legacy: move legacy audio code from frameworks/base here

Change-Id: Ic5da0130af44354dffdf85c30cd99f57c6ee163c
Signed-off-by: Dima Zavin <dima@android.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/audio/A2dpAudioInterface.h b/audio/A2dpAudioInterface.h
new file mode 100644
index 0000000..dbe2c6a
--- /dev/null
+++ b/audio/A2dpAudioInterface.h
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A2DP_AUDIO_HARDWARE_H
+#define A2DP_AUDIO_HARDWARE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/threads.h>
+
+#include <hardware_legacy/AudioHardwareBase.h>
+
+
+namespace android {
+
+class A2dpAudioInterface : public AudioHardwareBase
+{
+    class A2dpAudioStreamOut;
+
+public:
+                        A2dpAudioInterface(AudioHardwareInterface* hw);
+    virtual             ~A2dpAudioInterface();
+    virtual status_t    initCheck();
+
+    virtual status_t    setVoiceVolume(float volume);
+    virtual status_t    setMasterVolume(float volume);
+
+    virtual status_t    setMode(int mode);
+
+    // mic mute
+    virtual status_t    setMicMute(bool state);
+    virtual status_t    getMicMute(bool* state);
+
+    virtual status_t    setParameters(const String8& keyValuePairs);
+    virtual String8     getParameters(const String8& keys);
+
+    virtual size_t      getInputBufferSize(uint32_t sampleRate, int format, int channelCount);
+
+    // create I/O streams
+    virtual AudioStreamOut* openOutputStream(
+                                uint32_t devices,
+                                int *format=0,
+                                uint32_t *channels=0,
+                                uint32_t *sampleRate=0,
+                                status_t *status=0);
+    virtual    void        closeOutputStream(AudioStreamOut* out);
+
+    virtual AudioStreamIn* openInputStream(
+                                uint32_t devices,
+                                int *format,
+                                uint32_t *channels,
+                                uint32_t *sampleRate,
+                                status_t *status,
+                                AudioSystem::audio_in_acoustics acoustics);
+    virtual    void        closeInputStream(AudioStreamIn* in);
+//    static AudioHardwareInterface* createA2dpInterface();
+
+protected:
+    virtual status_t    dump(int fd, const Vector<String16>& args);
+
+private:
+    class A2dpAudioStreamOut : public AudioStreamOut {
+    public:
+                            A2dpAudioStreamOut();
+        virtual             ~A2dpAudioStreamOut();
+                status_t    set(uint32_t device,
+                                int *pFormat,
+                                uint32_t *pChannels,
+                                uint32_t *pRate);
+        virtual uint32_t    sampleRate() const { return 44100; }
+        // SBC codec wants a multiple of 512
+        virtual size_t      bufferSize() const { return 512 * 20; }
+        virtual uint32_t    channels() const { return AudioSystem::CHANNEL_OUT_STEREO; }
+        virtual int         format() const { return AudioSystem::PCM_16_BIT; }
+        virtual uint32_t    latency() const { return ((1000*bufferSize())/frameSize())/sampleRate() + 200; }
+        virtual status_t    setVolume(float left, float right) { return INVALID_OPERATION; }
+        virtual ssize_t     write(const void* buffer, size_t bytes);
+                status_t    standby();
+        virtual status_t    dump(int fd, const Vector<String16>& args);
+        virtual status_t    setParameters(const String8& keyValuePairs);
+        virtual String8     getParameters(const String8& keys);
+        virtual status_t    getRenderPosition(uint32_t *dspFrames);
+
+    private:
+        friend class A2dpAudioInterface;
+                status_t    init();
+                status_t    close();
+                status_t    close_l();
+                status_t    setAddress(const char* address);
+                status_t    setBluetoothEnabled(bool enabled);
+                status_t    setSuspended(bool onOff);
+                status_t    standby_l();
+
+    private:
+                int         mFd;
+                bool        mStandby;
+                int         mStartCount;
+                int         mRetryCount;
+                char        mA2dpAddress[20];
+                void*       mData;
+                Mutex       mLock;
+                bool        mBluetoothEnabled;
+                uint32_t    mDevice;
+                bool        mClosing;
+                bool        mSuspended;
+                nsecs_t     mLastWriteTime;
+                uint32_t    mBufferDurationUs;
+    };
+
+    friend class A2dpAudioStreamOut;
+
+    A2dpAudioStreamOut*     mOutput;
+    AudioHardwareInterface  *mHardwareInterface;
+    char        mA2dpAddress[20];
+    bool        mBluetoothEnabled;
+    bool        mSuspended;
+};
+
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // A2DP_AUDIO_HARDWARE_H