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

   1 /*\r
   2     FreeRTOS V7.5.0 - 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
   7      *                                                                       *\r
   8      *    FreeRTOS provides completely free yet professionally developed,    *\r
   9      *    robust, strictly quality controlled, supported, and cross          *\r
  10      *    platform software that has become a de facto standard.             *\r
  11      *                                                                       *\r
  12      *    Help yourself get started quickly and support the FreeRTOS         *\r
  13      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
  14      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
  15      *                                                                       *\r
  16      *    Thank you!                                                         *\r
  17      *                                                                       *\r
  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
  24     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  25 \r
  26     >>! NOTE: The modification to the GPL is included to allow you to distribute\r
  27     >>! a combined work that includes FreeRTOS without being obliged to provide\r
  28     >>! the source code for proprietary components outside of the FreeRTOS\r
  29     >>! kernel.\r
  30 \r
  31     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  32     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  33     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
  34     link: http://www.freertos.org/a00114.html\r
  35 \r
  36     1 tab == 4 spaces!\r
  37 \r
  38     ***************************************************************************\r
  39      *                                                                       *\r
  40      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  41      *    not run, what could be wrong?"                                     *\r
  42      *                                                                       *\r
  43      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  44      *                                                                       *\r
  45     ***************************************************************************\r
  46 \r
  47     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  48     license and Real Time Engineers Ltd. contact details.\r
  49 \r
  50     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  51     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  52     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  53 \r
  54     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  55     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  56     licenses offer ticketed support, indemnification and middleware.\r
  57 \r
  58     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  59     engineered and independently SIL3 certified version for use in safety and\r
  60     mission critical applications that require provable dependability.\r
  61 \r
  62     1 tab == 4 spaces!\r
  63 */\r
  64 #include <c8051f120.h>\r
  65 \r
  66 #include "FreeRTOS.h"\r
  67 #include "task.h"\r
  68 #include "partest.h"\r
  69 \r
  70 #define partstPUSH_PULL                 ( ( unsigned char ) 0xff )\r
  71 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0xff )\r
  72 \r
  73 /* LED to output is dependent on how the LED's are wired. */\r
  74 #define partstOUTPUT_0                  ( ( unsigned char ) 0x02 )\r
  75 #define partstOUTPUT_1                  ( ( unsigned char ) 0x08 )\r
  76 #define partstOUTPUT_2                  ( ( unsigned char ) 0x20 )\r
  77 #define partstOUTPUT_3                  ( ( unsigned char ) 0x01 )\r
  78 #define partstOUTPUT_4                  ( ( unsigned char ) 0x04 )\r
  79 #define partstOUTPUT_5                  ( ( unsigned char ) 0x10 )\r
  80 #define partstOUTPUT_6                  ( ( unsigned char ) 0x40 )\r
  81 #define partstOUTPUT_7                  ( ( unsigned char ) 0x80 )\r
  82 \r
  83 /*-----------------------------------------------------------\r
  84  * Simple parallel port IO routines.\r
  85  *-----------------------------------------------------------*/\r
  86 \r
  87 void vParTestInitialise( void )\r
  88 {\r
  89 unsigned char ucOriginalSFRPage;\r
  90 \r
  91         /* Remember the SFR page before it is changed so it can get set back\r
  92         before the function exits. */\r
  93         ucOriginalSFRPage = SFRPAGE;\r
  94 \r
  95         /* Setup the SFR page to access the config SFR's. */\r
  96         SFRPAGE = CONFIG_PAGE;\r
  97 \r
  98         /* Set the on board LED to push pull. */\r
  99         P3MDOUT |= partstPUSH_PULL;\r
 100 \r
 101         /* Return the SFR page. */\r
 102         SFRPAGE = ucOriginalSFRPage;\r
 103 \r
 104         P3 = partstALL_OUTPUTS_OFF;\r
 105 }\r
 106 /*-----------------------------------------------------------*/\r
 107 \r
 108 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )\r
 109 {\r
 110 portBASE_TYPE xError = pdFALSE;\r
 111 \r
 112         vTaskSuspendAll();\r
 113         {\r
 114                 if( xValue == pdFALSE )\r
 115                 {\r
 116                         switch( uxLED )\r
 117                         {\r
 118                                 case 0  :       P3 |= partstOUTPUT_0;\r
 119                                                         break;\r
 120                                 case 1  :       P3 |= partstOUTPUT_1;\r
 121                                                         break;\r
 122                                 case 2  :       P3 |= partstOUTPUT_2;\r
 123                                                         break;\r
 124                                 case 3  :       P3 |= partstOUTPUT_3;\r
 125                                                         break;\r
 126                                 case 4  :       P3 |= partstOUTPUT_4;\r
 127                                                         break;\r
 128                                 case 5  :       P3 |= partstOUTPUT_5;\r
 129                                                         break;\r
 130                                 case 6  :       P3 |= partstOUTPUT_6;\r
 131                                                         break;\r
 132                                 case 7  :       P3 |= partstOUTPUT_7;\r
 133                                                         break;\r
 134                                 default :       /* There are no other LED's wired in. */\r
 135                                                         xError = pdTRUE;\r
 136                                                         break;\r
 137                         }\r
 138                 }\r
 139                 else\r
 140                 {\r
 141                         switch( uxLED )\r
 142                         {\r
 143                                 case 0  :       P3 &= ~partstOUTPUT_0;\r
 144                                                         break;\r
 145                                 case 1  :       P3 &= ~partstOUTPUT_1;\r
 146                                                         break;\r
 147                                 case 2  :       P3 &= ~partstOUTPUT_2;\r
 148                                                         break;\r
 149                                 case 3  :       P3 &= ~partstOUTPUT_3;\r
 150                                                         break;\r
 151                                 case 4  :       P3 &= ~partstOUTPUT_4;\r
 152                                                         break;\r
 153                                 case 5  :       P3 &= ~partstOUTPUT_5;\r
 154                                                         break;\r
 155                                 case 6  :       P3 &= ~partstOUTPUT_6;\r
 156                                                         break;\r
 157                                 case 7  :       P3 &= ~partstOUTPUT_7;\r
 158                                                         break;\r
 159                                 default :       /* There are no other LED's wired in. */\r
 160                                                         break;\r
 161                         }\r
 162                 }\r
 163         }\r
 164         xTaskResumeAll();\r
 165 }\r
 166 /*-----------------------------------------------------------*/\r
 167 \r
 168 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 169 {\r
 170 unsigned char ucBit;\r
 171 portBASE_TYPE xError = pdFALSE;\r
 172 \r
 173         vTaskSuspendAll();\r
 174         {\r
 175                 switch( uxLED )\r
 176                 {\r
 177                         case 0  :       ucBit = partstOUTPUT_0;\r
 178                                                 break;\r
 179                         case 1  :       ucBit = partstOUTPUT_1;\r
 180                                                 break;\r
 181                         case 2  :       ucBit = partstOUTPUT_2;\r
 182                                                 break;\r
 183                         case 3  :       ucBit = partstOUTPUT_3;\r
 184                                                 break;\r
 185                         case 4  :       ucBit = partstOUTPUT_4;\r
 186                                                 break;\r
 187                         case 5  :       ucBit = partstOUTPUT_5;\r
 188                                                 break;\r
 189                         case 6  :       ucBit = partstOUTPUT_6;\r
 190                                                 break;\r
 191                         case 7  :       ucBit = partstOUTPUT_7;\r
 192                                                 break;\r
 193                         default :       /* There are no other LED's wired in. */\r
 194                                                 xError = pdTRUE;\r
 195                                                 break;\r
 196                 }\r
 197 \r
 198                 if( xError != pdTRUE )\r
 199                 {\r
 200                         if( P3 & ucBit )\r
 201                         {\r
 202                                 P3 &= ~ucBit;\r
 203                         }\r
 204                         else\r
 205                         {\r
 206                                 P3 |= ucBit;\r
 207                         }\r
 208                 }\r
 209         }\r
 210         xTaskResumeAll();\r
 211 }\r
 212 \r
 213 \r