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Diffstat (limited to 'keyboards/choc_taro/matrix.c')
| -rw-r--r-- | keyboards/choc_taro/matrix.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/keyboards/choc_taro/matrix.c b/keyboards/choc_taro/matrix.c deleted file mode 100644 index 02421551da..0000000000 --- a/keyboards/choc_taro/matrix.c +++ /dev/null @@ -1,156 +0,0 @@ -/* -Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar - -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 "matrix.h" -#include "quantum.h" - -#if (MATRIX_COLS <= 8) -# define ROW_SHIFTER ((uint8_t)1) -#elif (MATRIX_COLS <= 16) -# define ROW_SHIFTER ((uint16_t)1) -#elif (MATRIX_COLS <= 32) -# define ROW_SHIFTER ((uint32_t)1) -#endif - -static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; -static const pin_t col_pins[MATRIX_COLS] = 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; x++) { - setPinInputHigh(col_pins[x]); - } -} - -static void init_pins(void) { - unselect_rows(); - unselect_cols(); - - for (uint8_t x = 0; x < MATRIX_COLS; x++) { - setPinInputHigh(col_pins[x]); - } - - for (uint8_t x = 0; x < MATRIX_ROWS; x++) { - setPinInputHigh(row_pins[x]); - } -} - -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]; - - // Clear data in matrix row - current_matrix[current_row] = 0; - - // Select row and wait for row selecton to stabilize - select_row(current_row); - matrix_io_delay(); - - // For each col... - for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { - - // Select the col pin to read (active low) - uint8_t pin_state = readPin(col_pins[col_index]); - - // Populate the matrix row with the state of the col pin - current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index); - } - - // 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 selecton to stabilize - select_col(current_col); - matrix_io_delay(); - - // For each row... - for(uint8_t row_index = 0; row_index < MATRIX_ROWS / 2; row_index++) { - uint8_t tmp = row_index + MATRIX_ROWS / 2; - // Store last value of row prior to reading - matrix_row_t last_row_value = current_matrix[tmp]; - - // Check row pin state - if (readPin(row_pins[row_index]) == 0) { - // Pin LO, set col bit - current_matrix[tmp] |= (ROW_SHIFTER << current_col); - } else { - // Pin HI, clear col bit - current_matrix[tmp] &= ~(ROW_SHIFTER << current_col); - } - - // Determine if the matrix changed state - if ((last_row_value != current_matrix[tmp]) && !(matrix_changed)) { - matrix_changed = true; - } - } - - // Unselect col - unselect_col(current_col); - - 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 / 2; 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; current_col++) { - changed |= read_rows_on_col(current_matrix, current_col); - } - - return changed; -} |