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Don't write to blacklisted PCI functions either

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svn path=/trunk/; revision=11984
This commit is contained in:
Gé van Geldorp
2004-12-08 21:53:24 +00:00
parent de75857e68
commit e00f8cf1fd
1 changed files with 38 additions and 7 deletions
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reactos/hal/halx86/xbox/pci_xbox.c
+38 -7
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@@ -1,4 +1,4 @@
/* $Id: pci_xbox.c,v 1.1 2004/12/04 22:52:59 gvg Exp $
/* $Id: pci_xbox.c,v 1.2 2004/12/08 21:53:24 gvg Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@@ -21,12 +21,18 @@
/* VARIABLES ***************************************************************/
static ULONG (* STDCALL GenericGetPciData)(PBUS_HANDLER BusHandler,
ULONG BusNumber,
ULONG SlotNumber,
PVOID Buffer,
ULONG Offset,
ULONG Length);
static ULONG (STDCALL *GenericGetPciData)(PBUS_HANDLER BusHandler,
ULONG BusNumber,
ULONG SlotNumber,
PVOID Buffer,
ULONG Offset,
ULONG Length);
static ULONG (STDCALL *GenericSetPciData)(PBUS_HANDLER BusHandler,
ULONG BusNumber,
ULONG SlotNumber,
PVOID Buffer,
ULONG Offset,
ULONG Length);
/* FUNCTIONS ***************************************************************/
@@ -58,6 +64,29 @@ HalpXboxGetPciData(PBUS_HANDLER BusHandler,
return GenericGetPciData(BusHandler, BusNumber, SlotNumber, Buffer, Offset, Length);
}
static ULONG STDCALL
HalpXboxSetPciData(PBUS_HANDLER BusHandler,
ULONG BusNumber,
ULONG SlotNumber,
PVOID Buffer,
ULONG Offset,
ULONG Length)
{
DPRINT("HalpXboxSetPciData() called.\n");
DPRINT(" BusNumber %lu\n", BusNumber);
DPRINT(" SlotNumber %lu\n", SlotNumber);
DPRINT(" Offset 0x%lx\n", Offset);
DPRINT(" Length 0x%lx\n", Length);
if (0 == BusNumber && (1 == ((SlotNumber >> 5) & 0x07) || 2 == ((SlotNumber >> 5) & 0x07)))
{
DPRINT1("Trying to set data on blacklisted PCI slot\n");
return 0;
}
return GenericSetPciData(BusHandler, BusNumber, SlotNumber, Buffer, Offset, Length);
}
void
HalpXboxInitPciBus(ULONG BusNumber, PBUS_HANDLER BusHandler)
{
@@ -65,6 +94,8 @@ HalpXboxInitPciBus(ULONG BusNumber, PBUS_HANDLER BusHandler)
{
GenericGetPciData = BusHandler->GetBusData;
BusHandler->GetBusData = HalpXboxGetPciData;
GenericSetPciData = BusHandler->SetBusData;
BusHandler->SetBusData = HalpXboxSetPciData;
}
}