[net-next-2.6.git] / include / media / ir-common.h

/*
 *
 * 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
 */

#ifndef _IR_COMMON
#define _IR_COMMON

#include <linux/input.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <media/ir-core.h>

#define RC5_START(x)	(((x)>>12)&3)
#define RC5_TOGGLE(x)	(((x)>>11)&1)
#define RC5_ADDR(x)	(((x)>>6)&31)
#define RC5_INSTR(x)	((x)&63)

struct ir_input_state {
	/* configuration */
	u64      ir_type;

	/* key info */
	u32                ir_key;      /* ir scancode */
	u32                keycode;     /* linux key code */
	int                keypressed;  /* current state */
};

/* this was saa7134_ir and bttv_ir, moved here for
 * rc5 decoding. */
struct card_ir {
	struct input_dev        *dev;
	struct ir_input_state   ir;
	char                    name[32];
	char                    phys[32];
	int			users;

	u32			running:1;
	struct ir_dev_props	props;

	/* Usual gpio signalling */

	u32                     mask_keycode;
	u32                     mask_keydown;
	u32                     mask_keyup;
	u32                     polling;
	u32                     last_gpio;
	int			shift_by;
	int			start; // What should RC5_START() be
	int			addr; // What RC5_ADDR() should be.
	int			rc5_key_timeout;
	int			rc5_remote_gap;
	struct work_struct      work;
	struct timer_list       timer;

	/* RC5 gpio */
	u32 rc5_gpio;
	struct timer_list timer_end;	/* timer_end for code completion */
	struct timer_list timer_keyup;	/* timer_end for key release */
	u32 last_rc5;			/* last good rc5 code */
	u32 last_bit;			/* last raw bit seen */
	u32 code;			/* raw code under construction */
	struct timeval base_time;	/* time of last seen code */
	int active;			/* building raw code */

	/* NEC decoding */
	u32			nec_gpio;
	struct tasklet_struct   tlet;

	/* IR core raw decoding */
	u32			raw_decode;
};

/* Routines from ir-functions.c */

int ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
		   const u64 ir_type);
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_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);
u32  ir_rc5_decode(unsigned int code);

void ir_rc5_timer_end(unsigned long data);
void ir_rc5_timer_keyup(unsigned long data);

#endif
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	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
d5e52653 MCC	23	#ifndef _IR_COMMON
d5e52653 MCC	24	#define _IR_COMMON
1da177e4	25
d5e52653	26	#include <linux/input.h>
0b778a56	27	#include <linux/workqueue.h>
622ecb30	28	#include <linux/interrupt.h>
446e4a64	29	#include <media/ir-core.h>
1da177e4	30
9160723e HP	31	#define RC5_START(x) (((x)>>12)&3)
	32	#define RC5_TOGGLE(x) (((x)>>11)&1)
	33	#define RC5_ADDR(x) (((x)>>6)&31)
	34	#define RC5_INSTR(x) ((x)&63)
	35
1da177e4 LT	36	struct ir_input_state {
1da177e4 LT	37	/* configuration */
971e8298	38	u64 ir_type;
1da177e4 LT	39
1da177e4 LT	40	/* key info */
8573b74a	41	u32 ir_key; /* ir scancode */
1da177e4 LT	42	u32 keycode; /* linux key code */
	43	int keypressed; /* current state */
	44	};
	45
9160723e HP	46	/* this was saa7134_ir and bttv_ir, moved here for
	47	* rc5 decoding. */
	48	struct card_ir {
	49	struct input_dev *dev;
	50	struct ir_input_state ir;
	51	char name[32];
	52	char phys[32];
716aab44	53	int users;
9160723e	54
02108949 MCC	55	u32 running:1;
	56	struct ir_dev_props props;
	57
9160723e HP	58	/* Usual gpio signalling */
	59
	60	u32 mask_keycode;
	61	u32 mask_keydown;
	62	u32 mask_keyup;
	63	u32 polling;
	64	u32 last_gpio;
	65	int shift_by;
	66	int start; // What should RC5_START() be
	67	int addr; // What RC5_ADDR() should be.
	68	int rc5_key_timeout;
	69	int rc5_remote_gap;
	70	struct work_struct work;
	71	struct timer_list timer;
	72
	73	/* RC5 gpio */
	74	u32 rc5_gpio;
	75	struct timer_list timer_end; /* timer_end for code completion */
	76	struct timer_list timer_keyup; /* timer_end for key release */
	77	u32 last_rc5; /* last good rc5 code */
	78	u32 last_bit; /* last raw bit seen */
	79	u32 code; /* raw code under construction */
	80	struct timeval base_time; /* time of last seen code */
	81	int active; /* building raw code */
622ecb30 MCC	82
	83	/* NEC decoding */
	84	u32 nec_gpio;
	85	struct tasklet_struct tlet;
a3572c34 MCC	86
	87	/* IR core raw decoding */
	88	u32 raw_decode;
9160723e HP	89	};
9160723e HP	90
ef53a115 MCC	91	/* Routines from ir-functions.c */
ef53a115 MCC	92
055cd556	93	int ir_input_init(struct input_dev dev, struct ir_input_state ir,
971e8298	94	const u64 ir_type);
1da177e4 LT	95	void ir_input_nokey(struct input_dev dev, struct ir_input_state ir);
1da177e4 LT	96	void ir_input_keydown(struct input_dev dev, struct ir_input_state ir,
8573b74a	97	u32 ir_key);
1da177e4 LT	98	u32 ir_extract_bits(u32 data, u32 mask);
	99	int ir_dump_samples(u32 *samples, int count);
	100	int ir_decode_biphase(u32 *samples, int count, int low, int high);
793cf9e6	101	int ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
1d23a002	102	u32 ir_rc5_decode(unsigned int code);
1da177e4	103
9160723e HP	104	void ir_rc5_timer_end(unsigned long data);
	105	void ir_rc5_timer_keyup(unsigned long data);
	106
d5e52653	107	#endif