qemu/include/hw/input/hid.h
Markus Armbruster d645427057 Include migration/vmstate.h less
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get VMStateDescription.  The previous commit made
that unnecessary.

Include migration/vmstate.h only where it's still needed.  Touching it
now recompiles only some 1600 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00

84 lines
2.5 KiB
C

#ifndef QEMU_HID_H
#define QEMU_HID_H
#include "ui/input.h"
#define HID_MOUSE 1
#define HID_TABLET 2
#define HID_KEYBOARD 3
typedef struct HIDPointerEvent {
int32_t xdx, ydy; /* relative iff it's a mouse, otherwise absolute */
int32_t dz, buttons_state;
} HIDPointerEvent;
#define QUEUE_LENGTH 16 /* should be enough for a triple-click */
#define QUEUE_MASK (QUEUE_LENGTH-1u)
#define QUEUE_INCR(v) ((v)++, (v) &= QUEUE_MASK)
typedef struct HIDState HIDState;
typedef void (*HIDEventFunc)(HIDState *s);
typedef struct HIDMouseState {
HIDPointerEvent queue[QUEUE_LENGTH];
int mouse_grabbed;
} HIDMouseState;
typedef struct HIDKeyboardState {
uint32_t keycodes[QUEUE_LENGTH];
uint16_t modifiers;
uint8_t leds;
uint8_t key[16];
int32_t keys;
} HIDKeyboardState;
struct HIDState {
union {
HIDMouseState ptr;
HIDKeyboardState kbd;
};
uint32_t head; /* index into circular queue */
uint32_t n;
int kind;
int32_t protocol;
uint8_t idle;
bool idle_pending;
QEMUTimer *idle_timer;
HIDEventFunc event;
QemuInputHandlerState *s;
};
void hid_init(HIDState *hs, int kind, HIDEventFunc event);
void hid_reset(HIDState *hs);
void hid_free(HIDState *hs);
bool hid_has_events(HIDState *hs);
void hid_set_next_idle(HIDState *hs);
void hid_pointer_activate(HIDState *hs);
int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len);
int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len);
int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len);
extern const VMStateDescription vmstate_hid_keyboard_device;
#define VMSTATE_HID_KEYBOARD_DEVICE(_field, _state) { \
.name = (stringify(_field)), \
.size = sizeof(HIDState), \
.vmsd = &vmstate_hid_keyboard_device, \
.flags = VMS_STRUCT, \
.offset = vmstate_offset_value(_state, _field, HIDState), \
}
extern const VMStateDescription vmstate_hid_ptr_device;
#define VMSTATE_HID_POINTER_DEVICE(_field, _state) { \
.name = (stringify(_field)), \
.size = sizeof(HIDState), \
.vmsd = &vmstate_hid_ptr_device, \
.flags = VMS_STRUCT, \
.offset = vmstate_offset_value(_state, _field, HIDState), \
}
#endif /* QEMU_HID_H */