136 lines
4.2 KiB
C
136 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 2016, Freescale Semiconductor, Inc.
|
|
* Copyright 2016-2021 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)) & ((1UL << PMUX_SHIFT) - 1U);
|
|
/* programm signal */
|
|
*(volatile uint32_t *)(((uint32_t)base) + pmux_id + (index * 4U)) = 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 ena_id_mask = (1UL << (32U - ENA_SHIFT)) - 1U;
|
|
uint32_t bit_offset;
|
|
|
|
#if defined(FSL_FEATURE_INPUTMUX_HAS_CHANNEL_MUX) && FSL_FEATURE_INPUTMUX_HAS_CHANNEL_MUX
|
|
uint32_t chmux_offset;
|
|
uint32_t chmux_value;
|
|
|
|
/* Only enable need to update channel mux */
|
|
if (enable && ((((uint32_t)signal) & (1UL << CHMUX_AVL_SHIFT)) != 0U))
|
|
{
|
|
chmux_offset = (((uint32_t)signal) >> CHMUX_OFF_SHIFT) & ((1UL << (CHMUX_AVL_SHIFT - CHMUX_OFF_SHIFT)) - 1UL);
|
|
chmux_value = (((uint32_t)signal) >> CHMUX_VAL_SHIFT) & ((1UL << (CHMUX_OFF_SHIFT - CHMUX_VAL_SHIFT)) - 1UL);
|
|
*(volatile uint32_t *)(((uint32_t)base) + chmux_offset) = chmux_value;
|
|
}
|
|
ena_id_mask = (1UL << (CHMUX_VAL_SHIFT - ENA_SHIFT)) - 1U;
|
|
#endif
|
|
/* extract enable register to be used */
|
|
ena_id = (((uint32_t)signal) >> ENA_SHIFT) & ena_id_mask;
|
|
/* extract enable bit offset */
|
|
bit_offset = ((uint32_t)signal) & ((1UL << ENA_SHIFT) - 1U);
|
|
/* set signal */
|
|
if (enable)
|
|
{
|
|
*(volatile uint32_t *)(((uint32_t)base) + ena_id) |= (1UL << bit_offset);
|
|
}
|
|
else
|
|
{
|
|
*(volatile uint32_t *)(((uint32_t)base) + ena_id) &= ~(1UL << 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 */
|
|
}
|