cfs-coffee-arch.c

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/*
 * Copyright (c) 2009, Swedish Institute of Computer Science
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This file is part of the Contiki operating system.
 *
 */

/**
 * \file
 *      Coffee functions the MSB-430 platform.
 * \author
 *      Nicolas Tsiftes <nvt@sics.se>
 */

#include "cfs-coffee-arch.h"
#include "dev/sd.h"

#include <string.h>

int
cfs_coffee_arch_erase(unsigned sector)
{
  char buf[SD_DEFAULT_BLOCK_SIZE];
  sd_offset_t start_offset;
  sd_offset_t end_offset;
  sd_offset_t offset;

  memset(buf, 0, sizeof(buf));

  start_offset = COFFEE_START + sector * COFFEE_SECTOR_SIZE;
  end_offset = start_offset + COFFEE_SECTOR_SIZE;

  for(offset = start_offset; offset < end_offset; offset += SD_DEFAULT_BLOCK_SIZE) {
    if(sd_write(offset, buf, sizeof(buf)) < 0) {
      return -1;
    }
  }
  return 0;
}