/*
    FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
    All rights reserved

    VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

    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.  Full license text is available on the following
    link: http://www.freertos.org/a00114.html

    ***************************************************************************
     *                                                                       *
     *    FreeRTOS provides completely free yet professionally developed,    *
     *    robust, strictly quality controlled, supported, and cross          *
     *    platform software that is more than just the market leader, it     *
     *    is the industry's de facto standard.                               *
     *                                                                       *
     *    Help yourself get started quickly while simultaneously helping     *
     *    to support the FreeRTOS project by purchasing a FreeRTOS           *
     *    tutorial book, reference manual, or both:                          *
     *    http://www.FreeRTOS.org/Documentation                              *
     *                                                                       *
    ***************************************************************************

    http://www.FreeRTOS.org/FAQHelp.html - Having a problem?  Start by reading
    the FAQ page "My application does not run, what could be wrong?".  Have you
    defined configASSERT()?

    http://www.FreeRTOS.org/support - In return for receiving this top quality
    embedded software for free we request you assist our global community by
    participating in the support forum.

    http://www.FreeRTOS.org/training - Investing in training allows your team to
    be as productive as possible as early as possible.  Now you can receive
    FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
    Ltd, and the world's leading authority on the world's leading RTOS.

    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
    including FreeRTOS+Trace - an indispensable productivity tool, a DOS
    compatible FAT file system, and our tiny thread aware UDP/IP stack.

    http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
    Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.

    http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
    Integrity Systems ltd. to sell under the OpenRTOS brand.  Low cost OpenRTOS
    licenses offer ticketed support, indemnification and commercial middleware.

    http://www.SafeRTOS.com - High Integrity Systems also provide a safety
    engineered and independently SIL3 certified version for use in safety and
    mission critical applications that require provable dependability.

    1 tab == 4 spaces!
*/

#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	uint32_t
#define portBASE_TYPE	long

typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t;
typedef unsigned long UBaseType_t;

#if( configUSE_16_BIT_TICKS == 1 )
	typedef uint16_t TickType_t;
	#define portMAX_DELAY ( TickType_t ) 0xffff
#else
	typedef uint32_t TickType_t;
	#define portMAX_DELAY ( TickType_t ) 0xffffffffUL

	/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
	not need to be guarded with a critical section. */
	#define portTICK_TYPE_IS_ATOMIC 1
#endif
/*---------------------------------------------------------------------------*/

/* Architecture specifics. */
#define portSTACK_GROWTH							( -1 )
#define portTICK_PERIOD_MS							( ( TickType_t ) 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 { uint32_t 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 )			( ( uint32_t * )( ( ( ( pCSA ) & 0x000F0000 ) << 12 ) | ( ( ( pCSA ) & 0x0000FFFF ) << 6 ) ) )
#define portADDRESS_TO_CSA( pAddress )		( ( uint32_t )( ( ( ( (uint32_t)( pAddress ) ) & 0xF0000000 ) >> 12 ) | ( ( ( uint32_t )( 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()	{																									\
										uint32_t 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()		{																	\
										uint32_t 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 ) 	{																						\
																	uint32_t 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 uint32_t uxPortSetInterruptMaskFromISR( void );
#define portSET_INTERRUPT_MASK_FROM_ISR() 	uxPortSetInterruptMaskFromISR()

/* 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( uint32_t *pxTCB );
#define portCLEAN_UP_TCB( pxTCB )		vPortReclaimCSA( ( uint32_t * ) ( pxTCB ) )

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */
