Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / include / media / ir-common.h
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1da177e4 1/*
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2 *
3 * some common structs and functions to handle infrared remotes via
4 * input layer ...
5 *
6 * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
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23#ifndef _IR_COMMON
24#define _IR_COMMON
1da177e4 25
d5e52653 26#include <linux/input.h>
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27
28#define IR_TYPE_RC5 1
793cf9e6 29#define IR_TYPE_PD 2 /* Pulse distance encoded IR */
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30#define IR_TYPE_OTHER 99
31
32#define IR_KEYTAB_TYPE u32
33#define IR_KEYTAB_SIZE 128 // enougth for rc5, probably need more some day ...
34
35#define IR_KEYCODE(tab,code) (((unsigned)code < IR_KEYTAB_SIZE) \
36 ? tab[code] : KEY_RESERVED)
37
38struct ir_input_state {
39 /* configuration */
40 int ir_type;
41 IR_KEYTAB_TYPE ir_codes[IR_KEYTAB_SIZE];
42
43 /* key info */
44 u32 ir_raw; /* raw data */
45 u32 ir_key; /* ir key code */
46 u32 keycode; /* linux key code */
47 int keypressed; /* current state */
48};
49
50extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
51extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
8069695c 52extern IR_KEYTAB_TYPE ir_codes_pinnacle[IR_KEYTAB_SIZE];
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53extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
54extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];
239df2e2 55extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE];
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56
57void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
58 int ir_type, IR_KEYTAB_TYPE *ir_codes);
59void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
60void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
61 u32 ir_key, u32 ir_raw);
62u32 ir_extract_bits(u32 data, u32 mask);
63int ir_dump_samples(u32 *samples, int count);
64int ir_decode_biphase(u32 *samples, int count, int low, int high);
793cf9e6 65int ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
1da177e4 66
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67#endif
68
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69/*
70 * Local variables:
71 * c-basic-offset: 8
72 * End:
73 */