FreeRTOS-Kernel/FreeRTOS/Source/portable/Renesas/RX600/portmacro.h

/*
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    ***************************************************************************
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*/


#ifndef PORTMACRO_H
#define PORTMACRO_H

#ifdef __cplusplus
extern "C" {
#endif

/* Hardware specifics. */
#include "machine.h"

/*-----------------------------------------------------------
 * Port specific definitions.  
 *
 * The settings in this file configure FreeRTOS correctly for the
 * given hardware and compiler.
 *
 * These settings should not be altered.
 *-----------------------------------------------------------
 */

/* Type definitions - these are a bit legacy and not really used now, other than
portSTACK_TYPE and portBASE_TYPE. */
#define portCHAR		char
#define portFLOAT		float
#define portDOUBLE		double
#define portLONG		long
#define portSHORT		short
#define portSTACK_TYPE	unsigned portLONG
#define portBASE_TYPE	long

#if( configUSE_16_BIT_TICKS == 1 )
	typedef unsigned portSHORT portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffff
#else
	typedef unsigned portLONG portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffffffff
#endif
/*-----------------------------------------------------------*/

/* Hardware specifics. */
#define portBYTE_ALIGNMENT				8	/* Could make four, according to manual. */
#define portSTACK_GROWTH				-1
#define portTICK_RATE_MS				( ( portTickType ) 1000 / configTICK_RATE_HZ )		
#define portNOP()						nop()

#ifdef configASSERT
	#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( get_ipl() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
#endif

#pragma inline_asm vPortYield
static void vPortYield( void )
{
	/* Save clobbered register - may not actually be necessary if inline asm
	functions are considered to use the same rules as function calls by the
	compiler. */
	PUSH.L R5
	/* Set ITU SWINTR. */
	MOV.L #553696, R5
	MOV.B #1, [R5]
	/* Read back to ensure the value is taken before proceeding. */
	MOV.L [R5], R5
	/* Restore clobbered register to its previous value. */
	POP R5
}
#define portYIELD()	vPortYield()
#define portYIELD_FROM_ISR( x )	if( x != pdFALSE ) portYIELD()

/*
 * These macros should be called directly, but through the taskENTER_CRITICAL()
 * and taskEXIT_CRITICAL() macros.
 */
#define portENABLE_INTERRUPTS() 	set_ipl( 0 )
#define portDISABLE_INTERRUPTS() 	set_ipl( configMAX_SYSCALL_INTERRUPT_PRIORITY )

/* Critical nesting counts are stored in the TCB. */
#define portCRITICAL_NESTING_IN_TCB ( 1 )

/* The critical nesting functions defined within tasks.c. */
extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
#define portENTER_CRITICAL()	vTaskEnterCritical()
#define portEXIT_CRITICAL()		vTaskExitCritical()

/* As this port allows interrupt nesting... */
#define portSET_INTERRUPT_MASK_FROM_ISR() get_ipl(); set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) set_ipl( ( long ) uxSavedInterruptStatus )

/*-----------------------------------------------------------*/

/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */