2 * Copyright (c) 2011 Google, Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 #include "bootstrap.h"
32 #include "libuserboot.h"
36 static struct console *userboot_comconsp;
38 static void userboot_cons_probe(struct console *cp);
39 static int userboot_cons_init(int);
40 static void userboot_comcons_probe(struct console *cp);
41 static int userboot_comcons_init(int);
42 static void userboot_cons_putchar(int);
43 static int userboot_cons_getchar(void);
44 static int userboot_cons_poll(void);
46 struct console userboot_console = {
52 userboot_cons_putchar,
53 userboot_cons_getchar,
58 * Provide a simple alias to allow loader scripts to set the
59 * console to comconsole without resulting in an error
61 struct console userboot_comconsole = {
65 userboot_comcons_probe,
66 userboot_comcons_init,
67 userboot_cons_putchar,
68 userboot_cons_getchar,
73 userboot_cons_probe(struct console *cp)
76 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
80 userboot_cons_init(int arg)
87 userboot_comcons_probe(struct console *cp)
91 * Save the console pointer so the comcons_init routine
92 * can set the C_PRESENT* flags. They are not set
93 * here to allow the existing userboot console to
94 * be elected the default.
96 userboot_comconsp = cp;
100 userboot_comcons_init(int arg)
104 * Set the C_PRESENT* flags to allow the comconsole
105 * to be selected as the active console
107 userboot_comconsp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
112 userboot_cons_putchar(int c)
119 userboot_cons_getchar()
122 return (CALLBACK(getc));
129 return (CALLBACK(poll));