text: /* mbed Microcontroller Library
   * Copyright (c) 2019 Arm Limited
   *
   * SPDX-License-Identifier: Apache-2.0
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  /*
   * This file implements APIS defined in hal/gpio_api.h
   * Note: Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
   *       service should be used for GPIO in NS domain.
   */
  
  #include <stddef.h>
  #include "gpio_api.h"
  #include "pinmap.h"
  #include "objects.h"
  #include "mbed_error.h"
  
  uint32_t gpio_set(PinName pin)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
      return 0;
  }
  
  void gpio_init(gpio_t *obj, PinName pin)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
  }
  
  void gpio_mode(gpio_t *obj, PinMode mode)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
  }
  
  void gpio_dir(gpio_t *obj, PinDirection direction)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
  }
  
  int gpio_is_connected(const gpio_t *obj)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
      return 0;
  }
  
  void gpio_write(gpio_t *obj, int value)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
  }
  
  int gpio_read(gpio_t *obj)
  {
      /* Due to a HW limitation, GPIO in Musca-A1 is Secure only, so secure
       * service should be used for GPIO in NS domain.
       */
      return 0;
  }
  