0,0 → 1,65 |
/* |
* Copyright (c) 2006 Josef Cejka |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup kbdgen |
* @brief HelenOS generic uspace keyboard handler. |
* @ingroup kbd |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef __KEY_BUFFER_H__ |
#define __KEY_BUFFER_H__ |
|
#include <sys/types.h> |
#include <kbd/kbd.h> |
|
/** Size of buffer for pressed keys */ |
#define KEYBUFFER_SIZE 128 |
|
typedef struct { |
kbd_event_t fifo[KEYBUFFER_SIZE]; |
unsigned long head; |
unsigned long tail; |
unsigned long items; |
} keybuffer_t; |
|
extern void keybuffer_free(keybuffer_t *); |
extern void keybuffer_init(keybuffer_t *); |
extern int keybuffer_available(keybuffer_t *); |
extern int keybuffer_empty(keybuffer_t *); |
extern void keybuffer_push(keybuffer_t *, const kbd_event_t *); |
extern int keybuffer_pop(keybuffer_t *, kbd_event_t *); |
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#endif |
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/** |
* @} |
*/ |
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