[Keyboard] Add PloopyCo devices (#7935)

* Initial Commit for Ploopyco Trackball This is a WIP at this point. Most of it compiles, but the SPI commands are non-functioning as they come from Arduino, so don't exist in LUFA * Convert SPI commands from arduino to LUFA But I have no idea if this is actually correct or not * Update keyboard readme * Clean up ploopyco trackball * Update readme * Update mouse key stuff * last minutue cleanup * Add caveat about scroll wheel * Fixup to code * Additional fixup * Add movement multiplier * Rename folders * mid changes * temp * Got it working!!!!! * Additional cleanup of code * Make unused pin calls more compact * Rotation info * Add debouncing checks * Make everything replaceable * Add info.json * Include ISP flashing info * Better handling for user customization * Reconfigure CPI stuff * fix issues with debug printing * Fix tiny scroll issue * Add and update scroll code from ploopy mouse * Update licensing * Add PloopyCo Mouse * Cleanup and layout stuff * Move common files to main folder for reuse * Increase polling rate * Update image for mouse * Apply changes from code review * Add VIA support
3 years ago · fbdc65e2e9
--- a/keyboards/ploopyco/mouse/config.h
+++ b/keyboards/ploopyco/mouse/config.h
@ -0,0 +1,73 @@
 /* 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/>.
 */

 #pragma once

 #include "config_common.h"

 /* USB Device descriptor parameter */
 #define VENDOR_ID 0x5043
 #define PRODUCT_ID 0x4D6F
 #define DEVICE_VER 0x0001
 #define MANUFACTURER Ploopyco
 #define PRODUCT Mouse

 /* key matrix size */
 #define MATRIX_ROWS 1
 #define MATRIX_COLS 8

 /*
 * Keyboard Matrix Assignments
 *
 * Change this to how you wired your keyboard
 * COLS: AVR pins used for columns, left to right
 * ROWS: AVR pins used for rows, top to bottom
 * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
 *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
 *
 */
 #define DIRECT_PINS                        \
    {                                      \
        { D4, D2, E6, B6, D7, C6, C7, B7 } \
    }

 // These pins are not broken out, and cannot be used normally.
 // They are set as output and pulled high, by default
 #define UNUSED_PINS \
    { B4, D6, F1, F5, F6, F7 }

 /* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
 #define DEBOUNCE 5

 /* Much more so than a keyboard, speed matters for a mouse. So we'll go for as high
   a polling rate as possible. */
 #define USB_POLLING_INTERVAL_MS 1

 /* define if matrix has ghost (lacks anti-ghosting diodes) */
 //#define MATRIX_HAS_GHOST

 /* disable action features */
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
 #define NO_ACTION_MACRO
 #define NO_ACTION_FUNCTION

 /* Bootmagic Lite key configuration */
 #define BOOTMAGIC_LITE_ROW 0
 #define BOOTMAGIC_LITE_COLUMN 3
--- a/keyboards/ploopyco/mouse/info.json
+++ b/keyboards/ploopyco/mouse/info.json
@ -0,0 +1,21 @@
 {
    "keyboard_name": "PloopyCo Mouse",
    "url": "",
    "maintainer": "drashna",
    "width": 8,
    "height": 3,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":1, "y":0, "h":2},
                {"x":2, "y":0, "h":2},
                {"x":3, "y":0.25, "h":1.25},
                {"x":4, "y":0, "h":2},
                {"x":5, "y":0, "h":2},
                {"x":0, "y":0},
                {"x":0, "y":1},
                {"x":3, "y":1.5}
            ]
        }
    }
 }
--- a/keyboards/ploopyco/mouse/keymaps/default/keymap.c
+++ b/keyboards/ploopyco/mouse/keymaps/default/keymap.c
@ -0,0 +1,23 @@
 /* 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

 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT(/* Base */
                 C(KC_C), KC_BTN1, KC_BTN3, KC_BTN2, C(KC_C), KC_BTN4, KC_BTN5, C(KC_Z)),
 };
--- a/keyboards/ploopyco/mouse/keymaps/default/readme.md
+++ b/keyboards/ploopyco/mouse/keymaps/default/readme.md
@ -0,0 +1 @@
 # The default keymap for Ploopyco Trackball
--- a/keyboards/ploopyco/mouse/keymaps/via/keymap.c
+++ b/keyboards/ploopyco/mouse/keymaps/via/keymap.c
@ -0,0 +1,26 @@
 /* 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

 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT(/* Base */
                 C(KC_C), KC_BTN1, KC_BTN3, KC_BTN2, C(KC_C), KC_BTN4, KC_BTN5, C(KC_Z)),
    [1] = LAYOUT(_______, _______, _______, _______, _______, _______, _______, _______),
    [2] = LAYOUT(_______, _______, _______, _______, _______, _______, _______, _______),
    [3] = LAYOUT(_______, _______, _______, _______, _______, _______, _______, _______),
 };
--- a/keyboards/ploopyco/mouse/keymaps/via/rules.mk
+++ b/keyboards/ploopyco/mouse/keymaps/via/rules.mk
@ -0,0 +1 @@
 VIA_ENABLE = yes
--- a/keyboards/ploopyco/mouse/mouse.c
+++ b/keyboards/ploopyco/mouse/mouse.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();
    }
 }
--- a/keyboards/ploopyco/mouse/mouse.h
+++ b/keyboards/ploopyco/mouse/mouse.h
@ -0,0 +1,40 @@
 /* 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/>.
 */

 #pragma once

 #include "quantum.h"
 #include "spi_master.h"
 #include "pmw3600.h"
 #include "analog.h"
 #include "opt_encoder.h"
 #include "pointing_device.h"

 // Sensor defs
 #define OPT_ENC1 F0
 #define OPT_ENC2 F4
 #define OPT_ENC1_MUX 0
 #define OPT_ENC2_MUX 4

 void process_mouse(report_mouse_t* mouse_report);
 void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y);
 void process_wheel(report_mouse_t* mouse_report);
 void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v);

 #define LAYOUT(BLL, BL, BM, BR, BRR, BF, BB, BDPI) \
    { {BL, BM, BR, BF, BB, BRR, BLL, BDPI}, }
--- a/keyboards/ploopyco/mouse/readme.md
+++ b/keyboards/ploopyco/mouse/readme.md
@ -0,0 +1,68 @@
 # Ploopyco Mouse

 ![Ploopyco Mouse](https://i.redd.it/bf7bkzqzeti51.jpg)

 It's a DIY, QMK Powered Trackball!!!!

 Everything works. However the scroll wheel has some issues and acts very odd.

 * Keyboard Maintainer: [PloopyCo](https://github.com/ploopyco), [Drashna Jael're](https://github.com/drashna/), [Germ](https://github.com/germ/)
 * Hardware Supported: ATMega32u4 8MHz(3.3v)  
 * Hardware Availability: [Store](https://ploopy.co), [GitHub](https://github.com/ploopyco)

 Make example for this keyboard (after setting up your build environment):

    make ploopyco/mouse:default:flash
    
 To jump to the bootloader, hold down "Button 4" (immediate right of the Mouse) 

 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

 # Customzing your PloopyCo Trackball

 While the defaults are designed so that it can be plugged in and used right away, there are a number of things that you may want to change.  Such as adding DPI control, or to use the ball to scroll while holding a button.   To allow for this sort of control, there is a callback for both the scroll wheel and the mouse censor. 

 The default behavior for this is:

 ```c
 void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v) {
    mouse_report->h = h;
    mouse_report->v = v;
 }

 void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y) {
    mouse_report->x = x;
    mouse_report->y = y;
 }
 ```

 This should allow you to more heavily customize the behavior. 

 Alternatively, the `process_wheel` and `process_mouse` functions can both be replaced too, to allow for even more functionality.

 Additionally, you can change the DPI/CPI or speed of the Mouse by calling `pmw_set_cpi` at any time. And tThe default can be changed by adding a define to the keymap's `config.h` file:

    #define PMW_CPI 1600

 # Programming QMK-DFU onto the PloopyCo Mouse

 If you would rather have DFU on this board, you can use the QMK-DFU bootloader on the device.  To do so, you want to run: 

    make ploopyco/trackball:default:production

 Once you have that, you'll need to [ISP Flash](https://docs.qmk.fm/#/isp_flashing_guide) the chip with the new bootloader hex file created (or the production hex), and set the fuses:


 | Fuse     | Setting          |
 |----------|------------------|
 | Low      | `0xDF`           |
 | High     | `0xD8` or `0x98` |
 | Extended | `0xCB`           |

 Original (Caterina) settings: 

 | Fuse     | Setting          |
 |----------|------------------|
 | Low      | `0xFF`           |
 | High     | `0xD8`           |
 | Extended | `0xFE`           |
--- a/keyboards/ploopyco/mouse/rules.mk
+++ b/keyboards/ploopyco/mouse/rules.mk
@ -0,0 +1,30 @@
 # MCU name
 MCU = atmega32u4

 # Processor frequency
 F_CPU = 8000000

 # Bootloader selection
 BOOTLOADER = caterina

 # Build Options
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
 EXTRAKEY_ENABLE = yes       # Audio control and System control
 CONSOLE_ENABLE = yes         # Console for debug
 COMMAND_ENABLE = no        # Commands for debug and configuration
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 NKRO_ENABLE = no            # USB Nkey Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
 POINTING_DEVICE_ENABLE = yes
 MOUSEKEY_ENABLE = no        # Mouse keys

 QUANTUM_LIB_SRC += analog.c spi_master.c
 SRC += pmw3600.c opt_encoder.c
--- a/keyboards/ploopyco/opt_encoder.c
+++ b/keyboards/ploopyco/opt_encoder.c
@ -0,0 +1,211 @@
 /* Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
 * 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 "opt_encoder.h"

 /* Setup function for the scroll wheel. Initializes
   the relevant variables. */
 void opt_encoder_init(void) {
    state            = HIHI;
    lohif            = false;
    hilof            = false;
    lowA             = 1023;
    highA            = 0;
    cLowA            = false;
    cHighA           = false;
    lowIndexA        = 0;
    highIndexA       = 0;
    lowOverflowA     = false;
    highOverflowA    = false;
    lowB             = 1023;
    highB            = 0;
    cLowB            = false;
    cHighB           = false;
    lowIndexB        = 0;
    highIndexB       = 0;
    lowOverflowB     = false;
    highOverflowB    = false;
    scrollThresholdA = 0;
    scrollThresholdB = 0;
 }

 int opt_encoder_handler(int curA, int curB) {
    if (lowOverflowA == false || highOverflowA == false) calculateThresholdA(curA);
    if (lowOverflowB == false || highOverflowB == false) calculateThresholdB(curB);

    bool LO = false;
    bool HI = true;
    bool sA, sB;
    int  ret = 0;

    if (curA < scrollThresholdA)
        sA = LO;
    else
        sA = HI;

    if (curB < scrollThresholdB)
        sB = LO;
    else
        sB = HI;

    if (state == HIHI) {
        if (sA == LO && sB == HI) {
            state = LOHI;
            if (hilof) {
                ret   = 1;
                hilof = false;
            }
        } else if (sA == HI && sB == LO) {
            state = HILO;
            if (lohif) {
                ret   = -1;
                lohif = false;
            }
        }
    }

    else if (state == HILO) {
        if (sA == HI && sB == HI) {
            state = HIHI;
            hilof = true;
            lohif = false;
        } else if (sA == LO && sB == LO) {
            state = LOLO;
            hilof = true;
            lohif = false;
        }
    }

    else if (state == LOLO) {
        if (sA == HI && sB == LO) {
            state = HILO;
            if (lohif) {
                ret   = 1;
                lohif = false;
            }
        } else if (sA == LO && sB == HI) {
            state = LOHI;
            if (hilof) {
                ret   = -1;
                hilof = false;
            }
        }
    }

    else {  // state must be LOHI
        if (sA == HI && sB == HI) {
            state = HIHI;
            lohif = true;
            hilof = false;
        } else if (sA == LO && sB == LO) {
            state = LOLO;
            lohif = true;
            hilof = false;
        }
    }

    return ret;
 }

 void calculateThresholdA(int curA) { scrollThresholdA = calculateThreshold(curA, &lowA, &highA, &cLowA, &cHighA, arLowA, arHighA, &lowIndexA, &highIndexA, &lowOverflowA, &highOverflowA); }

 void calculateThresholdB(int curB) { scrollThresholdB = calculateThreshold(curB, &lowB, &highB, &cLowB, &cHighB, arLowB, arHighB, &lowIndexB, &highIndexB, &lowOverflowB, &highOverflowB); }

 int calculateThreshold(int cur, int* low, int* high, bool* cLow, bool* cHigh, int arLow[], int arHigh[], int* lowIndex, int* highIndex, bool* lowOverflow, bool* highOverflow) {
    if (cur < *low) *low = cur;
    if (cur > *high) *high = cur;

    int curThresh = thresholdEquation(*low, *high);
    int range     = *high - *low;

    // The range is enforced to be over a certain limit because noise
    // can cause erroneous readings, making these calculations unstable.
    if (range >= SCROLL_THRESH_RANGE_LIM) {
        if (cur < curThresh) {
            if (*cHigh == true) {
                // We were just high, and now we crossed to low.
                // high reflects a sample of a high reading.
                arHigh[*highIndex] = *high;
                incrementIndex(highIndex, highOverflow);
                int midpoint = ((*high - *low) / 2) + *low;
                *low         = midpoint;
                *high        = midpoint;
                *cLow        = false;
                *cHigh       = false;
            } else {
                *cLow = true;
            }
        }
        if (cur > curThresh) {
            if (*cLow == true) {
                // We were just low, and now we crossed to high.
                // low reflects a sample of a low reading.
                arLow[*lowIndex] = *low;
                incrementIndex(lowIndex, lowOverflow);
                int midpoint = ((*high - *low) / 2) + *low;
                *low         = midpoint;
                *high        = midpoint;
                *cLow        = false;
                *cHigh       = false;
            } else {
                *cHigh = true;
            }
        }
    }

    int calcHigh = 0;
    if (*highOverflow == true) {
        for (int i = 0; i < SCROLLER_AR_SIZE; i++) {
            calcHigh += arHigh[i];
        }
        calcHigh = calcHigh / SCROLLER_AR_SIZE;
    } else if (*highIndex != 0) {
        for (int i = 0; i < *highIndex; i++) {
            calcHigh += arHigh[i];
        }
        calcHigh = calcHigh / *highIndex;
    } else {
        calcHigh = *high;
    }

    int calcLow = 0;
    if (*lowOverflow == true) {
        for (int i = 0; i < SCROLLER_AR_SIZE; i++) {
            calcLow += arLow[i];
        }
        calcLow = calcLow / SCROLLER_AR_SIZE;
    } else if (*lowIndex != 0) {
        for (int i = 0; i < *lowIndex; i++) {
            calcLow += arLow[i];
        }
        calcLow = calcLow / *lowIndex;
    } else {
        calcLow = *low;
    }

    return thresholdEquation(calcLow, calcHigh);
 }

 int thresholdEquation(int lo, int hi) { return ((hi - lo) / 3) + lo; }

 void incrementIndex(int* index, bool* ovflw) {
    if (*index < SCROLLER_AR_SIZE - 1)
        (*index)++;
    else {
        *index = 0;
        *ovflw = true;
    }
 }
--- a/keyboards/ploopyco/opt_encoder.h
+++ b/keyboards/ploopyco/opt_encoder.h
@ -0,0 +1,66 @@
 /* Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
 * 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/>.
 */
 #pragma once

 #include <stdbool.h>

 #ifndef SCROLLER_AR_SIZE
 #    define SCROLLER_AR_SIZE 31
 #endif

 #ifndef SCROLL_THRESH_RANGE_LIM
 #    define SCROLL_THRESH_RANGE_LIM 10
 #endif

 enum State { HIHI, HILO, LOLO, LOHI };

 enum State state;

 /* Variables used for scroll wheel functionality. */
 bool lohif;
 bool hilof;
 int  lowA;
 int  highA;
 bool cLowA;
 bool cHighA;
 int  lowIndexA;
 int  highIndexA;
 bool lowOverflowA;
 bool highOverflowA;
 int  lowB;
 int  highB;
 bool cLowB;
 bool cHighB;
 int  lowIndexB;
 int  highIndexB;
 bool lowOverflowB;
 bool highOverflowB;
 int  scrollThresholdA;
 int  scrollThresholdB;
 int  arLowA[SCROLLER_AR_SIZE];
 int  arHighA[SCROLLER_AR_SIZE];
 int  arLowB[SCROLLER_AR_SIZE];
 int  arHighB[SCROLLER_AR_SIZE];

 void calculateThresholdA(int curA);
 void calculateThresholdB(int curB);
 int  calculateThreshold(int cur, int* low, int* high, bool* cLow, bool* cHigh, int arLow[], int arHigh[], int* lowIndex, int* highIndex, bool* lowOverflow, bool* highOverflow);
 int  thresholdEquation(int lo, int hi);
 void incrementIndex(int* index, bool* ovflw);

 void opt_encoder_init(void);
 int  opt_encoder_handler(int curA, int curB);
--- a/keyboards/ploopyco/pmw3600.c
+++ b/keyboards/ploopyco/pmw3600.c
@ -0,0 +1,222 @@
 /* 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 "pmw3600.h"
 #include "pmw3600_firmware.h"
 #ifdef CONSOLE_ENABLE
 #    include "print.h"
 #endif
 bool _inBurst = false;

 #ifndef PMW_CPI
 #    define PMW_CPI 1600
 #endif
 #ifndef SPI_DIVISOR
 #    define SPI_DIVISOR 2
 #endif

 static const int8_t ROTATIONAL_TRANSFORM_ANGLE = 20;

 #ifdef CONSOLE_ENABLE
 void print_byte(uint8_t byte) { dprintf("%c%c%c%c%c%c%c%c|", (byte & 0x80 ? '1' : '0'), (byte & 0x40 ? '1' : '0'), (byte & 0x20 ? '1' : '0'), (byte & 0x10 ? '1' : '0'), (byte & 0x08 ? '1' : '0'), (byte & 0x04 ? '1' : '0'), (byte & 0x02 ? '1' : '0'), (byte & 0x01 ? '1' : '0')); }
 #endif


 bool spi_start_adv(void) {
    bool status = spi_start(SPI_SS_PIN, false, 3, SPI_DIVISOR);
    wait_us(1);
    return status;
 }

 void spi_stop_adv(void) {
    wait_us(1);
    spi_stop();
 }

 spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data) {
    if (reg_addr != REG_Motion_Burst) {
        _inBurst = false;
    }

    spi_start_adv();
    // send address of the register, with MSBit = 1 to indicate it's a write
    spi_status_t status = spi_write(reg_addr | 0x80);
    status = spi_write(data);

    // tSCLK-NCS for write operation
    wait_us(20);

    // tSWW/tSWR (=120us) minus tSCLK-NCS. Could be shortened, but is looks like a safe lower bound
    wait_us(100);
    spi_stop();
    return status;
 }

 uint8_t spi_read_adv(uint8_t reg_addr) {
    spi_start_adv();
    // send adress of the register, with MSBit = 0 to indicate it's a read
    spi_write(reg_addr & 0x7f);

    uint8_t data = spi_read();

    // tSCLK-NCS for read operation is 120ns
    wait_us(1);

    //  tSRW/tSRR (=20us) minus tSCLK-NCS
    wait_us(19);

    spi_stop();
    return data;
 }

 void pmw_set_cpi(uint16_t cpi) {
    int cpival = constrain((cpi / 100) - 1, 0, 0x77);  // limits to 0--119

    spi_start_adv();
    spi_write_adv(REG_Config1, cpival);
    spi_stop();
 }

 bool pmw_spi_init(void) {
    spi_init();
    _inBurst = false;

    spi_stop();
    spi_start_adv();
    spi_stop();

    spi_write_adv(REG_Shutdown, 0xb6); // Shutdown first
    wait_ms(300);

    spi_start_adv();
    wait_us(40);
    spi_stop_adv();
    wait_us(40);

    spi_write_adv(REG_Power_Up_Reset, 0x5a);
    wait_ms(50);

    spi_read_adv(REG_Motion);
    spi_read_adv(REG_Delta_X_L);
    spi_read_adv(REG_Delta_X_H);
    spi_read_adv(REG_Delta_Y_L);
    spi_read_adv(REG_Delta_Y_H);

    pmw_upload_firmware();

    spi_write_adv(REG_Angle_Tune, constrain(ROTATIONAL_TRANSFORM_ANGLE, -30, 30));
    spi_stop_adv();

    wait_ms(10);
    pmw_set_cpi(PMW_CPI);

    wait_ms(1);

    return pmw_check_signature();
 }

 void pmw_upload_firmware(void) {
    spi_write_adv(REG_Config2, 0x00);

    spi_write_adv(REG_SROM_Enable, 0x1d);

    wait_ms(10);

    spi_write_adv(REG_SROM_Enable, 0x18);

    spi_start_adv();
    spi_write(REG_SROM_Load_Burst | 0x80);
    wait_us(15);

    unsigned char c;
    for (int i = 0; i < firmware_length; i++) {
        c = (unsigned char)pgm_read_byte(firmware_data + i);
        spi_write(c);
        wait_us(15);
    }
    wait_us(200);

    spi_read_adv(REG_SROM_ID);

    spi_write_adv(REG_Config2, 0x00);

    spi_stop();
    wait_ms(10);
 }

 bool pmw_check_signature(void) {
    uint8_t pid      = spi_read_adv(REG_Product_ID);
    uint8_t iv_pid   = spi_read_adv(REG_Inverse_Product_ID);
    uint8_t SROM_ver = spi_read_adv(REG_SROM_ID);
    return (pid == 0x42 && iv_pid == 0xBD && SROM_ver == 0x04);  // signature for SROM 0x04
 }

 report_pmw_t pmw_read_burst(void) {
    if (!_inBurst) {
 #ifdef CONSOLE_ENABLE
        dprintf("burst on");
 #endif
        spi_write_adv(REG_Motion_Burst, 0x00);
        _inBurst = true;
    }

    spi_start_adv();
    spi_write(REG_Motion_Burst);
    wait_us(35);  // waits for tSRAD

    report_pmw_t data;
    data.motion = 0;
    data.dx     = 0;
    data.mdx    = 0;
    data.dy     = 0;
    data.mdx    = 0;

    data.motion = spi_read();
    spi_write(0x00);  // skip Observation
    data.dx  = spi_read();
    data.mdx = spi_read();
    data.dy  = spi_read();
    data.mdy = spi_read();

    spi_stop();

 #ifdef CONSOLE_ENABLE
    print_byte(data.motion);
    print_byte(data.dx);
    print_byte(data.mdx);
    print_byte(data.dy);
    print_byte(data.mdy);
    dprintf("\n");
 #endif

    data.isMotion    = (data.motion & 0x80) != 0;
    data.isOnSurface = (data.motion & 0x08) == 0;
    data.dx |= (data.mdx << 8);
    data.dx = data.dx * -1;
    data.dy |= (data.mdy << 8);
    // data.dy = data.dy * -1;

    spi_stop();

    if (data.motion & 0b111) {  // panic recovery, sometimes burst mode works weird.
        _inBurst = false;
    }

    return data;
 }
--- a/keyboards/ploopyco/pmw3600.h
+++ b/keyboards/ploopyco/pmw3600.h
@ -0,0 +1,103 @@
 /* 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/>.
 */

 #pragma once

 #include "spi_master.h"

 // Registers
 #define REG_Product_ID  0x00
 #define REG_Revision_ID 0x01
 #define REG_Motion  0x02
 #define REG_Delta_X_L 0x03
 #define REG_Delta_X_H 0x04
 #define REG_Delta_Y_L 0x05
 #define REG_Delta_Y_H 0x06
 #define REG_SQUAL 0x07
 #define REG_Raw_Data_Sum  0x08
 #define REG_Maximum_Raw_data  0x09
 #define REG_Minimum_Raw_data  0x0A
 #define REG_Shutter_Lower 0x0B
 #define REG_Shutter_Upper 0x0C
 #define REG_Control 0x0D
 #define REG_Config1 0x0F
 #define REG_Config2 0x10
 #define REG_Angle_Tune  0x11
 #define REG_Frame_Capture 0x12
 #define REG_SROM_Enable 0x13
 #define REG_Run_Downshift 0x14
 #define REG_Rest1_Rate_Lower  0x15
 #define REG_Rest1_Rate_Upper  0x16
 #define REG_Rest1_Downshift 0x17
 #define REG_Rest2_Rate_Lower  0x18
 #define REG_Rest2_Rate_Upper  0x19
 #define REG_Rest2_Downshift 0x1A
 #define REG_Rest3_Rate_Lower  0x1B
 #define REG_Rest3_Rate_Upper  0x1C
 #define REG_Observation 0x24
 #define REG_Data_Out_Lower  0x25
 #define REG_Data_Out_Upper  0x26
 #define REG_Raw_Data_Dump 0x29
 #define REG_SROM_ID 0x2A
 #define REG_Min_SQ_Run  0x2B
 #define REG_Raw_Data_Threshold  0x2C
 #define REG_Config5 0x2F
 #define REG_Power_Up_Reset  0x3A
 #define REG_Shutdown  0x3B
 #define REG_Inverse_Product_ID  0x3F
 #define REG_LiftCutoff_Tune3  0x41
 #define REG_Angle_Snap  0x42
 #define REG_LiftCutoff_Tune1  0x4A
 #define REG_Motion_Burst  0x50
 #define REG_LiftCutoff_Tune_Timeout 0x58
 #define REG_LiftCutoff_Tune_Min_Length  0x5A
 #define REG_SROM_Load_Burst 0x62
 #define REG_Lift_Config 0x63
 #define REG_Raw_Data_Burst  0x64
 #define REG_LiftCutoff_Tune2  0x65

 #ifdef CONSOLE_ENABLE
 void print_byte(uint8_t byte);
 #endif

 typedef struct {
    int8_t  motion;
    bool    isMotion;     // True if a motion is detected.
    bool    isOnSurface;  // True when a chip is on a surface
    int16_t dx;           // displacement on x directions. Unit: Count. (CPI * Count = Inch value)
    int8_t  mdx;
    int16_t dy;  // displacement on y directions.
    int8_t  mdy;
 } report_pmw_t;



 bool spi_start_adv(void);
 void spi_stop_adv(void);
 spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data);
 uint8_t spi_read_adv(uint8_t reg_addr);
 bool pmw_spi_init(void);
 void pmw_set_cpi(uint16_t cpi);
 void pmw_upload_firmware(void);
 bool pmw_check_signature(void);
 report_pmw_t pmw_read_burst(void);


 #define degToRad(angleInDegrees) ((angleInDegrees)*M_PI / 180.0)
 #define radToDeg(angleInRadians) ((angleInRadians)*180.0 / M_PI)
 #define constrain(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))
--- a/keyboards/ploopyco/pmw3600_firmware.h
+++ b/keyboards/ploopyco/pmw3600_firmware.h
@ -0,0 +1,300 @@
 /* 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/>.
 */

 #pragma once

 // clang-format off
 // Firmware Blob foor PMW3360
 const uint16_t firmware_length = 4094;
 // clang-format off
 const uint8_t firmware_data[] PROGMEM = {    // SROM 0x04
 0x01, 0x04, 0x8e, 0x96, 0x6e, 0x77, 0x3e, 0xfe, 0x7e, 0x5f, 0x1d, 0xb8, 0xf2, 0x66, 0x4e,
 0xff, 0x5d, 0x19, 0xb0, 0xc2, 0x04, 0x69, 0x54, 0x2a, 0xd6, 0x2e, 0xbf, 0xdd, 0x19, 0xb0,
 0xc3, 0xe5, 0x29, 0xb1, 0xe0, 0x23, 0xa5, 0xa9, 0xb1, 0xc1, 0x00, 0x82, 0x67, 0x4c, 0x1a,
 0x97, 0x8d, 0x79, 0x51, 0x20, 0xc7, 0x06, 0x8e, 0x7c, 0x7c, 0x7a, 0x76, 0x4f, 0xfd, 0x59,
 0x30, 0xe2, 0x46, 0x0e, 0x9e, 0xbe, 0xdf, 0x1d, 0x99, 0x91, 0xa0, 0xa5, 0xa1, 0xa9, 0xd0,
 0x22, 0xc6, 0xef, 0x5c, 0x1b, 0x95, 0x89, 0x90, 0xa2, 0xa7, 0xcc, 0xfb, 0x55, 0x28, 0xb3,
 0xe4, 0x4a, 0xf7, 0x6c, 0x3b, 0xf4, 0x6a, 0x56, 0x2e, 0xde, 0x1f, 0x9d, 0xb8, 0xd3, 0x05,
 0x88, 0x92, 0xa6, 0xce, 0x1e, 0xbe, 0xdf, 0x1d, 0x99, 0xb0, 0xe2, 0x46, 0xef, 0x5c, 0x07,
 0x11, 0x5d, 0x98, 0x0b, 0x9d, 0x94, 0x97, 0xee, 0x4e, 0x45, 0x33, 0x6b, 0x44, 0xc7, 0x29,
 0x56, 0x27, 0x30, 0xc6, 0xa7, 0xd5, 0xf2, 0x56, 0xdf, 0xb4, 0x38, 0x62, 0xcb, 0xa0, 0xb6,
 0xe3, 0x0f, 0x84, 0x06, 0x24, 0x05, 0x65, 0x6f, 0x76, 0x89, 0xb5, 0x77, 0x41, 0x27, 0x82,
 0x66, 0x65, 0x82, 0xcc, 0xd5, 0xe6, 0x20, 0xd5, 0x27, 0x17, 0xc5, 0xf8, 0x03, 0x23, 0x7c,
 0x5f, 0x64, 0xa5, 0x1d, 0xc1, 0xd6, 0x36, 0xcb, 0x4c, 0xd4, 0xdb, 0x66, 0xd7, 0x8b, 0xb1,
 0x99, 0x7e, 0x6f, 0x4c, 0x36, 0x40, 0x06, 0xd6, 0xeb, 0xd7, 0xa2, 0xe4, 0xf4, 0x95, 0x51,
 0x5a, 0x54, 0x96, 0xd5, 0x53, 0x44, 0xd7, 0x8c, 0xe0, 0xb9, 0x40, 0x68, 0xd2, 0x18, 0xe9,
 0xdd, 0x9a, 0x23, 0x92, 0x48, 0xee, 0x7f, 0x43, 0xaf, 0xea, 0x77, 0x38, 0x84, 0x8c, 0x0a,
 0x72, 0xaf, 0x69, 0xf8, 0xdd, 0xf1, 0x24, 0x83, 0xa3, 0xf8, 0x4a, 0xbf, 0xf5, 0x94, 0x13,
 0xdb, 0xbb, 0xd8, 0xb4, 0xb3, 0xa0, 0xfb, 0x45, 0x50, 0x60, 0x30, 0x59, 0x12, 0x31, 0x71,
 0xa2, 0xd3, 0x13, 0xe7, 0xfa, 0xe7, 0xce, 0x0f, 0x63, 0x15, 0x0b, 0x6b, 0x94, 0xbb, 0x37,
 0x83, 0x26, 0x05, 0x9d, 0xfb, 0x46, 0x92, 0xfc, 0x0a, 0x15, 0xd1, 0x0d, 0x73, 0x92, 0xd6,
 0x8c, 0x1b, 0x8c, 0xb8, 0x55, 0x8a, 0xce, 0xbd, 0xfe, 0x8e, 0xfc, 0xed, 0x09, 0x12, 0x83,
 0x91, 0x82, 0x51, 0x31, 0x23, 0xfb, 0xb4, 0x0c, 0x76, 0xad, 0x7c, 0xd9, 0xb4, 0x4b, 0xb2,
 0x67, 0x14, 0x09, 0x9c, 0x7f, 0x0c, 0x18, 0xba, 0x3b, 0xd6, 0x8e, 0x14, 0x2a, 0xe4, 0x1b,
 0x52, 0x9f, 0x2b, 0x7d, 0xe1, 0xfb, 0x6a, 0x33, 0x02, 0xfa, 0xac, 0x5a, 0xf2, 0x3e, 0x88,
 0x7e, 0xae, 0xd1, 0xf3, 0x78, 0xe8, 0x05, 0xd1, 0xe3, 0xdc, 0x21, 0xf6, 0xe1, 0x9a, 0xbd,
 0x17, 0x0e, 0xd9, 0x46, 0x9b, 0x88, 0x03, 0xea, 0xf6, 0x66, 0xbe, 0x0e, 0x1b, 0x50, 0x49,
 0x96, 0x40, 0x97, 0xf1, 0xf1, 0xe4, 0x80, 0xa6, 0x6e, 0xe8, 0x77, 0x34, 0xbf, 0x29, 0x40,
 0x44, 0xc2, 0xff, 0x4e, 0x98, 0xd3, 0x9c, 0xa3, 0x32, 0x2b, 0x76, 0x51, 0x04, 0x09, 0xe7,
 0xa9, 0xd1, 0xa6, 0x32, 0xb1, 0x23, 0x53, 0xe2, 0x47, 0xab, 0xd6, 0xf5, 0x69, 0x5c, 0x3e,
 0x5f, 0xfa, 0xae, 0x45, 0x20, 0xe5, 0xd2, 0x44, 0xff, 0x39, 0x32, 0x6d, 0xfd, 0x27, 0x57,
 0x5c, 0xfd, 0xf0, 0xde, 0xc1, 0xb5, 0x99, 0xe5, 0xf5, 0x1c, 0x77, 0x01, 0x75, 0xc5, 0x6d,
 0x58, 0x92, 0xf2, 0xb2, 0x47, 0x00, 0x01, 0x26, 0x96, 0x7a, 0x30, 0xff, 0xb7, 0xf0, 0xef,
 0x77, 0xc1, 0x8a, 0x5d, 0xdc, 0xc0, 0xd1, 0x29, 0x30, 0x1e, 0x77, 0x38, 0x7a, 0x94, 0xf1,
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 // clang-format off
--- a/keyboards/ploopyco/trackball/config.h
+++ b/keyboards/ploopyco/trackball/config.h
@ -0,0 +1,69 @@
 /* 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/>.
 */

 #pragma once

 #include "config_common.h"

 /* USB Device descriptor parameter */
 #define VENDOR_ID 0x5043
 #define PRODUCT_ID 0x5442
 #define DEVICE_VER   0x0001
 #define MANUFACTURER Ploopyco
 #define PRODUCT      Trackball

 /* key matrix size */
 #define MATRIX_ROWS 1
 #define MATRIX_COLS 5

 /*
 * Keyboard Matrix Assignments
 *
 * Change this to how you wired your keyboard
 * COLS: AVR pins used for columns, left to right
 * ROWS: AVR pins used for rows, top to bottom
 * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
 *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
 *
 */
 #define DIRECT_PINS { { D4, D2, E6, B5, D7 } }

 // These pins are not broken out, and cannot be used normally.
 // They are set as output and pulled high, by default
 #define UNUSED_PINS { D1, D3, B4, B6, B7, D6, C7, F6, F5, F3 }

 /* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
 #define DEBOUNCE 5

 /* define if matrix has ghost (lacks anti-ghosting diodes) */
 //#define MATRIX_HAS_GHOST

 /* disable action features */
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
 #define NO_ACTION_MACRO
 #define NO_ACTION_FUNCTION

 /* Much more so than a keyboard, speed matters for a mouse. So we'll go for as high
   a polling rate as possible. */
 #define USB_POLLING_INTERVAL_MS 1

 /* Bootmagic Lite key configuration */
 #define BOOTMAGIC_LITE_ROW 0
 #define BOOTMAGIC_LITE_COLUMN 3
--- a/keyboards/ploopyco/trackball/info.json
+++ b/keyboards/ploopyco/trackball/info.json
@ -0,0 +1,18 @@
 {
    "keyboard_name": "PloopyCo Trackball",
    "url": "",
    "maintainer": "drashna",
    "width": 8,
    "height": 3,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0, "h":2},
                {"x":1, "y":0.25, "h":1.5},
                {"x":2, "y":0, "h":2},
                {"x":3.5, "y":0, "h":2},
                {"x":4.5, "y":0, "h":2}
            ]
        }
    }
 }
--- a/keyboards/ploopyco/trackball/keymaps/default/keymap.c
+++ b/keyboards/ploopyco/trackball/keymaps/default/keymap.c
@ -0,0 +1,26 @@
 /* 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


 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT( /* Base */
        KC_BTN1, KC_BTN3, KC_BTN2,
          KC_BTN4, KC_BTN5
    ),
 };
--- a/keyboards/ploopyco/trackball/keymaps/default/readme.md
+++ b/keyboards/ploopyco/trackball/keymaps/default/readme.md
@ -0,0 +1 @@
 # The default keymap for Ploopyco Trackball
--- a/keyboards/ploopyco/trackball/keymaps/via/keymap.c
+++ b/keyboards/ploopyco/trackball/keymaps/via/keymap.c
@ -0,0 +1,26 @@
 /* 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


 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT( /* Base */
        KC_BTN1, KC_BTN3, KC_BTN2,
          KC_BTN4, KC_BTN5
    ),
 };
--- a/keyboards/ploopyco/trackball/keymaps/via/rules.mk
+++ b/keyboards/ploopyco/trackball/keymaps/via/rules.mk
@ -0,0 +1 @@
 VIA_ENABLE = yes
--- a/keyboards/ploopyco/trackball/readme.md
+++ b/keyboards/ploopyco/trackball/readme.md
@ -0,0 +1,68 @@
 # Ploopyco Trackball

 ![Ploopyco Trackball](https://i.redd.it/j7z0y83txps31.jpg)

 It's a DIY, QMK Powered Trackball!!!!

 Everything works. However the scroll wheel has some issues and acts very odd.

 * Keyboard Maintainer: [PloopyCo](https://github.com/ploopyco), [Drashna Jael're](https://github.com/drashna/), [Germ](https://github.com/germ/)
 * Hardware Supported: ATMega32u4 8MHz(3.3v)  
 * Hardware Availability: [Store](https://ploopy.co), [GitHub](https://github.com/ploopyco)

 Make example for this keyboard (after setting up your build environment):

    make ploopyco/trackball:default:flash
    
 To jump to the bootloader, hold down "Button 4" (immediate right of the trackball) 

 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

 # Customzing your PloopyCo Trackball

 While the defaults are designed so that it can be plugged in and used right away, there are a number of things that you may want to change.  Such as adding DPI control, or to use the ball to scroll while holding a button.   To allow for this sort of control, there is a callback for both the scroll wheel and the mouse censor. 

 The default behavior for this is:

 ```c
 void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v) {
    mouse_report->h = h;
    mouse_report->v = v;
 }

 void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y) {
    mouse_report->x = x;
    mouse_report->y = y;
 }
 ```

 This should allow you to more heavily customize the behavior. 

 Alternatively, the `process_wheel` and `process_mouse` functions can both be replaced too, to allow for even more functionality.

 Additionally, you can change the DPI/CPI or speed of the trackball by calling `pmw_set_cpi` at any time. And tThe default can be changed by adding a define to the keymap's `config.h` file:

    #define PMW_CPI 1600

 # Programming QMK-DFU onto the PloopyCo Trackball

 If you would rather have DFU on this board, you can use the QMK-DFU bootloader on the device.  To do so, you want to run: 

    make ploopyco/trackball:default:production

 Once you have that, you'll need to [ISP Flash](https://docs.qmk.fm/#/isp_flashing_guide) the chip with the new bootloader hex file created (or the production hex), and set the fuses:


 | Fuse     | Setting          |
 |----------|------------------|
 | Low      | `0xDF`           |
 | High     | `0xD8` or `0x98` |
 | Extended | `0xCB`           |

 Original (Caterina) settings: 

 | Fuse     | Setting          |
 |----------|------------------|
 | Low      | `0xFF`           |
 | High     | `0xD8`           |
 | Extended | `0xFE`           |
--- a/keyboards/ploopyco/trackball/rules.mk
+++ b/keyboards/ploopyco/trackball/rules.mk
@ -0,0 +1,30 @@
 # MCU name
 MCU = atmega32u4

 # Processor frequency
 F_CPU = 8000000

 # Bootloader selection
 BOOTLOADER = caterina

 # Build Options
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
 EXTRAKEY_ENABLE = yes       # Audio control and System control
 CONSOLE_ENABLE = yes         # Console for debug
 COMMAND_ENABLE = no        # Commands for debug and configuration
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 NKRO_ENABLE = no            # USB Nkey Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
 POINTING_DEVICE_ENABLE = yes
 MOUSEKEY_ENABLE = no        # Mouse keys

 QUANTUM_LIB_SRC += analog.c spi_master.c
 SRC += pmw3600.c opt_encoder.c
--- a/keyboards/ploopyco/trackball/trackball.c
+++ 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();
    }
 }
--- a/keyboards/ploopyco/trackball/trackball.h
+++ b/keyboards/ploopyco/trackball/trackball.h
@ -0,0 +1,40 @@
 /* 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/>.
 */

 #pragma once

 #include "quantum.h"
 #include "spi_master.h"
 #include "pmw3600.h"
 #include "analog.h"
 #include "opt_encoder.h"
 #include "pointing_device.h"

 // Sensor defs
 #define OPT_ENC1 F0
 #define OPT_ENC2 F4
 #define OPT_ENC1_MUX 0
 #define OPT_ENC2_MUX 4

 void process_mouse(report_mouse_t* mouse_report);
 void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y);
 void process_wheel(report_mouse_t* mouse_report);
 void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v);

 #define LAYOUT(BL, BM, BR, BF, BB) \
    { {BL, BM, BR, BF, BB}, }