include/usb_ether.h

   1 /*
   2  * Copyright (c) 2011 The Chromium OS Authors.
   3  * See file CREDITS for list of people who contributed to this
   4  * project.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21
  22 #ifndef __USB_ETHER_H__
  23 #define __USB_ETHER_H__
  24
  25 #include <net.h>
  26
  27 /*
  28  *      IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
  29  *      and FCS/CRC (frame check sequence).
  30  */
  31 #define ETH_ALEN        6               /* Octets in one ethernet addr   */
  32 #define ETH_HLEN        14              /* Total octets in header.       */
  33 #define ETH_ZLEN        60              /* Min. octets in frame sans FCS */
  34 #define ETH_DATA_LEN    1500            /* Max. octets in payload        */
  35 #define ETH_FRAME_LEN   PKTSIZE_ALIGN   /* Max. octets in frame sans FCS */
  36 #define ETH_FCS_LEN     4               /* Octets in the FCS             */
  37
  38 struct ueth_data {
  39         /* eth info */
  40         struct eth_device eth_dev;              /* used with eth_register */
  41         int phy_id;                                             /* mii phy id */
  42
  43         /* usb info */
  44         struct usb_device *pusb_dev;    /* this usb_device */
  45         unsigned char   ifnum;                  /* interface number */
  46         unsigned char   ep_in;                  /* in endpoint */
  47         unsigned char   ep_out;                 /* out ....... */
  48         unsigned char   ep_int;                 /* interrupt . */
  49         unsigned char   subclass;               /* as in overview */
  50         unsigned char   protocol;               /* .............. */
  51         unsigned char   irqinterval;    /* Intervall for IRQ Pipe */
  52
  53         /* private fields for each driver can go here if needed */
  54 };
  55
  56 /*
  57  * Function definitions for each USB ethernet driver go here, bracketed by
  58  * #ifdef CONFIG_USB_ETHER_xxx...#endif
  59  */
  60 #ifdef CONFIG_USB_ETHER_ASIX
  61 void asix_eth_before_probe(void);
  62 int asix_eth_probe(struct usb_device *dev, unsigned int ifnum,
  63                       struct ueth_data *ss);
  64 int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
  65                       struct eth_device *eth);
  66 #endif
  67
  68 #endif /* __USB_ETHER_H__ */