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