opl(4) [netbsd man page]
OPL(4) BSD Kernel Interfaces Manual OPL(4) NAME
opl -- Yamaha OPL2 and OPL3 FM MIDI synthesizer driver SYNOPSIS
opl* at cmpci? flags 1 opl* at eso? opl* at ess? opl* at fms? opl0 at isa? port 0x388 opl* at sb? opl* at sv? opl* at wss? opl* at yds? opl* at ym? midi* at opl? DESCRIPTION
The opl driver provides support for the Yamaha OPL2 (YM3812) and OPL3 (YMF262) chips. The chips are FM synthesizers and are capable of pro- ducing a wide range of sounds. Access to the device is through the MIDI driver. The opl driver usually attaches to a sound card, but it can also sit directly on the ISA bus. If ``flags 1'' is specified, the opl driver handles left and right channels of OPL3 swapped. Use this flag if your device has such problem. SEE ALSO
cmpci(4), eso(4), ess(4), fms(4), isa(4), midi(4), sb(4), sv(4), wss(4), yds(4), ym(4) HISTORY
The opl device driver appeared in NetBSD 1.4. BUGS
The OPL3 chip is operated in OPL2 mode despite being more capable. BSD
January 3, 2009 BSD
Check Out this Related Man Page
CMPCI(4) BSD Kernel Interfaces Manual CMPCI(4) NAME
cmpci -- C-Media CMI8x38 audio device driver SYNOPSIS
cmpci* at pci? dev ? function ? audio* at audiobus? mpu* at cmpci? opl* at cmpci? flags 1 DESCRIPTION
The cmpci device driver supports C-Media CMI8x38 based sound cards. The device has SPDIF input/output interfaces, 16bit CODEC with analog mixer, OPL3 FM Synthesizer, and MPU401 compatible MIDI I/O port inter- face. MIXER DEVICE
The mixer device of cmpci driver can be accessed via mixerctl(1) command. The complex structure is analyzed as follows. SPDIF in ---------------------- #1(coax)->|spdin1 | R ----------------------- #2(opt)-->|spdin2 spdif.input |--*->--|spdin spdif.output |--> SPDIF -->|spdout | | -->|playback | output | ---------------------- | | ----------------------- --------------------<------+-* ---------<-------------------+-+---------------------------------- | ------------------------ | | ----------------------- | -->|legacy spdif.output. |--+-*-->|spdout | | -->|wave playback | ----->|spdin spdif.monitor |---- | | ------------------------ NC-|off | | | ---------<-- spdif ----------------------- | | -------+------- dac ------------ ----------------- v | wave -->|playback.mode|---->|inputs.dac|-*->|inputs.dac.mute|->----- | playback --------------- ------------ R ----------------- | + | | ----------------- --------------------- |mix| | FM synthesizer -->|inputs.fmsynth |--*->|inputs.fmsynth.mute|-->----- | ----------------- R --------------------- *->-- CD ---------------------- --------------------------- v LINE-IN ->|inputs.{cd,line,aux}|-*>|inputs.{cd,line,aux}.mute|->----- AUX ---------------------- R --------------------------- | | ------------------ | | PC-SPK -->| inputs.speaker |----------------------------------->| + | ------------------ | | ------------------- ------------ ----------------- |mix| MIC --*-->|inputs.mic.preamp|->|inputs.mic|->|inputs.mic.mute|->| | | ------------------- ------------ ----------------- ----- | ------------ ----------------- | --->|record.mic|-->| | v ------------ | record.source |-->to ----------- *R-->| (select, mix) | recording |outputs.*|--> ----------------- ----------- SPK (front) Note the 2nd SPDIF input exists only on CMI8738/PCI-6ch versions. MIXER EXAMPLES
Here are examples about wave playback and SPDIF input/output ports. Playback to speaker, SPDIF input to SPDIF output mixerctl -w playback.mode=dac spdif.output=spdin spdif.monitor=off Playback to SPDIF output, SPDIF input to speaker mixerctl -w playback.mode=spdif spdif.output=playback spdif.output.playback=wave spdif.monitor=spdin SPDIF input to both SPDIF output and speaker mixerctl -w spdif.output=spdin spdif.monitor=spdin Playback to both SPDIF output and speaker mixerctl -w playback.mode=spdif spdif.output=playback spdif.output.playback=wave spdif.monitor=spdout Mix playback and SPDIF input to speaker mixerctl -w playback.mode=dac spdif.monitor=spdin SEE ALSO
mixerctl(1), audio(4), midi(4), mpu(4), opl(4), pci(4) HISTORY
The cmpci device driver appeared in NetBSD 1.5. BUGS
4ch/6ch playback is not yet available. Joystick port is not supported. spdif.output.playback=legacy does not seem to work properly. BSD
June 22, 2005 BSD