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 * $FreeBSD$
28 */
29
30 /*
31 * We don't have registered vendor id yet...
32 */
33 #define SBNI_PCI_VENDOR 0x55
34 #define SBNI_PCI_DEVICE 0x9f
35
36 #define ISA_MODE 0x00
37 #define PCI_MODE 0x01
38
39 #define SBNI_PORTS 4
40
41 enum sbni_reg {
42 CSR0 = 0,
43 CSR1 = 1,
44 DAT = 2
45 };
46
47 /* CSR0 mapping */
48 enum {
49 BU_EMP = 0x02,
50 RC_CHK = 0x04,
51 CT_ZER = 0x08,
52 TR_REQ = 0x10,
53 TR_RDY = 0x20,
54 EN_INT = 0x40,
55 RC_RDY = 0x80
56 };
57
58
59 /* CSR1 mapping */
60 #define PR_RES 0x80
61
62 struct sbni_csr1 {
63 unsigned rxl : 5;
64 unsigned rate : 2;
65 unsigned : 1;
66 };
67
68
69
70 #define FRAME_ACK_MASK (u_int16_t)0x7000
71 #define FRAME_LEN_MASK (u_int16_t)0x03FF
72 #define FRAME_FIRST (u_int16_t)0x8000
73 #define FRAME_RETRY (u_int16_t)0x0800
74
75 #define FRAME_SENT_BAD (u_int16_t)0x4000
76 #define FRAME_SENT_OK (u_int16_t)0x3000
77
78
79 enum {
80 FL_WAIT_ACK = 1,
81 FL_NEED_RESEND = 2,
82 FL_PREV_OK = 4,
83 FL_SLOW_MODE = 8
84 };
85
86
87 enum {
88 DEFAULT_IOBASEADDR = 0x210,
89 DEFAULT_INTERRUPTNUMBER = 5,
90 DEFAULT_RATE = 0,
91 DEFAULT_FRAME_LEN = 1012
92 };
93
94 #define DEF_RXL_DELTA -1
95 #define DEF_RXL 0xf
96
97 #define SBNI_SIG 0x5a
98
99 #define SBNI_MIN_LEN (ETHER_MIN_LEN - 4)
100 #define SBNI_MAX_FRAME 1023
101
102 #define SBNI_HZ 18 /* ticks to wait for pong or packet */
103 /* sbni watchdog called SBNI_HZ times per sec. */
104
105 #define TR_ERROR_COUNT 32
106 #define CHANGE_LEVEL_START_TICKS 4
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