view src/ui3/bmi/mmiHomezone.c @ 581:a0a45c5eb3ef

gsmcomp.c: bumping trace partition size to 220 like in gprscomp.c This change is safe in terms of RAM usage because all of these partition pools have already been moved from XRAM to IRAM earlier, and our IRAM usage in VO configs is currently quite low - the one near the limit is XRAM on C11x.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 29 Jan 2019 03:52:49 +0000
parents 6a4d9f47793e
children
line wrap: on
line source

/*******************************************************************************

					CONDAT (UK)

********************************************************************************                                                                              

 This software product is the property of Condat (UK) Ltd and may not be
 disclosed to any third party without the express permission of the owner.                                 
                                                                              
********************************************************************************

 $Project name:	Basic MMI                                                      
 $Project code:	BMI                                                            
 $Module:		
 $File:		    MmiHomezone.c
 $Revision:		1.0                                                       
                                                                              
 $Author:		Condat(UK)                                                         
 $Date:		    15/02/02                                                      
                                                                               
********************************************************************************
                                                                              
 Description: Homezone functionality in MMI
 
   
                        
********************************************************************************

 $History: MmiHomezone.c

	15/02/02			Original Condat(UK) BMI version.
	28/05/02			Latest Condat(UK) BMI version

	Sep 14, 2007	REF: OMAPS00145865  Adrian Salido
	Description:	FT - MMI: Wrong trace class 
	Solution:		changed some event traces to function traces because the information content of 
				this is low for non-MMI people and against TI coding convention.

	Mar 14, 2006 DR: OMAPS00061468 - x0035544.
   	Description: SAT 27.22.4.22.2 SET UP IDLE MODE TEXT (Icon support) fails 
   	Solution : In the function homezoneUpdateDisplay(), additional parameter has been added to the
   	function call addSatMessage() under the flag FF_MMI_SAT_ICON to support SAT Icon for IDLE TEXT display.

       Dec 15, 2005   REF: MMI-FIX-OMAPS00058684 x0035544
       Description: OMAPS00045726 / MMI-FIX-30439 Follow-Up : ifdef for FF Home Zone forgotten.
       Solution: Added Feature flag FF_HOMEZONE for the function sms_homezoneCBToggle(U8 Activate_CB)
       in this file as it has got the prototype for this function.
       
	Jun 14, 2005 REF: MMI-FIX-30439 x0018858
   	Description: The homezone/cityzone tags were not being displayed properly.
   	Solution: Modified to save the tags properly in caches and also made the 
	appropriate modifications to update the same properly during mobility.
	   
 $End

*******************************************************************************/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#if defined (NEW_FRAME)

#include "typedefs.h"
#include "vsi.h"
#include "pei.h"
#include "custom.h"
#include "gsm.h"

#else

#include "STDDEFS.H"
#include "custom.h"
#include "gsm.h"
#include "vsi.h"

#endif


#include "mfw_sys.h"

#include "mfw_mfw.h"
#include "mfw_win.h"
#include "mfw_kbd.h"
/* SPR#1428 - SH - New Editor changes */
#ifndef NEW_EDITOR
#include "mfw_edt.h"
#endif
#include "mfw_lng.h"
#include "mfw_icn.h"
#include "mfw_phb.h"
#include "mfw_sim.h"
#include "mfw_nm.h"
#include "ksd.h"
#include "psa.h"
#include "mfw_sms.h"
#include "mfw_smsi.h"
#include "mfw_mnu.h"
#include "mfw_sat.h"
#include "mfw_tim.h"
#include "mfw_cphs.h"

#include "MmiMmi.h"
#include "MmiDummy.h"
#include "MmiDialogs.h"
#include "MmiLists.h"

#include "MmiMain.h"
#include "MmiStart.h"
#include "MmiPins.h"
#include "MmiMenu.h"
#include "MmiSoftKeys.h"
#include "MmiSounds.h"
#include "mmiCall.h"

#include "MmiBookController.h"

#include "MmiIdle.h"
#include "Mmiicons.h"
#include "MmiNetwork.h"
#include "mmiSmsBroadcast.h"
#include "MmiHomezone.h"

#include "cus_aci.h"

#include "prim.h"
#ifndef PCM_2_FFS
#include "pcm.h"
#endif


//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
// enable HZ trace 
//#undef	TRACE_MMIHOMEZONE
#define TRACE_MMIHOMEZONE 1

T_homezone_data		homezoneData;
extern T_SMSCB_DATASTORE g_smscb_data; /* storage for Cell Broadcast lists */
static int  hzFlag = 0; //Jun 14, 2005 REF: MMI-FIX-30439 x0018858

//Dec 14, 2005 REF: MMI-FIX-OMAPS00058684 x0035544
#ifdef FF_HOMEZONE
//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
// Externed the function for activation\deactivation of Homezone.
extern void sms_homezoneCBToggle(U8 Activate_CB);
#endif

/* x0039928 - Lint warning fix */
static char *homezoneMNC_MCC[HZ_PERMITTED_NETWORKS] =
{
	"26207", /* VIAG Interkom */
};

//void sms_homezoneCBToggle(U8 Activate_CB);

/*******************************************************************************

LOCALLY REFERENCED FUNCTIONS

*******************************************************************************/

void		homezoneReadParams();
void		homezoneLocate();
static U32	calculateDecimal( char *string, int length );
static U32	readHexFromSimfile( UBYTE *simFile, int length );
static void	writeHexToSimfile( UBYTE *simFile, U32 value, int length );

/*******************************************************************************

 $Function:    	homezoneInit

 $Description:	Initialise homezone data structure.  Reset the recent cache.
 
 $Returns:		

 $Arguments:
*******************************************************************************/

void homezoneInit()
{
	T_homezone_data	*data			= &homezoneData;
	USHORT cacheIndex;
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	// Added the following local variables.
	//begin 30439
	UBYTE          version; 
	USHORT         max_rcd;
	EF_HZCACHE     cache;
	//end 30439
	
	TRACE_FUNCTION("homezoneInit()");

	/* Set all data to 0 */

	memset((UBYTE *)data, 0, sizeof(T_homezone_data));

	data->current_zone = HZ_NOT_IN_ZONE;									// 0xFF = not in a homezone
	data->recent_cell_index = HZ_RECENT_MAX-1;								// Next entry will loop round & be at start of cache

	/* Set up recent cell cache */
	
	for (cacheIndex = 0; cacheIndex<HZ_RECENT_MAX; cacheIndex++)
	{
		data->recent_cell[cacheIndex] = 0;
		data->recent_cell_zone[cacheIndex] = HZ_NOT_IN_ZONE;
		//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
		//begin 30439
			/* Read cache from PCM */
		if (pcm_ReadRecord((UBYTE *)EF_HZCACHE_ID,
                         (USHORT)(cacheIndex+1),
                         SIZE_EF_HZCACHE,
                         (UBYTE *)&cache,
                         &version,
                         &max_rcd) NEQ DRV_OK)
		{
			TRACE_EVENT ("Init cache read from PCM wrong");
			break;                                      /* read error */
		}
		else
		{
			if (cache.cid[0] != 0xFF AND cache.cid[1] != 0xFF)
			{
				data->recent_cell[cacheIndex] = readHexFromSimfile(&cache.cid[0],2);
				data->recent_cell_zone[cacheIndex] = cache.zone;
			}
        }
		TRACE_EVENT_P3("Init cache %d: CID %X, zone %X",cacheIndex, data->recent_cell[cacheIndex], data->recent_cell_zone[cacheIndex]);
		//end 30439
	}

	data->new_cell_res = FALSE;
	
	return;
}

			
/*******************************************************************************

 $Function:    	homezoneReadSim

 $Description:	Read homezone data in from SIM.  Checks to see if conditions (SIM,
 				network) are correct for homezone; switches it off if not.
 
 $Returns:		None.

 $Arguments:	read_again	- if this is HZ_READ_ONCE_ONLY, then SIM fields will not
 					be read in again if they have already been read in once.
 					If this is HZ_READ_SIM_AGAIN, they will be read in anyway.
 					
*******************************************************************************/

void homezoneReadSim(UBYTE read_again)
{
	T_homezone_data		*data = &homezoneData;
	char IMSI[17];
	char MNC_MCC[6];
	
	USHORT				networkIndex;
	UBYTE				networkOK;
	USHORT				tries;

	/* Check if homezone is switched off */
	
	if (data->received == HZ_RECEIVED_HZ_OFF)
		return;

	/* SPR877 - If read_again specifies that SIM data should not be re-read, exit from function
	 * provided we have read it once. */
	 
	if (read_again == HZ_READ_ONCE_ONLY && data->received & HZ_RECEIVED_SIMDATA)
		return;
	
	TRACE_FUNCTION("homezoneReadSim()");

	/* Check if network operator is in list */

	networkOK = FALSE;

	tries = 0;
	
	while ((qAT_PlusCIMI(CMD_SRC_LCL, IMSI)) != AT_CMPL  && tries < 5)
	{
		tries++;
	}
		
	strncpy(MNC_MCC, IMSI, 5);
	MNC_MCC[5] =0;	//terminate string

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P1("MNC_MCC: %s", (char *)MNC_MCC);
#endif

	for (networkIndex=0; networkIndex<HZ_PERMITTED_NETWORKS; networkIndex++)
	{
		if (!strncmp((char *)MNC_MCC, homezoneMNC_MCC[networkIndex],5))
		{
#ifdef TRACE_MMIHOMEZONE
			TRACE_EVENT_P1("Matches entry %d", networkIndex);
#endif
			networkOK = TRUE;
		}
	}
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//begin 30439
	/* Attempt to read first sim field */
	if (read_again == HZ_READ_SIM_AGAIN)
		hzFlag = 1;
	//end 30439

	if (networkOK)
	{
		if (!Read_Sim(HZ_SIM_PARAMETERS, 0, HZ_SIM_PARAMETERS_SIZE, data->buffer))
		{
			TRACE_EVENT("SIM read error 1: Homezone OFF");	/* SIM field not present, switch off homezone */
			data->received = HZ_RECEIVED_HZ_OFF;
			hzFlag = 0; //Jun 14, 2005 REF: MMI-FIX-30439 x0018858 - Seting the variable
		}
	}
	else
	{
		TRACE_EVENT("Wrong network: Homezone OFF");		/* Network not in list, switch off homezone */
		data->received = HZ_RECEIVED_HZ_OFF;
		hzFlag = 0; //Jun 14, 2005 REF: MMI-FIX-30439 x0018858 - Seting the variable
	}
	
	return;
}


/*******************************************************************************

 $Function:    	homezoneReadSimCb

 $Description:	Callback, called when read sim has occurred.  Fills up the homezone
 				data structure with the appropriate values retrieved from SIM.
 
 $Returns:		None.

 $Arguments: 	field - the SIM field that was just read
 				record - the record in the SIM field that was read
 				result - the result code returned - 0 for successful.
*******************************************************************************/

void homezoneReadSimCb(USHORT field, USHORT record, USHORT result)
{
	T_homezone_data	*data				= &homezoneData;
	T_homezone		*homezone			= data->homezone;
	UBYTE			*simFile;
	USHORT			fileIndex;
	USHORT			hzIndex;
	UBYTE			keepLooking;
	U8	Activate_cb =0; //Jun 14, 2005 REF: MMI-FIX-30439 x0018858 
						//To activate/deactivate homezoneCB
	TRACE_FUNCTION("homezoneReadSimCb()");
	
#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P2("Have just read SIM file: %x record %d", field, record);
#endif

	/* Read in general homezone data.  If reading first SIM field fails, switch homezone off */

	if (field==HZ_SIM_PARAMETERS)
	{	
		/* check SIM read result for homezone parameter */
		//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
		//begin 30439
		//Modified the conditional statement
		//if (result)
		if (result != 0x80FF)
//end 30439
		{
			TRACE_EVENT("SIM read error 2: Homezone OFF");
			data->received = HZ_RECEIVED_HZ_OFF;
			hzFlag = 0; //Jun 14, 2005 REF: MMI-FIX-30439 x0018858 -Setting the variable
			return;
		}
		homezoneReadParams();
		/*homezoneActivateCB();*/				/* Switch on cell broadcast */
		/* SH - this is already done at startup */
		record = HZ_CACHE_MAX;
	}
	
	/* Read in records for each homezone cache */

	/* check SIM read result for hoemzone cache */
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//begin 30439
	//Modified the conditional statement
	//if (field>HZ_SIM_PARAMETERS && !result)
	if (field>HZ_SIM_PARAMETERS && (result == 0x80FF))
	//end 30439
	{
		hzIndex = field - HZ_SIM_CELL_CACHE;
		simFile = data->buffer2;
		fileIndex = 0;
		
		homezone[hzIndex].lac[record-1] = readHexFromSimfile(&simFile[fileIndex],2);
		fileIndex+=2;
		homezone[hzIndex].cid[record-1] = readHexFromSimfile(&simFile[fileIndex],2);

#ifdef TRACE_MMIHOMEZONE
		TRACE_EVENT_P2("read lac = %x, cid = %x", homezone[hzIndex].lac[record-1], homezone[hzIndex].cid[record-1]);
#endif
	}

	/* Read in the next record */

	keepLooking = TRUE;
	
	while (keepLooking)
	{
		/* check SIM read result for hoemzone cache */
		//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
		//begin 30439
		//Modified the conditional statement
		//if (record==HZ_CACHE_MAX || result)
		if (record==HZ_CACHE_MAX || (result != 0x80FF))
//end 30439
		{
			field++;												// Look at next field
			record = 1;
			//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
			// Print the current feild.
			TRACE_EVENT_P1("current field = %x", field);
		}
		else
			record++;

		hzIndex = field-HZ_SIM_CELL_CACHE;

		if (hzIndex==HZ_ZONES_MAX)
		{
			keepLooking = FALSE;
			/* Have read all sim data, set flag so icon etc will be updated */
			data->received |= HZ_RECEIVED_SIMDATA;
			//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
			//begin 30439
			/* homezone display update after SIM REFRESH (when hzFlag set to 1) */
			TRACE_EVENT_P1("hzFlag = %d", hzFlag);
			if (hzFlag)
			{
//				hzFlag = 0;
				homezoneUpdate(0, 0, 1);
			}
			else
			{

				TRACE_EVENT("activate homezone CB");
				//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
				//Call to activate the Homezone CB.
				Activate_cb = 1;
				
#ifdef FF_HOMEZONE
				sms_homezoneCBToggle(Activate_cb);
#endif
				homezoneUpdate(0, 0, 1); /* new VO : speed up update */
			}
			//end 30439
			 
		}
		else if (homezone[hzIndex].active)
		{
			keepLooking = FALSE;
			
#ifdef TRACE_MMIHOMEZONE
	//TRACE_EVENT_P3("HZ READ HZ %d field %X record %d", hzIndex, field, record);
#endif
			if (!Read_Sim_Record(field, record, HZ_SIM_CELL_CACHE_SIZE, data->buffer2))
			{
				TRACE_EVENT("SIM reading error!");
			}
		}
	}
	
	return;
}


/*******************************************************************************

 $Function:    	homezoneReadParams

 $Description:	Decode the homezone parameters from the first SIM field
 
 $Returns:		None.

 $Arguments:	None.
*******************************************************************************/

void homezoneReadParams()
{
	T_homezone_data	*data				= &homezoneData;
	T_homezone		*homezone			= data->homezone;
	UBYTE			*simFile;
	USHORT			fileIndex;
	USHORT			tagIndex;
	USHORT			hzIndex;
	char			character;

	TRACE_FUNCTION("homezoneReadParams()");
	
	simFile = data->buffer;
	fileIndex = HZ_SIM_FIRST_ZONE;										// Point to the first homezone data

	for (hzIndex=0; hzIndex<HZ_ZONES_MAX; hzIndex++)					// For each homezone...
	{
		homezone[hzIndex].zoneID = simFile[fileIndex];				// Read in the various parameters
		fileIndex++;
		
		homezone[hzIndex].X = readHexFromSimfile(&simFile[fileIndex],4);
		fileIndex += 4;
		homezone[hzIndex].Y = readHexFromSimfile(&simFile[fileIndex],4);
		fileIndex += 4;
		homezone[hzIndex].Rsquared = readHexFromSimfile(&simFile[fileIndex],4);
		fileIndex += 4;
		
		homezone[hzIndex].active = (BOOL) (simFile[fileIndex] & HZ_ACTIVE_FLAG)/HZ_ACTIVE_FLAG;
		homezone[hzIndex].cityzone = (BOOL) (simFile[fileIndex] & HZ_CITYZONE_FLAG)/HZ_CITYZONE_FLAG;
		fileIndex++;
					
		/* Read in the 12-character tag name */
		
		for (tagIndex = 0; tagIndex<HZ_NAME_LENGTH; tagIndex++)					
		{
			character = (char) simFile[fileIndex];
			fileIndex++;
			if (character<32 /*|| character>127*/)   /*a0393213 - lint warnings removal - 'Relational operator '>' always evaluates to 'false'*/
				character = 0;
			homezone[hzIndex].Tag[tagIndex] = character;
		}
		homezone[hzIndex].Tag[HZ_NAME_LENGTH] = 0;								// Make sure tag is null-terminated

#ifdef TRACE_MMIHOMEZONE
			TRACE_EVENT_P1("Homezone %d:", hzIndex);
			TRACE_EVENT_P1("ID: %d", homezone[hzIndex].zoneID);
			TRACE_EVENT_P1("Active: %d", (UBYTE)homezone[hzIndex].active);
			TRACE_EVENT_P1("Cityzone: %d", (UBYTE)homezone[hzIndex].cityzone);
			TRACE_EVENT_P1("X: %X", homezone[hzIndex].X);
			TRACE_EVENT_P1("Y: %X", homezone[hzIndex].Y);
			TRACE_EVENT_P1("Rsquared: %X", homezone[hzIndex].Rsquared);
		TRACE_EVENT_P1("Homezone name: %s", homezone[hzIndex].Tag);
#endif

	}

	return;
}


/*******************************************************************************

 $Function:    	homezoneWriteSim

 $Description:	Write homezone data to the SIM
				SPR 877 - SH - now just writes a single record
 
 $Returns:		None.

 $Arguments:	cache, record
********************************************************************************/

void homezoneWriteSim(USHORT field, USHORT record)
{
	T_homezone_data	*data				= &homezoneData;
	USHORT hzIndex;
	UBYTE *simFile;
	USHORT fileIndex;

	/* Check if homezone is already switched off */

	if (data->received==HZ_RECEIVED_HZ_OFF)
		return;
	
	TRACE_FUNCTION("homezoneWriteSim()");

	hzIndex = field-HZ_SIM_CELL_CACHE;
	
#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P4("HZ WRITE field: %X record %d lac %X cid %X", field, record, data->homezone[hzIndex].lac[record-1], data->homezone[hzIndex].cid[record-1]);
#endif

	if (data->homezone[hzIndex].active)
	{	
		simFile = data->buffer2;
		fileIndex = 0;
		writeHexToSimfile(&simFile[fileIndex], data->homezone[hzIndex].lac[record-1], 2 );
		fileIndex += 2;
		writeHexToSimfile(&simFile[fileIndex], data->homezone[hzIndex].cid[record-1], 2 );
	}

	if (!Write_Sim_Record(field, record, HZ_SIM_CELL_CACHE_SIZE, data->buffer2))
	{
		TRACE_EVENT("SIM writing error!");
	}
	return;
}


/*******************************************************************************

 $Function:    	homezoneWriteSimCb

 $Description:	Write homezone data to the SIM.  This function is called after a previous
 				SIM write (or, in the initial case, by homezoneWriteSim above).
				SPR877 - SH - Previous functionality no longer required here.
 
 $Returns:		None.

 $Arguments:	field - the SIM field that is to be written
 				record - the SIM record that is to be written
 				result - the result of the last write attempt
*******************************************************************************/

void homezoneWriteSimCb(USHORT field, USHORT record, USHORT result)
{
	TRACE_FUNCTION("homezoneWriteSimCb()");

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P1("RESULT: %d", result);
#endif

	return;
}


/*******************************************************************************

 $Function:    	homezoneCBData

 $Description:	Make sure correct homezone CB channel is set up and activate CB
 
 $Returns:		None.

 $Arguments:	message		- The text of the cell broadcast message
*******************************************************************************/

void homezoneActivateCB(void)
{
	T_homezone_data	*data				= &homezoneData;
	USHORT index;
	UBYTE stopSearch;
	USHORT emptyID;

	/* Check if homezone is already switched off */

	if (data->received==HZ_RECEIVED_HZ_OFF)
		return;
	
	TRACE_FUNCTION("homezoneActivateCB()");
	
	/* Check table to see if correct channel is included */
	
	stopSearch = FALSE;
	emptyID = 0xFFFF;
	
	for (index=0; index<MAX_MIDS && !stopSearch; index++)
	{
		TRACE_EVENT_P2("Mid %d is %X", index, g_smscb_data.CBTopics.entry[index].msg_id);
		if (g_smscb_data.CBTopics.entry[index].msg_id==HZ_IDENTIFIER)
		{
			stopSearch = TRUE;
		}
		else if (g_smscb_data.CBTopics.entry[index].msg_id==NO_MID)
		{
			emptyID = index;
			stopSearch = TRUE;
		}		
	}

	TRACE_EVENT_P1("Emtpy ID %d", emptyID);
	
	if (emptyID!=0xFFFF && emptyID<MAX_MIDS-1)
	{
		strncpy (g_smscb_data.CBTopics.entry[emptyID].name, HZ_CB_NAME, CB_TAG_LENGTH);
	    g_smscb_data.CBTopics.entry[emptyID].msg_id = HZ_IDENTIFIER;
	     g_smscb_data.CBTopics.entry[emptyID].dcs = 0;

	    // add a new entry
	    emptyID += 1;
	    g_smscb_data.CBTopics.length = emptyID;
	}
	
    smscb_setCBsettings(SMSCB_SWITCH_ON);
	return;
}


/*******************************************************************************

 $Function:    	homezoneCBData

 $Description:	A cell broadcast message has been received, containing information about
 				the location of the current cell
 
 $Returns:		None.

 $Arguments:	message		- The text of the cell broadcast message
*******************************************************************************/

void homezoneCBData(char *message)
{
	T_homezone_data	*data				= &homezoneData;

	/* Check if homezone is already switched off */

	if (data->received==HZ_RECEIVED_HZ_OFF)
		return;

	TRACE_FUNCTION("homezoneCellData()");

	/* Calculate the current position from the text of the message */
	
	data->current_X = calculateDecimal( &message[0], HZ_COORD_DIGITS );
	data->current_Y = calculateDecimal( &message[HZ_COORD_DIGITS], HZ_COORD_DIGITS );

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P2("current_X: %X, current_Y: %X", data->current_X, data->current_Y);
#endif
			
	data->received |= HZ_RECEIVED_CB;				// We now have received cell broadcast message.

	/* SPR877 - SH - now only call HZ algorithm if a cell res has recently taken place */
	
	if (data->received==HZ_RECEIVED_ALL && data->new_cell_res)  // If we've received everything, call algorithm.
	{
		homezoneLocate();
		data->new_cell_res = FALSE;
	}
			
 	return;
}


/*******************************************************************************

 $Function:    	homezoneLocate

 $Description:	Looks at coordinates from cell broadcast message and calculates if
 				they are in a homezone
 
 $Returns:		None

 $Arguments:	None
 
*******************************************************************************/

void homezoneLocate()
{
	T_homezone_data	*data				= &homezoneData;
	T_homezone		*homezone			= data->homezone;
	long			deltaX;
	long			deltaY;
	USHORT			hzIndex;
	USHORT			cacheIndex=0;
	U32				Dsquared;
	BOOL			foundInCache;
	USHORT			cacheFreeSpace=0;	
	USHORT			field;
	USHORT			record=0;
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//begin 30439
	EF_HZCACHE      cache;
	UBYTE			exist = 0;
	//end 30439

	/* Check if homezone is already switched off */
	
	if (data->received==HZ_RECEIVED_HZ_OFF)
		return;
	
	TRACE_FUNCTION("homezoneLocate()");

	data->current_zone = HZ_NOT_IN_ZONE;							// We don't know if we're in a homezone yet (homezones = 0 to 3)
	field = HZ_NOT_IN_ZONE;											// The cache to update

	/* Work out if we're in a homezone using current_X and current_Y, received from CB message */

	if (data->received == HZ_RECEIVED_ALL)
	{
#ifdef TRACE_MMIHOMEZONE
		TRACE_EVENT_P2("Current cell X: %X, Y: %X", data->current_X,data->current_Y);
#endif
	
		/* Check to see if (current_X,current_Y) is in any of the defined homezones */
		
		for (hzIndex=0; hzIndex<HZ_ZONES_MAX && data->current_zone==HZ_NOT_IN_ZONE; hzIndex++)						// For each homezone...
		{
#ifdef TRACE_MMIHOMEZONE		
			TRACE_EVENT_P1("Homezone %d...", hzIndex);
			TRACE_EVENT_P3("Has coords X: %X, Y: %X, R2: %X", homezone[hzIndex].X, homezone[hzIndex].Y, homezone[hzIndex].Rsquared);
#endif

			if (homezone[hzIndex].active)										// Provided the homezone is active
			{
#ifdef TRACE_MMIHOMEZONE														// Calculate X and Y distance 
				TRACE_EVENT("Is active.");
#endif
				deltaX = labs(data->current_X-homezone[hzIndex].X);				// between centre of current cell
				deltaY = labs(data->current_Y-homezone[hzIndex].Y);				// and centre of the homezone
#ifdef TRACE_MMIHOMEZONE
				TRACE_EVENT_P1("deltaX = %d",deltaX);
				TRACE_EVENT_P1("deltaY = %d",deltaY);
#endif		
				if (deltaX<=HZ_DISTANCE_MAX && deltaY<=HZ_DISTANCE_MAX) 		// If not too far...
				{
					Dsquared = deltaX*deltaX+deltaY*deltaY;						// Calculate the resultant distance squared
#ifdef TRACE_MMIHOMEZONE
						TRACE_EVENT_P1("Dsquared = %d",Dsquared);
#endif							
					if (Dsquared <= homezone[hzIndex].Rsquared)					// If within radius of homezone squared
					{
#ifdef TRACE_MMIHOMEZONE
						TRACE_EVENT("Contains the current cell.");
#endif
						data->current_zone = hzIndex;						// Current zone is this homezone
						
						if (!homezone[hzIndex].cityzone)							// Then: if it's not a cityzone
						{
#ifdef TRACE_MMIHOMEZONE
							TRACE_EVENT("Is not a cityzone.");
#endif
							foundInCache = FALSE;									// Look through the cache for this
							cacheFreeSpace = HZ_CACHE_MAX;							// homezone to see if cell is listed

							for (cacheIndex=0; cacheIndex<HZ_CACHE_MAX && !foundInCache; cacheIndex++)
							{
								if (data->cid==homezone[hzIndex].cid[cacheIndex])
								{
									foundInCache = TRUE;							// We've found it!
								}
								if (homezone[hzIndex].cid[cacheIndex]==0 && cacheFreeSpace==HZ_CACHE_MAX)
									cacheFreeSpace = cacheIndex;					// Or we've found an empty space
							}

							if (!foundInCache)										// If not there, need to add it
							{
#ifdef TRACE_MMIHOMEZONE
								TRACE_EVENT("Is not in the cache.");
#endif
								if (cacheFreeSpace==HZ_CACHE_MAX)					// If we didn't find a free space...
								{
									cacheFreeSpace = rand() % HZ_CACHE_MAX;			// Choose a random entry 
								}
								homezone[hzIndex].cid[cacheFreeSpace] = data->cid;	// And store current cell there
								homezone[hzIndex].lac[cacheFreeSpace] = data->lac;	// with its location area code

								field = hzIndex+HZ_SIM_CELL_CACHE;					// We've changed the cache
								record = cacheFreeSpace+1;

#ifdef TRACE_MMIHOMEZONE
								TRACE_EVENT_P1("Have added to cache, entry %d.",cacheFreeSpace);
#endif
							}
						}
					}
					else															// If we're not in the homezone...
					{
						foundInCache = FALSE;										// Look through the cache for this
																					// homezone to see if cell is listed
						for (cacheIndex=0; cacheIndex<HZ_CACHE_MAX && !foundInCache; cacheIndex++)
						{
							if (data->cid==homezone[hzIndex].cid[cacheIndex])
							{
								foundInCache = TRUE;								// We've found it!
								cacheFreeSpace = cacheIndex;						// Record where it is
								break;
							}
						}

						if (foundInCache)											// If it's there...
						{
#ifdef TRACE_MMIHOMEZONE
							TRACE_EVENT("Is in the cache and shouldn't be.");
#endif
							homezone[hzIndex].cid[cacheFreeSpace] = 0;				// ...remove it
							field = hzIndex+HZ_SIM_CELL_CACHE;					// We've changed the cache
							record = cacheFreeSpace+1;
							data->current_zone = HZ_NOT_IN_ZONE;						// We're not in this zone
						}
#ifdef TRACE_MMIHOMEZONE
						else
						{
							TRACE_EVENT("Isn't in the cache and shouldn't be.");
						}
#endif
					}

					//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
					//begin 30439
					/* check if the cid is already in cache */
					for (cacheIndex=0; cacheIndex<HZ_RECENT_MAX; cacheIndex++) /*a0393213 - lint warnings removal - HZ_CACHE_MAX changed to HZ_RECENT_MAX*/
					{
						if (data->recent_cell[cacheIndex] == data->cid)
							exist = 1;
					}
					/* Replace oldest cell in dynamic cache with new cell */
					//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
					//begin 30439
					//Added a conditional statement
					if (!exist)
					{
					data->recent_cell_index++;
					if (data->recent_cell_index>=HZ_RECENT_MAX)
						data->recent_cell_index = 0;
#ifdef TRACE_MMIHOMEZONE
					TRACE_EVENT_P1("Adding to recent list, index = %d", data->recent_cell_index);
#endif
					data->recent_cell[data->recent_cell_index] = data->cid;
					data->recent_cell_zone[data->recent_cell_index] = data->current_zone;
					
					//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
					//begin 30439
					/* write cache to PCM */
					writeHexToSimfile(&cache.cid[0], data->recent_cell[data->recent_cell_index], 2 );
					cache.zone = data->recent_cell_zone[data->recent_cell_index];
					/* write cache to PCM */
					pcm_WriteRecord((UBYTE *)EF_HZCACHE_ID,
									(USHORT)(data->recent_cell_index+1),
									SIZE_EF_HZCACHE,
									&cache.cid[0]);

					}
					//end 30439
#ifdef TRACE_MMIHOMEZONE
for (cacheIndex = 0; cacheIndex<HZ_RECENT_MAX; cacheIndex++)
{
		TRACE_EVENT_P3("Recent cache %d: CID %X, zone %X",cacheIndex, data->recent_cell[cacheIndex], data->recent_cell_zone[cacheIndex]);
}
#endif
				}

			}

		}

	}

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT("CACHES AFTER UPDATE");
	for (hzIndex=0; hzIndex<HZ_ZONES_MAX; hzIndex++)			// For each homezone...
	{	
		/* x0083025 on Sep 14, 2007 for OMAPS00145865 (adrian) */
		MMI_TRACE_EVENT_P2("Zone %d (%s)", hzIndex, homezone[hzIndex].Tag);

		if (homezone[hzIndex].active && !homezone[hzIndex].cityzone)				// If it's active, and not a cityzone
		{
			for (cacheIndex=0; cacheIndex<HZ_CACHE_MAX; cacheIndex++)	// Check the cache.
			{ 
				TRACE_EVENT_P3("Cache %d: lac %X, cid %X", cacheIndex, homezone[hzIndex].lac[cacheIndex], homezone[hzIndex].cid[cacheIndex]);
			}
		}
	}
#endif
	/* Update icon/text tag. */
	
	homezoneUpdateDisplay();
	
	/* Write data back to SIM if cache has changed & SIM files present */

	if (field!=HZ_NOT_IN_ZONE && (data->received & HZ_RECEIVED_SIMDATA))
	{
		homezoneWriteSim(field, record);
	}
	
	return;
}


/*******************************************************************************

 $Function:    	homezoneUpdate

 $Description:	Main homezone function; check whether MS is in a homezone or not
 
 $Returns:		

 $Arguments:	lac		- the location area code of the current cell (on cell reselection)
 				cid	- the ID of the current cell (on cell reselection)
				keep - 1: no change in lac and cid
*******************************************************************************/
//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
//begin 30439
//Added an extra argument in the function -- "keep"
void homezoneUpdate(USHORT lac, USHORT cid, UBYTE keep)
{
	T_homezone_data	*data				= &homezoneData;
	T_homezone		*homezone			= data->homezone;
	USHORT			hzIndex;
	USHORT			cacheIndex;
	UBYTE			inCache = 0;

	/* Check if homezone is already switched off */

	TRACE_EVENT_P1("Data received: %d", data->received);
	
	if (data->received==HZ_RECEIVED_HZ_OFF)
		return;
	
	TRACE_FUNCTION("homezoneUpdate()");

	data->current_zone = HZ_NOT_IN_ZONE;							// We don't know if we're in a homezone yet (homezones = 0 to 3)
	data->received |= HZ_RECEIVED_CELLRES;							// Have received this event
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//Modified to add a conditional statement
	//begin 30439
	if (!keep)
	{
		data->lac = lac;
		data->cid = cid;
	}
	/* keep the current lac and cid */
	else
	{
		lac = data->lac;
		cid = data->cid;
	}
	//end 30439

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P3("lac: %X, cid: %X, received: %d", lac, cid, data->received);
#endif

	/* If either are zero or -1, the reselection data is invalid */
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//Modified to add a conditional statement
	if (((lac==0 || cid==0) || (lac==0xFFFF || cid==0xFFFF)) AND !keep)
	{
		TRACE_EVENT_P1("homezoneUpdateDisplay ~HZ_RECEIVED_CELLRES keep=%d", keep);
	//end 30439
		data->received &= (~HZ_RECEIVED_CELLRES);
		homezoneUpdateDisplay();
		return;
	}

	data->new_cell_res = TRUE;										// Cell res just occurred

	/* Must have received SIM data to continue*/

	if (!(data->received & HZ_RECEIVED_SIMDATA))
		return;
	
	/* Check homezone cache for each homezone */
	/* Can do this even if we haven't received the CB message */

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT("Checking zone caches...");
#endif
	
	for (hzIndex=0; hzIndex<HZ_ZONES_MAX && data->current_zone==HZ_NOT_IN_ZONE; hzIndex++)			// For each homezone...
	{
#ifdef TRACE_MMIHOMEZONE
		/* x0083025 on Sep 14, 2007 for OMAPS00145865 (adrian) */
		MMI_TRACE_EVENT_P2("Zone %d (%s)", hzIndex, homezone[hzIndex].Tag);
#endif
		
		if (homezone[hzIndex].active && !homezone[hzIndex].cityzone)				// If it's active, and not a cityzone
		{
#ifdef TRACE_MMIHOMEZONE
		TRACE_EVENT("Is Active.");
#endif		
			for (cacheIndex=0; cacheIndex<HZ_CACHE_MAX && data->current_zone==HZ_NOT_IN_ZONE; cacheIndex++)	// Check the cache.
			{ 
#ifdef TRACE_MMIHOMEZONE
					TRACE_EVENT_P3("Cache %d: lac %X, cid %X", cacheIndex, homezone[hzIndex].lac[cacheIndex], homezone[hzIndex].cid[cacheIndex]);
#endif
				
				if (cid==homezone[hzIndex].cid[cacheIndex])					// If the current cell is in the cache....
				{
#ifdef TRACE_MMIHOMEZONE
					TRACE_EVENT_P1("Cell found in cache %d.",cacheIndex);
#endif
					data->current_zone = hzIndex;									// Then this is our current homezone!
					inCache = 1;
				}
			}
			if (!inCache AND hzFlag)
			{
				hzFlag = 0;
				TRACE_EVENT ("not in cache, caculate needed");
				homezoneLocate();
				return;
			}
			else
				inCache = 0;
		}
	}
	//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
	//added a conditional statement
	//begin 30439
	/* If we didn't find a homezone, check recent cells cache to see if we're in a cityzone */
	for (hzIndex=0; hzIndex<HZ_ZONES_MAX && data->current_zone==HZ_NOT_IN_ZONE; hzIndex++)			// For each homezone...
	{
#ifdef TRACE_MMIHOMEZONE
		/* x0083025 on Sep 14, 2007 for OMAPS00145865 (adrian) */
		MMI_TRACE_EVENT_P2("Zone %d (%s)", hzIndex, homezone[hzIndex].Tag);
#endif
		
		if (homezone[hzIndex].active && homezone[hzIndex].cityzone)				// If it's active, and not a cityzone
		{
#ifdef TRACE_MMIHOMEZONE
		TRACE_EVENT("Is Active.");
#endif		
		
		for (cacheIndex=0; cacheIndex<HZ_RECENT_MAX && data->current_zone==HZ_NOT_IN_ZONE; cacheIndex++)	// Check the cache.
		{ 
#ifdef TRACE_MMIHOMEZONE
				TRACE_EVENT_P5("Cache %d: lac %X, cid %X, data->recent_cell %X, data->recent_cell_zone %d", cacheIndex, homezone[hzIndex].lac[cacheIndex], homezone[hzIndex].cid[cacheIndex], data->recent_cell[cacheIndex], data->recent_cell_zone[cacheIndex]);
#endif
				
			if (cid==data->recent_cell[cacheIndex] && data->recent_cell_zone[cacheIndex]!=HZ_NOT_IN_ZONE) // If we're in that cell 
				{
#ifdef TRACE_MMIHOMEZONE
				TRACE_EVENT_P1("FOUND cityzone in cache %d.",cacheIndex);
#endif
				//Jun 14, 2005 REF: MMI-FIX-30439 x0018858
				//Modified to directly assign value
				data->current_zone = hzIndex;									// Then this is our current homezone!
				inCache = 1;
			}
			if (!inCache AND hzFlag)
			{
				hzFlag = 0;
				TRACE_EVENT ("not in cache, caculate needed");
				homezoneLocate();
				return;
			}
			else
				inCache = 0;
		}
		}
	}

	homezoneUpdateDisplay();								// Update icon/text tag.

	return;
}


/*******************************************************************************

 $Function:    	homezoneUpdateDisplay

 $Description:	
 
 $Returns:		Updates the homezone icon and text string appropriately

 $Arguments:	none
*******************************************************************************/

void homezoneUpdateDisplay(void)
{
	T_homezone_data	*data	= &homezoneData;

	TRACE_FUNCTION("homezoneUpdateDisplay()");

	iconsDeleteState(iconIdHomezone);
	
#ifdef FF_MMI_SAT_ICON
	addSatMessage(NULL, 0, 0, NULL, FALSE, SAT_ICON_NONE);
#else
	addSatMessage(NULL);
#endif
	
	if (data->current_zone!=HZ_NOT_IN_ZONE)										// If not in a homezone, leave blank
	{
//x0035544 Mar 14, 2006 DR:OMAPS00061468
#ifdef FF_MMI_SAT_ICON
	addSatMessage(data->homezone[data->current_zone].Tag, 0, 0, NULL, FALSE, SAT_ICON_NONE);
#else
	addSatMessage(data->homezone[data->current_zone].Tag);
#endif
		if (!data->homezone[data->current_zone].cityzone)						// Display icon if homezone rather than cityzone
		{
			iconsSetState(iconIdHomezone);
		}
	}
	
	return;
}


/*******************************************************************************

 $Function:    	calculateDecimal

 $Description:	
 
 $Returns:		Returns a decimal number from a string of ascii digits

 $Arguments:	none
*******************************************************************************/

static U32 calculateDecimal( char *string, int length )
{
	U32 total = 0;
	int index;
	
	/* decode each decimal character in turn */
	for (index = 0; index < length; index++ )
	{
		if (string[index]>='0' && string[index]<='9')
		{
			total = ( total * 10 ) + ( string[index] - '0' );
		}
	}
	
	return total;
}

/*******************************************************************************

 $Function:    	readHexFromSimfile

 $Description:	Reads a hex string (MSB first) from a sim file
 
 $Returns:		The hex number

 $Arguments:	simFile - the point in the simFile at which the string occurs
 				length  - the length of the string
*******************************************************************************/

static U32 readHexFromSimfile( UBYTE *simFile, int length )
{
	U32 total = 0;
	int index;
	
	for ( index = 0; index < length; index++ )
	{
		total = ( total << 8 ) + simFile[index];
	}
  
	return total;
}

/*******************************************************************************

 $Function:    	writeHexToSimfile

 $Description:	Writes a hex string (MSB first) to a sim file
 
 $Returns:		None

 $Arguments:	simFile - the point in the simFile at which the string occurs
 				length  - the length of the string
*******************************************************************************/

static void writeHexToSimfile( UBYTE *simFile, U32 value, int length )
{
	int index;

#ifdef TRACE_MMIHOMEZONE
	TRACE_EVENT_P1("Hex of %X is:", value);
#endif

	/* Note: '-1' below clarification:
	 * E.g. index=0, length=4: most significant byte is number shifted 3 bytes right. */
	 
	for ( index = 0; index < length; index++ )
	{
		simFile[index] = (value >> ((length-index-1)*8)) & 0xFF;	/* SPR877 - SH - wrong before, added *8 */
#ifdef TRACE_MMIHOMEZONE
		TRACE_EVENT_P2("Simfile %d is %X", index,  simFile[index]);
#endif
	}
  
	return;
}