diff options
Diffstat (limited to 'contrib/3c90xutil/bromutil.c')
| -rw-r--r-- | contrib/3c90xutil/bromutil.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/contrib/3c90xutil/bromutil.c b/contrib/3c90xutil/bromutil.c new file mode 100644 index 00000000..a736e5af --- /dev/null +++ b/contrib/3c90xutil/bromutil.c @@ -0,0 +1,169 @@ +/* + * readutil.c - perform various control ops on the 3c509b bios rom + * + */ + +#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__ + /* get permissions for in/out{blw} */ + open("/dev/io",O_RDONLY,0); +#else + setuid(0); /* if we're setuid, do it really */ + if (iopl(3)) { + perror("iopl()"); + exit(1); + } +#endif + + sscanf(argv[1],"%x",&ioaddr); + /* Set the register window to 3 for the 3c905b */ + OUTW(0x803, ioaddr+0xe); + recvrstat = inl(ioaddr); /* save the receiver status */ + /* set the receiver type to MII so the full bios rom address space + can be accessed */ + OUTL((recvrstat & 0xf00fffff)|0x00600000, ioaddr); + + /* Set the register window to 0 for the 3c905b */ + OUTW(0x800, ioaddr+0xe); + + if (strcmp(argv[2], "erase") == 0) { + /* do the funky chicken to erase the rom contents */ + 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); + /* 10ms delay needed */ + printf("Manufacturer ID - "); + /* manuf. id */ + OUTL(0x0000, ioaddr+0x4); + printf("%02x\n", inb(ioaddr+0x8)); + /* device id */ + OUTL(0x0001, ioaddr+0x4); + printf("Device ID - %02x\n", inb(ioaddr+0x8)); + /* undo the funky chicken */ + 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) { + /* program the rom in 128 bute chunks */ + 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); + } + /* disable SDP temporarily for programming a sector */ + 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); + } + /* wait for the programming of this sector to coomplete */ + while (inb(ioaddr+0x8) != buf[j-1]) + ; + } + } + + /* Set the register window to 3 for the 3c905b */ + OUTW(0x803, ioaddr+0xe); + /* restore the receiver status */ + OUTL(recvrstat, ioaddr); + return 0; +} + +#endif /* __i386__ */ |