audio policy: manage stream volume per device
Improve volume management by keeping track of volume for each type
of device independently.
Added functions at the audio policy interface to set and get stream volume
for a particular device.
Change-Id: Ic8899e82e48193cb65b3673e9d20383efed943b5
diff --git a/modules/audio/audio_policy.c b/modules/audio/audio_policy.c
index 3313d48..71c8f92 100644
--- a/modules/audio/audio_policy.c
+++ b/modules/audio/audio_policy.c
@@ -163,6 +163,22 @@
return -ENOSYS;
}
+static int ap_set_stream_volume_index_for_device(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index,
+ audio_devices_t device)
+{
+ return -ENOSYS;
+}
+
+static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int *index,
+ audio_devices_t device)
+{
+ return -ENOSYS;
+}
+
static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
audio_stream_type_t stream)
{
@@ -250,6 +266,8 @@
dap->policy.init_stream_volume = ap_init_stream_volume;
dap->policy.set_stream_volume_index = ap_set_stream_volume_index;
dap->policy.get_stream_volume_index = ap_get_stream_volume_index;
+ dap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device;
+ dap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device;
dap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
dap->policy.get_devices_for_stream = ap_get_devices_for_stream;
dap->policy.get_output_for_effect = ap_get_output_for_effect;