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;
50 unsigned int size; /* Max number of entries */
51 unsigned int len; /* Used number of entries */
52 unsigned int alloc; /* Size of *scan in bytes */
59 struct list_head list;
60 struct ir_scancode_table map;
64 unsigned long allowed_protos;
66 int (*change_protocol)(void *priv, u64 ir_type);
67 int (*open)(void *priv);
68 void (*close)(void *priv);
72 struct timespec delta; /* Time spent before event */
73 enum raw_event_type type; /* event type */
76 struct ir_raw_event_ctrl {
77 struct kfifo kfifo; /* fifo for the pulse/space events */
78 struct timespec last_event; /* when last event occurred */
82 struct device dev; /* device */
83 char *driver_name; /* Name of the driver module */
84 struct ir_scancode_table rc_tab; /* scan/key table */
85 unsigned long devno; /* device number */
86 const struct ir_dev_props *props; /* Device properties */
87 struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
88 struct input_dev *input_dev; /* the input device associated with this device */
90 /* key info - needed by IR keycode handlers */
91 spinlock_t keylock; /* protects the below members */
92 bool keypressed; /* current state */
93 unsigned long keyup_jiffies; /* when should the current keypress be released? */
94 struct timer_list timer_keyup; /* timer for releasing a keypress */
95 u32 last_keycode; /* keycode of last command */
96 u32 last_scancode; /* scancode of last command */
97 u8 last_toggle; /* toggle of last command */
100 struct ir_raw_handler {
101 struct list_head list;
103 int (*decode)(struct input_dev *input_dev,
104 struct ir_raw_event *evs,
106 int (*raw_register)(struct input_dev *input_dev);
107 int (*raw_unregister)(struct input_dev *input_dev);
110 #define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
112 /* Routines from rc-map.c */
114 int ir_register_map(struct rc_keymap *map);
115 void ir_unregister_map(struct rc_keymap *map);
116 struct ir_scancode_table *get_rc_map(const char *name);
117 void rc_map_init(void);
119 /* Routines from ir-keytable.c */
121 u32 ir_g_keycode_from_table(struct input_dev *input_dev,
123 void ir_repeat(struct input_dev *dev);
124 void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
125 int __ir_input_register(struct input_dev *dev,
126 const struct ir_scancode_table *ir_codes,
127 const struct ir_dev_props *props,
128 const char *driver_name);
130 static inline int ir_input_register(struct input_dev *dev,
131 const char *map_name,
132 const struct ir_dev_props *props,
133 const char *driver_name) {
134 struct ir_scancode_table *ir_codes;
135 struct ir_input_dev *ir_dev;
141 ir_codes = get_rc_map(map_name);
145 rc = __ir_input_register(dev, ir_codes, props, driver_name);
149 ir_dev = input_get_drvdata(dev);
151 if (!rc && ir_dev->props && ir_dev->props->change_protocol)
152 rc = ir_dev->props->change_protocol(ir_dev->props->priv,
158 void ir_input_unregister(struct input_dev *input_dev);
160 /* Routines from ir-sysfs.c */
162 int ir_register_class(struct input_dev *input_dev);
163 void ir_unregister_class(struct input_dev *input_dev);
165 /* Routines from ir-raw-event.c */
166 int ir_raw_event_register(struct input_dev *input_dev);
167 void ir_raw_event_unregister(struct input_dev *input_dev);
168 int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
169 int ir_raw_event_handle(struct input_dev *input_dev);
170 int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
171 void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
172 void ir_raw_init(void);
174 /* from ir-nec-decoder.c */
175 #ifdef CONFIG_IR_NEC_DECODER_MODULE
176 #define load_nec_decode() request_module("ir-nec-decoder")
178 #define load_nec_decode() 0
181 /* from ir-rc5-decoder.c */
182 #ifdef CONFIG_IR_RC5_DECODER_MODULE
183 #define load_rc5_decode() request_module("ir-rc5-decoder")
185 #define load_rc5_decode() 0
188 #endif /* _IR_CORE */