From be81272bafb948278e5e5739ef975cd7bbf0ee0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@gmail.com>
Date: Tue, 17 Apr 2012 14:32:35 +0200
Subject: [PATCH 501/509] audio: add VOICE_VOLUME ctl

Add a new PCM control operation to update the stream volume on the
audio backend.  The argument given is a SWVoiceOut/SWVoiceIn.

v4:
- verified other backends didn't fail/assert on this new control
  they randomly return 0 or -1, but we ignore return value.

Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
---
 audio/audio.c     |   12 ++++++++++++
 audio/audio_int.h |    1 +
 2 files changed, 13 insertions(+)

diff --git a/audio/audio.c b/audio/audio.c
index 50d0d71..2ae9b2f 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -2050,17 +2050,29 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
 void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
 {
     if (sw) {
+        HWVoiceOut *hw = sw->hw;
+
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
+
+        if (hw->pcm_ops->ctl_out) {
+            hw->pcm_ops->ctl_out (hw, VOICE_VOLUME, sw);
+        }
     }
 }
 
 void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
 {
     if (sw) {
+        HWVoiceIn *hw = sw->hw;
+
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
+
+        if (hw->pcm_ops->ctl_in) {
+            hw->pcm_ops->ctl_in (hw, VOICE_VOLUME, sw);
+        }
     }
 }
diff --git a/audio/audio_int.h b/audio/audio_int.h
index 2003f8b..117f95e 100644
--- a/audio/audio_int.h
+++ b/audio/audio_int.h
@@ -231,6 +231,7 @@ void audio_run (const char *msg);
 
 #define VOICE_ENABLE 1
 #define VOICE_DISABLE 2
+#define VOICE_VOLUME 3
 
 static inline int audio_ring_dist (int dst, int src, int len)
 {
-- 
1.7.10