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| Rev | Author | Line No. | Line |
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| 1339 | cejka | 1 | /* |
| 2 | * Copyright (C) 2006 Josef Cejka |
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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 | |||
| 1649 | cejka | 29 | /** @addtogroup kbdgen |
| 30 | * @brief HelenOS generic uspace keyboard handler. |
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| 31 | * @ingroup kbd |
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| 32 | * @{ |
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| 33 | */ |
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| 34 | /** @file |
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| 35 | */ |
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| 36 | |||
| 1339 | cejka | 37 | #ifndef __KEY_BUFFER_H__ |
| 38 | #define __KEY_BUFFER_H__ |
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| 39 | |||
| 40 | #include <types.h> |
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| 41 | |||
| 1476 | cejka | 42 | /** Size of buffer for pressed keys */ |
| 43 | #define KEYBUFFER_SIZE 128 |
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| 1339 | cejka | 44 | |
| 1451 | cejka | 45 | typedef struct { |
| 1560 | vana | 46 | int fifo[KEYBUFFER_SIZE]; |
| 1451 | cejka | 47 | unsigned long head; |
| 48 | unsigned long tail; |
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| 49 | unsigned long items; |
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| 50 | } keybuffer_t; |
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| 51 | |||
| 52 | void keybuffer_free(keybuffer_t *keybuffer); |
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| 53 | void keybuffer_init(keybuffer_t *keybuffer); |
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| 54 | int keybuffer_available(keybuffer_t *keybuffer); |
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| 55 | int keybuffer_empty(keybuffer_t *keybuffer); |
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| 1560 | vana | 56 | void keybuffer_push(keybuffer_t *keybuffer, int key); |
| 57 | int keybuffer_pop(keybuffer_t *keybuffer, int *c); |
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| 1451 | cejka | 58 | |
| 1339 | cejka | 59 | #endif |
| 60 | |||
| 1649 | cejka | 61 | /** |
| 62 | * @} |
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| 63 | */ |
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| 64 |