libevdev.h

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/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2013 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 */

#ifndef LIBEVDEV_H
#define LIBEVDEV_H

#ifdef __cplusplus
extern "C" {
#endif

#include <linux/input.h>
#include <stdarg.h>

#define LIBEVDEV_ATTRIBUTE_PRINTF(_format, _args) __attribute__ ((format (printf, _format, _args)))

struct libevdev;

enum libevdev_read_flag {
        LIBEVDEV_READ_FLAG_SYNC         = 1, 
        LIBEVDEV_READ_FLAG_NORMAL       = 2, 
        LIBEVDEV_READ_FLAG_FORCE_SYNC   = 4, 
        LIBEVDEV_READ_FLAG_BLOCKING     = 8  
};

struct libevdev* libevdev_new(void);

int libevdev_new_from_fd(int fd, struct libevdev **dev);

void libevdev_free(struct libevdev *dev);

enum libevdev_log_priority {
        LIBEVDEV_LOG_ERROR = 10,        
        LIBEVDEV_LOG_INFO  = 20,        
        LIBEVDEV_LOG_DEBUG = 30         
};

typedef void (*libevdev_log_func_t)(enum libevdev_log_priority priority,
                                    void *data,
                                    const char *file, int line,
                                    const char *func,
                                    const char *format, va_list args)
        LIBEVDEV_ATTRIBUTE_PRINTF(6, 0);

void libevdev_set_log_function(libevdev_log_func_t logfunc, void *data);

void libevdev_set_log_priority(enum libevdev_log_priority priority);

enum libevdev_log_priority libevdev_get_log_priority(void);

typedef void (*libevdev_device_log_func_t)(const struct libevdev *dev,
                                           enum libevdev_log_priority priority,
                                           void *data,
                                           const char *file, int line,
                                           const char *func,
                                           const char *format, va_list args)
        LIBEVDEV_ATTRIBUTE_PRINTF(7, 0);

void libevdev_set_device_log_function(struct libevdev *dev,
                                      libevdev_device_log_func_t logfunc,
                                      enum libevdev_log_priority priority,
                                      void *data);

enum libevdev_grab_mode {
        LIBEVDEV_GRAB = 3,      
        LIBEVDEV_UNGRAB = 4     
};

int libevdev_grab(struct libevdev *dev, enum libevdev_grab_mode grab);

int libevdev_set_fd(struct libevdev* dev, int fd);

int libevdev_change_fd(struct libevdev* dev, int fd);

int libevdev_get_fd(const struct libevdev* dev);

int libevdev_upload_ff_effect(struct libevdev *dev, struct ff_effect *effect);

int libevdev_remove_ff_effect(struct libevdev *dev, short effect_id);

enum libevdev_read_status {
        LIBEVDEV_READ_STATUS_SUCCESS = 0,
        LIBEVDEV_READ_STATUS_SYNC = 1
};

int libevdev_next_event(struct libevdev *dev, unsigned int flags, struct input_event *ev);

int libevdev_has_event_pending(struct libevdev *dev);

const char* libevdev_get_name(const struct libevdev *dev);

void libevdev_set_name(struct libevdev *dev, const char *name);

const char * libevdev_get_phys(const struct libevdev *dev);

void libevdev_set_phys(struct libevdev *dev, const char *phys);

const char * libevdev_get_uniq(const struct libevdev *dev);

void libevdev_set_uniq(struct libevdev *dev, const char *uniq);

int libevdev_get_id_product(const struct libevdev *dev);

void libevdev_set_id_product(struct libevdev *dev, int product_id);

int libevdev_get_id_vendor(const struct libevdev *dev);

void libevdev_set_id_vendor(struct libevdev *dev, int vendor_id);

int libevdev_get_id_bustype(const struct libevdev *dev);

void libevdev_set_id_bustype(struct libevdev *dev, int bustype);

int libevdev_get_id_version(const struct libevdev *dev);

void libevdev_set_id_version(struct libevdev *dev, int version);

int libevdev_get_driver_version(const struct libevdev *dev);

int libevdev_has_property(const struct libevdev *dev, unsigned int prop);

int libevdev_enable_property(struct libevdev *dev, unsigned int prop);

int libevdev_disable_property(struct libevdev *dev, unsigned int prop);

int libevdev_has_event_type(const struct libevdev *dev, unsigned int type);

int libevdev_has_event_code(const struct libevdev *dev, unsigned int type, unsigned int code);

int libevdev_get_abs_minimum(const struct libevdev *dev, unsigned int code);

int libevdev_get_abs_maximum(const struct libevdev *dev, unsigned int code);

int libevdev_get_abs_fuzz(const struct libevdev *dev, unsigned int code);

int libevdev_get_abs_flat(const struct libevdev *dev, unsigned int code);

int libevdev_get_abs_resolution(const struct libevdev *dev, unsigned int code);

const struct input_absinfo* libevdev_get_abs_info(const struct libevdev *dev, unsigned int code);

int libevdev_get_event_value(const struct libevdev *dev, unsigned int type, unsigned int code);

int libevdev_set_event_value(struct libevdev *dev, unsigned int type, unsigned int code, int value);

int libevdev_fetch_event_value(const struct libevdev *dev, unsigned int type, unsigned int code, int *value);

int libevdev_get_slot_value(const struct libevdev *dev, unsigned int slot, unsigned int code);

int libevdev_set_slot_value(struct libevdev *dev, unsigned int slot, unsigned int code, int value);

int libevdev_fetch_slot_value(const struct libevdev *dev, unsigned int slot, unsigned int code, int *value);

int libevdev_get_num_slots(const struct libevdev *dev);

int libevdev_get_current_slot(const struct libevdev *dev);

void libevdev_set_abs_minimum(struct libevdev *dev, unsigned int code, int val);

void libevdev_set_abs_maximum(struct libevdev *dev, unsigned int code, int val);

void libevdev_set_abs_fuzz(struct libevdev *dev, unsigned int code, int val);

void libevdev_set_abs_flat(struct libevdev *dev, unsigned int code, int val);

void libevdev_set_abs_resolution(struct libevdev *dev, unsigned int code, int val);

void libevdev_set_abs_info(struct libevdev *dev, unsigned int code, const struct input_absinfo *abs);

int libevdev_enable_event_type(struct libevdev *dev, unsigned int type);

int libevdev_disable_event_type(struct libevdev *dev, unsigned int type);

int libevdev_enable_event_code(struct libevdev *dev, unsigned int type, unsigned int code, const void *data);

int libevdev_disable_event_code(struct libevdev *dev, unsigned int type, unsigned int code);

int libevdev_kernel_set_abs_info(struct libevdev *dev, unsigned int code, const struct input_absinfo *abs);

enum libevdev_led_value {
        LIBEVDEV_LED_ON = 3, 
        LIBEVDEV_LED_OFF = 4 
};

int libevdev_kernel_set_led_value(struct libevdev *dev, unsigned int code, enum libevdev_led_value value);

int libevdev_kernel_set_led_values(struct libevdev *dev, ...);

int libevdev_set_clock_id(struct libevdev *dev, int clockid);

int libevdev_event_is_type(const struct input_event *ev, unsigned int type);

int libevdev_event_is_code(const struct input_event *ev, unsigned int type, unsigned int code);

const char * libevdev_event_type_get_name(unsigned int type);
const char * libevdev_event_code_get_name(unsigned int type, unsigned int code);

const char * libevdev_event_value_get_name(unsigned int type,
                                           unsigned int code,
                                           int value);
const char* libevdev_property_get_name(unsigned int prop);

int libevdev_event_type_get_max(unsigned int type);

int libevdev_event_type_from_name(const char *name);

int libevdev_event_type_from_name_n(const char *name, size_t len);

int libevdev_event_code_from_name(unsigned int type, const char *name);

int libevdev_event_code_from_name_n(unsigned int type, const char *name,
                                    size_t len);

int libevdev_event_value_from_name(unsigned int type, unsigned int code,
                                   const char *name);

int
libevdev_event_type_from_code_name(const char *name);

int
libevdev_event_type_from_code_name_n(const char *name, size_t len);

int
libevdev_event_code_from_code_name(const char *name);

int
libevdev_event_code_from_code_name_n(const char *name, size_t len);

int libevdev_event_value_from_name_n(unsigned int type, unsigned int code,
                                     const char *name, size_t len);

int libevdev_property_from_name(const char *name);

int libevdev_property_from_name_n(const char *name, size_t len);

int libevdev_get_repeat(const struct libevdev *dev, int *delay, int *period);

/********* DEPRECATED SECTION *********/
#if defined(__GNUC__) && __GNUC__ >= 4
#define LIBEVDEV_DEPRECATED __attribute__ ((deprecated))
#else
#define LIBEVDEV_DEPRECATED
#endif

#ifdef __cplusplus
}
#endif

#endif /* LIBEVDEV_H */