aboutsummaryrefslogtreecommitdiff
path: root/include/backend/drm/properties.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/backend/drm/properties.h')
-rw-r--r--include/backend/drm/properties.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/backend/drm/properties.h b/include/backend/drm/properties.h
new file mode 100644
index 00000000..b4d43bdd
--- /dev/null
+++ b/include/backend/drm/properties.h
@@ -0,0 +1,72 @@
+#ifndef BACKEND_DRM_PROPERTIES_H
+#define BACKEND_DRM_PROPERTIES_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/*
+ * These types contain the property ids for several DRM objects.
+ * See https://01.org/linuxgraphics/gfx-docs/drm/gpu/drm-kms.html#kms-properties
+ * for more details.
+ */
+
+union wlr_drm_connector_props {
+ struct {
+ uint32_t edid;
+ uint32_t dpms;
+ uint32_t link_status; // not guaranteed to exist
+ uint32_t path;
+
+ // atomic-modesetting only
+
+ uint32_t crtc_id;
+ };
+ uint32_t props[4];
+};
+
+union wlr_drm_crtc_props {
+ struct {
+ // Neither of these are guaranteed to exist
+ uint32_t rotation;
+ uint32_t scaling_mode;
+
+ // atomic-modesetting only
+
+ uint32_t active;
+ uint32_t mode_id;
+ uint32_t gamma_lut;
+ uint32_t gamma_lut_size;
+ };
+ uint32_t props[6];
+};
+
+union wlr_drm_plane_props {
+ struct {
+ uint32_t type;
+ uint32_t rotation; // Not guaranteed to exist
+
+ // atomic-modesetting only
+
+ uint32_t src_x;
+ uint32_t src_y;
+ uint32_t src_w;
+ uint32_t src_h;
+ uint32_t crtc_x;
+ uint32_t crtc_y;
+ uint32_t crtc_w;
+ uint32_t crtc_h;
+ uint32_t fb_id;
+ uint32_t crtc_id;
+ };
+ uint32_t props[12];
+};
+
+bool get_drm_connector_props(int fd, uint32_t id,
+ union wlr_drm_connector_props *out);
+bool get_drm_crtc_props(int fd, uint32_t id, union wlr_drm_crtc_props *out);
+bool get_drm_plane_props(int fd, uint32_t id, union wlr_drm_plane_props *out);
+
+bool get_drm_prop(int fd, uint32_t obj, uint32_t prop, uint64_t *ret);
+void *get_drm_prop_blob(int fd, uint32_t obj, uint32_t prop, size_t *ret_len);
+
+#endif