text: /*
   * Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * 3. Neither the name of the copyright holder nor the names of its
   *    contributors may be used to endorse or promote products derived from this
   *    software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef NRFX_GLUE_H__
  #define NRFX_GLUE_H__
  
  // THIS IS A TEMPLATE FILE.
  // It should be copied to a suitable location within the host environment into
  // which nrfx is integrated, and the following macros should be provided with
  // appropriate implementations.
  // And this comment should be removed from the customized file.
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /**
   * @defgroup nrfx_glue nrfx_glue.h
   * @{
   * @ingroup nrfx
   *
   * @brief This file contains macros that should be implemented according to
   *        the needs of the host environment into which @em nrfx is integrated.
   */
  
  // Uncomment this line to use the standard MDK way of binding IRQ handlers
  // at linking time.
  #include <soc/nrfx_irqs.h>
  
  //------------------------------------------------------------------------------
  
  /**
   * @brief Macro for placing a runtime assertion.
   *
   * @param expression  Expression to evaluate.
   */
  #define NRFX_ASSERT(expression)
  
  /**
   * @brief Macro for placing a compile time assertion.
   *
   * @param expression  Expression to evaluate.
   */
  #define NRFX_STATIC_ASSERT(expression)
  
  //------------------------------------------------------------------------------
  
  /**
   * @brief Macro for setting the priority of a specific IRQ.
   *
   * @param irq_number  IRQ number.
   * @param priority    Priority to set.
   */
  #define NRFX_IRQ_PRIORITY_SET(irq_number, priority) _NRFX_IRQ_PRIORITY_SET(irq_number, priority)
  static inline void _NRFX_IRQ_PRIORITY_SET(IRQn_Type irq_number,
                                            uint8_t   priority)
  {
      NRFX_ASSERT(INTERRUPT_PRIORITY_IS_VALID(priority));
      NVIC_SetPriority(irq_number, priority);
  }
  
  /**
   * @brief Macro for enabling a specific IRQ.
   *
   * @param irq_number  IRQ number.
   */
  #define NRFX_IRQ_ENABLE(irq_number)  _NRFX_IRQ_ENABLE(irq_number)
  static inline void _NRFX_IRQ_ENABLE(IRQn_Type irq_number)
  {
      NVIC_ClearPendingIRQ(irq_number);
      NVIC_EnableIRQ(irq_number);
  }
  
  /**
   * @brief Macro for checking if a specific IRQ is enabled.
   *
   * @param irq_number  IRQ number.
   *
   * @retval true  If the IRQ is enabled.
   * @retval false Otherwise.
   */
  #define NRFX_IRQ_IS_ENABLED(irq_number)  _NRFX_IRQ_IS_ENABLED(irq_number)
  static inline bool _NRFX_IRQ_IS_ENABLED(IRQn_Type irq_number)
  {
      return 0 != (NVIC->ISER[irq_number / 32] & (1UL << (irq_number % 32)));
  }
  
  /**
   * @brief Macro for disabling a specific IRQ.
   *
   * @param irq_number  IRQ number.
   */
  #define NRFX_IRQ_DISABLE(irq_number)  _NRFX_IRQ_DISABLE(irq_number)
  static inline void _NRFX_IRQ_DISABLE(IRQn_Type irq_number)
  {
      NVIC_DisableIRQ(irq_number);
  }
  
  /**
   * @brief Macro for setting a specific IRQ as pending.
   *
   * @param irq_number  IRQ number.
   */
  #define NRFX_IRQ_PENDING_SET(irq_number) _NRFX_IRQ_PENDING_SET(irq_number)
  static inline void _NRFX_IRQ_PENDING_SET(IRQn_Type irq_number)
  {
      NVIC_SetPendingIRQ(irq_number);
  }
  
  /**
   * @brief Macro for clearing the pending status of a specific IRQ.
   *
   * @param irq_number  IRQ number.
   */
  #define NRFX_IRQ_PENDING_CLEAR(irq_number) _NRFX_IRQ_PENDING_CLEAR(irq_number)
  static inline void _NRFX_IRQ_PENDING_CLEAR(IRQn_Type irq_number)
  {
      NVIC_ClearPendingIRQ(irq_number);
  }
  
  /**
   * @brief Macro for checking the pending status of a specific IRQ.
   *
   * @retval true  If the IRQ is pending.
   * @retval false Otherwise.
   */
  #define NRFX_IRQ_IS_PENDING(irq_number) _NRFX_IRQ_IS_PENDING(irq_number)
  static inline bool _NRFX_IRQ_IS_PENDING(IRQn_Type irq_number)
  {
      return (NVIC_GetPendingIRQ(irq_number) == 1);
  }
  
  /**
   * @brief Macro for entering into a critical section.
   */
  #define NRFX_CRITICAL_SECTION_ENTER()
  
  /**
   * @brief Macro for exiting from a critical section.
   */
  #define NRFX_CRITICAL_SECTION_EXIT()
  
  //------------------------------------------------------------------------------
  
  /**
   * @brief When set to a non-zero value, this macro specifies that
   *        @ref nrfx_coredep_delay_us uses a precise DWT-based solution.
   *        A compilation error is generated if the DWT unit is not present
   *        in the SoC used.
   */
  #define NRFX_DELAY_DWT_BASED    0
  
  /**
   * @brief Macro for delaying the code execution for at least the specified time.
   *
   * @param us_time Number of microseconds to wait.
   */
  #include <soc/nrfx_coredep.h>
  #define NRFX_DELAY_US(us_time) nrfx_coredep_delay_us(us_time)
  
  //------------------------------------------------------------------------------
  
  /**
   * @brief When set to a non-zero value, this macro specifies that the
   *        @ref nrfx_error_codes and the @ref nrfx_err_t type itself are defined
   *        in a customized way and the default definitions from @c <nrfx_error.h>
   *        should not be used.
   */
  #define NRFX_CUSTOM_ERROR_CODES 0
  
  //------------------------------------------------------------------------------
  
  /**
   * @brief Bitmask defining PPI channels reserved to be used outside of nrfx.
   */
  #define NRFX_PPI_CHANNELS_USED  0
  
  /**
   * @brief Bitmask defining PPI groups reserved to be used outside of nrfx.
   */
  #define NRFX_PPI_GROUPS_USED    0
  
  /**
   * @brief Bitmask defining SWI instances reserved to be used outside of nrfx.
   */
  #define NRFX_SWI_USED           0
  
  /**
   * @brief Bitmask defining TIMER instances reserved to be used outside of nrfx.
   */
  #define NRFX_TIMERS_USED        0
  
  /** @} */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif // NRFX_GLUE_H__
  