62 lines
2 KiB
C
62 lines
2 KiB
C
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/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2012 LeafLabs, LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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#ifndef _LIBMAPLE_DMA_PRIVATE_H_
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#define _LIBMAPLE_DMA_PRIVATE_H_
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#include <libmaple/dma.h>
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#include <libmaple/libmaple_types.h>
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/*
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* IRQ handling
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*/
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/* Wrap this in an ifdef to shut up GCC. (We provide DMA_GET_HANDLER
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* in the series support files, which need dma_irq_handler().) */
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#ifdef DMA_GET_HANDLER
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static __always_inline void dma_irq_handler(dma_dev *dev, dma_tube tube) {
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void (*handler)(void) = DMA_GET_HANDLER(dev, tube);
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if (handler) {
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handler();
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dma_clear_isr_bits(dev, tube); /* in case handler doesn't */
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}
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}
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#endif
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/*
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* Conveniences for dealing with tube sources/destinations
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*/
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enum dma_atype {
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DMA_ATYPE_MEM,
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DMA_ATYPE_PER,
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DMA_ATYPE_OTHER,
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};
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enum dma_atype _dma_addr_type(__io void *addr);
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#endif
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