scterm.c

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    1 /*-
    2  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer as
   10  *    the first lines of this file unmodified.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/9.0/sys/dev/syscons/scterm.c 186681 2009-01-01 13:26:53Z ed $");
   30 
   31 #include "opt_syscons.h"
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/kernel.h>
   36 #include <sys/consio.h>
   37 
   38 #include <dev/syscons/syscons.h>
   39 
   40 SET_DECLARE(scterm_set, sc_term_sw_t);
   41 
   42 /* exported subroutines */
   43 
   44 void
   45 sc_move_cursor(scr_stat *scp, int x, int y)
   46 {
   47         if (x < 0)
   48                 x = 0;
   49         if (y < 0)
   50                 y = 0;
   51         if (x >= scp->xsize)
   52                 x = scp->xsize - 1;
   53         if (y >= scp->ysize)
   54                 y = scp->ysize - 1;
   55         scp->xpos = x;
   56         scp->ypos = y;
   57         scp->cursor_pos = scp->ypos*scp->xsize + scp->xpos;
   58 }
   59 
   60 void
   61 sc_clear_screen(scr_stat *scp)
   62 {
   63         (*scp->tsw->te_clear)(scp);
   64         scp->cursor_oldpos = scp->cursor_pos;
   65         sc_remove_cutmarking(scp);
   66 }
   67 
   68 /* terminal emulator manager routines */
   69 
   70 static LIST_HEAD(, sc_term_sw) sc_term_list = 
   71         LIST_HEAD_INITIALIZER(sc_term_list);
   72 
   73 int
   74 sc_term_add(sc_term_sw_t *sw)
   75 {
   76         LIST_INSERT_HEAD(&sc_term_list, sw, link);
   77         return 0;
   78 }
   79 
   80 int
   81 sc_term_remove(sc_term_sw_t *sw)
   82 {
   83         LIST_REMOVE(sw, link);
   84         return 0;
   85 }
   86 
   87 sc_term_sw_t
   88 *sc_term_match(char *name)
   89 {
   90         sc_term_sw_t **list;
   91         sc_term_sw_t *p;
   92 
   93         if (!LIST_EMPTY(&sc_term_list)) {
   94                 LIST_FOREACH(p, &sc_term_list, link) {
   95                         if ((strcmp(name, p->te_name) == 0)
   96                             || (strcmp(name, "*") == 0)) {
   97                                 return p;
   98                         }
   99                 }
  100         } else {
  101                 SET_FOREACH(list, scterm_set) {
  102                         p = *list;
  103                         if ((strcmp(name, p->te_name) == 0)
  104                             || (strcmp(name, "*") == 0)) {
  105                                 return p;
  106                         }
  107                 }
  108         }
  109 
  110         return NULL;
  111 }
  112 
  113 sc_term_sw_t
  114 *sc_term_match_by_number(int index)
  115 {
  116         sc_term_sw_t *p;
  117 
  118         if (index <= 0)
  119                 return NULL;
  120         LIST_FOREACH(p, &sc_term_list, link) {
  121                 if (--index <= 0)
  122                         return p;
  123         }
  124 
  125         return NULL;
  126 }

Cache object: c6c7027561770bb005012a2d7f87af98

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FreeBSD/Linux Kernel Cross Reference sys/dev/syscons/scterm.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/syscons/scterm.c