From fff37da08d14fcde6446e35e448f7cc0e7582821 Mon Sep 17 00:00:00 2001
From: Jack He <siyuanh@google.com>
Date: Tue, 20 Jun 2017 17:07:40 -0700
Subject: [PATCH] Support battery level reporting via Plantronics XEVENT (1/2)

* Add related constants to BluetoothHeadset

Bug: 35874078
Test: make, test with supporting headsets
Change-Id: Ied089a065bf9caa0d03f681950fefa2ea990bb3e
Merged-In: Ied089a065bf9caa0d03f681950fefa2ea990bb3e
(cherry picked from commit 0fcbba25b7ac7fd59367c8c9ba3080a3e6ade934)
---
 core/java/android/bluetooth/BluetoothHeadset.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/core/java/android/bluetooth/BluetoothHeadset.java b/core/java/android/bluetooth/BluetoothHeadset.java
index 788732c49e501..900f005273c6c 100644
--- a/core/java/android/bluetooth/BluetoothHeadset.java
+++ b/core/java/android/bluetooth/BluetoothHeadset.java
@@ -199,6 +199,18 @@ public final class BluetoothHeadset implements BluetoothProfile {
      */
     public static final String VENDOR_RESULT_CODE_COMMAND_ANDROID = "+ANDROID";
 
+    /**
+     * A vendor-specific AT command
+     * @hide
+     */
+    public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT = "+XEVENT";
+
+    /**
+     * Battery level indicator associated with {@link #VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT}
+     * @hide
+     */
+    public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT_BATTERY_LEVEL = "BATTERY";
+
     /**
      * Headset state when SCO audio is not connected.
      * This state can be one of