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Diffstat (limited to 'keyboards/ploopyco/trackball/trackball.c')
| -rw-r--r-- | keyboards/ploopyco/trackball/trackball.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/keyboards/ploopyco/trackball/trackball.c b/keyboards/ploopyco/trackball/trackball.c new file mode 100644 index 000000000..6a9bffbff --- /dev/null +++ b/keyboards/ploopyco/trackball/trackball.c @@ -0,0 +1,237 @@ +/* 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(); + } +} |