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
33 #include <intrinsics.h>
41 /*-----------------------------------------------------------
42 * Port specific definitions.
44 * The settings in this file configure FreeRTOS correctly for the
45 * given hardware and compiler.
47 * These settings should not be altered.
48 *-----------------------------------------------------------
51 /* Type definitions. */
53 #define portFLOAT float
54 #define portDOUBLE double
56 #define portSHORT short
57 #define portSTACK_TYPE uint32_t
58 #define portBASE_TYPE long
60 typedef portSTACK_TYPE StackType_t;
61 typedef long BaseType_t;
62 typedef unsigned long UBaseType_t;
65 #if( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
66 typedef uint16_t TickType_t;
67 #define portMAX_DELAY ( TickType_t ) 0xffff
68 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
69 typedef uint32_t TickType_t;
70 #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
72 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
74 /*-----------------------------------------------------------*/
76 /* Hardware specifics. */
77 #define portSTACK_GROWTH ( -1 )
78 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
79 #define portBYTE_ALIGNMENT 8
80 #define portYIELD() asm ( "SWI 0" )
81 #define portNOP() asm ( "NOP" )
82 /*-----------------------------------------------------------*/
84 /* Critical section handling. */
85 __arm __interwork void vPortDisableInterruptsFromThumb( void );
86 __arm __interwork void vPortEnableInterruptsFromThumb( void );
87 __arm __interwork void vPortEnterCritical( void );
88 __arm __interwork void vPortExitCritical( void );
90 #define portDISABLE_INTERRUPTS() __disable_interrupt()
91 #define portENABLE_INTERRUPTS() __enable_interrupt()
92 #define portENTER_CRITICAL() vPortEnterCritical()
93 #define portEXIT_CRITICAL() vPortExitCritical()
94 /*-----------------------------------------------------------*/
97 #define portEND_SWITCHING_ISR( xSwitchRequired ) \
99 extern void vTaskSwitchContext( void ); \
101 if( xSwitchRequired ) \
103 vTaskSwitchContext(); \
106 /*-----------------------------------------------------------*/
108 /* Task function macros as described on the FreeRTOS.org WEB site. */
109 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
110 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
118 #endif /* PORTMACRO_H */