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/******************************************************************************
**  FILE        : gponOnuLnxKsOs.c                                           **
**                                                                           **
**  DESCRIPTION : This file implements ONU GPON Linux OS handling            **
*******************************************************************************
*                                                                             *                              
*  MODIFICATION HISTORY:                                                      *
*                                                                             *
*   29Oct06  Oren Ben Hayun   created                                         *  
* =========================================================================== *      
******************************************************************************/

/* Include Files
------------------------------------------------------------------------------*/
#include "ponOnuHeader.h"
#include "gponOnuHeader.h"
#ifndef PON_FPGA
#include "mvSysPonConfig.h"
#endif /* PON_FPGA */

/* Local Constant
------------------------------------------------------------------------------*/     
#define __FILE_DESC__ "mv_pon/plat/gpon/gponOnuLnxKsOs.c"

/* Global Variables
------------------------------------------------------------------------------*/
S_onuPonWork      gponTcontCleanWork[8];
S_onuPonWork      gponTcontCleanAllWork;
S_onuPonWork      gponTcontActiveWork[8];
S_onuPonWorkQueue gponTcontFlushWq;

/* Global functions
------------------------------------------------------------------------------*/

/* Local Variables
------------------------------------------------------------------------------*/

/* ========================================================================== */
/* ===========================  ISR SECTION  ================================ */
/* ========================================================================== */
MV_U32 gponCurrentInterruptEvent  = 0;
MV_U32 gponCurrentInterruptStatus = 0;


/* Export Functions
------------------------------------------------------------------------------*/

/* Local Functions
------------------------------------------------------------------------------*/
void        onuGponTaskletFunc(unsigned long dummy);
irqreturn_t onuGponIrqRoutine(int irq, void *arg);
#ifndef PON_FPGA
irqreturn_t onuGponDgIrqRoutine(int irq, void *arg);
#endif /* PON_FPGA */


/*******************************************************************************
**
**  onuPonWqInit
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function allocates GPON work queue and init two work
**  		 structures for TCONT clean and activate
**
**  PARAMETERS:  None
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK or error
**
*******************************************************************************/
MV_STATUS onuPonWqInit(void)
{
  MV_U32 tcontIndex;

  gponTcontFlushWq.ponWq = create_workqueue("gponTcontFlushWQ");
  if (gponTcontFlushWq.ponWq)
  {
    for (tcontIndex = 0; tcontIndex < 8; tcontIndex++)
    {
	    INIT_WORK((struct work_struct *) &gponTcontCleanWork[tcontIndex], onuGponWqTcontFunc);
	    gponTcontCleanWork[tcontIndex].action = TCONT_CLEAN_EVENT;
	    gponTcontCleanWork[tcontIndex].param  = tcontIndex;

	    INIT_WORK((struct work_struct *) &gponTcontActiveWork[tcontIndex], onuGponWqTcontFunc);
	    gponTcontActiveWork[tcontIndex].action = TCONT_ACTIVE_EVENT;
	    gponTcontActiveWork[tcontIndex].param  = tcontIndex;
    }

    INIT_WORK((struct work_struct *) &gponTcontCleanAllWork, onuGponWqTcontFunc);
    gponTcontCleanAllWork.action = TCONT_CLEAN_ALL_EVENT;

    printk("STARTING PON WORK QUEUE!!!!!\n");

    return(MV_OK);
  }

  return(MV_ERROR);
}

/*******************************************************************************
**
**  onuGponRtosResourceInit
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function allocates onu RTOS resources
**               
**  PARAMETERS:  None
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK or error          
**                   
*******************************************************************************/
MV_STATUS onuGponRtosResourceInit(void)
{
  MV_STATUS retcode;

  /* Timer */
  /* ===== */

  /* onu gpon T01 timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuGponT01_TimerId),   /* timer Id */
                               "gpon_T01",                                 /* timer description */
                               (PTIMER_FUNCPTR)onuGponPonMngTimerT01Hndl,  /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_T01_INTERVAL,                 /* init value */ 
                               0);                                         /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon T01 timer create\n", __FILE_DESC__, __LINE__);
    return(retcode);
  }

  /* onu gpon T02 timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuGponT02_TimerId),   /* timer Id */
                               "gpon_T02",                                 /* timer description */
                               (PTIMER_FUNCPTR)onuGponPonMngTimerT02Hndl,  /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_T02_INTERVAL,                 /* init value */ 
                               0);                                         /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon T02 timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  /* onu gpon PEE timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuGponPeeTimerId),    /* timer Id */
                               "gpon_Pee",                                 /* timer description */
                               (PTIMER_FUNCPTR)onuGponPonMngTimerPeeHndl,  /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_PEE_INTERVAL,                 /* init value */ 
                               0);                                         /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon Pee timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

#ifndef PON_FPGA
  /* onu gpon xvr reset timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuPonIsrXvrRstTimerId),    /* timer Id */
                               "gpon_xvr",                                      /* timer description */
                               (PTIMER_FUNCPTR)onuGponIsrXvrResetTimerHndl,     /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                        /* timer active (run) state */
                               ONU_PON_TIMER_XVR_RST_INTERVAL,                  /* init value */ 
                               1);                                              /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon Cvr Reset timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }
#endif /* PON_FPGA */

  /* onu gpon pm timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuPonPmTimerId),      /* timer Id */
                               "gpon_Pm",                                  /* timer description */
                               (PTIMER_FUNCPTR)onuGponPmTimerPmHndl,       /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_PM_INTERVAL,                  /* init value */ 
                               1);                                         /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon PM timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  /* onu gpon Pattern Burst timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuPonPatternBurstTimerId), /* timer Id */
                              "gpon_PatternBurst",                              /* timer description */
                              (PTIMER_FUNCPTR)onuPonPatternBurstTimerHndl,      /* timer function */
                              0,                                                /* timer function param */
                              ONU_PON_TIMER_NOT_ACTIVE ,                        /* init value */ 
                              0);                                               /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_API_MODULE,
               "ERROR: (%s:%d) pon Pattern Burst timer create\n\r", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  /* onu gpon sw fifo timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuPonSwFIFOTimerId),  /* timer Id */
                               "gpon_Fifo",                                /* timer description */
                               (PTIMER_FUNCPTR)onuGponTimerFifoAuditHndl,  /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_FIFO_AUDIT_INTERVAL,          /* init value */ 
                               1);                                         /* periodic value */ 
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon FIFO Audit timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  /* onu pon TX Power timer */
  retcode = onuPonTimerCreate(&(onuPonResourceTbl_s.onuPonTxPwrTimerId),   /* timer Id */
                               "pon_txPwr",                                /* timer description */
                               (PTIMER_FUNCPTR)onuGponTimerTxPwrHndl,      /* timer function */
                               ONU_PON_TIMER_NOT_ACTIVE,                   /* timer active (run) state */
                               ONU_PON_TIMER_TX_PWR_INTERVAL,              /* init value */
                               0);                                         /* periodic value */
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) pon Tx Power timer create\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  /* Work Queue */
  /* ========== */
  retcode = onuPonWqInit();
  if (retcode != MV_OK)
  {
     mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
                "ERROR: (%s:%d) pon work queue create\n", __FILE_DESC__, __LINE__);
     return(MV_ERROR);
  }

  /* Interrupt */
  /* ========= */
  retcode = onuPonIrqInit();
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) gpon interrupt init\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  retcode = onuGponIrqTaskletInit(&(onuPonResourceTbl_s.onuPonIrqId));
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) gpon interrupt tasklet\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  retcode = onuGponIrqRegister(&(onuPonResourceTbl_s.onuPonIrqId));      
  if (retcode != MV_OK)
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) gpon interrupt register\n", __FILE_DESC__, __LINE__);
    return(MV_ERROR);
  }

  return(MV_OK);
}

/*******************************************************************************
**
**  onuGponRtosResourceRelease
**  ____________________________________________________________________________
** 
**  DESCRIPTION: The function release onu RTOS resources
**               
**  PARAMETERS:  None
**
**  OUTPUTS:     None
**
**  RETURNS:     MV_OK or error          
**                   
*******************************************************************************/
MV_STATUS onuGponRtosResourceRelease(void)
{
  del_timer(&(onuPonResourceTbl_s.onuGponT01_TimerId.onuPonTimerId));
  del_timer(&(onuPonResourceTbl_s.onuGponT02_TimerId.onuPonTimerId));
  del_timer(&(onuPonResourceTbl_s.onuGponPeeTimerId.onuPonTimerId));
  del_timer(&(onuPonResourceTbl_s.onuPonSwFIFOTimerId.onuPonTimerId));
  del_timer(&(onuPonResourceTbl_s.onuPonPmTimerId.onuPonTimerId));

  free_irq(onuPonResourceTbl_s.onuPonIrqId.onuPonIrqNum, &(onuPonResourceTbl_s.onuPonIrqId));
#ifndef PON_FPGA
  printk("onuPonResourceTbl_s.onuPonIrqId.onuDgIrqNum, &(onuPonResourceTbl_s.onuPonIrqId\n\r");
  free_irq(onuPonResourceTbl_s.onuPonIrqId.onuDgIrqNum, &(onuPonResourceTbl_s.onuPonIrqId));
#endif /* PON_FPGA */

  tasklet_kill(&(onuPonResourceTbl_s.onuPonIrqId.onuPonTasklet));

  return(MV_OK);
}


/*******************************************************************************
**
**  onuGponIrqTaskletInit
**  ____________________________________________________________________________
**
**  DESCRIPTION: GPON Interrupt tasklet init
**               
**  PARAMETERS:  S_onuPonIrq irqId
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     MV_OK
**
*******************************************************************************/
MV_STATUS onuGponIrqTaskletInit(S_onuPonIrq *irqId)
{
  tasklet_init(&(irqId->onuPonTasklet), onuGponTaskletFunc, (unsigned int)0);

  return(MV_OK);
}

/*******************************************************************************
**
**  onuGponIrqRegister
**  ____________________________________________________________________________
**
**  DESCRIPTION: GPON Interrupt register
**               
**  PARAMETERS:  none
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     GPON Interrupt number
**
*******************************************************************************/
MV_STATUS onuGponIrqRegister(S_onuPonIrq *irqId)
{
  int rcode;

  rcode = request_irq(irqId->onuPonIrqNum, onuGponIrqRoutine, IRQF_DISABLED, "mvGpon", (void*)irqId);
  if (rcode) 
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) gpon interrupt register\n", __FILE_DESC__, __LINE__);
    free_irq(irqId->onuPonIrqNum, NULL);
    return(MV_ERROR);
  }

#ifndef PON_FPGA
  rcode = request_irq(irqId->onuDgIrqNum, onuGponDgIrqRoutine, IRQF_DISABLED, "mvDyGasp", (void*)irqId);
  if (rcode) 
  {
    mvPonPrint(PON_PRINT_ERROR, PON_INIT_MODULE,
               "ERROR: (%s:%d) GPON Dying Gasp interrupt register\n", __FILE_DESC__, __LINE__);
    free_irq(irqId->onuDgIrqNum, NULL);
    return(MV_ERROR);
  }
#endif /* PON_FPGA */

  return(MV_OK);
}

/*******************************************************************************
**
**  onuGponIrqRoutine
**  ____________________________________________________________________________
**
**  DESCRIPTION: GPON Interrupt routinr
**               
**  PARAMETERS:  none
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     IRQ_HANDLED
**
*******************************************************************************/
irqreturn_t onuGponIrqRoutine(int irq, void *arg)
{
#ifdef MV_GPON_HW_INTERRUPT
  onuGponIsrRoutine(0, 0);
#else /* SW_INTERRUPT - TASKLET */
  MV_U32 interruptEvent;
  MV_U32 interruptStatus;

  S_onuPonIrq *irqId = (S_onuPonIrq*)arg;
  onuGponIsrLowRoutine(&interruptEvent, &interruptStatus);
  gponCurrentInterruptEvent  = interruptEvent;
  gponCurrentInterruptStatus = interruptStatus;
  tasklet_hi_schedule(&(irqId->onuPonTasklet));
#endif /* MV_GPON_HW_INTERRUPT */

  return(IRQ_HANDLED);
}

#ifndef PON_FPGA
/*******************************************************************************
**
**  onuGponDgIrqRoutine
**  ____________________________________________________________________________
**
**  DESCRIPTION: Dying Gasp Interrupt routinr
**               
**  PARAMETERS:  none
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     IRQ_HANDLED
**
*******************************************************************************/
irqreturn_t onuGponDgIrqRoutine(int irq, void *arg)
{
  mvOnuPonMacDgInterruptDis();
  onuPonDyingGaspProcess();
  onuGponDgIsrRoutine();
  
  return(IRQ_HANDLED);
}
#endif /* PON_FPGA */

/*******************************************************************************
**
**  onuGponTaskletFunc
**  ____________________________________________________________________________
**
**  DESCRIPTION: GPON Interrupt tasklet function
**               
**  PARAMETERS:  none
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     GPON Interrupt number
**
*******************************************************************************/
void onuGponTaskletFunc(unsigned long dummy)
{
  MV_U32 interruptEvent  = gponCurrentInterruptEvent;  
  MV_U32 interruptStatus = gponCurrentInterruptStatus; 

  onuPonIrqDisable(&(onuPonResourceTbl_s.onuPonIrqId)); /* disable GPON interrupt */

  onuGponIsrRoutine(interruptEvent, interruptStatus);

  onuPonIrqEnable(&(onuPonResourceTbl_s.onuPonIrqId)); /* enable GPON interrupt */
}


/*******************************************************************************
**
**  gponOnuGlbAddrInit
**  ____________________________________________________________________________
**
**  DESCRIPTION: Allocate a memory space for GPON MAC register space
**               
**  PARAMETERS:  none
** 
**  OUTPUTS:     none
**                               
**  RETURNS:     IAMBA_OK
**
*******************************************************************************/
MV_STATUS onuGponGlbAddrInit(void)
{
#ifndef PON_FPGA
  /* set base address in the pon onu register table */
  ponOnuGlbAddrSet((MV_U32)(MV_GPON_MAC_REGS_BASE));
#else /* PON_FPGA */
  /* set base address in the pon onu register table */
  ponOnuGlbAddrSet((MV_U32)(MV_GPON_REG_BASE + 0xC000));
#endif /* PON_FPGA */

  return (MV_OK);
}