hid.h (2559B)
1 #ifndef QEMU_HID_H 2 #define QEMU_HID_H 3 4 #include "ui/input.h" 5 6 #define HID_MOUSE 1 7 #define HID_TABLET 2 8 #define HID_KEYBOARD 3 9 10 typedef struct HIDPointerEvent { 11 int32_t xdx, ydy; /* relative iff it's a mouse, otherwise absolute */ 12 int32_t dz, buttons_state; 13 } HIDPointerEvent; 14 15 #define QUEUE_LENGTH 16 /* should be enough for a triple-click */ 16 #define QUEUE_MASK (QUEUE_LENGTH-1u) 17 #define QUEUE_INCR(v) ((v)++, (v) &= QUEUE_MASK) 18 19 typedef struct HIDState HIDState; 20 typedef void (*HIDEventFunc)(HIDState *s); 21 22 typedef struct HIDMouseState { 23 HIDPointerEvent queue[QUEUE_LENGTH]; 24 int mouse_grabbed; 25 } HIDMouseState; 26 27 typedef struct HIDKeyboardState { 28 uint32_t keycodes[QUEUE_LENGTH]; 29 uint16_t modifiers; 30 uint8_t leds; 31 uint8_t key[16]; 32 int32_t keys; 33 } HIDKeyboardState; 34 35 struct HIDState { 36 union { 37 HIDMouseState ptr; 38 HIDKeyboardState kbd; 39 }; 40 uint32_t head; /* index into circular queue */ 41 uint32_t n; 42 int kind; 43 int32_t protocol; 44 uint8_t idle; 45 bool idle_pending; 46 QEMUTimer *idle_timer; 47 HIDEventFunc event; 48 QemuInputHandlerState *s; 49 }; 50 51 void hid_init(HIDState *hs, int kind, HIDEventFunc event); 52 void hid_reset(HIDState *hs); 53 void hid_free(HIDState *hs); 54 55 bool hid_has_events(HIDState *hs); 56 void hid_set_next_idle(HIDState *hs); 57 void hid_pointer_activate(HIDState *hs); 58 int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len); 59 int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len); 60 int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len); 61 62 extern const VMStateDescription vmstate_hid_keyboard_device; 63 64 #define VMSTATE_HID_KEYBOARD_DEVICE(_field, _state) { \ 65 .name = (stringify(_field)), \ 66 .size = sizeof(HIDState), \ 67 .vmsd = &vmstate_hid_keyboard_device, \ 68 .flags = VMS_STRUCT, \ 69 .offset = vmstate_offset_value(_state, _field, HIDState), \ 70 } 71 72 extern const VMStateDescription vmstate_hid_ptr_device; 73 74 #define VMSTATE_HID_POINTER_DEVICE(_field, _state) { \ 75 .name = (stringify(_field)), \ 76 .size = sizeof(HIDState), \ 77 .vmsd = &vmstate_hid_ptr_device, \ 78 .flags = VMS_STRUCT, \ 79 .offset = vmstate_offset_value(_state, _field, HIDState), \ 80 } 81 82 83 #endif /* QEMU_HID_H */