blob: 528050e39ad9d539877294f5db2130b771e7d3c7 [file] [log] [blame]
* some common structs and functions to handle infrared remotes via
* input layer ...
* (c) 2003 Gerd Knorr <> [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
* 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);