2 * some common functions to handle infrared remote protocol decoding for
3 * drivers which have not yet been (or can't be) converted to use the
4 * regular protocol decoders...
6 * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
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.
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.
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
26 #include <linux/input.h>
27 #include <linux/workqueue.h>
28 #include <linux/interrupt.h>
29 #include <media/ir-core.h>
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)
36 /* this was saa7134_ir and bttv_ir, moved here for
39 struct input_dev *dev;
44 struct ir_dev_props props;
46 /* Usual gpio signalling */
53 int start; // What should RC5_START() be
54 int addr; // What RC5_ADDR() should be.
56 struct work_struct work;
57 struct timer_list timer;
61 struct timer_list timer_end; /* timer_end for code completion */
62 u32 last_bit; /* last raw bit seen */
63 u32 code; /* raw code under construction */
64 struct timeval base_time; /* time of last seen code */
65 int active; /* building raw code */
69 struct tasklet_struct tlet;
71 /* IR core raw decoding */
75 /* Routines from ir-functions.c */
76 u32 ir_extract_bits(u32 data, u32 mask);
77 void ir_rc5_timer_end(unsigned long data);