summaryrefslogtreecommitdiff
path: root/recipes/mii-diag/mii-diag-2.11/libmii.c
blob: 96f00605096e10637db5976a6fff9203e31ebe69 (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
/* libmii.c: MII diagnostic and setup library.

	Copyright 1997-2003 by Donald Becker.
	This version released under the Gnu General Public License,
	incorporated herein by reference.
	This source code may be distributed without modification using the
	existing notice.  Any modification to this source code must include a
	full notice as described in the GPL
	Contact the author for use under other terms.

	The author may be reached as becker@scyld.com, or C/O
	 Scyld Computing Corporation
	 914 Bay Ridge Road, Suite 220
	 Annapolis MD 21403

   References
	http://www.scyld.com/expert/NWay.html
	http://www.national.com/pf/DP/DP83840A.html
*/

static const char version_msg[] =
"libmii.c:v2.11 2/28/2005  Donald Becker (becker@scyld.com)\n"
" http://www.scyld.com/diag/index.html\n";

/* This library exports the following functions:
    IOADDR: A token passed to the mdio_read() function.
    PHY_ID: The MII transceiver address, passed uninterpreted to mdio_read().
*/
void show_mii_details(long ioaddr, int phy_id);
int monitor_mii(long ioaddr, int phy_id);

/* This library expects to be able to call the following functions: */
extern int mdio_read(long ioaddr, int phy_id, int mii_reg_num);

#include <unistd.h>
#include <stdio.h>
#include <time.h>
#include <sys/time.h>

#include <sys/types.h>
typedef u_int32_t u32;
typedef u_int16_t u16;
typedef u_int8_t u8;

static const char *media_names[] = {
	"10baseT", "10baseT-FD", "100baseTx", "100baseTx-FD", "100baseT4",
	"Flow-control", 0,
};

static void ns83843(long ioaddr, int phy_id);
static void qs6612(long ioaddr, int phy_id);
static void smsc83c180(long ioaddr, int phy_id);
static void tdk78q2120(long ioaddr, int phy_id);
static void davicom_dm9101(long ioaddr, int phy_id);
static void intel_i553(long ioaddr, int phy_id);
static void enablesemi(long ioaddr, int phy_id);
static void amd_pna(long ioaddr, int phy_id);
static void amd_tx(long ioaddr, int phy_id);
static void admtek(long ioaddr, int phy_id);
static void lu3x31(long ioaddr, int phy_id);
static void myson981(long ioaddr, int phy_id);
static void via_tahoe(long ioaddr, int phy_id);
static void via_vt6103(long ioaddr, int phy_id);
static void via_vt6105(long ioaddr, int phy_id);
static void intel(long ioaddr, int phy_id);

struct mii_partnum {
	const char *vendor;				/* Vendor name. */
	u16	 phy_id0;				/* Vendor ID (alternate ver. of ieee_oui[]) */
	u16	 phy_id1;				/* Vendor ID (alternate ver. of ieee_oui[]) */
	unsigned char ieee_oui[3];	/* IEEE-assigned organizationally unique ID */
	char flags;
	void (*(func))(long xcvr_if, int phy_id);/* Function to emit more info. */
} static oui_map[] = {
	{"Unknown transceiver type", 0x0000, 0x0000, {0,}, 0, NULL,},
	{"National Semiconductor 83840A", 0x2000, 0x5c01, {0,}, 0, NULL,},
	{"National Semiconductor 83843",  0x2000, 0x5c10, {0,}, 0, ns83843, },
	{"Level One LXT970", 0x7810, 0x0000, {0,}, 0, NULL, },
	{"Level One LXT971", 0x7810, 0x0001, {0,}, 0, NULL, },
	{"Level One LXT971A",0x7810, 0x0003, {0,}, 0, NULL, },
	{"Level One (unknown type)", 0, 0, {0x1e,0x04,0x00}, 0, NULL, },
	{"Davicom DM9101", 0x0181, 0xB800, {0,}, 0, davicom_dm9101, },
	{"Davicom (unknown type)", 0, 0, {0x00, 0x60, 0x6e}, 0, davicom_dm9101, },
	{"Quality Semiconductor QS6612", 0x0181, 0x4410, {0,}, 0, qs6612},
	{"Quality Semiconductor (unknown type)", 0,0, {0x00, 0x60, 0x51}, 0, NULL},
	{"SMSC 83c180", 0x0282, 0x1C51, {0}, 0, smsc83c180, },
	{"TDK Semi 78Q2120 rev. 2", 0x0300, 0xE542, {0,}, 0, tdk78q2120, },
	{"TDK Semi 78Q2120 rev. 3", 0x0300, 0xE543, {0,}, 0, tdk78q2120, },
	{"TDK Semi 78Q2120 rev. 11", 0x0300, 0xE54B, {0,}, 0, tdk78q2120, },
	{"TDK transceiver (unknown type)", 0,0, {0x00, 0xc0, 0x39}, 0, tdk78q2120},
	{"Intel (unknown type)", 0,0, {0x00, 0xf8, 0x00}, 0, intel_i553},
	{"Enable Semiconductor EL40-331", 0x0043, 0x7411, {0,}, 0, enablesemi},
	{"AMD 79c901A.1 HomePNA", 0x0000, 0x6B91, {0,}, 0, amd_pna},
	{"AMD 79c901A.2 HomePNA", 0x0000, 0x6B92, {0,}, 0, amd_pna},
	{"AMD 79c901A.3 HomePNA", 0x0000, 0x6B93, {0,}, 0, amd_pna},
	{"AMD 79c901A.3 10baseT", 0x0000, 0x6B71, {0,}, 0, amd_tx},
	{"AdHoc Technology AH101LF", 0x0022, 0x561B, {0,}, 0, tdk78q2120},
	{"Altimata Communications AC101LF", 0x0022, 0x5523, {0,}, 0, tdk78q2120},
	{"Altimata Comm (unknown type)", 0, 0, {0x00,0x10,0xA9}, 0, tdk78q2120},
	{"ASIX (unknown type)", 0, 0, {0x00,0xC0,0xB4}, 0, tdk78q2120},
	{"ADMtek AN983 Comet", 0x0022, 0x5410, {0,}, 0, admtek},
	{"ADMtek AN985 Comet", 0x0022, 0x5513, {0,}, 0, admtek},
	{"ADMtek (unknown type)", 0, 0, {0x00,0xe0,0x92}, 0, admtek},
	{"Lucent LU6612", 0x0180, 0x7641, {0,}, 0, qs6612},
	{"Lucent LU3X31", 0x0043, 0x7411, {0,}, 0, lu3x31},
	{"LSI Logic (Seeq) 80225", 0, 0, {0x00,0xA0,0x7D}, 0, NULL},
	{"Myson MTD981", 0x0302, 0xD000, {0,}, 0, myson981},
	{"Myson (unknown type)", 0, 0, {0x00,0xC0,0xB4,}, 0, myson981},
	{"Alta/Kendin Sundance", 0x0022, 0x1720, {0,}, 0, NULL},
	{"Alta/Kendin Sundance", 0, 0, {0x00,0x08,0x85}, 0, NULL},
	{"VIA Tahoe VT6103", 0x0101, 0x8f20, {0,}, 0, via_vt6103},
	{"VIA Tahoe VT6104", 0x0101, 0x8f30, {0,}, 0, via_tahoe},
	{"VIA Rhine VT6105", 0x0101, 0x8f22, {0,}, 0, via_vt6105},
	{"Intel 82557 series", 0x02a8, 0x0150, {0,}, 0, intel},
	{"Intel 82555 rev 1", 0x02a8, 0x0151, {0,}, 0, intel},
	{"Intel 82559 transceiver", 0x02a8, 0x0154, {0,}, 0, intel},
	{"Intel 82555 series transceiver", 0,0, {0x00,0xaa,0x00}, 0, intel},
	{0, },
};

static u16 mii_val[32];

void show_mii_details(long ioaddr, int phy_id)
{
	int mii_reg, i, vendor = 0;
	u16 bmcr, bmsr, new_bmsr;

	/* This may not be omitted from the output. */
	printf("%s", version_msg);
	printf(" MII PHY #%d transceiver registers:", phy_id);
	for (mii_reg = 0; mii_reg < 32; mii_reg++) {
		mii_val[mii_reg] = mdio_read(ioaddr, phy_id, mii_reg);
		printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n  " : "",
			   mii_val[mii_reg]);
	}
	printf(".\n");
	if (mii_val[0] == 0xffff) {
		printf("  No MII transceiver present!.\n");
		return;
	}
	bmcr = mii_val[0];
	bmsr = mii_val[1];
	printf(" Basic mode control register 0x%4.4x:", bmcr);
	if (bmcr & 0x1000)
		printf(" Auto-negotiation enabled.\n");
	else
		printf(" Auto-negotiation disabled!\n"
			   "   Speed fixed at 10%s mbps, %s-duplex.\n",
			   bmcr & 0x2000 ? "0" : "",
			   bmcr & 0x0100 ? "full":"half");
	if (bmcr & 0x8000)
		printf("  Transceiver currently being reset!\n");
	if (bmcr & 0x4000)
		printf("  Transceiver in loopback mode!\n");
	if (bmcr & 0x0800)
		printf("  Transceiver powered down!\n");
	if (bmcr & 0x0400)
		printf("  Transceiver isolated from the MII!\n");
	if (bmcr & 0x0200)
		printf("  Restarted auto-negotiation in progress!\n");
	if (bmcr & 0x0080)
		printf("  Internal Collision-Test enabled!\n");
	
	new_bmsr = mdio_read(ioaddr, phy_id, 1);
	printf(" Basic mode status register 0x%4.4x ... %4.4x.\n"
		   "   Link status: %sestablished.\n"
		   "   Capable of ",
		   bmsr, new_bmsr,
		   bmsr & 0x0004 ? "" :
		    (new_bmsr & 0x0004) ? "previously broken, but now re" : "not ");
	if (bmsr & 0xF800) {
		for (i = 15; i >= 11; i--)
			if (bmsr & (1<<i))
				printf(" %s", media_names[i-11]);
	} else
		printf("<Warning! No media capabilities>");

	printf(".\n"
		   "   %s to perform Auto-negotiation, negotiation %scomplete.\n",
		   bmsr & 0x0008 ? "Able" : "Unable",
		   bmsr & 0x0020 ? "" : "not ");

	if (bmsr & 0x0010)
		printf(" Remote fault detected!\n");
	if (bmsr & 0x0002)
		printf("   *** Link Jabber! ***\n");

	if (mii_val[2] ^ mii_val[3]) { 		/* Eliminate 0x0000 and 0xffff IDs. */
		unsigned char oui_0 = mii_val[2] >> 10;
		unsigned char oui_1 = mii_val[2] >> 2;
		unsigned char oui_2 = (mii_val[2] << 6) | (mii_val[3] >> 10);

		printf(" Vendor ID is %2.2x:%2.2x:%2.2x:--:--:--, model %d rev. %d.\n",
			   oui_0, oui_1, oui_2,
			   ((mii_val[3] >> 4) & 0x3f), mii_val[3] & 0x0f);
		for ( i = 0; oui_map[i].vendor; i++)
			/* We match either the Phy ID or the IEEE OUI. */
			if ((oui_map[i].phy_id0 == mii_val[2] &&
				 oui_map[i].phy_id1 == mii_val[3]) ||
				(oui_map[i].ieee_oui[0] == oui_0 &&
				 oui_map[i].ieee_oui[1] == oui_1 &&
				 oui_map[i].ieee_oui[2] == oui_2)) {
				printf("   Vendor/Part: %s.\n", oui_map[i].vendor);
				vendor = i;
				break;
			}
		if (oui_map[i].vendor == NULL)
			printf("   No specific information is known about this transceiver"
				   " type.\n");
	} else
		printf(" This transceiver has no vendor identification.\n");

	{
		int nway_advert = mii_val[4];
		int lkpar = mii_val[5];
		printf(" I'm advertising %4.4x:", nway_advert);
		for (i = 10; i >= 5; i--)
			if (nway_advert & (1<<i))
				printf(" %s", media_names[i-5]);
		printf("\n   Advertising %sadditional info pages.\n",
			   nway_advert & 0x8000 ? "" : "no ");
		if ((nway_advert & 31) == 1)
			printf("   IEEE 802.3 CSMA/CD protocol.\n");
		else
			printf("   Using an unknown (non 802.3) encapsulation.\n");
		printf(" Link partner capability is %4.4x:",
			   lkpar);
		for (i = 10; i >= 5; i--)
			if (lkpar & (1<<i))
				printf(" %s", media_names[i-5]);
		printf(".\n   Negotiation %s.\n",
			   lkpar & 0x4000 ? " completed" : "did not complete");
	}
	if (oui_map[vendor].func)
		oui_map[vendor].func(ioaddr, phy_id);

}

int monitor_mii(long ioaddr, int phy_id)
{
	int i, last_event = 0;
	unsigned short new_1, baseline_1 = mdio_read(ioaddr, phy_id, 1);
	struct timeval tv, sleepval;
	time_t cur_time;
	char timebuf[12];

	if (baseline_1 == 0xffff) {
		fprintf(stderr, "No MII transceiver present to monitor.\n");
		return -1;
	}

	gettimeofday(&tv, NULL);
	cur_time = tv.tv_sec;
	strftime(timebuf, sizeof(timebuf), "%H:%M:%S", localtime(&cur_time));

	printf("Monitoring the MII transceiver status.\n"
		   "%s.%03d  Baseline value of MII BMSR (basic mode status register)"
		   " is %4.4x.\n", timebuf, (int)tv.tv_usec/1000, baseline_1);
	while (1) {
		new_1 = mdio_read(ioaddr, phy_id, 1);
		if (new_1 == 0xffff) {
			fprintf(stderr, "The MII transceiver is no longer accessable!\n");
			return -1;
		}
		if (new_1 != baseline_1) {
			gettimeofday(&tv, NULL);
			cur_time = tv.tv_sec;
			strftime(timebuf, sizeof(timebuf), "%H:%M:%S",
					 localtime(&cur_time));
			printf("%s.%03d  MII BMSR now %4.4x: %4s link, NWay %s, "
				   "%3sJabber%s (%4.4x).\n",
				   timebuf, (int)tv.tv_usec/1000, new_1,
				   new_1 & 0x04 ? "Good" : "no",
				   new_1 & 0x20 ? "done" : "busy",
				   new_1 & 0x02 ? "" : "No ",
				   new_1 & 0x10 ? ", remote fault" : "",
				   mdio_read(ioaddr, phy_id, 5)
				   );
			if (!(baseline_1 & 0x20)  && (new_1 & 0x20)) {
				int lkpar = mdio_read(ioaddr, phy_id, 5);
				printf("   New link partner capability is %4.4x %4.4x:",
					   lkpar, mdio_read(ioaddr, phy_id, 6));
				switch (lkpar) {
				case 0x45e1: printf(" 10/100 switch w/ flow control"); break;
				case 0x41e1: printf(" 10/100 HD+FD switch"); break;
				case 0x40a1: printf(" 10/100 bridged repeater"); break;
				case 0x4081: printf(" 100baseTx repeater w/autonegotation");
					break;
				case 0x0081: printf(" 100baseTx (no autonegotation)"); break;
				case 0x4021: printf(" 10baseT repeater w/autonegotation");
					break;
				case 0x0021: printf(" 10baseT (no autonegotation)"); break;
				default:
					for (i = 9; i >= 5; i--)
						if (lkpar & (1<<i))
							printf(" %s", media_names[i-5]);
				}
				printf(".\n");
			}
			fflush(stdout);
			baseline_1 = new_1;
			last_event = 0;
		}
		sleepval.tv_sec = 0;
		sleepval.tv_usec = last_event++ > 30 ? 200000 : 1000;
		select(0, 0, 0, 0, &sleepval);			/* Or just sleep(1); */
	}
	printf("  Value of MII BMSR (basic mode status register) is %4.4x.\n",
		   mdio_read(ioaddr, phy_id, 1));
	return 0;
}

/* Emit transceiver-specific info. */

struct msg_tbl { int bitmask;  char *msg; };

static void msg_if_set(const int val, const struct msg_tbl msg_tbl[])
{
	int i;
	for (i = 0; msg_tbl[i].bitmask; i++)
		if (msg_tbl[i].bitmask & val)
			printf(" %s\n", msg_tbl[i].msg);
}

static void msg_if_set_fmt(const int val, const struct msg_tbl msg_tbl[],
						   const char *fmt)
{
	int i;
	for (i = 0; msg_tbl[i].bitmask; i++)
		if (msg_tbl[i].bitmask & val)
			printf(fmt, msg_tbl[i].msg);
}

static void qs6612(long ioaddr, int phy_id)
{
	printf("  QS6612 extra registers: Mode %4.4x.\n"
		   "    Interrupt source %4.4x, mask %4.4x.\n"
		   "    PHY control %4.4x.\n",
		   mii_val[17], mii_val[29], mii_val[30], mii_val[31]);
	return;
}

static void ns83843(long ioaddr, int phy_id)
{
	printf("  NatSemi 83843 extra registers:\n"
		   "    PHY status %4.4x\n"
		   "    %s link, %d Mb/sec %s duplex\n"
		   "    MII interrupts %sabled, %s pending.\n"
		   "    Events since last read\n"
		   "     Link disconnects %d\n"
		   "     False carriers %d\n"
		   "     Receive errors %d\n"
		   "    Link beat is currently %sstable\n",
		   mii_val[0x10],
		   mii_val[10] & 0x0001 ? "Valid" : "Invalid",
		   mii_val[10] & 0x0002 ? 10 : 100, 
		   mii_val[10] & 0x0004 ? "full" : "half", 
		   mii_val[0x11] & 0x0002 ? "en":"dis",
		   mii_val[0x10] & 0x0100 ? "interrupt": "none",
		   mii_val[0x13], mii_val[0x14], mii_val[0x15],
		   mii_val[0x16] & 0x0010 ? "UN" : "");
	return;
}
static void smsc83c180(long ioaddr, int phy_id)
{
	int mii_reg25 = mii_val[25];
	printf("  SMSC 83c180 extra registers:\n"
		   "    Auto-negotiation status 0x%4.4x.\n"
		   "      10baseT polarity is %s.\n"
		   "      PHY address is %d.\n"
		   "      Auto-negotiation %scomplete, 1%s0Mbps %s duplex.\n"
		   "    Rx symbol errors since last read %d.\n",
		   mii_reg25,
		   mii_reg25 & 0x2000 ? "normal" : "reversed",
		   (mii_reg25>>8) & 0x1F,
		   mii_reg25 & 0x0080 ? "did not " : "",
		   mii_reg25 & 0x0020 ? "0" : "",
		   mii_reg25 & 0x0040 ? "full" : "half",
		   mdio_read(ioaddr, phy_id, 26));
	return;
}

static const char *tdk_events[8] = {
	"Jabber", "Rx error", "Negotiation page received", "Link detection fault",
	"Link partner acknowledge", "Link status change", "Remote partner fault",
	"Auto-Negotiation complete"};

static const struct msg_tbl tdk_reg16[] = {
	{0x8000, " Transceiver is in repeater mode!"},
	{0x4000, " Interrupt pin set to active high."},
	{0x2000, " Reserved bit 12 is unexpectedly set."},
	{0x1000, " Transmit pins are internally disconnected."},
	{0x0800, " 10baseT signal quality test is disabled."},
	{0x0400, " 10baseT loopback mode."},
	{0, 0},
};

static void tdk78q2120(long ioaddr, int phy_id)
{
	int mii_reg16 = mii_val[16];
	int mii_reg17 = mii_val[17];
	int mii_reg18 = mii_val[18];
	int i;
	printf("  TDK format vendor-specific registers 16..18 are "
		   "0x%4.4x 0x%4.4x 0x%4.4x\n", mii_reg16, mii_reg17, mii_reg18);
	printf("      Link polarity is %s %s.\n"
		   "%s%s"
		   "      Auto-negotiation %s, 1%s0Mbps %s duplex.\n"
		   "      Rx link in %s state, PLL %s.\n",
		   mii_reg16 & 0x0020 ? "OVERRIDDEN to" : "detected as",
		   mii_reg16 & 0x0010 ? "reversed" : "normal",
		   mii_reg16 & 0x0002 ?
		   "     100baseTx Coding and scrambling is disabled!\n":"",
		   mii_reg16 & 0x0001 ? "     Rx_CLK power-save mode is enabled!\n":"",
		   mii_reg18 & 0x1000 ? "had no common media" : "complete",
		   mii_reg18 & 0x0400 ? "0" : "",
		   mii_reg18 & 0x0800 ? "full" : "half",
		   mii_reg18 & 0x0200 ? "pass" : "fail",
		   mii_reg18 & 0x0100 ? "slipped since last read" : "locked");

	msg_if_set(mii_reg16, tdk_reg16);
	if (mii_reg17 & 0x00ff) {
		printf("      Events since last read:");
		for (i = 0; i < 8; i++)
			if (mii_reg17 & (1 << i))
				printf("  %s", tdk_events[i]);
	} else
		printf("      No new link status events.");

	if (mii_reg17 & 0xff00) {
		printf("\n      Events that will raise an interrupt:");
		for (i = 0; i < 8; i++)
			if (mii_reg17 & (0x100 << i))
				printf("  %s", tdk_events[i]);
	}
	printf("\n");
	return;
}

static void davicom_dm9101(long ioaddr, int phy_id)
{
	printf("  Davicom vendor specific registers: 0x%4.4x 0x%4.4x 0x%4.4x.\n",
		   mii_val[16], mii_val[17], mii_val[18]);
}
static void intel_i553(long ioaddr, int phy_id)
{
	printf("  This transceiver is 100baseT4 only!  Register 16 is %4.4x.\n",
		   mii_val[16]);
}
/* http://www.enablesemi.com/cgi-bin/byteserve/Products/Docs/3VCardBus.pdf */
static void enablesemi(long ioaddr, int phy_id)
{
	printf("  Isolated %d times, %d false carrier events, %d Rx errors.\n",
		   mii_val[18], mii_val[19], mii_val[21]);
	printf("  Cable polarity is %s, 100Mb PLL is %slocked.\n",
		   mii_val[28]&0x8000 ? "reversed" : "normal",
		   mii_val[27]&0x2000 ? "" : "un");
}
/* The amd79c901 contains both PNA and 10/100 management registers.
   http://www.amd.com/products/npd/techdocs/22304.pdf
*/
static void amd_pna(long ioaddr, int phy_id)
{
	printf("  HomePNA transceiver in %s speed, %s power mode.\n",
		   mii_val[16] & 4 ? "high" : "low",
		   mii_val[16] & 2 ? "high" : "low");
	printf("  HomePNA noise level %d, peak power %d..\n",
		   mii_val[25] >> 8, mii_val[25] & 0xff);
}
static void amd_tx(long ioaddr, int phy_id)
{
	int mii_reg25 = mii_val[25];
	printf("  AMD vendor specific registers: 0x%4.4x 0x%4.4x 0x%4.4x.\n",
		   mii_val[16], mii_val[17], mii_val[18]);
	printf("  The link is %s in 10%s %s duplex mode, autonegotiation state "
		   "has%s changed.\n",
		   mii_reg25 & 8 ? "up" : "down",
		   mii_reg25 & 1 ? "0baseTx" : "baseT",
		   mii_reg25 & 4 ? "full" : "half",
		   mii_reg25 & 2 ? "" : " not");
}

static const struct msg_tbl admtek_reg21[] = {
	{0x4000, " Link test diabled: Ignoring lack of 10baseT link beat."},
	{0x2000, " Link forced up."},
	{0x1000, " Tx jabber check disabled."},
	{0x0080, " Transmitting 'Far End Fault'!"},
	{0x0040, " Rx error count full."},
	{0x0008, " Remote loop back enabled."},
	{0, 0},
};

static void admtek(long ioaddr, int phy_id)
{

	printf("  ADMtek vendor specific registers information:\n"
		   "   Cable length is approximately %d meters.\n"
		   "   The receiver has lost lock %d times since last check and "
		   "had %d error events.\n",
		   ((mii_val[20] & 0x00f0) >> 4)*10,
		   mii_val[23], mii_val[23]);
	msg_if_set(mii_val[21], admtek_reg21);
	tdk78q2120(ioaddr, phy_id);
}

static void lu3x31(long ioaddr, int phy_id)
{
	printf("  Lucent vendor specific registers 17: 0x%4.4x"
		   " 29: 0x%4.4x 30: 0x%4.4x 31: 0x%4.4x.\n",
		   mii_val[17], mii_val[29], mii_val[30], mii_val[31]);
}

static const struct msg_tbl myson_reg16[] = {
	{0x0080, " Far end fault enabled."},
	{0x0040, " Transformer ratio 1.25:1."},
	{0x0020, " Polarity correction diabled."},
	{0x0010, " Link is forced up regardless of link beat."},
	{0x0004, " Bypass Jabber check."},
	{0x0001, " 100baseFx mode selected."},
	{0, 0},
};

static void myson981(long ioaddr, int phy_id)
{
	int i, mii_reg17 = mii_val[17];

	printf("  Myson mtd981 extra registers: %4.4x %4.4x %4.4x %4.4x.\n",
		   mii_val[16], mii_val[17], mii_val[18], mii_val[19]);
	msg_if_set(mii_val[16] & 0xC800, tdk_reg16);
	msg_if_set(mii_val[16], myson_reg16);

	if (mii_reg17 & 0x00ff) {
		printf("      Events since last read:");
		for (i = 0; i < 8; i++)
			if (mii_reg17 & (1 << i))
				printf("  %s", tdk_events[i]);
	} else
		printf("      No new link status events.");
	if (mii_reg17 & 0xff00) {
		printf("\n      Events that will raise an interrupt:");
		for (i = 0; i < 8; i++)
			if (mii_reg17 & (0x100 << i))
				printf("  %s", tdk_events[i]);
	}
	printf("\n");

	return;
}

/* These are much like the TDK events in reversed order. */
static const struct msg_tbl via_reg17[] = {
	{0x0001, "Auto-Negotiation complete"},
	{0x0002, "Remote fault detected"},
	{0x0004, "Link failure detected"},
	{0x0008, "Bad Start Stream detected"},
	{0x0010, "Parallel detection fault"},
	{0x0020, "Extended negotiation page received"},
	{0x0040, "5B/4B code error detected"},
	{0x0080, "Jabber detected"},
	{0, 0},
};

static void via_tahoe(long ioaddr, int phy_id)
{
	int mii_reg16 = mii_val[16];
	int mii_reg17 = mii_val[17];
	int mii_reg18 = mii_val[18];

	printf("  VIA Tahoe extended registers: 16 %4.4x  #17 %4.4x  #18 %4.4x.\n",
		   mii_reg16, mii_reg17, mii_reg18);
	msg_if_set_fmt(mii_reg17, via_reg17, "   %s\n");
	printf("   Link %s 10%s Mbps %s duplex\n",
		   mii_reg18 & 0x2000 ? "up" : "down",
		   mii_reg18 & 0x0400 ? "0" : "",
		   mii_reg18 & 0x0800 ? "full" : "half");
}

/* Information from
   http://www.via.com.tw/en/datasheet/DS6103110.pdf
*/
   
static void via_vt6103(long ioaddr, int phy_id)
{
	printf("  VIA vt6103 error counts since the last check:\n"
		   "   The link has failed %d times.\n"
		   "   The receiver has lost lock %d times.\n"
		   "   There have been %d false carrier/SQE error.\n",
		   mii_val[21], mii_val[22], mii_val[23]);
}

/* Information from
   http://www.via.com.tw/en/Networking/DS6105LOM100.pdf
*/

static void via_vt6105(long ioaddr, int phy_id)
{
	printf("  VIA vt6105 PHY status:\n"
		   "   Duplex %s  speed %s\n",
		   mii_val[20] & 0x0001 ? "full" : "half",
		   mii_val[20] & 0x0002 ? "100" : "10");
}

/* Information from
   http://www.via.com.tw/en/Networking/DS6105LOM100.pdf
*/
static void intel(long ioaddr, int phy_id)
{
	printf("  Intel 8255* PHY #%d extended management registers:\n"
		   "    Error counts, cleared when read:\n"
		   "     False carriers %d\n"
		   "     Link disconnects %d\n"
		   "     Receive errors %d\n"
		   "     Rx symbol errors %d.\n"
		   "     Rx 10Mbps Early End-Of-Frame errors %d.\n"
		   "     Rx 100Mbps Early End-Of-Frame errors %d.\n"
		   "     Tx jabber errors %d.\n",
		   mii_val[18],
		   mii_val[19], mii_val[20], mii_val[21], mii_val[22], mii_val[23],
		   mii_val[24], mii_val[25]);
}


/*
 * Local variables:
 *  compile-command: "cc -O -Wall -c libmii.c"
 *  c-indent-level: 4
 *  c-basic-offset: 4
 *  tab-width: 4
 * End:
 */