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72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2016 PX4 Development Team. 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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file board_dma_alloc.c
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*
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* Provide the board dma allocator interface.
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*/
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#include <px4_config.h>
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#include "board_config.h"
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#include "board_dma_alloc.h"
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#include <perf/perf_counter.h>
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#if defined(CONFIG_FAT_DMAMEMORY)
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# if !defined(CONFIG_GRAN)
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# error microSD DMA support requires CONFIG_GRAN and CONFIG_FAT_DMAMEMORY
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# endif
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/*
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* DMA-aware allocator stubs for the FAT filesystem.
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*/
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__EXPORT void *fat_dma_alloc(size_t size);
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__EXPORT void fat_dma_free(FAR void *memory, size_t size);
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void *
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fat_dma_alloc(size_t size)
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{
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return board_dma_alloc(size);
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}
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void
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fat_dma_free(FAR void *memory, size_t size)
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{
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return board_dma_free(memory, size);
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}
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#endif /* CONFIG_FAT_DMAMEMORY && CONFIG_GRAN */
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