[Keyboard] Bartlesplit (#23114)
Co-authored-by: jack <0x6a73@protonmail.com> Co-authored-by: Joel Challis <git@zvecr.com> Co-authored-by: Drashna Jaelre <drashna@live.com>
This commit is contained in:
148
keyboards/minimon/bartlesplit/matrix.c
Normal file
148
keyboards/minimon/bartlesplit/matrix.c
Normal file
@ -0,0 +1,148 @@
|
||||
/*
|
||||
Copyright 2012-2023 Jun Wako <wakojun@gmail.com> Kyrremann <kyrremann@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/>.
|
||||
|
||||
Copied from here: https://github.com/e3w2q/qmk_firmware/blob/762fe3e0a7cbea768245a75520f06ff5a2f00b9f/keyboards/2x3test/matrix.c
|
||||
*/
|
||||
|
||||
/*
|
||||
* scan matrix
|
||||
*/
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include "wait.h"
|
||||
#include "util.h"
|
||||
#include "matrix.h"
|
||||
#include "quantum.h"
|
||||
|
||||
#define ROW_SHIFTER ((uint16_t)1)
|
||||
|
||||
static const pin_t row_pins[] = MATRIX_ROW_PINS;
|
||||
static const pin_t col_pins[] = MATRIX_COL_PINS;
|
||||
|
||||
static void select_row(uint8_t row) {
|
||||
setPinOutput(row_pins[row]);
|
||||
writePinLow(row_pins[row]);
|
||||
}
|
||||
|
||||
static void unselect_row(uint8_t row) {
|
||||
setPinInputHigh(row_pins[row]);
|
||||
}
|
||||
|
||||
static void unselect_rows(void) {
|
||||
for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
|
||||
setPinInputHigh(row_pins[x]);
|
||||
}
|
||||
}
|
||||
|
||||
static void select_col(uint8_t col) {
|
||||
setPinOutput(col_pins[col]);
|
||||
writePinLow(col_pins[col]);
|
||||
}
|
||||
|
||||
static void unselect_col(uint8_t col) {
|
||||
setPinInputHigh(col_pins[col]);
|
||||
}
|
||||
|
||||
static void unselect_cols(void) {
|
||||
for (uint8_t x = 0; x < MATRIX_COLS/2; x++) {
|
||||
setPinInputHigh(col_pins[x*2]);
|
||||
}
|
||||
}
|
||||
|
||||
static void init_pins(void) {
|
||||
unselect_cols();
|
||||
unselect_rows();
|
||||
}
|
||||
|
||||
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
|
||||
// Store last value of row prior to reading
|
||||
matrix_row_t last_row_value = current_matrix[current_row];
|
||||
|
||||
// Select row and wait for row selection to stabilize
|
||||
select_row(current_row);
|
||||
wait_us(30);
|
||||
|
||||
// For each col...
|
||||
for (uint8_t col_index = 0; col_index < MATRIX_COLS / 2; col_index++) {
|
||||
uint16_t column_index_bitmask = ROW_SHIFTER << ((col_index * 2) + 1);
|
||||
// Check row pin state
|
||||
if (readPin(col_pins[col_index*2])) {
|
||||
// Pin HI, clear col bit
|
||||
current_matrix[current_row] &= ~column_index_bitmask;
|
||||
} else {
|
||||
// Pin LO, set col bit
|
||||
current_matrix[current_row] |= column_index_bitmask;
|
||||
}
|
||||
}
|
||||
|
||||
// Unselect row
|
||||
unselect_row(current_row);
|
||||
|
||||
return (last_row_value != current_matrix[current_row]);
|
||||
}
|
||||
|
||||
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 selection to stabilize
|
||||
select_col(current_col*2);
|
||||
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];
|
||||
|
||||
uint16_t column_index_bitmask = ROW_SHIFTER << (current_col * 2);
|
||||
// Check row pin state
|
||||
if (readPin(row_pins[row_index])) {
|
||||
// Pin HI, clear col bit
|
||||
current_matrix[row_index] &= ~column_index_bitmask;
|
||||
} else {
|
||||
// Pin LO, set col bit
|
||||
current_matrix[row_index] |= column_index_bitmask;
|
||||
}
|
||||
|
||||
// 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*2);
|
||||
|
||||
return matrix_changed;
|
||||
}
|
||||
|
||||
|
||||
void matrix_init_custom(void) {
|
||||
// initialize key pins
|
||||
init_pins();
|
||||
}
|
||||
|
||||
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
|
||||
|
||||
bool changed = false;
|
||||
|
||||
// Set row, read cols
|
||||
for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
|
||||
changed |= read_cols_on_row(current_matrix, current_row);
|
||||
}
|
||||
// Set col, read rows
|
||||
for (uint8_t current_col = 0; current_col < MATRIX_COLS/2; current_col++) {
|
||||
changed |= read_rows_on_col(current_matrix, current_col);
|
||||
}
|
||||
|
||||
return changed;
|
||||
}
|
Reference in New Issue
Block a user