mousekey.c.bak

   1 #include <stdint.h>
   2 #include <util/delay.h>
   3 #include "usb_keycodes.h"
   4 #include "usb_mouse.h"
   5 #include "mousekey.h"
   6
   7
   8 static int8_t mousekey_x = 0;
   9 static int8_t mousekey_y = 0;
  10 static int8_t mousekey_v = 0;
  11 static int8_t mousekey_h = 0;
  12 static uint8_t mousekey_btn = 0;
  13 static uint8_t mousekey_btn_prev = 0;
  14 static uint8_t mousekey_repeat =  0;
  15
  16
  17 /*
  18  * TODO: fix acceleration algorithm
  19  * see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
  20  */
  21 #ifndef MOUSEKEY_DELAY_TIME
  22 #   define MOUSEKEY_DELAY_TIME 255
  23 #endif
  24
  25
  26 static inline uint8_t move_unit(void)
  27 {
  28     return 10 + (mousekey_repeat < 50 ? mousekey_repeat/5 : 10);
  29 }
  30
  31 void mousekey_decode(uint8_t code)
  32 {
  33     if      (code == KB_MS_UP)   mousekey_y -= move_unit();
  34     else if (code == KB_MS_DOWN) mousekey_y += move_unit();
  35     else if (code == KB_MS_LEFT) mousekey_x -= move_unit();
  36     else if (code == KB_MS_RIGHT) mousekey_x += move_unit();
  37     else if (code == KB_MS_BTN1) mousekey_btn |= MOUSE_BTN1;
  38     else if (code == KB_MS_BTN2) mousekey_btn |= MOUSE_BTN2;
  39     else if (code == KB_MS_BTN3) mousekey_btn |= MOUSE_BTN3;
  40     else if (code == KB_MS_BTN4) mousekey_btn |= MOUSE_BTN4;
  41     else if (code == KB_MS_BTN5) mousekey_btn |= MOUSE_BTN5;
  42     else if (code == KB_MS_WH_UP) mousekey_v += 1;
  43     else if (code == KB_MS_WH_DOWN) mousekey_v -= 1;
  44     else if (code == KB_MS_WH_LEFT) mousekey_h -= 1;
  45     else if (code == KB_MS_WH_RIGHT) mousekey_h += 1;
  46 }
  47
  48 bool mousekey_changed(void)
  49 {
  50     return (mousekey_x || mousekey_y || mousekey_v || mousekey_h || mousekey_btn != mousekey_btn_prev);
  51 }
  52
  53 void mousekey_usb_send(void)
  54 {
  55     if (mousekey_changed()) {
  56         mousekey_btn_prev = mousekey_btn;
  57         if (mousekey_x && mousekey_y)
  58             usb_mouse_send(mousekey_x*0.7, mousekey_y*0.7, mousekey_v, mousekey_h, mousekey_btn);
  59         else
  60             usb_mouse_send(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
  61
  62         usb_mouse_print(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
  63
  64         if (mousekey_x || mousekey_y || mousekey_v || mousekey_h)
  65             _delay_ms(MOUSEKEY_DELAY_TIME >> (mousekey_repeat < 5 ? mousekey_repeat : 4));
  66         mousekey_repeat++;
  67     } else {
  68         mousekey_repeat = 0;
  69     }
  70     mousekey_x = 0;
  71     mousekey_y = 0;
  72     mousekey_v = 0;
  73     mousekey_h = 0;
  74     mousekey_btn = 0;
  75 }