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/* includes */
#include "ctrlEnv/mvCtrlEnvLib.h"
#include "rtc/ext_rtc/mvDS133x.h"
#include "rtc/ext_rtc/mvDS133xReg.h"

static MV_VOID mvRtcCharWrite(MV_U32 offset, MV_U8 data);
static MV_VOID mvRtcCharRead(MV_U32 offset, MV_U8 *data);

#define RTC_I2C_CH MV_BOARD_RTC_I2C_CHANNEL

/*******************************************************************************
* mvRtcDS133xAlarmSet - Set the Alarm of the Real time clock
*
* DESCRIPTION:
*
* INPUT:
*       time - A pointer to a structure RTC_TIME (defined in mvDS133x.h).
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvRtcDS133xAlarmSet(MV_RTC_TIME *time)
{
	return;
}
/*******************************************************************************
* mvRtcDS133xTimeSet - Update the Real Time Clock.
*
* DESCRIPTION:
*       This function sets a new time and date to the RTC from the given
*       structure RTC_TIME . All fields within the structure must be assigned
*		with a value prior to the use of this function.
*
* INPUT:
*       time - A pointer to a structure RTC_TIME (defined in mvDS133x.h).
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvRtcDS133xTimeSet(MV_RTC_TIME *time)
{
	MV_U8 tempValue;
	MV_U8 tens;
	MV_U8 single;

	/* seconds */
	tens = time->seconds / 10;
	single = time->seconds % 10;
	tempValue = ((tens << RTC_CLOCK_10SECONDS_SHF) & RTC_CLOCK_10SECONDS_MSK)|
				((single << RTC_CLOCK_SECONDS_SHF) & RTC_CLOCK_SECONDS_MSK) ;
	mvRtcCharWrite(RTC_CLOCK_SECONDS, tempValue);

	/* minutes */
	tens = time->minutes / 10;
	single = time->minutes % 10;
	tempValue = ((tens  << RTC_CLOCK_10MINUTES_SHF) & RTC_CLOCK_10MINUTES_MSK)|
			    ((single << RTC_CLOCK_MINUTES_SHF) & RTC_CLOCK_MINUTES_MSK) ;
	mvRtcCharWrite(RTC_CLOCK_MINUTES, tempValue);

	/* hours (24) */
	tens = time->hours / 10;
	single = time->hours % 10;
	tempValue = ((tens << RTC_CLOCK_10HOURS_SHF) & RTC_CLOCK_10HOURS_MSK2)|
				((single << RTC_CLOCK_HOURS_SHF) & RTC_CLOCK_HOURS_MSK);
	mvRtcCharWrite(RTC_CLOCK_HOUR, tempValue);

	/* day */
	single = ++(time->day);
	tempValue = ((single << RTC_CLOCK_DAY_SHF) & RTC_CLOCK_DAY_MSK) ;
	mvRtcCharWrite(RTC_CLOCK_DAY, tempValue);

	/* date */
	tens = time->date / 10;
	single = time->date % 10;
	tempValue = ((tens << RTC_CLOCK_10DATE_SHF) & RTC_CLOCK_10DATE_MSK)|
				((single << RTC_CLOCK_DATE_SHF) & RTC_CLOCK_DATE_MSK) ;

	/* month */
	mvRtcCharWrite(RTC_CLOCK_DATE, tempValue);
	tens = time->month / 10;
	single = time->month % 10;
	tempValue = ((tens << RTC_CLOCK_10MONTH_SHF) & RTC_CLOCK_10MONTH_MSK)|
				((single << RTC_CLOCK_MONTH_SHF) & RTC_CLOCK_MONTH_MSK);
	mvRtcCharWrite(RTC_CLOCK_MONTH_CENTURY, tempValue);

	/* year */
	tens = time->year / 10;
	single = time->year % 10;
	tempValue = ((tens << RTC_CLOCK_10YEAR_SHF) & RTC_CLOCK_10YEAR_MSK)|
				((single << RTC_CLOCK_YEAR_SHF) & RTC_CLOCK_YEAR_MSK);
	mvRtcCharWrite(RTC_CLOCK_YEAR, tempValue);

	return;
}

/*******************************************************************************
* mvRtcDS133xTimeGet - Read the time from the RTC.
*
* DESCRIPTION:
*       This function reads the current time and date from the RTC into the
*       structure RTC_TIME (defined in mvDS133x.h).
*
* INPUT:
*       time - A pointer to a structure TIME (defined in mvDS133x.h).
*
* OUTPUT:
*       The structure RTC_TIME is updated with the time read from the RTC.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvRtcDS133xTimeGet(MV_RTC_TIME *time)
{
	MV_U8 tempValue;
	MV_U32 tens;
	MV_U32 single;

	/* seconds */
	mvRtcCharRead(RTC_CLOCK_SECONDS, &tempValue);
	tens = (tempValue & RTC_CLOCK_10SECONDS_MSK) >> RTC_CLOCK_10SECONDS_SHF;
	single = (tempValue & RTC_CLOCK_SECONDS_MSK) >> RTC_CLOCK_SECONDS_SHF ;
	time->seconds = 10*tens + single;

	/* minutes */
	mvRtcCharRead(RTC_CLOCK_MINUTES, &tempValue);
	tens = (tempValue & RTC_CLOCK_10MINUTES_MSK) >> RTC_CLOCK_10MINUTES_SHF;
	single = (tempValue & RTC_CLOCK_MINUTES_MSK) >> RTC_CLOCK_MINUTES_SHF;
	time->minutes = 10*tens + single;

	/* hours */
	mvRtcCharRead(RTC_CLOCK_HOUR, &tempValue);
	tens = (tempValue & RTC_CLOCK_10HOURS_MSK2) >> RTC_CLOCK_10HOURS_SHF;
	single = (tempValue & RTC_CLOCK_HOURS_MSK) >> RTC_CLOCK_HOURS_SHF;
	time->hours = 10*tens + single;

	/* day */
	mvRtcCharRead(RTC_CLOCK_DAY, &tempValue);
	time->day = (tempValue & RTC_CLOCK_DAY_MSK) >> RTC_CLOCK_DAY_SHF ;
	time->day--;

	/* date */
	mvRtcCharRead(RTC_CLOCK_DATE, &tempValue);
	tens = (tempValue & RTC_CLOCK_10DATE_MSK) >> RTC_CLOCK_10DATE_SHF;
	single = (tempValue & RTC_CLOCK_DATE_MSK) >> RTC_CLOCK_DATE_SHF;
	time->date = 10*tens + single;

	/* century/ month */
	mvRtcCharRead(RTC_CLOCK_MONTH_CENTURY, &tempValue);
	tens = (tempValue & RTC_CLOCK_10MONTH_MSK) >> RTC_CLOCK_10MONTH_SHF;
	single = (tempValue & RTC_CLOCK_MONTH_MSK) >> RTC_CLOCK_MONTH_SHF;
	time->month = 10*tens + single;
	time->century = (tempValue & RTC_CLOCK_CENTURY_MSK)>>RTC_CLOCK_CENTURY_SHF;

	/* year */
	mvRtcCharRead(RTC_CLOCK_YEAR, &tempValue);
	tens = (tempValue & RTC_CLOCK_10YEAR_MSK) >> RTC_CLOCK_10YEAR_SHF;
	single = (tempValue & RTC_CLOCK_YEAR_MSK) >> RTC_CLOCK_YEAR_SHF;
	time->year = 10*tens + single;

	return;
}

/*******************************************************************************
* mvRtcDS1339Init - Initialize the clock.
*
* DESCRIPTION:
*       This function initialize the clock registers and read\write functions
*
* INPUT:
*       None.
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvRtcDS1339Init(MV_VOID)
{
	MV_U8 ucTemp;

	/* We will disable interrupts as default .*/
	mvRtcCharRead(RTC1339_CONTROL, &ucTemp);
	ucTemp |= RTC_CONTROL_INTCN_BIT;
	mvRtcCharWrite(RTC1339_CONTROL, ucTemp);

	/* disable trickle */
	mvRtcCharWrite(RTC_TRICKLE_CHARGE, 0);

	return;
}


/*******************************************************************************
* mvRtcDS1338Init - Initialize the clock.
*
* DESCRIPTION:
*       This function initialize the clock registers and read\write functions
*
* INPUT:
*       None.
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvRtcDS1338Init(MV_VOID)
{
	MV_U8 ucTemp;

	/* We will enable OSC .*/
	mvRtcCharRead(RTC_CLOCK_SECONDS, &ucTemp);
	ucTemp &= ~RTC_CONTROL_EOSC_MSK;
	mvRtcCharWrite(RTC_CLOCK_SECONDS, ucTemp);

	return;
}

/* assumption twsi is initialized !!! */
/*******************************************************************************
* mvRtcCharRead - Read a char from the RTC.
*
* DESCRIPTION:
*       This function reads a char from the RTC offset.
*
* INPUT:
*       offset - offset
*
* OUTPUT:
*       data - char read from offset offset.
*
* RETURN:
*       None.
*
*******************************************************************************/
static MV_VOID	mvRtcCharRead(MV_U32 offset, MV_U8 *data)
{
	MV_TWSI_SLAVE   twsiSlave;

	twsiSlave.slaveAddr.type = mvBoardRtcTwsiAddrTypeGet();
	twsiSlave.slaveAddr.address = mvBoardRtcTwsiAddrGet();
	twsiSlave.validOffset = MV_TRUE;
	twsiSlave.offset = offset;
	twsiSlave.moreThen256 = MV_FALSE;
	mvTwsiRead(RTC_I2C_CH, &twsiSlave, data, 1);

	return;
}

/*******************************************************************************
* mvRtcCharWrite - Write a char from the RTC.
*
* DESCRIPTION:
*       This function writes a char to the RTC offset.
*
* INPUT:
*       offset - offset
*
* OUTPUT:
*       data - char write to addr address.
*
* RETURN:
*       None.
*
*******************************************************************************/
static MV_VOID mvRtcCharWrite(MV_U32 offset, MV_U8 data)
{
	MV_TWSI_SLAVE twsiSlave;

	twsiSlave.slaveAddr.type = mvBoardRtcTwsiAddrTypeGet();
	twsiSlave.slaveAddr.address = mvBoardRtcTwsiAddrGet();
	twsiSlave.validOffset = MV_TRUE;
	twsiSlave.offset = offset;
	twsiSlave.moreThen256 = MV_FALSE;
	mvTwsiWrite(RTC_I2C_CH, &twsiSlave, &data, 1);

	return;
}