reactos/drivers/serial/serenum/pdo.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Serial enumerator driver
* FILE: drivers/bus/serenum/pdo.c
* PURPOSE: IRP_MJ_PNP operations for PDOs
*
* PROGRAMMERS: Herv<EFBFBD> Poussineau (hpoussin@reactos.org)
*/
#include "serenum.h"
#include <debug.h>
static NTSTATUS
SerenumPdoStartDevice(
IN PDEVICE_OBJECT DeviceObject)
{
PPDO_DEVICE_EXTENSION DeviceExtension;
DeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
ASSERT(DeviceExtension->Common.PnpState == dsStopped);
DeviceExtension->Common.PnpState = dsStarted;
return STATUS_SUCCESS;
}
static NTSTATUS
SerenumPdoQueryId(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
OUT ULONG_PTR* Information)
{
PPDO_DEVICE_EXTENSION DeviceExtension;
ULONG IdType;
PUNICODE_STRING SourceString;
UNICODE_STRING String;
NTSTATUS Status;
IdType = IoGetCurrentIrpStackLocation(Irp)->Parameters.QueryId.IdType;
DeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
RtlInitUnicodeString(&String, NULL);
switch (IdType)
{
case BusQueryDeviceID:
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryDeviceID\n");
SourceString = &DeviceExtension->DeviceId;
break;
}
case BusQueryHardwareIDs:
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryHardwareIDs\n");
SourceString = &DeviceExtension->HardwareIds;
break;
}
case BusQueryCompatibleIDs:
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryCompatibleIDs\n");
SourceString = &DeviceExtension->CompatibleIds;
break;
case BusQueryInstanceID:
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryInstanceID\n");
SourceString = &DeviceExtension->InstanceId;
break;
}
default:
WARN_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_ID / unknown query id type 0x%lx\n", IdType);
ASSERT(FALSE);
return STATUS_NOT_SUPPORTED;
}
Status = DuplicateUnicodeString(
RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE,
SourceString,
&String);
*Information = (ULONG_PTR)String.Buffer;
return Status;
}
static NTSTATUS
SerenumPdoQueryDeviceRelations(
IN PDEVICE_OBJECT DeviceObject,
OUT PDEVICE_RELATIONS* pDeviceRelations)
{
PFDO_DEVICE_EXTENSION DeviceExtension;
PDEVICE_RELATIONS DeviceRelations;
DeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
ASSERT(DeviceExtension->Common.IsFDO);
DeviceRelations = (PDEVICE_RELATIONS)ExAllocatePoolWithTag(
PagedPool,
sizeof(DEVICE_RELATIONS),
SERENUM_TAG);
if (!DeviceRelations)
return STATUS_INSUFFICIENT_RESOURCES;
ObReferenceObject(DeviceObject);
DeviceRelations->Count = 1;
DeviceRelations->Objects[0] = DeviceObject;
*pDeviceRelations = DeviceRelations;
return STATUS_SUCCESS;
}
NTSTATUS
SerenumPdoPnp(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
ULONG MinorFunction;
PIO_STACK_LOCATION Stack;
ULONG_PTR Information = 0;
NTSTATUS Status;
Stack = IoGetCurrentIrpStackLocation(Irp);
MinorFunction = Stack->MinorFunction;
switch (MinorFunction)
{
/* FIXME: do all these minor functions
IRP_MN_QUERY_REMOVE_DEVICE 0x1
IRP_MN_REMOVE_DEVICE 0x2
IRP_MN_CANCEL_REMOVE_DEVICE 0x3
IRP_MN_STOP_DEVICE 0x4
IRP_MN_QUERY_STOP_DEVICE 0x5
IRP_MN_CANCEL_STOP_DEVICE 0x6
IRP_MN_QUERY_DEVICE_RELATIONS / EjectionRelations (optional) 0x7
IRP_MN_QUERY_INTERFACE (required or optional) 0x8
IRP_MN_READ_CONFIG (required or optional) 0xf
IRP_MN_WRITE_CONFIG (required or optional) 0x10
IRP_MN_EJECT (required or optional) 0x11
IRP_MN_SET_LOCK (required or optional) 0x12
IRP_MN_QUERY_ID / BusQueryDeviceID 0x13
IRP_MN_QUERY_ID / BusQueryCompatibleIDs (optional) 0x13
IRP_MN_QUERY_ID / BusQueryInstanceID (optional) 0x13
IRP_MN_QUERY_PNP_DEVICE_STATE (optional) 0x14
IRP_MN_DEVICE_USAGE_NOTIFICATION (required or optional) 0x16
IRP_MN_SURPRISE_REMOVAL 0x17
*/
case IRP_MN_START_DEVICE: /* 0x0 */
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_START_DEVICE\n");
Status = SerenumPdoStartDevice(DeviceObject);
break;
}
case IRP_MN_QUERY_DEVICE_RELATIONS: /* 0x7 */
{
switch (Stack->Parameters.QueryDeviceRelations.Type)
{
case RemovalRelations:
{
return ForwardIrpToAttachedFdoAndForget(DeviceObject, Irp);
}
case TargetDeviceRelation:
{
PDEVICE_RELATIONS DeviceRelations = NULL;
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_RELATIONS / TargetDeviceRelation\n");
Status = SerenumPdoQueryDeviceRelations(DeviceObject, &DeviceRelations);
Information = (ULONG_PTR)DeviceRelations;
break;
}
default:
{
WARN_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_RELATIONS / Unknown type 0x%lx\n",
Stack->Parameters.QueryDeviceRelations.Type);
ASSERT(FALSE);
Status = STATUS_NOT_IMPLEMENTED;
break;
}
}
break;
}
case IRP_MN_QUERY_CAPABILITIES: /* 0x9 */
{
PDEVICE_CAPABILITIES DeviceCapabilities;
ULONG i;
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_CAPABILITIES\n");
DeviceCapabilities = (PDEVICE_CAPABILITIES)Stack->Parameters.DeviceCapabilities.Capabilities;
/* FIXME: capabilities can change with connected device */
DeviceCapabilities->LockSupported = FALSE;
DeviceCapabilities->EjectSupported = FALSE;
DeviceCapabilities->Removable = TRUE;
DeviceCapabilities->DockDevice = FALSE;
DeviceCapabilities->UniqueID = FALSE;
DeviceCapabilities->SilentInstall = FALSE;
DeviceCapabilities->RawDeviceOK = TRUE;
DeviceCapabilities->SurpriseRemovalOK = TRUE;
DeviceCapabilities->HardwareDisabled = FALSE; /* FIXME */
//DeviceCapabilities->NoDisplayInUI = FALSE; /* FIXME */
DeviceCapabilities->DeviceState[0] = PowerDeviceD0; /* FIXME */
for (i = 0; i < PowerSystemMaximum; i++)
DeviceCapabilities->DeviceState[i] = PowerDeviceD3; /* FIXME */
//DeviceCapabilities->DeviceWake = PowerDeviceUndefined; /* FIXME */
DeviceCapabilities->D1Latency = 0; /* FIXME */
DeviceCapabilities->D2Latency = 0; /* FIXME */
DeviceCapabilities->D3Latency = 0; /* FIXME */
Status = STATUS_SUCCESS;
break;
}
case IRP_MN_QUERY_RESOURCES: /* 0xa */
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_RESOURCES\n");
/* Serial devices don't need resources, except the ones of
* the serial port. This PDO is the serial device PDO, so
* report no resource by not changing Information and
* Status
*/
Information = Irp->IoStatus.Information;
Status = Irp->IoStatus.Status;
break;
}
case IRP_MN_QUERY_RESOURCE_REQUIREMENTS: /* 0xb */
{
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_RESOURCE_REQUIREMENTS\n");
/* Serial devices don't need resources, except the ones of
* the serial port. This PDO is the serial device PDO, so
* report no resource by not changing Information and
* Status
*/
Information = Irp->IoStatus.Information;
Status = Irp->IoStatus.Status;
break;
}
case IRP_MN_QUERY_DEVICE_TEXT: /* 0xc */
{
switch (Stack->Parameters.QueryDeviceText.DeviceTextType)
{
case DeviceTextDescription:
{
PUNICODE_STRING Source;
PWSTR Description;
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_TEXT / DeviceTextDescription\n");
Source = &((PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->DeviceDescription;
Description = ExAllocatePoolWithTag(PagedPool, Source->Length + sizeof(WCHAR), SERENUM_TAG);
if (!Description)
Status = STATUS_INSUFFICIENT_RESOURCES;
else
{
RtlCopyMemory(Description, Source->Buffer, Source->Length);
Description[Source->Length / sizeof(WCHAR)] = L'\0';
Information = (ULONG_PTR)Description;
Status = STATUS_SUCCESS;
}
break;
}
case DeviceTextLocationInformation:
{
/* We don't have any text location to report,
* and this query is optional, so ignore it.
*/
Information = Irp->IoStatus.Information;
Status = Irp->IoStatus.Status;
break;
}
default:
{
WARN_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_TEXT / unknown type 0x%lx\n",
Stack->Parameters.QueryDeviceText.DeviceTextType);
ASSERT(FALSE);
Status = STATUS_NOT_SUPPORTED;
}
}
break;
}
case IRP_MN_FILTER_RESOURCE_REQUIREMENTS: /* 0xd */
{
return ForwardIrpToAttachedFdoAndForget(DeviceObject, Irp);
}
case IRP_MN_QUERY_ID: /* 0x13 */
{
Status = SerenumPdoQueryId(DeviceObject, Irp, &Information);
break;
}
case IRP_MN_QUERY_BUS_INFORMATION: /* 0x15 */
{
PPNP_BUS_INFORMATION BusInfo;
TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_BUS_INFORMATION\n");
BusInfo = (PPNP_BUS_INFORMATION)ExAllocatePoolWithTag(PagedPool, sizeof(PNP_BUS_INFORMATION), SERENUM_TAG);
if (!BusInfo)
Status = STATUS_INSUFFICIENT_RESOURCES;
else
{
memcpy(
&BusInfo->BusTypeGuid,
&GUID_DEVINTERFACE_SERENUM_BUS_ENUMERATOR,
sizeof(BusInfo->BusTypeGuid));
BusInfo->LegacyBusType = PNPBus;
/* We're the only serial bus enumerator on the computer */
BusInfo->BusNumber = 0;
Information = (ULONG_PTR)BusInfo;
Status = STATUS_SUCCESS;
}
break;
}
default:
{
/* We can't forward request to the lower driver, because
* we are a Pdo, so we don't have lower driver... */
WARN_(SERENUM, "IRP_MJ_PNP / unknown minor function 0x%lx\n", MinorFunction);
ASSERT(FALSE);
Information = Irp->IoStatus.Information;
Status = Irp->IoStatus.Status;
}
}
Irp->IoStatus.Information = Information;
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}