blob: 57874f3ce1aba4fcc6cf6d69602a52857a24e882 [file] [log] [blame]
/*
**
** 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);
closeOutputStream((AudioStreamOut *)mOutput);
closeInputStream((AudioStreamIn *)mInput);
}
status_t AudioHardwareGeneric::initCheck()
{
if (mFd >= 0) {
if (::access(kAudioDeviceName, O_RDWR) == NO_ERROR)
return NO_ERROR;
}
return NO_INIT;
}
AudioStreamOut* AudioHardwareGeneric::openOutputStream(
uint32_t devices, int *format, uint32_t *channels, 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, devices, format, channels, sampleRate);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR) {
mOutput = out;
} else {
delete out;
}
return mOutput;
}
void AudioHardwareGeneric::closeOutputStream(AudioStreamOut* out) {
if (mOutput && out == mOutput) {
delete mOutput;
mOutput = 0;
}
}
AudioStreamIn* AudioHardwareGeneric::openInputStream(
uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate,
status_t *status, AudioSystem::audio_in_acoustics acoustics)
{
// check for valid input source
if (!AudioSystem::isInputDevice((AudioSystem::audio_devices)devices)) {
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, devices, format, channels, sampleRate, acoustics);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR) {
mInput = in;
} else {
delete in;
}
return mInput;
}
void AudioHardwareGeneric::closeInputStream(AudioStreamIn* in) {
if (mInput && in == mInput) {
delete 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,
uint32_t devices,
int *pFormat,
uint32_t *pChannels,
uint32_t *pRate)
{
int lFormat = pFormat ? *pFormat : 0;
uint32_t lChannels = pChannels ? *pChannels : 0;
uint32_t lRate = pRate ? *pRate : 0;
// fix up defaults
if (lFormat == 0) lFormat = format();
if (lChannels == 0) lChannels = channels();
if (lRate == 0) lRate = sampleRate();
// check values
if ((lFormat != format()) ||
(lChannels != channels()) ||
(lRate != sampleRate())) {
if (pFormat) *pFormat = format();
if (pChannels) *pChannels = channels();
if (pRate) *pRate = sampleRate();
return BAD_VALUE;
}
if (pFormat) *pFormat = lFormat;
if (pChannels) *pChannels = lChannels;
if (pRate) *pRate = lRate;
mAudioHardware = hw;
mFd = fd;
mDevice = devices;
return NO_ERROR;
}
AudioStreamOutGeneric::~AudioStreamOutGeneric()
{
}
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, "\tchannels: %d\n", channels());
result.append(buffer);
snprintf(buffer, SIZE, "\tformat: %d\n", format());
result.append(buffer);
snprintf(buffer, SIZE, "\tdevice: %d\n", mDevice);
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;
}
status_t AudioStreamOutGeneric::setParameters(const String8& keyValuePairs)
{
AudioParameter param = AudioParameter(keyValuePairs);
String8 key = String8(AudioParameter::keyRouting);
status_t status = NO_ERROR;
int device;
LOGV("setParameters() %s", keyValuePairs.string());
if (param.getInt(key, device) == NO_ERROR) {
mDevice = device;
param.remove(key);
}
if (param.size()) {
status = BAD_VALUE;
}
return status;
}
String8 AudioStreamOutGeneric::getParameters(const String8& keys)
{
AudioParameter param = AudioParameter(keys);
String8 value;
String8 key = String8(AudioParameter::keyRouting);
if (param.get(key, value) == NO_ERROR) {
param.addInt(key, (int)mDevice);
}
LOGV("getParameters() %s", param.toString().string());
return param.toString();
}
// ----------------------------------------------------------------------------
// record functions
status_t AudioStreamInGeneric::set(
AudioHardwareGeneric *hw,
int fd,
uint32_t devices,
int *pFormat,
uint32_t *pChannels,
uint32_t *pRate,
AudioSystem::audio_in_acoustics acoustics)
{
// FIXME: remove logging
if (pFormat == 0 || pChannels == 0 || pRate == 0) return BAD_VALUE;
LOGD("AudioStreamInGeneric::set(%p, %d, %d, %d, %u)", hw, fd, *pFormat, *pChannels, *pRate);
// check values
if ((*pFormat != format()) ||
(*pChannels != channels()) ||
(*pRate != sampleRate())) {
LOGE("Error opening input channel");
*pFormat = format();
*pChannels = channels();
*pRate = sampleRate();
return BAD_VALUE;
}
mAudioHardware = hw;
mFd = fd;
mDevice = devices;
return NO_ERROR;
}
AudioStreamInGeneric::~AudioStreamInGeneric()
{
// FIXME: remove logging
LOGD("AudioStreamInGeneric destructor");
}
ssize_t AudioStreamInGeneric::read(void* buffer, ssize_t bytes)
{
// FIXME: remove logging
LOGD("AudioStreamInGeneric::read(%p, %d) from fd %d", buffer, (int)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, "\tchannels: %d\n", channels());
result.append(buffer);
snprintf(buffer, SIZE, "\tformat: %d\n", format());
result.append(buffer);
snprintf(buffer, SIZE, "\tdevice: %d\n", mDevice);
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;
}
status_t AudioStreamInGeneric::setParameters(const String8& keyValuePairs)
{
AudioParameter param = AudioParameter(keyValuePairs);
String8 key = String8(AudioParameter::keyRouting);
status_t status = NO_ERROR;
int device;
LOGV("setParameters() %s", keyValuePairs.string());
if (param.getInt(key, device) == NO_ERROR) {
mDevice = device;
param.remove(key);
}
if (param.size()) {
status = BAD_VALUE;
}
return status;
}
String8 AudioStreamInGeneric::getParameters(const String8& keys)
{
AudioParameter param = AudioParameter(keys);
String8 value;
String8 key = String8(AudioParameter::keyRouting);
if (param.get(key, value) == NO_ERROR) {
param.addInt(key, (int)mDevice);
}
LOGV("getParameters() %s", param.toString().string());
return param.toString();
}
// ----------------------------------------------------------------------------
}; // namespace android