// SPDX-License-Identifier: GPL-2.0-or-later /* * CDC Ethernet based networking peripherals * Copyright (C) 2003-2005 by David Brownell * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync) */ // #define DEBUG // error path messages, extra info // #define VERBOSE // more; success messages #include <linux/module.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/mii.h> #include <linux/usb.h> #include <linux/usb/cdc.h> #include <linux/usb/usbnet.h> #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST) static int is_rndis(struct usb_interface_descriptor *desc) { … } static int is_activesync(struct usb_interface_descriptor *desc) { … } static int is_wireless_rndis(struct usb_interface_descriptor *desc) { … } static int is_novatel_rndis(struct usb_interface_descriptor *desc) { … } #else #define is_rndis … #define is_activesync … #define is_wireless_rndis … #define is_novatel_rndis … #endif static const u8 mbm_guid[16] = …; void usbnet_cdc_update_filter(struct usbnet *dev) { … } EXPORT_SYMBOL_GPL(…); /* We need to override usbnet_*_link_ksettings in bind() */ static const struct ethtool_ops cdc_ether_ethtool_ops = …; /* probes control interface, claims data interface, collects the bulk * endpoints, activates data interface (if needed), maybe sets MTU. * all pure cdc, except for certain firmware workarounds, and knowing * that rndis uses one different rule. */ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) { … } EXPORT_SYMBOL_GPL(…); /* like usbnet_generic_cdc_bind() but handles filter initialization * correctly */ int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) { … } EXPORT_SYMBOL_GPL(…); void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) { … } EXPORT_SYMBOL_GPL(…); /* Communications Device Class, Ethernet Control model * * Takes two interfaces. The DATA interface is inactive till an altsetting * is selected. Configuration data includes class descriptors. There's * an optional status endpoint on the control interface. * * This should interop with whatever the 2.4 "CDCEther.c" driver * (by Brad Hards) talked with, with more functionality. */ static void speed_change(struct usbnet *dev, __le32 *speeds) { … } void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) { … } EXPORT_SYMBOL_GPL(…); int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) { … } EXPORT_SYMBOL_GPL(…); static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) { … } /* Make sure packets have correct destination MAC address * * A firmware bug observed on some devices (ZTE MF823/831/910) is that the * device sends packets with a static, bogus, random MAC address (event if * device MAC address has been updated). Always set MAC address to that of the * device. */ int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { … } EXPORT_SYMBOL_GPL(…); /* Ensure correct link state * * Some devices (ZTE MF823/831/910) export two carrier on notifications when * connected. This causes the link state to be incorrect. Work around this by * always setting the state to off, then on. */ static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) { … } static const struct driver_info cdc_info = …; static const struct driver_info zte_cdc_info = …; static const struct driver_info wwan_info = …; /*-------------------------------------------------------------------------*/ #define HUAWEI_VENDOR_ID … #define NOVATEL_VENDOR_ID … #define ZTE_VENDOR_ID … #define DELL_VENDOR_ID … #define REALTEK_VENDOR_ID … #define SAMSUNG_VENDOR_ID … #define LENOVO_VENDOR_ID … #define LINKSYS_VENDOR_ID … #define NVIDIA_VENDOR_ID … #define HP_VENDOR_ID … #define MICROSOFT_VENDOR_ID … #define UBLOX_VENDOR_ID … #define TPLINK_VENDOR_ID … #define AQUANTIA_VENDOR_ID … #define ASIX_VENDOR_ID … static const struct usb_device_id products[] = …; MODULE_DEVICE_TABLE(usb, products); static struct usb_driver cdc_driver = …; module_usb_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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