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/******************************************************************************

*

* Copyright (C) 2010 - 2015 Xilinx, Inc.  All rights reserved.

*

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

*

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

*

* Use of the Software is limited solely to applications:

* (a) running on a Xilinx device, or

* (b) that interact with a Xilinx device through a bus or interconnect.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

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*

* Except as contained in this notice, the name of the Xilinx shall not be used

* in advertising or otherwise to promote the sale, use or other dealings in

* this Software without prior written authorization from Xilinx.

*

******************************************************************************/

/*****************************************************************************/

/**

 *

 * @file xaxidma_bd.h

* @addtogroup axidma_v9_0

* @{

 *

 * Buffer descriptor (BD) management API.

 *

 * <b> Buffer Descriptors </b>

 *

 * A BD defines a DMA transaction (see "Transaction" section in xaxidma.h).

 * All accesses to a BD go through this set of API.

 *

 * The XAxiDma_Bd structure defines a BD. The first XAXIDMA_BD_HW_NUM_BYTES

 * are shared between hardware and software.

 *

 * <b> Actual Transfer Length </b>

 *

 * The actual transfer length for receive could be smaller than the requested

 * transfer length. The hardware sets the actual transfer length in the

 * completed BD. The API to retrieve the actual transfer length is

 * XAxiDma_GetActualLength().

 *

 * <b> User IP words </b>

 *

 * There are 5 user IP words in each BD.

 *

 * If hardware does not have the StsCntrl stream built in, then these words

 * are not usable. Retrieving these words get a NULL pointer and setting

 * these words results an error.

 *

 * <b> Performance </b>

 *

 * BDs are typically in a non-cached memory space. Reducing the number of

 * I/O operations to BDs can improve overall performance of the DMA channel.

 *

 * <pre>

 * MODIFICATION HISTORY:

 *

 * Ver   Who  Date     Changes

 * ----- ---- -------- ------------------------------------------------------

 * 1.00a jz   05/18/10 First release

 * 2.00a jz   08/10/10 Second release, added in xaxidma_g.c, xaxidma_sinit.c,

 *                     updated tcl file, added xaxidma_porting_guide.h

 * 3.00a jz   11/22/10 Support IP core parameters change

 * 5.00a srt  08/25/11 Changed Cache Macros to have a common API for Zynq

 *                         and Microblaze.

 * 6.00a srt  01/24/12 Added APIs to support Multi-Channel DMA:

 *                      XAxiDma_BdSetTId()

 *                      XAxiDma_BdGetTId()

 *                      XAxiDma_BdSetTDest()

 *                      XAxiDma_BdGetTDest()

 *                      XAxiDma_BdSetTUser()

 *                      XAxiDma_BdGetTUser()

 *                      XAxiDma_BdSetARCache()

 *                      XAxiDma_BdGetARCache()

 *                      XAxiDma_BdSetARUser()

 *                      XAxiDma_BdGetARUser()

 *                      XAxiDma_BdSetStride()

 *                      XAxiDma_BdGetStride()

 *                      XAxiDma_BdSetVSize()

 *                      XAxiDma_BdGetVSize()

 *                      - Changed APIs

 *                      XAxiDma_BdGetActualLength(BdPtr, LengthMask)

 *                      XAxiDma_BdGetLength(BdPtr, LengthMask)

 *                      XAxiDma_BdSetLength(XAxiDma_Bd* BdPtr,

 *                                      u32 LenBytes, u32 LengthMask)

 * 7.01a srt  10/26/12  Changed the logic of MCDMA BD fields Set APIs, to

 *                      clear the field first and set it.

 * 8.0   srt  01/29/14 Added support for Micro DMA Mode.

 *

 * </pre>

 *****************************************************************************/

#ifndef XAXIDMA_BD_H_    /* To prevent circular inclusions */

#define XAXIDMA_BD_H_

#ifdef __cplusplus

extern "C" {

#endif

/***************************** Include Files *********************************/

#include "xaxidma_hw.h"

#include "xstatus.h"

#include "xdebug.h"

#include "xil_cache.h"

#ifdef __MICROBLAZE__

#include "xenv.h"

#else

#include <string.h>

#endif

/************************** Constant Definitions *****************************/

/**************************** Type Definitions *******************************/

/**

 * The XAxiDma_Bd is the type for a buffer descriptor (BD).

 */

typedef UINTPTR XAxiDma_Bd[XAXIDMA_BD_NUM_WORDS];

/***************** Macros (Inline Functions) Definitions *********************/

/******************************************************************************

 * Define methods to flush and invalidate cache for BDs should they be

 * located in cached memory.

 *****************************************************************************/

#ifdef __aarch64__

#define XAXIDMA_CACHE_FLUSH(BdPtr)

#define XAXIDMA_CACHE_INVALIDATE(BdPtr)

#else

#define XAXIDMA_CACHE_FLUSH(BdPtr) \

        Xil_DCacheFlushRange((UINTPTR)(BdPtr), XAXIDMA_BD_HW_NUM_BYTES)

#define XAXIDMA_CACHE_INVALIDATE(BdPtr) \

        Xil_DCacheInvalidateRange((UINTPTR)(BdPtr), XAXIDMA_BD_HW_NUM_BYTES)

#endif

/*****************************************************************************/

/**

*

* Read the given Buffer Descriptor word.

*

* @param        BaseAddress is the base address of the BD to read

* @param        Offset is the word offset to be read

*

* @return       The 32-bit value of the field

*

* @note

*               C-style signature:

*               u32 XAxiDma_BdRead(u32 BaseAddress, u32 Offset)

*

******************************************************************************/

#define XAxiDma_BdRead(BaseAddress, Offset)                             \

        (*(u32 *)((UINTPTR)((void *)(BaseAddress)) + (u32)(Offset)))

/*****************************************************************************/

/**

*

* Write the given Buffer Descriptor word.

*

* @param        BaseAddress is the base address of the BD to write

* @param        Offset is the word offset to be written

* @param        Data is the 32-bit value to write to the field

*

* @return       None.

*

* @note

*               C-style signature:

*               void XAxiDma_BdWrite(u32 BaseAddress, u32 RegOffset, u32 Data)

*

******************************************************************************/

#define XAxiDma_BdWrite(BaseAddress, Offset, Data)                      \

        (*(u32 *)((UINTPTR)(void *)(BaseAddress) + (u32)(Offset))) = (u32)(Data)

/*****************************************************************************/

/**

 * Zero out BD specific fields. BD fields that are for the BD ring or for the

 * system hardware build information are not touched.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdClear(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdClear(BdPtr)                    \

  memset((void *)(((UINTPTR)(BdPtr)) + XAXIDMA_BD_START_CLEAR), 0, \

    XAXIDMA_BD_BYTES_TO_CLEAR)

/*****************************************************************************/

/**

 * Get the control bits for the BD

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      The bit mask for the control of the BD

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetCtrl(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetCtrl(BdPtr)                                \

                (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_CTRL_LEN_OFFSET)    \

                & XAXIDMA_BD_CTRL_ALL_MASK)

/*****************************************************************************/

/**

 * Retrieve the status of a BD

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      Word at offset XAXIDMA_BD_DMASR_OFFSET. Use XAXIDMA_BD_STS_***

 *              values defined in xaxidma_hw.h to interpret the returned value

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetSts(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetSts(BdPtr)              \

        (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET) & \

                XAXIDMA_BD_STS_ALL_MASK)

/*****************************************************************************/

/**

 * Retrieve the length field value from the given BD.  The returned value is

 * the same as what was written with XAxiDma_BdSetLength(). Note that in the

 * this value does not reflect the real length of received data.

 * See the comments of XAxiDma_BdSetLength() for more details. To obtain the

 * actual transfer length, use XAxiDma_BdGetActualLength().

 *

 * @param       BdPtr is the BD to operate on.

 * @param       LengthMask is the Maximum Transfer Length.

 *

 * @return      The length value set in the BD.

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetLength(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetLength(BdPtr, LengthMask)                \

        (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_CTRL_LEN_OFFSET) & \

                LengthMask)

/*****************************************************************************/

/**

 * Set the ID field of the given BD. The ID is an arbitrary piece of data the

 * application can associate with a specific BD.

 *

 * @param       BdPtr is the BD to operate on

 * @param       Id is a 32 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetId(XAxiDma_Bd* BdPtr, void Id)

 *

 *****************************************************************************/

#define XAxiDma_BdSetId(BdPtr, Id)                                      \

        (XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_ID_OFFSET, (u32)(Id)))

/*****************************************************************************/

/**

 * Retrieve the ID field of the given BD previously set with XAxiDma_BdSetId.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetId(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetId(BdPtr) (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_ID_OFFSET))

/*****************************************************************************/

/**

 * Get the BD's buffer address

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetBufAddr(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetBufAddr(BdPtr)                     \

        (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_BUFA_OFFSET))

/*****************************************************************************/

/**

 * Check whether a BD has completed in hardware. This BD has been submitted

 * to hardware. The application can use this function to poll for the

 * completion of the BD.

 *

 * This function may not work if the BD is in cached memory.

 *

 * @param       BdPtr is the BD to check on

 *

 * @return

 *              - 0 if not complete

 *              - XAXIDMA_BD_STS_COMPLETE_MASK if completed, may contain

 *              XAXIDMA_BD_STS_*_ERR_MASK bits.

 *

 * @note

 *              C-style signature:

 *              int XAxiDma_BdHwCompleted(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdHwCompleted(BdPtr)                     \

        (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET) & \

                XAXIDMA_BD_STS_COMPLETE_MASK)

/*****************************************************************************/

/**

 * Get the actual transfer length of a BD. The BD has completed in hw.

 *

 * This function may not work if the BD is in cached memory.

 *

 * @param       BdPtr is the BD to check on

 * @param       LengthMask is the Maximum Transfer Length.

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              int XAxiDma_BdGetActualLength(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetActualLength(BdPtr, LengthMask)      \

        (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET) & \

                LengthMask)

/*****************************************************************************/

/**

 * Set the TID field of the TX BD.

 * Provides a stream identifier and can be used to differentiate between

 * multiple streams of data that are being transferred across the same

 * interface.

 *

 * @param       BdPtr is the BD to operate on

 * @param       TId is a 8 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetTId(XAxiDma_Bd* BdPtr, void TId)

 *

 *****************************************************************************/

#define XAxiDma_BdSetTId(BdPtr, TId) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET) & \

                ~XAXIDMA_BD_TID_FIELD_MASK); \

        val |= ((u32)(TId) << XAXIDMA_BD_TID_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_MCCTL_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the TID field of the RX BD previously set with XAxiDma_BdSetTId.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetTId(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetTId(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET)) &  \

                XAXIDMA_BD_TID_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the TDEST field of the TX BD.

 * Provides coarse routing information for the data stream.

 *

 * @param       BdPtr is the BD to operate on

 * @param       TDest is a 8 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetTDest(XAxiDma_Bd* BdPtr, void TDest)

 *

 *****************************************************************************/

#define XAxiDma_BdSetTDest(BdPtr, TDest) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET) & \

                ~XAXIDMA_BD_TDEST_FIELD_MASK); \

        val |= ((u32)(TDest) << XAXIDMA_BD_TDEST_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_MCCTL_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the TDest field of the RX BD previously set with i

 * XAxiDma_BdSetTDest.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetTDest(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetTDest(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET)) &  \

                XAXIDMA_BD_TDEST_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the TUSER field of the TX BD.

 * User defined sideband signaling.

 *

 * @param       BdPtr is the BD to operate on

 * @param       TUser is a 8 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetTUser(XAxiDma_Bd* BdPtr, void TUser)

 *

 *****************************************************************************/

#define XAxiDma_BdSetTUser(BdPtr, TUser)        \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET) & \

                ~XAXIDMA_BD_TUSER_FIELD_MASK); \

        val |= ((u32)(TUser) << XAXIDMA_BD_TUSER_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_MCCTL_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the TUSER field of the RX BD previously set with

 * XAxiDma_BdSetTUser.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetTUser(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetTUser(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STS_OFFSET)) &  \

                XAXIDMA_BD_TUSER_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the ARCACHE field of the given BD.

 * This signal provides additional information about the cacheable

 * characteristics of the transfer.

 *

 * @param       BdPtr is the BD to operate on

 * @param       ARCache is a 8 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetARCache(XAxiDma_Bd* BdPtr, void ARCache)

 *

 *****************************************************************************/

#define XAxiDma_BdSetARCache(BdPtr, ARCache) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET) & \

                ~XAXIDMA_BD_ARCACHE_FIELD_MASK); \

        val |= ((u32)(ARCache) << XAXIDMA_BD_ARCACHE_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_MCCTL_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the ARCACHE field of the given BD previously set with

 * XAxiDma_BdSetARCache.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetARCache(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetARCache(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET)) &  \

                XAXIDMA_BD_ARCACHE_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the ARUSER field of the given BD.

 * Sideband signals used for user defined information.

 *

 * @param       BdPtr is the BD to operate on

 * @param       ARUser is a 8 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetARUser(XAxiDma_Bd* BdPtr, void ARUser)

 *

 *****************************************************************************/

#define XAxiDma_BdSetARUser(BdPtr, ARUser) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET) & \

                ~XAXIDMA_BD_ARUSER_FIELD_MASK); \

        val |= ((u32)(ARUser) << XAXIDMA_BD_ARUSER_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_MCCTL_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the ARUSER field of the given BD previously set with

 * XAxiDma_BdSetARUser.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetARUser(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetARUser(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_MCCTL_OFFSET)) &  \

                XAXIDMA_BD_ARUSER_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the STRIDE field of the given BD.

 * It is the address distance between the first address of successive

 * horizontal reads.

 *

 * @param       BdPtr is the BD to operate on

 * @param       Stride is a 32 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetStride(XAxiDma_Bd* BdPtr, void Stride)

 *

 *****************************************************************************/

#define XAxiDma_BdSetStride(BdPtr, Stride) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET) & \

                ~XAXIDMA_BD_STRIDE_FIELD_MASK); \

        val |= ((u32)(Stride) << XAXIDMA_BD_STRIDE_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the STRIDE field of the given BD previously set with

 * XAxiDma_BdSetStride.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetStride(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetStride(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET)) &  \

                XAXIDMA_BD_STRIDE_FIELD_MASK)

/*****************************************************************************/

/**

 * Set the VSIZE field of the given BD.

 * Number of horizontal lines for strided access.

 *

 * @param       BdPtr is the BD to operate on

 * @param       VSize is a 32 bit quantity to set in the BD

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              void XAxiDma_BdSetVSize(XAxiDma_Bd* BdPtr, void VSize)

 *

 *****************************************************************************/

#define XAxiDma_BdSetVSize(BdPtr, VSize) \

{ \

        u32 val; \

        val = (XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET) & \

                ~XAXIDMA_BD_VSIZE_FIELD_MASK); \

        val |= ((u32)(VSize) << XAXIDMA_BD_VSIZE_FIELD_SHIFT); \

        XAxiDma_BdWrite((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET, val); \

}

/*****************************************************************************/

/**

 * Retrieve the STRIDE field of the given BD previously set with

 * XAxiDma_BdSetVSize.

 *

 * @param       BdPtr is the BD to operate on

 *

 * @return      None

 *

 * @note

 *              C-style signature:

 *              u32 XAxiDma_BdGetVSize(XAxiDma_Bd* BdPtr)

 *

 *****************************************************************************/

#define XAxiDma_BdGetVSize(BdPtr) \

        ((XAxiDma_BdRead((BdPtr), XAXIDMA_BD_STRIDE_VSIZE_OFFSET)) &  \

                XAXIDMA_BD_VSIZE_FIELD_MASK)

/*****************************************************************************/

/************************** Function Prototypes ******************************/

int XAxiDma_BdSetLength(XAxiDma_Bd* BdPtr, u32 LenBytes, u32 LengthMask);

u32 XAxiDma_BdSetBufAddr(XAxiDma_Bd* BdPtr, UINTPTR Addr);

u32 XAxiDma_BdSetBufAddrMicroMode(XAxiDma_Bd* BdPtr, UINTPTR Addr);

int XAxiDma_BdSetAppWord(XAxiDma_Bd * BdPtr, int Offset, u32 Word);

u32 XAxiDma_BdGetAppWord(XAxiDma_Bd * BdPtr, int Offset, int *Valid);

void XAxiDma_BdSetCtrl(XAxiDma_Bd *BdPtr, u32 Data);

/* Debug utility

 */

void XAxiDma_DumpBd(XAxiDma_Bd* BdPtr);

#ifdef __cplusplus

}

#endif

#endif /* end of protection macro */

/** @} */