ata.c

AVR ATMega library for using MMC /SD cart.

/* ****************************************************************************
 * Wrapper for mmc read function
 * 
 *  version: 0.1
 *  date: 2005-04-02
 * 
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software Foundation, 
 *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * ***************************************************************************/


#include <inttypes.h>
#include <string.h>
#include <avr/interrupt.h>
#include "mmc.h"
#include "types.h"


unsigned char ataReadSectors( unsigned char Drive, 
			      unsigned long lba,
			      unsigned int numsectors,
			      unsigned char *Buffer)
{
  if( numsectors == 1 ) {
    _disable();
    MMC_Read(lba);
    _enable();
    memcpy( Buffer, mmc_sbuf, numsectors * 512 );
  }
  return 0;
}
 
unsigned char ataWriteSectors( unsigned char Drive, 
			       unsigned long lba,
			       unsigned int numsectors,
			       unsigned char *Buffer)
{
  if( numsectors == 1 ) {
  
    memcpy( mmc_sbuf, Buffer, numsectors * 512 );
    _disable();
    MMC_Write(lba);
    _enable();
  }
  return 0;
}