Kaleidoscope/plugins/Kaleidoscope-Hardware-EZ-ErgoDox/src/kaleidoscope/device/ez/ErgoDox/ErgoDoxScanner.h

/* -*- mode: c++ -*-
 * Kaleidoscope-Hardware-EZ-ErgoDox -- ErgoDox hardware support for Kaleidoscope
 * Copyright (C) 2018, 2019  Keyboard.io, Inc
 *
 * Based on QMK (commit 8cdb4a915)
 *  (C) Jack Humbert, Erez Zukerman, Oleg Kostyuk
 * Original QMK sources:
 *  - keyboards/ergodox_ez/ergodox_ez.c
 *  - keyboards/ergodox_ez/ergodox_ez.h
 *  - keyboards/ergodox_ez/matrix.c
 *
 * 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 3 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/>.
 */

#pragma once

#ifdef ARDUINO_AVR_ERGODOX

#include <stdint.h>

namespace kaleidoscope {
namespace device {
namespace ez {

class ErgoDoxScanner {
 public:
  ErgoDoxScanner() {}

  void begin();
  void toggleATMegaRow(int row);
  void selectExtenderRow(int row);
  uint8_t readCols(int row);

  void reattachExpanderOnError();

 private:
  uint8_t expander_error_ = 0x20;

  uint8_t initExpander();
};

}  // namespace ez
}  // namespace device
}  // namespace kaleidoscope

#endif