You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
2.1 KiB
116 lines
2.1 KiB
|
|
/*++
|
|
|
|
Copyright (c) 1991-2000 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
pbdata.c
|
|
|
|
Abstract:
|
|
|
|
Declares various data which is specific to PNP ISA bus extender architecture and
|
|
is independent of BIOS.
|
|
|
|
Author:
|
|
|
|
Shie-Lin Tzong (shielint) July-26-95
|
|
|
|
Environment:
|
|
|
|
Kernel mode only.
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
|
|
#include "busp.h"
|
|
|
|
// global variable for configuring level of debug spew.
|
|
|
|
ULONG PipDebugMask = DEBUG_WARN | DEBUG_ERROR;
|
|
|
|
//
|
|
// global varialbe to remember the driver object created
|
|
// by IO mgr.
|
|
//
|
|
|
|
PDRIVER_OBJECT PipDriverObject;
|
|
|
|
//
|
|
// regPNPISADeviceName
|
|
//
|
|
|
|
WCHAR rgzPNPISADeviceName[] = DEVSTR_PNPISA_DEVICE_NAME;
|
|
|
|
//
|
|
// Pointers to bus extension data.
|
|
//
|
|
|
|
PBUS_EXTENSION_LIST PipBusExtension;
|
|
|
|
//
|
|
// PipRegistryPath stores the registry path that we got upon driver entry.
|
|
// This is used later when we're attempting to allocate resources.
|
|
//
|
|
|
|
UNICODE_STRING PipRegistryPath;
|
|
|
|
//
|
|
// Variables to protect critical region.
|
|
//
|
|
|
|
KEVENT PipDeviceTreeLock;
|
|
KEVENT IsaBusNumberLock;
|
|
|
|
//
|
|
// Bus Number and DMA control counters
|
|
//
|
|
ULONG BusNumberBuffer [256/sizeof (ULONG)];
|
|
RTL_BITMAP BusNumBMHeader;
|
|
PRTL_BITMAP BusNumBM;
|
|
ULONG ActiveIsaCount;
|
|
USHORT PipFirstInit;
|
|
|
|
#if ISOLATE_CARDS
|
|
|
|
// current bus "state"
|
|
|
|
PNPISA_STATE PipState = PiSWaitForKey;
|
|
|
|
//
|
|
// Read_data_port address
|
|
// (This is mainly for convinience. It duplicates the
|
|
// ReadDataPort field in BUS extension structure.)
|
|
//
|
|
|
|
ULONG ADDRESS_PORT=0x0279;
|
|
ULONG COMMAND_PORT=0x0a79;
|
|
|
|
PUCHAR PipReadDataPort;
|
|
PUCHAR PipCommandPort;
|
|
PUCHAR PipAddressPort;
|
|
|
|
//
|
|
// The global pointer to the Read Data Port DevNode
|
|
//
|
|
PDEVICE_INFORMATION PipRDPNode;
|
|
|
|
|
|
//
|
|
// ActiveIsaCount data port range selection array
|
|
//
|
|
//this conflicts with Compaq 2ndary IDE {0x374, 0x377, 4},
|
|
READ_DATA_PORT_RANGE
|
|
PipReadDataPortRanges[READ_DATA_PORT_RANGE_CHOICES] =
|
|
{{0x274, 0x277, 4},
|
|
{0x3E4, 0x3E7, 4},
|
|
{0x204, 0x207, 4},
|
|
{0x2E4, 0x2E7, 4},
|
|
{0x354, 0x357, 4},
|
|
{0x2F4, 0x2F7, 4}};
|
|
|
|
BOOLEAN PipIsolationDisabled;
|
|
|
|
#endif
|