📄 lan91c111_phy.c
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/*
*
* Copyright (c) Standard MicroSystems Corporation. All Rights Reserved.
*
* LAN91C111 Driver for Windows CE .NET
*
* Revision History
*_______________________________________________________________________________
* Author Date Version Description
*_______________________________________________________________________________
* Pramod Bhardwaj 6/18/2002 0.1 Beta Release
* Pramod Bhardwaj 7/15/2002 1.0 Release
* Pramod Bhardwaj 1/22/2003 1.1 Removed some platform dependencies
* Pramod Bhardwaj 4/15/2003 2.0 Added support for alloc interrupt
*_______________________________________________________________________________
*
*
*Description:
* Functions for accessing the phy. And contains the Autonegotiating
* procedure for establishing the link
*
*
*/
#include <Ndis.h>
#include "LAN91C111_Adapter.h"
/*
Function Name : InputMDO
Description :
Reads MII serial data bit, using the Management Interface reg.
Parameters :
UINT IOAddress - IOAddress to read (or the IOAddr, for Manag. Intr. Reg
Return Value :
Value in the Management Interface register. Note that this is the
value of the complete register not just the MDI
*/
USHORT InputMDO ( ULONG IOAddress )
{
USHORT phydat;
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111==> InputMDO\r\n")));
NdisRawWritePortUshort( IOAddress, (USHORT) 0 );
NdisRawWritePortUshort( IOAddress, (USHORT) MGMT_MCLK );
NdisRawReadPortUshort( IOAddress, &phydat );
NdisRawWritePortUshort( IOAddress, (USHORT) 0 );
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== InputMDO\r\n")));
return( phydat );
}
/*
Function Name : OutputMDO
Description :
Write a bit to the MII. The value to write is based on the second
Parameter. If the second parameter is 0 then 0 is written to the MII, similarly 1
if the second parameter is 1. When the second parameter is 2 the output is tristated
on the MII.
Parameters : ULONG IOAddress - Address to write
UCHAR lev - if 0 - write 0
if 1 - write 1
if 2 - write Z (tristate)
Return Value :
VOID
*/
VOID OutputMDO ( ULONG IOAddress, UCHAR lev )
{
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 ==> OutputMDO \r\n")));
if( lev == 0 )
{
NdisRawWritePortUshort( IOAddress, (USHORT) MGMT_MDOE );
NdisRawWritePortUshort( IOAddress, (USHORT) ( MGMT_MCLK + MGMT_MDOE ) );
NdisRawWritePortUshort( IOAddress, (USHORT) MGMT_MDOE );
}
else
{
if( lev == 1 )
{
NdisRawWritePortUshort( IOAddress, (USHORT) ( MGMT_MDO + MGMT_MDOE ) );
NdisRawWritePortUshort( IOAddress, (USHORT) ( MGMT_MCLK + MGMT_MDO + MGMT_MDOE ) );
NdisRawWritePortUshort( IOAddress, (USHORT) ( MGMT_MDO + MGMT_MDOE ) );
}
if (lev==2)
{
NdisRawWritePortUshort( IOAddress, (USHORT) 0 );
NdisRawWritePortUshort( IOAddress, (USHORT) (MGMT_MCLK) );
NdisRawWritePortUshort( IOAddress, (USHORT) 0 );
}
}
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <<= OutputMDO \r\n")));
}
/*
Function Name : ReadPhyRegister
Description :
Reads the PHY register using the PHY read procedure, described in
the Application Notes/Tech. Ref. Manual
Parameters :
UINT IOBase - Base address of the chip
UCHAR PhyReg - Register to read
Return Value :
UINT - Value read from the phy register specified by PhyReg
*/
UINT ReadPhyRegister ( ULONG IOBase, UCHAR PhyReg)
{
UINT Counter;
USHORT PhyVal, PhyData;
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 ==> ReadPhyRegister \r\n")));
// 32 consecutive ones on MDO to establish sync
NdisRawWritePortUshort( IOBase + BANK_SELECT, (USHORT) 3 );
NdisRawWritePortUshort( IOBase + BANK3_MGMT, (USHORT) ( MGMT_MDOE + MGMT_MDO ) );
for( Counter = 1; Counter <= 32; Counter++ )
{
NdisRawWritePortUshort( IOBase + BANK3_MGMT,(USHORT) ( MGMT_MDOE + MGMT_MDO ) );
NdisRawWritePortUshort( IOBase + BANK3_MGMT,(USHORT) ( MGMT_MCLK + MGMT_MDOE + MGMT_MDO ) );
}
NdisRawWritePortUshort( IOBase + BANK3_MGMT, (USHORT) MGMT_MDOE );
// start code <01>
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
// read command <10>
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
// write the phyaddress - which is five 0s for LAN91C111
for ( Counter = 1; Counter <= 5; Counter++)
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
//Write the phy register to read
//Highest bit goes out first..... :)
for (Counter = 1; Counter <= 5; Counter++)
{
if( ( PhyReg & 0x10 ) != 0 ) // outmdo(1);
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
else
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
PhyReg <<= 1;
}
// turnaround mdo is tristated
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 2 );
//Read the data...
PhyData = 0; // Stores the bit value
PhyVal = 0; // Stores the complete value of the phy register
for( Counter = 0; Counter <= 0xf; Counter++ )
{
PhyVal <<= 1;
PhyData = InputMDO( (ULONG)( IOBase + BANK3_MGMT ) );
if(0x2 & PhyData)
PhyVal |= 1;
}
// turnaround mdo is tristated
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 2 );
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== ReadPhyRegister \r\n")));
return (PhyVal);
}
/*
Function Name : WritePhyRegister
Description :
Writes the PHY register using the PHY Write procedure, described in
the Application Notes/Tech. Ref. Manual
Parameters :
UINT IOBase - Base address of the chip
UCHAR PhyReg - Register to Write
USHORT value - Value to write
Return Value :
void
*/
void WritePhyRegister ( ULONG IOBase, UCHAR PhyReg, USHORT Value)
{
UINT Counter;
USHORT PhyVal, PhyData;
//PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 ==> WritePhyRegister \r\n")));
// 32 consecutive ones on MDO to establish sync
NdisRawWritePortUshort( IOBase + BANK_SELECT, (USHORT) 3 );
NdisRawWritePortUshort( IOBase + BANK3_MGMT, (USHORT) ( MGMT_MDOE + MGMT_MDO ) );
for( Counter = 1; Counter <= 32; Counter++ )
{
NdisRawWritePortUshort( IOBase + BANK3_MGMT,(USHORT) ( MGMT_MDOE + MGMT_MDO ) );
NdisRawWritePortUshort( IOBase + BANK3_MGMT,(USHORT) ( MGMT_MCLK + MGMT_MDOE + MGMT_MDO ) );
}
NdisRawWritePortUshort( IOBase + BANK3_MGMT, (USHORT) MGMT_MDOE );
// start code <01>
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
// write command <01>
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
// write the phyaddress - which is five 0s for LAN91C111
for ( Counter = 1; Counter <= 5; Counter++)
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
//Write the phy register to read
//Highest bit goes out first..... :)
for (Counter = 1; Counter <= 5; Counter++)
{
if( ( PhyReg & 0x10 ) != 0 )
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 1 );
else
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 0 );
PhyReg <<= 1;
}
// turnaround mdo
OutputMDO( (ULONG) ( IOBase + BANK3_MGMT ), 1 );
OutputMDO( (ULONG) ( IOBase + BANK3_MGMT ), 0 );
//Read the data...
PhyData = 0; // Stores the bit value
PhyVal = 0; // Stores the complete value of the phy register
for( Counter = 0; Counter <= 0xf; Counter++ )
{
if (Value & 0x8000)
OutputMDO( (ULONG) ( IOBase + BANK3_MGMT ), 1 );
else
OutputMDO( (ULONG) ( IOBase + BANK3_MGMT ), 0 );
Value <<= 1;
}
// turnaround mdo is tristated
OutputMDO( (ULONG)( IOBase + BANK3_MGMT ), 2 );
}
/*
Function Name : EstablishLink
Description :
This function establishes a link based on the Auto_Negotiation variable
in the adapter structure. If the variable is true then auto negotiation is
enabled. If the variable is false then the link is manually established
by setting the speed and duplex bits. Note that the manual mode can only
select speed but the duplex is always half duplex.
Parameters :
MINIPORT_ADAPTER *Adapter - Pointer to the adapter structure
Return Value :
BOOLEAN - True is succesful, else false
*/
BOOLEAN EstablishLink(MINIPORT_ADAPTER *Adapter)
{
USHORT temp;
DWORD LocalTimer;
if (Adapter->Auto_Negotiation)
{
RestartAutoNegotiation:
//Reset the PHY
WritePhyRegister(Adapter->IOBase, 0, 0x8000);
while ( 0x8000 & ReadPhyRegister(Adapter->IOBase, 0));
Sleep(350);
//Set the MAC Register to AutoNeg
NdisRawWritePortUshort( Adapter->IOBase + BANK_SELECT, (USHORT) 0 );
NdisRawWritePortUshort( Adapter->IOBase + BANK0_RPCR, RPCR_ANEG);
//Set the PHY Register to AutoNeg
WritePhyRegister(Adapter->IOBase, 0, 0x1000);
temp = 1;
LocalTimer = GetTickCount();
do
{
temp = ReadPhyRegister(Adapter->IOBase, 1);
if (temp & 0x10) goto RestartAutoNegotiation;
if (temp & 0x20) temp = 0;
if ((GetTickCount() - LocalTimer) > 2000) break; //Wait for approx 3 seconds.. then break..
}
while (temp);
//Check for the status of the autoneg
temp = 0x4000;
LocalTimer = GetTickCount();
while (temp & 0x4000)
{
temp = ReadPhyRegister(Adapter->IOBase, 18);
if ((GetTickCount() - LocalTimer) > 2000) break; //Wait for approx 3 seconds.. then break..
}
if (!(temp & 0x4000))
{
if (temp & 0x0080)
{
Adapter->Speed = SPEED100;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== 100BASE-TX Link Detected\r\n")));
}
else
{
Adapter->Speed = SPEED10;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== 10BASE-TX Link Detected\r\n")));
}
if (temp & 0x0040)
{
Adapter->Duplex = FULL_DUPLEX;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== FULL DUPLEX Link Detected\r\n")));
}
else
{
Adapter->Duplex = HALF_DUPLEX;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== HALF DUPLEX Link Detected\r\n")));
}
Adapter->LinkStatus = MEDIA_CONNECTED;
}
else
{
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== MEDIA IS DISCONNECTED ..........\r\n")));
Adapter->LinkStatus = MEDIA_DISCONNECTED;
}
}
else
{
//Clear MII_DIS if set, after the reset
temp = ReadPhyRegister(Adapter->IOBase, 0);
if (temp & 0x0400)
WritePhyRegister(Adapter->IOBase, 0, (USHORT)(temp&0x0BFF));
//Manual Selection...
NdisRawWritePortUshort(Adapter->IOBase + BANK_SELECT, (USHORT) 0);
NdisRawReadPortUshort(Adapter->IOBase + BANK0_RPCR, &temp);
temp &= ~RPCR_ANEG; //Clear the ANET bit
if (Adapter->Speed == SPEED100)
temp |= RPCR_SPEED; //Set the bit
else
temp &= ~RPCR_SPEED; //Clear the bit
if (Adapter->Duplex == FULL_DUPLEX)
temp |= RPCR_DPLX; //Set to full duplex
else
temp &= ~RPCR_DPLX; //Test.. for 10hdx
NdisRawWritePortUshort( Adapter->IOBase + BANK0_RPCR, temp);
//Clear MII_DIS if set, after the reset
temp = ReadPhyRegister(Adapter->IOBase, 0);
if (temp & 0x0400)
WritePhyRegister(Adapter->IOBase, 0, (USHORT)(temp&0xFBFF));
temp = 0x4000;
LocalTimer = GetTickCount();
while (temp & 0x4000)
{
temp = ReadPhyRegister(Adapter->IOBase, 18);
if ((GetTickCount() - LocalTimer) > 3000) break; //Wait for approx 3 seconds.. then break..
}
if (!(temp & 0x4000))
{
if (temp & 0x0080)
{
Adapter->Speed = SPEED100;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== 100BASE-TX Link Detected\r\n")));
}
else
{
Adapter->Speed = SPEED10;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== 10BASE-TX Link Detected\r\n")));
}
if (temp & 0x0040)
{
Adapter->Duplex = FULL_DUPLEX;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== FULL DUPLEX Link Detected\r\n")));
}
else
{
Adapter->Duplex = HALF_DUPLEX;
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== HALF DUPLEX Link Detected\r\n")));
}
Adapter->LinkStatus = MEDIA_CONNECTED;
}
else
{
PrintDebugMsg(ZONE_INIT, (TEXT("LAN91C111 <== MEDIA IS DISCONNECTED ..........\r\n")));
Adapter->LinkStatus = MEDIA_DISCONNECTED;
}
}
//Setup the phy for link interrupts
WritePhyRegister(Adapter->IOBase, 19, (PHY_MASK_BASE & PHY_MASK_INT & PHY_MASK_LINK));
ReadPhyRegister(Adapter->IOBase, 18); //To clear an pending interrupts..
return TRUE;
} ⌨️ 快捷键说明
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