From d09131e0443a117472181f91fe0b800b524bc0b0 Mon Sep 17 00:00:00 2001 From: Bruce Evans Date: Fri, 22 Feb 2019 06:41:47 +0000 Subject: [PATCH] Connect the restored dumb and sc terminal emulators to the kernel build. Add or fix options to control static and dynamic configuration. Keep the default of scteken, but default to statically configuring all available emulators (now 3 instead of 1). The dumb emulator is almost usable. libedit and libreadline handle dumb terminals perfectly for at least shell history. less(1) works as well as possible except on exit. But curses programs make messes. The dumb emulator has strange color support, with 2 dumb colors for normal output but fancy colorization for the cursor, mouse pointer and (with a non-dumb initial emulator) for low-level console output. Using the sc emulator instead of the default of scteken fixes at least the following bugs: - NUL is a printing character in cons25 but not in teken - teken doesn't support fixed colors for "reverse" video. - The best versions of sc are about 10 times faster than scteken (for printing to the frame buffer). This version is only about 5 times faster. Fix configuration features: - make SC_DFLT_TERM (for setting the initial emulator) a normal option. Add configuration features: - negative options SC_NO_TERM_* for omitting emulators in the static config. Modules for emulators might work, but I don't know of any - vidcontrol -e shows the available emulators - vidcontrol -E sets the active emulator. --- share/man/man4/syscons.4 | 15 ++++++++ sys/conf/NOTES | 4 +++ sys/conf/files | 6 ++-- sys/conf/options | 4 +++ usr.sbin/vidcontrol/vidcontrol.1 | 8 ++++- usr.sbin/vidcontrol/vidcontrol.c | 61 ++++++++++++++++++++++++++++---- 6 files changed, 89 insertions(+), 9 deletions(-) diff --git a/share/man/man4/syscons.4 b/share/man/man4/syscons.4 index 49b4c84aabf1..8fa34eefb67d 100644 --- a/share/man/man4/syscons.4 +++ b/share/man/man4/syscons.4 @@ -38,6 +38,7 @@ .Cd "options SC_ALT_MOUSE_IMAGE" .Cd "options SC_CUT_SEPCHARS=_characters_" .Cd "options SC_CUT_SPACES2TABS" +.Cd "options SC_DFLT_TERM" .Cd "options SC_DISABLE_KDBKEY" .Cd "options SC_DISABLE_REBOOT" .Cd "options SC_HISTORY_SIZE=N" @@ -48,6 +49,9 @@ .Cd "options SC_NO_PALETTE_LOADING" .Cd "options SC_NO_SUSPEND_VTYSWITCH" .Cd "options SC_NO_SYSMOUSE" +.Cd "options SC_NO_TERM_DUMB" +.Cd "options SC_NO_TERM_SC" +.Cd "options SC_NO_TERM_SCTEKEN" .Cd "options SC_PIXEL_MODE" .Cd "options SC_TWOBUTTON_MOUSE" .Cd "options SC_NORM_ATTR=_attribute_" @@ -285,6 +289,8 @@ This options instructs the driver to convert leading spaces into tabs when copying data into cut buffer. This might be useful to preserve indentation when copying tab-indented text. +.It Dv SC_DFLT_TERM=_name_ +This option specifies the name of the preferred terminal emulator. .It Dv SC_DISABLE_KDBKEY This option disables the ``debug'' key combination (by default, it is .Dv Alt-Esc , @@ -409,6 +415,15 @@ will fail if this option is defined. This option implies the .Dv SC_NO_CUTPASTE option too. +.It Dv SC_NO_TERM_DUMB +.It Dv SC_NO_TERM_SC +.It Dv SC_NO_TERM_SCTEKEN +These options remove the +.Qq dumb , +.Qq sc , +and +.Qq scteken +terminal emulators, respectively. .El .Ss Driver Flags The following driver flags can be used to control the diff --git a/sys/conf/NOTES b/sys/conf/NOTES index 8c143205cee8..620a542fd7d9 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -1488,6 +1488,7 @@ options MAXCONS=16 # number of virtual consoles options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode options SC_DFLT_FONT # compile font in makeoptions SC_DFLT_FONT=cp850 +options SC_DFLT_TERM=\"sc\" # default terminal emulator options SC_DISABLE_KDBKEY # disable `debug' key options SC_DISABLE_REBOOT # disable reboot key sequence options SC_HISTORY_SIZE=200 # number of history buffer lines @@ -1518,6 +1519,9 @@ options SC_NO_HISTORY options SC_NO_MODE_CHANGE options SC_NO_SYSMOUSE options SC_NO_SUSPEND_VTYSWITCH +#!options SC_NO_TERM_DUMB +#!options SC_NO_TERM_SC +#!options SC_NO_TERM_SCTEKEN # `flags' for sc # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode diff --git a/sys/conf/files b/sys/conf/files index 6dbb61c59846..c12d4f38bac0 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -3133,7 +3133,9 @@ dev/syscons/rain/rain_saver.c optional rain_saver dev/syscons/schistory.c optional sc dev/syscons/scmouse.c optional sc dev/syscons/scterm.c optional sc -dev/syscons/scterm-teken.c optional sc +dev/syscons/scterm-dumb.c optional sc !SC_NO_TERM_DUMB +dev/syscons/scterm-sc.c optional sc !SC_NO_TERM_SC +dev/syscons/scterm-teken.c optional sc !SC_NO_TERM_TEKEN dev/syscons/scvidctl.c optional sc dev/syscons/scvtb.c optional sc dev/syscons/snake/snake_saver.c optional snake_saver @@ -4883,7 +4885,7 @@ security/mac_veriexec/mac_veriexec_sha1.c optional mac_veriexec_sha1 security/mac_veriexec/mac_veriexec_sha256.c optional mac_veriexec_sha256 security/mac_veriexec/mac_veriexec_sha384.c optional mac_veriexec_sha384 security/mac_veriexec/mac_veriexec_sha512.c optional mac_veriexec_sha512 -teken/teken.c optional sc | vt +teken/teken.c optional sc !SC_NO_TERM_TEKEN | vt ufs/ffs/ffs_alloc.c optional ffs ufs/ffs/ffs_balloc.c optional ffs ufs/ffs/ffs_inode.c optional ffs diff --git a/sys/conf/options b/sys/conf/options index a602ff5b05a6..c0ef70f26541 100644 --- a/sys/conf/options +++ b/sys/conf/options @@ -767,6 +767,7 @@ SC_CUT_SPACES2TABS opt_syscons.h SC_CUT_SEPCHARS opt_syscons.h SC_DEBUG_LEVEL opt_syscons.h SC_DFLT_FONT opt_syscons.h +SC_DFLT_TERM opt_syscons.h SC_DISABLE_KDBKEY opt_syscons.h SC_DISABLE_REBOOT opt_syscons.h SC_HISTORY_SIZE opt_syscons.h @@ -780,6 +781,9 @@ SC_NO_HISTORY opt_syscons.h SC_NO_MODE_CHANGE opt_syscons.h SC_NO_SUSPEND_VTYSWITCH opt_syscons.h SC_NO_SYSMOUSE opt_syscons.h +SC_NO_TERM_DUMB opt_syscons.h +SC_NO_TERM_SC opt_syscons.h +SC_NO_TERM_TEKEN opt_syscons.h SC_NORM_ATTR opt_syscons.h SC_NORM_REV_ATTR opt_syscons.h SC_PIXEL_MODE opt_syscons.h diff --git a/usr.sbin/vidcontrol/vidcontrol.1 b/usr.sbin/vidcontrol/vidcontrol.1 index 6bc8d582b04d..e811d82c6865 100644 --- a/usr.sbin/vidcontrol/vidcontrol.1 +++ b/usr.sbin/vidcontrol/vidcontrol.1 @@ -21,9 +21,10 @@ .Nd system console control and configuration utility .Sh SYNOPSIS .Nm -.Op Fl CdLHPpx +.Op Fl CdHLPpx .Op Fl b Ar color .Op Fl c Ar appearance +.Op Fl E Ar emulator .Oo .Fl f .Oo @@ -282,6 +283,11 @@ Show the current changes. .El .It Fl d Print out current output screen map. +.It Fl E Ar emulator +Set the terminal emulator to +.Ar emulator . +.It Fl e +Show the active and available terminal emulators. .It Xo .Fl f .Oo diff --git a/usr.sbin/vidcontrol/vidcontrol.c b/usr.sbin/vidcontrol/vidcontrol.c index 67c0a9d3f8a5..c7e0524241bd 100644 --- a/usr.sbin/vidcontrol/vidcontrol.c +++ b/usr.sbin/vidcontrol/vidcontrol.c @@ -204,11 +204,11 @@ usage(void) " [foreground [background]] [show]"); else fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n", -"usage: vidcontrol [-CdHLPpx] [-b color] [-c appearance] [-f [size] file]", -" [-g geometry] [-h size] [-i active | adapter | mode]", -" [-l screen_map] [-M char] [-m on | off]", -" [-r foreground background] [-S on | off] [-s number]", -" [-T xterm | cons25] [-t N | off] [mode]", +"usage: vidcontrol [-CdHLPpx] [-b color] [-c appearance] [-E emulator]", +" [-f [[size] file]] [-g geometry] [-h size]", +" [-i active | adapter | mode] [-l screen_map] [-M char]", +" [-m on | off] [-r foreground background] [-S on | off]", +" [-s number] [-T xterm | cons25] [-t N | off] [mode]", " [foreground [background]] [show]"); exit(1); } @@ -1384,6 +1384,45 @@ clear_history(void) } } +static int +get_terminal_emulator(int i, struct term_info *tip) +{ + tip->ti_index = i; + if (ioctl(0, CONS_GETTERM, tip) == 0) + return (1); + strlcpy(tip->ti_name, "unknown", sizeof(tip->ti_name)); + strlcpy(tip->ti_desc, "unknown", sizeof(tip->ti_desc)); + return (0); +} + +static void +get_terminal_emulators(void) +{ + struct term_info ti; + int i; + + for (i = 0; i < 10; i++) { + if (get_terminal_emulator(i, &ti) == 0) + break; + printf("%d: %s (%s)%s\n", i, ti.ti_name, ti.ti_desc, + i == 0 ? " (active)" : ""); + } +} + +static void +set_terminal_emulator(const char *name) +{ + struct term_info old_ti, ti; + + get_terminal_emulator(0, &old_ti); + strlcpy(ti.ti_name, name, sizeof(ti.ti_name)); + if (ioctl(0, CONS_SETTERM, &ti) != 0) + warn("SETTERM '%s'", name); + get_terminal_emulator(0, &ti); + printf("%s (%s) -> %s (%s)\n", old_ti.ti_name, old_ti.ti_desc, + ti.ti_name, ti.ti_desc); +} + static void set_terminal_mode(char *arg) { @@ -1412,7 +1451,7 @@ main(int argc, char **argv) if (vt4_mode) opts = "b:Cc:fg:h:Hi:M:m:pPr:S:s:T:t:x"; else - opts = "b:Cc:dfg:h:Hi:l:LM:m:pPr:S:s:T:t:x"; + opts = "b:Cc:deE:fg:h:Hi:l:LM:m:pPr:S:s:T:t:x"; while ((opt = getopt(argc, argv, opts)) != -1) switch(opt) { @@ -1430,6 +1469,16 @@ main(int argc, char **argv) break; print_scrnmap(); break; + case 'E': + if (vt4_mode) + break; + set_terminal_emulator(optarg); + break; + case 'e': + if (vt4_mode) + break; + get_terminal_emulators(); + break; case 'f': optarg = nextarg(argc, argv, &optind, 'f', 0); if (optarg != NULL) {