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 * $FreeBSD: src/sys/dev/syscons/scterm.c,v 1.2 2000/01/29 15:08:46 peter Exp $ 27 * $DragonFly: src/sys/dev/misc/syscons/scterm.c,v 1.5 2005/10/30 10:07:10 swildner Exp $ 28 */ 29 30 #include "opt_syscons.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/consio.h> 36 37 #include "syscons.h" 38 #include "sctermvar.h" 39 40 SET_DECLARE(scterm_set, sc_term_sw_t); 41 42 /* exported subroutines */ 43 44 /* 45 * Move the cursor, make sure reentrancy doesn't implode fields 46 * on panic. 47 */ 48 void 49 sc_move_cursor(scr_stat *scp, int x, int y) 50 { 51 if (x < 0) 52 x = 0; 53 if (y < 0) 54 y = 0; 55 if (x >= scp->xsize) 56 x = scp->xsize - 1; 57 if (y >= scp->ysize) 58 y = scp->ysize - 1; 59 scp->xpos = x; 60 scp->ypos = y; 61 scp->cursor_pos = scp->ypos*scp->xsize + x; 62 } 63 64 void 65 sc_clear_screen(scr_stat *scp) 66 { 67 (*scp->tsw->te_clear)(scp); 68 scp->cursor_oldpos = scp->cursor_pos; 69 sc_remove_cutmarking(scp); 70 } 71 72 /* terminal emulator manager routines */ 73 74 static LIST_HEAD(, sc_term_sw) sc_term_list = 75 LIST_HEAD_INITIALIZER(sc_term_list); 76 77 int 78 sc_term_add(sc_term_sw_t *sw) 79 { 80 LIST_INSERT_HEAD(&sc_term_list, sw, link); 81 return 0; 82 } 83 84 int 85 sc_term_remove(sc_term_sw_t *sw) 86 { 87 LIST_REMOVE(sw, link); 88 return 0; 89 } 90 91 sc_term_sw_t * 92 sc_term_match(char *name) 93 { 94 sc_term_sw_t **list; 95 sc_term_sw_t *p; 96 97 if (!LIST_EMPTY(&sc_term_list)) { 98 LIST_FOREACH(p, &sc_term_list, link) { 99 if ((strcmp(name, p->te_name) == 0) 100 || (strcmp(name, "*") == 0)) { 101 return p; 102 } 103 } 104 } else { 105 SET_FOREACH(list, scterm_set) { 106 p = *list; 107 if ((strcmp(name, p->te_name) == 0) 108 || (strcmp(name, "*") == 0)) { 109 return p; 110 } 111 } 112 } 113 114 return NULL; 115 } 116 117 sc_term_sw_t * 118 sc_term_match_by_number(int index) 119 { 120 sc_term_sw_t *p; 121 122 if (index <= 0) 123 return NULL; 124 LIST_FOREACH(p, &sc_term_list, link) { 125 if (--index <= 0) 126 return p; 127 } 128 129 return NULL; 130 } 131