/*
 *
 * 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);

/* scancode->keycode map tables from ir-keymaps.c */

#define IR_KEYTABLE(a)					\
(ir_codes_ ## a ## _table)

#define DECLARE_IR_KEYTABLE(a)					\
extern struct ir_scancode_table IR_KEYTABLE(a)

DECLARE_IR_KEYTABLE(adstech_dvb_t_pci);
DECLARE_IR_KEYTABLE(apac_viewcomp);
DECLARE_IR_KEYTABLE(asus_pc39);
DECLARE_IR_KEYTABLE(ati_tv_wonder_hd_600);
DECLARE_IR_KEYTABLE(avermedia);
DECLARE_IR_KEYTABLE(avermedia_a16d);
DECLARE_IR_KEYTABLE(avermedia_cardbus);
DECLARE_IR_KEYTABLE(avermedia_dvbt);
DECLARE_IR_KEYTABLE(avermedia_m135a_rm_jx);
DECLARE_IR_KEYTABLE(avertv_303);
DECLARE_IR_KEYTABLE(behold);
DECLARE_IR_KEYTABLE(behold_columbus);
DECLARE_IR_KEYTABLE(budget_ci_old);
DECLARE_IR_KEYTABLE(cinergy);
DECLARE_IR_KEYTABLE(cinergy_1400);
DECLARE_IR_KEYTABLE(dm1105_nec);
DECLARE_IR_KEYTABLE(dntv_live_dvb_t);
DECLARE_IR_KEYTABLE(dntv_live_dvbt_pro);
DECLARE_IR_KEYTABLE(empty);
DECLARE_IR_KEYTABLE(em_terratec);
DECLARE_IR_KEYTABLE(encore_enltv);
DECLARE_IR_KEYTABLE(encore_enltv2);
DECLARE_IR_KEYTABLE(encore_enltv_fm53);
DECLARE_IR_KEYTABLE(evga_indtube);
DECLARE_IR_KEYTABLE(eztv);
DECLARE_IR_KEYTABLE(flydvb);
DECLARE_IR_KEYTABLE(flyvideo);
DECLARE_IR_KEYTABLE(fusionhdtv_mce);
DECLARE_IR_KEYTABLE(gadmei_rm008z);
DECLARE_IR_KEYTABLE(genius_tvgo_a11mce);
DECLARE_IR_KEYTABLE(gotview7135);
DECLARE_IR_KEYTABLE(hauppauge_new);
DECLARE_IR_KEYTABLE(iodata_bctv7e);
DECLARE_IR_KEYTABLE(kaiomy);
DECLARE_IR_KEYTABLE(kworld_315u);
DECLARE_IR_KEYTABLE(kworld_plus_tv_analog);
DECLARE_IR_KEYTABLE(manli);
DECLARE_IR_KEYTABLE(msi_tvanywhere);
DECLARE_IR_KEYTABLE(msi_tvanywhere_plus);
DECLARE_IR_KEYTABLE(nebula);
DECLARE_IR_KEYTABLE(nec_terratec_cinergy_xs);
DECLARE_IR_KEYTABLE(norwood);
DECLARE_IR_KEYTABLE(npgtech);
DECLARE_IR_KEYTABLE(pctv_sedna);
DECLARE_IR_KEYTABLE(pinnacle_color);
DECLARE_IR_KEYTABLE(pinnacle_grey);
DECLARE_IR_KEYTABLE(pinnacle_pctv_hd);
DECLARE_IR_KEYTABLE(pixelview);
DECLARE_IR_KEYTABLE(pixelview_new);
DECLARE_IR_KEYTABLE(powercolor_real_angel);
DECLARE_IR_KEYTABLE(proteus_2309);
DECLARE_IR_KEYTABLE(purpletv);
DECLARE_IR_KEYTABLE(pv951);
DECLARE_IR_KEYTABLE(rc5_hauppauge_new);
DECLARE_IR_KEYTABLE(rc5_tv);
DECLARE_IR_KEYTABLE(real_audio_220_32_keys);
DECLARE_IR_KEYTABLE(tbs_nec);
DECLARE_IR_KEYTABLE(terratec_cinergy_xs);
DECLARE_IR_KEYTABLE(tevii_nec);
DECLARE_IR_KEYTABLE(tt_1500);
DECLARE_IR_KEYTABLE(videomate_s350);
DECLARE_IR_KEYTABLE(videomate_tv_pvr);
DECLARE_IR_KEYTABLE(winfast);
DECLARE_IR_KEYTABLE(winfast_usbii_deluxe);

#endif