console.c revision 178173 
1/* $NetBSD: uart.c,v 1.2 2007/03/23 20:05:47 dogcow Exp $ */
2
3/*-
4 * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
9 * conditions are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above
13 *    copyright notice, this list of conditions and the following
14 *    disclaimer in the documentation and/or other materials provided
15 *    with the distribution.
16 * 3. The names of the authors may not be used to endorse or promote
17 *    products derived from this software without specific prior
18 *    written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
27 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
29 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31 * OF SUCH DAMAGE.
32 *
33 */
34
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD: head/sys/mips/mips32/adm5120/console.c 178173 2008-04-13 07:44:55Z imp $");
37
38#include <sys/types.h>
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/time.h>
43
44#include <sys/cons.h>
45#include <sys/consio.h>
46
47static cn_probe_t	uart_cnprobe;
48static cn_init_t	uart_cninit;
49static cn_term_t	uart_cnterm;
50static cn_getc_t	uart_cngetc;
51static cn_putc_t	uart_cnputc;
52
53static void
54uart_cnprobe(struct consdev *cp)
55{
56
57        sprintf(cp->cn_name, "uart");
58        cp->cn_pri = CN_NORMAL;
59}
60
61static void
62uart_cninit(struct consdev *cp)
63{
64
65}
66
67
68void
69uart_cnputc(struct consdev *cp, int c)
70{
71	char chr;
72
73	chr = c;
74	while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
75	(*((volatile unsigned long *)0xb2600000)) = c;
76	while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
77}
78
79int
80uart_cngetc(struct consdev * cp)
81{
82
83	while ((*((volatile unsigned long *)0xb2600018)) & 0x10) ;
84	return (*((volatile unsigned long *)0xb2600000)) & 0xff;
85}
86
87static void
88uart_cnterm(struct consdev * cp)
89{
90
91}
92
93CONSOLE_DRIVER(uart);
94