Author: fireball
Date: Tue Sep 23 06:45:40 2008
New Revision: 36426
URL:
http://svn.reactos.org/svn/reactos?rev=36426&view=rev
Log:
[FORMATTING]
- Reformat to the kernel coding style.
Modified:
trunk/reactos/subsystems/win32/csrss/video.c
Modified: trunk/reactos/subsystems/win32/csrss/video.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/vid…
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/video.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/csrss/video.c [iso-8859-1] Tue Sep 23 06:45:40 2008
@@ -1,115 +1,117 @@
-/* $Id$
- *
- * ReactOS Project
+/*
+ * PROJECT: ReactOS Client/Server Runtime subsystem
+ * LICENSE: GPL v2 or later - See COPYING in the top level directory
+ * FILE: subsystems/win32/csrss/video.c
+ * PURPOSE: Video memory initialization.
+ * PROGRAMMERS: ReactOS Development Team
*/
+
+/* INCLUDES ******************************************************************/
#include <csrss.h>
#define NDEBUG
#include <debug.h>
+/* FUNCTIONS *****************************************************************/
+
ULONG
InitializeVideoAddressSpace(VOID)
{
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING PhysMemName =
RTL_CONSTANT_STRING(L"\\Device\\PhysicalMemory");
- NTSTATUS Status;
- HANDLE PhysMemHandle;
- PVOID BaseAddress;
- PVOID NullAddress;
- LARGE_INTEGER Offset;
- ULONG ViewSize;
- CHAR IVTAndBda[1024+256];
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ UNICODE_STRING PhysMemName =
RTL_CONSTANT_STRING(L"\\Device\\PhysicalMemory");
+ NTSTATUS Status;
+ HANDLE PhysMemHandle;
+ PVOID BaseAddress;
+ PVOID NullAddress;
+ LARGE_INTEGER Offset;
+ ULONG ViewSize;
+ CHAR IVTAndBda[1024+256];
- /*
- * Open the physical memory section
- */
- InitializeObjectAttributes(&ObjectAttributes,
- &PhysMemName,
- 0,
- NULL,
- NULL);
- Status = ZwOpenSection(&PhysMemHandle, SECTION_ALL_ACCESS,
- &ObjectAttributes);
- if (!NT_SUCCESS(Status))
- {
- DbgPrint("Couldn't open \\Device\\PhysicalMemory\n");
- return(0);
- }
+ /* Open the physical memory section */
+ InitializeObjectAttributes(&ObjectAttributes,
+ &PhysMemName,
+ 0,
+ NULL,
+ NULL);
+ Status = ZwOpenSection(&PhysMemHandle,
+ SECTION_ALL_ACCESS,
+ &ObjectAttributes);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Couldn't open \\Device\\PhysicalMemory\n");
+ return 0;
+ }
- /*
- * Map the BIOS and device registers into the address space
- */
- Offset.QuadPart = 0xa0000;
- ViewSize = 0x100000 - 0xa0000;
- BaseAddress = (PVOID)0xa0000;
- Status = NtMapViewOfSection(PhysMemHandle,
- NtCurrentProcess(),
- &BaseAddress,
- 0,
- 8192,
- &Offset,
- &ViewSize,
- ViewUnmap,
- 0,
- PAGE_EXECUTE_READWRITE);
- if (!NT_SUCCESS(Status))
- {
- DbgPrint("Couldn't map physical memory (%x)\n", Status);
- NtClose(PhysMemHandle);
- return(0);
- }
- NtClose(PhysMemHandle);
- if (BaseAddress != (PVOID)0xa0000)
- {
- DbgPrint("Couldn't map physical memory at the right address "
- "(was %x)\n", BaseAddress);
- return(0);
- }
+ /* Map the BIOS and device registers into the address space */
+ Offset.QuadPart = 0xa0000;
+ ViewSize = 0x100000 - 0xa0000;
+ BaseAddress = (PVOID)0xa0000;
+ Status = NtMapViewOfSection(PhysMemHandle,
+ NtCurrentProcess(),
+ &BaseAddress,
+ 0,
+ 8192,
+ &Offset,
+ &ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_EXECUTE_READWRITE);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Couldn't map physical memory (%x)\n", Status);
+ NtClose(PhysMemHandle);
+ return 0;
+ }
- /*
- * Map some memory to use for the non-BIOS parts of the v86 mode address
- * space
- */
- BaseAddress = (PVOID)0x1;
- ViewSize = 0xa0000 - 0x1000;
- Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
- &BaseAddress,
- 0,
- &ViewSize,
- MEM_COMMIT,
- PAGE_EXECUTE_READWRITE);
- if (!NT_SUCCESS(Status))
- {
- DbgPrint("Failed to allocate virtual memory (Status %x)\n", Status);
- return(0);
- }
- if (BaseAddress != (PVOID)0x0)
- {
- DbgPrint("Failed to allocate virtual memory at right address "
- "(was %x)\n", BaseAddress);
- return(0);
- }
+ /* Close physical memory section handle */
+ NtClose(PhysMemHandle);
- /*
- * Get the real mode IVT and BDA from the kernel
- */
- Status = NtVdmControl(VdmInitialize, IVTAndBda);
+ if (BaseAddress != (PVOID)0xa0000)
+ {
+ DPRINT1("Couldn't map physical memory at the right address "
+ "(was %x)\n", BaseAddress);
+ return 0;
+ }
+
+ /* Map some memory to use for the non-BIOS parts of
+ * the v86 mode address space
+ */
+ BaseAddress = (PVOID)0x1;
+ ViewSize = 0xa0000 - 0x1000;
+ Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
+ &BaseAddress,
+ 0,
+ &ViewSize,
+ MEM_COMMIT,
+ PAGE_EXECUTE_READWRITE);
if (!NT_SUCCESS(Status))
- {
- DbgPrint("NtVdmControl failed (status %x)\n", Status);
- return(0);
- }
+ {
+ DPRINT1("Failed to allocate virtual memory (Status %x)\n", Status);
+ return 0;
+ }
+ if (BaseAddress != (PVOID)0x0)
+ {
+ DPRINT1("Failed to allocate virtual memory at right address "
+ "(was %x)\n", BaseAddress);
+ return 0;
+ }
- /*
- * Copy the IVT and BDA into the right place
- */
- NullAddress = (PVOID)0x0; /* Workaround for GCC 3.4 */
- memcpy(NullAddress, IVTAndBda, 1024);
- memcpy((PVOID)0x400, &IVTAndBda[1024], 256);
+ /* Get the real mode IVT and BDA from the kernel */
+ Status = NtVdmControl(VdmInitialize, IVTAndBda);
+ if (!NT_SUCCESS(Status))
+ {
+ DbgPrint("NtVdmControl failed (status %x)\n", Status);
+ return 0;
+ }
- return(1);
+ /* Copy the IVT and BDA into the right place */
+ NullAddress = (PVOID)0x0; /* Workaround for GCC 3.4 */
+ memcpy(NullAddress, IVTAndBda, 1024);
+ memcpy((PVOID)0x400, &IVTAndBda[1024], 256);
+
+ /* Return success */
+ return 1;
}
-
/* EOF */