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xiaozhengsheng
216
external/freertos/portable/CMSIS/nrf51/portmacro_cmsis.h
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external/freertos/portable/CMSIS/nrf51/portmacro_cmsis.h
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/*
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* FreeRTOS Kernel V10.0.0
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* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software. If you wish to use our Amazon
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* FreeRTOS name, please do so in a fair use way that does not cause confusion.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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#ifndef PORTMACRO_CMSIS_H
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#define PORTMACRO_CMSIS_H
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#include "app_util.h"
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#include "nordic_common.h"
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#ifdef SOFTDEVICE_PRESENT
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#include "nrf_soc.h"
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#include "softdevice_handler.h"
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#include "app_error.h"
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#include "app_util_platform.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*-----------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the
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* given hardware and compiler.
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*
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* These settings should not be altered.
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*-----------------------------------------------------------
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*/
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/* Type definitions. */
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE long
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typedef portSTACK_TYPE StackType_t;
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typedef long BaseType_t;
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typedef uint32_t UBaseType_t; /* to provide compatibility with CMSIS */
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#if ( configUSE_16_BIT_TICKS == 1 )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#else
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typedef uint32_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
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not need to be guarded with a critical section. */
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#define portTICK_TYPE_IS_ATOMIC 1
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#endif
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/*-----------------------------------------------------------*/
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/* Architecture specifics. */
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#define portSTACK_GROWTH ( -1 )
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portBYTE_ALIGNMENT 8
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/* RTC register */
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#define portNRF_RTC_REG NRF_RTC1
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/* IRQn used by the selected RTC */
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#define portNRF_RTC_IRQn RTC1_IRQn
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/* Constants required to manipulate the NVIC. */
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#define portNRF_RTC_PRESCALER ( (uint32_t) (ROUNDED_DIV(configSYSTICK_CLOCK_HZ, configTICK_RATE_HZ) - 1) )
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/* Maximum RTC ticks */
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#define portNRF_RTC_MAXTICKS ((1U<<24)-1U)
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/*-----------------------------------------------------------*/
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/* Internal auxiliary macro */
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#define portPendSVSchedule() do \
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{ \
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/* Set a PendSV to request a context switch. */ \
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SCB->ICSR = SCB_ICSR_PENDSVSET_Msk; \
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__SEV(); \
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/* Barriers are normally not required but do ensure the code is completely \
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within the specified behaviour for the architecture. */ \
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__DSB(); \
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__ISB(); \
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}while (0)
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/* Scheduler utilities. */
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#define portYIELD() vPortTaskYield()
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#define portEND_SWITCHING_ISR( xSwitchRequired ) if ( (xSwitchRequired) != pdFALSE ) { portPendSVSchedule(); }
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#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
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/*-----------------------------------------------------------*/
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/* Critical section management. */
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extern void vPortEnterCritical( void );
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extern void vPortExitCritical( void );
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extern void vPortTaskYield( void );
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#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortDisableISR()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortRestoreISR(x)
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#define portDISABLE_INTERRUPTS() vPortDisableISR()
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#define portENABLE_INTERRUPTS() vPortEnableISR()
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#define portENTER_CRITICAL() vPortEnterCritical()
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#define portEXIT_CRITICAL() vPortExitCritical()
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. These are
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not necessary for to use this port. They are defined so the common demo files
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(which build with all the ports) will build. */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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/*-----------------------------------------------------------*/
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/* Tickless idle/low power functionality. */
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#ifndef portSUPPRESS_TICKS_AND_SLEEP
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extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );
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#define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
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#endif
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/*-----------------------------------------------------------*/
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__STATIC_INLINE void vPortDisableISR(void)
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{
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#ifdef SOFTDEVICE_PRESENT
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uint8_t dummy = 0;
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uint32_t err_code = sd_nvic_critical_region_enter(&dummy);
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APP_ERROR_CHECK(err_code);
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#else
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__disable_irq();
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#endif
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}
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__STATIC_INLINE void vPortEnableISR(void)
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{
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#ifdef SOFTDEVICE_PRESENT
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uint32_t err_code = sd_nvic_critical_region_exit(0);
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APP_ERROR_CHECK(err_code);
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#else
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__enable_irq();
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#endif
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}
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/* Union used to remember current ISR state.
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* It concentrates information about ISR state and internal SD state into 32 bit variable. */
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typedef union
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{
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uint32_t u32; //< 32 bit access to the variable
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uint8_t sd_nested; //< Soft device nested element
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bool irq_nested; //< Global was disabled
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}portISRState_t;
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__STATIC_INLINE uint32_t ulPortDisableISR(void)
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{
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portISRState_t isrs = {0};
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#ifdef SOFTDEVICE_PRESENT
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uint32_t err_code = sd_nvic_critical_region_enter(&isrs.sd_nested);
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APP_ERROR_CHECK(err_code);
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#else
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uint32_t primask = __get_PRIMASK();
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if(primask == 0)
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{
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__disable_irq();
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}
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else
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{
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isrs.irq_nested = true;
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}
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#endif
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return isrs.u32;
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}
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__STATIC_INLINE void vPortRestoreISR(uint32_t state)
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{
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portISRState_t isrs = {state};
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#ifdef SOFTDEVICE_PRESENT
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uint32_t err_code = sd_nvic_critical_region_exit(isrs.sd_nested);
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APP_ERROR_CHECK(err_code);
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#else
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if(!isrs.irq_nested)
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{
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__enable_irq();
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}
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#endif
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}
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/*-----------------------------------------------------------*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_CMSIS_H */
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