int ubi_part(char *part_name, const char *vid_header_offset)
{
struct mtd_info *mtd;
int err = 0;
ubi_detach();
mtd_probe_devices();
mtd = get_mtd_device_nm(part_name);
if (IS_ERR(mtd)) {
printf("Partition %s not found!\n", part_name);
return 1;
}
put_mtd_device(mtd);
err = ubi_dev_scan(mtd, vid_header_offset);
if (err) {
printf("UBI init error %d\n", err);
printf("Please check, if the correct MTD partition is used (size big enough?)\n");
return err;
}
ubi = ubi_devices[0];
return 0;
}
BAREBOX_CMD_END
static int do_ubidetach(int argc, char *argv[])
{
int fd, ret;
struct mtd_info_user user;
if (argc != 2)
return COMMAND_ERROR_USAGE;
fd = open(argv[optind], O_RDWR);
if (fd < 0) {
int ubi_num = simple_strtoul(argv[1], NULL, 0);
ret = ubi_detach(ubi_num);
goto out;
}
ret = ioctl(fd, MEMGETINFO, &user);
if (!ret) {
int ubi_num = ubi_num_get_by_mtd(user.mtd);
if (ubi_num < 0) {
ret = ubi_num;
goto out;
}
ret = ubi_detach(ubi_num);
if (!ret)
goto out_close;
}
out_close:
close(fd);
out:
if (ret)
printf("failed to detach: %s\n", strerror(-ret));
return ret;
}
static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int64_t size = 0;
ulong addr = 0;
if (argc < 2)
return CMD_RET_USAGE;
if (strcmp(argv[1], "detach") == 0)
return ubi_detach();
if (strcmp(argv[1], "part") == 0) {
const char *vid_header_offset = NULL;
/* Print current partition */
if (argc == 2) {
if (!ubi) {
printf("Error, no UBI device selected!\n");
return 1;
}
printf("Device %d: %s, MTD partition %s\n",
ubi->ubi_num, ubi->ubi_name, ubi->mtd->name);
return 0;
}
if (argc < 3)
return CMD_RET_USAGE;
if (argc > 3)
vid_header_offset = argv[3];
return ubi_part(argv[2], vid_header_offset);
}
if ((strcmp(argv[1], "part") != 0) && !ubi) {
printf("Error, no UBI device selected!\n");
return 1;
}
if (strcmp(argv[1], "info") == 0) {
int layout = 0;
if (argc > 2 && !strncmp(argv[2], "l", 1))
layout = 1;
return ubi_info(layout);
}
if (strcmp(argv[1], "check") == 0) {
if (argc > 2)
return ubi_check(argv[2]);
printf("Error, no volume name passed\n");
return 1;
}
if (strncmp(argv[1], "create", 6) == 0) {
int dynamic = 1; /* default: dynamic volume */
int id = UBI_VOL_NUM_AUTO;
/* Use maximum available size */
size = 0;
/* E.g., create volume size type vol_id */
if (argc == 6) {
id = simple_strtoull(argv[5], NULL, 16);
argc--;
}
/* E.g., create volume size type */
if (argc == 5) {
if (strncmp(argv[4], "s", 1) == 0)
dynamic = 0;
else if (strncmp(argv[4], "d", 1) != 0) {
printf("Incorrect type\n");
return 1;
}
argc--;
}
/* E.g., create volume size */
if (argc == 4) {
if (argv[3][0] != '-')
size = simple_strtoull(argv[3], NULL, 16);
argc--;
}
/* Use maximum available size */
if (!size) {
size = (int64_t)ubi->avail_pebs * ubi->leb_size;
printf("No size specified -> Using max size (%lld)\n", size);
}
/* E.g., create volume */
if (argc == 3)
return ubi_create_vol(argv[2], size, dynamic, id);
}
if (strncmp(argv[1], "remove", 6) == 0) {
/* E.g., remove volume */
if (argc == 3)
return ubi_remove_vol(argv[2]);
}
if (strncmp(argv[1], "write", 5) == 0) {
int ret;
if (argc < 5) {
printf("Please see usage\n");
return 1;
}
addr = simple_strtoul(argv[2], NULL, 16);
size = simple_strtoul(argv[4], NULL, 16);
if (strlen(argv[1]) == 10 &&
strncmp(argv[1] + 5, ".part", 5) == 0) {
if (argc < 6) {
ret = ubi_volume_continue_write(argv[3],
(void *)addr, size);
} else {
size_t full_size;
full_size = simple_strtoul(argv[5], NULL, 16);
ret = ubi_volume_begin_write(argv[3],
(void *)addr, size, full_size);
}
} else {
ret = ubi_volume_write(argv[3], (void *)addr, size);
}
if (!ret) {
printf("%lld bytes written to volume %s\n", size,
argv[3]);
}
return ret;
}
if (strncmp(argv[1], "read", 4) == 0) {
size = 0;
/* E.g., read volume size */
if (argc == 5) {
size = simple_strtoul(argv[4], NULL, 16);
argc--;
}
/* E.g., read volume */
if (argc == 4) {
addr = simple_strtoul(argv[2], NULL, 16);
argc--;
}
if (argc == 3) {
return ubi_volume_read(argv[3], (char *)addr, size);
}
}
printf("Please see usage\n");
return 1;
}
