commit 6ccde10fdc6591e5cd21ed32c2b5817aaeb1a208
author SathishKumar Mani <smani@codeaurora.org> Wed Sep 26 20:23:34 2012 -0700
committer Iliyan Malchev <malchev@google.com> Fri Sep 28 09:29:54 2012 -0700
tree 98e3d6b1c5b90d86e78b93d1b39df1f6ca1e9472
parent 80baa42f653a8ea57847d6c2543df8400349433f

alsa_sound: fix for SIP call mute issue.

-Mute VOIP through audio path is not supported by kernel,
 so calling setVoipMicMute() to disable ""Voip Tx Mute"" fails
-Mute VOIP by cleanning buffers read if setMicMute is set
-Remove mVoipMicMute and use mMicMute for voice and VOIP

Bug: 7213748
Change-Id: I62be8456447425cbd1521083782802effcb6d326
Signed-off-by: Iliyan Malchev <malchev@google.com>

alsa_sound/AudioStreamInALSA.cpp

diff --git a/alsa_sound/AudioStreamInALSA.cpp b/alsa_sound/AudioStreamInALSA.cpp
index 30de979..031d477 100644
--- a/alsa_sound/AudioStreamInALSA.cpp
+++ b/alsa_sound/AudioStreamInALSA.cpp
@@ -445,6 +445,10 @@
             else {
                 read += static_cast<ssize_t>((period_size));
                 read_pending -= period_size;
+                //Set mute by cleanning buffers read
+                if (mParent->mMicMute) {
+                    memset(buffer, 0, period_size);
+                }
                 buffer = ((uint8_t *)buffer) + period_size;
             }
 
@@ -491,7 +495,6 @@
                return NO_ERROR;
         }
         mParent->mVoipStreamCount = 0;
-        mParent->mVoipMicMute = 0;
 #ifdef QCOM_USBAUDIO_ENABLED
     } else {
         ALOGD("Deregistering REC bit, musbRecordingState:%d", mParent->musbRecordingState);