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fc96443d15
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26 Commits

Author SHA1 Message Date
thorpej
fc96443d15 New callout mechanism with two major improvements over the old 
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
  resource allocation.
- Insertion and removal of callouts is constant time, important as
  this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.
 2000-03-23 07:01:25 +00:00
ad
ea0751f1aa Finish with fixing the SOFTCURSOR stuff. 2000-01-25 02:44:03 +00:00
ad
e75404417a Add and use pcdisplay_cursor_init(). Still a couple of nits with this, I 
will resolve when I can test properly.
 2000-01-05 16:14:35 +00:00
drochner
106e6868db fix off-by-one error in font table initialisation 
(mostly harmless because it is zero initialized in most cases anyway)
 1999-12-13 14:04:06 +00:00
drochner
162086b1cd do the screen switch asynchronously (via timeout(0)) if possible, 
this hopefully helps for the (very rare) display corruption reported
in PR kern/8628
 1999-12-06 18:54:50 +00:00
mycroft
d2b362b685 Only update the cursor state if it's enabled. 1999-11-03 15:55:27 +00:00
ad
51de3bc208 PCDISPLAY_SOFTCURSOR: remember state of cursor during full screen scroll. 1999-09-29 17:29:24 +00:00
ad
97253f4537 Software cursor is not enabled at boot time. Hardware cursor is. 1999-09-19 22:57:24 +00:00
ad
f96e055d70 - mc6845's cursor is disabled by punching bit 6 of cursor start register. 
- Add new option (PCDISPLAY_SOFTCURSOR) that provides a large, non-blinking
  cursor in software.
 1999-09-19 21:48:08 +00:00
drochner
2a614bc836 add support for 80x40 screens 1999-04-10 14:02:11 +00:00
drochner
00a4d0521a use defopted WSCONS_SUPPORT_PCVTFONTS, refuse to load pcvt fonts if this 
option is not given, suppress complaints in non-debug case
 1999-04-01 11:52:42 +00:00
drochner
b2c812d776 set "fontset" variables to 0 if no appropriate font was found for a 
freshly allocated screen, should fix panic if "vga_mapchar()" it
attempted later
 1999-03-22 18:24:23 +00:00
drochner
bd047d30a0 complete mapping table for pcvt fonts, make dual-font selection work 
as intended
 1999-02-20 18:27:53 +00:00
drochner
dbdaf91650 change the "mapchar" interface to return a "quality" or "match level" 
arguments which allows to find approximations for characters which are
not present in a font
 1999-02-12 11:25:23 +00:00
drochner
23cfea8327 -implement new wscons font handling with separate download and selection 
calls
-support use of 2 fonts simultanously; this costs the ability to
"highlight", ie to use the upper 8 colours
-define screen types "80x25bf" and "80x50bf" which use this ability
-add conditional code to deal with the weird mapping of pcvt's
supplemental fonts
 1999-01-13 16:48:58 +00:00
drochner
98e630dbe0 Allow to deallocate also the currently visible virtual screen (unless 
it is the console).
This requires vva_show_screen() to catch the case where it has no screen
to switch from, ie no need to save the current state.
 1999-01-09 15:29:26 +00:00
augustss
44df4dcc85 Add a wscons display type `unknown' that the generic VGA driver can 
return until someone fixes it for real.
 1998-12-30 13:54:03 +00:00
eeh
a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
drochner
3d545acb51 Overload the generic "copyrows" function by a private one which implents 
a "fast scroll" by setting the display start in memory.
(Only implemented for "scroll up" because this is more used. "scroll down"
is easy to add.)
This moves the semantics of "copyrows" to something like "moverows";
the contents of the new visible lines at the bottom is undefined.
The emulations can live without the original "copy" semantics.
 1998-07-24 16:20:14 +00:00
drochner
3f10af182d do the charcter mapping in a separate function 1998-06-26 21:05:20 +00:00
drochner
bf42a9e321 adapt to wscons changes, treat incoming characters always as ISO 
(ie, convert to IBM)
 1998-06-20 21:55:05 +00:00
drochner
96840772f5 reserve the VGA BIOS area (but don't worry if it fails) 1998-06-12 18:41:01 +00:00
drochner
b84dbbb37c Put definitions and subroutines needed for all PC display adapters 
(MGA/GCA and compatibles) into global headers / source files.
Let the VGA driver use them.
 1998-05-28 16:48:40 +00:00
drochner
95bdb660ed Simple screen attribute handling for wscons. 
The graphics device driver passes a "default attribute" for normal text
output to the wscons framework. If the emulation module needs more
attributes (for different "renditions") it can allocate them via a
callback.
For now, only the "sun" emulation makes use of it.
 1998-05-14 20:49:55 +00:00
drochner
0391896c27 Avoid namespace pollution. 1998-04-07 16:35:42 +00:00
drochner
3a43fe7109 initial import of VGA driver backend for use with the new wscons code 1998-03-22 15:11:49 +00:00