108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/*
|
|
*
|
|
* 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
|