+++ /dev/null
-/*
- * FreeLoader
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <freeldr.h>
-
-#define NDEBUG
-#include <debug.h>
-
-DBG_DEFAULT_CHANNEL(HWDETECT);
-
-static CHAR Hex[] = "0123456789ABCDEF";
-//static unsigned int delay_count = 1;
-
-extern ULONG reactos_disk_count;
-extern ARC_DISK_SIGNATURE_EX reactos_arc_disk_info[];
-
-static
-PCM_PARTIAL_RESOURCE_LIST
-GetHarddiskConfigurationData(UCHAR DriveNumber, ULONG* pSize)
-{
- PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
- PCM_DISK_GEOMETRY_DEVICE_DATA DiskGeometry;
- //EXTENDED_GEOMETRY ExtGeometry;
- GEOMETRY Geometry;
- ULONG Size;
-
- //
- // Initialize returned size
- //
- *pSize = 0;
-
- /* Set 'Configuration Data' value */
- Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
- sizeof(CM_DISK_GEOMETRY_DEVICE_DATA);
- PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
- if (PartialResourceList == NULL)
- {
- ERR("Failed to allocate a full resource descriptor\n");
- return NULL;
- }
-
- memset(PartialResourceList, 0, Size);
- PartialResourceList->Version = 1;
- PartialResourceList->Revision = 1;
- PartialResourceList->Count = 1;
- PartialResourceList->PartialDescriptors[0].Type =
- CmResourceTypeDeviceSpecific;
-// PartialResourceList->PartialDescriptors[0].ShareDisposition =
-// PartialResourceList->PartialDescriptors[0].Flags =
- PartialResourceList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
- sizeof(CM_DISK_GEOMETRY_DEVICE_DATA);
-
- /* Get pointer to geometry data */
- DiskGeometry = (PVOID)(((ULONG_PTR)PartialResourceList) + sizeof(CM_PARTIAL_RESOURCE_LIST));
-
- /* Get the disk geometry */
- //ExtGeometry.Size = sizeof(EXTENDED_GEOMETRY);
-
- if (MachDiskGetDriveGeometry(DriveNumber, &Geometry))
- {
- DiskGeometry->BytesPerSector = Geometry.BytesPerSector;
- DiskGeometry->NumberOfCylinders = Geometry.Cylinders;
- DiskGeometry->SectorsPerTrack = Geometry.Sectors;
- DiskGeometry->NumberOfHeads = Geometry.Heads;
- }
- else
- {
- ERR("Reading disk geometry failed\n");
- FrLdrHeapFree(PartialResourceList, TAG_HW_RESOURCE_LIST);
- return NULL;
- }
- TRACE("Disk %x: %u Cylinders %u Heads %u Sectors %u Bytes\n",
- DriveNumber,
- DiskGeometry->NumberOfCylinders,
- DiskGeometry->NumberOfHeads,
- DiskGeometry->SectorsPerTrack,
- DiskGeometry->BytesPerSector);
-
- //
- // Return configuration data
- //
- *pSize = Size;
- return PartialResourceList;
-}
-
-typedef struct tagDISKCONTEXT
-{
- UCHAR DriveNumber;
- ULONG SectorSize;
- ULONGLONG SectorOffset;
- ULONGLONG SectorCount;
- ULONGLONG SectorNumber;
-} DISKCONTEXT;
-
-static
-ARC_STATUS
-DiskClose(ULONG FileId)
-{
- DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
-
- FrLdrTempFree(Context, TAG_HW_DISK_CONTEXT);
- return ESUCCESS;
-}
-
-static
-ARC_STATUS
-DiskGetFileInformation(ULONG FileId, FILEINFORMATION* Information)
-{
- DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
-
- RtlZeroMemory(Information, sizeof(FILEINFORMATION));
- Information->EndingAddress.QuadPart = (Context->SectorOffset + Context->SectorCount) * Context->SectorSize;
- Information->CurrentAddress.QuadPart = (Context->SectorOffset + Context->SectorNumber) * Context->SectorSize;
-
- return ESUCCESS;
-}
-
-static
-ARC_STATUS
-DiskOpen(CHAR* Path, OPENMODE OpenMode, ULONG* FileId)
-{
- DISKCONTEXT* Context;
- ULONG DrivePartition, SectorSize;
- UCHAR DriveNumber;
- ULONGLONG SectorOffset = 0;
- ULONGLONG SectorCount = 0;
- PARTITION_TABLE_ENTRY PartitionTableEntry;
- CHAR FileName[1];
-
- if (!DissectArcPath(Path, FileName, &DriveNumber, &DrivePartition))
- return EINVAL;
-
- if (DrivePartition == 0xff)
- {
- /* This is a CD-ROM device */
- SectorSize = 2048;
- }
- else
- {
- /* This is either a floppy disk device (DrivePartition == 0) or
- * a hard disk device (DrivePartition != 0 && DrivePartition != 0xFF) but
- * it doesn't matter which one because they both have 512 bytes per sector */
- SectorSize = 512;
- }
-
- if (DrivePartition != 0xff && DrivePartition != 0)
- {
- if (!XboxDiskGetPartitionEntry(DriveNumber, DrivePartition, &PartitionTableEntry))
- return EINVAL;
- SectorOffset = PartitionTableEntry.SectorCountBeforePartition;
- SectorCount = PartitionTableEntry.PartitionSectorCount;
- }
- else
- {
- SectorCount = 0; /* FIXME */
- }
-
- Context = FrLdrTempAlloc(sizeof(DISKCONTEXT), TAG_HW_DISK_CONTEXT);
- if (!Context)
- return ENOMEM;
- Context->DriveNumber = DriveNumber;
- Context->SectorSize = SectorSize;
- Context->SectorOffset = SectorOffset;
- Context->SectorCount = SectorCount;
- Context->SectorNumber = 0;
- FsSetDeviceSpecific(*FileId, Context);
-
- return ESUCCESS;
-}
-
-static
-ARC_STATUS
-DiskRead(ULONG FileId, VOID* Buffer, ULONG N, ULONG* Count)
-{
- DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
- UCHAR* Ptr = (UCHAR*)Buffer;
- ULONG i, Length, Sectors;
- BOOLEAN ret;
-
- *Count = 0;
- i = 0;
- while (N > 0)
- {
- Length = N;
- if (Length > DiskReadBufferSize)
- Length = DiskReadBufferSize;
- Sectors = (Length + Context->SectorSize - 1) / Context->SectorSize;
- ret = MachDiskReadLogicalSectors(
- Context->DriveNumber,
- Context->SectorNumber + Context->SectorOffset + i,
- Sectors,
- DiskReadBuffer);
- if (!ret)
- return EIO;
- RtlCopyMemory(Ptr, DiskReadBuffer, Length);
- Ptr += Length;
- *Count += Length;
- N -= Length;
- i += Sectors;
- }
-
- return ESUCCESS;
-}
-
-static
-ARC_STATUS
-DiskSeek(ULONG FileId, LARGE_INTEGER* Position, SEEKMODE SeekMode)
-{
- DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
-
- if (SeekMode != SeekAbsolute)
- return EINVAL;
- if (Position->LowPart & (Context->SectorSize - 1))
- return EINVAL;
-
- /* FIXME: take HighPart into account */
- Context->SectorNumber = Position->LowPart / Context->SectorSize;
- return ESUCCESS;
-}
-
-static const DEVVTBL DiskVtbl =
-{
- DiskClose,
- DiskGetFileInformation,
- DiskOpen,
- DiskRead,
- DiskSeek,
-};
-
-static
-VOID
-GetHarddiskIdentifier(PCHAR Identifier,
- UCHAR DriveNumber)
-{
- PMASTER_BOOT_RECORD Mbr;
- PULONG Buffer;
- ULONG i;
- ULONG Checksum;
- ULONG Signature;
- CHAR ArcName[MAX_PATH];
- PARTITION_TABLE_ENTRY PartitionTableEntry;
-
- /* Read the MBR */
- if (!MachDiskReadLogicalSectors(DriveNumber, 0ULL, 1, DiskReadBuffer))
- {
- ERR("Reading MBR failed\n");
- return;
- }
-
- Buffer = (ULONG*)DiskReadBuffer;
- Mbr = (PMASTER_BOOT_RECORD)DiskReadBuffer;
-
- Signature = Mbr->Signature;
- TRACE("Signature: %x\n", Signature);
-
- /* Calculate the MBR checksum */
- Checksum = 0;
- for (i = 0; i < 512 / sizeof(ULONG); i++)
- {
- Checksum += Buffer[i];
- }
- Checksum = ~Checksum + 1;
- TRACE("Checksum: %x\n", Checksum);
-
- /* Fill out the ARC disk block */
- reactos_arc_disk_info[reactos_disk_count].DiskSignature.Signature = Signature;
- reactos_arc_disk_info[reactos_disk_count].DiskSignature.CheckSum = Checksum;
- sprintf(ArcName, "multi(0)disk(0)rdisk(%lu)", reactos_disk_count);
- strcpy(reactos_arc_disk_info[reactos_disk_count].ArcName, ArcName);
- reactos_arc_disk_info[reactos_disk_count].DiskSignature.ArcName =
- reactos_arc_disk_info[reactos_disk_count].ArcName;
- reactos_disk_count++;
-
- sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(0)", DriveNumber - 0x80);
- FsRegisterDevice(ArcName, &DiskVtbl);
-
- /* Add partitions */
- i = 1;
- DiskReportError(FALSE);
- while (XboxDiskGetPartitionEntry(DriveNumber, i, &PartitionTableEntry))
- {
- if (PartitionTableEntry.SystemIndicator != PARTITION_ENTRY_UNUSED)
- {
- sprintf(ArcName, "multi(0)disk(0)rdisk(%u)partition(%lu)", DriveNumber - 0x80, i);
- FsRegisterDevice(ArcName, &DiskVtbl);
- }
- i++;
- }
- DiskReportError(TRUE);
-
- /* Convert checksum and signature to identifier string */
- Identifier[0] = Hex[(Checksum >> 28) & 0x0F];
- Identifier[1] = Hex[(Checksum >> 24) & 0x0F];
- Identifier[2] = Hex[(Checksum >> 20) & 0x0F];
- Identifier[3] = Hex[(Checksum >> 16) & 0x0F];
- Identifier[4] = Hex[(Checksum >> 12) & 0x0F];
- Identifier[5] = Hex[(Checksum >> 8) & 0x0F];
- Identifier[6] = Hex[(Checksum >> 4) & 0x0F];
- Identifier[7] = Hex[Checksum & 0x0F];
- Identifier[8] = '-';
- Identifier[9] = Hex[(Signature >> 28) & 0x0F];
- Identifier[10] = Hex[(Signature >> 24) & 0x0F];
- Identifier[11] = Hex[(Signature >> 20) & 0x0F];
- Identifier[12] = Hex[(Signature >> 16) & 0x0F];
- Identifier[13] = Hex[(Signature >> 12) & 0x0F];
- Identifier[14] = Hex[(Signature >> 8) & 0x0F];
- Identifier[15] = Hex[(Signature >> 4) & 0x0F];
- Identifier[16] = Hex[Signature & 0x0F];
- Identifier[17] = '-';
- Identifier[18] = 'A';
- Identifier[19] = 0;
- TRACE("Identifier: %s\n", Identifier);
-}
-
-static
-VOID
-DetectBiosDisks(PCONFIGURATION_COMPONENT_DATA SystemKey,
- PCONFIGURATION_COMPONENT_DATA BusKey)
-{
- PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
- PCM_INT13_DRIVE_PARAMETER Int13Drives;
- GEOMETRY Geometry;
- PCONFIGURATION_COMPONENT_DATA DiskKey, ControllerKey;
- UCHAR DiskCount;
- ULONG i;
- ULONG Size;
- BOOLEAN Changed;
-
- /* Count the number of visible drives */
- DiskReportError(FALSE);
- DiskCount = 0;
-
- /* There are some really broken BIOSes out there. There are even BIOSes
- * that happily report success when you ask them to read from non-existent
- * harddisks. So, we set the buffer to known contents first, then try to
- * read. If the BIOS reports success but the buffer contents haven't
- * changed then we fail anyway */
- memset(DiskReadBuffer, 0xcd, DiskReadBufferSize);
- while (MachDiskReadLogicalSectors(0x80 + DiskCount, 0ULL, 1, DiskReadBuffer))
- {
- Changed = FALSE;
- for (i = 0; ! Changed && i < DiskReadBufferSize; i++)
- {
- Changed = ((PUCHAR)DiskReadBuffer)[i] != 0xcd;
- }
- if (! Changed)
- {
- TRACE("BIOS reports success for disk %d but data didn't change\n",
- (int)DiskCount);
- break;
- }
- DiskCount++;
- memset(DiskReadBuffer, 0xcd, DiskReadBufferSize);
- }
- DiskReportError(TRUE);
- TRACE("BIOS reports %d harddisk%s\n",
- (int)DiskCount, (DiskCount == 1) ? "" : "s");
-
- //DetectBiosFloppyController(BusKey);
-
- /* Allocate resource descriptor */
- Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
- sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;
- PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
- if (PartialResourceList == NULL)
- {
- ERR("Failed to allocate resource descriptor\n");
- return;
- }
-
- /* Initialize resource descriptor */
- memset(PartialResourceList, 0, Size);
- PartialResourceList->Version = 1;
- PartialResourceList->Revision = 1;
- PartialResourceList->Count = 1;
- PartialResourceList->PartialDescriptors[0].Type = CmResourceTypeDeviceSpecific;
- PartialResourceList->PartialDescriptors[0].ShareDisposition = 0;
- PartialResourceList->PartialDescriptors[0].Flags = 0;
- PartialResourceList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
- sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;
-
- /* Get harddisk Int13 geometry data */
- Int13Drives = (PVOID)(((ULONG_PTR)PartialResourceList) + sizeof(CM_PARTIAL_RESOURCE_LIST));
- for (i = 0; i < DiskCount; i++)
- {
- if (MachDiskGetDriveGeometry(0x80 + i, &Geometry))
- {
- Int13Drives[i].DriveSelect = 0x80 + i;
- Int13Drives[i].MaxCylinders = Geometry.Cylinders - 1;
- Int13Drives[i].SectorsPerTrack = (USHORT)Geometry.Sectors;
- Int13Drives[i].MaxHeads = (USHORT)Geometry.Heads - 1;
- Int13Drives[i].NumberDrives = DiskCount;
-
- TRACE(
- "Disk %x: %u Cylinders %u Heads %u Sectors %u Bytes\n",
- 0x80 + i,
- Geometry.Cylinders - 1,
- Geometry.Heads - 1,
- Geometry.Sectors,
- Geometry.BytesPerSector);
- }
- }
-
- FldrCreateComponentKey(BusKey,
- ControllerClass,
- DiskController,
- Output | Input,
- 0,
- 0xFFFFFFFF,
- NULL,
- PartialResourceList,
- Size,
- &ControllerKey);
- TRACE("Created key: DiskController\\0\n");
-
- /* Create and fill subkey for each harddisk */
- for (i = 0; i < DiskCount; i++)
- {
- CHAR Identifier[20];
-
- /* Get disk values */
- PartialResourceList = GetHarddiskConfigurationData(0x80 + i, &Size);
- GetHarddiskIdentifier(Identifier, 0x80 + i);
-
- /* Create disk key */
- FldrCreateComponentKey(ControllerKey,
- PeripheralClass,
- DiskPeripheral,
- Output | Input,
- 0,
- 0xFFFFFFFF,
- Identifier,
- PartialResourceList,
- Size,
- &DiskKey);
- }
-}
-
-static
-VOID
-DetectIsaBios(PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
-{
- PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
- PCONFIGURATION_COMPONENT_DATA BusKey;
- ULONG Size;
-
- /* Set 'Configuration Data' value */
- Size = sizeof(CM_PARTIAL_RESOURCE_LIST) -
- sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
- PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
- if (PartialResourceList == NULL)
- {
- TRACE(
- "Failed to allocate resource descriptor\n");
- return;
- }
-
- /* Initialize resource descriptor */
- memset(PartialResourceList, 0, Size);
- PartialResourceList->Version = 1;
- PartialResourceList->Revision = 1;
- PartialResourceList->Count = 0;
-
- /* Create new bus key */
- FldrCreateComponentKey(SystemKey,
- AdapterClass,
- MultiFunctionAdapter,
- 0x0,
- 0x0,
- 0xFFFFFFFF,
- "ISA",
- PartialResourceList,
- Size,
- &BusKey);
-
- /* Increment bus number */
- (*BusNumber)++;
-
- /* Detect ISA/BIOS devices */
- DetectBiosDisks(SystemKey, BusKey);
-
-
- /* FIXME: Detect more ISA devices */
-}
-
-PCONFIGURATION_COMPONENT_DATA
-XboxHwDetect(VOID)
-{
- PCONFIGURATION_COMPONENT_DATA SystemKey;
- ULONG BusNumber = 0;
-
- TRACE("DetectHardware()\n");
-
- /* Create the 'System' key */
- FldrCreateSystemKey(&SystemKey);
-
- /* TODO: Build actual xbox's hardware configuration tree */
- DetectIsaBios(SystemKey, &BusNumber);
-
- TRACE("DetectHardware() Done\n");
- return SystemKey;
-}
-
-BOOLEAN
-XboxInitializeBootDevices(VOID)
-{
- // Emulate old behavior
- return XboxHwDetect() != NULL;
-}
-
-VOID XboxHwIdle(VOID)
-{
- /* UNIMPLEMENTED */
-}
-
-/* EOF */
projects / reactos.git / blobdiff