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
54 #define portSTACK_TYPE uint8_t
55 #define portBASE_TYPE char
57 #define portPOINTER_SIZE_TYPE uint16_t
59 typedef portSTACK_TYPE StackType_t;
60 typedef signed char BaseType_t;
61 typedef unsigned char UBaseType_t;
63 #if ( configUSE_16_BIT_TICKS == 1 )
64 typedef uint16_t TickType_t;
65 #define portMAX_DELAY ( TickType_t ) 0xffff
67 typedef uint32_t TickType_t;
68 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
70 /*-----------------------------------------------------------*/
72 /* Critical section management. */
73 #define portENTER_CRITICAL() \
74 asm volatile ( "in __tmp_reg__, __SREG__" ); \
75 asm volatile ( "cli" ); \
76 asm volatile ( "push __tmp_reg__" )
78 #define portEXIT_CRITICAL() \
79 asm volatile ( "pop __tmp_reg__" ); \
80 asm volatile ( "out __SREG__, __tmp_reg__" )
82 #define portDISABLE_INTERRUPTS() asm volatile ( "cli" ::);
83 #define portENABLE_INTERRUPTS() asm volatile ( "sei" ::);
84 /*-----------------------------------------------------------*/
86 /* Architecture specifics. */
87 #define portSTACK_GROWTH ( -1 )
88 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
89 #define portBYTE_ALIGNMENT 1
90 #define portNOP() asm volatile ( "nop" );
91 /*-----------------------------------------------------------*/
93 /* Kernel utilities. */
94 extern void vPortYield( void ) __attribute__( ( naked ) );
95 #define portYIELD() vPortYield()
97 extern void vPortYieldFromISR( void ) __attribute__( ( naked ) );
98 #define portYIELD_FROM_ISR() vPortYieldFromISR()
99 /*-----------------------------------------------------------*/
101 /* Task function macros as described on the FreeRTOS.org WEB site. */
102 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
103 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
111 #endif /* PORTMACRO_H */