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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 "ploopyco.h"
#include "analog.h"
#include "opt_encoder.h"
// for legacy support
#if defined(OPT_DEBOUNCE) && !defined(PLOOPY_SCROLL_DEBOUNCE)
# define PLOOPY_SCROLL_DEBOUNCE OPT_DEBOUNCE
#endif
#if defined(SCROLL_BUTT_DEBOUNCE) && !defined(PLOOPY_SCROLL_BUTTON_DEBOUNCE)
# define PLOOPY_SCROLL_BUTTON_DEBOUNCE SCROLL_BUTT_DEBOUNCE
#endif
#ifndef PLOOPY_SCROLL_DEBOUNCE
# define PLOOPY_SCROLL_DEBOUNCE 5
#endif
#ifndef PLOOPY_SCROLL_BUTTON_DEBOUNCE
# define PLOOPY_SCROLL_BUTTON_DEBOUNCE 100
#endif
#ifndef PLOOPY_DPI_OPTIONS
# define PLOOPY_DPI_OPTIONS \
{ 600, 900, 1200, 1600, 2400 }
# ifndef PLOOPY_DPI_DEFAULT
# define PLOOPY_DPI_DEFAULT 1
# endif
#endif
#ifndef PLOOPY_DPI_DEFAULT
# define PLOOPY_DPI_DEFAULT 0
#endif
#ifndef PLOOPY_DRAGSCROLL_DIVISOR_H
# define PLOOPY_DRAGSCROLL_DIVISOR_H 8.0
#endif
#ifndef PLOOPY_DRAGSCROLL_DIVISOR_V
# define PLOOPY_DRAGSCROLL_DIVISOR_V 8.0
#endif
#ifndef ENCODER_BUTTON_ROW
# define ENCODER_BUTTON_ROW 0
#endif
#ifndef ENCODER_BUTTON_COL
# define ENCODER_BUTTON_COL 0
#endif
keyboard_config_t keyboard_config;
uint16_t dpi_array[] = PLOOPY_DPI_OPTIONS;
#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
// Trackball State
bool is_scroll_clicked = false;
bool is_drag_scroll = false;
float scroll_accumulated_h = 0;
float scroll_accumulated_v = 0;
#ifdef ENCODER_ENABLE
uint16_t lastScroll = 0; // Previous confirmed wheel event
uint16_t lastMidClick = 0; // Stops scrollwheel from being read if it was pressed
pin_t encoder_pins_a[1] = ENCODERS_PAD_A;
pin_t encoder_pins_b[1] = ENCODERS_PAD_B;
bool debug_encoder = false;
bool encoder_update_kb(uint8_t index, bool clockwise) {
if (!encoder_update_user(index, clockwise)) {
return false;
}
# ifdef MOUSEKEY_ENABLE
tap_code(clockwise ? KC_WH_U : KC_WH_D);
# else
report_mouse_t mouse_report = pointing_device_get_report();
mouse_report.v = clockwise ? 1 : -1;
pointing_device_set_report(mouse_report);
pointing_device_send();
# endif
return true;
}
void encoder_driver_init(void) {
for (uint8_t i = 0; i < ARRAY_SIZE(encoder_pins_a); i++) {
gpio_set_pin_input(encoder_pins_a[i]);
gpio_set_pin_input(encoder_pins_b[i]);
}
opt_encoder_init();
}
void encoder_driver_task(void) {
uint16_t p1 = analogReadPin(encoder_pins_a[0]);
uint16_t p2 = analogReadPin(encoder_pins_b[0]);
if (debug_encoder) dprintf("OPT1: %d, OPT2: %d\n", p1, p2);
int8_t dir = opt_encoder_handler(p1, p2);
// If the mouse wheel was just released, do not scroll.
if (timer_elapsed(lastMidClick) < PLOOPY_SCROLL_BUTTON_DEBOUNCE) {
return;
}
// Limit the number of scrolls per unit time.
if (timer_elapsed(lastScroll) < PLOOPY_SCROLL_DEBOUNCE) {
return;
}
// Don't scroll if the middle button is depressed.
if (is_scroll_clicked) {
# ifndef PLOOPY_IGNORE_SCROLL_CLICK
return;
# endif
}
if (dir == 0) return;
encoder_queue_event(0, dir > 0);
lastScroll = timer_read();
}
#endif
report_mouse_t pointing_device_task_kb(report_mouse_t mouse_report) {
if (is_drag_scroll) {
scroll_accumulated_h += (float)mouse_report.x / PLOOPY_DRAGSCROLL_DIVISOR_H;
scroll_accumulated_v += (float)mouse_report.y / PLOOPY_DRAGSCROLL_DIVISOR_V;
// Assign integer parts of accumulated scroll values to the mouse report
mouse_report.h = (int8_t)scroll_accumulated_h;
#ifdef PLOOPY_DRAGSCROLL_INVERT
mouse_report.v = -(int8_t)scroll_accumulated_v;
#else
mouse_report.v = (int8_t)scroll_accumulated_v;
#endif
// Update accumulated scroll values by subtracting the integer parts
scroll_accumulated_h -= (int8_t)scroll_accumulated_h;
scroll_accumulated_v -= (int8_t)scroll_accumulated_v;
// Clear the X and Y values of the mouse report
mouse_report.x = 0;
mouse_report.y = 0;
mouse_report.x = 0;
mouse_report.y = 0;
}
return pointing_device_task_user(mouse_report);
}
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
#ifdef ENCODER_ENABLE
if ((record->event.key.col == ENCODER_BUTTON_COL) && (record->event.key.row == ENCODER_BUTTON_ROW)) {
lastMidClick = timer_read();
is_scroll_clicked = record->event.pressed;
}
#endif
if (!process_record_user(keycode, record)) {
return false;
}
if (keycode == DPI_CONFIG && record->event.pressed) {
keyboard_config.dpi_config = (keyboard_config.dpi_config + 1) % DPI_OPTION_SIZE;
eeconfig_update_kb(keyboard_config.raw);
pointing_device_set_cpi(dpi_array[keyboard_config.dpi_config]);
}
if (keycode == DRAG_SCROLL) {
#ifdef PLOOPY_DRAGSCROLL_MOMENTARY
is_drag_scroll = record->event.pressed;
#else
if (record->event.pressed) {
is_drag_scroll ^= 1;
}
#endif
}
return true;
}
// Hardware Setup
void keyboard_pre_init_kb(void) {
// debug_enable = true;
// debug_matrix = true;
// debug_mouse = true;
// debug_encoder = true;
/* 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 UNUSABLE_PINS
const pin_t unused_pins[] = UNUSABLE_PINS;
for (uint8_t i = 0; i < ARRAY_SIZE(unused_pins); i++) {
gpio_set_pin_output_push_pull(unused_pins[i]);
gpio_write_pin_low(unused_pins[i]);
}
#endif
// This is the debug LED.
#if defined(DEBUG_LED_PIN)
gpio_set_pin_output_push_pull(DEBUG_LED_PIN);
gpio_write_pin(DEBUG_LED_PIN, debug_enable);
#endif
keyboard_pre_init_user();
}
void pointing_device_init_kb(void) {
keyboard_config.raw = eeconfig_read_kb();
if (keyboard_config.dpi_config > DPI_OPTION_SIZE) {
eeconfig_init_kb();
}
pointing_device_set_cpi(dpi_array[keyboard_config.dpi_config]);
}
void eeconfig_init_kb(void) {
keyboard_config.dpi_config = PLOOPY_DPI_DEFAULT;
eeconfig_update_kb(keyboard_config.raw);
eeconfig_init_user();
}
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