freebsd-dev/sys/dev/sound
Pyun YongHyeon 7a7386a3e2 Device driver for onboard CS4231 audio controller which is found
on UltraSPARC workstations. The driver is based on OpenBSD's SBus
cs4231 driver and heavily modified to incorporate into sound(4)
infrastructure. Due to the lack of APCDMA documentation, the DMA
code of SBus cs4231 came from OpenBSD's driver.
The driver runs without Giant lock and supports both SBus and EBus
based CS4231 audio controller. Special thanks to marius for providing
feedbacks during the driver writing. His feedback made it possible
to write hiccup free playback code under high system loads.

Approved by:	jake (mentor)
Reviewed by:	marius (initial version)
Tested by:	marius, kwm, Julian C. Dunn(jdunn AT opentrend DOT net)
2004-10-25 10:29:57 +00:00
..
isa Re-add an acpi attachment for the legacy probe that was inadvertently 2004-10-15 05:13:25 +00:00
pci Limit DMA address space to 1GB since the trident audio cards can't 2004-10-13 06:04:01 +00:00
pcm Plug possible memory leak in sound DMA buffer handling. It also 2004-10-15 03:50:04 +00:00
sbus Device driver for onboard CS4231 audio controller which is found 2004-10-25 10:29:57 +00:00
usb
chip.h
driver.c