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Simple patch program for the NVidia nv4_mini.sys driver
svn path=/trunk/; revision=6565
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Gé van Geldorp
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commit
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4 changed files with 285 additions and 0 deletions
6
reactos/apps/utils/patchnv4/.cvsignore
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reactos/apps/utils/patchnv4/.cvsignore
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*.o
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*.d
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*.exe
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*.coff
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*.sym
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*.map
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21
reactos/apps/utils/patchnv4/Makefile
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reactos/apps/utils/patchnv4/Makefile
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PATH_TO_TOP = ../../..
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TARGET_NORC = yes
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TARGET_TYPE = program
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TARGET_APPTYPE = console
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TARGET_NAME = patchnv4
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TARGET_SDKLIBS =
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TARGET_OBJECTS = patchnv4.o
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TARGET_CFLAGS += -Wall -Werror
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include $(PATH_TO_TOP)/rules.mak
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include $(TOOLS_PATH)/helper.mk
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# EOF
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131
reactos/apps/utils/patchnv4/nv4_howto.html
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reactos/apps/utils/patchnv4/nv4_howto.html
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<!-- $Id: nv4_howto.html,v 1.1 2003/11/07 20:10:13 gvg Exp $ -->
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<HTML>
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<HEAD>
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<TITLE>Using NVidia drivers on ReactOS How-to</TITLE>
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</HEAD>
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<BODY>
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<CENTER><H1>Using NVidia drivers on ReactOS How-to</H1></CENTER>
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<H2>1. Introduction</H2>
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There is little support for changing video drivers (or any other driver for that
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matter) in ReactOS at the moment. You have to know how to access the CVS repository
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and how to compile (simple) programs. If this is too complicated, please wait a few
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months, we should have better installation tools then.
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<H2>2. Supported hardware</H2>
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The NVidia drivers were tested on the following video card:
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<UL>
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</LI>NVidia Riva TNT2 Model 64</LI>
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</UL>
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However, according to the NVidia website, the same driver supports a whole series
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of video cards. If you find this driver works under ReactOS with other cards, please
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let us know on the <A HREF="mailto:ros-general@reactos.com">ros-general mailing list</A>
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<H2>3. Download the drivers</H2>
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First, go to the NVidia website, <A HREF="http://www.nvidia.com">www.nvidia.com</A>,
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choose "DOWNLOAD DRIVERS" from the menu at the top of the page (and
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"Download Drivers" again from the drop-down menu). Choose "Graphics Driver"
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in the first box, "GeForce and TNT2" in the second box and "Windows NT4"
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in the third box, then click "Go!". This How-to assumes you see a page identifying the
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driver you are about to download as version 43.45, release on April 10, 2003.
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Download the English version.<BR>
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(<A HREF="http://www.nvidia.com/object/winnt_43.45">This</A> is a direct link to the
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download page.)
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<H2>4. Unpack the drivers</H2>
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Start the file you just downloaded (note: you need to do this on a MS-Windows computer,
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doesn't work on ReactOS yet). It will ask you for a directory where to save the files.
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You can accept the default of C:\NVIDIA\WinNT4\43.45 or change it to your liking, just
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remember where you put them.... After the files are unpacked, the install wizard will
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start. Just press "Cancel" on the Welcome screen and tell the thing that, yes, you
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are quite sure you want to cancel the installation.<BR>
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Open a Command Prompt window and cd to C:\NVIDIA\WinNT4\43.45 (or wherever you put
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the files). You should have a nv4_mini.sy_ and a nv4_disp.dl_ file. Issue the following
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commands:
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<PRE>
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expand nv4_mini.sy_ nv4_mini.sys
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expand nv4_disp.dl_ nv4_disp.dll
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</PRE>
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After this, you should have a nv4_mini.sys file of 1511936 bytes and a nv4_disp.dll file
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of 569807 bytes.
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<H2>5. Patch the miniport driver</H2>
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Since ReactOS is not 100% binary compatible with MS-Windows yet, the miniport driver
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(nv4_mini.sys) needs to be patched. There is a small patch program in the ReactOS CVS
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tree at reactos/apps/utils/patchnv4 which you need to compile. Copy the patchnv4.exe
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to the directory where you have your nv4_mini.sys file and run it. Afterwards, you
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should have a nv4_mini.sys.orig (the original) and a nv4_mini.sys (the patched
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version).<BR>
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Note that we're working towards binary compatibility, so if you're not reading this
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on the <A HREF="http://www.reactos.com">ReactOS website</A>, please go there and check
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if the patching is still necessary (ReactOS might have been fixed...).
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<H2>6. Install the drivers</H2>
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The first step is simple, copy the (patched) nv4_mini.sys file to \ReactOS\System32\drivers
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and the nv4_disp.dll file to \ReactOS\System32. The second step is to update the
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registry to actually load the driver. Check out the CVS tree and edit the file
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reactos/bootdata/hivesys.inf. Add the following lines:
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<PRE>
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; NVidia driver
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4","ErrorControl",0x00010001,0x00000000
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4","Group",0x00000000,"Video"
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4","ImagePath",0x00020000,"system32\drivers\nv4_mini.sys"
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4","Start",0x00010001,0x00000004
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4","Type",0x00010001,0x00000001
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4\Device0","CapabilityOverride",0x00010001,0x00000000
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4\Device0","EnableVia4x",0x00010001,0x00000001
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4\Device0","InstalledDisplayDrivers",0x00010000,"nv4_disp"
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HKLM,"SYSTEM\CurrentControlSet\Services\nv4\Device0","NVREGSWITCHES",0x00000001,43,52,54,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,34,38,30,2c,38,2c,36,30,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,34,38,30,2c,38,\
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2c,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,\
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34,38,30,2c,38,2c,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,36,34,30,2c,34,38,30,2c,38,2c,36,30,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,36,34,30,2c,34,38,30,2c,38,2c,36,30,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,34,38,30,2c,38,2c,36,30,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,34,38,30,2c,38,\
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2c,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,36,34,30,2c,\
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34,38,30,2c,38,2c,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,36,30,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,36,30,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,36,30,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,44,4d,54,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
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00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,01,00,\
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00,00,00,04,00,00,40,00,00,00,00,04,00,00,00,06,00,00,00,00,00,00,01,00,00,\
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00,00,00,00,00,00,00,00,00,05,00,00,00,00,00,04,00,00,00,50,00,00,00,01,00,\
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00,00,00,01,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,99,99,99,99,99,\
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99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,00,00,\
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00,00
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","Attach.ToDesktop",0x00010001,1
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","Attach.RelativeX",0x00010001,0
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","Attach.RelativeY",0x00010001,0
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.BitsPerPel",0x00010001,16
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.XResolution",0x00010001,1152
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.YResolution",0x00010001,864
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.VRefresh",0x00010001,85
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.Flags",0x00010001,0
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.XPanning",0x00010001,0
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HKLM,"SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Services\nv4\Device0","DefaultSettings.YPanning",0x00010001,0
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</PRE>
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Feel free to adjust the DefaultSettings.BitsPerPel, DefaultSettings.XResolution,
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DefaultSettings.YResolution and DefaultSettings.VRefresh (check the Display control
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panel applet in MS-Windows for available settings for your card/monitor combo).<BR>
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Search that same file for the "VGA miniport driver" section and change the "Start"
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line in that section to:
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<PRE>
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HKLM,"SYSTEM\CurrentControlSet\Services\Vga","Start",0x00010001,0x00000004
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</PRE>
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(i.e. set the last value on that line to 4).<BR>
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Rebuild the registry with the command "make registry" and copy the resulting SYSTEM file
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to /ReactOS/System32/config. Reboot and enjoy.
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</BODY>
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</HTML>
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127
reactos/apps/utils/patchnv4/patchnv4.c
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127
reactos/apps/utils/patchnv4/patchnv4.c
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/* $Id: patchnv4.c,v 1.1 2003/11/07 20:10:13 gvg Exp $
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*
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* Patch the NVidia miniport driver to work with ReactOS
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*
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* Should become obsolete
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*/
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#include <stdio.h>
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#include <stdlib.h>
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struct Patch
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{
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long Offset;
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unsigned char ExpectedValue;
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unsigned char NewValue;
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};
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static struct Patch Patches[ ] =
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{
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{ 0x1EBA9, 0x30, 0x3C },
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{ 0x1EBAA, 0xC0, 0xF0 },
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{ 0x1EC0B, 0x04, 0x01 },
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{ 0x1EC67, 0x30, 0x3C },
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{ 0x1EC68, 0xC0, 0xF0 }
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};
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int
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main(int argc, char *argv[])
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{
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static char OriginalName[] = "nv4_mini.sys";
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static char TempName[] = "nv4_mini.tmp";
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static char BackupName[] = "nv4_mini.sys.orig";
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FILE *File;
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unsigned char *Buffer;
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long Size;
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unsigned n;
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/* Read the whole file in memory */
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File = fopen(OriginalName, "rb");
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if (NULL == File)
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{
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perror("Unable to open original file");
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exit(1);
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}
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if (fseek(File, 0, SEEK_END))
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{
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perror("Unable to determine file length");
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fclose(File);
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exit(1);
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}
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Size = ftell(File);
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if (-1 == Size)
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{
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perror("Unable to determine file length");
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fclose(File);
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exit(1);
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}
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Buffer = malloc(Size);
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if (NULL == Buffer)
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{
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perror("Can't allocate buffer");
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fclose(File);
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exit(1);
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}
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rewind(File);
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if (Size != fread(Buffer, 1, Size, File))
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{
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perror("Error reading from original file");
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free(Buffer);
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fclose(File);
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exit(1);
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}
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fclose(File);
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/* Patch the file */
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for (n = 0; n < sizeof(Patches) / sizeof(struct Patch); n++)
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{
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if (Buffer[Patches[n].Offset] != Patches[n].ExpectedValue)
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{
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fprintf(stderr, "Expected value 0x%02x at offset 0x%lx but found 0x%02x\n",
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Patches[n].ExpectedValue, Patches[n].Offset,
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Buffer[Patches[n].Offset]);
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free(Buffer);
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exit(1);
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}
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Buffer[Patches[n].Offset] = Patches[n].NewValue;
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}
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/* Write the new file */
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File = fopen(TempName, "wb");
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if (NULL == File)
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{
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perror("Unable to open output file");
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free(Buffer);
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exit(1);
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}
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if (Size != fwrite(Buffer, 1, Size, File))
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{
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perror("Error writing to output file");
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fclose(File);
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remove(TempName);
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free(Buffer);
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exit(1);
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}
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fclose(File);
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free(Buffer);
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/* Rename the original file, removing an existing backup */
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remove(BackupName);
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if (0 != rename(OriginalName, BackupName))
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{
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perror("Failed to rename original file");
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remove(TempName);
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exit(1);
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}
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/* Rename the new file */
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if (0 != rename(TempName, OriginalName))
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{
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perror("Failed to rename new file");
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remove(TempName);
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rename(BackupName, OriginalName);
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exit(1);
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}
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return 0;
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}
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