diff options
Diffstat (limited to 'apps/examples/mtdpart')
-rw-r--r-- | apps/examples/mtdpart/mtdpart_main.c | 101 |
1 files changed, 72 insertions, 29 deletions
diff --git a/apps/examples/mtdpart/mtdpart_main.c b/apps/examples/mtdpart/mtdpart_main.c index 9b22aaf13..9c44826dd 100644 --- a/apps/examples/mtdpart/mtdpart_main.c +++ b/apps/examples/mtdpart/mtdpart_main.c @@ -156,6 +156,7 @@ int mtdpart_main(int argc, char *argv[]) FAR uint32_t *buffer; char blockname[32]; char charname[32]; + size_t partsize; ssize_t nbytes; off_t nblocks; off_t offset; @@ -217,27 +218,39 @@ int mtdpart_main(int argc, char *argv[]) } message("Flash Geometry:\n"); - message(" blocksize: %uld\n", (unsigned long)geo.blocksize); - message(" erasesize: %uld\n", (unsigned long)geo.erasesize); - message(" neraseblocks: %uld\n", (unsigned long)geo.neraseblocks); + message(" blocksize: %lu\n", (unsigned long)geo.blocksize); + message(" erasesize: %lu\n", (unsigned long)geo.erasesize); + message(" neraseblocks: %lu\n", (unsigned long)geo.neraseblocks); - /* Determine the size of each partition */ + /* Determine the size of each partition. Make each partition an even + * multiple of the erase block size (perhaps not using some space at the + * end of the FLASH). + */ blkpererase = geo.erasesize / geo.blocksize; - nblocks = geo.neraseblocks * blkpererase / CONFIG_EXAMPLES_MTDPART_NPARTITIONS; + nblocks = (geo.neraseblocks / CONFIG_EXAMPLES_MTDPART_NPARTITIONS) * blkpererase; + partsize = nblocks * geo.blocksize; + + message(" No. partitions: %u\n", CONFIG_EXAMPLES_MTDPART_NPARTITIONS); + message(" Partition size: %lu Blocks (%lu bytes)\n", nblocks, partsize); /* Now create MTD FLASH partitions */ + message("Creating partitions\n"); + for (offset = 0, i = 1; i <= CONFIG_EXAMPLES_MTDPART_NPARTITIONS; offset += nblocks, i++) { + message(" Partition %d. Block offset=%lu, size=%lu\n", + i, (unsigned long)offset, (unsigned long)nblocks); + /* Create the partition */ part[i] = mtd_partition(master, offset, nblocks); if (!part[i]) { - message("ERROR: mtd_partition failed. offset=%uld nblocks=%uld\n", + message("ERROR: mtd_partition failed. offset=%lu nblocks=%lu\n", (unsigned long)offset, (unsigned long)nblocks); msgflush(); exit(4); @@ -289,6 +302,8 @@ int mtdpart_main(int argc, char *argv[]) /* Now write the offset into every block */ + message("Initializing media:\n"); + offset = 0; for (i = 0; i < geo.neraseblocks; i++) { @@ -318,10 +333,15 @@ int mtdpart_main(int argc, char *argv[]) /* Now read each partition */ + message("Checking partitions:\n"); + for (offset = 0, i = 1; i <= CONFIG_EXAMPLES_MTDPART_NPARTITIONS; - offset += nblocks, i++) + offset += partsize, i++) { + message(" Partition %d. Byte offset=%lu, size=%lu\n", + i, (unsigned long)offset, (unsigned long)partsize); + /* Open the master MTD partition character driver for writing */ snprintf(charname, 32, "/dev/mtd%d", i); @@ -336,35 +356,57 @@ int mtdpart_main(int argc, char *argv[]) /* Now verify the offset in every block */ check = offset; - for (i = 0; i < nblocks; i++) + for (j = 0; j < nblocks; j++) { - for (j = 0; j < blkpererase; j++) +#if 0 /* Too much */ + message(" block=%u offset=%lu\n", j, (unsigned long) check); +#endif + + /* Read the next block into memory */ + + nbytes = read(fd, buffer, geo.blocksize); + if (nbytes < 0) { - /* Read the next block into memory */ + message("ERROR: read from %s failed: %d\n", charname, errno); + msgflush(); + exit(11); + } - nbytes = read(fd, buffer, geo.blocksize); - if (nbytes < 0) - { - message("ERROR: read from %s failed: %d\n", charname, errno); - msgflush(); - exit(11); - } + /* Since we forced the size of the partition to be an even number + * of erase blocks, we do not expect to encounter the end of file + * indication. + */ - /* Verfy the offsets in the block */ + else if (nbytes == 0) + { + message("ERROR: Unexpected end of file on %s\n", charname); + msgflush(); + exit(11); + } - check = offset; - for (k = 0; k < geo.blocksize / sizeof(uint32_t); k++) + /* This is not expected at all */ + + else if (nbytes != geo.blocksize) + { + message("ERROR: Short read from %s failed: %lu\n", + charname, (unsigned long)nbytes); + msgflush(); + exit(11); + } + + /* Verfy the offsets in the block */ + + for (k = 0; k < geo.blocksize / sizeof(uint32_t); k++) + { + if (buffer[k] != check) { - if (buffer[k] != check) - { - message("ERROR: Bad offset %uld, expected %uld\n", - buffer[k], check); - msgflush(); - exit(12); - } - - check += 4; + message("ERROR: Bad offset %lu, expected %lu\n", + (long)buffer[k], (long)check); + msgflush(); + exit(12); } + + check += 4; } } @@ -373,6 +415,7 @@ int mtdpart_main(int argc, char *argv[]) /* And exit without bothering to clean up */ + message("PASS: Everything looks good\n"); msgflush(); return 0; } |