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400 lines
7.1 KiB
400 lines
7.1 KiB
/*++
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Copyright (c) Microsoft Corporation. All rights reserved.
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Module Name:
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pciirqmp.c
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Abstract:
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This is the PCI IRQ Miniport library.
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Author:
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Santosh Jodh (santoshj) 09-June-1998
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Environment:
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kernel mode only
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Revision History:
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--*/
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#include "local.h"
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#define NUMBER_OF_CHIPSETS (sizeof(rgChipData) / sizeof(CHIPSET_DATA))
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#ifdef ALLOC_DATA_PRAGMA
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#pragma data_seg()
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#pragma const_seg()
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#endif
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//
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// Table of chipset drivers.
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//
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const CHIPSET_DATA rgChipData[] = {
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DECLARE_EISA_CHIPSET(Mercury), // Intel 82374EB\SB (80860482)
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DECLARE_EISA_CHIPSET(Triton), // Intel 82430FX (8086122E)
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DECLARE_CHIPSET(VLSI), // VLSI VL82C596/7
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DECLARE_CHIPSET(OptiViper), // OPTi Viper-M
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DECLARE_EISA_CHIPSET(SiS5503), // SIS P54C
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DECLARE_CHIPSET(VLSIEagle), // VLSI VL82C534
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DECLARE_EISA_CHIPSET(M1523), // ALi M1523
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DECLARE_CHIPSET(NS87560), // Nat Semi NS87560
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DECLARE_EISA_CHIPSET(Compaq3), // Compaq MISC 3
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DECLARE_EISA_CHIPSET(M1533), // ALi M1533
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DECLARE_CHIPSET(OptiFireStar), // OPTI FIRESTAR
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DECLARE_EISA_CHIPSET(VT586), // VIATECH 82C586B
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DECLARE_EISA_CHIPSET(CPQOSB), // Conpaq OSB
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DECLARE_EISA_CHIPSET(CPQ1000), // Conpaq 1000
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DECLARE_EISA_CHIPSET(Cx5520), // Cyrix 5520
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DECLARE_CHIPSET(Toshiba), // Toshiba
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DECLARE_CHIPSET(NEC), // NEC PC9800
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DECLARE_CHIPSET(VESUVIUS) //
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};
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//
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// Global variables shared by all modules.
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//
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ULONG bBusPIC = -1;
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ULONG bDevFuncPIC = -1;
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CHIPSET_DATA const* rgChipSet = NULL;
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT, PciirqmpInit)
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#pragma alloc_text(INIT, PciirqmpExit)
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#pragma alloc_text(INIT, PciirqmpValidateTable)
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#endif //ALLOC_PRAGMA
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NTSTATUS
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PciirqmpInit (
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ULONG Instance,
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ULONG RouterBus,
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ULONG RouterDevFunc
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)
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/*++
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Routine Description:
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This routine initializes calls the individual chipset handler
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to validate the Pci Irq Routing Table.
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Parameters:
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PciIrqRoutingTable - Pci Irq Routing Table.
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Flags - Flags specifying source of the Pci Irq Routing Table.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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PAGED_CODE();
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//
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// Check to make sure that we are not already initialized.
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//
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if (rgChipSet != NULL)
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{
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PCIIRQMPPRINT(("IRQ miniport already initialized!"));
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return (PCIIRQMP_STATUS_ALREADY_INITIALIZED);
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}
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//
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// Check for invalid instance.
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//
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if (Instance >= NUMBER_OF_CHIPSETS)
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{
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PCIIRQMPPRINT(("Invalid IRQ miniport instance %08X", Instance));
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return (PCIIRQMP_STATUS_INVALID_INSTANCE);
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}
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//
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// Save our global data.
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//
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rgChipSet = &rgChipData[Instance];
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bBusPIC = RouterBus;
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bDevFuncPIC = RouterDevFunc;
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return (PCIMP_SUCCESS);
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}
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NTSTATUS
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PciirqmpExit (
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VOID
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)
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/*++
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Routine Description:
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This routine cleans up after the Pci Irq Routing miniport library.
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Parameters:
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None.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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PAGED_CODE();
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Cannot exit without having been initialized!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Clean up.
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//
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rgChipSet = NULL;
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bBusPIC = -1;
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bDevFuncPIC = -1;
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return (PCIMP_SUCCESS);
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}
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NTSTATUS
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PciirqmpValidateTable (
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IN PPCI_IRQ_ROUTING_TABLE PciIrqRoutingTable,
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IN ULONG Flags
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)
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/*++
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Routine Description:
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This routine normalizes calls the individual chipset handler
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to validate the Pci Irq Routing Table.
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Parameters:
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PciIrqRoutingTable - Pci Irq Routing Table.
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Flags - Flags specifying source of the Pci Irq Routing Table.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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PAGED_CODE();
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Not initialized yet!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Call the chipset handler.
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//
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return (rgChipSet->ValidateTable(PciIrqRoutingTable, Flags));
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}
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NTSTATUS
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PciirqmpGetIrq (
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OUT PUCHAR Irq,
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IN UCHAR Link
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)
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/*++
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Routine Description:
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This routine calls the individual chipset handler
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to set the link to the specified Irq.
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Parameters:
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Irq - Variable that receives the Irq.
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Link - Link to be read.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Not initialized yet!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Call the chipset handler.
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//
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return (rgChipSet->GetIrq(Irq, Link));
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}
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NTSTATUS
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PciirqmpSetIrq (
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IN UCHAR Irq,
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IN UCHAR Link
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)
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/*++
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Routine Description:
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This routine calls the individual chipset handler
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to set the link to the specified Irq.
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Parameters:
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Irq - Irq to be set.
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Link - Link to be programmed.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Not initialized yet!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Call the chipset handler.
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//
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return (rgChipSet->SetIrq(Irq, Link));
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}
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NTSTATUS
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PciirqmpGetTrigger (
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OUT PULONG Trigger
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)
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/*++
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Routine Description:
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This routine calls the individual chipset handler
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to get the interrupt edge\level mask.
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Parameters:
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Trigger - Variable that receives edge\level mask.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Not initialized yet!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Call the chipset handler.
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//
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return (rgChipSet->GetTrigger(Trigger));
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}
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NTSTATUS
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PciirqmpSetTrigger (
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IN ULONG Trigger
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)
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/*++
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Routine Description:
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This routine calls the individual chipset handler
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to set the interrupt edge\level mask.
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Parameters:
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Trigger - Edge\level mask to be set.
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Return Value:
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Standard Pci Irq Miniport return value.
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Notes:
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--*/
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{
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//
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// Were we ever initialized?
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//
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if (rgChipSet == NULL)
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{
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PCIIRQMPPRINT(("Not initialized yet!"));
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return (PCIIRQMP_STATUS_NOT_INITIALIZED);
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}
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//
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// Call the chipset handler and return the result.
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//
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return (rgChipSet->SetTrigger(Trigger));
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}
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