2 * Remote Controller core header
4 * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
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.
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.
19 #include <linux/input.h>
20 #include <linux/spinlock.h>
21 #include <linux/kfifo.h>
22 #include <linux/time.h>
23 #include <linux/timer.h>
24 #include <media/rc-map.h>
26 extern int ir_core_debug;
27 #define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
28 printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
30 #define IR_TYPE_UNKNOWN 0
31 #define IR_TYPE_RC5 (1 << 0) /* Philips RC5 protocol */
32 #define IR_TYPE_PD (1 << 1) /* Pulse distance encoded IR */
33 #define IR_TYPE_NEC (1 << 2)
34 #define IR_TYPE_OTHER (((u64)1) << 63l)
39 IR_START_EVENT = (1 << 2),
40 IR_STOP_EVENT = (1 << 3),
48 struct ir_scancode_table {
49 struct ir_scancode *scan;
57 struct list_head list;
58 struct ir_scancode_table map;
62 unsigned long allowed_protos;
64 int (*change_protocol)(void *priv, u64 ir_type);
65 int (*open)(void *priv);
66 void (*close)(void *priv);
70 struct timespec delta; /* Time spent before event */
71 enum raw_event_type type; /* event type */
74 struct ir_raw_event_ctrl {
75 struct kfifo kfifo; /* fifo for the pulse/space events */
76 struct timespec last_event; /* when last event occurred */
77 struct timer_list timer_keyup; /* timer for key release */
81 struct device dev; /* device */
82 char *driver_name; /* Name of the driver module */
83 struct ir_scancode_table rc_tab; /* scan/key table */
84 unsigned long devno; /* device number */
85 const struct ir_dev_props *props; /* Device properties */
86 struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
88 /* key info - needed by IR keycode handlers */
89 u32 keycode; /* linux key code */
90 int keypressed; /* current state */
93 struct ir_raw_handler {
94 struct list_head list;
96 int (*decode)(struct input_dev *input_dev,
97 struct ir_raw_event *evs,
99 int (*raw_register)(struct input_dev *input_dev);
100 int (*raw_unregister)(struct input_dev *input_dev);
103 #define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
105 /* Routines from rc-map.c */
107 int ir_register_map(struct rc_keymap *map);
108 void ir_unregister_map(struct rc_keymap *map);
109 struct ir_scancode_table *get_rc_map(const char *name);
110 void rc_map_init(void);
112 /* Routines from ir-keytable.c */
114 u32 ir_g_keycode_from_table(struct input_dev *input_dev,
116 void ir_keyup(struct input_dev *dev);
117 void ir_keydown(struct input_dev *dev, int scancode);
118 int __ir_input_register(struct input_dev *dev,
119 const struct ir_scancode_table *ir_codes,
120 const struct ir_dev_props *props,
121 const char *driver_name);
123 static inline int ir_input_register(struct input_dev *dev,
124 const char *map_name,
125 const struct ir_dev_props *props,
126 const char *driver_name) {
127 struct ir_scancode_table *ir_codes;
128 struct ir_input_dev *ir_dev;
134 ir_codes = get_rc_map(map_name);
138 rc = __ir_input_register(dev, ir_codes, props, driver_name);
142 ir_dev = input_get_drvdata(dev);
144 if (!rc && ir_dev->props && ir_dev->props->change_protocol)
145 rc = ir_dev->props->change_protocol(ir_dev->props->priv,
151 void ir_input_unregister(struct input_dev *input_dev);
153 /* Routines from ir-sysfs.c */
155 int ir_register_class(struct input_dev *input_dev);
156 void ir_unregister_class(struct input_dev *input_dev);
158 /* Routines from ir-raw-event.c */
159 int ir_raw_event_register(struct input_dev *input_dev);
160 void ir_raw_event_unregister(struct input_dev *input_dev);
161 int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
162 int ir_raw_event_handle(struct input_dev *input_dev);
163 int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
164 void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
165 void ir_raw_init(void);
167 /* from ir-nec-decoder.c */
168 #ifdef CONFIG_IR_NEC_DECODER_MODULE
169 #define load_nec_decode() request_module("ir-nec-decoder")
171 #define load_nec_decode() 0
174 #endif /* _IR_CORE */