[ros-arm-bringup] 34665: - We have to unpack the BIOS block before actually reading it. - Now we correctly read 512 bytes per sector instead of 0. - We are almost there!

Author: ros-arm-bringup
Date: Tue Jul 22 02:12:05 2008
New Revision: 34665

URL: http://svn.reactos.org/svn/reactos?rev=34665&view=rev
Log:
- We have to unpack the BIOS block before actually reading it.
- Now we correctly read 512 bytes per sector instead of 0.
- We are almost there!


Modified:
    trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c

Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd…
==============================================================================
--- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 02:12:05
2008
@@ -412,6 +412,7 @@
     WCHAR LocalBuffer[16];
     UNICODE_STRING SymbolicLinkName, DriveString, GuidString, DeviceName;
     PPACKED_BOOT_SECTOR BootSector;
+    BIOS_PARAMETER_BLOCK BiosBlock;
     ULONG BytesPerSector, SectorsPerTrack, Heads, BytesRead;
     PVOID BaseAddress;
     LARGE_INTEGER CurrentOffset;
@@ -668,9 +669,10 @@
                 // Get the data
                 //
                 BootSector = (PPACKED_BOOT_SECTOR)BaseAddress;
-                BytesPerSector = BootSector->PackedBpb.BytesPerSector[0];
-                SectorsPerTrack = BootSector->PackedBpb.SectorsPerTrack[0];
-                Heads = BootSector->PackedBpb.Heads[0];
+                FatUnpackBios(&BiosBlock, &BootSector->PackedBpb);
+                BytesPerSector = BiosBlock.BytesPerSector;
+                SectorsPerTrack = BiosBlock.SectorsPerTrack;
+                Heads = BiosBlock.Heads;
                 
                 //
                 // Save it