1 #include <avr/interrupt.h>
2 #include <util/delay.h>
8 static bool is_sent = false;
10 // which buttons are currently pressed
11 uint8_t mouse_buttons=0;
13 // protocol setting from the host. We use exactly the same report
14 // either way, so this variable only stores the setting since we
15 // are required to be able to report which setting is in use.
16 uint8_t mouse_protocol=1;
19 // Set the mouse buttons. To create a "click", 2 calls are needed,
20 // one to push the button down and the second to release it
21 int8_t usb_mouse_buttons(uint8_t left, uint8_t middle, uint8_t right)
26 if (middle) mask |= 4;
29 return usb_mouse_move(0, 0, 0, 0);
32 // Move the mouse. x, y and wheel are -127 to 127. Use 0 for no movement.
33 int8_t usb_mouse_move(int8_t x, int8_t y, int8_t wheel, int8_t hwheel)
35 uint8_t intr_state, timeout;
37 if (!usb_configured()) return -1;
38 if (x == -128) x = -127;
39 if (y == -128) y = -127;
40 if (wheel == -128) wheel = -127;
41 if (hwheel == -128) hwheel = -127;
44 UENUM = MOUSE_ENDPOINT;
45 timeout = UDFNUML + 50;
47 // are we ready to transmit?
48 if (UEINTX & (1<<RWAL)) break;
50 // has the USB gone offline?
51 if (!usb_configured()) return -1;
52 // have we waited too long?
53 if (UDFNUML == timeout) return -1;
54 // get ready to try checking again
57 UENUM = MOUSE_ENDPOINT;
59 UEDATX = mouse_buttons;
71 void usb_mouse_clear(void) {
75 bool usb_mouse_is_sent(void) {
79 void usb_mouse_print(int8_t mouse_x, int8_t mouse_y, int8_t wheel_v, int8_t wheel_h) {
80 if (!debug_mouse) return;
81 print("mouse btn|x y v h: ");
82 phex(mouse_buttons); print("|");
83 phex(mouse_x); print(" ");
84 phex(mouse_y); print(" ");
85 phex(wheel_v); print(" ");
86 phex(wheel_h); print("\n");