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#include <stdint.h>
#include <util/delay.h>
#include "usb_keycodes.h"
#include "host.h"
#include "timer.h"
#include "print.h"
#include "mousekey.h"
static report_mouse_t report;
static report_mouse_t report_prev;
static uint8_t mousekey_repeat = 0;
/*
* TODO: fix acceleration algorithm
* see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
*/
#ifndef MOUSEKEY_DELAY_TIME
# define MOUSEKEY_DELAY_TIME 255
#endif
static inline uint8_t move_unit(void)
{
uint8_t unit = (10 + (mousekey_repeat));
return unit > 127 ? 127 : unit;
}
void mousekey_decode(uint8_t code)
{
if (code == KB_MS_UP) report.y -= move_unit();
else if (code == KB_MS_DOWN) report.y += move_unit();
else if (code == KB_MS_LEFT) report.x -= move_unit();
else if (code == KB_MS_RIGHT) report.x += move_unit();
else if (code == KB_MS_BTN1) report.buttons |= MOUSE_BTN1;
else if (code == KB_MS_BTN2) report.buttons |= MOUSE_BTN2;
else if (code == KB_MS_BTN3) report.buttons |= MOUSE_BTN3;
/*
else if (code == KB_MS_BTN4) report.buttons |= MOUSE_BTN4;
else if (code == KB_MS_BTN5) report.buttons |= MOUSE_BTN5;
else if (code == KB_MS_WH_UP) report.v += 1;
else if (code == KB_MS_WH_DOWN) report.v -= 1;
else if (code == KB_MS_WH_LEFT) report.h -= 1;
else if (code == KB_MS_WH_RIGHT)report.h += 1;
*/
}
bool mousekey_changed(void)
{
return (report.buttons != report_prev.buttons ||
report.x != report_prev.x ||
report.y != report_prev.y ||
report.x || report.y);
//return (report.buttons != report_prev.buttons || report.x || report.y);
}
void mousekey_send(void)
{
static uint16_t last_timer = 0;
if (!mousekey_changed()) {
mousekey_repeat = 0;
return;
}
// send immediately when buttun state is changed
if (report.buttons == report_prev.buttons) {
// TODO: delay parameter setting
if ((timer_elapsed(last_timer) < (mousekey_repeat == 1 ? 20 : 5))) {
return;
}
}
if (report.x && report.y) {
report.x *= 0.7;
report.y *= 0.7;
}
/*
print("mousekey_repeat: "); phex(mousekey_repeat); print("\n");
print("timer: "); phex16(timer_read()); print("\n");
print("last_timer: "); phex16(last_timer); print("\n");
print("mousekey: "); phex(report.buttons); print(" "); phex(report.x); print(" "); phex(report.y); print("\n");
*/
host_mouse_send(&report);
report_prev.buttons = report.buttons;
report_prev.x = report.x;
report_prev.y = report.y;
if (mousekey_repeat != 0xFF) mousekey_repeat++;
last_timer = timer_read();
mousekey_clear_report();
}
void mousekey_clear_report(void)
{
report.buttons = 0;
report.x = 0;
report.y = 0;
}
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