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******************************************************************************/
/******************************************************************************
* tpm_alarm.c
*
*
*  MODULE : TPM Alarm
*
*  DESCRIPTION : This file config tpm alarm
*
*  MODIFICATION HISTORY:
*           12Dec2010   Victor  - initial version created.
*
* FILE REVISION NUMBER:
*       $Revision: 1.8 $
*******************************************************************************/

#include "tpm_common.h"
#include "tpm_header.h"

extern  uint32_t trace_sw_dbg_flag; 
static uint32_t gportLosPreviousAlarm = 0;

/*******************************************************************************
* tpm_alarm_get_eth_port
*
* DESCRIPTION:
*       This function gets eth port alarm.
*
* INPUTS:
*       owner_id	 - APP owner id , should be used for all API calls.
*
* OUTPUTS:
*       alarm_type  - eth alarm type
*		 port_bitmap	- port bitmap
* RETURNS:
*       On success -  TPM_RC_OK. 
*       On error different types are returned according to the case , see tpm_error_code_t.
*
* COMMENTS:
*        NONE.
*
*******************************************************************************/
tpm_error_code_t tpm_alarm_get_eth_port
(
	uint32_t owner_id,
	uint32_t *alarm_type,
	uint8_t *port_bitmap
)
{
	tpm_error_code_t retVal = TPM_RC_OK;
	uint32_t i;
	uint32_t ethPreviousAlarmState;
	uint32_t ethCurrentAlarmState;
	uint32_t ethChangedAlarm;
	uint8_t reportBitmap;
	uint8_t clearBitmap;

	if (trace_sw_dbg_flag)
	{
		printk(KERN_INFO"==ENTER==%s: owner_id[%d]",
			 	__FUNCTION__,owner_id);
	}

	*alarm_type = 0;
	
	/*Get eth port los alarm*/
	if(ONU_EPON_ALARM_ETH_DEF_STATE & ONU_EPON_ALARM_ETH_PORT_LOS)
	{
		/* get the prvious eth port los alarm status */
		ethPreviousAlarmState = gportLosPreviousAlarm;

		/* get the current eth port los alarm status */
		retVal = mv_switch_get_port_los_alarm(&ethCurrentAlarmState);
		if (retVal != TPM_RC_OK)
		{
			printk(KERN_ERR
			"%s:%d: function failed\r\n", __FUNCTION__,__LINE__);
		}

		/*port alarm exists, report or clear*/
		if((ethCurrentAlarmState ^ ethPreviousAlarmState) != 0)
		{
			if (trace_sw_dbg_flag)
			{
				printk(KERN_INFO"%s: owner_id[%d]  ethPreviousAlarmState[%08x] ethCurrentAlarmState[%08x]\r\n",
					 	__FUNCTION__,owner_id, ethPreviousAlarmState, ethCurrentAlarmState);
			}
			
			/*get changed alarm*/
			ethChangedAlarm = (ethCurrentAlarmState ^ ethPreviousAlarmState);

			/* check port los alarm*/	
			reportBitmap = 0;
			clearBitmap = 0;
			for(i=0; i<TPM_MAX_NUM_ETH_PORTS; i++)
			{
				if(ethChangedAlarm & (1 << i))
				{
					/*save report port los alarm*/
					if(ethCurrentAlarmState & (1 << i))
					{
						reportBitmap |= (1 << i);
					}
					else /*save clear port los alarm*/
					{
						clearBitmap |= (1 << i);
					}
				}
			}
			
			/*if report port los alarm exists*/
			if(reportBitmap)
			{
				*alarm_type |= ONU_EPON_ALARM_ETH_PORT_LOS;
				port_bitmap[MAX_ETH_PORT_ALARM+ONU_EPON_ALARM_ETH_PORT_LOS-1] = reportBitmap;
			}
			
			/*if clear port los alarm exists*/
			if(clearBitmap)
			{
				*alarm_type |= ONU_EPON_ALARM_ETH_PORT_LOS_CLEAR;
				port_bitmap[ONU_EPON_ALARM_ETH_PORT_LOS-1] = clearBitmap;
			}
		}

		/* save current eth port los alarm status */
		gportLosPreviousAlarm = ethCurrentAlarmState;
	}
	
	if (trace_sw_dbg_flag)
	{
		printk(KERN_INFO
			"==EXIT== %s: alarm_type=%08x, port_bitmap[%02x][%02x]\n\r",__FUNCTION__, *alarm_type,port_bitmap[ONU_EPON_ALARM_ETH_PORT_LOS-1],
			port_bitmap[MAX_ETH_PORT_ALARM+ONU_EPON_ALARM_ETH_PORT_LOS-1] );
	}

	return retVal;
}