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- #include "main.h"
- #include "lwip/opt.h"
- #include "lwip/timeouts.h"
- #include "netif/ethernet.h"
- #include "netif/etharp.h"
- #include "lwip/ethip6.h"
- #include "ethernetif.h"
- #include "dp83848.h"
- #include <string.h>
- #include "cmsis_os.h"
- #include "lwip/tcpip.h"
- #define TIME_WAITING_FOR_INPUT ( portMAX_DELAY )
- #define INTERFACE_THREAD_STACK_SIZE ( 1024 )
- #define IFNAME0 's'
- #define IFNAME1 't'
- #define ETH_DMA_TRANSMIT_TIMEOUT ( 20U )
- #define ETH_TX_BUFFER_MAX ((ETH_TX_DESC_CNT) * 2U)
- #if USE_DHCP
- #define MAX_DHCP_TRIES 4
- enum dhcp_states {
- DHCP_OFF = 0,
- DHCP_START,
- DHCP_WAIT_ADDRESS,
- DHCP_ADDRESS_ASSIGNED,
- DHCP_TIMEOUT,
- DHCP_LINKD_DOWN,
- DHCP_LAST
- } ;
- #endif
- typedef enum
- {
- RX_ALLOC_OK = 0x00,
- RX_ALLOC_ERROR = 0x01
- } RxAllocStatusTypeDef;
- typedef struct
- {
- struct pbuf_custom pbuf_custom;
- uint8_t buff[(ETH_RX_BUFFER_SIZE + 31) & ~31] __ALIGNED(32);
- } RxBuff_t;
- #define ETH_RX_BUFFER_CNT 12U
- LWIP_MEMPOOL_DECLARE(RX_POOL, ETH_RX_BUFFER_CNT, sizeof(RxBuff_t), "Zero-copy RX PBUF pool");
- static uint8_t RxAllocStatus;
- __IO uint32_t TxPkt = 0;
- __IO uint32_t RxPkt = 0;
- #if defined ( __ICCARM__ )
- #pragma location=0x30000000
- ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT];
- #pragma location=0x30000200
- ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT];
- #elif defined ( __CC_ARM )
- __attribute__((at(0x30000000))) ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT];
- __attribute__((at(0x30000200))) ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT];
- #elif defined ( __GNUC__ )
- ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT] __attribute__((section(".RxDecripSection")));
- ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT] __attribute__((section(".TxDecripSection")));
- #endif
- #if defined ( __ICCARM__ )
- #pragma location = 0x30040200
- extern u8_t memp_memory_RX_POOL_base[];
- #elif defined ( __CC_ARM )
- __attribute__((at(0x30040200)) extern u8_t memp_memory_RX_POOL_base[];
- #elif defined ( __GNUC__ )
- __attribute__((section(".Rx_PoolSection"))) extern u8_t memp_memory_RX_POOL_base[];
- #endif
- osSemaphoreId RxPktSemaphore = NULL;
- osSemaphoreId TxPktSemaphore = NULL;
- ETH_HandleTypeDef heth;
- ETH_TxPacketConfig TxConfig;
- int32_t ETH_PHY_IO_Init(void);
- int32_t ETH_PHY_IO_DeInit (void);
- int32_t ETH_PHY_IO_ReadReg(uint32_t DevAddr, uint32_t RegAddr, uint32_t *pRegVal);
- int32_t ETH_PHY_IO_WriteReg(uint32_t DevAddr, uint32_t RegAddr, uint32_t RegVal);
- int32_t ETH_PHY_IO_GetTick(void);
- dp83848_Object_t DP83848;
- dp83848_IOCtx_t DP83848_IOCtx = {ETH_PHY_IO_Init,
- ETH_PHY_IO_DeInit,
- ETH_PHY_IO_WriteReg,
- ETH_PHY_IO_ReadReg,
- ETH_PHY_IO_GetTick};
- #if USE_DHCP
- void dhcp_sm(struct netif *netif, enum dhcp_states *state);
- #endif
- void pbuf_free_custom(struct pbuf *p);
- void HAL_ETH_RxCpltCallback(ETH_HandleTypeDef *handlerEth)
- {
- osSemaphoreRelease(RxPktSemaphore);
- }
- void HAL_ETH_TxCpltCallback(ETH_HandleTypeDef *handlerEth)
- {
- osSemaphoreRelease(TxPktSemaphore);
- }
- void HAL_ETH_ErrorCallback(ETH_HandleTypeDef *handlerEth)
- {
- if((HAL_ETH_GetDMAError(handlerEth) & ETH_DMACSR_RBU) == ETH_DMACSR_RBU)
- {
- osSemaphoreRelease(RxPktSemaphore);
- }
- }
- static void low_level_init(struct netif *netif)
- {
- HAL_StatusTypeDef hal_eth_init_status = HAL_OK;
- osThreadAttr_t attributes;
- uint32_t duplex, speed = 0;
- int32_t PHYLinkState = 0;
- ETH_MACConfigTypeDef MACConf = {0};
-
- uint8_t MACAddr[6] ;
- heth.Instance = ETH;
- MACAddr[0] = 0x7C;
- MACAddr[1] = 0xF6;
- MACAddr[2] = 0x66;
- MACAddr[3] = 0xE4;
- MACAddr[4] = 0xB5;
- MACAddr[5] = 0x41;
- heth.Init.MACAddr = &MACAddr[0];
- heth.Init.MediaInterface = HAL_ETH_MII_MODE;
- heth.Init.TxDesc = DMATxDscrTab;
- heth.Init.RxDesc = DMARxDscrTab;
- heth.Init.RxBuffLen = 1536;
-
-
- hal_eth_init_status = HAL_ETH_Init(&heth);
- memset(&TxConfig, 0 , sizeof(ETH_TxPacketConfig));
- TxConfig.Attributes = ETH_TX_PACKETS_FEATURES_CSUM | ETH_TX_PACKETS_FEATURES_CRCPAD;
- TxConfig.ChecksumCtrl = ETH_CHECKSUM_IPHDR_PAYLOAD_INSERT_PHDR_CALC;
- TxConfig.CRCPadCtrl = ETH_CRC_PAD_INSERT;
-
-
- LWIP_MEMPOOL_INIT(RX_POOL);
- #if LWIP_ARP || LWIP_ETHERNET
-
- netif->hwaddr_len = ETH_HWADDR_LEN;
-
- netif->hwaddr[0] = heth.Init.MACAddr[0];
- netif->hwaddr[1] = heth.Init.MACAddr[1];
- netif->hwaddr[2] = heth.Init.MACAddr[2];
- netif->hwaddr[3] = heth.Init.MACAddr[3];
- netif->hwaddr[4] = heth.Init.MACAddr[4];
- netif->hwaddr[5] = heth.Init.MACAddr[5];
-
- netif->mtu = ETH_MAX_PAYLOAD;
-
-
- #if LWIP_ARP
- netif->flags |= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
- #else
- netif->flags |= NETIF_FLAG_BROADCAST;
- #endif
-
- RxPktSemaphore = osSemaphoreNew(1, 1, NULL);
-
- TxPktSemaphore = osSemaphoreNew(1, 1, NULL);
-
- memset(&attributes, 0x0, sizeof(osThreadAttr_t));
- attributes.name = "EthIf";
- attributes.stack_size = INTERFACE_THREAD_STACK_SIZE;
- attributes.priority = osPriorityRealtime;
- osThreadNew(ethernetif_input, netif, &attributes);
-
- DP83848_RegisterBusIO(&DP83848, &DP83848_IOCtx);
-
- DP83848_Init(&DP83848);
- if (hal_eth_init_status == HAL_OK)
- {
- PHYLinkState = DP83848_GetLinkState(&DP83848);
-
- if(PHYLinkState <= DP83848_STATUS_LINK_DOWN)
- {
- netif_set_link_down(netif);
- netif_set_down(netif);
- }
- else
- {
- switch (PHYLinkState)
- {
- case DP83848_STATUS_100MBITS_FULLDUPLEX:
- duplex = ETH_FULLDUPLEX_MODE;
- speed = ETH_SPEED_100M;
- break;
- case DP83848_STATUS_100MBITS_HALFDUPLEX:
- duplex = ETH_HALFDUPLEX_MODE;
- speed = ETH_SPEED_100M;
- break;
- case DP83848_STATUS_10MBITS_FULLDUPLEX:
- duplex = ETH_FULLDUPLEX_MODE;
- speed = ETH_SPEED_10M;
- break;
- case DP83848_STATUS_10MBITS_HALFDUPLEX:
- duplex = ETH_HALFDUPLEX_MODE;
- speed = ETH_SPEED_10M;
- break;
- default:
- duplex = ETH_FULLDUPLEX_MODE;
- speed = ETH_SPEED_100M;
- break;
- }
-
- HAL_ETH_GetMACConfig(&heth, &MACConf);
- MACConf.DuplexMode = duplex;
- MACConf.Speed = speed;
- HAL_ETH_SetMACConfig(&heth, &MACConf);
- HAL_ETH_Start_IT(&heth);
- netif_set_up(netif);
- netif_set_link_up(netif);
- ethernetif_notify_conn_changed(netif);
- }
- }
- else
- {
- Error_Handler();
- }
- #endif
- }
- static err_t low_level_output(struct netif *netif, struct pbuf *p)
- {
- uint32_t i = 0U;
- struct pbuf *q = NULL;
- err_t errval = ERR_OK;
- ETH_BufferTypeDef Txbuffer[ETH_TX_DESC_CNT] = {0};
- memset(Txbuffer, 0 , ETH_TX_DESC_CNT*sizeof(ETH_BufferTypeDef));
- for(q = p; q != NULL; q = q->next)
- {
- if(i >= ETH_TX_DESC_CNT)
- return ERR_IF;
- Txbuffer[i].buffer = q->payload;
- Txbuffer[i].len = q->len;
- if(i>0)
- {
- Txbuffer[i-1].next = &Txbuffer[i];
- }
- if(q->next == NULL)
- {
- Txbuffer[i].next = NULL;
- }
- i++;
- }
- TxConfig.Length = p->tot_len;
- TxConfig.TxBuffer = Txbuffer;
- TxConfig.pData = p;
- pbuf_ref(p);
- #if 1
- if (HAL_ETH_Transmit_IT(&heth, &TxConfig) == HAL_OK) {
- while(osSemaphoreAcquire(TxPktSemaphore, TIME_WAITING_FOR_INPUT)!=osOK)
- {
- }
- HAL_ETH_ReleaseTxPacket(&heth);
- } else {
- pbuf_free(p);
- }
- #else
- HAL_ETH_Transmit_IT(&heth, &TxConfig);
- osSemaphoreAcquire(TxPktSemaphore, pdMS_TO_TICKS(100));
- HAL_ETH_ReleaseTxPacket(&heth);
- #endif
- return errval;
- }
- static struct pbuf * low_level_input(struct netif *netif)
- {
- struct pbuf *p = NULL;
- if(RxAllocStatus == RX_ALLOC_OK)
- {
- HAL_ETH_ReadData(&heth, (void **)&p);
- }
- return p;
- }
- void ethernetif_input(void* argument)
- {
- struct pbuf *p = NULL;
- struct netif *netif = (struct netif *) argument;
- for( ;; )
- {
- if (osSemaphoreAcquire(RxPktSemaphore, TIME_WAITING_FOR_INPUT) == osOK)
- {
- do
- {
- p = low_level_input( netif );
- if (p != NULL)
- {
- if (netif->input( p, netif) != ERR_OK )
- {
- pbuf_free(p);
- }
- }
- } while(p!=NULL);
- }
- }
- }
- #if !LWIP_ARP
- static err_t low_level_output_arp_off(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr)
- {
- err_t errval;
- errval = ERR_OK;
- return errval;
- }
- #endif
- err_t ethernetif_init(struct netif *netif)
- {
- LWIP_ASSERT("netif != NULL", (netif != NULL));
- #if LWIP_NETIF_HOSTNAME
-
- netif->hostname = "lwip";
- #endif
-
-
- netif->name[0] = IFNAME0;
- netif->name[1] = IFNAME1;
-
- #if LWIP_IPV4
- #if LWIP_ARP || LWIP_ETHERNET
- #if LWIP_ARP
- netif->output = etharp_output;
- #else
-
- netif->output = low_level_output_arp_off;
- #endif
- #endif
- #endif
- #if LWIP_IPV6
- netif->output_ip6 = ethip6_output;
- #endif
- netif->linkoutput = low_level_output;
-
- low_level_init(netif);
- return ERR_OK;
- }
- void pbuf_free_custom(struct pbuf *p)
- {
- struct pbuf_custom* custom_pbuf = (struct pbuf_custom*)p;
- LWIP_MEMPOOL_FREE(RX_POOL, custom_pbuf);
-
- if (RxAllocStatus == RX_ALLOC_ERROR)
- {
- RxAllocStatus = RX_ALLOC_OK;
- osSemaphoreRelease(RxPktSemaphore);
- }
- }
- u32_t sys_now(void)
- {
- return HAL_GetTick();
- }
- void HAL_ETH_MspInit(ETH_HandleTypeDef* ethHandle)
- {
- GPIO_InitTypeDef GPIO_InitStruct = {0};
- if(ethHandle->Instance==ETH)
- {
-
-
-
- __HAL_RCC_ETH1MAC_CLK_ENABLE();
- __HAL_RCC_ETH1TX_CLK_ENABLE();
- __HAL_RCC_ETH1RX_CLK_ENABLE();
- __HAL_RCC_GPIOC_CLK_ENABLE();
- __HAL_RCC_GPIOA_CLK_ENABLE();
- __HAL_RCC_GPIOB_CLK_ENABLE();
-
- GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4
- |GPIO_PIN_5;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
- GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
- |GPIO_PIN_7;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
- HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
- GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_11|GPIO_PIN_12
- |GPIO_PIN_13|GPIO_PIN_8;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
- HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
- GPIO_InitStruct.Pin = GPIO_PIN_10;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
- HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
- HAL_NVIC_SetPriority(ETH_IRQn, 5, 0);
- HAL_NVIC_EnableIRQ(ETH_IRQn);
-
-
- }
- }
- void HAL_ETH_MspDeInit(ETH_HandleTypeDef* ethHandle)
- {
- if(ethHandle->Instance==ETH)
- {
-
-
-
- __HAL_RCC_ETH1MAC_CLK_DISABLE();
- __HAL_RCC_ETH1TX_CLK_DISABLE();
- __HAL_RCC_ETH1RX_CLK_DISABLE();
-
- HAL_GPIO_DeInit(GPIOC, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4
- |GPIO_PIN_5);
- HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
- |GPIO_PIN_7);
- HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_11|GPIO_PIN_12
- |GPIO_PIN_13|GPIO_PIN_8);
-
- HAL_NVIC_DisableIRQ(ETH_IRQn);
-
-
- }
- }
- int32_t ETH_PHY_IO_Init(void)
- {
-
-
- HAL_ETH_SetMDIOClockRange(&heth);
- return 0;
- }
- int32_t ETH_PHY_IO_DeInit (void)
- {
- return 0;
- }
- int32_t ETH_PHY_IO_ReadReg(uint32_t DevAddr, uint32_t RegAddr, uint32_t *pRegVal)
- {
- if(HAL_ETH_ReadPHYRegister(&heth, DevAddr, RegAddr, pRegVal) != HAL_OK)
- {
- return -1;
- }
- return 0;
- }
- int32_t ETH_PHY_IO_WriteReg(uint32_t DevAddr, uint32_t RegAddr, uint32_t RegVal)
- {
- if(HAL_ETH_WritePHYRegister(&heth, DevAddr, RegAddr, RegVal) != HAL_OK)
- {
- return -1;
- }
- return 0;
- }
- int32_t ETH_PHY_IO_GetTick(void)
- {
- return HAL_GetTick();
- }
- void ethernet_link_thread(void* argument)
- {
- ETH_MACConfigTypeDef MACConf = {0};
- int32_t PHYLinkState = 0;
- uint32_t linkchanged = 0U, speed = 0U, duplex = 0U;
- struct netif *netif = (struct netif *) argument;
- #if USE_DHCP
- enum dhcp_states DHCP_state = DHCP_START;
- #endif
-
- #define HAL_ETH_Start HAL_ETH_Start_IT
-
- for(;;)
- {
- PHYLinkState = DP83848_GetLinkState(&DP83848);
- if(netif_is_link_up(netif) && (PHYLinkState <= DP83848_STATUS_LINK_DOWN))
- {
- HAL_ETH_Stop_IT(&heth);
- LOCK_TCPIP_CORE();
- netif_set_down(netif);
- netif_set_link_down(netif);
- UNLOCK_TCPIP_CORE();
- printf("Link down...\r\n");
- }
- else if(!netif_is_link_up(netif) && (PHYLinkState > DP83848_STATUS_LINK_DOWN))
- {
- switch (PHYLinkState)
- {
- case DP83848_STATUS_100MBITS_FULLDUPLEX:
- duplex = ETH_FULLDUPLEX_MODE;
- speed = ETH_SPEED_100M;
- linkchanged = 1;
- break;
- case DP83848_STATUS_100MBITS_HALFDUPLEX:
- duplex = ETH_HALFDUPLEX_MODE;
- speed = ETH_SPEED_100M;
- linkchanged = 1;
- break;
- case DP83848_STATUS_10MBITS_FULLDUPLEX:
- duplex = ETH_FULLDUPLEX_MODE;
- speed = ETH_SPEED_10M;
- linkchanged = 1;
- break;
- case DP83848_STATUS_10MBITS_HALFDUPLEX:
- duplex = ETH_HALFDUPLEX_MODE;
- speed = ETH_SPEED_10M;
- linkchanged = 1;
- break;
- default:
- break;
- }
- if(linkchanged)
- {
-
- HAL_ETH_GetMACConfig(&heth, &MACConf);
- MACConf.DuplexMode = duplex;
- MACConf.Speed = speed;
- HAL_ETH_SetMACConfig(&heth, &MACConf);
- HAL_ETH_Start_IT(&heth);
- LOCK_TCPIP_CORE();
- netif_set_up(netif);
- netif_set_link_up(netif);
- UNLOCK_TCPIP_CORE();
- printf("Link up...\r\n");
- }
- }
- #if USE_DHCP
- dhcp_sm(netif, &DHCP_state);
- #endif
-
- osDelay(pdMS_TO_TICKS(500));
- continue;
- osDelay(100);
- }
- }
- __weak void ethernetif_notify_conn_changed(struct netif *netif)
- {
-
- }
- void HAL_ETH_RxAllocateCallback(uint8_t **buff)
- {
- struct pbuf_custom *p = LWIP_MEMPOOL_ALLOC(RX_POOL);
- if (p)
- {
-
- *buff = (uint8_t *)p + offsetof(RxBuff_t, buff);
- p->custom_free_function = pbuf_free_custom;
-
- pbuf_alloced_custom(PBUF_RAW, 0, PBUF_REF, p, *buff, ETH_RX_BUFFER_SIZE);
- }
- else
- {
- RxAllocStatus = RX_ALLOC_ERROR;
- *buff = NULL;
- }
- }
- void HAL_ETH_RxLinkCallback(void **pStart, void **pEnd, uint8_t *buff, uint16_t Length)
- {
- struct pbuf **ppStart = (struct pbuf **)pStart;
- struct pbuf **ppEnd = (struct pbuf **)pEnd;
- struct pbuf *p = NULL;
-
- p = (struct pbuf *)(buff - offsetof(RxBuff_t, buff));
- p->next = NULL;
- p->tot_len = 0;
- p->len = Length;
-
- if (!*ppStart)
- {
-
- *ppStart = p;
- }
- else
- {
-
- (*ppEnd)->next = p;
- }
- *ppEnd = p;
-
- for (p = *ppStart; p != NULL; p = p->next)
- {
- p->tot_len += Length;
- }
-
- SCB_InvalidateDCache_by_Addr((uint32_t *)buff, Length);
- }
- void HAL_ETH_TxFreeCallback(uint32_t * buff)
- {
- pbuf_free((struct pbuf *)buff);
- }
- static osThreadId_t lwip_core_lock_holder_thread_id;
- static osThreadId_t lwip_tcpip_thread_id;
- void sys_lock_tcpip_core(void){
- sys_mutex_lock(&lock_tcpip_core);
- lwip_core_lock_holder_thread_id = osThreadGetId();
- }
- void sys_unlock_tcpip_core(void){
- lwip_core_lock_holder_thread_id = 0;
- sys_mutex_unlock(&lock_tcpip_core);
- }
- void sys_check_core_locking(void){
-
- LWIP_ASSERT("Function called from interrupt context", (SCB->ICSR & SCB_ICSR_VECTACTIVE_Msk) == 0);
- if (lwip_tcpip_thread_id != 0) {
- osThreadId_t current_thread_id = osThreadGetId();
- #if LWIP_TCPIP_CORE_LOCKING
- LWIP_ASSERT("Function called without core lock", current_thread_id == lwip_core_lock_holder_thread_id);
-
- #warning Below check should be removed in production code
- if(current_thread_id != lwip_core_lock_holder_thread_id) __BKPT(0);
- #else
- LWIP_ASSERT("Function called from wrong thread", current_thread_id == lwip_tcpip_thread_id);
- #endif
- LWIP_UNUSED_ARG(current_thread_id);
- }
- }
- void sys_mark_tcpip_thread(void){
- lwip_tcpip_thread_id = osThreadGetId();
- }
- #if USE_DHCP
- void dhcp_sm(struct netif *netif, enum dhcp_states *state)
- {
- struct dhcp *dhcp;
- ip_addr_t ipaddr;
- ip_addr_t netmask;
- ip_addr_t gw;
- #ifdef DHCP_USER_LOGS
- uint8_t iptxt[20];
- #endif
- switch(*state)
- {
- case DHCP_START:
- *state = DHCP_WAIT_ADDRESS;
- dhcp = (struct dhcp *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP);
- #ifdef DHCP_USER_LOGS
- printf(" State: Looking for DHCP server ...\n");
- #endif
- break;
- case DHCP_WAIT_ADDRESS:
- if (dhcp_supplied_address(netif))
- {
- *state = DHCP_ADDRESS_ASSIGNED;
- #ifdef DHCP_USER_LOGS
- sprintf((char *)iptxt, "%s", ip4addr_ntoa((const ip4_addr_t *)&netif->ip_addr));
- printf("IP address assigned by a DHCP server: %s\n", iptxt);
- #endif
- }
- else
- {
- dhcp = (struct dhcp *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP);
-
- if (dhcp->tries > MAX_DHCP_TRIES)
- {
- *state = DHCP_TIMEOUT;
-
- LOCK_TCPIP_CORE();
- dhcp_stop(netif);
- UNLOCK_TCPIP_CORE();
-
- ipaddr_aton(STATIC_IP, &ipaddr);
- ipaddr_aton(STATIC_MASK, &netmask);
- ipaddr_aton(STATIC_GW, &gw);
- LOCK_TCPIP_CORE();
- netif_set_addr(netif, ip_2_ip4(&ipaddr), ip_2_ip4(&netmask), ip_2_ip4(&gw));
- UNLOCK_TCPIP_CORE();
- #ifdef DHCP_USER_LOGS
- sprintf((char *)iptxt, "%s", ip4addr_ntoa((const ip4_addr_t *)&netif->ip_addr));
- printf("DHCP Timeout !! \n");
- printf("Static IP address: %s\n", iptxt);
- #endif
- }
- }
- break;
- case DHCP_ADDRESS_ASSIGNED:
- dhcp = (struct dhcp *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP);
- if(dhcp->state == 3)
- {
- *state = DHCP_START;
- }
- break;
- default:
- break;
- }
- }
- #endif
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