From 5d7f2823c947264d3ff3bb4f057f8e050d6b4af1 Mon Sep 17 00:00:00 2001 From: Joel Challis Date: Thu, 22 Jul 2021 23:01:19 +0100 Subject: Implement GPIO abstraction for atsam (#13567) * Implement GPIO abstraction for atsam * Convert Drop boards to normal matrix config * Work round pin conflicts and matrix delay --- keyboards/massdrop/alt/matrix.c | 76 ----------------------------------------- 1 file changed, 76 deletions(-) delete mode 100644 keyboards/massdrop/alt/matrix.c (limited to 'keyboards/massdrop/alt/matrix.c') diff --git a/keyboards/massdrop/alt/matrix.c b/keyboards/massdrop/alt/matrix.c deleted file mode 100644 index 181f223e40..0000000000 --- a/keyboards/massdrop/alt/matrix.c +++ /dev/null @@ -1,76 +0,0 @@ -/* -Copyright 2018 Massdrop Inc. - -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 "alt.h" -#include "d51_util.h" - -const uint8_t row_ports[] = {MATRIX_ROW_PORTS}; -const uint8_t row_pins[] = {MATRIX_ROW_PINS}; -const uint8_t col_ports[] = {MATRIX_COL_PORTS}; -const uint8_t col_pins[] = {MATRIX_COL_PINS}; -uint32_t row_masks[2]; // NOTE: If more than PA PB used in the future, adjust code to accommodate - -void matrix_init_custom(void) { - row_masks[PA] = 0; - row_masks[PB] = 0; - - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - PORT->Group[row_ports[row]].DIRCLR.reg = 1 << row_pins[row]; // Input - PORT->Group[row_ports[row]].OUTCLR.reg = 1 << row_pins[row]; // Low - PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.INEN = 1; // Input Enable, - PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.PULLEN = 1; // Pull Enable - row_masks[row_ports[row]] |= 1 << row_pins[row]; // Add pin to proper row mask - } - - for (uint8_t col = 0; col < MATRIX_COLS; col++) { - PORT->Group[col_ports[col]].DIRSET.reg = 1 << col_pins[col]; // Output - PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Low - } -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - matrix_row_t raw[MATRIX_ROWS] = {0}; - uint32_t scans[2]; // PA PB - - for (uint8_t col = 0; col < MATRIX_COLS; col++) { - PORT->Group[col_ports[col]].OUTSET.reg = 1 << col_pins[col]; // Set col output - - matrix_io_delay(); // Delay for output - - scans[PA] = PORT->Group[PA].IN.reg & row_masks[PA]; // Read PA row pins data - scans[PB] = PORT->Group[PB].IN.reg & row_masks[PB]; // Read PB row pins data - - PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Clear col output - - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - // Move scan bits from scans array into proper row bit locations - if (scans[row_ports[row]] & (1 << row_pins[row])) { - raw[row] |= 1 << col; - } - } - } - - bool changed = false; - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - if (current_matrix[row] != raw[row]) { - current_matrix[row] = raw[row]; - changed = true; - } - } - - return changed; -} -- cgit v1.2.1