git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/Cygnal/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V8.1.1 - Copyright (C) 2014 Real Time Engineers Ltd. \r
   3     All rights reserved\r
   4 \r
   5     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     ***************************************************************************\r
   8      *                                                                       *\r
   9      *    FreeRTOS provides completely free yet professionally developed,    *\r
  10      *    robust, strictly quality controlled, supported, and cross          *\r
  11      *    platform software that has become a de facto standard.             *\r
  12      *                                                                       *\r
  13      *    Help yourself get started quickly and support the FreeRTOS         *\r
  14      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
  15      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
  16      *                                                                       *\r
  17      *    Thank you!                                                         *\r
  18      *                                                                       *\r
  19     ***************************************************************************\r
  20 \r
  21     This file is part of the FreeRTOS distribution.\r
  22 \r
  23     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  24     the terms of the GNU General Public License (version 2) as published by the\r
  25     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  26 \r
  27     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  28     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  29     >>!   obliged to provide the source code for proprietary components     !<<\r
  30     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  31 \r
  32     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  33     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  34     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
  35     link: http://www.freertos.org/a00114.html\r
  36 \r
  37     1 tab == 4 spaces!\r
  38 \r
  39     ***************************************************************************\r
  40      *                                                                       *\r
  41      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  42      *    not run, what could be wrong?"                                     *\r
  43      *                                                                       *\r
  44      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  45      *                                                                       *\r
  46     ***************************************************************************\r
  47 \r
  48     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  49     license and Real Time Engineers Ltd. contact details.\r
  50 \r
  51     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  52     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  53     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  54 \r
  55     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  56     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  57     licenses offer ticketed support, indemnification and middleware.\r
  58 \r
  59     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  60     engineered and independently SIL3 certified version for use in safety and\r
  61     mission critical applications that require provable dependability.\r
  62 \r
  63     1 tab == 4 spaces!\r
  64 */\r
  65 #include <c8051f120.h>\r
  66 \r
  67 #include "FreeRTOS.h"\r
  68 #include "task.h"\r
  69 #include "partest.h"\r
  70 \r
  71 #define partstPUSH_PULL                 ( ( unsigned char ) 0xff )\r
  72 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0xff )\r
  73 \r
  74 /* LED to output is dependent on how the LED's are wired. */\r
  75 #define partstOUTPUT_0                  ( ( unsigned char ) 0x02 )\r
  76 #define partstOUTPUT_1                  ( ( unsigned char ) 0x08 )\r
  77 #define partstOUTPUT_2                  ( ( unsigned char ) 0x20 )\r
  78 #define partstOUTPUT_3                  ( ( unsigned char ) 0x01 )\r
  79 #define partstOUTPUT_4                  ( ( unsigned char ) 0x04 )\r
  80 #define partstOUTPUT_5                  ( ( unsigned char ) 0x10 )\r
  81 #define partstOUTPUT_6                  ( ( unsigned char ) 0x40 )\r
  82 #define partstOUTPUT_7                  ( ( unsigned char ) 0x80 )\r
  83 \r
  84 /*-----------------------------------------------------------\r
  85  * Simple parallel port IO routines.\r
  86  *-----------------------------------------------------------*/\r
  87 \r
  88 void vParTestInitialise( void )\r
  89 {\r
  90 unsigned char ucOriginalSFRPage;\r
  91 \r
  92         /* Remember the SFR page before it is changed so it can get set back\r
  93         before the function exits. */\r
  94         ucOriginalSFRPage = SFRPAGE;\r
  95 \r
  96         /* Setup the SFR page to access the config SFR's. */\r
  97         SFRPAGE = CONFIG_PAGE;\r
  98 \r
  99         /* Set the on board LED to push pull. */\r
 100         P3MDOUT |= partstPUSH_PULL;\r
 101 \r
 102         /* Return the SFR page. */\r
 103         SFRPAGE = ucOriginalSFRPage;\r
 104 \r
 105         P3 = partstALL_OUTPUTS_OFF;\r
 106 }\r
 107 /*-----------------------------------------------------------*/\r
 108 \r
 109 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )\r
 110 {\r
 111 portBASE_TYPE xError = pdFALSE;\r
 112 \r
 113         vTaskSuspendAll();\r
 114         {\r
 115                 if( xValue == pdFALSE )\r
 116                 {\r
 117                         switch( uxLED )\r
 118                         {\r
 119                                 case 0  :       P3 |= partstOUTPUT_0;\r
 120                                                         break;\r
 121                                 case 1  :       P3 |= partstOUTPUT_1;\r
 122                                                         break;\r
 123                                 case 2  :       P3 |= partstOUTPUT_2;\r
 124                                                         break;\r
 125                                 case 3  :       P3 |= partstOUTPUT_3;\r
 126                                                         break;\r
 127                                 case 4  :       P3 |= partstOUTPUT_4;\r
 128                                                         break;\r
 129                                 case 5  :       P3 |= partstOUTPUT_5;\r
 130                                                         break;\r
 131                                 case 6  :       P3 |= partstOUTPUT_6;\r
 132                                                         break;\r
 133                                 case 7  :       P3 |= partstOUTPUT_7;\r
 134                                                         break;\r
 135                                 default :       /* There are no other LED's wired in. */\r
 136                                                         xError = pdTRUE;\r
 137                                                         break;\r
 138                         }\r
 139                 }\r
 140                 else\r
 141                 {\r
 142                         switch( uxLED )\r
 143                         {\r
 144                                 case 0  :       P3 &= ~partstOUTPUT_0;\r
 145                                                         break;\r
 146                                 case 1  :       P3 &= ~partstOUTPUT_1;\r
 147                                                         break;\r
 148                                 case 2  :       P3 &= ~partstOUTPUT_2;\r
 149                                                         break;\r
 150                                 case 3  :       P3 &= ~partstOUTPUT_3;\r
 151                                                         break;\r
 152                                 case 4  :       P3 &= ~partstOUTPUT_4;\r
 153                                                         break;\r
 154                                 case 5  :       P3 &= ~partstOUTPUT_5;\r
 155                                                         break;\r
 156                                 case 6  :       P3 &= ~partstOUTPUT_6;\r
 157                                                         break;\r
 158                                 case 7  :       P3 &= ~partstOUTPUT_7;\r
 159                                                         break;\r
 160                                 default :       /* There are no other LED's wired in. */\r
 161                                                         break;\r
 162                         }\r
 163                 }\r
 164         }\r
 165         xTaskResumeAll();\r
 166 }\r
 167 /*-----------------------------------------------------------*/\r
 168 \r
 169 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 170 {\r
 171 unsigned char ucBit;\r
 172 portBASE_TYPE xError = pdFALSE;\r
 173 \r
 174         vTaskSuspendAll();\r
 175         {\r
 176                 switch( uxLED )\r
 177                 {\r
 178                         case 0  :       ucBit = partstOUTPUT_0;\r
 179                                                 break;\r
 180                         case 1  :       ucBit = partstOUTPUT_1;\r
 181                                                 break;\r
 182                         case 2  :       ucBit = partstOUTPUT_2;\r
 183                                                 break;\r
 184                         case 3  :       ucBit = partstOUTPUT_3;\r
 185                                                 break;\r
 186                         case 4  :       ucBit = partstOUTPUT_4;\r
 187                                                 break;\r
 188                         case 5  :       ucBit = partstOUTPUT_5;\r
 189                                                 break;\r
 190                         case 6  :       ucBit = partstOUTPUT_6;\r
 191                                                 break;\r
 192                         case 7  :       ucBit = partstOUTPUT_7;\r
 193                                                 break;\r
 194                         default :       /* There are no other LED's wired in. */\r
 195                                                 xError = pdTRUE;\r
 196                                                 break;\r
 197                 }\r
 198 \r
 199                 if( xError != pdTRUE )\r
 200                 {\r
 201                         if( P3 & ucBit )\r
 202                         {\r
 203                                 P3 &= ~ucBit;\r
 204                         }\r
 205                         else\r
 206                         {\r
 207                                 P3 |= ucBit;\r
 208                         }\r
 209                 }\r
 210         }\r
 211         xTaskResumeAll();\r
 212 }\r
 213 \r
 214 \r