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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2019 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "fsl_xbarb.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.xbarb"
#endif
typedef union
{
uint8_t _u8[2];
uint16_t _u16;
} xbarb_u8_u16_t;
/*******************************************************************************
* Prototypes
******************************************************************************/
/*!
* @brief Get the XBARB instance from peripheral base address.
*
* @param base XBARB peripheral base address.
* @return XBARB instance.
*/
static uint32_t XBARB_GetInstance(XBARB_Type *base);
/*******************************************************************************
* Variables
******************************************************************************/
/* Array of XBARB peripheral base address. */
static XBARB_Type *const s_xbarbBases[] = XBARB_BASE_PTRS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Array of XBARB clock name. */
static const clock_ip_name_t s_xbarbClock[] = XBARB_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/*******************************************************************************
* Code
******************************************************************************/
static uint32_t XBARB_GetInstance(XBARB_Type *base)
{
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0; instance < ARRAY_SIZE(s_xbarbBases); instance++)
{
if (s_xbarbBases[instance] == base)
{
break;
}
}
assert(instance < ARRAY_SIZE(s_xbarbBases));
return instance;
}
/*!
* brief Initializes the XBARB module.
*
* This function un-gates the XBARB clock.
*
* param base XBARB peripheral address.
*/
void XBARB_Init(XBARB_Type *base)
{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Enable XBARB module clock. */
CLOCK_EnableClock(s_xbarbClock[XBARB_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}
/*!
* brief Shuts down the XBARB module.
*
* This function disables XBARB clock.
*
* param base XBARB peripheral address.
*/
void XBARB_Deinit(XBARB_Type *base)
{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Disable XBARB module clock. */
CLOCK_DisableClock(s_xbarbClock[XBARB_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}
/*!
* brief Configures a connection between the selected XBARB_IN[*] input and the XBARB_OUT[*] output signal.
*
* This function configures which XBARB input is connected to the selected XBARB output.
* If more than one XBARB module is available, only the inputs and outputs from the same module
* can be connected.
*
* param base XBARB peripheral address.
* param input XBARB input signal.
* param output XBARB output signal.
*/
void XBARB_SetSignalsConnection(XBARB_Type *base, xbar_input_signal_t input, xbar_output_signal_t output)
{
xbarb_u8_u16_t regVal;
uint8_t byteInReg;
uint8_t outputIndex = (uint8_t)output;
byteInReg = outputIndex % 2U;
regVal._u16 = XBARB_SELx(base, outputIndex);
regVal._u8[byteInReg] = (uint8_t)input;
XBARB_SELx(base, outputIndex) = regVal._u16;
}
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