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- Implemented ScsiPortGetPhysicalAddress() (incomplete).

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- Implemented ScsiPortGetVirtualAddress().

svn path=/trunk/; revision=5994
This commit is contained in:
Eric Kohl 2003-09-05 15:05:52 +00:00
parent 7070f0804a
commit 31b2a95597
1 changed files with 61 additions and 5 deletions
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64
reactos/drivers/storage/scsiport/scsiport.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: scsiport.c,v 1.34 2003/09/05 11:48:03 ekohl Exp $
/* $Id: scsiport.c,v 1.35 2003/09/05 15:05:52 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -402,11 +402,51 @@ ScsiPortGetPhysicalAddress(IN PVOID HwDeviceExtension,
IN PVOID VirtualAddress,
OUT ULONG *Length)
{
PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
SCSI_PHYSICAL_ADDRESS PhysicalAddress;
ULONG BufferLength = 0;
ULONG Offset;
DPRINT1("ScsiPortGetPhysicalAddress(%p %p %p %p)\n",
HwDeviceExtension, Srb, VirtualAddress, Length);
DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
SCSI_PORT_DEVICE_EXTENSION,
MiniPortDeviceExtension);
*Length = 0;
if (Srb == NULL)
{
if ((ULONG_PTR)DeviceExtension->VirtualAddress > (ULONG_PTR)VirtualAddress)
{
PhysicalAddress.QuadPart = 0ULL;
return PhysicalAddress;
}
Offset = (ULONG_PTR)VirtualAddress - (ULONG_PTR)DeviceExtension->VirtualAddress;
if (Offset >= DeviceExtension->CommonBufferLength)
{
PhysicalAddress.QuadPart = 0ULL;
return PhysicalAddress;
}
PhysicalAddress.QuadPart =
DeviceExtension->PhysicalAddress.QuadPart + (ULONGLONG)Offset;
BufferLength = DeviceExtension->CommonBufferLength - Offset;
}
else
{
/* FIXME */
DPRINT1("Srb != NULL is not implemented yet!\n");
UNIMPLEMENTED;
}
*Length = BufferLength;
return PhysicalAddress;
}
/*
* @unimplemented
@ -496,14 +536,30 @@ ScsiPortGetUncachedExtension(IN PVOID HwDeviceExtension,
/*
* @unimplemented
* @implemented
*/
PVOID STDCALL
ScsiPortGetVirtualAddress(IN PVOID HwDeviceExtension,
IN SCSI_PHYSICAL_ADDRESS PhysicalAddress)
{
DPRINT("ScsiPortGetVirtualAddress()\n");
UNIMPLEMENTED;
PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
ULONG Offset;
DPRINT("ScsiPortGetVirtualAddress(%p %I64x)\n",
HwDeviceExtension, PhysicalAddress.QuadPart);
DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
SCSI_PORT_DEVICE_EXTENSION,
MiniPortDeviceExtension);
if (DeviceExtension->PhysicalAddress.QuadPart > PhysicalAddress.QuadPart)
return NULL;
Offset = (ULONG)(PhysicalAddress.QuadPart - DeviceExtension->PhysicalAddress.QuadPart);
if (Offset >= DeviceExtension->CommonBufferLength)
return NULL;
return (PVOID)((ULONG_PTR)DeviceExtension->VirtualAddress + Offset);
}