/* * USB Communications Device Class (CDC) definitions * * CDC says how to talk to lots of different types of network adapters, * notably ethernet adapters and various modems.  It's used mostly with * firmware based USB peripherals. */#define USB_CDC_SUBCLASS_ACM			0x02#define USB_CDC_SUBCLASS_ETHERNET		0x06#define USB_CDC_SUBCLASS_WHCM			0x08#define USB_CDC_SUBCLASS_DMM			0x09#define USB_CDC_SUBCLASS_MDLM			0x0a#define USB_CDC_SUBCLASS_OBEX			0x0b#define USB_CDC_PROTO_NONE			0#define USB_CDC_ACM_PROTO_AT_V25TER		1#define USB_CDC_ACM_PROTO_AT_PCCA101		2#define USB_CDC_ACM_PROTO_AT_PCCA101_WAKE	3#define USB_CDC_ACM_PROTO_AT_GSM		4#define USB_CDC_ACM_PROTO_AT_3G			5#define USB_CDC_ACM_PROTO_AT_CDMA		6#define USB_CDC_ACM_PROTO_VENDOR		0xff/*-------------------------------------------------------------------------*//* * Class-Specific descriptors ... there are a couple dozen of them */#define USB_CDC_HEADER_TYPE		0x00		/* header_desc */#define USB_CDC_CALL_MANAGEMENT_TYPE	0x01		/* call_mgmt_descriptor */#define USB_CDC_ACM_TYPE		0x02		/* acm_descriptor */#define USB_CDC_UNION_TYPE		0x06		/* union_desc */#define USB_CDC_COUNTRY_TYPE		0x07#define USB_CDC_NETWORK_TERMINAL_TYPE	0x0a		/* network_terminal_desc */#define USB_CDC_ETHERNET_TYPE		0x0f		/* ether_desc */#define USB_CDC_WHCM_TYPE		0x11#define USB_CDC_MDLM_TYPE		0x12		/* mdlm_desc */#define USB_CDC_MDLM_DETAIL_TYPE	0x13		/* mdlm_detail_desc */#define USB_CDC_DMM_TYPE		0x14#define USB_CDC_OBEX_TYPE		0x15/* "Header Functional Descriptor" from CDC spec  5.2.3.1 */struct usb_cdc_header_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__le16	bcdCDC;} __attribute__ ((packed));/* "Call Management Descriptor" from CDC spec  5.2.3.2 */struct usb_cdc_call_mgmt_descriptor {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	bmCapabilities;#define USB_CDC_CALL_MGMT_CAP_CALL_MGMT		0x01#define USB_CDC_CALL_MGMT_CAP_DATA_INTF		0x02	__u8	bDataInterface;} __attribute__ ((packed));/* "Abstract Control Management Descriptor" from CDC spec  5.2.3.3 */struct usb_cdc_acm_descriptor {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	bmCapabilities;} __attribute__ ((packed));/* capabilities from 5.2.3.3 */#define USB_CDC_COMM_FEATURE	0x01#define USB_CDC_CAP_LINE	0x02#define USB_CDC_CAP_BRK	0x04#define USB_CDC_CAP_NOTIFY	0x08/* "Union Functional Descriptor" from CDC spec 5.2.3.8 */struct usb_cdc_union_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	bMasterInterface0;	__u8	bSlaveInterface0;	/* ... and there could be other slave interfaces */} __attribute__ ((packed));/* "Country Selection Functional Descriptor" from CDC spec 5.2.3.9 */struct usb_cdc_country_functional_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	iCountryCodeRelDate;	__le16	wCountyCode0;	/* ... and there can be a lot of country codes */} __attribute__ ((packed));/* "Network Channel Terminal Functional Descriptor" from CDC spec 5.2.3.11 */struct usb_cdc_network_terminal_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	bEntityId;	__u8	iName;	__u8	bChannelIndex;	__u8	bPhysicalInterface;} __attribute__ ((packed));/* "Ethernet Networking Functional Descriptor" from CDC spec 5.2.3.16 */struct usb_cdc_ether_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__u8	iMACAddress;	__le32	bmEthernetStatistics;	__le16	wMaxSegmentSize;	__le16	wNumberMCFilters;	__u8	bNumberPowerFilters;} __attribute__ ((packed));/* "MDLM Functional Descriptor" from CDC WMC spec 6.7.2.3 */struct usb_cdc_mdlm_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	__le16	bcdVersion;	__u8	bGUID[16];} __attribute__ ((packed));/* "MDLM Detail Functional Descriptor" from CDC WMC spec 6.7.2.4 */struct usb_cdc_mdlm_detail_desc {	__u8	bLength;	__u8	bDescriptorType;	__u8	bDescriptorSubType;	/* type is associated with mdlm_desc.bGUID */	__u8	bGuidDescriptorType;	__u8	bDetailData[0];} __attribute__ ((packed));/*-------------------------------------------------------------------------*//* * Class-Specific Control Requests (6.2) * * section 3.6.2.1 table 4 has the ACM profile, for modems. * section 3.8.2 table 10 has the ethernet profile. * * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant, * heavily dependent on the encapsulated (proprietary) command mechanism. */#define USB_CDC_SEND_ENCAPSULATED_COMMAND	0x00#define USB_CDC_GET_ENCAPSULATED_RESPONSE	0x01#define USB_CDC_REQ_SET_LINE_CODING		0x20#define USB_CDC_REQ_GET_LINE_CODING		0x21#define USB_CDC_REQ_SET_CONTROL_LINE_STATE	0x22#define USB_CDC_REQ_SEND_BREAK			0x23#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS	0x40#define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER	0x41#define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER	0x42#define USB_CDC_SET_ETHERNET_PACKET_FILTER	0x43#define USB_CDC_GET_ETHERNET_STATISTIC		0x44/* Line Coding Structure from CDC spec 6.2.13 */struct usb_cdc_line_coding {	__le32	dwDTERate;	__u8	bCharFormat;#define USB_CDC_1_STOP_BITS			0#define USB_CDC_1_5_STOP_BITS			1#define USB_CDC_2_STOP_BITS			2	__u8	bParityType;#define USB_CDC_NO_PARITY			0#define USB_CDC_ODD_PARITY			1#define USB_CDC_EVEN_PARITY			2#define USB_CDC_MARK_PARITY			3#define USB_CDC_SPACE_PARITY			4	__u8	bDataBits;} __attribute__ ((packed));/* table 62; bits in multicast filter */#define	USB_CDC_PACKET_TYPE_PROMISCUOUS		(1 << 0)#define	USB_CDC_PACKET_TYPE_ALL_MULTICAST	(1 << 1) /* no filter */#define	USB_CDC_PACKET_TYPE_DIRECTED		(1 << 2)#define	USB_CDC_PACKET_TYPE_BROADCAST		(1 << 3)#define	USB_CDC_PACKET_TYPE_MULTICAST		(1 << 4) /* filtered *//*-------------------------------------------------------------------------*//* * Class-Specific Notifications (6.3) sent by interrupt transfers * * section 3.8.2 table 11 of the CDC spec lists Ethernet notifications * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS * RNDIS also defines its own bit-incompatible notifications */#define USB_CDC_NOTIFY_NETWORK_CONNECTION	0x00#define USB_CDC_NOTIFY_RESPONSE_AVAILABLE	0x01#define USB_CDC_NOTIFY_SERIAL_STATE		0x20#define USB_CDC_NOTIFY_SPEED_CHANGE		0x2astruct usb_cdc_notification {	__u8	bmRequestType;	__u8	bNotificationType;	__le16	wValue;	__le16	wIndex;	__le16	wLength;} __attribute__ ((packed));