AVC : prevent ear-shock sound

[Model] Renaissance
[BinType] AP
[Customer] ALL

[Issue#] N/A
[Request] N/A
[Occurrence Version] N/A

[Problem] N/A
[Cause & Measure] N/A
[Checking Method] N/A

[Team] Bluetooth
[Developer] Sangki Park
[Solution company] Samsung
[Change Type] Specification change

Change-Id: If6adfdeab296821d4e6409685fcdbb0c73bebbcc

diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
index 3dd4c12..68aba25 100644 (file)
--- a/profiles/audio/transport.c
+++ b/profiles/audio/transport.c
@@ -856,14 +856,42 @@ static void source_state_changed(struct btd_service *service,
                transport_update_playing(transport, FALSE);
 }
 
-static int media_transport_init_source(struct media_transport *transport)
-{
-       struct btd_service *service;
-       struct a2dp_transport *a2dp;
 #ifdef TIZEN_FEATURE_BLUEZ_MODIFY
+#define AVC_MAX_VOLUME  127
+#define AVC_INITIAL_MAX_VOLUME  (AVC_MAX_VOLUME * 3 / 5 + 1)
+#define DEVICE_MAX_VOLUME  150
+#define DEVICE_INITIAL_MAX_VOLUME  (DEVICE_MAX_VOLUME * 3 / 5)
+
+static void media_transport_init_volume(struct media_transport *transport) {
+       struct a2dp_transport *a2dp = transport->data;
        uint8_t vol = 0;
        int ret;
+
+       ret = avrcp_get_target_volume(transport->device, &vol);
+
+       if (ret)        /* not support AVC */
+               return;
+
+       if (vol > AVC_MAX_VOLUME)
+               return;
+
+       a2dp->volume = vol;
+
+       /* Ear-shock issue */
+       if (a2dp->volume > AVC_INITIAL_MAX_VOLUME) {
+               a2dp->volume = AVC_INITIAL_MAX_VOLUME;
+               avrcp_set_volume(transport->device, AVC_INITIAL_MAX_VOLUME, 0x00);
+       }
+
+       DBG("Get AVC volume from controller : volume [%d])", a2dp->volume);
+}
 #endif
+
+static int media_transport_init_source(struct media_transport *transport)
+{
+       struct btd_service *service;
+       struct a2dp_transport *a2dp;
+
        service = btd_device_get_service(transport->device, A2DP_SINK_UUID);
        if (service == NULL)
                return -EINVAL;
@@ -876,18 +904,12 @@ static int media_transport_init_source(struct media_transport *transport)
        transport->data = a2dp;
        transport->destroy = destroy_a2dp;
 
-#ifdef TIZEN_FEATURE_BLUEZ_MODIFY
-       ret = avrcp_get_target_volume(transport->device, &vol);
-
-       if (!ret)       /* error none */
-               a2dp->volume = vol;
-       else
                a2dp->volume = -1;
 
-       DBG("Check AVRCP volume and update it (ret [%d] vol [%d])", ret, vol);
-#else
-       a2dp->volume = -1;
+#ifdef TIZEN_FEATURE_BLUEZ_MODIFY
+       media_transport_init_volume(transport);
 #endif
+
        transport->sink_watch = sink_add_state_cb(service, sink_state_changed,
                                                                transport);