Rev 4156 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4043 | jermar | 1 | /* |
| 2 | * Copyright (c) 2009 Jakub Jermar |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 4156 | trochtova | 29 | /** @addtogroup genarch |
| 4043 | jermar | 30 | * @{ |
| 31 | */ |
||
| 32 | /** |
||
| 33 | * @file |
||
| 4156 | trochtova | 34 | * @brief Serial line processing. |
| 4043 | jermar | 35 | */ |
| 36 | |||
| 37 | #include <genarch/srln/srln.h> |
||
| 38 | #include <console/chardev.h> |
||
| 39 | #include <console/console.h> |
||
| 40 | #include <proc/thread.h> |
||
| 41 | #include <arch.h> |
||
| 4296 | trochtova | 42 | #include <string.h> |
| 4043 | jermar | 43 | |
| 4156 | trochtova | 44 | static indev_t srlnout; |
| 4043 | jermar | 45 | |
| 4156 | trochtova | 46 | indev_operations_t srlnout_ops = { |
| 47 | .poll = NULL |
||
| 4043 | jermar | 48 | }; |
| 49 | |||
| 50 | static void ksrln(void *arg) |
||
| 51 | { |
||
| 4156 | trochtova | 52 | indev_t *in = (indev_t *) arg; |
| 53 | bool cr = false; |
||
| 4296 | trochtova | 54 | uint32_t escape = 0; |
| 4156 | trochtova | 55 | |
| 56 | while (true) { |
||
| 4296 | trochtova | 57 | wchar_t ch = _getc(in); |
| 4043 | jermar | 58 | |
| 4296 | trochtova | 59 | /* ANSI escape sequence processing */ |
| 60 | if (escape != 0) { |
||
| 61 | escape <<= 8; |
||
| 62 | escape |= ch & 0xff; |
||
| 63 | |||
| 64 | if ((escape == 0x1b4f) || (escape == 0x1b5b) || (escape == 0x1b5b33)) |
||
| 65 | continue; |
||
| 66 | |||
| 67 | switch (escape) { |
||
| 68 | case 0x1b4f46: |
||
| 69 | case 0x1b5b46: |
||
| 70 | ch = U_END_ARROW; |
||
| 71 | escape = 0; |
||
| 72 | break; |
||
| 73 | case 0x1b4f48: |
||
| 74 | case 0x1b5b48: |
||
| 75 | ch = U_HOME_ARROW; |
||
| 76 | escape = 0; |
||
| 77 | break; |
||
| 78 | case 0x1b5b41: |
||
| 79 | ch = U_UP_ARROW; |
||
| 80 | escape = 0; |
||
| 81 | break; |
||
| 82 | case 0x1b5b42: |
||
| 83 | ch = U_DOWN_ARROW; |
||
| 84 | escape = 0; |
||
| 85 | break; |
||
| 86 | case 0x1b5b43: |
||
| 87 | ch = U_RIGHT_ARROW; |
||
| 88 | escape = 0; |
||
| 89 | break; |
||
| 90 | case 0x1b5b44: |
||
| 91 | ch = U_LEFT_ARROW; |
||
| 92 | escape = 0; |
||
| 93 | break; |
||
| 94 | case 0x1b5b337e: |
||
| 95 | ch = U_DELETE; |
||
| 96 | escape = 0; |
||
| 97 | break; |
||
| 98 | default: |
||
| 99 | escape = 0; |
||
| 100 | } |
||
| 101 | } |
||
| 102 | |||
| 103 | if (ch == 0x1b) { |
||
| 104 | escape = ch & 0xff; |
||
| 105 | continue; |
||
| 106 | } |
||
| 107 | |||
| 108 | /* Replace carriage return with line feed |
||
| 109 | and suppress any following line feed */ |
||
| 4156 | trochtova | 110 | if ((ch == '\n') && (cr)) { |
| 111 | cr = false; |
||
| 4043 | jermar | 112 | continue; |
| 4156 | trochtova | 113 | } |
| 4043 | jermar | 114 | |
| 4156 | trochtova | 115 | if (ch == '\r') { |
| 116 | ch = '\n'; |
||
| 117 | cr = true; |
||
| 118 | } else |
||
| 119 | cr = false; |
||
| 120 | |||
| 4296 | trochtova | 121 | /* Backspace */ |
| 4156 | trochtova | 122 | if (ch == 0x7f) |
| 123 | ch = '\b'; |
||
| 124 | |||
| 125 | indev_push_character(stdin, ch); |
||
| 4043 | jermar | 126 | } |
| 127 | } |
||
| 128 | |||
| 4156 | trochtova | 129 | void srln_init(indev_t *devin) |
| 4043 | jermar | 130 | { |
| 4156 | trochtova | 131 | indev_initialize("srln", &srlnout, &srlnout_ops); |
| 132 | thread_t *thread |
||
| 133 | = thread_create(ksrln, devin, TASK, 0, "ksrln", false); |
||
| 4043 | jermar | 134 | |
| 4156 | trochtova | 135 | if (thread) { |
| 136 | stdin = &srlnout; |
||
| 137 | thread_ready(thread); |
||
| 138 | } |
||
| 4043 | jermar | 139 | } |
| 140 | |||
| 141 | /** @} |
||
| 4055 | trochtova | 142 | */ |