/* * Copyright (c) 2024, sakumisu * * SPDX-License-Identifier: Apache-2.0 */ #include "usbd_core.h" #include "usbd_cdc_ecm.h" /*!< endpoint address */ #define CDC_IN_EP 0x81 #define CDC_OUT_EP 0x02 #define CDC_INT_EP 0x83 #define USBD_VID 0xFFFF #define USBD_PID 0xFFFF #define USBD_MAX_POWER 100 #define USBD_LANGID_STRING 1033 /*!< config descriptor size */ #define USB_CONFIG_SIZE (9 + CDC_ECM_DESCRIPTOR_LEN) #ifdef CONFIG_USB_HS #define CDC_MAX_MPS 512 #else #define CDC_MAX_MPS 64 #endif #define CDC_ECM_ETH_STATISTICS_BITMAP 0x00000000 /* str idx = 4 is for mac address: aa:bb:cc:dd:ee:ff*/ #define CDC_ECM_MAC_STRING_INDEX 4 /*!< global descriptor */ static const uint8_t cdc_ecm_descriptor[] = { USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xEF, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01), USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER), CDC_ECM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, CDC_MAX_MPS, CDC_ECM_ETH_STATISTICS_BITMAP, CONFIG_CDC_ECM_ETH_MAX_SEGSZE, 0, 0, CDC_ECM_MAC_STRING_INDEX), /////////////////////////////////////// /// string0 descriptor /////////////////////////////////////// USB_LANGID_INIT(USBD_LANGID_STRING), /////////////////////////////////////// /// string1 descriptor /////////////////////////////////////// 0x14, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'C', 0x00, /* wcChar0 */ 'h', 0x00, /* wcChar1 */ 'e', 0x00, /* wcChar2 */ 'r', 0x00, /* wcChar3 */ 'r', 0x00, /* wcChar4 */ 'y', 0x00, /* wcChar5 */ 'U', 0x00, /* wcChar6 */ 'S', 0x00, /* wcChar7 */ 'B', 0x00, /* wcChar8 */ /////////////////////////////////////// /// string2 descriptor /////////////////////////////////////// 0x2E, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'C', 0x00, /* wcChar0 */ 'h', 0x00, /* wcChar1 */ 'e', 0x00, /* wcChar2 */ 'r', 0x00, /* wcChar3 */ 'r', 0x00, /* wcChar4 */ 'y', 0x00, /* wcChar5 */ 'U', 0x00, /* wcChar6 */ 'S', 0x00, /* wcChar7 */ 'B', 0x00, /* wcChar8 */ ' ', 0x00, /* wcChar9 */ 'C', 0x00, /* wcChar10 */ 'D', 0x00, /* wcChar11 */ 'C', 0x00, /* wcChar12 */ ' ', 0x00, /* wcChar13 */ 'E', 0x00, /* wcChar14 */ 'C', 0x00, /* wcChar15 */ 'M', 0x00, /* wcChar16 */ ' ', 0x00, /* wcChar17 */ 'D', 0x00, /* wcChar18 */ 'E', 0x00, /* wcChar19 */ 'M', 0x00, /* wcChar20 */ 'O', 0x00, /* wcChar21 */ /////////////////////////////////////// /// string3 descriptor /////////////////////////////////////// 0x16, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ '2', 0x00, /* wcChar0 */ '0', 0x00, /* wcChar1 */ '2', 0x00, /* wcChar2 */ '2', 0x00, /* wcChar3 */ '1', 0x00, /* wcChar4 */ '2', 0x00, /* wcChar5 */ '3', 0x00, /* wcChar6 */ '4', 0x00, /* wcChar7 */ '5', 0x00, /* wcChar8 */ '6', 0x00, /* wcChar9 */ /////////////////////////////////////// /// string4 descriptor /////////////////////////////////////// 0x1A, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'a', 0x00, /* wcChar0 */ 'a', 0x00, /* wcChar1 */ 'b', 0x00, /* wcChar2 */ 'b', 0x00, /* wcChar3 */ 'c', 0x00, /* wcChar4 */ 'c', 0x00, /* wcChar5 */ 'd', 0x00, /* wcChar6 */ 'd', 0x00, /* wcChar7 */ 'e', 0x00, /* wcChar8 */ 'e', 0x00, /* wcChar9 */ 'f', 0x00, /* wcChar10 */ 'f', 0x00, /* wcChar11 */ #ifdef CONFIG_USB_HS /////////////////////////////////////// /// device qualifier descriptor /////////////////////////////////////// 0x0a, USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER, 0x00, 0x02, 0x02, 0x02, 0x01, 0x40, 0x01, 0x00, #endif 0x00 }; const uint8_t mac[6] = { 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }; /*Static IP ADDRESS: IP_ADDR0.IP_ADDR1.IP_ADDR2.IP_ADDR3 */ #define IP_ADDR0 (uint8_t)192 #define IP_ADDR1 (uint8_t)168 #define IP_ADDR2 (uint8_t)123 #define IP_ADDR3 (uint8_t)100 /*NETMASK*/ #define NETMASK_ADDR0 (uint8_t)255 #define NETMASK_ADDR1 (uint8_t)255 #define NETMASK_ADDR2 (uint8_t)255 #define NETMASK_ADDR3 (uint8_t)0 /*Gateway Address*/ #define GW_ADDR0 (uint8_t)192 #define GW_ADDR1 (uint8_t)168 #define GW_ADDR2 (uint8_t)123 #define GW_ADDR3 (uint8_t)1 #include "netif/etharp.h" #include "lwip/init.h" #include "lwip/netif.h" #include "lwip/pbuf.h" const ip_addr_t ipaddr = IPADDR4_INIT_BYTES(IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3); const ip_addr_t netmask = IPADDR4_INIT_BYTES(NETMASK_ADDR0, NETMASK_ADDR1, NETMASK_ADDR2, NETMASK_ADDR3); const ip_addr_t gateway = IPADDR4_INIT_BYTES(GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3); static struct netif cdc_ecm_netif; //network interface /* Network interface name */ #define IFNAME0 'E' #define IFNAME1 'X' static err_t linkoutput_fn(struct netif *netif, struct pbuf *p) { static int ret; ret = usbd_cdc_ecm_eth_tx(p); if (ret == 0) return ERR_OK; else return ERR_BUF; } err_t cdc_ecm_if_init(struct netif *netif) { LWIP_ASSERT("netif != NULL", (netif != NULL)); netif->mtu = 1500; netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_UP; netif->state = NULL; netif->name[0] = IFNAME0; netif->name[1] = IFNAME1; netif->output = etharp_output; netif->linkoutput = linkoutput_fn; return ERR_OK; } err_t cdc_ecm_if_input(struct netif *netif) { static err_t err; static struct pbuf *p; p = usbd_cdc_ecm_eth_rx(); if (p != NULL) { err = netif->input(p, netif); if (err != ERR_OK) { pbuf_free(p); } } else { return ERR_BUF; } return err; } void cdc_ecm_lwip_init(void) { struct netif *netif = &cdc_ecm_netif; lwip_init(); netif->hwaddr_len = 6; memcpy(netif->hwaddr, mac, 6); netif = netif_add(netif, &ipaddr, &netmask, &gateway, NULL, cdc_ecm_if_init, netif_input); netif_set_default(netif); while (!netif_is_up(netif)) { } // while (dhserv_init(&dhcp_config)) {} // while (dnserv_init(&ipaddr, PORT_DNS, dns_query_proc)) {} } void usbd_cdc_ecm_data_recv_done(uint8_t *buf, uint32_t len) { } void cdc_ecm_input_poll(void) { cdc_ecm_if_input(&cdc_ecm_netif); } static void usbd_event_handler(uint8_t busid, uint8_t event) { switch (event) { case USBD_EVENT_RESET: break; case USBD_EVENT_CONNECTED: break; case USBD_EVENT_DISCONNECTED: break; case USBD_EVENT_RESUME: break; case USBD_EVENT_SUSPEND: break; case USBD_EVENT_CONFIGURED: break; case USBD_EVENT_SET_REMOTE_WAKEUP: break; case USBD_EVENT_CLR_REMOTE_WAKEUP: break; default: break; } } struct usbd_interface intf0; struct usbd_interface intf1; /* ecm only supports in linux, and you should input the following command * * sudo ifconfig enxaabbccddeeff up * sudo dhcpclient enxaabbccddeeff */ void cdc_ecm_init(uint8_t busid, uint32_t reg_base) { cdc_ecm_lwip_init(); usbd_desc_register(busid, cdc_ecm_descriptor); usbd_add_interface(busid, usbd_cdc_ecm_init_intf(&intf0, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP)); usbd_add_interface(busid, usbd_cdc_ecm_init_intf(&intf1, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP)); usbd_initialize(busid, reg_base, usbd_event_handler); }