403 lines
15 KiB
C++
403 lines
15 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "EffectHalHidl"
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//#define LOG_NDEBUG 0
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#include <android/hidl/manager/1.0/IServiceManager.h>
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#include <android-base/stringprintf.h>
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#include <common/all-versions/VersionUtils.h>
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#include <cutils/native_handle.h>
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#include <cutils/properties.h>
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#include <hwbinder/IPCThreadState.h>
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#include <media/EffectsFactoryApi.h>
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#include <mediautils/SchedulingPolicyService.h>
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#include <mediautils/TimeCheck.h>
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#include <system/audio_effects/effect_spatializer.h>
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#include <utils/Log.h>
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#include <util/EffectUtils.h>
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#include "EffectBufferHalHidl.h"
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#include "EffectHalHidl.h"
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using ::android::hardware::audio::common::utils::EnumBitfield;
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using ::android::hardware::audio::effect::CPP_VERSION::implementation::EffectUtils;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::MQDescriptorSync;
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using ::android::hardware::Return;
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namespace android {
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namespace effect {
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using namespace ::android::hardware::audio::common::CPP_VERSION;
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using namespace ::android::hardware::audio::effect::CPP_VERSION;
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#define TIME_CHECK() auto timeCheck = \
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mediautils::makeTimeCheckStatsForClassMethod(getClassName(), __func__)
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EffectHalHidl::EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId)
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: EffectConversionHelperHidl("EffectHalHidl"),
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mEffect(effect), mEffectId(effectId), mBuffersChanged(true), mEfGroup(nullptr) {
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effect_descriptor_t halDescriptor{};
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if (EffectHalHidl::getDescriptor(&halDescriptor) == NO_ERROR) {
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mIsInput = (halDescriptor.flags & EFFECT_FLAG_TYPE_PRE_PROC) == EFFECT_FLAG_TYPE_PRE_PROC;
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const bool isSpatializer =
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memcmp(&halDescriptor.type, FX_IID_SPATIALIZER, sizeof(effect_uuid_t)) == 0;
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if (isSpatializer) {
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constexpr int32_t kRTPriorityMin = 1;
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constexpr int32_t kRTPriorityMax = 3;
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const int32_t priorityBoost = property_get_int32("audio.spatializer.priority", 1);
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if (priorityBoost >= kRTPriorityMin && priorityBoost <= kRTPriorityMax) {
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ALOGD("%s: audio.spatializer.priority %d on effect %lld",
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__func__, priorityBoost, (long long)effectId);
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mHalThreadPriority = priorityBoost;
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}
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}
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}
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}
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EffectHalHidl::~EffectHalHidl() {
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if (mEffect != 0) {
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close();
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mEffect.clear();
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hardware::IPCThreadState::self()->flushCommands();
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}
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if (mEfGroup) {
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EventFlag::deleteEventFlag(&mEfGroup);
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}
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}
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status_t EffectHalHidl::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
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TIME_CHECK();
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if (!mBuffersChanged) {
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if (buffer.get() == nullptr || mInBuffer.get() == nullptr) {
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mBuffersChanged = buffer.get() != mInBuffer.get();
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} else {
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mBuffersChanged = buffer->audioBuffer() != mInBuffer->audioBuffer();
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}
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}
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mInBuffer = buffer;
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return OK;
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}
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status_t EffectHalHidl::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
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TIME_CHECK();
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if (!mBuffersChanged) {
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if (buffer.get() == nullptr || mOutBuffer.get() == nullptr) {
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mBuffersChanged = buffer.get() != mOutBuffer.get();
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} else {
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mBuffersChanged = buffer->audioBuffer() != mOutBuffer->audioBuffer();
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}
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}
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mOutBuffer = buffer;
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return OK;
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}
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status_t EffectHalHidl::process() {
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// TIME_CHECK(); // TODO(b/238654698) reenable only when optimized.
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return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS));
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}
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status_t EffectHalHidl::processReverse() {
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// TIME_CHECK(); // TODO(b/238654698) reenable only when optimized.
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return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_REVERSE));
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}
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status_t EffectHalHidl::prepareForProcessing() {
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std::unique_ptr<StatusMQ> tempStatusMQ;
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Result retval;
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Return<void> ret = mEffect->prepareForProcessing(
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[&](Result r, const MQDescriptorSync<Result>& statusMQ) {
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retval = r;
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if (retval == Result::OK) {
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tempStatusMQ.reset(new StatusMQ(statusMQ));
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if (tempStatusMQ->isValid() && tempStatusMQ->getEventFlagWord()) {
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EventFlag::createEventFlag(tempStatusMQ->getEventFlagWord(), &mEfGroup);
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}
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}
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});
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if (!ret.isOk() || retval != Result::OK) {
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return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
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}
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if (!tempStatusMQ || !tempStatusMQ->isValid() || !mEfGroup) {
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ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for effects");
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ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
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"Status message queue for effects is invalid");
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ALOGE_IF(!mEfGroup, "Event flag creation for effects failed");
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return NO_INIT;
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}
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(void)checkHalThreadPriority();
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mStatusMQ = std::move(tempStatusMQ);
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return OK;
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}
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bool EffectHalHidl::needToResetBuffers() {
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if (mBuffersChanged) return true;
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bool inBufferFrameCountUpdated = mInBuffer->checkFrameCountChange();
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bool outBufferFrameCountUpdated = mOutBuffer->checkFrameCountChange();
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return inBufferFrameCountUpdated || outBufferFrameCountUpdated;
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}
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status_t EffectHalHidl::processImpl(uint32_t mqFlag) {
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if (mEffect == 0 || mInBuffer == 0 || mOutBuffer == 0) return NO_INIT;
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status_t status;
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if (!mStatusMQ && (status = prepareForProcessing()) != OK) {
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return status;
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}
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if (needToResetBuffers() && (status = setProcessBuffers()) != OK) {
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return status;
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}
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// The data is already in the buffers, just need to flush it and wake up the server side.
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std::atomic_thread_fence(std::memory_order_release);
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mEfGroup->wake(mqFlag);
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uint32_t efState = 0;
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retry:
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status_t ret = mEfGroup->wait(
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static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING), &efState);
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if (efState & static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING)) {
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Result retval = Result::NOT_INITIALIZED;
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mStatusMQ->read(&retval);
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if (retval == Result::OK || retval == Result::INVALID_STATE) {
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// Sync back the changed contents of the buffer.
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std::atomic_thread_fence(std::memory_order_acquire);
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}
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return analyzeResult(retval);
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}
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if (ret == -EAGAIN || ret == -EINTR) {
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// Spurious wakeup. This normally retries no more than once.
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goto retry;
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}
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return ret;
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}
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status_t EffectHalHidl::setProcessBuffers() {
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Return<Result> ret = mEffect->setProcessBuffers(
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static_cast<EffectBufferHalHidl*>(mInBuffer.get())->hidlBuffer(),
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static_cast<EffectBufferHalHidl*>(mOutBuffer.get())->hidlBuffer());
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if (ret.isOk() && ret == Result::OK) {
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mBuffersChanged = false;
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return OK;
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}
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return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
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}
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status_t EffectHalHidl::command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
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uint32_t *replySize, void *pReplyData) {
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TIME_CHECK();
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if (mEffect == 0) return NO_INIT;
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// Special cases.
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if (cmdCode == EFFECT_CMD_SET_CONFIG || cmdCode == EFFECT_CMD_SET_CONFIG_REVERSE) {
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return setConfigImpl(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
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} else if (cmdCode == EFFECT_CMD_GET_CONFIG || cmdCode == EFFECT_CMD_GET_CONFIG_REVERSE) {
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return getConfigImpl(cmdCode, replySize, pReplyData);
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}
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// Common case.
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hidl_vec<uint8_t> hidlData;
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if (pCmdData != nullptr && cmdSize > 0) {
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hidlData.setToExternal(reinterpret_cast<uint8_t*>(pCmdData), cmdSize);
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}
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status_t status;
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uint32_t replySizeStub = 0;
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if (replySize == nullptr || pReplyData == nullptr) replySize = &replySizeStub;
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Return<void> ret = mEffect->command(cmdCode, hidlData, *replySize,
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[&](int32_t s, const hidl_vec<uint8_t>& result) {
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status = s;
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if (status == 0) {
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if (*replySize > result.size()) *replySize = result.size();
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if (pReplyData != nullptr && *replySize > 0) {
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memcpy(pReplyData, &result[0], *replySize);
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}
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}
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});
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return ret.isOk() ? status : FAILED_TRANSACTION;
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}
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status_t EffectHalHidl::getDescriptor(effect_descriptor_t *pDescriptor) {
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TIME_CHECK();
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if (mEffect == 0) return NO_INIT;
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Result retval = Result::NOT_INITIALIZED;
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Return<void> ret = mEffect->getDescriptor(
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[&](Result r, const EffectDescriptor& result) {
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retval = r;
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if (retval == Result::OK) {
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EffectUtils::effectDescriptorToHal(result, pDescriptor);
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}
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});
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return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
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}
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status_t EffectHalHidl::close() {
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TIME_CHECK();
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if (mEffect == 0) return NO_INIT;
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Return<Result> ret = mEffect->close();
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return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
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}
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status_t EffectHalHidl::dump(int fd) {
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TIME_CHECK();
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if (mEffect == 0) return NO_INIT;
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native_handle_t* hidlHandle = native_handle_create(1, 0);
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hidlHandle->data[0] = fd;
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Return<void> ret = mEffect->debug(hidlHandle, {} /* options */);
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native_handle_delete(hidlHandle);
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// TODO(b/111997867, b/177271958) Workaround - remove when fixed.
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// A Binder transmitted fd may not close immediately due to a race condition b/111997867
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// when the remote binder thread removes the last refcount to the fd blocks in the
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// kernel for binder activity. We send a Binder ping() command to unblock the thread
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// and complete the fd close / release.
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//
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// See DeviceHalHidl::dump(), EffectHalHidl::dump(), StreamHalHidl::dump(),
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// EffectsFactoryHalHidl::dumpEffects().
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(void)mEffect->ping(); // synchronous Binder call
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return ret.isOk() ? OK : FAILED_TRANSACTION;
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}
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status_t EffectHalHidl::getConfigImpl(
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uint32_t cmdCode, uint32_t *replySize, void *pReplyData) {
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if (replySize == NULL || *replySize != sizeof(effect_config_t) || pReplyData == NULL) {
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return BAD_VALUE;
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}
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status_t result = FAILED_TRANSACTION;
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Return<void> ret;
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if (cmdCode == EFFECT_CMD_GET_CONFIG) {
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ret = mEffect->getConfig([&] (Result r, const EffectConfig &hidlConfig) {
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result = analyzeResult(r);
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if (r == Result::OK) {
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EffectUtils::effectConfigToHal(
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hidlConfig, static_cast<effect_config_t*>(pReplyData));
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}
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});
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} else {
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ret = mEffect->getConfigReverse([&] (Result r, const EffectConfig &hidlConfig) {
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result = analyzeResult(r);
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if (r == Result::OK) {
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EffectUtils::effectConfigToHal(
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hidlConfig, static_cast<effect_config_t*>(pReplyData));
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}
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});
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}
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if (!ret.isOk()) {
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result = FAILED_TRANSACTION;
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}
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return result;
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}
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status_t EffectHalHidl::setConfigImpl(
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uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, uint32_t *replySize, void *pReplyData) {
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if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) ||
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replySize == NULL || *replySize != sizeof(int32_t) || pReplyData == NULL) {
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return BAD_VALUE;
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}
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const effect_config_t *halConfig = static_cast<effect_config_t*>(pCmdData);
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if (halConfig->inputCfg.bufferProvider.getBuffer != NULL ||
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halConfig->inputCfg.bufferProvider.releaseBuffer != NULL ||
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halConfig->outputCfg.bufferProvider.getBuffer != NULL ||
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halConfig->outputCfg.bufferProvider.releaseBuffer != NULL) {
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ALOGE("Buffer provider callbacks are not supported");
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}
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EffectConfig hidlConfig;
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EffectUtils::effectConfigFromHal(*halConfig, mIsInput, &hidlConfig);
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Return<Result> ret = cmdCode == EFFECT_CMD_SET_CONFIG ?
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mEffect->setConfig(hidlConfig, nullptr, nullptr) :
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mEffect->setConfigReverse(hidlConfig, nullptr, nullptr);
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status_t result = FAILED_TRANSACTION;
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if (ret.isOk()) {
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result = analyzeResult(ret);
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*static_cast<int32_t*>(pReplyData) = result;
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}
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return result;
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}
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status_t EffectHalHidl::getHalPid(pid_t *pid) const {
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using ::android::hidl::base::V1_0::DebugInfo;
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using ::android::hidl::manager::V1_0::IServiceManager;
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DebugInfo debugInfo;
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const auto ret = mEffect->getDebugInfo([&] (const auto &info) {
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debugInfo = info;
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});
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if (!ret.isOk()) {
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ALOGW("%s: cannot get effect debug info", __func__);
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return INVALID_OPERATION;
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}
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if (debugInfo.pid != (int)IServiceManager::PidConstant::NO_PID) {
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*pid = debugInfo.pid;
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return NO_ERROR;
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}
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ALOGW("%s: effect debug info does not contain pid", __func__);
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return NAME_NOT_FOUND;
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}
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status_t EffectHalHidl::getHalWorkerTid(pid_t *tid) {
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int32_t reply = -1;
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uint32_t replySize = sizeof(reply);
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const status_t status =
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command('gtid', 0 /* cmdSize */, nullptr /* pCmdData */, &replySize, &reply);
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if (status == OK) {
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*tid = (pid_t)reply;
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} else {
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ALOGW("%s: failed with status:%d", __func__, status);
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}
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return status;
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}
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bool EffectHalHidl::requestHalThreadPriority(pid_t threadPid, pid_t threadId) {
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if (mHalThreadPriority == kRTPriorityDisabled) {
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return true;
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}
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const int err = requestPriority(
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threadPid, threadId,
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mHalThreadPriority, false /*isForApp*/, true /*asynchronous*/);
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ALOGW_IF(err, "%s: failed to set RT priority %d for pid %d tid %d; error %d",
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__func__, mHalThreadPriority, threadPid, threadId, err);
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// Audio will still work, but may be more susceptible to glitches.
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return err == 0;
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}
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status_t EffectHalHidl::checkHalThreadPriority() {
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if (mHalThreadPriority == kRTPriorityDisabled) return OK;
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if (mHalThreadPriority < kRTPriorityMin
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|| mHalThreadPriority > kRTPriorityMax) return BAD_VALUE;
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pid_t halPid, halWorkerTid;
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const status_t status = getHalPid(&halPid) ?: getHalWorkerTid(&halWorkerTid);
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const bool success = status == OK && requestHalThreadPriority(halPid, halWorkerTid);
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ALOGD("%s: effectId %lld RT priority(%d) request %s%s",
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__func__, (long long)mEffectId, mHalThreadPriority,
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success ? "succeeded" : "failed",
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status == OK
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? base::StringPrintf(" for pid:%d tid:%d", halPid, halWorkerTid).c_str()
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: " (pid / tid cannot be read)");
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return success ? OK : status != OK ? status : INVALID_OPERATION /* request failed */;
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}
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} // namespace effect
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} // namespace android
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