include/io.h

   1 /* -------------------------------- Arctic Core ------------------------------\r
   2  * Arctic Core - the open source AUTOSAR platform http://arccore.com\r
   3  *\r
   4  * Copyright (C) 2009  ArcCore AB <contact@arccore.com>\r
   5  *\r
   6  * This source code is free software; you can redistribute it and/or modify it\r
   7  * under the terms of the GNU General Public License version 2 as published by the\r
   8  * Free Software Foundation; See <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>.\r
   9  *\r
  10  * This program is distributed in the hope that it will be useful, but\r
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License\r
  13  * for more details.\r
  14  * -------------------------------- Arctic Core ------------------------------*/\r
  15 \r
  16 #ifndef IO_H_\r
  17 #define IO_H_\r
  18 \r
  19 #define WRITE8(address, value)      (*(uint8_t*)(address) = (value))\r
  20 #define READ8(address)              ((uint8_t)(*(uint8_t*)(address)))\r
  21 \r
  22 #define WRITE16(address, value)     (*(vuint16_t*)(address) = (value))\r
  23 #define READ16(address)             ((uint16_t)(*(vuint16_t*)(address)))\r
  24 \r
  25 #define WRITE32(address, value)     (*(vuint32_t*)(address) = (value))\r
  26 #define READ32(address)             ((uint32_t)(*(vuint32_t*)(address)))\r
  27 \r
  28 #define WRITE64(address, value)     (*(vuint64_t*)(address) = (value))\r
  29 #define READ64(address)             ((uint64_t)(*(vuint64_t*)(address)))\r
  30 \r
  31 /* Not aligned reads */\r
  32 #define READ32_NA(address )                     ( (((uint32_t)(((uint8_t *)address)[0]))<<24) + \\r
  33                                                                           (((uint32_t)(((uint8_t *)address)[1]))<<16) + \\r
  34                                                                           (((uint32_t)(((uint8_t *)address)[2]))<<8) +  \\r
  35                                                                           ((uint32_t)(((uint8_t *)address)[3])) )\r
  36 \r
  37 #define READ16_NA(address )                     ( (((uint16_t)(((uint8_t *)address)[0]))<<8) +  \\r
  38                                                                           (((uint16_t)(((uint8_t *)address)[1]))) )\r
  39 \r
  40 #define READWRITE32(address,mask,val)  WRITE32(address,(READ32(address)&~(mask))|val)\r
  41 \r
  42 \r
  43 \r
  44 /* NA - Not Aligned */\r
  45 #define WRITE32_NA(address, value ) \\r
  46         do { \\r
  47         ((uint8_t *)address)[0] = ((value>>24)&0xff); \\r
  48         ((uint8_t *)address)[1] = ((value>>16)&0xff); \\r
  49         ((uint8_t *)address)[2] = ((value>>8)&0xff);  \\r
  50         ((uint8_t *)address)[3] = ((value&0xff)); \\r
  51         } while(0)\r
  52 \r
  53 #define WRITE16_NA(address, value ) \\r
  54         do { \\r
  55         ((uint8_t *)address)[0] = ((value>>8)&0xff); \\r
  56         ((uint8_t *)address)[1] = ((value&0xff)); \\r
  57         } while(0)\r
  58 \r
  59 \r
  60 \r
  61 #endif /* IO_H_ */\r