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c2bb90a40684002de1786280a4815833af0963b4
pawlet_rpi4/audio/bluetooth/ModuleBluetoothBase.cpp
T
oxmc 8d5f56fd05 Sync to upstream android-17.0 (AOSP17) 
Pull in raspberry-vanilla's AOSP17 device tree changes for rpi4 while
keeping all PawletOS customizations (A/B partition layout, sepolicy,
zram, TWRP recovery scaffolding, ALSA HDMI pre-warm, product/overlay
structure) intact on top.

Upstream changes absorbed:
- AOSP17 audio HAL refactor (StreamAlsa split into StreamAlsaBase/
  StreamAlsaMonoPipe, Utils.cpp -> UtilsAlsa.cpp, new Bluetooth/stub
  helper classes, libeffects AIDL rebuild via *_ndk_shared defaults)
- API level 36 -> 37, FCM matrix level 202504 -> 202604
- QuickSettings tile default split (SystemUIRpiOverlay, ported into
  pawlet_rpi_common where this overlay now lives)
- vendor_tracing_descriptors added to enforce-product-packages-exist
- misc AOSP17 logging header switch (android-base/logging.h -> Log.h)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-04 00:16:17 -07:00

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/*
* Copyright (C) 2025 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 "AHAL_ModuleBluetooth"
#include <Log.h>
#include "core-impl/ModuleBluetoothBase.h"
#include "core-impl/StreamBluetooth.h"
using aidl::android::hardware::audio::common::SinkMetadata;
using aidl::android::hardware::audio::common::SourceMetadata;
using aidl::android::hardware::bluetooth::audio::ChannelMode;
using aidl::android::hardware::bluetooth::audio::PcmConfiguration;
using aidl::android::media::audio::common::AudioChannelLayout;
using aidl::android::media::audio::common::AudioConfigBase;
using aidl::android::media::audio::common::AudioDeviceDescription;
using aidl::android::media::audio::common::AudioDeviceType;
using aidl::android::media::audio::common::AudioFormatDescription;
using aidl::android::media::audio::common::AudioFormatType;
using aidl::android::media::audio::common::AudioIoFlags;
using aidl::android::media::audio::common::AudioOffloadInfo;
using aidl::android::media::audio::common::AudioPort;
using aidl::android::media::audio::common::AudioPortConfig;
using aidl::android::media::audio::common::AudioPortExt;
using aidl::android::media::audio::common::AudioProfile;
using aidl::android::media::audio::common::Int;
using aidl::android::media::audio::common::MicrophoneInfo;
using aidl::android::media::audio::common::PcmType;
namespace aidl::android::hardware::audio::core {
namespace {
PcmType pcmTypeFromBitsPerSample(int8_t bitsPerSample) {
if (bitsPerSample == 8)
return PcmType::UINT_8_BIT;
else if (bitsPerSample == 16)
return PcmType::INT_16_BIT;
else if (bitsPerSample == 24)
return PcmType::INT_24_BIT;
else if (bitsPerSample == 32)
return PcmType::INT_32_BIT;
ALOGE("Unsupported bitsPerSample: %d", bitsPerSample);
return PcmType::DEFAULT;
}
AudioChannelLayout channelLayoutFromChannelMode(ChannelMode mode) {
if (mode == ChannelMode::MONO) {
return AudioChannelLayout::make<AudioChannelLayout::layoutMask>(
AudioChannelLayout::LAYOUT_MONO);
} else if (mode == ChannelMode::STEREO || mode == ChannelMode::DUALMONO) {
return AudioChannelLayout::make<AudioChannelLayout::layoutMask>(
AudioChannelLayout::LAYOUT_STEREO);
}
ALOGE("Unsupported channel mode: %s", toString(mode).c_str());
return AudioChannelLayout{};
}
} // namespace
ModuleBluetoothBase::ModuleBluetoothBase(std::unique_ptr<Module::Configuration>&& config)
: Module(Type::BLUETOOTH, std::move(config)) {}
ndk::ScopedAStatus ModuleBluetoothBase::getBluetoothA2dp(
std::shared_ptr<IBluetoothA2dp>* _aidl_return) {
*_aidl_return = getBtA2dp().getInstance();
LOG(DEBUG) << __func__ << ": returning instance of IBluetoothA2dp: " << _aidl_return->get();
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::getBluetoothLe(
std::shared_ptr<IBluetoothLe>* _aidl_return) {
*_aidl_return = getBtLe().getInstance();
LOG(DEBUG) << __func__ << ": returning instance of IBluetoothLe: " << _aidl_return->get();
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::getBluetooth(std::shared_ptr<IBluetooth>* _aidl_return) {
// Only provided when Bluetooth port is present.
const auto& ports = getConfig().ports;
bool hasSco = false;
for (const auto& port : ports) {
if (port.ext.getTag() == AudioPortExt::device &&
port.ext.get<AudioPortExt::device>().device.type.connection ==
AudioDeviceDescription::CONNECTION_BT_SCO) {
hasSco = true;
break;
}
}
if (hasSco) {
*_aidl_return = getBt().getInstance();
} else {
*_aidl_return = nullptr;
}
LOG(DEBUG) << __func__ << ": returning instance of IBluetooth: " << _aidl_return->get();
return ndk::ScopedAStatus::ok();
}
ChildInterface<BluetoothA2dp>& ModuleBluetoothBase::getBtA2dp() {
if (!mBluetoothA2dp) {
auto handle = ndk::SharedRefBase::make<BluetoothA2dp>();
handle->registerHandler(std::bind(&ModuleBluetoothBase::bluetoothParametersUpdated, this));
mBluetoothA2dp = handle;
}
return mBluetoothA2dp;
}
ChildInterface<BluetoothLe>& ModuleBluetoothBase::getBtLe() {
if (!mBluetoothLe) {
auto handle = ndk::SharedRefBase::make<BluetoothLe>();
handle->registerHandler(std::bind(&ModuleBluetoothBase::bluetoothParametersUpdated, this));
mBluetoothLe = handle;
}
return mBluetoothLe;
}
ChildInterface<Bluetooth>& ModuleBluetoothBase::getBt() {
if (!mBluetooth) {
auto handle = ndk::SharedRefBase::make<Bluetooth>();
handle->registerHandler(std::bind(&ModuleBluetoothBase::bluetoothParametersUpdated, this));
mBluetooth = handle;
}
return mBluetooth;
}
ModuleBluetoothBase::BtProfileHandles ModuleBluetoothBase::getBtProfileManagerHandles() {
return std::make_tuple(getBt().getPtr(), getBtA2dp().getPtr(), getBtLe().getPtr());
}
ndk::ScopedAStatus ModuleBluetoothBase::getMicMute(bool* _aidl_return __unused) {
LOG(DEBUG) << __func__ << ": is not supported";
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
ndk::ScopedAStatus ModuleBluetoothBase::setMicMute(bool in_mute __unused) {
LOG(DEBUG) << __func__ << ": is not supported";
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
ndk::ScopedAStatus ModuleBluetoothBase::setAudioPortConfig(const AudioPortConfig& in_requested,
AudioPortConfig* out_suggested,
bool* _aidl_return) {
// Since 'fillConfig' is only called when a new port config is created,
// handle the case of updating an existing port config separately.
int32_t portId = 0;
if (in_requested.id != 0) {
auto& configs = getConfig().portConfigs;
if (auto existing = findById<AudioPortConfig>(configs, in_requested.id);
existing != configs.end()) {
auto& ports = getConfig().ports;
auto portIt = findById<AudioPort>(ports, existing->portId);
if (portIt != ports.end() && portIt->ext.getTag() == AudioPortExt::Tag::device) {
portId = portIt->id;
}
}
}
auto fillConfig = [this](const AudioPort& port, AudioPortConfig* config) {
if (port.ext.getTag() == AudioPortExt::device) {
CachedProxy proxy;
auto status = findOrCreateProxy(port, proxy);
if (status.isOk()) {
const auto& pcmConfig = proxy.pcmConfig;
LOG(DEBUG) << "setAudioPortConfig: suggesting port config from "
<< pcmConfig.toString();
const auto pcmType = pcmTypeFromBitsPerSample(pcmConfig.bitsPerSample);
const auto channelMask = channelLayoutFromChannelMode(pcmConfig.channelMode);
if (pcmType != PcmType::DEFAULT && channelMask != AudioChannelLayout{}) {
config->format =
AudioFormatDescription{.type = AudioFormatType::PCM, .pcm = pcmType};
config->channelMask = channelMask;
config->sampleRate = Int{.value = pcmConfig.sampleRateHz};
config->flags = port.flags;
config->ext = port.ext;
return true;
}
}
}
return generateDefaultPortConfig(port, config);
};
RETURN_STATUS_IF_ERROR(
Module::setAudioPortConfigImpl(in_requested, fillConfig, out_suggested, _aidl_return));
if (portId != 0) {
auto& ports = getConfig().ports;
auto portIt = findById<AudioPort>(ports, portId);
if (portIt != ports.end() && portIt->ext.getTag() == AudioPortExt::Tag::device) {
CachedProxy proxy;
// Ignore error similar to 'fillConfig', this can happen in VTS tests when
// device connections are simulated.
findOrCreateProxy(*portIt, proxy);
}
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::supportsVariableLatency(bool* _aidl_return) {
LOG(DEBUG) << __func__ << ": " << getType();
*_aidl_return = true;
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::checkAudioPatchEndpointsMatch(
const std::vector<AudioPortConfig*>& sources, const std::vector<AudioPortConfig*>& sinks) {
// Both sources and sinks must be non-empty, this is guaranteed by 'setAudioPatch'.
const bool isInput = sources[0]->ext.getTag() == AudioPortExt::device;
const int32_t devicePortId = isInput ? sources[0]->portId : sinks[0]->portId;
const auto proxyIt = mProxies.find(devicePortId);
if (proxyIt == mProxies.end()) return ndk::ScopedAStatus::ok();
const auto& pcmConfig = proxyIt->second.pcmConfig;
const AudioPortConfig* mixPortConfig = isInput ? sinks[0] : sources[0];
if (!StreamBluetooth::checkConfigParams(
pcmConfig, AudioConfigBase{.sampleRate = mixPortConfig->sampleRate->value,
.channelMask = *(mixPortConfig->channelMask),
.format = *(mixPortConfig->format)})) {
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
if (int32_t handle = mixPortConfig->ext.get<AudioPortExt::mix>().handle; handle > 0) {
mConnections.insert(std::pair(handle, devicePortId));
}
return ndk::ScopedAStatus::ok();
}
void ModuleBluetoothBase::onExternalDeviceConnectionChanged(const AudioPort& audioPort,
bool connected) {
if (!connected) mProxies.erase(audioPort.id);
}
ndk::ScopedAStatus ModuleBluetoothBase::createInputStream(
StreamContext&& context, const SinkMetadata& sinkMetadata,
const std::vector<MicrophoneInfo>& microphones, std::shared_ptr<StreamIn>* result) {
CachedProxy proxy;
RETURN_STATUS_IF_ERROR(fetchAndCheckProxy(context, proxy));
return createStreamInstance<StreamInBluetooth>(result, std::move(context), sinkMetadata,
microphones, getBtProfileManagerHandles(),
proxy.ptr, proxy.pcmConfig);
}
ndk::ScopedAStatus ModuleBluetoothBase::createOutputStream(
StreamContext&& context, const SourceMetadata& sourceMetadata,
const std::optional<AudioOffloadInfo>& offloadInfo, std::shared_ptr<StreamOut>* result) {
CachedProxy proxy;
RETURN_STATUS_IF_ERROR(fetchAndCheckProxy(context, proxy));
return createStreamInstance<StreamOutBluetooth>(result, std::move(context), sourceMetadata,
offloadInfo, getBtProfileManagerHandles(),
proxy.ptr, proxy.pcmConfig);
}
ndk::ScopedAStatus ModuleBluetoothBase::populateConnectedDevicePort(AudioPort* audioPort,
int32_t nextPortId) {
if (audioPort->ext.getTag() != AudioPortExt::device) {
LOG(ERROR) << __func__ << ": not a device port: " << audioPort->toString();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
const auto& devicePort = audioPort->ext.get<AudioPortExt::device>();
const auto& description = devicePort.device.type;
// This method must return an error when the device can not be connected.
// Since A2DP/LE status events are sent asynchronously, it is more reliable
// to attempt connecting to the BT stack rather than judge by the A2DP/LE status.
if (description.connection != AudioDeviceDescription::CONNECTION_BT_A2DP &&
description.connection != AudioDeviceDescription::CONNECTION_BT_LE &&
description.connection != AudioDeviceDescription::CONNECTION_BT_SCO &&
!(description.connection == AudioDeviceDescription::CONNECTION_WIRELESS &&
description.type == AudioDeviceType::OUT_HEARING_AID)) {
LOG(ERROR) << __func__ << ": unsupported device type: " << audioPort->toString();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
CachedProxy proxy;
RETURN_STATUS_IF_ERROR(createProxy(*audioPort, nextPortId, proxy));
// If the device is actually connected, it is configured by the BT stack.
// Provide the current configuration instead of all possible profiles.
const auto& pcmConfig = proxy.pcmConfig;
audioPort->profiles.assign(
{AudioProfile{.format = AudioFormatDescription{.type = AudioFormatType::PCM,
.pcm = pcmTypeFromBitsPerSample(
pcmConfig.bitsPerSample)},
.channelMasks = std::vector<AudioChannelLayout>(
{channelLayoutFromChannelMode(pcmConfig.channelMode)}),
.sampleRates = std::vector<int>({pcmConfig.sampleRateHz})}});
LOG(DEBUG) << __func__ << ": " << audioPort->toString();
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::onMasterMuteChanged(bool) {
LOG(DEBUG) << __func__ << ": is not supported";
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
ndk::ScopedAStatus ModuleBluetoothBase::onMasterVolumeChanged(float) {
LOG(DEBUG) << __func__ << ": is not supported";
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
int32_t ModuleBluetoothBase::getNominalLatencyMs(const AudioPortConfig& portConfig) {
const auto connectionsIt = mConnections.find(portConfig.ext.get<AudioPortExt::mix>().handle);
if (connectionsIt != mConnections.end()) {
const auto proxyIt = mProxies.find(connectionsIt->second);
if (proxyIt != mProxies.end()) {
auto proxy = proxyIt->second.ptr;
size_t dataIntervalUs = 0;
if (!proxy->getPreferredDataIntervalUs(dataIntervalUs)) {
LOG(WARNING) << __func__ << ": could not fetch preferred data interval";
}
const bool isInput = portConfig.flags->getTag() == AudioIoFlags::input;
return isInput ? StreamInBluetooth::getNominalLatencyMs(dataIntervalUs)
: StreamOutBluetooth::getNominalLatencyMs(dataIntervalUs);
}
}
LOG(ERROR) << __func__ << ": no connection or proxy found for " << portConfig.toString();
return Module::getNominalLatencyMs(portConfig);
}
binder_status_t ModuleBluetoothBase::dump(int fd, const char** args, uint32_t numArgs) {
if (!::aidl::android::hardware::audio::common::hasArgument(
args, numArgs,
::aidl::android::hardware::audio::common::kDumpFromAudioServerArgument)) {
// Streams are dumped as part of audio flinger threads dump,
// no need for a separate dump since the module itself does not
// have anything interesting.
Module::dump(fd, args, numArgs);
}
return ::android::OK;
}
ndk::ScopedAStatus ModuleBluetoothBase::createProxy(const AudioPort& audioPort,
int32_t instancePortId, CachedProxy& proxy) {
proxy.ptr = createProxyInstance(audioPort.flags.getTag() == AudioIoFlags::input);
const auto& devicePort = audioPort.ext.get<AudioPortExt::device>();
const auto device = devicePort.device.type;
bool registrationSuccess = false;
for (int i = 0; i < kCreateProxyRetries && !registrationSuccess; ++i) {
registrationSuccess = proxy.ptr->registerPort(device);
usleep(kCreateProxyRetrySleepMs * 1000);
}
if (!registrationSuccess) {
LOG(ERROR) << __func__ << ": failed to register BT port for " << device.toString();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
}
if (!proxy.ptr->loadAudioConfig(proxy.pcmConfig)) {
LOG(ERROR) << __func__ << ": state=" << proxy.ptr->getState()
<< ", failed to load audio config";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
}
mProxies.insert(std::pair(instancePortId, proxy));
mProxiesWeak[device] = proxy.ptr;
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::fetchAndCheckProxy(const StreamContext& context,
CachedProxy& proxy) {
const auto connectionsIt = mConnections.find(context.getMixPortHandle());
if (connectionsIt != mConnections.end()) {
const auto proxyIt = mProxies.find(connectionsIt->second);
if (proxyIt != mProxies.end()) {
proxy = proxyIt->second;
mProxies.erase(proxyIt);
}
mConnections.erase(connectionsIt);
}
if (proxy.ptr != nullptr) {
if (!StreamBluetooth::checkConfigParams(
proxy.pcmConfig, AudioConfigBase{.sampleRate = context.getSampleRate(),
.channelMask = context.getChannelLayout(),
.format = context.getFormat()})) {
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
}
}
// Not having a proxy is OK, it may happen in VTS tests when streams are opened on unconnected
// mix ports.
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus ModuleBluetoothBase::findOrCreateProxy(const AudioPort& audioPort,
CachedProxy& proxy) {
if (auto proxyIt = mProxies.find(audioPort.id); proxyIt != mProxies.end()) {
proxy = proxyIt->second;
return ndk::ScopedAStatus::ok();
}
if (audioPort.ext.getTag() == AudioPortExt::Tag::device) {
const auto& description = audioPort.ext.get<AudioPortExt::Tag::device>().device.type;
auto weakIt = mProxiesWeak.find(description);
if (weakIt != mProxiesWeak.end()) {
if (auto existingProxy = weakIt->second.lock()) {
proxy.ptr = existingProxy;
if (proxy.ptr->loadAudioConfig(proxy.pcmConfig)) {
mProxies.insert(std::pair(audioPort.id, proxy));
LOG(DEBUG) << __func__ << ": Reused existing proxy for "
<< description.toString();
return ndk::ScopedAStatus::ok();
} else {
LOG(ERROR) << __func__ << ": Failed to load config from reused proxy";
}
}
// If expired or failed to load config, remove from map and create new
mProxiesWeak.erase(weakIt);
}
}
return createProxy(audioPort, audioPort.id, proxy);
}
} // namespace aidl::android::hardware::audio::core
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