text: /*
   * Copyright (c) 2011 The Chromium OS Authors.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #ifndef __USB_ETHER_H__
  #define __USB_ETHER_H__
  
  #include <net.h>
  
  /*
   *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
   *	and FCS/CRC (frame check sequence).
   */
  #define ETH_ALEN	6		/* Octets in one ethernet addr	 */
  #define ETH_HLEN	14		/* Total octets in header.	 */
  #define ETH_ZLEN	60		/* Min. octets in frame sans FCS */
  #define ETH_DATA_LEN	1500		/* Max. octets in payload	 */
  #define ETH_FRAME_LEN	PKTSIZE_ALIGN	/* Max. octets in frame sans FCS */
  #define ETH_FCS_LEN	4		/* Octets in the FCS		 */
  
  struct ueth_data {
  	/* eth info */
  	struct eth_device eth_dev;		/* used with eth_register */
  	int phy_id;						/* mii phy id */
  
  	/* usb info */
  	struct usb_device *pusb_dev;	/* this usb_device */
  	unsigned char	ifnum;			/* interface number */
  	unsigned char	ep_in;			/* in endpoint */
  	unsigned char	ep_out;			/* out ....... */
  	unsigned char	ep_int;			/* interrupt . */
  	unsigned char	subclass;		/* as in overview */
  	unsigned char	protocol;		/* .............. */
  	unsigned char	irqinterval;	/* Intervall for IRQ Pipe */
  
  	/* driver private */
  	void *dev_priv;
  };
  
  /*
   * Function definitions for each USB ethernet driver go here
   * (declaration is unconditional, compilation is conditional)
   */
  void asix_eth_before_probe(void);
  int asix_eth_probe(struct usb_device *dev, unsigned int ifnum,
  		      struct ueth_data *ss);
  int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
  		      struct eth_device *eth);
  
  void mcs7830_eth_before_probe(void);
  int mcs7830_eth_probe(struct usb_device *dev, unsigned int ifnum,
  		      struct ueth_data *ss);
  int mcs7830_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
  			 struct eth_device *eth);
  
  void smsc95xx_eth_before_probe(void);
  int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
  			struct ueth_data *ss);
  int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
  			struct eth_device *eth);
  
  #endif /* __USB_ETHER_H__ */
  