]> git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/CORTEX_MB9B500_IAR_Keil/ParTest.c
Add additional critical section to the default tickless implementations.
[freertos] / FreeRTOS / Demo / CORTEX_MB9B500_IAR_Keil / ParTest.c
1 /*\r
2     FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd.\r
3 \r
4     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
5 \r
6     ***************************************************************************\r
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16      *    Thank you!                                                         *\r
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18     ***************************************************************************\r
19 \r
20     This file is part of the FreeRTOS distribution.\r
21 \r
22     FreeRTOS is free software; you can redistribute it and/or modify it under\r
23     the terms of the GNU General Public License (version 2) as published by the\r
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25 \r
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31     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
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35 \r
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63 */\r
64 \r
65 /*-----------------------------------------------------------\r
66  * Simple parallel port IO routines.\r
67  *-----------------------------------------------------------*/\r
68 \r
69 /* Kernel includes. */\r
70 #include "FreeRTOS.h"\r
71 #include "task.h"\r
72 \r
73 /* Fujitsu drivers/libraries. */\r
74 #include "mb9bf506n.h"\r
75 #include "system_mb9bf50x.h"\r
76 \r
77 /* Only the LEDs on one of the two seven segment displays are used. */\r
78 #define partstMAX_LEDS          8\r
79 \r
80 /* The LEDs are controlled by bits 8 to 15 of the IO port. */\r
81 #define partstLED_0_OFFSET      8\r
82 \r
83 /*-----------------------------------------------------------*/\r
84 \r
85 void vParTestInitialise( void )\r
86 {\r
87 const unsigned short usGPIOState = 0xFF00U;\r
88 \r
89         /* Analog inputs are not used on the LED outputs. */\r
90         FM3_GPIO->ADE  = 0x00FF;\r
91         \r
92         /* LED seg1 to GPIO output (P18->P1F). */\r
93         FM3_GPIO->DDR1 = 0xFF00;\r
94         FM3_GPIO->PFR1 = 0x0000;\r
95         \r
96         /* LED seg2 to GPIO output (P30->P3F). */\r
97         FM3_GPIO->DDR3 = 0xFF00;\r
98         FM3_GPIO->PFR3 = 0x0000;\r
99         \r
100         /* Start with all LEDs off. */\r
101         FM3_GPIO->PDOR3 = usGPIOState;\r
102         FM3_GPIO->PDOR1 = usGPIOState;\r
103 }\r
104 /*-----------------------------------------------------------*/\r
105 \r
106 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
107 {\r
108         if( uxLED < partstMAX_LEDS )\r
109         {\r
110                 /* A critical section is used as the LEDs are also accessed from an\r
111                 interrupt. */\r
112                 taskENTER_CRITICAL();\r
113                 {\r
114                         if( xValue == pdTRUE )\r
115                         {\r
116                                 FM3_GPIO->PDOR3 &= ~( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
117                         }\r
118                         else\r
119                         {\r
120                                 FM3_GPIO->PDOR3 |= ( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
121                         }\r
122                 }\r
123                 taskEXIT_CRITICAL();\r
124         }\r
125 }\r
126 /*-----------------------------------------------------------*/\r
127 \r
128 void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
129 {\r
130 unsigned portBASE_TYPE uxInterruptFlags;\r
131 \r
132         uxInterruptFlags = portSET_INTERRUPT_MASK_FROM_ISR();\r
133         {\r
134                 if( uxLED < partstMAX_LEDS )\r
135                 {\r
136                         if( xValue == pdTRUE )\r
137                         {\r
138                                 FM3_GPIO->PDOR3 &= ~( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
139                         }\r
140                         else\r
141                         {\r
142                                 FM3_GPIO->PDOR3 |= ( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
143                         }\r
144                 }\r
145         }\r
146         portCLEAR_INTERRUPT_MASK_FROM_ISR( uxInterruptFlags );\r
147 }\r
148 /*-----------------------------------------------------------*/\r
149 \r
150 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
151 {\r
152         if( uxLED < partstMAX_LEDS )\r
153         {\r
154                 /* A critical section is used as the LEDs are also accessed from an\r
155                 interrupt. */\r
156                 taskENTER_CRITICAL();\r
157                 {\r
158                         if( ( FM3_GPIO->PDOR3 & ( 1UL << ( uxLED + partstLED_0_OFFSET ) ) ) != 0UL )\r
159                         {\r
160                                 FM3_GPIO->PDOR3 &= ~( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
161                         }\r
162                         else\r
163                         {\r
164                                 FM3_GPIO->PDOR3 |= ( 1UL << ( uxLED + partstLED_0_OFFSET ) );\r
165                         }\r
166                 }\r
167                 taskEXIT_CRITICAL();\r
168         }\r
169 }\r
170 /*-----------------------------------------------------------*/\r
171 \r
172 long lParTestGetLEDState( unsigned long ulLED )\r
173 {\r
174 long lReturn = pdFALSE;\r
175 \r
176         if( ulLED < partstMAX_LEDS )\r
177         {\r
178                 taskENTER_CRITICAL();\r
179                 {\r
180                         if( ( FM3_GPIO->PDOR3 & ( 1UL << ( ulLED + partstLED_0_OFFSET ) ) ) == 0UL )\r
181                         {\r
182                                 lReturn = pdTRUE;\r
183                         }\r
184                 }\r
185                 taskEXIT_CRITICAL();\r
186         }\r
187 \r
188         return lReturn;\r
189 }\r
190 /*-----------------------------------------------------------*/\r