156 lines
3.7 KiB
C
156 lines
3.7 KiB
C
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#include "app_dhcp.h"
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#include "app_ethernet.h"
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#include <common/stm32_nucleo/networking/udp_config.h>
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#include <common/stm32_nucleo/networking/ethernetif.h>
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#include <OBSWConfig.h>
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#include <lwip/dhcp.h>
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#include <stm32h7xx_nucleo.h>
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#include <stdbool.h>
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#if LWIP_DHCP == 1
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uint8_t DHCP_state = DHCP_OFF;
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uint32_t DHCPfineTimer = 0;
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void handle_dhcp_timeout(struct netif* netif);
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void handle_dhcp_start(struct netif* netif);
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void handle_dhcp_wait(struct netif* netif, struct dhcp** dhcp);
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void handle_dhcp_down(struct netif* netif);
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/**
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* @brief DHCP_Process_Handle
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* @param None
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* @retval None
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*/
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void DHCP_Process(struct netif *netif)
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{
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struct dhcp* dhcp = NULL;
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switch (DHCP_state) {
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case DHCP_START: {
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handle_dhcp_start(netif);
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break;
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}
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case DHCP_WAIT_ADDRESS: {
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handle_dhcp_wait(netif, &dhcp);
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break;
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}
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case DHCP_LINK_DOWN: {
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handle_dhcp_down(netif);
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break;
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}
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default: {
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break;
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}
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}
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}
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void handle_dhcp_timeout(struct netif* netif) {
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ip_addr_t ipaddr;
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ip_addr_t netmask;
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ip_addr_t gw;
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DHCP_state = DHCP_TIMEOUT;
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/* Stop DHCP */
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dhcp_stop(netif);
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/* Static address used */
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set_lwip_addresses(&ipaddr, &netmask, &gw);
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netif_set_addr(netif, &ipaddr, &netmask, &gw);
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printf("DHCP Timeout\n\r");
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uint8_t iptxt[20];
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sprintf((char *)iptxt, "%s", ip4addr_ntoa(netif_ip4_addr(netif)));
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printf("Assigning static IP address: %s\n", iptxt);
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ETH_HandleTypeDef* handle = getEthernetHandle();
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handle->gState = HAL_ETH_STATE_READY;
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#if OBSW_ETHERNET_TMTC_COMMANDING == 1
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#if OBSW_ETHERNET_USE_LED1_LED2 == 1
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BSP_LED_On(LED1);
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BSP_LED_Off(LED2);
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#endif
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#endif
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}
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/**
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* @brief DHCP periodic check
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* @param netif
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* @retval None
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*/
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void DHCP_Periodic_Handle(struct netif *netif)
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{
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/* Fine DHCP periodic process every 500ms */
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if (HAL_GetTick() - DHCPfineTimer >= DHCP_FINE_TIMER_MSECS) {
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DHCPfineTimer = HAL_GetTick();
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/* process DHCP state machine */
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DHCP_Process(netif);
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}
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}
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void handle_dhcp_start(struct netif* netif) {
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printf("handle_dhcp_start: Looking for DHCP server ...\n\r");
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#if OBSW_ETHERNET_TMTC_COMMANDING == 1
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#if OBSW_ETHERNET_USE_LED1_LED2 == 1
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BSP_LED_Off(LED1);
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BSP_LED_Off(LED2);
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#endif
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#endif
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ip_addr_set_zero_ip4(&netif->ip_addr);
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ip_addr_set_zero_ip4(&netif->netmask);
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ip_addr_set_zero_ip4(&netif->gw);
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dhcp_start(netif);
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DHCP_state = DHCP_WAIT_ADDRESS;
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}
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void handle_dhcp_wait(struct netif* netif, struct dhcp** dhcp) {
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if (dhcp_supplied_address(netif)) {
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DHCP_state = DHCP_ADDRESS_ASSIGNED;
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printf("IP address assigned by a DHCP server: %s\n\r", ip4addr_ntoa(netif_ip4_addr(netif)));
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printf("Listener port: %d\n\r", UDP_SERVER_PORT);
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#if OBSW_ETHERNET_TMTC_COMMANDING == 1
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#if OBSW_ETHERNET_USE_LED1_LED2 == 1
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BSP_LED_On(LED1);
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BSP_LED_Off(LED2);
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#endif
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#endif
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}
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else {
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*dhcp = (struct dhcp*) netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP);
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/* DHCP timeout */
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if ((*dhcp)->tries > MAX_DHCP_TRIES)
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{
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handle_dhcp_timeout(netif);
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}
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}
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}
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void handle_dhcp_down(struct netif* netif) {
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DHCP_state = DHCP_OFF;
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#if OBSW_ETHERNET_TMTC_COMMANDING == 1
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printf("DHCP_Process: The network cable is not connected.\n\r");
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#if OBSW_ETHERNET_USE_LED1_LED2 == 1
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BSP_LED_Off(LED1);
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BSP_LED_On(LED2);
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#endif
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#endif
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/* Global boolean to track ethernet connection */
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set_eth_cable_connected(false);
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}
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uint8_t get_dhcp_state() {
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return DHCP_state;
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}
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void set_dhcp_state(uint8_t new_state) {
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DHCP_state = new_state;
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}
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#endif /* LWIP_DHCP == 1 */
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