fec_init.c

基于vxworks操作系统的电话语音平台系统

/************************************************************************/
/*                                                              		*/
/*                                                              		*/
/* (C) Copyright Bangyan Information Technology Ltd, 2000/9.            */
/*  All right reserved                                          		*/
/*                                                              		*/
/* Author: Zhuguosheng 	                                  				*/
/*                                                              		*/
/* Description:                                                 		*/
/*     Driver Set - SCC FEC initiating specific routines.            	*/
/*                                                              		*/
/* Routines                                                     		*/
/*		Delay                                                           */
/*		FecInit                                                         */
/*		FecTxRxBDInit                                                   */
/*		StartFec                                                        */
/*		InitFec                                                         */
/*                                                                      */
/************************************************************************/
#include "PUB\PUB_INCL.H"
#include "DRVs\DRV860\PUB\NETCOMM.H"       /* global defines */
#include "DRVs\DRV860\PUB\D860_PUB.H"
#include "DRVs\DRV860\PUB\MPC860.H"       /* IMMR definitions and declarations */
#include "DRVs\DRV860\PUB\MASKS860.h"      /* Global masks header file */
#include "FEC.H"

extern EPPC *quicc;

STATIC VOID Delay(UWORD num);
STATIC VOID InitMII( VOID );
STATIC VOID FecTxRxBDInit( VOID );
VOID StartFec( VOID );
VOID FecInit( VOID );

QUICC_BD	FecRxBd[MAX_FEC_RX_BDS], FecTxBd[MAX_FEC_TX_BDS];
UI CurFecRxBd=0,CurFecTxBd=0;


STATIC VOID Dummy( VOID )
{
	UC i=0;
	i++;
}
STATIC VOID Delay(UL num)
{
	while(num--)
	{
		Dummy();
	}
}

STATIC VOID InitMII_verB( VOID )
{
	quicc->t_ecntrl = T_ECNTRL_ETHERNETRESET;  /* Put the FEC in reset state */
	Delay(10000);

	quicc->t_imask = T_IEVENT_RECEIVEFRAMEINT|T_IEVENT_TRANSMITFRAMEINT;
	quicc->t_ievent = 0x00000000;
	quicc->t_ivec = ( FEC_LEVEL << T_IVEC_LEVEL );   /* Set intrpt level */

	quicc->t_addr_low =  STATION_ADDR_LOW;   /* First four bytes of address */
	quicc->t_addr_high = STATION_ADDR_HIGH;  /* Last two bytes of address */

	quicc->t_hash_table_high = 0;
	quicc->t_hash_table_low  = 0;

	quicc->t_r_buff_size = RX_BUFFER_SIZE;

	/*-----------------------------------------------*/
	/* Configure start of Rx and Tx BD rings         */
	/*-----------------------------------------------*/
	quicc->t_r_des_start =  (UL) &FecRxBd[0];
	quicc->t_x_des_start =  (UL) &FecTxBd[0];

   /*-----------------------------------------------*/
   /* Configure FEC receiver mode:                  */
   /*    Not promiscuous, MII interface,            */
   /*    full duplex (i.e. DRT not set), loopback   */
   /*-----------------------------------------------*/

	#ifdef FEC_INTERNAL_LOOPBACK
	quicc->t_r_cntrl =  (MIIMODE|PROMISCUOUS|INTERNALLOOPBACK);
	#else
	quicc->t_r_cntrl =  (MIIMODE|PROMISCUOUS);
	#endif

	quicc->t_x_cntrl =  FULLDUPLEXENABLE;
	quicc->t_fun_code =  0x78000000;
	quicc->t_mii_speed =  (0xC <<T_MII_SPEED_MSPD);
	quicc->t_r_hash =  (0x000005F2);			/* 1522--allows for VLAN tags, no affect*/

	/* Configure Port D pins to enable MII interface */
	quicc->pio_pdpar =  0x1FFF;
	quicc->pio_pddir =  0x1C58;
}

STATIC VOID InitMII_verD( VOID )
{
	quicc->t_ecntrl = T_ECNTRL_ETHERNETRESET;  /* Put the FEC in reset state */
	Delay(10000);

	quicc->t_imask = T_IEVENT_RECEIVEFRAMEINT|T_IEVENT_TRANSMITFRAMEINT;
	quicc->t_ievent = 0x00000000;
	quicc->t_ivec = ( FEC_LEVEL << T_IVEC_LEVEL );   /* Set intrpt level */

	quicc->t_wmrk = 0x00000003;						/* special for D */	

	quicc->t_addr_low =  STATION_ADDR_LOW;   /* First four bytes of address */
	quicc->t_addr_high = STATION_ADDR_HIGH;  /* Last two bytes of address */

	quicc->t_hash_table_high = 0;
	quicc->t_hash_table_low  = 0;

	quicc->t_r_buff_size = RX_BUFFER_SIZE;

	/*-----------------------------------------------*/
	/* Configure start of Rx and Tx BD rings         */
	/*-----------------------------------------------*/
	quicc->t_r_des_start =  (UL) &FecRxBd[0];
	quicc->t_x_des_start =  (UL) &FecTxBd[0];

   /*-----------------------------------------------*/
   /* Configure FEC receiver mode:                  */
   /*    Not promiscuous, MII interface,            */
   /*    full duplex (i.e. DRT not set), loopback   */
   /*-----------------------------------------------*/

	#ifdef FEC_INTERNAL_LOOPBACK
	quicc->t_r_cntrl =  (MIIMODE|PROMISCUOUS|INTERNALLOOPBACK);
	#else
	quicc->t_r_cntrl =  (MIIMODE|PROMISCUOUS);
	#endif

	quicc->t_x_cntrl =  FULLDUPLEXENABLE;
	quicc->t_fun_code =  0x78000000;
	quicc->t_mii_speed =  (0xC <<T_MII_SPEED_MSPD);
	quicc->t_r_hash =  (0x000005F2);				/* 1522--allows for VLAN tags, no affect*/

	/*Configure Port D pins to enable MII interface, special for verD */
	quicc->pio_pdpar =  0x1FFF;
	quicc->pio_pddir =  0x1FFF;
}

STATIC VOID FecTxRxBDInit( VOID )
{
	UI i;

	quicc->t_ecntrl = T_ECNTRL_ETHERNETRESET;  /* Put the FEC in reset state */

	/* Set FEC RecvBDs */
	for( i=0; i<MAX_FEC_RX_BDS; i++ )
	{
		FecRxBd[i].status = RX_BD_E;
		FecRxBd[i].length = 0;
		FecRxBd[i].buf	  = (UC*)BYMalloc(RX_BUFFER_SIZE+FEC_CRC_LEN);
	}
	FecRxBd[MAX_FEC_RX_BDS-1].status |=RX_BD_W;


	/* Set FEC SendBDs */
	for( i=0; i<MAX_FEC_TX_BDS; i++ )
	{
		FecTxBd[i].status = 0;
		FecTxBd[i].length = 0;
		FecTxBd[i].buf	  = (UC*)BYMalloc(TX_BUFFER_SIZE);
	}
	FecTxBd[MAX_FEC_TX_BDS-1].status |= TX_BD_W;
}

STATIC VOID StartFec_verB( VOID )
{
	quicc->t_ecntrl =  T_ECNTRL_ETHERNETENABLE;
	quicc->t_r_des_active =  FEC_BD_ACTIVE;
	quicc->t_x_des_active =  FEC_BD_ACTIVE;
}

STATIC VOID StartFec_verD( VOID )
{
	quicc->t_ecntrl = (T_ECNTRL_ETHERNETENABLE|T_ECNTRL_ETHERNETPINMUX);
	quicc->t_r_des_active =  FEC_BD_ACTIVE;
	quicc->t_x_des_active =  FEC_BD_ACTIVE;
}

VOID StartFec( VOID )
{
#ifdef MPC860T_VERSION_B
	StartFec_verB( );
#endif

#ifdef MPC860T_VERSION_D
	StartFec_verD( );
#endif
}

VOID FecInterruptInit(VOID)
{

}

STATIC VOID InitMII( VOID )
{
#ifdef MPC860T_VERSION_B
	InitMII_verB( );
#endif

#ifdef MPC860T_VERSION_D
	InitMII_verD( );
#endif
}

VOID FecInit( VOID )
{
	FecInterruptInit();

	FecTxRxBDInit();

	InitMII();
}