commit db1b4f9cc919e30a4c47699b01d593a81f6f6a1e
author Md Mansoor Ahmed <mansoor@codeaurora.org> Thu Jan 25 18:56:31 2018 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Mon Jan 29 21:00:33 2018 -0800
tree 733e3532ef183227d4c665ba424fdb322ffa3e14
parent cc8d7f658a6e66e8cb660b2c450b60cf3b707107

hal: Update keep_alive to support silence playback on non-hdmi devices

Keep_alive can now handle silence playback on multiple concurrent
devices such as primary output devices as well as HDMI

Change-Id: I08cbec51394d23255e1a61928e0b2cad552b2ac0
Signed-off-by: Md Mansoor Ahmed <mansoor@codeaurora.org>

hal/audio_extn/passthru.c

diff --git a/hal/audio_extn/passthru.c b/hal/audio_extn/passthru.c
old mode 100644
new mode 100755
index f8974c7..99949fc
--- a/hal/audio_extn/passthru.c
+++ b/hal/audio_extn/passthru.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
+* Copyright (c) 2014-2018, 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
@@ -309,8 +309,8 @@
     }
 
     if (out->devices & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
-        ALOGI("passthru on aux digital, start keep alive");
-        audio_extn_keep_alive_start();
+        ALOGD("%s: passthru on aux digital, start keep alive", __func__);
+        audio_extn_keep_alive_start(KEEP_ALIVE_OUT_HDMI);
     }
 }
 
@@ -321,8 +321,30 @@
 }
 
 int audio_extn_passthru_set_parameters(struct audio_device *adev __unused,
-                                       struct str_parms *parms __unused)
+                                       struct str_parms *parms)
 {
+    char value[32];
+    int ret;
+    ret = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_CONNECT, value, sizeof(value));
+    if (ret >= 0) {
+        int val = atoi(value);
+        if (val & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
+            if (!audio_extn_passthru_is_active()) {
+                ALOGV("%s: start keep alive on aux digital", __func__);
+                audio_extn_keep_alive_start(KEEP_ALIVE_OUT_HDMI);
+            }
+        }
+    }
+
+    ret = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_DISCONNECT, value,
+                            sizeof(value));
+    if (ret >= 0) {
+        int val = atoi(value);
+        if (val & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
+            ALOGV("%s: stop keep_alive on aux digital on device", __func__);
+            audio_extn_keep_alive_stop(KEEP_ALIVE_OUT_HDMI);
+        }
+    }
     return 0;
 }