1 /*-
2 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
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 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
24 * SUCH DAMAGE.
25 */
26
27 #include <stand.h>
28 #include "bootstrap.h"
29 #include "glue.h"
30
31 int console;
32
33 static void uboot_cons_probe(struct console *cp);
34 static int uboot_cons_init(int);
35 static void uboot_cons_putchar(int);
36 static int uboot_cons_getchar(void);
37 static int uboot_cons_poll(void);
38
39 struct console uboot_console = {
40 .c_name = "uboot",
41 .c_desc = "U-Boot console",
42 .c_probe = uboot_cons_probe,
43 .c_init = uboot_cons_init,
44 .c_out = uboot_cons_putchar,
45 .c_in = uboot_cons_getchar,
46 .c_ready = uboot_cons_poll,
47 };
48
49 static void
uboot_cons_probe(struct console * cp)50 uboot_cons_probe(struct console *cp)
51 {
52
53 cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
54 }
55
56 static int
uboot_cons_init(int arg)57 uboot_cons_init(int arg)
58 {
59
60 return (0);
61 }
62
63 static void
uboot_cons_putchar(int c)64 uboot_cons_putchar(int c)
65 {
66
67 if (c == '\n')
68 ub_putc('\r');
69
70 ub_putc(c);
71 }
72
73 static int
uboot_cons_getchar(void)74 uboot_cons_getchar(void)
75 {
76
77 return (ub_getc());
78 }
79
80 static int
uboot_cons_poll(void)81 uboot_cons_poll(void)
82 {
83
84 return (ub_tstc());
85 }
86