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// SPDX-License-Identifier: LicenseRef-AGPL-3.0-only-OpenSSL
#ifndef _SETSU_H
#define _SETSU_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct setsu_t Setsu;
typedef struct setsu_device_t SetsuDevice;
typedef int SetsuTrackingId;
typedef enum {
SETSU_DEVICE_TYPE_TOUCHPAD,
SETSU_DEVICE_TYPE_MOTION
} SetsuDeviceType;
typedef enum {
/* New device available to connect.
* Event will have path and type set to the new device. */
SETSU_EVENT_DEVICE_ADDED,
/* Previously available device removed.
* Event will have path and type set to the removed device.
* Any SetsuDevice connected to this path will automatically
* be disconnected and their pointers will be invalid immediately
* after the callback for this event returns. */
SETSU_EVENT_DEVICE_REMOVED,
/* Touch down.
* Event will have dev and tracking_id set. */
SETSU_EVENT_TOUCH_DOWN,
/* Touch down.
* Event will have dev and tracking_id set. */
SETSU_EVENT_TOUCH_UP,
/* Touch position update.
* Event will have dev, tracking_id, x and y set. */
SETSU_EVENT_TOUCH_POSITION,
/* Event will have dev and button set. */
SETSU_EVENT_BUTTON_DOWN,
/* Event will have dev and button set. */
SETSU_EVENT_BUTTON_UP,
/* Event will have motion set. */
SETSU_EVENT_MOTION
} SetsuEventType;
#define SETSU_BUTTON_0 (1u << 0)
typedef uint64_t SetsuButton;
typedef struct setsu_event_t
{
SetsuEventType type;
union
{
struct
{
const char *path;
SetsuDeviceType dev_type;
};
struct
{
SetsuDevice *dev;
union
{
struct
{
SetsuTrackingId tracking_id;
uint32_t x, y;
} touch;
SetsuButton button;
struct
{
float accel_x, accel_y, accel_z; // unit is 1G
float gyro_x, gyro_y, gyro_z; // unit is rad/sec
uint32_t timestamp; // microseconds
} motion;
};
};
};
} SetsuEvent;
typedef void (*SetsuEventCb)(SetsuEvent *event, void *user);
Setsu *setsu_new();
void setsu_free(Setsu *setsu);
void setsu_poll(Setsu *setsu, SetsuEventCb cb, void *user);
SetsuDevice *setsu_connect(Setsu *setsu, const char *path, SetsuDeviceType type);
void setsu_disconnect(Setsu *setsu, SetsuDevice *dev);
const char *setsu_device_get_path(SetsuDevice *dev);
uint32_t setsu_device_touchpad_get_width(SetsuDevice *dev);
uint32_t setsu_device_touchpad_get_height(SetsuDevice *dev);
#ifdef __cplusplus
}
#endif
#endif
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