/*
    FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.


    ***************************************************************************
     *                                                                       *
     *    FreeRTOS tutorial books are available in pdf and paperback.        *
     *    Complete, revised, and edited pdf reference manuals are also       *
     *    available.                                                         *
     *                                                                       *
     *    Purchasing FreeRTOS documentation will not only help you, by       *
     *    ensuring you get running as quickly as possible and with an        *
     *    in-depth knowledge of how to use FreeRTOS, it will also help       *
     *    the FreeRTOS project to continue with its mission of providing     *
     *    professional grade, cross platform, de facto standard solutions    *
     *    for microcontrollers - completely free of charge!                  *
     *                                                                       *
     *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *
     *                                                                       *
     *    Thank you for using FreeRTOS, and thank you for your support!      *
     *                                                                       *
    ***************************************************************************


    This file is part of the FreeRTOS distribution.

    FreeRTOS is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License (version 2) as published by the
    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
    >>>NOTE<<< The modification to the GPL is included to allow you to
    distribute a combined work that includes FreeRTOS without being obliged to
    provide the source code for proprietary components outside of the FreeRTOS
    kernel.  FreeRTOS is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
    more details. You should have received a copy of the GNU General Public
    License and the FreeRTOS license exception along with FreeRTOS; if not it
    can be viewed here: http://www.freertos.org/a00114.html and also obtained
    by writing to Richard Barry, contact details for whom are available on the
    FreeRTOS WEB site.

    1 tab == 4 spaces!
    
    ***************************************************************************
     *                                                                       *
     *    Having a problem?  Start by reading the FAQ "My application does   *
     *    not run, what could be wrong?                                      *
     *                                                                       *
     *    http://www.FreeRTOS.org/FAQHelp.html                               *
     *                                                                       *
    ***************************************************************************

    
    http://www.FreeRTOS.org - Documentation, training, latest information, 
    license and contact details.
    
    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
    including FreeRTOS+Trace - an indispensable productivity tool.

    Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell 
    the code with commercial support, indemnification, and middleware, under 
    the OpenRTOS brand: http://www.OpenRTOS.com.  High Integrity Systems also
    provide a safety engineered and independently SIL3 certified version under 
    the SafeRTOS brand: http://www.SafeRTOS.com.
*/

#ifndef PORTMACRO_H
#define PORTMACRO_H

#ifdef __cplusplus
extern "C" {
#endif

/* System Includes. */
#include <tc1782.h>
#include <machine/intrinsics.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. */
#define portCHAR		char
#define portFLOAT		float
#define portDOUBLE		double
#define portLONG		long
#define portSHORT		short
#define portSTACK_TYPE	unsigned long
#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
/*---------------------------------------------------------------------------*/

/* Architecture specifics. */
#define portSTACK_GROWTH							( -1 )
#define portTICK_RATE_MS							( ( portTickType ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT							4
#define portNOP()									__asm volatile( " nop " )
#define portCRITICAL_NESTING_IN_TCB					1
#define portRESTORE_FIRST_TASK_PRIORITY_LEVEL		1


/*---------------------------------------------------------------------------*/

typedef struct MPU_SETTINGS { unsigned long ulNotUsed; } xMPU_SETTINGS;

/* Define away the instruction from the Restore Context Macro. */
#define portPRIVILEGE_BIT							0x0UL

#define portCCPN_MASK						( 0x000000FFUL )

extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
#define portENTER_CRITICAL()			vTaskEnterCritical()
#define portEXIT_CRITICAL()				vTaskExitCritical()
/*---------------------------------------------------------------------------*/

/* CSA Manipulation. */
#define portCSA_TO_ADDRESS( pCSA )			( ( unsigned long * )( ( ( ( pCSA ) & 0x000F0000 ) << 12 ) | ( ( ( pCSA ) & 0x0000FFFF ) << 6 ) ) )
#define portADDRESS_TO_CSA( pAddress )		( ( unsigned long )( ( ( ( (unsigned long)( pAddress ) ) & 0xF0000000 ) >> 12 ) | ( ( ( unsigned long )( pAddress ) & 0x003FFFC0 ) >> 6 ) ) )
/*---------------------------------------------------------------------------*/

#define portYIELD()								_syscall( 0 )
/* Port Restore is implicit in the platform when the function is returned from the original PSW is automatically replaced. */
#define portSYSCALL_TASK_YIELD					0
#define portSYSCALL_RAISE_PRIORITY				1
/*---------------------------------------------------------------------------*/

/* Critical section management. */

/* Set ICR.CCPN to configMAX_SYSCALL_INTERRUPT_PRIORITY. */
#define portDISABLE_INTERRUPTS()	{																									\
										unsigned long ulICR;																			\
										_disable();																						\
										ulICR = _mfcr( $ICR ); 		/* Get current ICR value. */										\
										ulICR &= ~portCCPN_MASK;	/* Clear down mask bits. */											\
										ulICR |= configMAX_SYSCALL_INTERRUPT_PRIORITY; /* Set mask bits to required priority mask. */	\
										_mtcr( $ICR, ulICR );		/* Write back updated ICR. */										\
										_isync();																						\
										_enable();																						\
									}

/* Clear ICR.CCPN to allow all interrupt priorities. */
#define portENABLE_INTERRUPTS()		{																	\
										unsigned long ulICR;											\
										_disable();														\
										ulICR = _mfcr( $ICR );		/* Get current ICR value. */		\
										ulICR &= ~portCCPN_MASK;	/* Clear down mask bits. */			\
										_mtcr( $ICR, ulICR );		/* Write back updated ICR. */		\
										_isync();														\
										_enable();														\
									}

/* Set ICR.CCPN to uxSavedMaskValue. */
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedMaskValue ) 	{																						\
																	unsigned long ulICR;																\
																	_disable();																			\
																	ulICR = _mfcr( $ICR );		/* Get current ICR value. */							\
																	ulICR &= ~portCCPN_MASK;	/* Clear down mask bits. */								\
																	ulICR |= uxSavedMaskValue;	/* Set mask bits to previously saved mask value. */		\
																	_mtcr( $ICR, ulICR );		/* Write back updated ICR. */							\
																	_isync();																			\
																	_enable();																			\
																}


/* Set ICR.CCPN to configMAX_SYSCALL_INTERRUPT_PRIORITY */
extern unsigned long uxPortSetInterruptMaskFromISR( void );
#define portSET_INTERRUPT_MASK_FROM_ISR() 	uxPortSetInterruptMaskFromISR()

/* As this port holds a CSA address in pxTopOfStack, the assert that checks the
pxTopOfStack alignment is removed. */
#define portALIGNMENT_ASSERT_pxCurrentTCB ( void )

/* Pend a priority 1 interrupt, which will take care of the context switch. */
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) 		if( xHigherPriorityTaskWoken != pdFALSE ) {	CPU_SRC0.bits.SETR = 1; _isync(); }

/*---------------------------------------------------------------------------*/

/* 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 )
/*---------------------------------------------------------------------------*/

/*
 * Port specific clean up macro required to free the CSAs that were consumed by
 * a task that has since been deleted.
 */
void vPortReclaimCSA( unsigned long *pxTCB );
#define portCLEAN_UP_TCB( pxTCB )		vPortReclaimCSA( ( unsigned long * ) ( pxTCB ) )

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */