| 1 | /*
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| 2 | * Copyright (c) 2011 Lubos Slovak
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup drvusbhid
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file
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| 34 | * USB HID keyboard autorepeat facilities
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| 35 | */
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| 36 |
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| 37 | #include <fibril_synch.h>
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| 38 | #include <io/keycode.h>
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| 39 | #include <io/console.h>
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| 40 | #include <errno.h>
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| 41 |
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| 42 | #include <usb/debug.h>
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| 43 |
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| 44 | #include "kbdrepeat.h"
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| 45 | #include "kbddev.h"
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| 46 |
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| 47 | static unsigned int CHECK_DELAY = 1000;
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| 48 |
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| 49 | /*----------------------------------------------------------------------------*/
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| 50 |
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| 51 | static void usbhid_kbd_repeat_loop(usbhid_kbd_t *kbd)
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| 52 | {
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| 53 | unsigned int delay = 0;
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| 54 |
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| 55 | usb_log_debug("Starting autorepeat loop.\n");
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| 56 |
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| 57 | while (true) {
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| 58 | fibril_mutex_lock(kbd->repeat_mtx);
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| 59 |
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| 60 | if (kbd->repeat.key_new > 0) {
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| 61 | if (kbd->repeat.key_new == kbd->repeat.key_repeated) {
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| 62 | usb_log_debug2("Repeating key: %u.\n",
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| 63 | kbd->repeat.key_repeated);
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| 64 | usbhid_kbd_push_ev(kbd, KEY_PRESS,
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| 65 | kbd->repeat.key_repeated);
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| 66 | delay = kbd->repeat.delay_between;
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| 67 | } else {
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| 68 | usb_log_debug("New key to repeat: %u.\n",
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| 69 | kbd->repeat.key_new);
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| 70 | kbd->repeat.key_repeated = kbd->repeat.key_new;
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| 71 | delay = kbd->repeat.delay_before;
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| 72 | }
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| 73 | } else {
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| 74 | if (kbd->repeat.key_repeated > 0) {
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| 75 | usb_log_debug("Stopping to repeat key: %u.\n",
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| 76 | kbd->repeat.key_repeated);
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| 77 | kbd->repeat.key_repeated = 0;
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| 78 | }
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| 79 | delay = CHECK_DELAY;
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| 80 | }
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| 81 | fibril_mutex_unlock(kbd->repeat_mtx);
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| 82 |
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| 83 | async_usleep(delay);
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| 84 | }
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| 85 | }
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| 86 |
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| 87 | /*----------------------------------------------------------------------------*/
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| 88 |
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| 89 | int usbhid_kbd_repeat_fibril(void *arg)
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| 90 | {
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| 91 | usb_log_debug("Autorepeat fibril spawned.\n");
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| 92 |
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| 93 | if (arg == NULL) {
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| 94 | usb_log_error("No device!\n");
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| 95 | return EINVAL;
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| 96 | }
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| 97 |
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| 98 | usbhid_kbd_t *kbd = (usbhid_kbd_t *)arg;
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| 99 |
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| 100 | usbhid_kbd_repeat_loop(kbd);
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| 101 |
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| 102 | return EOK;
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| 103 | }
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| 104 |
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| 105 | /*----------------------------------------------------------------------------*/
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| 106 |
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| 107 | void usbhid_kbd_repeat_start(usbhid_kbd_t *kbd, unsigned int key)
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| 108 | {
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| 109 | fibril_mutex_lock(kbd->repeat_mtx);
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| 110 | kbd->repeat.key_new = key;
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| 111 | fibril_mutex_unlock(kbd->repeat_mtx);
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| 112 | }
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| 113 |
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| 114 | /*----------------------------------------------------------------------------*/
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| 115 |
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| 116 | void usbhid_kbd_repeat_stop(usbhid_kbd_t *kbd, unsigned int key)
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| 117 | {
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| 118 | fibril_mutex_lock(kbd->repeat_mtx);
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| 119 | if (key == kbd->repeat.key_new) {
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| 120 | kbd->repeat.key_new = 0;
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| 121 | }
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| 122 | fibril_mutex_unlock(kbd->repeat_mtx);
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| 123 | }
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| 124 |
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| 125 | /**
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| 126 | * @}
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| 127 | */
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