XXX: sparc/dev/cgthree.c in Attic had an attachment for cgthree* at obio?
XXX: and sparc/conf/files.sparc still has an entry of nonexistent (or not yet)
XXX: sparc/dev/cgthree_obio.c. Is there any sun4m machine which requires it?
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.
Suggested by mrg@ and martin@, and tested on SS1+ and SS20.
with possible orphaned this le at sbus one on old PROMs not using
homegrown struct sbusdev but common cfdriver_t and device_t structures.
Now nothing refers struct sbusdev registered by sbus_establish().
Tested an SBus le/esp combo card on SS1+.
not device_t parent even if sbus is grandparent of the device,
otherwise (*sd_reset)() callbacks will be called with an wrong device_t.
Even in such case, sbus_establish() looks for an sbus though device tree.
XXX: (*sd_reset)() isn't called anyway, and these stuff seems really bogus.
registration of (*sd_reset)(device_t) in struct sbusdev via sbus_establish().
XXX: (*sd_reset)() in struct sbusdev seems called from only sbusreset(),
XXX: but there is no function which calls sbusreset()???
- add support for screen blanking via /dev/fb*
- reimplement colour map ioctl()s for /dev/fb*
- implement mmap and ioctl for wscons, map 8 or 24bit framebuffer depending
on hardware
With this X works with the wsfb driver in 24bit.
TODO:
- fix wsfb to use the right pixel format for S24
- implement wsdisplay colour map ioctl()s
- add hardware cursor support for wscons and /dev/fb*
- attach a wsdisplay
- make it work with an S24
- accelerate scrolling and character drawing
This isn't quite finished yet, it works fine as a console but most things
X will need are not functional right now.
not finished the device_t/softc split for the SBus attachment
because I don't have an SBus gem(4) to test with.
Convert from legacy shutdownhooks to a PMF shutdown hook. Add PMF
suspend/resume handlers.
Factor a detachment hook out of gem_attach(). During device
attachment, track which resources are reserved in sc_attach_state,
and release only those resources during detachment.
Tested on gem0 and gem1 at pci1 on a Sun Fire V120.
several ages:
- convert to device_t
- add support for programming colour depth and such, use it to reset the
console to something usable when we enter ddb or exit X etc.
- basic power management
TODO:
- convert to PMF
- get rid of rconsole code so we don't need to map the framebuffer
- power down the whole DAC when not in use
