/****************************************************************************
*
*	Name:			IP210 MDC_MDIO.C
*
*	Description:	MAC Driver
*
*	Copyright:		(c) 2005-2050    IC Plus Crop.  
*	                All rights reserved.	by DeNa
*
*	Version:		v1.10
****************************************************************************/

#include "type_def.h"
#include "ip210reg.h"


u8_t	MDC_SPEED	=	MDC_SPEED_640;
u8_t	MDC_PREM_OFF=	0x0;

/******************************************************************************
*
*  Function:    Read_MDC
*
*  Description: MDC/MDIO Read function,IP175 , IP178 MODE (5+5 bits)
*               
*  Parameters:  phyad: PHY address
*				regad: Reg address
*               
*  Returns:     16bits Register Value
*               
*******************************************************************************/
u16_t Read_MDC(u8_t phyad,u8_t regad)
{	u8_t	reg;
	u16_t	ret_reg,i=0;
	IP210RegWrite(REG_MDC_PHYADDR, phyad );
	IP210RegWrite(REG_MDC_REGADDR, regad );
//	IP210RegWrite(REG_MDC_CONTROL, MDC_SPEED_640|MDC_READ|MDC_START);
	IP210RegWrite(REG_MDC_CONTROL, MDC_SPEED | MDC_READ |MDC_PREM_OFF| MDC_START);
	do{
	  reg=IP210RegRead(REG_MDC_CONTROL);
	  i++;
	}while( (reg& MDC_START) &&(i<30000) );
	ret_reg=IP210RegRead(REG_MDC_DATA_HIGH);
	ret_reg<<=8;
	ret_reg|=IP210RegRead(REG_MDC_DATA_LOW);
	return ret_reg;
}


/******************************************************************************
*
*  Function:    Write_MDC
*
*  Description: MDC/MDIO Write function,   IP175/178 MODE (5+5 bits)
*               
*  Parameters:  phyad	: PHY address
*				regad	: Reg address
*				Regdata	: data to write
*               
*  Returns:     No return value
*               
*******************************************************************************/
void Write_MDC(u8_t phyad,u8_t regad,u16_t Regdata)
{
	u8_t	reg;
	u16_t	i=0;
	IP210RegWrite(REG_MDC_DATA_HIGH	, (u8_t)(Regdata>>8));
	IP210RegWrite(REG_MDC_DATA_LOW	, (u8_t)(Regdata&0xff));
	IP210RegWrite(REG_MDC_PHYADDR		, phyad );
	IP210RegWrite(REG_MDC_REGADDR		, regad );
//	IP210RegWrite(REG_MDC_CONTROL, MDC_SPEED_640 | MDC_WRITE | MDC_START );
	IP210RegWrite(REG_MDC_CONTROL, MDC_SPEED | MDC_WRITE |MDC_PREM_OFF| MDC_START );
	do{
	  reg=IP210RegRead(REG_MDC_CONTROL);
	  i++;
	}while( (reg & MDC_START) &&(i<30000) );
}



/******************************************************************************
*
*  Function:    Read_MDC26
*
*  Description: MDC/MDIO Read function,IP1726/1826 MODE (8+2 bits)
*               
*  Parameters:  phyad: PHY address
*				regad: Reg address
*               
*  Returns:     16bits Register Value
*               
*******************************************************************************/
/*u16_t Read_MDC26(u8_t phyad,u8_t regad)
{	
	return Read_MDC(   ( ((phyad&0x3)<<3)|(regad>>5) )	,(regad & 0x1f) );
}
*/


/******************************************************************************
*
*  Function:    Write_MDC26
*
*  Description: MDC/MDIO Write function,   IP1726/1726 MODE (8+2 bits)
*               
*  Parameters:  phyad	: PHY address
*				regad	: Reg address
*				Regdata	: data to write
*               
*  Returns:     No return value
*               
*******************************************************************************/
/*void Write_MDC26(u8_t phyad,u8_t regad,u16_t Regdata)
{
	Write_MDC(  ( ((phyad&0x3)<<3)|(regad>>5) ) , (regad & 0x1f),Regdata );
}*/