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146 lines
3.9 KiB
146 lines
3.9 KiB
/*
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* Copyright (C) 2020 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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#include "chre/core/init.h"
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#include "chpp/platform/chpp_init.h"
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#include "chre/core/event_loop_manager.h"
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#include "chre/core/static_nanoapps.h"
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#include "chre/platform/shared/dram_vote_client.h"
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#include "chre/target_platform/init.h"
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#ifdef CHRE_USE_BUFFERED_LOGGING
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#include "chre/platform/shared/log_buffer_manager.h"
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#include "chre/target_platform/macros.h"
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#endif
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#include "task.h"
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namespace chre {
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namespace freertos {
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namespace {
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constexpr configSTACK_DEPTH_TYPE kChreTaskStackDepthWords = 0x800;
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constexpr UBaseType_t kChreTaskPriority = tskIDLE_PRIORITY + 1;
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TaskHandle_t gChreTaskHandle;
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#ifdef CHRE_USE_BUFFERED_LOGGING
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TaskHandle_t gChreFlushTaskHandle;
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#ifdef CHRE_HIGH_POWER_TEXT_ATTRIBUTE
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CHRE_HIGH_POWER_TEXT_ATTRIBUTE
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#endif
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uint8_t gSecondaryLogBufferData[CHRE_LOG_BUFFER_DATA_SIZE];
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uint8_t gPrimaryLogBufferData[CHRE_LOG_BUFFER_DATA_SIZE];
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#endif
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// This function is intended to be the task action function for FreeRTOS.
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// It Initializes CHRE, runs the event loop, and only exits if it receives
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// a message to shutdown. Note that depending on the hardware platform this
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// runs on, CHRE might create additional threads, which are cleaned up when
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// CHRE exits.
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void chreThreadEntry(void *context) {
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DramVoteClientSingleton::init();
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chre::init();
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chre::EventLoopManagerSingleton::get()->lateInit();
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chre::loadStaticNanoapps();
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chre::EventLoopManagerSingleton::get()->getEventLoop().run();
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// we only get here if the CHRE EventLoop exited
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chre::deinit();
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DramVoteClientSingleton::deinit();
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vTaskDelete(nullptr);
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gChreTaskHandle = nullptr;
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}
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#ifdef CHRE_USE_BUFFERED_LOGGING
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void chreFlushLogsToHostThreadEntry(void *context) {
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// Never exits
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chre::LogBufferManagerSingleton::get()->startSendLogsToHostLoop();
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}
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#endif
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} // namespace
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#ifdef CHRE_USE_BUFFERED_LOGGING
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const char *getChreFlushTaskName();
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#endif
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BaseType_t init() {
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BaseType_t rc = pdPASS;
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#ifdef CHRE_USE_BUFFERED_LOGGING
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chre::LogBufferManagerSingleton::init(gPrimaryLogBufferData,
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gSecondaryLogBufferData,
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sizeof(gPrimaryLogBufferData));
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rc = xTaskCreate(chreFlushLogsToHostThreadEntry, getChreFlushTaskName(),
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kChreTaskStackDepthWords, nullptr /* args */,
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kChreTaskPriority, &gChreFlushTaskHandle);
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#endif
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if (rc == pdPASS) {
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rc = xTaskCreate(chreThreadEntry, getChreTaskName(),
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kChreTaskStackDepthWords, nullptr /* args */,
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kChreTaskPriority, &gChreTaskHandle);
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}
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CHRE_ASSERT(rc == pdPASS);
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chpp::init();
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return rc;
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}
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void deinit() {
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// On a deinit call, we just stop the CHRE event loop. This causes the 'run'
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// method in the task function exit, and move on to handle task cleanup
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if (gChreTaskHandle != nullptr) {
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chre::EventLoopManagerSingleton::get()->getEventLoop().stop();
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}
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chpp::deinit();
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}
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const char *getChreTaskName() {
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static constexpr char kChreTaskName[] = "CHRE";
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return kChreTaskName;
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}
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#ifdef CHRE_USE_BUFFERED_LOGGING
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const char *getChreFlushTaskName() {
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static constexpr char kChreFlushTaskName[] = "CHRELogs";
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return kChreFlushTaskName;
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}
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#endif
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} // namespace freertos
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BaseType_t getChreTaskPriority() {
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return freertos::kChreTaskPriority;
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}
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} // namespace chre
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