if_sbnivar.h revision 147256 
1/*-
2 * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
3 * Author: Denis I.Timofeev <timofeev@granch.ru>
4 *
5 * Redistributon 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 unmodified, this list of conditions, and the following
10 *    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 NEIGENCE 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 * $FreeBSD: head/sys/dev/sbni/if_sbnivar.h 147256 2005-06-10 16:49:24Z brooks $
28 */
29
30/*
31 * SBNI12 definitions
32 */
33
34/*
35 * CONFIGURATION PARAMETER:
36 *
37 *	Uncomment this if you want to use model SBNI12D-11/ISA with same IRQ
38 *	for both first and second channels.
39 */
40#define SBNI_DUAL_COMPOUND 1
41
42#define SBNI_DEBUG 0
43
44#if SBNI_DEBUG
45#define DP(A) A
46#else
47#define DP(A)
48#endif
49
50struct sbni_in_stats {
51	u_int32_t	all_rx_number;
52	u_int32_t	bad_rx_number;
53	u_int32_t	timeout_number;
54	u_int32_t	all_tx_number;
55	u_int32_t	resend_tx_number;
56};
57
58struct sbni_flags {
59	u_int	mac_addr	: 24;
60	u_int	rxl		: 4;
61	u_int	rate		: 2;
62	u_int	fixed_rxl	: 1;
63	u_int	fixed_rate	: 1;
64};
65
66
67#ifdef _KERNEL	/* to avoid compile this decls with sbniconfig */
68
69struct sbni_softc {
70	struct	ifnet *ifp;
71	u_char	enaddr[6];
72
73	int	io_rid;
74	struct	resource *io_res;
75	int	io_off;
76
77	int	irq_rid;
78	struct	resource *irq_res;
79	void	*irq_handle;
80
81	struct	mbuf *rx_buf_p;		/* receive buffer ptr */
82	struct	mbuf *tx_buf_p;		/* transmit buffer ptr */
83
84	u_int	pktlen;			/* length of transmitting pkt */
85	u_int	framelen;		/* current frame length */
86	u_int	maxframe;		/* maximum valid frame length */
87	u_int	state;
88	u_int	inppos;			/* positions in rx/tx buffers */
89	u_int	outpos;			/* positions in rx/tx buffers */
90
91	/* transmitting frame number - from frames qty to 1 */
92	u_int	tx_frameno;
93
94	/* expected number of next receiving frame */
95	u_int	wait_frameno;
96
97	/* count of failed attempts to frame send - 32 attempts do before
98	   error - while receiver tunes on opposite side of wire */
99	u_int	trans_errors;
100
101	/* idle time; send pong when limit exceeded */
102	u_int	timer_ticks;
103
104	/* fields used for receive level autoselection */
105	int	delta_rxl;
106	u_int	cur_rxl_index;
107	u_int	timeout_rxl;
108	u_int32_t	cur_rxl_rcvd;
109	u_int32_t	prev_rxl_rcvd;
110
111	struct	sbni_csr1 csr1;			/* current value of CSR1 */
112	struct	sbni_in_stats in_stats; 	/* internal statistics */
113
114	struct	callout_handle wch;
115
116	struct	sbni_softc *slave_sc;
117
118#ifdef SBNI_DUAL_COMPOUND
119	struct	sbni_softc *link;
120#endif
121};
122
123void	sbni_intr(void *);
124int	sbni_probe(struct sbni_softc *);
125void	sbni_attach(struct sbni_softc *, int, struct sbni_flags);
126
127extern u_int32_t next_sbni_unit;
128
129#ifdef SBNI_DUAL_COMPOUND
130extern struct sbni_softc *sbni_headlist;
131
132struct sbni_softc	*connect_to_master(struct sbni_softc *);
133#endif
134#endif	/* _KERNEL */
135
136/*
137 * SBNI socket ioctl params
138 */
139#define	SIOCGHWFLAGS	_IOWR('i', 62, struct ifreq)	/* get flags */
140#define	SIOCSHWFLAGS	_IOWR('i', 61, struct ifreq)	/* set flags */
141#define SIOCGINSTATS	_IOWR('i', 60, struct ifreq)	/* get internal stats */
142#define SIOCRINSTATS	_IOWR('i', 63, struct ifreq)	/* reset internal stats */
143
144
145/*
146 * CRC-32 stuff
147 */
148#define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00ffffff))
149      /* CRC generator EDB88320 */
150      /* CRC remainder 2144DF1C */
151      /* CRC initial value 0 */
152#define CRC32_REMAINDER 0x2144df1c
153#define CRC32_INITIAL 0x00000000
154