lib/igt_edid: add edid_get_size

This is a simple helper to get the size in bytes of an arbitrary EDID.

Signed-off-by: Simon Ser <simon.ser@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/igt_edid.c b/lib/igt_edid.c
index e71136f4..6cc5e7dd 100644
--- a/lib/igt_edid.c
+++ b/lib/igt_edid.c
@@ -275,6 +275,16 @@ void edid_update_checksum(struct edid *edid)
 }
 
 /**
+ * edid_get_size: return the size of the EDID block in bytes including EDID
+ * extensions, if any.
+ */
+size_t edid_get_size(const struct edid *edid)
+{
+	return sizeof(struct edid) +
+	       edid->extensions_len * sizeof(struct edid_ext);
+}
+
+/**
  * cea_sad_init_pcm:
  * @channels: the number of supported channels (max. 8)
  * @sampling_rates: bitfield of enum cea_sad_sampling_rate