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Create releng/7.2 from stable/7 in preparation for 7.2-RELEASE.
[FreeBSD/releng/7.2.git] / sys / dev / syscons / scterm-dumb.c
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/consio.h>
35
36 #if defined(__sparc64__) || 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 #ifdef SC_DUMB_TERMINAL
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
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 };
74
75 SCTERM_MODULE(dumb, sc_term_dumb);
76
77 static int
78 dumb_init(scr_stat *scp, void **softc, int code)
79 {
80         switch (code) {
81         case SC_TE_COLD_INIT:
82                 ++sc_term_dumb.te_refcount;
83                 break;
84         case SC_TE_WARM_INIT:
85                 break;
86         }
87         return 0;
88 }
89
90 static int
91 dumb_term(scr_stat *scp, void **softc)
92 {
93         --sc_term_dumb.te_refcount;
94         return 0;
95 }
96
97 static void
98 dumb_puts(scr_stat *scp, u_char *buf, int len)
99 {
100         while (len > 0) {
101                 ++scp->sc->write_in_progress;
102                 sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8);
103                 sc_term_gen_scroll(scp, scp->sc->scr_map[0x20],
104                                    SC_NORM_ATTR << 8);
105                 --scp->sc->write_in_progress;
106         }
107 }
108
109 static int
110 dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
111            int flag, struct proc *p)
112 {
113         vid_info_t *vi;
114
115         switch (cmd) {
116         case GIO_ATTR:          /* get current attributes */
117                 *(int*)data = SC_NORM_ATTR;
118                 return 0;
119         case CONS_GETINFO:      /* get current (virtual) console info */
120                 vi = (vid_info_t *)data;
121                 if (vi->size != sizeof(struct vid_info))
122                         return EINVAL;
123                 vi->mv_norm.fore = SC_NORM_ATTR & 0x0f;
124                 vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f;
125                 vi->mv_rev.fore = SC_NORM_ATTR & 0x0f;
126                 vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f;
127                 /*
128                  * The other fields are filled by the upper routine. XXX
129                  */
130                 return ENOIOCTL;
131         }
132         return ENOIOCTL;
133 }
134
135 static void
136 dumb_clear(scr_stat *scp)
137 {
138         sc_move_cursor(scp, 0, 0);
139         sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8);
140         mark_all(scp);
141 }
142
143 static int
144 dumb_input(scr_stat *scp, int c, struct tty *tp)
145 {
146         return FALSE;
147 }
148
149 static void
150 dumb_nop(void)
151 {
152         /* nothing */
153 }
154
155 #endif /* SC_DUMB_TERMINAL */