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RIOT/cpu/esp32/include/freertos/portmacro.h

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cpu: add esp32
2018-10-08 12:20:49 +02:00
/*
* Copyright (C) 2018 Gunar Schorcht
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*
* FreeRTOS to RIOT-OS adaption module for source code compatibility
*/
#ifndef FREERTOS_PORTMACRO_H
#define FREERTOS_PORTMACRO_H
#ifndef DOXYGEN
#include "stdint.h"
#include "mutex.h"
#include "irq.h"
#ifdef __cplusplus
extern "C" {
#endif
#define portBASE_TYPE int32_t
#define portUBASE_TYPE uint32_t
#define portMAX_DELAY 0xFFFFFFFF
#define portMUX_TYPE mutex_t
#define portMUX_INITIALIZER_UNLOCKED MUTEX_INIT
cpu/esp32: change of critical section handling in freertos Using a mutex for critical section handling with portENTER_CRITICAL and portEXIT_CRITICAL does not work for RIOT, as this function can also be called in the interrupt context. Therefore, the given mutex is not used. Instead, the basic default FreeRTOS mechanism for critical sections is used by simply disabling interrupts. Since context switches for the ESP32 are also based on interrupts, there is no possibility that another thread will enter the critical section once the interrupts are disabled.
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#define portENTER_CRITICAL(mux) vTaskEnterCritical(mux)
#define portEXIT_CRITICAL(mux) vTaskExitCritical(mux)
cpu: add esp32
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#define portENTER_CRITICAL_NESTED irq_disable
#define portEXIT_CRITICAL_NESTED irq_restore
#define portENTER_CRITICAL_ISR(mux) vTaskEnterCritical(mux)
#define portEXIT_CRITICAL_ISR(mux) vTaskExitCritical(mux)
#define taskENTER_CRITICAL(mux) portENTER_CRITICAL(mux)
cpu/esp32: removes additional spaces in freertos
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#define taskENTER_CRITICAL_ISR(mux) portENTER_CRITICAL_ISR(mux)
cpu: add esp32
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#define taskEXIT_CRITICAL(mux) portEXIT_CRITICAL(mux)
cpu/esp32: removes additional spaces in freertos
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#define taskEXIT_CRITICAL_ISR(mux) portEXIT_CRITICAL_ISR(mux)
cpu: add esp32
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#define portYIELD_FROM_ISR thread_yield_higher
#define portNUM_PROCESSORS 2
#define xPortGetCoreID() PRO_CPU_NUM
cpu/esp32: change of critical section handling in freertos Using a mutex for critical section handling with portENTER_CRITICAL and portEXIT_CRITICAL does not work for RIOT, as this function can also be called in the interrupt context. Therefore, the given mutex is not used. Instead, the basic default FreeRTOS mechanism for critical sections is used by simply disabling interrupts. Since context switches for the ESP32 are also based on interrupts, there is no possibility that another thread will enter the critical section once the interrupts are disabled.
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extern void vTaskEnterCritical(portMUX_TYPE *mux);
extern void vTaskExitCritical(portMUX_TYPE *mux);
cpu: add esp32
2018-10-08 12:20:49 +02:00
#ifdef __cplusplus
}
#endif
#endif /* DOXYGEN */
#endif /* FREERTOS_PORTMACRO_H */
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