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 #ifndef PORTMACRO_H
30 #define PORTMACRO_H
31 
32 /* *INDENT-OFF* */
33 #ifdef __cplusplus
34     extern "C" {
35 #endif
36 /* *INDENT-ON* */
37 
38 /*-----------------------------------------------------------
39  * Port specific definitions.
40  *
41  * The settings in this file configure FreeRTOS correctly for the
42  * given hardware and compiler.
43  *
44  * These settings should not be altered.
45  *-----------------------------------------------------------
46  */
47 
48 /* Type definitions. */
49 #define portCHAR          char
50 #define portFLOAT         float
51 #define portDOUBLE        double
52 #define portLONG          long
53 #define portSHORT         short
54 #define portSTACK_TYPE    uint32_t
55 #define portBASE_TYPE     long
56 
57 typedef portSTACK_TYPE   StackType_t;
58 typedef long             BaseType_t;
59 typedef unsigned long    UBaseType_t;
60 
61 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
62     typedef uint16_t     TickType_t;
63     #define portMAX_DELAY              ( TickType_t ) 0xffff
64 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
65     typedef uint32_t     TickType_t;
66     #define portMAX_DELAY              ( TickType_t ) 0xffffffffUL
67 
68 /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
69  * not need to be guarded with a critical section. */
70     #define portTICK_TYPE_IS_ATOMIC    1
71 #else
72     #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
73 #endif
74 /*-----------------------------------------------------------*/
75 
76 /* Interrupt control macros. */
77 void microblaze_disable_interrupts( void );
78 void microblaze_enable_interrupts( void );
79 #define portDISABLE_INTERRUPTS()    microblaze_disable_interrupts()
80 #define portENABLE_INTERRUPTS()     microblaze_enable_interrupts()
81 /*-----------------------------------------------------------*/
82 
83 /* Critical section macros. */
84 void vPortEnterCritical( void );
85 void vPortExitCritical( void );
86 #define portENTER_CRITICAL()                  \
87     {                                         \
88         extern UBaseType_t uxCriticalNesting; \
89         microblaze_disable_interrupts();      \
90         uxCriticalNesting++;                  \
91     }
92 
93 #define portEXIT_CRITICAL()                      \
94     {                                            \
95         extern UBaseType_t uxCriticalNesting;    \
96         /* Interrupts are disabled, so we can */ \
97         /* access the variable directly. */      \
98         uxCriticalNesting--;                     \
99         if( uxCriticalNesting == 0 )             \
100         {                                        \
101             /* The nesting has unwound and we \
102              * can enable interrupts again. */ \
103             portENABLE_INTERRUPTS();           \
104         }                                      \
105     }
106 
107 /*-----------------------------------------------------------*/
108 
109 /* Task utilities. */
110 void vPortYield( void );
111 #define portYIELD()             vPortYield()
112 
113 void vTaskSwitchContext();
114 #define portYIELD_FROM_ISR()    vTaskSwitchContext()
115 /*-----------------------------------------------------------*/
116 
117 /* Hardware specifics. */
118 #define portBYTE_ALIGNMENT    4
119 #define portSTACK_GROWTH      ( -1 )
120 #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
121 #define portNOP()               asm volatile ( "NOP" )
122 #define portMEMORY_BARRIER()    asm volatile ( "" ::: "memory" )
123 /*-----------------------------------------------------------*/
124 
125 /* Task function macros as described on the FreeRTOS.org WEB site. */
126 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters )    void vFunction( void * pvParameters )
127 #define portTASK_FUNCTION( vFunction, pvParameters )          void vFunction( void * pvParameters )
128 
129 /* *INDENT-OFF* */
130 #ifdef __cplusplus
131     }
132 #endif
133 /* *INDENT-ON* */
134 
135 #endif /* PORTMACRO_H */
136