[FREELDR]: Do not build Disk/Partition support for ARM, we use ram disks.
[reactos.git] / 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 along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #ifndef _M_ARM
21 #include <freeldr.h>
22 #include <debug.h>
23
24 #undef UNIMPLEMENTED
25 #define UNIMPLEMENTED BugCheck((DPRINT_WARNING, "Unimplemented\n"));
26
27 static BOOLEAN bReportError = TRUE;
28
29 /////////////////////////////////////////////////////////////////////////////////////////////
30 // FUNCTIONS
31 /////////////////////////////////////////////////////////////////////////////////////////////
32
33 VOID DiskReportError (BOOLEAN bError)
34 {
35 bReportError = bError;
36 }
37
38 VOID DiskError(PCSTR ErrorString, ULONG ErrorCode)
39 {
40 CHAR ErrorCodeString[200];
41
42 if (bReportError == FALSE)
43 return;
44
45 sprintf(ErrorCodeString, "%s\n\nError Code: 0x%lx\nError: %s", ErrorString, ErrorCode, DiskGetErrorCodeString(ErrorCode));
46
47 DPRINTM(DPRINT_DISK, "%s\n", ErrorCodeString);
48
49 UiMessageBox(ErrorCodeString);
50 }
51
52 PCSTR DiskGetErrorCodeString(ULONG ErrorCode)
53 {
54 switch (ErrorCode)
55 {
56 case 0x00: return "no error";
57 case 0x01: return "bad command passed to driver";
58 case 0x02: return "address mark not found or bad sector";
59 case 0x03: return "diskette write protect error";
60 case 0x04: return "sector not found";
61 case 0x05: return "fixed disk reset failed";
62 case 0x06: return "diskette changed or removed";
63 case 0x07: return "bad fixed disk parameter table";
64 case 0x08: return "DMA overrun";
65 case 0x09: return "DMA access across 64k boundary";
66 case 0x0A: return "bad fixed disk sector flag";
67 case 0x0B: return "bad fixed disk cylinder";
68 case 0x0C: return "unsupported track/invalid media";
69 case 0x0D: return "invalid number of sectors on fixed disk format";
70 case 0x0E: return "fixed disk controlled data address mark detected";
71 case 0x0F: return "fixed disk DMA arbitration level out of range";
72 case 0x10: return "ECC/CRC error on disk read";
73 case 0x11: return "recoverable fixed disk data error, data fixed by ECC";
74 case 0x20: return "controller error (NEC for floppies)";
75 case 0x40: return "seek failure";
76 case 0x80: return "time out, drive not ready";
77 case 0xAA: return "fixed disk drive not ready";
78 case 0xBB: return "fixed disk undefined error";
79 case 0xCC: return "fixed disk write fault on selected drive";
80 case 0xE0: return "fixed disk status error/Error reg = 0";
81 case 0xFF: return "sense operation failed";
82
83 default: return "unknown error code";
84 }
85 }
86
87 // This function is in arch/i386/i386disk.c
88 //BOOLEAN DiskReadLogicalSectors(ULONG DriveNumber, U64 SectorNumber, ULONG SectorCount, PVOID Buffer)
89
90 BOOLEAN DiskIsDriveRemovable(ULONG DriveNumber)
91 {
92 // Hard disks use drive numbers >= 0x80
93 // So if the drive number indicates a hard disk
94 // then return FALSE
95 // 0x49 is our magic ramdisk drive, so return FALSE for that too
96 if ((DriveNumber >= 0x80) || (DriveNumber == 0x49))
97 {
98 return FALSE;
99 }
100
101 // Drive is a floppy diskette so return TRUE
102 return TRUE;
103 }
104
105 BOOLEAN
106 DiskGetBootPath(char *BootPath, unsigned Size)
107 {
108 static char Path[] = "multi(0)disk(0)";
109 char Device[4];
110
111 _itoa(BootDrive, Device, 10);
112 if (Size <= sizeof(Path) + 6 + strlen(Device))
113 {
114 return FALSE;
115 }
116 strcpy(BootPath, Path);
117 strcat(BootPath, BootDrive < 0x80 ? "fdisk" : "cdrom");
118 strcat(strcat(strcat(BootPath, "("), Device), ")");
119
120 if (strcmp(BootPath, "multi(0)disk(0)cdrom(128)") == 0)
121 strcpy(BootPath, "multi(0)disk(0)rdisk(0)partition(1)");
122 return TRUE;
123 }
124
125 BOOLEAN
126 DiskNormalizeSystemPath(char *SystemPath, unsigned Size)
127 {
128 CHAR BootPath[256];
129 ULONG PartitionNumber;
130 ULONG DriveNumber;
131 PARTITION_TABLE_ENTRY PartEntry;
132 char *p;
133
134 if (!DissectArcPath(SystemPath, BootPath, &DriveNumber, &PartitionNumber))
135 {
136 return FALSE;
137 }
138
139 if (0 != PartitionNumber)
140 {
141 return TRUE;
142 }
143
144 if (! DiskGetActivePartitionEntry(DriveNumber,
145 &PartEntry,
146 &PartitionNumber) ||
147 PartitionNumber < 1 || 9 < PartitionNumber)
148 {
149 return FALSE;
150 }
151
152 p = SystemPath;
153 while ('\0' != *p && 0 != _strnicmp(p, "partition(", 10)) {
154 p++;
155 }
156 p = strchr(p, ')');
157 if (NULL == p || '0' != *(p - 1)) {
158 return FALSE;
159 }
160 *(p - 1) = '0' + PartitionNumber;
161
162 return TRUE;
163 }
164
165
166 // This function is in arch/i386/i386disk.c
167 //VOID DiskStopFloppyMotor(VOID)
168
169 // This function is in arch/i386/i386disk.c
170 //ULONG DiskGetCacheableBlockCount(ULONG DriveNumber)
171
172 #endif