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/*-
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/syscons/scterm.c,v 1.7.2.1.6.1 2010/12/21 17:09:25 kensmith Exp $");
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/consio.h>
#include <dev/syscons/syscons.h>
SET_DECLARE(scterm_set, sc_term_sw_t);
/* exported subroutines */
void
sc_move_cursor(scr_stat *scp, int x, int y)
{
if (x < 0)
x = 0;
if (y < 0)
y = 0;
if (x >= scp->xsize)
x = scp->xsize - 1;
if (y >= scp->ysize)
y = scp->ysize - 1;
scp->xpos = x;
scp->ypos = y;
scp->cursor_pos = scp->ypos*scp->xsize + scp->xpos;
}
void
sc_clear_screen(scr_stat *scp)
{
(*scp->tsw->te_clear)(scp);
scp->cursor_oldpos = scp->cursor_pos;
sc_remove_cutmarking(scp);
}
/* terminal emulator manager routines */
static LIST_HEAD(, sc_term_sw) sc_term_list =
LIST_HEAD_INITIALIZER(sc_term_list);
int
sc_term_add(sc_term_sw_t *sw)
{
LIST_INSERT_HEAD(&sc_term_list, sw, link);
return 0;
}
int
sc_term_remove(sc_term_sw_t *sw)
{
LIST_REMOVE(sw, link);
return 0;
}
sc_term_sw_t
*sc_term_match(char *name)
{
sc_term_sw_t **list;
sc_term_sw_t *p;
if (!LIST_EMPTY(&sc_term_list)) {
LIST_FOREACH(p, &sc_term_list, link) {
if ((strcmp(name, p->te_name) == 0)
|| (strcmp(name, "*") == 0)) {
return p;
}
}
} else {
SET_FOREACH(list, scterm_set) {
p = *list;
if ((strcmp(name, p->te_name) == 0)
|| (strcmp(name, "*") == 0)) {
return p;
}
}
}
return NULL;
}
sc_term_sw_t
*sc_term_match_by_number(int index)
{
sc_term_sw_t *p;
if (index <= 0)
return NULL;
LIST_FOREACH(p, &sc_term_list, link) {
if (--index <= 0)
return p;
}
return NULL;
}
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