o Implement SPDIF selection/monitoring function.
Now, say, playback to both analog output and SPDIF is possible.
o Implement support of AUX input, MIC preamp and MIC recording gain.
o L-R selection of record source doesn't seem to work on cmpci.
Therefore, the *.swap mixer functions are and deleted.
o Following SB mixer registers don't exist on cmpci, and they are removed.
input gain, output gain, AGC, equalization (bass, treble)
o Other mixer changes, including
inputs.XXX.mute -> (deleted)
outputs.XXX.mute -> inputs.XXX.mute
inputs.pc_speaker -> inputs.speaker
spdif.* -> reorganized to spdif.input.*, spdif.output.*
o Current status:
I have tested these and confirmed to work fine.
- Output and recording from Line-in, AUX, CD and MIC analog inputs,
- Output and recording from FM synthesizer,
- Output from PC speaker input,
- Output wave playback.
- SPDIF (44.1kHz) input selection (#1, #2 (6ch version only),
wave to spdin), phase selection, monitoring and recording,
- SPDIF (44.1kHz) playback, through (SPDIF in to SPDIF out)
and monitoring.
I haven't tested these but may work.
- SPDIF 48kHz input and output,
- Full-duplex operation,
- Recording wave output.
I don't think these are working.
- Legacy (wave + FM synthesizer) to SPDIF output (and the monitoring),
- Exchanging front and rear outputs,
- Surround.
These are not implemented.
- 4ch / 6ch support,
- Joystick port support.
- Add mpu at cmpci attachment.
- Fix panic during attach on alpha.
- Change register of SPDIF input phase (but undocumented, either).
- Change code for mixer initialization.
- Return 1, not 0, when an interrupt is processed.
More changes to the mixer are pending....
