Date: Mon, 14 Jul 1997 19:56:05 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: multimedia@freebsd.org Subject: Yet another snap of the sound code... Message-ID: <199707141756.TAA11361@labinfo.iet.unipi.it>
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I have put another snap of my code on the sound driver. Note that
I cannot test the code since I don't have a working system yet (my
test machine, a Intel Zappa with a CS4232 PnP device on board,
hangs as soon as I issue the reset command to the soundblaster port :)
Since I cannot find the data sheets of the 4232 I am out of luck for
the moment...
But I have successfully built, booted and run (without using the
sound drivers) a kernel with all the drivers compiled in.
There is a wide choice of formats at
http://www.iet.unipi.it/~luigi/
snd970714.tgz (298KB)
the full sound directory
gus10a-to-snd970714.diffs.gz (20KB)
diffs against amancio's latest version, guspnp10a
snd970711-to-snd970714.diffs.gz
diffs against my previous snap, snap970711
I have merged all of amancio's patches found in guspnp9 and guspnp10a
(including replacement of ulaw.h with his newer version).
The new snap contains the following:
- some notes on the structure of the driver (see README.LUIGI);
- a first attempt at removing all the CONFIGURE_SOUNDCARD, CONFIG_XXX
macros. Whenever I could understand that it worked, I tested
NSND, NSB, NGUS ... and other macros, which are generated by the
config program, and thus less error prone;
My goal is to have the "config" program take care of the
configuration process, avoiding the mess which is now in
local.h . As a matter of fact I am not too far from a working
solution, I am just looking for a way to reduce the kernel
bloat which is involved with my approach (which is no worse
than the current one).
- more cleanup and removal of unused code and variables; this also
involves some prototypes;
- some timer function moved from soundcard.c to sequencer.c, where
they are used.
- in some drivers I have removed the calls to the probe() routine
from the attach routine. I am going to do this on other drivers
as well.
TODO (AND PLEASE IF YOU HAVE IDEAS ON THIS, SEND YOUR COMMENTS TO ME OR
TO THE MULTIMEDIA LIST):
- prepare a list of good entries for the configuration file. Those
with working hardware can please send a copy of the relevant lines
in their config files ?
- do the files in i386/isa/sound/freebsd have any purpose, or
we can nuke them ?
- there are some missing lines in i386/conf/files.i386, so that
some pieces of the driver are never compiled in. Again,
suggestions are welcome.
Cheers
Luigi
-----------------------------+--------------------------------------
Luigi Rizzo | Dip. di Ingegneria dell'Informazione
email: luigi@iet.unipi.it | Universita' di Pisa
tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy)
fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/
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