From 3bdd3cf037d41b0917d88f1f71a7f6d777c80f01 Mon Sep 17 00:00:00 2001
From: Andy Hung <hunga@google.com>
Date: Fri, 13 May 2022 12:17:45 -0700
Subject: [PATCH] AudioServer: dump BluetoothClass.Device

Identify the connected BT device info for
spatialization.

Test: adb shell dumpsys audio
Bug: 232558126
Change-Id: I84d6be1d6671aee0de9f235af4d8363b6286e974
---
 .../com/android/server/audio/BtHelper.java    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/services/core/java/com/android/server/audio/BtHelper.java b/services/core/java/com/android/server/audio/BtHelper.java
index 0aa9a2bc4990b..0e38232757777 100644
--- a/services/core/java/com/android/server/audio/BtHelper.java
+++ b/services/core/java/com/android/server/audio/BtHelper.java
@@ -35,6 +35,7 @@ import android.media.BluetoothProfileConnectionInfo;
 import android.os.Binder;
 import android.os.UserHandle;
 import android.provider.Settings;
+import android.text.TextUtils;
 import android.util.Log;
 
 import com.android.internal.annotations.GuardedBy;
@@ -911,10 +912,65 @@ public class BtHelper {
         }
     }
 
+    /**
+     * Returns the string equivalent for the btDeviceClass class.
+     */
+    public static String btDeviceClassToString(int btDeviceClass) {
+        switch (btDeviceClass) {
+            case BluetoothClass.Device.AUDIO_VIDEO_UNCATEGORIZED:
+                return "AUDIO_VIDEO_UNCATEGORIZED";
+            case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
+                return "AUDIO_VIDEO_WEARABLE_HEADSET";
+            case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
+                return "AUDIO_VIDEO_HANDSFREE";
+            case 0x040C:
+                return "AUDIO_VIDEO_RESERVED_0x040C"; // uncommon
+            case BluetoothClass.Device.AUDIO_VIDEO_MICROPHONE:
+                return "AUDIO_VIDEO_MICROPHONE";
+            case BluetoothClass.Device.AUDIO_VIDEO_LOUDSPEAKER:
+                return "AUDIO_VIDEO_LOUDSPEAKER";
+            case BluetoothClass.Device.AUDIO_VIDEO_HEADPHONES:
+                return "AUDIO_VIDEO_HEADPHONES";
+            case BluetoothClass.Device.AUDIO_VIDEO_PORTABLE_AUDIO:
+                return "AUDIO_VIDEO_PORTABLE_AUDIO";
+            case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
+                return "AUDIO_VIDEO_CAR_AUDIO";
+            case BluetoothClass.Device.AUDIO_VIDEO_SET_TOP_BOX:
+                return "AUDIO_VIDEO_SET_TOP_BOX";
+            case BluetoothClass.Device.AUDIO_VIDEO_HIFI_AUDIO:
+                return "AUDIO_VIDEO_HIFI_AUDIO";
+            case BluetoothClass.Device.AUDIO_VIDEO_VCR:
+                return "AUDIO_VIDEO_VCR";
+            case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_CAMERA:
+                return "AUDIO_VIDEO_VIDEO_CAMERA";
+            case BluetoothClass.Device.AUDIO_VIDEO_CAMCORDER:
+                return "AUDIO_VIDEO_CAMCORDER";
+            case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_MONITOR:
+                return "AUDIO_VIDEO_VIDEO_MONITOR";
+            case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_DISPLAY_AND_LOUDSPEAKER:
+                return "AUDIO_VIDEO_VIDEO_DISPLAY_AND_LOUDSPEAKER";
+            case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_CONFERENCING:
+                return "AUDIO_VIDEO_VIDEO_CONFERENCING";
+            case 0x0444:
+                return "AUDIO_VIDEO_RESERVED_0x0444"; // uncommon
+            case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_GAMING_TOY:
+                return "AUDIO_VIDEO_VIDEO_GAMING_TOY";
+            default: // other device classes printed as a hex string.
+                return TextUtils.formatSimple("0x%04x", btDeviceClass);
+        }
+    }
+
     //------------------------------------------------------------
     /*package*/ void dump(PrintWriter pw, String prefix) {
         pw.println("\n" + prefix + "mBluetoothHeadset: " + mBluetoothHeadset);
         pw.println(prefix + "mBluetoothHeadsetDevice: " + mBluetoothHeadsetDevice);
+        if (mBluetoothHeadsetDevice != null) {
+            final BluetoothClass bluetoothClass = mBluetoothHeadsetDevice.getBluetoothClass();
+            if (bluetoothClass != null) {
+                pw.println(prefix + "mBluetoothHeadsetDevice.DeviceClass: "
+                        + btDeviceClassToString(bluetoothClass.getDeviceClass()));
+            }
+        }
         pw.println(prefix + "mScoAudioState: " + scoAudioStateToString(mScoAudioState));
         pw.println(prefix + "mScoAudioMode: " + scoAudioModeToString(mScoAudioMode));
         pw.println("\n" + prefix + "mHearingAid: " + mHearingAid);