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
dumb_init(scr_stat * scp,void ** softc,int code)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
dumb_term(scr_stat * scp,void ** softc)93 dumb_term(scr_stat *scp, void **softc)
94 {
95 --sc_term_dumb.te_refcount;
96 return 0;
97 }
98
99 static void
dumb_puts(scr_stat * scp,u_char * buf,int len)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
dumb_ioctl(scr_stat * scp,struct tty * tp,u_long cmd,caddr_t data,struct thread * td)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
dumb_clear(scr_stat * scp)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
dumb_input(scr_stat * scp,int c,struct tty * tp)146 dumb_input(scr_stat *scp, int c, struct tty *tp)
147 {
148 return FALSE;
149 }
150
151 static const char *
dumb_fkeystr(scr_stat * scp,int c)152 dumb_fkeystr(scr_stat *scp, int c)
153 {
154 return (NULL);
155 }
156
157 static void
dumb_sync(scr_stat * scp)158 dumb_sync(scr_stat *scp)
159 {
160 }
161
162 static void
dumb_nop(void)163 dumb_nop(void)
164 {
165 /* nothing */
166 }
167