mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-05 01:15:19 +00:00
189 lines
5.4 KiB
C
189 lines
5.4 KiB
C
/*
|
|
* Copyright 2018-2023 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 "gpio.h"
|
|
#include "hal_pal.h"
|
|
#include "hal_pal_lld.h"
|
|
#include "quantum.h"
|
|
#include <math.h>
|
|
|
|
// STM32-specific watchdog config calculations
|
|
// timeout = 31.25us * PR * (RL + 1)
|
|
#define _STM32_IWDG_LSI(us) ((us) / 31.25)
|
|
#define STM32_IWDG_PR_US(us) (uint8_t)(log(_STM32_IWDG_LSI(us)) / log(2) - 11)
|
|
#define STM32_IWDG_PR_MS(s) STM32_IWDG_PR_US(s * 1000.0)
|
|
#define STM32_IWDG_PR_S(s) STM32_IWDG_PR_US(s * 1000000.0)
|
|
#define _STM32_IWDG_SCALAR(us) (2 << ((uint8_t)STM32_IWDG_PR_US(us) + 1))
|
|
#define STM32_IWDG_RL_US(us) (uint64_t)(_STM32_IWDG_LSI(us)) / _STM32_IWDG_SCALAR(us)
|
|
#define STM32_IWDG_RL_MS(s) STM32_IWDG_RL_US(s * 1000.0)
|
|
#define STM32_IWDG_RL_S(s) STM32_IWDG_RL_US(s * 1000000.0)
|
|
|
|
#if !defined(PLANCK_ENCODER_RESOLUTION)
|
|
# define PLANCK_ENCODER_RESOLUTION 4
|
|
#endif
|
|
|
|
#if !defined(PLANCK_WATCHDOG_TIMEOUT)
|
|
# define PLANCK_WATCHDOG_TIMEOUT 1.0
|
|
#endif
|
|
|
|
#ifdef ENCODER_MAP_ENABLE
|
|
#error "The encoder map feature is not currently supported by the Planck's encoder matrix"
|
|
#endif
|
|
|
|
/* matrix state(1:on, 0:off) */
|
|
static pin_t matrix_row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
|
|
static pin_t matrix_col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
|
|
|
|
static matrix_row_t matrix_inverted[MATRIX_COLS];
|
|
|
|
#ifdef ENCODER_ENABLE
|
|
int8_t encoder_LUT[] = {0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0};
|
|
uint8_t encoder_state[8] = {0};
|
|
int8_t encoder_pulses[8] = {0};
|
|
uint8_t encoder_value[8] = {0};
|
|
#endif
|
|
|
|
void matrix_init_custom(void) {
|
|
// actual matrix setup - cols
|
|
for (int i = 0; i < MATRIX_COLS; i++) {
|
|
setPinOutput(matrix_col_pins[i]);
|
|
writePinLow(matrix_col_pins[i]);
|
|
}
|
|
|
|
// rows
|
|
for (int i = 0; i < MATRIX_ROWS; i++) {
|
|
setPinInputLow(matrix_row_pins[i]);
|
|
}
|
|
|
|
// encoder A & B setup
|
|
setPinInputLow(B12);
|
|
setPinInputLow(B13);
|
|
|
|
#ifndef PLANCK_WATCHDOG_DISABLE
|
|
wdgInit();
|
|
|
|
static WDGConfig wdgcfg;
|
|
wdgcfg.pr = STM32_IWDG_PR_S(PLANCK_WATCHDOG_TIMEOUT);
|
|
wdgcfg.rlr = STM32_IWDG_RL_S(PLANCK_WATCHDOG_TIMEOUT);
|
|
wdgcfg.winr = STM32_IWDG_WIN_DISABLED;
|
|
wdgStart(&WDGD1, &wdgcfg);
|
|
#endif
|
|
}
|
|
|
|
#ifdef ENCODER_ENABLE
|
|
bool encoder_update(uint8_t index, uint8_t state) {
|
|
bool changed = false;
|
|
uint8_t i = index;
|
|
|
|
encoder_pulses[i] += encoder_LUT[state & 0xF];
|
|
|
|
if (encoder_pulses[i] >= PLANCK_ENCODER_RESOLUTION) {
|
|
encoder_value[index]++;
|
|
changed = true;
|
|
encoder_update_kb(index, false);
|
|
}
|
|
if (encoder_pulses[i] <= -PLANCK_ENCODER_RESOLUTION) {
|
|
encoder_value[index]--;
|
|
changed = true;
|
|
encoder_update_kb(index, true);
|
|
}
|
|
encoder_pulses[i] %= PLANCK_ENCODER_RESOLUTION;
|
|
#ifdef ENCODER_DEFAULT_POS
|
|
encoder_pulses[i] = 0;
|
|
#endif
|
|
return changed;
|
|
}
|
|
#endif
|
|
|
|
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
|
|
#ifndef PLANCK_WATCHDOG_DISABLE
|
|
// reset watchdog
|
|
wdgReset(&WDGD1);
|
|
#endif
|
|
|
|
bool changed = false;
|
|
|
|
// actual matrix
|
|
for (int col = 0; col < MATRIX_COLS; col++) {
|
|
matrix_row_t data = 0;
|
|
|
|
// strobe col
|
|
writePinHigh(matrix_col_pins[col]);
|
|
|
|
// need wait to settle pin state
|
|
wait_us(20);
|
|
|
|
// read row data
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
|
data |= (readPin(matrix_row_pins[row]) << row);
|
|
}
|
|
|
|
// unstrobe col
|
|
writePinLow(matrix_col_pins[col]);
|
|
|
|
if (matrix_inverted[col] != data) {
|
|
matrix_inverted[col] = data;
|
|
}
|
|
}
|
|
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
|
matrix_row_t old = current_matrix[row];
|
|
current_matrix[row] = 0;
|
|
for (int col = 0; col < MATRIX_COLS; col++) {
|
|
current_matrix[row] |= ((matrix_inverted[col] & (1 << row) ? 1 : 0) << col);
|
|
}
|
|
changed |= old != current_matrix[row];
|
|
}
|
|
|
|
#ifdef ENCODER_ENABLE
|
|
// encoder-matrix functionality
|
|
|
|
// set up C/rows for encoder read
|
|
for (int i = 0; i < MATRIX_ROWS; i++) {
|
|
setPinOutput(matrix_row_pins[i]);
|
|
writePinHigh(matrix_row_pins[i]);
|
|
}
|
|
|
|
// set up A & B for reading
|
|
setPinInputHigh(B12);
|
|
setPinInputHigh(B13);
|
|
|
|
for (int i = 0; i < MATRIX_ROWS; i++) {
|
|
writePinLow(matrix_row_pins[i]);
|
|
wait_us(10);
|
|
uint8_t new_status = (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1);
|
|
if ((encoder_state[i] & 0x3) != new_status) {
|
|
encoder_state[i] <<= 2;
|
|
encoder_state[i] |= new_status;
|
|
encoder_update(i, encoder_state[i]);
|
|
}
|
|
writePinHigh(matrix_row_pins[i]);
|
|
}
|
|
|
|
// revert A & B to matrix state
|
|
setPinInputLow(B12);
|
|
setPinInputLow(B13);
|
|
|
|
// revert C/rows to matrix state
|
|
for (int i = 0; i < MATRIX_ROWS; i++) {
|
|
setPinInputLow(matrix_row_pins[i]);
|
|
}
|
|
#endif
|
|
|
|
return changed;
|
|
}
|