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[VIDEOPRT] Reformat VideoPortVerifyAccessRanges()
Fix indentation, add SAL annotations and Doxygen description.
This commit is contained in:
Hermès Bélusca-Maïto
parent
7eca194709
commit
de6313d89e
2 changed files with 89 additions and 73 deletions
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@ -1251,9 +1251,9 @@ VPAPI
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VP_STATUS
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NTAPI
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VideoPortVerifyAccessRanges(
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IN PVOID HwDeviceExtension,
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IN ULONG NumAccessRanges,
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IN PVIDEO_ACCESS_RANGE AccessRanges);
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_In_ PVOID HwDeviceExtension,
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_In_opt_ ULONG NumAccessRanges,
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_In_reads_opt_(NumAccessRanges) PVIDEO_ACCESS_RANGE AccessRanges);
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VPAPI
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VOID
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@ -816,84 +816,100 @@ VideoPortGetAccessRanges(
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return NO_ERROR;
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}
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/*
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* @implemented
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*/
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VP_STATUS NTAPI
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/**
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* @brief
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* Claims or releases a range of hardware resources and checks for conflicts.
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*
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* @param[in] HwDeviceExtension
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* The miniport device extension.
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*
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* @param[in] NumAccessRanges
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* The number of hardware resource ranges in the @p AccessRanges array.
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* Specify zero to release the hardware resources held by the miniport.
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*
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* @param[in] AccessRanges
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* The array of hardware resource ranges to claim ownership.
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* Specify NULL to release the hardware resources held by the miniport.
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*
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* @return
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* NO_ERROR if the resources have been successfully claimed or released.
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* ERROR_INVALID_PARAMETER if an error or a conflict occurred.
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**/
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VP_STATUS
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NTAPI
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VideoPortVerifyAccessRanges(
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IN PVOID HwDeviceExtension,
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IN ULONG NumAccessRanges,
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IN PVIDEO_ACCESS_RANGE AccessRanges)
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_In_ PVOID HwDeviceExtension,
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_In_opt_ ULONG NumAccessRanges,
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_In_reads_opt_(NumAccessRanges) PVIDEO_ACCESS_RANGE AccessRanges)
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{
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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BOOLEAN ConflictDetected;
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ULONG i;
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PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
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PCM_RESOURCE_LIST ResourceList;
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ULONG ResourceListSize;
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NTSTATUS Status;
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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BOOLEAN ConflictDetected;
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ULONG i;
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PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
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PCM_RESOURCE_LIST ResourceList;
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ULONG ResourceListSize;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "VideoPortVerifyAccessRanges\n");
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TRACE_(VIDEOPRT, "VideoPortVerifyAccessRanges\n");
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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/* Create the resource list */
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ResourceListSize = sizeof(CM_RESOURCE_LIST)
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+ (NumAccessRanges - 1) * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
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ResourceList = ExAllocatePool(PagedPool, ResourceListSize);
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if (!ResourceList)
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{
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WARN_(VIDEOPRT, "ExAllocatePool() failed\n");
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return ERROR_NOT_ENOUGH_MEMORY;
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}
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/* Create the resource list */
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ResourceListSize = sizeof(CM_RESOURCE_LIST)
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+ (NumAccessRanges - 1) * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
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ResourceList = ExAllocatePool(PagedPool, ResourceListSize);
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if (!ResourceList)
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{
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WARN_(VIDEOPRT, "ExAllocatePool() failed\n");
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return ERROR_NOT_ENOUGH_MEMORY;
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}
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/* Fill resource list */
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ResourceList->Count = 1;
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ResourceList->List[0].InterfaceType = DeviceExtension->AdapterInterfaceType;
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ResourceList->List[0].BusNumber = DeviceExtension->SystemIoBusNumber;
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ResourceList->List[0].PartialResourceList.Version = 1;
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ResourceList->List[0].PartialResourceList.Revision = 1;
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ResourceList->List[0].PartialResourceList.Count = NumAccessRanges;
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for (i = 0; i < NumAccessRanges; i++, AccessRanges++)
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{
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PartialDescriptor = &ResourceList->List[0].PartialResourceList.PartialDescriptors[i];
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if (AccessRanges->RangeInIoSpace)
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{
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PartialDescriptor->Type = CmResourceTypePort;
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PartialDescriptor->u.Port.Start = AccessRanges->RangeStart;
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PartialDescriptor->u.Port.Length = AccessRanges->RangeLength;
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}
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else
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{
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PartialDescriptor->Type = CmResourceTypeMemory;
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PartialDescriptor->u.Memory.Start = AccessRanges->RangeStart;
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PartialDescriptor->u.Memory.Length = AccessRanges->RangeLength;
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}
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if (AccessRanges->RangeShareable)
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PartialDescriptor->ShareDisposition = CmResourceShareShared;
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else
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PartialDescriptor->ShareDisposition = CmResourceShareDeviceExclusive;
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PartialDescriptor->Flags = 0;
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if (AccessRanges->RangePassive & VIDEO_RANGE_PASSIVE_DECODE)
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PartialDescriptor->Flags |= CM_RESOURCE_PORT_PASSIVE_DECODE;
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if (AccessRanges->RangePassive & VIDEO_RANGE_10_BIT_DECODE)
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PartialDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
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}
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/* Fill resource list */
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ResourceList->Count = 1;
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ResourceList->List[0].InterfaceType = DeviceExtension->AdapterInterfaceType;
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ResourceList->List[0].BusNumber = DeviceExtension->SystemIoBusNumber;
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ResourceList->List[0].PartialResourceList.Version = 1;
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ResourceList->List[0].PartialResourceList.Revision = 1;
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ResourceList->List[0].PartialResourceList.Count = NumAccessRanges;
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for (i = 0; i < NumAccessRanges; i++, AccessRanges++)
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{
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PartialDescriptor = &ResourceList->List[0].PartialResourceList.PartialDescriptors[i];
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if (AccessRanges->RangeInIoSpace)
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{
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PartialDescriptor->Type = CmResourceTypePort;
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PartialDescriptor->u.Port.Start = AccessRanges->RangeStart;
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PartialDescriptor->u.Port.Length = AccessRanges->RangeLength;
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}
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else
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{
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PartialDescriptor->Type = CmResourceTypeMemory;
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PartialDescriptor->u.Memory.Start = AccessRanges->RangeStart;
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PartialDescriptor->u.Memory.Length = AccessRanges->RangeLength;
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}
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if (AccessRanges->RangeShareable)
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PartialDescriptor->ShareDisposition = CmResourceShareShared;
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else
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PartialDescriptor->ShareDisposition = CmResourceShareDeviceExclusive;
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PartialDescriptor->Flags = 0;
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if (AccessRanges->RangePassive & VIDEO_RANGE_PASSIVE_DECODE)
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PartialDescriptor->Flags |= CM_RESOURCE_PORT_PASSIVE_DECODE;
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if (AccessRanges->RangePassive & VIDEO_RANGE_10_BIT_DECODE)
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PartialDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
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}
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/* Try to acquire all resource ranges */
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Status = IoReportResourceForDetection(
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DeviceExtension->DriverObject,
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NULL, 0, /* Driver List */
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DeviceExtension->PhysicalDeviceObject,
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ResourceList, ResourceListSize,
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&ConflictDetected);
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ExFreePool(ResourceList);
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/* Try to acquire all resource ranges */
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Status = IoReportResourceForDetection(
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DeviceExtension->DriverObject,
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NULL, 0, /* Driver List */
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DeviceExtension->PhysicalDeviceObject,
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ResourceList, ResourceListSize,
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&ConflictDetected);
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ExFreePool(ResourceList);
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if (!NT_SUCCESS(Status) || ConflictDetected)
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return ERROR_INVALID_PARAMETER;
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else
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return NO_ERROR;
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if (!NT_SUCCESS(Status) || ConflictDetected)
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return ERROR_INVALID_PARAMETER;
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else
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return NO_ERROR;
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}
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/*
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