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[VIDEOPRT]

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- Report legacy resources to the PnP manager via IRP_MN_FILTER_RESOURCE_REQUIREMENTS
- Report legacy access ranges in response to VideoPortGetAccessRanges
- TODO: Handle an optional resource requirements list in VideoPortGetAccessRanges

svn path=/trunk/; revision=54237
This commit is contained in:
Cameron Gutman 2011-10-23 02:45:09 +00:00
parent 68be9235cf
commit 25eae4b916
3 changed files with 187 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
reactos/drivers/video/videoprt/dispatch.c
View File

@ -305,7 +305,6 @@ IntVideoPortDispatchWrite(
return nErrCode;
}
NTSTATUS NTAPI
IntVideoPortPnPStartDevice(
IN PDEVICE_OBJECT DeviceObject,
@ -456,6 +455,14 @@ IntVideoPortDispatchPnp(
IoCompleteRequest(Irp, IO_NO_INCREMENT);
break;
case IRP_MN_FILTER_RESOURCE_REQUIREMENTS:
Status = IntVideoPortForwardIrpAndWait(DeviceObject, Irp);
if (NT_SUCCESS(Status) && NT_SUCCESS(Irp->IoStatus.Status))
Status = IntVideoPortFilterResourceRequirements(DeviceObject, Irp);
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
break;
case IRP_MN_REMOVE_DEVICE:
case IRP_MN_QUERY_REMOVE_DEVICE:

175
reactos/drivers/video/videoprt/resource.c
View File

@ -23,6 +23,166 @@
/* PRIVATE FUNCTIONS **********************************************************/
NTSTATUS NTAPI
IntVideoPortGetLegacyResources(
IN PVIDEO_PORT_DRIVER_EXTENSION DriverExtension,
IN PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension,
OUT PVIDEO_ACCESS_RANGE *AccessRanges,
OUT PULONG AccessRangeCount)
{
PCI_COMMON_CONFIG PciConfig;
ULONG ReadLength;
if (!DriverExtension->InitializationData.HwGetLegacyResources &&
!DriverExtension->InitializationData.HwLegacyResourceCount)
{
/* No legacy resources to report */
*AccessRangeCount = 0;
return STATUS_SUCCESS;
}
if (DriverExtension->InitializationData.HwGetLegacyResources)
{
ReadLength = HalGetBusData(PCIConfiguration,
DeviceExtension->SystemIoBusNumber,
DeviceExtension->SystemIoSlotNumber,
&PciConfig,
sizeof(PciConfig));
if (ReadLength != sizeof(PciConfig))
{
/* This device doesn't exist */
return STATUS_NO_SUCH_DEVICE;
}
DriverExtension->InitializationData.HwGetLegacyResources(PciConfig.VendorID,
PciConfig.DeviceID,
AccessRanges,
AccessRangeCount);
}
else
{
*AccessRanges = DriverExtension->InitializationData.HwLegacyResourceList;
*AccessRangeCount = DriverExtension->InitializationData.HwLegacyResourceCount;
}
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
IntVideoPortFilterResourceRequirements(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
PDRIVER_OBJECT DriverObject;
PVIDEO_PORT_DRIVER_EXTENSION DriverExtension;
PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
PVIDEO_ACCESS_RANGE AccessRanges;
ULONG AccessRangeCount, ListSize, i;
PIO_RESOURCE_REQUIREMENTS_LIST ResList, OldResList = (PVOID)Irp->IoStatus.Information;
PIO_RESOURCE_DESCRIPTOR CurrentDescriptor;
NTSTATUS Status;
DriverObject = DeviceObject->DriverObject;
DriverExtension = IoGetDriverObjectExtension(DriverObject, DriverObject);
DeviceExtension = (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
Status = IntVideoPortGetLegacyResources(DriverExtension, DeviceExtension, &AccessRanges, &AccessRangeCount);
if (!NT_SUCCESS(Status))
return Status;
if (!AccessRangeCount)
{
/* No legacy resources to report */
return Irp->IoStatus.Information;
}
/* OK, we've got the access ranges now. Let's set up the resource requirements list */
if (OldResList)
{
/* Already one there so let's add to it */
ListSize = OldResList->ListSize + sizeof(IO_RESOURCE_DESCRIPTOR) * AccessRangeCount;
ResList = ExAllocatePool(NonPagedPool,
ListSize);
if (!ResList) return STATUS_NO_MEMORY;
RtlCopyMemory(ResList, OldResList, OldResList->ListSize);
ASSERT(ResList->AlternativeLists == 1);
ResList->ListSize = ListSize;
ResList->List[0].Count += AccessRangeCount;
CurrentDescriptor = (PIO_RESOURCE_DESCRIPTOR)((PUCHAR)ResList + OldResList->ListSize);
ExFreePool(OldResList);
Irp->IoStatus.Information = 0;
}
else
{
/* We need to make a new one */
ListSize = sizeof(IO_RESOURCE_REQUIREMENTS_LIST) + sizeof(IO_RESOURCE_DESCRIPTOR) * (AccessRangeCount - 1);
ResList = ExAllocatePool(NonPagedPool,
ListSize);
if (!ResList) return STATUS_NO_MEMORY;
RtlZeroMemory(ResList, ListSize);
/* We need to initialize some fields */
ResList->ListSize = ListSize;
ResList->InterfaceType = DeviceExtension->AdapterInterfaceType;
ResList->BusNumber = DeviceExtension->SystemIoBusNumber;
ResList->SlotNumber = DeviceExtension->SystemIoSlotNumber;
ResList->AlternativeLists = 1;
ResList->List[0].Version = 1;
ResList->List[0].Revision = 1;
ResList->List[0].Count = AccessRangeCount;
CurrentDescriptor = ResList->List[0].Descriptors;
}
for (i = 0; i < AccessRangeCount; i++)
{
/* This is a required resource */
CurrentDescriptor->Option = 0;
if (AccessRanges[i].RangeInIoSpace)
CurrentDescriptor->Type = CmResourceTypePort;
else
CurrentDescriptor->Type = CmResourceTypeMemory;
CurrentDescriptor->ShareDisposition =
(AccessRanges[i].RangeShareable ? CmResourceShareShared : CmResourceShareDeviceExclusive);
CurrentDescriptor->Flags = 0;
if (CurrentDescriptor->Type == CmResourceTypePort)
{
CurrentDescriptor->u.Port.Length = AccessRanges[i].RangeLength;
CurrentDescriptor->u.Port.MinimumAddress =
CurrentDescriptor->u.Port.MaximumAddress = AccessRanges[i].RangeStart;
CurrentDescriptor->u.Port.Alignment = 1;
if (AccessRanges[i].RangePassive & VIDEO_RANGE_PASSIVE_DECODE)
CurrentDescriptor->Flags |= CM_RESOURCE_PORT_PASSIVE_DECODE;
if (AccessRanges[i].RangePassive & VIDEO_RANGE_10_BIT_DECODE)
CurrentDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
}
else
{
CurrentDescriptor->u.Memory.Length = AccessRanges[i].RangeLength;
CurrentDescriptor->u.Memory.MinimumAddress =
CurrentDescriptor->u.Memory.MaximumAddress = AccessRanges[i].RangeStart;
CurrentDescriptor->u.Memory.Alignment = 1;
CurrentDescriptor->Flags |= CM_RESOURCE_MEMORY_READ_WRITE;
}
CurrentDescriptor++;
}
Irp->IoStatus.Information = (ULONG_PTR)ResList;
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
IntVideoPortMapPhysicalMemory(
IN HANDLE Process,
@ -409,14 +569,20 @@ VideoPortGetAccessRanges(
CM_FULL_RESOURCE_DESCRIPTOR *FullList;
CM_PARTIAL_RESOURCE_DESCRIPTOR *Descriptor;
PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
PVIDEO_PORT_DRIVER_EXTENSION DriverExtension;
USHORT VendorIdToFind;
USHORT DeviceIdToFind;
ULONG ReturnedLength;
PVIDEO_ACCESS_RANGE LegacyAccessRanges;
ULONG LegacyAccessRangeCount;
PDRIVER_OBJECT DriverObject;
BOOLEAN DeviceAndVendorFound = FALSE;
TRACE_(VIDEOPRT, "VideoPortGetAccessRanges\n");
DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
DriverObject = DeviceExtension->DriverObject;
DriverExtension = IoGetDriverObjectExtension(DriverObject, DriverObject);
if (NumRequestedResources == 0)
{
@ -521,7 +687,14 @@ VideoPortGetAccessRanges(
}
if (AllocatedResources == NULL)
return ERROR_NOT_ENOUGH_MEMORY;
AssignedCount = 0;
Status = IntVideoPortGetLegacyResources(DriverExtension, DeviceExtension,
&LegacyAccessRanges, &LegacyAccessRangeCount);
if (!NT_SUCCESS(Status))
return ERROR_DEV_NOT_EXIST;
if (NumAccessRanges < LegacyAccessRangeCount)
return ERROR_NOT_ENOUGH_MEMORY;
RtlCopyMemory(AccessRanges, LegacyAccessRanges, LegacyAccessRangeCount * sizeof(VIDEO_ACCESS_RANGE));
AssignedCount = LegacyAccessRangeCount;
for (FullList = AllocatedResources->List;
FullList < AllocatedResources->List + AllocatedResources->Count;
FullList++)

5
reactos/drivers/video/videoprt/videoprt.h
View File

@ -197,6 +197,11 @@ IntVideoPortSetupInterrupt(
/* resource.c */
NTSTATUS NTAPI
IntVideoPortFilterResourceRequirements(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp);
NTSTATUS NTAPI
IntVideoPortMapPhysicalMemory(
IN HANDLE Process,