platform/msb430/cfs-coffee-arch.c

   1 /*
   2  * Copyright (c) 2009, Swedish Institute of Computer Science
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the Institute nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * This file is part of the Contiki operating system.
  30  *
  31  */
  32
  33 /**
  34  * \file
  35  *      Coffee functions the MSB-430 platform.
  36  * \author
  37  *      Nicolas Tsiftes <nvt@sics.se>
  38  */
  39
  40 #include "cfs-coffee-arch.h"
  41 #include "dev/sd.h"
  42
  43 #include <string.h>
  44
  45 int
  46 cfs_coffee_arch_erase(unsigned sector)
  47 {
  48   char buf[SD_DEFAULT_BLOCK_SIZE];
  49   sd_offset_t start_offset;
  50   sd_offset_t end_offset;
  51   sd_offset_t offset;
  52
  53   memset(buf, 0, sizeof(buf));
  54
  55   start_offset = COFFEE_START + sector * COFFEE_SECTOR_SIZE;
  56   end_offset = start_offset + COFFEE_SECTOR_SIZE;
  57
  58   for(offset = start_offset; offset < end_offset; offset += SD_DEFAULT_BLOCK_SIZE) {
  59     if(sd_write(offset, buf, sizeof(buf)) < 0) {
  60       return -1;
  61     }
  62   }
  63   return 0;
  64 }