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File indexing completed on 2025-05-11 08:23:47
0001 /* SPDX-License-Identifier: BSD-2-Clause */ 0002 0003 /* 0004 * COPYRIGHT (c) 1989-1997. 0005 * On-Line Applications Research Corporation (OAR). 0006 * 0007 * Redistribution and use in source and binary forms, with or without 0008 * modification, are permitted provided that the following conditions 0009 * are met: 0010 * 1. Redistributions of source code must retain the above copyright 0011 * notice, this list of conditions and the following disclaimer. 0012 * 2. Redistributions in binary form must reproduce the above copyright 0013 * notice, this list of conditions and the following disclaimer in the 0014 * documentation and/or other materials provided with the distribution. 0015 * 0016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 0017 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 0018 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 0019 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 0020 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 0021 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 0022 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 0023 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 0024 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 0025 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 0026 * POSSIBILITY OF SUCH DAMAGE. 0027 */ 0028 0029 #include <termios.h> 0030 0031 #include <rtems/console.h> 0032 #include <rtems/libio.h> 0033 #include <bsp.h> 0034 #include "sci.h" 0035 0036 /* 0037 * console_open 0038 * 0039 * open a port as a termios console. 0040 */ 0041 rtems_device_driver console_open( 0042 rtems_device_major_number major, 0043 rtems_device_minor_number minor, 0044 void * arg 0045 ) 0046 { 0047 rtems_status_code status; 0048 0049 /* the console is opened three times at startup */ 0050 /* for standard input, output, and error */ 0051 0052 /* Get correct callback structure for the device */ 0053 0054 /* argument of FALSE gives us interrupt driven serial io */ 0055 /* argument of TRUE gives us polling based serial io */ 0056 0057 /* SCI internal uart */ 0058 0059 status = rtems_termios_open( major, minor, arg, SciGetTermiosHandlers( FALSE ) ); 0060 0061 return status; 0062 } 0063 0064 /* 0065 * console_close 0066 * 0067 * This routine closes a port that has been opened as console. 0068 */ 0069 rtems_device_driver console_close( 0070 rtems_device_major_number major, 0071 rtems_device_minor_number minor, 0072 void * arg 0073 ) 0074 { 0075 return rtems_termios_close (arg); 0076 } 0077 0078 /* 0079 * console_read 0080 * 0081 * This routine uses the termios driver to read a character. 0082 */ 0083 rtems_device_driver console_read( 0084 rtems_device_major_number major, 0085 rtems_device_minor_number minor, 0086 void * arg 0087 ) 0088 { 0089 return rtems_termios_read (arg); 0090 } 0091 0092 /* 0093 * console_write 0094 * 0095 * this routine uses the termios driver to write a character. 0096 */ 0097 rtems_device_driver console_write( 0098 rtems_device_major_number major, 0099 rtems_device_minor_number minor, 0100 void * arg 0101 ) 0102 { 0103 return rtems_termios_write (arg); 0104 } 0105 0106 /* 0107 * console_control 0108 * 0109 * this routine uses the termios driver to process io 0110 */ 0111 0112 rtems_device_driver console_control( 0113 rtems_device_major_number major, 0114 rtems_device_minor_number minor, 0115 void * arg 0116 ) 0117 { 0118 return rtems_termios_ioctl (arg); 0119 } 0120 0121 /* 0122 * console_initialize 0123 * 0124 * Routine called to initialize the console device driver. 0125 */ 0126 rtems_device_driver console_initialize( 0127 rtems_device_major_number major, 0128 rtems_device_minor_number minor_arg, 0129 void *arg 0130 ) 0131 { 0132 rtems_status_code status; 0133 0134 /* 0135 * initialize the termio interface. 0136 */ 0137 rtems_termios_initialize(); 0138 0139 /* 0140 * register the SCI device name for termios 0141 * do this over in the sci driver init routine? 0142 */ 0143 0144 status = rtems_io_register_name( "/dev/sci", major, 0 ); 0145 0146 if (status != RTEMS_SUCCESSFUL) 0147 { 0148 rtems_fatal_error_occurred(status); 0149 } 0150 0151 /* 0152 * Link the uart device to the console device 0153 */ 0154 0155 #if 1 0156 status = rtems_io_register_name( "/dev/console", major, 0 ); 0157 0158 if (status != RTEMS_SUCCESSFUL) 0159 { 0160 rtems_fatal_error_occurred(status); 0161 } 0162 #else 0163 if ( link( "/dev/sci", "/dev/console") < 0 ) 0164 { 0165 rtems_fatal_error_occurred( RTEMS_IO_ERROR ); 0166 } 0167 #endif 0168 0169 /* 0170 * Console Initialize Succesful 0171 */ 0172 0173 return RTEMS_SUCCESSFUL; 0174 }
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