mxd_porting_sharp2093.c

mxd_tuner_ref_Ax.x.xxx :为了您使用方便

/*!
 *
 * \file    mxd_porting_sharp2093.c
 *
 * \brief	API porting for sharp tuner .
 *
 * C files to define the basic functions for maxscend SDK, 
 * which will be used in the custom application.
 *
 * \par    Include files
 *    - mxd_porting_sharp2093.h
 *
 * \par    Functions
 *    - MxdPorting_InitTuner
 *    - MxdPorting_SetFreq
 *    - MxdPorting_GetTunerStatus
 * \par    Copyright (c) 2007 Maxscend Technologies Inc. All rights reserved
 *
 * PROPRIETARY RIGHTS of Maxscend Technologies Inc. are involved in
 * the subject matter of this material.  All manufacturing, reproduction, 
 * use, and sales rights pertaining to this subject matter are governed 
 * by the license agreement.  The recipient of this software implicitly 
 * accepts the terms of the license.
 * 
 * \version
 * Revision of last commit: $Rev:: 169                        $
 * Author of last commit  : $Author:: MAXSCEND\yang.liu       $
 * Date of last commit    : $Date:: 2007-10-18 17:07:19 +0800#$
 *
 *
 * \par    Modification History 
 * [ Revision  data  author Bugzilla ID ] 
 * [ Description ]
 *
 */

#include "mxd_porting_sharp2093.h"

/*!
 * Init for tuner, including demod for tuner and tuner itself
 *
 * \param hDevice    [ in ] Device handle
 *
 * \return Return code by MXD_RTN_CODE_E enumeration
 *
 * \remarks 
 *
 */
MXD_RTN_CODE_E MXD_API MxdPorting_Sharp2093InitTuner (IN HMXDDEV hDevice)
{
	MXD_RTN_CODE_E eRtnCode = MXD_RTN_OK;

	/*
	 * Setup tuner interface
	 */
	DDS_WriteReg( hDevice, COMMON_TIC_CONTROL_REG, SHARP_CONTROL_REG_VAL );
	DDS_WriteReg( hDevice, COMMON_TIC_I2C_BIT_RATE_REG, SHARP_I2C_BITRATE_REG_VAL );
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_SLAVE_ADDR_REG, SHARP_SALVE_ADDR_VAL );
	DDS_WriteReg( hDevice, COMMON_TIC_HOST_ACCESS_BYTE_NUM_REG, SHARP_ACCESS_BYTE_NUM_VAL );

	/* PWM setting */
	DDS_WriteReg( hDevice, DTMB_TDP_PWM_INI_REG, 0x32 );/*PWM init value*/	
	DDS_WriteReg( hDevice,  COMMON_ADC_MODE_CTRL_REG, 0xde );
	DDS_WriteReg( hDevice, DTMB_TDP_PWM_CONTROL_REG, 0x44 );
	DDS_WriteReg( hDevice, DTMB_TDP_PWM_CLK_STEP_REG, 0x64 );

	return eRtnCode;
}/* enf of MxdPorting_InitTuner( )*/
 
/*!
 * Tune the tuner to the frequency, this function should be used 
 * after MXD_TIF_InitTuner having been called.
 *
 * \param hDevice    [ in ] Device handle
 * \param freqHz     [ in ] frequency to be tuned, unit: Hz
 *
 * \return Return code by MXD_RTN_CODE_E enumeration
 *
 * \remarks 
 *
 */
MXD_RTN_CODE_E MXD_API MxdPorting_Sharp2093SetFreq (
							IN HMXDDEV hDevice,
							IN MXD_U32 freqHz )
{
	MXD_U32 flo;   /* loacl oscillator frequency*/
	MXD_U32 fclk; 
	MXD_U8 nref; /* reference diveder ratio*/
	MXD_U32 npro; /* programmable divider ratio */
	MXD_U8 cpVal;/* charge pump */
	MXD_U8 bsVal;/* band setting */
	MXD_U8 dividerByte1,dividerByte2;
	MXD_U8 controlByte1,controlByte2,controlByte3;
	MXD_U8 i;
	MXD_U8 ticStatus;
	MXD_U32 freqKHz;
	MXD_RTN_CODE_E eRtnCode = MXD_RTN_FAIL;

	freqKHz	= freqHz/1000;
	fclk = 4000; /* 4MHz */
	nref = 24;
	flo = freqKHz + 36167;
	npro = flo*nref;
	npro = npro/fclk;
	npro =(MXD_U16)(npro) & 0xffff;

	dividerByte1= (MXD_U8)(npro>>8);
	dividerByte2= (MXD_U8)npro;

	/* Frequency band setting */
	if(     (freqHz>50500000)&&(freqHz<=146900000))
	{
		bsVal= 0x1;
	}
	else if((freqHz>=147000000)&&(freqHz<=429800000))
	{
		bsVal = 0x2;
	}
	else if((freqHz>=430000000)&&(freqHz<=858000000))
	{
		bsVal = 0x4;
	}

 	/* charge pump setting */
	if ( (freqHz>=147000000)&&(freqHz<=239900000) ) 
	{
		cpVal = 0x1; 
	}
	else if( ( (freqHz>=50500000)&&(freqHz<=99900000) ) || ( (freqHz>=240000000)&&(freqHz<=309900000) ) )
	{
		cpVal= 0x2 ;
	}
	else if( ( (freqHz>=100000000)&&(freqHz<=121900000) ) || ( (freqHz>=310000000)&&(freqHz<=379900000) ) )
	{
		cpVal = 0x3 ;
	}
	else if( ( (freqHz>=122000000)&&(freqHz<=128900000) ) || ( (freqHz>=380000000)&&(freqHz<=429900000) )
		  || ( (freqHz>=430000000)&&(freqHz<=577900000) ) )
	{
		cpVal = 0x4 ;
	}
	else if( ( (freqHz>=129000000)&&(freqHz<=135900000) ) || ( (freqHz>=578000000)&&(freqHz<=649900000) ) )
	{
		cpVal = 0x5 ;
	}
	else if( ( (freqHz>=136000000)&&(freqHz<=142500000) ) || ( (freqHz>=650000000)&&(freqHz<=745900000) ) )
	{
		cpVal = 0x6 ;
	}
	else if( ( (freqHz>=142600000)&&(freqHz<=146900000) ) || ( (freqHz>=745900000)&&(freqHz<=858000000) ) )
	{
		cpVal = 0x7;
	}
	controlByte2 = (MXD_U8)(cpVal<<5)|(0x10)|bsVal;

	/*normal mode */
	controlByte1 = 0xca;
	controlByte3 = 0x80;

	/* write tuner registers */
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_WRDATA_D_REG, controlByte3 );
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_WRDATA_C_REG, controlByte2 );
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_WRDATA_B_REG, controlByte1 );
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_WRDATA_A_REG, dividerByte2);
	DDS_WriteReg( hDevice, COMMON_TIC_TUNER_WRADDR_REG, dividerByte1);
	for( i=0; i<10; i++ )
	{
		eRtnCode = DDS_ReadReg( hDevice, COMMON_TIC_STATUS_REG, &ticStatus );
		if(MXD_SUCCESS(eRtnCode))
		{
			if( ticStatus & 0x01 )
			{				
				return MXD_RTN_OK;
			}
		}
	}	
	return eRtnCode;
}/* end of MxdPorting_SetFreq( )*/

/*!
 * Get tuner status. If locked, then return ok, if un-locked, then return failed.
 *
 * \param hDevice    [ in ] Device handle
 *
 * \return Return code by MXD_RTN_CODE_E enumeration
 *
 * \remarks 
 *
 */
MXD_RTN_CODE_E MXD_API MxdPorting_Sharp2093GetTunerStatus (IN HMXDDEV hDevice)
{
	MXD_RTN_CODE_E eRtnCode = MXD_RTN_FAIL;
	MXD_U8 regVal;
	MXD_U8 i;

	/* Read status byte*/
	for(i=0; i<200; i++)
	{
		DDS_WriteReg( hDevice, COMMON_TIC_TUNER_RDADDR_REG, 0x01 );
		DDS_ReadReg( hDevice, COMMON_TIC_TUNER_RDDATA_A_REG, &regVal );
		if( (regVal&0x50) == 0x50 )
		{
			return MXD_RTN_OK; 
		}
	}
	return eRtnCode;
}/* end of MxdPorting_GetTunerStatus( )*/

/*end of mxd_porting_sharp2093.c */