summaryrefslogtreecommitdiffstats
path: root/sys/pci/if_mxreg.h
blob: c9b951e2b1dfb95bb74bffd8e740b36281b91d5a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
/*
 * Copyright (c) 1997, 1998
 *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Bill Paul.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 *	$Id: if_mxreg.h,v 1.17 1999/05/06 15:04:00 wpaul Exp $
 */

/*
 * Macronix register definitions.
 */

#define MX_BUSCTL		0x00	/* bus control */
#define MX_TXSTART		0x08	/* tx start demand */
#define MX_RXSTART		0x10	/* rx start demand */
#define MX_RXADDR		0x18	/* rx descriptor list start addr */
#define MX_TXADDR		0x20	/* tx descriptor list start addr */
#define MX_ISR			0x28	/* interrupt status register */
#define MX_NETCFG		0x30	/* network config register */
#define MX_IMR			0x38	/* interrupt mask */
#define MX_FRAMESDISCARDED	0x40	/* # of discarded frames */
#define MX_SIO			0x48	/* MII and ROM/EEPROM access */
#define MX_RESERVED		0x50
#define MX_TIMER		0x58	/* general timer */
#define MX_10BTSTAT		0x60
#define MX_SIARESET		0x68
#define MX_10BTCTRL		0x70
#define MX_WATCHDOG		0x78
#define MX_MAGICPACKET		0x80
#define MX_NWAYSTAT		0xA0

/*
 * These are magic values that must be written into CSR16
 * (MX_MAGICPACKET) in order to put the chip into proper
 * operating mode. The magic numbers are documented in the
 * Macronix 98715 application notes.
 */
#define MX_MAGIC_98713		0x0F370000
#define MX_MAGIC_98713A		0x0B3C0000
#define MX_MAGIC_98715		0x0B3C0000
#define MX_MAGIC_98725		0x0B3C0000

#define MX_REVISION_98713	0x00
#define MX_REVISION_98713A	0x10
#define MX_REVISION_98715	0x20
#define MX_REVISION_98725	0x30

/*
 * As far as the driver is concerned, there are two 'types' of
 * chips to be concerned with. One is a 98713 with an external
 * PHY on the MII. The other covers pretty much everything else,
 * since all the other Macronix chips have built-in transceivers.
 * This type setting governs what which mode selection routines
 * we use (MII or built-in). It also govers which of the 'magic'
 * numbers we write into CSR16.
 */
#define MX_TYPE_98713		0x1
#define MX_TYPE_98713A		0x2
#define MX_TYPE_987x5		0x3

/*
 * Bus control bits.
 */
#define MX_BUSCTL_RESET		0x00000001
#define MX_BUSCTL_ARBITRATION	0x00000002
#define MX_BUSCTL_SKIPLEN	0x0000007C
#define MX_BUSCTL_BUF_BIGENDIAN	0x00000080
#define MX_BUSCTL_BURSTLEN	0x00003F00
#define MX_BUSCTL_CACHEALIGN	0x0000C000
#define MX_BUSCTL_TXPOLL	0x000E0000
#define MX_BUSCTL_MUSTBEONE	0x04000000

#define MX_SKIPLEN_1LONG	0x00000004
#define MX_SKIPLEN_2LONG	0x00000008
#define MX_SKIPLEN_3LONG	0x00000010
#define MX_SKIPLEN_4LONG	0x00000020
#define MX_SKIPLEN_5LONG	0x00000040

#define MX_CACHEALIGN_NONE	0x00000000
#define MX_CACHEALIGN_8LONG	0x00004000
#define MX_CACHEALIGN_16LONG	0x00008000
#define MX_CACHEALIGN_32LONG	0x0000C000

#define MX_BURSTLEN_USECA	0x00000000
#define MX_BURSTLEN_1LONG	0x00000100
#define MX_BURSTLEN_2LONG	0x00000200
#define MX_BURSTLEN_4LONG	0x00000400
#define MX_BURSTLEN_8LONG	0x00000800
#define MX_BURSTLEN_16LONG	0x00001000
#define MX_BURSTLEN_32LONG	0x00002000

#define MX_TXPOLL_OFF		0x00000000
#define MX_TXPOLL_200U		0x00020000
#define MX_TXPOLL_800U		0x00040000
#define MX_TXPOLL_1600U		0x00060000

#define MX_BUSCTL_CONFIG	(MX_BUSCTL_ARBITRATION|MX_CACHEALIGN_8LONG| \
					MX_BURSTLEN_8LONG)

/*
 * Interrupt status bits.
 */
#define MX_ISR_TX_OK		0x00000001
#define MX_ISR_TX_IDLE		0x00000002
#define MX_ISR_TX_NOBUF		0x00000004
#define MX_ISR_TX_JABBERTIMEO	0x00000008
#define MX_ISR_LINKGOOD		0x00000010
#define MX_ISR_TX_UNDERRUN	0x00000020
#define MX_ISR_RX_OK		0x00000040
#define MX_ISR_RX_NOBUF		0x00000080
#define MX_ISR_RX_READ		0x00000100
#define MX_ISR_RX_WATDOGTIMEO	0x00000200
#define MX_ISR_TX_EARLY		0x00000400
#define MX_ISR_TIMER_EXPIRED	0x00000800
#define MX_ISR_LINKFAIL		0x00001000
#define MX_ISR_BUS_ERR		0x00002000
#define MX_ISR_RX_EARLY		0x00004000
#define MX_ISR_ABNORMAL		0x00008000
#define MX_ISR_NORMAL		0x00010000
#define MX_ISR_RX_STATE		0x000E0000
#define MX_ISR_TX_STATE		0x00700000
#define MX_ISR_BUSERRTYPE	0x03800000
#define MX_ISR_100MBPSLINK	0x08000000
#define MX_ISR_MAGICKPACK	0x10000000

#define MX_RXSTATE_STOPPED	0x00000000	/* 000 - Stopped */
#define MX_RXSTATE_FETCH	0x00020000	/* 001 - Fetching descriptor */
#define MX_RXSTATE_ENDCHECK	0x00040000	/* 010 - check for rx end */
#define MX_RXSTATE_WAIT		0x00060000	/* 011 - waiting for packet */
#define MX_RXSTATE_SUSPEND	0x00080000	/* 100 - suspend rx */
#define MX_RXSTATE_CLOSE	0x000A0000	/* 101 - close tx desc */
#define MX_RXSTATE_FLUSH	0x000C0000	/* 110 - flush from FIFO */
#define MX_RXSTATE_DEQUEUE	0x000E0000	/* 111 - dequeue from FIFO */

#define MX_TXSTATE_RESET	0x00000000	/* 000 - reset */
#define MX_TXSTATE_FETCH	0x00100000	/* 001 - fetching descriptor */
#define MX_TXSTATE_WAITEND	0x00200000	/* 010 - wait for tx end */
#define MX_TXSTATE_READING	0x00300000	/* 011 - read and enqueue */
#define MX_TXSTATE_RSVD		0x00400000	/* 100 - reserved */
#define MX_TXSTATE_SETUP	0x00500000	/* 101 - setup packet */
#define MX_TXSTATE_SUSPEND	0x00600000	/* 110 - suspend tx */
#define MX_TXSTATE_CLOSE	0x00700000	/* 111 - close tx desc */

/*
 * Network config bits.
 */
#define MX_NETCFG_RX_HASHPERF	0x00000001
#define MX_NETCFG_RX_ON		0x00000002
#define MX_NETCFG_RX_HASHONLY	0x00000004
#define MX_NETCFG_RX_BADFRAMES	0x00000008
#define MX_NETCFG_RX_INVFILT	0x00000010
#define MX_NETCFG_BACKOFFCNT	0x00000020
#define MX_NETCFG_RX_PROMISC	0x00000040
#define MX_NETCFG_RX_ALLMULTI	0x00000080
#define MX_NETCFG_FULLDUPLEX	0x00000200
#define MX_NETCFG_LOOPBACK	0x00000C00
#define MX_NETCFG_FORCECOLL	0x00001000
#define MX_NETCFG_TX_ON		0x00002000
#define MX_NETCFG_TX_THRESH	0x0000C000
#define MX_NETCFG_TX_BACKOFF	0x00020000
#define MX_NETCFG_PORTSEL	0x00040000	/* 0 == 10, 1 == 100 */
#define MX_NETCFG_HEARTBEAT	0x00080000
#define MX_NETCFG_STORENFWD	0x00200000
#define MX_NETCFG_SPEEDSEL	0x00400000	/* 1 == 10, 0 == 100 */
#define MX_NETCFG_PCS		0x00800000
#define MX_NETCFG_SCRAMBLER	0x01000000
#define MX_NETCFG_NO_RXCRC	0x02000000

#define MX_OPMODE_NORM		0x00000000
#define MX_OPMODE_INTLOOP	0x00000400
#define MX_OPMODE_EXTLOOP	0x00000800

#define MX_TXTHRESH_72BYTES	0x00000000
#define MX_TXTHRESH_96BYTES	0x00004000
#define MX_TXTHRESH_128BYTES	0x00008000
#define MX_TXTHRESH_160BYTES	0x0000C000


/*
 * Interrupt mask bits.
 */
#define MX_IMR_TX_OK		0x00000001
#define MX_IMR_TX_IDLE		0x00000002
#define MX_IMR_TX_NOBUF		0x00000004
#define MX_IMR_TX_JABBERTIMEO	0x00000008
#define MX_IMR_LINKGOOD		0x00000010
#define MX_IMR_TX_UNDERRUN	0x00000020
#define MX_IMR_RX_OK		0x00000040
#define MX_IMR_RX_NOBUF		0x00000080
#define MX_IMR_RX_READ		0x00000100
#define MX_IMR_RX_WATDOGTIMEO	0x00000200
#define MX_IMR_TX_EARLY		0x00000400
#define MX_IMR_TIMER_EXPIRED	0x00000800
#define MX_IMR_LINKFAIL		0x00001000
#define MX_IMR_BUS_ERR		0x00002000
#define MX_IMR_RX_EARLY		0x00004000
#define MX_IMR_ABNORMAL		0x00008000
#define MX_IMR_NORMAL		0x00010000
#define MX_IMR_100MBPSLINK	0x08000000
#define MX_IMR_MAGICKPACK	0x10000000

#define MX_INTRS	\
	(MX_IMR_RX_OK|MX_IMR_TX_OK|MX_IMR_RX_NOBUF|MX_IMR_RX_WATDOGTIMEO|\
	MX_IMR_TX_NOBUF|MX_IMR_TX_UNDERRUN|MX_IMR_BUS_ERR|		\
	MX_IMR_ABNORMAL|MX_IMR_NORMAL/*|MX_IMR_TX_EARLY*/)
/*
 * Serial I/O (EEPROM/ROM) bits.
 */
#define MX_SIO_EE_CS		0x00000001	/* EEPROM chip select */
#define MX_SIO_EE_CLK		0x00000002	/* EEPROM clock */
#define MX_SIO_EE_DATAIN	0x00000004	/* EEPROM data output */
#define MX_SIO_EE_DATAOUT	0x00000008	/* EEPROM data input */
#define MX_SIO_ROMDATA4		0x00000010
#define MX_SIO_ROMDATA5		0x00000020
#define MX_SIO_ROMDATA6		0x00000040
#define MX_SIO_ROMDATA7		0x00000080
#define MX_SIO_EESEL		0x00000800
#define MX_SIO_ROMSEL		0x00001000
#define MX_SIO_ROMCTL_WRITE	0x00002000
#define MX_SIO_ROMCTL_READ	0x00004000
#define MX_SIO_MII_CLK		0x00010000	/* MDIO clock */
#define MX_SIO_MII_DATAOUT	0x00020000	/* MDIO data out */
#define MX_SIO_MII_DIR		0x00040000	/* MDIO dir */
#define MX_SIO_MII_DATAIN	0x00080000	/* MDIO data in */

#define MX_EECMD_WRITE		0x140
#define MX_EECMD_READ		0x180
#define MX_EECMD_ERASE		0x1c0

#define MX_EE_NODEADDR_OFFSET	0x70
#define MX_EE_NODEADDR		10

/*
 * General purpose timer register
 */
#define MX_TIMER_VALUE		0x0000FFFF
#define MX_TIMER_CONTINUUS	0x00010000

/*
 * 10baseT status register
 */
#define MX_TSTAT_LS100		0x00000002 /* link status of 100baseTX */
#define MX_TSTAT_LS10		0x00000004 /* link status of 10baseT */
#define MX_TSTAT_AUTOPOLARITY	0x00000008
#define MX_TSTAT_REMFAULT	0x00000800
#define MX_TSTAT_ANEGSTAT	0x00007000
#define MX_TSTAT_LP_CAN_NWAY	0x00008000 /* link partner supports NWAY */
#define MX_TSTAT_LPCODEWORD	0xFFFF0000 /* link partner's code word */

#define MX_ASTAT_DISABLE	0x00000000
#define MX_ASTAT_TXDISABLE	0x00001000
#define MX_ASTAT_ABDETECT	0x00002000
#define MX_ASTAT_ACKDETECT	0x00003000
#define MX_ASTAT_CMPACKDETECT	0x00004000
#define MX_ASTAT_AUTONEGCMP	0x00005000
#define MX_ASTAT_LINKCHECK	0x00006000

/*
 * PHY reset register
 */
#define MX_SIA_RESET_NWAY	0x00000001
#define MX_SIA_RESET_100TX	0x00000002

/*
 * 10baseT control register
 */
#define MX_TCTL_LOOPBACK	0x00000002
#define MX_TCTL_POWERDOWN	0x00000004
#define MX_TCTL_HALFDUPLEX	0x00000040
#define MX_TCTL_AUTONEGENBL	0x00000080
#define MX_TCTL_RX_SQUELCH	0x00000100
#define MX_TCTL_LINKTEST	0x00001000
#define MX_TCTL_100BTXHALF	0x00010000
#define MX_TCTL_100BTXFULL	0x00020000
#define MX_TCTL_100BT4		0x00040000

/*
 * Watchdog timer register
 */
#define MX_WDOG_JABBERDIS	0x00000001
#define MX_WDOG_HOSTUNJAB	0x00000002
#define MX_WDOG_JABBERCLK	0x00000004
#define MX_WDOG_RXWDOGDIS	0x00000010
#define MX_WDOG_RXWDOGCLK	0x00000020
#define MX_WDOG_MUSTBEZERO	0x00000100

/*
 * Magic packet register
 */
#define MX_MPACK_DISABLE	0x00400000

/*
 * NWAY status register.
 */
#define MX_NWAY_10BTHALF	0x08000000
#define MX_NWAY_10BTFULL	0x10000000
#define MX_NWAY_100BTHALF	0x20000000
#define MX_NWAY_100BTFULL	0x40000000
#define MX_NWAY_100BT4		0x80000000

/*
 * Size of a setup frame.
 */
#define MX_SFRAME_LEN		192

/*
 * Macronix TX/RX list structure.
 */

struct mx_desc {
	u_int32_t		mx_status;
	u_int32_t		mx_ctl;
	u_int32_t		mx_ptr1;
	u_int32_t		mx_ptr2;
};

#define mx_data		mx_ptr1
#define mx_next		mx_ptr2

#define MX_RXSTAT_FIFOOFLOW	0x00000001
#define MX_RXSTAT_CRCERR	0x00000002
#define MX_RXSTAT_DRIBBLE	0x00000004
#define MX_RXSTAT_WATCHDOG	0x00000010
#define MX_RXSTAT_FRAMETYPE	0x00000020	/* 0 == IEEE 802.3 */
#define MX_RXSTAT_COLLSEEN	0x00000040
#define MX_RXSTAT_GIANT		0x00000080
#define MX_RXSTAT_LASTFRAG	0x00000100
#define MX_RXSTAT_FIRSTFRAG	0x00000200
#define MX_RXSTAT_MULTICAST	0x00000400
#define MX_RXSTAT_RUNT		0x00000800
#define MX_RXSTAT_RXTYPE	0x00003000
#define MX_RXSTAT_RXERR		0x00008000
#define MX_RXSTAT_RXLEN		0x3FFF0000
#define MX_RXSTAT_OWN		0x80000000

#define MX_RXBYTES(x)		((x & MX_RXSTAT_RXLEN) >> 16)
#define MX_RXSTAT (MX_RXSTAT_FIRSTFRAG|MX_RXSTAT_LASTFRAG|MX_RXSTAT_OWN)

#define MX_RXCTL_BUFLEN1	0x00000FFF
#define MX_RXCTL_BUFLEN2	0x00FFF000
#define MX_RXCTL_RLINK		0x01000000
#define MX_RXCTL_RLAST		0x02000000

#define MX_TXSTAT_DEFER		0x00000001
#define MX_TXSTAT_UNDERRUN	0x00000002
#define MX_TXSTAT_LINKFAIl	0x00000003
#define MX_TXSTAT_COLLCNT	0x00000078
#define MX_TXSTAT_SQE		0x00000080
#define MX_TXSTAT_EXCESSCOLL	0x00000100
#define MX_TXSTAT_LATECOLL	0x00000200
#define MX_TXSTAT_NOCARRIER	0x00000400
#define MX_TXSTAT_CARRLOST	0x00000800
#define MX_TXSTAT_JABTIMEO	0x00004000
#define MX_TXSTAT_ERRSUM	0x00008000
#define MX_TXSTAT_OWN		0x80000000

#define MX_TXCTL_BUFLEN1	0x000007FF
#define MX_TXCTL_BUFLEN2	0x003FF800
#define MX_TXCTL_FILTTYPE0	0x00400000
#define MX_TXCTL_PAD		0x00800000
#define MX_TXCTL_TLINK		0x01000000
#define MX_TXCTL_TLAST		0x02000000
#define MX_TXCTL_NOCRC		0x04000000
#define MX_TXCTL_SETUP		0x08000000
#define MX_TXCTL_FILTTYPE1	0x10000000
#define MX_TXCTL_FIRSTFRAG	0x20000000
#define MX_TXCTL_LASTFRAG	0x40000000
#define MX_TXCTL_FINT		0x80000000

#define MX_FILTER_PERFECT	0x00000000
#define MX_FILTER_HASHPERF	0x00400000
#define MX_FILTER_INVERSE	0x10000000
#define MX_FILTER_HASHONLY	0x10400000

#define MX_MAXFRAGS		16
#define MX_RX_LIST_CNT		64
#define MX_TX_LIST_CNT		128
#define MX_MIN_FRAMELEN		60

/*
 * A tx 'super descriptor' is actually 16 regular descriptors
 * back to back.
 */
struct mx_txdesc {
	struct mx_desc		mx_frag[MX_MAXFRAGS];
};

#define MX_TXNEXT(x)	x->mx_ptr->mx_frag[x->mx_lastdesc].mx_next
#define MX_TXSTATUS(x)	x->mx_ptr->mx_frag[x->mx_lastdesc].mx_status
#define MX_TXCTL(x)	x->mx_ptr->mx_frag[x->mx_lastdesc].mx_ctl
#define MX_TXDATA(x)	x->mx_ptr->mx_frag[x->mx_lastdesc].mx_data

#define MX_TXOWN(x)	x->mx_ptr->mx_frag[0].mx_status

struct mx_list_data {
	struct mx_desc		mx_rx_list[MX_RX_LIST_CNT];
	struct mx_txdesc	mx_tx_list[MX_TX_LIST_CNT];
};

struct mx_chain {
	struct mx_txdesc	*mx_ptr;
	struct mbuf		*mx_mbuf;
	struct mx_chain		*mx_nextdesc;
	u_int8_t		mx_lastdesc;
};

struct mx_chain_onefrag {
	struct mx_desc		*mx_ptr;
	struct mbuf		*mx_mbuf;
	struct mx_chain_onefrag	*mx_nextdesc;
};

struct mx_chain_data {
	struct mx_desc		mx_sframe;
	u_int32_t		mx_sbuf[MX_SFRAME_LEN/sizeof(u_int32_t)];
	u_int8_t		mx_pad[MX_MIN_FRAMELEN];
	struct mx_chain_onefrag	mx_rx_chain[MX_RX_LIST_CNT];
	struct mx_chain		mx_tx_chain[MX_TX_LIST_CNT];

	struct mx_chain_onefrag	*mx_rx_head;

	struct mx_chain		*mx_tx_head;
	struct mx_chain		*mx_tx_tail;
	struct mx_chain		*mx_tx_free;
};

struct mx_type {
	u_int16_t		mx_vid;
	u_int16_t		mx_did;
	char			*mx_name;
};

struct mx_mii_frame {
	u_int8_t		mii_stdelim;
	u_int8_t		mii_opcode;
	u_int8_t		mii_phyaddr;
	u_int8_t		mii_regaddr;
	u_int8_t		mii_turnaround;
	u_int16_t		mii_data;
};

/*
 * MII constants
 */
#define MX_MII_STARTDELIM	0x01
#define MX_MII_READOP		0x02
#define MX_MII_WRITEOP		0x01
#define MX_MII_TURNAROUND	0x02

#define MX_FLAG_FORCEDELAY	1
#define MX_FLAG_SCHEDDELAY	2
#define MX_FLAG_DELAYTIMEO	3	

struct mx_softc {
	struct arpcom		arpcom;		/* interface info */
	struct ifmedia		ifmedia;	/* media info */
	bus_space_handle_t	mx_bhandle;	/* bus space handle */
	bus_space_tag_t		mx_btag;	/* bus space tag */
	struct mx_type		*mx_info;	/* Macronix adapter info */
	struct mx_type		*mx_pinfo;	/* phy info */
	u_int8_t		mx_unit;	/* interface number */
	u_int8_t		mx_type;
	u_int8_t		mx_phy_addr;	/* PHY address */
	u_int8_t		mx_tx_pend;	/* TX pending */
	u_int8_t		mx_want_auto;
	u_int8_t		mx_autoneg;
	u_int8_t		mx_cachesize;
	caddr_t			mx_ldata_ptr;
	struct mx_list_data	*mx_ldata;
	struct mx_chain_data	mx_cdata;
};

/*
 * register space access macros
 */
#define CSR_WRITE_4(sc, reg, val)	\
	bus_space_write_4(sc->mx_btag, sc->mx_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val)	\
	bus_space_write_2(sc->mx_btag, sc->mx_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val)	\
	bus_space_write_1(sc->mx_btag, sc->mx_bhandle, reg, val)

#define CSR_READ_4(sc, reg)		\
	bus_space_read_4(sc->mx_btag, sc->mx_bhandle, reg)
#define CSR_READ_2(sc, reg)		\
	bus_space_read_2(sc->mx_btag, sc->mx_bhandle, reg)
#define CSR_READ_1(sc, reg)		\
	bus_space_read_1(sc->mx_btag, sc->mx_bhandle, reg)

#define MX_TIMEOUT		1000

/*
 * General constants that are fun to know.
 *
 * Macronix PCI vendor ID
 */
#define	MX_VENDORID		0x10D9

/*
 * Macronix PMAC device IDs.
 */
#define MX_DEVICEID_98713	0x0512
#define MX_DEVICEID_987x5	0x0531

/*
 * Compex PCI vendor ID.
 */
#define CP_VENDORID		0x11F6

/*
 * Compex PMAC PCI device IDs.
 */
#define CP_DEVICEID_98713	0x9881

/*
 * Texas Instruments PHY identifiers
 */
#define TI_PHY_VENDORID		0x4000
#define TI_PHY_10BT		0x501F
#define TI_PHY_100VGPMI		0x502F

/*
 * These ID values are for the NS DP83840A 10/100 PHY
 */
#define NS_PHY_VENDORID		0x2000
#define NS_PHY_83840A		0x5C0F

/*
 * Level 1 10/100 PHY
 */
#define LEVEL1_PHY_VENDORID	0x7810
#define LEVEL1_PHY_LXT970	0x000F

/*
 * Intel 82555 10/100 PHY
 */
#define INTEL_PHY_VENDORID	0x0A28
#define INTEL_PHY_82555		0x015F

/*
 * SEEQ 80220 10/100 PHY
 */
#define SEEQ_PHY_VENDORID	0x0016
#define SEEQ_PHY_80220		0xF83F


/*
 * PCI low memory base and low I/O base register, and
 * other PCI registers.
 */

#define MX_PCI_VENDOR_ID	0x00
#define MX_PCI_DEVICE_ID	0x02
#define MX_PCI_COMMAND		0x04
#define MX_PCI_STATUS		0x06
#define MX_PCI_REVID		0x08
#define MX_PCI_CLASSCODE	0x09
#define MX_PCI_CACHELEN		0x0C
#define MX_PCI_LATENCY_TIMER	0x0D
#define MX_PCI_HEADER_TYPE	0x0E
#define MX_PCI_LOIO		0x10
#define MX_PCI_LOMEM		0x14
#define MX_PCI_BIOSROM		0x30
#define MX_PCI_INTLINE		0x3C
#define MX_PCI_INTPIN		0x3D
#define MX_PCI_MINGNT		0x3E
#define MX_PCI_MINLAT		0x0F
#define MX_PCI_RESETOPT		0x48
#define MX_PCI_EEPROM_DATA	0x4C

/* power management registers */
#define MX_PCI_CAPID		0x44 /* 8 bits */
#define MX_PCI_NEXTPTR		0x45 /* 8 bits */
#define MX_PCI_PWRMGMTCAP	0x46 /* 16 bits */
#define MX_PCI_PWRMGMTCTRL	0x48 /* 16 bits */

#define MX_PSTATE_MASK		0x0003
#define MX_PSTATE_D0		0x0000
#define MX_PSTATE_D1		0x0001
#define MX_PSTATE_D2		0x0002
#define MX_PSTATE_D3		0x0003
#define MX_PME_EN		0x0010
#define MX_PME_STATUS		0x8000

#define PHY_UNKNOWN		6

#define MX_PHYADDR_MIN		0x00
#define MX_PHYADDR_MAX		0x1F

#define PHY_BMCR		0x00
#define PHY_BMSR		0x01
#define PHY_VENID		0x02
#define PHY_DEVID		0x03
#define PHY_ANAR		0x04
#define PHY_LPAR		0x05
#define PHY_ANEXP		0x06

#define PHY_ANAR_NEXTPAGE	0x8000
#define PHY_ANAR_RSVD0		0x4000
#define PHY_ANAR_TLRFLT		0x2000
#define PHY_ANAR_RSVD1		0x1000
#define PHY_ANAR_RSVD2		0x0800
#define PHY_ANAR_RSVD3		0x0400
#define PHY_ANAR_100BT4		0x0200
#define PHY_ANAR_100BTXFULL	0x0100
#define PHY_ANAR_100BTXHALF	0x0080
#define PHY_ANAR_10BTFULL	0x0040
#define PHY_ANAR_10BTHALF	0x0020
#define PHY_ANAR_PROTO4		0x0010
#define PHY_ANAR_PROTO3		0x0008
#define PHY_ANAR_PROTO2		0x0004
#define PHY_ANAR_PROTO1		0x0002
#define PHY_ANAR_PROTO0		0x0001

/*
 * These are the register definitions for the PHY (physical layer
 * interface chip).
 */
/*
 * PHY BMCR Basic Mode Control Register
 */
#define PHY_BMCR_RESET			0x8000
#define PHY_BMCR_LOOPBK			0x4000
#define PHY_BMCR_SPEEDSEL		0x2000
#define PHY_BMCR_AUTONEGENBL		0x1000
#define PHY_BMCR_RSVD0			0x0800	/* write as zero */
#define PHY_BMCR_ISOLATE		0x0400
#define PHY_BMCR_AUTONEGRSTR		0x0200
#define PHY_BMCR_DUPLEX			0x0100
#define PHY_BMCR_COLLTEST		0x0080
#define PHY_BMCR_RSVD1			0x0040	/* write as zero, don't care */
#define PHY_BMCR_RSVD2			0x0020	/* write as zero, don't care */
#define PHY_BMCR_RSVD3			0x0010	/* write as zero, don't care */
#define PHY_BMCR_RSVD4			0x0008	/* write as zero, don't care */
#define PHY_BMCR_RSVD5			0x0004	/* write as zero, don't care */
#define PHY_BMCR_RSVD6			0x0002	/* write as zero, don't care */
#define PHY_BMCR_RSVD7			0x0001	/* write as zero, don't care */
/*
 * RESET: 1 == software reset, 0 == normal operation
 * Resets status and control registers to default values.
 * Relatches all hardware config values.
 *
 * LOOPBK: 1 == loopback operation enabled, 0 == normal operation
 *
 * SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
 * Link speed is selected byt his bit or if auto-negotiation if bit
 * 12 (AUTONEGENBL) is set (in which case the value of this register
 * is ignored).
 *
 * AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
 * Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
 * determine speed and mode. Should be cleared and then set if PHY configured
 * for no autoneg on startup.
 *
 * ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
 *
 * AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
 *
 * DUPLEX: 1 == full duplex mode, 0 == half duplex mode
 *
 * COLLTEST: 1 == collision test enabled, 0 == normal operation
 */

/* 
 * PHY, BMSR Basic Mode Status Register 
 */   
#define PHY_BMSR_100BT4			0x8000
#define PHY_BMSR_100BTXFULL		0x4000
#define PHY_BMSR_100BTXHALF		0x2000
#define PHY_BMSR_10BTFULL		0x1000
#define PHY_BMSR_10BTHALF		0x0800
#define PHY_BMSR_RSVD1			0x0400	/* write as zero, don't care */
#define PHY_BMSR_RSVD2			0x0200	/* write as zero, don't care */
#define PHY_BMSR_RSVD3			0x0100	/* write as zero, don't care */
#define PHY_BMSR_RSVD4			0x0080	/* write as zero, don't care */
#define PHY_BMSR_MFPRESUP		0x0040
#define PHY_BMSR_AUTONEGCOMP		0x0020
#define PHY_BMSR_REMFAULT		0x0010
#define PHY_BMSR_CANAUTONEG		0x0008
#define PHY_BMSR_LINKSTAT		0x0004
#define PHY_BMSR_JABBER			0x0002
#define PHY_BMSR_EXTENDED		0x0001

#ifdef __alpha__
#undef vtophys
#define vtophys(va)		(pmap_kextract(((vm_offset_t) (va))) \
					+ 1*1024*1024*1024)
#endif
OpenPOWER on IntegriCloud