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: stable/9/sys/mips/adm5120/console.c 235405 2012-05-13 17:04:46Z avg $");
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
47 static cn_probe_t uart_cnprobe;
48 static cn_init_t uart_cninit;
49 static cn_term_t uart_cnterm;
50 static cn_getc_t uart_cngetc;
51 static cn_putc_t uart_cnputc;
52 static cn_grab_t uart_cngrab;
53 static cn_ungrab_t uart_cnungrab;
54
55 static void
uart_cnprobe(struct consdev * cp)56 uart_cnprobe(struct consdev *cp)
57 {
58
59 sprintf(cp->cn_name, "uart");
60 cp->cn_pri = CN_NORMAL;
61 }
62
63 static void
uart_cninit(struct consdev * cp)64 uart_cninit(struct consdev *cp)
65 {
66
67 }
68
69
70 void
uart_cnputc(struct consdev * cp,int c)71 uart_cnputc(struct consdev *cp, int c)
72 {
73 char chr;
74
75 chr = c;
76 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
77 (*((volatile unsigned long *)0xb2600000)) = c;
78 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
79 }
80
81 int
uart_cngetc(struct consdev * cp)82 uart_cngetc(struct consdev * cp)
83 {
84
85 while ((*((volatile unsigned long *)0xb2600018)) & 0x10) ;
86 return (*((volatile unsigned long *)0xb2600000)) & 0xff;
87 }
88
89 static void
uart_cnterm(struct consdev * cp)90 uart_cnterm(struct consdev * cp)
91 {
92
93 }
94
95 static void
uart_cngrab(struct consdev * cp)96 uart_cngrab(struct consdev *cp)
97 {
98
99 }
100
101 static void
uart_cnungrab(struct consdev * cp)102 uart_cnungrab(struct consdev *cp)
103 {
104
105 }
106
107 CONSOLE_DRIVER(uart);
108