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98 lines
2.9 KiB
98 lines
2.9 KiB
/**
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* \file
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*
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* \brief Common SPI DMA related functionality declaration.
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*
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* Copyright (C) 2016 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not 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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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT 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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* \asf_license_stop
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*
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*/
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#ifndef _HPL_SPI_DMA_H_INCLUDED
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#define _HPL_SPI_DMA_H_INCLUDED
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#include <hpl_irq.h>
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#include <hpl_dma.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** The callback types */
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enum _spi_dma_dev_cb_type {
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/** Callback type for DMA transmit. */
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SPI_DEV_CB_DMA_TX,
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/** Callback type for DMA receive. */
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SPI_DEV_CB_DMA_RX,
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/** Callback type for DMA error. */
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SPI_DEV_CB_DMA_ERROR,
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/** Number of callbacks. */
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SPI_DEV_CB_DMA_N
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};
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struct _spi_dma_dev;
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/**
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* \brief The prototype for callback on SPI DMA.
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*/
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typedef void (*_spi_dma_cb_t)(struct _dma_resource *resource);
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/**
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* \brief The callbacks offered by SPI driver
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*/
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struct _spi_dma_dev_callbacks {
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_spi_dma_cb_t tx;
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_spi_dma_cb_t rx;
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_spi_dma_cb_t error;
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};
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/** SPI driver to support DMA HAL */
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struct _spi_dma_dev {
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/** Pointer to the hardware base or private data for special device. */
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void *prvt;
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/** Pointer to callback functions */
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struct _spi_dma_dev_callbacks callbacks;
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/** IRQ instance for SPI device. */
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struct _irq_descriptor irq;
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/** DMA resource */
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struct _dma_resource *resource;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* ifndef _HPL_SPI_DMA_H_INCLUDED */
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