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Diffstat (limited to 'keyboards/nullbitsco/nibble/matrix.c')
| -rw-r--r-- | keyboards/nullbitsco/nibble/matrix.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/keyboards/nullbitsco/nibble/matrix.c b/keyboards/nullbitsco/nibble/matrix.c deleted file mode 100644 index 496c5dbe32..0000000000 --- a/keyboards/nullbitsco/nibble/matrix.c +++ /dev/null @@ -1,95 +0,0 @@ -/* Copyright 2021 Jay Greco - * - * 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 "quantum.h" - -#define COL_SHIFTER ((uint32_t)1) - -// Column pins -static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; -static const uint8_t col_pins[MATRIX_MUX_COLS] = MATRIX_COL_MUX_PINS; - -// Internal functions - -static void init_pins(void) { - // Set cols to outputs, low - for (uint8_t pin = 0; pin < MATRIX_MUX_COLS; pin++) { - setPinOutput(col_pins[pin]); - } - - // Unselect cols - for (uint8_t bit = 0; bit < MATRIX_MUX_COLS; bit++) { - writePinLow(col_pins[bit]); - } - - // Set rows to input, pullup - for (uint8_t pin = 0; pin < MATRIX_ROWS; pin++) { - setPinInputHigh(row_pins[pin]); - } -} - -static void select_col(uint8_t col) -{ - for (uint8_t bit = 0; bit < MATRIX_MUX_COLS; bit++) { - uint8_t state = (col & (0b1 << bit)) >> bit; - writePin(col_pins[bit], state); - } -} - -static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) -{ - bool matrix_changed = false; - select_col(current_col); - wait_us(5); - - // Read each row sequentially - for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) - { - matrix_row_t last_row_value = current_matrix[row_index]; - - if (!readPin(row_pins[row_index])) - { - current_matrix[row_index] |= (COL_SHIFTER << current_col); - } - else - { - current_matrix[row_index] &= ~(COL_SHIFTER << current_col); - } - - if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) - { - matrix_changed = true; - } - } - - return matrix_changed; -} - -// Matrix scan functions - -void matrix_init_custom(void) { - init_pins(); -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - bool changed = false; - - //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); - } - - return (uint8_t)changed; -}
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