Commit Graph

16 Commits

Author SHA1 Message Date
Joel Dahl
262e034444 Add a standard BSD license to these files.
Discussed with:	rwatson
Approved by:	luigi
2007-02-02 13:33:35 +00:00
Don Lewis
9d2820eaac Implement sbc_lockassert() and sb_lockassert() functions to allow
proper locking to be checked at runtime.

Remove sb_lock() and sb_unlock() calls from sb_reset_dsp() because the
latter is called from sb_setup() with the lock already held.  Add a
call to sb_lockassert().

Surround the call to sb_reset_dsp() in sb16_attach() with sb_lock()
and sb_unlock() calls.

Tested by:	Bartek Marcinkiewicz <junior AT p233.if.pwr.wroc.pl>
2004-05-13 11:32:54 +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
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
09eb10434a remove unused mixer stuff 1999-12-19 18:18:55 +00:00
Cameron Grant
354398891a make the vibra16x work for playback at least, record is untested 1999-12-18 22:21:47 +00:00
Cameron Grant
d4a72b067c make sb dependant on sbc
add support for non-pnp cards to sbc
move card identification to sbc
channel-swapping code is in sb now instead of dsp
vibra16x support is still broken, but will be fixed soon

note: sbc is now compulsory for sb cards

for pnp cards use:
device sbc0

for non-pnp cards eg:
device sbc0 at isa? port 0x240 irq 5 drq 3 flags 0x15
(hints as oldpcm)

both in addition to:
device pcm0

Reviewed by:	tanimura,dfr
Said he liked it: peter
1999-12-12 02:30:19 +00:00
Doug Rabson
62c631ed7f * Ignore the wierd fakechan workarounds for simplex in dsp_ioctl().
Without this, ioctl commands for setting formats and speeds were
  essentially ignored for simplex devices until the application actually
  performed a read or write.
* Make sure that both channels are set in the SB mixer code and provide a
  mixer table specifically for the ess18xx which supports the extended
  accuracy available on this part.
* Fix a stupid bug in ess_format() which ignored the passed-in format and
  changed the hardware based on the value which was set last time. This
  meant that the hardware setting was often not set correctly at all.
* Add a custom identify driver for the ESS1888 which automagically detects
  and adds the device in a pseudo-PnP way. This driver also emits the magic
  sequence which enables the sound hardware after a hard reset, allowing
  it to work correctly for the sound hardware of a PWS 433au (and probably
  all other PWS class alpha machines).

With these changes, I was able to play back simple sounds on my 433au. I
have not tested recording or any other formats other than 8bit ulaw and
16bit stereo.
1999-11-13 18:31:31 +00:00
Cameron Grant
bfd9d61ea6 mss and sb drivers updated for newpcm
Reviewed by:	peter, dfr
1999-09-01 04:01:57 +00:00
Peter Wemm
8baa9b47b6 Quiet a warning, put a #if 0 around some (I believe) unused static structs. 1999-05-09 13:21:06 +00:00
Brian Somers
db21d4f4fc Support ESS1868 (and probably ESS688 & ESS1668).
Submitted by: Max Khon <fjoe@husky.iclub.nsu.ru>
1998-12-10 18:36:10 +00:00
Luigi Rizzo
fe854067c7 Update the pcm driver to the most recent version. This should
add support for Vibra16X, OPTi925, and bring in several assorted
fixes to the code and documentation.
Also present here are apm hooks so that laptops can properly
reconfigure the hardware after suspend (tested on the Libretto50).
Reviewed by: jordan
1998-10-02 17:26:37 +00:00
Marc G. Fournier
45f4be3300 Upgrade Luigi's audio driver to Jan/23 version... will bring in Feb/15th
version as soon as I've tested it...

Installed/tested on my home machine...any problems, please report directly
to me.
1998-02-17 14:17:13 +00:00
John-Mark Gurney
60dc9be97b update of Luigi's sound drivers...
this updates to 971117 plus a small sb change that was after that release..
1997-11-23 07:03:21 +00:00
John-Mark Gurney
faac9650a5 This updates Luigi's sound code to the basic code in snd971023...
changes:
    o rip the old select from his distribution to prevent extra pollution
    o the code now uses audio dma, helps reduce clicks
    o improved card support, should work in full duplex on sb16 cards
    o add better voxware ioctl support pointed out by Joao Carlos Mendes
       Luis <jonny@coppe.ufrj.br>
    o remove an unused file that I included for more complete history
    o and MANY other changes

I have personally tested this code with a CS4237 based card and an AWE32
(non-PnP).  Both cards worked fine in 8bit and 16bit mode.
1997-10-31 12:24:28 +00:00
John-Mark Gurney
b7da7b3e2a Import of Luigi Rizzo's sound code. For more information about the driver
check out the README that is included.

Submitted by:	Luigi Rizzo <luigi@labinfo.iet.unipi.it>
1997-09-14 21:42:12 +00:00