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[freertos] / FreeRTOS / Demo / Cygnal / ParTest / ParTest.c
1 /*\r
2     FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
3         \r
4 \r
5     ***************************************************************************\r
6      *                                                                       *\r
7      *    FreeRTOS tutorial books are available in pdf and paperback.        *\r
8      *    Complete, revised, and edited pdf reference manuals are also       *\r
9      *    available.                                                         *\r
10      *                                                                       *\r
11      *    Purchasing FreeRTOS documentation will not only help you, by       *\r
12      *    ensuring you get running as quickly as possible and with an        *\r
13      *    in-depth knowledge of how to use FreeRTOS, it will also help       *\r
14      *    the FreeRTOS project to continue with its mission of providing     *\r
15      *    professional grade, cross platform, de facto standard solutions    *\r
16      *    for microcontrollers - completely free of charge!                  *\r
17      *                                                                       *\r
18      *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *\r
19      *                                                                       *\r
20      *    Thank you for using FreeRTOS, and thank you for your support!      *\r
21      *                                                                       *\r
22     ***************************************************************************\r
23 \r
24 \r
25     This file is part of the FreeRTOS distribution.\r
26 \r
27     FreeRTOS is free software; you can redistribute it and/or modify it under\r
28     the terms of the GNU General Public License (version 2) as published by the\r
29     Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
30     >>>NOTE<<< The modification to the GPL is included to allow you to\r
31     distribute a combined work that includes FreeRTOS without being obliged to\r
32     provide the source code for proprietary components outside of the FreeRTOS\r
33     kernel.  FreeRTOS is distributed in the hope that it will be useful, but\r
34     WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
35     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for\r
36     more details. You should have received a copy of the GNU General Public\r
37     License and the FreeRTOS license exception along with FreeRTOS; if not it\r
38     can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
39     by writing to Richard Barry, contact details for whom are available on the\r
40     FreeRTOS WEB site.\r
41 \r
42     1 tab == 4 spaces!\r
43     \r
44     ***************************************************************************\r
45      *                                                                       *\r
46      *    Having a problem?  Start by reading the FAQ "My application does   *\r
47      *    not run, what could be wrong?                                      *\r
48      *                                                                       *\r
49      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
50      *                                                                       *\r
51     ***************************************************************************\r
52 \r
53     \r
54     http://www.FreeRTOS.org - Documentation, training, latest information, \r
55     license and contact details.\r
56     \r
57     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
58     including FreeRTOS+Trace - an indispensable productivity tool.\r
59 \r
60     Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
61     the code with commercial support, indemnification, and middleware, under \r
62     the OpenRTOS brand: http://www.OpenRTOS.com.  High Integrity Systems also\r
63     provide a safety engineered and independently SIL3 certified version under \r
64     the SafeRTOS brand: http://www.SafeRTOS.com.\r
65 */\r
66 #include <c8051f120.h>\r
67 \r
68 #include "FreeRTOS.h"\r
69 #include "task.h"\r
70 #include "partest.h"\r
71 \r
72 #define partstPUSH_PULL                 ( ( unsigned char ) 0xff )\r
73 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0xff )\r
74 \r
75 /* LED to output is dependent on how the LED's are wired. */\r
76 #define partstOUTPUT_0                  ( ( unsigned char ) 0x02 )\r
77 #define partstOUTPUT_1                  ( ( unsigned char ) 0x08 )\r
78 #define partstOUTPUT_2                  ( ( unsigned char ) 0x20 )\r
79 #define partstOUTPUT_3                  ( ( unsigned char ) 0x01 )\r
80 #define partstOUTPUT_4                  ( ( unsigned char ) 0x04 )\r
81 #define partstOUTPUT_5                  ( ( unsigned char ) 0x10 )\r
82 #define partstOUTPUT_6                  ( ( unsigned char ) 0x40 )\r
83 #define partstOUTPUT_7                  ( ( unsigned char ) 0x80 )\r
84 \r
85 /*-----------------------------------------------------------\r
86  * Simple parallel port IO routines.\r
87  *-----------------------------------------------------------*/\r
88 \r
89 void vParTestInitialise( void )\r
90 {\r
91 unsigned char ucOriginalSFRPage;\r
92 \r
93         /* Remember the SFR page before it is changed so it can get set back\r
94         before the function exits. */\r
95         ucOriginalSFRPage = SFRPAGE;\r
96 \r
97         /* Setup the SFR page to access the config SFR's. */\r
98         SFRPAGE = CONFIG_PAGE;\r
99 \r
100         /* Set the on board LED to push pull. */\r
101         P3MDOUT |= partstPUSH_PULL;\r
102 \r
103         /* Return the SFR page. */\r
104         SFRPAGE = ucOriginalSFRPage;\r
105 \r
106         P3 = partstALL_OUTPUTS_OFF;\r
107 }\r
108 /*-----------------------------------------------------------*/\r
109 \r
110 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )\r
111 {\r
112 portBASE_TYPE xError = pdFALSE;\r
113 \r
114         vTaskSuspendAll();\r
115         {\r
116                 if( xValue == pdFALSE )\r
117                 {\r
118                         switch( uxLED )\r
119                         {\r
120                                 case 0  :       P3 |= partstOUTPUT_0;\r
121                                                         break;\r
122                                 case 1  :       P3 |= partstOUTPUT_1;\r
123                                                         break;\r
124                                 case 2  :       P3 |= partstOUTPUT_2;\r
125                                                         break;\r
126                                 case 3  :       P3 |= partstOUTPUT_3;\r
127                                                         break;\r
128                                 case 4  :       P3 |= partstOUTPUT_4;\r
129                                                         break;\r
130                                 case 5  :       P3 |= partstOUTPUT_5;\r
131                                                         break;\r
132                                 case 6  :       P3 |= partstOUTPUT_6;\r
133                                                         break;\r
134                                 case 7  :       P3 |= partstOUTPUT_7;\r
135                                                         break;\r
136                                 default :       /* There are no other LED's wired in. */\r
137                                                         xError = pdTRUE;\r
138                                                         break;\r
139                         }\r
140                 }\r
141                 else\r
142                 {\r
143                         switch( uxLED )\r
144                         {\r
145                                 case 0  :       P3 &= ~partstOUTPUT_0;\r
146                                                         break;\r
147                                 case 1  :       P3 &= ~partstOUTPUT_1;\r
148                                                         break;\r
149                                 case 2  :       P3 &= ~partstOUTPUT_2;\r
150                                                         break;\r
151                                 case 3  :       P3 &= ~partstOUTPUT_3;\r
152                                                         break;\r
153                                 case 4  :       P3 &= ~partstOUTPUT_4;\r
154                                                         break;\r
155                                 case 5  :       P3 &= ~partstOUTPUT_5;\r
156                                                         break;\r
157                                 case 6  :       P3 &= ~partstOUTPUT_6;\r
158                                                         break;\r
159                                 case 7  :       P3 &= ~partstOUTPUT_7;\r
160                                                         break;\r
161                                 default :       /* There are no other LED's wired in. */\r
162                                                         break;\r
163                         }\r
164                 }\r
165         }\r
166         xTaskResumeAll();\r
167 }\r
168 /*-----------------------------------------------------------*/\r
169 \r
170 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
171 {\r
172 unsigned char ucBit;\r
173 portBASE_TYPE xError = pdFALSE;\r
174 \r
175         vTaskSuspendAll();\r
176         {\r
177                 switch( uxLED )\r
178                 {\r
179                         case 0  :       ucBit = partstOUTPUT_0;\r
180                                                 break;\r
181                         case 1  :       ucBit = partstOUTPUT_1;\r
182                                                 break;\r
183                         case 2  :       ucBit = partstOUTPUT_2;\r
184                                                 break;\r
185                         case 3  :       ucBit = partstOUTPUT_3;\r
186                                                 break;\r
187                         case 4  :       ucBit = partstOUTPUT_4;\r
188                                                 break;\r
189                         case 5  :       ucBit = partstOUTPUT_5;\r
190                                                 break;\r
191                         case 6  :       ucBit = partstOUTPUT_6;\r
192                                                 break;\r
193                         case 7  :       ucBit = partstOUTPUT_7;\r
194                                                 break;\r
195                         default :       /* There are no other LED's wired in. */\r
196                                                 xError = pdTRUE;\r
197                                                 break;\r
198                 }\r
199 \r
200                 if( xError != pdTRUE )\r
201                 {\r
202                         if( P3 & ucBit )\r
203                         {\r
204                                 P3 &= ~ucBit;\r
205                         }\r
206                         else\r
207                         {\r
208                                 P3 |= ucBit;\r
209                         }\r
210                 }\r
211         }\r
212         xTaskResumeAll();\r
213 }\r
214 \r
215 \r