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/spinlock.h>
20 #include <linux/kfifo.h>
21 #include <linux/time.h>
22 #include <linux/timer.h>
23 #include <media/rc-map.h>
25 extern int ir_core_debug;
26 #define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
27 printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
32 IR_START_EVENT = (1 << 2),
33 IR_STOP_EVENT = (1 << 3),
37 unsigned long allowed_protos;
39 int (*change_protocol)(void *priv, u64 ir_type);
40 int (*open)(void *priv);
41 void (*close)(void *priv);
45 struct timespec delta; /* Time spent before event */
46 enum raw_event_type type; /* event type */
49 struct ir_raw_event_ctrl {
50 struct kfifo kfifo; /* fifo for the pulse/space events */
51 struct timespec last_event; /* when last event occurred */
55 struct device dev; /* device */
56 char *driver_name; /* Name of the driver module */
57 struct ir_scancode_table rc_tab; /* scan/key table */
58 unsigned long devno; /* device number */
59 const struct ir_dev_props *props; /* Device properties */
60 struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
61 struct input_dev *input_dev; /* the input device associated with this device */
63 /* key info - needed by IR keycode handlers */
64 spinlock_t keylock; /* protects the below members */
65 bool keypressed; /* current state */
66 unsigned long keyup_jiffies; /* when should the current keypress be released? */
67 struct timer_list timer_keyup; /* timer for releasing a keypress */
68 u32 last_keycode; /* keycode of last command */
69 u32 last_scancode; /* scancode of last command */
70 u8 last_toggle; /* toggle of last command */
73 struct ir_raw_handler {
74 struct list_head list;
76 int (*decode)(struct input_dev *input_dev,
77 struct ir_raw_event *ev);
78 int (*raw_register)(struct input_dev *input_dev);
79 int (*raw_unregister)(struct input_dev *input_dev);
82 #define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
84 /* Routines from ir-keytable.c */
86 u32 ir_g_keycode_from_table(struct input_dev *input_dev,
88 void ir_repeat(struct input_dev *dev);
89 void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
90 int __ir_input_register(struct input_dev *dev,
91 const struct ir_scancode_table *ir_codes,
92 const struct ir_dev_props *props,
93 const char *driver_name);
95 static inline int ir_input_register(struct input_dev *dev,
97 const struct ir_dev_props *props,
98 const char *driver_name) {
99 struct ir_scancode_table *ir_codes;
100 struct ir_input_dev *ir_dev;
106 ir_codes = get_rc_map(map_name);
110 rc = __ir_input_register(dev, ir_codes, props, driver_name);
114 ir_dev = input_get_drvdata(dev);
116 if (!rc && ir_dev->props && ir_dev->props->change_protocol)
117 rc = ir_dev->props->change_protocol(ir_dev->props->priv,
123 void ir_input_unregister(struct input_dev *input_dev);
125 /* Routines from ir-sysfs.c */
127 int ir_register_class(struct input_dev *input_dev);
128 void ir_unregister_class(struct input_dev *input_dev);
130 /* Routines from ir-raw-event.c */
131 int ir_raw_event_register(struct input_dev *input_dev);
132 void ir_raw_event_unregister(struct input_dev *input_dev);
133 int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
134 int ir_raw_event_handle(struct input_dev *input_dev);
135 int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
136 void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
137 void ir_raw_init(void);
139 /* from ir-nec-decoder.c */
140 #ifdef CONFIG_IR_NEC_DECODER_MODULE
141 #define load_nec_decode() request_module("ir-nec-decoder")
143 #define load_nec_decode() 0
146 /* from ir-rc5-decoder.c */
147 #ifdef CONFIG_IR_RC5_DECODER_MODULE
148 #define load_rc5_decode() request_module("ir-rc5-decoder")
150 #define load_rc5_decode() 0
153 #endif /* _IR_CORE */