[PATCH 2/5] drm/displayid: add DisplayID v2.0 data blocks and primary use cases

Jani Nikula jani.nikula at intel.com
Mon Aug 30 10:29:00 UTC 2021


DisplayID v2.0 changes the data block identifiers and product types (now
called primary use cases).

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 include/drm/drm_displayid.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
index 0ed9445b5482..79771091771a 100644
--- a/include/drm/drm_displayid.h
+++ b/include/drm/drm_displayid.h
@@ -26,6 +26,10 @@
 
 struct edid;
 
+/* DisplayID Structure versions */
+#define DISPLAY_ID_STRUCTURE_VER_12		0x12
+#define DISPLAY_ID_STRUCTURE_VER_20		0x20
+
 /* DisplayID Structure v1r2 Data Blocks */
 #define DATA_BLOCK_PRODUCT_ID			0x00
 #define DATA_BLOCK_DISPLAY_PARAMETERS		0x01
@@ -48,6 +52,20 @@ struct edid;
 #define DATA_BLOCK_VENDOR_SPECIFIC		0x7f
 #define DATA_BLOCK_CTA				0x81
 
+/* DisplayID Structure v2r0 Data Blocks */
+#define DATA_BLOCK_2_PRODUCT_ID			0x20
+#define DATA_BLOCK_2_DISPLAY_PARAMETERS		0x21
+#define DATA_BLOCK_2_TYPE_7_DETAILED_TIMING	0x22
+#define DATA_BLOCK_2_TYPE_8_ENUMERATED_TIMING	0x23
+#define DATA_BLOCK_2_TYPE_9_FORMULA_TIMING	0x24
+#define DATA_BLOCK_2_DYNAMIC_VIDEO_TIMING	0x25
+#define DATA_BLOCK_2_DISPLAY_INTERFACE_FEATURES	0x26
+#define DATA_BLOCK_2_STEREO_DISPLAY_INTERFACE	0x27
+#define DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY	0x28
+#define DATA_BLOCK_2_CONTAINER_ID		0x29
+#define DATA_BLOCK_2_VENDOR_SPECIFIC		0x7e
+#define DATA_BLOCK_2_CTA_DISPLAY_ID		0x81
+
 /* DisplayID Structure v1r2 Product Type */
 #define PRODUCT_TYPE_EXTENSION			0
 #define PRODUCT_TYPE_TEST			1
@@ -57,6 +75,17 @@ struct edid;
 #define PRODUCT_TYPE_REPEATER			5
 #define PRODUCT_TYPE_DIRECT_DRIVE		6
 
+/* DisplayID Structure v2r0 Display Product Primary Use Case (~Product Type) */
+#define PRIMARY_USE_EXTENSION			0
+#define PRIMARY_USE_TEST			1
+#define PRIMARY_USE_GENERIC			2
+#define PRIMARY_USE_TV				3
+#define PRIMARY_USE_DESKTOP_PRODUCTIVITY	4
+#define PRIMARY_USE_DESKTOP_GAMING		5
+#define PRIMARY_USE_PRESENTATION		6
+#define PRIMARY_USE_HEAD_MOUNTED_VR		7
+#define PRIMARY_USE_HEAD_MOUNTED_AR		8
+
 struct displayid_header {
 	u8 rev;
 	u8 bytes;
-- 
2.20.1



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