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 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 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/module.h> 36 #include <sys/consio.h> 37 38 #if defined(__arm__) || defined(__mips__) || defined(__powerpc__) 39 #include <machine/sc_machdep.h> 40 #else 41 #include <machine/pc/display.h> 42 #endif 43 44 #include <dev/syscons/syscons.h> 45 #include <dev/syscons/sctermvar.h> 46 47 /* dumb terminal emulator */ 48 49 static sc_term_init_t dumb_init; 50 static sc_term_term_t dumb_term; 51 static sc_term_puts_t dumb_puts; 52 static sc_term_ioctl_t dumb_ioctl; 53 static sc_term_clear_t dumb_clear; 54 static sc_term_input_t dumb_input; 55 static void dumb_nop(void); 56 static sc_term_fkeystr_t dumb_fkeystr; 57 static sc_term_sync_t dumb_sync; 58 59 static sc_term_sw_t sc_term_dumb = { 60 { NULL, NULL }, 61 "dumb", /* emulator name */ 62 "dumb terminal", /* description */ 63 "*", /* matching renderer */ 64 0, /* softc size */ 65 0, 66 dumb_init, 67 dumb_term, 68 dumb_puts, 69 dumb_ioctl, 70 (sc_term_reset_t *)dumb_nop, 71 (sc_term_default_attr_t *)dumb_nop, 72 dumb_clear, 73 (sc_term_notify_t *)dumb_nop, 74 dumb_input, 75 dumb_fkeystr, 76 dumb_sync, 77 }; 78 79 SCTERM_MODULE(dumb, sc_term_dumb); 80 81 static int 82 dumb_init(scr_stat *scp, void **softc, int code) 83 { 84 switch (code) { 85 case SC_TE_COLD_INIT: 86 ++sc_term_dumb.te_refcount; 87 break; 88 case SC_TE_WARM_INIT: 89 break; 90 } 91 return 0; 92 } 93 94 static int 95 dumb_term(scr_stat *scp, void **softc) 96 { 97 --sc_term_dumb.te_refcount; 98 return 0; 99 } 100 101 static void 102 dumb_puts(scr_stat *scp, u_char *buf, int len) 103 { 104 while (len > 0) { 105 ++scp->sc->write_in_progress; 106 sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8); 107 sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], 108 SC_NORM_ATTR << 8); 109 --scp->sc->write_in_progress; 110 } 111 } 112 113 static int 114 dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data, 115 struct thread *td) 116 { 117 vid_info_t *vi; 118 119 switch (cmd) { 120 case GIO_ATTR: /* get current attributes */ 121 *(int*)data = SC_NORM_ATTR; 122 return 0; 123 case CONS_GETINFO: /* get current (virtual) console info */ 124 vi = (vid_info_t *)data; 125 if (vi->size != sizeof(struct vid_info)) 126 return EINVAL; 127 vi->mv_norm.fore = SC_NORM_ATTR & 0x0f; 128 vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f; 129 vi->mv_rev.fore = SC_NORM_ATTR & 0x0f; 130 vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f; 131 /* 132 * The other fields are filled by the upper routine. XXX 133 */ 134 return ENOIOCTL; 135 } 136 return ENOIOCTL; 137 } 138 139 static void 140 dumb_clear(scr_stat *scp) 141 { 142 sc_move_cursor(scp, 0, 0); 143 sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8); 144 mark_all(scp); 145 } 146 147 static int 148 dumb_input(scr_stat *scp, int c, struct tty *tp) 149 { 150 return FALSE; 151 } 152 153 static const char * 154 dumb_fkeystr(scr_stat *scp, int c) 155 { 156 return (NULL); 157 } 158 159 static void 160 dumb_sync(scr_stat *scp) 161 { 162 } 163 164 static void 165 dumb_nop(void) 166 { 167 /* nothing */ 168 } 169