diff options
Diffstat (limited to 'mousekey.c')
| -rw-r--r-- | mousekey.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/mousekey.c b/mousekey.c new file mode 100644 index 0000000000..be454e13ea --- /dev/null +++ b/mousekey.c @@ -0,0 +1,74 @@ +#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 == MS_UP) mousekey_y -= move_unit(); + else if (code == MS_DOWN) mousekey_y += move_unit(); + else if (code == MS_LEFT) mousekey_x -= move_unit(); + else if (code == MS_RGHT) mousekey_x += move_unit(); + else if (code == MS_BTN1) mousekey_btn |= MOUSE_BTN1; + else if (code == MS_BTN2) mousekey_btn |= MOUSE_BTN2; + else if (code == MS_BTN3) mousekey_btn |= MOUSE_BTN3; + else if (code == MS_BTN4) mousekey_btn |= MOUSE_BTN4; + else if (code == MS_BTN5) mousekey_btn |= MOUSE_BTN5; + else if (code == MS_WH_U) mousekey_v += 1; + else if (code == MS_WH_D) mousekey_v -= 1; + else if (code == MS_WH_L) mousekey_h -= 1; + else if (code == MS_WH_R) 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); + + _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; +} |