From 4182c4e2a07e2441fcd5c22eaff0ddfe7f826f61 Mon Sep 17 00:00:00 2001
From: Glenn Kasten <gkasten@google.com>
Date: Mon, 15 Jul 2013 14:45:07 -0700
Subject: Use AudioSystem::setLowRamDevice() to configure memory

Bug: 9798886
Change-Id: I9321e3f369f1ed9429ae222e3926ebdeb012b8b0
---
 media/libmedia/AudioSystem.cpp   |  7 +++++++
 media/libmedia/IAudioFlinger.cpp | 16 ++++++++++++++++
 2 files changed, 23 insertions(+)

(limited to 'media/libmedia')

diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 6b9b3be..0d59af0 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -772,6 +772,13 @@ size_t AudioSystem::getPrimaryOutputFrameCount()
     return af->getPrimaryOutputFrameCount();
 }
 
+status_t AudioSystem::setLowRamDevice(bool isLowRamDevice)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setLowRamDevice(isLowRamDevice);
+}
+
 void AudioSystem::clearAudioConfigCache()
 {
     Mutex::Autolock _l(gLock);
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index 6bb7df6..2e2c0cc 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -73,6 +73,7 @@ enum {
     LOAD_HW_MODULE,
     GET_PRIMARY_OUTPUT_SAMPLING_RATE,
     GET_PRIMARY_OUTPUT_FRAME_COUNT,
+    SET_LOW_RAM_DEVICE,
 };
 
 class BpAudioFlinger : public BpInterface<IAudioFlinger>
@@ -698,6 +699,15 @@ public:
         return reply.readInt32();
     }
 
+    virtual status_t setLowRamDevice(bool isLowRamDevice)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int) isLowRamDevice);
+        remote()->transact(SET_LOW_RAM_DEVICE, data, &reply);
+        return reply.readInt32();
+    }
+
 };
 
 IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
@@ -1059,6 +1069,12 @@ status_t BnAudioFlinger::onTransact(
             reply->writeInt32(getPrimaryOutputFrameCount());
             return NO_ERROR;
         } break;
+        case SET_LOW_RAM_DEVICE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            bool isLowRamDevice = data.readInt32() != 0;
+            reply->writeInt32(setLowRamDevice(isLowRamDevice));
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
-- 
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