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("$FreeBSD$"); 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 } 127