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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, arg...) if (rc_core_debug >= level) \
27 printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
28
29enum rc_driver_type {
30 RC_DRIVER_SCANCODE = 0,
31 RC_DRIVER_IR_RAW,
32};
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84struct rc_dev {
85 struct device dev;
86 const char *input_name;
87 const char *input_phys;
88 struct input_id input_id;
89 char *driver_name;
90 const char *map_name;
91 struct rc_map rc_map;
92 struct mutex lock;
93 unsigned long devno;
94 struct ir_raw_event_ctrl *raw;
95 struct input_dev *input_dev;
96 enum rc_driver_type driver_type;
97 bool idle;
98 u64 allowed_protos;
99 u32 scanmask;
100 void *priv;
101 spinlock_t keylock;
102 bool keypressed;
103 unsigned long keyup_jiffies;
104 struct timer_list timer_keyup;
105 u32 last_keycode;
106 u32 last_scancode;
107 u8 last_toggle;
108 u32 timeout;
109 u32 min_timeout;
110 u32 max_timeout;
111 u32 rx_resolution;
112 u32 tx_resolution;
113 int (*change_protocol)(struct rc_dev *dev, u64 rc_type);
114 int (*open)(struct rc_dev *dev);
115 void (*close)(struct rc_dev *dev);
116 int (*s_tx_mask)(struct rc_dev *dev, u32 mask);
117 int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier);
118 int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle);
119 int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max);
120 int (*tx_ir)(struct rc_dev *dev, int *txbuf, u32 n);
121 void (*s_idle)(struct rc_dev *dev, bool enable);
122 int (*s_learning_mode)(struct rc_dev *dev, int enable);
123 int (*s_carrier_report) (struct rc_dev *dev, int enable);
124};
125
126#define to_rc_dev(d) container_of(d, struct rc_dev, dev)
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135struct rc_dev *rc_allocate_device(void);
136void rc_free_device(struct rc_dev *dev);
137int rc_register_device(struct rc_dev *dev);
138void rc_unregister_device(struct rc_dev *dev);
139
140void rc_repeat(struct rc_dev *dev);
141void rc_keydown(struct rc_dev *dev, int scancode, u8 toggle);
142void rc_keydown_notimeout(struct rc_dev *dev, int scancode, u8 toggle);
143void rc_keyup(struct rc_dev *dev);
144u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode);
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151
152enum raw_event_type {
153 IR_SPACE = (1 << 0),
154 IR_PULSE = (1 << 1),
155 IR_START_EVENT = (1 << 2),
156 IR_STOP_EVENT = (1 << 3),
157};
158
159struct ir_raw_event {
160 union {
161 u32 duration;
162
163 struct {
164 u32 carrier;
165 u8 duty_cycle;
166 };
167 };
168
169 unsigned pulse:1;
170 unsigned reset:1;
171 unsigned timeout:1;
172 unsigned carrier_report:1;
173};
174
175#define DEFINE_IR_RAW_EVENT(event) \
176 struct ir_raw_event event = { \
177 { .duration = 0 } , \
178 .pulse = 0, \
179 .reset = 0, \
180 .timeout = 0, \
181 .carrier_report = 0 }
182
183static inline void init_ir_raw_event(struct ir_raw_event *ev)
184{
185 memset(ev, 0, sizeof(*ev));
186}
187
188#define IR_MAX_DURATION 0xFFFFFFFF
189#define US_TO_NS(usec) ((usec) * 1000)
190#define MS_TO_US(msec) ((msec) * 1000)
191#define MS_TO_NS(msec) ((msec) * 1000 * 1000)
192
193void ir_raw_event_handle(struct rc_dev *dev);
194int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev);
195int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type);
196int ir_raw_event_store_with_filter(struct rc_dev *dev,
197 struct ir_raw_event *ev);
198void ir_raw_event_set_idle(struct rc_dev *dev, bool idle);
199
200static inline void ir_raw_event_reset(struct rc_dev *dev)
201{
202 DEFINE_IR_RAW_EVENT(ev);
203 ev.reset = true;
204
205 ir_raw_event_store(dev, &ev);
206 ir_raw_event_handle(dev);
207}
208
209
210static inline u32 ir_extract_bits(u32 data, u32 mask)
211{
212 u32 vbit = 1, value = 0;
213
214 do {
215 if (mask & 1) {
216 if (data & 1)
217 value |= vbit;
218 vbit <<= 1;
219 }
220 data >>= 1;
221 } while (mask >>= 1);
222
223 return value;
224}
225
226#endif
227
