1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16#ifndef _RC_CORE
17#define _RC_CORE
18
19#include <linux/spinlock.h>
20#include <linux/kfifo.h>
21#include <linux/time.h>
22#include <linux/timer.h>
23#include <media/rc-map.h>
24
25extern int rc_core_debug;
26#define IR_dprintk(level, fmt, ...) \
27do { \
28 if (rc_core_debug >= level) \
29 pr_debug("%s: " fmt, __func__, ##__VA_ARGS__); \
30} while (0)
31
32enum rc_driver_type {
33 RC_DRIVER_SCANCODE = 0,
34 RC_DRIVER_IR_RAW,
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
88struct rc_dev {
89 struct device dev;
90 const char *input_name;
91 const char *input_phys;
92 struct input_id input_id;
93 char *driver_name;
94 const char *map_name;
95 struct rc_map rc_map;
96 struct mutex lock;
97 unsigned long devno;
98 struct ir_raw_event_ctrl *raw;
99 struct input_dev *input_dev;
100 enum rc_driver_type driver_type;
101 bool idle;
102 u64 allowed_protos;
103 u64 enabled_protocols;
104 u32 users;
105 u32 scanmask;
106 void *priv;
107 spinlock_t keylock;
108 bool keypressed;
109 unsigned long keyup_jiffies;
110 struct timer_list timer_keyup;
111 u32 last_keycode;
112 u32 last_scancode;
113 u8 last_toggle;
114 u32 timeout;
115 u32 min_timeout;
116 u32 max_timeout;
117 u32 rx_resolution;
118 u32 tx_resolution;
119 int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
120 int (*open)(struct rc_dev *dev);
121 void (*close)(struct rc_dev *dev);
122 int (*s_tx_mask)(struct rc_dev *dev, u32 mask);
123 int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier);
124 int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle);
125 int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max);
126 int (*tx_ir)(struct rc_dev *dev, unsigned *txbuf, unsigned n);
127 void (*s_idle)(struct rc_dev *dev, bool enable);
128 int (*s_learning_mode)(struct rc_dev *dev, int enable);
129 int (*s_carrier_report) (struct rc_dev *dev, int enable);
130};
131
132#define to_rc_dev(d) container_of(d, struct rc_dev, dev)
133
134
135
136
137
138
139
140
141struct rc_dev *rc_allocate_device(void);
142void rc_free_device(struct rc_dev *dev);
143int rc_register_device(struct rc_dev *dev);
144void rc_unregister_device(struct rc_dev *dev);
145
146int rc_open(struct rc_dev *rdev);
147void rc_close(struct rc_dev *rdev);
148
149void rc_repeat(struct rc_dev *dev);
150void rc_keydown(struct rc_dev *dev, int scancode, u8 toggle);
151void rc_keydown_notimeout(struct rc_dev *dev, int scancode, u8 toggle);
152void rc_keyup(struct rc_dev *dev);
153u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode);
154
155
156
157
158
159
160
161enum raw_event_type {
162 IR_SPACE = (1 << 0),
163 IR_PULSE = (1 << 1),
164 IR_START_EVENT = (1 << 2),
165 IR_STOP_EVENT = (1 << 3),
166};
167
168struct ir_raw_event {
169 union {
170 u32 duration;
171
172 struct {
173 u32 carrier;
174 u8 duty_cycle;
175 };
176 };
177
178 unsigned pulse:1;
179 unsigned reset:1;
180 unsigned timeout:1;
181 unsigned carrier_report:1;
182};
183
184#define DEFINE_IR_RAW_EVENT(event) \
185 struct ir_raw_event event = { \
186 { .duration = 0 } , \
187 .pulse = 0, \
188 .reset = 0, \
189 .timeout = 0, \
190 .carrier_report = 0 }
191
192static inline void init_ir_raw_event(struct ir_raw_event *ev)
193{
194 memset(ev, 0, sizeof(*ev));
195}
196
197#define IR_MAX_DURATION 0xFFFFFFFF
198#define US_TO_NS(usec) ((usec) * 1000)
199#define MS_TO_US(msec) ((msec) * 1000)
200#define MS_TO_NS(msec) ((msec) * 1000 * 1000)
201
202void ir_raw_event_handle(struct rc_dev *dev);
203int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev);
204int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type);
205int ir_raw_event_store_with_filter(struct rc_dev *dev,
206 struct ir_raw_event *ev);
207void ir_raw_event_set_idle(struct rc_dev *dev, bool idle);
208
209static inline void ir_raw_event_reset(struct rc_dev *dev)
210{
211 DEFINE_IR_RAW_EVENT(ev);
212 ev.reset = true;
213
214 ir_raw_event_store(dev, &ev);
215 ir_raw_event_handle(dev);
216}
217
218
219static inline u32 ir_extract_bits(u32 data, u32 mask)
220{
221 u32 vbit = 1, value = 0;
222
223 do {
224 if (mask & 1) {
225 if (data & 1)
226 value |= vbit;
227 vbit <<= 1;
228 }
229 data >>= 1;
230 } while (mask >>= 1);
231
232 return value;
233}
234
235#endif
236
