📄 ne64api.c
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//==========================================================================
//===================== NE64 Interrupts ====================================
//==========================================================================
#pragma CODE_SEG NON_BANKED
//=======================================================================
///EPHY ISR - Type of EPHY interrupt detemined by MII read of PHY_REG_IR register
//=======================================================================
interrupt void ephy_isr(void)
{
tU16 mymrdata, isr_read, temp, temp2;
tU16 none_of_these;
none_of_these = 0;
_DEBUGT("\r\n***EPHY_ISR\r\n ");
//@@@@@@@@@@@@@@@@
//STEP1: PHY interrupt flag clearing. Read PHY_REG_IR to determine PHY intterrupt
// Need to read MII Inter. register 22 before clearing EPHYIF
//@@@@@@@@@@@@@@@@
while ( !(MIIread(PHY_ADDRESS, PHY_REG_IR, &isr_read)) );
//@@@@@@@@@@@@@@@@
//STEP2: Process PHY interrupt register 0x10 (PHY_REG_IR) contenets
//handlers for different interrupts flags
//@@@@@@@@@@@@@@@@
_DEBUGT(" \r\nPHY Interrupt:\r\n"); _DEBUGT(" =================\r\n");
#if AUTO_NEG
//***********************
//Acknowledge Bit Received
//***********************
if ((isr_read & PHY_R16_ACKR) == PHY_R16_ACKR) {
_DEBUGT(" ###PHY_R16_ACKR=ACK BIT RX###\r\n ");
none_of_these = none_of_these + 1;
//code here
}
//***********************
//Link Partner Page Received
//***********************
if ((isr_read & PHY_R16_PGR) == PHY_R16_PGR) {
_DEBUGT(" ###PHY_R16_PGR=LINK PARTERN PAGE###\r\n ");
none_of_these = none_of_these + 1;
//code here
//Just checking what link partners ablility is!!!!!!! and Expansion Register
while ( ! (MIIread(PHY_ADDRESS, PHY_REG_ANLPAR, &mymrdata)) );
while ( ! (MIIread(PHY_ADDRESS, PHY_REG_ER, &mymrdata)) );
_DEBUGNL;
}
//***********************
//Auto-Negotiation Changed Enable
//***********************
if ((isr_read & PHY_R16_ANC) == PHY_R16_ANC) {
_DEBUGT(" ###PHY_R16_ANC=AUTONEG CHANGE###\r\n ");
none_of_these = none_of_these + 1;
//Read Proprietary Status Register (PSR) for status
while ( !(MIIread(PHY_ADDRESS, PHY_REG_PSR, &mymrdata)) );
//CHECK PSR:Is auto_neg complete?
if ((mymrdata & PHY_R17_ANNC) == PHY_R17_ANNC) {
//AUTONEG COMPLETED
_DEBUGT("\r\n -AUTONEG COMPLETED ");
//CHECK PSR: Was a commom mode found?
if ((mymrdata & PHY_R17_ANCM) == PHY_R17_ANCM ) _DEBUGT(" - &&&NO COMMON_MODE&&&\r\n");
else _DEBUGT(" &&&COMMON_MODE&&&\r\n");
//CHECK PSR: Duplex (verify/set EMAC duplex resolution
//Use temp as temp to save duplex setting
temp = 33;
if ((mymrdata & PHY_R17_DPM) == PHY_R17_DPM ) {
//Set EMAC to FULL Duplex
_DEBUGT(" ###AUTONEG:SET EMAC Full Duplex###\r\n");
EmacDisable();
EmacControl(NETCTL | NETCT_FDX);
EmacEnable();
//Use temp as temp to save duplex setting
temp = 55;
}
else {
//Set EMAC to HALF Duplex
_DEBUGT(" ###AUTONEG:SET EMAC Half Duplex###\r\n");
EmacDisable();
EmacControl(NETCTL & ~NETCT_FDX);
EmacEnable();
//Use temp as temp to save duplex setting
temp = 11;
}
//Read PHY_REG_ANLPAR register to check if xflow abitily
while ( !(MIIread(PHY_ADDRESS, PHY_REG_ANLPAR, &mymrdata) ) );
#if XFLOWC
if ( ((mymrdata & PHY_R5_FCTL) == PHY_R5_FCTL) && (temp == 55)) {
gotxflowc = 1; _DEBUGT("<<PAUSE RESOLVED>>\r\n");
}
else {
gotxflowc = 0; _DEBUGT("<<NO PAUSE>>\r\n");
}
#endif //#if XFLOWC
_DEBUGNL;
} //if ((mymrdata & PHY_R17_ANNC) == PHY_R17_ANNC)
else {
//AUTONEG NOT COMPLETED
_DEBUGT("\r\n AUTONEG NOT COMPLETED ");
}
}
#endif //#if AUTO_NEG
//***********************
//Link Changed
//***********************
if ((isr_read & PHY_R16_LKC) == PHY_R16_LKC) {
_DEBUGT(" ###PHY_R16_LKC=LINK CHANGE###");
none_of_these = none_of_these + 1;
//Read Proprietary Status Register (PSR) for status
while ( !(MIIread(PHY_ADDRESS, PHY_REG_PSR, &mymrdata)) );
//CHECK PSR:Is link down???
if ((mymrdata & PHY_R17_LNK) == PHY_R17_LNK) {
//No link present
gotlink = 0;
_DEBUGT("@@@@LINK IS DOWN@@@@\r\n ");
//Restart Autoneg is link is down
#if AUTO_NEG
//Read EPHY control register
while ( !(MIIread(PHY_ADDRESS, PHY_REG_CR, &mymrdata)) );
_DEBUGT("@@@READ PHY_REG_CR WHEN LINK DOWN@@@\r\n");
//Write EPHY control register to set and restart auto negotiation
_DEBUGT(" \r\n@@@@SET AND RESTART AUTONEG@@@@\r\n ");
while ( !(MIIwrite(PHY_ADDRESS, PHY_REG_CR, mymrdata | PHY_R0_ANE | PHY_R0_RAN )) );
#endif //#if AUTO_NEG
}
else
{
//No link present
gotlink = 1;
_DEBUGNL;_DEBUGT("@@@@LINK IS UP@@@@\r\n ");_DEBUGNL;
}
}
//***********************
//Parallel Detect Fault Enable
//***********************
if ((isr_read & PHY_R16_PDF) == PHY_R16_PDF) {
_DEBUGT(" ###PHY_R16_PDF = PARALLEL DETECTION FAULT###\r\n ");
none_of_these = none_of_these + 1;
#if AUTO_NEG_TIMEOUT
//Read PHY Control Register 0
while ( !(MIIread(PHY_ADDRESS, PHY_REG_CR, &mymrdata)) );
//Set temp2 to adjust EPHY Duplex to HALF duplex for as required by PARALLEL DETECTION
_DEBUGT("***ADJUST EPHY and EMAC TO HALF-DUPLEX***\r\n");
temp2 = mymrdata & ~PHY_R0_DPLX;
//Set EMAC to HALF Duplex
EmacDisable();
EmacControl(NETCTL & ~NETCT_FDX);
EmacEnable();
//Set temp2 to adjust EPHY Speed MANUALLY
#if SPEED100_P
temp2 = temp2 | PHY_R0_DR; //Set SPEED100
#else //ELSE SPEED100
temp2 = temp2 & ~PHY_R0_DR; //Set SPEED10
#endif //SPEED100
//Set temp2 to Disable EPHY Auto negotiation
temp2 = temp2 & ~PHY_R0_ANE;
//Write temp2 settings to EPHY Config Register
_DEBUGT(" ***DISABLE AUTONEG AND FIX SPEED?DUPLEX***\r\n");
while ( !(MIIwrite(PHY_ADDRESS, PHY_REG_CR, temp2)) );
#endif //AUTO_NEG_TIMEOUT
}
//***********************
//Remote Fault Interrupt Enable
//***********************
if ((isr_read & PHY_R16_RMTF) == PHY_R16_RMTF) {
_DEBUGT(" ###PHY_R16_RMTF=REMOTE FAULT###\r\n ");
none_of_these = none_of_these + 1;
//code here
}
//***********************
//Jabber Interrupt Enable
//***********************
if ((isr_read & PHY_R16_JABI) == PHY_R16_JABI) {
_DEBUGT(" ###PHY_R16_JABI=JABBER###\r\n ");
none_of_these = none_of_these + 1;
//code here
}
//***********************
if (none_of_these == 0) _DEBUGT(" - UNKNOWN PHY INT\r\n ");
//***********************
//@@@@@@@@@@@@@@@@
//STEP 3: Clear Flag
//@@@@@@@@@@@@@@@@
EPHYSR = EPHYSR_EPHYIF_MASK; /* Clear the Ephy interrupt flag */
_DEBUGT("\r\n =================\r\n"); _DEBUGT("***EPHYisr_END");
}
//=======================================================================
///RX flow control ISR
//=======================================================================
interrupt void emac_rx_fc_isr(void)
{
_DEBUGT("\r\n***EMAC_RX_XFLOW_ISR");
IEVENT = IEVENT_RFCIF_MASK; /* Clear the flag in Emac */
_DEBUGT("***isr_END");
}
//=======================================================================
///Babbling Receive Error ISR
//=======================================================================
interrupt void emac_b_rx_error_isr(void)
{
_DEBUGT("\r\n***EMAC_RX_BABBLE_ISR");
#if DELETE_BFRAMES
#if ZERO_COPY
if (activebuffer == BUFA_FULL) IEVENT = IEVENT_RXACIF_MASK;
else if (activebuffer == BUFB_FULL) IEVENT = IEVENT_RXBCIF_MASK;
#endif
#endif
IEVENT = IEVENT_BREIF_MASK; /* Clear the flag in Emac */
_DEBUGT("***isr_END");
}
//=======================================================================
///Receive Error ISR
//=======================================================================
interrupt void emac_rx_error_isr(void)
{
_DEBUGT("\r\n***EMAC_RX_ERROR_ISR");
IEVENT = IEVENT_RXEIF_MASK; /* Clear the flag in Emac */
_DEBUGT("***isr_END");
}
//=======================================================================
///RXAOIF ⌨️ 快捷键说明
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