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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef _TUSB_OSAL_FREERTOS_H_
#define _TUSB_OSAL_FREERTOS_H_
// FreeRTOS Headers
#include "FreeRTOS.h"
#include "semphr.h"
#include "queue.h"
#include "task.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// TASK API
//--------------------------------------------------------------------+
static inline void osal_task_delay(uint32_t msec)
{
vTaskDelay( pdMS_TO_TICKS(msec) );
}
//--------------------------------------------------------------------+
// Semaphore API
//--------------------------------------------------------------------+
typedef StaticSemaphore_t osal_semaphore_def_t;
typedef SemaphoreHandle_t osal_semaphore_t;
static inline osal_semaphore_t osal_semaphore_create(osal_semaphore_def_t* semdef)
{
return xSemaphoreCreateBinaryStatic(semdef);
}
static inline bool osal_semaphore_post(osal_semaphore_t sem_hdl, bool in_isr)
{
if ( !in_isr )
{
return xSemaphoreGive(sem_hdl) != 0;
}
else
{
BaseType_t xHigherPriorityTaskWoken;
BaseType_t res = xSemaphoreGiveFromISR(sem_hdl, &xHigherPriorityTaskWoken);
#if CFG_TUSB_MCU == OPT_MCU_ESP32S2 || CFG_TUSB_MCU == OPT_MCU_ESP32S3
if ( xHigherPriorityTaskWoken ) portYIELD_FROM_ISR();
#else
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
#endif
return res != 0;
}
}
static inline bool osal_semaphore_wait (osal_semaphore_t sem_hdl, uint32_t msec)
{
uint32_t const ticks = (msec == OSAL_TIMEOUT_WAIT_FOREVER) ? portMAX_DELAY : pdMS_TO_TICKS(msec);
return xSemaphoreTake(sem_hdl, ticks);
}
static inline void osal_semaphore_reset(osal_semaphore_t const sem_hdl)
{
xQueueReset(sem_hdl);
}
//--------------------------------------------------------------------+
// MUTEX API (priority inheritance)
//--------------------------------------------------------------------+
typedef StaticSemaphore_t osal_mutex_def_t;
typedef SemaphoreHandle_t osal_mutex_t;
static inline osal_mutex_t osal_mutex_create(osal_mutex_def_t* mdef)
{
return xSemaphoreCreateMutexStatic(mdef);
}
static inline bool osal_mutex_lock (osal_mutex_t mutex_hdl, uint32_t msec)
{
return osal_semaphore_wait(mutex_hdl, msec);
}
static inline bool osal_mutex_unlock(osal_mutex_t mutex_hdl)
{
return xSemaphoreGive(mutex_hdl);
}
//--------------------------------------------------------------------+
// QUEUE API
//--------------------------------------------------------------------+
// role device/host is used by OS NONE for mutex (disable usb isr) only
#define OSAL_QUEUE_DEF(_role, _name, _depth, _type) \
static _type _name##_##buf[_depth];\
osal_queue_def_t _name = { .depth = _depth, .item_sz = sizeof(_type), .buf = _name##_##buf };
typedef struct
{
uint16_t depth;
uint16_t item_sz;
void* buf;
StaticQueue_t sq;
}osal_queue_def_t;
typedef QueueHandle_t osal_queue_t;
static inline osal_queue_t osal_queue_create(osal_queue_def_t* qdef)
{
return xQueueCreateStatic(qdef->depth, qdef->item_sz, (uint8_t*) qdef->buf, &qdef->sq);
}
static inline bool osal_queue_receive(osal_queue_t qhdl, void* data)
{
return xQueueReceive(qhdl, data, portMAX_DELAY);
}
static inline bool osal_queue_send(osal_queue_t qhdl, void const * data, bool in_isr)
{
if ( !in_isr )
{
return xQueueSendToBack(qhdl, data, OSAL_TIMEOUT_WAIT_FOREVER) != 0;
}
else
{
BaseType_t xHigherPriorityTaskWoken;
BaseType_t res = xQueueSendToBackFromISR(qhdl, data, &xHigherPriorityTaskWoken);
#if CFG_TUSB_MCU == OPT_MCU_ESP32S2 || CFG_TUSB_MCU == OPT_MCU_ESP32S3
if ( xHigherPriorityTaskWoken ) portYIELD_FROM_ISR();
#else
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
#endif
return res != 0;
}
}
static inline bool osal_queue_empty(osal_queue_t qhdl)
{
return uxQueueMessagesWaiting(qhdl) == 0;
}
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_OSAL_FREERTOS_H_ */
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