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75 lines
2.2 KiB
75 lines
2.2 KiB
14 years ago
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#include <stdint.h>
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#include <util/delay.h>
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#include "usb_keycodes.h"
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#include "usb_mouse.h"
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#include "mousekey.h"
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static int8_t mousekey_x = 0;
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static int8_t mousekey_y = 0;
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static int8_t mousekey_v = 0;
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static int8_t mousekey_h = 0;
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static uint8_t mousekey_btn = 0;
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static uint8_t mousekey_btn_prev = 0;
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static uint8_t mousekey_repeat = 0;
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/*
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* TODO: fix acceleration algorithm
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* see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
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*/
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#ifndef MOUSEKEY_DELAY_TIME
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# define MOUSEKEY_DELAY_TIME 255
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#endif
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static inline uint8_t move_unit(void)
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{
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return 10 + (mousekey_repeat < 50 ? mousekey_repeat/5 : 10);
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}
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void mousekey_decode(uint8_t code)
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{
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if (code == MS_UP) mousekey_y -= move_unit();
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else if (code == MS_DOWN) mousekey_y += move_unit();
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else if (code == MS_LEFT) mousekey_x -= move_unit();
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else if (code == MS_RGHT) mousekey_x += move_unit();
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else if (code == MS_BTN1) mousekey_btn |= MOUSE_BTN1;
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else if (code == MS_BTN2) mousekey_btn |= MOUSE_BTN2;
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else if (code == MS_BTN3) mousekey_btn |= MOUSE_BTN3;
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else if (code == MS_BTN4) mousekey_btn |= MOUSE_BTN4;
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else if (code == MS_BTN5) mousekey_btn |= MOUSE_BTN5;
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else if (code == MS_WH_U) mousekey_v += 1;
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else if (code == MS_WH_D) mousekey_v -= 1;
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else if (code == MS_WH_L) mousekey_h -= 1;
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else if (code == MS_WH_R) mousekey_h += 1;
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}
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bool mousekey_changed(void)
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{
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return (mousekey_x || mousekey_y || mousekey_v || mousekey_h || mousekey_btn != mousekey_btn_prev);
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}
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void mousekey_usb_send(void)
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{
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if (mousekey_changed()) {
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mousekey_btn_prev = mousekey_btn;
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if (mousekey_x && mousekey_y)
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usb_mouse_send(mousekey_x*0.7, mousekey_y*0.7, mousekey_v, mousekey_h, mousekey_btn);
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else
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usb_mouse_send(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
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usb_mouse_print(mousekey_x, mousekey_y, mousekey_v, mousekey_h, mousekey_btn);
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_delay_ms(MOUSEKEY_DELAY_TIME >> (mousekey_repeat < 5 ? mousekey_repeat : 4));
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mousekey_repeat++;
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} else {
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mousekey_repeat = 0;
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}
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mousekey_x = 0;
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mousekey_y = 0;
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mousekey_v = 0;
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mousekey_h = 0;
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mousekey_btn = 0;
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}
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