2 * FreeRTOS Kernel V11.2.0
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 /* Hardware specifics. */
44 /*-----------------------------------------------------------
45 * Port specific definitions.
47 * The settings in this file configure FreeRTOS correctly for the
48 * given hardware and compiler.
50 * These settings should not be altered.
51 *-----------------------------------------------------------
54 /* Type definitions - these are a bit legacy and not really used now, other than
55 * portSTACK_TYPE and portBASE_TYPE. */
57 #define portFLOAT float
58 #define portDOUBLE double
60 #define portSHORT short
61 #define portSTACK_TYPE uint32_t
62 #define portBASE_TYPE long
64 typedef portSTACK_TYPE StackType_t;
65 typedef long BaseType_t;
66 typedef unsigned long UBaseType_t;
69 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
70 typedef uint16_t TickType_t;
71 #define portMAX_DELAY ( TickType_t ) 0xffff
72 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
73 typedef uint32_t TickType_t;
74 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
76 /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
77 * not need to be guarded with a critical section. */
78 #define portTICK_TYPE_IS_ATOMIC 1
80 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
82 /*-----------------------------------------------------------*/
84 /* Hardware specifics. */
85 #define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
86 #define portSTACK_GROWTH -1
87 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
88 #define portNOP() __no_operation()
93 "MOV.L #0x872E0, R15 \n" \
94 "MOV.B #1, [R15] \n" \
95 "MOV.L [R15], R15 \n" \
99 #define portYIELD_FROM_ISR( x ) do { if( ( x ) != pdFALSE ) { portYIELD(); } } while( 0 )
101 /* These macros should not be called directly, but through the
102 * taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
103 * performed if configASSERT() is defined to ensure an assertion handler does not
104 * inadvertently attempt to lower the IPL when the call to assert was triggered
105 * because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
106 * when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
107 * functions are those that end in FromISR. FreeRTOS maintains a separate
108 * interrupt API to ensure API function and interrupt entry is as fast and as
109 * simple as possible. */
110 #define portENABLE_INTERRUPTS() __set_interrupt_level( ( uint8_t ) 0 )
111 #if ( configASSERT_DEFINED == 1 )
112 #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( __get_interrupt_level() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
113 #define portDISABLE_INTERRUPTS() if( __get_interrupt_level() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) __set_interrupt_level( ( uint8_t ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
115 #define portDISABLE_INTERRUPTS() __set_interrupt_level( ( uint8_t ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
118 /* Critical nesting counts are stored in the TCB. */
119 #define portCRITICAL_NESTING_IN_TCB ( 1 )
121 /* The critical nesting functions defined within tasks.c. */
122 extern void vTaskEnterCritical( void );
123 extern void vTaskExitCritical( void );
124 #define portENTER_CRITICAL() vTaskEnterCritical()
125 #define portEXIT_CRITICAL() vTaskExitCritical()
127 /* As this port allows interrupt nesting... */
128 #define portSET_INTERRUPT_MASK_FROM_ISR() __get_interrupt_level(); portDISABLE_INTERRUPTS()
129 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) __set_interrupt_level( ( uint8_t ) ( uxSavedInterruptStatus ) )
131 /* Tickless idle/low power functionality. */
132 #if configUSE_TICKLESS_IDLE == 1
133 #ifndef portSUPPRESS_TICKS_AND_SLEEP
134 extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );
135 #define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
139 /*-----------------------------------------------------------*/
141 /* Task function macros as described on the FreeRTOS.org WEB site. */
142 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
143 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
145 /* Prevent warnings of undefined behaviour: the order of volatile accesses is
146 * undefined - all warnings have been manually checked and are not an issue, and
147 * the warnings cannot be prevent by code changes without undesirable effects. */
148 #pragma diag_suppress=Pa082
156 #endif /* PORTMACRO_H */