| /* |
| * Copyright (C) 2017 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 "chre/platform/platform_audio.h" |
| |
| #include <cstring> |
| |
| #include "chre/core/event_loop_manager.h" |
| #include "chre/platform/host_link.h" |
| #include "chre/platform/log.h" |
| #include "chre/platform/shared/pal_system_api.h" |
| #include "chre/platform/slpi/power_control_util.h" |
| |
| namespace chre { |
| namespace { |
| |
| void handleAudioDataEvent(struct chreAudioDataEvent *event) { |
| EventLoopManagerSingleton::get() |
| ->getAudioRequestManager() |
| .handleAudioDataEvent(event); |
| } |
| |
| void handleAudioAvailability(uint32_t handle, bool available) { |
| LOGD("SPI audio handle %" PRIu32 " available: %d", handle, available); |
| EventLoopManagerSingleton::get() |
| ->getAudioRequestManager() |
| .handleAudioAvailability(handle, available); |
| } |
| |
| } // anonymous namespace |
| |
| const chrePalAudioCallbacks PlatformAudioBase::sAudioCallbacks = { |
| handleAudioDataEvent, |
| handleAudioAvailability, |
| }; |
| |
| PlatformAudio::PlatformAudio() {} |
| |
| PlatformAudio::~PlatformAudio() { |
| if (mAudioApi != nullptr) { |
| LOGV("Platform audio closing"); |
| mAudioApi->close(); |
| LOGV("Platform audio closed"); |
| } |
| } |
| |
| void PlatformAudio::init() { |
| mAudioApi = chrePalAudioGetApi(CHRE_PAL_AUDIO_API_CURRENT_VERSION); |
| if (mAudioApi != nullptr) { |
| if (!mAudioApi->open(&gChrePalSystemApi, &sAudioCallbacks)) { |
| LOGD("Audio PAL open returned false"); |
| mAudioApi = nullptr; |
| } else { |
| LOGD("Opened audio PAL version 0x%08" PRIx32, mAudioApi->moduleVersion); |
| } |
| } else { |
| LOGW("Requested audio PAL (version 0x%08" PRIx32 ") not found", |
| CHRE_PAL_AUDIO_API_CURRENT_VERSION); |
| } |
| } |
| |
| void PlatformAudio::setHandleEnabled(uint32_t handle, bool enabled) { |
| uint32_t lastNumAudioClients = mNumAudioClients; |
| |
| if (enabled) { |
| mNumAudioClients++; |
| } else if (mNumAudioClients > 0) { |
| mNumAudioClients--; |
| } else { |
| LOGE("Invalid request to change handle enabled state"); |
| } |
| |
| if (lastNumAudioClients == 0 && mNumAudioClients > 0) { |
| mTargetAudioEnabled = true; |
| if (!mCurrentAudioEnabled) { |
| LOGD("Enabling audio"); |
| mCurrentAudioEnabled = true; |
| sendAudioRequest(); |
| } |
| } else if (lastNumAudioClients > 0 && mNumAudioClients == 0) { |
| mTargetAudioEnabled = false; |
| if (EventLoopManagerSingleton::get() |
| ->getEventLoop() |
| .getPowerControlManager() |
| .hostIsAwake()) { |
| onHostAwake(); |
| } else { |
| LOGD("Deferring disable audio"); |
| } |
| } |
| } |
| |
| bool PlatformAudio::requestAudioDataEvent(uint32_t handle, uint32_t numSamples, |
| Nanoseconds eventDelay) { |
| bool success = false; |
| if (mAudioApi != nullptr) { |
| success = mAudioApi->requestAudioDataEvent(handle, numSamples, |
| eventDelay.toRawNanoseconds()); |
| } |
| |
| return success; |
| } |
| |
| void PlatformAudio::cancelAudioDataEventRequest(uint32_t handle) { |
| if (mAudioApi != nullptr) { |
| mAudioApi->cancelAudioDataEvent(handle); |
| } |
| } |
| |
| void PlatformAudio::releaseAudioDataEvent(struct chreAudioDataEvent *event) { |
| if (mAudioApi != nullptr) { |
| mAudioApi->releaseAudioDataEvent(event); |
| } |
| } |
| |
| size_t PlatformAudio::getSourceCount() { |
| size_t sourceCount = 0; |
| if (mAudioApi != nullptr) { |
| sourceCount = mAudioApi->getSourceCount(); |
| } |
| |
| return sourceCount; |
| } |
| |
| bool PlatformAudio::getAudioSource(uint32_t handle, |
| struct chreAudioSource *source) const { |
| bool success = false; |
| if (mAudioApi != nullptr) { |
| success = mAudioApi->getAudioSource(handle, source); |
| } |
| |
| return success; |
| } |
| |
| void PlatformAudioBase::onHostAwake() { |
| if (mCurrentAudioEnabled && !mTargetAudioEnabled) { |
| LOGD("Disabling audio"); |
| mCurrentAudioEnabled = mTargetAudioEnabled; |
| sendAudioRelease(); |
| } |
| } |
| |
| } // namespace chre |