/*
 * FreeRTOS Kernel <DEVELOPMENT BRANCH>
 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * https://www.FreeRTOS.org
 * https://github.com/FreeRTOS
 *
 */

#ifndef PORTMACRO_H
#define PORTMACRO_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         long
#define portDOUBLE        long
#define portLONG          long
#define portSHORT         int
#define portSTACK_TYPE    uint16_t
#define portBASE_TYPE     portSHORT

typedef portSTACK_TYPE   StackType_t;
typedef short            BaseType_t;
typedef unsigned short   UBaseType_t;

#if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
    typedef uint16_t     TickType_t;
    #define portMAX_DELAY    ( TickType_t ) 0xffff
#elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
    typedef uint32_t     TickType_t;
    #define portMAX_DELAY    ( TickType_t ) 0xffffffffUL
#else
    #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
#endif
/*-----------------------------------------------------------*/

/* Critical section management. */
#define portENTER_CRITICAL() \
    __asm { pushf }          \
    __asm { cli }            \

#define portEXIT_CRITICAL()         __asm { popf }

#define portDISABLE_INTERRUPTS()    __asm { cli }

#define portENABLE_INTERRUPTS()     __asm { sti }
/*-----------------------------------------------------------*/

/* Hardware specifics. */
#define portNOP()      __asm { nop }
#define portSTACK_GROWTH          ( -1 )
#define portSWITCH_INT_NUMBER     0x80
#define portYIELD()    __asm { int portSWITCH_INT_NUMBER }
#define portDOS_TICK_RATE         ( 18.20648 )
#define portTICK_PERIOD_MS        ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portTICKS_PER_DOS_TICK    ( ( uint16_t ) ( ( ( portDOUBLE ) configTICK_RATE_HZ / portDOS_TICK_RATE ) + 0.5 ) )
#define portINITIAL_SW            ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */
#define portBYTE_ALIGNMENT        ( 2 )
/*-----------------------------------------------------------*/

/* Compiler specifics. */
#define portINPUT_BYTE( xAddr )              inp( xAddr )
#define portOUTPUT_BYTE( xAddr, ucValue )    outp( xAddr, ucValue )

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

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

#endif /* PORTMACRO_H */