|
|
|
@ -57,7 +57,6 @@
|
|
|
|
|
#include "semphr.h"
|
|
|
|
|
|
|
|
|
|
/* Hardware specific includes. */
|
|
|
|
|
#include "LPC17xx_defs.h"
|
|
|
|
|
#include "EthDev_LPC17xx.h"
|
|
|
|
|
|
|
|
|
|
/* Time to wait between each inspection of the link status. */
|
|
|
|
@ -150,7 +149,6 @@ static unsigned short usSendLen = 0;
|
|
|
|
|
long lEMACInit( void )
|
|
|
|
|
{
|
|
|
|
|
long lReturn = pdPASS;
|
|
|
|
|
volatile unsigned long regv, tout;
|
|
|
|
|
unsigned long ulID1, ulID2;
|
|
|
|
|
|
|
|
|
|
/* Reset peripherals, configure port pins and registers. */
|
|
|
|
@ -162,15 +160,15 @@ unsigned long ulID1, ulID2;
|
|
|
|
|
if( ( (ulID1 << 16UL ) | ( ulID2 & 0xFFF0UL ) ) == DP83848C_ID )
|
|
|
|
|
{
|
|
|
|
|
/* Set the Ethernet MAC Address registers */
|
|
|
|
|
MAC_SA0 = ( configMAC_ADDR0 << 8 ) | configMAC_ADDR1;
|
|
|
|
|
MAC_SA1 = ( configMAC_ADDR2 << 8 ) | configMAC_ADDR3;
|
|
|
|
|
MAC_SA2 = ( configMAC_ADDR4 << 8 ) | configMAC_ADDR5;
|
|
|
|
|
EMAC->SA0 = ( configMAC_ADDR0 << 8 ) | configMAC_ADDR1;
|
|
|
|
|
EMAC->SA1 = ( configMAC_ADDR2 << 8 ) | configMAC_ADDR3;
|
|
|
|
|
EMAC->SA2 = ( configMAC_ADDR4 << 8 ) | configMAC_ADDR5;
|
|
|
|
|
|
|
|
|
|
/* Initialize Tx and Rx DMA Descriptors */
|
|
|
|
|
prvInitDescriptors();
|
|
|
|
|
|
|
|
|
|
/* Receive broadcast and perfect match packets */
|
|
|
|
|
MAC_RXFILTERCTRL = RFC_UCAST_EN | RFC_BCAST_EN | RFC_PERFECT_EN;
|
|
|
|
|
EMAC->RxFilterCtrl = RFC_UCAST_EN | RFC_BCAST_EN | RFC_PERFECT_EN;
|
|
|
|
|
|
|
|
|
|
/* Setup the PHY. */
|
|
|
|
|
prvConfigurePHY();
|
|
|
|
@ -192,11 +190,11 @@ unsigned long ulID1, ulID2;
|
|
|
|
|
uip_buf = prvGetNextBuffer();
|
|
|
|
|
|
|
|
|
|
/* Reset all interrupts */
|
|
|
|
|
MAC_INTCLEAR = ( INT_RX_OVERRUN | INT_RX_ERR | INT_RX_FIN | INT_RX_DONE | INT_TX_UNDERRUN | INT_TX_ERR | INT_TX_FIN | INT_TX_DONE | INT_SOFT_INT | INT_WAKEUP );
|
|
|
|
|
EMAC->IntClear = ( INT_RX_OVERRUN | INT_RX_ERR | INT_RX_FIN | INT_RX_DONE | INT_TX_UNDERRUN | INT_TX_ERR | INT_TX_FIN | INT_TX_DONE | INT_SOFT_INT | INT_WAKEUP );
|
|
|
|
|
|
|
|
|
|
/* Enable receive and transmit mode of MAC Ethernet core */
|
|
|
|
|
MAC_COMMAND |= ( CR_RX_EN | CR_TX_EN );
|
|
|
|
|
MAC_MAC1 |= MAC1_REC_EN;
|
|
|
|
|
EMAC->Command |= ( CR_RX_EN | CR_TX_EN );
|
|
|
|
|
EMAC->MAC1 |= MAC1_REC_EN;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return lReturn;
|
|
|
|
@ -260,12 +258,12 @@ long x, lNextBuffer = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set EMAC Receive Descriptor Registers. */
|
|
|
|
|
MAC_RXDESCRIPTOR = RX_DESC_BASE;
|
|
|
|
|
MAC_RXSTATUS = RX_STAT_BASE;
|
|
|
|
|
MAC_RXDESCRIPTORNUM = NUM_RX_FRAG - 1;
|
|
|
|
|
EMAC->RxDescriptor = RX_DESC_BASE;
|
|
|
|
|
EMAC->RxStatus = RX_STAT_BASE;
|
|
|
|
|
EMAC->RxDescriptorNumber = NUM_RX_FRAG - 1;
|
|
|
|
|
|
|
|
|
|
/* Rx Descriptors Point to 0 */
|
|
|
|
|
MAC_RXCONSUMEINDEX = 0;
|
|
|
|
|
EMAC->RxConsumeIndex = 0;
|
|
|
|
|
|
|
|
|
|
/* A buffer is not allocated to the Tx descriptors until they are actually
|
|
|
|
|
used. */
|
|
|
|
@ -277,12 +275,12 @@ long x, lNextBuffer = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set EMAC Transmit Descriptor Registers. */
|
|
|
|
|
MAC_TXDESCRIPTOR = TX_DESC_BASE;
|
|
|
|
|
MAC_TXSTATUS = TX_STAT_BASE;
|
|
|
|
|
MAC_TXDESCRIPTORNUM = NUM_TX_FRAG - 1;
|
|
|
|
|
EMAC->TxDescriptor = TX_DESC_BASE;
|
|
|
|
|
EMAC->TxStatus = TX_STAT_BASE;
|
|
|
|
|
EMAC->TxDescriptorNumber = NUM_TX_FRAG - 1;
|
|
|
|
|
|
|
|
|
|
/* Tx Descriptors Point to 0 */
|
|
|
|
|
MAC_TXPRODUCEINDEX = 0;
|
|
|
|
|
EMAC->TxProduceIndex = 0;
|
|
|
|
|
}
|
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
|
|
|
|
|
@ -292,34 +290,34 @@ unsigned short us;
|
|
|
|
|
long x, lDummy;
|
|
|
|
|
|
|
|
|
|
/* Enable P1 Ethernet Pins. */
|
|
|
|
|
PINSEL2 = emacPINSEL2_VALUE;
|
|
|
|
|
PINSEL3 = ( PINSEL3 & ~0x0000000F ) | 0x00000005;
|
|
|
|
|
PINCON->PINSEL2 = emacPINSEL2_VALUE;
|
|
|
|
|
PINCON->PINSEL3 = ( PINCON->PINSEL3 & ~0x0000000F ) | 0x00000005;
|
|
|
|
|
|
|
|
|
|
/* Power Up the EMAC controller. */
|
|
|
|
|
PCONP |= PCONP_PCENET;
|
|
|
|
|
SC->PCONP |= PCONP_PCENET;
|
|
|
|
|
vTaskDelay( emacSHORT_DELAY );
|
|
|
|
|
|
|
|
|
|
/* Reset all EMAC internal modules. */
|
|
|
|
|
MAC_MAC1 = MAC1_RES_TX | MAC1_RES_MCS_TX | MAC1_RES_RX | MAC1_RES_MCS_RX | MAC1_SIM_RES | MAC1_SOFT_RES;
|
|
|
|
|
MAC_COMMAND = CR_REG_RES | CR_TX_RES | CR_RX_RES | CR_PASS_RUNT_FRM;
|
|
|
|
|
EMAC->MAC1 = MAC1_RES_TX | MAC1_RES_MCS_TX | MAC1_RES_RX | MAC1_RES_MCS_RX | MAC1_SIM_RES | MAC1_SOFT_RES;
|
|
|
|
|
EMAC->Command = CR_REG_RES | CR_TX_RES | CR_RX_RES | CR_PASS_RUNT_FRM;
|
|
|
|
|
|
|
|
|
|
/* A short delay after reset. */
|
|
|
|
|
vTaskDelay( emacSHORT_DELAY );
|
|
|
|
|
|
|
|
|
|
/* Initialize MAC control registers. */
|
|
|
|
|
MAC_MAC1 = MAC1_PASS_ALL;
|
|
|
|
|
MAC_MAC2 = MAC2_CRC_EN | MAC2_PAD_EN;
|
|
|
|
|
MAC_MAXF = ETH_MAX_FLEN;
|
|
|
|
|
MAC_CLRT = CLRT_DEF;
|
|
|
|
|
MAC_IPGR = IPGR_DEF;
|
|
|
|
|
EMAC->MAC1 = MAC1_PASS_ALL;
|
|
|
|
|
EMAC->MAC2 = MAC2_CRC_EN | MAC2_PAD_EN;
|
|
|
|
|
EMAC->MAXF = ETH_MAX_FLEN;
|
|
|
|
|
EMAC->CLRT = CLRT_DEF;
|
|
|
|
|
EMAC->IPGR = IPGR_DEF;
|
|
|
|
|
|
|
|
|
|
/* Enable Reduced MII interface. */
|
|
|
|
|
MAC_COMMAND = CR_RMII | CR_PASS_RUNT_FRM;
|
|
|
|
|
EMAC->Command = CR_RMII | CR_PASS_RUNT_FRM;
|
|
|
|
|
|
|
|
|
|
/* Reset Reduced MII Logic. */
|
|
|
|
|
MAC_SUPP = SUPP_RES_RMII;
|
|
|
|
|
EMAC->SUPP = SUPP_RES_RMII;
|
|
|
|
|
vTaskDelay( emacSHORT_DELAY );
|
|
|
|
|
MAC_SUPP = 0;
|
|
|
|
|
EMAC->SUPP = 0;
|
|
|
|
|
|
|
|
|
|
/* Put the PHY in reset mode */
|
|
|
|
|
prvWritePHY( PHY_REG_BMCR, MCFG_RES_MII );
|
|
|
|
@ -389,26 +387,26 @@ unsigned short usLinkStatus;
|
|
|
|
|
if( usLinkStatus & emacFULL_DUPLEX_ENABLED )
|
|
|
|
|
{
|
|
|
|
|
/* Full duplex is enabled. */
|
|
|
|
|
MAC_MAC2 |= MAC2_FULL_DUP;
|
|
|
|
|
MAC_COMMAND |= CR_FULL_DUP;
|
|
|
|
|
MAC_IPGT = IPGT_FULL_DUP;
|
|
|
|
|
EMAC->MAC2 |= MAC2_FULL_DUP;
|
|
|
|
|
EMAC->Command |= CR_FULL_DUP;
|
|
|
|
|
EMAC->IPGT = IPGT_FULL_DUP;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Half duplex mode. */
|
|
|
|
|
MAC_IPGT = IPGT_HALF_DUP;
|
|
|
|
|
EMAC->IPGT = IPGT_HALF_DUP;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Configure 100MBit/10MBit mode. */
|
|
|
|
|
if( usLinkStatus & emac10BASE_T_MODE )
|
|
|
|
|
{
|
|
|
|
|
/* 10MBit mode. */
|
|
|
|
|
MAC_SUPP = 0;
|
|
|
|
|
EMAC->SUPP = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* 100MBit mode. */
|
|
|
|
|
MAC_SUPP = SUPP_SPEED;
|
|
|
|
|
EMAC->SUPP = SUPP_SPEED;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -437,21 +435,21 @@ unsigned long ulGetEMACRxData( void )
|
|
|
|
|
unsigned long ulLen = 0;
|
|
|
|
|
long lIndex;
|
|
|
|
|
|
|
|
|
|
if( MAC_RXPRODUCEINDEX != MAC_RXCONSUMEINDEX )
|
|
|
|
|
if( EMAC->RxProduceIndex != EMAC->RxConsumeIndex )
|
|
|
|
|
{
|
|
|
|
|
/* Mark the current buffer as free as uip_buf is going to be set to
|
|
|
|
|
the buffer that contains the received data. */
|
|
|
|
|
prvReturnBuffer( uip_buf );
|
|
|
|
|
|
|
|
|
|
ulLen = ( RX_STAT_INFO( MAC_RXCONSUMEINDEX ) & RINFO_SIZE ) - 3;
|
|
|
|
|
uip_buf = ( unsigned char * ) RX_DESC_PACKET( MAC_RXCONSUMEINDEX );
|
|
|
|
|
ulLen = ( RX_STAT_INFO( EMAC->RxConsumeIndex ) & RINFO_SIZE ) - 3;
|
|
|
|
|
uip_buf = ( unsigned char * ) RX_DESC_PACKET( EMAC->RxConsumeIndex );
|
|
|
|
|
|
|
|
|
|
/* Allocate a new buffer to the descriptor. */
|
|
|
|
|
RX_DESC_PACKET( MAC_RXCONSUMEINDEX ) = ( unsigned long ) prvGetNextBuffer();
|
|
|
|
|
RX_DESC_PACKET( EMAC->RxConsumeIndex ) = ( unsigned long ) prvGetNextBuffer();
|
|
|
|
|
|
|
|
|
|
/* Move the consume index onto the next position, ensuring it wraps to
|
|
|
|
|
the beginning at the appropriate place. */
|
|
|
|
|
lIndex = MAC_RXCONSUMEINDEX;
|
|
|
|
|
lIndex = EMAC->RxConsumeIndex;
|
|
|
|
|
|
|
|
|
|
lIndex++;
|
|
|
|
|
if( lIndex >= NUM_RX_FRAG )
|
|
|
|
@ -459,7 +457,7 @@ long lIndex;
|
|
|
|
|
lIndex = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
MAC_RXCONSUMEINDEX = lIndex;
|
|
|
|
|
EMAC->RxConsumeIndex = lIndex;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ulLen;
|
|
|
|
@ -494,7 +492,7 @@ unsigned long ulAttempts = 0UL;
|
|
|
|
|
usSendLen = usTxDataLen;
|
|
|
|
|
TX_DESC_PACKET( emacTX_DESC_INDEX ) = ( unsigned long ) uip_buf;
|
|
|
|
|
TX_DESC_CTRL( emacTX_DESC_INDEX ) = ( usTxDataLen | TCTRL_LAST | TCTRL_INT );
|
|
|
|
|
MAC_TXPRODUCEINDEX = ( emacTX_DESC_INDEX + 1 );
|
|
|
|
|
EMAC->TxProduceIndex = ( emacTX_DESC_INDEX + 1 );
|
|
|
|
|
|
|
|
|
|
/* uip_buf is being sent by the Tx descriptor. Allocate a new buffer. */
|
|
|
|
|
uip_buf = prvGetNextBuffer();
|
|
|
|
@ -506,13 +504,13 @@ static long prvWritePHY( long lPhyReg, long lValue )
|
|
|
|
|
const long lMaxTime = 10;
|
|
|
|
|
long x;
|
|
|
|
|
|
|
|
|
|
MAC_MADR = DP83848C_DEF_ADR | lPhyReg;
|
|
|
|
|
MAC_MWTD = lValue;
|
|
|
|
|
EMAC->MADR = DP83848C_DEF_ADR | lPhyReg;
|
|
|
|
|
EMAC->MWTD = lValue;
|
|
|
|
|
|
|
|
|
|
x = 0;
|
|
|
|
|
for( x = 0; x < lMaxTime; x++ )
|
|
|
|
|
{
|
|
|
|
|
if( ( MAC_MIND & MIND_BUSY ) == 0 )
|
|
|
|
|
if( ( EMAC->MIND & MIND_BUSY ) == 0 )
|
|
|
|
|
{
|
|
|
|
|
/* Operation has finished. */
|
|
|
|
|
break;
|
|
|
|
@ -537,13 +535,13 @@ static unsigned short prvReadPHY( unsigned char ucPhyReg, long *plStatus )
|
|
|
|
|
long x;
|
|
|
|
|
const long lMaxTime = 10;
|
|
|
|
|
|
|
|
|
|
MAC_MADR = DP83848C_DEF_ADR | ucPhyReg;
|
|
|
|
|
MAC_MCMD = MCMD_READ;
|
|
|
|
|
EMAC->MADR = DP83848C_DEF_ADR | ucPhyReg;
|
|
|
|
|
EMAC->MCMD = MCMD_READ;
|
|
|
|
|
|
|
|
|
|
for( x = 0; x < lMaxTime; x++ )
|
|
|
|
|
{
|
|
|
|
|
/* Operation has finished. */
|
|
|
|
|
if( ( MAC_MIND & MIND_BUSY ) == 0 )
|
|
|
|
|
if( ( EMAC->MIND & MIND_BUSY ) == 0 )
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
@ -551,31 +549,31 @@ const long lMaxTime = 10;
|
|
|
|
|
vTaskDelay( emacSHORT_DELAY );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
MAC_MCMD = 0;
|
|
|
|
|
EMAC->MCMD = 0;
|
|
|
|
|
|
|
|
|
|
if( x >= lMaxTime )
|
|
|
|
|
{
|
|
|
|
|
*plStatus = pdFAIL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return( MAC_MRDD );
|
|
|
|
|
return( EMAC->MRDD );
|
|
|
|
|
}
|
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
|
|
|
|
|
|
void vEMAC_ISR( void )
|
|
|
|
|
{
|
|
|
|
|
unsigned long ulStatus;
|
|
|
|
|
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
|
|
|
|
long lHigherPriorityTaskWoken = pdFALSE;
|
|
|
|
|
|
|
|
|
|
ulStatus = MAC_INTSTATUS;
|
|
|
|
|
ulStatus = EMAC->IntStatus;
|
|
|
|
|
|
|
|
|
|
/* Clear the interrupt. */
|
|
|
|
|
MAC_INTCLEAR = ulStatus;
|
|
|
|
|
EMAC->IntClear = ulStatus;
|
|
|
|
|
|
|
|
|
|
if( ulStatus & INT_RX_DONE )
|
|
|
|
|
{
|
|
|
|
|
/* Ensure the uIP task is not blocked as data has arrived. */
|
|
|
|
|
xSemaphoreGiveFromISR( xEMACSemaphore, &xHigherPriorityTaskWoken );
|
|
|
|
|
xSemaphoreGiveFromISR( xEMACSemaphore, &lHigherPriorityTaskWoken );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if( ulStatus & INT_TX_DONE )
|
|
|
|
@ -586,7 +584,7 @@ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
|
|
|
|
only two descriptors the index is set back to 0. */
|
|
|
|
|
TX_DESC_PACKET( ( emacTX_DESC_INDEX + 1 ) ) = TX_DESC_PACKET( emacTX_DESC_INDEX );
|
|
|
|
|
TX_DESC_CTRL( ( emacTX_DESC_INDEX + 1 ) ) = ( usSendLen | TCTRL_LAST | TCTRL_INT );
|
|
|
|
|
MAC_TXPRODUCEINDEX = ( emacTX_DESC_INDEX );
|
|
|
|
|
EMAC->TxProduceIndex = ( emacTX_DESC_INDEX );
|
|
|
|
|
|
|
|
|
|
/* This is the second Tx so set usSendLen to 0 to indicate that the
|
|
|
|
|
Tx descriptors will be free again. */
|
|
|
|
@ -600,5 +598,5 @@ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
|
|
|
|
|
portEND_SWITCHING_ISR( lHigherPriorityTaskWoken );
|
|
|
|
|
}
|
|
|
|
|