Add vt(4) support to the console initialisation script, specifically:

- Identify the console driver used and print syscons or vt as appropriate.

- If vt is used and a keymap could not be loaded, then try to replace the
  keymap name configured in rc.conf based on a replacement list in this
  script. Warn about the fact, that a syscons keyname is configured and
  report the replacement used under vt.

- If no replacement keymap is found, no keymap is loaded and a warning
  is displayed, which points at the conversion script and allows the
  conversion of keymaps not part of the official distribution.

This patch has been sent to the -hackers list for review, but no comment
has been received, yet. It is tested to work under syscons and vt on my
system (on vt with either the syscons or vt keymap file name in rc.conf).

MFC after:	3 days

1 files changed, 115 insertions, 4 deletions

diff --git a/etc/rc.d/syscons b/etc/rc.d/syscons
index f611e3b..0dc41ad 100755
--- a/etc/rc.d/syscons
+++ b/etc/rc.d/syscons
@@ -45,16 +45,122 @@ stop_cmd=":"
 kbddev=/dev/ttyv0
 viddev=/dev/ttyv0
 
-_sc_config="syscons"
+_sc_config=
+_sc_console=
 _sc_initdone=
+_sc_keymap_msg=
 sc_init()
 {
 	if [ -z "${_sc_initdone}" ]; then
+		if [ -z "${_sc_console}" ]; then
+			if [ x`sysctl -n kern.vty` = x"vt" ]; then
+				_sc_console="vt"
+			else
+				_sc_console="syscons"
+			fi
+			_sc_config="${_sc_console}"
+		fi
 		echo -n "Configuring ${_sc_config}:"
 		_sc_initdone=yes
 	fi
 }
 
+# syscons to vt migration helper
+lookup_keymap_for_vt()
+{
+	keymap=`basename $1 .kbd`
+	case $keymap in
+hy.armscii-8)			echo am;;
+be.iso.acc)			echo be.acc;;
+be.iso)				echo be;;
+bg.bds.ctrlcaps)		echo bg.bds;;
+bg.phonetic.ctrlcaps)		echo bg.phonetic;;
+br275.iso.acc)			echo br;;
+br275.*)			echo br.noacc;;
+by.*)				echo by;;
+fr_CA.iso.acc)			echo ca-fr;;
+swissgerman.macbook.acc)	echo ch.macbook.acc;;
+swissgerman.iso.acc)		echo ch.acc;;
+swissgerman.*)			echo ch;;
+swissfrench.iso.acc)		echo ch-fr.acc;;
+swissfrench.*)			echo ch-fr;;
+ce.iso2)			echo centraleuropean.qwerty;;
+colemak.iso15.acc)		echo colemak.acc;;
+cs.*|cz.*)			echo cz;;
+german.iso.acc)			echo de.acc;;
+german.*)			echo de;;
+danish.iso.acc)			echo dk.acc;;
+danish.iso.macbook)		echo dk.macbook;;
+danish.*)			echo dk;;
+estonian.*)			echo ee;;
+spanish.dvorak)			echo es.dvorak;;
+spanish.iso*.acc)		echo es.acc;;
+spanish.iso)			echo es;;
+finnish.*)			echo fi;;
+fr.macbook.acc)			echo fr.macbook;;
+fr.iso.acc)			echo fr.acc;;
+fr.iso)				echo fr;;
+el.iso07)			echo gr;;
+gr.us101.acc)			echo gr.101.acc;;
+hr.iso)				echo hr;;
+hu.iso2.101keys)		echo hu.101;;
+hu.iso2.102keys)		echo hu.102;;
+iw.iso8)			echo il;;
+icelandic.iso.acc)		echo is.acc;;
+icelandic.iso)			echo is;;
+it.iso)				echo it;;
+jp.106x)			echo jp.capsctrl;;
+jp.106)				echo jp;;
+#?? jp.pc98.iso)		echo jp.pc98;;
+kk.pt154.io)			echo kz.io;;
+kk.pt154.kst)			echo kz.kst;;
+latinamerican.iso.acc)		echo latinamerican.acc;;
+lt.iso4)			echo lt;;
+norwegian.iso)			echo no;;
+norwegian.dvorak)		echo no.dvorak;;
+dutch.iso.acc)			echo nl;;
+eee_nordic)			echo nordic.asus-eee;;
+pl_PL.dvorak)			echo pl.dvorak;;
+pl_PL.ISO8859-2)		echo pl;;
+pt.iso.acc)			echo pt.acc;;
+pt.iso)				echo pt;;
+ru.koi8-r.shift)		echo ru.shift;;
+ru.koi8-r.win)			echo ru.win;;
+ru.*)				echo ru;;
+swedish.*)			echo se;;
+si.iso)				echo si;;
+sk.iso2)			echo sk;;
+tr.iso9.q)			echo tr;;
+ua.koi8-u.shift.alt)		echo ua.shift.alt;;
+ua.*)				echo ua;;
+uk.*-ctrl)			echo uk.capsctrl;;
+uk.dvorak)			echo uk.dvorak;;
+uk.*)				echo uk;;
+us.iso.acc)			echo us.acc;;
+us.pc-ctrl)			echo us.ctrl;;
+us.iso)				echo us;;
+    esac
+}
+
+kbdcontrol_load_keymap()
+{
+	errmsg=`kbdcontrol < ${kbddev} -l ${keymap} 2>&1`
+	if [ -n "${errmsg}" -a "${_sc_console}" = "vt" ]; then
+		_sc_keymap_msg="${errmsg}"
+		keymap_vt=`lookup_keymap_for_vt ${keymap}`
+		if [ -n "${keymap_vt}" ]; then
+			errmsg=`kbdcontrol < ${kbddev} -l ${keymap_vt} 2>&1`
+			if [ -z "${errmsg}" ]; then
+		    		_sc_keymap_msg="New keymap: In /etc/rc.conf replace 'keymap=${keymap}' by 'keymap=${keymap_vt}'"
+			fi
+		else
+			_sc_keymap_msg="No replacement found for keymap '${keymap}'.
+You may try to convert your keymap file using 'convert-keymap.pl', which is
+part of the system sources and located in /usr/src/tools/tools/vt/keymaps/"
+		fi
+	fi
+}
+
 # helper
 syscons_configure_keyboard()
 {
@@ -65,7 +171,7 @@ syscons_configure_keyboard()
 		;;
 	*)
 		sc_init
-		echo -n ' keymap';	kbdcontrol < ${kbddev} -l ${keymap}
+		echo -n ' keymap';	kbdcontrol_load_keymap
 		;;
 	esac
 
@@ -139,10 +245,9 @@ syscons_setkeyboard()
 	#
 	if [ -n "${_sc_initdone}" ]; then
 		echo '.'
-		_sc_config="syscons"
+		_sc_config="${_sc_console}"
 		_sc_initdone=
 	fi
-
 }
 
 syscons_precmd()
@@ -256,6 +361,12 @@ syscons_start()
 	fi
 
 	[ -n "${_sc_initdone}" ] && echo '.'
+	if [ -n "${_sc_keymap_msg}" ]; then
+		echo
+		echo "WARNING:"
+		echo "${_sc_keymap_msg}."
+		echo
+	fi
 }
 
 load_rc_config $name