You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
251 lines
8.5 KiB
251 lines
8.5 KiB
/*
|
|
* 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_MAP_KEY_DELAY
|
|
# define ENCODER_MAP_KEY_DELAY 2
|
|
#endif
|
|
|
|
#if !defined(ENCODER_RESOLUTIONS) && !defined(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
|
|
|
|
extern volatile bool isLeftHand;
|
|
|
|
static pin_t encoders_pad_a[NUM_ENCODERS_MAX_PER_SIDE] = ENCODERS_PAD_A;
|
|
static pin_t encoders_pad_b[NUM_ENCODERS_MAX_PER_SIDE] = ENCODERS_PAD_B;
|
|
|
|
#ifdef ENCODER_RESOLUTIONS
|
|
static uint8_t encoder_resolutions[NUM_ENCODERS] = ENCODER_RESOLUTIONS;
|
|
#endif
|
|
|
|
#ifndef ENCODER_DIRECTION_FLIP
|
|
# define ENCODER_CLOCKWISE true
|
|
# define ENCODER_COUNTER_CLOCKWISE false
|
|
#else
|
|
# define ENCODER_CLOCKWISE false
|
|
# define ENCODER_COUNTER_CLOCKWISE true
|
|
#endif
|
|
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[NUM_ENCODERS] = {0};
|
|
static int8_t encoder_pulses[NUM_ENCODERS] = {0};
|
|
|
|
// encoder counts
|
|
static uint8_t thisCount;
|
|
#ifdef SPLIT_KEYBOARD
|
|
// encoder offsets for each hand
|
|
static uint8_t thisHand, thatHand;
|
|
// encoder counts for each hand
|
|
static uint8_t thatCount;
|
|
#endif
|
|
|
|
static uint8_t encoder_value[NUM_ENCODERS] = {0};
|
|
|
|
__attribute__((weak)) void encoder_wait_pullup_charge(void) {
|
|
wait_us(100);
|
|
}
|
|
|
|
__attribute__((weak)) bool encoder_update_user(uint8_t index, bool clockwise) {
|
|
return true;
|
|
}
|
|
|
|
__attribute__((weak)) bool encoder_update_kb(uint8_t index, bool clockwise) {
|
|
return encoder_update_user(index, clockwise);
|
|
}
|
|
|
|
__attribute__((weak)) uint8_t encoder_read_state(uint8_t index) {
|
|
return (readPin(encoders_pad_a[index]) << 0) | (readPin(encoders_pad_b[index]) << 1);
|
|
}
|
|
|
|
__attribute__((weak)) void encoder_init_state(uint8_t index) {
|
|
setPinInputHigh(encoders_pad_a[index]);
|
|
setPinInputHigh(encoders_pad_b[index]);
|
|
}
|
|
|
|
void encoder_init(void) {
|
|
#ifdef SPLIT_KEYBOARD
|
|
thisHand = isLeftHand ? 0 : NUM_ENCODERS_LEFT;
|
|
thatHand = NUM_ENCODERS_LEFT - thisHand;
|
|
thisCount = isLeftHand ? NUM_ENCODERS_LEFT : NUM_ENCODERS_RIGHT;
|
|
thatCount = isLeftHand ? NUM_ENCODERS_RIGHT : NUM_ENCODERS_LEFT;
|
|
#else // SPLIT_KEYBOARD
|
|
thisCount = NUM_ENCODERS;
|
|
#endif
|
|
|
|
#ifdef ENCODER_TESTS
|
|
// Annoying that we have to clear out values during initialisation here, but
|
|
// because all the arrays are static locals, rerunning tests in the same
|
|
// executable doesn't reset any of these. Kinda crappy having test-only code
|
|
// here, but it's the simplest solution.
|
|
memset(encoder_value, 0, sizeof(encoder_value));
|
|
memset(encoder_state, 0, sizeof(encoder_state));
|
|
memset(encoder_pulses, 0, sizeof(encoder_pulses));
|
|
static const pin_t encoders_pad_a_left[] = ENCODERS_PAD_A;
|
|
static const pin_t encoders_pad_b_left[] = ENCODERS_PAD_B;
|
|
for (uint8_t i = 0; i < thisCount; i++) {
|
|
encoders_pad_a[i] = encoders_pad_a_left[i];
|
|
encoders_pad_b[i] = encoders_pad_b_left[i];
|
|
}
|
|
#endif
|
|
|
|
#if defined(SPLIT_KEYBOARD) && defined(ENCODERS_PAD_A_RIGHT) && defined(ENCODERS_PAD_B_RIGHT)
|
|
// Re-initialise the pads if it's the right-hand side
|
|
if (!isLeftHand) {
|
|
static const pin_t encoders_pad_a_right[] = ENCODERS_PAD_A_RIGHT;
|
|
static const pin_t encoders_pad_b_right[] = ENCODERS_PAD_B_RIGHT;
|
|
for (uint8_t i = 0; i < thisCount; i++) {
|
|
encoders_pad_a[i] = encoders_pad_a_right[i];
|
|
encoders_pad_b[i] = encoders_pad_b_right[i];
|
|
}
|
|
}
|
|
#endif // defined(SPLIT_KEYBOARD) && defined(ENCODERS_PAD_A_RIGHT) && defined(ENCODERS_PAD_B_RIGHT)
|
|
|
|
// Encoder resolutions is handled purely master-side, so concatenate the two arrays
|
|
#if defined(SPLIT_KEYBOARD) && defined(ENCODER_RESOLUTIONS)
|
|
# if defined(ENCODER_RESOLUTIONS_RIGHT)
|
|
static const uint8_t encoder_resolutions_right[NUM_ENCODERS_RIGHT] = ENCODER_RESOLUTIONS_RIGHT;
|
|
# else // defined(ENCODER_RESOLUTIONS_RIGHT)
|
|
static const uint8_t encoder_resolutions_right[NUM_ENCODERS_RIGHT] = ENCODER_RESOLUTIONS;
|
|
# endif // defined(ENCODER_RESOLUTIONS_RIGHT)
|
|
for (uint8_t i = 0; i < NUM_ENCODERS_RIGHT; i++) {
|
|
encoder_resolutions[NUM_ENCODERS_LEFT + i] = encoder_resolutions_right[i];
|
|
}
|
|
#endif // defined(SPLIT_KEYBOARD) && defined(ENCODER_RESOLUTIONS)
|
|
|
|
for (uint8_t i = 0; i < thisCount; i++) {
|
|
encoder_init_state(i);
|
|
}
|
|
encoder_wait_pullup_charge();
|
|
for (uint8_t i = 0; i < thisCount; i++) {
|
|
encoder_state[i] = encoder_read_state(i);
|
|
}
|
|
}
|
|
|
|
#ifdef ENCODER_MAP_ENABLE
|
|
static void encoder_exec_mapping(uint8_t index, bool clockwise) {
|
|
// The delays below cater for Windows and its wonderful requirements.
|
|
action_exec(clockwise ? ENCODER_CW_EVENT(index, true) : ENCODER_CCW_EVENT(index, true));
|
|
wait_ms(ENCODER_MAP_KEY_DELAY);
|
|
action_exec(clockwise ? ENCODER_CW_EVENT(index, false) : ENCODER_CCW_EVENT(index, false));
|
|
wait_ms(ENCODER_MAP_KEY_DELAY);
|
|
}
|
|
#endif // ENCODER_MAP_ENABLE
|
|
|
|
static bool encoder_update(uint8_t index, uint8_t state) {
|
|
bool changed = false;
|
|
uint8_t i = index;
|
|
|
|
#ifdef ENCODER_RESOLUTIONS
|
|
const uint8_t resolution = encoder_resolutions[i];
|
|
#else
|
|
const uint8_t resolution = ENCODER_RESOLUTION;
|
|
#endif
|
|
|
|
#ifdef SPLIT_KEYBOARD
|
|
index += thisHand;
|
|
#endif
|
|
encoder_pulses[i] += encoder_LUT[state & 0xF];
|
|
if (encoder_pulses[i] >= resolution) {
|
|
encoder_value[index]++;
|
|
changed = true;
|
|
#ifdef ENCODER_MAP_ENABLE
|
|
encoder_exec_mapping(index, ENCODER_COUNTER_CLOCKWISE);
|
|
#else // ENCODER_MAP_ENABLE
|
|
encoder_update_kb(index, ENCODER_COUNTER_CLOCKWISE);
|
|
#endif // ENCODER_MAP_ENABLE
|
|
}
|
|
if (encoder_pulses[i] <= -resolution) { // direction is arbitrary here, but this clockwise
|
|
encoder_value[index]--;
|
|
changed = true;
|
|
#ifdef ENCODER_MAP_ENABLE
|
|
encoder_exec_mapping(index, ENCODER_CLOCKWISE);
|
|
#else // ENCODER_MAP_ENABLE
|
|
encoder_update_kb(index, ENCODER_CLOCKWISE);
|
|
#endif // ENCODER_MAP_ENABLE
|
|
}
|
|
encoder_pulses[i] %= resolution;
|
|
#ifdef ENCODER_DEFAULT_POS
|
|
if ((state & 0x3) == ENCODER_DEFAULT_POS) {
|
|
encoder_pulses[i] = 0;
|
|
}
|
|
#endif
|
|
return changed;
|
|
}
|
|
|
|
bool encoder_read(void) {
|
|
bool changed = false;
|
|
for (uint8_t i = 0; i < thisCount; i++) {
|
|
uint8_t new_status = encoder_read_state(i);
|
|
if ((encoder_state[i] & 0x3) != new_status) {
|
|
encoder_state[i] <<= 2;
|
|
encoder_state[i] |= new_status;
|
|
changed |= encoder_update(i, encoder_state[i]);
|
|
}
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
#ifdef SPLIT_KEYBOARD
|
|
void last_encoder_activity_trigger(void);
|
|
|
|
void encoder_state_raw(uint8_t *slave_state) {
|
|
memcpy(slave_state, &encoder_value[thisHand], sizeof(uint8_t) * thisCount);
|
|
}
|
|
|
|
void encoder_update_raw(uint8_t *slave_state) {
|
|
bool changed = false;
|
|
for (uint8_t i = 0; i < thatCount; i++) { // Note inverted logic -- we want the opposite side
|
|
const uint8_t index = i + thatHand;
|
|
int8_t delta = slave_state[i] - encoder_value[index];
|
|
while (delta > 0) {
|
|
delta--;
|
|
encoder_value[index]++;
|
|
changed = true;
|
|
# ifdef ENCODER_MAP_ENABLE
|
|
encoder_exec_mapping(index, ENCODER_COUNTER_CLOCKWISE);
|
|
# else // ENCODER_MAP_ENABLE
|
|
encoder_update_kb(index, ENCODER_COUNTER_CLOCKWISE);
|
|
# endif // ENCODER_MAP_ENABLE
|
|
}
|
|
while (delta < 0) {
|
|
delta++;
|
|
encoder_value[index]--;
|
|
changed = true;
|
|
# ifdef ENCODER_MAP_ENABLE
|
|
encoder_exec_mapping(index, ENCODER_CLOCKWISE);
|
|
# else // ENCODER_MAP_ENABLE
|
|
encoder_update_kb(index, ENCODER_CLOCKWISE);
|
|
# endif // ENCODER_MAP_ENABLE
|
|
}
|
|
}
|
|
|
|
// Update the last encoder input time -- handled external to encoder_read() when we're running a split
|
|
if (changed) last_encoder_activity_trigger();
|
|
}
|
|
#endif
|