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 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); |
9869da5b JH |
28 | int (*encode)(u64 protocols, const struct rc_scancode_filter *scancode, |
29 | struct ir_raw_event *events, unsigned int max); | |
c216369e DH |
30 | |
31 | /* These two should only be used by the lirc decoder */ | |
d8b4b582 DH |
32 | int (*raw_register)(struct rc_dev *dev); |
33 | int (*raw_unregister)(struct rc_dev *dev); | |
3f113e36 MCC |
34 | }; |
35 | ||
36 | struct ir_raw_event_ctrl { | |
c216369e | 37 | struct list_head list; /* to keep track of raw clients */ |
0d2cb1de | 38 | struct task_struct *thread; |
c6ef1e7f | 39 | spinlock_t lock; |
df1caa58 | 40 | struct kfifo_rec_ptr_1 kfifo; /* fifo for the pulse/space durations */ |
3f113e36 MCC |
41 | ktime_t last_event; /* when last event occurred */ |
42 | enum raw_event_type last_type; /* last event type */ | |
d8b4b582 | 43 | struct rc_dev *dev; /* pointer to the parent rc_dev */ |
c216369e DH |
44 | |
45 | /* raw decoder state follows */ | |
46 | struct ir_raw_event prev_ev; | |
4a702ebf | 47 | struct ir_raw_event this_ev; |
c216369e DH |
48 | struct nec_dec { |
49 | int state; | |
50 | unsigned count; | |
51 | u32 bits; | |
86ff071c ML |
52 | bool is_nec_x; |
53 | bool necx_repeat; | |
c216369e DH |
54 | } nec; |
55 | struct rc5_dec { | |
56 | int state; | |
57 | u32 bits; | |
58 | unsigned count; | |
e87b540b | 59 | bool is_rc5x; |
c216369e DH |
60 | } rc5; |
61 | struct rc6_dec { | |
62 | int state; | |
63 | u8 header; | |
64 | u32 body; | |
65 | bool toggle; | |
66 | unsigned count; | |
67 | unsigned wanted_bits; | |
68 | } rc6; | |
69 | struct sony_dec { | |
70 | int state; | |
71 | u32 bits; | |
72 | unsigned count; | |
73 | } sony; | |
74 | struct jvc_dec { | |
75 | int state; | |
76 | u16 bits; | |
77 | u16 old_bits; | |
78 | unsigned count; | |
79 | bool first; | |
80 | bool toggle; | |
81 | } jvc; | |
b32e7243 MCC |
82 | struct sanyo_dec { |
83 | int state; | |
84 | unsigned count; | |
85 | u64 bits; | |
86 | } sanyo; | |
1d184b0b JH |
87 | struct sharp_dec { |
88 | int state; | |
89 | unsigned count; | |
90 | u32 bits; | |
91 | unsigned int pulse_len; | |
92 | } sharp; | |
f5f2cc64 JW |
93 | struct mce_kbd_dec { |
94 | struct input_dev *idev; | |
95 | struct timer_list rx_timeout; | |
96 | char name[64]; | |
97 | char phys[64]; | |
98 | int state; | |
99 | u8 header; | |
100 | u32 body; | |
101 | unsigned count; | |
102 | unsigned wanted_bits; | |
103 | } mce_kbd; | |
ca414698 | 104 | struct lirc_codec { |
d8b4b582 | 105 | struct rc_dev *dev; |
ca414698 | 106 | struct lirc_driver *drv; |
e589333f | 107 | int carrier_low; |
4651918a ML |
108 | |
109 | ktime_t gap_start; | |
110 | u64 gap_duration; | |
111 | bool gap; | |
112 | bool send_timeout_reports; | |
113 | ||
ca414698 | 114 | } lirc; |
1dee9b59 MM |
115 | struct xmp_dec { |
116 | int state; | |
117 | unsigned count; | |
118 | u32 durations[16]; | |
119 | } xmp; | |
3f113e36 MCC |
120 | }; |
121 | ||
122 | /* macros for IR decoders */ | |
384f23e8 MCC |
123 | static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin) |
124 | { | |
e40b1127 DH |
125 | return d1 > (d2 - margin); |
126 | } | |
127 | ||
384f23e8 MCC |
128 | static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin) |
129 | { | |
e40b1127 DH |
130 | return ((d1 > (d2 - margin)) && (d1 < (d2 + margin))); |
131 | } | |
132 | ||
384f23e8 MCC |
133 | static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y) |
134 | { | |
e40b1127 DH |
135 | return x->pulse != y->pulse; |
136 | } | |
137 | ||
384f23e8 MCC |
138 | static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration) |
139 | { | |
e40b1127 DH |
140 | if (duration > ev->duration) |
141 | ev->duration = 0; | |
142 | else | |
143 | ev->duration -= duration; | |
144 | } | |
145 | ||
4651918a ML |
146 | /* Returns true if event is normal pulse/space event */ |
147 | static inline bool is_timing_event(struct ir_raw_event ev) | |
148 | { | |
149 | return !ev.carrier_report && !ev.reset; | |
150 | } | |
151 | ||
510fcb70 | 152 | #define TO_US(duration) DIV_ROUND_CLOSEST((duration), 1000) |
e40b1127 | 153 | #define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space") |
3f113e36 | 154 | |
1d971d92 AS |
155 | /* functions for IR encoders */ |
156 | ||
157 | static inline void init_ir_raw_event_duration(struct ir_raw_event *ev, | |
158 | unsigned int pulse, | |
159 | u32 duration) | |
160 | { | |
161 | init_ir_raw_event(ev); | |
162 | ev->duration = duration; | |
163 | ev->pulse = pulse; | |
164 | } | |
165 | ||
166 | /** | |
167 | * struct ir_raw_timings_manchester - Manchester coding timings | |
168 | * @leader: duration of leader pulse (if any) 0 if continuing | |
169 | * existing signal (see @pulse_space_start) | |
170 | * @pulse_space_start: 1 for starting with pulse (0 for starting with space) | |
171 | * @clock: duration of each pulse/space in ns | |
172 | * @invert: if set clock logic is inverted | |
173 | * (0 = space + pulse, 1 = pulse + space) | |
174 | * @trailer_space: duration of trailer space in ns | |
175 | */ | |
176 | struct ir_raw_timings_manchester { | |
177 | unsigned int leader; | |
178 | unsigned int pulse_space_start:1; | |
179 | unsigned int clock; | |
180 | unsigned int invert:1; | |
181 | unsigned int trailer_space; | |
182 | }; | |
183 | ||
184 | int ir_raw_gen_manchester(struct ir_raw_event **ev, unsigned int max, | |
185 | const struct ir_raw_timings_manchester *timings, | |
186 | unsigned int n, unsigned int data); | |
187 | ||
3f113e36 | 188 | /* |
d8b4b582 | 189 | * Routines from rc-raw.c to be used internally and by decoders |
3f113e36 | 190 | */ |
667c9ebe | 191 | u64 ir_raw_get_allowed_protocols(void); |
0d830b2d | 192 | u64 ir_raw_get_encode_protocols(void); |
d8b4b582 DH |
193 | int ir_raw_event_register(struct rc_dev *dev); |
194 | void ir_raw_event_unregister(struct rc_dev *dev); | |
3f113e36 MCC |
195 | int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler); |
196 | void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler); | |
197 | void ir_raw_init(void); | |
198 | ||
3f113e36 MCC |
199 | /* |
200 | * Decoder initialization code | |
201 | * | |
202 | * Those load logic are called during ir-core init, and automatically | |
203 | * loads the compiled decoders for their usage with IR raw events | |
204 | */ | |
205 | ||
206 | /* from ir-nec-decoder.c */ | |
207 | #ifdef CONFIG_IR_NEC_DECODER_MODULE | |
a4bb6f35 | 208 | #define load_nec_decode() request_module_nowait("ir-nec-decoder") |
3f113e36 | 209 | #else |
600836cc | 210 | static inline void load_nec_decode(void) { } |
3f113e36 MCC |
211 | #endif |
212 | ||
213 | /* from ir-rc5-decoder.c */ | |
214 | #ifdef CONFIG_IR_RC5_DECODER_MODULE | |
a4bb6f35 | 215 | #define load_rc5_decode() request_module_nowait("ir-rc5-decoder") |
3f113e36 | 216 | #else |
600836cc | 217 | static inline void load_rc5_decode(void) { } |
3f113e36 MCC |
218 | #endif |
219 | ||
784a4931 | 220 | /* from ir-rc6-decoder.c */ |
f35473e6 | 221 | #ifdef CONFIG_IR_RC6_DECODER_MODULE |
a4bb6f35 | 222 | #define load_rc6_decode() request_module_nowait("ir-rc6-decoder") |
784a4931 | 223 | #else |
600836cc | 224 | static inline void load_rc6_decode(void) { } |
784a4931 DH |
225 | #endif |
226 | ||
bf670f64 DH |
227 | /* from ir-jvc-decoder.c */ |
228 | #ifdef CONFIG_IR_JVC_DECODER_MODULE | |
a4bb6f35 | 229 | #define load_jvc_decode() request_module_nowait("ir-jvc-decoder") |
bf670f64 | 230 | #else |
600836cc | 231 | static inline void load_jvc_decode(void) { } |
bf670f64 DH |
232 | #endif |
233 | ||
3fe29c89 DH |
234 | /* from ir-sony-decoder.c */ |
235 | #ifdef CONFIG_IR_SONY_DECODER_MODULE | |
a4bb6f35 | 236 | #define load_sony_decode() request_module_nowait("ir-sony-decoder") |
3fe29c89 | 237 | #else |
600836cc | 238 | static inline void load_sony_decode(void) { } |
3fe29c89 DH |
239 | #endif |
240 | ||
b32e7243 MCC |
241 | /* from ir-sanyo-decoder.c */ |
242 | #ifdef CONFIG_IR_SANYO_DECODER_MODULE | |
a4bb6f35 | 243 | #define load_sanyo_decode() request_module_nowait("ir-sanyo-decoder") |
b32e7243 MCC |
244 | #else |
245 | static inline void load_sanyo_decode(void) { } | |
246 | #endif | |
247 | ||
324a6673 JH |
248 | /* from ir-sharp-decoder.c */ |
249 | #ifdef CONFIG_IR_SHARP_DECODER_MODULE | |
250 | #define load_sharp_decode() request_module_nowait("ir-sharp-decoder") | |
251 | #else | |
252 | static inline void load_sharp_decode(void) { } | |
253 | #endif | |
254 | ||
f5f2cc64 JW |
255 | /* from ir-mce_kbd-decoder.c */ |
256 | #ifdef CONFIG_IR_MCE_KBD_DECODER_MODULE | |
a4bb6f35 | 257 | #define load_mce_kbd_decode() request_module_nowait("ir-mce_kbd-decoder") |
f5f2cc64 | 258 | #else |
600836cc | 259 | static inline void load_mce_kbd_decode(void) { } |
f5f2cc64 JW |
260 | #endif |
261 | ||
ca414698 JW |
262 | /* from ir-lirc-codec.c */ |
263 | #ifdef CONFIG_IR_LIRC_CODEC_MODULE | |
a4bb6f35 | 264 | #define load_lirc_codec() request_module_nowait("ir-lirc-codec") |
ca414698 | 265 | #else |
600836cc | 266 | static inline void load_lirc_codec(void) { } |
ca414698 JW |
267 | #endif |
268 | ||
1dee9b59 MM |
269 | /* from ir-xmp-decoder.c */ |
270 | #ifdef CONFIG_IR_XMP_DECODER_MODULE | |
271 | #define load_xmp_decode() request_module_nowait("ir-xmp-decoder") | |
272 | #else | |
273 | static inline void load_xmp_decode(void) { } | |
274 | #endif | |
275 | ||
ca414698 | 276 | |
829ba9fe | 277 | #endif /* _RC_CORE_PRIV */ |