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#include <stdint.h>
#include <util/delay.h>
#include "usb_keycodes.h"
#include "usb_mouse.h"
#include "mousekey.h"
static int8_t mousekey_x = 0;
static int8_t mousekey_y = 0;
static int8_t mousekey_v = 0;
static int8_t mousekey_h = 0;
static uint8_t mousekey_btn = 0;
static uint8_t mousekey_btn_prev = 0;
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)
{
return 10 + (mousekey_repeat < 50 ? mousekey_repeat/5 : 10);
}
void mousekey_decode(uint8_t code)
{
if (code == KB_MS_UP) mousekey_y -= move_unit();
else if (code == KB_MS_DOWN) mousekey_y += move_unit();
else if (code == KB_MS_LEFT) mousekey_x -= move_unit();
else if (code == KB_MS_RIGHT) mousekey_x += move_unit();
else if (code == KB_MS_BTN1) mousekey_btn |= MOUSE_BTN1;
else if (code == KB_MS_BTN2) mousekey_btn |= MOUSE_BTN2;
else if (code == KB_MS_BTN3) mousekey_btn |= MOUSE_BTN3;
else if (code == KB_MS_BTN4) mousekey_btn |= MOUSE_BTN4;
else if (code == KB_MS_BTN5) mousekey_btn |= MOUSE_BTN5;
else if (code == KB_MS_WH_UP) mousekey_v += 1;
else if (code == KB_MS_WH_DOWN) mousekey_v -= 1;
else if (code == KB_MS_WH_LEFT) mousekey_h -= 1;
else if (code == KB_MS_WH_RIGHT) mousekey_h += 1;
}
bool mousekey_changed(void)
{
return (mousekey_x || mousekey_y || mousekey_v || mousekey_h || mousekey_btn != mousekey_btn_prev);
}
void mousekey_usb_send(void)
{
if (mousekey_changed()) {
mousekey_btn_prev = mousekey_btn;
if (mousekey_x && mousekey_y)
usb_mouse_send(mousekey_x*0.7, mousekey_y*0.7, mousekey_v, mousekey_h, mousekey_btn);
else
usb_mouse_send(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
usb_mouse_print(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
if (mousekey_x || mousekey_y || mousekey_v || mousekey_h)
_delay_ms(MOUSEKEY_DELAY_TIME >> (mousekey_repeat < 5 ? mousekey_repeat : 4));
mousekey_repeat++;
} else {
mousekey_repeat = 0;
}
mousekey_x = 0;
mousekey_y = 0;
mousekey_v = 0;
mousekey_h = 0;
mousekey_btn = 0;
}
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