USB: Add USB RNDIS gadget protocol

Port USB gadget RNDIS protocol support from linux-2.6.26
(.27 gadget stack actually has composite drivers).

Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h
new file mode 100644
index 0000000..73a1204
--- /dev/null
+++ b/drivers/usb/gadget/rndis.h
@@ -0,0 +1,252 @@
+/*
+ * RNDIS	Definitions for Remote NDIS
+ *
+ * Authors:	Benedikt Spranger, Pengutronix
+ *		Robert Schwebel, Pengutronix
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		version 2, as published by the Free Software Foundation.
+ *
+ *		This software was originally developed in conformance with
+ *		Microsoft's Remote NDIS Specification License Agreement.
+ */
+
+#ifndef _USBGADGET_RNDIS_H
+#define _USBGADGET_RNDIS_H
+
+#include "ndis.h"
+
+#define RNDIS_MAXIMUM_FRAME_SIZE	1518
+#define RNDIS_MAX_TOTAL_SIZE		1558
+
+/* Remote NDIS Versions */
+#define RNDIS_MAJOR_VERSION		1
+#define RNDIS_MINOR_VERSION		0
+
+/* Status Values */
+#define RNDIS_STATUS_SUCCESS		0x00000000U	/* Success           */
+#define RNDIS_STATUS_FAILURE		0xC0000001U	/* Unspecified error */
+#define RNDIS_STATUS_INVALID_DATA	0xC0010015U	/* Invalid data      */
+#define RNDIS_STATUS_NOT_SUPPORTED	0xC00000BBU	/* Unsupported request */
+#define RNDIS_STATUS_MEDIA_CONNECT	0x4001000BU	/* Device connected  */
+#define RNDIS_STATUS_MEDIA_DISCONNECT	0x4001000CU	/* Device disconnected */
+/*
+ * For all not specified status messages:
+ * RNDIS_STATUS_Xxx -> NDIS_STATUS_Xxx
+ */
+
+/* Message Set for Connectionless (802.3) Devices */
+#define REMOTE_NDIS_PACKET_MSG		0x00000001U
+#define REMOTE_NDIS_INITIALIZE_MSG	0x00000002U	/* Initialize device */
+#define REMOTE_NDIS_HALT_MSG		0x00000003U
+#define REMOTE_NDIS_QUERY_MSG		0x00000004U
+#define REMOTE_NDIS_SET_MSG		0x00000005U
+#define REMOTE_NDIS_RESET_MSG		0x00000006U
+#define REMOTE_NDIS_INDICATE_STATUS_MSG	0x00000007U
+#define REMOTE_NDIS_KEEPALIVE_MSG	0x00000008U
+
+/* Message completion */
+#define REMOTE_NDIS_INITIALIZE_CMPLT	0x80000002U
+#define REMOTE_NDIS_QUERY_CMPLT		0x80000004U
+#define REMOTE_NDIS_SET_CMPLT		0x80000005U
+#define REMOTE_NDIS_RESET_CMPLT		0x80000006U
+#define REMOTE_NDIS_KEEPALIVE_CMPLT	0x80000008U
+
+/* Device Flags */
+#define RNDIS_DF_CONNECTIONLESS		0x00000001U
+#define RNDIS_DF_CONNECTION_ORIENTED	0x00000002U
+
+#define RNDIS_MEDIUM_802_3		0x00000000U
+
+/* from drivers/net/sk98lin/h/skgepnmi.h */
+#define OID_PNP_CAPABILITIES			0xFD010100
+#define OID_PNP_SET_POWER			0xFD010101
+#define OID_PNP_QUERY_POWER			0xFD010102
+#define OID_PNP_ADD_WAKE_UP_PATTERN		0xFD010103
+#define OID_PNP_REMOVE_WAKE_UP_PATTERN		0xFD010104
+#define OID_PNP_ENABLE_WAKE_UP			0xFD010106
+
+
+typedef struct rndis_init_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	MaxTransferSize;
+} rndis_init_msg_type;
+
+typedef struct rndis_init_cmplt_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	DeviceFlags;
+	__le32	Medium;
+	__le32	MaxPacketsPerTransfer;
+	__le32	MaxTransferSize;
+	__le32	PacketAlignmentFactor;
+	__le32	AFListOffset;
+	__le32	AFListSize;
+} rndis_init_cmplt_type;
+
+typedef struct rndis_halt_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_halt_msg_type;
+
+typedef struct rndis_query_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_query_msg_type;
+
+typedef struct rndis_query_cmplt_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+} rndis_query_cmplt_type;
+
+typedef struct rndis_set_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_set_msg_type;
+
+typedef struct rndis_set_cmplt_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_set_cmplt_type;
+
+typedef struct rndis_reset_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Reserved;
+} rndis_reset_msg_type;
+
+typedef struct rndis_reset_cmplt_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	AddressingReset;
+} rndis_reset_cmplt_type;
+
+typedef struct rndis_indicate_status_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	StatusBufferLength;
+	__le32	StatusBufferOffset;
+} rndis_indicate_status_msg_type;
+
+typedef struct rndis_keepalive_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_keepalive_msg_type;
+
+typedef struct rndis_keepalive_cmplt_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_keepalive_cmplt_type;
+
+struct rndis_packet_msg_type {
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	DataOffset;
+	__le32	DataLength;
+	__le32	OOBDataOffset;
+	__le32	OOBDataLength;
+	__le32	NumOOBDataElements;
+	__le32	PerPacketInfoOffset;
+	__le32	PerPacketInfoLength;
+	__le32	VcHandle;
+	__le32	Reserved;
+} __attribute__ ((packed));
+
+struct rndis_config_parameter {
+	__le32	ParameterNameOffset;
+	__le32	ParameterNameLength;
+	__le32	ParameterType;
+	__le32	ParameterValueOffset;
+	__le32	ParameterValueLength;
+};
+
+/* implementation specific */
+enum rndis_state {
+	RNDIS_UNINITIALIZED,
+	RNDIS_INITIALIZED,
+	RNDIS_DATA_INITIALIZED,
+};
+
+typedef struct rndis_resp_t {
+	struct list_head	list;
+	u8			*buf;
+	u32			length;
+	int			send;
+} rndis_resp_t;
+
+typedef struct rndis_params {
+	u8			confignr;
+	u8			used;
+	u16			saved_filter;
+	enum rndis_state	state;
+	u32			medium;
+	u32			speed;
+	u32			media_state;
+
+	const u8		*host_mac;
+	u16			*filter;
+	struct eth_device	*dev;
+	struct net_device_stats *stats;
+	int			mtu;
+
+	u32			vendorID;
+	const char		*vendorDescr;
+	int			(*ack)(struct eth_device *);
+	struct list_head	resp_queue;
+} rndis_params;
+
+/* RNDIS Message parser and other useless functions */
+int  rndis_msg_parser(u8 configNr, u8 *buf);
+enum rndis_state rndis_get_state(int configNr);
+int  rndis_register(int (*rndis_control_ack)(struct eth_device *));
+void rndis_deregister(int configNr);
+int  rndis_set_param_dev(u8 configNr, struct eth_device *dev, int mtu,
+			struct net_device_stats *stats, u16 *cdc_filter);
+int  rndis_set_param_vendor(u8 configNr, u32 vendorID,
+			    const char *vendorDescr);
+int  rndis_set_param_medium(u8 configNr, u32 medium, u32 speed);
+void rndis_add_hdr(void *bug, int length);
+int rndis_rm_hdr(void *bug, int length);
+u8   *rndis_get_next_response(int configNr, u32 *length);
+void rndis_free_response(int configNr, u8 *buf);
+
+void rndis_uninit(int configNr);
+int  rndis_signal_connect(int configNr);
+int  rndis_signal_disconnect(int configNr);
+extern void rndis_set_host_mac(int configNr, const u8 *addr);
+
+int rndis_init(void);
+void rndis_exit(void);
+
+#endif  /* _USBGADGET_RNDIS_H */