src/sys/dev/fb/vga.c, branch release/8.2.0

MFC: r197185

2010-03-31T15:49:10+00:00

Enable BIOS modes on amd64.

MFC: r205557, r205558, r205564, r205566, r205604, r205653

2010-03-31T15:45:11+00:00

Sync. pixel mode support for VESA and VGA frame buffers with HEAD.

- Map entire video memory again.  Although we do not use them all directly,
it seems VGA renderer may access unmapped memory region and cause kernel
panic.
- Fall back to VGA palette functions if VESA function failed and DAC is
still in 6-bit mode.  Although we have to check non-VGA compatibility bit
here, it seems there are too many broken VESA BIOSes out to rely on it.
- Be careful when we determine bytes per scan line information.  We compare
mode table data against minimum value.  If the mode table does not make
sense, we set the minimum in the mode info.
- Teach VGA framebuffer about 8-bit palette format for VESA.
- Add my copyright here.

MFC x86emu/x86bios emulator and make previously i386 only dpms and vesa

2010-03-02T01:56:55+00:00

framebuffer driver, etc. work on FreeBSD/amd64.

A significant amount of improvements were done by jkim@ during the recent
months to make vesa(4) work better, over the initial code import.  This
work is based on OpenBSD's x86emu implementation and contributed by
paradox  and swell.k at gmail com.

Hopefully I have stolen all their work to 8-STABLE :)

All bugs in this commit are mine, as usual.

Convert amd64 and i386 to share the atrtc device driver.

2008-04-14T08:00:00+00:00

Replace explicit calls to video methods with their respective variants

2007-12-29T23:26:59+00:00

implemented with macros. This patch improves code readability. Reasoning
behind vidd_* is a sort of "video discipline".

List of macros is supposed to be complete--all methods of video_switch
ought to have their respective macros from now on.

Functionally, this code should be no-op. My intention is to leave current
behaviour of touched code as is.

No objections:	rwatson
Silence on:	freebsd-current@
Approved by:	cognet

Fix -Wundef.

2005-12-04T02:12:43+00:00

Add a font width argument to vi_load_font_t, vi_save_font_t and vi_putm_t

2005-09-28T14:54:07+00:00

and do some preparations for handling 12x22 fonts (currently lots of code
implies and/or hardcodes a font width of 8 pixels). This will be required
on sparc64 which uses a default font size of 12x22 in order to add font
loading and saving support as well as to use a syscons(4)-supplied mouse
pointer image.
This API breakage is committed now so it can be MFC'ed in time for 6.0
and later on upcoming framebuffer drivers destined for use on sparc64
and which are expected to rely on using font loading internally and on
a syscons(4)-supplied mouse pointer image can be easily MFC'ed to
RELENG_6 rather than requiring a backport.

Tested on:	i386, sparc64, make universe
MFC after:	1 week

check copyin return values when loading pallete

2005-03-26T18:01:35+00:00

Noticed by:	Coverity Prevent analysis tool

Fixed compilation warnings with option VGA_NO_MODE_CHANGE.

2004-12-15T13:49:25+00:00

PR:		kern/71130

Converge towards i386. I originally resisted creating

2004-09-24T01:08:34+00:00

because it was mostly irrelevant - except for the silly BIOS_PADDRTOVADDR
etc macros.  Along the way of working around this, I missed a few things.

* Make syscons properly inherit the bios capslock/shiftlock/etc state like
  i386 does.  Note that we cannot inherit the bios key repeat rate because
  that requires a bios call (which is impossible for us).
* Give syscons the ability to beep on amd64.  Oops.

While here, make bios.c compile and add it to files.amd64.