322 lines
9.5 KiB
C
Executable File
322 lines
9.5 KiB
C
Executable File
/*
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* USB Networking Link Interface
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*
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* Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net>
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* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __SMSCUSBNET_H
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#define __SMSCUSBNET_H
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#ifndef DEBUG
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#define DEBUG
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#endif
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typedef unsigned char BOOLEAN;
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#define TRUE ((BOOLEAN)1)
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#define FALSE ((BOOLEAN)0)
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#define ID_REV_9500_CHIPID 0x9500
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#define ID_REV_9500A_CHIPID 0x9E00
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#define ID_REV_9512_CHIPID 0xEC00
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#define EXTRA_HEADER_LEN 8
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#define VLAN_DUMMY 0xFFFF
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enum{
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DEV_SMSC9500
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};
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#define RX_SKB_COPY
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enum{
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RX_FIXUP_VALID_SKB,
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RX_FIXUP_INVALID_SKB,
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RX_FIXUP_ERROR,
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};
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struct ExtraErrorCounter
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{
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u32 tx_epipe;
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u32 tx_eproto;
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u32 tx_etimeout;
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u32 tx_eilseq;
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u32 tx_eoverflow;
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u32 rx_epipe;
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u32 rx_eproto;
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u32 rx_etimeout;
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u32 rx_eilseq;
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u32 rx_eoverflow;
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};
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#define AUTOSUSPEND_DYNAMIC 0x01 //Suspend on s0, work for lan9500 and lan9500a
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#define AUTOSUSPEND_DYNAMIC_S3 0x02 //Suspend on s3, only for lan9500a
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#define AUTOSUSPEND_LINKDOWN 0x04 //Suspend when link is down
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#define AUTOSUSPEND_INTFDOWN 0x08 //Suspend when interface is down
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#define AUTOSUSPEND_DETACH 0x10 //Enable net detach
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enum{
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FEATURE_SUSPEND3,
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FEATURE_SMARTDETACH,
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FEATURE_NEWSTATIS_CNT,
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FEATURE_SEP_LEDS,
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FEATURE_WUFF_8,
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FEATURE_MDIX_MODE,
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FEATURE_EEE,
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FEATURE_MAX_NO
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};
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enum{
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EVENT_TX_HALT,
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EVENT_RX_HALT,
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EVENT_RX_MEMORY,
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EVENT_STS_SPLIT,
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EVENT_LINK_RESET,
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EVENT_SET_MULTICAST,
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EVENT_HAS_FRAME,
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EVENT_DEV_RECOVERY,
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EVENT_IDLE_CHECK,
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EVENT_IDLE_RESUME,
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EVENT_LINK_DOWN_DETACH,
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EVENT_LINK_UP,
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EVENT_LINK_DOWN,
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};
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/* interface from usbnet core to each USB networking link we handle */
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struct usbnet {
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/* housekeeping */
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struct usb_device *udev;
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struct usb_interface *uintf;
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struct driver_info *driver_info;
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wait_queue_head_t *wait;
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int StopSummitUrb;
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/* i/o info: pipes etc */
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unsigned in, out;
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struct usb_host_endpoint *status;
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unsigned maxpacket;
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struct timer_list delay;
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struct timer_list LinkPollingTimer;
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BOOLEAN StopLinkPolling;
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u16 idProduct; //Product id from device descriptor
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u16 idVendor; //Vendor id from device descriptor
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u32 linkDownSuspend; //1. auto-negotiation complete; 2. energy detection;
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u32 dynamicSuspend; //Enable dynamic suspend when there are no traffic
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u32 netDetach; //Enable net detach, only for LAN9500A
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/* protocol/interface state */
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struct net_device *net;
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struct net_device_stats stats;
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struct ExtraErrorCounter extra_error_cnts;
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int msg_enable;
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unsigned long data [5];
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u32 xid;
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u32 hard_mtu; /* count any extra framing */
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size_t rx_urb_size; /* size for rx urbs */
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struct mii_if_info mii;
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/* various kinds of pending driver work */
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struct sk_buff_head rxq;
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struct sk_buff_head txq;
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struct sk_buff_head tx_pending_q;
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struct sk_buff_head done;
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struct urb **rx_urb_pool; //idle urb pool
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unsigned int rx_urb_pool_head;
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unsigned int rx_urb_pool_tail;
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unsigned int rx_urb_pool_size;
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spinlock_t rx_urblist_lock;
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struct urb *tx_urb;
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struct urb *interrupt;
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void *interrupt_urb_buffer;
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struct tasklet_struct bh;
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struct work_struct kevent;
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struct work_struct myevent;
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struct workqueue_struct * MyWorkQueue;
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unsigned long flags;
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BOOLEAN intr_urb_delay_submit;
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int idleCount;
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int linkcheck;
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BOOLEAN pmLock;
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struct semaphore pm_mutex;
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int suspendFlag; //Flag indicates link down suspend and select suspend
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BOOLEAN netDetachDone;
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u32 chipID;
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u32 preRxFifoDroppedFrame; //Previous counter value
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int chipDependFeatures[FEATURE_MAX_NO]; //Flag for chip-depend feratures
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struct vlan_group *vlgrp; //vlan support
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int device_id; //DEV_SMSC9500
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int tx_hold_on_completion;
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};
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#define PM_IDLE_DELAY 3 //Time before auto-suspend
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enum{
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WAKEPHY_OFF,
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WAKEPHY_NEGO_COMPLETE,
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WAKEPHY_ENERGY
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};
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static inline struct usb_driver *driver_of(struct usb_interface *intf)
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{
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return to_usb_driver(intf->dev.driver);
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}
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/* interface from the device/framing level "minidriver" to core */
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struct driver_info {
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char *description;
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int flags;
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/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
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#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */
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#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */
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#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */
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#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */
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#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */
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#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */
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#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */
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/* init device ... can sleep, or cause probe() failure */
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int (*bind)(struct usbnet *, struct usb_interface *);
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/* cleanup device ... can sleep, but can't fail */
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void (*unbind)(struct usbnet *, struct usb_interface *);
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/* reset device ... can sleep */
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int (*reset)(struct usbnet *);
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/* see if peer is connected ... can sleep */
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int (*check_connect)(struct usbnet *);
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/* for status polling */
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void (*status)(struct usbnet *, struct urb *);
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/* Set max frame size*/
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int (*set_max_frame_size)(struct usbnet *, int size);
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/* link reset handling, called from defer_kevent */
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int (*link_reset)(struct usbnet *);
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/* fixup rx packet (strip framing) */
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int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);
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/*set multicast list */
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int (*rx_setmulticastlist) (struct usbnet *dev);
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/* fixup tx packet (add framing) */
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struct sk_buff *(*tx_fixup)(struct usbnet *dev,
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struct sk_buff *skb, int flags);
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/* for new devices, use the descriptor-reading code instead */
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int in; /* rx endpoint */
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int out; /* tx endpoint */
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unsigned long data; /* Misc driver specific data */
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};
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/* Minidrivers are just drivers using the "usbnet" core as a powerful
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* network-specific subroutine library ... that happens to do pretty
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* much everything except custom framing and chip-specific stuff.
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*/
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extern int smscusbnet_probe(struct usb_interface *, const struct usb_device_id *);
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extern void smscusbnet_disconnect(struct usb_interface *);
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extern void smscusbnet_linkpolling(unsigned long ptr);
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/* Drivers that reuse some of the standard USB CDC infrastructure
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* (notably, using multiple interfaces according to the the CDC
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* union descriptor) get some helper code.
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*/
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struct cdc_state {
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struct usb_cdc_header_desc *header;
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struct usb_cdc_union_desc *u;
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struct usb_cdc_ether_desc *ether;
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struct usb_interface *control;
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struct usb_interface *data;
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};
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extern int usbnet_generic_cdc_bind (struct usbnet *, struct usb_interface *);
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extern void usbnet_cdc_unbind (struct usbnet *, struct usb_interface *);
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/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */
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#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \
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|USB_CDC_PACKET_TYPE_ALL_MULTICAST \
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|USB_CDC_PACKET_TYPE_PROMISCUOUS \
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|USB_CDC_PACKET_TYPE_DIRECTED)
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/* we record the state for each of our queued skbs */
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enum skb_state {
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illegal = 0,
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tx_start, tx_done,
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rx_start, rx_done, rx_cleanup
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};
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struct skb_data { /* skb->cb is one of these */
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struct urb *urb;
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struct usbnet *dev;
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enum skb_state state;
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size_t length;
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size_t pkt_cnt;
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};
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extern int smscusbnet_IsOperationalMode(struct usbnet *);
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extern int smscusbnet_get_endpoints(struct usbnet *, struct usb_interface *);
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extern void smscusbnet_defer_kevent (struct usbnet *, int);
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extern void smscusbnet_defer_myevent (struct usbnet *, int);
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extern void smscusbnet_skb_return (struct usbnet *, struct sk_buff *);
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extern int summit_IntrUrb (struct usbnet *dev);
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extern u32 smscusbnet_get_msglevel (struct net_device *);
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extern void smscusbnet_set_msglevel (struct net_device *, u32);
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extern void smscusbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
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extern int smscusbnet_FreeQueue (struct usbnet *dev);
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
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extern int smscusbnet_stop (struct net_device *net);
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extern struct net_device_stats *smscusbnet_get_stats (struct net_device *net);
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extern int smscusbnet_open (struct net_device *net);
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extern int smscusbnet_start_xmit (struct sk_buff *skb, struct net_device *net);
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extern int smscusbnet_change_mtu (struct net_device *net, int new_mtu);
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extern void smscusbnet_tx_timeout (struct net_device *net);
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#endif
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/* messaging support includes the interface name, so it must not be
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* used before it has one ... notably, in minidriver bind() calls.
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*/
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#ifdef DEBUG
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#define devdbg(usbnet, fmt, arg...) \
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printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
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#else
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#define devdbg(usbnet, fmt, arg...) do {} while(0)
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#endif
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#define deverr(usbnet, fmt, arg...) \
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printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
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#define devwarn(usbnet, fmt, arg...) \
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printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
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#define devinfo(usbnet, fmt, arg...) \
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printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \
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#endif /* __smscusbnet_H */
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