1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/usb/net/usbnet.h b/drivers/usb/net/usbnet.h
new file mode 100644
index 000000000000..44026189a8a1
--- /dev/null
+++ b/drivers/usb/net/usbnet.h
@@ -0,0 +1,150 @@
+/*
+ * USB Networking Link Interface
+ *
+ * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net>
+ * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#ifndef __USBNET_H
+#define __USBNET_H
+
+
+/* interface from usbnet core to each USB networking device we handle */
+struct usbnet {
+        /* housekeeping */
+        struct usb_device       *udev;
+        struct driver_info      *driver_info;
+        wait_queue_head_t       *wait;
+
+        /* i/o info: pipes etc */
+        unsigned                in, out;
+        struct usb_host_endpoint *status;
+        unsigned                maxpacket;
+        struct timer_list       delay;
+
+        /* protocol/interface state */
+        struct net_device       *net;
+        struct net_device_stats stats;
+        int                     msg_enable;
+        unsigned long           data [5];
+        u32                     xid;
+        u32                     hard_mtu;       /* count any extra framing */
+        struct mii_if_info      mii;
+
+        /* various kinds of pending driver work */
+        struct sk_buff_head     rxq;
+        struct sk_buff_head     txq;
+        struct sk_buff_head     done;
+        struct urb              *interrupt;
+        struct tasklet_struct   bh;
+
+        struct work_struct      kevent;
+        unsigned long           flags;
+#               define EVENT_TX_HALT    0
+#               define EVENT_RX_HALT    1
+#               define EVENT_RX_MEMORY  2
+#               define EVENT_STS_SPLIT  3
+#               define EVENT_LINK_RESET 4
+};
+
+
+/* interface from the device/framing level "minidriver" to core */
+struct driver_info {
+        char            *description;
+
+        int             flags;
+/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
+#define FLAG_FRAMING_NC 0x0001          /* guard against device dropouts */
+#define FLAG_FRAMING_GL 0x0002          /* genelink batches packets */
+#define FLAG_FRAMING_Z  0x0004          /* zaurus adds a trailer */
+#define FLAG_FRAMING_RN 0x0008          /* RNDIS batches, plus huge header */
+
+#define FLAG_NO_SETINT  0x0010          /* device can't set_interface() */
+#define FLAG_ETHER      0x0020          /* maybe use "eth%d" names */
+
+#define FLAG_FRAMING_AX 0x0040          /* AX88772/178 packets */
+
+        /* init device ... can sleep, or cause probe() failure */
+        int     (*bind)(struct usbnet *, struct usb_interface *);
+
+        /* cleanup device ... can sleep, but can't fail */
+        void    (*unbind)(struct usbnet *, struct usb_interface *);
+
+        /* reset device ... can sleep */
+        int     (*reset)(struct usbnet *);
+
+        /* see if peer is connected ... can sleep */
+        int     (*check_connect)(struct usbnet *);
+
+        /* for status polling */
+        void    (*status)(struct usbnet *, struct urb *);
+
+        /* link reset handling, called from defer_kevent */
+        int     (*link_reset)(struct usbnet *);
+
+        /* fixup rx packet (strip framing) */
+        int     (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);
+
+        /* fixup tx packet (add framing) */
+        struct sk_buff  *(*tx_fixup)(struct usbnet *dev,
+                                struct sk_buff *skb, unsigned flags);
+
+        /* for new devices, use the descriptor-reading code instead */
+        int             in;             /* rx endpoint */
+        int             out;            /* tx endpoint */
+
+        unsigned long   data;           /* Misc driver specific data */
+};
+
+
+/* we record the state for each of our queued skbs */
+enum skb_state {
+        illegal = 0,
+        tx_start, tx_done,
+        rx_start, rx_done, rx_cleanup
+};
+
+struct skb_data {       /* skb->cb is one of these */
+        struct urb              *urb;
+        struct usbnet           *dev;
+        enum skb_state          state;
+        size_t                  length;
+};
+
+
+
+/* messaging support includes the interface name, so it must not be
+ * used before it has one ... notably, in minidriver bind() calls.
+ */
+#ifdef DEBUG
+#define devdbg(usbnet, fmt, arg...) \
+        printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
+#else
+#define devdbg(usbnet, fmt, arg...) do {} while(0)
+#endif
+
+#define deverr(usbnet, fmt, arg...) \
+        printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
+#define devwarn(usbnet, fmt, arg...) \
+        printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
+
+#define devinfo(usbnet, fmt, arg...) \
+        printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \
+
+
+#endif  /* __USBNET_H */