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Diffstat (limited to 'include/drm/drm_displayid.h')
-rw-r--r--include/drm/drm_displayid.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
index c0d4df6a606f..9d3b745c3107 100644
--- a/include/drm/drm_displayid.h
+++ b/include/drm/drm_displayid.h
@@ -40,6 +40,7 @@
#define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
#define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
#define DATA_BLOCK_TILED_DISPLAY 0x12
+#define DATA_BLOCK_CTA 0x81
#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
@@ -90,4 +91,13 @@ struct displayid_detailed_timing_block {
struct displayid_block base;
struct displayid_detailed_timings_1 timings[0];
};
+
+#define for_each_displayid_db(displayid, block, idx, length) \
+ for ((block) = (struct displayid_block *)&(displayid)[idx]; \
+ (idx) + sizeof(struct displayid_block) <= (length) && \
+ (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
+ (block)->num_bytes > 0; \
+ (idx) += (block)->num_bytes + sizeof(struct displayid_block), \
+ (block) = (struct displayid_block *)&(displayid)[idx])
+
#endif