xuartns550_i.h

powerpc405下linux的串口驱动程序

/* $Id: xuartns550_i.h,v 1.1 2006/02/17 22:43:40 moleres Exp $ */
/*****************************************************************************
*
*       XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
*       AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
*       SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
*       OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
*       APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
*       THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
*       AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
*       FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
*       WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
*       IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
*       REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
*       INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
*       FOR A PARTICULAR PURPOSE.
*
*       (c) Copyright 2002 Xilinx Inc.
*       All rights reserved.
*
*****************************************************************************/
/****************************************************************************/
/**
*
* @file xuartns550_i.h
*
* This header file contains internal identifiers, which are those shared
* between the files of the driver. It is intended for internal use only.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver   Who  Date     Changes
* ----- ---- -------- -----------------------------------------------
* 1.00a ecm  08/16/01 First release
* 1.00b jhl  03/11/02 Repartitioned driver for smaller files.
* </pre>
*
******************************************************************************/

#ifndef XUARTNS550_I_H /* prevent circular inclusions */
#define XUARTNS550_I_H /* by using protection macros */

#ifdef __cplusplus
extern "C" {
#endif

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

#include "xuartns550.h"

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


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


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


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


/****************************************************************************
*
* This macro updates the status based upon a specified line status register
* value. The stats that are updated are based upon bits in this register. It
* also keeps the last errors instance variable updated. The purpose of this
* macro is to allow common processing between the modules of the component
* with less overhead than a function in the required module.
*
* @param    InstancePtr is a pointer to the XUartNs550 instance to be worked on.
* @param    CurrentLsr contains the Line Status Register value to be used for
*           the update.
*
* @return
*
* None.
*
* @note
*
* Signature:
* void XUartNs550_mUpdateStats(XUartNs550 *InstancePtr, Xuint8 CurrentLsr)
*
*****************************************************************************/
#define XUartNs550_mUpdateStats(InstancePtr, CurrentLsr)                \
{                                                                       \
    InstancePtr->LastErrors |= CurrentLsr;                              \
                                                                        \
    if (CurrentLsr & XUN_LSR_OVERRUN_ERROR)                             \
    {                                                                   \
        InstancePtr->Stats.ReceiveOverrunErrors++;                      \
    }                                                                   \
    if (CurrentLsr & XUN_LSR_PARITY_ERROR)                              \
    {                                                                   \
        InstancePtr->Stats.ReceiveParityErrors++;                       \
    }                                                                   \
    if (CurrentLsr & XUN_LSR_FRAMING_ERROR)                             \
    {                                                                   \
        InstancePtr->Stats.ReceiveFramingErrors++;                      \
    }                                                                   \
    if (CurrentLsr & XUN_LSR_BREAK_INT)                                 \
    {                                                                   \
        InstancePtr->Stats.ReceiveBreakDetected++;                      \
    }                                                                   \
}

/****************************************************************************
*
* This macro clears the statistics of the component instance. The purpose of
* this macro is to allow common processing between the modules of the
* component with less overhead than a function in the required module.
*
* @param    InstancePtr is a pointer to the XUartNs550 instance to be worked on.
*
* @return
*
* None.
*
* @note
*
* Signature: void XUartNs550_mClearStats(XUartNs550 *InstancePtr)
*
*****************************************************************************/
#define XUartNs550_mClearStats(InstancePtr)                             \
{                                                                       \
    InstancePtr->Stats.TransmitInterrupts = 0UL;                        \
    InstancePtr->Stats.ReceiveInterrupts = 0UL;                         \
    InstancePtr->Stats.StatusInterrupts = 0UL;                          \
    InstancePtr->Stats.ModemInterrupts = 0UL;                           \
    InstancePtr->Stats.CharactersTransmitted = 0UL;                     \
    InstancePtr->Stats.CharactersReceived = 0UL;                        \
    InstancePtr->Stats.ReceiveOverrunErrors = 0UL;                      \
    InstancePtr->Stats.ReceiveFramingErrors = 0UL;                      \
    InstancePtr->Stats.ReceiveParityErrors = 0UL;                       \
    InstancePtr->Stats.ReceiveBreakDetected = 0UL;                      \
}

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

XStatus XUartNs550_SetBaudRate(XUartNs550 *InstancePtr, Xuint32 BaudRate);

unsigned int XUartNs550_SendBuffer(XUartNs550 *InstancePtr);

unsigned int XUartNs550_ReceiveBuffer(XUartNs550 *InstancePtr);

/************************** Variable Definitions ****************************/

extern XUartNs550_Config XUartNs550_ConfigTable[];

#ifdef __cplusplus
}
#endif

#endif            /* end of protection macro */