2 #include <util/delay.h>
3 #include "usb_keycodes.h"
11 static report_mouse_t report;
12 static report_mouse_t report_prev;
14 static uint8_t mousekey_repeat = 0;
16 static void mousekey_debug(void);
20 * TODO: fix acceleration algorithm
21 * see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
23 #ifndef MOUSEKEY_DELAY_TIME
24 # define MOUSEKEY_DELAY_TIME 255
27 // acceleration parameters
28 uint8_t mousekey_move_unit = 2;
29 uint8_t mousekey_resolution = 5;
32 static inline uint8_t move_unit(void)
34 uint16_t unit = 5 + mousekey_repeat*2;
35 return (unit > 63 ? 63 : unit);
38 void mousekey_decode(uint8_t code)
40 if (code == KB_MS_UP) report.y = -move_unit();
41 else if (code == KB_MS_DOWN) report.y = move_unit();
42 else if (code == KB_MS_LEFT) report.x = -move_unit();
43 else if (code == KB_MS_RIGHT) report.x = move_unit();
44 else if (code == KB_MS_BTN1) report.buttons |= MOUSE_BTN1;
45 else if (code == KB_MS_BTN2) report.buttons |= MOUSE_BTN2;
46 else if (code == KB_MS_BTN3) report.buttons |= MOUSE_BTN3;
47 else if (code == KB_MS_BTN4) report.buttons |= MOUSE_BTN4;
48 else if (code == KB_MS_BTN5) report.buttons |= MOUSE_BTN5;
49 else if (code == KB_MS_WH_UP) report.v += 1;
50 else if (code == KB_MS_WH_DOWN) report.v -= 1;
51 else if (code == KB_MS_WH_LEFT) report.h -= 1;
52 else if (code == KB_MS_WH_RIGHT)report.h += 1;
55 bool mousekey_changed(void)
57 return (report.buttons != report_prev.buttons ||
58 report.x || report.y || report.v || report.h);
61 void mousekey_send(void)
63 static uint16_t last_timer = 0;
65 if (!mousekey_changed()) {
67 mousekey_clear_report();
71 // send immediately when buttun state is changed
72 if (report.buttons == report_prev.buttons) {
73 if (timer_elapsed(last_timer) < 5) {
74 mousekey_clear_report();
79 if (mousekey_repeat != 0xFF) {
83 if (report.x && report.y) {
89 host_mouse_send(&report);
91 last_timer = timer_read();
92 mousekey_clear_report();
95 void mousekey_clear_report(void)
104 static void mousekey_debug(void)
106 if (!debug_mouse) return;
107 print("mousekey[btn|x y v h]: ");
108 phex(report.buttons); print("|");
109 phex(report.x); print(" ");
110 phex(report.y); print(" ");
111 phex(report.v); print(" ");
113 phex(mousekey_repeat);