| #ifndef QEMU_HID_H |
| #define QEMU_HID_H |
| |
| #include "migration/vmstate.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; |
| QEMUPutMouseEntry *eh_entry; |
| } HIDMouseState; |
| |
| typedef struct HIDKeyboardState { |
| uint32_t keycodes[QUEUE_LENGTH]; |
| uint16_t modifiers; |
| uint8_t leds; |
| uint8_t key[16]; |
| int32_t keys; |
| QEMUPutKbdEntry *eh_entry; |
| } 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; |
| }; |
| |
| 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 */ |