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History log of /src/sys/dev/ic/uda1341.c
RevisionDateAuthorComments
 1.2  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
 1.1  28-Jan-2012  nisimura branches: 1.1.4; 1.1.6; 1.1.52; 1.1.56;

Add UDA1341TS audio CODEC support. Code is written by
Paul Fleischer.
 1.1.56.3  04-May-2019  isaki Move dev/audio_if.h -> dev/audio/audio_if.h
 1.1.56.2  25-Apr-2019  isaki Adapt to audio2.
- The sample rate seems to be determined by peripherals so
move uda1341_formats[] structure from ic/uda1341.c to audio_mini2440.c.
- XXX Resetting the device in open() (and close()) might be harmful
but I don't know details about what does this reset do.
 1.1.56.1  21-Apr-2019  isaki Use C99 style struct initializer to audio_format.
 1.1.52.1  10-Jun-2019  christos Sync with HEAD
 1.1.6.2  17-Apr-2012  yamt sync with head
 1.1.6.1  28-Jan-2012  yamt file uda1341.c was added on branch yamt-pagecache on 2012-04-17 00:07:37 +0000
 1.1.4.2  18-Feb-2012  mrg merge to -current.
 1.1.4.1  28-Jan-2012  mrg file uda1341.c was added on branch jmcneill-usbmp on 2012-02-18 07:34:25 +0000

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