1 /*
2  * FreeRTOS Kernel V11.1.0
3  * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
4  *
5  * SPDX-License-Identifier: MIT
6  *
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:
13  *
14  * The above copyright notice and this permission notice shall be included in all
15  * copies or substantial portions of the Software.
16  *
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.
23  *
24  * https://www.FreeRTOS.org
25  * https://github.com/FreeRTOS
26  *
27  */
28 
29 
30 #ifndef PORTMACRO_H
31 #define PORTMACRO_H
32 
33 /*-----------------------------------------------------------
34  * Port specific definitions.
35  *
36  * The settings in this file configure FreeRTOS correctly for the
37  * given hardware and compiler.
38  *
39  * These settings should not be altered.
40  *-----------------------------------------------------------
41  */
42 
43 #include <intrinsics.h>
44 
45 /* *INDENT-OFF* */
46 #ifdef __cplusplus
47     extern "C" {
48 #endif
49 /* *INDENT-ON* */
50 
51 
52 /* Type definitions. */
53 #define portCHAR          char
54 #define portFLOAT         float
55 #define portDOUBLE        double
56 #define portLONG          long
57 #define portSHORT         short
58 #define portSTACK_TYPE    uint32_t
59 #define portBASE_TYPE     long
60 
61 typedef portSTACK_TYPE   StackType_t;
62 typedef long             BaseType_t;
63 typedef unsigned long    UBaseType_t;
64 
65 
66 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
67     typedef uint16_t     TickType_t;
68     #define portMAX_DELAY    ( TickType_t ) 0xffff
69 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
70     typedef uint32_t     TickType_t;
71     #define portMAX_DELAY    ( TickType_t ) 0xffffffffUL
72 #else
73     #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
74 #endif
75 /*-----------------------------------------------------------*/
76 
77 /* Hardware specifics. */
78 #define portSTACK_GROWTH      ( -1 )
79 #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
80 #define portBYTE_ALIGNMENT    8
81 #define portYIELD()    asm ( "SWI 0" )
82 #define portNOP()      asm ( "NOP" )
83 /*-----------------------------------------------------------*/
84 
85 /* Critical section handling. */
86 __arm __interwork void vPortDisableInterruptsFromThumb( void );
87 __arm __interwork void vPortEnableInterruptsFromThumb( void );
88 __arm __interwork void vPortEnterCritical( void );
89 __arm __interwork void vPortExitCritical( void );
90 
91 #define portDISABLE_INTERRUPTS()    __disable_interrupt()
92 #define portENABLE_INTERRUPTS()     __enable_interrupt()
93 #define portENTER_CRITICAL()        vPortEnterCritical()
94 #define portEXIT_CRITICAL()         vPortExitCritical()
95 /*-----------------------------------------------------------*/
96 
97 /* Task utilities. */
98 #define portEND_SWITCHING_ISR( xSwitchRequired ) \
99     {                                            \
100         extern void vTaskSwitchContext( void );  \
101                                                  \
102         if( xSwitchRequired )                    \
103         {                                        \
104             traceISR_EXIT_TO_SCHEDULER();        \
105             vTaskSwitchContext();                \
106         }                                        \
107         else                                     \
108         {                                        \
109             traceISR_EXIT();                     \
110         }                                        \
111     }
112 /*-----------------------------------------------------------*/
113 
114 /* EIC utilities. */
115 #define portEIC_CICR_ADDR    *( ( uint32_t * ) 0xFFFFF804 )
116 #define portEIC_IPR_ADDR     *( ( uint32_t * ) 0xFFFFF840 )
117 #define portCLEAR_EIC()    portEIC_IPR_ADDR = 0x01 << portEIC_CICR_ADDR
118 
119 /*-----------------------------------------------------------*/
120 
121 /* Task function macros as described on the FreeRTOS.org WEB site. */
122 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters )    void vFunction( void * pvParameters )
123 #define portTASK_FUNCTION( vFunction, pvParameters )          void vFunction( void * pvParameters )
124 
125 /* *INDENT-OFF* */
126 #ifdef __cplusplus
127     }
128 #endif
129 /* *INDENT-ON* */
130 
131 #endif /* PORTMACRO_H */
132