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: src/sys/dev/sbni/if_sbnivar.h,v 1.1.2.3 2002/08/11 09:32:00 fjoe Exp $
28 * $DragonFly: src/sys/dev/netif/sbni/if_sbnivar.h,v 1.3 2004/09/15 00:39:53 joerg Exp $
29 */
30
31 /*
32 * SBNI12 definitions
33 */
34
35 #include <sys/ioccom.h>
36
37 /*
38 * CONFIGURATION PARAMETER:
39 *
40 * Uncomment this if you want to use model SBNI12D-11/ISA with same IRQ
41 * for both first and second channels.
42 */
43 #define SBNI_DUAL_COMPOUND 1
44
45 #define SBNI_DEBUG 0
46
47 #if SBNI_DEBUG
48 #define DP(A) A
49 #else
50 #define DP(A)
51 #endif
52
53 struct sbni_in_stats {
54 u_int32_t all_rx_number;
55 u_int32_t bad_rx_number;
56 u_int32_t timeout_number;
57 u_int32_t all_tx_number;
58 u_int32_t resend_tx_number;
59 };
60
61 struct sbni_flags {
62 u_int mac_addr : 24;
63 u_int rxl : 4;
64 u_int rate : 2;
65 u_int fixed_rxl : 1;
66 u_int fixed_rate : 1;
67 };
68
69
70 #ifdef _KERNEL /* to avoid compile this decls with sbniconfig */
71
72 struct sbni_softc {
73 struct arpcom arpcom; /* ethernet common */
74
75 int io_rid;
76 struct resource *io_res;
77 int io_off;
78
79 int irq_rid;
80 struct resource *irq_res;
81 void *irq_handle;
82
83 struct mbuf *rx_buf_p; /* receive buffer ptr */
84 struct mbuf *tx_buf_p; /* transmit buffer ptr */
85
86 u_int pktlen; /* length of transmitting pkt */
87 u_int framelen; /* current frame length */
88 u_int maxframe; /* maximum valid frame length */
89 u_int state;
90 u_int inppos; /* positions in rx/tx buffers */
91 u_int outpos; /* positions in rx/tx buffers */
92
93 /* transmitting frame number - from frames qty to 1 */
94 u_int tx_frameno;
95
96 /* expected number of next receiving frame */
97 u_int wait_frameno;
98
99 /* count of failed attempts to frame send - 32 attempts do before
100 error - while receiver tunes on opposite side of wire */
101 u_int trans_errors;
102
103 /* idle time; send pong when limit exceeded */
104 u_int timer_ticks;
105
106 /* fields used for receive level autoselection */
107 int delta_rxl;
108 u_int cur_rxl_index;
109 u_int timeout_rxl;
110 u_int32_t cur_rxl_rcvd;
111 u_int32_t prev_rxl_rcvd;
112
113 struct sbni_csr1 csr1; /* current value of CSR1 */
114 struct sbni_in_stats in_stats; /* internal statistics */
115
116 struct callout sbni_stat_timer;
117
118 struct sbni_softc *slave_sc;
119
120 #ifdef SBNI_DUAL_COMPOUND
121 struct sbni_softc *link;
122 #endif
123 };
124
125 void sbni_intr(void *);
126 int sbni_probe(struct sbni_softc *);
127 void sbni_attach(struct sbni_softc *, int, struct sbni_flags);
128
129 extern u_int32_t next_sbni_unit;
130
131 #ifdef SBNI_DUAL_COMPOUND
132 extern struct sbni_softc *sbni_headlist;
133
134 struct sbni_softc *connect_to_master(struct sbni_softc *);
135 #endif
136 #endif /* _KERNEL */
137
138 /*
139 * SBNI socket ioctl params
140 */
141 #define SIOCGHWFLAGS _IOWR('i', 62, struct ifreq) /* get flags */
142 #define SIOCSHWFLAGS _IOWR('i', 61, struct ifreq) /* set flags */
143 #define SIOCGINSTATS _IOWR('i', 60, struct ifreq) /* get internal stats */
144 #define SIOCRINSTATS _IOWR('i', 63, struct ifreq) /* reset internal stats */
145
146
147 /*
148 * CRC-32 stuff
149 */
150 #define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00ffffff))
151 /* CRC generator EDB88320 */
152 /* CRC remainder 2144DF1C */
153 /* CRC initial value 0 */
154 #define CRC32_REMAINDER 0x2144df1c
155 #define CRC32_INITIAL 0x00000000
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