text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2020 microDev
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #include "components/soc/include/hal/gpio_types.h"
  // above include fixes build error in idf@v4.2
  #include "peripherals/touch.h"
  
  static bool touch_inited = false;
  static bool touch_never_reset = false;
  
  void peripherals_touch_reset(void) {
      if (touch_inited && !touch_never_reset) {
          touch_pad_deinit();
          touch_inited = false;
      }
  }
  
  void peripherals_touch_never_reset(const bool enable) {
      touch_never_reset = enable;
  }
  
  void peripherals_touch_init(const touch_pad_t touchpad) {
      if (!touch_inited) {
          touch_pad_init();
          touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER);
      }
      // touch_pad_config() must be done before touch_pad_fsm_start() the first time.
      // Otherwise the calibration is wrong and we get maximum raw values if there is
      // a trace of any significant length on the pin.
      touch_pad_config(touchpad);
      if (!touch_inited) {
          touch_pad_fsm_start();
          touch_inited = true;
      }
  }
  