Commit Graph

14 Commits

Author SHA1 Message Date
augustss
9745684ebe Changes to the sudio system:
- 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
pk
e3680b0e26 config.new => config 1997-07-20 20:33:08 +00:00
augustss
8727da130b In the name of backwards compatibility AUDIO_ENCODING_LINEAR has been
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
augustss
604e6c4091 Add missing initialization. 1997-05-19 23:05:14 +00:00
augustss
0decef1b80 Fix recording source selection bug. 1997-05-19 17:29:12 +00:00
augustss
c397fa8357 Return audio buffer size in audio_info_t with ioctl() AUDIO_GETINFO.
Use the buffer size to implement one more OSS ioctl().
1997-05-07 19:24:25 +00:00
augustss
c4a52794f1 Convert to new orthogonal audio encoding scheme and implement
some of the new encodings.  The change to ioctl AUDIO_GETENC is
NOT backwards compatible.
1997-05-07 18:51:31 +00:00
augustss
91aba3ab34 Improve setting of record source. 1997-04-06 23:49:32 +00:00
augustss
32801cf383 * Move the Linux audio emulation into its own directory and rename it
OSS (aka VoxWare) audio emulation.
* Use the OSS audio emulation for Linux and FreeBSD.
* Add mixer emulation to the OSS emulator.
1997-04-04 15:35:54 +00:00
mycroft
b1a3eda88c Copy back the format we set in SNDCTL_DSP_SETFMT. 1997-03-20 16:11:29 +00:00
mycroft
41bbc3f5b6 SOUND_PCM_WRITE_CHANNELS -> SNDCTL_DSP_CHANNELS, to match current Linux code. 1997-03-20 04:21:31 +00:00
mycroft
eb41ccd5fe Emulate the SOUND_PCM_WRITE_CHANNELS ioctl. From PR 3356, by Lennart
Augustsson.  Also add hooks for mixer ioctls.
1997-03-19 05:12:13 +00:00
fvdl
990f0ce9b7 Add RCS Id. 1996-10-17 19:46:39 +00:00
mycroft
6bc0baa1ce Separate ioctl emulation by group. Add (minimal) audio emulation. 1996-03-08 04:55:59 +00:00