lcd driver can be configured with or without wsdisplay.
With wsdisplay, it supports text mode using rasops in 8bpp or 16bpp.
Without it, users only can mmap(2) the framebuffer.
XXX: 1-, 2-, 4-, or 24- bpp mode is not supported yet.
XXX: S3C24x0's LCD controller can have virtual screen which is bigger
than actual LCD panel. Our wsdisplay framework doesn't have
features to utilize it.
interrupts; some boards actually use those GPIO pins as external
interrupt sources.
Instead, assign soft interrupt bits to on-chip sources which are
not used by the IXP425 port.
up attached at the same time, and so that they can both prevent the forthcoming
iomdkbc(4) attaching to the keyboard slot.
[ file missed in last commit ]
obmitted resulting in a compilation failure in the autobuilds.
It effectively removes the now redundant reference to "beep.h" and removes
an associated prototype that wasn't used.
unknown problem with dcache_inv_range by using a wbinv for now
(similarly for ARM10).
When setting the ARM9 system control register, use the computed
cpuctrlmask value (not 0xffffffff) so that the clocking-mode bits are
not reset to FastBus mode (which isn't very fast).
Just before removing the vector page mapping, switch to the kernel
pmap's L1/vector page mapping so as not to pull the rug out from
under ourselves.
To prevent the stale L1/vector page mapping from being restored by
cpu_switch, replace the relevant fields of the dying process' pcb
with those of lwp0's pcb.
Remove the vestigal sysbeep device and replace it with the same kind of
mechanism that pckbd(4) uses to find the bell, which is just as ugly, but
more standard. Adapt beep(4) to the new world (though I'm not sure it
deserves to live).
8-bit VIDC audio. Both Richard Earnshaw and I had guessed that a set
bit was positive (the same as normal mu-law), but the AudioWorks
manual, and Sound_SoundLog on RISC OS, seem to disagree. Change
MULAW_TO_VIDC to match Sound_SoundLog, since the latter is probably
definitive.
process context ('reaper').
From within the exiting process context:
* deactivate pmap and free vmspace while we can still block
* introduce MD cpu_lwp_free() - this cleans all MD-specific context (such
as FPU state), and is the last potentially blocking operation;
all of cpu_wait(), and most of cpu_exit(), is now folded into cpu_lwp_free()
* process is now immediatelly marked as zombie and made available for pickup
by parent; the remaining last lwp continues the exit as fully detached
* MI (rather than MD) code bumps uvmexp.swtch, cpu_exit() is now same
for both 'process' and 'lwp' exit
uvm_lwp_exit() is modified to never block; the u-area memory is now
always just linked to the list of available u-areas. Introduce (blocking)
uvm_uarea_drain(), which is called to release the excessive u-area memory;
this is called by parent within wait4(), or by pagedaemon on memory shortage.
uvm_uarea_free() is now private function within uvm_glue.c.
MD process/lwp exit code now always calls lwp_exit2() immediatelly after
switching away from the exiting lwp.
g/c now unneeded routines and variables, including the reaper kernel thread
acccesses with addresses shifted by the amount specified in the cookie.
Also make the inclusion of the wscons file the resposibility of whoever
includes files.iomd. (found while attempting to checking riscstation
support into evbarm)
is naughty even if it does work), find out the complete list of physical pages
we'll have to DMA from in vidcaudio_trigger_output() and save it for use by
the interrupt handler.
had ever worked, but if it had, it had bit-rotted so far that it
almost all needed replacing. The new version support both 8-bit sound
on the VIDC20 and 16-bit sound on the ARM7500 and ARM7500FE.
sysbeep() support has been lost, but I'm not sure whether that belongs
here or in audio(4) anyway. Support for 16-bit sound on the VIDC20
isn't present because I don't have the hardware to test it. Donations
welcome!
