BOOLEAN
IopIsDuplicatedResourceLists(
IN PCM_RESOURCE_LIST Configuration1,
IN PCM_RESOURCE_LIST Configuration2
)
/*++
Routine Description:
This routine compares two set of resource lists to
determine if they are exactly the same.
Arguments:
Configuration1 - Supplies a pointer to the first set of resource.
Configuration2 - Supplies a pointer to the second set of resource.
Return Value:
returns TRUE if the two set of resources are the same;
otherwise a value of FALSE is returned.
--*/
{
ULONG resource1Size, resource2Size;
BOOLEAN sameResource = FALSE;
resource1Size = IopDetermineResourceListSize(Configuration1);
resource2Size = IopDetermineResourceListSize(Configuration2);
if (resource1Size == resource2Size) {
if (!memcmp(Configuration1, Configuration2, resource1Size)) {
sameResource = TRUE;
}
}
return sameResource;
}
BOOLEAN
IopChangeInterfaceType(
IN OUT PIO_RESOURCE_REQUIREMENTS_LIST IoResources,
IN OUT PCM_RESOURCE_LIST *AllocatedResources
)
/*++
Routine Description:
This routine takes an Io resourcelist and changes its interfacetype
from internal to default type (isa or eisa or mca).
Arguments:
IoResources - Pointer to requirement list.
AllocatedResources - Pointer to a variable that receives the pointer to the resource list.
Return Value:
BOOLEAN value to indicates if change made or not.
--*/
{
PIO_RESOURCE_LIST IoResourceList;
PIO_RESOURCE_DESCRIPTOR IoResourceDescriptor;
PIO_RESOURCE_DESCRIPTOR IoResourceDescriptorEnd;
LONG IoResourceListCount;
BOOLEAN changed;
ASSERT(AllocatedResources);
changed = FALSE;
if (!IoResources) {
return changed;
}
if (IoResources->InterfaceType == Internal) {
IoResources->InterfaceType = PnpDefaultInterfaceType;
changed = TRUE;
}
IoResourceList = IoResources->List;
IoResourceListCount = IoResources->AlternativeLists;
while (--IoResourceListCount >= 0) {
IoResourceDescriptor = IoResourceList->Descriptors;
IoResourceDescriptorEnd = IoResourceDescriptor + IoResourceList->Count;
for (;IoResourceDescriptor < IoResourceDescriptorEnd; IoResourceDescriptor++) {
if (IoResourceDescriptor->Type == CmResourceTypeReserved &&
IoResourceDescriptor->u.DevicePrivate.Data[0] == Internal) {
IoResourceDescriptor->u.DevicePrivate.Data[0] = PnpDefaultInterfaceType;
changed = TRUE;
}
}
IoResourceList = (PIO_RESOURCE_LIST) IoResourceDescriptorEnd;
}
if (changed) {
PCM_RESOURCE_LIST oldResources = *AllocatedResources;
PCM_RESOURCE_LIST newResources;
PCM_FULL_RESOURCE_DESCRIPTOR cmFullDesc;
PCM_PARTIAL_RESOURCE_DESCRIPTOR cmPartDesc;
ULONG size;
if (oldResources) {
size = IopDetermineResourceListSize(oldResources);
newResources = ExAllocatePool(PagedPool, size);
if (newResources == NULL) {
changed = FALSE;
} else {
ULONG i;
ULONG j;
RtlCopyMemory(newResources, oldResources, size);
//
// Fix up the interface type
//
cmFullDesc = &newResources->List[0];
for (i = 0; i < oldResources->Count; i++) {
if (cmFullDesc->InterfaceType == Internal) {
cmFullDesc->InterfaceType = PnpDefaultInterfaceType;
}
cmPartDesc = &cmFullDesc->PartialResourceList.PartialDescriptors[0];
for (j = 0; j < cmFullDesc->PartialResourceList.Count; j++) {
size = 0;
switch (cmPartDesc->Type) {
case CmResourceTypeDeviceSpecific:
size = cmPartDesc->u.DeviceSpecificData.DataSize;
break;
}
cmPartDesc++;
cmPartDesc = (PCM_PARTIAL_RESOURCE_DESCRIPTOR) ((PUCHAR)cmPartDesc + size);
}
cmFullDesc = (PCM_FULL_RESOURCE_DESCRIPTOR)cmPartDesc;
}
*AllocatedResources = newResources;
}
}
}
return changed;
}
