1 files changed, 135 insertions, 0 deletions
diff --git a/libs/audioflinger/AudioHardwareGeneric.h b/libs/audioflinger/AudioHardwareGeneric.h
new file mode 100644
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+++ b/libs/audioflinger/AudioHardwareGeneric.h
@@ -0,0 +1,135 @@
+/*
+**
+** Copyright 2007, 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 ANDROID_AUDIO_HARDWARE_GENERIC_H
+#define ANDROID_AUDIO_HARDWARE_GENERIC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/threads.h>
+
+#include <hardware/AudioHardwareInterface.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioHardwareGeneric;
+
+class AudioStreamOutGeneric : public AudioStreamOut {
+public:
+                        AudioStreamOutGeneric() : mAudioHardware(0), mFd(-1) {}
+    virtual             ~AudioStreamOutGeneric();
+
+    virtual status_t    set(
+            AudioHardwareGeneric *hw,
+            int mFd,
+            int format,
+            int channelCount,
+            uint32_t sampleRate);
+
+    virtual uint32_t    sampleRate() const { return 44100; }
+    virtual size_t      bufferSize() const { return 4096; }
+    virtual int         channelCount() const { return 2; }
+    virtual int         format() const { return AudioSystem::PCM_16_BIT; }
+    virtual status_t    setVolume(float volume) { return INVALID_OPERATION; }
+    virtual ssize_t     write(const void* buffer, size_t bytes);
+    virtual status_t    dump(int fd, const Vector<String16>& args);
+
+private:
+    AudioHardwareGeneric *mAudioHardware;
+    Mutex   mLock;
+    int     mFd;
+};
+
+class AudioStreamInGeneric : public AudioStreamIn {
+public:
+                        AudioStreamInGeneric() : mAudioHardware(0), mFd(-1) {}
+    virtual             ~AudioStreamInGeneric();
+
+    virtual status_t    set(
+            AudioHardwareGeneric *hw,
+            int mFd,
+            int format,
+            int channelCount,
+            uint32_t sampleRate);
+
+    uint32_t    sampleRate() const { return 8000; }
+    virtual size_t      bufferSize() const { return 320; }
+    virtual int         channelCount() const { return 1; }
+    virtual int         format() const { return AudioSystem::PCM_16_BIT; }
+    virtual status_t    setGain(float gain) { return INVALID_OPERATION; }
+    virtual ssize_t     read(void* buffer, ssize_t bytes);
+    virtual status_t    dump(int fd, const Vector<String16>& args);
+
+private:
+    AudioHardwareGeneric *mAudioHardware;
+    Mutex   mLock;
+    int     mFd;
+};
+
+
+class AudioHardwareGeneric : public  AudioHardwareInterface
+{
+public:
+                        AudioHardwareGeneric();
+    virtual             ~AudioHardwareGeneric();
+    virtual status_t    initCheck();
+    virtual status_t    standby();
+    virtual status_t    setVoiceVolume(float volume);
+    virtual status_t    setMasterVolume(float volume);
+
+    // mic mute
+    virtual status_t    setMicMute(bool state);
+    virtual status_t    getMicMute(bool* state);
+
+    virtual status_t    setParameter(const char* key, const char* value)
+            { return NO_ERROR; }
+
+    // create I/O streams
+    virtual AudioStreamOut* openOutputStream(
+            int format=0,
+            int channelCount=0,
+            uint32_t sampleRate=0);
+
+    virtual AudioStreamIn* openInputStream(
+            int format,
+            int channelCount,
+            uint32_t sampleRate);
+
+            void            closeOutputStream(AudioStreamOutGeneric* out);
+            void            closeInputStream(AudioStreamInGeneric* in);
+protected:
+    virtual status_t        doRouting() { return NO_ERROR; }
+    virtual status_t        dump(int fd, const Vector<String16>& args);
+
+private:
+    status_t                dumpInternals(int fd, const Vector<String16>& args);
+    
+    Mutex                   mLock;
+    AudioStreamOutGeneric   *mOutput;
+    AudioStreamInGeneric    *mInput;
+    int                     mFd;
+    bool                    mMicMute;
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_AUDIO_HARDWARE_GENERIC_H