Rizky Ardi Maulana / mbed-os

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targets/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL27Z/drivers/fsl_dmamux.c@1:2b6e8130a0ac, 2018-02-22 (annotated)

Committer:
calmantara186
Date:
Thu Feb 22 14:05:19 2018 +0000
Revision:
1:2b6e8130a0ac
Parent:
0:f269e3021894 
mbed os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /*
elessair 0:f269e3021894 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
elessair 0:f269e3021894 3 * All rights reserved.
elessair 0:f269e3021894 4 *
elessair 0:f269e3021894 5 * Redistribution and use in source and binary forms, with or without modification,
elessair 0:f269e3021894 6 * are permitted provided that the following conditions are met:
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * o Redistributions of source code must retain the above copyright notice, this list
elessair 0:f269e3021894 9 * of conditions and the following disclaimer.
elessair 0:f269e3021894 10 *
elessair 0:f269e3021894 11 * o Redistributions in binary form must reproduce the above copyright notice, this
elessair 0:f269e3021894 12 * list of conditions and the following disclaimer in the documentation and/or
elessair 0:f269e3021894 13 * other materials provided with the distribution.
elessair 0:f269e3021894 14 *
elessair 0:f269e3021894 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
elessair 0:f269e3021894 16 * contributors may be used to endorse or promote products derived from this
elessair 0:f269e3021894 17 * software without specific prior written permission.
elessair 0:f269e3021894 18 *
elessair 0:f269e3021894 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
elessair 0:f269e3021894 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
elessair 0:f269e3021894 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
elessair 0:f269e3021894 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
elessair 0:f269e3021894 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
elessair 0:f269e3021894 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
elessair 0:f269e3021894 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
elessair 0:f269e3021894 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
elessair 0:f269e3021894 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
elessair 0:f269e3021894 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
elessair 0:f269e3021894 29 */
elessair 0:f269e3021894 30
elessair 0:f269e3021894 31 #include "fsl_dmamux.h"
elessair 0:f269e3021894 32
elessair 0:f269e3021894 33 /*******************************************************************************
elessair 0:f269e3021894 34 * Definitions
elessair 0:f269e3021894 35 ******************************************************************************/
elessair 0:f269e3021894 36
elessair 0:f269e3021894 37 /*******************************************************************************
elessair 0:f269e3021894 38 * Prototypes
elessair 0:f269e3021894 39 ******************************************************************************/
elessair 0:f269e3021894 40
elessair 0:f269e3021894 41 /*!
elessair 0:f269e3021894 42 * @brief Get instance number for DMAMUX.
elessair 0:f269e3021894 43 *
elessair 0:f269e3021894 44 * @param base DMAMUX peripheral base address.
elessair 0:f269e3021894 45 */
elessair 0:f269e3021894 46 static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base);
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48 /*******************************************************************************
elessair 0:f269e3021894 49 * Variables
elessair 0:f269e3021894 50 ******************************************************************************/
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52 /*! @brief Array to map DMAMUX instance number to base pointer. */
elessair 0:f269e3021894 53 static DMAMUX_Type *const s_dmamuxBases[] = DMAMUX_BASE_PTRS;
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 /*! @brief Array to map DMAMUX instance number to clock name. */
elessair 0:f269e3021894 56 static const clock_ip_name_t s_dmamuxClockName[] = DMAMUX_CLOCKS;
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 /*******************************************************************************
elessair 0:f269e3021894 59 * Code
elessair 0:f269e3021894 60 ******************************************************************************/
elessair 0:f269e3021894 61 static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base)
elessair 0:f269e3021894 62 {
elessair 0:f269e3021894 63 uint32_t instance;
elessair 0:f269e3021894 64
elessair 0:f269e3021894 65 /* Find the instance index from base address mappings. */
elessair 0:f269e3021894 66 for (instance = 0; instance < FSL_FEATURE_SOC_DMAMUX_COUNT; instance++)
elessair 0:f269e3021894 67 {
elessair 0:f269e3021894 68 if (s_dmamuxBases[instance] == base)
elessair 0:f269e3021894 69 {
elessair 0:f269e3021894 70 break;
elessair 0:f269e3021894 71 }
elessair 0:f269e3021894 72 }
elessair 0:f269e3021894 73
elessair 0:f269e3021894 74 assert(instance < FSL_FEATURE_SOC_DMAMUX_COUNT);
elessair 0:f269e3021894 75
elessair 0:f269e3021894 76 return instance;
elessair 0:f269e3021894 77 }
elessair 0:f269e3021894 78
elessair 0:f269e3021894 79 void DMAMUX_Init(DMAMUX_Type *base)
elessair 0:f269e3021894 80 {
elessair 0:f269e3021894 81 CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
elessair 0:f269e3021894 82 }
elessair 0:f269e3021894 83
elessair 0:f269e3021894 84 void DMAMUX_Deinit(DMAMUX_Type *base)
elessair 0:f269e3021894 85 {
elessair 0:f269e3021894 86 CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
elessair 0:f269e3021894 87 }