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Commit | Line | Data |
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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 |
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 { |
37 | /* configuration */ | |
971e8298 | 38 | u64 ir_type; |
1da177e4 LT |
39 | |
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 | }; |
90 | ||
ef53a115 MCC |
91 | /* Routines from ir-functions.c */ |
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); |
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 |