xref: /freebsd/sys/dev/usb/net/usb_ethernet.h (revision 8d20be1e22095c27faf8fe8b2f0d089739cc742e)
1 /* $FreeBSD$ */
2 /*-
3  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _USB_ETHERNET_H_
30 #define	_USB_ETHERNET_H_
31 
32 #include "opt_inet.h"
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/mbuf.h>
37 #include <sys/socket.h>
38 #include <sys/sockio.h>
39 #include <sys/limits.h>
40 
41 #include <net/if.h>
42 #include <net/if_arp.h>
43 #include <net/if_dl.h>
44 #include <net/if_media.h>
45 #include <net/if_types.h>
46 #include <net/bpf.h>
47 #include <net/ethernet.h>
48 
49 #include "miibus_if.h"
50 
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
53 
54 struct usb_ether;
55 struct usb_device_request;
56 
57 typedef void (uether_fn_t)(struct usb_ether *);
58 
59 struct usb_ether_methods {
60 	uether_fn_t		*ue_attach_post;
61 	uether_fn_t		*ue_start;
62 	uether_fn_t		*ue_init;
63 	uether_fn_t		*ue_stop;
64 	uether_fn_t		*ue_setmulti;
65 	uether_fn_t		*ue_setpromisc;
66 	uether_fn_t		*ue_tick;
67 	int			(*ue_mii_upd)(struct ifnet *);
68 	void			(*ue_mii_sts)(struct ifnet *,
69 				    struct ifmediareq *);
70 	int			(*ue_ioctl)(struct ifnet *, u_long, caddr_t);
71 	int			(*ue_attach_post_sub)(struct usb_ether *);
72 };
73 
74 struct usb_ether_cfg_task {
75 	struct usb_proc_msg hdr;
76 	struct usb_ether *ue;
77 };
78 
79 struct usb_ether {
80 	/* NOTE: the "ue_ifp" pointer must be first --hps */
81 	struct ifnet		*ue_ifp;
82 	struct mtx		*ue_mtx;
83 	const struct usb_ether_methods *ue_methods;
84 	struct sysctl_oid	*ue_sysctl_oid;
85 	void			*ue_sc;
86 	struct usb_device	*ue_udev; /* used by uether_do_request() */
87 	device_t		ue_dev;
88 	device_t		ue_miibus;
89 
90 	struct usb_process	ue_tq;
91 	struct sysctl_ctx_list	ue_sysctl_ctx;
92 	struct ifqueue		ue_rxq;
93 	struct usb_callout	ue_watchdog;
94 	struct usb_ether_cfg_task	ue_sync_task[2];
95 	struct usb_ether_cfg_task	ue_media_task[2];
96 	struct usb_ether_cfg_task	ue_multi_task[2];
97 	struct usb_ether_cfg_task	ue_promisc_task[2];
98 	struct usb_ether_cfg_task	ue_tick_task[2];
99 
100 	int			ue_unit;
101 
102 	/* ethernet address from eeprom */
103 	uint8_t			ue_eaddr[ETHER_ADDR_LEN];
104 };
105 
106 #define	uether_do_request(ue,req,data,timo) \
107     usbd_do_request_proc((ue)->ue_udev,&(ue)->ue_tq,req,data,0,NULL,timo)
108 
109 uint8_t		uether_pause(struct usb_ether *, unsigned int);
110 struct ifnet	*uether_getifp(struct usb_ether *);
111 struct mii_data *uether_getmii(struct usb_ether *);
112 void		*uether_getsc(struct usb_ether *);
113 int		uether_ifattach(struct usb_ether *);
114 void		uether_ifdetach(struct usb_ether *);
115 int		uether_ifmedia_upd(struct ifnet *);
116 void		uether_init(void *);
117 int		uether_ioctl(struct ifnet *, u_long, caddr_t);
118 struct mbuf	*uether_newbuf(void);
119 int		uether_rxmbuf(struct usb_ether *, struct mbuf *,
120 		    unsigned int);
121 int		uether_rxbuf(struct usb_ether *,
122 		    struct usb_page_cache *,
123 		    unsigned int, unsigned int);
124 void		uether_rxflush(struct usb_ether *);
125 uint8_t		uether_is_gone(struct usb_ether *);
126 void		uether_start(struct ifnet *);
127 #endif					/* _USB_ETHERNET_H_ */
128