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1.1 root 1: /*-
2: * Copyright (c) 1991 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Tim L. Tucker.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)if_wereg.h 7.1 (Berkeley) 5/9/91
37: */
38:
39: /*
40: * Western Digital 8003 ethernet/starlan adapter
41: */
42:
43: /*
44: * Memory Select Register (MSR)
45: */
46: union we_mem_sel {
47: struct memory_decode {
48: u_char msd_addr:6, /* Memory decode bits */
49: msd_enable:1, /* Memory (RAM) enable */
50: msd_reset:1; /* Software reset */
51: } msd_decode;
52: #define ms_addr msd_decode.msd_addr
53: #define ms_enable msd_decode.msd_enable
54: #define ms_reset msd_decode.msd_reset
55: u_char ms_byte; /* entire byte */
56: };
57:
58: /*
59: * receive ring discriptor
60: *
61: * The National Semiconductor DS8390 Network interface controller uses
62: * the following receive ring headers. The way this works is that the
63: * memory on the interface card is chopped up into 256 bytes blocks.
64: * A contiguous portion of those blocks are marked for receive packets
65: * by setting start and end block #'s in the NIC. For each packet that
66: * is put into the receive ring, one of these headers (4 bytes each) is
67: * tacked onto the front.
68: */
69: struct we_ring {
70: struct wer_status { /* received packet status */
71: u_char rs_prx:1, /* packet received intack */
72: rs_crc:1, /* crc error */
73: rs_fae:1, /* frame alignment error */
74: rs_fo:1, /* fifo overrun */
75: rs_mpa:1, /* packet received intack */
76: rs_phy:1, /* packet received intack */
77: rs_dis:1, /* packet received intack */
78: rs_dfr:1; /* packet received intack */
79: } we_rcv_status; /* received packet status */
80: u_char we_next_packet; /* pointer to next packet */
81: u_short we_count; /* bytes in packet (length + 4) */
82: };
83:
84: /*
85: * Command word definition
86: */
87: union we_command {
88: struct command_decode {
89: u_char csd_stp:1, /* STOP! */
90: csd_sta:1, /* START! */
91: csd_txp:1, /* Transmit packet */
92: csd_rd:3, /* Remote DMA command */
93: csd_ps:2; /* Page select */
94: } csd_decode;
95: #define cs_stp csd_decode.csd_stp
96: #define cs_sta csd_decode.csd_sta
97: #define cs_txp csd_decode.csd_txp
98: #define cs_rd csd_decode.csd_rd
99: #define cs_ps csd_decode.csd_ps
100: u_char cs_byte; /* entire command byte */
101: };
102:
103: /*
104: * Interrupt status definition
105: */
106: union we_interrupt {
107: struct interrupt_decode {
108: u_char isd_prx:1, /* Packet received */
109: isd_ptx:1, /* Packet transmitted */
110: isd_rxe:1, /* Receive error */
111: isd_txe:1, /* Transmit error */
112: isd_ovw:1, /* Overwrite warning */
113: isd_cnt:1, /* Counter overflow */
114: isd_rdc:1, /* Remote DMA complete */
115: isd_rst:1; /* Reset status */
116: } isd_decode;
117: #define is_prx isd_decode.isd_prx
118: #define is_ptx isd_decode.isd_ptx
119: #define is_rxe isd_decode.isd_rxe
120: #define is_txe isd_decode.isd_txe
121: #define is_ovw isd_decode.isd_ovw
122: #define is_cnt isd_decode.isd_cnt
123: #define is_rdc isd_decode.isd_rdc
124: #define is_rst isd_decode.isd_rst
125: u_char is_byte; /* entire interrupt byte */
126: };
127:
128: /*
129: * Status word definition (transmit)
130: */
131: union wet_status {
132: struct tstat {
133: u_char tsd_ptx:1, /* Packet transmitted intack */
134: tsd_dfr:1, /* Non deferred transmition */
135: tsd_col:1, /* Transmit Collided */
136: tsd_abt:1, /* Transmit Aborted (coll > 16) */
137: tsd_crs:1, /* Carrier Sense Lost */
138: tsd_fu:1, /* Fifo Underrun */
139: tsd_chd:1, /* CD Heartbeat */
140: tsd_owc:1; /* Out of Window Collision */
141: } tsd_decode;
142: #define ts_ptx tsd_decode.tsd_ptx
143: #define ts_dfr tsd_decode.tsd_dfr
144: #define ts_col tsd_decode.tsd_col
145: #define ts_abt tsd_decode.tsd_abt
146: #define ts_crs tsd_decode.tsd_crs
147: #define ts_fu tsd_decode.tsd_fu
148: #define ts_chd tsd_decode.tsd_chd
149: #define ts_owc tsd_decode.tsd_owc
150: u_char ts_byte; /* entire transmit byte */
151: };
152:
153: /*
154: * General constant definitions
155: */
156: #define WD_STARLAN 0x02 /* WD8003S Identification */
157: #define WD_ETHER 0x03 /* WD8003E Identification */
158: #define WD_ETHER2 0x05 /* WD8003EBT Identification */
159: #define WD_CHECKSUM 0xFF /* Checksum byte */
160: #define WD_PAGE_SIZE 256 /* Size of RAM pages in bytes */
161: #define WD_TXBUF_SIZE 6 /* Size of TX buffer in pages */
162: #define WD_ROM_OFFSET 8 /* i/o base offset to ROM */
163: #define WD_IO_PORTS 32 /* # of i/o addresses used */
164: #define WD_NIC_OFFSET 16 /* i/o base offset to NIC */
165:
166: /*
167: * Page register offset values
168: */
169: #define WD_P0_COMMAND 0x00 /* Command register */
170: #define WD_P0_PSTART 0x01 /* Page Start register */
171: #define WD_P0_PSTOP 0x02 /* Page Stop register */
172: #define WD_P0_BNRY 0x03 /* Boundary Pointer */
173: #define WD_P0_TSR 0x04 /* Transmit Status (read-only) */
174: #define WD_P0_TPSR WD_P0_TSR /* Transmit Page (write-only) */
175: #define WD_P0_TBCR0 0x05 /* Transmit Byte count, low WO */
176: #define WD_P0_TBCR1 0x06 /* Transmit Byte count, high WO */
177: #define WD_P0_ISR 0x07 /* Interrupt status register */
178: #define WD_P0_RBCR0 0x0A /* Remote byte count low WO */
179: #define WD_P0_RBCR1 0x0B /* Remote byte count high WO */
180: #define WD_P0_RSR 0x0C /* Receive status RO */
181: #define WD_P0_RCR WD_P0_RSR /* Receive configuration WO */
182: #define WD_P0_TCR 0x0D /* Transmit configuration WO */
183: #define WD_P0_DCR 0x0E /* Data configuration WO */
184: #define WD_P0_IMR 0x0F /* Interrupt masks WO */
185: #define WD_P1_COMMAND 0x00 /* Command register */
186: #define WD_P1_PAR0 0x01 /* Physical address register 0 */
187: #define WD_P1_PAR1 0x02 /* Physical address register 1 */
188: #define WD_P1_PAR2 0x03 /* Physical address register 2 */
189: #define WD_P1_PAR3 0x04 /* Physical address register 3 */
190: #define WD_P1_PAR4 0x05 /* Physical address register 4 */
191: #define WD_P1_PAR5 0x06 /* Physical address register 5 */
192: #define WD_P1_CURR 0x07 /* Current page (receive unit) */
193: #define WD_P1_MAR0 0x08 /* Multicast address register 0 */
194:
195: /*
196: * Configuration constants (receive unit)
197: */
198: #define WD_R_SEP 0x01 /* Save error packets */
199: #define WD_R_AR 0x02 /* Accept Runt packets */
200: #define WD_R_AB 0x04 /* Accept Broadcast packets */
201: #define WD_R_AM 0x08 /* Accept Multicast packets */
202: #define WD_R_PRO 0x10 /* Promiscuous physical */
203: #define WD_R_MON 0x20 /* Monitor mode */
204: #define WD_R_RES1 0x40 /* reserved... */
205: #define WD_R_RES2 0x80 /* reserved... */
206: #define WD_R_CONFIG (WD_R_AB)
207:
208: /*
209: * Configuration constants (transmit unit)
210: */
211: #define WD_T_CRC 0x01 /* Inhibit CRC */
212: #define WD_T_LB0 0x02 /* Encoded Loopback Control */
213: #define WD_T_LB1 0x04 /* Encoded Loopback Control */
214: #define WD_T_ATD 0x08 /* Auto Transmit Disable */
215: #define WD_T_OFST 0x10 /* Collision Offset Enable */
216: #define WD_T_RES1 0x20 /* reserved... */
217: #define WD_T_RES2 0x40 /* reserved... */
218: #define WD_T_RES3 0x80 /* reserved... */
219: #define WD_T_CONFIG (0)
220:
221: /*
222: * Configuration constants (data unit)
223: */
224: #define WD_D_WTS 0x01 /* Word Transfer Select */
225: #define WD_D_BOS 0x02 /* Byte Order Select */
226: #define WD_D_LAS 0x04 /* Long Address Select */
227: #define WD_D_BMS 0x08 /* Burst Mode Select */
228: #define WD_D_AR 0x10 /* Autoinitialize Remote */
229: #define WD_D_FT0 0x20 /* Fifo Threshold Select */
230: #define WD_D_FT1 0x40 /* Fifo Threshold Select */
231: #define WD_D_RES 0x80 /* reserved... */
232: #define WD_D_CONFIG (WD_D_FT1|WD_D_BMS)
233:
234: /*
235: * Configuration constants (interrupt mask register)
236: */
237: #define WD_I_PRXE 0x01 /* Packet received enable */
238: #define WD_I_PTXE 0x02 /* Packet transmitted enable */
239: #define WD_I_RXEE 0x04 /* Receive error enable */
240: #define WD_I_TXEE 0x08 /* Transmit error enable */
241: #define WD_I_OVWE 0x10 /* Overwrite warning enable */
242: #define WD_I_CNTE 0x20 /* Counter overflow enable */
243: #define WD_I_RDCE 0x40 /* Dma complete enable */
244: #define WD_I_RES 0x80 /* reserved... */
245: #define WD_I_CONFIG (WD_I_PRXE|WD_I_PTXE|WD_I_RXEE|WD_I_TXEE)
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