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/*++
Copyright (c) 1999-2000 Microsoft Corporation
Module Name: dispatch.c Abstract:
This module contains the PNP, IOCTL, and Power dispatch routines for softpci.sys Author:
Nicholas Owens (nichow) 11-Mar-1999
Revision History:
--*/#include "pch.h"
#ifdef ALLOC_PRAGMA
#pragma alloc_text (PAGE, SoftPCIDispatchPnP)
#pragma alloc_text (PAGE, SoftPCIDispatchPower)
#pragma alloc_text (PAGE, SoftPCIDispatchDeviceControl)
#endif
#define MAX_PNP_IRP_SUPPORTED 0x18
PDRIVER_DISPATCH SoftPciFilterPnPDispatchTable[] = {
SoftPCIFilterStartDevice, // IRP_MN_START_DEVICE 0x00
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_REMOVE_DEVICE 0x01
SoftPCIIrpRemoveDevice, // IRP_MN_REMOVE_DEVICE 0x02
SoftPCIPassIrpDownSuccess, // IRP_MN_CANCEL_REMOVE_DEVICE 0x03
SoftPCIPassIrpDownSuccess, // IRP_MN_STOP_DEVICE 0x04
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_STOP_DEVICE 0x05
SoftPCIPassIrpDownSuccess, // IRP_MN_CANCEL_STOP_DEVICE 0x06
SoftPCIPassIrpDown, // IRP_MN_QUERY_DEVICE_RELATIONS 0x07
SoftPCIFilterQueryInterface, // IRP_MN_QUERY_INTERFACE 0x08
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_CAPABILITIES 0x09
SoftPCIPassIrpDown, // IRP_MN_QUERY_RESOURCES 0x0A
SoftPCIPassIrpDown, // IRP_MN_QUERY_RESOURCE_REQUIREMENTS 0x0B
SoftPCIPassIrpDown, // IRP_MN_QUERY_DEVICE_TEXT 0x0C
SoftPCIPassIrpDown, // IRP_MN_FILTER_RESOURCE_REQUIREMENTS 0x0D
SoftPCIPassIrpDown, // IRP_MN_IRP_UNKNOWN 0x0E
SoftPCIPassIrpDown, // IRP_MN_READ_CONFIG 0x0F
SoftPCIPassIrpDown, // IRP_MN_WRITE_CONFIG 0x10
SoftPCIPassIrpDown, // IRP_MN_EJECT 0x11
SoftPCIPassIrpDown, // IRP_MN_SET_LOCK 0x12
SoftPCIPassIrpDown, // IRP_MN_QUERY_ID 0x13
SoftPCIPassIrpDown, // IRP_MN_QUERY_PNP_DEVICE_STATE 0x14
SoftPCIPassIrpDown, // IRP_MN_QUERY_BUS_INFORMATION 0x15
SoftPCIPassIrpDown, // IRP_MN_DEVICE_USAGE_NOTIFICATION 0x16
SoftPCIPassIrpDownSuccess, // IRP_MN_SURPRISE_REMOVAL 0x17
SoftPCIPassIrpDown, // IRP_MN_QUERY_LEGACY_BUS_REQUIREMENTS0x18
};
PDRIVER_DISPATCH SoftPciFdoPnPDispatchTable[] = {
#ifdef SIMULATE_MSI
SoftPCI_FdoStartDevice, // IRP_MN_START_DEVICE 0x00
#else
SoftPCIPassIrpDownSuccess, // IRP_MN_START_DEVICE 0x00
#endif
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_REMOVE_DEVICE 0x01
SoftPCIIrpRemoveDevice, // IRP_MN_REMOVE_DEVICE 0x02
SoftPCIPassIrpDownSuccess, // IRP_MN_CANCEL_REMOVE_DEVICE 0x03
SoftPCIPassIrpDownSuccess, // IRP_MN_STOP_DEVICE 0x04
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_STOP_DEVICE 0x05
SoftPCIPassIrpDownSuccess, // IRP_MN_CANCEL_STOP_DEVICE 0x06
SoftPCIPassIrpDown, // IRP_MN_QUERY_DEVICE_RELATIONS 0x07
SoftPCIPassIrpDown, // IRP_MN_QUERY_INTERFACE 0x08
SoftPCIPassIrpDownSuccess, // IRP_MN_QUERY_CAPABILITIES 0x09
SoftPCIPassIrpDown, // IRP_MN_QUERY_RESOURCES 0x0A
SoftPCIPassIrpDown, // IRP_MN_QUERY_RESOURCE_REQUIREMENTS 0x0B
SoftPCIPassIrpDown, // IRP_MN_QUERY_DEVICE_TEXT 0x0C
SoftPCI_FdoFilterRequirements, // IRP_MN_FILTER_RESOURCE_REQUIREMENTS 0x0D
SoftPCIPassIrpDown, // IRP_MN_IRP_UNKNOWN 0x0E
SoftPCIPassIrpDown, // IRP_MN_READ_CONFIG 0x0F
SoftPCIPassIrpDown, // IRP_MN_WRITE_CONFIG 0x10
SoftPCIPassIrpDown, // IRP_MN_EJECT 0x11
SoftPCIPassIrpDown, // IRP_MN_SET_LOCK 0x12
SoftPCIPassIrpDown, // IRP_MN_QUERY_ID 0x13
SoftPCIPassIrpDown, // IRP_MN_QUERY_PNP_DEVICE_STATE 0x14
SoftPCIPassIrpDown, // IRP_MN_QUERY_BUS_INFORMATION 0x15
SoftPCIPassIrpDown, // IRP_MN_DEVICE_USAGE_NOTIFICATION 0x16
SoftPCIPassIrpDownSuccess, // IRP_MN_SURPRISE_REMOVAL 0x17
SoftPCIPassIrpDown, // IRP_MN_QUERY_LEGACY_BUS_REQUIREMENTS0x18
};
PDRIVER_DISPATCH SoftPciIOCTLDispatchTable[] = {
SoftPCIIoctlAddDevice, // SOFTPCI_IOCTL_CREATE_DEVICE
SoftPCIIoctlRemoveDevice, // SOFTPCI_IOCTL_WRITE_DELETE_DEVICE
SoftPCIIoctlGetDevice, // SOFTPCI_IOCTL_GET_DEVICE
SoftPCIIocltReadWriteConfig, // SOFTPCI_IOCTL_RW_CONFIG
SoftPCIIoctlGetDeviceCount // SOFTPCI_IOCTL_GET_DEVICE_COUNT
};
NTSTATUSSoftPCIDispatchPnP( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )/*++
Routine Description:
Dispatches PnP Irps for FDO and FilterDOs
Arguments:
DeviceObject - pointer to the device object. Irp - PnP Irp to be dispatched. Return Value:
NTSTATUS.
--*/
{ NTSTATUS status = STATUS_SUCCESS; PIO_STACK_LOCATION irpSp; PSOFTPCI_DEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
irpSp = IoGetCurrentIrpStackLocation(Irp);
//
// Call the appropriate minor Irp Code handler.
//
if (irpSp->MinorFunction <= MAX_PNP_IRP_SUPPORTED) { if (deviceExtension->FilterDevObj) { status = SoftPciFilterPnPDispatchTable[irpSp->MinorFunction](DeviceObject, Irp ); } else {
status = SoftPciFdoPnPDispatchTable[irpSp->MinorFunction](DeviceObject, Irp ); } } else {
status = SoftPCIPassIrpDown(DeviceObject, Irp); }
return status;
}
NTSTATUSSoftPCIDispatchPower( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )/*++
Routine Description:
Dispatches Power IRPs
Arguments:
DeviceObject - pointer to the device object. Irp - PnP Irp to be dispatched. Return Value:
NTSTATUS.
--*/{ PSOFTPCI_DEVICE_EXTENSION devExt = (PSOFTPCI_DEVICE_EXTENSION) DeviceObject->DeviceExtension;
if (devExt->FilterDevObj) { //
// If this is our FilterDO just pass the IRP on down
//
return SoftPCIDefaultPowerHandler(DeviceObject, Irp);
}else{
//
// Otherwise lets pretend to power manage our device
//
return SoftPCIFDOPowerHandler(DeviceObject, Irp);
} }
NTSTATUSSoftPCIDispatchDeviceControl( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )/*++
Routine Description:
Dispatches IOCTLS for FilterDOs.
Arguments:
DeviceObject - pointer to the device object. Irp - PnP Irp to be dispatched. Return Value:
NTSTATUS.
--*/{ NTSTATUS status = STATUS_SUCCESS; ULONG ioControlCode = IoGetCurrentIrpStackLocation(Irp)-> Parameters.DeviceIoControl.IoControlCode; //
// Make sure it is our IOCTL Type
//
if ((DEVICE_TYPE_FROM_CTL_CODE(ioControlCode)) == SOFTPCI_IOCTL_TYPE) {
//
// Make sure it is an IOCTL function we support
//
if (SOFTPCI_IOCTL(ioControlCode) <= MAX_IOCTL_CODE_SUPPORTED) {
//
// Dispatch Device Control IOCTL
//
status = SoftPciIOCTLDispatchTable[SOFTPCI_IOCTL(ioControlCode)](DeviceObject, Irp ); //
// Set Status of Irp and complete it
//
Irp->IoStatus.Status = status; //
// Complete the Irp.
//
IoCompleteRequest(Irp, IO_NO_INCREMENT);
}else{
//
// We dont support this IOCTL function so fail and complete.
//
status = STATUS_NOT_SUPPORTED;
Irp->IoStatus.Status = status; IoCompleteRequest(Irp, IO_NO_INCREMENT); return status;
}
} else {
status = SoftPCIPassIrpDown(DeviceObject, Irp);
}
return status;
}
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