- change midi_attach() to omit the 'parent' arg (there are
only two callers of this and it is not used)
- change midisyn_attach() to midisyn_init(), so not needing a midi_softc,
and fix the midi_pcppi driver to set hw_if and hw_hdl directly in
its midi_softc before calling midi_attach()
- add a device_t to opl_softc structure, change opl drivers to store
the device 'self' in opl_softc and fix opl_attach() to use this
opl_softc->dev field directly rather than a field in an otherwise
unused midi_softc
- remove unnecessary midi_softc from opl and cms drivers (child device
provides that)
reviewed by mrg
the original ad-audiomp branch notes:
Add MP locking to the audio drivers.
Making the audio drivers MP safe is necessary before efforts
can be made to make the VM system MP safe.
The are two locks per device instance, an ISR lock and
a character device lock. The ISR lock replaces calls to
splaudio()/splx(), and will be held across calls to device
methods which were called at splaudio() before (e.g.
trigger_output). The character device lock is held across
calls to nearly all of the methods, excluding some only
used for initialization, e.g. get_locks.
Welcome to 5.99.57.
Merge from chap-midi branch, after
~month for review
Comments by thorpej@ drochner@ and Alexandre Ratchov
Incorporated: points by thorpej@ drochner@; preliminary support for
a stats-collecting ioctl suggested by martin@ from comments by A.R.
PR kern/32441 kern/32442 kern/32567 kern/32588 kern/32694 kern/33590
kern/33614 and one instance of kern/32651
ok martin@
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.
Bump the kernel rev up to 1.6V
* Improve the midisyn layer a little.
* Add a driver for the Yamaha OPL[23] FM synths.
The opl driver is not finished yet; it sounds pretty awful.
For some strange reason I cannot get any FM sound from my SB64 cards,
but a regular SB16 works fine.
mrg