mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
28c9fc68eb
remove the following two paragraphs as they are not needed: 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. Signed-off-by: Klaus Schwarzkopf <schwarzkopf@sensortherm.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
|
|
* u_ether.h -- interface to USB gadget "ethernet link" utilities
|
|
*
|
|
* Copyright (C) 2003-2005,2008 David Brownell
|
|
* Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
|
|
* Copyright (C) 2008 Nokia Corporation
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __U_ETHER_H
|
|
#define __U_ETHER_H
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/usb/composite.h>
|
|
#include <linux/usb/cdc.h>
|
|
|
|
#include "gadget_chips.h"
|
|
|
|
|
|
/*
|
|
* This represents the USB side of an "ethernet" link, managed by a USB
|
|
* function which provides control and (maybe) framing. Two functions
|
|
* in different configurations could share the same ethernet link/netdev,
|
|
* using different host interaction models.
|
|
*
|
|
* There is a current limitation that only one instance of this link may
|
|
* be present in any given configuration. When that's a problem, network
|
|
* layer facilities can be used to package multiple logical links on this
|
|
* single "physical" one.
|
|
*/
|
|
struct gether {
|
|
struct usb_function func;
|
|
|
|
/* updated by gether_{connect,disconnect} */
|
|
struct eth_dev *ioport;
|
|
|
|
/* endpoints handle full and/or high speeds */
|
|
struct usb_ep *in_ep;
|
|
struct usb_ep *out_ep;
|
|
|
|
bool is_zlp_ok;
|
|
|
|
u16 cdc_filter;
|
|
|
|
/* hooks for added framing, as needed for RNDIS and EEM. */
|
|
u32 header_len;
|
|
/* NCM requires fixed size bundles */
|
|
bool is_fixed;
|
|
u32 fixed_out_len;
|
|
u32 fixed_in_len;
|
|
struct sk_buff *(*wrap)(struct gether *port,
|
|
struct sk_buff *skb);
|
|
int (*unwrap)(struct gether *port,
|
|
struct sk_buff *skb,
|
|
struct sk_buff_head *list);
|
|
|
|
/* called on network open/close */
|
|
void (*open)(struct gether *);
|
|
void (*close)(struct gether *);
|
|
};
|
|
|
|
#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \
|
|
|USB_CDC_PACKET_TYPE_ALL_MULTICAST \
|
|
|USB_CDC_PACKET_TYPE_PROMISCUOUS \
|
|
|USB_CDC_PACKET_TYPE_DIRECTED)
|
|
|
|
|
|
/* netdev setup/teardown as directed by the gadget driver */
|
|
int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]);
|
|
void gether_cleanup(void);
|
|
|
|
/* connect/disconnect is handled by individual functions */
|
|
struct net_device *gether_connect(struct gether *);
|
|
void gether_disconnect(struct gether *);
|
|
|
|
/* Some controllers can't support CDC Ethernet (ECM) ... */
|
|
static inline bool can_support_ecm(struct usb_gadget *gadget)
|
|
{
|
|
if (!gadget_supports_altsettings(gadget))
|
|
return false;
|
|
|
|
/* Everything else is *presumably* fine ... but this is a bit
|
|
* chancy, so be **CERTAIN** there are no hardware issues with
|
|
* your controller. Add it above if it can't handle CDC.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
/* each configuration may bind one instance of an ethernet link */
|
|
int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
|
|
int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
|
|
int ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
|
|
int eem_bind_config(struct usb_configuration *c);
|
|
|
|
#ifdef USB_ETH_RNDIS
|
|
|
|
int rndis_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
|
|
|
|
#else
|
|
|
|
static inline int
|
|
rndis_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __U_ETHER_H */
|