88 lines
3.3 KiB
C
88 lines
3.3 KiB
C
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/*
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fsl_dmamux.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*!
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* @brief Get instance number for DMAMUX.
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*
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* @param base DMAMUX peripheral base address.
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*/
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static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base);
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/*! @brief Array to map DMAMUX instance number to base pointer. */
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static DMAMUX_Type *const s_dmamuxBases[] = DMAMUX_BASE_PTRS;
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/*! @brief Array to map DMAMUX instance number to clock name. */
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static const clock_ip_name_t s_dmamuxClockName[] = DMAMUX_CLOCKS;
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/*******************************************************************************
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* Code
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******************************************************************************/
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static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base)
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{
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uint32_t instance;
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/* Find the instance index from base address mappings. */
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for (instance = 0; instance < FSL_FEATURE_SOC_DMAMUX_COUNT; instance++)
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{
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if (s_dmamuxBases[instance] == base)
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{
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break;
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}
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}
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assert(instance < FSL_FEATURE_SOC_DMAMUX_COUNT);
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return instance;
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}
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void DMAMUX_Init(DMAMUX_Type *base)
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{
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CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
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}
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void DMAMUX_Deinit(DMAMUX_Type *base)
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{
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CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
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}
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