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[unix-history] / usr / src / sys / hp300 / dev / if_lereg.h
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1/*
2 * Copyright (c) 1982, 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 *
7 * @(#)if_lereg.h 7.1 (Berkeley) %G%
8 */
9
10#define LEID 21
11
12#define LEMTU 1518
13#define LEMINSIZE 60 /* should be 64 if mode DTCR is set */
14#define LERBUF 8
15#define LERBUFLOG2 3
16#define LE_RLEN (LERBUFLOG2 << 13)
17#define LETBUF 1
18#define LETBUFLOG2 0
19#define LE_TLEN (LETBUFLOG2 << 13)
20
21#define vu_char volatile u_char
22
23/*
24 * LANCE registers.
25 */
26struct lereg0 {
27 u_char ler0_pad0;
28 vu_char ler0_id; /* ID */
29 u_char ler0_pad1;
30 vu_char ler0_status; /* interrupt enable/status */
31};
32
33struct lereg1 {
34 u_short ler1_rdp; /* data port */
35 u_short ler1_rap; /* register select port */
36};
37
38/*
39 * Overlayed on 16K dual-port RAM.
40 * Current size is 13,758 bytes with 8 x 1518 receive buffers and
41 * 1 x 1518 transmit buffer.
42 */
43struct lereg2 {
44 /* init block */
45 u_short ler2_mode; /* +0x0000 */
46 u_char ler2_padr[6]; /* +0x0002 */
47 u_long ler2_ladrf0; /* +0x0008 */
48 u_long ler2_ladrf1; /* +0x000C */
49 u_short ler2_rdra; /* +0x0010 */
50 u_short ler2_rlen; /* +0x0012 */
51 u_short ler2_tdra; /* +0x0014 */
52 u_short ler2_tlen; /* +0x0016 */
53 /* receive message descriptors */
54 struct lermd { /* +0x0018 */
55 u_short rmd0;
56 u_short rmd1;
57 short rmd2;
58 u_short rmd3;
59 } ler2_rmd[LERBUF];
60 /* transmit message descriptors */
61 struct letmd { /* +0x0058 */
62 u_short tmd0;
63 u_short tmd1;
64 short tmd2;
65 u_short tmd3;
66 } ler2_tmd[LETBUF];
67 char ler2_rbuf[LERBUF][LEMTU]; /* +0x0060 */
68 char ler2_tbuf[LETBUF][LEMTU]; /* +0x2FD0 */
69};
70
71/*
72 * Control and status bits -- lereg0
73 */
74#define LE_IE 0x80 /* interrupt enable */
75#define LE_IR 0x40 /* interrupt requested */
76#define LE_LOCK 0x08 /* lock status register */
77#define LE_ACK 0x04 /* ack of lock */
78#define LE_JAB 0x02 /* loss of tx clock (???) */
79#define LE_IPL(x) ((((x) >> 4) & 0x3) + 3)
80
81/*
82 * Control and status bits -- lereg1
83 */
84#define LE_CSR0 0
85#define LE_CSR1 1
86#define LE_CSR2 2
87#define LE_CSR3 3
88
89#define LE_SERR 0x8000
90#define LE_BABL 0x4000
91#define LE_CERR 0x2000
92#define LE_MISS 0x1000
93#define LE_MERR 0x0800
94#define LE_RINT 0x0400
95#define LE_TINT 0x0200
96#define LE_IDON 0x0100
97#define LE_INTR 0x0080
98#define LE_INEA 0x0040
99#define LE_RXON 0x0020
100#define LE_TXON 0x0010
101#define LE_TDMD 0x0008
102#define LE_STOP 0x0004
103#define LE_STRT 0x0002
104#define LE_INIT 0x0001
105
106#define LE_BSWP 0x4
107#define LE_MODE 0x0
108
109/*
110 * Control and status bits -- lereg2
111 */
112#define LE_OWN 0x8000
113#define LE_ERR 0x4000
114#define LE_STP 0x0200
115#define LE_ENP 0x0100
116
117#define LE_FRAM 0x2000
118#define LE_OFLO 0x1000
119#define LE_CRC 0x0800
120#define LE_RBUFF 0x0400
121#define LE_MORE 0x1000
122#define LE_ONE 0x0800
123#define LE_DEF 0x0400
124#define LE_TBUFF 0x8000
125#define LE_UFLO 0x4000
126#define LE_LCOL 0x1000
127#define LE_LCAR 0x0800
128#define LE_RTRY 0x0400