2 * FreeRTOS Kernel V10.5.0
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
37 /*-----------------------------------------------------------
38 * Port specific definitions.
40 * The settings in this file configure FreeRTOS correctly for the
41 * given hardware and compiler.
43 * These settings should not be altered.
44 *-----------------------------------------------------------
47 /* When the FIT configurator or the Smart Configurator is used, platform.h has to be
49 #ifndef configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H
50 #define configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H 0
53 /* If configUSE_TASK_DPFPU_SUPPORT is set to 1 (or undefined) then each task will
54 * be created without a DPFPU context, and a task must call vTaskUsesDPFPU() before
55 * making use of any DPFPU registers. If configUSE_TASK_DPFPU_SUPPORT is set to 2 then
56 * tasks are created with a DPFPU context by default, and calling vTaskUsesDPFPU() has
57 * no effect. If configUSE_TASK_DPFPU_SUPPORT is set to 0 then tasks never take care
58 * of any DPFPU context (even if DPFPU registers are used). */
59 #ifndef configUSE_TASK_DPFPU_SUPPORT
60 #define configUSE_TASK_DPFPU_SUPPORT 1
63 /*-----------------------------------------------------------*/
65 /* Type definitions - these are a bit legacy and not really used now, other than
66 * portSTACK_TYPE and portBASE_TYPE. */
68 #define portFLOAT float
69 #define portDOUBLE double
71 #define portSHORT short
72 #define portSTACK_TYPE uint32_t
73 #define portBASE_TYPE long
75 typedef portSTACK_TYPE StackType_t;
76 typedef long BaseType_t;
77 typedef unsigned long UBaseType_t;
79 #if ( configUSE_16_BIT_TICKS == 1 )
80 typedef uint16_t TickType_t;
81 #define portMAX_DELAY ( TickType_t ) 0xffff
83 typedef uint32_t TickType_t;
84 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
86 /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
87 * not need to be guarded with a critical section. */
88 #define portTICK_TYPE_IS_ATOMIC 1
91 /*-----------------------------------------------------------*/
93 /* Hardware specifics. */
94 #define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
95 #define portSTACK_GROWTH -1
96 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
97 #define portNOP() __asm volatile ( "NOP" )
99 /* Yield equivalent to "*portITU_SWINTR = 0x01; ( void ) *portITU_SWINTR;"
100 * where portITU_SWINTR is the location of the software interrupt register
101 * (0x000872E0). Don't rely on the assembler to select a register, so instead
102 * save and restore clobbered registers manually. */
103 #define portYIELD() \
107 "MOV.L #0x872E0, R10 \n"\
108 "MOV.B #0x1, [R10] \n"\
109 "CMP [R10].UB, R10 \n"\
114 #define portYIELD_FROM_ISR( x ) do { if( ( x ) != pdFALSE ) portYIELD(); } while( 0 )
116 /* Workaround to reduce errors/warnings caused by e2 studio CDT's INDEXER and CODAN. */
117 #ifdef __CDT_PARSER__
121 #ifndef __attribute__
122 #define __attribute__( ... )
126 /* These macros should not be called directly, but through the
127 * taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
128 * performed if configASSERT() is defined to ensure an assertion handler does not
129 * inadvertently attempt to lower the IPL when the call to assert was triggered
130 * because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
131 * when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
132 * functions are those that end in FromISR. FreeRTOS maintains a separate
133 * interrupt API to ensure API function and interrupt entry is as fast and as
134 * simple as possible. */
135 #define portENABLE_INTERRUPTS() __asm volatile ( "MVTIPL #0")
137 #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( ulPortGetIPL() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
138 #define portDISABLE_INTERRUPTS() if( ulPortGetIPL() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) __asm volatile ( "MVTIPL %0"::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
140 #define portDISABLE_INTERRUPTS() __asm volatile ( "MVTIPL %0"::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
143 /* Critical nesting counts are stored in the TCB. */
144 #define portCRITICAL_NESTING_IN_TCB ( 1 )
146 /* The critical nesting functions defined within tasks.c. */
147 extern void vTaskEnterCritical( void );
148 extern void vTaskExitCritical( void );
149 #define portENTER_CRITICAL() vTaskEnterCritical()
150 #define portEXIT_CRITICAL() vTaskExitCritical()
152 /* As this port allows interrupt nesting... */
153 uint32_t ulPortGetIPL( void ) __attribute__( ( naked ) );
154 void vPortSetIPL( uint32_t ulNewIPL ) __attribute__( ( naked ) );
155 #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortGetIPL(); portDISABLE_INTERRUPTS()
156 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) vPortSetIPL( uxSavedInterruptStatus )
158 /*-----------------------------------------------------------*/
160 /* Task function macros as described on the FreeRTOS.org WEB site. */
161 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
162 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
164 /*-----------------------------------------------------------*/
166 /* If configUSE_TASK_DPFPU_SUPPORT is set to 1 (or left undefined) then tasks are
167 * created without a DPFPU context and must call vPortTaskUsesDPFPU() to give
168 * themselves a DPFPU context before using any DPFPU instructions. If
169 * configUSE_TASK_DPFPU_SUPPORT is set to 2 then all tasks will have a DPFPU context
171 #if( configUSE_TASK_DPFPU_SUPPORT == 1 )
172 void vPortTaskUsesDPFPU( void );
174 /* Each task has a DPFPU context already, so define this function away to
175 * nothing to prevent it being called accidentally. */
176 #define vPortTaskUsesDPFPU()
178 #define portTASK_USES_DPFPU() vPortTaskUsesDPFPU()
180 /* Definition to allow compatibility with existing FreeRTOS Demo using flop.c. */
181 #define portTASK_USES_FLOATING_POINT() vPortTaskUsesDPFPU()
187 #endif /* PORTMACRO_H */