source: rtems/c/src/lib/libbsp/avr/avrtest/console/console-io.c @ 6279149

4.115
Last change on this file since 6279149 was 6279149, checked in by Joel Sherrill <joel.sherrill@…>, on Oct 8, 2014 at 9:04:56 PM

Add console-polled.h and update all BSPs that should use it.

The file console-polled.h provides the prototypes for the three
required methods when implementing a single port polled console
driver. This paradigm is common on simulators and simple hardware.

+ Updated the BSPs Makefile.am to make console-polled.h available.
+ Regenerated the BSPs preinstall.sm.
+ Updated console support files to include <bsp/console-polled.h>.
+ Updated console support files to make printk() support method static.

  • Property mode set to 100644
File size: 1.3 KB
Line 
1/*
2 *  This file contains the hardware specific portions of the TTY driver
3 *  for the serial ports on the avr.
4 */
5
6/*
7 *  COPYRIGHT (c) 1989-2008.
8 *  On-Line Applications Research Corporation (OAR).
9 *
10 *  The license and distribution terms for this file may be
11 *  found in the file LICENSE in this distribution or at
12 *  http://www.rtems.org/license/LICENSE.
13 */
14
15#include <bsp.h>
16#include <bsp/console-polled.h>
17#include <rtems/libio.h>
18#include <stdlib.h>
19#include <assert.h>
20
21#define STDIO_PORT      0x52
22#define EXIT_PORT       0x4F
23#define ABORT_PORT      0x49
24
25/*
26 *  console_initialize_hardware
27 *
28 *  This routine initializes the console hardware.
29 *
30 */
31
32void console_initialize_hardware(void)
33{
34  return;
35}
36
37/*
38 *  console_outbyte_polled
39 *
40 *  This routine transmits a character using polling.
41 */
42void console_outbyte_polled(
43  int  port,
44  char ch
45)
46{
47  *((volatile unsigned char *) STDIO_PORT) = ch;
48}
49
50/*
51 *  console_inbyte_nonblocking
52 *
53 *  This routine polls for a character.
54 */
55
56int console_inbyte_nonblocking(
57  int port
58)
59{
60  return -1;
61}
62
63#include <rtems/bspIo.h>
64
65static void AVRsimBSP_output_char(char c) { console_outbyte_polled( 0, c ); }
66
67BSP_output_char_function_type           BSP_output_char = AVRsimBSP_output_char;
68BSP_polling_getchar_function_type       BSP_poll_char = NULL;
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