xref: /freebsd/sys/dev/usb/net/usb_ethernet.h (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1 /* $FreeBSD$ */
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4  *
5  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _USB_ETHERNET_H_
32 #define	_USB_ETHERNET_H_
33 
34 #include "opt_inet.h"
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/sockio.h>
41 #include <sys/limits.h>
42 
43 #include <net/if.h>
44 #include <net/if_arp.h>
45 #include <net/if_dl.h>
46 #include <net/if_media.h>
47 #include <net/if_types.h>
48 #include <net/bpf.h>
49 #include <net/ethernet.h>
50 
51 struct mii_data;
52 struct usb_ether;
53 struct usb_device_request;
54 
55 typedef void (uether_fn_t)(struct usb_ether *);
56 
57 struct usb_ether_methods {
58 	uether_fn_t		*ue_attach_post;
59 	uether_fn_t		*ue_start;
60 	uether_fn_t		*ue_init;
61 	uether_fn_t		*ue_stop;
62 	uether_fn_t		*ue_setmulti;
63 	uether_fn_t		*ue_setpromisc;
64 	uether_fn_t		*ue_tick;
65 	int			(*ue_mii_upd)(struct ifnet *);
66 	void			(*ue_mii_sts)(struct ifnet *,
67 				    struct ifmediareq *);
68 	int			(*ue_ioctl)(struct ifnet *, u_long, caddr_t);
69 	int			(*ue_attach_post_sub)(struct usb_ether *);
70 };
71 
72 struct usb_ether_cfg_task {
73 	struct usb_proc_msg hdr;
74 	struct usb_ether *ue;
75 };
76 
77 struct usb_ether {
78 	/* NOTE: the "ue_ifp" pointer must be first --hps */
79 	struct ifnet		*ue_ifp;
80 	struct mtx		*ue_mtx;
81 	const struct usb_ether_methods *ue_methods;
82 	struct sysctl_oid	*ue_sysctl_oid;
83 	void			*ue_sc;
84 	struct usb_device	*ue_udev; /* used by uether_do_request() */
85 	device_t		ue_dev;
86 	device_t		ue_miibus;
87 
88 	struct usb_process	ue_tq;
89 	struct sysctl_ctx_list	ue_sysctl_ctx;
90 	struct mbufq		ue_rxq;
91 	struct usb_callout	ue_watchdog;
92 	struct usb_ether_cfg_task	ue_sync_task[2];
93 	struct usb_ether_cfg_task	ue_media_task[2];
94 	struct usb_ether_cfg_task	ue_multi_task[2];
95 	struct usb_ether_cfg_task	ue_promisc_task[2];
96 	struct usb_ether_cfg_task	ue_tick_task[2];
97 
98 	int			ue_unit;
99 
100 	/* ethernet address from eeprom */
101 	uint8_t			ue_eaddr[ETHER_ADDR_LEN];
102 };
103 
104 #define	uether_do_request(ue,req,data,timo) \
105     usbd_do_request_proc((ue)->ue_udev,&(ue)->ue_tq,req,data,0,NULL,timo)
106 
107 uint8_t		uether_pause(struct usb_ether *, unsigned int);
108 struct ifnet	*uether_getifp(struct usb_ether *);
109 struct mii_data *uether_getmii(struct usb_ether *);
110 void		*uether_getsc(struct usb_ether *);
111 int		uether_ifattach(struct usb_ether *);
112 void		uether_ifattach_wait(struct usb_ether *);
113 void		uether_ifdetach(struct usb_ether *);
114 int		uether_ifmedia_upd(struct ifnet *);
115 void		uether_init(void *);
116 int		uether_ioctl(struct ifnet *, u_long, caddr_t);
117 struct mbuf	*uether_newbuf(void);
118 int		uether_rxmbuf(struct usb_ether *, struct mbuf *,
119 		    unsigned int);
120 int		uether_rxbuf(struct usb_ether *,
121 		    struct usb_page_cache *,
122 		    unsigned int, unsigned int);
123 void		uether_rxflush(struct usb_ether *);
124 uint8_t		uether_is_gone(struct usb_ether *);
125 void		uether_start(struct ifnet *);
126 #endif					/* _USB_ETHERNET_H_ */
127