This is the 3rd stage of syscons code reorganization.

- Split terminal emulation code from the main part of the driver so
that we can have alternative terminal emulator modules if we like in
the future.  (We are not quite there yet, though.)

- Put sysmouse related code in a separate file, thus, simplifying the
main part of the driver.

As some files are added to the source tree, you need to run config(8)
before you compile a new kernel next time.

You shouldn't see any functional change by this commit; this is only
internal code reorganization.

1 files changed, 729 insertions, 0 deletions

diff --git a/sys/dev/syscons/scterm-sc.c b/sys/dev/syscons/scterm-sc.c
new file mode 100644
index 0000000..317f7da
--- /dev/null
+++ b/sys/dev/syscons/scterm-sc.c
@@ -0,0 +1,729 @@
+/*-
+ * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
+ * Copyright (c) 1992-1998 Søren Schmidt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer as
+ *    the first lines of this file unmodified.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include "sc.h"
+#include "opt_syscons.h"
+
+#if NSC > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/consio.h>
+
+#include <machine/pc/display.h>
+
+#include <dev/syscons/syscons.h>
+#include <dev/syscons/sctermvar.h>
+
+#ifndef SC_DUMB_TERMINAL
+
+#define MAX_ESC_PAR	5
+
+/* attribute flags */
+typedef struct {
+	u_short		fg;			/* foreground color */
+	u_short		bg;			/* background color */
+} color_t;
+
+typedef struct {
+	int		flags;
+#define SCTERM_BUSY	(1 << 0)
+	int		esc;
+	int		num_param;
+	int		last_param;
+	int		param[MAX_ESC_PAR];
+	int		saved_xpos;
+	int		saved_ypos;
+	int		attr_mask;		/* current logical attr mask */
+#define NORMAL_ATTR	0x00
+#define BLINK_ATTR	0x01
+#define BOLD_ATTR	0x02
+#define UNDERLINE_ATTR	0x04
+#define REVERSE_ATTR	0x08
+#define FG_CHANGED	0x10
+#define BG_CHANGED	0x20
+	int		cur_attr;		/* current hardware attr word */
+	color_t		cur_color;		/* current hardware color */
+	color_t		std_color;		/* normal hardware color */
+	color_t		rev_color;		/* reverse hardware color */
+	color_t		dflt_std_color;		/* default normal color */
+	color_t		dflt_rev_color;		/* default reverse color */
+} term_stat;
+
+static sc_term_init_t	scterm_init;
+static sc_term_term_t	scterm_term;
+static sc_term_puts_t	scterm_puts;
+static sc_term_ioctl_t	scterm_ioctl;
+static sc_term_reset_t	scterm_reset;
+static sc_term_default_attr_t	scterm_default_attr;
+static sc_term_clear_t	scterm_clear;
+static sc_term_notify_t	scterm_notify;
+static sc_term_input_t	scterm_input;
+
+static sc_term_sw_t sc_term_sc = {
+	{ NULL, NULL },
+	"sc",				/* emulator name */
+	"syscons terminal",		/* description */
+	"*",				/* matching renderer, any :-) */
+	sizeof(term_stat),		/* softc size */
+	0,
+	scterm_init,
+	scterm_term,
+	scterm_puts,
+	scterm_ioctl,
+	scterm_reset,
+	scterm_default_attr,
+	scterm_clear,
+	scterm_notify,
+	scterm_input,
+};
+
+SCTERM_MODULE(sc, sc_term_sc);
+
+static term_stat	reserved_term_stat;
+static void		scterm_scan_esc(scr_stat *scp, term_stat *tcp,
+					u_char c);
+static int		mask2attr(term_stat *tcp);
+
+static int
+scterm_init(scr_stat *scp, void **softc, int code)
+{
+	term_stat *tcp;
+
+	if (*softc == NULL) {
+		if (reserved_term_stat.flags & SCTERM_BUSY)
+			return EINVAL;
+		*softc = &reserved_term_stat;
+	}
+	tcp = *softc;
+
+	switch (code) {
+	case SC_TE_COLD_INIT:
+		bzero(tcp, sizeof(*tcp));
+		tcp->flags = SCTERM_BUSY;
+		tcp->esc = 0;
+		tcp->saved_xpos = -1;
+		tcp->saved_ypos = -1;
+		tcp->attr_mask = NORMAL_ATTR;
+		/* XXX */
+		tcp->dflt_std_color.fg = SC_NORM_ATTR & 0x0f;
+		tcp->dflt_std_color.bg = (SC_NORM_ATTR >> 4) & 0x0f;
+		tcp->dflt_rev_color.fg = SC_NORM_REV_ATTR & 0x0f;
+		tcp->dflt_rev_color.bg = (SC_NORM_REV_ATTR >> 4) & 0x0f;
+		tcp->std_color = tcp->dflt_std_color;
+		tcp->rev_color = tcp->dflt_rev_color;
+		tcp->cur_color = tcp->std_color;
+		tcp->cur_attr = mask2attr(tcp);
+		++sc_term_sc.te_refcount;
+		break;
+
+	case SC_TE_WARM_INIT:
+		tcp->esc = 0;
+		tcp->saved_xpos = -1;
+		tcp->saved_ypos = -1;
+		tcp->std_color = tcp->dflt_std_color;
+		tcp->rev_color = tcp->dflt_rev_color;
+		tcp->cur_color = tcp->std_color;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	}
+
+	return 0;
+}
+
+static int
+scterm_term(scr_stat *scp, void **softc)
+{
+	if (*softc == &reserved_term_stat) {
+		*softc = NULL;
+		bzero(&reserved_term_stat, sizeof(reserved_term_stat));
+	}
+	--sc_term_sc.te_refcount;
+	return 0;
+}
+
+static void
+scterm_scan_esc(scr_stat *scp, term_stat *tcp, u_char c)
+{
+	static u_char ansi_col[16] = {
+		FG_BLACK,     FG_RED,          FG_GREEN,      FG_BROWN,
+		FG_BLUE,      FG_MAGENTA,      FG_CYAN,       FG_LIGHTGREY,
+		FG_DARKGREY,  FG_LIGHTRED,     FG_LIGHTGREEN, FG_YELLOW,
+		FG_LIGHTBLUE, FG_LIGHTMAGENTA, FG_LIGHTCYAN,  FG_WHITE
+	};
+	sc_softc_t *sc;
+	int i, n;
+
+    i = n = 0;
+    sc = scp->sc; 
+    if (tcp->esc == 1) {	/* seen ESC */
+	switch (c) {
+
+	case '7':   /* Save cursor position */
+	    tcp->saved_xpos = scp->xpos;
+	    tcp->saved_ypos = scp->ypos;
+	    break;
+
+	case '8':   /* Restore saved cursor position */
+	    if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
+		sc_move_cursor(scp, tcp->saved_xpos, tcp->saved_ypos);
+	    break;
+
+	case '[':   /* Start ESC [ sequence */
+	    tcp->esc = 2;
+	    tcp->last_param = -1;
+	    for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
+		tcp->param[i] = 1;
+	    tcp->num_param = 0;
+	    return;
+
+	case 'M':   /* Move cursor up 1 line, scroll if at top */
+	    sc_term_up_scroll(scp, 1, sc->scr_map[0x20], tcp->cur_attr, 0, 0);
+	    break;
+#if notyet
+	case 'Q':
+	    tcp->esc = 4;
+	    return;
+#endif
+	case 'c':   /* Clear screen & home */
+	    sc_clear_screen(scp);
+	    break;
+
+	case '(':   /* iso-2022: designate 94 character set to G0 */
+	    tcp->esc = 5;
+	    return;
+	}
+    }
+    else if (tcp->esc == 2) {	/* seen ESC [ */
+	if (c >= '0' && c <= '9') {
+	    if (tcp->num_param < MAX_ESC_PAR) {
+		if (tcp->last_param != tcp->num_param) {
+		    tcp->last_param = tcp->num_param;
+		    tcp->param[tcp->num_param] = 0;
+		} else {
+		    tcp->param[tcp->num_param] *= 10;
+		}
+		tcp->param[tcp->num_param] += c - '0';
+		return;
+	    }
+	}
+	tcp->num_param = tcp->last_param + 1;
+	switch (c) {
+
+	case ';':
+	    if (tcp->num_param < MAX_ESC_PAR)
+		return;
+	    break;
+
+	case '=':
+	    tcp->esc = 3;
+	    tcp->last_param = -1;
+	    for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
+		tcp->param[i] = 1;
+	    tcp->num_param = 0;
+	    return;
+
+	case 'A':   /* up n rows */
+	    sc_term_up(scp, tcp->param[0], 0);
+	    break;
+
+	case 'B':   /* down n rows */
+	    sc_term_down(scp, tcp->param[0], 0);
+	    break;
+
+	case 'C':   /* right n columns */
+	    sc_term_right(scp, tcp->param[0]);
+	    break;
+
+	case 'D':   /* left n columns */
+	    sc_term_left(scp, tcp->param[0]);
+	    break;
+
+	case 'E':   /* cursor to start of line n lines down */
+	    n = tcp->param[0]; if (n < 1) n = 1;
+	    sc_move_cursor(scp, 0, scp->ypos + n);
+	    break;
+
+	case 'F':   /* cursor to start of line n lines up */
+	    n = tcp->param[0]; if (n < 1) n = 1;
+	    sc_move_cursor(scp, 0, scp->ypos - n);
+	    break;
+
+	case 'f':   /* Cursor move */
+	case 'H':
+	    if (tcp->num_param == 0)
+		sc_move_cursor(scp, 0, 0);
+	    else if (tcp->num_param == 2)
+		sc_move_cursor(scp, tcp->param[1] - 1, tcp->param[0] - 1);
+	    break;
+
+	case 'J':   /* Clear all or part of display */
+	    if (tcp->num_param == 0)
+		n = 0;
+	    else
+		n = tcp->param[0];
+	    sc_term_clr_eos(scp, n, sc->scr_map[0x20], tcp->cur_attr);
+	    break;
+
+	case 'K':   /* Clear all or part of line */
+	    if (tcp->num_param == 0)
+		n = 0;
+	    else
+		n = tcp->param[0];
+	    sc_term_clr_eol(scp, n, sc->scr_map[0x20], tcp->cur_attr);
+	    break;
+
+	case 'L':   /* Insert n lines */
+	    sc_term_ins_line(scp, scp->ypos, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr, 0);
+	    break;
+
+	case 'M':   /* Delete n lines */
+	    sc_term_del_line(scp, scp->ypos, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr, 0);
+	    break;
+
+	case 'P':   /* Delete n chars */
+	    sc_term_del_char(scp, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr);
+	    break;
+
+	case '@':   /* Insert n chars */
+	    sc_term_ins_char(scp, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr);
+	    break;
+
+	case 'S':   /* scroll up n lines */
+	    sc_term_del_line(scp, 0, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr, 0);
+	    break;
+
+	case 'T':   /* scroll down n lines */
+	    sc_term_ins_line(scp, 0, tcp->param[0],
+			     sc->scr_map[0x20], tcp->cur_attr, 0);
+	    break;
+
+	case 'X':   /* erase n characters in line */
+	    n = tcp->param[0]; if (n < 1)  n = 1;
+	    if (n > scp->xsize - scp->xpos)
+		n = scp->xsize - scp->xpos;
+	    sc_vtb_erase(&scp->vtb, scp->cursor_pos, n,
+			 sc->scr_map[0x20], tcp->cur_attr);
+	    mark_for_update(scp, scp->cursor_pos);
+	    mark_for_update(scp, scp->cursor_pos + n - 1);
+	    break;
+
+	case 'Z':   /* move n tabs backwards */
+	    sc_term_backtab(scp, tcp->param[0]);
+	    break;
+
+	case '`':   /* move cursor to column n */
+	    sc_term_col(scp, tcp->param[0]);
+	    break;
+
+	case 'a':   /* move cursor n columns to the right */
+	    sc_term_right(scp, tcp->param[0]);
+	    break;
+
+	case 'd':   /* move cursor to row n */
+	    sc_term_row(scp, tcp->param[0]);
+	    break;
+
+	case 'e':   /* move cursor n rows down */
+	    sc_term_down(scp, tcp->param[0], 0);
+	    break;
+
+	case 'm':   /* change attribute */
+	    if (tcp->num_param == 0) {
+		tcp->attr_mask = NORMAL_ATTR;
+		tcp->cur_color = tcp->std_color;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    }
+	    for (i = 0; i < tcp->num_param; i++) {
+		switch (n = tcp->param[i]) {
+		case 0: /* back to normal */
+		    tcp->attr_mask = NORMAL_ATTR;
+		    tcp->cur_color = tcp->std_color;
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 1: /* bold */
+		    tcp->attr_mask |= BOLD_ATTR;
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 4: /* underline */
+		    tcp->attr_mask |= UNDERLINE_ATTR;
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 5: /* blink */
+		    tcp->attr_mask |= BLINK_ATTR;
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 7: /* reverse video */
+		    tcp->attr_mask |= REVERSE_ATTR;
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 30: case 31: /* set fg color */
+		case 32: case 33: case 34:
+		case 35: case 36: case 37:
+		    tcp->attr_mask |= FG_CHANGED;
+		    tcp->cur_color.fg = ansi_col[n - 30];
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		case 40: case 41: /* set bg color */
+		case 42: case 43: case 44:
+		case 45: case 46: case 47:
+		    tcp->attr_mask |= BG_CHANGED;
+		    tcp->cur_color.bg = ansi_col[n - 40];
+		    tcp->cur_attr = mask2attr(tcp);
+		    break;
+		}
+	    }
+	    break;
+
+	case 's':   /* Save cursor position */
+	    tcp->saved_xpos = scp->xpos;
+	    tcp->saved_ypos = scp->ypos;
+	    break;
+
+	case 'u':   /* Restore saved cursor position */
+	    if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
+		sc_move_cursor(scp, tcp->saved_xpos, tcp->saved_ypos);
+	    break;
+
+	case 'x':
+	    if (tcp->num_param == 0)
+		n = 0;
+	    else
+		n = tcp->param[0];
+	    switch (n) {
+	    case 0:     /* reset attributes */
+		tcp->attr_mask = NORMAL_ATTR;
+		tcp->cur_color = tcp->std_color = tcp->dflt_std_color;
+		tcp->rev_color = tcp->dflt_rev_color;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 1:     /* set ansi background */
+		tcp->attr_mask &= ~BG_CHANGED;
+		tcp->cur_color.bg = tcp->std_color.bg =
+		    ansi_col[tcp->param[1] & 0x0f];
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 2:     /* set ansi foreground */
+		tcp->attr_mask &= ~FG_CHANGED;
+		tcp->cur_color.fg = tcp->std_color.fg =
+		    ansi_col[tcp->param[1] & 0x0f];
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 3:     /* set ansi attribute directly */
+		tcp->attr_mask &= ~(FG_CHANGED | BG_CHANGED);
+		tcp->cur_color.fg = tcp->std_color.fg =
+		    tcp->param[1] & 0x0f;
+		tcp->cur_color.bg = tcp->std_color.bg =
+		    (tcp->param[1] >> 4) & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 5:     /* set ansi reverse video background */
+		tcp->rev_color.bg = ansi_col[tcp->param[1] & 0x0f];
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 6:     /* set ansi reverse video foreground */
+		tcp->rev_color.fg = ansi_col[tcp->param[1] & 0x0f];
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    case 7:     /* set ansi reverse video directly */
+		tcp->rev_color.fg = tcp->param[1] & 0x0f;
+		tcp->rev_color.bg = (tcp->param[1] >> 4) & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	    }
+	    break;
+
+	case 'z':   /* switch to (virtual) console n */
+	    if (tcp->num_param == 1)
+		sc_switch_scr(sc, tcp->param[0]);
+	    break;
+	}
+    }
+    else if (tcp->esc == 3) {	/* seen ESC [0-9]+ = */
+	if (c >= '0' && c <= '9') {
+	    if (tcp->num_param < MAX_ESC_PAR) {
+		if (tcp->last_param != tcp->num_param) {
+		    tcp->last_param = tcp->num_param;
+		    tcp->param[tcp->num_param] = 0;
+		} else {
+		    tcp->param[tcp->num_param] *= 10;
+		}
+		tcp->param[tcp->num_param] += c - '0';
+		return;
+	    }
+	}
+	tcp->num_param = tcp->last_param + 1;
+	switch (c) {
+
+	case ';':
+	    if (tcp->num_param < MAX_ESC_PAR)
+		return;
+	    break;
+
+	case 'A':   /* set display border color */
+	    if (tcp->num_param == 1) {
+		scp->border=tcp->param[0] & 0xff;
+		if (scp == sc->cur_scp)
+		    sc_set_border(scp, scp->border);
+            }
+	    break;
+
+	case 'B':   /* set bell pitch and duration */
+	    if (tcp->num_param == 2) {
+		scp->bell_pitch = tcp->param[0];
+		scp->bell_duration = tcp->param[1];
+	    }
+	    break;
+
+	case 'C':   /* set cursor type & shape */
+	    if (!ISGRAPHSC(sc->cur_scp))
+		sc_remove_cursor_image(sc->cur_scp);
+	    if (tcp->num_param == 1) {
+		if (tcp->param[0] & 0x01)
+		    sc->flags |= SC_BLINK_CURSOR;
+		else
+		    sc->flags &= ~SC_BLINK_CURSOR;
+		if (tcp->param[0] & 0x02) 
+		    sc->flags |= SC_CHAR_CURSOR;
+		else
+		    sc->flags &= ~SC_CHAR_CURSOR;
+	    } else if (tcp->num_param == 2) {
+		sc->cursor_base = scp->font_size 
+					- (tcp->param[1] & 0x1F) - 1;
+		sc->cursor_height = (tcp->param[1] & 0x1F) 
+					- (tcp->param[0] & 0x1F) + 1;
+	    }
+	    /* 
+	     * The cursor shape is global property; all virtual consoles
+	     * are affected. Update the cursor in the current console...
+	     */
+	    if (!ISGRAPHSC(sc->cur_scp)) {
+		i = spltty();
+		sc_set_cursor_image(sc->cur_scp);
+		sc_draw_cursor_image(sc->cur_scp);
+		splx(i);
+	    }
+	    break;
+
+	case 'F':   /* set ansi foreground */
+	    if (tcp->num_param == 1) {
+		tcp->attr_mask &= ~FG_CHANGED;
+		tcp->cur_color.fg = tcp->std_color.fg = tcp->param[0] & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+	    }
+	    break;
+
+	case 'G':   /* set ansi background */
+	    if (tcp->num_param == 1) {
+		tcp->attr_mask &= ~BG_CHANGED;
+		tcp->cur_color.bg = tcp->std_color.bg = tcp->param[0] & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+	    }
+	    break;
+
+	case 'H':   /* set ansi reverse video foreground */
+	    if (tcp->num_param == 1) {
+		tcp->rev_color.fg = tcp->param[0] & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+	    }
+	    break;
+
+	case 'I':   /* set ansi reverse video background */
+	    if (tcp->num_param == 1) {
+		tcp->rev_color.bg = tcp->param[0] & 0x0f;
+		tcp->cur_attr = mask2attr(tcp);
+	    }
+	    break;
+	}
+
+#if notyet
+	} else if (tcp->esc == 4) {	/* seen ESC Q */
+		/* to be filled */
+#endif
+	} else if (tcp->esc == 5) {	/* seen ESC ( */
+		switch (c) {
+		case 'B':   /* iso-2022: desginate ASCII into G0 */
+			break;
+			/* other items to be filled */
+		default:
+			break;
+		}
+	}
+	tcp->esc = 0;
+}
+
+static void
+scterm_puts(scr_stat *scp, u_char *buf, int len)
+{
+	term_stat *tcp;
+
+	tcp = scp->ts;
+outloop:
+	scp->sc->write_in_progress++;
+
+	if (tcp->esc) {
+		scterm_scan_esc(scp, tcp, *buf);
+		buf++;
+		len--;
+	} else {
+		switch (*buf) {
+		case 0x1b:
+			tcp->esc = 1;
+			tcp->num_param = 0;
+			buf++;
+			len--;
+			break;
+		default:
+			sc_term_gen_print(scp, &buf, &len, tcp->cur_attr);
+			break;
+		}
+	}
+
+	sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], tcp->cur_attr);
+
+	scp->sc->write_in_progress--;
+	if (len)
+		goto outloop;
+}
+
+static int
+scterm_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
+	     int flag, struct proc *p)
+{
+	term_stat *tcp = scp->ts;
+	vid_info_t *vi;
+
+	switch (cmd) {
+	case GIO_ATTR:      	/* get current attributes */
+		/* FIXME: */
+		*(int*)data = (tcp->cur_attr >> 8) & 0xff;
+		return 0;
+	case CONS_GETINFO:  	/* get current (virtual) console info */
+		vi = (vid_info_t *)data;
+		if (vi->size != sizeof(struct vid_info))
+			return EINVAL;
+		vi->mv_norm.fore = tcp->std_color.fg;
+		vi->mv_norm.back = tcp->std_color.bg;
+		vi->mv_rev.fore = tcp->rev_color.fg;
+		vi->mv_rev.back = tcp->rev_color.bg;
+		/*
+		 * The other fields are filled by the upper routine. XXX
+		 */
+		return ENOIOCTL;
+	}
+	return ENOIOCTL;
+}
+
+static int
+scterm_reset(scr_stat *scp, int code)
+{
+	/* FIXME */
+	return 0;
+}
+
+static void
+scterm_default_attr(scr_stat *scp, int color, int rev_color)
+{
+	term_stat *tcp = scp->ts;
+
+	tcp->dflt_std_color.fg = color & 0x0f;
+	tcp->dflt_std_color.bg = (color >> 4) & 0x0f;
+	tcp->dflt_rev_color.fg = rev_color & 0x0f;
+	tcp->dflt_rev_color.bg = (rev_color >> 4) & 0x0f;
+	tcp->std_color = tcp->dflt_std_color;
+	tcp->rev_color = tcp->dflt_rev_color;
+	tcp->cur_color = tcp->std_color;
+	tcp->cur_attr = mask2attr(tcp);
+}
+
+static void
+scterm_clear(scr_stat *scp)
+{
+	term_stat *tcp = scp->ts;
+
+	sc_move_cursor(scp, 0, 0);
+	sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], tcp->cur_attr);
+	mark_all(scp);
+}
+
+static void
+scterm_notify(scr_stat *scp, int event)
+{
+	switch (event) {
+	case SC_TE_NOTIFY_VTSWITCH_IN:
+		break;
+	case SC_TE_NOTIFY_VTSWITCH_OUT:
+		break;
+	}
+}
+
+static int
+scterm_input(scr_stat *scp, int c, struct tty *tp)
+{
+	return FALSE;
+}
+
+/*
+ * Calculate hardware attributes word using logical attributes mask and
+ * hardware colors
+ */
+
+/* FIXME */
+static int
+mask2attr(term_stat *tcp)
+{
+	int attr, mask = tcp->attr_mask;
+
+	if (mask & REVERSE_ATTR) {
+		attr = ((mask & FG_CHANGED) ?
+			tcp->cur_color.bg : tcp->rev_color.fg) |
+			(((mask & BG_CHANGED) ?
+			tcp->cur_color.fg : tcp->rev_color.bg) << 4);
+	} else
+		attr = tcp->cur_color.fg | (tcp->cur_color.bg << 4);
+
+	/* XXX: underline mapping for Hercules adapter can be better */
+	if (mask & (BOLD_ATTR | UNDERLINE_ATTR))
+		attr ^= 0x08;
+	if (mask & BLINK_ATTR)
+		attr ^= 0x80;
+
+	return (attr << 8);
+}
+
+#endif /* SC_DUMB_TERMINAL */
+
+#endif /* NSC > 0 */