Commit Graph

13 Commits

Author SHA1 Message Date
Cameron Grant
3f22597838 update my email address. 2003-09-07 16:28:03 +00:00
Ian Dowse
72d173fa8f Fix an off-by-one error in feed_monotostereo16() that caused the
first sample in the buffer to be ignored. The bug caused a repetitive
glitch in one of the stereo channels when playing mono sound on
configurations that use the monotostereo16 feeder.

Reviewed by:	orion
2003-08-23 12:18:30 +00:00
Orion Hodson
6635978f23 Additional malloc failure checks. 2003-04-20 17:08:56 +00:00
Orion Hodson
a7576e2e4b Back out last commit, which is fine in theory, but ignores the fact
that a lock is held whilst the allocations are made (M_WAITOK -> M_NOWAIT).
2003-03-05 14:48:28 +00:00
Brian Feldman
3fbe138ca9 It seems that sound(4)'s feeder routines don't need to allocate memory
without waiting, since they are called from a system-call context only.
This appears to fix all sorts of problems with open("/dev/dsp", O_WRONLY)
randomly returning ENXIO.

Found by:	cognet
2003-02-23 20:49:45 +00:00
Cameron Grant
67beb5a5c8 various fixes to eliminate locking warnings
Approved by:	re
Reviewed by:	orion
2002-11-25 17:17:43 +00:00
John Baldwin
2c823989e1 Fix a warning due to the code assuming sizeof(int) == sizeof(void *) which
is not true on the alpha.  I think that other parts of this code also make
this implicit assumption as well.
2002-04-11 15:31:01 +00:00
Cameron Grant
67b1dce3bc many changes:
* add new channels to the end of the list so channels used in order of
addition

* de-globalise definition of struct snddev_info and provide accessor
functions where necessary.

* move the $FreeBSD$ tag in each .c file into a macro and allow the
/dev/sndstat handler to display these when set to maximum verbosity to aid
debugging.

* allow each device to register its own sndstat handler to reduce the amount
of groping sndstat must do in foreign structs.
2001-08-23 11:30:52 +00:00
Cameron Grant
7c3968cc32 fix feeder initialisation methods to return correct result codes. 2001-04-08 20:17:03 +00:00
Cameron Grant
66ef8af5b0 mega-commit.
this introduces a new buffering mechanism which results in dramatic
simplification of the channel manager.

as several structures have changed, we take the opportunity to move their
definitions into the source files where they are used, make them private and
de-typedef them.

the sound drivers are updated to use snd_setup_intr instead of
bus_setup_intr, and to comply with the de-typedefed structures.

the ac97, mixer and channel layers have been updated with finegrained
locking, as have some drivers- not all though.  the rest will follow soon.
2001-03-24 23:10:29 +00:00
Cameron Grant
40765b397d add a format feeder for conversion from alaw to ulaw and vice versa.
Submitted by:   Orion Hodson <O.Hodson@cs.ucl.ac.uk>
2001-02-13 22:00:57 +00:00
Cameron Grant
0f55ac6c1a kobjify.
this gives us several benefits, including:

* easier extensibility- new optional methods can be added to
  ac97/mixer/channel classes without having to fixup every driver.

* forward compatibility for drivers, provided no new mandatory methods are
  added.
2000-12-18 01:36:41 +00:00
Cameron Grant
c9c6ba09e4 prepare for adding a rate conversion feeder.
move format conversion feeders to feeder_fmt.c - no pertinent history so no
repo-copy.
2000-09-23 22:11:32 +00:00