cisaironethw.c

vworks 下wlan的实现代码

    INT32         numBytes  /* Number of bytes */
    )
    {
    /* enable Access to the Rid */
    if ( cisAironetHwRidAccess (pWlanDev, rid, ANET_CMD_ACCESS)
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapWrite: error getting write access to RID\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }

    /* Enable access to the desired BAP (BAP0 or BAP1) */
    if ( cisAironetHwBapSetup (pWlanDev, rid, offset, bap) 
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapWrite: error Accessing BAP\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }

    /* Write to the Bap */
    if (cisAironetHwBapWrite (pWlanDev, pSrc, numBytes, bap) 
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapWrite: error writing data to RID\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }
    
    /* Commit data */
    return ( cisAironetHwRidAccess (pWlanDev, rid, ANET_WRITE_RID) );
    }

/***************************************************************************
* bapRead - Reads data from a buffer access path.
* 
* This routine performs all the required initialization so the the user can 
* tranparently access the desired BAP..
* 
* RETURNS : OK or ERROR if a NULL pointer is passed in or if required BAP 
*           init fails.     
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*/

LOCAL STATUS bapRead
    (
    CARD_CTRL_T * pWlanDev,  /* Driver control object */
    UINT16        rid,      /* RID to access */
    UINT32        offset,   /* The offset into RID */
    UINT16        bap,      /* BAP to access (0 or 1) */
    UINT16 *      pDst,     /* Destination buffer */ 
    INT32         numBytes  /* Number of bytes */
    )
    {
    /* enable Access to the Rid */
    if ( cisAironetHwRidAccess (pWlanDev, rid, ANET_CMD_ACCESS)
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapRead: error getting read access to RID\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }
    
    /* Enable access to the desired BAP (BAP0 or BAP1) */
    if ( cisAironetHwBapSetup (pWlanDev, rid, offset, bap) 
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapRead: error Accessing BAP\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }
    
    /* Read the Bap */
    if ( cisAironetHwBapRead (pWlanDev, pDst, numBytes, bap) 
         == ERROR )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("bapRead: error Reading BAP\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }
    
    return (OK);
    }

/***************************************************************************
* cisAironetHwRidAccess - Issues command to access a RID.
* 
* This routine issues the aironet commmand to enable RID access. It also 
* checks the command response before returning the command status.
* 
* RETURNS : OK or cmd status or ERROR if a NULL pointer is passed in or if 
*           required rid cannot be accessed.
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*/

LOCAL INT16 cisAironetHwRidAccess
    (
    CARD_CTRL_T * pWlanDev,  /* Pointer to device handle */
    UINT16        rid,      /* Rid to access */
    UINT16        cmd
    )
    {
    CARD_RESP_T * pRespObj = NULL;
    CARD_CMD_T *  pCmdObj  = NULL;

    /* Sanity check */
    if (pWlanDev == NULL)
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("cisAironetHwRidAccess: Null pointer\n",
                  1,2,3,4,5,6));
        return (ERROR);
        }

    /* Access to card response regs */
    pRespObj = (CARD_RESP_T *) &pWlanDev->macResp;
    pCmdObj  = (CARD_CMD_T *) &pWlanDev->macCmd;

    /* Issue the command */
    pCmdObj->param0  = rid;
    pCmdObj->param1  = 0;
    pCmdObj->param2  = 0;  
    pCmdObj->command = cmd;
    if (  (cisAironetHwCmdIssue (pWlanDev)   == ERROR) || 
          (cisAironetHwErrorCheck (pWlanDev) != 0) )
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("cisAironetHwRidAccess: error Accessing RID %s\n",
                  (INT32) cisAironetHwErrorDesc (),2,3,4,5,6));
        return (ERROR);
        }

    /* check the response register */
	if ( (pRespObj->resp0 & ANET_STAT_CMD_RESULT) 
         != 0 ) 
        {
        ANET_LOG(DEBUG_ERROR, 
                 ("cisAironetHwRidAccess: we have a problem\n",
                  1,2,3,4,5,6));
		return ( (cmd << 8) + (pRespObj->resp0 & 0xFF) );
        }

    /* return OK */
	return (OK);
    }

/***************************************************************************
* cisAironetHwBapRead - Reads data from the choosen buffer access path.
* 
* This routine copies data from the card via a buffer access path to the 
* buffer pointer that is passed in as a parameter. All accesses are 16 bits
* wide from the card.
*
* RETURNS : OK 
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*/

LOCAL INT16 cisAironetHwBapRead
    (
    CARD_CTRL_T * pWlanDev,
    UINT16 *      pDst,     /* Destination buffer */ 
    UINT32        numBytes, /* Number of bytes */
    UINT32        bap       /* 0-BAP0 and 2-BAP1 */ 
    )
    {
    /* round length up to a 16 bit aligned value */
    numBytes = ROUND_UP(numBytes,2);

    /* Pass the data from the Card into the buffer 
     * Note: each access to DATA0 or DATA1 will auto-increment
     *       the buffer pointer. 
     */
    while (numBytes > 0) 
        {
        *pDst++  = WLAN_IN_16( ((UINT32) &pWlanDev->macReg->data0) + bap); 
        numBytes -= 2;
        }

    /* Status - OK */
    return (OK);
    }

/***************************************************************************
* cisAironetHwBapWrite - Writes data to the choosen buffer access path.
* 
* This routine copies data from the buffer pointer that is passed in as 
* parameter to the card via a buffer access path. All accesses are 16 bits
* wide from the card.
*
* RETURNS : OK 
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*/

LOCAL INT16 cisAironetHwBapWrite
    (
    CARD_CTRL_T * pWlanDev,
    UINT16 *      pSrc,      /* Source buffer */
    UINT32        numBytes,  /* Number of bytes to read */
    UINT32        bap        /* 0-BAP0 and 2-BAP1 */ 
    )
    {
    /* round length up to a 16 bit aligned value */
    numBytes = ROUND_UP(numBytes, 2);
        
    /* Write data the buffer into the Card. 
     * Note: each access to DATA0 or DATA1 will auto-increment
     *       the buffer pointer. 
     */
    while (numBytes > 0) 
        { 
        WLAN_OUT_16( ((UINT32) &pWlanDev->macReg->data0) + bap, *pSrc++);
        numBytes -= 2;
        }

    /* Status - OK */
    return (OK);
    }

/*=========================================================================*/
/*                                                                         */
/*                   CARD REGISTER ACCESS ROUTINES                         */
/*                                                                         */
/*=========================================================================*/

/***************************************************************************
* cisAironetHwEventStatusGet - Returns the contents of the event status register.
* 
* Returns the contents of the event status register.
*
* RETURNS : register contents.
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

UINT16 cisAironetHwEventStatusGet
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    UINT16 linkstatus = WLAN_IN_16( (UINT32) &pWlanDev->macReg->evStat);
    cisAironetHwEventLinkAck(pWlanDev);

    return linkstatus;    
    }

/***************************************************************************
* cisAironetHwLinkStatusGet - Returns the contents of the link status register.
* 
* Returns the contents of the link status register.
*
* RETURNS : register contents.
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

UINT16 cisAironetHwLinkStatusGet
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    UINT16 lnkstatus;
    lnkstatus = WLAN_IN_16( (UINT32) &pWlanDev->macReg->linkStatus);

    cisAironetHwEventLinkAck(pWlanDev);
    return lnkstatus;
    }

/***************************************************************************
* cisAironetHwRxFidGet - Returns the contents of the receive FID register.
* 
* Returns the contents of the receive FID register.
*
* RETURNS : register contents.
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

UINT16 cisAironetHwRxFidGet
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    /* Return rx FID */
    return (WLAN_IN_16( (UINT32) &pWlanDev->macReg->rxFID ));
    }

/***************************************************************************
* cisAironetHwTxComplFidGet - Returns the contents of the tranmit complete
*                             FID register.
* 
* Returns the contents of the transmit complete FID register.
*
* RETURNS : register contents.
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

UINT16 cisAironetHwTxComplFidGet
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    /* Return rx FID */
    return ( WLAN_IN_16( (UINT32) &pWlanDev->macReg->txCompFID) );
    }

/***************************************************************************
* cisAironetHwEventRxAck - Clears the receive event bit in the event ack
*                          register.
* 
* Clears the receive event bit in the event ack register.
*
* RETURNS : N/A
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

void cisAironetHwEventRxAck
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    WLAN_OUT_16( (UINT32) &pWlanDev->macReg->evAck, ANET_EVENT_RX);
    }

/***************************************************************************
* cisAironetHwEventAwakenAck - Clears the awaken event bit in the event 
* ack register.
* 
* Clears the awaken event bit in the event ack register.
*
* RETURNS : N/A
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

void cisAironetHwEventAwakenAck
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    WLAN_OUT_16( (UINT32) &pWlanDev->macReg->evAck, ANET_EVENT_AWAKE);
    }

/***************************************************************************
* cisAironetHwEventTxAck - Clears the transmit event bit in the event 
* ack register.
* 
* Clears the transmit event bit in the event ack register.
*
* RETURNS : N/A
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/

void cisAironetHwEventTxAck
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    WLAN_OUT_16( (UINT32) &pWlanDev->macReg->evAck, 
                 ANET_EVENT_TX | ANET_EVENT_TX_EXC);
    }

/***************************************************************************
* cisAironetHwEventTxAck - Clears the link event bit in the event ack 
* register.
* 
* Clears the link event bit in the event ack register.
*
* RETURNS : N/A
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
* 
* NOMANUAL
*/

void cisAironetHwEventLinkAck
    (
    CARD_CTRL_T * pWlanDev  /* Driver control struct */
    )
    {
    WLAN_OUT_16( (UINT32) &pWlanDev->macReg->evAck, ANET_EVENT_LINK);
    }

/***************************************************************************
* cisAironetHwEventTxAck - Clears the unknown event bit in the event ack 
* register.
* 
* Clears the unknown event bit in the event ack register.
*
* RETURNS : N/A
*
* ERRNO : N/A
*
* SEE ALSO: Cisco Aironet 340/350 Driver Programmer's Manual
*
* NOMANUAL
*/