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-dumb.c,v 1.2 2000/01/29 15:08:45 peter Exp $ 27 * $DragonFly: src/sys/dev/misc/syscons/scterm-dumb.c,v 1.5 2006/07/28 02:17:36 dillon 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 <machine/pc/display.h> 38 39 #include "syscons.h" 40 #include "sctermvar.h" 41 42 #ifdef SC_DUMB_TERMINAL 43 44 /* dumb terminal emulator */ 45 46 static sc_term_init_t dumb_init; 47 static sc_term_term_t dumb_term; 48 static sc_term_puts_t dumb_puts; 49 static sc_term_ioctl_t dumb_ioctl; 50 static sc_term_clear_t dumb_clear; 51 static sc_term_input_t dumb_input; 52 static void dumb_nop(void); 53 54 static sc_term_sw_t sc_term_dumb = { 55 { NULL, NULL }, 56 "dumb", /* emulator name */ 57 "dumb terminal", /* description */ 58 "*", /* matching renderer */ 59 0, /* softc size */ 60 0, 61 dumb_init, 62 dumb_term, 63 dumb_puts, 64 dumb_ioctl, 65 (sc_term_reset_t *)dumb_nop, 66 (sc_term_default_attr_t *)dumb_nop, 67 dumb_clear, 68 (sc_term_notify_t *)dumb_nop, 69 dumb_input, 70 }; 71 72 SCTERM_MODULE(dumb, sc_term_dumb); 73 74 static int 75 dumb_init(scr_stat *scp, void **softc, int code) 76 { 77 switch (code) { 78 case SC_TE_COLD_INIT: 79 ++sc_term_dumb.te_refcount; 80 break; 81 case SC_TE_WARM_INIT: 82 break; 83 } 84 return 0; 85 } 86 87 static int 88 dumb_term(scr_stat *scp, void **softc) 89 { 90 --sc_term_dumb.te_refcount; 91 return 0; 92 } 93 94 static void 95 dumb_puts(scr_stat *scp, u_char *buf, int len) 96 { 97 while (len > 0) { 98 atomic_add_char(&scp->sc->write_in_progress, 1); 99 sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8); 100 sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], 101 SC_NORM_ATTR << 8); 102 atomic_add_char(&scp->sc->write_in_progress, -1); 103 } 104 } 105 106 static int 107 dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data, 108 int flag) 109 { 110 vid_info_t *vi; 111 112 switch (cmd) { 113 case GIO_ATTR: /* get current attributes */ 114 *(int*)data = SC_NORM_ATTR; 115 return 0; 116 case CONS_GETINFO: /* get current (virtual) console info */ 117 vi = (vid_info_t *)data; 118 if (vi->size != sizeof(struct vid_info)) 119 return EINVAL; 120 vi->mv_norm.fore = SC_NORM_ATTR & 0x0f; 121 vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f; 122 vi->mv_rev.fore = SC_NORM_ATTR & 0x0f; 123 vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f; 124 /* 125 * The other fields are filled by the upper routine. XXX 126 */ 127 return ENOIOCTL; 128 } 129 return ENOIOCTL; 130 } 131 132 static void 133 dumb_clear(scr_stat *scp) 134 { 135 sc_move_cursor(scp, 0, 0); 136 sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8); 137 mark_all(scp); 138 } 139 140 static int 141 dumb_input(scr_stat *scp, int c, struct tty *tp) 142 { 143 return FALSE; 144 } 145 146 static void 147 dumb_nop(void) 148 { 149 /* nothing */ 150 } 151 152 #endif /* SC_DUMB_TERMINAL */ 153