2 * FreeRTOS Kernel <DEVELOPMENT BRANCH>
3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * SPDX-License-Identifier: MIT
7 * Permission is hereby granted, free of charge, to any person obtaining a copy of
8 * this software and associated documentation files (the "Software"), to deal in
9 * the Software without restriction, including without limitation the rights to
10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
11 * the Software, and to permit persons to whom the Software is furnished to do so,
12 * subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in all
15 * copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
19 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
20 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 * https://www.FreeRTOS.org
25 * https://github.com/FreeRTOS
32 /*-----------------------------------------------------------
33 * Port specific definitions.
35 * The settings in this file configure FreeRTOS correctly for the
36 * given hardware and compiler.
38 * These settings should not be altered.
39 *-----------------------------------------------------------
42 /* Type definitions. */
44 #define portFLOAT long
45 #define portDOUBLE long
48 #define portSTACK_TYPE uint16_t
49 #define portBASE_TYPE portSHORT
51 typedef portSTACK_TYPE StackType_t;
52 typedef short BaseType_t;
53 typedef unsigned short UBaseType_t;
55 #if( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
56 typedef uint16_t TickType_t;
57 #define portMAX_DELAY ( TickType_t ) 0xffff
58 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
59 typedef uint32_t TickType_t;
60 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
62 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
64 /*-----------------------------------------------------------*/
66 /* Critical section management. */
67 #define portENTER_CRITICAL() __asm{ pushf } \
70 #define portEXIT_CRITICAL() __asm{ popf }
72 #define portDISABLE_INTERRUPTS() __asm{ cli }
74 #define portENABLE_INTERRUPTS() __asm{ sti }
75 /*-----------------------------------------------------------*/
77 /* Hardware specifics. */
78 #define portNOP() __asm{ nop }
79 #define portSTACK_GROWTH ( -1 )
80 #define portSWITCH_INT_NUMBER 0x80
81 #define portYIELD() __asm{ int portSWITCH_INT_NUMBER }
82 #define portDOS_TICK_RATE ( 18.20648 )
83 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
84 #define portTICKS_PER_DOS_TICK ( ( uint16_t ) ( ( ( portDOUBLE ) configTICK_RATE_HZ / portDOS_TICK_RATE ) + 0.5 ) )
85 #define portINITIAL_SW ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */
86 #define portBYTE_ALIGNMENT ( 2 )
87 /*-----------------------------------------------------------*/
89 /* Compiler specifics. */
90 #define portINPUT_BYTE( xAddr ) inp( xAddr )
91 #define portOUTPUT_BYTE( xAddr, ucValue ) outp( xAddr, ucValue )
93 /*-----------------------------------------------------------*/
95 /* Task function macros as described on the FreeRTOS.org WEB site. */
96 #define portTASK_FUNCTION_PROTO( vTaskFunction, pvParameters ) void vTaskFunction( void *pvParameters )
97 #define portTASK_FUNCTION( vTaskFunction, pvParameters ) void vTaskFunction( void *pvParameters )
99 #endif /* PORTMACRO_H */