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56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/***************************************************************************//**
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* @file
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* @brief
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*******************************************************************************
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* # License
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* <b>Copyright 2020 Silicon Laboratories Inc. www.silabs.com</b>
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*******************************************************************************
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*
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* SPDX-License-Identifier: Zlib
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*
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* The licensor of this software is Silicon Laboratories Inc.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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******************************************************************************/
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#include "em_ldma.h"
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#include "dmadrv.h"
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#include "rail.h"
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#include "sl_rail_util_dma.h"
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void sl_rail_util_dma_init(void)
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{
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#if SL_RAIL_UTIL_DMA_ENABLE
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#if SL_RAIL_UTIL_DMA_DMADRV_ENABLE
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Ecode_t dmaError = DMADRV_Init();
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if ((dmaError == ECODE_EMDRV_DMADRV_ALREADY_INITIALIZED)
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|| (dmaError == ECODE_EMDRV_DMADRV_OK)) {
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unsigned int channel;
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dmaError = DMADRV_AllocateChannel(&channel, NULL);
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if (dmaError == ECODE_EMDRV_DMADRV_OK) {
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(void) RAIL_UseDma(channel);
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}
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}
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#else // !SL_RAIL_UTIL_DMA_DMADRV_ENABLE
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LDMA_Init_t ldmaInit = LDMA_INIT_DEFAULT;
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LDMA_Init(&ldmaInit);
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(void) RAIL_UseDma(SL_RAIL_UTIL_DMA_CHANNEL);
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#endif // SL_RAIL_UTIL_DMA_DMADRV_ENABLE
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#endif // SL_RAIL_UTIL_DMA_ENABLE
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}
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