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diff --git a/Documentation/sound/oss/mwave b/Documentation/sound/oss/mwave new file mode 100644 index 00000000000..858334bb46b --- /dev/null +++ b/Documentation/sound/oss/mwave @@ -0,0 +1,185 @@ + How to try to survive an IBM Mwave under Linux SB drivers + + ++ IBM have now released documentation of sorts and Torsten is busy + trying to make the Mwave work. This is not however a trivial task. + +---------------------------------------------------------------------------- + +OK, first thing - the IRQ problem IS a problem, whether the test is bypassed or +not. It is NOT a Linux problem, but an MWAVE problem that is fixed with the +latest MWAVE patches. So, in other words, don't bypass the test for MWAVES! + +I have Windows 95 on /dev/hda1, swap on /dev/hda2, and Red Hat 5 on /dev/hda3. + +The steps, then: + + Boot to Linux. + Mount Windows 95 file system (assume mount point = /dos95). + mkdir /dos95/linux + mkdir /dos95/linux/boot + mkdir /dos95/linux/boot/parms + + Copy the kernel, any initrd image, and loadlin to /dos95/linux/boot/. + + Reboot to Windows 95. + + Edit C:/msdos.sys and add or change the following: + + Logo=0 + BootGUI=0 + + Note that msdos.sys is a text file but it needs to be made 'unhidden', + readable and writable before it can be edited. This can be done with + DOS' "attrib" command. + + Edit config.sys to have multiple config menus. I have one for windows 95 and + five for Linux, like this: +------------ +[menu] +menuitem=W95, Windows 95 +menuitem=LINTP, Linux - ThinkPad +menuitem=LINTP3, Linux - ThinkPad Console +menuitem=LINDOC, Linux - Docked +menuitem=LINDOC3, Linux - Docked Console +menuitem=LIN1, Linux - Single User Mode +REM menudefault=W95,10 + +[W95] + +[LINTP] + +[LINDOC] + +[LINTP3] + +[LINDOC3] + +[LIN1] + +[COMMON] +FILES=30 +REM Please read README.TXT in C:\MWW subdirectory before changing the DOS= statement. +DOS=HIGH,UMB +DEVICE=C:\MWW\MANAGER\MWD50430.EXE +SHELL=c:\command.com /e:2048 +------------------- + +The important things are the SHELL and DEVICE statements. + + Then change autoexec.bat. Basically everything in there originally should be + done ONLY when Windows 95 is booted. Then you add new things specifically + for Linux. Mine is as follows + +--------------- +@ECHO OFF +if "%CONFIG%" == "W95" goto W95 + +REM +REM Linux stuff +REM +SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP +SET BLASTER=A220 I5 D1 +SET MWROOT=C:\MWW +SET LIBPATH=C:\MWW\DLL +SET PATH=C:\WINDOWS;C:\MWW\DLL; +CALL MWAVE START NOSHOW +c:\linux\boot\loadlin.exe @c:\linux\boot\parms\%CONFIG%.par + +:W95 +REM +REM Windows 95 stuff +REM +c:\toolkit\guard +SET MSINPUT=C:\MSINPUT +SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP +REM The following is used by DOS games to recognize Sound Blaster hardware. +REM If hardware settings are changed, please change this line as well. +REM See the Mwave README file for instructions. +SET BLASTER=A220 I5 D1 +SET MWROOT=C:\MWW +SET LIBPATH=C:\MWW\DLL +SET PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;E:\ORAWIN95\BIN;f:\msdev\bin;e:\v30\bin.dbg;v:\devt\v30\bin;c:\JavaSDK\Bin;C:\MWW\DLL; +SET INCLUDE=f:\MSDEV\INCLUDE;F:\MSDEV\MFC\INCLUDE +SET LIB=F:\MSDEV\LIB;F:\MSDEV\MFC\LIB +win + +------------------------ + +Now build a file in c:\linux\boot\parms for each Linux config that you have. + +For example, my LINDOC3 config is for a docked Thinkpad at runlevel 3 with no +initrd image, and has a parameter file named LINDOC3.PAR in c:\linux\boot\parms: + +----------------------- +# LOADLIN @param_file image=other_image root=/dev/other +# +# Linux Console in docking station +# +c:\linux\boot\zImage.krn # First value must be filename of Linux kernel. +root=/dev/hda3 # device which gets mounted as root FS +ro # Other kernel arguments go here. +apm=off +doc=yes +3 +----------------------- + +The doc=yes parameter is an environment variable used by my init scripts, not +a kernel argument. + +However, the apm=off parameter IS a kernel argument! APM, at least in my setup, +causes the kernel to crash when loaded via loadlin (but NOT when loaded via +LILO). The APM stuff COULD be forced out of the kernel via the kernel compile +options. Instead, I got an unofficial patch to the APM drivers that allows them +to be dynamically deactivated via kernel arguments. Whatever you chose to +document, APM, it seems, MUST be off for setups like mine. + +Now make sure C:\MWW\MWCONFIG.REF looks like this: + +---------------------- +[NativeDOS] +Default=SB1.5 +SBInputSource=CD +SYNTH=FM +QSound=OFF +Reverb=OFF +Chorus=OFF +ReverbDepth=5 +ChorusDepth=5 +SBInputVolume=5 +SBMainVolume=10 +SBWaveVolume=10 +SBSynthVolume=10 +WaveTableVolume=10 +AudioPowerDriver=ON + +[FastCFG] +Show=No +HideOption=Off +----------------------------- + +OR the Default= line COULD be + +Default=SBPRO + +Reboot to Windows 95 and choose Linux. When booted, use sndconfig to configure +the sound modules and voilą - ThinkPad sound with Linux. + +Now the gotchas - you can either have CD sound OR Mixers but not both. That's a +problem with the SB1.5 (CD sound) or SBPRO (Mixers) settings. No one knows why +this is! + +For some reason MPEG3 files, when played through mpg123, sound like they +are playing at 1/8th speed - not very useful! If you have ANY insight +on why this second thing might be happening, I would be grateful. + +=========================================================== + _/ _/_/_/_/ + _/_/ _/_/ _/ + _/ _/_/ _/_/_/_/ Martin John Bartlett + _/ _/ _/ _/ (martin@nitram.demon.co.uk) +_/ _/_/_/_/ + _/ +_/ _/ + _/_/ +=========================================================== |