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authorSjoerd Simons <sjoerd.simons@collabora.co.uk>2015-01-05 18:13:36 +0100
committerTom Rini <trini@ti.com>2015-01-29 13:36:54 -0500
commit1a1ad8e0903ec916d1e3ef8c18fa335d765a4342 (patch)
treebefa1ea03b3cc9666d36ccdd96ebb90ddf6c2aa3 /fs
parent2af13d6b6265a6700c4f65597410b769895024bf (diff)
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fs: Add command to retrieve the filesystem type
New command to determine the filesystem type of a given partition. Optionally stores the filesystem type in a environment variable. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Reviewed-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/fs.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/fs.c b/fs/fs.c
index ddd751c..483273f 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -79,6 +79,7 @@ static inline int fs_uuid_unsupported(char *uuid_str)
struct fstype_info {
int fstype;
+ char *name;
/*
* Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
* should be false in most cases. For "virtual" filesystems which
@@ -105,6 +106,7 @@ static struct fstype_info fstypes[] = {
#ifdef CONFIG_FS_FAT
{
.fstype = FS_TYPE_FAT,
+ .name = "fat",
.null_dev_desc_ok = false,
.probe = fat_set_blk_dev,
.close = fat_close,
@@ -123,6 +125,7 @@ static struct fstype_info fstypes[] = {
#ifdef CONFIG_FS_EXT4
{
.fstype = FS_TYPE_EXT,
+ .name = "ext4",
.null_dev_desc_ok = false,
.probe = ext4fs_probe,
.close = ext4fs_close,
@@ -141,6 +144,7 @@ static struct fstype_info fstypes[] = {
#ifdef CONFIG_SANDBOX
{
.fstype = FS_TYPE_SANDBOX,
+ .name = "sandbox",
.null_dev_desc_ok = true,
.probe = sandbox_fs_set_blk_dev,
.close = sandbox_fs_close,
@@ -154,6 +158,7 @@ static struct fstype_info fstypes[] = {
#endif
{
.fstype = FS_TYPE_ANY,
+ .name = "unsupported",
.null_dev_desc_ok = true,
.probe = fs_probe_unsupported,
.close = fs_close_unsupported,
@@ -190,6 +195,7 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
if (!relocated) {
for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
i++, info++) {
+ info->name += gd->reloc_off;
info->probe += gd->reloc_off;
info->close += gd->reloc_off;
info->ls += gd->reloc_off;
@@ -503,3 +509,24 @@ int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
return CMD_RET_SUCCESS;
}
+
+int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct fstype_info *info;
+
+ if (argc < 3 || argc > 4)
+ return CMD_RET_USAGE;
+
+ if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
+ return 1;
+
+ info = fs_get_info(fs_type);
+
+ if (argc == 4)
+ setenv(argv[3], info->name);
+ else
+ printf("%s\n", info->name);
+
+ return CMD_RET_SUCCESS;
+}
+