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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup genarch |
29 | /** @addtogroup genarch |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** |
32 | /** |
| 33 | * @file |
33 | * @file |
| 34 | * @brief Serial line processing. |
34 | * @brief Serial line processing. |
| 35 | */ |
35 | */ |
| 36 | 36 | ||
| 37 | #include <genarch/srln/srln.h> |
37 | #include <genarch/srln/srln.h> |
| 38 | #include <console/chardev.h> |
38 | #include <console/chardev.h> |
| 39 | #include <console/console.h> |
39 | #include <console/console.h> |
| 40 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
| 41 | #include <arch.h> |
41 | #include <arch.h> |
| - | 42 | #include <string.h> |
|
| 42 | 43 | ||
| 43 | static indev_t srlnout; |
- | |
| 44 | - | ||
| 45 | indev_operations_t srlnout_ops = { |
44 | static indev_operations_t srln_raw_ops = { |
| 46 | .poll = NULL |
45 | .poll = NULL |
| 47 | }; |
46 | }; |
| 48 | 47 | ||
| 49 | static void ksrln(void *arg) |
48 | static void ksrln(void *arg) |
| 50 | { |
49 | { |
| 51 | indev_t *in = (indev_t *) arg; |
50 | srln_instance_t *instance = (srln_instance_t *) arg; |
| 52 | bool cr = false; |
51 | bool cr = false; |
| - | 52 | uint32_t escape = 0; |
|
| 53 | 53 | ||
| 54 | while (true) { |
54 | while (true) { |
| - | 55 | wchar_t ch = indev_pop_character(&instance->raw); |
|
| - | 56 | ||
| - | 57 | /* ANSI escape sequence processing */ |
|
| - | 58 | if (escape != 0) { |
|
| - | 59 | escape <<= 8; |
|
| - | 60 | escape |= ch & 0xff; |
|
| - | 61 | ||
| - | 62 | if ((escape == 0x1b4f) || (escape == 0x1b5b) || (escape == 0x1b5b33)) |
|
| - | 63 | continue; |
|
| - | 64 | ||
| 55 | uint8_t ch = _getc(in); |
65 | switch (escape) { |
| - | 66 | case 0x1b4f46: |
|
| - | 67 | case 0x1b5b46: |
|
| - | 68 | ch = U_END_ARROW; |
|
| - | 69 | escape = 0; |
|
| - | 70 | break; |
|
| - | 71 | case 0x1b4f48: |
|
| - | 72 | case 0x1b5b48: |
|
| - | 73 | ch = U_HOME_ARROW; |
|
| - | 74 | escape = 0; |
|
| - | 75 | break; |
|
| - | 76 | case 0x1b5b41: |
|
| - | 77 | ch = U_UP_ARROW; |
|
| - | 78 | escape = 0; |
|
| - | 79 | break; |
|
| - | 80 | case 0x1b5b42: |
|
| - | 81 | ch = U_DOWN_ARROW; |
|
| - | 82 | escape = 0; |
|
| - | 83 | break; |
|
| - | 84 | case 0x1b5b43: |
|
| - | 85 | ch = U_RIGHT_ARROW; |
|
| - | 86 | escape = 0; |
|
| - | 87 | break; |
|
| - | 88 | case 0x1b5b44: |
|
| - | 89 | ch = U_LEFT_ARROW; |
|
| - | 90 | escape = 0; |
|
| - | 91 | break; |
|
| - | 92 | case 0x1b5b337e: |
|
| - | 93 | ch = U_DELETE; |
|
| - | 94 | escape = 0; |
|
| - | 95 | break; |
|
| - | 96 | default: |
|
| - | 97 | escape = 0; |
|
| - | 98 | } |
|
| - | 99 | } |
|
| - | 100 | ||
| - | 101 | if (ch == 0x1b) { |
|
| - | 102 | escape = ch & 0xff; |
|
| - | 103 | continue; |
|
| - | 104 | } |
|
| 56 | 105 | ||
| - | 106 | /* Replace carriage return with line feed |
|
| - | 107 | and suppress any following line feed */ |
|
| 57 | if ((ch == '\n') && (cr)) { |
108 | if ((ch == '\n') && (cr)) { |
| 58 | cr = false; |
109 | cr = false; |
| 59 | continue; |
110 | continue; |
| 60 | } |
111 | } |
| 61 | 112 | ||
| 62 | if (ch == '\r') { |
113 | if (ch == '\r') { |
| 63 | ch = '\n'; |
114 | ch = '\n'; |
| 64 | cr = true; |
115 | cr = true; |
| 65 | } else |
116 | } else |
| 66 | cr = false; |
117 | cr = false; |
| 67 | 118 | ||
| - | 119 | /* Backspace */ |
|
| 68 | if (ch == 0x7f) |
120 | if (ch == 0x7f) |
| 69 | ch = '\b'; |
121 | ch = '\b'; |
| 70 | 122 | ||
| 71 | indev_push_character(stdin, ch); |
123 | indev_push_character(instance->sink, ch); |
| 72 | } |
124 | } |
| 73 | } |
125 | } |
| 74 | 126 | ||
| 75 | void srln_init(indev_t *devin) |
127 | srln_instance_t *srln_init(void) |
| 76 | { |
128 | { |
| - | 129 | srln_instance_t *instance |
|
| 77 | indev_initialize("srln", &srlnout, &srlnout_ops); |
130 | = malloc(sizeof(srln_instance_t), FRAME_ATOMIC); |
| - | 131 | if (instance) { |
|
| 78 | thread_t *thread |
132 | instance->thread |
| 79 | = thread_create(ksrln, devin, TASK, 0, "ksrln", false); |
133 | = thread_create(ksrln, (void *) instance, TASK, 0, "ksrln", false); |
| 80 | 134 | ||
| 81 | if (thread) { |
135 | if (!instance->thread) { |
| 82 | stdin = &srlnout; |
136 | free(instance); |
| - | 137 | return NULL; |
|
| - | 138 | } |
|
| - | 139 | ||
| 83 | thread_ready(thread); |
140 | instance->sink = NULL; |
| - | 141 | indev_initialize("srln", &instance->raw, &srln_raw_ops); |
|
| 84 | } |
142 | } |
| - | 143 | ||
| - | 144 | return instance; |
|
| - | 145 | } |
|
| - | 146 | ||
| - | 147 | indev_t *srln_wire(srln_instance_t *instance, indev_t *sink) |
|
| - | 148 | { |
|
| - | 149 | ASSERT(instance); |
|
| - | 150 | ASSERT(sink); |
|
| - | 151 | ||
| - | 152 | instance->sink = sink; |
|
| - | 153 | thread_ready(instance->thread); |
|
| - | 154 | ||
| - | 155 | return &instance->raw; |
|
| 85 | } |
156 | } |
| 86 | 157 | ||
| 87 | /** @} |
158 | /** @} |
| 88 | */ |
159 | */ |
| 89 | 160 | ||