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

   1 /*\r
   2         FreeRTOS.org V4.8.0 - Copyright (C) 2003-2008 Richard Barry.\r
   3 \r
   4         This file is part of the FreeRTOS.org distribution.\r
   5 \r
   6         FreeRTOS.org is free software; you can redistribute it and/or modify\r
   7         it under the terms of the GNU General Public License as published by\r
   8         the Free Software Foundation; either version 2 of the License, or\r
   9         (at your option) any later version.\r
  10 \r
  11         FreeRTOS.org is distributed in the hope that it will be useful,\r
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14         GNU General Public License for more details.\r
  15 \r
  16         You should have received a copy of the GNU General Public License\r
  17         along with FreeRTOS.org; if not, write to the Free Software\r
  18         Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  19 \r
  20         A special exception to the GPL can be applied should you wish to distribute\r
  21         a combined work that includes FreeRTOS.org, without being obliged to provide\r
  22         the source code for any proprietary components.  See the licensing section \r
  23         of http://www.FreeRTOS.org for full details of how and when the exception\r
  24         can be applied.\r
  25 \r
  26         ***************************************************************************\r
  27         ***************************************************************************\r
  28         *                                                                                                                                                 *\r
  29         * SAVE TIME AND MONEY!  Why not get us to quote to get FreeRTOS.org               *\r
  30         * running on your hardware - or even write all or part of your application*\r
  31         * for you?  See http://www.OpenRTOS.com for details.                                      *\r
  32         *                                                                                                                                                 *\r
  33         ***************************************************************************\r
  34         ***************************************************************************\r
  35 \r
  36         Please ensure to read the configuration and relevant port sections of the\r
  37         online documentation.\r
  38 \r
  39         http://www.FreeRTOS.org - Documentation, latest information, license and \r
  40         contact details.\r
  41 \r
  42         http://www.SafeRTOS.com - A version that is certified for use in safety \r
  43         critical systems.\r
  44 \r
  45         http://www.OpenRTOS.com - Commercial support, development, porting, \r
  46         licensing and training services.\r
  47 */\r
  48 #include <c8051f120.h>\r
  49 \r
  50 #include "FreeRTOS.h"\r
  51 #include "task.h"\r
  52 #include "partest.h"\r
  53 \r
  54 #define partstPUSH_PULL                 ( ( unsigned portCHAR ) 0xff )\r
  55 #define partstALL_OUTPUTS_OFF   ( ( unsigned portCHAR ) 0xff )\r
  56 \r
  57 /* LED to output is dependent on how the LED's are wired. */\r
  58 #define partstOUTPUT_0                  ( ( unsigned portCHAR ) 0x02 )\r
  59 #define partstOUTPUT_1                  ( ( unsigned portCHAR ) 0x08 )\r
  60 #define partstOUTPUT_2                  ( ( unsigned portCHAR ) 0x20 )\r
  61 #define partstOUTPUT_3                  ( ( unsigned portCHAR ) 0x01 )\r
  62 #define partstOUTPUT_4                  ( ( unsigned portCHAR ) 0x04 )\r
  63 #define partstOUTPUT_5                  ( ( unsigned portCHAR ) 0x10 )\r
  64 #define partstOUTPUT_6                  ( ( unsigned portCHAR ) 0x40 )\r
  65 #define partstOUTPUT_7                  ( ( unsigned portCHAR ) 0x80 )\r
  66 \r
  67 /*-----------------------------------------------------------\r
  68  * Simple parallel port IO routines.\r
  69  *-----------------------------------------------------------*/\r
  70 \r
  71 void vParTestInitialise( void )\r
  72 {\r
  73 unsigned portCHAR ucOriginalSFRPage;\r
  74 \r
  75         /* Remember the SFR page before it is changed so it can get set back\r
  76         before the function exits. */\r
  77         ucOriginalSFRPage = SFRPAGE;\r
  78 \r
  79         /* Setup the SFR page to access the config SFR's. */\r
  80         SFRPAGE = CONFIG_PAGE;\r
  81 \r
  82         /* Set the on board LED to push pull. */\r
  83         P3MDOUT |= partstPUSH_PULL;\r
  84 \r
  85         /* Return the SFR page. */\r
  86         SFRPAGE = ucOriginalSFRPage;\r
  87 \r
  88         P3 = partstALL_OUTPUTS_OFF;\r
  89 }\r
  90 /*-----------------------------------------------------------*/\r
  91 \r
  92 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )\r
  93 {\r
  94 portBASE_TYPE xError = pdFALSE;\r
  95 \r
  96         vTaskSuspendAll();\r
  97         {\r
  98                 if( xValue == pdFALSE )\r
  99                 {\r
 100                         switch( uxLED )\r
 101                         {\r
 102                                 case 0  :       P3 |= partstOUTPUT_0;\r
 103                                                         break;\r
 104                                 case 1  :       P3 |= partstOUTPUT_1;\r
 105                                                         break;\r
 106                                 case 2  :       P3 |= partstOUTPUT_2;\r
 107                                                         break;\r
 108                                 case 3  :       P3 |= partstOUTPUT_3;\r
 109                                                         break;\r
 110                                 case 4  :       P3 |= partstOUTPUT_4;\r
 111                                                         break;\r
 112                                 case 5  :       P3 |= partstOUTPUT_5;\r
 113                                                         break;\r
 114                                 case 6  :       P3 |= partstOUTPUT_6;\r
 115                                                         break;\r
 116                                 case 7  :       P3 |= partstOUTPUT_7;\r
 117                                                         break;\r
 118                                 default :       /* There are no other LED's wired in. */\r
 119                                                         xError = pdTRUE;\r
 120                                                         break;\r
 121                         }\r
 122                 }\r
 123                 else\r
 124                 {\r
 125                         switch( uxLED )\r
 126                         {\r
 127                                 case 0  :       P3 &= ~partstOUTPUT_0;\r
 128                                                         break;\r
 129                                 case 1  :       P3 &= ~partstOUTPUT_1;\r
 130                                                         break;\r
 131                                 case 2  :       P3 &= ~partstOUTPUT_2;\r
 132                                                         break;\r
 133                                 case 3  :       P3 &= ~partstOUTPUT_3;\r
 134                                                         break;\r
 135                                 case 4  :       P3 &= ~partstOUTPUT_4;\r
 136                                                         break;\r
 137                                 case 5  :       P3 &= ~partstOUTPUT_5;\r
 138                                                         break;\r
 139                                 case 6  :       P3 &= ~partstOUTPUT_6;\r
 140                                                         break;\r
 141                                 case 7  :       P3 &= ~partstOUTPUT_7;\r
 142                                                         break;\r
 143                                 default :       /* There are no other LED's wired in. */\r
 144                                                         break;\r
 145                         }\r
 146                 }\r
 147         }\r
 148         xTaskResumeAll();\r
 149 }\r
 150 /*-----------------------------------------------------------*/\r
 151 \r
 152 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 153 {\r
 154 unsigned portCHAR ucBit;\r
 155 portBASE_TYPE xError = pdFALSE;\r
 156 \r
 157         vTaskSuspendAll();\r
 158         {\r
 159                 switch( uxLED )\r
 160                 {\r
 161                         case 0  :       ucBit = partstOUTPUT_0;\r
 162                                                 break;\r
 163                         case 1  :       ucBit = partstOUTPUT_1;\r
 164                                                 break;\r
 165                         case 2  :       ucBit = partstOUTPUT_2;\r
 166                                                 break;\r
 167                         case 3  :       ucBit = partstOUTPUT_3;\r
 168                                                 break;\r
 169                         case 4  :       ucBit = partstOUTPUT_4;\r
 170                                                 break;\r
 171                         case 5  :       ucBit = partstOUTPUT_5;\r
 172                                                 break;\r
 173                         case 6  :       ucBit = partstOUTPUT_6;\r
 174                                                 break;\r
 175                         case 7  :       ucBit = partstOUTPUT_7;\r
 176                                                 break;\r
 177                         default :       /* There are no other LED's wired in. */\r
 178                                                 xError = pdTRUE;\r
 179                                                 break;\r
 180                 }\r
 181 \r
 182                 if( xError != pdTRUE )\r
 183                 {\r
 184                         if( P3 & ucBit )\r
 185                         {\r
 186                                 P3 &= ~ucBit;\r
 187                         }\r
 188                         else\r
 189                         {\r
 190                                 P3 |= ucBit;\r
 191                         }\r
 192                 }\r
 193         }\r
 194         xTaskResumeAll();\r
 195 }\r
 196 \r
 197 \r