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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 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
30} while (0)
31
32enum rc_driver_type {
33 RC_DRIVER_SCANCODE = 0,
34 RC_DRIVER_IR_RAW,
35};
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41
42struct rc_scancode_filter {
43 u32 data;
44 u32 mask;
45};
46
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51
52
53enum rc_filter_type {
54 RC_FILTER_NORMAL = 0,
55 RC_FILTER_WAKEUP,
56
57 RC_FILTER_MAX
58};
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122struct rc_dev {
123 struct device dev;
124 const struct attribute_group *sysfs_groups[5];
125 const char *input_name;
126 const char *input_phys;
127 struct input_id input_id;
128 char *driver_name;
129 const char *map_name;
130 struct rc_map rc_map;
131 struct mutex lock;
132 unsigned long devno;
133 struct ir_raw_event_ctrl *raw;
134 struct input_dev *input_dev;
135 enum rc_driver_type driver_type;
136 bool idle;
137 u64 allowed_protocols;
138 u64 enabled_protocols;
139 u64 allowed_wakeup_protocols;
140 u64 enabled_wakeup_protocols;
141 struct rc_scancode_filter scancode_filter;
142 struct rc_scancode_filter scancode_wakeup_filter;
143 u32 scancode_mask;
144 u32 users;
145 void *priv;
146 spinlock_t keylock;
147 bool keypressed;
148 unsigned long keyup_jiffies;
149 struct timer_list timer_keyup;
150 u32 last_keycode;
151 enum rc_type last_protocol;
152 u32 last_scancode;
153 u8 last_toggle;
154 u32 timeout;
155 u32 min_timeout;
156 u32 max_timeout;
157 u32 rx_resolution;
158 u32 tx_resolution;
159 int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
160 int (*change_wakeup_protocol)(struct rc_dev *dev, u64 *rc_type);
161 int (*open)(struct rc_dev *dev);
162 void (*close)(struct rc_dev *dev);
163 int (*s_tx_mask)(struct rc_dev *dev, u32 mask);
164 int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier);
165 int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle);
166 int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max);
167 int (*tx_ir)(struct rc_dev *dev, unsigned *txbuf, unsigned n);
168 void (*s_idle)(struct rc_dev *dev, bool enable);
169 int (*s_learning_mode)(struct rc_dev *dev, int enable);
170 int (*s_carrier_report) (struct rc_dev *dev, int enable);
171 int (*s_filter)(struct rc_dev *dev,
172 struct rc_scancode_filter *filter);
173 int (*s_wakeup_filter)(struct rc_dev *dev,
174 struct rc_scancode_filter *filter);
175};
176
177#define to_rc_dev(d) container_of(d, struct rc_dev, dev)
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186struct rc_dev *rc_allocate_device(void);
187void rc_free_device(struct rc_dev *dev);
188int rc_register_device(struct rc_dev *dev);
189void rc_unregister_device(struct rc_dev *dev);
190
191int rc_open(struct rc_dev *rdev);
192void rc_close(struct rc_dev *rdev);
193
194void rc_repeat(struct rc_dev *dev);
195void rc_keydown(struct rc_dev *dev, enum rc_type protocol, u32 scancode, u8 toggle);
196void rc_keydown_notimeout(struct rc_dev *dev, enum rc_type protocol, u32 scancode, u8 toggle);
197void rc_keyup(struct rc_dev *dev);
198u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode);
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205
206enum raw_event_type {
207 IR_SPACE = (1 << 0),
208 IR_PULSE = (1 << 1),
209 IR_START_EVENT = (1 << 2),
210 IR_STOP_EVENT = (1 << 3),
211};
212
213struct ir_raw_event {
214 union {
215 u32 duration;
216
217 struct {
218 u32 carrier;
219 u8 duty_cycle;
220 };
221 };
222
223 unsigned pulse:1;
224 unsigned reset:1;
225 unsigned timeout:1;
226 unsigned carrier_report:1;
227};
228
229#define DEFINE_IR_RAW_EVENT(event) \
230 struct ir_raw_event event = { \
231 { .duration = 0 } , \
232 .pulse = 0, \
233 .reset = 0, \
234 .timeout = 0, \
235 .carrier_report = 0 }
236
237static inline void init_ir_raw_event(struct ir_raw_event *ev)
238{
239 memset(ev, 0, sizeof(*ev));
240}
241
242#define IR_MAX_DURATION 0xFFFFFFFF
243#define US_TO_NS(usec) ((usec) * 1000)
244#define MS_TO_US(msec) ((msec) * 1000)
245#define MS_TO_NS(msec) ((msec) * 1000 * 1000)
246
247void ir_raw_event_handle(struct rc_dev *dev);
248int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev);
249int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type);
250int ir_raw_event_store_with_filter(struct rc_dev *dev,
251 struct ir_raw_event *ev);
252void ir_raw_event_set_idle(struct rc_dev *dev, bool idle);
253
254static inline void ir_raw_event_reset(struct rc_dev *dev)
255{
256 DEFINE_IR_RAW_EVENT(ev);
257 ev.reset = true;
258
259 ir_raw_event_store(dev, &ev);
260 ir_raw_event_handle(dev);
261}
262
263
264static inline u32 ir_extract_bits(u32 data, u32 mask)
265{
266 u32 vbit = 1, value = 0;
267
268 do {
269 if (mask & 1) {
270 if (data & 1)
271 value |= vbit;
272 vbit <<= 1;
273 }
274 data >>= 1;
275 } while (mask >>= 1);
276
277 return value;
278}
279
280#endif
281