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 #include "opt_syscons.h" 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <sys/consio.h> 35 36 #if defined(__arm__) || defined(__powerpc__) 37 #include <machine/sc_machdep.h> 38 #else 39 #include <machine/pc/display.h> 40 #endif 41 42 #include <dev/syscons/syscons.h> 43 #include <dev/syscons/sctermvar.h> 44 45 /* dumb terminal emulator */ 46 47 static sc_term_init_t dumb_init; 48 static sc_term_term_t dumb_term; 49 static sc_term_puts_t dumb_puts; 50 static sc_term_ioctl_t dumb_ioctl; 51 static sc_term_clear_t dumb_clear; 52 static sc_term_input_t dumb_input; 53 static void dumb_nop(void); 54 static sc_term_fkeystr_t dumb_fkeystr; 55 static sc_term_sync_t dumb_sync; 56 57 static sc_term_sw_t sc_term_dumb = { 58 { NULL, NULL }, 59 "dumb", /* emulator name */ 60 "dumb terminal", /* description */ 61 "*", /* matching renderer */ 62 0, /* softc size */ 63 0, 64 dumb_init, 65 dumb_term, 66 dumb_puts, 67 dumb_ioctl, 68 (sc_term_reset_t *)dumb_nop, 69 (sc_term_default_attr_t *)dumb_nop, 70 dumb_clear, 71 (sc_term_notify_t *)dumb_nop, 72 dumb_input, 73 dumb_fkeystr, 74 dumb_sync, 75 }; 76 77 SCTERM_MODULE(dumb, sc_term_dumb); 78 79 static int 80 dumb_init(scr_stat *scp, void **softc, int code) 81 { 82 switch (code) { 83 case SC_TE_COLD_INIT: 84 ++sc_term_dumb.te_refcount; 85 break; 86 case SC_TE_WARM_INIT: 87 break; 88 } 89 return 0; 90 } 91 92 static int 93 dumb_term(scr_stat *scp, void **softc) 94 { 95 --sc_term_dumb.te_refcount; 96 return 0; 97 } 98 99 static void 100 dumb_puts(scr_stat *scp, u_char *buf, int len) 101 { 102 while (len > 0) { 103 ++scp->sc->write_in_progress; 104 sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8); 105 sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], 106 SC_NORM_ATTR << 8); 107 --scp->sc->write_in_progress; 108 } 109 } 110 111 static int 112 dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data, 113 struct thread *td) 114 { 115 vid_info_t *vi; 116 117 switch (cmd) { 118 case GIO_ATTR: /* get current attributes */ 119 *(int*)data = SC_NORM_ATTR; 120 return 0; 121 case CONS_GETINFO: /* get current (virtual) console info */ 122 vi = (vid_info_t *)data; 123 if (vi->size != sizeof(struct vid_info)) 124 return EINVAL; 125 vi->mv_norm.fore = SC_NORM_ATTR & 0x0f; 126 vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f; 127 vi->mv_rev.fore = SC_NORM_ATTR & 0x0f; 128 vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f; 129 /* 130 * The other fields are filled by the upper routine. XXX 131 */ 132 return ENOIOCTL; 133 } 134 return ENOIOCTL; 135 } 136 137 static void 138 dumb_clear(scr_stat *scp) 139 { 140 sc_move_cursor(scp, 0, 0); 141 sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8); 142 mark_all(scp); 143 } 144 145 static int 146 dumb_input(scr_stat *scp, int c, struct tty *tp) 147 { 148 return FALSE; 149 } 150 151 static const char * 152 dumb_fkeystr(scr_stat *scp, int c) 153 { 154 return (NULL); 155 } 156 157 static void 158 dumb_sync(scr_stat *scp) 159 { 160 } 161 162 static void 163 dumb_nop(void) 164 { 165 /* nothing */ 166 } 167