sdelfloader/loader/source/diskio.c

   1 /*
   2  *  Copyright (C) 2008 svpe, #wiidev at efnet
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License version 2
   6  *  as published by the Free Software Foundation
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17 #include <gccore.h>
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include "sdio.h"
  22 #include "diskio.h"
  23
  24
  25 DSTATUS disk_initialize (BYTE drv)
  26 {
  27         s32 r;
  28         if(drv != 0)
  29                 return RES_PARERR;
  30
  31         r = sd_init();
  32
  33         if(r == 0)
  34                 return RES_OK;
  35         else
  36                 return RES_NOTRDY;
  37 }
  38
  39 DSTATUS disk_status ( BYTE drv )
  40 {
  41         return RES_OK;
  42 }
  43
  44 DRESULT disk_read (
  45   BYTE drv,             /* Physical drive nmuber (0) */
  46   BYTE *buff,           /* Data buffer to store read data */
  47   DWORD sector,         /* Sector number (LBA) */
  48   BYTE count            /* Sector count (1..255) */
  49 )
  50 {
  51         s32 r = -1;
  52         u32 i;
  53
  54         for(i = 0; i < count; i++)
  55         {
  56                 r = sd_read(sector + i, buff + (0x200 * i));
  57                 if(r < 0)
  58                         return RES_NOTRDY;
  59         }
  60
  61         return RES_OK;
  62 }
  63
  64 DRESULT disk_ioctl (
  65   BYTE drv,             /* Physical drive nmuber */
  66   BYTE ctrl,            /* Control code */
  67   void *buff            /* Buffer to send/receive data block */
  68 )
  69 {
  70         return RES_OK;
  71 }
  72
  73 u32 get_fattime( void )
  74 {
  75         return 0;
  76 }
  77