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