DRM connector property is created to represent the content protection
state of the connector and to configure the same.
CP States defined:
DRM_CP_UNSUPPORTED - CP is not supported
DRM_CP_DISABLE - CP is disabled
DRM_CP_ENABLE - CP is enabled
V2: Redesigned the property to match with CP needs of CrOS.
Signed-off-by: Ramalingam C <ramalinga...@intel.com>
---
drivers/gpu/drm/drm_connector.c | 14 +++++++++++++
include/drm/drm_hdcp.h | 44 +++++++++++++++++++++++++++++++++++++++++
include/drm/drm_mode_config.h | 5 +++++
3 files changed, 63 insertions(+)
create mode 100644 include/drm/drm_hdcp.h
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 5cd61af..64895fb 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -24,6 +24,7 @@
#include <drm/drm_connector.h>
#include <drm/drm_edid.h>
#include <drm/drm_encoder.h>
+#include <drm/drm_hdcp.h>
#include "drm_crtc_internal.h"
#include "drm_internal.h"
@@ -617,6 +618,13 @@ static const struct drm_prop_enum_list
drm_link_status_enum_list[] = {
};
DRM_ENUM_NAME_FN(drm_get_link_status_name, drm_link_status_enum_list)
+static const struct drm_prop_enum_list drm_cp_enum_list[] = {
+ { DRM_CP_UNSUPPORTED, "CP Not Supported" },
+ { DRM_CP_DISABLE, "Disable CP" },
+ { DRM_CP_ENABLE, "Enable CP for Type0 content" },
+};
+DRM_ENUM_NAME_FN(drm_get_cp_status_name, drm_cp_enum_list)
+
/**
* drm_display_info_set_bus_formats - set the supported bus formats
* @info: display info to store bus formats in
@@ -789,6 +797,12 @@ int drm_connector_create_standard_properties(struct
drm_device *dev)
return -ENOMEM;
dev->mode_config.link_status_property = prop;
+ prop = drm_property_create_enum(dev, 0, "cp", drm_cp_enum_list,
+ ARRAY_SIZE(drm_cp_enum_list));
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.cp_property = prop;
+
return 0;
}
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
new file mode 100644
index 0000000..f6d0160
--- /dev/null
+++ b/include/drm/drm_hdcp.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2017 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+/*
+ * Header for HDCP specific data
+ */
+
+#ifndef __DRM_HDCP_H__
+#define __DRM_HDCP_H__
+
+/**
+ * CP property related information
+ */
+enum drm_cp_state {
+
+ /* HDCP sink and Src dont have any common HDCP ver supported */
+ DRM_CP_UNSUPPORTED,
+
+ /* Disable Content Protection */
+ DRM_CP_DISABLE,
+
+ /* Enable Content Protection */
+ DRM_CP_ENABLE,
+};
+#endif /* __DRM_HDCP_H__ */
diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h
index 4298171..7acb8b2 100644
--- a/include/drm/drm_mode_config.h
+++ b/include/drm/drm_mode_config.h
@@ -538,6 +538,11 @@ struct drm_mode_config {
*/
struct drm_property *link_status_property;
/**
+ * @cp_property: Default connector property for CP
+ * of a connector
+ */
+ struct drm_property *cp_property;
+ /**
* @plane_type_property: Default plane property to differentiate
* CURSOR, PRIMARY and OVERLAY legacy uses of planes.
*/
--
2.7.4
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