1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "opt_syscons.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/consio.h> 39 40 #include <dev/syscons/syscons.h> 41 42 SET_DECLARE(scterm_set, sc_term_sw_t); 43 44 /* exported subroutines */ 45 46 void 47 sc_move_cursor(scr_stat *scp, int x, int y) 48 { 49 if (x < 0) 50 x = 0; 51 if (y < 0) 52 y = 0; 53 if (x >= scp->xsize) 54 x = scp->xsize - 1; 55 if (y >= scp->ysize) 56 y = scp->ysize - 1; 57 scp->xpos = x; 58 scp->ypos = y; 59 scp->cursor_pos = scp->ypos*scp->xsize + scp->xpos; 60 } 61 62 void 63 sc_clear_screen(scr_stat *scp) 64 { 65 (*scp->tsw->te_clear)(scp); 66 scp->cursor_oldpos = scp->cursor_pos; 67 sc_remove_cutmarking(scp); 68 } 69 70 /* terminal emulator manager routines */ 71 72 static LIST_HEAD(, sc_term_sw) sc_term_list = 73 LIST_HEAD_INITIALIZER(sc_term_list); 74 75 int 76 sc_term_add(sc_term_sw_t *sw) 77 { 78 LIST_INSERT_HEAD(&sc_term_list, sw, link); 79 return 0; 80 } 81 82 int 83 sc_term_remove(sc_term_sw_t *sw) 84 { 85 LIST_REMOVE(sw, link); 86 return 0; 87 } 88 89 sc_term_sw_t 90 *sc_term_match(char *name) 91 { 92 sc_term_sw_t **list; 93 sc_term_sw_t *p; 94 95 if (!LIST_EMPTY(&sc_term_list)) { 96 LIST_FOREACH(p, &sc_term_list, link) { 97 if ((strcmp(name, p->te_name) == 0) 98 || (strcmp(name, "*") == 0)) { 99 return p; 100 } 101 } 102 } else { 103 SET_FOREACH(list, scterm_set) { 104 p = *list; 105 if ((strcmp(name, p->te_name) == 0) 106 || (strcmp(name, "*") == 0)) { 107 return p; 108 } 109 } 110 } 111 112 return NULL; 113 } 114 115 sc_term_sw_t 116 *sc_term_match_by_number(int index) 117 { 118 sc_term_sw_t *p; 119 120 if (index <= 0) 121 return NULL; 122 LIST_FOREACH(p, &sc_term_list, link) { 123 if (--index <= 0) 124 return p; 125 } 126 127 return NULL; 128 } 129