portable/oWatcom/16BitDOS/PC/portmacro.h

/*
 * FreeRTOS Kernel V10.3.1
 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * 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.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 */

#ifndef PORTMACRO_H
    #define PORTMACRO_H

    #ifdef __cplusplus
        extern "C" {
    #endif

/*-----------------------------------------------------------
 * 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         int
    #define portSTACK_TYPE    uint16_t
    #define portBASE_TYPE     short

    typedef portSTACK_TYPE   StackType_t;
    typedef short            BaseType_t;
    typedef unsigned short   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
    #endif
/*-----------------------------------------------------------*/

/* Critical section definitions.  portENTER_CRITICAL() must be defined as a
 * macro for portable.h to work properly. */
    void portLOCAL_ENTER_CRITICAL( void );
    #pragma aux portLOCAL_ENTER_CRITICAL =  "pushf" \
    "cli";
    #define portENTER_CRITICAL()    portLOCAL_ENTER_CRITICAL()

    void portEXIT_CRITICAL( void );
    #pragma aux portEXIT_CRITICAL	=		"popf";

    void portDISABLE_INTERRUPTS( void );
    #pragma aux portDISABLE_INTERRUPTS =	"cli";

    void portENABLE_INTERRUPTS( void );
    #pragma aux portENABLE_INTERRUPTS =		"sti";
/*-----------------------------------------------------------*/

/* Architecture specifics. */
    #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 )
    #define portNOP()                            __asm{ nop }
/*-----------------------------------------------------------*/

/* 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 )

    #ifdef __cplusplus
        }
    #endif


#endif /* PORTMACRO_H */