Hi,
Updated according to the feedback. Multitouch not added (yet).
cheers,
Gerd
#ifndef __QEMU_PVTABLET__
#define __QEMU_PVTABLET__ 1
/*
* qemu patavirtual tablet interface
*/
#include <inttypes.h>
/*
* our virtio-serial channel name(s)
*/
#define QEMU_PVTABLET_FORMAT "org.qemu.pvtablet.%d"
enum qemu_pvtablet_type {
QEMU_PVTABLET_MSG_INIT,
QEMU_PVTABLET_MSG_ACK,
QEMU_PVTABLET_MSG_MOVE,
QEMU_PVTABLET_MSG_BTN_DOWN,
QEMU_PVTABLET_MSG_BTN_UP,
};
typedef enum qemu_pvtablet_features {
/* None yet */
};
typedef enum qemu_pvtablet_buttons {
QEMU_PVTABLET_BTN_LEFT,
QEMU_PVTABLET_BTN_RIGHT,
QEMU_PVTABLET_BTN_MIDDLE,
QEMU_PVTABLET_BTN_SCROLL_UP,
QEMU_PVTABLET_BTN_SCROLL_DOWN,
/*
* we can handle up to 32 buttons although
* not every has a individual name ;)
*/
};
/*
* QEMU_PVTABLET_MSG_INIT, host -> guest
* first message, sent before any other event
*/
typedef struct qemu_pvtablet_init {
uint32_t res_x; /* x axis resolution */
uint32_t res_y; /* y axis resolution */
uint32_t features; /* qemu_pvtablet_features */
uint32_t buttons_mask; /* mouse buttons available */
} qemu_pvtablet_init;
/*
* QEMU_PVTABLET_MSG_ACK, guest -> host
* sent after pvtablet_init. host will not send
* additional messages until this is received
*/
typedef struct qemu_pvtablet_ack {
uint32_t features; /* qemu_pvtable_features */
};
/*
* QEMU_PVTABLET_MSG_BTN_{DOWN,UP}, host -> guest
* send button press+release events
*/
typedef struct qemu_pvtablet_button {
uint32_t button;
uint32_t mask;
} qemu_pvtablet_button;
/*
* QEMU_PVTABLET_MSG_MOVE, host -> guest
* send pointer move events
*/
typedef struct qemu_pvtablet_position {
uint32_t pos_x;
uint32_t pos_y;
} qemu_pvtablet_position;
typedef struct qemu_pvtablet_header {
uint32_t size; /* whole message size */
uint32_t type; /* qemu_pvtablet_type */
/*
* Timestamp is specified in nanoseconds. Timebase is undefined.
* This is supposed to be used to figure how much time passed
* between two events, to decide whenever two mouse clicks should
* be interpreted as double click or not and simliar stuff.
*/
uint64_t timestamp;
} qemu_pvtablet_header;
typedef union qemu_pvtablet_payload {
qemu_pvtablet_init init;
qemu_pvtablet_ack ack;
qemu_pvtablet_position position;
qemu_pvtablet_button button;
};
typedef struct qemu_pvtablet_message {
qemu_pvtablet_header hdr;
qemu_pvtablet_payload data;
} qemu_pvtablet_message;
#endif /* __QEMU_PVTABLET__ */
