summaryrefslogtreecommitdiff
path: root/util/superiotool/superiotool.c
blob: c5fa20d190ce5a4cc567f62638642f07099d0c09 (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
/* This file is part of the superiotool project */
/*
 * 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.
 */

#include "superiotool.h"

#if defined(__FreeBSD__)
#include <fcntl.h>
#include <unistd.h>
#endif

/* Command line options. */
int dump = 0, verbose = 0, extra_dump = 0, alternate_dump = 0;

/* Global flag which indicates whether a chip was detected at all. */
int chip_found = 0;

static void set_bank(uint16_t port, uint8_t bank)
{
	OUTB(0x4E, port);
	OUTB(bank, port + 1);
}

static uint8_t datareg(uint16_t port, uint8_t reg)
{
	OUTB(reg, port);
	return INB(port + 1);
}

uint8_t regval(uint16_t port, uint8_t reg)
{
	OUTB(reg, port);
	return INB(port + ((port == 0x3bd) ? 2 : 1)); /* 0x3bd is special. */
}

void regwrite(uint16_t port, uint8_t reg, uint8_t val)
{
	OUTB(reg, port);
	OUTB(val, port + 1);
}

void enter_conf_mode_winbond_fintek_ite_8787(uint16_t port)
{
	OUTB(0x87, port);
	OUTB(0x87, port);
}

void exit_conf_mode_winbond_fintek_ite_8787(uint16_t port)
{
	OUTB(0xaa, port);		/* Fintek, Winbond */
	regwrite(port, 0x02, 0x02);	/* ITE */
}

void enter_conf_mode_fintek_7777(uint16_t port)
{
	OUTB(0x77, port);
	OUTB(0x77, port);
}

void exit_conf_mode_fintek_7777(uint16_t port)
{
	OUTB(0xaa, port);		/* Fintek */
}

int superio_unknown(const struct superio_registers reg_table[], uint16_t id)
{
	return !strncmp(get_superio_name(reg_table, id), "<unknown>", 9);
}


const char *get_superio_name(const struct superio_registers reg_table[],
			     uint16_t id)
{
	int i;

	for (i = 0; /* Nothing */; i++) {
		if (reg_table[i].superio_id == EOT)
			break;

		if ((uint16_t)reg_table[i].superio_id != id)
			continue;

		return reg_table[i].name;
	}

	return "<unknown>";
}

static void dump_regs(const struct superio_registers reg_table[],
		      int i, int j, uint16_t port, uint8_t ldn_sel)
{
	int k;
	const int16_t *idx, *def;

	if (reg_table[i].ldn[j].ldn != NOLDN) {
		printf("LDN 0x%02x", reg_table[i].ldn[j].ldn);
		if (reg_table[i].ldn[j].name != NULL)
			printf(" (%s)", reg_table[i].ldn[j].name);
		regwrite(port, ldn_sel, reg_table[i].ldn[j].ldn);
	} else {
		if (reg_table[i].ldn[j].name == NULL)
			printf("Register dump:");
		else
			printf("(%s)", reg_table[i].ldn[j].name);
	}

	idx = reg_table[i].ldn[j].idx;
	def = reg_table[i].ldn[j].def;

	if (alternate_dump) {
		int skip_def = 0;

		printf("\nidx   val    def\n");

		for (k = 0; idx[k] != EOT; k++) {
			printf("0x%02x: 0x%02x", idx[k], regval(port, idx[k]));

			if (skip_def || def[k] == EOT) {
				skip_def = 1;
				printf("\n");
				continue;
			}
			if (def[k] == NANA)
				printf("   (NA)\n");
			else if (def[k] == RSVD)
				printf("   (RR)\n");
			else if (def[k] == MISC)
				printf("   (MM)\n");
			else
				printf("   (0x%02x)\n", def[k]);
		}
	} else {
		printf("\nidx");
		for (k = 0; idx[k] != EOT; k++) {
			if (k && !(k % 8))
				putchar(' ');
			printf(" %02x", idx[k]);
		}

		printf("\nval");
		for (k = 0; idx[k] != EOT; k++) {
			if (k && !(k % 8))
				putchar(' ');
			printf(" %02x", regval(port, idx[k]));
		}

		printf("\ndef");
		for (k = 0; def[k] != EOT; k++) {
			if (k && !(k % 8))
				putchar(' ');
			if (def[k] == NANA)
				printf(" NA");
			else if (def[k] == RSVD)
				printf(" RR");
			else if (def[k] == MISC)
				printf(" MM");
			else
				printf(" %02x", def[k]);
		}
	}
	printf("\n");
}

void dump_superio(const char *vendor,
		  const struct superio_registers reg_table[],
		  uint16_t port, uint16_t id, uint8_t ldn_sel)
{
	int i, j, no_dump_available = 1;

	if (!dump)
		return;

	for (i = 0; /* Nothing */; i++) {
		if (reg_table[i].superio_id == EOT)
			break;

		if ((uint16_t)reg_table[i].superio_id != id)
			continue;

		for (j = 0; /* Nothing */; j++) {
			if (reg_table[i].ldn[j].ldn == EOT)
				break;
			no_dump_available = 0;
			dump_regs(reg_table, i, j, port, ldn_sel);
		}

		if (no_dump_available)
			printf("No dump available for this Super I/O\n");
	}
}

void dump_io(uint16_t iobase, uint16_t length)
{
	uint16_t i;

	printf("Dumping %d I/O mapped registers at base 0x%04x:\n",
			length, iobase);
	for (i = 0; i < length; i++)
		printf("%02x ", i);
	printf("\n");
	for (i = 0; i < length; i++)
		printf("%02x ", INB(iobase + i));
	printf("\n");
}

void dump_data(uint16_t iobase, int bank)
{
	uint16_t i;

	printf("Bank %d:\n", bank);
	printf("    ");
	for (i = 0; i < 16; i++)
		printf("%02x ", i);
	set_bank(iobase, bank);
	for (i = 0; i < 256; i++) {
		if (i % 16 == 0)
			printf("\n%02x: ", i / 16);
		printf("%02x ", datareg(iobase, i));
	}
	printf("\n");
}

void probing_for(const char *vendor, const char *info, uint16_t port)
{
	if (!verbose)
		return;

	/* Yes, there's no space between '%s' and 'at'! */
	printf("Probing for %s Super I/O %sat 0x%x...\n", vendor, info, port);
}

/** Print a list of all supported chips from the given vendor. */
void print_vendor_chips(const char *vendor,
			const struct superio_registers reg_table[])
{
	int i;

	for (i = 0; reg_table[i].superio_id != EOT; i++) {
		printf("%s %s", vendor, reg_table[i].name);

		/* Unless the ldn is empty, assume this chip has a dump. */
		if (reg_table[i].ldn[0].ldn != EOT)
			printf(" (dump available)");

		printf("\n");
	}

	/* If we printed any chips for this vendor, put in a blank line. */
	if (i != 0)
		printf("\n");
}

/** Print a list of all chips supported by superiotool. */
void print_list_of_supported_chips(void)
{
	int i;

	printf("Supported Super I/O chips:\n\n");

	for (i = 0; i < ARRAY_SIZE(vendor_print_functions); i++)
		vendor_print_functions[i].print_list();

	printf("See <https://coreboot.org/Superiotool#Supported_devices> "
	       "for more information.\n");
}

static void print_version(void)
{
	printf("superiotool r%s\n", SUPERIOTOOL_VERSION);
}

int main(int argc, char *argv[])
{
	int i, j, opt, option_index;
#if defined(__FreeBSD__)
	int io_fd;
#endif

	static const struct option long_options[] = {
		{"dump",		no_argument, NULL, 'd'},
		{"extra-dump",		no_argument, NULL, 'e'},
		{"alternate-dump",	no_argument, NULL, 'a'},
		{"list-supported",	no_argument, NULL, 'l'},
		{"verbose",		no_argument, NULL, 'V'},
		{"version",		no_argument, NULL, 'v'},
		{"help",		no_argument, NULL, 'h'},
		{0, 0, 0, 0}
	};

	while ((opt = getopt_long(argc, argv, "dealVvh",
				  long_options, &option_index)) != EOF) {
		switch (opt) {
		case 'd':
			dump = 1;
			break;
		case 'e':
			extra_dump = 1;
			break;
		case 'a':
			alternate_dump = 1;
			break;
		case 'l':
			print_list_of_supported_chips();
			exit(0);
			break;
		case 'V':
			verbose = 1;
			break;
		case 'v':
			print_version();
			exit(0);
			break;
		case 'h':
			printf(USAGE);
			printf(USAGE_INFO);
			exit(0);
			break;
		default:
			/* Unknown option. */
			exit(1);
			break;
		}
	}

#if defined(__FreeBSD__)
	if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
		perror("/dev/io");
#else
	if (iopl(3) < 0) {
		perror("iopl");
#endif
		printf("Superiotool must be run as root.\n");
		exit(1);
	}

	print_version();

#ifdef PCI_SUPPORT
	/* Do some basic libpci init. */
	pacc = pci_alloc();
	pci_init(pacc);
	pci_scan_bus(pacc);
#endif

	for (i = 0; i < ARRAY_SIZE(superio_ports_table); i++) {
		for (j = 0; superio_ports_table[i].ports[j] != EOT; j++)
			superio_ports_table[i].probe_idregs(
				superio_ports_table[i].ports[j]);
	}

	if (!chip_found)
		printf("No Super I/O found\n");

#if defined(__FreeBSD__)
	close(io_fd);
#endif
	return 0;
}