From a3255d3ec78c80918daac7f001dbb246a5970552 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 27 May 2013 14:59:41 +1000 Subject: libevdev is a library to handle evdev devices Two main goals of this library: - 'transparently' handle SYN_DROPPED events - avoid errors in ioctl handling by providing a simpler interface. Keeps a cached copy of the device for quick querying. Signed-off-by: Peter Hutterer --- libevdev/libevdev-int.h | 66 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 libevdev/libevdev-int.h (limited to 'libevdev/libevdev-int.h') diff --git a/libevdev/libevdev-int.h b/libevdev/libevdev-int.h new file mode 100644 index 0000000..c86a656 --- /dev/null +++ b/libevdev/libevdev-int.h @@ -0,0 +1,66 @@ +/* + * Copyright © 2013 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef libevdev_INT_H +#define libevdev_INT_H + +#include +#include "libevdev.h" + +#define LONG_BITS (sizeof(long) * 8) +#define NLONGS(x) (((x) + LONG_BITS - 1) / LONG_BITS) +#define ARRAY_LENGTH(a) (sizeof(a) / (sizeof((a)[0]))) +#define MAX_NAME 256 +#define MAX_SLOTS 32 +#define ABS_MT_MIN ABS_MT_SLOT +#define ABS_MT_MAX ABS_MT_TOOL_Y +#define ABS_MT_CNT (ABS_MT_MAX - ABS_MT_MIN + 1) + +struct libevdev { + int fd; + libevdev_callback_proc callback; + libevdev_callback_proc sync_callback; + void *userdata; + + char name[MAX_NAME]; + struct input_id ids; + unsigned long bits[NLONGS(EV_CNT)]; + unsigned long props[NLONGS(INPUT_PROP_CNT)]; + unsigned long key_bits[NLONGS(KEY_CNT)]; + unsigned long rel_bits[NLONGS(REL_CNT)]; + unsigned long abs_bits[NLONGS(ABS_CNT)]; + unsigned long led_bits[NLONGS(LED_CNT)]; + unsigned long key_values[NLONGS(KEY_CNT)]; + struct input_absinfo abs_info[ABS_CNT]; + unsigned int mt_slot_vals[MAX_SLOTS][ABS_MT_CNT]; + int num_slots; /**< valid slots in mt_slot_vals */ + + int need_sync; + int grabbed; + + struct input_event *queue; + size_t queue_size; /**< size of queue in elements */ + size_t queue_next; /**< next event index */ +}; + +#endif + -- cgit v1.2.1