static int getcheck(char* filename)
{
struct stat sstat;
if (sys_newstat(filename, &sstat) < 0)
{
lab_printf("fs: getcheck: Sorry, %s seems to be missing - or at least, not stat'able.\n", filename);
return 0;
}
return 1;
}
void lab_cmd_cat(int argc, const char** argv)
{
char *buf, *p;
int fd, sz;
if (argc != 2) {
lab_puts("cat: syntax: cat <filename>\r\n");
return;
}
if ((fd = sys_open(argv[1], O_RDONLY, 0)) < 0) {
lab_printf("lab: couldn't open the file, errno=%d\r\n", fd);
return;
}
buf = (char*)vmalloc(4096);
while ((sz = sys_read(fd, buf, 4096))) {
if (sz < 0) break;
for (p = buf; p < buf + sz; p++) {
if (*p == '\n')
lab_puts("\r\n");
else
lab_putc(*p);
}
if (lab_char_ready()) break;
}
lab_puts("\r\n");
if (sz < 0) {
lab_printf("lab: couldn't read the file, errno=%d\r\n", sz);
} else if (sz > 0) {
lab_printf("lab: user break\r\n");
}
sys_close(fd);
vfree(buf);
}
/*
* Main program
*/
void lab_cmd_nanddump(int argc, const char **argv)
{
unsigned char readbuf[512];
unsigned char oobbuf[16];
unsigned long ofs;
struct mtd_info* mtd = NULL;
int i, ofd, bs, start_addr, end_addr, pretty_print;
struct mtd_oob_buf oob = {0, 16, oobbuf};
unsigned char pretty_buf[120];
int retlen;
/* Make sure enough arguments were passed */
if (argc < 3 || argv[1][1] != '\0') {
lab_printf("usage: %s <mtd number> <dumpname> [start addr] [length]\r\n", argv[0]);
return;
}
/* Open MTD device */
if ((mtd = get_mtd_device(NULL, argv[1][0]-'0')) == NULL) {
lab_puts("Couldn't open flash\r\n");
return;
}
if (mtd->type != MTD_NANDFLASH) {
lab_puts("This MTD is not NAND flash. I can't dump this - sorry.\r\n");
put_mtd_device(mtd);
return;
}
/* Make sure device page sizes are valid */
if (!(mtd->oobsize == 16 && mtd->oobblock == 512) &&
!(mtd->oobsize == 8 && mtd->oobblock == 256)) {
lab_puts("Unknown flash (not normal NAND)\r\n");
put_mtd_device(mtd);
return;
}
/* Open output file for writing */
if ((ofd = sys_open(argv[2], O_WRONLY | O_CREAT, 0644)) == -1) {
lab_puts("Couldn't open outfile\r\n");
put_mtd_device(mtd);
return;
}
/* Initialize start/end addresses and block size */
start_addr = 0;
end_addr = mtd->size;
bs = mtd->oobblock;
/* See if start address and length were specified */
if (argc == 4) {
start_addr = simple_strtoul(argv[3], NULL, 0) & ~(bs - 1);
end_addr = mtd->size;
} else if (argc == 5) {
start_addr = simple_strtoul(argv[3], NULL, 0) & ~(bs - 1);
end_addr = (simple_strtoul(argv[3], NULL, 0) + simple_strtoul(argv[4], NULL, 0)) & ~(bs - 1);
}
/* Ask user if they would like pretty output */
lab_puts("Would you like formatted output? ");
if (tolower(pretty_buf[0] = lab_getc_seconds(NULL, 0)) != 'y')
pretty_print = 0;
else
pretty_print = 1;
lab_putc(pretty_buf[0]);
/* Print informative message */
lab_printf("\r\nDumping data starting at 0x%08x and ending at 0x%08x...\r\n",
start_addr, end_addr);
lab_printf("OOB size: %d. OOB block: %d\r\n",
mtd->oobsize, mtd->oobblock);
/* Dump the flash contents */
for (ofs = start_addr; ofs < end_addr ; ofs+=bs) {
struct nand_oobinfo oobsel;
oobsel.useecc = 0;
/* Read page data and exit on failure */
// if (MTD_READECC(mtd, ofs, bs, &retlen, readbuf, NULL, &oobsel)) {
if (MTD_READECC(mtd, ofs, bs, &retlen, readbuf, &oobbuf, NULL)) {
lab_puts("Error in mtdread\r\n");
// put_mtd_device(mtd);
// sys_close(ofd);
// return;
}
/* Write out page data */
if (pretty_print) {
for (i = 0; i < bs; i += 16) {
sprintf(pretty_buf,
"0x%08x: %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
(unsigned int) (ofs + i), readbuf[i],
readbuf[i+1], readbuf[i+2],
readbuf[i+3], readbuf[i+4],
readbuf[i+5], readbuf[i+6],
readbuf[i+7], readbuf[i+8],
readbuf[i+9], readbuf[i+10],
readbuf[i+11], readbuf[i+12],
readbuf[i+13], readbuf[i+14],
readbuf[i+15]);
sys_write(ofd, pretty_buf, 60);
}
} else
sys_write(ofd, readbuf, bs);
/* Read OOB data and exit on failure */
oob.start = ofs;
if ((ofs & 0xFFFF) == 0x0)
lab_printf("Dumping %lx\r", ofs);
#if 0
if (MTD_READOOB(mtd, ofs, mtd->oobsize, &retlen, oobbuf)) {
lab_puts("ioctl(MEMREADOOB) failed\r\n");
put_mtd_device(mtd);
sys_close(ofd);
return;
}
#endif
/* Write out OOB data */
if (pretty_print) {
if (mtd->oobsize == 16) {
sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
oobbuf[0], oobbuf[1], oobbuf[2],
oobbuf[3], oobbuf[4], oobbuf[5],
oobbuf[6], oobbuf[7], oobbuf[8],
oobbuf[9], oobbuf[10], oobbuf[11],
oobbuf[12], oobbuf[13], oobbuf[14],
oobbuf[15]);
sys_write(ofd, pretty_buf, 60);
} else {
sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x "
"%02x %02x\n",
oobbuf[0], oobbuf[1], oobbuf[2],
oobbuf[3], oobbuf[4], oobbuf[5],
oobbuf[6], oobbuf[7]);
sys_write(ofd, pretty_buf, 48);
}
} else
sys_write(ofd, oobbuf, mtd->oobsize);
}
/* Close the output file and MTD device */
put_mtd_device(mtd);
sys_close(ofd);
lab_puts("\n");
/* Exit happy */
return;
}
