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