mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-11-25 18:06:34 +06:00
36dd261d06
* Add support for different encoder pinouts for split keyboard * Update documentation for new encoder pinout feature
112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/*
|
|
* Copyright 2018 Jack Humbert <jack.humb@gmail.com>
|
|
*
|
|
* 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 "encoder.h"
|
|
#ifdef SPLIT_KEYBOARD
|
|
#include "split_util.h"
|
|
#endif
|
|
|
|
// for memcpy
|
|
#include <string.h>
|
|
|
|
|
|
#ifndef ENCODER_RESOLUTION
|
|
#define ENCODER_RESOLUTION 4
|
|
#endif
|
|
|
|
#if !defined(ENCODERS_PAD_A) || !defined(ENCODERS_PAD_B)
|
|
#error "No encoder pads defined by ENCODERS_PAD_A and ENCODERS_PAD_B"
|
|
#endif
|
|
|
|
|
|
#define NUMBER_OF_ENCODERS (sizeof(encoders_pad_a)/sizeof(pin_t))
|
|
static pin_t encoders_pad_a[] = ENCODERS_PAD_A;
|
|
static pin_t encoders_pad_b[] = ENCODERS_PAD_B;
|
|
|
|
static int8_t encoder_LUT[] = { 0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0 };
|
|
|
|
static uint8_t encoder_state[NUMBER_OF_ENCODERS] = {0};
|
|
|
|
#ifdef SPLIT_KEYBOARD
|
|
// slave half encoders come over as second set of encoders
|
|
static int8_t encoder_value[NUMBER_OF_ENCODERS * 2] = {0};
|
|
#else
|
|
static int8_t encoder_value[NUMBER_OF_ENCODERS] = {0};
|
|
#endif
|
|
|
|
__attribute__ ((weak))
|
|
void encoder_update_user(int8_t index, bool clockwise) { }
|
|
|
|
__attribute__ ((weak))
|
|
void encoder_update_kb(int8_t index, bool clockwise) {
|
|
encoder_update_user(index, clockwise);
|
|
}
|
|
|
|
void encoder_init(void) {
|
|
#if defined(SPLIT_KEYBOARD) && defined(ENCODERS_PAD_A_RIGHT) && defined(ENCODERS_PAD_B_RIGHT)
|
|
if (!isLeftHand) {
|
|
const pin_t encoders_pad_a_right[] = ENCODERS_PAD_A_RIGHT;
|
|
const pin_t encoders_pad_b_right[] = ENCODERS_PAD_B_RIGHT;
|
|
for (uint8_t i = 0; i < NUMBER_OF_ENCODERS; i++) {
|
|
encoders_pad_a[i] = encoders_pad_a_right[i];
|
|
encoders_pad_b[i] = encoders_pad_b_right[i];
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (int i = 0; i < NUMBER_OF_ENCODERS; i++) {
|
|
setPinInputHigh(encoders_pad_a[i]);
|
|
setPinInputHigh(encoders_pad_b[i]);
|
|
|
|
encoder_state[i] = (readPin(encoders_pad_a[i]) << 0) | (readPin(encoders_pad_b[i]) << 1);
|
|
}
|
|
}
|
|
|
|
void encoder_read(void) {
|
|
for (int i = 0; i < NUMBER_OF_ENCODERS; i++) {
|
|
encoder_state[i] <<= 2;
|
|
encoder_state[i] |= (readPin(encoders_pad_a[i]) << 0) | (readPin(encoders_pad_b[i]) << 1);
|
|
encoder_value[i] += encoder_LUT[encoder_state[i] & 0xF];
|
|
if (encoder_value[i] >= ENCODER_RESOLUTION) {
|
|
encoder_update_kb(i, false);
|
|
}
|
|
if (encoder_value[i] <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise
|
|
encoder_update_kb(i, true);
|
|
}
|
|
encoder_value[i] %= ENCODER_RESOLUTION;
|
|
}
|
|
}
|
|
|
|
#ifdef SPLIT_KEYBOARD
|
|
void encoder_state_raw(uint8_t* slave_state) {
|
|
memcpy(slave_state, encoder_state, sizeof(encoder_state));
|
|
}
|
|
|
|
void encoder_update_raw(uint8_t* slave_state) {
|
|
for (int i = 0; i < NUMBER_OF_ENCODERS; i++) {
|
|
encoder_value[NUMBER_OF_ENCODERS + i] += encoder_LUT[slave_state[i] & 0xF];
|
|
if (encoder_value[NUMBER_OF_ENCODERS + i] >= ENCODER_RESOLUTION) {
|
|
encoder_update_kb(NUMBER_OF_ENCODERS + i, false);
|
|
}
|
|
if (encoder_value[NUMBER_OF_ENCODERS + i] <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise
|
|
encoder_update_kb(NUMBER_OF_ENCODERS + i, true);
|
|
}
|
|
encoder_value[NUMBER_OF_ENCODERS + i] %= ENCODER_RESOLUTION;
|
|
}
|
|
}
|
|
#endif
|