summaryrefslogtreecommitdiff
path: root/util/probe_superio/probe_superio.c
blob: 7ec3c81dc484be8642d879c79a823a0e3978b632 (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
/*
 * This file is part of the LinuxBIOS project.
 *
 * Copyright (C) 2006 Ronald Minnich <rminnich@gmail.com>
 * Copyright (C) 2006 coresystems GmbH <info@coresystems.de>
 * Copyright (C) 2007 Carl-Daniel Hailfinger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/io.h>

/* well, they really thought this through, eh? Family is 8 bits!!!! */
char *familyid[] = {
	[0xf1] = "pc8374 (winbond, was NS)"
};

/* eventually, if you care, break this out into a file. For now, I don't know 
  * if we need this. 
  */

unsigned char regval(unsigned short port, unsigned char reg) {
	outb(reg, port);
	return inb(port + 1);
}

void regwrite(unsigned short port, unsigned char reg, unsigned char val) {
	outb(reg, port);
	outb(val, port + 1);
}

void
dump_ns8374(unsigned short port) {
	printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
		regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
		regval(port, 0x24), regval(port, 0x26));
	printf("SMBUS at %02x\n", regval(port, 0x2a));
	/* check COM1. This is all we care about at present. */
	printf("COM 1 is Globally %s\n", regval(port, 0x26) & 8 ? "disabled" : "enabled");
	/* select com1 */
	regwrite(port, 0x07, 0x03);
	printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
	/* select gpio */
	regwrite(port, 0x07, 0x07);
	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));

}

void
dump_fintek(unsigned short port, unsigned int did) 
{
	switch(did) {
	case 0x0604:
		printf ("Fintek F71805\n");
		break;
	case 0x4103:
		printf ("Fintek F71872\n");
		break;
	default:
		printf ("Unknown Fintek SuperI/O: did=0x%04x\n", did);
		return;
	}

	printf("Flash write is %s.\n", regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
	printf("Flash control is 0x%04x.\n", regval(port, 0x28));
	printf("27=%02x\n", regval(port, 0x27));
	printf("29=%02x\n", regval(port, 0x29));
	printf("2a=%02x\n", regval(port, 0x2a));
	printf("2b=%02x\n", regval(port, 0x2b));

	/* select UART 1 */
	regwrite(port, 0x07, 0x01);
	printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");

	/* select UART 2 */
	regwrite(port, 0x07, 0x02);
	printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");

	/* select Parport */
	regwrite(port, 0x07, 0x03);
	printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("PARPORT base=%02x%02x, irq=%02x\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);

	/* select hw monitor */
	regwrite(port, 0x07, 0x04);
	printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("HW monitor base=%02x%02x, irq=%02x\n", 
		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);

	/* select gpio */
	regwrite(port, 0x07, 0x05);
	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
	printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n", 
		regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
		regval(port, 0xe3), regval(port, 0xe4), regval(port, 0xe5));
	printf("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n", 
		regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8), regval(port, 0xe9),
		regval(port, 0xf0), regval(port, 0xf1), regval(port, 0xf3), regval(port, 0xf4));
	printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n", 
		regval(port, 0xf5), regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));


}

/* End Of Table */
#define EOT -1
/* NO LDN needed */
#define NOLDN -2
/* Not Available */
#define NANA -3
/* Maximum Name Length */
#define MAXNAMELEN 20
/* Biggest LDN */
#define MAXLDN 0xa
/* biggestLDN + 0 + NOLDN + EOT */
#define LDNSIZE MAXLDN + 3
/* MAXimum NUMber of Indexes */
#define MAXNUMIDX 70
#define IDXSIZE MAXNUMIDX + 1

const static struct ite_registers {
	/* yes, superio_id should be unsigned, but EOT has to be negative */
	signed short superio_id;
	char name[MAXNAMELEN];
	struct ite_ldnidx {
		signed short ldn;
		signed short idx[IDXSIZE];
		signed short def[IDXSIZE];
	} ldn[LDNSIZE];
} ite_reg_table[] = {
	{0x8702, "IT8702", {
		{EOT}}},
	{0x8705, "IT8705 or IT8700", {
		{EOT}}},
	{0x8710, "IT8710", {
		{EOT}}},
	{0x8712, "IT8712", {
		{NOLDN,
			{0x07,0x20,0x21,0x22,0x23,0x24,0x2b,EOT},
			{NANA,0x87,0x12,0x08,0x00,0x00,0x00,EOT}},
		{0x0,
			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
			{0x00,0x03,0xf0,0x06,0x02,0x00,0x00,EOT}},
		{0x1,
			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,0xf3,EOT},
			{0x00,0x03,0xf8,0x04,0x00,0x50,0x00,0x7f,EOT}},
		{0x2,
			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,0xf3,EOT},
			{0x00,0x02,0xf8,0x03,0x00,0x50,0x00,0x7f,EOT}},
		{0x3,
			{0x30,0x60,0x61,0x62,0x63,0x70,0x74,0xf0,EOT},
			{0x00,0x03,0x78,0x07,0x78,0x07,0x03,0x03,EOT}},
		{0x4,
			{0x30,0x60,0x61,0x62,0x63,0x70,0xf0,0xf1,0xf2,0xf3,
			 0xf4,0xf5,0xf6,EOT},
			{0x00,0x02,0x90,0x02,0x30,0x09,0x00,0x00,0x00,0x00,
			 0x00,NANA,NANA,EOT}},
		{0x5,
			{0x30,0x60,0x61,0x62,0x63,0x70,0x71,0xf0,EOT},
			{0x01,0x00,0x60,0x00,0x64,0x01,0x02,0x00,EOT}},
		{0x6,
			{0x30,0x70,0x71,0xf0,EOT},
			{0x00,0x0c,0x02,0x00,EOT}},
		{0x7,
			{0x25,0x26,0x27,0x28,0x29,0x2a,0x2c,0x60,0x61,0x62,
			 0x63,0x64,0x65,0x70,0x71,0x72,0x73,0x74,0xb0,0xb1,
			 0xb2,0xb3,0xb4,0xb5,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,
			 0xc0,0xc1,0xc2,0xc3,0xc4,0xc8,0xc9,0xca,0xcb,0xcc,
			 0xe0,0xe1,0xe2,0xe3,0xe4,0xf0,0xf1,0xf2,0xf3,0xf4,
			 0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,EOT},
			{0x01,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,
			 0x00,0x00,0x00,0x00,0x00,0x30,0x38,0x00,0x00,0x00,
			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
			 0x01,0x00,0x00,0x40,0x00,0x01,0x00,0x00,0x40,0x00,
			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,NANA,0x00,EOT}},
		{0x8,
			{0x30,0x60,0x61,0x70,0xf0,EOT},
			{0x00,0x03,0x00,0x0a,0x00,EOT}},
		{0x9,
			{0x30,0x60,0x61,EOT},
			{0x00,0x02,0x01,EOT}},
		{0xa,
			{0x30,0x60,0x61,0x70,0xf0,EOT},
			{0x00,0x03,0x10,0x0b,0x00,EOT}},
		{EOT}}},
	{0x8716, "IT8716", {
		{EOT}}},
	{0x8718, "IT8718", {
		{EOT}}},
	{EOT}
};

void
dump_ite(unsigned short port, unsigned short id) 
{
	int i, j, k;
	signed short *idx;
	printf ("ITE ");


	/* ID Mapping Table
	   unknown -> IT8711 (no datasheet)
	   unknown -> IT8722 (no datasheet)
	   0x8702 -> IT8702
	   0x8705 -> IT8700 or IT8705
	   0x8708 -> IT8708
	   0x8710 -> IT8710
	   0x8712 -> IT8712
	   0x8716 -> IT8716
	   0x8718 -> IT8718
	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
	*/
	switch(id) {
	case 0x8702:
	case 0x8705:
	case 0x8710:
	case 0x8712:
	case 0x8716:
	case 0x8718:
		for (i=0;; i++) {
			if (ite_reg_table[i].superio_id == EOT)
				break;
			if ((unsigned short)ite_reg_table[i].superio_id != id)
				continue;
			printf ("%s\n", ite_reg_table[i].name);
			for (j=0;; j++) {
				if (ite_reg_table[i].ldn[j].ldn == EOT)
					break;
				if (ite_reg_table[i].ldn[j].ldn != NOLDN) {
					printf("switching to LDN 0x%01x\n",
					       ite_reg_table[i].ldn[j].ldn);
					regwrite(port, 0x07,
					         ite_reg_table[i].ldn[j].ldn);
				}
				idx = ite_reg_table[i].ldn[j].idx;
				printf("idx ");
				for (k=0;; k++) {
					if (idx[k] == EOT)
						break;
					printf("%02x ", idx[k]);
				}
				printf("\nval ");
				for (k=0;; k++) {
					if (idx[k] == EOT)
						break;
					printf("%02x ", regval(port, idx[k]));
				}
				printf("\ndef ");
				idx = ite_reg_table[i].ldn[j].def;
				for (k=0;; k++) {
					if (idx[k] == EOT)
						break;
					if (idx[k] == NANA)
						printf("NA ");
					else
						printf("%02x ", idx[k]);
				}
				printf("\n");
			}
					
		}
		break;
	default:
		printf ("unknown ITE chip, id=%04x\n", id);
		for (i=0x20; i<=0x24; i++)
			printf("index %02x=%02x\n", i, regval(port, i));
		break;
	}
}

void
probe_idregs_simple(unsigned short port){
	unsigned char id;
	outb(0x20, port);
	if (inb(port) != 0x20)  {
		if (inb(port) == 0xff )
			printf ("No SuperI/O chip found at 0x%04x\n", port);
		else
			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
					port, inb(port), inb(port + 1));
		return;
	}
	id = inb(port + 1);

	printf("SuperI/O found at 0x%02x: id = 0x%02x\n", port, id);
	if (id == 0xff)
		return;

	if (familyid[id]) 
		printf("%s\n", familyid[id]);
	else
		printf("<unknown>\n");

	switch(id) {
		case 0xf1:
			dump_ns8374(port);
			break;
		default:
			printf("no dump for 0x%02x\n", id);
			break;
	}
}


void
probe_idregs_fintek(unsigned short port){
	unsigned int vid, did, success = 0;

	/* Enable configuration sequence (Fintek uses this for example)
	   Older ITE chips have the same enable sequence */
	outb(0x87, port);
	outb(0x87, port);

	outb(0x20, port);
	if (inb(port) != 0x20)  {
		if (inb(port) == 0xff )
			printf ("No SuperIO chip found at 0x%04x\n", port);
		else
			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
					port, inb(port), inb(port + 1));
		return;
	}
	did = inb(port + 1);

	did |= (regval(port, 0x21)<<8);

	vid = regval(port, 0x23);
	vid |= (regval(port, 0x24)<<8);

	printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);

	if (vid == 0xff || vid == 0xffff)
		return;

	/* printf("%s\n", familyid[id]); */
	switch(did) {
		case 0x0887: /* pseudoreversed for ITE8708 */
		case 0x1087: /* pseudoreversed for ITE8710 */
			success = 1;
			dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
			/* disable configuration */
			regwrite(port, 0x02, 0x02);
			break;
		default:
			break;
	}
	switch(vid) {
		case 0x3419:
			success = 1;
			dump_fintek(port, did);
			break;
		default:
			break;
	}
	if (!success)
		printf("no dump for vid 0x%04x, did 0x%04x\n", vid, did);

	/* disable configuration (for Fintek, doesn't hurt ITE) */
	outb(0xaa, port);
}

void
probe_idregs_ite(unsigned short port){
	unsigned int id, chipver;

	/* Enable configuration sequence (ITE uses this for newer IT87[012]x)
	   IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
	   IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
	   IT86xx series uses different ports
	   IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
	   IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes */
	outb(0x87, port);
	outb(0x01, port);
	outb(0x55, port);
	if (port == 0x2e)
		outb(0x55, port);
	else
		outb(0xAA, port);

	/* Read Chip ID Byte 1 */
	id = regval(port, 0x20);
	if (id != 0x87)  {
		if (inb(port) == 0xff )
			printf ("No SuperIO chip found at 0x%04x\n", port);
		else
			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
					port, inb(port), inb(port + 1));
		return;
	}

	id <<= 8;

	/* Read Chip ID Byte 2 */
	id |= regval(port, 0x21);

	/* Read Chip Version, only bit 3..0 for all IT87xx */
	chipver = regval(port, 0x22) & 0x0f;

	/* ID Mapping Table
	   unknown -> IT8711 (no datasheet)
	   unknown -> IT8722 (no datasheet)
	   0x8702 -> IT8702
	   0x8705 -> IT8700 or IT8705
	   0x8710 -> IT8710
	   0x8712 -> IT8712
	   0x8716 -> IT8716
	   0x8718 -> IT8718
	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
	*/
	printf("SuperI/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
	       port, id, chipver);

	switch(id) {
		case 0x8702:
		case 0x8705:
		case 0x8712:
		case 0x8716:
		case 0x8718:
		case 0x8726:
			dump_ite(port, id);
			break;
		default:
			printf("no dump for id 0x%04x\n", id);
			break;
	}
	/* disable configuration */
	regwrite(port, 0x02, 0x02);
}

void
probe_superio(unsigned short port) {
	probe_idregs_simple(port);
	probe_idregs_fintek(port);
	probe_idregs_ite(port);
}

int
main(int argc, char *argv[])
{
	if (iopl(3) < 0) {
		perror("iopl");
		exit(1);
	}

	/* try the 2e */
	probe_superio(0x2e);
	/* now try the 4e */
	probe_superio(0x4e);

	return 0;
}