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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2006 Josef Cejka |
2 | * Copyright (c) 2006 Josef Cejka |
| 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 kbdgen |
29 | /** @addtogroup kbdgen |
| 30 | * @brief HelenOS generic uspace keyboard handler. |
30 | * @brief HelenOS generic uspace keyboard handler. |
| 31 | * @ingroup kbd |
31 | * @ingroup kbd |
| 32 | * @{ |
32 | * @{ |
| 33 | */ |
33 | */ |
| 34 | /** @file |
34 | /** @file |
| 35 | */ |
35 | */ |
| 36 | 36 | ||
| 37 | #ifndef __KEYBUFFER_H__ |
37 | #ifndef __KEYBUFFER_H__ |
| 38 | #define __KEYBUFFER_H__ |
38 | #define __KEYBUFFER_H__ |
| 39 | 39 | ||
| 40 | #include <sys/types.h> |
40 | #include <sys/types.h> |
| 41 | #include <io/console.h> |
41 | #include <io/console.h> |
| 42 | #include <bool.h> |
42 | #include <bool.h> |
| 43 | 43 | ||
| 44 | /** Size of buffer for pressed keys */ |
44 | /** Size of buffer for pressed keys */ |
| 45 | #define KEYBUFFER_SIZE 128 |
45 | #define KEYBUFFER_SIZE 128 |
| 46 | 46 | ||
| 47 | typedef struct { |
47 | typedef struct { |
| 48 | console_event_t fifo[KEYBUFFER_SIZE]; |
48 | console_event_t fifo[KEYBUFFER_SIZE]; |
| 49 | unsigned long head; |
49 | unsigned long head; |
| 50 | unsigned long tail; |
50 | unsigned long tail; |
| 51 | unsigned long items; |
51 | unsigned long items; |
| 52 | } keybuffer_t; |
52 | } keybuffer_t; |
| 53 | 53 | ||
| 54 | extern void keybuffer_free(keybuffer_t *); |
54 | extern void keybuffer_free(keybuffer_t *); |
| 55 | extern void keybuffer_init(keybuffer_t *); |
55 | extern void keybuffer_init(keybuffer_t *); |
| 56 | extern size_t keybuffer_available(keybuffer_t *); |
56 | extern size_t keybuffer_available(keybuffer_t *); |
| 57 | extern bool keybuffer_empty(keybuffer_t *); |
57 | extern bool keybuffer_empty(keybuffer_t *); |
| 58 | extern void keybuffer_push(keybuffer_t *, const console_event_t *); |
58 | extern void keybuffer_push(keybuffer_t *, const console_event_t *); |
| 59 | extern bool keybuffer_pop(keybuffer_t *, console_event_t *); |
59 | extern bool keybuffer_pop(keybuffer_t *, console_event_t *); |
| 60 | 60 | ||
| 61 | #endif |
61 | #endif |
| 62 | 62 | ||
| 63 | /** |
63 | /** |
| 64 | * @} |
64 | * @} |
| 65 | */ |
65 | */ |
| 66 | 66 | ||