| /* |
| ** |
| ** 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 |