xref: /freebsd/sys/dev/usb/net/usb_ethernet.h (revision 2008043f386721d58158e37e0d7e50df8095942d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifndef _USB_ETHERNET_H_
29 #define	_USB_ETHERNET_H_
30 
31 #include "opt_inet.h"
32 
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/mbuf.h>
36 #include <sys/socket.h>
37 #include <sys/sockio.h>
38 #include <sys/limits.h>
39 
40 #include <net/if.h>
41 #include <net/if_arp.h>
42 #include <net/if_dl.h>
43 #include <net/if_media.h>
44 #include <net/if_types.h>
45 #include <net/bpf.h>
46 #include <net/ethernet.h>
47 
48 struct mii_data;
49 struct usb_ether;
50 struct usb_device_request;
51 
52 typedef void (uether_fn_t)(struct usb_ether *);
53 
54 struct usb_ether_methods {
55 	uether_fn_t		*ue_attach_post;
56 	uether_fn_t		*ue_start;
57 	uether_fn_t		*ue_init;
58 	uether_fn_t		*ue_stop;
59 	uether_fn_t		*ue_setmulti;
60 	uether_fn_t		*ue_setpromisc;
61 	uether_fn_t		*ue_tick;
62 	int			(*ue_mii_upd)(if_t);
63 	void			(*ue_mii_sts)(if_t,
64 				    struct ifmediareq *);
65 	int			(*ue_ioctl)(if_t, u_long, caddr_t);
66 	int			(*ue_attach_post_sub)(struct usb_ether *);
67 };
68 
69 struct usb_ether_cfg_task {
70 	struct usb_proc_msg hdr;
71 	struct usb_ether *ue;
72 };
73 
74 struct usb_ether {
75 	/* NOTE: the "ue_ifp" pointer must be first --hps */
76 	if_t			ue_ifp;
77 	struct mtx		*ue_mtx;
78 	const struct usb_ether_methods *ue_methods;
79 	struct sysctl_oid	*ue_sysctl_oid;
80 	void			*ue_sc;
81 	struct usb_device	*ue_udev; /* used by uether_do_request() */
82 	device_t		ue_dev;
83 	device_t		ue_miibus;
84 
85 	struct usb_process	ue_tq;
86 	struct sysctl_ctx_list	ue_sysctl_ctx;
87 	struct mbufq		ue_rxq;
88 	struct usb_callout	ue_watchdog;
89 	struct usb_ether_cfg_task	ue_sync_task[2];
90 	struct usb_ether_cfg_task	ue_media_task[2];
91 	struct usb_ether_cfg_task	ue_multi_task[2];
92 	struct usb_ether_cfg_task	ue_promisc_task[2];
93 	struct usb_ether_cfg_task	ue_tick_task[2];
94 
95 	int			ue_unit;
96 
97 	/* ethernet address from eeprom */
98 	uint8_t			ue_eaddr[ETHER_ADDR_LEN];
99 };
100 
101 #define	uether_do_request(ue,req,data,timo) \
102     usbd_do_request_proc((ue)->ue_udev,&(ue)->ue_tq,req,data,0,NULL,timo)
103 
104 uint8_t		uether_pause(struct usb_ether *, unsigned int);
105 if_t		uether_getifp(struct usb_ether *);
106 struct mii_data *uether_getmii(struct usb_ether *);
107 void		*uether_getsc(struct usb_ether *);
108 int		uether_ifattach(struct usb_ether *);
109 void		uether_ifattach_wait(struct usb_ether *);
110 void		uether_ifdetach(struct usb_ether *);
111 int		uether_ifmedia_upd(if_t);
112 void		uether_init(void *);
113 int		uether_ioctl(if_t, u_long, caddr_t);
114 struct mbuf	*uether_newbuf(void);
115 int		uether_rxmbuf(struct usb_ether *, struct mbuf *,
116 		    unsigned);
117 int		uether_rxbuf(struct usb_ether *,
118 		    struct usb_page_cache *,
119 		    unsigned, unsigned);
120 void		uether_rxflush(struct usb_ether *);
121 uint8_t		uether_is_gone(struct usb_ether *);
122 void		uether_start(if_t);
123 #endif					/* _USB_ETHERNET_H_ */
124