360 lines
7.2 KiB
C
360 lines
7.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "superiotool.h"
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#if defined(__FreeBSD__)
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#include <fcntl.h>
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#include <unistd.h>
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#endif
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/* Command line options. */
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int dump = 0, verbose = 0, extra_dump = 0, alternate_dump = 0;
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/* Global flag which indicates whether a chip was detected at all. */
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int chip_found = 0;
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static void set_bank(uint16_t port, uint8_t bank)
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{
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OUTB(0x4E, port);
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OUTB(bank, port + 1);
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}
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static uint8_t datareg(uint16_t port, uint8_t reg)
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{
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OUTB(reg, port);
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return INB(port + 1);
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}
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uint8_t regval(uint16_t port, uint8_t reg)
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{
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OUTB(reg, port);
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return INB(port + ((port == 0x3bd) ? 2 : 1)); /* 0x3bd is special. */
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}
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void regwrite(uint16_t port, uint8_t reg, uint8_t val)
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{
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OUTB(reg, port);
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OUTB(val, port + 1);
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}
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void enter_conf_mode_winbond_fintek_ite_8787(uint16_t port)
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{
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OUTB(0x87, port);
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OUTB(0x87, port);
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}
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void exit_conf_mode_winbond_fintek_ite_8787(uint16_t port)
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{
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OUTB(0xaa, port); /* Fintek, Winbond */
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regwrite(port, 0x02, 0x02); /* ITE */
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}
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void enter_conf_mode_fintek_7777(uint16_t port)
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{
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OUTB(0x77, port);
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OUTB(0x77, port);
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}
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void exit_conf_mode_fintek_7777(uint16_t port)
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{
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OUTB(0xaa, port); /* Fintek */
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}
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int superio_unknown(const struct superio_registers reg_table[], uint16_t id)
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{
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return !strncmp(get_superio_name(reg_table, id), "<unknown>", 9);
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}
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const char *get_superio_name(const struct superio_registers reg_table[],
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uint16_t id)
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{
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int i;
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for (i = 0; /* Nothing */; i++) {
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if (reg_table[i].superio_id == EOT)
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break;
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if ((uint16_t)reg_table[i].superio_id != id)
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continue;
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return reg_table[i].name;
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}
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return "<unknown>";
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}
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static void dump_regs(const struct superio_registers reg_table[],
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int i, int j, uint16_t port, uint8_t ldn_sel)
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{
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int k;
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const int16_t *idx, *def;
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if (reg_table[i].ldn[j].ldn != NOLDN) {
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printf("LDN 0x%02x", reg_table[i].ldn[j].ldn);
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if (reg_table[i].ldn[j].name != NULL)
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printf(" (%s)", reg_table[i].ldn[j].name);
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regwrite(port, ldn_sel, reg_table[i].ldn[j].ldn);
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} else {
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if (reg_table[i].ldn[j].name == NULL)
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printf("Register dump:");
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else
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printf("(%s)", reg_table[i].ldn[j].name);
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}
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idx = reg_table[i].ldn[j].idx;
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def = reg_table[i].ldn[j].def;
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if (alternate_dump) {
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int skip_def = 0;
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printf("\nidx val def\n");
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for (k = 0; idx[k] != EOT; k++) {
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printf("0x%02x: 0x%02x", idx[k], regval(port, idx[k]));
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if (skip_def || def[k] == EOT) {
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skip_def = 1;
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printf("\n");
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continue;
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}
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if (def[k] == NANA)
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printf(" (NA)\n");
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else if (def[k] == RSVD)
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printf(" (RR)\n");
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else if (def[k] == MISC)
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printf(" (MM)\n");
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else
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printf(" (0x%02x)\n", def[k]);
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}
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} else {
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printf("\nidx");
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for (k = 0; idx[k] != EOT; k++) {
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if (k && !(k % 8))
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putchar(' ');
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printf(" %02x", idx[k]);
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}
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printf("\nval");
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for (k = 0; idx[k] != EOT; k++) {
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if (k && !(k % 8))
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putchar(' ');
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printf(" %02x", regval(port, idx[k]));
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}
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printf("\ndef");
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for (k = 0; def[k] != EOT; k++) {
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if (k && !(k % 8))
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putchar(' ');
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if (def[k] == NANA)
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printf(" NA");
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else if (def[k] == RSVD)
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printf(" RR");
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else if (def[k] == MISC)
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printf(" MM");
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else
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printf(" %02x", def[k]);
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}
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}
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printf("\n");
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}
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void dump_superio(const char *vendor,
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const struct superio_registers reg_table[],
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uint16_t port, uint16_t id, uint8_t ldn_sel)
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{
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int i, j, no_dump_available = 1;
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if (!dump)
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return;
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for (i = 0; /* Nothing */; i++) {
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if (reg_table[i].superio_id == EOT)
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break;
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if ((uint16_t)reg_table[i].superio_id != id)
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continue;
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for (j = 0; /* Nothing */; j++) {
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if (reg_table[i].ldn[j].ldn == EOT)
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break;
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no_dump_available = 0;
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dump_regs(reg_table, i, j, port, ldn_sel);
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}
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if (no_dump_available)
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printf("No dump available for this Super I/O\n");
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}
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}
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void dump_io(uint16_t iobase, uint16_t length)
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{
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uint16_t i;
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printf("Dumping %d I/O mapped registers at base 0x%04x:\n",
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length, iobase);
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for (i = 0; i < length; i++)
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printf("%02x ", i);
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printf("\n");
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for (i = 0; i < length; i++)
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printf("%02x ", INB(iobase + i));
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printf("\n");
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}
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void dump_data(uint16_t iobase, int bank)
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{
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uint16_t i;
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printf("Bank %d:\n", bank);
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printf(" ");
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for (i = 0; i < 16; i++)
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printf("%02x ", i);
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set_bank(iobase, bank);
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for (i = 0; i < 256; i++) {
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if (i % 16 == 0)
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printf("\n%02x: ", i / 16);
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printf("%02x ", datareg(iobase, i));
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}
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printf("\n");
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}
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void probing_for(const char *vendor, const char *info, uint16_t port)
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{
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if (!verbose)
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return;
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/* Yes, there's no space between '%s' and 'at'! */
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printf("Probing for %s Super I/O %sat 0x%x...\n", vendor, info, port);
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}
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/** Print a list of all supported chips from the given vendor. */
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void print_vendor_chips(const char *vendor,
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const struct superio_registers reg_table[])
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{
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int i;
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for (i = 0; reg_table[i].superio_id != EOT; i++) {
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printf("%s %s", vendor, reg_table[i].name);
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/* Unless the ldn is empty, assume this chip has a dump. */
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if (reg_table[i].ldn[0].ldn != EOT)
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printf(" (dump available)");
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printf("\n");
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}
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/* If we printed any chips for this vendor, put in a blank line. */
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if (i != 0)
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printf("\n");
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}
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/** Print a list of all chips supported by superiotool. */
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void print_list_of_supported_chips(void)
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{
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int i;
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printf("Supported Super I/O chips:\n\n");
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for (i = 0; i < ARRAY_SIZE(vendor_print_functions); i++)
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vendor_print_functions[i].print_list();
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printf("See <https://coreboot.org/Superiotool#Supported_devices> "
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"for more information.\n");
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}
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static void print_version(void)
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{
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printf("superiotool r%s\n", SUPERIOTOOL_VERSION);
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}
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int main(int argc, char *argv[])
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{
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int i, j, opt, option_index;
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#if defined(__FreeBSD__)
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int io_fd;
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#endif
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static const struct option long_options[] = {
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{"dump", no_argument, NULL, 'd'},
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{"extra-dump", no_argument, NULL, 'e'},
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{"alternate-dump", no_argument, NULL, 'a'},
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{"list-supported", no_argument, NULL, 'l'},
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{"verbose", no_argument, NULL, 'V'},
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{"version", no_argument, NULL, 'v'},
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{"help", no_argument, NULL, 'h'},
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{0, 0, 0, 0}
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};
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while ((opt = getopt_long(argc, argv, "dealVvh",
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long_options, &option_index)) != EOF) {
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switch (opt) {
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case 'd':
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dump = 1;
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break;
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case 'e':
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extra_dump = 1;
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break;
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case 'a':
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alternate_dump = 1;
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break;
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case 'l':
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print_list_of_supported_chips();
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exit(0);
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break;
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case 'V':
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verbose = 1;
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break;
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case 'v':
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print_version();
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exit(0);
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break;
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case 'h':
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printf(USAGE);
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printf(USAGE_INFO);
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exit(0);
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break;
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default:
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/* Unknown option. */
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exit(1);
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break;
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}
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}
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#if defined(__FreeBSD__)
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if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
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perror("/dev/io");
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#elif defined(__NetBSD__)
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if (iopl(3) < 0) {
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perror("iopl");
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#else
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if (ioperm(0, 6000, 1) < 0) {
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perror("ioperm");
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#endif
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printf("Superiotool must be run as root.\n");
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exit(1);
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}
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print_version();
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#ifdef PCI_SUPPORT
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/* Do some basic libpci init. */
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pacc = pci_alloc();
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pci_init(pacc);
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pci_scan_bus(pacc);
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#endif
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for (i = 0; i < ARRAY_SIZE(superio_ports_table); i++) {
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for (j = 0; superio_ports_table[i].ports[j] != EOT; j++)
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superio_ports_table[i].probe_idregs(
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superio_ports_table[i].ports[j]);
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}
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if (!chip_found)
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printf("No Super I/O found\n");
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#if defined(__FreeBSD__)
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close(io_fd);
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#endif
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return 0;
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}
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