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1.1 root 1: /*
2: * Copyright (c) 1982, 1986 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution is only permitted until one year after the first shipment
6: * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
7: * binary forms are permitted provided that: (1) source distributions retain
8: * this entire copyright notice and comment, and (2) distributions including
9: * binaries display the following acknowledgement: This product includes
10: * software developed by the University of California, Berkeley and its
11: * contributors'' in the documentation or other materials provided with the
12: * distribution and in all advertising materials mentioning features or use
13: * of this software. Neither the name of the University nor the names of
14: * its contributors may be used to endorse or promote products derived from
15: * this software without specific prior written permission.
16: * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
17: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
18: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19: *
20: * @(#)if_ecreg.h 7.4 (Berkeley) 6/28/90
21: */
22:
23: /*
24: * 3Com Ethernet controller registers.
25: */
26: struct ecdevice {
27: short ec_rcr; /* Receive Control Register */
28: short ec_xcr; /* Transmit Control Register */
29: };
30:
31: /*
32: * Control and status bits -- rcr
33: */
34: #define EC_SPIE 0x8000 /* set parity interrupt enable */
35: #define EC_ASTEP 0x4000 /* increment address counter */
36: #define EC_AROM 0x2000 /* 1: Use address ROM, 0: use RAM */
37: #define EC_PE 0x2000 /* Parity error */
38: #define EC_AWCLK 0x1000 /* address write clock bit */
39: #define EC_PIE 0x1000 /* Parity interrupt enable (read) */
40: #define EC_ADATA 0x0f00 /* address/filtering */
41: #define EC_RDONE 0x0080 /* receive done */
42: #define EC_MDISAB 0x0080 /* memory disable */
43: #define EC_RINTEN 0x0040 /* receive interrupt enable */
44: #define EC_RCLR 0x0020 /* clear RDONE bit */
45: #define EC_RWBN 0x0010 /* submit buffer for receive */
46: #define EC_RBN 0x000f /* buffer number */
47:
48: #define EC_RBITS "\10\16PE\15PIE\10RDONE\7RINTEN"
49:
50: /*
51: * Control and status bits -- xcr
52: */
53: #define EC_JAM 0x8000 /* collision dectected */
54: #define EC_JINTEN 0x4000 /* collision interrupt enable */
55: #define EC_JCLR 0x2000 /* clear collision detect */
56: #define EC_UECLR 0x0100 /* reset controller */
57: #define EC_XDONE 0x0080 /* transmit done */
58: #define EC_XINTEN 0x0040 /* transmit interrupt enable */
59: #define EC_XCLR 0x0020 /* clear XDONE bit */
60: #define EC_XWBN 0x0010 /* submit buffer for transmit */
61: #define EC_XBN 0x000f /* buffer number */
62:
63: #define EC_XBITS "\10\20JAM\17JINTEN\10XDONE\7XINTEN"
64:
65: /*
66: * Useful combinations
67: */
68: #define EC_READ (0x600|EC_RINTEN|EC_RWBN)
69: #define EC_MULTI (0x700|EC_RINTEN|EC_RWBN)
70: #define EC_PROMISC (0x000|EC_RINTEN|EC_RWBN)
71: #define EC_WRITE (EC_JINTEN|EC_XINTEN|EC_XWBN)
72: #define EC_CLEAR (EC_JINTEN|EC_XINTEN|EC_JCLR)
73:
74: /*
75: * Buffer number definitions
76: */
77: #define ECTBF 0 /* Buffer for transmit */
78: #define ECRLBF 1 /* First buffer for receive */
79: #define ECRHBF 15 /* Last buffer for receive */
80:
81: #define ECRDOFF 528 /* Packet offset in read buffer */
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