From 076c8cc45fe9af215dc5211ca0e8a731718864ae Mon Sep 17 00:00:00 2001 From: rate Date: Tue, 10 Aug 2021 14:23:25 +0900 Subject: [Keyboard] Added pistachio_pro (#13466) * Added pistachio_pro * Apply suggestions from code review * Apply suggestions from code review --- keyboards/pistachio_pro/matrix.c | 151 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 keyboards/pistachio_pro/matrix.c (limited to 'keyboards/pistachio_pro/matrix.c') diff --git a/keyboards/pistachio_pro/matrix.c b/keyboards/pistachio_pro/matrix.c new file mode 100644 index 0000000000..6cbfb6dfea --- /dev/null +++ b/keyboards/pistachio_pro/matrix.c @@ -0,0 +1,151 @@ +/* +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 . +*/ +#include +#include +#include "matrix.h" +#include "quantum.h" + +static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; +static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; + +static inline void setPinOutput_writeLow(pin_t pin) { + ATOMIC_BLOCK_FORCEON { + setPinOutput(pin); + writePinLow(pin); + } +} + +static inline void setPinInputHigh_atomic(pin_t pin) { + ATOMIC_BLOCK_FORCEON { setPinInputHigh(pin); } +} + +static void select_row(uint8_t row) { + setPinOutput_writeLow(row_pins[row]); +} + +static void unselect_row(uint8_t row) { + setPinInputHigh_atomic(row_pins[row]); +} + +static void unselect_rows(void) { + for (uint8_t x = 0; x < MATRIX_ROWS; x++) { + setPinInputHigh_atomic(row_pins[x]); + } +} + +static void select_col(uint8_t col) { + setPinOutput_writeLow(col_pins[col]); +} + +static void unselect_col(uint8_t col) { + setPinInputHigh_atomic(col_pins[col]); +} + +static void unselect_cols(void) { + for (uint8_t x = 0; x < MATRIX_COLS; x++) { + setPinInputHigh_atomic(col_pins[x]); + } +} + +static void init_pins(void) { + unselect_rows(); + for (uint8_t x = 0; x < MATRIX_COLS; x++) { + setPinInputHigh_atomic(col_pins[x]); + } + unselect_cols(); + for (uint8_t x = 0; x < MATRIX_ROWS; x++) { + setPinInputHigh_atomic(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]; + + // Select row + select_row(current_row); + matrix_io_delay(); + + // For each col... + for (uint8_t col_index = 0; col_index < MATRIX_COLS / 2; col_index++) { + // Check row pin state + if (readPin(col_pins[col_index])) { + // Pin HI, clear col bit + current_matrix[current_row] &= ~(MATRIX_ROW_SHIFTER << col_index); + } else { + // Pin LO, set col bit + current_matrix[current_row] |= (MATRIX_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 + select_col(current_col); + matrix_io_delay(); + + // 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]; + + // Check row pin state + if (readPin(row_pins[row_index])) { + // Pin HI, clear col bit + current_matrix[row_index] &= ~(MATRIX_ROW_SHIFTER << ( current_col + MATRIX_COLS/2)); + } else { + // Pin LO, set col bit + current_matrix[row_index] |= (MATRIX_ROW_SHIFTER << ( current_col + MATRIX_COLS/2)); + } + + // 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); + + return matrix_changed; +} + +void matrix_init_custom(void) { + 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 (uint8_t)changed; +} -- cgit v1.2.3