/*
* This task will handle interrupts generated by the ethernet phy. All
* requests to the phy must be routed through the mac over the internal
* MII bus, making dealing with the phy a slow process that is not
* well suited for a real ISR. Generally, this task runs briefly after
* a phy interrupt, then suspends itself until the next interrupt.
*/
void ethLinkTask(void *pParams)
{
/* Wait for a phy interrupt to un-suspend */
vTaskSuspend(NULL);
LWIP_DEBUGF(NETIF_DEBUG, ("eth0 ISR: Ethernet link down\n"));
while (1) {
if (EthernetPHYRead(ETH_BASE, ETH_STATUS_REG) &
ETH_PHY_LINK_UP) {
/*
* Read the phy's interrupt register to clear the
* interrupts.
*/
EthernetPHYRead(ETH_BASE,ETH_INTSTATUS_REG);
HWREGBITW(ÐDevice[0], ETH_LINK_OK) = 1;
LWIP_DEBUGF(NETIF_DEBUG, ("eth0 link status: Ethernet link up\n"));
EthernetIntClear(ETH_BASE, ETH_INT_PHY);
EthernetIntEnable(ETH_BASE, ETH_INT_PHY);
/* Wait for a phy interrupt to un-suspend */
vTaskSuspend(NULL);
LWIP_DEBUGF(NETIF_DEBUG, ("eth0 ISR: Ethernet link down\n"));
}
else
vTaskDelay(ETH_LINK_TASK_WAIT_MS);
}
}
//*****************************************************************************
//
// In this function, the hardware should be initialized.
// Called from stellarisif_init().
//
// @param netif the already initialized lwip network interface structure
// for this ethernetif
//!
//! \return None.
//!
//*****************************************************************************
static err_t low_level_init(struct netif *netif)
{
ETHServiceTaskDisable(0);
// set MAC hardware address length
netif->hwaddr_len = ETHARP_HWADDR_LEN;
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_transmit: frame sent\n"));
// set MAC hardware address
ETHServiceTaskMACAddress(0, &(netif->hwaddr[0]));
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_init: MAC address is %"X8_F"%"X8_F"%"X8_F"%"X8_F"%"X8_F"%"X8_F"\n",
netif->hwaddr[0],netif->hwaddr[1],netif->hwaddr[2],
netif->hwaddr[3],netif->hwaddr[4],netif->hwaddr[5]));
// maximum transfer unit
netif->mtu = ETH_MTU;
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_init: MTU set to %"U16_F"\n",netif->mtu));
// device capabilities
// don't set NETIF_FLAG_ETHARP if this device is not an ethernet one
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
/* Create task to handle link status changes */
xTaskCreate(ethLinkTask,
(signed char *)"eth-link",
DEFAULT_STACK_SIZE,
NULL,
ETH_LINK_TASK_PRIORITY,
ðLink_task_handle);
// Create the task that handles the incoming packets.
if (pdPASS == xTaskCreate(ethernetif_input,
( signed portCHAR * ) "eth-in",
netifINTERFACE_TASK_STACK_SIZE,
(void *)netif,
netifINTERFACE_TASK_PRIORITY,
NULL))
{
ETHServiceTaskEnable(0);
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_input: Waiting for Ethernet to become ready\n"));
ETHServiceTaskWaitReady(0);
EthernetPHYRead(ETH_BASE,ETH_INTSTATUS_REG);
EthernetIntClear(ETH_BASE, ETH_INT_PHY);
netif->flags |= NETIF_FLAG_LINK_UP;
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_init: Ethernet link is up\n"));
EthernetIntEnable(ETH_BASE, ETH_INT_PHY);
return ERR_OK;
}
else
{
LWIP_DEBUGF(NETIF_DEBUG, ("low_level_init: create receive task error\n"));
return ERR_IF;
}
}
static void AppTaskStart (void *p_arg)
{
CPU_INT32U clk_freq;
CPU_INT32U ulPHYMR0;
CPU_INT32U cnts;
OS_ERR err;
(void)&p_arg;
BSP_Init(); /* Initialize BSP functions */
CPU_Init(); /* Initialize the uC/CPU services */
SysCtlPeripheralEnable(SYSCTL_PERIPH_ETH); /* Enable and Reset the Ethernet Controller. */
SysCtlPeripheralReset(SYSCTL_PERIPH_ETH);
ulPHYMR0 = EthernetPHYRead(ETH_BASE, PHY_MR0); /* Power Down PHY */
EthernetPHYWrite(ETH_BASE, PHY_MR0, ulPHYMR0 | PHY_MR0_PWRDN);
SysCtlPeripheralDeepSleepDisable(SYSCTL_PERIPH_ETH);
clk_freq = BSP_CPUClkFreq(); /* Determine SysTick reference freq. */
cnts = clk_freq / (CPU_INT32U)OSCfg_TickRate_Hz; /* Determine nbr SysTick increments */
OS_CPU_SysTickInit(cnts); /* Init uC/OS periodic time src (SysTick). */
CPU_TS_TmrFreqSet(clk_freq);
// #if(MICROSD_EN == 1)
/* Mount the file system, using logical disk 0 */
//f_mount(0, &g_sFatFs);
/* Create a new log.txt file */
//CmdLineProcess(g_cCmdBuf);
// #endif
/* Enable Wheel ISR Interrupt */
AppRobotMotorDriveSensorEnable();
/*
Call your API here
*/
OSTaskCreateNew((OS_TCB *)&AppTaskOneTCB, (CPU_CHAR *)"App Task One", (OS_TASK_PTR ) AppTaskOne, (void *) 0, (OS_PRIO ) APP_TASK_ONE_PRIO, (CPU_STK *)&AppTaskOneStk[0], (CPU_STK_SIZE) APP_TASK_ONE_STK_SIZE / 10u, (CPU_STK_SIZE) APP_TASK_ONE_STK_SIZE, (OS_MSG_QTY ) 0u, (OS_TICK ) 0u, (void *)(CPU_INT32U) 1, (OS_OPT )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR), (OS_ERR *)&err, (OS_PERIOD) 5000);
OSTaskCreateNew((OS_TCB *)&AppTaskTwoTCB, (CPU_CHAR *)"App Task Two", (OS_TASK_PTR ) AppTaskTwo, (void *) 0, (OS_PRIO ) APP_TASK_TWO_PRIO, (CPU_STK *)&AppTaskTwoStk[0], (CPU_STK_SIZE) APP_TASK_TWO_STK_SIZE / 10u, (CPU_STK_SIZE) APP_TASK_TWO_STK_SIZE, (OS_MSG_QTY ) 0u, (OS_TICK ) 0u, (void *) (CPU_INT32U) 2, (OS_OPT )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR), (OS_ERR *)&err,(OS_PERIOD) 7000);
OSTaskCreateNew((OS_TCB *)&AppTaskThreeTCB, (CPU_CHAR *)"App Task Three", (OS_TASK_PTR ) AppTaskThree, (void *) 0, (OS_PRIO ) APP_TASK_THREE_PRIO, (CPU_STK *)&AppTaskThreeStk[0], (CPU_STK_SIZE) APP_TASK_THREE_STK_SIZE / 10u, (CPU_STK_SIZE) APP_TASK_THREE_STK_SIZE, (OS_MSG_QTY ) 0u, (OS_TICK ) 0u, (void *)(CPU_INT32U) 3, (OS_OPT )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR), (OS_ERR *)&err, (OS_PERIOD) 7000);
OSTaskCreateNew((OS_TCB *)&AppTaskFourTCB, (CPU_CHAR *)"App Task Four", (OS_TASK_PTR ) AppTaskFour, (void *) 0, (OS_PRIO ) APP_TASK_FOUR_PRIO, (CPU_STK *)&AppTaskFourStk[0], (CPU_STK_SIZE) APP_TASK_FOUR_STK_SIZE / 10u, (CPU_STK_SIZE) APP_TASK_FOUR_STK_SIZE, (OS_MSG_QTY ) 0u, (OS_TICK ) 0u, (void *) (CPU_INT32U) 4, (OS_OPT )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR), (OS_ERR *)&err,(OS_PERIOD) 10000);
OSTaskDel((OS_TCB *)0, &err);
}
static void
lwIPSoftMDIXTimer(void *pvArg)
{
//
// Service the MDIX timer.
//
if((EthernetPHYRead(ETH_BASE, PHY_MR1) & PHY_MR1_LINK) == 0)
{
g_ulMDIXTimer += SOFT_MDIX_INTERVAL;
//
// See if there has not been a link for 2 seconds.
//
if(g_ulMDIXTimer >= 2000)
{
//
// There has not been a link for 2 seconds, so flip the MDI/MDIX
// switch. This is handled automatically by Fury rev A2, but is
// harmless.
//
HWREG(ETH_BASE + MAC_O_MDIX) ^= MAC_MDIX_EN;
//
// Reset the MDIX timer.
//
g_ulMDIXTimer = 0;
}
}
else
{
//
// There is a link, so reset the MDIX timer.
//
g_ulMDIXTimer = 0;
}
//
// Re-schedule the soft-MDIX timer callback function timeout.
//
sys_timeout(SOFT_MDIX_INTERVAL, lwIPSoftMDIXTimer, NULL);
}
//*****************************************************************************
//
//! Initializes the lwIP TCP/IP stack.
//!
//! \param pucMAC is a pointer to a six byte array containing the MAC
//! address to be used for the interface.
//! \param ulIPAddr is the IP address to be used (static).
//! \param ulNetMask is the network mask to be used (static).
//! \param ulGWAddr is the Gateway address to be used (static).
//! \param ulIPMode is the IP Address Mode. \b IPADDR_USE_STATIC will force
//! static IP addressing to be used, \b IPADDR_USE_DHCP will force DHCP with
//! fallback to Link Local (Auto IP), while \b IPADDR_USE_AUTOIP will force
//! Link Local only.
//!
//! This function performs initialization of the lwIP TCP/IP stack for the
//! Stellaris Ethernet MAC, including DHCP and/or AutoIP, as configured.
//!
//! \return None.
//
//*****************************************************************************
void LWIPServiceTaskInit(void *pvParameters)
{
struct ip_addr *ip_addr;
struct ip_addr *net_mask;
struct ip_addr *gw_addr;
//struct ip_addr ip_addr_local;
//struct ip_addr net_mask_local;
char IPState = 0;
char* configLoad;
IP_CONFIG * ipCfg;
printf("Initialisiere IP ");
ipCfg = pvPortMalloc(sizeof(IP_CONFIG));
configLoad = loadFromConfig(IP_CONFIG_FILE, "USE_DHCP");
#ifdef ENABLE_GRAPHIC
vShowBootText("load ipconfig ...");
#endif
printf("LWIPSTACK: LOAD CONFIG: (%s)\n", configLoad);
if (configLoad == 0)
{
IPState = IPADDR_USE_AUTOIP;
}
else if (strcmp(configLoad, "true") == 0)
{
IPState = IPADDR_USE_DHCP;
}
else
{
IPState = IPADDR_USE_STATIC;
}
vPortFree(configLoad);
// Start the TCP/IP thread & init stuff
tcpip_init(NULL, NULL);
vTaskDelay(100 / portTICK_RATE_MS);
// Setup the network address values.
if (IPState == IPADDR_USE_STATIC)
{
ip_addr = getAddresFromConfig("IP_ADDRESS");
net_mask = getAddresFromConfig("IP_SUBNETMASK");
gw_addr = getAddresFromConfig("IP_GATEWAY");
}
#if LWIP_DHCP || LWIP_AUTOIP
else
{
ip_addr = pvPortMalloc(sizeof(struct ip_addr));
net_mask = pvPortMalloc(sizeof(struct ip_addr));
gw_addr = pvPortMalloc(sizeof(struct ip_addr));
}
#endif
// Create, configure and add the Ethernet controller interface with
// default settings.
// WARNING: This must only be run after the OS has been started.
// Typically this is the case, however, if not, you must place this
// in a post-OS initialization
// @SEE http://lwip.wikia.com/wiki/Initialization_using_tcpip.c
printf("Starting NETIF ... \n");
#ifdef ENABLE_GRAPHIC
vShowBootText("starting Network ...");
#endif
netif_add(&lwip_netif, ip_addr, net_mask, gw_addr, NULL, ethernetif_init,
tcpip_input);
netif_set_default(&lwip_netif);
printf("NETIF UP\n");
// Start DHCP, if enabled.
#if LWIP_DHCP
if (IPState == IPADDR_USE_DHCP)
{
#ifdef ENABLE_GRAPHIC
vShowBootText("waiting for DHCP ...");
#endif
printf("Starte DHCP Client ... ");
if (dhcp_start(&lwip_netif) == ERR_OK)
{
printf("[ok]\n");
}
else
{
printf("[fail]\n");
}
}
#endif
// Start AutoIP, if enabled and DHCP is not.
#if LWIP_AUTOIP
if (IPState == IPADDR_USE_AUTOIP)
{
printf ("Setzte Auto IP (NICHT DHCP) ...\n");
autoip_start(&lwip_netif);
}
#endif
if (IPState == IPADDR_USE_STATIC)
{
// Bring the interface up.
netif_set_up(&lwip_netif);
}
vTaskDelay(1000 / portTICK_RATE_MS);
while (0 == netif_is_up(&lwip_netif))
{
vTaskDelay(5000 / portTICK_RATE_MS);
if (0 == netif_is_up(&lwip_netif))
{
dhcp_renew(&lwip_netif);
}
}
printnetif(&lwip_netif);
configLoad = loadFromConfig(IP_CONFIG_FILE, "IS_SERVER");
if (strcmp(configLoad, "true") == 0)
{
/* Initialize HTTP, DNS, SNTP */
printf("HTTPD Starten ...\n");
httpd_init();
}
vPortFree(configLoad);
#if ENABLE_SNTP
printf("SNTP Starten ...\n");
sntp_init();
#endif
#if ENABLE_DNS
printf("DNS Starten ...\n");
dns_init();
#endif
#if ENABLE_NET_BIOS
printf("NETBIOS Starten ...\n");
netbios_init();
#endif
printf("Dienste gestartet ...\n");
#ifdef ENABLE_GRAPHIC
configLoad = loadFromConfig(IP_CONFIG_FILE, "IS_CLIENT");
if (strcmp(configLoad, "true") == 0)
{
vShowBootText("loading menu ...");
vLoadMenu();
}
else
{
vShowBootText("ready for requests ...");
}
vPortFree(configLoad);
#endif
// Nothing else to do. No point hanging around.
while (1)
{
vTaskDelay(500 / portTICK_RATE_MS);
if (EthernetPHYRead(ETH_BASE, PHY_MR1) & ETH_PHY_LINK_UP)
{
if (!(netif_is_up(&lwip_netif)))
{
// set link up flag
netif_set_up(&lwip_netif);
#ifdef ENABLE_GRAPHIC
vShowBootText("activate networkinterface ...");
configLoad = loadFromConfig(IP_CONFIG_FILE, "IS_CLIENT");
if (strcmp(configLoad, "true") == 0)
{
vShowBootText("loading menu ...");
vLoadMenu();
}
else
{
vShowBootText("ready for requests ...");
}
vPortFree(configLoad);
#endif
if (IPState == IPADDR_USE_DHCP)
{
printf("DHCP Adresse anfordern ... ");
if (dhcp_renew(&lwip_netif) == ERR_OK)
{
printf("[ok]\n");
printnetif(&lwip_netif);
}
else
{
printf("[fail]\n");
}
}
}
}
else
{
if (netif_is_up(&lwip_netif))
{
#ifdef ENABLE_GRAPHIC
vShowBootText("no networkconnection!!");
#endif
printf("Deaktiviere Netzwerkinterface ... ");
netif_set_down(&lwip_netif);
}
}
}
}
static void
lwIPServiceTimers(void)
{
//
// Service the MDIX timer.
//
if((EthernetPHYRead(ETH_BASE, PHY_MR1) & PHY_MR1_LINK) == 0)
{
//
// See if there has not been a link for 2 seconds.
//
if((g_ulLocalTimer - g_ulMDIXTimer) >= 2000)
{
//
// There has not been a link for 2 seconds, so flip the MDI/MDIX
// switch. This is handled automatically by Fury rev A2, but is
// harmless.
//
HWREG(ETH_BASE + MAC_O_MDIX) ^= MAC_MDIX_EN;
//
// Reset the MDIX timer.
//
g_ulMDIXTimer = g_ulLocalTimer;
}
}
else
{
//
// There is a link, so reset the MDIX timer.
//
g_ulMDIXTimer = g_ulLocalTimer;
}
//
// Service the host timer.
//
#if HOST_TMR_INTERVAL
if((g_ulLocalTimer - g_ulHostTimer) >= HOST_TMR_INTERVAL)
{
g_ulHostTimer = g_ulLocalTimer;
lwIPHostTimerHandler();
}
#endif
//
// Service the ARP timer.
//
#if LWIP_ARP
if((g_ulLocalTimer - g_ulARPTimer) >= ARP_TMR_INTERVAL)
{
g_ulARPTimer = g_ulLocalTimer;
etharp_tmr();
}
#endif
//
// Service the TCP timer.
//
#if LWIP_TCP
if((g_ulLocalTimer - g_ulTCPTimer) >= TCP_TMR_INTERVAL)
{
g_ulTCPTimer = g_ulLocalTimer;
tcp_tmr();
}
#endif
//
// Service the AutoIP timer.
//
#if LWIP_AUTOIP
if((g_ulLocalTimer - g_ulAutoIPTimer) >= AUTOIP_TMR_INTERVAL)
{
g_ulAutoIPTimer = g_ulLocalTimer;
autoip_tmr();
}
#endif
//
// Service the DCHP Coarse Timer.
//
#if LWIP_DHCP
if((g_ulLocalTimer - g_ulDHCPCoarseTimer) >= DHCP_COARSE_TIMER_MSECS)
{
g_ulDHCPCoarseTimer = g_ulLocalTimer;
dhcp_coarse_tmr();
}
#endif
//
// Service the DCHP Fine Timer.
//
#if LWIP_DHCP
if((g_ulLocalTimer - g_ulDHCPFineTimer) >= DHCP_FINE_TIMER_MSECS)
{
g_ulDHCPFineTimer = g_ulLocalTimer;
dhcp_fine_tmr();
}
#endif
//
// Service the IP Reassembly Timer
//
#if IP_REASSEMBLY
if((g_ulLocalTimer - g_ulIPReassemblyTimer) >= IP_TMR_INTERVAL)
{
g_ulIPReassemblyTimer = g_ulLocalTimer;
ip_reass_tmr();
}
#endif
//
// Service the IGMP Timer
//
#if LWIP_IGMP
if((g_ulLocalTimer - g_ulIGMPTimer) >= IGMP_TMR_INTERVAL)
{
g_ulIGMPTimer = g_ulLocalTimer;
igmp_tmr();
}
#endif
//
// Service the DNS Timer
//
#if LWIP_DNS
if((g_ulLocalTimer - g_ulDNSTimer) >= DNS_TMR_INTERVAL)
{
g_ulDNSTimer = g_ulLocalTimer;
dns_tmr();
}
#endif
}
//*****************************************************************************
//
//! Service the lwIP timers.
//!
//! This function services all of the lwIP periodic timers, including TCP and
//! Host timers. This should be called from the lwIP context, which may be
//! the Ethernet interrupt (in the case of a non-RTOS system) or the lwIP
//! thread, in the event that an RTOS is used.
//!
//! \return None.
//
//*****************************************************************************
static void lwIPServiceTimers(struct netif *netif)
{
LWIP_DRIVER_DATA* drv_data = (LWIP_DRIVER_DATA*)netif;
MAC_Type* mac = (MAC_Type*)netif->state;
//
// Service the MDIX timer.
//
if(drv_data->timer_main > drv_data->timer_mdix)
{
//
// See if there has not been a link for 2 seconds.
//
if((EthernetPHYRead(mac, PHY_MR1) & PHY_MR1_LINK) == 0)
{
// There has not been a link for 2 seconds, so flip the MDI/MDIX
// switch. This is handled automatically by Fury rev A2, but is
// harmless.
//
mac->MDIX ^= MAC_MDIX_EN;
if (netif->flags & NETIF_FLAG_LINK_UP)
{
#if LWIP_DHCP
autoip_stop(netif);
dhcp_start(netif);
#endif
netif_set_link_down(netif);
}
}
else
netif_set_link_up(netif);
//
// Reset the MDIX timer.
//
drv_data->timer_mdix = drv_data->timer_main + 2048;
}
//
// Service the host timer.
//
#if HOST_TMR_INTERVAL
if(drv_data->timer_main > drv_data->timer_host )
{
drv_data->timer_host = drv_data->timer_main + HOST_TMR_INTERVAL;
lwIPHostTimerHandler();
}
#endif
//
// Service the ARP timer.
//
#if LWIP_ARP
if(drv_data->timer_main > drv_data->timer_arp)
{
drv_data->timer_arp = drv_data->timer_main + ARP_TMR_INTERVAL;
etharp_tmr();
}
#endif
//
// Service the TCP timer.
//
#if LWIP_TCP
if(drv_data->timer_main > drv_data->timer_tcp)
{
drv_data->timer_tcp = drv_data->timer_main + TCP_TMR_INTERVAL;
tcp_tmr();
}
#endif
//
// Service the AutoIP timer.
//
#if LWIP_AUTOIP
if(drv_data->timer_main - drv_data->timer_autoIP)
{
drv_data->timer_autoIP = drv_data->timer_main + AUTOIP_TMR_INTERVAL;
autoip_tmr();
}
#endif
//
// Service the DCHP Coarse Timer.
//
#if LWIP_DHCP
if(drv_data->timer_main > drv_data->timer_DHCPCoarse)
{
drv_data->timer_DHCPCoarse = drv_data->timer_main + DHCP_COARSE_TIMER_MSECS;
dhcp_coarse_tmr();
}
#endif
//
// Service the DCHP Fine Timer.
//
#if LWIP_DHCP
if(drv_data->timer_main > drv_data->timer_DHCPFine)
{
drv_data->timer_DHCPFine = drv_data->timer_main + DHCP_FINE_TIMER_MSECS;
dhcp_fine_tmr();
}
#endif
}
//*****************************************************************************
//
// This example demonstrates the use of the Ethernet Controller with the uIP
// TCP/IP stack.
//
//*****************************************************************************
int
main(void)
{
uip_ipaddr_t ipaddr;
static struct uip_eth_addr sTempAddr;
long lPeriodicTimer, lARPTimer, lPacketLength;
unsigned long ulUser0, ulUser1;
unsigned long ulTemp;
//
// Set the clocking to run directly from the crystal.
//
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_8MHZ);
//
// Initialize the OLED display.
//
RIT128x96x4Init(1000000);
RIT128x96x4StringDraw("Ethernet with uIP", 12, 0, 15);
//
// Enable and Reset the Ethernet Controller.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_ETH);
SysCtlPeripheralReset(SYSCTL_PERIPH_ETH);
//
// Enable Port F for Ethernet LEDs.
// LED0 Bit 3 Output
// LED1 Bit 2 Output
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);
//
// Configure SysTick for a periodic interrupt.
//
SysTickPeriodSet(SysCtlClockGet() / SYSTICKHZ);
SysTickEnable();
SysTickIntEnable();
//
// Intialize the Ethernet Controller and disable all Ethernet Controller
// interrupt sources.
//
EthernetIntDisable(ETH_BASE, (ETH_INT_PHY | ETH_INT_MDIO | ETH_INT_RXER |
ETH_INT_RXOF | ETH_INT_TX | ETH_INT_TXER | ETH_INT_RX));
ulTemp = EthernetIntStatus(ETH_BASE, false);
EthernetIntClear(ETH_BASE, ulTemp);
//
// Initialize the Ethernet Controller for operation.
//
EthernetInitExpClk(ETH_BASE, SysCtlClockGet());
//
// Configure the Ethernet Controller for normal operation.
// - Full Duplex
// - TX CRC Auto Generation
// - TX Padding Enabled
//
EthernetConfigSet(ETH_BASE, (ETH_CFG_TX_DPLXEN | ETH_CFG_TX_CRCEN |
ETH_CFG_TX_PADEN));
//
// Wait for the link to become active.
//
RIT128x96x4StringDraw("Waiting for Link", 12, 8, 15);
ulTemp = EthernetPHYRead(ETH_BASE, PHY_MR1);
while((ulTemp & 0x0004) == 0)
{
ulTemp = EthernetPHYRead(ETH_BASE, PHY_MR1);
}
RIT128x96x4StringDraw("Link Established", 12, 16, 15);
//
// Enable the Ethernet Controller.
//
EthernetEnable(ETH_BASE);
//
// Enable the Ethernet interrupt.
//
IntEnable(INT_ETH);
//
// Enable the Ethernet RX Packet interrupt source.
//
EthernetIntEnable(ETH_BASE, ETH_INT_RX);
//
// Enable all processor interrupts.
//
IntMasterEnable();
//
// Initialize the uIP TCP/IP stack.
//
uip_init();
#ifdef USE_STATIC_IP
uip_ipaddr(ipaddr, DEFAULT_IPADDR0, DEFAULT_IPADDR1, DEFAULT_IPADDR2,
DEFAULT_IPADDR3);
uip_sethostaddr(ipaddr);
DisplayIPAddress(ipaddr, 18, 24);
uip_ipaddr(ipaddr, DEFAULT_NETMASK0, DEFAULT_NETMASK1, DEFAULT_NETMASK2,
DEFAULT_NETMASK3);
uip_setnetmask(ipaddr);
#else
uip_ipaddr(ipaddr, 0, 0, 0, 0);
uip_sethostaddr(ipaddr);
DisplayIPAddress(ipaddr, 18, 24);
uip_ipaddr(ipaddr, 0, 0, 0, 0);
uip_setnetmask(ipaddr);
#endif
//
// Configure the hardware MAC address for Ethernet Controller filtering of
// incoming packets.
//
// For the Ethernet Eval Kits, the MAC address will be stored in the
// non-volatile USER0 and USER1 registers. These registers can be read
// using the FlashUserGet function, as illustrated below.
//
FlashUserGet(&ulUser0, &ulUser1);
if((ulUser0 == 0xffffffff) || (ulUser1 == 0xffffffff))
{
//
// We should never get here. This is an error if the MAC address has
// not been programmed into the device. Exit the program.
//
RIT128x96x4StringDraw("MAC Address", 0, 16, 15);
RIT128x96x4StringDraw("Not Programmed!", 0, 24, 15);
while(1)
{
}
}
//
// Convert the 24/24 split MAC address from NV ram into a 32/16 split MAC
// address needed to program the hardware registers, then program the MAC
// address into the Ethernet Controller registers.
//
sTempAddr.addr[0] = ((ulUser0 >> 0) & 0xff);
sTempAddr.addr[1] = ((ulUser0 >> 8) & 0xff);
sTempAddr.addr[2] = ((ulUser0 >> 16) & 0xff);
sTempAddr.addr[3] = ((ulUser1 >> 0) & 0xff);
sTempAddr.addr[4] = ((ulUser1 >> 8) & 0xff);
sTempAddr.addr[5] = ((ulUser1 >> 16) & 0xff);
//
// Program the hardware with it's MAC address (for filtering).
//
EthernetMACAddrSet(ETH_BASE, (unsigned char *)&sTempAddr);
uip_setethaddr(sTempAddr);
//
// Initialize the TCP/IP Application (e.g. web server).
//
httpd_init();
#ifndef USE_STATIC_IP
//
// Initialize the DHCP Client Application.
//
dhcpc_init(&sTempAddr.addr[0], 6);
dhcpc_request();
#endif
//
// Main Application Loop.
//
lPeriodicTimer = 0;
lARPTimer = 0;
while(true)
{
//
// Wait for an event to occur. This can be either a System Tick event,
// or an RX Packet event.
//
while(!g_ulFlags)
{
}
//
// If SysTick, Clear the SysTick interrupt flag and increment the
// timers.
//
if(HWREGBITW(&g_ulFlags, FLAG_SYSTICK) == 1)
{
HWREGBITW(&g_ulFlags, FLAG_SYSTICK) = 0;
lPeriodicTimer += SYSTICKMS;
lARPTimer += SYSTICKMS;
}
//
// Check for an RX Packet and read it.
//
lPacketLength = EthernetPacketGetNonBlocking(ETH_BASE, uip_buf,
sizeof(uip_buf));
if(lPacketLength > 0)
{
//
// Set uip_len for uIP stack usage.
//
uip_len = (unsigned short)lPacketLength;
//
// Clear the RX Packet event and renable RX Packet interrupts.
//
if(HWREGBITW(&g_ulFlags, FLAG_RXPKT) == 1)
{
HWREGBITW(&g_ulFlags, FLAG_RXPKT) = 0;
EthernetIntEnable(ETH_BASE, ETH_INT_RX);
}
//
// Process incoming IP packets here.
//
if(BUF->type == htons(UIP_ETHTYPE_IP))
{
uip_arp_ipin();
uip_input();
//
// If the above function invocation resulted in data that
// should be sent out on the network, the global variable
// uip_len is set to a value > 0.
//
if(uip_len > 0)
{
uip_arp_out();
EthernetPacketPut(ETH_BASE, uip_buf, uip_len);
uip_len = 0;
}
}
//
// Process incoming ARP packets here.
//
else if(BUF->type == htons(UIP_ETHTYPE_ARP))
{
uip_arp_arpin();
//
// If the above function invocation resulted in data that
// should be sent out on the network, the global variable
// uip_len is set to a value > 0.
//
if(uip_len > 0)
{
EthernetPacketPut(ETH_BASE, uip_buf, uip_len);
uip_len = 0;
}
}
}
//
// Process TCP/IP Periodic Timer here.
//
if(lPeriodicTimer > UIP_PERIODIC_TIMER_MS)
{
lPeriodicTimer = 0;
for(ulTemp = 0; ulTemp < UIP_CONNS; ulTemp++)
{
uip_periodic(ulTemp);
//
// If the above function invocation resulted in data that
// should be sent out on the network, the global variable
// uip_len is set to a value > 0.
//
if(uip_len > 0)
{
uip_arp_out();
EthernetPacketPut(ETH_BASE, uip_buf, uip_len);
uip_len = 0;
}
}
#if UIP_UDP
for(ulTemp = 0; ulTemp < UIP_UDP_CONNS; ulTemp++)
{
uip_udp_periodic(ulTemp);
//
// If the above function invocation resulted in data that
// should be sent out on the network, the global variable
// uip_len is set to a value > 0.
//
if(uip_len > 0)
{
uip_arp_out();
EthernetPacketPut(ETH_BASE, uip_buf, uip_len);
uip_len = 0;
}
}
#endif // UIP_UDP
}
//
// Process ARP Timer here.
//
if(lARPTimer > UIP_ARP_TIMER_MS)
{
lARPTimer = 0;
uip_arp_timer();
}
}
}
unsigned int ethernet_link(void)
{
return (EthernetPHYRead(ETH_BASE, PHY_MR1) & 0x04) ? 1 : 0;
}