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-
-
- #ifndef __i386__
- # error "This program can't compile or run on non-intel computers"
- #else
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
-
- #ifdef __FreeBSD__
-
- #include <fcntl.h>
- #include <machine/cpufunc.h>
-
- #define OUTB(data, port) outb(port, data)
- #define OUTW(data, port) outw(port, data)
- #define OUTL(data, port) outl(port, data)
-
- #else
-
- #include <sys/io.h>
-
- #define OUTB(data, port) outb(data, port)
- #define OUTW(data, port) outw(data, port)
- #define OUTL(data, port) outl(data, port)
-
- #endif
-
- int main(int argc, char **argv)
- {
- unsigned int i, j, n;
- unsigned int ioaddr;
- unsigned long recvrstat;
- unsigned char buf[128];
- unsigned char b;
-
- if (argc != 3) {
- printf("Usage: romid ioaddr [erase|protect|unprotect|id|read >file|prog <file]\n");
- exit(-1);
- }
-
- #ifdef __FreeBSD__
-
- open("/dev/io",O_RDONLY,0);
- #else
- setuid(0);
- if (iopl(3)) {
- perror("iopl()");
- exit(1);
- }
- #endif
-
- sscanf(argv[1],"%x",&ioaddr);
-
- OUTW(0x803, ioaddr+0xe);
- recvrstat = inl(ioaddr);
-
-
- OUTL((recvrstat & 0xf00fffff)|0x00600000, ioaddr);
-
-
- OUTW(0x800, ioaddr+0xe);
-
- if (strcmp(argv[2], "erase") == 0) {
-
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0x80, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0x10, ioaddr+0x8);
- printf("Bios ROM at %04x has been erased\n", ioaddr);
- } else if (strcmp(argv[2], "protect") == 0) {
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xa0, ioaddr+0x8);
- printf("Software Data Protection for Bios ROM at %04x has been enabled\n",
- ioaddr);
- } else if (strcmp(argv[2], "unprotect") == 0) {
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0x80, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0x20, ioaddr+0x8);
- printf("Software Data Protection for Bios ROM at %04x has been disabled\n",
- ioaddr);
- } else if (strcmp(argv[2], "id") == 0) {
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0x90, ioaddr+0x8);
-
- printf("Manufacturer ID - ");
-
- OUTL(0x0000, ioaddr+0x4);
- printf("%02x\n", inb(ioaddr+0x8));
-
- OUTL(0x0001, ioaddr+0x4);
- printf("Device ID - %02x\n", inb(ioaddr+0x8));
-
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xf0, ioaddr+0x8);
- } else if (strcmp(argv[2], "read") == 0) {
- for (i = 0; i < 65536; i++) {
- OUTL(i, ioaddr+0x4);
- b = inb(ioaddr+0x8);
- write(1, &b, 1);
- }
- } else if (strcmp(argv[2], "prog") == 0) {
-
- for (i = 0, n = 0; i < 65536; i += n) {
- n = read(0, buf, 128);
- if (n == 0)
- break;
- if (n < 0) {
- perror("File Error");
- exit(-3);
- }
-
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xaa, ioaddr+0x8);
- OUTL(0x2aaa, ioaddr+0x4);
- OUTB(0x55, ioaddr+0x8);
- OUTL(0x5555, ioaddr+0x4);
- OUTB(0xa0, ioaddr+0x8);
- for (j = 0; j < n; j++) {
- OUTL(i+j, ioaddr+0x4);
- OUTB(buf[j], ioaddr+0x8);
- }
-
- while (inb(ioaddr+0x8) != buf[j-1])
- ;
- }
- }
-
-
- OUTW(0x803, ioaddr+0xe);
-
- OUTL(recvrstat, ioaddr);
- return 0;
- }
-
- #endif
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