e622eac459
- 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
28 lines
688 B
Plaintext
28 lines
688 B
Plaintext
# $NetBSD: files.audio,v 1.12 2019/05/08 13:40:17 isaki Exp $
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define audiobus { }
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define midibus { }
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define midisyn
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# audio and midi devices, attaches to audio hardware driver
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#
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device audio {}: audiodev
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attach audio at audiobus
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device midi: audio
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attach midi at midibus
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attach spkr at audio with spkr_audio
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# console bell via audio device
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#
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define audiobell
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file dev/audio/alaw.c audio
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file dev/audio/linear.c audio
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file dev/audio/audio.c audio needs-flag
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file dev/audio/audiobell.c spkr_audio needs-flag
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file dev/audio/mulaw.c audio
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file dev/midi.c midi needs-flag
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file dev/midictl.c midisyn
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file dev/midisyn.c midisyn
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file dev/spkr_audio.c spkr_audio needs-flag
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