reactos/boot/freeldr/freeldr/disk/disk.c

   1 /*
   2  *  FreeLoader
   3  *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #include <freeldr.h>
  21
  22 #define NDEBUG
  23 #include <debug.h>
  24
  25 #undef  UNIMPLEMENTED
  26 #define UNIMPLEMENTED   BugCheck((DPRINT_WARNING, "Unimplemented\n"));
  27
  28 static BOOL bReportError = TRUE;
  29
  30 /////////////////////////////////////////////////////////////////////////////////////////////
  31 // FUNCTIONS
  32 /////////////////////////////////////////////////////////////////////////////////////////////
  33
  34 VOID DiskReportError (BOOL bError)
  35 {
  36         bReportError = bError;
  37 }
  38
  39 VOID DiskError(PCSTR ErrorString, ULONG ErrorCode)
  40 {
  41         CHAR    ErrorCodeString[200];
  42
  43         if (bReportError == FALSE)
  44                 return;
  45
  46         sprintf(ErrorCodeString, "%s\n\nError Code: 0x%x\nError: %s", ErrorString, ErrorCode, DiskGetErrorCodeString(ErrorCode));
  47
  48         DbgPrint((DPRINT_DISK, "%s\n", ErrorCodeString));
  49
  50         UiMessageBox(ErrorCodeString);
  51 }
  52
  53 PCSTR DiskGetErrorCodeString(ULONG ErrorCode)
  54 {
  55         switch (ErrorCode)
  56         {
  57         case 0x00:  return "no error";
  58         case 0x01:  return "bad command passed to driver";
  59         case 0x02:  return "address mark not found or bad sector";
  60         case 0x03:  return "diskette write protect error";
  61         case 0x04:  return "sector not found";
  62         case 0x05:  return "fixed disk reset failed";
  63         case 0x06:  return "diskette changed or removed";
  64         case 0x07:  return "bad fixed disk parameter table";
  65         case 0x08:  return "DMA overrun";
  66         case 0x09:  return "DMA access across 64k boundary";
  67         case 0x0A:  return "bad fixed disk sector flag";
  68         case 0x0B:  return "bad fixed disk cylinder";
  69         case 0x0C:  return "unsupported track/invalid media";
  70         case 0x0D:  return "invalid number of sectors on fixed disk format";
  71         case 0x0E:  return "fixed disk controlled data address mark detected";
  72         case 0x0F:  return "fixed disk DMA arbitration level out of range";
  73         case 0x10:  return "ECC/CRC error on disk read";
  74         case 0x11:  return "recoverable fixed disk data error, data fixed by ECC";
  75         case 0x20:  return "controller error (NEC for floppies)";
  76         case 0x40:  return "seek failure";
  77         case 0x80:  return "time out, drive not ready";
  78         case 0xAA:  return "fixed disk drive not ready";
  79         case 0xBB:  return "fixed disk undefined error";
  80         case 0xCC:  return "fixed disk write fault on selected drive";
  81         case 0xE0:  return "fixed disk status error/Error reg = 0";
  82         case 0xFF:  return "sense operation failed";
  83
  84         default:  return "unknown error code";
  85         }
  86 }
  87
  88 // This function is in arch/i386/i386disk.c
  89 //BOOL DiskReadLogicalSectors(ULONG DriveNumber, U64 SectorNumber, ULONG SectorCount, PVOID Buffer)
  90
  91 BOOL DiskIsDriveRemovable(ULONG DriveNumber)
  92 {
  93         // Hard disks use drive numbers >= 0x80
  94         // So if the drive number indicates a hard disk
  95         // then return FALSE
  96         if (DriveNumber >= 0x80)
  97         {
  98                 return FALSE;
  99         }
 100
 101         // Drive is a floppy diskette so return TRUE
 102         return TRUE;
 103 }
 104
 105 // This function is in arch/i386/i386disk.c
 106 //VOID DiskStopFloppyMotor(VOID)
 107
 108 // This function is in arch/i386/i386disk.c
 109 //ULONG DiskGetCacheableBlockCount(ULONG DriveNumber)