1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CHRE_PLATFORM_FREERTOS_INIT_H_ 18 #define CHRE_PLATFORM_FREERTOS_INIT_H_ 19 20 #include "FreeRTOS.h" 21 22 namespace chre { 23 24 /** @return the CHRE task priority being used. */ 25 BaseType_t getChreTaskPriority(); 26 27 namespace freertos { 28 29 /** 30 * This init function spawns a (non-privileged) FreeRTOS task that 31 * initializes the CHRE core, loads any static nanoapps, and starts 32 * the CHRE event loop. 33 * The task attribute constants are located in the corresponding init.cc 34 * source file, in case they need to be altered. The defaults chosen are: 35 * - Task Stack Depth: 8K Words 36 * - Task Priority: 1 (idle_task + 1) 37 * 38 * @return pdPASS on success, a FreeRTOS error code otherwise. 39 */ 40 BaseType_t init(); 41 42 /** 43 * Delete the task spawned in the init function 44 */ 45 void deinit(); 46 47 const char *getChreTaskName(); 48 49 } // namespace freertos 50 } // namespace chre 51 52 #endif // CHRE_PLATFORM_FREERTOS_INIT_H_ 53