/**
* @brief Configure the PHY to generate an interrupt on change of link status.
* @param PHYAddress: external PHY address
* @retval None
*/
uint32_t Eth_Link_PHYITConfig(uint16_t PHYAddress)
{
uint16_t tmpreg = 0;
/* Read MICR register */
tmpreg = ETH_ReadPHYRegister(PHYAddress, PHY_MICR);
/* Enable output interrupt events to signal via the INT pin */
tmpreg |= (uint16_t)(PHY_MICR_INT_EN | PHY_MICR_INT_OE);
if(!(ETH_WritePHYRegister(PHYAddress, PHY_MICR, tmpreg)))
{
/* Return ERROR in case of write timeout */
return ETH_ERROR;
}
/* Read MISR register */
tmpreg = ETH_ReadPHYRegister(PHYAddress, PHY_MISR);
/* Enable Interrupt on change of link status */
tmpreg |= (uint16_t)PHY_MISR_LINK_INT_EN;
if(!(ETH_WritePHYRegister(PHYAddress, PHY_MISR, tmpreg)))
{
/* Return ERROR in case of write timeout */
return ETH_ERROR;
}
/* Return SUCCESS */
return ETH_SUCCESS;
}
//配置网卡LED灯的指示模式，在ETH_Init函数调用前使用
//DP83848实际还有更多的功能寄存器，都是通过类似的读、写方法进行的。
//这里仅仅是一个LED灯的例子
static void ETH_SetLED()
{
uint16_t reg_value;
//0x18是强制使用LED，不写也行，默认就是0
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, 0x18, 0x0000);
//0x19是配置LED功能,bit5/6/7 表示灯的类型，看手册写了
reg_value = ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, 0x19);
reg_value &= ~0x00E0; //清除bit5/bit6
reg_value |= 0x00C0; //或者其他的数据，试试看
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, 0x19, reg_value);
}
GT_BOOL gtBspWriteMii (GT_QD_DEV* dev, unsigned int devAddr , unsigned int regAddr,
unsigned int value)
{
SMI_REG smiReg;
unsigned int timeOut = 10; /* in 100MS units */
int i;
int ret;
if( IS_MV88E6XX_PHY_ADDRESS(devAddr) )
{
/* first check that it is not busy */
smiReg = QD_SMI_BUSY
| (devAddr << QD_SMI_DEV_ADDR_BIT)
| (QD_SMI_WRITE << QD_SMI_OP_BIT)
| (regAddr << QD_SMI_REG_ADDR_BIT)
| (QD_SMI_CLAUSE22 << QD_SMI_MODE_BIT);
ret = ETH_WritePHYRegister(0x1C,QD_REG_SMI_PHY_CMD,smiReg);
if( ret && (ETH_ReadPHYRegister(0x1C,QD_REG_SMI_PHY_CMD) & QD_SMI_BUSY))
{
for(i = 0 ; i < SMI_RX_TIMEOUT ; i++);
do {
smiReg = ETH_ReadPHYRegister(0x1C,QD_REG_SMI_PHY_CMD);
if(timeOut-- < 1 ) {
return false;
}
} while (smiReg & QD_SMI_BUSY);
}
/* not busy */
ret = ETH_WritePHYRegister(0x1C,QD_REG_SMI_PHY_DATA,value);
}else{
ret = ETH_WritePHYRegister(devAddr,regAddr,value);
}
return ret;
}
/**
* @brief Link callback function, this function is called on change of link status.
* @param The network interface
* @retval None
*/
void ETH_link_callback(struct netif *netif)
{
__IO uint32_t timeout = 0;
uint32_t tmpreg;
uint16_t RegValue;
struct ip_addr ipaddr;
struct ip_addr netmask;
struct ip_addr gw;
#ifndef USE_DHCP
uint8_t iptab[4] = {0};
uint8_t iptxt[20];
#endif /* USE_DHCP */
/* Clear LCD */
// LCD_ClearLine(Line4);
// LCD_ClearLine(Line5);
// LCD_ClearLine(Line6);
// LCD_ClearLine(Line7);
// LCD_ClearLine(Line8);
// LCD_ClearLine(Line9);
if(netif_is_link_up(netif))
{
/* Restart the auto-negotiation */
if(ETH_InitStructure.ETH_AutoNegotiation != ETH_AutoNegotiation_Disable)
{
/* Reset Timeout counter */
timeout = 0;
/* Enable auto-negotiation */
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, PHY_BCR, PHY_AutoNegotiation);
/* Wait until the auto-negotiation will be completed */
do
{
timeout++;
} while (!(ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_BSR) & PHY_AutoNego_Complete) && (timeout < (uint32_t)PHY_READ_TO));
/* Reset Timeout counter */
timeout = 0;
/* Read the result of the auto-negotiation */
RegValue = ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_SR);
/* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */
if((RegValue & PHY_DUPLEX_STATUS) != (uint16_t)RESET)
{
/* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;
}
else
{
/* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
ETH_InitStructure.ETH_Mode = ETH_Mode_HalfDuplex;
}
/* Configure the MAC with the speed fixed by the auto-negotiation process */
if(RegValue & PHY_SPEED_STATUS)
{
/* Set Ethernet speed to 10M following the auto-negotiation */
ETH_InitStructure.ETH_Speed = ETH_Speed_10M;
}
else
{
/* Set Ethernet speed to 100M following the auto-negotiation */
ETH_InitStructure.ETH_Speed = ETH_Speed_100M;
}
/*------------------------ ETHERNET MACCR Re-Configuration --------------------*/
/* Get the ETHERNET MACCR value */
tmpreg = ETH->MACCR;
/* Set the FES bit according to ETH_Speed value */
/* Set the DM bit according to ETH_Mode value */
tmpreg |= (uint32_t)(ETH_InitStructure.ETH_Speed | ETH_InitStructure.ETH_Mode);
/* Write to ETHERNET MACCR */
ETH->MACCR = (uint32_t)tmpreg;
_eth_delay_(ETH_REG_WRITE_DELAY);
tmpreg = ETH->MACCR;
ETH->MACCR = tmpreg;
}
/* Restart MAC interface */
ETH_Start();
#ifdef USE_DHCP
ipaddr.addr = 0;
netmask.addr = 0;
gw.addr = 0;
DHCP_state = DHCP_START;
#else
IP4_ADDR(&ipaddr, IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);
IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1 , NETMASK_ADDR2, NETMASK_ADDR3);
IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
#endif /* USE_DHCP */
netif_set_addr(&gnetif, &ipaddr , &netmask, &gw);
/* When the netif is fully configured this function must be called.*/
netif_set_up(&gnetif);
#ifdef USE_LCD
/* Set the LCD Text Color */
LCD_SetTextColor(Green);
/* Display message on the LCD */
LCD_DisplayStringLine(Line5, (uint8_t*)" Network Cable is ");
LCD_DisplayStringLine(Line6, (uint8_t*)" now connected ");
/* Set the LCD Text Color */
LCD_SetTextColor(White);
#ifndef USE_DHCP
/* Display static IP address */
iptab[0] = IP_ADDR3;
iptab[1] = IP_ADDR2;
iptab[2] = IP_ADDR1;
iptab[3] = IP_ADDR0;
sprintf((char*)iptxt, " %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]);
LCD_DisplayStringLine(Line8, (uint8_t*)" Static IP address ");
LCD_DisplayStringLine(Line9, iptxt);
/* Clear LCD */
LCD_ClearLine(Line5);
LCD_ClearLine(Line6);
#endif /* USE_DHCP */
#endif /* USE_LCD */
EthLinkStatus = 0;
}
else
{
ETH_Stop();
#ifdef USE_DHCP
DHCP_state = DHCP_LINK_DOWN;
dhcp_stop(netif);
#endif /* USE_DHCP */
/* When the netif link is down this function must be called.*/
netif_set_down(&gnetif);
#ifdef USE_LCD
/* Set the LCD Text Color */
LCD_SetTextColor(Red);
/* Display message on the LCD */
LCD_DisplayStringLine(Line5, (uint8_t*)" Network Cable is ");
LCD_DisplayStringLine(Line6, (uint8_t*)" unplugged ");
/* Set the LCD Text Color */
LCD_SetTextColor(White);
#endif /* USE_LCD */
}
}
/**
* @brief ETH_BSP_Config
* @param None
* @retval None
*/
void ETH_BSP_Config(void)
{
RCC_ClocksTypeDef RCC_Clocks;
/* Configure the GPIO ports for ethernet pins */
ETH_GPIO_Config();
/* Configure the Ethernet MAC/DMA */
ETH_MACDMA_Config();
if (EthInitStatus == 0)
{
__IO uint32_t timeout = 0;
//LCD_String(20,50," Ethernet Init ",RED);
//LCD_String(20,80," failed ",RED);
printf("\n\r Ethernet Init failed\n\r");
//while(1);
while(EthInitStatus == 0)
{
phy_r0 = ETH_ReadPHYRegister(0, 0) ;
phy_r1 = ETH_ReadPHYRegister(0, 1) ;
phy_r2 = ETH_ReadPHYRegister(0, 2) ;
phy_r3 = ETH_ReadPHYRegister(0, 3) ;
phy_r4 = ETH_ReadPHYRegister(0, 4) ;
phy_r5 = ETH_ReadPHYRegister(0, 5) ;
phy_r6 = ETH_ReadPHYRegister(0, 6) ;
phy_r17 = ETH_ReadPHYRegister(0, 17) ;
phy_r18 = ETH_ReadPHYRegister(0, 18) ;
phy_r26 = ETH_ReadPHYRegister(0, 26) ;
phy_r27 = ETH_ReadPHYRegister(0, 27) ;
phy_r29 = ETH_ReadPHYRegister(0, 29) ;
phy_r30 = ETH_ReadPHYRegister(0, 30) ;
phy_r31 = ETH_ReadPHYRegister(0, 31) ;
if(!(ETH_WritePHYRegister(0, PHY_BCR, PHY_Loopback|PHY_AutoNegotiation|PHY_FullDuplex)))
{
/* Return ERROR in case of write timeout */
;
}
do
{
timeout++;
} while (!(ETH_ReadPHYRegister(0, PHY_BSR) & PHY_Linked_Status) && (timeout < PHY_READ_TO));
}
}
/* Configure Systick clock source as HCLK */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
/* SystTick configuration: an interrupt every 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
}
/**
* @brief Link callback function, this function is called on change of link status.
* @param The network interface
* @retval None
*/
void ETH_link_callback(struct netif *netif)
{
__IO uint32_t timeout = 0;
uint32_t tmpreg,RegValue;
struct ip_addr ipaddr;
struct ip_addr netmask;
struct ip_addr gw;
#ifndef USE_DHCP
uint8_t iptab[4] = {0};
uint8_t iptxt[20];
#endif /* USE_DHCP */
if(netif_is_link_up(netif))
{
/* Restart the autonegotiation */
if(ETH_InitStructure.ETH_AutoNegotiation != ETH_AutoNegotiation_Disable)
{
/* Reset Timeout counter */
timeout = 0;
/* Enable Auto-Negotiation */
ETH_WritePHYRegister(BOARD_PHY_ADDRESS, PHY_BCR, PHY_AutoNegotiation);
/* Wait until the auto-negotiation will be completed */
do
{
timeout++;
} while (!(ETH_ReadPHYRegister(BOARD_PHY_ADDRESS, PHY_BSR) & PHY_AutoNego_Complete) && (timeout < (uint32_t)PHY_READ_TO));
/* Reset Timeout counter */
timeout = 0;
/* Read the result of the auto-negotiation */
RegValue = ETH_ReadPHYRegister(BOARD_PHY_ADDRESS, PHY_SR);
/* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */
if((RegValue & PHY_DUPLEX_STATUS) != (uint32_t)RESET)
{
/* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;
}
else
{
/* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
ETH_InitStructure.ETH_Mode = ETH_Mode_HalfDuplex;
}
/* Configure the MAC with the speed fixed by the auto-negotiation process */
if(RegValue & PHY_SPEED_STATUS)
{
/* Set Ethernet speed to 10M following the auto-negotiation */
ETH_InitStructure.ETH_Speed = ETH_Speed_10M;
}
else
{
/* Set Ethernet speed to 100M following the auto-negotiation */
ETH_InitStructure.ETH_Speed = ETH_Speed_100M;
}
/*------------------------ ETHERNET MACCR Re-Configuration --------------------*/
/* Get the ETHERNET MACCR value */
tmpreg = ETH->MACCR;
/* Set the FES bit according to ETH_Speed value */
/* Set the DM bit according to ETH_Mode value */
tmpreg |= (uint32_t)(ETH_InitStructure.ETH_Speed | ETH_InitStructure.ETH_Mode);
/* Write to ETHERNET MACCR */
ETH->MACCR = (uint32_t)tmpreg;
_eth_delay_(ETH_REG_WRITE_DELAY);
tmpreg = ETH->MACCR;
ETH->MACCR = tmpreg;
}
/* Restart MAC interface */
ETH_Start();
#ifdef USE_DHCP
ipaddr.addr = 0;
netmask.addr = 0;
gw.addr = 0;
DHCP_state = DHCP_START;
#else
IP4_ADDR(&ipaddr, IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_lastOctet);
IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1 , NETMASK_ADDR2, NETMASK_ADDR3);
IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
#endif /* USE_DHCP */
netif_set_addr(&gnetif, &ipaddr , &netmask, &gw);
/* When the netif is fully configured this function must be called.*/
netif_set_up(&gnetif);
}
else
{
ETH_Stop();
#ifdef USE_DHCP
DHCP_state = DHCP_LINK_DOWN;
dhcp_stop(netif);
#endif /* USE_DHCP */
/* When the netif link is down this function must be called.*/
netif_set_down(&gnetif);
}
}
/* initialize the interface */
static rt_err_t rt_stm32_eth_init(rt_device_t dev)
{
int i;
/* MAC address configuration */
ETH_MACAddressConfig(ETH_MAC_Address0, (u8*)&stm32_eth_device.dev_addr[0]);
/* Initialize Tx Descriptors list: Chain Mode */
ETH_DMATxDescChainInit(DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);
/* Initialize Rx Descriptors list: Chain Mode */
ETH_DMARxDescChainInit(DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);
/* Enable Ethernet Rx interrrupt */
{
for(i=0; i<ETH_RXBUFNB; i++)
{
ETH_DMARxDescReceiveITConfig(&DMARxDscrTab[i], ENABLE);
}
}
#ifdef CHECKSUM_BY_HARDWARE
/* Enable the checksum insertion for the Tx frames */
{
for(i=0; i<ETH_TXBUFNB; i++)
{
ETH_DMATxDescChecksumInsertionConfig(&DMATxDscrTab[i], ETH_DMATxDesc_ChecksumTCPUDPICMPFull);
}
}
#endif
{
uint16_t tmp, i=10000;
tmp = ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_CR);
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, PHY_CDCTRL1, BIST_CONT_MODE );
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, PHY_CR, tmp | BIST_START );//BIST_START
while(i--);
//tmp = ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_CR);
if( ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_CR) & BIST_STATUS == BIST_STATUS )
{
rt_kprintf("BIST pass\n");
}
else
{
uint16_t ctrl;
ctrl = ETH_ReadPHYRegister(DP83848_PHY_ADDRESS, PHY_CDCTRL1);
rt_kprintf("BIST faild count =%d\n", BIST_ERROR_COUNT(ctrl) );
}
tmp &= ~BIST_START; //Stop BIST
ETH_WritePHYRegister(DP83848_PHY_ADDRESS, PHY_CR, tmp);
}
/* Enable MAC and DMA transmission and reception */
ETH_Start();
//rt_kprintf("DMASR = 0x%X\n", ETH->DMASR );
// rt_kprintf("ETH Init\n");
return RT_EOK;
}
