auto import from //depot/cupcake/@135843
diff --git a/libs/audioflinger/AudioHardwareGeneric.cpp b/libs/audioflinger/AudioHardwareGeneric.cpp
new file mode 100644
index 0000000..62beada
--- /dev/null
+++ b/libs/audioflinger/AudioHardwareGeneric.cpp
@@ -0,0 +1,313 @@
+/*
+**
+** 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.
+*/
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sched.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#define LOG_TAG "AudioHardware"
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include "AudioHardwareGeneric.h"
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+static char const * const kAudioDeviceName = "/dev/eac";
+
+// ----------------------------------------------------------------------------
+
+AudioHardwareGeneric::AudioHardwareGeneric()
+ : mOutput(0), mInput(0), mFd(-1), mMicMute(false)
+{
+ mFd = ::open(kAudioDeviceName, O_RDWR);
+}
+
+AudioHardwareGeneric::~AudioHardwareGeneric()
+{
+ if (mFd >= 0) ::close(mFd);
+ delete mOutput;
+ delete mInput;
+}
+
+status_t AudioHardwareGeneric::initCheck()
+{
+ if (mFd >= 0) {
+ if (::access(kAudioDeviceName, O_RDWR) == NO_ERROR)
+ return NO_ERROR;
+ }
+ return NO_INIT;
+}
+
+AudioStreamOut* AudioHardwareGeneric::openOutputStream(
+ int format, int channelCount, uint32_t sampleRate, status_t *status)
+{
+ AutoMutex lock(mLock);
+
+ // only one output stream allowed
+ if (mOutput) {
+ if (status) {
+ *status = INVALID_OPERATION;
+ }
+ return 0;
+ }
+
+ // create new output stream
+ AudioStreamOutGeneric* out = new AudioStreamOutGeneric();
+ status_t lStatus = out->set(this, mFd, format, channelCount, sampleRate);
+ if (status) {
+ *status = lStatus;
+ }
+ if (lStatus == NO_ERROR) {
+ mOutput = out;
+ } else {
+ delete out;
+ }
+ return mOutput;
+}
+
+void AudioHardwareGeneric::closeOutputStream(AudioStreamOutGeneric* out) {
+ if (out == mOutput) mOutput = 0;
+}
+
+AudioStreamIn* AudioHardwareGeneric::openInputStream(
+ int format, int channelCount, uint32_t sampleRate, status_t *status,
+ AudioSystem::audio_in_acoustics acoustics)
+{
+ AutoMutex lock(mLock);
+
+ // only one input stream allowed
+ if (mInput) {
+ if (status) {
+ *status = INVALID_OPERATION;
+ }
+ return 0;
+ }
+
+ // create new output stream
+ AudioStreamInGeneric* in = new AudioStreamInGeneric();
+ status_t lStatus = in->set(this, mFd, format, channelCount, sampleRate, acoustics);
+ if (status) {
+ *status = lStatus;
+ }
+ if (lStatus == NO_ERROR) {
+ mInput = in;
+ } else {
+ delete in;
+ }
+ return mInput;
+}
+
+void AudioHardwareGeneric::closeInputStream(AudioStreamInGeneric* in) {
+ if (in == mInput) mInput = 0;
+}
+
+status_t AudioHardwareGeneric::setVoiceVolume(float v)
+{
+ // Implement: set voice volume
+ return NO_ERROR;
+}
+
+status_t AudioHardwareGeneric::setMasterVolume(float v)
+{
+ // Implement: set master volume
+ // return error - software mixer will handle it
+ return INVALID_OPERATION;
+}
+
+status_t AudioHardwareGeneric::setMicMute(bool state)
+{
+ mMicMute = state;
+ return NO_ERROR;
+}
+
+status_t AudioHardwareGeneric::getMicMute(bool* state)
+{
+ *state = mMicMute;
+ return NO_ERROR;
+}
+
+status_t AudioHardwareGeneric::dumpInternals(int fd, const Vector<String16>& args)
+{
+ const size_t SIZE = 256;
+ char buffer[SIZE];
+ String8 result;
+ result.append("AudioHardwareGeneric::dumpInternals\n");
+ snprintf(buffer, SIZE, "\tmFd: %d mMicMute: %s\n", mFd, mMicMute? "true": "false");
+ result.append(buffer);
+ ::write(fd, result.string(), result.size());
+ return NO_ERROR;
+}
+
+status_t AudioHardwareGeneric::dump(int fd, const Vector<String16>& args)
+{
+ dumpInternals(fd, args);
+ if (mInput) {
+ mInput->dump(fd, args);
+ }
+ if (mOutput) {
+ mOutput->dump(fd, args);
+ }
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+status_t AudioStreamOutGeneric::set(
+ AudioHardwareGeneric *hw,
+ int fd,
+ int format,
+ int channels,
+ uint32_t rate)
+{
+ // fix up defaults
+ if (format == 0) format = AudioSystem::PCM_16_BIT;
+ if (channels == 0) channels = channelCount();
+ if (rate == 0) rate = sampleRate();
+
+ // check values
+ if ((format != AudioSystem::PCM_16_BIT) ||
+ (channels != channelCount()) ||
+ (rate != sampleRate()))
+ return BAD_VALUE;
+
+ mAudioHardware = hw;
+ mFd = fd;
+ return NO_ERROR;
+}
+
+AudioStreamOutGeneric::~AudioStreamOutGeneric()
+{
+ if (mAudioHardware)
+ mAudioHardware->closeOutputStream(this);
+}
+
+ssize_t AudioStreamOutGeneric::write(const void* buffer, size_t bytes)
+{
+ Mutex::Autolock _l(mLock);
+ return ssize_t(::write(mFd, buffer, bytes));
+}
+
+status_t AudioStreamOutGeneric::standby()
+{
+ // Implement: audio hardware to standby mode
+ return NO_ERROR;
+}
+
+status_t AudioStreamOutGeneric::dump(int fd, const Vector<String16>& args)
+{
+ const size_t SIZE = 256;
+ char buffer[SIZE];
+ String8 result;
+ snprintf(buffer, SIZE, "AudioStreamOutGeneric::dump\n");
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tchannel count: %d\n", channelCount());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tformat: %d\n", format());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tmAudioHardware: %p\n", mAudioHardware);
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tmFd: %d\n", mFd);
+ result.append(buffer);
+ ::write(fd, result.string(), result.size());
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+// record functions
+status_t AudioStreamInGeneric::set(
+ AudioHardwareGeneric *hw,
+ int fd,
+ int format,
+ int channels,
+ uint32_t rate,
+ AudioSystem::audio_in_acoustics acoustics)
+{
+ // FIXME: remove logging
+ LOGD("AudioStreamInGeneric::set(%p, %d, %d, %d, %u)", hw, fd, format, channels, rate);
+ // check values
+ if ((format != AudioSystem::PCM_16_BIT) ||
+ (channels != channelCount()) ||
+ (rate != sampleRate())) {
+ LOGE("Error opening input channel");
+ return BAD_VALUE;
+ }
+
+ mAudioHardware = hw;
+ mFd = fd;
+ return NO_ERROR;
+}
+
+AudioStreamInGeneric::~AudioStreamInGeneric()
+{
+ // FIXME: remove logging
+ LOGD("AudioStreamInGeneric destructor");
+ if (mAudioHardware)
+ mAudioHardware->closeInputStream(this);
+}
+
+ssize_t AudioStreamInGeneric::read(void* buffer, ssize_t bytes)
+{
+ // FIXME: remove logging
+ LOGD("AudioStreamInGeneric::read(%p, %d) from fd %d", buffer, bytes, mFd);
+ AutoMutex lock(mLock);
+ if (mFd < 0) {
+ LOGE("Attempt to read from unopened device");
+ return NO_INIT;
+ }
+ return ::read(mFd, buffer, bytes);
+}
+
+status_t AudioStreamInGeneric::dump(int fd, const Vector<String16>& args)
+{
+ const size_t SIZE = 256;
+ char buffer[SIZE];
+ String8 result;
+ snprintf(buffer, SIZE, "AudioStreamInGeneric::dump\n");
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tchannel count: %d\n", channelCount());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tformat: %d\n", format());
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tmAudioHardware: %p\n", mAudioHardware);
+ result.append(buffer);
+ snprintf(buffer, SIZE, "\tmFd: %d\n", mFd);
+ result.append(buffer);
+ ::write(fd, result.string(), result.size());
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android