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/*
* Copyright © 2014 Red Hat, Inc.
* Copyright © 2014 Stephen Chandler "Lyude" Paul
*
* 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 EVDEV_TABLET_H
#define EVDEV_TABLET_H
#include "evdev.h"
#define LIBINPUT_TABLET_TOOL_AXIS_NONE 0
#define LIBINPUT_TOOL_NONE 0
#define LIBINPUT_TABLET_TOOL_TYPE_MAX LIBINPUT_TABLET_TOOL_TYPE_LENS
#define TABLET_HISTORY_LENGTH 4
enum tablet_status {
TABLET_NONE = 0,
TABLET_AXES_UPDATED = 1 << 0,
TABLET_BUTTONS_PRESSED = 1 << 1,
TABLET_BUTTONS_RELEASED = 1 << 2,
TABLET_TOOL_IN_CONTACT = 1 << 3,
TABLET_TOOL_LEAVING_PROXIMITY = 1 << 4,
TABLET_TOOL_OUT_OF_PROXIMITY = 1 << 5,
TABLET_TOOL_ENTERING_PROXIMITY = 1 << 6,
TABLET_TOOL_ENTERING_CONTACT = 1 << 7,
TABLET_TOOL_LEAVING_CONTACT = 1 << 8,
TABLET_TOOL_OUT_OF_RANGE = 1 << 9,
};
struct button_state {
unsigned char bits[NCHARS(KEY_CNT)];
};
struct tablet_dispatch {
struct evdev_dispatch base;
struct evdev_device *device;
unsigned int status;
unsigned char changed_axes[NCHARS(LIBINPUT_TABLET_TOOL_AXIS_MAX + 1)];
struct tablet_axes axes; /* for assembling the current state */
struct device_coords last_smooth_point;
struct {
unsigned int index;
unsigned int count;
struct tablet_axes samples[TABLET_HISTORY_LENGTH];
} history;
unsigned char axis_caps[NCHARS(LIBINPUT_TABLET_TOOL_AXIS_MAX + 1)];
int current_value[LIBINPUT_TABLET_TOOL_AXIS_MAX + 1];
int prev_value[LIBINPUT_TABLET_TOOL_AXIS_MAX + 1];
/* Only used for tablets that don't report serial numbers */
struct list tool_list;
struct button_state button_state;
struct button_state prev_button_state;
enum libinput_tablet_tool_type current_tool_type;
uint32_t current_tool_id;
uint32_t current_tool_serial;
uint32_t cursor_proximity_threshold;
struct libinput_device_config_calibration calibration;
/* The paired touch device on devices with both pen & touch */
struct evdev_device *touch_device;
};
static inline struct tablet_dispatch*
tablet_dispatch(struct evdev_dispatch *dispatch)
{
evdev_verify_dispatch_type(dispatch, DISPATCH_TABLET);
return container_of(dispatch, struct tablet_dispatch, base);
}
static inline enum libinput_tablet_tool_axis
evcode_to_axis(const uint32_t evcode)
{
enum libinput_tablet_tool_axis axis;
switch (evcode) {
case ABS_X:
axis = LIBINPUT_TABLET_TOOL_AXIS_X;
break;
case ABS_Y:
axis = LIBINPUT_TABLET_TOOL_AXIS_Y;
break;
case ABS_Z:
axis = LIBINPUT_TABLET_TOOL_AXIS_ROTATION_Z;
break;
case ABS_DISTANCE:
axis = LIBINPUT_TABLET_TOOL_AXIS_DISTANCE;
break;
case ABS_PRESSURE:
axis = LIBINPUT_TABLET_TOOL_AXIS_PRESSURE;
break;
case ABS_TILT_X:
axis = LIBINPUT_TABLET_TOOL_AXIS_TILT_X;
break;
case ABS_TILT_Y:
axis = LIBINPUT_TABLET_TOOL_AXIS_TILT_Y;
break;
case ABS_WHEEL:
axis = LIBINPUT_TABLET_TOOL_AXIS_SLIDER;
break;
default:
axis = LIBINPUT_TABLET_TOOL_AXIS_NONE;
break;
}
return axis;
}
static inline enum libinput_tablet_tool_axis
rel_evcode_to_axis(const uint32_t evcode)
{
enum libinput_tablet_tool_axis axis;
switch (evcode) {
case REL_WHEEL:
axis = LIBINPUT_TABLET_TOOL_AXIS_REL_WHEEL;
break;
default:
axis = LIBINPUT_TABLET_TOOL_AXIS_NONE;
break;
}
return axis;
}
static inline uint32_t
axis_to_evcode(const enum libinput_tablet_tool_axis axis)
{
uint32_t evcode;
switch (axis) {
case LIBINPUT_TABLET_TOOL_AXIS_X:
evcode = ABS_X;
break;
case LIBINPUT_TABLET_TOOL_AXIS_Y:
evcode = ABS_Y;
break;
case LIBINPUT_TABLET_TOOL_AXIS_DISTANCE:
evcode = ABS_DISTANCE;
break;
case LIBINPUT_TABLET_TOOL_AXIS_PRESSURE:
evcode = ABS_PRESSURE;
break;
case LIBINPUT_TABLET_TOOL_AXIS_TILT_X:
evcode = ABS_TILT_X;
break;
case LIBINPUT_TABLET_TOOL_AXIS_TILT_Y:
evcode = ABS_TILT_Y;
break;
case LIBINPUT_TABLET_TOOL_AXIS_ROTATION_Z:
evcode = ABS_Z;
break;
case LIBINPUT_TABLET_TOOL_AXIS_SLIDER:
evcode = ABS_WHEEL;
break;
default:
abort();
}
return evcode;
}
static inline int
tablet_tool_to_evcode(enum libinput_tablet_tool_type type)
{
int code;
switch (type) {
case LIBINPUT_TABLET_TOOL_TYPE_PEN: code = BTN_TOOL_PEN; break;
case LIBINPUT_TABLET_TOOL_TYPE_ERASER: code = BTN_TOOL_RUBBER; break;
case LIBINPUT_TABLET_TOOL_TYPE_BRUSH: code = BTN_TOOL_BRUSH; break;
case LIBINPUT_TABLET_TOOL_TYPE_PENCIL: code = BTN_TOOL_PENCIL; break;
case LIBINPUT_TABLET_TOOL_TYPE_AIRBRUSH: code = BTN_TOOL_AIRBRUSH; break;
case LIBINPUT_TABLET_TOOL_TYPE_MOUSE: code = BTN_TOOL_MOUSE; break;
case LIBINPUT_TABLET_TOOL_TYPE_LENS: code = BTN_TOOL_LENS; break;
default:
abort();
}
return code;
}
static inline const char *
tablet_tool_type_to_string(enum libinput_tablet_tool_type type)
{
const char *str;
switch (type) {
case LIBINPUT_TABLET_TOOL_TYPE_PEN: str = "pen"; break;
case LIBINPUT_TABLET_TOOL_TYPE_ERASER: str = "eraser"; break;
case LIBINPUT_TABLET_TOOL_TYPE_BRUSH: str = "brush"; break;
case LIBINPUT_TABLET_TOOL_TYPE_PENCIL: str = "pencil"; break;
case LIBINPUT_TABLET_TOOL_TYPE_AIRBRUSH: str = "airbrush"; break;
case LIBINPUT_TABLET_TOOL_TYPE_MOUSE: str = "mouse"; break;
case LIBINPUT_TABLET_TOOL_TYPE_LENS: str = "lens"; break;
default:
abort();
}
return str;
}
static inline struct libinput *
tablet_libinput_context(const struct tablet_dispatch *tablet)
{
return evdev_libinput_context(tablet->device);
}
#endif
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