kernel-fxtec-pro1x/include/media/ir-core.h
Mauro Carvalho Chehab 9ce50c1a5f V4L/DVB: ir-core: Add support for RC map code register
Instead of having all RC tables hardcoded on one file with
all tables there, add infrastructure for registering and dynamically
load the table(s) when needed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:56:49 -03:00

161 lines
4.6 KiB
C

/*
* Remote Controller core header
*
* Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _IR_CORE
#define _IR_CORE
#include <linux/input.h>
#include <linux/spinlock.h>
#include <linux/kfifo.h>
#include <linux/time.h>
#include <linux/timer.h>
extern int ir_core_debug;
#define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
#define IR_TYPE_UNKNOWN 0
#define IR_TYPE_RC5 (1 << 0) /* Philips RC5 protocol */
#define IR_TYPE_PD (1 << 1) /* Pulse distance encoded IR */
#define IR_TYPE_NEC (1 << 2)
#define IR_TYPE_OTHER (((u64)1) << 63l)
enum raw_event_type {
IR_SPACE = (1 << 0),
IR_PULSE = (1 << 1),
IR_START_EVENT = (1 << 2),
IR_STOP_EVENT = (1 << 3),
};
struct ir_scancode {
u16 scancode;
u32 keycode;
};
struct ir_scancode_table {
struct ir_scancode *scan;
int size;
u64 ir_type;
char *name;
spinlock_t lock;
};
struct rc_keymap {
struct list_head list;
struct ir_scancode_table map;
};
struct ir_dev_props {
unsigned long allowed_protos;
void *priv;
int (*change_protocol)(void *priv, u64 ir_type);
int (*open)(void *priv);
void (*close)(void *priv);
};
struct ir_raw_event {
struct timespec delta; /* Time spent before event */
enum raw_event_type type; /* event type */
};
struct ir_raw_event_ctrl {
struct kfifo kfifo; /* fifo for the pulse/space events */
struct timespec last_event; /* when last event occurred */
struct timer_list timer_keyup; /* timer for key release */
};
struct ir_input_dev {
struct device dev; /* device */
char *driver_name; /* Name of the driver module */
struct ir_scancode_table rc_tab; /* scan/key table */
unsigned long devno; /* device number */
const struct ir_dev_props *props; /* Device properties */
struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
/* key info - needed by IR keycode handlers */
u32 keycode; /* linux key code */
int keypressed; /* current state */
};
struct ir_raw_handler {
struct list_head list;
int (*decode)(struct input_dev *input_dev,
struct ir_raw_event *evs,
int len);
int (*raw_register)(struct input_dev *input_dev);
int (*raw_unregister)(struct input_dev *input_dev);
};
#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
#define IR_KEYTABLE(a) \
ir_codes_ ## a ## _table
#define DECLARE_IR_KEYTABLE(a) \
extern struct ir_scancode_table IR_KEYTABLE(a)
#define DEFINE_IR_KEYTABLE(tabname, type) \
struct ir_scancode_table IR_KEYTABLE(tabname) = { \
.scan = tabname, \
.size = ARRAY_SIZE(tabname), \
.ir_type = type, \
.name = #tabname, \
}; \
EXPORT_SYMBOL_GPL(IR_KEYTABLE(tabname))
#define DEFINE_LEGACY_IR_KEYTABLE(tabname) \
DEFINE_IR_KEYTABLE(tabname, IR_TYPE_UNKNOWN)
/* Routines from ir-keytable.c */
u32 ir_g_keycode_from_table(struct input_dev *input_dev,
u32 scancode);
void ir_keyup(struct input_dev *dev);
void ir_keydown(struct input_dev *dev, int scancode);
int ir_input_register(struct input_dev *dev,
const struct ir_scancode_table *ir_codes,
const struct ir_dev_props *props,
const char *driver_name);
void ir_input_unregister(struct input_dev *input_dev);
/* Routines from rc-map.c */
int ir_register_map(struct rc_keymap *map);
void ir_unregister_map(struct rc_keymap *map);
struct ir_scancode_table *get_rc_map(const char *name);
/* Routines from ir-sysfs.c */
int ir_register_class(struct input_dev *input_dev);
void ir_unregister_class(struct input_dev *input_dev);
/* Routines from ir-raw-event.c */
int ir_raw_event_register(struct input_dev *input_dev);
void ir_raw_event_unregister(struct input_dev *input_dev);
int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
int ir_raw_event_handle(struct input_dev *input_dev);
int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
void ir_raw_init(void);
/* from ir-nec-decoder.c */
#ifdef CONFIG_IR_NEC_DECODER_MODULE
#define load_nec_decode() request_module("ir-nec-decoder")
#else
#define load_nec_decode() 0
#endif
#endif /* _IR_CORE */