418 lines
11 KiB
C++
418 lines
11 KiB
C++
/*
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**
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** Copyright 2007, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sched.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#define LOG_TAG "AudioHardware"
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#include <utils/Log.h>
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#include <utils/String8.h>
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#include "AudioHardwareGeneric.h"
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#include <media/AudioRecord.h>
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namespace android {
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// ----------------------------------------------------------------------------
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static char const * const kAudioDeviceName = "/dev/eac";
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// ----------------------------------------------------------------------------
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AudioHardwareGeneric::AudioHardwareGeneric()
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: mOutput(0), mInput(0), mFd(-1), mMicMute(false)
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{
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mFd = ::open(kAudioDeviceName, O_RDWR);
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}
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AudioHardwareGeneric::~AudioHardwareGeneric()
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{
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if (mFd >= 0) ::close(mFd);
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closeOutputStream((AudioStreamOut *)mOutput);
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closeInputStream((AudioStreamIn *)mInput);
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}
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status_t AudioHardwareGeneric::initCheck()
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{
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if (mFd >= 0) {
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if (::access(kAudioDeviceName, O_RDWR) == NO_ERROR)
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return NO_ERROR;
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}
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return NO_INIT;
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}
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AudioStreamOut* AudioHardwareGeneric::openOutputStream(
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uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate, status_t *status)
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{
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AutoMutex lock(mLock);
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// only one output stream allowed
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if (mOutput) {
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if (status) {
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*status = INVALID_OPERATION;
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}
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return 0;
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}
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// create new output stream
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AudioStreamOutGeneric* out = new AudioStreamOutGeneric();
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status_t lStatus = out->set(this, mFd, devices, format, channels, sampleRate);
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if (status) {
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*status = lStatus;
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}
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if (lStatus == NO_ERROR) {
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mOutput = out;
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} else {
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delete out;
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}
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return mOutput;
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}
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void AudioHardwareGeneric::closeOutputStream(AudioStreamOut* out) {
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if (mOutput && out == mOutput) {
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delete mOutput;
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mOutput = 0;
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}
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}
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AudioStreamIn* AudioHardwareGeneric::openInputStream(
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uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate,
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status_t *status, AudioSystem::audio_in_acoustics acoustics)
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{
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// check for valid input source
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if (!AudioSystem::isInputDevice((AudioSystem::audio_devices)devices)) {
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return 0;
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}
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AutoMutex lock(mLock);
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// only one input stream allowed
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if (mInput) {
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if (status) {
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*status = INVALID_OPERATION;
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}
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return 0;
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}
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// create new output stream
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AudioStreamInGeneric* in = new AudioStreamInGeneric();
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status_t lStatus = in->set(this, mFd, devices, format, channels, sampleRate, acoustics);
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if (status) {
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*status = lStatus;
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}
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if (lStatus == NO_ERROR) {
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mInput = in;
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} else {
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delete in;
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}
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return mInput;
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}
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void AudioHardwareGeneric::closeInputStream(AudioStreamIn* in) {
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if (mInput && in == mInput) {
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delete mInput;
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mInput = 0;
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}
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}
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status_t AudioHardwareGeneric::setVoiceVolume(float v)
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{
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// Implement: set voice volume
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return NO_ERROR;
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}
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status_t AudioHardwareGeneric::setFmVolume(float v)
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{
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// Implement: set fm volume
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return NO_ERROR;
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}
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status_t AudioHardwareGeneric::setMasterVolume(float v)
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{
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// Implement: set master volume
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// return error - software mixer will handle it
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return INVALID_OPERATION;
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}
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status_t AudioHardwareGeneric::setMicMute(bool state)
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{
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mMicMute = state;
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return NO_ERROR;
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}
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status_t AudioHardwareGeneric::getMicMute(bool* state)
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{
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*state = mMicMute;
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return NO_ERROR;
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}
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status_t AudioHardwareGeneric::dumpInternals(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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result.append("AudioHardwareGeneric::dumpInternals\n");
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snprintf(buffer, SIZE, "\tmFd: %d mMicMute: %s\n", mFd, mMicMute? "true": "false");
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result.append(buffer);
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::write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t AudioHardwareGeneric::dump(int fd, const Vector<String16>& args)
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{
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dumpInternals(fd, args);
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if (mInput) {
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mInput->dump(fd, args);
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}
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if (mOutput) {
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mOutput->dump(fd, args);
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}
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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status_t AudioStreamOutGeneric::set(
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AudioHardwareGeneric *hw,
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int fd,
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uint32_t devices,
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int *pFormat,
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uint32_t *pChannels,
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uint32_t *pRate)
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{
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int lFormat = pFormat ? *pFormat : 0;
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uint32_t lChannels = pChannels ? *pChannels : 0;
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uint32_t lRate = pRate ? *pRate : 0;
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// fix up defaults
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if (lFormat == 0) lFormat = format();
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if (lChannels == 0) lChannels = channels();
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if (lRate == 0) lRate = sampleRate();
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// check values
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if ((lFormat != format()) ||
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(lChannels != channels()) ||
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(lRate != sampleRate())) {
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if (pFormat) *pFormat = format();
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if (pChannels) *pChannels = channels();
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if (pRate) *pRate = sampleRate();
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return BAD_VALUE;
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}
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if (pFormat) *pFormat = lFormat;
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if (pChannels) *pChannels = lChannels;
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if (pRate) *pRate = lRate;
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mAudioHardware = hw;
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mFd = fd;
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mDevice = devices;
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return NO_ERROR;
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}
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AudioStreamOutGeneric::~AudioStreamOutGeneric()
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{
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}
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ssize_t AudioStreamOutGeneric::write(const void* buffer, size_t bytes)
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{
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Mutex::Autolock _l(mLock);
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return ssize_t(::write(mFd, buffer, bytes));
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}
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status_t AudioStreamOutGeneric::standby()
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{
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// Implement: audio hardware to standby mode
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return NO_ERROR;
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}
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status_t AudioStreamOutGeneric::dump(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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snprintf(buffer, SIZE, "AudioStreamOutGeneric::dump\n");
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result.append(buffer);
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snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tchannels: %d\n", channels());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tformat: %d\n", format());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tdevice: %d\n", mDevice);
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result.append(buffer);
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snprintf(buffer, SIZE, "\tmAudioHardware: %p\n", mAudioHardware);
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result.append(buffer);
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snprintf(buffer, SIZE, "\tmFd: %d\n", mFd);
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result.append(buffer);
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::write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t AudioStreamOutGeneric::setParameters(const String8& keyValuePairs)
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{
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AudioParameter param = AudioParameter(keyValuePairs);
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String8 key = String8(AudioParameter::keyRouting);
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status_t status = NO_ERROR;
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int device;
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LOGV("setParameters() %s", keyValuePairs.string());
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if (param.getInt(key, device) == NO_ERROR) {
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mDevice = device;
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param.remove(key);
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}
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if (param.size()) {
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status = BAD_VALUE;
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}
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return status;
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}
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String8 AudioStreamOutGeneric::getParameters(const String8& keys)
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{
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AudioParameter param = AudioParameter(keys);
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String8 value;
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String8 key = String8(AudioParameter::keyRouting);
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if (param.get(key, value) == NO_ERROR) {
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param.addInt(key, (int)mDevice);
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}
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LOGV("getParameters() %s", param.toString().string());
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return param.toString();
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}
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status_t AudioStreamOutGeneric::getRenderPosition(uint32_t *dspFrames)
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{
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return INVALID_OPERATION;
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}
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// ----------------------------------------------------------------------------
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// record functions
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status_t AudioStreamInGeneric::set(
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AudioHardwareGeneric *hw,
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int fd,
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uint32_t devices,
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int *pFormat,
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uint32_t *pChannels,
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uint32_t *pRate,
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AudioSystem::audio_in_acoustics acoustics)
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{
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if (pFormat == 0 || pChannels == 0 || pRate == 0) return BAD_VALUE;
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LOGV("AudioStreamInGeneric::set(%p, %d, %d, %d, %u)", hw, fd, *pFormat, *pChannels, *pRate);
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// check values
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if ((*pFormat != format()) ||
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(*pChannels != channels()) ||
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(*pRate != sampleRate())) {
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LOGE("Error opening input channel");
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*pFormat = format();
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*pChannels = channels();
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*pRate = sampleRate();
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return BAD_VALUE;
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}
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mAudioHardware = hw;
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mFd = fd;
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mDevice = devices;
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return NO_ERROR;
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}
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AudioStreamInGeneric::~AudioStreamInGeneric()
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{
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}
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ssize_t AudioStreamInGeneric::read(void* buffer, ssize_t bytes)
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{
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AutoMutex lock(mLock);
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if (mFd < 0) {
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LOGE("Attempt to read from unopened device");
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return NO_INIT;
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}
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return ::read(mFd, buffer, bytes);
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}
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status_t AudioStreamInGeneric::dump(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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snprintf(buffer, SIZE, "AudioStreamInGeneric::dump\n");
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result.append(buffer);
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snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tchannels: %d\n", channels());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tformat: %d\n", format());
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result.append(buffer);
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snprintf(buffer, SIZE, "\tdevice: %d\n", mDevice);
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result.append(buffer);
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snprintf(buffer, SIZE, "\tmAudioHardware: %p\n", mAudioHardware);
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result.append(buffer);
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snprintf(buffer, SIZE, "\tmFd: %d\n", mFd);
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result.append(buffer);
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::write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t AudioStreamInGeneric::setParameters(const String8& keyValuePairs)
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{
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AudioParameter param = AudioParameter(keyValuePairs);
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String8 key = String8(AudioParameter::keyRouting);
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status_t status = NO_ERROR;
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int device;
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LOGV("setParameters() %s", keyValuePairs.string());
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if (param.getInt(key, device) == NO_ERROR) {
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mDevice = device;
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param.remove(key);
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}
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if (param.size()) {
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status = BAD_VALUE;
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}
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return status;
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}
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String8 AudioStreamInGeneric::getParameters(const String8& keys)
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{
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AudioParameter param = AudioParameter(keys);
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String8 value;
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String8 key = String8(AudioParameter::keyRouting);
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if (param.get(key, value) == NO_ERROR) {
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param.addInt(key, (int)mDevice);
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}
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LOGV("getParameters() %s", param.toString().string());
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return param.toString();
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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