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Diffstat (limited to 'drivers/staging/ccg/u_ether.h')
| -rw-r--r-- | drivers/staging/ccg/u_ether.h | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/drivers/staging/ccg/u_ether.h b/drivers/staging/ccg/u_ether.h deleted file mode 100644 index 6f4a1623d85..00000000000 --- a/drivers/staging/ccg/u_ether.h +++ /dev/null @@ -1,154 +0,0 @@ -/* - * 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) - -/* variant of gether_setup that allows customizing network device name */ -int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], - const char *netname); - -/* netdev setup/teardown as directed by the gadget driver */ -/* gether_setup - initialize one ethernet-over-usb link - * @g: gadget to associated with these links - * @ethaddr: NULL, or a buffer in which the ethernet address of the - * host side of the link is recorded - * Context: may sleep - * - * This sets up the single network link that may be exported by a - * gadget driver using this framework. The link layer addresses are - * set up using module parameters. - * - * Returns negative errno, or zero on success - */ -static inline int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) -{ - return gether_setup_name(g, ethaddr, "usb"); -} - -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_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer); - -#else - -static inline int -rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer) -{ - return 0; -} - -#endif - -/** - * rndis_bind_config - add RNDIS network link to a configuration - * @c: the configuration to support the network link - * @ethaddr: a buffer in which the ethernet address of the host side - * side of the link was recorded - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - * - * Caller must have called @gether_setup(). Caller is also responsible - * for calling @gether_cleanup() before module unload. - */ -static inline int rndis_bind_config(struct usb_configuration *c, - u8 ethaddr[ETH_ALEN]) -{ - return rndis_bind_config_vendor(c, ethaddr, 0, NULL); -} - - -#endif /* __U_ETHER_H */ |