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/******************************************************************************
**  FILE        : gponOnuMngr.c                                              **
**                                                                           **
**  DESCRIPTION : This file implements ONU GPON Manager functionality        **
*******************************************************************************
*                                                                             *                              
*  MODIFICATION HISTORY:                                                      *
*                                                                             *
*   29Oct06  Oren Ben Hayun   created                                         *  
* =========================================================================== *      
******************************************************************************/

/* Include Files
------------------------------------------------------------------------------*/
#include "gponOnuHeader.h"

/* Local Constant
------------------------------------------------------------------------------*/      
#define __FILE_DESC__ "mv_pon/core/gpon/gponOnuMngr.c"

/* Global Variables
------------------------------------------------------------------------------*/
MV_U32  g_mngrSuspiciousFifoErrCounter = 0;
MV_U32  g_mngrDecidedFifoErrCounter    = 0;

MV_U8 *dsPloamText[MAC_LAST_DOWNSTREAM_PLOAM + 1] = 
{ "UNKNOWN",
  "UPSTREAM OVERHEAD",  
  "SERIAL_NUMBER MASK",
  "ASSIGN ONU ID",      
  "RANGING TIME",
  "DEACTIVATE ONU ID",  
  "DISABLE SERIAL NUMBER",
  "CONFIGURE VP/VC",    
  "ENCRYPTED PORT-ID/VPI",
  "REQUEST PASSWORD",   
  "ASSIGN ALLOC ID",
  "NO MESSAGE",         
  "POPUP",
  "REQUEST KEY",        
  "CONFIGURE PORT-ID",
  "PEE",                
  "CHANGE POWER LEVEL",
  "PST MESSAGE",        
  "BER INTERVAL",
  "KEY SWITCHING TIME", 
  "EXTENDED BURST LENGTH"
};

extern spinlock_t onuPonIrqLock;

/* Local Variables
------------------------------------------------------------------------------*/

/* Export Functions
------------------------------------------------------------------------------*/

/* Local Functions
------------------------------------------------------------------------------*/

/******************************************************************************/
/* ========================================================================== */
/*                         Operational Section                                */
/* ========================================================================== */
/******************************************************************************/

/*******************************************************************************
**
**  onuGponPonMngIntrAlarmHandler
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function implements the pon manager interrupt alarm 
**               functionality 
**               - handle alarms (LOS, LOF, and LCDG)
**               
**  PARAMETERS:  MV_U32 alarm    
**               MV_U32 alarmStatus
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponPonMngIntrAlarmHandler(MV_U32 alarm, MV_BOOL alarmStatus)
{
  MV_U32          onuState;
  MV_U32          alarmIndex;
  MV_U32          alarmEvent;
  GPONFUNCPTR     ptrFunc;
  S_OnuGponGenTbl *onuGponGenTbl_p;
  MV_U32          eventBase;

  /* Events State Machine Table */
  onuGponGenTbl_p = &(onuGponDb_s.onuGponGenTbl_s);

  /* get onu state */
  onuState = onuGponDbOnuStateGet();

  /* Get the Alarm Index in the Event Table */
  switch (alarm)
  {
  case ONU_PON_MNGR_LOS_ALARM:
    alarmIndex = ONU_GPON_ALARM_LOS;
    alarmEvent = ONU_GPON_EVENT_ALARM_LOS;
    break;
  case ONU_PON_MNGR_LOF_ALARM: 
    alarmIndex = ONU_GPON_ALARM_LOF;
    alarmEvent = ONU_GPON_EVENT_ALARM_LOF;
    break;
  case ONU_PON_MNGR_LCDG_ALARM:
    alarmIndex = ONU_GPON_ALARM_LCDG;
    alarmEvent = ONU_GPON_EVENT_ALARM_LCDG;
    break;
  default:
    mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
               "ERROR: (%s:%d) Unkown Alarm Type, alarm(%d), status(%d)\n", 
               __FILE_DESC__, __LINE__, alarm, alarmStatus);
    return;
  }

  /* Get the Base Enum in the Event Table */
  eventBase = (alarmStatus == MV_TRUE) ? ONU_GPON_ALARM_GEN_BASE : ONU_GPON_ALARM_CAN_BASE;

  /* handle alarm deactivation */
  ptrFunc = onuGponGenTbl_p->onuGponStateAndEventTbl[eventBase + alarmEvent][onuState];
  if (ptrFunc == NULL)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
               "ERROR: (%s:%d) Cancel alarm - function is NULL, alarm(%d), status(%d)\n", 
               __FILE_DESC__, __LINE__, alarm, alarmStatus);
  }
  else
  {
    (*ptrFunc)(alarmIndex, 0, NULL);
  }
}

/*******************************************************************************
**
**  onuGponPonMngIntrMessageHandler
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function implements the pon manager interrupt message 
**               functionality 
**               
**  PARAMETERS:  None    
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponPonMngIntrMessageHandler(void)
{
  MV_STATUS     rcode;
  MV_U32        ploamFifoSize;
  static MV_U32 ploamErrorCounter = 0;
  MV_U32        i;
  MV_U32        dummyBuffer;
  MV_U8         msgData[12];
  MV_U8         msgOnuId;
  MV_U8         msgId;
  MV_BOOL       onuValid;

#ifdef MV_GPON_PERFORMANCE_CHECK
  S_GponPerformanceCheckNode *tmpPmCheckNode = &(g_GponPmCheck.pmCheckNode[PON_MNG1_PERFORMANCE]);

  asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStart[tmpPmCheckNode->uSecCntIdx]), 0);
#endif /* MV_GPON_PERFORMANCE_CHECK */

  /* Get the Init value of the ONU (if it MV_FALSE - not Valid yet) */
  onuValid = onuGponDbInitGet();

  /* read fifo size */
  rcode = mvOnuGponMacRxPloamDataUsedGet(&ploamFifoSize);
  if (rcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
               "ERROR: (%s:%d) Read ploam message fifo size\n", __FILE_DESC__, __LINE__);
    return;
  }

#ifdef MV_GPON_DEBUG_PRINT
  mvPonPrint(PON_PRINT_DEBUG, PON_MNG_MODULE,
             "DEBUG: (%s:%d) PLOAM FIFO Used (%d) words\n", __FILE_DESC__, __LINE__, ploamFifoSize);
#endif /* MV_GPON_DEBUG_PRINT */

#ifdef MV_GPON_PERFORMANCE_CHECK
  asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                           &(tmpPmCheckNode->uSecCntStop[tmpPmCheckNode->uSecCntIdx]), 0);
  if(tmpPmCheckNode->uSecCntIdx < 255) tmpPmCheckNode->uSecCntIdx++;
#endif /* MV_GPON_PERFORMANCE_CHECK */

  /* there is at least one full ploam message in the fifo */
  while (ploamFifoSize >= 3)
  {
#ifdef MV_GPON_PERFORMANCE_CHECK
    tmpPmCheckNode = &(g_GponPmCheck.pmCheckNode[PON_MNG2_PERFORMANCE]);
   
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStart[tmpPmCheckNode->uSecCntIdx]), 0);
#endif /* MV_GPON_PERFORMANCE_CHECK */

    /* clear received message content */
    memset((void*)msgData, 0, sizeof (msgData));

    /* read message from fifo */
    rcode = mvOnuGponMacMessageReceive(&msgOnuId, &msgId, msgData);
    if (rcode != MV_OK)
    {
      mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
                 "ERROR: (%s:%d) Read ploam message\n", __FILE_DESC__, __LINE__);
      return;     
    }

#ifdef MV_GPON_DEBUG_PRINT
    mvPonPrint(PON_PRINT_DEBUG, PON_MNG_MODULE,
               "[DS PLOAM] %s, onuId(%d), msgId(%d), msg[%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x]\n",
               dsPloamText[(msgId > 20) ? 0 : msgId], msgOnuId, msgId, 
               msgData[0], msgData[1], msgData[2], msgData[3], msgData[4], 
               msgData[5], msgData[6], msgData[7], msgData[8], msgData[9]);
#endif /* MV_GPON_DEBUG_PRINT */

    onuGponPmRxSwCountersAdd(msgId);

#ifdef MV_GPON_PERFORMANCE_CHECK
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStop[tmpPmCheckNode->uSecCntIdx]), 0);
    if(tmpPmCheckNode->uSecCntIdx < 255) tmpPmCheckNode->uSecCntIdx++;
#endif /* MV_GPON_PERFORMANCE_CHECK */

    /* If ONU wasn't init ONU will receive Downstream PLOAMs but won't handle it */
    if (onuValid != MV_FALSE)
    {
      onuGponPonMngPloamProcess(msgOnuId, msgId, msgData);  
    }

#ifdef MV_GPON_PERFORMANCE_CHECK
    tmpPmCheckNode = &(g_GponPmCheck.pmCheckNode[PON_MNG3_PERFORMANCE]);
   
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStart[tmpPmCheckNode->uSecCntIdx]), 0);
#endif /* MV_GPON_PERFORMANCE_CHECK */

    /* Check first if there are any complete message in FIFO */
    rcode = mvOnuGponMacRxPloamDataUsedGet(&ploamFifoSize);
    if (rcode != MV_OK)
    {
      mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
                 "ERROR: (%s:%d) Read ploam message\n", __FILE_DESC__, __LINE__);
      return;
    }

#ifdef MV_GPON_PERFORMANCE_CHECK
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStop[tmpPmCheckNode->uSecCntIdx]), 0);
    if(tmpPmCheckNode->uSecCntIdx < 255) tmpPmCheckNode->uSecCntIdx++;
#endif /* MV_GPON_PERFORMANCE_CHECK */

  } /* while */

  /* Clean FIFO if it lost alignment */
  if ((ploamFifoSize > 0) && (ploamFifoSize < 3))
  {
    ploamErrorCounter++;
    g_mngrSuspiciousFifoErrCounter++;
    if (ploamErrorCounter == 3)
    {
      g_mngrDecidedFifoErrCounter++;
      for (i = 0; i < ploamFifoSize; i++)
      {
        mvOnuGponMacRxPloamDataGet(&dummyBuffer);
      }
    }
  }
  else
    ploamErrorCounter = 0;
}

/*******************************************************************************
**
**  onuGponPonMngPloamProcess
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function Hadnle single received PLAOM message
**               
**  PARAMETERS:  MV_U8 onuId
**               MV_U8 msgId
**               MV_U8 *msgData    
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponPonMngPloamProcess(MV_U8 onuId, MV_U8 msgId, MV_U8 *msgData)
{
  MV_U32          appOnuId;
  MV_U32          onuState;
  GPONFUNCPTR     ptrFunc;
  S_OnuGponGenTbl *onuGponGenTbl_p = &(onuGponDb_s.onuGponGenTbl_s);
  MV_U32          *msgData_p = (MV_U32*)msgData;

  /* get onu Id */
  appOnuId = onuGponDbOnuIdGet();

  /* get onu state */
  onuState = onuGponDbOnuStateGet();

  /* Filter for messages with invalid ONU Id */
  if ((onuId == ONU_GPON_BROADCAST_ONU_ID) || (onuId == appOnuId))
  {
    /* Handle valid messages */
    if ((msgId >= ONU_GPON_DS_MSG_OVERHEAD) && (msgId <= ONU_GPON_DS_MSG_EXT_BURST_LEN))
    {
      /* Call the relevant event function */
      ptrFunc = (onuGponGenTbl_p->onuGponStateAndEventTbl[(msgId)][onuState]);
      if (ptrFunc == NULL)
      {
        mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
                   "ERROR: (%s:%d) Msg function is NULL, onuId(%d), msgId(%d)\n", 
                   __FILE_DESC__, __LINE__, onuId, msgId);
      }
      else
      {
	onuGponSyncLog(ONU_GPON_LOG_MSG, onuId, msgId, 0);
	onuGponSyncLog(ONU_GPON_LOG_MSG_CONTENT, *(msgData_p), *(msgData_p + 1), *(msgData_p + 2));
        (*ptrFunc)(onuId, msgId, msgData);
      }           

    }
    /* handle invalid messages */
    else
    {
      /* Call the relevant function */
      ptrFunc = (onuGponGenTbl_p->onuGponStateAndEventTbl[ONU_GPON_EVENT_ALM_GEN_MEM][onuState]);
      if (ptrFunc == NULL)
      {
        mvPonPrint(PON_PRINT_ERROR, PON_MNG_MODULE,
                   "ERROR: (%s:%d) Msg function is NULL, onuId(%d), msgId(%d)\n", 
                   __FILE_DESC__, __LINE__, onuId, msgId);
      }
      else
      {
        (*ptrFunc)(ONU_GPON_ALARM_MEM, 0, NULL);
      }           
    } 
  } 
}

/*******************************************************************************
**
**  onuGponPonMngIntrBeCounterHandler
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function implements the pon manager interrupt BER counter 
**               expired functionality 
**               
**  PARAMETERS:  None    
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponPonMngIntrBeCounterHandler(void)
{
  MV_U32 onuState;
  MV_U32 bipErrorsCounter = 0;
  MV_U8  onuId;

  onuState = onuGponDbOnuStateGet();
  onuId    = onuGponDbOnuIdGet();

  if (onuState != ONU_GPON_05_OPERATION)
  {
    return;
  }

  /* Read BIP8 errors counter in MAC */
  bipErrorsCounter = onuGponDbBipInterruptStatusValueGet();
 
  /* Send an upstream REI message */
  mvOnuGponMacReiMessageSend(onuId, bipErrorsCounter);
}

#ifndef PON_FPGA
/*******************************************************************************
**
**  onuGponPonMngIntrDgHandler
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function implements the pon manager interrupt dying gasp  
**               functionality 
**               
**  PARAMETERS:  None    
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponPonMngIntrDgHandler(void)
{
  MV_U8         onuId = onuGponDbOnuIdGet();
  static MV_U32 first_time = 1;
  DYINGGASPFUNC dgCallback;

  mvOnuGponMacDgMessageSend(onuId);

  if (first_time) 
  {
    dgCallback = onuGponDbDgCallbackGet();

    if (dgCallback != NULL) 
    {
        dgCallback();
        first_time = 0;
    }
  }

  onuPonDyingGaspExit();
}
#endif /* PON_FPGA */

/*******************************************************************************
**
**  onuGponPonMngrFifoErrCountersGet
**  ____________________________________________________________________________
**
**  DESCRIPTION:   The function 
**                 
**  PARAMETERS:    None    
**
**  OUTPUTS:       None
**
**  RETURNS:       None 
**
*******************************************************************************/
MV_U32 onuGponPonMngrFifoErrCountersGet(MV_U32 *suspiciousCounter)
{
  MV_U32 suspected;
  MV_U32 decided;

  suspected = g_mngrSuspiciousFifoErrCounter;
  decided = g_mngrDecidedFifoErrCounter;

  g_mngrSuspiciousFifoErrCounter = 0;
  g_mngrDecidedFifoErrCounter = 0;

  *suspiciousCounter = suspected;
  return(decided);
}

/*******************************************************************************
**
**  onuGponTimerFifoAuditHndl
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function is called by the GPON PM timer and trigger the
**               GPON handler to execute SW FIFO Audit
**               
**  PARAMETERS:  unsigned long data
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**
*******************************************************************************/
void onuGponTimerFifoAuditHndl(unsigned long data)
{
  unsigned long flags;
  /* Lock GPON interrupt */
  spin_lock_irqsave(&onuPonIrqLock, flags);

  onuPonResourceTbl_s.onuPonSwFIFOTimerId.onuPonTimerActive = ONU_PON_TIMER_NOT_ACTIVE;

  /* Call PM handler */
  mvOnuGponFifoAuditTimerExpireHndl();

  if ((onuPonResourceTbl_s.onuPonSwFIFOTimerId.onuPonTimerPeriodic) != 0) 
    onuPonTimerEnable(&(onuPonResourceTbl_s.onuPonSwFIFOTimerId));

  /* Unlock GPON interrupt */
  spin_unlock_irqrestore(&onuPonIrqLock, flags);
}