diff options
Diffstat (limited to 'tests/mtd-tests/nandbiterrs.c')
| -rw-r--r-- | tests/mtd-tests/nandbiterrs.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/tests/mtd-tests/nandbiterrs.c b/tests/mtd-tests/nandbiterrs.c index f583c14..424a95f 100644 --- a/tests/mtd-tests/nandbiterrs.c +++ b/tests/mtd-tests/nandbiterrs.c @@ -63,12 +63,13 @@ #define MODE_INCREMENTAL 0x02 #define MODE_OVERWRITE 0x04 #define PAGE_ERASED 0x08 +#define CONTINUOUS_READ 0x10 static int peb = -1, page = -1, max_overwrite = -1, seed = -1; static const char *mtddev; static unsigned char *wbuffer, *rbuffer, *old_data; -static int fd, pagesize, pagecount, flags; +static int fd, pagesize, bs, pagecount, flags; static struct mtd_dev_info mtd; static libmtd_t mtd_desc; @@ -81,6 +82,7 @@ static const struct option options[] = { { "erased", no_argument, NULL, 'e' }, { "writes", required_argument, NULL, 'w' }, { "incremental", no_argument, NULL, 'i' }, + { "continuous", no_argument, NULL, 'c' }, { "overwrite", no_argument, NULL, 'o' }, { NULL, 0, NULL, 0 }, }; @@ -95,7 +97,8 @@ static NORETURN void usage(int status) " -b, --peb <num> Use this physical erase block\n" " -p, --page <num> Use this page within the erase block\n" " -s, --seed <num> Specify seed for PRNG\n" - " -e, --erased Test erased pages instead of written pages\n\n" + " -e, --erased Test erased pages instead of written pages\n" + " -c, --continuous Use two consecutive pages (incremental test only)\n\n" "Options controling test mode:\n" " -i, --incremental Manually insert bit errors until ECC fails\n" " -o, --overwrite Rewrite page until bits flip and ECC fails\n\n" @@ -124,7 +127,7 @@ static void process_options(int argc, char **argv) int c; while (1) { - c = getopt_long(argc, argv, "hkb:p:s:eiow:", options, NULL); + c = getopt_long(argc, argv, "hkb:p:s:eiow:c", options, NULL); if (c == -1) break; @@ -175,6 +178,9 @@ static void process_options(int argc, char **argv) case 'e': flags |= PAGE_ERASED; break; + case 'c': + flags |= CONTINUOUS_READ; + break; case 'h': usage(EXIT_SUCCESS); default: @@ -193,6 +199,9 @@ static void process_options(int argc, char **argv) if (!(flags & (MODE_OVERWRITE|MODE_INCREMENTAL))) errmsg_die("No test mode specified!"); + if (flags & CONTINUOUS_READ && !(flags & MODE_INCREMENTAL)) + errmsg_die("Use --continuous with --incremental only!"); + if ((max_overwrite > 0) && !(flags & MODE_OVERWRITE)) errmsg_die("Write count specified but mode is not --overwrite!"); @@ -235,9 +244,9 @@ static void init_buffer(void) unsigned int i; if (flags & PAGE_ERASED) { - memset(wbuffer, 0xff, pagesize); + memset(wbuffer, 0xff, bs); } else { - for (i = 0; i < pagesize; ++i) + for (i = 0; i < bs; ++i) wbuffer[i] = hash(i+seed); } } @@ -251,7 +260,7 @@ static int write_page(void) goto fail_mode; err = mtd_write(mtd_desc, &mtd, fd, peb, page*pagesize, - wbuffer, pagesize, NULL, 0, 0); + wbuffer, bs, NULL, 0, 0); if (err) fprintf(stderr, "Failed to write page %d in block %d\n", peb, page); @@ -290,7 +299,7 @@ static int read_page(void) if (ioctl(fd, ECCGETSTATS, &old) != 0) goto failstats; - err = mtd_read(&mtd, fd, peb, page*pagesize, rbuffer, pagesize); + err = mtd_read(&mtd, fd, peb, page*pagesize, rbuffer, bs); if (err) { fputs("Read failed!\n", stderr); return -1; @@ -316,7 +325,7 @@ static int verify_page(void) int erased = flags & PAGE_ERASED; unsigned int i, errs = 0; - for (i = 0; i < pagesize; ++i) { + for (i = 0; i < bs; ++i) { if (rbuffer[i] != (erased ? 0xff : hash(i+seed))) ++errs; } @@ -332,7 +341,7 @@ static int insert_biterror(void) { int bit, mask, byte; - for (byte = 0; byte < pagesize; ++byte) { + for (byte = 0; byte < bs; ++byte) { for (bit = 7, mask = 0x80; bit >= 0; bit--, mask >>= 1) { if (wbuffer[byte] & mask) { wbuffer[byte] &= ~mask; @@ -461,6 +470,10 @@ int main(int argc, char **argv) pagesize = mtd.subpage_size; pagecount = mtd.eb_size / pagesize; + if (!(flags & CONTINUOUS_READ)) + bs = pagesize; + else + bs = 2 * pagesize; if (peb >= mtd.eb_cnt) return errmsg("Physical erase block %d is out of range!", peb); @@ -483,13 +496,13 @@ int main(int argc, char **argv) } } - wbuffer = malloc(pagesize); + wbuffer = malloc(bs); if (!wbuffer) { perror(NULL); goto fail_dev; } - rbuffer = malloc(pagesize); + rbuffer = malloc(bs); if (!rbuffer) { perror(NULL); goto fail_rbuffer; |