From 11798b011c962b602217b479130d413f3b30f19a Mon Sep 17 00:00:00 2001
From: Liejun Tao <baibai@motorola.com>
Date: Fri, 18 Dec 2015 14:59:01 -0600
Subject: Enhance AVRCP Absolute Volume control implementation

1. Remember the current local volume level, current remote volume level.
When user adjusts the volume, compare the returned remote volume
level with desired volume level, if they don't match, do retry.

2.Learn and remember the volume mapping between phone volume level and
remote volume level as the user adjusts volume. When user adjusts to one
remembered volume level, use the mapping directly. Otherwise calculate
the remote volume level and try with method described in step one.

3. Blacklist device if remote device does not tell its initial volume.

4. Define optional threshold for initial volume level to avoid headset
being too loud upon re-connection.

Signed-off-by: Liejun Tao <baibai@motorola.com>
Change-Id: I78112f5f401666f5a680561473a5c7f914071fbe
---
 res/values/config.xml | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'res/values')

diff --git a/res/values/config.xml b/res/values/config.xml
index 42ab4b98a..9ab1e96e7 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -43,4 +43,10 @@
     <integer name="gatt_low_power_max_interval">100</integer>
 
     <bool name="headset_client_initial_audio_route_allowed">true</bool>
+
+    <!-- For AVRCP absolute volume feature. If the threshold is non-zero,
+         restrict the initial volume to the threshold.
+         Valid value is 1-14, and recommended value is 8 -->
+    <integer name="a2dp_absolute_volume_initial_threshold">8</integer>
+
 </resources>
-- 
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