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 #include "xexception_l.h"
40 /*-----------------------------------------------------------
41 * Port specific definitions.
43 * The settings in this file configure FreeRTOS correctly for the
44 * given hardware and compiler.
46 * These settings should not be altered.
47 *-----------------------------------------------------------
50 /* Type definitions. */
52 #define portFLOAT float
53 #define portDOUBLE double
55 #define portSHORT short
56 #define portSTACK_TYPE uint32_t
57 #define portBASE_TYPE long
59 typedef portSTACK_TYPE StackType_t;
60 typedef long BaseType_t;
61 typedef unsigned long UBaseType_t;
63 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
64 typedef uint16_t TickType_t;
65 #define portMAX_DELAY ( TickType_t ) 0xffff
66 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
67 typedef uint32_t TickType_t;
68 #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
70 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
72 /*-----------------------------------------------------------*/
74 /* This port uses the critical nesting count from the TCB rather than
75 * maintaining a separate value and then saving this value in the task stack. */
76 #define portCRITICAL_NESTING_IN_TCB 1
78 /* Interrupt control macros. */
79 #define portDISABLE_INTERRUPTS() XExc_mDisableExceptions( XEXC_NON_CRITICAL );
80 #define portENABLE_INTERRUPTS() XExc_mEnableExceptions( XEXC_NON_CRITICAL );
82 /*-----------------------------------------------------------*/
84 /* Critical section macros. */
85 void vTaskEnterCritical( void );
86 void vTaskExitCritical( void );
87 #define portENTER_CRITICAL() vTaskEnterCritical()
88 #define portEXIT_CRITICAL() vTaskExitCritical()
90 /*-----------------------------------------------------------*/
93 void vPortYield( void );
94 #define portYIELD() asm volatile ( "SC \n\t NOP" )
95 #define portYIELD_FROM_ISR() vTaskSwitchContext()
97 /*-----------------------------------------------------------*/
99 /* Hardware specifics. */
100 #define portBYTE_ALIGNMENT 8
101 #define portSTACK_GROWTH ( -1 )
102 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
103 #define portNOP() asm volatile ( "NOP" )
105 /* There are 32 * 32bit floating point registers, plus the FPSCR to save. */
106 #define portNO_FLOP_REGISTERS_TO_SAVE ( 32 + 1 )
108 /*-----------------------------------------------------------*/
110 /* Task function macros as described on the FreeRTOS.org WEB site. */
111 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
112 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
114 /* Port specific interrupt handling functions. */
115 void vPortSetupInterruptController( void );
116 BaseType_t xPortInstallInterruptHandler( uint8_t ucInterruptID,
117 XInterruptHandler pxHandler,
118 void * pvCallBackRef );
126 #endif /* PORTMACRO_H */