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ASC/EASC audio device
Greetings,
Please see the diff at: ftp://ftp.netbsd.org/pub/NetBSD/misc/nat/asc-audio.diff
it sould be applied via patch within the sys/arch directory.
It allows the Enhanced Apple Sound Chip (easc) to be used as an audio device.
The asc0 bell driver would not attach to the easc as it does not support wave
table mode.
With this driver a wsbell is provided for WSFB* kernels
Currently recording does not work.
This should also work for the asc as well but I don't have the hardware to
test so community feedback would be helpful.
There are currently to compile time options (for which one will be chosen
pending your feedback) in ascaud.c USE_INTRS.
If USE_INTRS is set to 1 the default is to use interrupts to keep the devices
sound buffers full.
If USE_INTRS is set to 0 the sound buffers are kept full via scheduling a
callout.
Please let me know (I'm not subscrbed to the list) if this works on machines
with the asc as well and what setting of USE_INTRS yields the best result.
Best regards,
Nat
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