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1 /*\r
2  * FreeRTOS Kernel V10.1.0\r
3  * Copyright (C) 2018 Amazon.com, Inc. or its affiliates.  All Rights Reserved.\r
4  *\r
5  * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
6  * this software and associated documentation files (the "Software"), to deal in\r
7  * the Software without restriction, including without limitation the rights to\r
8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
9  * the Software, and to permit persons to whom the Software is furnished to do so,\r
10  * subject to the following conditions:\r
11  *\r
12  * The above copyright notice and this permission notice shall be included in all\r
13  * copies or substantial portions of the Software.\r
14  *\r
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
21  *\r
22  * http://www.FreeRTOS.org\r
23  * http://aws.amazon.com/freertos\r
24  *\r
25  * 1 tab == 4 spaces!\r
26  */\r
27 \r
28 #ifndef PORTMACRO_H\r
29 #define PORTMACRO_H\r
30 \r
31 /*-----------------------------------------------------------\r
32  * Port specific definitions.\r
33  *\r
34  * The settings in this file configure FreeRTOS correctly for the\r
35  * given hardware and compiler.\r
36  *\r
37  * These settings should not be altered.\r
38  *-----------------------------------------------------------\r
39  */\r
40 \r
41 /* Type definitions. */\r
42 #define portCHAR                char\r
43 #define portFLOAT               float\r
44 #define portDOUBLE              double\r
45 #define portLONG                long\r
46 #define portSHORT               int\r
47 #define portSTACK_TYPE  uint16_t\r
48 #define portBASE_TYPE   short\r
49 \r
50 typedef portSTACK_TYPE StackType_t;\r
51 typedef short BaseType_t;\r
52 typedef unsigned short UBaseType_t;\r
53 \r
54 \r
55 #if( configUSE_16_BIT_TICKS == 1 )\r
56         typedef uint16_t TickType_t;\r
57         #define portMAX_DELAY ( TickType_t ) 0xffff\r
58 #else\r
59         typedef uint32_t TickType_t;\r
60         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
61 #endif\r
62 \r
63 /*-----------------------------------------------------------*/\r
64 \r
65 /* Interrupt control macros. */\r
66 #define portDISABLE_INTERRUPTS()        _DINT(); _NOP()\r
67 #define portENABLE_INTERRUPTS()         _EINT(); _NOP()\r
68 /*-----------------------------------------------------------*/\r
69 \r
70 /* Critical section control macros. */\r
71 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )\r
72 \r
73 #define portENTER_CRITICAL()                                                                                                    \\r
74 {                                                                                                                                                               \\r
75 extern volatile uint16_t usCriticalNesting;                                                     \\r
76                                                                                                                                                                 \\r
77         portDISABLE_INTERRUPTS();                                                                                                       \\r
78                                                                                                                                                                 \\r
79         /* Now interrupts are disabled usCriticalNesting can be accessed */                     \\r
80         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \\r
81         /* times portENTER_CRITICAL() has been called. */                                                       \\r
82         usCriticalNesting++;                                                                                                            \\r
83 }\r
84 \r
85 #define portEXIT_CRITICAL()                                                                                                             \\r
86 {                                                                                                                                                               \\r
87 extern volatile uint16_t usCriticalNesting;                                                     \\r
88                                                                                                                                                                 \\r
89         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \\r
90         {                                                                                                                                                       \\r
91                 /* Decrement the nesting count as we are leaving a critical section. */ \\r
92                 usCriticalNesting--;                                                                                                    \\r
93                                                                                                                                                                 \\r
94                 /* If the nesting level has reached zero then interrupts should be */   \\r
95                 /* re-enabled. */                                                                                                               \\r
96                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \\r
97                 {                                                                                                                                               \\r
98                         portENABLE_INTERRUPTS();                                                                                        \\r
99                 }                                                                                                                                               \\r
100         }                                                                                                                                                       \\r
101 }\r
102 /*-----------------------------------------------------------*/\r
103 \r
104 /* Task utilities. */\r
105 \r
106 /*\r
107  * Manual context switch called by portYIELD or taskYIELD.\r
108  */\r
109 extern void vPortYield( void );\r
110 #define portYIELD() vPortYield()\r
111 /*-----------------------------------------------------------*/\r
112 \r
113 /* Hardware specifics. */\r
114 #define portBYTE_ALIGNMENT                      2\r
115 #define portSTACK_GROWTH                        ( -1 )\r
116 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
117 #define portNOP()\r
118 #define portPOINTER_SIZE_TYPE           uint16_t\r
119 /*-----------------------------------------------------------*/\r
120 \r
121 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
122 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
123 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
124 \r
125 #if configINTERRUPT_EXAMPLE_METHOD == 2\r
126 \r
127 extern void vTaskSwitchContext( void );\r
128 #define portYIELD_FROM_ISR( x ) if( x ) vTaskSwitchContext()\r
129 \r
130 #endif\r
131 \r
132 #endif /* PORTMACRO_H */\r
133 \r