commit 59c51075620e566f13e789e71b8e80aadae38be7
author Surendar Karka <sukark@codeaurora.org> Wed Dec 13 11:25:57 2017 +0530
committer Surendar karka <sukark@codeaurora.org> Thu Feb 01 13:22:36 2018 +0530
tree 6f3329c5c7f82ae08779bb5d932b3d84e3b7ae62
parent 82dd9b22b2afdd634fecdf5bfbcfc945487c9622

hal: start keep alive session to feed EC with silence data

FFV EC reference signal is fed from AFE RX port.
Start the keep alive session to write silence data to
RX port and feed the silence data to FFV EC.

Change-Id: I38b0396ef853493c9a176444dc803744be1c45bb
Signed-off-by: Surendar karka <sukark@codeaurora.org>

hal/audio_extn/ffv.c

diff --git a/hal/audio_extn/ffv.c b/hal/audio_extn/ffv.c
index 50b776b..511179a 100644
--- a/hal/audio_extn/ffv.c
+++ b/hal/audio_extn/ffv.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -47,6 +47,7 @@
 #include <sys/resource.h>
 
 #include "audio_hw.h"
+#include "audio_extn.h"
 #include "platform.h"
 #include "platform_api.h"
 
@@ -497,7 +498,9 @@
     }
 
     ffvmod.in = in;
-
+#ifdef RUN_KEEP_ALIVE_IN_ARM_FFV
+    audio_extn_keep_alive_start(KEEP_ALIVE_OUT_PRIMARY);
+#endif
 #ifdef FFV_PCM_DUMP
     if (!ffvmod.fp_input) {
         ALOGD("%s: Opening input dump file \n", __func__);
@@ -547,7 +550,9 @@
 
     if (ffvmod.buffers_allocated)
         deallocate_buffers();
-
+#ifdef RUN_KEEP_ALIVE_IN_ARM_FFV
+    audio_extn_keep_alive_stop(KEEP_ALIVE_OUT_PRIMARY);
+#endif
     ffvmod.handle = NULL;
     ffvmod.in = NULL;
     ALOGV("%s: exit", __func__);