From 5ea22f24d77b511d68c4ecaf4e6fd5d6ab462b8f Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Fri, 30 May 2014 11:34:01 -0400 Subject: drm: add extended property types If we continue to use bitmask for type, we will quickly run out of room to add new types. Split this up so existing part of bitmask range continues to function as before, but reserve a chunk of the remaining space for an integer type-id. Wrap this all up in some type-check helpers to keep the backwards-compat uglyness contained. Signed-off-by: Rob Clark Reviewed-by: Daniel Vetter --- include/uapi/drm/drm_mode.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/uapi/drm/drm_mode.h') diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 719add464f95..caeaa6f7ebde 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -252,6 +252,19 @@ struct drm_mode_get_connector { #define DRM_MODE_PROP_BLOB (1<<4) #define DRM_MODE_PROP_BITMASK (1<<5) /* bitmask of enumerated types */ +/* non-extended types: legacy bitmask, one bit per type: */ +#define DRM_MODE_PROP_LEGACY_TYPE ( \ + DRM_MODE_PROP_RANGE | \ + DRM_MODE_PROP_ENUM | \ + DRM_MODE_PROP_BLOB | \ + DRM_MODE_PROP_BITMASK) + +/* extended-types: rather than continue to consume a bit per type, + * grab a chunk of the bits to use as integer type id. + */ +#define DRM_MODE_PROP_EXTENDED_TYPE 0x0000ffc0 +#define DRM_MODE_PROP_TYPE(n) ((n) << 6) + struct drm_mode_property_enum { __u64 value; char name[DRM_PROP_NAME_LEN]; -- cgit v1.2.2