bloblist: Add a command

It is helpful to be able to see basic statistics about the bloblist and
also to list its contents. Add a 'bloblist' command to handle this.

Put the display functions in the bloblist modules rather than in the
command code itself. That allows showing a list from SPL, where commands
are not available.

Also make bloblist_first/next_blob() static as they are not used outside
this file.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/bloblist.h b/include/bloblist.h
index 5784c2226e..6c37cd2a63 100644
--- a/include/bloblist.h
+++ b/include/bloblist.h
@@ -19,6 +19,7 @@ enum {
 	BLOBLIST_ALIGN		= 16,
 };
 
+/* Supported tags - add new ones to tag_name in bloblist.c */
 enum bloblist_tag_t {
 	BLOBLISTT_NONE = 0,
 
@@ -35,6 +36,8 @@ enum bloblist_tag_t {
 	BLOBLISTT_INTEL_VBT,		/* Intel Video-BIOS table */
 	BLOBLISTT_TPM2_TCG_LOG,		/* TPM v2 log space */
 	BLOBLISTT_TCPA_LOG,		/* TPM log space */
+
+	BLOBLISTT_COUNT
 };
 
 /**
@@ -207,6 +210,35 @@ int bloblist_check(ulong addr, uint size);
 int bloblist_finish(void);
 
 /**
+ * bloblist_get_stats() - Get information about the bloblist
+ *
+ * This returns useful information about the bloblist
+ */
+void bloblist_get_stats(ulong *basep, ulong *sizep, ulong *allocedp);
+
+/**
+ * bloblist_show_stats() - Show information about the bloblist
+ *
+ * This shows useful information about the bloblist on the console
+ */
+void bloblist_show_stats(void);
+
+/**
+ * bloblist_show_list() - Show a list of blobs in the bloblist
+ *
+ * This shows a list of blobs, showing their address, size and tag.
+ */
+void bloblist_show_list(void);
+
+/**
+ * bloblist_tag_name() - Get the name for a tag
+ *
+ * @tag: Tag to check
+ * @return name of tag, or "invalid" if an invalid tag is provided
+ */
+const char *bloblist_tag_name(enum bloblist_tag_t tag);
+
+/**
  * bloblist_init() - Init the bloblist system with a single bloblist
  *
  * This uses CONFIG_BLOBLIST_ADDR and CONFIG_BLOBLIST_SIZE to set up a bloblist