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Fix VideoPortMapMemory.

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svn path=/trunk/; revision=13411
This commit is contained in:
Gregor Anich 2005-02-05 00:09:56 +00:00
parent 9566275d1b
commit 824d1552c9
1 changed files with 24 additions and 1 deletions
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25
reactos/drivers/video/videoprt/resource.c
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@ -82,6 +82,7 @@ IntVideoPortMapMemory(
IN PHYSICAL_ADDRESS IoAddress,
IN ULONG NumberOfUchars,
IN UCHAR InIoSpace,
IN HANDLE ProcessHandle,
OUT VP_STATUS *Status)
{
PHYSICAL_ADDRESS TranslatedAddress;
@ -101,6 +102,23 @@ IntVideoPortMapMemory(
InIoSpace &= ~VIDEO_MEMORY_SPACE_P6CACHE;
}
if (ProcessHandle != NULL && (InIoSpace & VIDEO_MEMORY_SPACE_USER_MODE) == 0)
{
DPRINT("ProcessHandle is not NULL (0x%x) but InIoSpace does not have "
"VIDEO_MEMORY_SPACE_USER_MODE set! Setting "
"VIDEO_MEMORY_SPACE_USER_MODE.\n",
ProcessHandle);
InIoSpace |= VIDEO_MEMORY_SPACE_USER_MODE;
}
else if (ProcessHandle == NULL && (InIoSpace & VIDEO_MEMORY_SPACE_USER_MODE) != 0)
{
DPRINT("ProcessHandle is NULL (0x%x) but InIoSpace does have "
"VIDEO_MEMORY_SPACE_USER_MODE set! Setting ProcessHandle "
"to NtCurrentProcess()\n",
ProcessHandle);
ProcessHandle = NtCurrentProcess();
}
if ((InIoSpace & VIDEO_MEMORY_SPACE_USER_MODE) == 0 &&
!IsListEmpty(&DeviceExtension->AddressMappingListHead))
{
@ -155,7 +173,7 @@ IntVideoPortMapMemory(
{
NTSTATUS NtStatus;
MappedAddress = NULL;
NtStatus = IntVideoPortMapPhysicalMemory(NtCurrentProcess(),
NtStatus = IntVideoPortMapPhysicalMemory(ProcessHandle,
TranslatedAddress,
NumberOfUchars,
PAGE_READWRITE/* | PAGE_WRITECOMBINE*/,
@ -249,6 +267,8 @@ IntVideoPortUnmapMemory(
/* If there was no kernelmode mapping for the given address found we assume
* that the given address is a usermode mapping and try to unmap it.
*
* FIXME: Is it ok to use NtCurrentProcess?
*/
Status = ZwUnmapViewOfSection(NtCurrentProcess(), MappedAddress);
if (!NT_SUCCESS(Status))
@ -276,6 +296,7 @@ VideoPortGetDeviceBase(
IoAddress,
NumberOfUchars,
InIoSpace,
NULL,
NULL);
}
@ -332,6 +353,7 @@ VideoPortMapMemory(
NTSTATUS Status;
DPRINT("VideoPortMapMemory\n");
DPRINT("- *VirtualAddress: 0x%x\n", *VirtualAddress);
DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
*VirtualAddress = IntVideoPortMapMemory(
@ -339,6 +361,7 @@ VideoPortMapMemory(
PhysicalAddress,
*Length,
*InIoSpace,
(HANDLE)*VirtualAddress,
&Status);
return Status;