43ba4e27bd
Adjust for config changes.
1998-01-12 08:44:08 +00:00
a908b2b30e
Fix three problems spotted by mycroft:
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- Closing the audio device should stop recording.
- Manipulating the pause function could accidentally start playing or recording.
- AUDIO_FLUSH could accidentally start playing or recording.
1997-12-03 01:01:19 +00:00
b366d54e2e
Fix slight glitch in last commit when AUDIO_DEBUG is on.
1997-10-29 02:11:45 +00:00
9f84e63746
Do audio attachment the right way. From Chris Demetriou.
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(Maybe I'll get the hang of the configuration stuff one of these days. :-)
1997-10-29 02:00:20 +00:00
e7029fc0da
Make the audio API (almost) SunOS compatible.
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The changes is to allow some limited mixer manipulation through
the audio device (instead of the mixer device).
This rendered 4 methods in audio_hw_if unused so garbage collect these.
1997-10-19 07:41:33 +00:00
25ea46120a
TMS320AV110 (mpeg layer 2 decoder chip) and ZBUS Melody board, which uses it.
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No optionboards yet for Melody, only audio driver.
MPEG data types for audio.c
1997-10-16 23:57:56 +00:00
31ab81c6e4
Aignore interrupts if the device isn't open.
1997-10-16 16:41:18 +00:00
0d79fbe5c5
Don't test for unused methods.
1997-10-14 18:43:42 +00:00
3cdff9d435
GETPROPS does not indicate whether the device is currently in full-duplex
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mode. Reinstate GETFD to return this information.
1997-10-11 11:16:28 +00:00
4f2068ec29
Sanity check hi/lo water mark settings better.
1997-10-07 22:40:43 +00:00
ffcdaf144d
Move around splaudio() to (hopefully) get rid of some rare race conditions.
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Add a missing call to round_blocksize.
Add some MIDI stuff that will be used in the future.
1997-09-06 01:14:48 +00:00
d2a9d1970d
Don't deference a bad pointers if you try to open an audio device that's
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not configured.
1997-08-27 18:54:28 +00:00
955e1e9119
Make sure audio device starts in half-duplex mode and document the fact.
1997-08-26 19:03:55 +00:00
6616d47838
- Change audio_hw_if a little: set_param now sets the play and record modes
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at the same time instead by using two different calls. This enables
it to check more easily if the combined mode is all right.
- Improve the error checking in audio.c.
- Add a new audio property, AUDIO_PROP_INDEPENDENT, show if the
play and record settings are independent.
- Fix some buglets in audio.c.
1997-08-24 22:31:23 +00:00
332ad95e76
Change the MI audio driver so it attaches to the MD driver in the
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normal way. This requires adding a line to the config files to
get audio to work again.
1997-08-19 23:49:33 +00:00
e5b75f05d4
Make a slight change to when blocksize, hi- and lo-water marks are
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recalculated. The new semantics is more intuitive(?) and makes Doom
work :-)
1997-08-18 23:20:09 +00:00
34085fae66
Implement /dev/audioctl. It behaves much like /dev/sound, but only
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allows ioctl() and can be opened at any time.
1997-08-18 21:19:02 +00:00
8f096d087f
Implement delivery of SIGIO on changes to /dev/mixer.
1997-08-11 01:38:12 +00:00
9a770a177f
Make setting the audio block size sticky.
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Change the calculated block size to correspond to 50 ms of sound
(was 20 ms, it seems needlessly small).
1997-08-08 00:03:26 +00:00
3c6f8bc89e
Restructure a little to make sure AUDIO_FLUSH restarts the looping DMA.
1997-08-06 23:08:26 +00:00
aae99e192d
%x -> 0x%x
1997-08-06 07:39:59 +00:00
c392128002
Audio:
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* Make it possible to use software assisted encodings that expand the
sample size.
* Use 16 bits per sample when emulating mulaw coding on the SB.
* Prepare for SB16 without CT1745 mixer.
1997-08-04 09:29:51 +00:00
3bef8402d3
Implement FIONBIO in audio_ioctl.
1997-08-01 17:04:00 +00:00
658656bb99
Audio changes:
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- Change the way attach and open works to allow multiple audio
devices.
- Split the mulaw.c file into two to avoid dragging in mulaw
convertsion when they are not needed. Add 16 bit alaw/mulaw tables.
- Change the way audio properties are gotten.
- Recognize more versions os SoundBlaster.
1997-07-31 22:33:08 +00:00
a63034762b
Audio: Remove the machine dependant code I put in audio.c by mistake.
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This adds another method to audio_hw_if. Also remove a field from
audio_hw_if that was not read-only.
1997-07-28 20:56:05 +00:00
d5b1561c91
Temporary fix to make it compile on non-i386.
1997-07-28 09:28:04 +00:00
f6cd87f322
audio: Minor cleanup and enable looping DMA for PSS and PAS.
1997-07-28 01:31:50 +00:00
d58bc6796f
audio: Simplify handling of AUDIO_SETFD and committing of encoding mode.
1997-07-27 23:51:48 +00:00
63decd9438
Fix divide by 0 bug in audio driver.
1997-07-27 23:06:04 +00:00
9745684ebe
Changes to the sudio system:
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- It is now possible to handle devices that want "looping" DMA,
e.g. the SoundBlaster correctly. The WSS and SB drivers use this.
To do this several new methods were introduced in audio_hw_if.
- Different silence handling (forced by previous change).
- The audio driver can now be mmap()-ed, but due to problems in
the VM system only for writing for now.
- The OSS (Linux) audio emulation takes advantage of some of the
new features.
1997-07-27 01:16:32 +00:00
8727da130b
In the name of backwards compatibility AUDIO_ENCODING_LINEAR has been
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renamed AUDIO_ENCODING_SLINEAR and AUDIO_ENCODING_LINEAR reverts to the
NetBSD 1.2 sematics. A kernel with COMPAT_12 defined will accept
AUDIO_ENCODING_LINEAR and treat it as before, without COMPAT_12 it
will be rejected.
1997-07-15 07:46:04 +00:00
73ff4bd775
Allow more than one hardware driver to attach to the audio upper layer.
1997-05-27 23:24:56 +00:00
1fd29f4172
Make the audio default parameters into a globally accessible constant.
1997-05-20 12:51:43 +00:00
d7a82223f4
Change lowater calculation a little.
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Fix mixer setting bug and add some missing splaudio().
Set SB drq16 to 5 and don't pretend to be SB v1.0.
1997-05-17 23:26:33 +00:00
4b487c00bd
Clean up audio_silence_copyout().
1997-05-11 00:41:12 +00:00
c7be49441e
fix typo: LINEAR should have been ULINEAR
1997-05-10 19:01:53 +00:00
e63a553175
Change the interface between high and lowlevel audio drivers again:
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Set the encoding parameters slightly differently.
Remove the SW encoding/decodinf functions from this interface
and move them to the audio_parameter struct; this is both more efficient
and flexible.
1997-05-09 22:16:27 +00:00
c397fa8357
Return audio buffer size in audio_info_t with ioctl() AUDIO_GETINFO.
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Use the buffer size to implement one more OSS ioctl().
1997-05-07 19:24:25 +00:00
c4a52794f1
Convert to new orthogonal audio encoding scheme and implement
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some of the new encodings. The change to ioctl AUDIO_GETENC is
NOT backwards compatible.
1997-05-07 18:51:31 +00:00
269ccaa71b
Fix typo in last commit; from Thorsten Frueauf <frueauf@ira.uka.de>
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in PR/3566.
1997-05-01 12:27:10 +00:00
526ef2f618
Change the interface between the high and low level audio drivers
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so that all audio encoding parameters are set at once. This simplifies
the interface and make error checking easier.
1997-04-29 21:01:33 +00:00
231a4bfb1f
Remove bogus pointer cast.
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Accept FIONBIO ioctls.
1997-04-19 21:25:43 +00:00
2c6048e49f
Make sure to recalculate the block size after changing the
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sampling rate. Also, nuke the global variable audio_blocksize.
1997-03-20 16:13:55 +00:00
c1cc14fa25
Combine set_encoding and set_precision into a single set_format interface.
1997-03-20 06:48:48 +00:00
8b4878a6ba
Fill in silence-padded blocks so we don't get gaps. From PR 3357,
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by Lennart Augustsson.
1997-03-20 03:19:53 +00:00
b0c4e068d0
Modify audio_fill_silence() to take an encoding number rather than a softc*
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and mode.
1997-03-13 02:45:07 +00:00
ac3b8b13b7
Don't share the silence block between devices. Make silence filling work for
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more encodings, and make it device-independent. From Lennart Augustsson, in
PR kern/3305.
1997-03-13 02:19:32 +00:00
1c47a4325b
close 3079 from Jason Baker -- fixes a test in audio_poll
1997-01-18 04:02:58 +00:00
39379f9a46
Reset `sc_async' on device close.
1996-11-01 23:05:45 +00:00
aa8449a9ef
fix compile errors & warnings
1996-10-16 01:12:18 +00:00
thorpej