speck_cpa_cw/cw_firmware/deps/hal/lpc55s6x/drivers/fsl_inputmux.c

/*
 * Copyright (c) 2016, Freescale Semiconductor, Inc.
 * Copyright 2016-2017 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include "fsl_inputmux.h"

/*******************************************************************************
 * Definitions
 ******************************************************************************/

/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.inputmux"
#endif

/*******************************************************************************
 * Code
 ******************************************************************************/

/*!
 * brief	Initialize INPUTMUX peripheral.

 * This function enables the INPUTMUX clock.
 *
 * param base Base address of the INPUTMUX peripheral.
 *
 * retval None.
 */
void INPUTMUX_Init(INPUTMUX_Type *base)
{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
#if defined(FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE) && FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE
    CLOCK_EnableClock(kCLOCK_Sct);
    CLOCK_EnableClock(kCLOCK_Dma);
#else
    CLOCK_EnableClock(kCLOCK_InputMux);
#endif /* FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE */
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}

/*!
 * brief Attaches a signal
 *
 * This function gates the INPUTPMUX clock.
 *
 * param base Base address of the INPUTMUX peripheral.
 * param index Destination peripheral to attach the signal to.
 * param connection Selects connection.
 *
 * retval None.
*/
void INPUTMUX_AttachSignal(INPUTMUX_Type *base, uint32_t index, inputmux_connection_t connection)
{
    uint32_t pmux_id;
    uint32_t output_id;

    /* extract pmux to be used */
    pmux_id = ((uint32_t)(connection)) >> PMUX_SHIFT;
    /*  extract function number */
    output_id = ((uint32_t)(connection)) & 0xffffU;
    /* programm signal */
    *(volatile uint32_t *)(((uint32_t)base) + pmux_id + (index * 4)) = output_id;
}

#if defined(FSL_FEATURE_INPUTMUX_HAS_SIGNAL_ENA)
/*!
 * brief Enable/disable a signal
 *
 * This function gates the INPUTPMUX clock.
 *
 * param base Base address of the INPUTMUX peripheral.
 * param signal Enable signal register id and bit offset.
 * param enable Selects enable or disable.
 *
 * retval None.
*/
void INPUTMUX_EnableSignal(INPUTMUX_Type *base, inputmux_signal_t signal, bool enable)
{
    uint32_t ena_id;
    uint32_t bit_offset;

    /* extract enable register to be used */
    ena_id = ((uint32_t)(signal)) >> ENA_SHIFT;
    /* extract enable bit offset */
    bit_offset = ((uint32_t)(signal)) & 0xfU;
    /* set signal */
    if (enable)
    {
        *(volatile uint32_t *)(((uint32_t)base) + ena_id) |= (1U << bit_offset);
    }
    else
    {
        *(volatile uint32_t *)(((uint32_t)base) + ena_id) &= ~(1U << bit_offset);
    }
}
#endif

/*!
 * brief	Deinitialize INPUTMUX peripheral.

 * This function disables the INPUTMUX clock.
 *
 * param base Base address of the INPUTMUX peripheral.
 *
 * retval None.
 */
void INPUTMUX_Deinit(INPUTMUX_Type *base)
{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
#if defined(FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE) && FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE
    CLOCK_DisableClock(kCLOCK_Sct);
    CLOCK_DisableClock(kCLOCK_Dma);
#else
    CLOCK_DisableClock(kCLOCK_InputMux);
#endif /* FSL_FEATURE_INPUTMUX_HAS_NO_INPUTMUX_CLOCK_SOURCE */
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}