nrfx_glue.h

/**
 * 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, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, 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 Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 *
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
 *
 * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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__

#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)


#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#endif

//------------------------------------------------------------------------------

#ifdef SOFTDEVICE_PRESENT
#define INTERRUPT_PRIORITY_IS_VALID(pri) ((((pri) > 1) && ((pri) < 4)) || \
                                          (((pri) > 4) && ((pri) < 8)))
#else
#define INTERRUPT_PRIORITY_IS_VALID(pri) ((pri) < 8)
#endif //SOFTDEVICE_PRESENT

/**
 * @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()   // CRITICAL_REGION_ENTER()

/**
 * @brief Macro for exiting from a critical section.
 */
#define NRFX_CRITICAL_SECTION_EXIT()    // CRITICAL_REGION_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)
#define NRFX_DELAY_MS(ms_time)    NRFX_DELAY_US(1000*ms_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__