mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-27 11:38:58 +06:00
389 lines
12 KiB
C
389 lines
12 KiB
C
/*
|
|
Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
|
|
Copyright 2019 Evy Dekkers
|
|
|
|
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 <stdint.h>
|
|
#include <stdbool.h>
|
|
#include "wait.h"
|
|
#include "util.h"
|
|
#include "matrix.h"
|
|
#include "debounce.h"
|
|
#include "quantum.h"
|
|
|
|
#ifdef DIRECT_PINS
|
|
static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
|
|
#elif (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
|
|
static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
|
|
//static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
|
|
#endif
|
|
|
|
// matrix code
|
|
|
|
#ifdef DIRECT_PINS
|
|
|
|
static void init_pins(void) {
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
|
for (int col = 0; col < MATRIX_COLS; col++) {
|
|
pin_t pin = direct_pins[row][col];
|
|
if (pin != NO_PIN) {
|
|
setPinInputHigh(pin);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
|
|
matrix_row_t last_row_value = current_matrix[current_row];
|
|
current_matrix[current_row] = 0;
|
|
|
|
for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
|
|
pin_t pin = direct_pins[current_row][col_index];
|
|
if (pin != NO_PIN) {
|
|
current_matrix[current_row] |= readPin(pin) ? 0 : (MATRIX_ROW_SHIFTER << col_index);
|
|
}
|
|
}
|
|
|
|
return (last_row_value != current_matrix[current_row]);
|
|
}
|
|
|
|
#elif (DIODE_DIRECTION == ROW2COL)
|
|
|
|
/* Cols 0 - 16
|
|
* These columns use two 74HC138 3 to 8 bit demultiplexer. B0, F1 is the enable pin, must be set high (1) to use it.
|
|
*
|
|
* col / pin: PB5 PB7 PF0 PB0 PF1 PE6
|
|
* 0: 0 ── 0 ── 0 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 1: 0 ── 0 ── 1 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 2: 0 ── 1 ── 0 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 3: 0 ── 1 ── 1 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 4: 1 ── 0 ── 0 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 5: 1 ── 0 ── 1 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 6: 1 ── 1 ── 0 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 7: 1 ── 1 ── 1 1 ── 0 0
|
|
* ────────────────────────────────────────────
|
|
* 8: 0 ── 0 ── 0 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
* 9: 0 ── 0 ── 1 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*10: 0 ── 1 ── 0 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*11: 0 ── 1 ── 1 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*12: 1 ── 0 ── 0 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*13: 1 ── 0 ── 1 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*14: 1 ── 1 ── 1 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*15: 1 ── 1 ── 0 0 ── 1 0
|
|
* ────────────────────────────────────────────
|
|
*16: 0 ── 0 ── 0 0 ── 0 1
|
|
*
|
|
*/
|
|
static void select_col(uint8_t col) {
|
|
switch (col) {
|
|
case 0:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 1:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 2:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 3:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 4:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 5:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 6:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 7:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(B0);
|
|
break;
|
|
case 8:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 9:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 10:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 11:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 12:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 13:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 14:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 15:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinHigh(F1);
|
|
break;
|
|
case 16:
|
|
writePinLow(E6);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void unselect_col(uint8_t col) {
|
|
switch (col) {
|
|
case 0:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 1:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 2:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 3:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 4:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 5:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 6:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 7:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinLow(B0);
|
|
break;
|
|
case 8:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 9:
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 10:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 11:
|
|
writePinHigh(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 12:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 13:
|
|
writePinLow(B5);
|
|
writePinHigh(B7);
|
|
writePinLow(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 14:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinLow(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 15:
|
|
writePinLow(B5);
|
|
writePinLow(B7);
|
|
writePinHigh(F0);
|
|
writePinLow(F1);
|
|
break;
|
|
case 16:
|
|
writePinHigh(E6);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void unselect_cols(void) {
|
|
//Native
|
|
writePinHigh(E6);
|
|
|
|
//Demultiplexer
|
|
writePinLow(B0);
|
|
writePinLow(F1);
|
|
writePinHigh(B5);
|
|
writePinHigh(B7);
|
|
writePinHigh(F0);
|
|
}
|
|
|
|
static void init_pins(void) {
|
|
unselect_cols();
|
|
for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
|
|
setPinInputHigh(row_pins[x]);
|
|
}
|
|
setPinOutput(B5);
|
|
setPinOutput(B7);
|
|
setPinOutput(F0);
|
|
setPinOutput(B0);
|
|
setPinOutput(F1);
|
|
setPinOutput(E6);
|
|
}
|
|
|
|
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
|
|
bool matrix_changed = false;
|
|
|
|
// Select col and wait for col selecton to stabilize
|
|
select_col(current_col);
|
|
wait_us(30);
|
|
|
|
// For each row...
|
|
for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
|
|
// Store last value of row prior to reading
|
|
matrix_row_t last_row_value = current_matrix[row_index];
|
|
|
|
// Check row pin state
|
|
if (readPin(row_pins[row_index]) == 0) {
|
|
// Pin LO, set col bit
|
|
current_matrix[row_index] |= (MATRIX_ROW_SHIFTER << current_col);
|
|
} else {
|
|
// Pin HI, clear col bit
|
|
current_matrix[row_index] &= ~(MATRIX_ROW_SHIFTER << current_col);
|
|
}
|
|
|
|
// Determine if the matrix changed state
|
|
if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) {
|
|
matrix_changed = true;
|
|
}
|
|
}
|
|
|
|
// Unselect col
|
|
unselect_col(current_col);
|
|
|
|
return matrix_changed;
|
|
}
|
|
|
|
#endif
|
|
|
|
void matrix_init_custom(void) {
|
|
// initialize key pins
|
|
init_pins();
|
|
}
|
|
|
|
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
|
|
bool changed = false;
|
|
|
|
#if defined(DIRECT_PINS) || (DIODE_DIRECTION == ROW2COL)
|
|
// Set col, read rows
|
|
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
|
|
changed |= read_rows_on_col(current_matrix, current_col);
|
|
}
|
|
#endif
|
|
|
|
return changed;
|
|
}
|