OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [sh/] [shared/] [console.c] - Blame information for rev 173

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback 
/*
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 
 *  Copyright assigned to U.S. Government, 1994.
24 
 *
25 
 *  The license and distribution terms for this file may be
26 
 *  found in the file LICENSE in this distribution or at
27 
 *  http://www.OARcorp.com/rtems/license.html.
28 
 *
29 
 *  $Id: console.c,v 1.2 2001-09-27 12:01:12 chris Exp $
30 
 */
31 
 
32 
#include <bsp.h>
33 
#include <rtems.h>
34 
#include <rtems/libio.h>
35 
#include <iosupp.h>
36 
 
37 
#ifndef BSP_CONSOLE_DEVNAME
38 
#error Missing BSP_CONSOLE_DEVNAME
39 
#endif
40 
 
41 
static rtems_driver_name_t *low_level_device_info = NULL ;
42 
 
43 
/*  console_initialize
44 
 *
45 
 *  This routine initializes the console IO driver.
46 
 *
47 
 *  Input parameters: NONE
48 
 *
49 
 *  Output parameters:  NONE
50 
 *
51 
 *  Return values:
52 
 */
53 
 
54 
rtems_device_driver console_initialize(
55 
  rtems_device_major_number  major,
56 
  rtems_device_minor_number  minor,
57 
  void                      *arg
58 
)
59 
{
60 
  rtems_device_driver status ;
61 
 
62 
  status = rtems_io_register_name(
63 
    "/dev/console",
64 
    major,
65 
    (rtems_device_minor_number) 0
66 
  );
67 
 
68 
  if (status != RTEMS_SUCCESSFUL)
69 
    rtems_fatal_error_occurred(status);
70 
 
71 
  status = rtems_io_lookup_name( BSP_CONSOLE_DEVNAME,
72 
    &low_level_device_info );
73 
  if (status != RTEMS_SUCCESSFUL)
74 
    rtems_fatal_error_occurred(status);
75 
 
76 
  return RTEMS_SUCCESSFUL;
77 
}
78 
 
79 
 
80 
/*
81 
 *  Open entry point
82 
 */
83 
 
84 
rtems_device_driver console_open(
85 
  rtems_device_major_number major,
86 
  rtems_device_minor_number minor,
87 
  void                    * arg
88 
)
89 
{
90 
  return rtems_io_open( low_level_device_info->major,
91 
    low_level_device_info->minor,
92 
    arg );
93 
}
94 
 
95 
/*
96 
 *  Close entry point
97 
 */
98 
 
99 
rtems_device_driver console_close(
100 
  rtems_device_major_number major,
101 
  rtems_device_minor_number minor,
102 
  void                    * arg
103 
)
104 
{
105 
  return rtems_io_close( low_level_device_info->major,
106 
    low_level_device_info->minor,
107 
    arg );
108 
}
109 
 
110 
/*
111 
 * read bytes from the serial port. We only have stdin.
112 
 */
113 
 
114 
rtems_device_driver console_read(
115 
  rtems_device_major_number major,
116 
  rtems_device_minor_number minor,
117 
  void                    * arg
118 
)
119 
{
120 
  return rtems_io_read( low_level_device_info->major,
121 
    low_level_device_info->minor,
122 
    arg );
123 
}
124 
 
125 
/*
126 
 * write bytes to the serial port. Stdout and stderr are the same.
127 
 */
128 
 
129 
rtems_device_driver console_write(
130 
  rtems_device_major_number major,
131 
  rtems_device_minor_number minor,
132 
  void                    * arg
133 
)
134 
{
135 
  return rtems_io_write( low_level_device_info->major,
136 
    low_level_device_info->minor,
137 
    arg );
138 
}
139 
 
140 
/*
141 
 *  IO Control entry point
142 
 */
143 
 
144 
rtems_device_driver console_control(
145 
  rtems_device_major_number major,
146 
  rtems_device_minor_number minor,
147 
  void                    * arg
148 
)
149 
{
150 
  return rtems_io_control( low_level_device_info->major,
151 
    low_level_device_info->minor,
152 
    arg );
153 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.