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[FREELDR] i386/hwdisk.c: Use FIRST_BIOS_DISK and FIRST_PARTITION macros like what's done in UEFI code.

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Hermès Bélusca-Maïto 2024-03-09 11:25:10 +01:00
parent 6185c66c61
commit 1e409e6902
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GPG key ID: 3B2539C65E7B93D0
1 changed files with 15 additions and 12 deletions
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27
boot/freeldr/freeldr/arch/i386/hwdisk.c
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@ -28,6 +28,9 @@ DBG_DEFAULT_CHANNEL(HWDETECT);
* This is the common code for harddisk for both the PC and the XBOX.
*/
#define FIRST_BIOS_DISK 0x80
#define FIRST_PARTITION 1
typedef struct tagDISKCONTEXT
{
UCHAR DriveNumber;
@ -248,7 +251,7 @@ static const DEVVTBL DiskVtbl =
PCHAR
GetHarddiskIdentifier(UCHAR DriveNumber)
{
return PcDiskIdentifier[DriveNumber - 0x80];
return PcDiskIdentifier[DriveNumber - FIRST_BIOS_DISK];
}
static VOID
@ -262,7 +265,7 @@ GetHarddiskInformation(UCHAR DriveNumber)
BOOLEAN ValidPartitionTable;
CHAR ArcName[MAX_PATH];
PARTITION_TABLE_ENTRY PartitionTableEntry;
PCHAR Identifier = PcDiskIdentifier[DriveNumber - 0x80];
PCHAR Identifier = PcDiskIdentifier[DriveNumber - FIRST_BIOS_DISK];
/* Detect disk partition type */
DiskDetectPartitionType(DriveNumber);
@ -272,7 +275,7 @@ GetHarddiskInformation(UCHAR DriveNumber)
{
ERR("Reading MBR failed\n");
/* We failed, use a default identifier */
sprintf(Identifier, "BIOSDISK%d", DriveNumber - 0x80 + 1);
sprintf(Identifier, "BIOSDISK%d", DriveNumber - FIRST_BIOS_DISK + 1);
return;
}
@ -294,20 +297,20 @@ GetHarddiskInformation(UCHAR DriveNumber)
ValidPartitionTable = (Mbr->MasterBootRecordMagic == 0xAA55);
/* Fill out the ARC disk block */
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)", DriveNumber - 0x80);
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)", DriveNumber - FIRST_BIOS_DISK);
AddReactOSArcDiskInfo(ArcName, Signature, Checksum, ValidPartitionTable);
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(0)", DriveNumber - 0x80);
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(0)", DriveNumber - FIRST_BIOS_DISK);
FsRegisterDevice(ArcName, &DiskVtbl);
/* Add partitions */
i = 1;
i = FIRST_PARTITION;
DiskReportError(FALSE);
while (DiskGetPartitionEntry(DriveNumber, i, &PartitionTableEntry))
{
if (PartitionTableEntry.SystemIndicator != PARTITION_ENTRY_UNUSED)
{
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(%lu)", DriveNumber - 0x80, i);
sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(%lu)", DriveNumber - FIRST_BIOS_DISK, i);
FsRegisterDevice(ArcName, &DiskVtbl);
}
i++;
@ -350,7 +353,7 @@ EnumerateHarddisks(OUT PBOOLEAN BootDriveReported)
/* Count the number of visible harddisk drives */
DiskReportError(FALSE);
DiskCount = 0;
DriveNumber = 0x80;
DriveNumber = FIRST_BIOS_DISK;
ASSERT(DiskReadBufferSize > 0);
@ -432,7 +435,7 @@ DiskGetBootPath(BOOLEAN IsPxe)
// RtlStringCbPrintfA(FrLdrBootPath, sizeof(FrLdrBootPath), "ramdisk(%u)", 0);
RtlStringCbCopyA(FrLdrBootPath, sizeof(FrLdrBootPath), "ramdisk(0)");
}
else if (FrldrBootDrive < 0x80)
else if (FrldrBootDrive < FIRST_BIOS_DISK)
{
/* This is a floppy */
RtlStringCbPrintfA(FrLdrBootPath, sizeof(FrLdrBootPath),
@ -442,7 +445,7 @@ DiskGetBootPath(BOOLEAN IsPxe)
{
/* Boot Partition 0xFF is the magic value that indicates booting from CD-ROM (see isoboot.S) */
RtlStringCbPrintfA(FrLdrBootPath, sizeof(FrLdrBootPath),
"multi(0)disk(0)cdrom(%u)", FrldrBootDrive - 0x80);
"multi(0)disk(0)cdrom(%u)", FrldrBootDrive - FIRST_BIOS_DISK);
}
else
{
@ -460,7 +463,7 @@ DiskGetBootPath(BOOLEAN IsPxe)
RtlStringCbPrintfA(FrLdrBootPath, sizeof(FrLdrBootPath),
"multi(0)disk(0)rdisk(%u)partition(%lu)",
FrldrBootDrive - 0x80, FrldrBootPartition);
FrldrBootDrive - FIRST_BIOS_DISK, FrldrBootPartition);
}
return TRUE;
@ -479,7 +482,7 @@ PcInitializeBootDevices(VOID)
DiskGetBootPath(PxeInit());
/* Add it, if it's a floppy or cdrom */
if ((FrldrBootDrive >= 0x80 && !BootDriveReported) ||
if ((FrldrBootDrive >= FIRST_BIOS_DISK && !BootDriveReported) ||
DiskIsDriveRemovable(FrldrBootDrive))
{
/* TODO: Check if it's really a CDROM drive */