source: SVN/rincon/u-boot/board/amirix/ap1000/serial.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.2 KB
Line 
1/*
2 * (C) Copyright 2002
3 * Peter De Schrijver (p2@mind.be), Mind Linux Solutions, NV.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18 * MA 02111-1307 USA
19 *
20 */
21
22#include <common.h>
23#include <asm/u-boot.h>
24#include <asm/processor.h>
25#include <command.h>
26#include <config.h>
27
28#include <ns16550.h>
29
30DECLARE_GLOBAL_DATA_PTR;
31
32const NS16550_t COM_PORTS[] =
33        { (NS16550_t) CFG_NS16550_COM1, (NS16550_t) CFG_NS16550_COM2 };
34
35#undef CFG_DUART_CHAN
36#define CFG_DUART_CHAN gComPort
37static int gComPort = 0;
38
39int serial_init (void)
40{
41        int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
42
43        (void) NS16550_init (COM_PORTS[0], clock_divisor);
44        gComPort = 0;
45
46        return 0;
47}
48
49void serial_putc (const char c)
50{
51        if (c == '\n') {
52                NS16550_putc (COM_PORTS[CFG_DUART_CHAN], '\r');
53        }
54
55        NS16550_putc (COM_PORTS[CFG_DUART_CHAN], c);
56}
57
58int serial_getc (void)
59{
60        return NS16550_getc (COM_PORTS[CFG_DUART_CHAN]);
61}
62
63int serial_tstc (void)
64{
65        return NS16550_tstc (COM_PORTS[CFG_DUART_CHAN]);
66}
67
68void serial_setbrg (void)
69{
70        int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
71
72#ifdef CFG_INIT_CHAN1
73        NS16550_reinit (COM_PORTS[0], clock_divisor);
74#endif
75#ifdef CFG_INIT_CHAN2
76        NS16550_reinit (COM_PORTS[1], clock_divisor);
77#endif
78}
79
80void serial_puts (const char *s)
81{
82        while (*s) {
83                serial_putc (*s++);
84        }
85}
86
87#if defined(CONFIG_CMD_KGDB)
88void kgdb_serial_init (void)
89{
90}
91
92void putDebugChar (int c)
93{
94        serial_putc (c);
95}
96
97void putDebugStr (const char *str)
98{
99        serial_puts (str);
100}
101
102int getDebugChar (void)
103{
104        return serial_getc ();
105}
106
107void kgdb_interruptible (int yes)
108{
109        return;
110}
111#endif
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