1 /*-
2 * Copyright (C) 2014 Nathan Whitehorn
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.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
28
29 #include <sys/types.h>
30 #include "bootstrap.h"
31 #include "host_syscall.h"
32
33 static void hostcons_probe(struct console *cp);
34 static int hostcons_init(int arg);
35 static void hostcons_putchar(int c);
36 static int hostcons_getchar();
37 static int hostcons_poll();
38
39 struct console hostconsole = {
40 "host",
41 "Host Console",
42 0,
43 hostcons_probe,
44 hostcons_init,
45 hostcons_putchar,
46 hostcons_getchar,
47 hostcons_poll,
48 };
49
50 static void
hostcons_probe(struct console * cp)51 hostcons_probe(struct console *cp)
52 {
53
54 cp->c_flags |= C_PRESENTIN|C_PRESENTOUT;
55 }
56
57 static int
hostcons_init(int arg)58 hostcons_init(int arg)
59 {
60
61 /* XXX: set nonblocking */
62 /* tcsetattr(~(ICANON | ECHO)) */
63
64 return (0);
65 }
66
67 static void
hostcons_putchar(int c)68 hostcons_putchar(int c)
69 {
70 uint8_t ch = c;
71
72 host_write(1, &ch, 1);
73 }
74
75 static int
hostcons_getchar()76 hostcons_getchar()
77 {
78 uint8_t ch;
79 int rv;
80
81 rv = host_read(0, &ch, 1);
82 if (rv == 1)
83 return (ch);
84 return (-1);
85 }
86
87 static int
hostcons_poll()88 hostcons_poll()
89 {
90 struct host_timeval tv = {0,0};
91 long fds = 1 << 0;
92 int ret;
93
94 ret = host_select(32, &fds, NULL, NULL, &tv);
95 return (ret > 0);
96 }
97
98