133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
/*
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Copyright 2011 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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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 "host.h"
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#include "timer.h"
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#include "print.h"
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#include "debug.h"
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#include "mousekey.h"
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static report_mouse_t report;
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static report_mouse_t report_prev;
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static uint8_t mousekey_repeat = 0;
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static void mousekey_debug(void);
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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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// acceleration parameters
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uint8_t mousekey_move_unit = 2;
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uint8_t mousekey_resolution = 5;
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static inline uint8_t move_unit(void)
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{
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uint16_t unit = 5 + mousekey_repeat*2;
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return (unit > 63 ? 63 : unit);
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}
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void mousekey_decode(uint8_t code)
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{
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if (code == KB_MS_UP) report.y = -move_unit();
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else if (code == KB_MS_DOWN) report.y = move_unit();
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else if (code == KB_MS_LEFT) report.x = -move_unit();
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else if (code == KB_MS_RIGHT) report.x = move_unit();
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else if (code == KB_MS_BTN1) report.buttons |= MOUSE_BTN1;
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else if (code == KB_MS_BTN2) report.buttons |= MOUSE_BTN2;
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else if (code == KB_MS_BTN3) report.buttons |= MOUSE_BTN3;
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else if (code == KB_MS_BTN4) report.buttons |= MOUSE_BTN4;
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else if (code == KB_MS_BTN5) report.buttons |= MOUSE_BTN5;
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else if (code == KB_MS_WH_UP) report.v += move_unit()/4;
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else if (code == KB_MS_WH_DOWN) report.v -= move_unit()/4;
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else if (code == KB_MS_WH_LEFT) report.h -= move_unit()/4;
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else if (code == KB_MS_WH_RIGHT)report.h += move_unit()/4;
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}
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bool mousekey_changed(void)
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{
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return (report.buttons != report_prev.buttons ||
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report.x || report.y || report.v || report.h);
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}
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void mousekey_send(void)
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{
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static uint16_t last_timer = 0;
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if (!mousekey_changed()) {
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mousekey_repeat = 0;
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mousekey_clear_report();
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return;
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}
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// send immediately when buttun state is changed
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if (report.buttons == report_prev.buttons) {
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if (timer_elapsed(last_timer) < 100) {
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mousekey_clear_report();
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return;
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}
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}
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if (mousekey_repeat != 0xFF) {
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mousekey_repeat++;
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}
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if (report.x && report.y) {
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report.x *= 0.7;
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report.y *= 0.7;
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}
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mousekey_debug();
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host_mouse_send(&report);
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report_prev = report;
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last_timer = timer_read();
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mousekey_clear_report();
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}
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void mousekey_clear_report(void)
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{
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report.buttons = 0;
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report.x = 0;
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report.y = 0;
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report.v = 0;
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report.h = 0;
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}
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static void mousekey_debug(void)
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{
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if (!debug_mouse) return;
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print("mousekey [btn|x y v h]rep: [");
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phex(report.buttons); print("|");
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phex(report.x); print(" ");
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phex(report.y); print(" ");
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phex(report.v); print(" ");
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phex(report.h); print("]");
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phex(mousekey_repeat);
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print("\n");
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}
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