122 lines
3.9 KiB
C
122 lines
3.9 KiB
C
/*
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* File : drv_dma.h
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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_DMA_PAUSE (10)
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#define RT_DEVICE_CTRL_DMA_RESUME (11)
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//#define RT_DEVICE_CTRL_ (3) /* get the left time before reboot(in
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//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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#define ADC_CMD_READ_RAW_DATA (0x22)
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#define ADC_CMD_DISABLE (0x44)
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/*dma cmd */
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typedef enum
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{
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DMA_CMD_ADD_DESCRIPTOR = 0,
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DMA_CMD_START,
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DMA_CMD_STOP,
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}RT_DMA_DMD;
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typedef void (*RT_DMA_NOTIFIER_F)(void);
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typedef struct rt_dma_descriptor_s
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{
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rt_uint32_t srcAddr; /* Source address */
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rt_uint32_t dstAddr; /* Destination address */
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struct dma_descriptor_s *next; /* Pointing to next descriptor */
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rt_uint32_t reportAddr; /* The physical address to store DMA hardware reporting status */
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rt_uint32_t dataLength; /* Transfer byte count , max value = 2^22 */
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rt_uint32_t descAttr; /* Descriptor 's attribute */
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}RT_DMA_DESCRIPTOR_S;
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typedef struct
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{
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rt_uint32_t channel;
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rt_uint32_t mode;
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RT_DMA_NOTIFIER_F intNotifier;
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}RT_DMA_OPEN_PARAM_S;
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typedef struct rt_dma_device
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{
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// the parent must be the fitst para..
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rt_uint32_t handle;
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struct rt_device parent;
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RT_DMA_OPEN_PARAM_S openParam;
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}rt_dma_device_s;
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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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void rt_gk_dma_init(void);
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/********************************End Of File********************************/
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#endif
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