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38f295c1 KS |
1 | /* |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
1aad5ac2 | 7 | * @(#)if_ecreg.h 7.2 (Berkeley) %G% |
38f295c1 KS |
8 | */ |
9 | /* | |
10 | * Device definitions for the i82586 generally and the 3com ec507 | |
11 | * ISA bus ethernet controller. | |
12 | */ | |
13 | /* | |
14 | * Intermediate System Control Block pointer | |
15 | */ | |
16 | struct ec_iscp { | |
17 | u_short busy; | |
18 | u_short scb_off; | |
19 | caddr_t scb_base; | |
20 | }; | |
21 | /* | |
22 | * System Control Block | |
23 | */ | |
24 | struct ec_scb { | |
25 | u_short status; | |
26 | #define CX 0x8000 | |
27 | #define FR 0x4000 | |
28 | #define CNA 0x2000 | |
29 | #define RNR 0x1000 | |
30 | #define CU_STATE 0x700 | |
31 | #define CUS_IDLE 0x000 | |
32 | #define CUS_SUSPENDED 0x100 | |
33 | #define CUS_ACTIVE 0x200 | |
34 | #define RU_STATE 0x70 | |
35 | #define RUS_IDLE 0x00 | |
36 | #define RUS_SUSPENDED 0x10 | |
37 | #define RUS_OVERRUN 0x20 | |
38 | #define RUS_READY 0x40 | |
39 | u_short command; | |
40 | #define CU_NOP 0 | |
41 | #define CU_START 0x100 | |
42 | #define RU_NOP 0 | |
43 | #define RU_START 0x100 | |
44 | #define RU_ABORT 0x400 | |
45 | #define ACK_CX 0x8000 | |
46 | #define ACK_RX 0x4000 | |
47 | #define ACK_CNA 0x2000 | |
48 | #define ACK_RNR 0x1000 | |
49 | u_short cbl_off; | |
50 | u_short rfa_off; | |
51 | struct errors { | |
52 | u_short crc; | |
53 | u_short alignment; | |
54 | u_short resource; | |
55 | u_short overrun; | |
56 | } scb_errs; | |
57 | }; | |
58 | ||
59 | /* | |
60 | * Individual Address Setup | |
61 | */ | |
62 | struct ec_iasetup { | |
63 | u_short com0; | |
64 | #define COM0_A 0x1000 | |
65 | #define COM0_OK 0x2000 | |
66 | #define COM0_B 0x4000 | |
67 | #define COM0_C 0x8000 | |
68 | u_short com1; | |
69 | #define COM1_IASETUP 0x1 | |
70 | #define COM1_I 0x2000 | |
71 | #define COM1_S 0x4000 | |
72 | #define COM1_EL 0x8000 | |
73 | u_short next_off; | |
74 | u_char srcaddr[6]; | |
75 | }; | |
76 | ||
77 | /* | |
78 | * Load Multicast Addresses | |
79 | */ | |
80 | ||
81 | struct ec_mcsetup { | |
82 | u_short com0; | |
83 | u_short com1; | |
84 | #define COM1_MCSETUP 0x3 | |
85 | u_short next_off; | |
86 | u_short count; /* number of bytes, 14 bits only */ | |
87 | /* char mcaddrs[6]; /* white lie, data goes here */ | |
88 | }; | |
89 | ||
90 | /* | |
91 | * Transmit Command | |
92 | */ | |
93 | struct ec_transmit { | |
94 | u_short com0; | |
95 | #define COLLISIONS(p) (p->com0 & 0xf) | |
96 | #define EXCOL 0x10 /* Excessive Collisions, Aborted */ | |
97 | #define HEARTBEAT 0x20 /* CDT signal monitored and OK (good) */ | |
98 | #define TXDEFFERED 0x40 /* ``due to Previous Link Activity'' */ | |
99 | #define DMALATE 0x80 /* DMA underrun */ | |
100 | #define NOCTS 0x100 /* Transmission stopped due to ... */ | |
101 | #define NOCARSENSE 0x200 /* Loss of Carrier sense during TX */ | |
102 | #define LATECOLL 0x400 /* Late Collision detected */ | |
103 | #define TXERRS 0x7d0 /* Various Bad Things */ | |
104 | u_short com1; | |
105 | #define COM1_TRANSMIT 0x4 | |
106 | u_short next_off; | |
107 | u_short tbd_off; | |
108 | u_char dstaddr[6]; | |
109 | u_short proto; /* Length for 802.3 */ | |
110 | /* | |
111 | * }; struct ec_tba { | |
112 | * | |
113 | * Transmit Buffer Descriptor | |
114 | * This really should be a separate structure, | |
115 | * but it will be convenient to lump them together. | |
116 | */ | |
117 | u_short count; | |
118 | u_short next_tbd_off; | |
119 | caddr_t buffer; | |
120 | }; | |
121 | ||
122 | /* | |
123 | * Receive Frame Descriptor | |
124 | */ | |
125 | struct ec_rfd { | |
126 | u_short rfd0; | |
127 | u_short rfd1; | |
128 | u_short next_off; | |
129 | u_short rbd_off; | |
130 | struct ether_header eh; | |
131 | u_short mbz; | |
132 | /* | |
133 | * }; struct ec_rbd { | |
134 | * | |
135 | * Receive Buffer Descriptor | |
136 | */ | |
137 | u_short count; | |
138 | #define RBD_EOF 0x8000 | |
139 | #define RBD_F 0x4000 | |
140 | u_short next_rbd_off; | |
141 | caddr_t buffer; | |
142 | u_short size; | |
143 | u_short mbz2; | |
144 | }; | |
145 | ||
146 | /* | |
147 | * Set Operating Parameters | |
148 | */ | |
149 | struct ec_82586params { | |
150 | u_char count; | |
151 | u_char fifolimit; | |
152 | u_char save_bad_frames; | |
153 | u_char data1; /* addr len, no src ins, lpbk, prmble */ | |
1aad5ac2 | 154 | u_char priority; |
38f295c1 KS |
155 | u_char ifspacing; |
156 | u_char mbz1; | |
157 | u_char data2; /* max restries, slot time high */ | |
158 | u_char promisc; /* brddis, mnch/nrz, tnocr, crc16, bstf, pad */ | |
159 | #define M_PROMISC 1 | |
1aad5ac2 | 160 | #define M_TNOCR 8 |
38f295c1 KS |
161 | u_char cdf_cds; /* carrier detect/sense filter(length) & src */ |
162 | u_char min_frame_len; | |
163 | u_char mbz2[3]; | |
164 | }; | |
165 | ||
166 | struct ec_configure { | |
167 | u_short com0; | |
168 | u_short com1; | |
169 | #define COM1_CONFIGURE 0x2 | |
170 | u_short next_off; | |
171 | struct ec_82586params modes; | |
172 | }; | |
173 | #define ECMTU 1518 | |
174 | #define ECMINSIZE 64 | |
175 | #define NTXBUF 2 | |
176 | #define NRXBUF 8 | |
177 | ||
178 | struct ec_mem { | |
179 | struct ec_iscp iscp; | |
180 | struct ec_scb scb; | |
181 | struct ec_transmit tcom[NTXBUF]; | |
182 | struct ec_rfd rcom[NRXBUF]; | |
183 | struct ec_configure config; | |
184 | struct ec_iasetup iasetup; | |
185 | struct ec_mcsetup mcsetup; | |
186 | char txbuf[NTXBUF][ECMTU]; | |
187 | char rxbuf[NRXBUF][ECMTU]; | |
188 | }; | |
189 | ||
190 | struct ec_ports { | |
191 | u_char data[6]; | |
192 | u_char creg; | |
193 | #define R_ECID 0x00 | |
194 | #define R_ETHER 0x01 | |
195 | #define R_REV 0x02 | |
196 | #define R_IEN 0x04 | |
197 | #define R_INT 0x08 | |
198 | #define R_LAD 0x10 | |
199 | #define R_LPB 0x20 | |
200 | #define R_CA 0x40 | |
201 | #define R_NORST 0x80 | |
202 | u_char mbz0[3]; | |
203 | u_char port_ic; | |
204 | u_char port_ca; | |
205 | u_char mbz1; | |
206 | u_char rom_conf; | |
207 | u_char ram_conf; | |
208 | u_char int_conf; | |
209 | }; |