/******************************************************************************
* Function: unsigned int SOCKETGetTxPointer()
*
* PreCondition: none
*
* Input: None
*
* Output: TX pointer location
*
* Side Effects: None
*
* Overview: Retrieves TX pointer location
*
* Note: None
*****************************************************************************/
unsigned int SOCKETGetTxPointer()
{
unsigned int addrTmp;
addrTmp = enc28j60Read(EWRPTL);
addrTmp |= enc28j60Read(EWRPTH) << 8;
return addrTmp;
}
void enc28j60PowerDown()
{
enc28j60WriteOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_RXEN);
while(enc28j60Read(ESTAT) & ESTAT_RXBUSY);
while(enc28j60Read(ECON1) & ECON1_TXRTS);
enc28j60WriteOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PWRSV);
}
/**
* @}
*/
void EXTI0_IRQHandler(void)
{
uint8_t EIR_dat = 0x00;
EIR_dat = enc28j60Read(EIR);
if(EXTI_GetITStatus(EXTI_Line0) != RESET) //判别是否有数据包到达
{
if(EIR_dat&0x40) { //检测PKTIF中断请求标志位，接收中断
ETH_INT=1;
//printf("PKTIF\n");
}
else if(EIR_dat&0x01) { //检测RXERIF中断请求标志位，接收错误中断
ETH_INT=1;
//printf("RXERIF\n");
}
else if(EIR_dat&0x10) {
//链路状态改变中断需要读取PHIR清除中断标志位
//printf("link state changed\n");
if(enc28j60PhyRead(PHIR)&0x14) {
if(enc28j60PhyRead(PHSTAT2)&0x0400) {
printf("link activate\n");
}
else {
printf("link invalid\n");
//enc28j60WriteOp(ENC28J60_SOFT_RESET, 0, ENC28J60_SOFT_RESET);
}
}
}
//ethernetif_input(网口名); //设置接收完成标志
EXTI_ClearITPendingBit(EXTI_Line0); //清除中断请求标志
}
}
static void _eth_spi_configure() {
DBG(D_ETH, D_DEBUG, "ethspi spigen init\n");
SPI_DEV_GEN_init(
&_enc28j60_spi_dev,
SPIDEV_CONFIG_CPHA_1E |
SPIDEV_CONFIG_CPOL_LO |
SPIDEV_CONFIG_FBIT_MSB |
SPIDEV_CONFIG_SPEED_9M,
_SPI_BUS(1),
SPI_ETH_GPIO_PORT, SPI_ETH_GPIO_PIN);
DBG(D_ETH, D_DEBUG, "ethspi spigen open\n");
SPI_DEV_GEN_open(&_enc28j60_spi_dev);
DBG(D_ETH, D_DEBUG, "ethspi enc28j60 init\n");
enc28j60Init(mac_address, EIE_PKTIE | EIE_TXIE | EIE_RXERIE | EIE_TXERIE);
DBG(D_ETH, D_DEBUG, "ethspi enc28j60 init done, chip rev %02x\n", enc28j60getrev());
DBG(D_ETH, D_DEBUG, "ethspi mac readback: %02x:%02x:%02x:%02x:%02x:%02x\n",
enc28j60Read(MAADR5), enc28j60Read(MAADR4), enc28j60Read(MAADR3),
enc28j60Read(MAADR2), enc28j60Read(MAADR1), enc28j60Read(MAADR0)
);
SYS_hardsleep_ms(20);
enc28j60PhyWrite(PHLCON,0x476);
SYS_hardsleep_ms(20);
// init eth/ip layer
init_ip_arp_udp_tcp(mac_address, ip_address, 80);
DBG(D_ETH, D_INFO, "ethspi setup finished, ip %i.%i.%i.%i @ mac %02x.%02x.%02x.%02x.%02x.%02x\n",
ip_address[0], ip_address[1], ip_address[2], ip_address[3], mac_address[0], mac_address[1], mac_address[2], mac_address[3], mac_address[4], mac_address[5]);
}
void network_get_MAC(uint8_t* macaddr)
{
*macaddr++ = enc28j60Read(MAADR5);
*macaddr++ = enc28j60Read(MAADR4);
*macaddr++ = enc28j60Read(MAADR3);
*macaddr++ = enc28j60Read(MAADR2);
*macaddr++ = enc28j60Read(MAADR1);
*macaddr++ = enc28j60Read(MAADR0);
}
void network_get_MAC(u08* macaddr)
{
// read MAC address registers
// NOTE: MAC address in ENC28J60 is byte-backward
*macaddr++ = enc28j60Read(MAADR5);
*macaddr++ = enc28j60Read(MAADR4);
*macaddr++ = enc28j60Read(MAADR3);
*macaddr++ = enc28j60Read(MAADR2);
*macaddr++ = enc28j60Read(MAADR1);
*macaddr++ = enc28j60Read(MAADR0);
}
//Documentation in header file
uint8_t dhcp_requestIP(uint16_t timeout_ms)
{
//Get a timer
int8_t timer = timer_get();
timer_set(timer,timeout_ms);
//Send dhcp discover packet
dhcp_sendDiscover();
do
{
//Wait for a packet to arrive
//If no packets arrive in time, return 0
while(enc28j60Read(EPKTCNT) == 0)
if(timer_check(timer) == TIMER_EXPIRED)
{
//Release the timer
timer_release(timer);
return 0;
}
//Receive packet
ns.plength = enc28j60PacketReceive(ns.pbuf, ns.pbuf_size);
//Check if packet is DHCP!
if(ns.plength > 0)
if(getPacketType() == DHCP)
dhcp_handlePacket();
}
while(ns.ipAcquired == 0);
//Release the timer
timer_release(timer);
//Return success
return ns.ipAcquired;
}
/******************************************************************************
* Function: BOOL IsDMACopyDone(void)
*
* PreCondition: None
*
* Input: None
*
* Output: Returns true if DMA flag was cleared
*
* Side Effects: None
*
* Overview: Check for DMA flag
*
* Note: None
*****************************************************************************/
BOOL IsDMACopyDone(void)
{
return !((enc28j60Read(ECON1) & ECON1_DMAST) == ECON1_DMAST);
}
/******************************************************************************
* Function: BOOL IsMACSendTx(void)
*
* PreCondition: None
*
* Input: None
*
* Output: Returns true if TX send flag was cleared
*
* Side Effects: None
*
* Overview: Check for Send Tx flag
*
* Note: None
*****************************************************************************/
BOOL IsMACSendTx(void)
{
return !((enc28j60Read(ECON1) & ECON1_TXRTS) == ECON1_TXRTS);
}
/******************************************************************************
* Function: unsigned char MACGetPacketCount(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: Check EPKTCNT to know how many packets arrived
*
* Note: None
*****************************************************************************/
unsigned char MACGetPacketCount(void)
{
return enc28j60Read(EPKTCNT);
}
/******************************************************************************
* Function: unsigned char MACHardwareRevision(void)
*
* PreCondition: Must call MACOpen() first
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: Returns hardware revision
*
* Note: None
*****************************************************************************/
unsigned char MACHardwareRevision(void)
{
return enc28j60Read(EREVID);
}
void enc28j60PowerUp()
{
enc28j60WriteOp(ENC28J60_BIT_FIELD_CLR, ECON2, ECON2_PWRSV);
while(!enc28j60Read(ESTAT) & ESTAT_CLKRDY);
}
uint8_t EtherShield::ES_enc28j60Read( uint8_t address ) {
return enc28j60Read( address );
}
