MFC r327444, r327449, r327454

r327444:
vt(4): add support for configurable console palette

Introduce new set of loader tunables kern.vt.color.N.rgb, where N is a
number from 0 to 15. The value is either comma-separated list decimal
numbers ranging from 0 to 255 that represent values of red, green, and
blue components respectively (i.e. "128,128,128") or 6-digit hex triplet
commonly used to represent colors in HTML or xterm settings (i.e. #808080)

Each tunable overrides one of the 16 hardcoded palette codes and can be set
in loader.conf(5)

Reviewed by:	bcr(docs), jilles, manu, ray
Differential Revision:	https://reviews.freebsd.org/D13645

r327449:
Unbreak build broken by r327444

During review iterations function signature has changed in definition
but not in actual call. Fix call to match the definition.

Reported by:	Herbert J. Skuhra
Pointyhat to: gonzo

r327454:
Fix GCC build broken by r32744

Indicate in function declaration that vt_palette_init does not take any arguments

1 files changed, 17 insertions, 1 deletions

diff --git a/share/man/man4/vt.4 b/share/man/man4/vt.4
index 29246b7..e4967cd 100644
--- a/share/man/man4/vt.4
+++ b/share/man/man4/vt.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 19, 2016
+.Dd December 28, 2017
 .Dt "VT" 4
 .Os
 .Sh NAME
@@ -45,6 +45,7 @@ In
 .Xr loader.conf 5 :
 .Cd hw.vga.textmode=1
 .Cd kern.vty=vt
+.Cd kern.vt.color.<colornum>.rgb="<colorspec>"
 .Cd kern.vt.fb.default_mode="<X>x<Y>"
 .Cd kern.vt.fb.modes.<connector>="<X>x<Y>"
 .Pp
@@ -205,6 +206,16 @@ If not set, the default in the
 .Pa GENERIC
 kernel is
 .Nm .
+.It Va kern.vt.color. Ns Ar colornum Ns Va .rgb
+Set this value to override default palette entry for color
+.Pa colornum
+which should be in a range from 0 to 15 inclusive.
+The value should be either a comma-separated triplet of
+red, green, and blue values in a range from 0 to 255 or
+HTML-like hex triplet.
+See
+.Sx EXAMPLES
+below.
 .It Va kern.vt.fb.default_mode
 Set this value to a graphic mode to override the default mode picked by the
 .Nm
@@ -309,6 +320,11 @@ The connector name was found in
 .Dl info: [drm] Connector LVDS-1: get mode from tunables:
 .Dl info: [drm]   - kern.vt.fb.modes.LVDS-1
 .Dl info: [drm]   - kern.vt.fb.default_mode
+.Pp
+To set black and white colors of console palette
+.Pp
+.Dl kern.vt.color.0.rgb="10,10,10"
+.Dl kern.vt.color.15.rgb="#f0f0f0"
 .Sh SEE ALSO
 .Xr kbdcontrol 1 ,
 .Xr login 1 ,