blob: c6ca870e8b7eb1e2a112b8da1670cd896ed12e1d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* Remote Controller core raw events header
*
* Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _RC_CORE_PRIV
#define _RC_CORE_PRIV
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <media/rc-core.h>
struct ir_raw_handler {
struct list_head list;
u64 protocols; /* which are handled by this handler */
int (*decode)(struct rc_dev *dev, struct ir_raw_event event);
/* These two should only be used by the lirc decoder */
int (*raw_register)(struct rc_dev *dev);
int (*raw_unregister)(struct rc_dev *dev);
};
struct ir_raw_event_ctrl {
struct list_head list; /* to keep track of raw clients */
struct task_struct *thread;
spinlock_t lock;
struct kfifo kfifo; /* fifo for the pulse/space durations */
ktime_t last_event; /* when last event occurred */
enum raw_event_type last_type; /* last event type */
struct rc_dev *dev; /* pointer to the parent rc_dev */
u64 enabled_protocols; /* enabled raw protocol decoders */
/* raw decoder state follows */
struct ir_raw_event prev_ev;
struct ir_raw_event this_ev;
struct nec_dec {
int state;
unsigned count;
u32 bits;
bool is_nec_x;
bool necx_repeat;
} nec;
struct rc5_dec {
int state;
u32 bits;
unsigned count;
unsigned wanted_bits;
} rc5;
struct rc6_dec {
int state;
u8 header;
u32 body;
bool toggle;
unsigned count;
unsigned wanted_bits;
} rc6;
struct sony_dec {
int state;
u32 bits;
unsigned count;
} sony;
struct jvc_dec {
int state;
u16 bits;
u16 old_bits;
unsigned count;
bool first;
bool toggle;
} jvc;
struct rc5_sz_dec {
int state;
u32 bits;
unsigned count;
unsigned wanted_bits;
} rc5_sz;
struct mce_kbd_dec {
struct input_dev *idev;
struct timer_list rx_timeout;
char name[64];
char phys[64];
int state;
u8 header;
u32 body;
unsigned count;
unsigned wanted_bits;
} mce_kbd;
struct lirc_codec {
struct rc_dev *dev;
struct lirc_driver *drv;
int carrier_low;
ktime_t gap_start;
u64 gap_duration;
bool gap;
bool send_timeout_reports;
} lirc;
};
/* macros for IR decoders */
static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin)
{
return d1 > (d2 - margin);
}
static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin)
{
return ((d1 > (d2 - margin)) && (d1 < (d2 + margin)));
}
static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y)
{
return x->pulse != y->pulse;
}
static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration)
{
if (duration > ev->duration)
ev->duration = 0;
else
ev->duration -= duration;
}
/* Returns true if event is normal pulse/space event */
static inline bool is_timing_event(struct ir_raw_event ev)
{
return !ev.carrier_report && !ev.reset;
}
#define TO_US(duration) DIV_ROUND_CLOSEST((duration), 1000)
#define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space")
/*
* Routines from rc-raw.c to be used internally and by decoders
*/
u64 ir_raw_get_allowed_protocols(void);
int ir_raw_event_register(struct rc_dev *dev);
void ir_raw_event_unregister(struct rc_dev *dev);
int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
void ir_raw_init(void);
/*
* Decoder initialization code
*
* Those load logic are called during ir-core init, and automatically
* loads the compiled decoders for their usage with IR raw events
*/
/* from ir-nec-decoder.c */
#ifdef CONFIG_IR_NEC_DECODER_MODULE
#define load_nec_decode() request_module("ir-nec-decoder")
#else
static inline void load_nec_decode(void) { }
#endif
/* from ir-rc5-decoder.c */
#ifdef CONFIG_IR_RC5_DECODER_MODULE
#define load_rc5_decode() request_module("ir-rc5-decoder")
#else
static inline void load_rc5_decode(void) { }
#endif
/* from ir-rc6-decoder.c */
#ifdef CONFIG_IR_RC6_DECODER_MODULE
#define load_rc6_decode() request_module("ir-rc6-decoder")
#else
static inline void load_rc6_decode(void) { }
#endif
/* from ir-jvc-decoder.c */
#ifdef CONFIG_IR_JVC_DECODER_MODULE
#define load_jvc_decode() request_module("ir-jvc-decoder")
#else
static inline void load_jvc_decode(void) { }
#endif
/* from ir-sony-decoder.c */
#ifdef CONFIG_IR_SONY_DECODER_MODULE
#define load_sony_decode() request_module("ir-sony-decoder")
#else
static inline void load_sony_decode(void) { }
#endif
/* from ir-mce_kbd-decoder.c */
#ifdef CONFIG_IR_MCE_KBD_DECODER_MODULE
#define load_mce_kbd_decode() request_module("ir-mce_kbd-decoder")
#else
static inline void load_mce_kbd_decode(void) { }
#endif
/* from ir-lirc-codec.c */
#ifdef CONFIG_IR_LIRC_CODEC_MODULE
#define load_lirc_codec() request_module("ir-lirc-codec")
#else
static inline void load_lirc_codec(void) { }
#endif
#endif /* _RC_CORE_PRIV */
|
