[1f5cb74] | 1 | /* |
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| 2 | * This file contains the hardware specific portions of the TTY driver |
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| 3 | * for the serial ports on the erc32. |
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| 4 | * |
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| 5 | * COPYRIGHT (c) 1989-1997. |
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| 6 | * On-Line Applications Research Corporation (OAR). |
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| 7 | * Copyright assigned to U.S. Government, 1994. |
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| 8 | * |
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| 9 | * The license and distribution terms for this file may be |
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| 10 | * found in the file LICENSE in this distribution or at |
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| 11 | * http://www.OARcorp.com/rtems/license.html. |
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| 12 | * |
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| 13 | * $Id$ |
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| 14 | */ |
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| 15 | |
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| 16 | #include <bsp.h> |
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| 17 | #include <rtems/libio.h> |
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| 18 | #include <stdlib.h> |
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| 19 | #include <assert.h> |
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| 20 | |
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| 21 | /* external prototypes for monitor interface routines */ |
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| 22 | |
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| 23 | void console_outbyte_polled( |
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| 24 | int port, |
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| 25 | char ch |
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| 26 | ); |
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| 27 | |
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| 28 | int console_inbyte_nonblocking( |
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| 29 | int port |
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| 30 | ); |
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| 31 | |
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[e182c620] | 32 | void console_initialize_hardware(void); |
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| 33 | |
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[1f5cb74] | 34 | /* |
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| 35 | * Console Termios Support Entry Points |
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| 36 | * |
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| 37 | */ |
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| 38 | |
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| 39 | int console_write_support ( |
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| 40 | int minor, |
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| 41 | const char *bufarg, |
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| 42 | int len |
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| 43 | ) |
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| 44 | { |
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| 45 | int nwrite = 0; |
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| 46 | const char *buf = bufarg; |
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| 47 | |
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| 48 | while (nwrite < len) { |
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| 49 | console_outbyte_polled( minor, *buf++ ); |
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| 50 | nwrite++; |
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| 51 | } |
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| 52 | return nwrite; |
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| 53 | } |
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| 54 | |
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| 55 | /* |
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| 56 | * Console Device Driver Entry Points |
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| 57 | * |
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| 58 | */ |
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| 59 | |
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| 60 | rtems_device_driver console_initialize( |
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| 61 | rtems_device_major_number major, |
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| 62 | rtems_device_minor_number minor, |
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| 63 | void *arg |
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| 64 | ) |
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| 65 | { |
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| 66 | rtems_status_code status; |
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| 67 | |
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| 68 | rtems_termios_initialize(); |
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| 69 | |
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[e182c620] | 70 | /* |
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| 71 | * Make sure the hardware is initialized. |
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| 72 | */ |
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| 73 | |
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| 74 | console_initialize_hardware(); |
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| 75 | |
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[1f5cb74] | 76 | /* |
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| 77 | * Register Device Names |
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| 78 | */ |
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| 79 | |
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| 80 | status = rtems_io_register_name( "/dev/console", major, 0 ); |
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| 81 | if (status != RTEMS_SUCCESSFUL) |
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| 82 | rtems_fatal_error_occurred(status); |
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| 83 | |
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| 84 | return RTEMS_SUCCESSFUL; |
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| 85 | } |
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| 86 | |
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| 87 | rtems_device_driver console_open( |
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| 88 | rtems_device_major_number major, |
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| 89 | rtems_device_minor_number minor, |
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| 90 | void * arg |
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| 91 | ) |
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| 92 | { |
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| 93 | rtems_status_code sc; |
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| 94 | static const rtems_termios_callbacks pollCallbacks = { |
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| 95 | NULL, /* firstOpen */ |
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| 96 | NULL, /* lastClose */ |
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| 97 | console_inbyte_nonblocking, /* pollRead */ |
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| 98 | console_write_support, /* write */ |
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| 99 | NULL, /* setAttributes */ |
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| 100 | NULL, /* stopRemoteTx */ |
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| 101 | NULL, /* startRemoteTx */ |
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| 102 | 0 /* outputUsesInterrupts */ |
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| 103 | }; |
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| 104 | |
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| 105 | |
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| 106 | assert( minor <= 1 ); |
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| 107 | if ( minor > 2 ) |
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| 108 | return RTEMS_INVALID_NUMBER; |
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| 109 | |
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| 110 | sc = rtems_termios_open (major, minor, arg, &pollCallbacks ); |
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| 111 | |
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| 112 | return RTEMS_SUCCESSFUL; |
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| 113 | } |
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| 114 | |
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| 115 | rtems_device_driver console_close( |
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| 116 | rtems_device_major_number major, |
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| 117 | rtems_device_minor_number minor, |
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| 118 | void * arg |
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| 119 | ) |
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| 120 | { |
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| 121 | return rtems_termios_close (arg); |
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| 122 | } |
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| 123 | |
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| 124 | rtems_device_driver console_read( |
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| 125 | rtems_device_major_number major, |
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| 126 | rtems_device_minor_number minor, |
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| 127 | void * arg |
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| 128 | ) |
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| 129 | { |
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| 130 | return rtems_termios_read (arg); |
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| 131 | } |
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| 132 | |
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| 133 | rtems_device_driver console_write( |
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| 134 | rtems_device_major_number major, |
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| 135 | rtems_device_minor_number minor, |
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| 136 | void * arg |
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| 137 | ) |
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| 138 | { |
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| 139 | return rtems_termios_write (arg); |
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| 140 | } |
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| 141 | |
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| 142 | rtems_device_driver console_control( |
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| 143 | rtems_device_major_number major, |
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| 144 | rtems_device_minor_number minor, |
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| 145 | void * arg |
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| 146 | ) |
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| 147 | { |
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| 148 | return rtems_termios_ioctl (arg); |
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| 149 | } |
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| 150 | |
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