1 | /* |
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2 | * COPYRIGHT (c) 1989-1997. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #include <termios.h> |
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11 | |
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12 | #include <rtems/console.h> |
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13 | #include <rtems/libio.h> |
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14 | #include <bsp.h> |
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15 | #include "sci.h" |
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16 | |
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17 | /* |
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18 | * console_open |
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19 | * |
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20 | * open a port as a termios console. |
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21 | */ |
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22 | rtems_device_driver console_open( |
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23 | rtems_device_major_number major, |
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24 | rtems_device_minor_number minor, |
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25 | void * arg |
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26 | ) |
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27 | { |
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28 | rtems_status_code status; |
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29 | |
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30 | /* the console is opened three times at startup */ |
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31 | /* for standard input, output, and error */ |
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32 | |
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33 | /* Get correct callback structure for the device */ |
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34 | |
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35 | /* argument of FALSE gives us interrupt driven serial io */ |
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36 | /* argument of TRUE gives us polling based serial io */ |
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37 | |
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38 | /* SCI internal uart */ |
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39 | |
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40 | status = rtems_termios_open( major, minor, arg, SciGetTermiosHandlers( FALSE ) ); |
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41 | |
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42 | return status; |
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43 | } |
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44 | |
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45 | /* |
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46 | * console_close |
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47 | * |
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48 | * This routine closes a port that has been opened as console. |
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49 | */ |
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50 | rtems_device_driver console_close( |
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51 | rtems_device_major_number major, |
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52 | rtems_device_minor_number minor, |
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53 | void * arg |
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54 | ) |
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55 | { |
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56 | return rtems_termios_close (arg); |
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57 | } |
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58 | |
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59 | /* |
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60 | * console_read |
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61 | * |
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62 | * This routine uses the termios driver to read a character. |
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63 | */ |
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64 | rtems_device_driver console_read( |
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65 | rtems_device_major_number major, |
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66 | rtems_device_minor_number minor, |
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67 | void * arg |
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68 | ) |
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69 | { |
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70 | return rtems_termios_read (arg); |
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71 | } |
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72 | |
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73 | /* |
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74 | * console_write |
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75 | * |
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76 | * this routine uses the termios driver to write a character. |
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77 | */ |
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78 | rtems_device_driver console_write( |
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79 | rtems_device_major_number major, |
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80 | rtems_device_minor_number minor, |
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81 | void * arg |
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82 | ) |
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83 | { |
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84 | return rtems_termios_write (arg); |
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85 | } |
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86 | |
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87 | /* |
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88 | * console_control |
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89 | * |
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90 | * this routine uses the termios driver to process io |
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91 | */ |
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92 | |
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93 | rtems_device_driver console_control( |
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94 | rtems_device_major_number major, |
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95 | rtems_device_minor_number minor, |
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96 | void * arg |
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97 | ) |
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98 | { |
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99 | return rtems_termios_ioctl (arg); |
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100 | } |
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101 | |
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102 | /* |
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103 | * console_initialize |
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104 | * |
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105 | * Routine called to initialize the console device driver. |
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106 | */ |
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107 | rtems_device_driver console_initialize( |
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108 | rtems_device_major_number major, |
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109 | rtems_device_minor_number minor_arg, |
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110 | void *arg |
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111 | ) |
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112 | { |
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113 | rtems_status_code status; |
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114 | |
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115 | /* |
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116 | * initialize the termio interface. |
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117 | */ |
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118 | rtems_termios_initialize(); |
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119 | |
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120 | /* |
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121 | * register the SCI device name for termios |
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122 | * do this over in the sci driver init routine? |
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123 | */ |
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124 | |
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125 | status = rtems_io_register_name( "/dev/sci", major, 0 ); |
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126 | |
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127 | if (status != RTEMS_SUCCESSFUL) |
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128 | { |
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129 | rtems_fatal_error_occurred(status); |
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130 | } |
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131 | |
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132 | /* |
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133 | * Link the uart device to the console device |
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134 | */ |
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135 | |
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136 | #if 1 |
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137 | status = rtems_io_register_name( "/dev/console", major, 0 ); |
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138 | |
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139 | if (status != RTEMS_SUCCESSFUL) |
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140 | { |
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141 | rtems_fatal_error_occurred(status); |
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142 | } |
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143 | #else |
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144 | if ( link( "/dev/sci", "/dev/console") < 0 ) |
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145 | { |
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146 | rtems_fatal_error_occurred( RTEMS_IO_ERROR ); |
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147 | } |
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148 | #endif |
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149 | |
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150 | /* |
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151 | * Console Initialize Succesful |
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152 | */ |
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153 | |
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154 | return RTEMS_SUCCESSFUL; |
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155 | } |
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