source: rtems/c/src/lib/libbsp/sh/shared/console.c @ 10aec3b4

4.104.114.84.95
Last change on this file since 10aec3b4 was 10aec3b4, checked in by Joel Sherrill <joel.sherrill@…>, on Oct 12, 2001 at 9:05:11 PM

2001-10-12 Joel Sherrill <joel@…>

  • console.c, setvec.c: Fixed typo.
  • Property mode set to 100644
File size: 3.3 KB
Line 
1/*
2 * /dev/console for Hitachi SH 703X
3 *
4 * The SH doesn't have a designated console device. Therefore we "alias"
5 * another device as /dev/console and revector all calls to /dev/console
6 * to this device.
7 *
8 * This approach is similar to installing a sym-link from one device to
9 * another device. If rtems once will support sym-links for devices files,
10 * this implementation could be dropped.
11 *
12 *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
13 *
14 *  COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
15 *
16 *  This program is distributed in the hope that it will be useful,
17 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
18 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 *
20 *
21 *  COPYRIGHT (c) 1998.
22 *  On-Line Applications Research Corporation (OAR).
23 *
24 *  The license and distribution terms for this file may be
25 *  found in the file LICENSE in this distribution or at
26 *  http://www.OARcorp.com/rtems/license.html.
27 *
28 *  $Id$
29 */
30
31#include <bsp.h>
32#include <rtems.h>
33#include <rtems/libio.h>
34#include <iosupp.h>
35
36#ifndef BSP_CONSOLE_DEVNAME
37#error Missing BSP_CONSOLE_DEVNAME
38#endif
39
40static rtems_driver_name_t *low_level_device_info = NULL ;
41
42/*  console_initialize
43 *
44 *  This routine initializes the console IO driver.
45 *
46 *  Input parameters: NONE
47 *
48 *  Output parameters:  NONE
49 *
50 *  Return values:
51 */
52
53rtems_device_driver console_initialize(
54  rtems_device_major_number  major,
55  rtems_device_minor_number  minor,
56  void                      *arg
57)
58{
59  rtems_device_driver status ;
60 
61  status = rtems_io_register_name(
62    "/dev/console",
63    major,
64    (rtems_device_minor_number) 0
65  );
66
67  if (status != RTEMS_SUCCESSFUL)
68    rtems_fatal_error_occurred(status);
69
70  status = rtems_io_lookup_name( BSP_CONSOLE_DEVNAME, 
71    &low_level_device_info );
72  if (status != RTEMS_SUCCESSFUL)
73    rtems_fatal_error_occurred(status);
74
75  return RTEMS_SUCCESSFUL;
76}
77
78
79/*
80 *  Open entry point
81 */
82
83rtems_device_driver console_open(
84  rtems_device_major_number major,
85  rtems_device_minor_number minor,
86  void                    * arg
87)
88{
89  return rtems_io_open( low_level_device_info->major,
90    low_level_device_info->minor,
91    arg );
92}
93 
94/*
95 *  Close entry point
96 */
97
98rtems_device_driver console_close(
99  rtems_device_major_number major,
100  rtems_device_minor_number minor,
101  void                    * arg
102)
103{
104  return rtems_io_close( low_level_device_info->major,
105    low_level_device_info->minor,
106    arg );
107}
108
109/*
110 * read bytes from the serial port. We only have stdin.
111 */
112
113rtems_device_driver console_read(
114  rtems_device_major_number major,
115  rtems_device_minor_number minor,
116  void                    * arg
117)
118{
119  return rtems_io_read( low_level_device_info->major,
120    low_level_device_info->minor,
121    arg );
122}
123
124/*
125 * write bytes to the serial port. Stdout and stderr are the same.
126 */
127
128rtems_device_driver console_write(
129  rtems_device_major_number major,
130  rtems_device_minor_number minor,
131  void                    * arg
132)
133{
134  return rtems_io_write( low_level_device_info->major,
135    low_level_device_info->minor,
136    arg );
137}
138
139/*
140 *  IO Control entry point
141 */
142
143rtems_device_driver console_control(
144  rtems_device_major_number major,
145  rtems_device_minor_number minor,
146  void                    * arg
147)
148{
149  return rtems_io_control( low_level_device_info->major,
150    low_level_device_info->minor,
151    arg );
152}
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