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/*
*
* some common structs and functions to handle infrared remotes via
* input layer ...
*
* (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/input.h>
#define IR_TYPE_RC5 1
#define IR_TYPE_PD 2 /* Pulse distance encoded IR */
#define IR_TYPE_OTHER 99
#define IR_KEYTAB_TYPE u32
#define IR_KEYTAB_SIZE 128 // enougth for rc5, probably need more some day ...
#define IR_KEYCODE(tab,code) (((unsigned)code < IR_KEYTAB_SIZE) \
? tab[code] : KEY_RESERVED)
struct ir_input_state {
/* configuration */
int ir_type;
IR_KEYTAB_TYPE ir_codes[IR_KEYTAB_SIZE];
/* key info */
u32 ir_raw; /* raw data */
u32 ir_key; /* ir key code */
u32 keycode; /* linux key code */
int keypressed; /* current state */
};
extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE];
void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
int ir_type, IR_KEYTAB_TYPE *ir_codes);
void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
u32 ir_key, u32 ir_raw);
u32 ir_extract_bits(u32 data, u32 mask);
int ir_dump_samples(u32 *samples, int count);
int ir_decode_biphase(u32 *samples, int count, int low, int high);
int ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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