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Add USB host ethernet adapter support

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This adds support for using USB Ethernet dongles in host mode. This is just
the framework - drivers will come later. A new config option called
CONFIG_USB_HOST_ETHER can be defined in board config files to switch this
on.

The was originally written by NVIDIA and was cleaned up for release by the
Chromium authors.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2011-02-16 11:14:33 -08:00 • committed by Remy Bohmer
parent 96820a3587
commit 89d48367ed
9 changed files with 298 additions and 24 deletions
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61
include/usb_ether.h Normal file
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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 */
};
/*
* Function definitions for each USB ethernet driver go here, bracketed by
* #ifdef CONFIG_USB_ETHER_xxx...#endif
*/
#endif /* __USB_ETHER_H__ */