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-rw-r--r--common/mousekey.c196
1 files changed, 196 insertions, 0 deletions
diff --git a/common/mousekey.c b/common/mousekey.c
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+++ b/common/mousekey.c
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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 "keycode.h"
+#include "host.h"
+#include "timer.h"
+#include "print.h"
+#include "debug.h"
+#include "mousekey.h"
+
+
+
+static report_mouse_t mouse_report = {};
+static uint8_t mousekey_repeat = 0;
+static uint8_t mousekey_accel = 0;
+
+static void mousekey_debug(void);
+
+
+/*
+ * Mouse keys acceleration algorithm
+ * http://en.wikipedia.org/wiki/Mouse_keys
+ *
+ * speed = delta * max_speed * (repeat / time_to_max)**((1000+curve)/1000)
+ */
+/* milliseconds between the initial key press and first repeated motion event (0-2550) */
+uint8_t mk_delay = MOUSEKEY_DELAY/10;
+/* milliseconds between repeated motion events (0-255) */
+uint8_t mk_interval = MOUSEKEY_INTERVAL;
+/* steady speed (in action_delta units) applied each event (0-255) */
+uint8_t mk_max_speed = MOUSEKEY_MAX_SPEED;
+/* number of events (count) accelerating to steady speed (0-255) */
+uint8_t mk_time_to_max = MOUSEKEY_TIME_TO_MAX;
+/* ramp used to reach maximum pointer speed (NOT SUPPORTED) */
+//int8_t mk_curve = 0;
+/* wheel params */
+uint8_t mk_wheel_max_speed = MOUSEKEY_WHEEL_MAX_SPEED;
+uint8_t mk_wheel_time_to_max = MOUSEKEY_WHEEL_TIME_TO_MAX;
+
+
+static uint16_t last_timer = 0;
+
+
+static uint8_t move_unit(void)
+{
+ uint16_t unit;
+ if (mousekey_accel & (1<<0)) {
+ unit = (MOUSEKEY_MOVE_DELTA * mk_max_speed)/4;
+ } else if (mousekey_accel & (1<<1)) {
+ unit = (MOUSEKEY_MOVE_DELTA * mk_max_speed)/2;
+ } else if (mousekey_accel & (1<<2)) {
+ unit = (MOUSEKEY_MOVE_DELTA * mk_max_speed);
+ } else if (mousekey_repeat == 0) {
+ unit = MOUSEKEY_MOVE_DELTA;
+ } else if (mousekey_repeat >= mk_time_to_max) {
+ unit = MOUSEKEY_MOVE_DELTA * mk_max_speed;
+ } else {
+ unit = (MOUSEKEY_MOVE_DELTA * mk_max_speed * mousekey_repeat) / mk_time_to_max;
+ }
+ return (unit > MOUSEKEY_MOVE_MAX ? MOUSEKEY_MOVE_MAX : (unit == 0 ? 1 : unit));
+}
+
+static uint8_t wheel_unit(void)
+{
+ uint16_t unit;
+ if (mousekey_accel & (1<<0)) {
+ unit = (MOUSEKEY_WHEEL_DELTA * mk_wheel_max_speed)/4;
+ } else if (mousekey_accel & (1<<1)) {
+ unit = (MOUSEKEY_WHEEL_DELTA * mk_wheel_max_speed)/2;
+ } else if (mousekey_accel & (1<<2)) {
+ unit = (MOUSEKEY_WHEEL_DELTA * mk_wheel_max_speed);
+ } else if (mousekey_repeat == 0) {
+ unit = MOUSEKEY_WHEEL_DELTA;
+ } else if (mousekey_repeat >= mk_wheel_time_to_max) {
+ unit = MOUSEKEY_WHEEL_DELTA * mk_wheel_max_speed;
+ } else {
+ unit = (MOUSEKEY_WHEEL_DELTA * mk_wheel_max_speed * mousekey_repeat) / mk_wheel_time_to_max;
+ }
+ return (unit > MOUSEKEY_WHEEL_MAX ? MOUSEKEY_WHEEL_MAX : (unit == 0 ? 1 : unit));
+}
+
+void mousekey_task(void)
+{
+ if (timer_elapsed(last_timer) < (mousekey_repeat ? mk_interval : mk_delay*10))
+ return;
+
+ if (mouse_report.x == 0 && mouse_report.y == 0 && mouse_report.v == 0 && mouse_report.h == 0)
+ return;
+
+ if (mousekey_repeat != UINT8_MAX)
+ mousekey_repeat++;
+
+
+ if (mouse_report.x > 0) mouse_report.x = move_unit();
+ if (mouse_report.x < 0) mouse_report.x = move_unit() * -1;
+ if (mouse_report.y > 0) mouse_report.y = move_unit();
+ if (mouse_report.y < 0) mouse_report.y = move_unit() * -1;
+
+ /* diagonal move [1/sqrt(2) = 0.7] */
+ if (mouse_report.x && mouse_report.y) {
+ mouse_report.x *= 0.7;
+ mouse_report.y *= 0.7;
+ }
+
+ if (mouse_report.v > 0) mouse_report.v = wheel_unit();
+ if (mouse_report.v < 0) mouse_report.v = wheel_unit() * -1;
+ if (mouse_report.h > 0) mouse_report.h = wheel_unit();
+ if (mouse_report.h < 0) mouse_report.h = wheel_unit() * -1;
+
+ mousekey_send();
+}
+
+void mousekey_on(uint8_t code)
+{
+ if (code == KC_MS_UP) mouse_report.y = move_unit() * -1;
+ else if (code == KC_MS_DOWN) mouse_report.y = move_unit();
+ else if (code == KC_MS_LEFT) mouse_report.x = move_unit() * -1;
+ else if (code == KC_MS_RIGHT) mouse_report.x = move_unit();
+ else if (code == KC_MS_WH_UP) mouse_report.v = wheel_unit();
+ else if (code == KC_MS_WH_DOWN) mouse_report.v = wheel_unit() * -1;
+ else if (code == KC_MS_WH_LEFT) mouse_report.h = wheel_unit() * -1;
+ else if (code == KC_MS_WH_RIGHT) mouse_report.h = wheel_unit();
+ else if (code == KC_MS_BTN1) mouse_report.buttons |= MOUSE_BTN1;
+ else if (code == KC_MS_BTN2) mouse_report.buttons |= MOUSE_BTN2;
+ else if (code == KC_MS_BTN3) mouse_report.buttons |= MOUSE_BTN3;
+ else if (code == KC_MS_BTN4) mouse_report.buttons |= MOUSE_BTN4;
+ else if (code == KC_MS_BTN5) mouse_report.buttons |= MOUSE_BTN5;
+ else if (code == KC_MS_ACCEL0) mousekey_accel |= (1<<0);
+ else if (code == KC_MS_ACCEL1) mousekey_accel |= (1<<1);
+ else if (code == KC_MS_ACCEL2) mousekey_accel |= (1<<2);
+}
+
+void mousekey_off(uint8_t code)
+{
+ if (code == KC_MS_UP && mouse_report.y < 0) mouse_report.y = 0;
+ else if (code == KC_MS_DOWN && mouse_report.y > 0) mouse_report.y = 0;
+ else if (code == KC_MS_LEFT && mouse_report.x < 0) mouse_report.x = 0;
+ else if (code == KC_MS_RIGHT && mouse_report.x > 0) mouse_report.x = 0;
+ else if (code == KC_MS_WH_UP && mouse_report.v > 0) mouse_report.v = 0;
+ else if (code == KC_MS_WH_DOWN && mouse_report.v < 0) mouse_report.v = 0;
+ else if (code == KC_MS_WH_LEFT && mouse_report.h < 0) mouse_report.h = 0;
+ else if (code == KC_MS_WH_RIGHT && mouse_report.h > 0) mouse_report.h = 0;
+ else if (code == KC_MS_BTN1) mouse_report.buttons &= ~MOUSE_BTN1;
+ else if (code == KC_MS_BTN2) mouse_report.buttons &= ~MOUSE_BTN2;
+ else if (code == KC_MS_BTN3) mouse_report.buttons &= ~MOUSE_BTN3;
+ else if (code == KC_MS_BTN4) mouse_report.buttons &= ~MOUSE_BTN4;
+ else if (code == KC_MS_BTN5) mouse_report.buttons &= ~MOUSE_BTN5;
+ else if (code == KC_MS_ACCEL0) mousekey_accel &= ~(1<<0);
+ else if (code == KC_MS_ACCEL1) mousekey_accel &= ~(1<<1);
+ else if (code == KC_MS_ACCEL2) mousekey_accel &= ~(1<<2);
+
+ if (mouse_report.x == 0 && mouse_report.y == 0 && mouse_report.v == 0 && mouse_report.h == 0)
+ mousekey_repeat = 0;
+}
+
+void mousekey_send(void)
+{
+ mousekey_debug();
+ host_mouse_send(&mouse_report);
+ last_timer = timer_read();
+}
+
+void mousekey_clear(void)
+{
+ mouse_report = (report_mouse_t){};
+ mousekey_repeat = 0;
+ mousekey_accel = 0;
+}
+
+static void mousekey_debug(void)
+{
+ if (!debug_mouse) return;
+ print("mousekey [btn|x y v h](rep/acl): [");
+ phex(mouse_report.buttons); print("|");
+ print_decs(mouse_report.x); print(" ");
+ print_decs(mouse_report.y); print(" ");
+ print_decs(mouse_report.v); print(" ");
+ print_decs(mouse_report.h); print("](");
+ print_dec(mousekey_repeat); print("/");
+ print_dec(mousekey_accel); print(")\n");
+}
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