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 #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 ) \
89     do                                           \
90     {                                            \
91         if( xSwitchRequired != pdFALSE )         \
92         {                                        \
93             traceISR_EXIT_TO_SCHEDULER();        \
94             vTaskSwitchContext();                \
95         }                                        \
96         else                                     \
97         {                                        \
98             traceISR_EXIT();                     \
99         }                                        \
100     } while( 0 )
101 
102 /* Include the port_asm.S file where the Context saving/restoring is defined. */
103 __asm__ ( "\n\t.globl    save_context" );
104 
105 /*-----------------------------------------------------------*/
106 
107 extern void vTaskEnterCritical( void );
108 extern void vTaskExitCritical( void );
109 
110 #define portDISABLE_INTERRUPTS()    alt_irq_disable_all()
111 #define portENABLE_INTERRUPTS()     alt_irq_enable_all( 0x01 );
112 #define portENTER_CRITICAL()        vTaskEnterCritical()
113 #define portEXIT_CRITICAL()         vTaskExitCritical()
114 /*-----------------------------------------------------------*/
115 
116 /* Task function macros as described on the FreeRTOS.org WEB site. */
117 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters )    void vFunction( void * pvParameters )
118 #define portTASK_FUNCTION( vFunction, pvParameters )          void vFunction( void * pvParameters )
119 
120 /* *INDENT-OFF* */
121 #ifdef __cplusplus
122     }
123 #endif
124 /* *INDENT-ON* */
125 
126 #endif /* PORTMACRO_H */
127