Only install headers which are actually used by our userland. This
saves about 2.2MB under /usr/include/dev/. Discussed on tech-kern@
recently.

I HOPE to get the list right. The headers I left in are ones
used for MI tools and those whose usage I discovered by grep over tree sources.
Feel free to put needed includes back in if you encounter anything which
should not be removed from lists.

branches: 1.2.2; 1.2.14;
Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.1.10;
Rework the way kernel include files are installed. In the new method,
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.

s/depreciated/deprecated/g

branches: 1.1.2; 1.1.8; 1.1.234; 1.1.236;
Indicate that rcons is a dead end and that doing something more wsconsish is
recommended.

merge ktrace-lwp.

nuke trailing whitespace

branches: 1.12.8; 1.12.10;
Undo previous as it broke things.

There are some scattered implicit RASTERCONSOLE dependencies,
so there should be a better way.

defflag RASTERCONSOLE.

branches: 1.10.16;
- convert usage of "defopt" to "defflag" where the relevant option does
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups

- replace "defopt" with "defparam" for options which must take a value,
as config(8) will warn for value-less defparam options
- minor whitespace/formatting cleanup
- consolidate opt_tcp_recvspace.h and opt_tcp_sendspace.h into opt_tcp_space.h

Stop wscons from conflicting with rcons.

branches: 1.7.6; 1.7.8; 1.7.10;
Round out our options with 4bpp framebuffer support, conditional
on RCONS_4BPP.

branches: 1.6.2; 1.6.8;
The options actually used are RASTERCONSOLE_{FG,BG}COL, not
RASTERCONS_{FG,BG}COL. defopt the rigth ones.

Add missing RCONS_2BPP and RCONS_16BPP options for compatibility with code
that has not yet changed over to 'rasops'.

Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.3.4;
defopt RCONS_2BPP and RCONS_16BPP
add support for 16bpp framebuffers as found on color nexten.

include raster_op.c and raster_text.c if 'raster' is defined, as well
as if 'rasterconsole' is defined. Alpha uses 'raster' to pull in the
raster text and operation code, but doesn't use this console emulator,
etc.

Move RCONSOLE files here and rename option to RASTERCONSOLE.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.7.26;
merge ktrace-lwp.

branches: 1.6.16;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.5.24;
fix 16BPP support (for next68k), from Timm Wetzel.

branches: 1.4.8; 1.4.18;
add 2bpp support, for sake of NeXT monochrome displays, from
matt debergalis <deberg@mit.edu> KB1CTH per PR kern/6741 and kern/6786,
minimally corrected

since 'long's in this code are meant to be exactly 32-bits wide, use
'int32_t's instead, so that this code is usable on the alpha.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

ANSIfy the prototypes

branches: 1.18.12; 1.18.16;
Revert bcopy -> memcpy change inside #ifdef BCOPY_FASTER block.

bcopy -> memcpy

bzero -> memset

branches: 1.15.74; 1.15.84; 1.15.90;
merge ktrace-lwp.

nuke trailing whitespace

de-__P

branches: 1.12.8; 1.12.10;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.11.16;
add RCSIDs

branches: 1.10.2; 1.10.4;
fix 16BPP support (for next68k), from Timm Wetzel.

branches: 1.9.4;
Remove register declarations.

Round out our options with 4bpp framebuffer support, conditional
on RCONS_4BPP.

branches: 1.7.8; 1.7.14;
defopt RCONS_2BPP and RCONS_16BPP
add support for 16bpp framebuffers as found on color nexten.

add 2bpp support, for sake of NeXT monochrome displays, from
matt debergalis <deberg@mit.edu> KB1CTH per PR kern/6741 and kern/6786,
minimally corrected

Replace a use of << with the LSOP macro, to fix a specific problem on
little-endian machines. PR #6390, Ben Harris.

- add and fix prototypes and warnings.
- remove nested comment in header file.

Make it work on little-endian monochrome buffers; per Ted.

since 'long's in this code are meant to be exactly 32-bits wide, use
'int32_t's instead, so that this code is usable on the alpha.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

ANSIfy the prototypes

branches: 1.9.76; 1.9.80;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.8.26;
merge ktrace-lwp.

branches: 1.7.16;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.6.16;
don't need <sys/types.h> when including <sys/param.h>

add RCSIDs

branches: 1.4.6; 1.4.8;
Remove register declarations.

branches: 1.3.30;
since 'long's in this code are meant to be exactly 32-bits wide, use
'int32_t's instead, so that this code is usable on the alpha.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

merge ktrace-lwp.

make this compile after Wcast-qual

de-__P

branches: 1.13.8; 1.13.10;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.12.28;
Use a default attribute to restore the display mode to original settings.
Also, pass in WSATTR_COLORS at all times when allocating screen attributes
since without it we cannot even get black-on-white from rasops(9).

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.

Split off tty initialization in rcons_init() into a separate routine
and get rid of `fbconstty'.

branches: 1.9.2;
Change the way the default foreground and background colors are chosen:
require the front-end to initialize rc_deffgcolor and rc_defbgcolor (both
new members), and override these only if RASTERCONSOLE_{FG,BG}COL are
set in the kernel configuration file.

- Setting initial position of cursor is up to caller.
- Set cursor position properly for SPARC. From Juergen Hannken-Illjes.

Fix broken prototype.

Add arg to rcons_init() that when set causes screen to be cleared.

Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.4.26;
- add and fix prototypes and warnings.
- remove nested comment in header file.

Remove `rc_font_ascent' from structure.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.21.18; 1.21.26; 1.21.32;
- Factor out too many copies of the same bit of tty code.
- Fix another tty signalling/wakeup problem.

branches: 1.20.2;
Initialise the callbacks for tty.t_rstrt_ch in ttymalloc
as all drivers but Sun/SPARC's kd.c use the same arguments.
Separate callout_reset into callout_schedule and the initial
callout_setfunc using that.

branches: 1.19.6; 1.19.8; 1.19.12;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.18.2; 1.18.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.17.26;
merge ktrace-lwp.

branches: 1.16.4;
nuke trailing whitespace

de-__P

branches: 1.14.8; 1.14.10;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.13.16;
add RCSIDs

branches: 1.12.6; 1.12.8;
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.

Split off tty initialization in rcons_init() into a separate routine
and get rid of `fbconstty'.

branches: 1.10.2;
- Setting initial position of cursor is up to caller.
- Set cursor position properly for SPARC. From Juergen Hannken-Illjes.

Add arg to rcons_init() that when set causes screen to be cleared.

Don't clear screen upon startup unless we're running on a pmax (remedies
quirky behaviour of px boards). Shuffle come code in rcons_init_ops() in
order to be more clear.

Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.6.24;
backout kprintf changes

printf -> kprintf, sprintf -> ksprintf

- add and fix prototypes and warnings.
- remove nested comment in header file.

Must change `u_long' to `u_int32_t' as Jason pointed out.

Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.16.72; 1.16.82; 1.16.88;
avoid checking if an unsigned number is less than 0. fixes PR 29948.

branches: 1.15.2;
merge ktrace-lwp.

branches: 1.14.2;
make this compile after Wcast-qual

branches: 1.13.2;
nuke trailing whitespace

branches: 1.12.8; 1.12.10;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.11.6;
alloc_attr -> allocattr

Approved by Matthias Drochner.

branches: 1.10.8;
don't need <sys/types.h> when including <sys/param.h>

add RCSIDs

Give initiali[sz]e all the "i"s it deserves.

branches: 1.7.6; 1.7.8; 1.7.10;
Use a default attribute to restore the display mode to original settings.
Also, pass in WSATTR_COLORS at all times when allocating screen attributes
since without it we cannot even get black-on-white from rasops(9).

branches: 1.6.2;
Change the way the default foreground and background colors are chosen:
require the front-end to initialize rc_deffgcolor and rc_defbgcolor (both
new members), and override these only if RASTERCONSOLE_{FG,BG}COL are
set in the kernel configuration file.

Don't clear screen upon startup unless we're running on a pmax (remedies
quirky behaviour of px boards). Shuffle come code in rcons_init_ops() in
order to be more clear.

Let `mapchar' in operations set decide if characters (c > 127) are printable.

Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.2.28;
Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.

rcons (Raster CONSole) brought over here from the sparc area.
sparc device dependencies have been removed, as well as all references
to `struct fbdevice's. Clients need to #include <dev/rcons/rcons.h>.

This file is superceded by rcons.h.

Many enchancements to rcons to support ANSI color and all attributes
properly. All output now performed using a 'struct wsdisplay_emulops'.

branches: 1.1.28;
Move font defs back into machine-dependent area (per Jonathan Stone).
Integrate patches from der Mouse (8-bit cleanliness, FULLSCREEN option,
SMALLFONT option).
The (MD) caller of rcons_init() is now responsible for initialising `rc_font'.