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76 Commits

Author SHA1 Message Date
Cameron Grant
7c438dbe9c add devfs support. when devfs is enabled, sysctl hw.sndunit is used to set 
which sound unit the /dev/{dsp,mixer,dspW,audio} links point at.  this can
also be set from the loader.
 2000-08-29 16:21:33 +00:00
Cameron Grant
f314f3dad2 add module metadata. this is a hack, sound drivers will eventually present a 
bus to which pcm, mixer, etc will attach.
 2000-07-03 20:52:27 +00:00
Cameron Grant
e4d5b2502d fix a bug where opening for write would not fail if channel allocation failed 
when playing, if we stall for 1s with no data advancing, abort and mark the
channel dead - fail all future operations
 2000-06-20 23:27:12 +00:00
Cameron Grant
9c3268206d don't panic if we try to add a channel we said we wouldn't 2000-06-06 22:24:53 +00:00
Cameron Grant
17dbf67736 if a device has no play or no record channels, set its simplex flag. 2000-06-01 01:32:30 +00:00
Cameron Grant
a618cffeb8 duh, i forgot to change a bitmask, sorry alexander 
Submitted by:	Alexander Matey <matey@cis.ohio-state.edu>
 2000-04-26 23:08:12 +00:00
Cameron Grant
dd1863690a fix minor numbers for multi-channel devices 
Submitted by:	Alexander Matey <matey@cis.ohio-state.edu>
 2000-04-26 20:06:52 +00:00
Cameron Grant
bd18f33408 allow /dev/dsp to be opened seperately for reading and writing. 2000-04-05 01:13:42 +00:00
Cameron Grant
39004e693d update the ac97 layer: 
* add a callback for initialising the mixer interface
* support ac97 2.1 variable rate audio feature

fix ac97-using drivers for the above

add suspend/resume support for neomagic
 2000-03-20 15:30:50 +00:00
Cameron Grant
9bc502089a fix missing \n in sndstat output 2000-01-16 12:52:22 +00:00
Cameron Grant
bf8ca271a3 modify sndstat output 2000-01-09 08:07:46 +00:00
Cameron Grant
833f702348 allow mixer-only devices - ie, devices with no play/rec channels 2000-01-06 04:11:36 +00:00
Cameron Grant
bbb5bf3d69 don't panic if channel init fails, report and fail gracefully 2000-01-05 20:44:41 +00:00
Cameron Grant
1ad869dbc6 allow (broken) apps to use mixer ioctls on dsp devices. eg: vmware 
Submitted by:	"Vladimir N. Silyaev" <vsilyaev@mindspring.com>
 1999-12-20 00:56:51 +00:00
Cameron Grant
7207eca657 move make_dev operations for audio channels to pcm_addchan(). in theory, 
with modifications to MAKEDEV this will allow use of multiple output streams
on cards supporting it, eg trident 4dwave.
 1999-12-19 15:27:24 +00:00
Cameron Grant
0927bf4365 move channel-swapping support to the hardware driver since it knows the card 
state best
 1999-12-12 02:18:58 +00:00
Peter Wemm
c2af6f650c Update for pnp adjustments regarding NPNP. 
Also, optimize out a mess of #if's that were duplicating work already
done by config(8).  For example, if a file is marked as
"dev/sound/pci/foo.c optional pcm pci" then it's only added if pcm *and*
pci are present, so #if NPCM > 0 and #if NPCI > 0 are totally redundant.
A bit more work is still needed.

Discussed with: cg (a few weeks ago)
 1999-12-06 18:26:33 +00:00
Cameron Grant
0e25481f93 fix dma underrun issues 
mutate some panics to kasserts
add more spl protection

PR:		kern/14990
Partially Submitted by:	Vladimir N.Silyaev <vns@delta.odessa.ua>
Reviewed by:	dfr
 1999-12-05 19:09:13 +00:00
Cameron Grant
ef9308b1ce repo-copied to make way for newmidi, this commit updates include paths 1999-11-20 16:50:33 +00:00
Seigo Tanimura
05b17b64dc The unit of sndstat is fixed to zero. 1999-11-06 05:31:47 +00:00
Seigo Tanimura
083279e41b Fix for multiple pcm devices. 1999-11-03 08:10:49 +00:00
Seigo Tanimura
1134623173 Call make_dev() to shut up the warning. 
Pointed out by:	Donn Miller <dmmiller@cvzoom.net>
 1999-11-01 14:29:07 +00:00
Cameron Grant
5b78a73443 * add a non-reset device- will not reset the channel on open. you 
will have to mknod yourself for now.
* don't eat the first write()
* partial rvplayer fix- don't panic on unaligned writes unless our
  feeder chain requires them for downconversion.  a fuller fix is
  on the way.
 1999-09-28 21:43:35 +00:00
Poul-Henning Kamp
d6a0e38a1b Remove five now unused fields from struct cdevsw. They should never 
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
 1999-09-25 18:24:47 +00:00
Peter Wemm
53c5a968fe $Id$ -> $FreeBSD$ 1999-09-01 06:58:27 +00:00
Cameron Grant
987e59726a say hello to newpcm. it is not yet enabled, requiring new pnp code from dfr 
to compile successfully.  further details will be provided in the commit
enabling newpcm.
 1999-09-01 04:08:39 +00:00