qmk_firmware/keyboards/preonic/rev3_drop/matrix.c
Sergey Vlasov 587f7508fc
preonic/rev3_drop: Fix old custom matrix code (#14857)
The old custom matrix code for Preonic rev3 was relying on the
`matrix_col_t` type, because the code actually reads the row pins and
assembles the state for whole columns, and then transposes the matrix in
the custom debouncing code.  Restore that type (which is no longer
defined by the core QMK code) to make the custom matrix code work
properly (when `matrix_row_t` was used instead of `matrix_col_t`, the
state of two electrical rows was lost, and those electrical rows
corresponded to the bottom physical row, which did not work).
2021-10-18 11:09:33 +11:00

170 lines
5.4 KiB
C

/*
* 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 <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "hal.h"
#include "timer.h"
#include "wait.h"
#include "debug.h"
#include "matrix.h"
typedef uint16_t matrix_col_t;
/*
* col: { B11, B10, B2, B1, A7, B0 }
* row: { A10, A9, A8, B15, C13, C14, C15, A2 }
*/
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_col_t matrix_debouncing[MATRIX_COLS];
static bool debouncing = false;
static uint16_t debouncing_time = 0;
__attribute__((weak)) void matrix_init_user(void) {}
__attribute__((weak)) void matrix_scan_user(void) {}
__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); }
__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); }
void matrix_init(void) {
dprintf("matrix init\n");
// debug_matrix = true;
// actual matrix setup
palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 9, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 8, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOB, 15, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOC, 13, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOC, 14, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOC, 15, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLDOWN);
memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_col_t));
matrix_init_quantum();
}
uint8_t matrix_scan(void) {
// actual matrix
for (int col = 0; col < MATRIX_COLS; col++) {
matrix_col_t data = 0;
// strobe col { B11, B10, B2, B1, A7, B0 }
switch (col) {
case 0:
palSetPad(GPIOB, 11);
break;
case 1:
palSetPad(GPIOB, 10);
break;
case 2:
palSetPad(GPIOB, 2);
break;
case 3:
palSetPad(GPIOB, 1);
break;
case 4:
palSetPad(GPIOA, 7);
break;
case 5:
palSetPad(GPIOB, 0);
break;
}
// need wait to settle pin state
wait_us(20);
// read row data { A10, A9, A8, B15, C13, C14, C15, A2 }
data = ((palReadPad(GPIOA, 10) << 0) | (palReadPad(GPIOA, 9) << 1) | (palReadPad(GPIOA, 8) << 2) | (palReadPad(GPIOB, 15) << 3) | (palReadPad(GPIOC, 13) << 4) | (palReadPad(GPIOC, 14) << 5) | (palReadPad(GPIOC, 15) << 6) | (palReadPad(GPIOA, 2) << 7) | (palReadPad(GPIOA, 3) << 8) | (palReadPad(GPIOA, 6) << 9));
// unstrobe col { B11, B10, B2, B1, A7, B0 }
switch (col) {
case 0:
palClearPad(GPIOB, 11);
break;
case 1:
palClearPad(GPIOB, 10);
break;
case 2:
palClearPad(GPIOB, 2);
break;
case 3:
palClearPad(GPIOB, 1);
break;
case 4:
palClearPad(GPIOA, 7);
break;
case 5:
palClearPad(GPIOB, 0);
break;
}
if (matrix_debouncing[col] != data) {
matrix_debouncing[col] = data;
debouncing = true;
debouncing_time = timer_read();
}
}
if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
for (int row = 0; row < MATRIX_ROWS; row++) {
matrix[row] = 0;
for (int col = 0; col < MATRIX_COLS; col++) {
matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col);
}
}
debouncing = false;
}
matrix_scan_quantum();
return 1;
}
bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & (1 << col)); }
matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; }
void matrix_print(void) {
dprintf("\nr/c 01234567\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
dprintf("%X0: ", row);
matrix_row_t data = matrix_get_row(row);
for (int col = 0; col < MATRIX_COLS; col++) {
if (data & (1 << col))
dprintf("1");
else
dprintf("0");
}
dprintf("\n");
}
}