICE_OUT_SPEAKER;
         }
-    }
+    //}

     if (out->device & (AUDIO_DEVICE_OUT_SPEAKER |
                        AUDIO_DEVICE_OUT_WIRED_HEADSET |