[hpoussin] 43124: Partly unregress Xbox 1 port. It now fails with INACCESSIBLE_BOOT_DEVICE bugcheck

Author: hpoussin
Date: Wed Sep 23 22:59:08 2009
New Revision: 43124

URL: http://svn.reactos.org/svn/reactos?rev=43124&view=rev
Log:
Partly unregress Xbox 1 port. It now fails with INACCESSIBLE_BOOT_DEVICE bugcheck

Modified:
    trunk/reactos/boot/freeldr/freeldr/arch/i386/xboxhw.c
    trunk/reactos/hal/halx86/xbox/part_xbox.c

Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/xboxhw.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arch/i386/xboxhw.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/arch/i386/xboxhw.c [iso-8859-1] Wed Sep 23 22:59:08
2009
@@ -99,6 +99,123 @@
     return PartialResourceList;
 }
 
+typedef struct tagDISKCONTEXT
+{
+    ULONG DriveNumber;
+    ULONG SectorSize;
+    ULONGLONG SectorOffset;
+    ULONGLONG SectorCount;
+    ULONGLONG SectorNumber;
+} DISKCONTEXT;
+
+static LONG DiskClose(ULONG FileId)
+{
+    DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
+
+    MmHeapFree(Context);
+    return ESUCCESS;
+}
+
+static LONG DiskGetFileInformation(ULONG FileId, FILEINFORMATION* Information)
+{
+    DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
+
+    RtlZeroMemory(Information, sizeof(FILEINFORMATION));
+    Information->EndingAddress.QuadPart = (Context->SectorOffset +
Context->SectorCount) * Context->SectorSize;
+    Information->CurrentAddress.LowPart = (Context->SectorOffset +
Context->SectorNumber) * Context->SectorSize;
+
+    return ESUCCESS;
+}
+
+static LONG DiskOpen(CHAR* Path, OPENMODE OpenMode, ULONG* FileId)
+{
+    DISKCONTEXT* Context;
+    ULONG DriveNumber, DrivePartition, SectorSize;
+    ULONGLONG SectorOffset = 0;
+    ULONGLONG SectorCount = 0;
+    PARTITION_TABLE_ENTRY PartitionTableEntry;
+    CHAR FileName[1];
+
+    if (!DissectArcPath(Path, FileName, &DriveNumber, &DrivePartition))
+        return EINVAL;
+    SectorSize = (DrivePartition == 0xff ? 2048 : 512);
+    if (DrivePartition != 0xff && DrivePartition != 0)
+    {
+        if (!MachDiskGetPartitionEntry(DriveNumber, DrivePartition,
&PartitionTableEntry))
+            return EINVAL;
+        SectorOffset = PartitionTableEntry.SectorCountBeforePartition;
+        SectorCount = PartitionTableEntry.PartitionSectorCount;
+    }
+    else
+    {
+        SectorCount = 0; /* FIXME */
+    }
+
+    Context = MmHeapAlloc(sizeof(DISKCONTEXT));
+    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 LONG DiskRead(ULONG FileId, VOID* Buffer, ULONG N, ULONG* Count)
+{
+    DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
+    UCHAR* Ptr = (UCHAR*)Buffer;
+    ULONG i, Length;
+    BOOLEAN ret;
+
+    *Count = 0;
+    i = 0;
+    while (N > 0)
+    {
+        Length = N;
+        if (Length > Context->SectorSize)
+            Length = Context->SectorSize;
+        ret = MachDiskReadLogicalSectors(
+            Context->DriveNumber,
+            Context->SectorNumber + Context->SectorOffset + i,
+            1,
+            (PVOID)DISKREADBUFFER);
+        if (!ret)
+            return EIO;
+        RtlCopyMemory(Ptr, (PVOID)DISKREADBUFFER, Length);
+        Ptr += Length;
+        *Count += Length;
+        N -= Length;
+        i++;
+    }
+
+    return ESUCCESS;
+}
+
+static LONG 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,
@@ -110,6 +227,7 @@
   ULONG Checksum;
   ULONG Signature;
   CHAR ArcName[256];
+  PARTITION_TABLE_ENTRY PartitionTableEntry;
 
   /* Read the MBR */
   if (!MachDiskReadLogicalSectors(DriveNumber, 0ULL, 1, (PVOID)DISKREADBUFFER))
@@ -141,6 +259,23 @@
   reactos_arc_disk_info[reactos_disk_count].ArcName =
       reactos_arc_strings[reactos_disk_count];
   reactos_disk_count++;
+
+  sprintf(ArcName, "multi(0)disk(0)rdisk(%lu)partition(0)", DriveNumber -
0x80);
+  FsRegisterDevice(ArcName, &DiskVtbl);
+
+  /* Add partitions */
+  i = 1;
+  DiskReportError(FALSE);
+  while (MachDiskGetPartitionEntry(DriveNumber, i, &PartitionTableEntry))
+  {
+    if (PartitionTableEntry.SystemIndicator != PARTITION_ENTRY_UNUSED)
+    {
+      sprintf(ArcName, "multi(0)disk(0)rdisk(%lu)partition(%lu)", DriveNumber -
0x80, i);
+      FsRegisterDevice(ArcName, &DiskVtbl);
+    }
+    i++;
+  }
+  DiskReportError(TRUE);
 
   /* Convert checksum and signature to identifier string */
   Identifier[0] = Hex[(Checksum >> 28) & 0x0F];

Modified: trunk/reactos/hal/halx86/xbox/part_xbox.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/hal/halx86/xbox/part_xbox.…
==============================================================================
--- trunk/reactos/hal/halx86/xbox/part_xbox.c [iso-8859-1] (original)
+++ trunk/reactos/hal/halx86/xbox/part_xbox.c [iso-8859-1] Wed Sep 23 22:59:08 2009
@@ -199,10 +199,11 @@
                                             ReturnRecognizedPartitions,
PartitionBuffer);
     }
 
-    *PartitionBuffer = (PDRIVE_LAYOUT_INFORMATION)
-                       ExAllocatePool(PagedPool,
-                                      sizeof(DRIVE_LAYOUT_INFORMATION) +
-                                      XBOX_PARTITION_COUNT *
sizeof(PARTITION_INFORMATION));
+    *PartitionBuffer = (PDRIVE_LAYOUT_INFORMATION)ExAllocatePoolWithTag(
+                        PagedPool,
+                        sizeof(DRIVE_LAYOUT_INFORMATION) +
+                        XBOX_PARTITION_COUNT * sizeof(PARTITION_INFORMATION),
+                        'SYSF');
     if (NULL == *PartitionBuffer)
     {
         return STATUS_NO_MEMORY;