58 lines
2.5 KiB
C
58 lines
2.5 KiB
C
/*******************************************************************************
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* DISCLAIMER
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* This software is supplied by Renesas Electronics Corporation and is only
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* intended for use with Renesas products. No other uses are authorized. This
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* software is owned by Renesas Electronics Corporation and is protected under
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* all applicable laws, including copyright laws.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
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* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
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* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
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* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
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* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
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* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
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* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
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* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* Renesas reserves the right, without notice, to make changes to this software
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* and to discontinue the availability of this software. By using this software,
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* you agree to the additional terms and conditions found by accessing the
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* following link:
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* http://www.renesas.com/disclaimer
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* Copyright 2021-2022 Renesas Electronics Corporation All rights reserved.
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*******************************************************************************/
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/*******************************************************************************
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* DESCRIPTION : DMA driver header
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******************************************************************************/
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#ifndef DMA_DRIVER_H__
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#define DMA_DRIVER_H__
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#include <stdint.h>
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#include <dma_register.h>
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#include <log.h>
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/* fraction mask for 64-byte units */
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#define FRACTION_MASK_64_BYTE (0x0000003FU)
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#define TRANS_SIZE_64BYTE (0x40U)
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/* Prototype */
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void dma_init(void);
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void dma_trans_start(uint32_t dst, uint32_t src, uint32_t len);
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void dma_trans_end_check(void);
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void dma_release(void);
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/* Inline function */
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/* Check address align when RT-DMAC/SDMAC transfer */
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static inline void dma_address_align_check(uint32_t dst_addr, uint32_t src_addr)
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{
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if (((src_addr & FRACTION_MASK_64_BYTE) != 0U) || ((dst_addr & FRACTION_MASK_64_BYTE) != 0U))
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{
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/* src_addr or dst_addr are not 64-byte alignment. */
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ERROR("Not 64-byte alignment in DMA transfer\n");
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panic;
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}
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}
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#endif /* DMA_DRIVER_H__ */
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