Add a read-only TYPE property. The TYPE specifies the colorop
type, such as enumerated curve, 1D LUT, CTM, 3D LUT, PWL LUT,
etc.
v4:
- Use enum property for TYPE (Pekka)
v3:
- Make TYPE a range property
- Move enum drm_colorop_type to uapi header
- Fix drm_get_colorop_type_name description
For now we're only introducing an enumerated 1D LUT type to
illustrate the concept.
Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
---
drivers/gpu/drm/drm_atomic.c | 4 +--
drivers/gpu/drm/drm_atomic_uapi.c | 8 +++++-
drivers/gpu/drm/drm_colorop.c | 44 ++++++++++++++++++++++++++++++-
include/drm/drm_colorop.h | 17 +++++++++++-
include/uapi/drm/drm_mode.h | 4 +++
5 files changed, 72 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 62e87e6a9653..b400e32c9d39 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -634,8 +634,8 @@ drm_atomic_get_colorop_state(struct drm_atomic_state *state,
state->colorops[index].new_state = colorop_state;
colorop_state->state = state;
- drm_dbg_atomic(colorop->dev, "Added [COLOROP:%d] %p state to %p\n",
- colorop->base.id, colorop_state, state);
+ drm_dbg_atomic(colorop->dev, "Added [COLOROP:%d:%d] %p state to %p\n",
+ colorop->base.id, colorop->type, colorop_state, state);
return colorop_state;
}
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 1f9b6dfa8ca7..e3067c095c72 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -660,7 +660,13 @@ drm_atomic_colorop_get_property(struct drm_colorop *colorop,
const struct drm_colorop_state *state,
struct drm_property *property, uint64_t *val)
{
- return -EINVAL;
+ if (property == colorop->type_property) {
+ *val = colorop->type;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
}
static int drm_atomic_set_writeback_fb_for_connector(
diff --git a/drivers/gpu/drm/drm_colorop.c b/drivers/gpu/drm/drm_colorop.c
index a295ab96aee1..3a07a8fe2842 100644
--- a/drivers/gpu/drm/drm_colorop.c
+++ b/drivers/gpu/drm/drm_colorop.c
@@ -32,12 +32,17 @@
/* TODO big colorop doc, including properties, etc. */
+static const struct drm_prop_enum_list drm_colorop_type_enum_list[] = {
+ { DRM_COLOROP_1D_CURVE, "1D Curve" },
+};
+
/* Init Helpers */
int drm_colorop_init(struct drm_device *dev, struct drm_colorop *colorop,
- struct drm_plane *plane)
+ struct drm_plane *plane, enum drm_colorop_type type)
{
struct drm_mode_config *config = &dev->mode_config;
+ struct drm_property *prop;
int ret = 0;
ret = drm_mode_object_add(dev, &colorop->base, DRM_MODE_OBJECT_COLOROP);
@@ -46,12 +51,29 @@ int drm_colorop_init(struct drm_device *dev, struct drm_colorop *colorop,
colorop->base.properties = &colorop->properties;
colorop->dev = dev;
+ colorop->type = type;
colorop->plane = plane;
list_add_tail(&colorop->head, &config->colorop_list);
colorop->index = config->num_colorop++;
/* add properties */
+
+ /* type */
+ prop = drm_property_create_enum(dev,
+ DRM_MODE_PROP_IMMUTABLE,
+ "TYPE", drm_colorop_type_enum_list,
+ ARRAY_SIZE(drm_colorop_type_enum_list));
+
+ if (!prop)
+ return -ENOMEM;
+
+ colorop->type_property = prop;
+
+ drm_object_attach_property(&colorop->base,
+ colorop->type_property,
+ colorop->type);
+
return ret;
}
EXPORT_SYMBOL(drm_colorop_init);
@@ -150,3 +172,23 @@ void drm_colorop_reset(struct drm_colorop *colorop)
__drm_colorop_reset(colorop, colorop->state);
}
EXPORT_SYMBOL(drm_colorop_reset);
+
+
+static const char * const colorop_type_name[] = {
+ [DRM_COLOROP_1D_CURVE] = "1D Curve",
+};
+
+/**
+ * drm_get_colorop_type_name - return a string for colorop type
+ * @type: colorop type to compute name of
+ *
+ * In contrast to the other drm_get_*_name functions this one here returns a
+ * const pointer and hence is threadsafe.
+ */
+const char *drm_get_colorop_type_name(enum drm_colorop_type type)
+{
+ if (WARN_ON(type >= ARRAY_SIZE(colorop_type_name)))
+ return "unknown";
+
+ return colorop_type_name[type];
+}
diff --git a/include/drm/drm_colorop.h b/include/drm/drm_colorop.h
index e611f830f986..cb98c55f8387 100644
--- a/include/drm/drm_colorop.h
+++ b/include/drm/drm_colorop.h
@@ -103,6 +103,21 @@ struct drm_colorop {
/** @properties: property tracking for this plane */
struct drm_object_properties properties;
+ /**
+ * @type:
+ *
+ * Read-only
+ * Type of color operation
+ */
+ enum drm_colorop_type type;
+
+ /**
+ * @type_property:
+ *
+ * Read-only "TYPE" property for specifying the type of
+ * this color operation. The type is enum drm_colorop_type.
+ */
+ struct drm_property *type_property;
};
#define obj_to_colorop(x) container_of(x, struct drm_colorop, base)
@@ -127,7 +142,7 @@ static inline struct drm_colorop *drm_colorop_find(struct drm_device *dev,
}
int drm_colorop_init(struct drm_device *dev, struct drm_colorop *colorop,
- struct drm_plane *plane);
+ struct drm_plane *plane, enum drm_colorop_type type);
struct drm_colorop_state *
drm_atomic_helper_colorop_duplicate_state(struct drm_colorop *colorop);
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 9e8f383935db..0cbd6bef52bc 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -866,6 +866,10 @@ struct drm_color_lut {
__u16 reserved;
};
+enum drm_colorop_type {
+ DRM_COLOROP_1D_CURVE
+};
+
/**
* struct hdr_metadata_infoframe - HDR Metadata Infoframe Data.
*
--
2.44.0
