blob: df4877ecb0264139bba3c550004a4050e4be7033 (
plain) (
blame)
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
|
/*
* This file contains the hardware specific portions of the TTY driver
* for the serial ports on the csb350.
*
* Logic based on the jmr3904-io.c file in newlib 1.8.2
*
* COPYRIGHT (c) 1989-2000.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <libcpu/au1x00.h>
/*
* console_initialize_hardware
*
* This routine initializes the console hardware.
*
*/
void console_initialize_hardware(void)
{
uart0->fifoctrl = 0xf1; /* enable fifo, max sizes */
au_sync();
}
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
char ch
)
{
/* wait for the fifo to make room */
while ((uart0->linestat & 0x20) == 0) {
continue;
}
uart0->txdata = ch;
au_sync();
}
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking(
int port
)
{
unsigned char c;
if (uart0->linestat & 1) {
c = (char)uart0->rxdata;
return c;
} else {
return -1;
}
}
#include <rtems/bspIo.h>
void csb250_output_char(char c)
{
console_outbyte_polled( 0, c );
if (c == '\n') {
console_outbyte_polled( 0, '\r' );
}
}
int csb250_get_char(void)
{
return console_inbyte_nonblocking(0);
}
BSP_output_char_function_type BSP_output_char = csb250_output_char;
BSP_polling_getchar_function_type BSP_poll_char = csb250_get_char;
|
