/*
 * $Id: smartmedia.c,v 1.6 2003/10/19 21:06:35 germeier Exp $
 *
 *  libmpio - a library for accessing Digit@lways MPIO players
 *  Copyright (C) 2002, 2003 Markus Germeier
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc.,g 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <stdio.h>
#include <stdlib.h>

#include "smartmedia.h"
#include "debug.h"

mpio_disk_phy_t MPIO_DISK_GEO_001={ 125, 4,  4,   2000 };
mpio_disk_phy_t MPIO_DISK_GEO_002={ 125, 4,  8,   4000 };
mpio_disk_phy_t MPIO_DISK_GEO_004={ 250, 4,  8,   8000 };
mpio_disk_phy_t MPIO_DISK_GEO_008={ 250, 4, 16,  16000 };
mpio_disk_phy_t MPIO_DISK_GEO_016={ 500, 4, 16,  32000 };
mpio_disk_phy_t MPIO_DISK_GEO_032={ 500, 8, 16,  64000 };
mpio_disk_phy_t MPIO_DISK_GEO_064={ 500, 8, 32, 128000 };
mpio_disk_phy_t MPIO_DISK_GEO_128={ 500,16, 32, 256000 };
mpio_disk_phy_t MPIO_DISK_GEO_256={ 500,32, 32, 512000 }; /* guessed values -mager */

/* This comes from the Samsung documentation files */

/* a small warning: only use this function (mpio_id2mem) in the very
 * beginning of MPIO model detection. After that use the values
 * of size and chips! -mager
 */

int
mpio_id2mem(BYTE id)
{
  int i=0;
  
  switch(id) 
    {
    case 0xea:
      i=2;
      break;
    case 0xe3:  /* Samsung */
    case 0xe5:  /* Toshiba */
      i=4;
      break;
    case 0xe6:
      i=8;
      break;
    case 0x73:
      i=16;
      break;
    case 0x75:
      i=32;
      break;
    case 0x76:
      i=64;      
      break;
    case 0x79:
    case 0xf1: /* new chip */
      i=128;
      break;
    case 0xda: /* new chip */
      i=256;
      break;
    default:
      debug("This should never happen (id2mem)!\n");      
      exit (1);
    }
  return i;
}      

BYTE *
mpio_id2manufacturer(BYTE id)
{
  BYTE *m;
  switch(id) 
    {
    case 0xec:
      m="Samsung";      
      break;
    case 0x98:
      m="Toshiba";
      break;
    default:
      m="unknown";
    }  
  return m;
}

BYTE
mpio_id_valid(BYTE id)
{
  switch(id) 
    {
    case 0xec:   /* Samsung */
    case 0x98:   /* Toshiba */
      return 1;      
    default:
      ;
    }  

  return 0;
}

void
mpio_id2geo(BYTE id, mpio_disk_phy_t *geo)
{
  switch(id) 
    {
    case 0xea:
      *geo = MPIO_DISK_GEO_002;
      break;
    case 0xe3:  /* Samsung */
    case 0xe5:  /* Toshiba */
      *geo = MPIO_DISK_GEO_004;
      break;
    case 0xe6:
      *geo = MPIO_DISK_GEO_008;
      break;
    case 0x73:
      *geo = MPIO_DISK_GEO_016;
      break;
    case 0x75:
      *geo = MPIO_DISK_GEO_032;
      break;
    case 0x76:
      *geo = MPIO_DISK_GEO_064;
      break;
    case 0x79:
    case 0xf1: /* new chip */
      *geo = MPIO_DISK_GEO_128;
      break;
    case 0xda: /* new chip */
      *geo = MPIO_DISK_GEO_256;
      break;
    default:
      debug("This should never happen!\n");      
      exit (1);      
    }
  
  return;
}

BYTE
mpio_id2version(BYTE id)
{
  switch(id) 
    {
    case 0xf1:   /* 128MB new Samsung */
    case 0xda:   /* 256MB new Samsung */
      return 1;      
    default:
      ;
    }

  return 0;
}