1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
* (C) Copyright 2000
* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#ifdef CFG_NS16550_SERIAL
#include <ns16550.h>
#ifdef CFG_NS87308
#include <ns87308.h>
#endif
#if CONFIG_CONS_INDEX == 1
static NS16550_t console = (NS16550_t) CFG_NS16550_COM1;
#elif CONFIG_CONS_INDEX == 2
static NS16550_t console = (NS16550_t) CFG_NS16550_COM2;
#elif CONFIG_CONS_INDEX == 3
static NS16550_t console = (NS16550_t) CFG_NS16550_COM3;
#elif CONFIG_CONS_INDEX == 4
static NS16550_t console = (NS16550_t) CFG_NS16550_COM4;
#else
#error no valid console defined
#endif
int serial_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
#ifdef CFG_NS87308
initialise_ns87308();
#endif
NS16550_init(console, clock_divisor);
return (0);
}
void
serial_putc(const char c)
{
if (c == '\n')
NS16550_putc(console, '\r');
NS16550_putc(console, c);
}
void
serial_puts (const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
int
serial_getc(void)
{
return NS16550_getc(console);
}
int
serial_tstc(void)
{
return NS16550_tstc(console);
}
void
serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
NS16550_reinit(console, clock_divisor);
}
#endif
|
