Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4377 | svoboda | 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 | |||
| 29 | /** @addtogroup genarch |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** |
||
| 33 | * @file |
||
| 34 | * @brief Keyboard processing. |
||
| 35 | */ |
||
| 36 | |||
| 37 | #include <genarch/kbrd/kbrd.h> |
||
| 38 | #include <genarch/kbrd/scanc.h> |
||
| 39 | |||
| 40 | #ifdef CONFIG_PC_KBD |
||
| 41 | #include <genarch/kbrd/scanc_pc.h> |
||
| 42 | #endif |
||
| 43 | |||
| 44 | #ifdef CONFIG_SUN_KBD |
||
| 45 | #include <genarch/kbrd/scanc_sun.h> |
||
| 46 | #endif |
||
| 47 | |||
| 48 | #include <synch/spinlock.h> |
||
| 49 | #include <console/chardev.h> |
||
| 50 | #include <console/console.h> |
||
| 51 | #include <proc/thread.h> |
||
| 52 | #include <arch.h> |
||
| 53 | #include <macros.h> |
||
| 54 | |||
| 55 | #define IGNORE_CODE 0x7f |
||
| 56 | #define KEY_RELEASE 0x80 |
||
| 57 | |||
| 58 | #define PRESSED_SHIFT (1 << 0) |
||
| 59 | #define PRESSED_CAPSLOCK (1 << 1) |
||
| 60 | #define LOCKED_CAPSLOCK (1 << 0) |
||
| 61 | |||
| 62 | static indev_operations_t kbrd_raw_ops = { |
||
| 63 | .poll = NULL |
||
| 64 | }; |
||
| 65 | |||
| 66 | /** Process release of key. |
||
| 67 | * |
||
| 68 | * @param sc Scancode of the key being released. |
||
| 69 | */ |
||
| 70 | static void key_released(kbrd_instance_t *instance, wchar_t sc) |
||
| 71 | { |
||
| 72 | spinlock_lock(&instance->keylock); |
||
| 73 | |||
| 74 | switch (sc) { |
||
| 75 | case SC_LSHIFT: |
||
| 76 | case SC_RSHIFT: |
||
| 77 | instance->keyflags &= ~PRESSED_SHIFT; |
||
| 78 | break; |
||
| 79 | case SC_CAPSLOCK: |
||
| 80 | instance->keyflags &= ~PRESSED_CAPSLOCK; |
||
| 81 | if (instance->lockflags & LOCKED_CAPSLOCK) |
||
| 82 | instance->lockflags &= ~LOCKED_CAPSLOCK; |
||
| 83 | else |
||
| 84 | instance->lockflags |= LOCKED_CAPSLOCK; |
||
| 85 | break; |
||
| 86 | default: |
||
| 87 | break; |
||
| 88 | } |
||
| 89 | |||
| 90 | spinlock_unlock(&instance->keylock); |
||
| 91 | } |
||
| 92 | |||
| 93 | /** Process keypress. |
||
| 94 | * |
||
| 95 | * @param sc Scancode of the key being pressed. |
||
| 96 | */ |
||
| 97 | static void key_pressed(kbrd_instance_t *instance, wchar_t sc) |
||
| 98 | { |
||
| 99 | bool letter; |
||
| 100 | bool shift; |
||
| 101 | bool capslock; |
||
| 102 | |||
| 103 | spinlock_lock(&instance->keylock); |
||
| 104 | |||
| 105 | switch (sc) { |
||
| 106 | case SC_LSHIFT: |
||
| 107 | case SC_RSHIFT: |
||
| 108 | instance->keyflags |= PRESSED_SHIFT; |
||
| 109 | break; |
||
| 110 | case SC_CAPSLOCK: |
||
| 111 | instance->keyflags |= PRESSED_CAPSLOCK; |
||
| 112 | break; |
||
| 113 | case SC_SCAN_ESCAPE: |
||
| 114 | break; |
||
| 115 | default: |
||
| 116 | letter = islower(sc_primary_map[sc]); |
||
| 117 | shift = instance->keyflags & PRESSED_SHIFT; |
||
| 118 | capslock = (instance->keyflags & PRESSED_CAPSLOCK) || |
||
| 119 | (instance->lockflags & LOCKED_CAPSLOCK); |
||
| 120 | |||
| 121 | if ((letter) && (capslock)) |
||
| 122 | shift = !shift; |
||
| 123 | |||
| 124 | if (shift) |
||
| 125 | indev_push_character(instance->sink, sc_secondary_map[sc]); |
||
| 126 | else |
||
| 127 | indev_push_character(instance->sink, sc_primary_map[sc]); |
||
| 128 | break; |
||
| 129 | } |
||
| 130 | |||
| 131 | spinlock_unlock(&instance->keylock); |
||
| 132 | } |
||
| 133 | |||
| 134 | static void kkbrd(void *arg) |
||
| 135 | { |
||
| 136 | kbrd_instance_t *instance = (kbrd_instance_t *) arg; |
||
| 137 | |||
| 138 | while (true) { |
||
| 139 | wchar_t sc = indev_pop_character(&instance->raw); |
||
| 140 | |||
| 141 | if (sc == IGNORE_CODE) |
||
| 142 | continue; |
||
| 143 | |||
| 144 | if (sc & KEY_RELEASE) |
||
| 145 | key_released(instance, (sc ^ KEY_RELEASE) & 0x7f); |
||
| 146 | else |
||
| 147 | key_pressed(instance, sc & 0x7f); |
||
| 148 | } |
||
| 149 | } |
||
| 150 | |||
| 151 | kbrd_instance_t *kbrd_init(void) |
||
| 152 | { |
||
| 153 | kbrd_instance_t *instance |
||
| 154 | = malloc(sizeof(kbrd_instance_t), FRAME_ATOMIC); |
||
| 155 | if (instance) { |
||
| 156 | instance->thread |
||
| 157 | = thread_create(kkbrd, (void *) instance, TASK, 0, "kkbrd", false); |
||
| 158 | |||
| 159 | if (!instance->thread) { |
||
| 160 | free(instance); |
||
| 161 | return NULL; |
||
| 162 | } |
||
| 163 | |||
| 164 | instance->sink = NULL; |
||
| 165 | indev_initialize("kbrd", &instance->raw, &kbrd_raw_ops); |
||
| 166 | |||
| 167 | spinlock_initialize(&instance->keylock, "instance_keylock"); |
||
| 168 | instance->keyflags = 0; |
||
| 169 | instance->lockflags = 0; |
||
| 170 | } |
||
| 171 | |||
| 172 | return instance; |
||
| 173 | } |
||
| 174 | |||
| 175 | indev_t *kbrd_wire(kbrd_instance_t *instance, indev_t *sink) |
||
| 176 | { |
||
| 177 | ASSERT(instance); |
||
| 178 | ASSERT(sink); |
||
| 179 | |||
| 180 | instance->sink = sink; |
||
| 181 | thread_ready(instance->thread); |
||
| 182 | |||
| 183 | return &instance->raw; |
||
| 184 | } |
||
| 185 | |||
| 186 | /** @} |
||
| 187 | */ |