Add USB host ethernet adapter support
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>
diff --git a/include/usb_ether.h b/include/usb_ether.h
new file mode 100644
index 0000000..31cbc8d
--- /dev/null
+++ b/include/usb_ether.h
@@ -0,0 +1,61 @@
+/*
+ * 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__ */