[PATCH] USB: move <linux/usb_cdc.h> to <linux/usb/cdc.h>

This moves <linux/usb_cdc.h> to <linux/usb/cdc.h> to reduce some of the
clutter of usb header files.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 205 insertions, 0 deletions

diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
new file mode 100644
index 0000000..ba617c3
--- /dev/null
+++ b/include/linux/usb/cdc.h
@@ -0,0 +1,205 @@
+/*
+ * 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));
+
+/* "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));
+
+/* "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		0x2a
+
+struct usb_cdc_notification {
+	__u8	bmRequestType;
+	__u8	bNotificationType;
+	__le16	wValue;
+	__le16	wIndex;
+	__le16	wLength;
+} __attribute__ ((packed));
+