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
38 /*-----------------------------------------------------------
39 * Port specific definitions.
41 * The settings in this file configure FreeRTOS correctly for the
42 * given hardware and compiler.
44 * These settings should not be altered.
45 *-----------------------------------------------------------
48 /* Type definitions. */
50 #define portFLOAT float
51 #define portDOUBLE double
53 #define portSHORT short
54 #define portSTACK_TYPE uint32_t
55 #define portBASE_TYPE long
57 typedef portSTACK_TYPE StackType_t;
58 typedef long BaseType_t;
59 typedef unsigned long UBaseType_t;
62 #if( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
63 typedef uint16_t TickType_t;
64 #define portMAX_DELAY ( TickType_t ) 0xffff
65 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
66 typedef uint32_t TickType_t;
67 #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
69 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
71 /*-----------------------------------------------------------*/
73 /* Hardware specifics. */
74 #define portBYTE_ALIGNMENT 4
75 #define portSTACK_GROWTH -1
76 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
77 /*-----------------------------------------------------------*/
79 uint32_t ulPortSetIPL( uint32_t );
80 #define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
81 #define portENABLE_INTERRUPTS() ulPortSetIPL( 0 )
84 extern void vPortEnterCritical( void );
85 extern void vPortExitCritical( void );
86 #define portENTER_CRITICAL() vPortEnterCritical()
87 #define portEXIT_CRITICAL() vPortExitCritical()
89 extern UBaseType_t uxPortSetInterruptMaskFromISR( void );
90 extern void vPortClearInterruptMaskFromISR( UBaseType_t );
91 #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
92 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister )
94 /*-----------------------------------------------------------*/
97 #define portNOP() asm volatile ( "nop" )
99 /* Context switches are requested using the force register. */
100 #define portYIELD() INTC_SFRC = 0x3E; portNOP(); portNOP(); portNOP(); portNOP(); portNOP()
102 /*-----------------------------------------------------------*/
104 /* Task function macros as described on the FreeRTOS.org WEB site. */
105 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) __attribute__((noreturn))
106 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
107 /*-----------------------------------------------------------*/
110 #define portEND_SWITCHING_ISR( xSwitchRequired ) \
113 if( xSwitchRequired != pdFALSE ) \
115 traceISR_EXIT_TO_SCHEDULER(); \
130 #endif /* PORTMACRO_H */