ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / input / hid.h
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 */