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/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <util/delay.h>
#include "usb_keycodes.h"
#include "host.h"
#include "timer.h"
#include "print.h"
#include "debug.h"
#include "mousekey.h"
static report_mouse_t report;
static uint8_t mousekey_repeat = 0;
static void mousekey_debug(void);
/*
* TODO: fix acceleration algorithm
* see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
*/
#ifndef MOUSEKEY_DELAY_TIME
# define MOUSEKEY_DELAY_TIME 20
#endif
#define MOUSEKEY_MOVE_INIT 5
#define MOUSEKEY_WHEEL_INIT 1
#define MOUSEKEY_MOVE_ACCEL 5
#define MOUSEKEY_WHEEL_ACCEL 1
static uint16_t last_timer = 0;
// acceleration parameters
//uint8_t mousekey_move_unit = 2;
//uint8_t mousekey_resolution = 5;
static inline uint8_t move_unit(void)
{
uint16_t unit = 5 + mousekey_repeat*4;
return (unit > 63 ? 63 : unit);
}
void mousekey_task(void)
{
if (timer_elapsed(last_timer) < MOUSEKEY_DELAY_TIME)
return;
if (report.x == 0 && report.y == 0 && report.v == 0 && report.h == 0)
return;
if (mousekey_repeat != UINT8_MAX)
mousekey_repeat++;
if (report.x > 0) report.x = move_unit();
if (report.x < 0) report.x = move_unit() * -1;
if (report.y > 0) report.y = move_unit();
if (report.y < 0) report.y = move_unit() * -1;
if (report.x && report.y) {
report.x *= 0.7;
report.y *= 0.7;
}
if (report.v > 0) report.v = move_unit();
if (report.v < 0) report.v = move_unit() * -1;
if (report.h > 0) report.h = move_unit();
if (report.h < 0) report.h = move_unit() * -1;
mousekey_send();
}
void mousekey_on(uint8_t code)
{
if (code == KB_MS_UP) report.y = MOUSEKEY_MOVE_INIT * -1;
else if (code == KB_MS_DOWN) report.y = MOUSEKEY_MOVE_INIT;
else if (code == KB_MS_LEFT) report.x = MOUSEKEY_MOVE_INIT * -1;
else if (code == KB_MS_RIGHT) report.x = MOUSEKEY_MOVE_INIT;
else if (code == KB_MS_WH_UP) report.v = MOUSEKEY_WHEEL_INIT;
else if (code == KB_MS_WH_DOWN) report.v = MOUSEKEY_WHEEL_INIT * -1;
else if (code == KB_MS_WH_LEFT) report.h = MOUSEKEY_WHEEL_INIT * -1;
else if (code == KB_MS_WH_RIGHT) report.h = MOUSEKEY_WHEEL_INIT;
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;
}
void mousekey_off(uint8_t code)
{
if (code == KB_MS_UP && report.y < 0) report.y = 0;
else if (code == KB_MS_DOWN && report.y > 0) report.y = 0;
else if (code == KB_MS_LEFT && report.x < 0) report.x = 0;
else if (code == KB_MS_RIGHT && report.x > 0) report.x = 0;
else if (code == KB_MS_WH_UP && report.v > 0) report.v = 0;
else if (code == KB_MS_WH_DOWN && report.v < 0) report.v = 0;
else if (code == KB_MS_WH_LEFT && report.h < 0) report.h = 0;
else if (code == KB_MS_WH_RIGHT && report.h > 0) report.h = 0;
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;
if (report.x == 0 && report.y == 0 && report.v == 0 && report.h == 0)
mousekey_repeat = 0;
}
void mousekey_send(void)
{
mousekey_debug();
host_mouse_send(&report);
last_timer = timer_read();
}
void mousekey_clear(void)
{
report = (report_mouse_t){};
}
static void mousekey_debug(void)
{
if (!debug_mouse) return;
print("mousekey [btn|x y v h]rep: [");
phex(report.buttons); print("|");
phex(report.x); print(" ");
phex(report.y); print(" ");
phex(report.v); print(" ");
phex(report.h); print("]");
phex(mousekey_repeat);
print("\n");
}
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