summaryrefslogtreecommitdiffstats
path: root/sys/dev/sbni/if_sbnivar.h
blob: 2d069c6db4d688854083ebcd00f5701f845a5cc6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*-
 * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
 * Author: Denis I.Timofeev <timofeev@granch.ru>
 *
 * Redistributon and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

/*
 * SBNI12 definitions
 */

/*
 * CONFIGURATION PARAMETER:
 *
 *	Uncomment this if you want to use model SBNI12D-11/ISA with same IRQ
 *	for both first and second channels.
 */
#define SBNI_DUAL_COMPOUND 1

#define SBNI_DEBUG 0

#if SBNI_DEBUG
#define DP(A) A
#else
#define DP(A)
#endif

struct sbni_in_stats {
	u_int32_t	all_rx_number;
	u_int32_t	bad_rx_number;
	u_int32_t	timeout_number;
	u_int32_t	all_tx_number;
	u_int32_t	resend_tx_number;
};

struct sbni_flags {
	u_int	mac_addr	: 24;
	u_int	rxl		: 4;
	u_int	rate		: 2;
	u_int	fixed_rxl	: 1;
	u_int	fixed_rate	: 1;
};


#ifdef _KERNEL	/* to avoid compile this decls with sbniconfig */

struct sbni_softc {
	struct	ifnet *ifp;
	device_t dev;
	u_char	enaddr[6];

	int	io_rid;
	struct	resource *io_res;
	int	io_off;

	int	irq_rid;
	struct	resource *irq_res;
	void	*irq_handle;

	struct	mbuf *rx_buf_p;		/* receive buffer ptr */
	struct	mbuf *tx_buf_p;		/* transmit buffer ptr */
	
	u_int	pktlen;			/* length of transmitting pkt */
	u_int	framelen;		/* current frame length */
	u_int	maxframe;		/* maximum valid frame length */
	u_int	state;
	u_int	inppos;			/* positions in rx/tx buffers */
	u_int	outpos;			/* positions in rx/tx buffers */

	/* transmitting frame number - from frames qty to 1 */
	u_int	tx_frameno;

	/* expected number of next receiving frame */
	u_int	wait_frameno;

	/* count of failed attempts to frame send - 32 attempts do before
	   error - while receiver tunes on opposite side of wire */
	u_int	trans_errors;

	/* idle time; send pong when limit exceeded */
	u_int	timer_ticks;

	/* fields used for receive level autoselection */
	int	delta_rxl;
	u_int	cur_rxl_index;
	u_int	timeout_rxl;
	u_int32_t	cur_rxl_rcvd;
	u_int32_t	prev_rxl_rcvd;

	struct	sbni_csr1 csr1;			/* current value of CSR1 */
	struct	sbni_in_stats in_stats; 	/* internal statistics */ 

	struct	callout wch;
	struct	mtx lock;

	struct	sbni_softc *slave_sc;

#ifdef SBNI_DUAL_COMPOUND
	struct	sbni_softc *link;
#endif
};

#define	SBNI_LOCK(sc)		mtx_lock(&(sc)->lock)
#define	SBNI_UNLOCK(sc)		mtx_unlock(&(sc)->lock)
#define	SBNI_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->lock, MA_OWNED)

void	sbni_intr(void *);
int	sbni_probe(struct sbni_softc *);
int	sbni_attach(struct sbni_softc *, int, struct sbni_flags);
void	sbni_detach(struct sbni_softc *);
void	sbni_release_resources(struct sbni_softc *);

extern u_int32_t next_sbni_unit;

#ifdef SBNI_DUAL_COMPOUND
void			sbni_add(struct sbni_softc *);
struct sbni_softc	*connect_to_master(struct sbni_softc *);
#endif
#endif	/* _KERNEL */

/*
 * SBNI socket ioctl params
 */
#define	SIOCGHWFLAGS	_IOWR('i', 62, struct ifreq)	/* get flags */
#define	SIOCSHWFLAGS	_IOWR('i', 61, struct ifreq)	/* set flags */
#define SIOCGINSTATS	_IOWR('i', 60, struct ifreq)	/* get internal stats */
#define SIOCRINSTATS	_IOWR('i', 63, struct ifreq)	/* reset internal stats */


/*
 * CRC-32 stuff
 */
#define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00ffffff))
      /* CRC generator EDB88320 */
      /* CRC remainder 2144DF1C */
      /* CRC initial value 0 */
#define CRC32_REMAINDER 0x2144df1c
#define CRC32_INITIAL 0x00000000
OpenPOWER on IntegriCloud