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When not running on serial console, the PROM will pick the ``internal''
graphics device, and if it does not exist, the DIO device with the lowest
select code, and will resort to SGC devices if no internal or DIO device
was found.
However, the current logic would search for a certain frame buffer type first,
then for its best hardware location, following the order they are listed
in conf.c.
By replacing gazillions of almost-exactly-duplicated frame buffer code with
one single instance, which is device type-agnostic, we can match the PROM
(and the bootblocks) logic again. Plus this saves a few KB of code!
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This means we are no longer aborting the console scans even if the final
console has been found, but on the other hand makes some logic simpler;
plus it will be necessary for upcoming scode vs device loop order reversal.
No user-visible change.
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letting the bus walkers do this for it. This is necessary since apci does
not use the bus walkers, now that we do not force console probes to stop
when apci claims console.
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No functional change.
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CN_INTERNAL.
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Features:
- coloured kernel messages
- color support in console (use TERM=wsvt25)
- pretty Gallant wsfont, rather than the acceptable or ugly (depending upon
the frame buffer) ROM font
- colormap ioctl support for Gatorbox and Topcat; DaVinci and Renaissance
not done due to lack of hardware and/or documentation
- even more code factorization
tested on hyperion, and 4/6/8bpp catseye/topcat/kathmandu hardware, by
millert@ and I
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and collateral changes.
Because this driver requires us_dma (and as such, vm services) to work, it
can not be selected in consinit(). Instead, add a hook to the arm
cpu_startup() which will, on zaurus, switch console from serial (selected
in consinit()) to lcd.
This also makes the zaurus-specific early pxa2x0_clkman() substitute code
cleaner.
While there, move boot -c handling later, after the glass console is set up.
Tested by drahn@ and uwe@
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the video registers size, this value can easily be computed from the standard
fb registers.
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Main features:
- MI hil drivers, allowing live plug/unplug of devices, and the keyboard
does not need to be at id 1 anymore.
- SGC bus support on 4xx models. SGC frame buffers are supported too, but
not as console, though you can use them as a regular glass terminal if
you run a getty on ttyC0. Currently not compiled-in, awaiting for an sti(4)
fix to be commited.
- HP-UX compatibility interfaces are removed. grfinfo and hilinfo are removed.
X11 support is currently broken by these changes; X.org X11R6 support will
be available very soon.
Tested on hyperion and 4 different flavours of catseye/topcat/kathmandu; other,
older frame buffers (davinci, gatorbox and renaissance) could not been tested
but should work; please report any regression.
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