Home | History | Annotate | Download | only in dev
History log of /src/sys/arch/usermode/dev/vaudio.c
RevisionDateAuthorComments
 1.5  08-May-2019  isaki Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
 1.4  26-Mar-2014  christos branches: 1.4.30; 1.4.32;
fix sprintf
 1.3  15-Jan-2012  jmcneill branches: 1.3.4; 1.3.6; 1.3.10; 1.3.14;
close file descriptors at shutdown
 1.2  26-Dec-2011  jmcneill mark vaudio callout and softint handler as mpsafe
 1.1  26-Dec-2011  jmcneill add vaudio(4) audio device driver
 1.3.14.1  18-May-2014  rmind sync with head
 1.3.10.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.3.6.3  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.3.6.2  17-Apr-2012  yamt sync with head
 1.3.6.1  15-Jan-2012  yamt file vaudio.c was added on branch yamt-pagecache on 2012-04-17 00:06:59 +0000
 1.3.4.2  18-Feb-2012  mrg merge to -current.
 1.3.4.1  15-Jan-2012  mrg file vaudio.c was added on branch jmcneill-usbmp on 2012-02-18 07:33:23 +0000
 1.4.32.3  04-May-2019  isaki Move dev/audio_if.h -> dev/audio/audio_if.h
 1.4.32.2  27-Apr-2019  isaki Adapt to audio2.
 1.4.32.1  21-Apr-2019  isaki Use C99 style struct initializer to audio_format.
 1.4.30.1  10-Jun-2019  christos Sync with HEAD

RSS XML Feed