108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*
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* This file is part of FH8620 BSP for RT-Thread distribution.
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*
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* Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd.
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* All rights reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Visit http://www.fullhan.com to get contact with Fullhan.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef DMA_H_
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#define DMA_H_
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#include <rtthread.h>
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/****************************************************************************
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* #include section
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* add #include here if any
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***************************************************************************/
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/****************************************************************************
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* #define section
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* add constant #define here if any
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***************************************************************************/
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#define RT_DEVICE_CTRL_DMA_OPEN (1)
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#define RT_DEVICE_CTRL_DMA_CLOSE (2)
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#define RT_DEVICE_CTRL_DMA_REQUEST_CHANNEL (3)
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#define RT_DEVICE_CTRL_DMA_RELEASE_CHANNEL (4)
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#define RT_DEVICE_CTRL_DMA_SINGLE_TRANSFER (5)
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//cyclic add func below....
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#define RT_DEVICE_CTRL_DMA_CYCLIC_PREPARE (6)
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#define RT_DEVICE_CTRL_DMA_CYCLIC_START (7)
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#define RT_DEVICE_CTRL_DMA_CYCLIC_STOP (8)
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#define RT_DEVICE_CTRL_DMA_CYCLIC_FREE (9)
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//#define RT_DEVICE_CTRL_ (3) /* get the left time before reboot(in seconds) */
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//#define RT_DEVICE_CTRL_ (4) /* refresh watchdog */
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//#define RT_DEVICE_CTRL_ (5) /* start watchdog */
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//#define RT_DEVICE_CTRL_ (6) /* stop watchdog */
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/****************************************************************************
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* ADT section
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* add Abstract Data Type definition here
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***************************************************************************/
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struct rt_dma_ops;
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struct rt_dma_device
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{
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// the parent must be the fitst para..
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struct rt_device parent;
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struct rt_dma_ops *ops;
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};
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struct rt_dma_ops
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{
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rt_err_t (*init)(struct rt_dma_device *dma);
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rt_err_t (*control)(struct rt_dma_device *dma, int cmd, void *arg);
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};
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/****************************************************************************
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* extern variable declaration section
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***************************************************************************/
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/****************************************************************************
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* section
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* add function prototype here if any
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***************************************************************************/
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rt_err_t rt_hw_dma_register(struct rt_dma_device *dma,
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const char *name,
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rt_uint32_t flag,
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void *data);
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/********************************End Of File********************************/
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#endif
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