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