wsfb raster console driver added to current

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

Hi all!

I just added genfb(4) driver for mac68k, which provides modern
raster console with wsfb API. ANSI colors as well as graphic-base
applications such as Xorg 1.20 and mlterm-fb work fine like on
other ports.

That driver is now provided in separate kernel config files,
WSFB and WSFBSBC, that correspond to GENERIC and GENERICSBC,
respectively.

Note that for 8 depth (256 color) mode, graphic-base application
requires colormap callback, which is currently supported for some
internal graphic adapters, and only tested on Civic (Quadra AV).
I'm glad if you can tell whether it works or not on your machines.

Thanks,
rin

-------- Forwarded Message --------
Subject: CVS commit: src
Date: Fri, 26 Jul 2019 10:48:45 +0000
From: Rin Okuyama <rin%netbsd.org@localhost>
Reply-To: source-changes-d%NetBSD.org@localhost
To: source-changes-full%NetBSD.org@localhost

Module Name:	src
Committed By:	rin
Date:		Fri Jul 26 10:48:45 UTC 2019

Modified Files:
	src/share/man/man4: genfb.4
	src/sys/arch/mac68k/conf: files.mac68k
	src/sys/arch/mac68k/dev: grf_subr.c grfvar.h maccons.c
	src/sys/arch/mac68k/mac68k: conf.c machdep.c
	src/sys/arch/mac68k/obio: grf_obio.c
	src/sys/dev/rasops: rasops.c
	src/sys/dev/wsfb: files.wsfb
Added Files:
	src/sys/arch/mac68k/conf: WSFB WSFB.common WSFBSBC
	src/sys/arch/mac68k/dev: genfb_grfbus.c
	src/sys/arch/mac68k/obio: grf_obioreg.h

Log Message:
Add genfb(4) driver for mac68k grfbus.
1, 2, 4, 8, 15, and 32 color-depths are supported.

ANSI colors on console are functional for depth >= 4.

Graphic applications based on wsfb API should work, provided
they can correctly handle fbi_fboffset and your color depth.

wsfb driver of Xorg 1.20 and mlterm-fb (framebuffer version of
x11/mlterm) work fine for depth == 1 || depth >= 8.

For depth == 8 (256 colors), graphic applications require
colormap callback, which is currently supported for some
internal graphic adapters, and only Civic (found on Quadra
AV series) was tested. Register definition and its usage are
taken from Linux. You can easily support other adapters if
Linux supports that.

Have fun, and any problem reports are welcomed!


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/share/man/man4/genfb.4
cvs rdiff -u -r0 -r1.1 src/sys/arch/mac68k/conf/WSFB \
    src/sys/arch/mac68k/conf/WSFB.common src/sys/arch/mac68k/conf/WSFBSBC
cvs rdiff -u -r1.128 -r1.129 src/sys/arch/mac68k/conf/files.mac68k
cvs rdiff -u -r0 -r1.1 src/sys/arch/mac68k/dev/genfb_grfbus.c
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/mac68k/dev/grf_subr.c
cvs rdiff -u -r1.31 -r1.32 src/sys/arch/mac68k/dev/grfvar.h
cvs rdiff -u -r1.9 -r1.10 src/sys/arch/mac68k/dev/maccons.c
cvs rdiff -u -r1.63 -r1.64 src/sys/arch/mac68k/mac68k/conf.c
cvs rdiff -u -r1.352 -r1.353 src/sys/arch/mac68k/mac68k/machdep.c
cvs rdiff -u -r1.58 -r1.59 src/sys/arch/mac68k/obio/grf_obio.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/mac68k/obio/grf_obioreg.h
cvs rdiff -u -r1.90 -r1.91 src/sys/dev/rasops/rasops.c
cvs rdiff -u -r1.10 -r1.11 src/sys/dev/wsfb/files.wsfb

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.