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diff --git a/keyboards/ploopyco/mouse/mouse.c b/keyboards/ploopyco/mouse/mouse.c
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+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
+ * Copyright 2019 Sunjun Kim
+ * Copyright 2020 Ploopy Corporation
+ *
+ * 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 QMK_KEYBOARD_H
+
+#ifndef OPT_DEBOUNCE
+# define OPT_DEBOUNCE 5 // (ms) Time between scroll events
+#endif
+#ifndef SCROLL_BUTT_DEBOUNCE
+# define SCROLL_BUTT_DEBOUNCE 100 // (ms) Time between scroll events
+#endif
+#ifndef OPT_THRES
+# define OPT_THRES 150 // (0-1024) Threshold for actication
+#endif
+#ifndef OPT_SCALE
+# define OPT_SCALE 1 // Multiplier for wheel
+#endif
+
+// TODO: Implement libinput profiles
+// https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html
+// Compile time accel selection
+// Valid options are ACC_NONE, ACC_LINEAR, ACC_CUSTOM, ACC_QUADRATIC
+
+// Trackball State
+bool is_scroll_clicked = false;
+bool BurstState = false; // init burst state for Trackball module
+uint16_t MotionStart = 0; // Timer for accel, 0 is resting state
+uint16_t lastScroll = 0; // Previous confirmed wheel event
+uint16_t lastMidClick = 0; // Stops scrollwheel from being read if it was pressed
+uint8_t OptLowPin = OPT_ENC1;
+bool debug_encoder = false;
+
+__attribute__((weak)) void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v) {
+ mouse_report->h = h;
+ mouse_report->v = v;
+}
+
+__attribute__((weak)) void process_wheel(report_mouse_t* mouse_report) {
+ // TODO: Replace this with interrupt driven code, polling is S L O W
+ // Lovingly ripped from the Ploopy Source
+
+ // If the mouse wheel was just released, do not scroll.
+ if (timer_elapsed(lastMidClick) < SCROLL_BUTT_DEBOUNCE) {
+ return;
+ }
+
+ // Limit the number of scrolls per unit time.
+ if (timer_elapsed(lastScroll) < OPT_DEBOUNCE) {
+ return;
+ }
+
+ // Don't scroll if the middle button is depressed.
+ if (is_scroll_clicked) {
+#ifndef IGNORE_SCROLL_CLICK
+ return;
+#endif
+ }
+
+ lastScroll = timer_read();
+ uint16_t p1 = adc_read(OPT_ENC1_MUX);
+ uint16_t p2 = adc_read(OPT_ENC2_MUX);
+ if (debug_encoder) dprintf("OPT1: %d, OPT2: %d\n", p1, p2);
+
+ uint8_t dir = opt_encoder_handler(p1, p2);
+
+ if (dir == 0) return;
+ process_wheel_user(mouse_report, mouse_report->h, (int)(mouse_report->v + (dir * OPT_SCALE)));
+}
+
+__attribute__((weak)) void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y) {
+ mouse_report->x = x;
+ mouse_report->y = y;
+}
+
+__attribute__((weak)) void process_mouse(report_mouse_t* mouse_report) {
+ report_pmw_t data = pmw_read_burst();
+ if (data.isOnSurface && data.isMotion) {
+ // Reset timer if stopped moving
+ if (!data.isMotion) {
+ if (MotionStart != 0) MotionStart = 0;
+ return;
+ }
+
+ // Set timer if new motion
+ if ((MotionStart == 0) && data.isMotion) {
+ if (debug_mouse) dprintf("Starting motion.\n");
+ MotionStart = timer_read();
+ }
+
+ if (debug_mouse) {
+ dprintf("Delt] d: %d t: %u\n", abs(data.dx) + abs(data.dy), MotionStart);
+ }
+ if (debug_mouse) {
+ dprintf("Pre ] X: %d, Y: %d\n", data.dx, data.dy);
+ }
+#if defined(PROFILE_LINEAR)
+ float scale = float(timer_elaspsed(MotionStart)) / 1000.0;
+ data.dx *= scale;
+ data.dy *= scale;
+#elif defined(PROFILE_INVERSE)
+ // TODO
+#else
+ // no post processing
+#endif
+ // apply multiplier
+ // data.dx *= mouse_multiplier;
+ // data.dy *= mouse_multiplier;
+
+ // Wrap to HID size
+ data.dx = constrain(data.dx, -127, 127);
+ data.dy = constrain(data.dy, -127, 127);
+ if (debug_mouse) dprintf("Cons] X: %d, Y: %d\n", data.dx, data.dy);
+ // dprintf("Elapsed:%u, X: %f Y: %\n", i, pgm_read_byte(firmware_data+i));
+
+ process_mouse_user(mouse_report, data.dx, data.dy);
+ }
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t* record) {
+ if (debug_mouse) {
+ dprintf("KL: kc: %u, col: %u, row: %u, pressed: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed);
+ }
+
+ // Update Timer to prevent accidental scrolls
+ if ((record->event.key.col == 2) && (record->event.key.row == 0)) {
+ lastMidClick = timer_read();
+ is_scroll_clicked = record->event.pressed;
+ }
+
+/* If Mousekeys is disabled, then use handle the mouse button
+ * keycodes. This makes things simpler, and allows usage of
+ * the keycodes in a consistent manner. But only do this if
+ * Mousekeys is not enable, so it's not handled twice.
+ */
+#ifndef MOUSEKEY_ENABLE
+ if (IS_MOUSEKEY_BUTTON(keycode)) {
+ report_mouse_t currentReport = pointing_device_get_report();
+ if (record->event.pressed) {
+ if (keycode == KC_MS_BTN1)
+ currentReport.buttons |= MOUSE_BTN1;
+ else if (keycode == KC_MS_BTN2)
+ currentReport.buttons |= MOUSE_BTN2;
+ else if (keycode == KC_MS_BTN3)
+ currentReport.buttons |= MOUSE_BTN3;
+ else if (keycode == KC_MS_BTN4)
+ currentReport.buttons |= MOUSE_BTN4;
+ else if (keycode == KC_MS_BTN5)
+ currentReport.buttons |= MOUSE_BTN5;
+ } else {
+ if (keycode == KC_MS_BTN1)
+ currentReport.buttons &= ~MOUSE_BTN1;
+ else if (keycode == KC_MS_BTN2)
+ currentReport.buttons &= ~MOUSE_BTN2;
+ else if (keycode == KC_MS_BTN3)
+ currentReport.buttons &= ~MOUSE_BTN3;
+ else if (keycode == KC_MS_BTN4)
+ currentReport.buttons &= ~MOUSE_BTN4;
+ else if (keycode == KC_MS_BTN5)
+ currentReport.buttons &= ~MOUSE_BTN5;
+ }
+ pointing_device_set_report(currentReport);
+ }
+#endif
+
+ return process_record_user(keycode, record);
+}
+
+// Hardware Setup
+void keyboard_pre_init_kb(void) {
+ // debug_enable = true;
+ // debug_matrix = true;
+ // debug_mouse = true;
+ // debug_encoder = true;
+
+ setPinInput(OPT_ENC1);
+ setPinInput(OPT_ENC2);
+
+ // This is the debug LED.
+ setPinOutput(F7);
+ writePin(F7, debug_enable);
+
+ /* Ground all output pins connected to ground. This provides additional
+ * pathways to ground. If you're messing with this, know this: driving ANY
+ * of these pins high will cause a short. On the MCU. Ka-blooey.
+ */
+#ifdef UNUSED_PINS
+ const pin_t unused_pins[] = UNUSED_PINS;
+
+ for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
+ setPinOutput(unused_pins[i]);
+ writePinLow(unused_pins[i]);
+ }
+#endif
+ keyboard_pre_init_user();
+}
+
+void pointing_device_init(void) {
+ // initialize ball sensor
+ pmw_spi_init();
+ // initialize the scroll wheel's optical encoder
+ opt_encoder_init();
+}
+
+bool has_report_changed (report_mouse_t first, report_mouse_t second) {
+ return !(
+ (!first.buttons && first.buttons == second.buttons) &&
+ (!first.x && first.x == second.x) &&
+ (!first.y && first.y == second.y) &&
+ (!first.h && first.h == second.h) &&
+ (!first.v && first.v == second.v) );
+}
+
+void pointing_device_task(void) {
+ report_mouse_t mouse_report = pointing_device_get_report();
+ process_wheel(&mouse_report);
+ process_mouse(&mouse_report);
+
+ pointing_device_set_report(mouse_report);
+ if (has_report_changed(mouse_report, pointing_device_get_report())) {
+ pointing_device_send();
+ }
+}