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/*
* osal_freeRTOS.h
*
* Created on: Feb 2, 2013
* Author: hathach
*/
/*
* Software License Agreement (BSD License)
* Copyright (c) 2012, hathach (tinyusb.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the tiny usb stack.
*/
/** \file
* \brief TBD
*
* \note TBD
*/
/** \ingroup TBD
* \defgroup TBD
* \brief TBD
*
* @{
*/
#ifndef _TUSB_OSAL_FREERTOS_H_
#define _TUSB_OSAL_FREERTOS_H_
#include "osal_common.h"
//------------- FreeRTOS Headers -------------//
#include "FreeRTOS.h"
#include "semphr.h"
#include "queue.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// TICK API
//--------------------------------------------------------------------+
#define osal_tick_get xTaskGetTickCount
//--------------------------------------------------------------------+
// TASK API
//--------------------------------------------------------------------+
#define OSAL_TASK_LOOP_BEGIN \
while(1) {
#define OSAL_TASK_LOOP_END \
}
// TODO FreeRTOS TASK_ASSERT need to omit do while to get continue statement works.
#define TASK_ASSERT(condition)
#define TASK_ASSERT_STATUS(sts)
//--------------------------------------------------------------------+
// Semaphore API
//--------------------------------------------------------------------+
#define OSAL_SEM_DEF(name)
typedef xSemaphoreHandle osal_semaphore_handle_t;
// create FreeRTOS binary semaphore with zero as init value TODO: omit semaphore take from vSemaphoreCreateBinary API, should double checks this
#define osal_semaphore_create(x) \
xQueueGenericCreate( ( unsigned portBASE_TYPE ) 1, semSEMAPHORE_QUEUE_ITEM_LENGTH, queueQUEUE_TYPE_BINARY_SEMAPHORE )
static inline tusb_error_t osal_semaphore_post(osal_semaphore_handle_t const sem_hdl) ATTR_ALWAYS_INLINE;
static inline tusb_error_t osal_semaphore_post(osal_semaphore_handle_t const sem_hdl)
{
portBASE_TYPE taskWaken;
return (xSemaphoreGiveFromISR(sem_hdl, &taskWaken) == pdTRUE) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_SEMAPHORE_FAILED;
}
static inline void osal_semaphore_wait(osal_semaphore_handle_t const sem_hdl, uint32_t msec, tusb_error_t *p_error) ATTR_ALWAYS_INLINE;
static inline void osal_semaphore_wait(osal_semaphore_handle_t const sem_hdl, uint32_t msec, tusb_error_t *p_error)
{
(*p_error) = ( xSemaphoreTake(sem_hdl, osal_tick_from_msec(msec)) == pdPASS ) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_TIMEOUT;
}
//--------------------------------------------------------------------+
// QUEUE API
//--------------------------------------------------------------------+
typedef struct{
uint8_t const depth ; ///< buffer size
} osal_queue_t;
typedef xQueueHandle osal_queue_handle_t;
#define OSAL_QUEUE_DEF(name, queue_depth, type)\
osal_queue_t name = {\
.depth = queue_depth\
}
#define osal_queue_create(p_queue) \
xQueueCreate((p_queue)->depth, sizeof(uint32_t))
static inline void osal_queue_receive (osal_queue_handle_t const queue_hdl, uint32_t *p_data, uint32_t msec, tusb_error_t *p_error) ATTR_ALWAYS_INLINE;
static inline void osal_queue_receive (osal_queue_handle_t const queue_hdl, uint32_t *p_data, uint32_t msec, tusb_error_t *p_error)
{
(*p_error) = ( xQueueReceive(queue_hdl, p_data, osal_tick_from_msec(msec)) == pdPASS ) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_TIMEOUT;
}
static inline tusb_error_t osal_queue_send(osal_queue_handle_t const queue_hdl, uint32_t data) ATTR_ALWAYS_INLINE;
static inline tusb_error_t osal_queue_send(osal_queue_handle_t const queue_hdl, uint32_t data)
{
portBASE_TYPE taskWaken;
return ( xQueueSendFromISR(queue_hdl, &data, &taskWaken) == pdTRUE ) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_QUEUE_FAILED;
}
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_OSAL_FREERTOS_H_ */
/** @} */
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