85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/****************************************************************************
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* arch/arm/src/cxd56xx/cxd56_dmac_common.h
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*
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* Copyright 2018 Sony Semiconductor Solutions Corporation
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*
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* Copyright (C) 2009, 2011-2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 NuttX 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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#ifndef __ARCH_ARM_SRC_CXD56XX_CXD56_DMAC_COMMON_H
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#define __ARCH_ARM_SRC_CXD56XX_CXD56_DMAC_COMMON_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* DMA_HANDLE provides an opaque are reference that can be used to represent
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* a DMA channel.
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*/
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typedef FAR void *DMA_HANDLE;
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/* Description:
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* This is the type of the callback that is used to inform the user of the
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* completion of the DMA.
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*
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* Input Parameters:
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* handle - Refers tot he DMA channel or stream
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* status - A bit encoded value that provides the completion status.
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* See the DMASTATUS_* definitions above.
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* arg - A user-provided value that was provided when cxd56_dmastart()
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* was called.
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*/
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typedef void (*dma_callback_t)(DMA_HANDLE handle, uint8_t status, void *arg);
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/* Type of 'config' argument passed to cxd56_rxdmasetup() and
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* cxd56_txdmasetup.
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* See CXD56_DMA_* encodings above. If these encodings exceed 16-bits, then
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* this should be changed to a uint32_t.
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*/
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typedef struct
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{
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uint16_t channel_cfg;
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uint8_t dest_width;
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uint8_t src_width;
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} dma_config_t;
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#endif /* __ARCH_ARM_SRC_CXD56XX_CXD56_DMAC_COMMON_H */
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