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/******************************************************************************
**  FILE        : gponOnuIsr.c                                               **
**                                                                           **
**  DESCRIPTION : This file implements ONU GPON Interrupt handling           **
*******************************************************************************
*                                                                             *                              
*  MODIFICATION HISTORY:                                                      *
*                                                                             *
*   29Oct06  Oren Ben Hayun   created                                         *  
* =========================================================================== *      
******************************************************************************/

/* Include Files
------------------------------------------------------------------------------*/
#include "gponOnuHeader.h"

/* Local Constant
------------------------------------------------------------------------------*/                                               
#define __FILE_DESC__ "mv_pon/core/gpon/gponOnuIsr.c"

#define MV_NO_XVR_RST (0xFF)

/* Global Variables
------------------------------------------------------------------------------*/
extern spinlock_t onuPonIrqLock;

/* Local Variables
------------------------------------------------------------------------------*/
MV_U32               g_onuGponPreviousInterrupt = ONU_GPON_INT_ALARMS;
MV_U32               g_onuGponCurrentInterrupt = 0;
S_OnuGponIsrCounters g_onuGponIsrCounters;
MV_BOOL              g_ponDebugMode = MV_FALSE;

/* Export Functions
------------------------------------------------------------------------------*/

/* Local Functions
------------------------------------------------------------------------------*/
MV_STATUS onuGponIsrXvrReset(void);

/******************************************************************************/
/* ========================================================================== */
/*                         Operational Section                                */
/* ========================================================================== */
/******************************************************************************/

/*******************************************************************************
**
**  onuGponIsrInit
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function reset onu interrupt counters 
**               
**  PARAMETERS:  None 
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK 
**                   
*******************************************************************************/
MV_STATUS onuGponIsrInit(void)
{
  MV_U32 i;

  g_onuGponIsrCounters.interruptReadError = 0;
  g_onuGponIsrCounters.ploamStatusNoInterrupt = 0;
  for (i = 0; i < ONU_GPON_ISR_TYPE_MAX ; i++)
  {
    g_onuGponIsrCounters.sendMessageError[i] = 0;
    g_onuGponIsrCounters.setEventError[i] = 0;
  }
  for (i = 0; i < ON_GPON_MAX_ALARMS ; i++)
  {
    g_onuGponIsrCounters.interruptSameStatus[i] = 0;
  }

  return(MV_OK);
}

#ifndef PON_FPGA
/*******************************************************************************
**
**  onuGponIsrXvrResetTimerHndl
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function is called by the GPON Interrupt handler to execute 
**               XVR reset sequence in case of a problem with XVR signal detect
**               
**  PARAMETERS:  unsigned long data
**
**  OUTPUTS:     None
**
**  RETURNS:     None 
**                   
*******************************************************************************/
void onuGponIsrXvrResetTimerHndl(unsigned long data)
{
  MV_STATUS status;
  unsigned long flags;

  spin_lock_irqsave(&onuPonIrqLock, flags);

  onuPonResourceTbl_s.onuPonIsrXvrRstTimerId.onuPonTimerActive = ONU_PON_TIMER_NOT_ACTIVE;

  status = onuGponIsrXvrReset();
  if (status != MV_NO_XVR_RST) 
  {
	if ((onuPonResourceTbl_s.onuPonIsrXvrRstTimerId.onuPonTimerPeriodic) != 0) 
	  onuPonTimerEnable(&(onuPonResourceTbl_s.onuPonIsrXvrRstTimerId));
  }
  else
  {
    onuPonTimerDisable(&(onuPonResourceTbl_s.onuPonIsrXvrRstTimerId));
  }
  
  spin_unlock_irqrestore(&onuPonIrqLock, flags);
}

/*******************************************************************************
**
**  onuGponDgIsrRoutine
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function implements Dying Gasp 
**               
**  PARAMETERS:  None
**
**  OUTPUTS:     None
**
**  RETURNS:     None
**                   
*******************************************************************************/
void onuGponDgIsrRoutine(void)
{
  onuGponPonMngIntrDgHandler();
}
#endif /* PON_FPGA */

/*******************************************************************************
**
**  onuGponIsrLowRoutine
**  onuGponIsrRoutine
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function implements interrupt polling mode, it polls the 
**               current status of an interrupt compare it to the previous 
**               status, and if an interrupt is active trigger the operation 
**               of the pon manager task.
**               
**  PARAMETERS:  None, void* param 
**
**  OUTPUTS:     None
**
**  RETURNS:     None, void* 
**                   
*******************************************************************************/

/*******************************************************************************
**
**  onuGponIsrLowRoutine
**                   
*******************************************************************************/
void onuGponIsrLowRoutine(MV_U32 *interruptEvent, MV_U32 *interruptStatus)
{
  MV_U32 interrupt;
  MV_U32 interruptRawEvent;
  MV_U32 bip8InterruptValue;
#ifdef MV_GPON_PERFORMANCE_CHECK
  S_GponPerformanceCheckNode *tmpPmCheckNode;
#endif /* MV_GPON_PERFORMANCE_CHECK */


#ifdef MV_GPON_PERFORMANCE_CHECK
  tmpPmCheckNode = &(g_GponPmCheck.pmCheckNode[PON_ISR_PERFORMANCE]);
  asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, 
                             &(tmpPmCheckNode->uSecCntStart[tmpPmCheckNode->uSecCntIdx]), 0);
#endif /* MV_GPON_PERFORMANCE_CHECK */

  mvOnuGponMacPonInterruptGet(&interrupt);
  g_onuGponCurrentInterrupt &= 0xFFFF0000;
  g_onuGponCurrentInterrupt |= interrupt;

  interruptRawEvent = (g_onuGponCurrentInterrupt >> ONU_GPON_EVENT_SHIFT) & 
                                                 ONU_GPON_INTERRUPTS;
  
  if (interruptRawEvent & ONU_GPON_BIP_INERVAL_MASK)
  {  
    mvOnuGponMacBipInterruptStatusValueGet(&bip8InterruptValue);
    onuGponDbBipInterruptStatusValueSet(bip8InterruptValue);
  }

  *interruptEvent  = (g_onuGponCurrentInterrupt >> ONU_GPON_EVENT_SHIFT) & ONU_GPON_INTERRUPTS;
  *interruptStatus = (g_onuGponCurrentInterrupt                        ) & ONU_GPON_INTERRUPTS;

  onuGponSyncLog(ONU_GPON_LOG_INTERRUPT, g_onuGponCurrentInterrupt, 0, 0);

  g_onuGponCurrentInterrupt = 0;

#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 */

}

/*******************************************************************************
**
**  onuGponIsrRoutine
**                   
*******************************************************************************/
void onuGponIsrRoutine(MV_U32 event, MV_U32 status)
{
  MV_BOOL state;
  MV_U32 interruptEvent;
  MV_U32 interruptStatus;
#ifdef MV_GPON_DEBUG_PRINT
  MV_U32 timer = 0;
#endif

#ifdef MV_GPON_HW_INTERRUPT
  onuGponIsrLowRoutine(&interruptEvent, &interruptStatus);
#else
  interruptEvent  = event; 
  interruptStatus = status;
#endif /* MV_GPON_HW_INTERRUPT */

  if (g_ponDebugMode != MV_TRUE)
  {
#ifdef MV_GPON_DEBUG_PRINT
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, &timer, 0);
    mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
               "DEBUG: (%s:%d) Event(0x%08x) Status(0x%08x) timestamp(%d)\n", 
               __FILE_DESC__, __LINE__, interruptEvent, interruptStatus, timer); 
#endif

    if (interruptEvent & ONU_GPON_XVR_SIGNAL_DETECT_STATUS_MASK)
    {
        state = ponXvrFunc(interruptStatus, ONU_GPON_XVR_SIGNAL_DETECT_STATUS_MASK);

	  if (state == MV_TRUE) {
		onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LOS_ALARM, MV_FALSE);
		/* Set signal detect to ON */
		onuGponDbOnuSignalDetectSet(1);

#ifdef MV_GPON_DEBUG_PRINT
		mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE,
			   "DEBUG: (%s:%d) Set signal detect to ON = 1 \n", __FILE_DESC__, __LINE__);
#endif /* MV_GPON_DEBUG_PRINT */
#ifndef PON_FPGA
		onuGponIsrXvrReset();
		onuGponIsrXvrResetStateSet(MV_TRUE);
#endif /* PON_FPGA */
	  }
	  else if (state == MV_FALSE)
	  {
		onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LOS_ALARM, MV_TRUE);
		/* Set signal detect to OFF */
		onuGponDbOnuSignalDetectSet(0);

#ifdef MV_GPON_DEBUG_PRINT
		mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE,
			   "DEBUG: (%s:%d) Set signal detect to OFF = 0\n", __FILE_DESC__, __LINE__);
#endif /* MV_GPON_DEBUG_PRINT */
	  }

	  onuGponSyncLog(ONU_GPON_LOG_INTERRUPT_XVR_SD, state, 0, 0);
    }
    
    if (interruptEvent & ONU_GPON_LOS_ALARM_MASK)
    {
     // state = (interruptStatus & ONU_GPON_LOS_ALARM_MASK) ? MV_TRUE : MV_FALSE;
     // onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LOS_ALARM, state);
    }

    if (interruptEvent & ONU_GPON_LOF_ALARM_MASK)
    {
      state = (interruptStatus & ONU_GPON_LOF_ALARM_MASK) ? MV_TRUE : MV_FALSE;
	  if ((ONU_GPON_XVR_SD_LOW_ACTIVE == onuGponDbXvrSdPolarityGet()) &&
	  (state != MV_TRUE)) {
            onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LOS_ALARM, MV_FALSE);
            /* Set signal detect to ON */
            onuGponDbOnuSignalDetectSet(1);

#ifdef MV_GPON_DEBUG_PRINT
            mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE,
                        "DEBUG: (%s:%d) Set signal detect to ON = 1 \n", __FILE_DESC__, __LINE__);
#endif /* MV_GPON_DEBUG_PRINT */
#ifndef PON_FPGA
            onuGponIsrXvrReset();
            onuGponIsrXvrResetStateSet(MV_TRUE);
            //onuGponPonMngIntrMessageHandler();
#endif /* PON_FPGA */
      }
      onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LOF_ALARM, state);

      onuGponSyncLog(ONU_GPON_LOG_INTERRUPT_LOF, state, 0, 0);

	 // if (state == MV_TRUE) 
	 // {
  	 //   /* Set DS Sync Ind to OFF */
	 //   //onuGponDbOnuDsSyncOnSet(0);
	 // }
	 // else if (state == MV_FALSE)
	 // {
	 //   /* Set DS Sync Ind  to ON */
	 //   //onuGponDbOnuDsSyncOnSet(1);
	 // }
     if (state != MV_TRUE) 
        onuGponPonMngIntrMessageHandler();
    }

    if (interruptEvent & ONU_GPON_LCDG_ALARM_MASK)
    {
     // state = (interruptStatus & ONU_GPON_LCDG_ALARM_MASK) ? MV_TRUE : MV_FALSE;
     // onuGponPonMngIntrAlarmHandler(ONU_PON_MNGR_LCDG_ALARM, state);
    }

    if (interruptEvent & ONU_GPON_DS_PLOAM_MASK)
    {
      onuGponPonMngIntrMessageHandler();
    }

    if (interruptEvent & ONU_GPON_BIP_INERVAL_MASK)
    {
      onuGponPonMngIntrBeCounterHandler();
    }

    if (interruptEvent & ONU_GPON_RAM_TEST_GRX_PARITY_ERR_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }

    if (interruptEvent & ONU_GPON_RAM_TEST_GEM_PARITY_ERR_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }

    if (interruptEvent & ONU_GPON_RAM_TEST_GTX_PARITY_ERR_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }

    if (interruptEvent & ONU_GPON_RAM_TEST_UTM_PARITY_ERR_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }

    if (interruptEvent & ONU_GPON_PHY_READY_STATUS_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE, 
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }

    if (interruptEvent & ONU_GPON_PHY_SIGNAL_DETECT_STATUS_MASK)
    {
#ifdef MV_GPON_DEBUG_PRINT
      mvPonPrint(PON_PRINT_DEBUG, PON_ISR_MODULE,
                 "DEBUG: (%s:%d) Event 0x%x - Not supported\n", __FILE_DESC__, __LINE__, interruptEvent);
#endif /* MV_GPON_DEBUG_PRINT */
    }
  }
}

/*******************************************************************************
**
**  onuGponPonMngDebugModeSet
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function configure onu debug mode
**               
**  PARAMETERS:  MV_BOOL mode 
**
**  OUTPUTS:     None
**
**  RETURNS:     None  
**
*******************************************************************************/
void onuGponPonMngDebugModeSet(MV_BOOL mode)
{
  g_ponDebugMode = mode;
}

/*******************************************************************************
**
**  onuGponPonMngDebugModeGet
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function returns onu debug mode
**               
**  PARAMETERS:  None  
**
**  OUTPUTS:     None
**
**  RETURNS:     Debug mode   
**
*******************************************************************************/
MV_BOOL onuGponPonMngDebugModeGet(void)
{
  return(g_ponDebugMode);
}

#ifndef PON_FPGA
/*******************************************************************************
**
**  onuGponIsrXvrReset
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function reset xvr
**               
**  PARAMETERS:  None
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK or error    
**
*******************************************************************************/
MV_STATUS onuGponIsrXvrReset(void)
{
  MV_STATUS status;
  MV_U32    onuState;
  MV_U32    initDone;
  MV_U32    durationStart = 0;
  MV_U32    durationEnd   = 0;


  onuState = onuGponDbOnuStateGet();
  if ((onuState == ONU_GPON_01_INIT) ||
     ((onuState == ONU_GPON_07_EMERGANCY_STOP) && (onuGponAsicAlarmStatusGet() == ONU_GPON_ALARM_ON)) ||
     ((onuState == ONU_GPON_06_POPUP)          && ((onuGponAlarmGet(ONU_GPON_ALARM_LOS) == ONU_GPON_ALARM_OFF) &&
                                                   (onuGponAlarmGet(ONU_GPON_ALARM_LOF) == ONU_GPON_ALARM_ON))))
  {
    asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, &durationStart, 0);
    onuGponSyncLog(ONU_GPON_LOG_INTERRUPT_SERDES_START, 0, 0, 0);

    status  = asicOntMiscRegWrite(mvAsicReg_PON_SERDES_PHY_CTRL_0_RX_INIT, 0x1, 0);  
    if (status != MV_OK) 
      return(status);

    do 
    {
      status  = asicOntMiscRegRead(mvAsicReg_PON_SERDES_PHY_CTRL_0_INIT_DONE, &initDone, 0);  
      if (status != MV_OK) 
        return(status);

      asicOntGlbRegReadNoCheck(mvAsicReg_GPON_GEN_MICRO_SEC_CNT, &durationEnd, 0);
      if (abs((durationEnd - durationStart)) >= 6000)
	      return (MV_OK);

    } while (initDone == 0);

    status  = asicOntMiscRegWrite(mvAsicReg_PON_SERDES_PHY_CTRL_0_RX_INIT, 0x0, 0);  
    if (status != MV_OK) 
      return(status);

    onuGponSyncLog(ONU_GPON_LOG_INTERRUPT_SERDES_STOP, 0, 0, 0);
  }
  else
  {
	return(MV_NO_XVR_RST);
  }

  return (MV_OK);
}

/*******************************************************************************
**
**  onuGponIsrXvrResetStateSet
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function enable / disable onu xvr reset timer
**               
**  PARAMETERS:  MV_BOOL mode 
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK or error    
**
*******************************************************************************/
MV_STATUS onuGponIsrXvrResetStateSet(MV_BOOL mode)
{
  MV_STATUS rcode = MV_OK;

  if (mode == MV_TRUE)
  {
    onuPonTimerEnable(&(onuPonResourceTbl_s.onuPonIsrXvrRstTimerId));
  }
  else
  {
    onuPonTimerDisable(&(onuPonResourceTbl_s.onuPonIsrXvrRstTimerId));
  }

  return (rcode);
}
#endif /* PON_FPGA */