Commit | Line | Data |
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3f113e36 MCC |
1 | /* |
2 | * Remote Controller core raw events header | |
3 | * | |
4 | * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com> | |
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 MCC |
18 | |
19 | #include <linux/slab.h> | |
c6ef1e7f | 20 | #include <linux/spinlock.h> |
6bda9644 | 21 | #include <media/rc-core.h> |
3f113e36 MCC |
22 | |
23 | struct ir_raw_handler { | |
24 | struct list_head list; | |
25 | ||
667c9ebe | 26 | u64 protocols; /* which are handled by this handler */ |
d8b4b582 | 27 | int (*decode)(struct rc_dev *dev, struct ir_raw_event event); |
c216369e DH |
28 | |
29 | /* These two should only be used by the lirc decoder */ | |
d8b4b582 DH |
30 | int (*raw_register)(struct rc_dev *dev); |
31 | int (*raw_unregister)(struct rc_dev *dev); | |
3f113e36 MCC |
32 | }; |
33 | ||
34 | struct ir_raw_event_ctrl { | |
c216369e | 35 | struct list_head list; /* to keep track of raw clients */ |
0d2cb1de | 36 | struct task_struct *thread; |
c6ef1e7f | 37 | spinlock_t lock; |
df1caa58 | 38 | struct kfifo_rec_ptr_1 kfifo; /* fifo for the pulse/space durations */ |
3f113e36 MCC |
39 | ktime_t last_event; /* when last event occurred */ |
40 | enum raw_event_type last_type; /* last event type */ | |
d8b4b582 | 41 | struct rc_dev *dev; /* pointer to the parent rc_dev */ |
c216369e DH |
42 | |
43 | /* raw decoder state follows */ | |
44 | struct ir_raw_event prev_ev; | |
4a702ebf | 45 | struct ir_raw_event this_ev; |
c216369e DH |
46 | struct nec_dec { |
47 | int state; | |
48 | unsigned count; | |
49 | u32 bits; | |
86ff071c ML |
50 | bool is_nec_x; |
51 | bool necx_repeat; | |
c216369e DH |
52 | } nec; |
53 | struct rc5_dec { | |
54 | int state; | |
55 | u32 bits; | |
56 | unsigned count; | |
57 | unsigned wanted_bits; | |
58 | } rc5; | |
59 | struct rc6_dec { | |
60 | int state; | |
61 | u8 header; | |
62 | u32 body; | |
63 | bool toggle; | |
64 | unsigned count; | |
65 | unsigned wanted_bits; | |
66 | } rc6; | |
67 | struct sony_dec { | |
68 | int state; | |
69 | u32 bits; | |
70 | unsigned count; | |
71 | } sony; | |
72 | struct jvc_dec { | |
73 | int state; | |
74 | u16 bits; | |
75 | u16 old_bits; | |
76 | unsigned count; | |
77 | bool first; | |
78 | bool toggle; | |
79 | } jvc; | |
7a569f52 JW |
80 | struct rc5_sz_dec { |
81 | int state; | |
82 | u32 bits; | |
83 | unsigned count; | |
84 | unsigned wanted_bits; | |
85 | } rc5_sz; | |
b32e7243 MCC |
86 | struct sanyo_dec { |
87 | int state; | |
88 | unsigned count; | |
89 | u64 bits; | |
90 | } sanyo; | |
f5f2cc64 JW |
91 | struct mce_kbd_dec { |
92 | struct input_dev *idev; | |
93 | struct timer_list rx_timeout; | |
94 | char name[64]; | |
95 | char phys[64]; | |
96 | int state; | |
97 | u8 header; | |
98 | u32 body; | |
99 | unsigned count; | |
100 | unsigned wanted_bits; | |
101 | } mce_kbd; | |
ca414698 | 102 | struct lirc_codec { |
d8b4b582 | 103 | struct rc_dev *dev; |
ca414698 | 104 | struct lirc_driver *drv; |
e589333f | 105 | int carrier_low; |
4651918a ML |
106 | |
107 | ktime_t gap_start; | |
108 | u64 gap_duration; | |
109 | bool gap; | |
110 | bool send_timeout_reports; | |
111 | ||
ca414698 | 112 | } lirc; |
3f113e36 MCC |
113 | }; |
114 | ||
115 | /* macros for IR decoders */ | |
384f23e8 MCC |
116 | static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin) |
117 | { | |
e40b1127 DH |
118 | return d1 > (d2 - margin); |
119 | } | |
120 | ||
384f23e8 MCC |
121 | static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin) |
122 | { | |
e40b1127 DH |
123 | return ((d1 > (d2 - margin)) && (d1 < (d2 + margin))); |
124 | } | |
125 | ||
384f23e8 MCC |
126 | static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y) |
127 | { | |
e40b1127 DH |
128 | return x->pulse != y->pulse; |
129 | } | |
130 | ||
384f23e8 MCC |
131 | static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration) |
132 | { | |
e40b1127 DH |
133 | if (duration > ev->duration) |
134 | ev->duration = 0; | |
135 | else | |
136 | ev->duration -= duration; | |
137 | } | |
138 | ||
4651918a ML |
139 | /* Returns true if event is normal pulse/space event */ |
140 | static inline bool is_timing_event(struct ir_raw_event ev) | |
141 | { | |
142 | return !ev.carrier_report && !ev.reset; | |
143 | } | |
144 | ||
510fcb70 | 145 | #define TO_US(duration) DIV_ROUND_CLOSEST((duration), 1000) |
e40b1127 | 146 | #define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space") |
3f113e36 MCC |
147 | |
148 | /* | |
d8b4b582 | 149 | * Routines from rc-raw.c to be used internally and by decoders |
3f113e36 | 150 | */ |
667c9ebe | 151 | u64 ir_raw_get_allowed_protocols(void); |
d8b4b582 DH |
152 | int ir_raw_event_register(struct rc_dev *dev); |
153 | void ir_raw_event_unregister(struct rc_dev *dev); | |
3f113e36 MCC |
154 | int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler); |
155 | void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler); | |
156 | void ir_raw_init(void); | |
157 | ||
3f113e36 MCC |
158 | /* |
159 | * Decoder initialization code | |
160 | * | |
161 | * Those load logic are called during ir-core init, and automatically | |
162 | * loads the compiled decoders for their usage with IR raw events | |
163 | */ | |
164 | ||
165 | /* from ir-nec-decoder.c */ | |
166 | #ifdef CONFIG_IR_NEC_DECODER_MODULE | |
a4bb6f35 | 167 | #define load_nec_decode() request_module_nowait("ir-nec-decoder") |
3f113e36 | 168 | #else |
600836cc | 169 | static inline void load_nec_decode(void) { } |
3f113e36 MCC |
170 | #endif |
171 | ||
172 | /* from ir-rc5-decoder.c */ | |
173 | #ifdef CONFIG_IR_RC5_DECODER_MODULE | |
a4bb6f35 | 174 | #define load_rc5_decode() request_module_nowait("ir-rc5-decoder") |
3f113e36 | 175 | #else |
600836cc | 176 | static inline void load_rc5_decode(void) { } |
3f113e36 MCC |
177 | #endif |
178 | ||
784a4931 | 179 | /* from ir-rc6-decoder.c */ |
f35473e6 | 180 | #ifdef CONFIG_IR_RC6_DECODER_MODULE |
a4bb6f35 | 181 | #define load_rc6_decode() request_module_nowait("ir-rc6-decoder") |
784a4931 | 182 | #else |
600836cc | 183 | static inline void load_rc6_decode(void) { } |
784a4931 DH |
184 | #endif |
185 | ||
bf670f64 DH |
186 | /* from ir-jvc-decoder.c */ |
187 | #ifdef CONFIG_IR_JVC_DECODER_MODULE | |
a4bb6f35 | 188 | #define load_jvc_decode() request_module_nowait("ir-jvc-decoder") |
bf670f64 | 189 | #else |
600836cc | 190 | static inline void load_jvc_decode(void) { } |
bf670f64 DH |
191 | #endif |
192 | ||
3fe29c89 DH |
193 | /* from ir-sony-decoder.c */ |
194 | #ifdef CONFIG_IR_SONY_DECODER_MODULE | |
a4bb6f35 | 195 | #define load_sony_decode() request_module_nowait("ir-sony-decoder") |
3fe29c89 | 196 | #else |
600836cc | 197 | static inline void load_sony_decode(void) { } |
3fe29c89 DH |
198 | #endif |
199 | ||
b32e7243 MCC |
200 | /* from ir-sanyo-decoder.c */ |
201 | #ifdef CONFIG_IR_SANYO_DECODER_MODULE | |
a4bb6f35 | 202 | #define load_sanyo_decode() request_module_nowait("ir-sanyo-decoder") |
b32e7243 MCC |
203 | #else |
204 | static inline void load_sanyo_decode(void) { } | |
205 | #endif | |
206 | ||
f5f2cc64 JW |
207 | /* from ir-mce_kbd-decoder.c */ |
208 | #ifdef CONFIG_IR_MCE_KBD_DECODER_MODULE | |
a4bb6f35 | 209 | #define load_mce_kbd_decode() request_module_nowait("ir-mce_kbd-decoder") |
f5f2cc64 | 210 | #else |
600836cc | 211 | static inline void load_mce_kbd_decode(void) { } |
f5f2cc64 JW |
212 | #endif |
213 | ||
ca414698 JW |
214 | /* from ir-lirc-codec.c */ |
215 | #ifdef CONFIG_IR_LIRC_CODEC_MODULE | |
a4bb6f35 | 216 | #define load_lirc_codec() request_module_nowait("ir-lirc-codec") |
ca414698 | 217 | #else |
600836cc | 218 | static inline void load_lirc_codec(void) { } |
ca414698 JW |
219 | #endif |
220 | ||
221 | ||
829ba9fe | 222 | #endif /* _RC_CORE_PRIV */ |