reactos/drivers/bus/pcix/arb/tr_irq.c

104 lines
3.1 KiB
C
Raw Normal View History

/*
* PROJECT: ReactOS PCI Bus Driver
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: drivers/bus/pci/intrface/tr_irq.c
* PURPOSE: IRQ Translator Interface
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include <pci.h>
#define NDEBUG
#include <debug.h>
/* GLOBALS ********************************************************************/
PCI_INTERFACE TranslatorInterfaceInterrupt =
{
&GUID_TRANSLATOR_INTERFACE_STANDARD,
sizeof(TRANSLATOR_INTERFACE),
0,
0,
PCI_INTERFACE_FDO,
0,
PciTrans_Interrupt,
tranirq_Constructor,
tranirq_Initializer
};
/* FUNCTIONS ******************************************************************/
NTSTATUS
NTAPI
tranirq_Initializer(IN PVOID Instance)
{
UNREFERENCED_PARAMETER(Instance);
/* PnP Interfaces don't get Initialized */
ASSERTMSG("PCI tranirq_Initializer, unexpected call.", FALSE);
return STATUS_UNSUCCESSFUL;
}
NTSTATUS
NTAPI
tranirq_Constructor(IN PVOID DeviceExtension,
IN PVOID Instance,
IN PVOID InterfaceData,
IN USHORT Version,
IN USHORT Size,
IN PINTERFACE Interface)
{
PPCI_FDO_EXTENSION FdoExtension = (PPCI_FDO_EXTENSION)DeviceExtension;
ULONG BaseBus, ParentBus;
INTERFACE_TYPE ParentInterface;
ASSERT_FDO(FdoExtension);
UNREFERENCED_PARAMETER(Instance);
UNREFERENCED_PARAMETER(Version);
UNREFERENCED_PARAMETER(Size);
/* Make sure it's the right resource type */
if ((ULONG)InterfaceData != CmResourceTypeInterrupt)
{
/* Fail this invalid request */
DPRINT1("PCI - IRQ trans constructor doesn't like %p in InterfaceSpecificData\n",
InterfaceData);
return STATUS_INVALID_PARAMETER_3;
}
/* Get the bus, and use this as the interface-specific data */
BaseBus = FdoExtension->BaseBus;
InterfaceData = (PVOID)BaseBus;
/* Check if this is the root bus */
if (PCI_IS_ROOT_FDO(FdoExtension))
{
/* It is, so there is no parent, and it's connected on the system bus */
ParentBus = 0;
ParentInterface = Internal;
DPRINT1(" Is root FDO\n");
}
else
{
/* It's not, so we have to get the root bus' bus number instead */
#if 0 // when have PDO commit
ParentBus = FdoExtension->PhysicalDeviceObject->DeviceExtension->ParentFdoExtension->BaseBus;
ParentInterface = PCIBus;
DPRINT1(" Is bridge FDO, parent bus %x, secondary bus %x\n",
ParentBus, BaseBus);
#endif
}
/* Now call the legacy HAL interface to get the correct translator */
return HalGetInterruptTranslator(ParentInterface,
ParentBus,
PCIBus,
sizeof(TRANSLATOR_INTERFACE),
0,
(PTRANSLATOR_INTERFACE)Interface,
(PULONG)&InterfaceData);
}
/* EOF */