From dcfda673101313472524bfac8c2fe2e1d03c8214 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 15 Jul 2011 15:08:01 +0200 Subject: usb-hid: split hid code to hw/hid.[ch] Almost pure code motion. Unstatic hid interface functions and add them to the header file. Some renames. Some code style cleanups. Signed-off-by: Gerd Hoffmann --- hw/hid.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 hw/hid.h (limited to 'hw/hid.h') diff --git a/hw/hid.h b/hw/hid.h new file mode 100644 index 0000000000..99910c3a86 --- /dev/null +++ b/hw/hid.h @@ -0,0 +1,54 @@ +#ifndef QEMU_HID_H +#define QEMU_HID_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; +} HIDKeyboardState; + +struct HIDState { + union { + HIDMouseState ptr; + HIDKeyboardState kbd; + }; + uint32_t head; /* index into circular queue */ + uint32_t n; + int kind; + 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); +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); + +#endif /* QEMU_HID_H */ -- cgit v1.2.3