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Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.

This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
be copied by any method or incorporated into another program without
the express written consent of Aerospace C.Power. This Information or any portion
thereof remains the property of Aerospace C.Power. The Information contained herein
is believed to be accurate and Aerospace C.Power assumes no responsibility or
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****************************************************************************/

#ifndef MAC_DMA_H
#define MAC_DMA_H
#include "os_types.h"

#ifdef __cplusplus
extern "C" {
#endif

#define MAX_DMA_FRAG_NUM    3

/* pack for the structures in the whole file */
#pragma pack(push)	// save the pack status
#pragma pack(1)		// 1 byte align

typedef PREPACK struct _dma_frag {
    uint32_t addr; // the addr of the data pointer, not the data itself
    uint32_t need_free : 1, // to be removed in future
        hw_own : 1, // is hw own this frag buf
        len : 30;
} POSTPACK dma_frag_t;

typedef PREPACK struct _dma_frag_list {
    dma_frag_t buf_frag;
    struct dma_frag_list_t *next;
} POSTPACK dma_frag_list_t;


#pragma pack(pop)	// restore the pack status


#ifdef __cplusplus
}
#endif

#endif  //MAC_DMA_H