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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#ifndef __LINUX_USB_USBNET_H#define __LINUX_USB_USBNET_H
#include <linux/mii.h>#include <linux/netdevice.h>#include <linux/skbuff.h>#include <linux/types.h>#include <linux/usb.h>#include <linux/spinlock.h>
/* interface from usbnet core to each USB networking link we handle */struct usbnet { /* housekeeping */ struct usb_device *udev; struct usb_interface *intf; const struct driver_info *driver_info; const char *driver_name; void *driver_priv; wait_queue_head_t wait; struct mutex phy_mutex; unsigned char suspend_count; unsigned char pkt_cnt, pkt_err; unsigned short rx_qlen, tx_qlen; unsigned can_dma_sg:1;
/* i/o info: pipes etc */ unsigned in, out; struct usb_host_endpoint *status; unsigned maxpacket; struct timer_list delay; const char *padding_pkt;
/* protocol/interface state */ struct net_device *net; int msg_enable; unsigned long data[5]; u32 xid; u32 hard_mtu; /* count any extra framing */ size_t rx_urb_size; /* size for rx urbs */ struct mii_if_info mii; long rx_speed; /* If MII not used */ long tx_speed; /* If MII not used */# define SPEED_UNSET -1
/* various kinds of pending driver work */ struct sk_buff_head rxq; struct sk_buff_head txq; struct sk_buff_head done; struct sk_buff_head rxq_pause; struct urb *interrupt; unsigned interrupt_count; struct mutex interrupt_mutex; struct usb_anchor deferred; struct work_struct bh_work; spinlock_t bql_spinlock;
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# define EVENT_RX_PAUSED 5# define EVENT_DEV_ASLEEP 6# define EVENT_DEV_OPEN 7# define EVENT_DEVICE_REPORT_IDLE 8# define EVENT_NO_RUNTIME_PM 9# define EVENT_RX_KILL 10# define EVENT_LINK_CHANGE 11# define EVENT_SET_RX_MODE 12# define EVENT_NO_IP_ALIGN 13# define EVENT_LINK_CARRIER_ON 14/* This one is special, as it indicates that the device is going away * there are cyclic dependencies between tasklet, timer and bh * that must be broken */# define EVENT_UNPLUG 31};
static inline bool usbnet_going_away(struct usbnet *ubn){ return test_bit(EVENT_UNPLUG, &ubn->flags);}
static inline void usbnet_mark_going_away(struct usbnet *ubn){ set_bit(EVENT_UNPLUG, &ubn->flags);}
static inline struct usb_driver *driver_of(struct usb_interface *intf){ return to_usb_driver(intf->dev.driver);}
/* 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 */#define FLAG_WLAN 0x0080 /* use "wlan%d" names */#define FLAG_AVOID_UNLINK_URBS 0x0100 /* don't unlink urbs at usbnet_stop() */#define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */#define FLAG_WWAN 0x0400 /* use "wwan%d" names */
#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */
#define FLAG_POINTTOPOINT 0x1000 /* possibly use "usb%d" names */
/* * Indicates to usbnet, that USB driver accumulates multiple IP packets. * Affects statistic (counters) and short packet handling. */#define FLAG_MULTI_PACKET 0x2000#define FLAG_RX_ASSEMBLE 0x4000 /* rx packets may span >1 frames */#define FLAG_NOARP 0x8000 /* device can't do ARP */#define FLAG_NOMAXMTU 0x10000 /* allow max_mtu above hard_mtu */
/* 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 *);
/* stop device ... can sleep */ int (*stop)(struct usbnet *);
/* see if peer is connected ... can sleep */ int (*check_connect)(struct usbnet *);
/* (dis)activate runtime power management */ int (*manage_power)(struct usbnet *, int);
/* 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, gfp_t flags);
/* recover from timeout */ void (*recover)(struct usbnet *dev);
/* early initialization code, can sleep. This is for minidrivers * having 'subminidrivers' that need to do extra initialization * right after minidriver have initialized hardware. */ int (*early_init)(struct usbnet *dev);
/* called by minidriver when receiving indication */ void (*indication)(struct usbnet *dev, void *ind, int indlen);
/* rx mode change (device changes address list filtering) */ void (*set_rx_mode)(struct usbnet *dev);
/* for new devices, use the descriptor-reading code instead */ int in; /* rx endpoint */ int out; /* tx endpoint */
unsigned long data; /* Misc driver specific data */};
/* Minidrivers are just drivers using the "usbnet" core as a powerful * network-specific subroutine library ... that happens to do pretty * much everything except custom framing and chip-specific stuff. */extern int usbnet_probe(struct usb_interface *, const struct usb_device_id *);extern int usbnet_suspend(struct usb_interface *, pm_message_t);extern int usbnet_resume(struct usb_interface *);extern void usbnet_disconnect(struct usb_interface *);extern void usbnet_device_suggests_idle(struct usbnet *dev);
extern int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, void *data, u16 size);extern int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size);extern int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, void *data, u16 size);extern int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size);extern int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size);
/* Drivers that reuse some of the standard USB CDC infrastructure * (notably, using multiple interfaces according to the CDC * union descriptor) get some helper code. */struct cdc_state { struct usb_cdc_header_desc *header; struct usb_cdc_union_desc *u; struct usb_cdc_ether_desc *ether; struct usb_interface *control; struct usb_interface *data;};
extern void usbnet_cdc_update_filter(struct usbnet *dev);extern int usbnet_generic_cdc_bind(struct usbnet *, struct usb_interface *);extern int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf);extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *);extern void usbnet_cdc_unbind(struct usbnet *, struct usb_interface *);extern void usbnet_cdc_status(struct usbnet *, struct urb *);extern int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb);
/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \ |USB_CDC_PACKET_TYPE_ALL_MULTICAST \ |USB_CDC_PACKET_TYPE_PROMISCUOUS \ |USB_CDC_PACKET_TYPE_DIRECTED)
/* 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, unlink_start};
struct skb_data { /* skb->cb is one of these */ struct urb *urb; struct usbnet *dev; enum skb_state state; long length; unsigned long packets;};
/* Drivers that set FLAG_MULTI_PACKET must call this in their * tx_fixup method before returning an skb. */static inline voidusbnet_set_skb_tx_stats(struct sk_buff *skb, unsigned long packets, long bytes_delta){ struct skb_data *entry = (struct skb_data *) skb->cb;
entry->packets = packets; entry->length = bytes_delta;}
extern int usbnet_open(struct net_device *net);extern int usbnet_stop(struct net_device *net);extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb, struct net_device *net);extern void usbnet_tx_timeout(struct net_device *net, unsigned int txqueue);extern int usbnet_change_mtu(struct net_device *net, int new_mtu);
extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *);extern int usbnet_get_ethernet_addr(struct usbnet *, int);extern void usbnet_defer_kevent(struct usbnet *, int);extern void usbnet_skb_return(struct usbnet *, struct sk_buff *);extern void usbnet_unlink_rx_urbs(struct usbnet *);
extern void usbnet_pause_rx(struct usbnet *);extern void usbnet_resume_rx(struct usbnet *);extern void usbnet_purge_paused_rxq(struct usbnet *);
extern int usbnet_get_link_ksettings_mii(struct net_device *net, struct ethtool_link_ksettings *cmd);extern int usbnet_set_link_ksettings_mii(struct net_device *net, const struct ethtool_link_ksettings *cmd);extern int usbnet_get_link_ksettings_internal(struct net_device *net, struct ethtool_link_ksettings *cmd);extern u32 usbnet_get_link(struct net_device *net);extern u32 usbnet_get_msglevel(struct net_device *);extern void usbnet_set_msglevel(struct net_device *, u32);extern void usbnet_set_rx_mode(struct net_device *net);extern void usbnet_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);extern int usbnet_mii_ioctl(struct net_device *net, struct ifreq *rq, int cmd);extern int usbnet_nway_reset(struct net_device *net);
extern int usbnet_manage_power(struct usbnet *, int);extern void usbnet_link_change(struct usbnet *, bool, bool);
extern int usbnet_status_start(struct usbnet *dev, gfp_t mem_flags);extern void usbnet_status_stop(struct usbnet *dev);
extern void usbnet_update_max_qlen(struct usbnet *dev);
#endif /* __LINUX_USB_USBNET_H */