330 lines
8.8 KiB
C++
330 lines
8.8 KiB
C++
/*
|
|
**
|
|
** 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"
|
|
#include <media/AudioRecord.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 inputSource, int format, int channelCount, uint32_t sampleRate,
|
|
status_t *status, AudioSystem::audio_in_acoustics acoustics)
|
|
{
|
|
// check for valid input source
|
|
if ((inputSource != AudioRecord::DEFAULT_INPUT) &&
|
|
(inputSource != AudioRecord::MIC_INPUT)) {
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// DEPRECATED
|
|
AudioStreamIn* AudioHardwareGeneric::openInputStream(
|
|
int format, int channelCount, uint32_t sampleRate, status_t *status,
|
|
AudioSystem::audio_in_acoustics acoustic_flags)
|
|
{
|
|
return openInputStream(AudioRecord::DEFAULT_INPUT, format, channelCount,
|
|
sampleRate, status, acoustic_flags);
|
|
}
|
|
|
|
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
|