1 /*
2  * FreeRTOS Kernel V10.6.2
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 #ifndef PORTMACRO_H
30 #define PORTMACRO_H
31 
32 /* *INDENT-OFF* */
33 #ifdef __cplusplus
34     extern "C" {
35 #endif
36 /* *INDENT-ON* */
37 
38 #include "sys/alt_irq.h"
39 
40 /*-----------------------------------------------------------
41  * Port specific definitions.
42  *
43  * The settings in this file configure FreeRTOS correctly for the
44  * given hardware and compiler.
45  *
46  * These settings should not be altered.
47  *-----------------------------------------------------------
48  */
49 
50 /* Type definitions. */
51 #define portCHAR        char
52 #define portFLOAT       float
53 #define portDOUBLE      double
54 #define portLONG        long
55 #define portSHORT       short
56 #define portSTACK_TYPE  uint32_t
57 #define portBASE_TYPE   long
58 
59 typedef portSTACK_TYPE StackType_t;
60 typedef long BaseType_t;
61 typedef unsigned long UBaseType_t;
62 
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
69 
70     /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
71     not need to be guarded with a critical section. */
72     #define portTICK_TYPE_IS_ATOMIC 1
73 #else
74     #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
75 #endif
76 /*-----------------------------------------------------------*/
77 
78 /* Architecture specifics. */
79 #define portSTACK_GROWTH                ( -1 )
80 #define portTICK_PERIOD_MS              ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
81 #define portBYTE_ALIGNMENT              4
82 #define portNOP()                       asm volatile ( "NOP" )
83 #define portCRITICAL_NESTING_IN_TCB     1
84 /*-----------------------------------------------------------*/
85 
86 extern void vTaskSwitchContext( void );
87 #define portYIELD()                                 asm volatile ( "trap" );
88 #define portEND_SWITCHING_ISR( xSwitchRequired )    do { if( xSwitchRequired ) vTaskSwitchContext(); } while( 0 )
89 
90 
91 /* Include the port_asm.S file where the Context saving/restoring is defined. */
92 __asm__( "\n\t.globl    save_context" );
93 
94 /*-----------------------------------------------------------*/
95 
96 extern void vTaskEnterCritical( void );
97 extern void vTaskExitCritical( void );
98 
99 #define portDISABLE_INTERRUPTS()    alt_irq_disable_all()
100 #define portENABLE_INTERRUPTS()     alt_irq_enable_all( 0x01 );
101 #define portENTER_CRITICAL()        vTaskEnterCritical()
102 #define portEXIT_CRITICAL()         vTaskExitCritical()
103 /*-----------------------------------------------------------*/
104 
105 /* Task function macros as described on the FreeRTOS.org WEB site. */
106 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
107 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
108 
109 /* *INDENT-OFF* */
110 #ifdef __cplusplus
111     }
112 #endif
113 /* *INDENT-ON* */
114 
115 #endif /* PORTMACRO_H */
116