device_phh_treble/bluetooth/audio/hal/PrimaryDevice.cpp
Peter Cai 978ccd40f9 gsi: Initial implementation of sysbta, a system-side bluetooth audio HAL
On platform release T, the legacy `audio.a2dp.default` HAL no longer
exists, and cannot be trivially restored for generic system-side A2DP
audio support. Rather than trying to cling on to its existence (which
does not even work anymore even if one did so), it is time to come up
with a new solution.

This commit introduces a system-side implementation of the generic
bluetooth audio HAL. The HAL itself is modelled after the default
bluetooth audio HAL, while substantial components of the default audio
HAL are also included as it has to also implement the audio HAL
interfaces.

The audio HAL implementation is delegated to `audio.sysbta.default`,
forked from `audio.bluetooth.default` from the Bluetooth apex package.
It then communicates with the bluetooth audio HAL interfaces, which need
to live in the same process (in this case, the process of the sysbta
HAL). This is why we cannot just load `audio.sysbta.default` into the
default audio HAL or the audioserver process directly, but rather have
to include our own simplistic audio HAL implementation.

For now, the audio HAL implementation only includes one for the 6.0
version, but technically, an interface for *every* audio HAL version
needs to exist. This, along with other messiness in the sysbta
implementation, will be addressed in a future commit.

Note that to actually make use of the sysbta audio hal, patches in
frameworks/av and packages/modules/Bluetooth are required to introduce
support for the property `persist.bluetooth.system_audio_hal.enabled`.
2022-10-04 16:26:52 -04:00

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/*
* Copyright (C) 2018 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.
*/
#define LOG_TAG "PrimaryDeviceHAL"
#include "PrimaryDevice.h"
#include "Util.h"
#if MAJOR_VERSION >= 4
#include <cmath>
#endif
namespace android {
namespace hardware {
namespace audio {
namespace CPP_VERSION {
namespace implementation {
namespace util {
using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
}
PrimaryDevice::PrimaryDevice(audio_hw_device_t* device) : mDevice(new Device(device)) {}
PrimaryDevice::~PrimaryDevice() {
// Do not call mDevice->close here. If there are any unclosed streams,
// they only hold IDevice instance, not IPrimaryDevice, thus IPrimaryDevice
// "part" of a device can be destroyed before the streams.
}
// Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
Return<Result> PrimaryDevice::initCheck() {
return mDevice->initCheck();
}
Return<Result> PrimaryDevice::setMasterVolume(float volume) {
return mDevice->setMasterVolume(volume);
}
Return<void> PrimaryDevice::getMasterVolume(getMasterVolume_cb _hidl_cb) {
return mDevice->getMasterVolume(_hidl_cb);
}
Return<Result> PrimaryDevice::setMicMute(bool mute) {
return mDevice->setMicMute(mute);
}
Return<void> PrimaryDevice::getMicMute(getMicMute_cb _hidl_cb) {
return mDevice->getMicMute(_hidl_cb);
}
Return<Result> PrimaryDevice::setMasterMute(bool mute) {
return mDevice->setMasterMute(mute);
}
Return<void> PrimaryDevice::getMasterMute(getMasterMute_cb _hidl_cb) {
return mDevice->getMasterMute(_hidl_cb);
}
Return<void> PrimaryDevice::getInputBufferSize(const AudioConfig& config,
getInputBufferSize_cb _hidl_cb) {
return mDevice->getInputBufferSize(config, _hidl_cb);
}
#if MAJOR_VERSION == 2
Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
const AudioConfig& config, AudioOutputFlags flags,
openOutputStream_cb _hidl_cb) {
return mDevice->openOutputStream(ioHandle, device, config, flags, _hidl_cb);
}
Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
const AudioConfig& config, AudioInputFlags flags,
AudioSource source, openInputStream_cb _hidl_cb) {
return mDevice->openInputStream(ioHandle, device, config, flags, source, _hidl_cb);
}
#elif MAJOR_VERSION >= 4
Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
const AudioConfig& config,
#if MAJOR_VERSION <= 6
AudioOutputFlags flags,
#else
const AudioOutputFlags& flags,
#endif
const SourceMetadata& sourceMetadata,
openOutputStream_cb _hidl_cb) {
return mDevice->openOutputStream(ioHandle, device, config, flags, sourceMetadata, _hidl_cb);
}
Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
const AudioConfig& config,
#if MAJOR_VERSION <= 6
AudioInputFlags flags,
#else
const AudioInputFlags& flags,
#endif
const SinkMetadata& sinkMetadata,
openInputStream_cb _hidl_cb) {
return mDevice->openInputStream(ioHandle, device, config, flags, sinkMetadata, _hidl_cb);
}
#endif
Return<bool> PrimaryDevice::supportsAudioPatches() {
return mDevice->supportsAudioPatches();
}
Return<void> PrimaryDevice::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
const hidl_vec<AudioPortConfig>& sinks,
createAudioPatch_cb _hidl_cb) {
return mDevice->createAudioPatch(sources, sinks, _hidl_cb);
}
Return<Result> PrimaryDevice::releaseAudioPatch(int32_t patch) {
return mDevice->releaseAudioPatch(patch);
}
Return<void> PrimaryDevice::getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) {
return mDevice->getAudioPort(port, _hidl_cb);
}
Return<Result> PrimaryDevice::setAudioPortConfig(const AudioPortConfig& config) {
return mDevice->setAudioPortConfig(config);
}
Return<Result> PrimaryDevice::setScreenState(bool turnedOn) {
return mDevice->setScreenState(turnedOn);
}
#if MAJOR_VERSION == 2
Return<AudioHwSync> PrimaryDevice::getHwAvSync() {
return mDevice->getHwAvSync();
}
Return<void> PrimaryDevice::getParameters(const hidl_vec<hidl_string>& keys,
getParameters_cb _hidl_cb) {
return mDevice->getParameters(keys, _hidl_cb);
}
Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& parameters) {
return mDevice->setParameters(parameters);
}
Return<void> PrimaryDevice::debugDump(const hidl_handle& fd) {
return mDevice->debugDump(fd);
}
#elif MAJOR_VERSION >= 4
Return<void> PrimaryDevice::getHwAvSync(getHwAvSync_cb _hidl_cb) {
return mDevice->getHwAvSync(_hidl_cb);
}
Return<void> PrimaryDevice::getParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<hidl_string>& keys,
getParameters_cb _hidl_cb) {
return mDevice->getParameters(context, keys, _hidl_cb);
}
Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<ParameterValue>& parameters) {
return mDevice->setParameters(context, parameters);
}
Return<void> PrimaryDevice::getMicrophones(getMicrophones_cb _hidl_cb) {
return mDevice->getMicrophones(_hidl_cb);
}
Return<Result> PrimaryDevice::setConnectedState(const DeviceAddress& address, bool connected) {
return mDevice->setConnectedState(address, connected);
}
#endif
#if MAJOR_VERSION >= 6
Return<Result> PrimaryDevice::close() {
return mDevice->close();
}
Return<Result> PrimaryDevice::addDeviceEffect(AudioPortHandle device, uint64_t effectId) {
return mDevice->addDeviceEffect(device, effectId);
}
Return<Result> PrimaryDevice::removeDeviceEffect(AudioPortHandle device, uint64_t effectId) {
return mDevice->removeDeviceEffect(device, effectId);
}
Return<void> PrimaryDevice::updateAudioPatch(int32_t previousPatch,
const hidl_vec<AudioPortConfig>& sources,
const hidl_vec<AudioPortConfig>& sinks,
updateAudioPatch_cb _hidl_cb) {
return mDevice->updateAudioPatch(previousPatch, sources, sinks, _hidl_cb);
}
#endif
// Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
if (!util::isGainNormalized(volume)) {
ALOGW("Can not set a voice volume (%f) outside [0,1]", volume);
return Result::INVALID_ARGUMENTS;
}
return mDevice->analyzeStatus("set_voice_volume",
mDevice->device()->set_voice_volume(mDevice->device(), volume));
}
Return<Result> PrimaryDevice::setMode(AudioMode mode) {
// INVALID, CURRENT, CNT, MAX are reserved for internal use.
// TODO: remove the values from the HIDL interface
switch (mode) {
case AudioMode::NORMAL:
case AudioMode::RINGTONE:
case AudioMode::IN_CALL:
case AudioMode::IN_COMMUNICATION:
#if MAJOR_VERSION >= 6
case AudioMode::CALL_SCREEN:
#endif
break; // Valid values
default:
return Result::INVALID_ARGUMENTS;
};
return mDevice->analyzeStatus(
"set_mode",
mDevice->device()->set_mode(mDevice->device(), static_cast<audio_mode_t>(mode)));
}
Return<void> PrimaryDevice::getBtScoNrecEnabled(getBtScoNrecEnabled_cb _hidl_cb) {
bool enabled;
Result retval = mDevice->getParam(AudioParameter::keyBtNrec, &enabled);
_hidl_cb(retval, enabled);
return Void();
}
Return<Result> PrimaryDevice::setBtScoNrecEnabled(bool enabled) {
return mDevice->setParam(AudioParameter::keyBtNrec, enabled);
}
Return<void> PrimaryDevice::getBtScoWidebandEnabled(getBtScoWidebandEnabled_cb _hidl_cb) {
bool enabled;
Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, &enabled);
_hidl_cb(retval, enabled);
return Void();
}
Return<Result> PrimaryDevice::setBtScoWidebandEnabled(bool enabled) {
return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, enabled);
}
static const char* convertTtyModeFromHIDL(IPrimaryDevice::TtyMode mode) {
switch (mode) {
case IPrimaryDevice::TtyMode::OFF:
return AUDIO_PARAMETER_VALUE_TTY_OFF;
case IPrimaryDevice::TtyMode::VCO:
return AUDIO_PARAMETER_VALUE_TTY_VCO;
case IPrimaryDevice::TtyMode::HCO:
return AUDIO_PARAMETER_VALUE_TTY_HCO;
case IPrimaryDevice::TtyMode::FULL:
return AUDIO_PARAMETER_VALUE_TTY_FULL;
default:
return nullptr;
}
}
static IPrimaryDevice::TtyMode convertTtyModeToHIDL(const char* halMode) {
if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_OFF) == 0)
return IPrimaryDevice::TtyMode::OFF;
else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_VCO) == 0)
return IPrimaryDevice::TtyMode::VCO;
else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_HCO) == 0)
return IPrimaryDevice::TtyMode::HCO;
else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_FULL) == 0)
return IPrimaryDevice::TtyMode::FULL;
return IPrimaryDevice::TtyMode(-1);
}
Return<void> PrimaryDevice::getTtyMode(getTtyMode_cb _hidl_cb) {
String8 halMode;
Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_TTY_MODE, &halMode);
if (retval != Result::OK) {
_hidl_cb(retval, TtyMode::OFF);
return Void();
}
TtyMode mode = convertTtyModeToHIDL(halMode);
if (mode == TtyMode(-1)) {
ALOGE("HAL returned invalid TTY value: %s", halMode.c_str());
_hidl_cb(Result::INVALID_STATE, TtyMode::OFF);
return Void();
}
_hidl_cb(Result::OK, mode);
return Void();
}
Return<Result> PrimaryDevice::setTtyMode(IPrimaryDevice::TtyMode mode) {
const char* modeStr = convertTtyModeFromHIDL(mode);
if (modeStr == nullptr) {
ALOGW("Can not set an invalid TTY value: %d", mode);
return Result::INVALID_ARGUMENTS;
}
return mDevice->setParam(AUDIO_PARAMETER_KEY_TTY_MODE, modeStr);
}
Return<void> PrimaryDevice::getHacEnabled(getHacEnabled_cb _hidl_cb) {
bool enabled;
Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HAC, &enabled);
_hidl_cb(retval, enabled);
return Void();
}
Return<Result> PrimaryDevice::setHacEnabled(bool enabled) {
return mDevice->setParam(AUDIO_PARAMETER_KEY_HAC, enabled);
}
#if MAJOR_VERSION >= 4
Return<Result> PrimaryDevice::setBtScoHeadsetDebugName(const hidl_string& name) {
return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_HEADSET_NAME, name.c_str());
}
Return<void> PrimaryDevice::getBtHfpEnabled(getBtHfpEnabled_cb _hidl_cb) {
bool enabled;
Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, &enabled);
_hidl_cb(retval, enabled);
return Void();
}
Return<Result> PrimaryDevice::setBtHfpEnabled(bool enabled) {
return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, enabled);
}
Return<Result> PrimaryDevice::setBtHfpSampleRate(uint32_t sampleRateHz) {
return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_SET_SAMPLING_RATE, int(sampleRateHz));
}
Return<Result> PrimaryDevice::setBtHfpVolume(float volume) {
if (!util::isGainNormalized(volume)) {
ALOGW("Can not set BT HFP volume (%f) outside [0,1]", volume);
return Result::INVALID_ARGUMENTS;
}
// Map the normalized volume onto the range of [0, 15]
return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_VOLUME,
static_cast<int>(std::round(volume * 15)));
}
Return<Result> PrimaryDevice::updateRotation(IPrimaryDevice::Rotation rotation) {
// legacy API expects the rotation in degree
return mDevice->setParam(AUDIO_PARAMETER_KEY_ROTATION, int(rotation) * 90);
}
#endif
Return<void> PrimaryDevice::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
return mDevice->debug(fd, options);
}
} // namespace implementation
} // namespace CPP_VERSION
} // namespace audio
} // namespace hardware
} // namespace android