mirror of
https://github.com/qmk/qmk_firmware
synced 2024-11-17 09:24:48 +00:00
63 lines
2 KiB
C
63 lines
2 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2018 Charlie Waters
|
||
|
|
*
|
||
|
|
* 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 <string.h>
|
||
|
|
#include <hal.h>
|
||
|
|
#include "timer.h"
|
||
|
|
#include "wait.h"
|
||
|
|
#include "print.h"
|
||
|
|
#include "matrix.h"
|
||
|
|
#include "annepro2.h"
|
||
|
|
|
||
|
|
pin_t row_list[MATRIX_ROWS] = MATRIX_ROW_PINS;
|
||
|
|
pin_t col_list[MATRIX_COLS] = MATRIX_COL_PINS;
|
||
|
|
|
||
|
|
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
|
||
|
|
bool matrix_has_changed = false;
|
||
|
|
// cache of input ports for columns
|
||
|
|
static uint16_t port_cache[4];
|
||
|
|
// scan each row
|
||
|
|
for (int row = 0; row < MATRIX_ROWS; row++) {
|
||
|
|
palClearLine(row_list[row]);
|
||
|
|
__NOP();
|
||
|
|
__NOP();
|
||
|
|
__NOP();
|
||
|
|
__NOP();
|
||
|
|
// read i/o ports
|
||
|
|
port_cache[0] = palReadPort(IOPORTA);
|
||
|
|
port_cache[1] = palReadPort(IOPORTB);
|
||
|
|
port_cache[2] = palReadPort(IOPORTC);
|
||
|
|
port_cache[3] = palReadPort(IOPORTD);
|
||
|
|
palSetLine(row_list[row]);
|
||
|
|
|
||
|
|
// get columns from ports
|
||
|
|
matrix_row_t data = 0;
|
||
|
|
for (int col = 0; col < MATRIX_COLS; ++col) {
|
||
|
|
pin_t line = col_list[col];
|
||
|
|
uint16_t port = port_cache[HT32_PAL_IDX(PAL_PORT(line))];
|
||
|
|
data |= (((port & (1 << PAL_PAD(line))) ? 0 : 1) << col);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (current_matrix[row] != data) {
|
||
|
|
current_matrix[row] = data;
|
||
|
|
matrix_has_changed = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return matrix_has_changed;
|
||
|
|
}
|