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

   1 /*\r
   2     FreeRTOS V8.2.0rc1 - 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     This file is part of the FreeRTOS distribution.\r
   8 \r
   9     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  10     the terms of the GNU General Public License (version 2) as published by the\r
  11     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  12 \r
  13     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  14     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  15     >>!   obliged to provide the source code for proprietary components     !<<\r
  16     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  17 \r
  18     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  19     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  20     FOR A PARTICULAR PURPOSE.  Full license text is available on the following\r
  21     link: http://www.freertos.org/a00114.html\r
  22 \r
  23     1 tab == 4 spaces!\r
  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
  27      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  28      *    not run, what could be wrong?".  Have you defined configASSERT()?  *\r
  29      *                                                                       *\r
  30      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  31      *                                                                       *\r
  32     ***************************************************************************\r
  33 \r
  34     ***************************************************************************\r
  35      *                                                                       *\r
  36      *    FreeRTOS provides completely free yet professionally developed,    *\r
  37      *    robust, strictly quality controlled, supported, and cross          *\r
  38      *    platform software that is more than just the market leader, it     *\r
  39      *    is the industry's de facto standard.                               *\r
  40      *                                                                       *\r
  41      *    Help yourself get started quickly while simultaneously helping     *\r
  42      *    to support the FreeRTOS project by purchasing a FreeRTOS           *\r
  43      *    tutorial book, reference manual, or both:                          *\r
  44      *    http://www.FreeRTOS.org/Documentation                              *\r
  45      *                                                                       *\r
  46     ***************************************************************************\r
  47 \r
  48     ***************************************************************************\r
  49      *                                                                       *\r
  50      *   Investing in training allows your team to be as productive as       *\r
  51      *   possible as early as possible, lowering your overall development    *\r
  52      *   cost, and enabling you to bring a more robust product to market     *\r
  53      *   earlier than would otherwise be possible.  Richard Barry is both    *\r
  54      *   the architect and key author of FreeRTOS, and so also the world's   *\r
  55      *   leading authority on what is the world's most popular real time     *\r
  56      *   kernel for deeply embedded MCU designs.  Obtaining your training    *\r
  57      *   from Richard ensures your team will gain directly from his in-depth *\r
  58      *   product knowledge and years of usage experience.  Contact Real Time *\r
  59      *   Engineers Ltd to enquire about the FreeRTOS Masterclass, presented  *\r
  60      *   by Richard Barry:  http://www.FreeRTOS.org/contact\r
  61      *                                                                       *\r
  62     ***************************************************************************\r
  63 \r
  64     ***************************************************************************\r
  65      *                                                                       *\r
  66      *    You are receiving this top quality software for free.  Please play *\r
  67      *    fair and reciprocate by reporting any suspected issues and         *\r
  68      *    participating in the community forum:                              *\r
  69      *    http://www.FreeRTOS.org/support                                    *\r
  70      *                                                                       *\r
  71      *    Thank you!                                                         *\r
  72      *                                                                       *\r
  73     ***************************************************************************\r
  74 \r
  75     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  76     license and Real Time Engineers Ltd. contact details.\r
  77 \r
  78     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  79     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  80     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  81 \r
  82     http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.\r
  83     Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.\r
  84 \r
  85     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  86     Integrity Systems ltd. to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  87     licenses offer ticketed support, indemnification and commercial middleware.\r
  88 \r
  89     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  90     engineered and independently SIL3 certified version for use in safety and\r
  91     mission critical applications that require provable dependability.\r
  92 \r
  93     1 tab == 4 spaces!\r
  94 */\r
  95 \r
  96 \r
  97 /* Scheduler includes. */\r
  98 #include "FreeRTOS.h"\r
  99 \r
 100 /* Demo application includes. */\r
 101 #include "partest.h"\r
 102 \r
 103 /* Library includes. */\r
 104 #include "xparameters.h"\r
 105 #include "xgpio_l.h"\r
 106 \r
 107 /* Misc hardware specific definitions. */\r
 108 #define partstALL_AS_OUTPUT     0x00\r
 109 #define partstCHANNEL_1         0x01\r
 110 #define partstMAX_8BIT_LED      0x07\r
 111 \r
 112 /* The outputs are split into two IO sections, these variables maintain the \r
 113 current value of either section. */\r
 114 static unsigned portBASE_TYPE uxCurrentOutput8Bit, uxCurrentOutput5Bit;\r
 115 \r
 116 /*-----------------------------------------------------------*/\r
 117 /*\r
 118  * Setup the IO for the LED outputs.\r
 119  */\r
 120 void vParTestInitialise( void )\r
 121 {\r
 122         /* Set both sets of LED's on the demo board to outputs. */\r
 123         XGpio_mSetDataDirection( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );\r
 124         XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );\r
 125 \r
 126         /* Start with all outputs off. */\r
 127         uxCurrentOutput8Bit = 0;\r
 128         XGpio_mSetDataReg( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, 0x00 );\r
 129         uxCurrentOutput5Bit = 0;\r
 130         XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 );\r
 131 }\r
 132 /*-----------------------------------------------------------*/\r
 133 \r
 134 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 135 {\r
 136 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
 137 \r
 138         portENTER_CRITICAL();\r
 139         {\r
 140                 /* Which IO section does the LED being set/cleared belong to?  The\r
 141                 4 bit or 5 bit outputs? */\r
 142                 if( uxLED <= partstMAX_8BIT_LED )\r
 143                 {\r
 144                         uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;\r
 145                         puxCurrentValue = &uxCurrentOutput5Bit;\r
 146                 }       \r
 147                 else\r
 148                 {\r
 149                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
 150                         puxCurrentValue = &uxCurrentOutput8Bit;\r
 151                         uxLED -= partstMAX_8BIT_LED;\r
 152                 }\r
 153 \r
 154                 /* Setup the bit mask accordingly. */\r
 155                 uxLED = 0x01 << uxLED;\r
 156 \r
 157                 /* Maintain the current output value. */\r
 158                 if( xValue )\r
 159                 {\r
 160                         *puxCurrentValue |= uxLED;\r
 161                 }\r
 162                 else\r
 163                 {\r
 164                         *puxCurrentValue &= ~uxLED;\r
 165                 }\r
 166 \r
 167                 /* Write the value to the port. */\r
 168                 XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
 169         }\r
 170         portEXIT_CRITICAL();\r
 171 }\r
 172 /*-----------------------------------------------------------*/\r
 173 \r
 174 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 175 {\r
 176 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;\r
 177 \r
 178         portENTER_CRITICAL();\r
 179         {\r
 180                 /* Which IO section does the LED being toggled belong to?  The\r
 181                 4 bit or 5 bit outputs? */\r
 182                 if( uxLED <= partstMAX_8BIT_LED )\r
 183                 {\r
 184 \r
 185                         uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;\r
 186                         puxCurrentValue = &uxCurrentOutput5Bit;\r
 187                 }       \r
 188                 else\r
 189                 {\r
 190                         uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;\r
 191                         puxCurrentValue = &uxCurrentOutput8Bit;\r
 192                         uxLED -= partstMAX_8BIT_LED;\r
 193                 }\r
 194 \r
 195                 /* Setup the bit mask accordingly. */\r
 196                 uxLED = 0x01 << uxLED;\r
 197 \r
 198                 /* Maintain the current output value. */\r
 199                 if( *puxCurrentValue & uxLED )\r
 200                 {\r
 201                         *puxCurrentValue &= ~uxLED;\r
 202                 }\r
 203                 else\r
 204                 {\r
 205                         *puxCurrentValue |= uxLED;\r
 206                 }\r
 207 \r
 208                 /* Write the value to the port. */\r
 209                 XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );\r
 210         }\r
 211         portEXIT_CRITICAL();\r
 212 }\r
 213 \r
 214 \r