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
dumb_init(scr_stat * scp,void ** softc,int code)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
dumb_term(scr_stat * scp,void ** softc)88 dumb_term(scr_stat *scp, void **softc)
89 {
90 --sc_term_dumb.te_refcount;
91 return 0;
92 }
93
94 static void
dumb_puts(scr_stat * scp,u_char * buf,int len)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
dumb_ioctl(scr_stat * scp,struct tty * tp,u_long cmd,caddr_t data,int flag)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
dumb_clear(scr_stat * scp)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
dumb_input(scr_stat * scp,int c,struct tty * tp)141 dumb_input(scr_stat *scp, int c, struct tty *tp)
142 {
143 return FALSE;
144 }
145
146 static void
dumb_nop(void)147 dumb_nop(void)
148 {
149 /* nothing */
150 }
151
152 #endif /* SC_DUMB_TERMINAL */
153