git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/PPC440_SP_FPU_Xilinx_Virtex5_GCC/RTOSDemo/partest/partest.c

   1 /*\r
   2     FreeRTOS V8.1.2 - 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 \r
  66 \r
  67 /* Scheduler includes. */\r
  68 #include "FreeRTOS.h"\r
  69 \r
  70 /* Demo application includes. */\r
  71 #include "partest.h"\r
  72 \r
  73 /* Library includes. */\r
  74 #include "xparameters.h"\r
  75 #include "xgpio_l.h"\r
  76 \r
  77 /* Misc hardware specific definitions. */\r
  78 #define partstALL_AS_OUTPUT     0x00\r
  79 #define partstCHANNEL_1         0x01\r
  80 #define partstMAX_8BIT_LED      0x07\r
  81 \r
  82 /* The outputs are split into two IO sections, these variables maintain the \r
  83 current value of either section. */\r
  84 static unsigned portBASE_TYPE uxCurrentOutput8Bit, uxCurrentOutput5Bit;\r
  85 \r
  86 /*-----------------------------------------------------------*/\r
  87 /*\r
  88  * Setup the IO for the LED outputs.\r
  89  */\r
  90 void vParTestInitialise( void )\r
  91 {\r
  92         /* Set both sets of LED's on the demo board to outputs. */\r
  93         XGpio_mSetDataDirection( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );\r
  94         XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );\r
  95 \r
  96         /* Start with all outputs off. */\r
  97         uxCurrentOutput8Bit = 0;\r
  98         XGpio_mSetDataReg( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, 0x00 );\r
  99         uxCurrentOutput5Bit = 0;\r
 100         XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 );\r
 101 }\r
 102 /*-----------------------------------------------------------*/\r
 103 \r
 104 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 105 {\r
 106 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
 107 \r
 108         portENTER_CRITICAL();\r
 109         {\r
 110                 /* Which IO section does the LED being set/cleared belong to?  The\r
 111                 4 bit or 5 bit outputs? */\r
 112                 if( uxLED <= partstMAX_8BIT_LED )\r
 113                 {\r
 114                         uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;\r
 115                         puxCurrentValue = &uxCurrentOutput5Bit;\r
 116                 }       \r
 117                 else\r
 118                 {\r
 119                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
 120                         puxCurrentValue = &uxCurrentOutput8Bit;\r
 121                         uxLED -= partstMAX_8BIT_LED;\r
 122                 }\r
 123 \r
 124                 /* Setup the bit mask accordingly. */\r
 125                 uxLED = 0x01 << uxLED;\r
 126 \r
 127                 /* Maintain the current output value. */\r
 128                 if( xValue )\r
 129                 {\r
 130                         *puxCurrentValue |= uxLED;\r
 131                 }\r
 132                 else\r
 133                 {\r
 134                         *puxCurrentValue &= ~uxLED;\r
 135                 }\r
 136 \r
 137                 /* Write the value to the port. */\r
 138                 XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
 139         }\r
 140         portEXIT_CRITICAL();\r
 141 }\r
 142 /*-----------------------------------------------------------*/\r
 143 \r
 144 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 145 {\r
 146 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
 147 \r
 148         portENTER_CRITICAL();\r
 149         {\r
 150                 /* Which IO section does the LED being toggled belong to?  The\r
 151                 4 bit or 5 bit outputs? */\r
 152                 if( uxLED <= partstMAX_8BIT_LED )\r
 153                 {\r
 154 \r
 155                         uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;\r
 156                         puxCurrentValue = &uxCurrentOutput5Bit;\r
 157                 }       \r
 158                 else\r
 159                 {\r
 160                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
 161                         puxCurrentValue = &uxCurrentOutput8Bit;\r
 162                         uxLED -= partstMAX_8BIT_LED;\r
 163                 }\r
 164 \r
 165                 /* Setup the bit mask accordingly. */\r
 166                 uxLED = 0x01 << uxLED;\r
 167 \r
 168                 /* Maintain the current output value. */\r
 169                 if( *puxCurrentValue & uxLED )\r
 170                 {\r
 171                         *puxCurrentValue &= ~uxLED;\r
 172                 }\r
 173                 else\r
 174                 {\r
 175                         *puxCurrentValue |= uxLED;\r
 176                 }\r
 177 \r
 178                 /* Write the value to the port. */\r
 179                 XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
 180         }\r
 181         portEXIT_CRITICAL();\r
 182 }\r
 183 \r
 184 \r