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 * $FreeBSD$ 27 */ 28 29 #include "opt_syscons.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/consio.h> 35 36 #include <machine/pc/display.h> 37 38 #include <dev/syscons/syscons.h> 39 #include <dev/syscons/sctermvar.h> 40 41 #ifdef SC_DUMB_TERMINAL 42 43 /* dumb terminal emulator */ 44 45 static sc_term_init_t dumb_init; 46 static sc_term_term_t dumb_term; 47 static sc_term_puts_t dumb_puts; 48 static sc_term_ioctl_t dumb_ioctl; 49 static sc_term_clear_t dumb_clear; 50 static sc_term_input_t dumb_input; 51 static void dumb_nop(void); 52 53 static sc_term_sw_t sc_term_dumb = { 54 { NULL, NULL }, 55 "dumb", /* emulator name */ 56 "dumb terminal", /* description */ 57 "*", /* matching renderer */ 58 0, /* softc size */ 59 0, 60 dumb_init, 61 dumb_term, 62 dumb_puts, 63 dumb_ioctl, 64 (sc_term_reset_t *)dumb_nop, 65 (sc_term_default_attr_t *)dumb_nop, 66 dumb_clear, 67 (sc_term_notify_t *)dumb_nop, 68 dumb_input, 69 }; 70 71 SCTERM_MODULE(dumb, sc_term_dumb); 72 73 static int 74 dumb_init(scr_stat *scp, void **softc, int code) 75 { 76 switch (code) { 77 case SC_TE_COLD_INIT: 78 ++sc_term_dumb.te_refcount; 79 break; 80 case SC_TE_WARM_INIT: 81 break; 82 } 83 return 0; 84 } 85 86 static int 87 dumb_term(scr_stat *scp, void **softc) 88 { 89 --sc_term_dumb.te_refcount; 90 return 0; 91 } 92 93 static void 94 dumb_puts(scr_stat *scp, u_char *buf, int len) 95 { 96 while (len > 0) { 97 ++scp->sc->write_in_progress; 98 sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8); 99 sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], 100 SC_NORM_ATTR << 8); 101 --scp->sc->write_in_progress; 102 } 103 } 104 105 static int 106 dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data, 107 int flag, struct proc *p) 108 { 109 vid_info_t *vi; 110 111 switch (cmd) { 112 case GIO_ATTR: /* get current attributes */ 113 *(int*)data = SC_NORM_ATTR; 114 return 0; 115 case CONS_GETINFO: /* get current (virtual) console info */ 116 vi = (vid_info_t *)data; 117 if (vi->size != sizeof(struct vid_info)) 118 return EINVAL; 119 vi->mv_norm.fore = SC_NORM_ATTR & 0x0f; 120 vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f; 121 vi->mv_rev.fore = SC_NORM_ATTR & 0x0f; 122 vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f; 123 /* 124 * The other fields are filled by the upper routine. XXX 125 */ 126 return ENOIOCTL; 127 } 128 return ENOIOCTL; 129 } 130 131 static void 132 dumb_clear(scr_stat *scp) 133 { 134 sc_move_cursor(scp, 0, 0); 135 sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8); 136 mark_all(scp); 137 } 138 139 static int 140 dumb_input(scr_stat *scp, int c, struct tty *tp) 141 { 142 return FALSE; 143 } 144 145 static void 146 dumb_nop(void) 147 { 148 /* nothing */ 149 } 150 151 #endif /* SC_DUMB_TERMINAL */ 152