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  • /*
     * Copyright (c) 2011 The Chromium OS Authors.
     * See file CREDITS for list of people who contributed to this
     * project.
     *
     * 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 __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 */
    
    	/* private fields for each driver can go here if needed */
    
    #ifdef CONFIG_USB_ETHER_SMSC95XX
    	size_t rx_urb_size;  /* maximum USB URB size */
    	u32 mac_cr;  /* MAC control register value */
    	int have_hwaddr;  /* 1 if we have a hardware MAC address */
    #endif
    
    };
    
    /*
     * Function definitions for each USB ethernet driver go here, bracketed by
     * #ifdef CONFIG_USB_ETHER_xxx...#endif
     */
    
    #ifdef CONFIG_USB_ETHER_ASIX
    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);
    #endif
    
    #ifdef CONFIG_USB_ETHER_SMSC95XX
    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
    
    
    #endif /* __USB_ETHER_H__ */