124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
/**
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* @file usb_osal_freertos.c
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* @brief
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*
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* Copyright (c) 2022 sakumisu
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "usb_osal.h"
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#include <FreeRTOS.h>
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#include "semphr.h"
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usb_osal_thread_t usb_osal_thread_create(const char *name, uint32_t stack_size, uint32_t prio, usb_thread_entry_t entry, void *args)
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{
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TaskHandle_t htask = NULL;
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stack_size /= sizeof(StackType_t);
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xTaskCreate(entry, name, stack_size, args, prio, &htask);
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return (usb_osal_thread_t)htask;
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}
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void usb_osal_thread_suspend(usb_osal_thread_t thread)
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{
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vTaskSuspend(thread);
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}
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void usb_osal_thread_resume(usb_osal_thread_t thread)
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{
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vTaskResume(thread);
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}
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usb_osal_sem_t usb_osal_sem_create(uint32_t initial_count)
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{
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return (usb_osal_sem_t)xSemaphoreCreateCounting(1, initial_count);
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}
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void usb_osal_sem_delete(usb_osal_sem_t sem)
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{
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vSemaphoreDelete((SemaphoreHandle_t)sem);
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}
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int usb_osal_sem_take(usb_osal_sem_t sem)
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{
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return (xSemaphoreTake((SemaphoreHandle_t)sem, portMAX_DELAY) == pdPASS) ? 0 : -1;
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}
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int usb_osal_sem_give(usb_osal_sem_t sem)
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{
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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uint32_t intstatus = 0;
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int ret;
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#ifdef __riscv
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/* Obtain the level of the currently executing interrupt. */
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__asm volatile("csrr %0, mintstatus" : "=r"(intstatus)::"memory");
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#else
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/* Obtain the number of the currently executing interrupt. */
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__asm volatile ( "mrs %0, ipsr" : "=r" ( intstatus )::"memory" );
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#endif
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if (intstatus == 0) {
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ret = xSemaphoreGive((SemaphoreHandle_t)sem);
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} else {
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ret = xSemaphoreGiveFromISR((SemaphoreHandle_t)sem, &xHigherPriorityTaskWoken);
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if (ret == pdPASS) {
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portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
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}
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}
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return (ret == pdPASS) ? 0 : -1;
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}
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usb_osal_mutex_t usb_osal_mutex_create(void)
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{
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return (usb_osal_mutex_t)xSemaphoreCreateMutex();
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}
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void usb_osal_mutex_delete(usb_osal_mutex_t mutex)
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{
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vSemaphoreDelete((SemaphoreHandle_t)mutex);
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}
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int usb_osal_mutex_take(usb_osal_mutex_t mutex)
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{
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return (xSemaphoreTake((SemaphoreHandle_t)mutex, portMAX_DELAY) == pdPASS) ? 0 : -1;
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}
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int usb_osal_mutex_give(usb_osal_mutex_t mutex)
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{
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return (xSemaphoreGive((SemaphoreHandle_t)mutex) == pdPASS) ? 0 : -1;
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}
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uint32_t usb_osal_enter_critical_section(void)
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{
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taskENTER_CRITICAL();
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return 1;
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}
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void usb_osal_leave_critical_section(uint32_t flag)
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{
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taskEXIT_CRITICAL();
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}
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void usb_osal_msleep(uint32_t delay)
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{
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vTaskDelay(pdMS_TO_TICKS(delay));
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}
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uint32_t usb_osal_get_tick(void)
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{
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return xTaskGetTickCount();
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}
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