Commit | Line | Data |
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3f113e36 MCC |
1 | /* |
2 | * Remote Controller core raw events header | |
3 | * | |
37e59f87 | 4 | * Copyright (C) 2010 by Mauro Carvalho Chehab |
3f113e36 MCC |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
829ba9fe DH |
16 | #ifndef _RC_CORE_PRIV |
17 | #define _RC_CORE_PRIV | |
3f113e36 | 18 | |
464254e5 HK |
19 | /* Define the max number of pulse/space transitions to buffer */ |
20 | #define MAX_IR_EVENT_SIZE 512 | |
21 | ||
3f113e36 | 22 | #include <linux/slab.h> |
c6ef1e7f | 23 | #include <linux/spinlock.h> |
6bda9644 | 24 | #include <media/rc-core.h> |
3f113e36 MCC |
25 | |
26 | struct ir_raw_handler { | |
27 | struct list_head list; | |
28 | ||
667c9ebe | 29 | u64 protocols; /* which are handled by this handler */ |
d8b4b582 | 30 | int (*decode)(struct rc_dev *dev, struct ir_raw_event event); |
c216369e DH |
31 | |
32 | /* These two should only be used by the lirc decoder */ | |
d8b4b582 DH |
33 | int (*raw_register)(struct rc_dev *dev); |
34 | int (*raw_unregister)(struct rc_dev *dev); | |
3f113e36 MCC |
35 | }; |
36 | ||
37 | struct ir_raw_event_ctrl { | |
c216369e | 38 | struct list_head list; /* to keep track of raw clients */ |
0d2cb1de | 39 | struct task_struct *thread; |
c6ef1e7f | 40 | spinlock_t lock; |
464254e5 HK |
41 | /* fifo for the pulse/space durations */ |
42 | DECLARE_KFIFO(kfifo, struct ir_raw_event, MAX_IR_EVENT_SIZE); | |
3f113e36 MCC |
43 | ktime_t last_event; /* when last event occurred */ |
44 | enum raw_event_type last_type; /* last event type */ | |
d8b4b582 | 45 | struct rc_dev *dev; /* pointer to the parent rc_dev */ |
c216369e DH |
46 | |
47 | /* raw decoder state follows */ | |
48 | struct ir_raw_event prev_ev; | |
4a702ebf | 49 | struct ir_raw_event this_ev; |
c216369e DH |
50 | struct nec_dec { |
51 | int state; | |
52 | unsigned count; | |
53 | u32 bits; | |
86ff071c ML |
54 | bool is_nec_x; |
55 | bool necx_repeat; | |
c216369e DH |
56 | } nec; |
57 | struct rc5_dec { | |
58 | int state; | |
59 | u32 bits; | |
60 | unsigned count; | |
e87b540b | 61 | bool is_rc5x; |
c216369e DH |
62 | } rc5; |
63 | struct rc6_dec { | |
64 | int state; | |
65 | u8 header; | |
66 | u32 body; | |
67 | bool toggle; | |
68 | unsigned count; | |
69 | unsigned wanted_bits; | |
70 | } rc6; | |
71 | struct sony_dec { | |
72 | int state; | |
73 | u32 bits; | |
74 | unsigned count; | |
75 | } sony; | |
76 | struct jvc_dec { | |
77 | int state; | |
78 | u16 bits; | |
79 | u16 old_bits; | |
80 | unsigned count; | |
81 | bool first; | |
82 | bool toggle; | |
83 | } jvc; | |
b32e7243 MCC |
84 | struct sanyo_dec { |
85 | int state; | |
86 | unsigned count; | |
87 | u64 bits; | |
88 | } sanyo; | |
1d184b0b JH |
89 | struct sharp_dec { |
90 | int state; | |
91 | unsigned count; | |
92 | u32 bits; | |
93 | unsigned int pulse_len; | |
94 | } sharp; | |
f5f2cc64 JW |
95 | struct mce_kbd_dec { |
96 | struct input_dev *idev; | |
97 | struct timer_list rx_timeout; | |
98 | char name[64]; | |
99 | char phys[64]; | |
100 | int state; | |
101 | u8 header; | |
102 | u32 body; | |
103 | unsigned count; | |
104 | unsigned wanted_bits; | |
105 | } mce_kbd; | |
ca414698 | 106 | struct lirc_codec { |
d8b4b582 | 107 | struct rc_dev *dev; |
ca414698 | 108 | struct lirc_driver *drv; |
e589333f | 109 | int carrier_low; |
4651918a ML |
110 | |
111 | ktime_t gap_start; | |
112 | u64 gap_duration; | |
113 | bool gap; | |
114 | bool send_timeout_reports; | |
115 | ||
ca414698 | 116 | } lirc; |
1dee9b59 MM |
117 | struct xmp_dec { |
118 | int state; | |
119 | unsigned count; | |
120 | u32 durations[16]; | |
121 | } xmp; | |
3f113e36 MCC |
122 | }; |
123 | ||
124 | /* macros for IR decoders */ | |
384f23e8 MCC |
125 | static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin) |
126 | { | |
e40b1127 DH |
127 | return d1 > (d2 - margin); |
128 | } | |
129 | ||
384f23e8 MCC |
130 | static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin) |
131 | { | |
e40b1127 DH |
132 | return ((d1 > (d2 - margin)) && (d1 < (d2 + margin))); |
133 | } | |
134 | ||
384f23e8 MCC |
135 | static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y) |
136 | { | |
e40b1127 DH |
137 | return x->pulse != y->pulse; |
138 | } | |
139 | ||
384f23e8 MCC |
140 | static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration) |
141 | { | |
e40b1127 DH |
142 | if (duration > ev->duration) |
143 | ev->duration = 0; | |
144 | else | |
145 | ev->duration -= duration; | |
146 | } | |
147 | ||
4651918a ML |
148 | /* Returns true if event is normal pulse/space event */ |
149 | static inline bool is_timing_event(struct ir_raw_event ev) | |
150 | { | |
151 | return !ev.carrier_report && !ev.reset; | |
152 | } | |
153 | ||
510fcb70 | 154 | #define TO_US(duration) DIV_ROUND_CLOSEST((duration), 1000) |
e40b1127 | 155 | #define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space") |
3f113e36 MCC |
156 | |
157 | /* | |
d8b4b582 | 158 | * Routines from rc-raw.c to be used internally and by decoders |
3f113e36 | 159 | */ |
667c9ebe | 160 | u64 ir_raw_get_allowed_protocols(void); |
d8b4b582 DH |
161 | int ir_raw_event_register(struct rc_dev *dev); |
162 | void ir_raw_event_unregister(struct rc_dev *dev); | |
3f113e36 MCC |
163 | int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler); |
164 | void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler); | |
165 | void ir_raw_init(void); | |
166 | ||
3f113e36 MCC |
167 | /* |
168 | * Decoder initialization code | |
169 | * | |
170 | * Those load logic are called during ir-core init, and automatically | |
171 | * loads the compiled decoders for their usage with IR raw events | |
172 | */ | |
173 | ||
829ba9fe | 174 | #endif /* _RC_CORE_PRIV */ |