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git-subtree-dir: examples/knx-cc1310/coresdk_cc13xx_cc26xx git-subtree-split: 0d78d3280357416a5c0388148cda13717c9ffaa5
87 lines
4.1 KiB
C
87 lines
4.1 KiB
C
/*
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* Copyright (c) 2015-2019, Texas Instruments Incorporated
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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
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this 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"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* ======== I2S.c ========
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*/
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#include <ti/drivers/I2S.h>
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extern const I2S_Config I2S_config[];
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extern const uint_least8_t I2S_count;
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/* Default I2S parameters structure */
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const I2S_Params I2S_defaultParams = {
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.samplingFrequency = 8000, /* Sampling Freq */
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.memorySlotLength = I2S_MEMORY_LENGTH_16BITS, /* Memory slot length */
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.moduleRole = I2S_MASTER, /* Master / Slave selection */
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.invertWS = (bool)true, /* WS inversion */
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.isMSBFirst = (bool)true, /* Endianness selection*/
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.isDMAUnused = (bool)false, /* Selection between DMA and CPU transmissions*/
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.samplingEdge = I2S_SAMPLING_EDGE_RISING, /* Sampling edge*/
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.beforeWordPadding = 0, /* Before sample padding */
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.bitsPerWord = 16, /* Bits/Sample */
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.afterWordPadding = 0, /* After sample padding */
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.fixedBufferLength = 1, /* Fixed Buffer Length */
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.SD0Use = I2S_SD0_OUTPUT, /* SD0Use */
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.SD1Use = I2S_SD1_INPUT, /* SD1Use */
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.SD0Channels = I2S_CHANNELS_STEREO, /* Channels activated on SD0 */
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.SD1Channels = I2S_CHANNELS_STEREO, /* Channels activated on SD1 */
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.phaseType = I2S_PHASE_TYPE_DUAL, /* Phase type */
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.startUpDelay = 0, /* Start up delay */
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.MCLKDivider = 40, /* MCLK divider */
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.readCallback = NULL, /* Read callback */
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.writeCallback = NULL, /* Write callback */
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.errorCallback = NULL, /* Error callback */
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.custom = NULL, /* customParams */
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};
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/*
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* ======== I2S_Params_init ========
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*/
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void I2S_Params_init(I2S_Params *params)
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{
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*params = I2S_defaultParams;
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}
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/*
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* ======== I2S_Transaction_init ========
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*/
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void I2S_Transaction_init(I2S_Transaction *transaction)
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{
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transaction->bufPtr = NULL;
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transaction->bufSize = 0;
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transaction->bytesTransferred = 0;
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transaction->untransferredBytes = 0;
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transaction->numberOfCompletions = 0;
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transaction->arg = (uintptr_t)NULL;
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}
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