To allow marking an imd tag with properties, add a flags field to the imd_header.
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
include/image-metadata.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/image-metadata.h b/include/image-metadata.h
index 5904d95acd37..ca73e6cf6ec6 100644
--- a/include/image-metadata.h
+++ b/include/image-metadata.h
@@ -28,6 +28,8 @@
#define IMD_TYPE_END 0x640c7fff
#define IMD_TYPE_INVALID 0xffffffff
+#define IMD_FLAG_TAG_VALID (1 << 0)
+
/*
* The IMD header. All data is stored in little endian format in the image.
* The next header starts at the next 4 byte boundary after the data.
@@ -35,6 +37,7 @@
struct imd_header {
uint32_t type; /* One of IMD_TYPE_* above */
uint32_t datalength; /* Length of the data (exluding the header) */
+ uint32_t flags;
};
/*
@@ -51,6 +54,11 @@ static inline int imd_is_string(uint32_t type)
return (type & 0x8000) ? 1 : 0;
}
+static inline int imd_tag_is_valid(uint32_t flags)
+{
+ return (flags & IMD_FLAG_TAG_VALID) ? 1 : 0;
+}
+
static inline int imd_type_valid(uint32_t type)
{
return (type & 0xffff0000) == 0x640c0000;
@@ -78,6 +86,11 @@ static inline uint32_t imd_read_length(const struct imd_header *imd)
return imd_read_le32(&imd->datalength);
}
+static inline uint32_t imd_read_flags(const struct imd_header *imd)
+{
+ return imd_read_le32(&imd->flags);
+}
+
const struct imd_header *imd_find_type(const struct imd_header *imd,
uint32_t type);
--
2.24.0
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