diff options
Diffstat (limited to 'drivers/gpu/drm/drm_hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/drm_hdcp.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index cd837bd409f7..ce235fd1c844 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -344,23 +344,41 @@ static struct drm_prop_enum_list drm_cp_enum_list[] = { }; DRM_ENUM_NAME_FN(drm_get_content_protection_name, drm_cp_enum_list) +static struct drm_prop_enum_list drm_hdcp_content_type_enum_list[] = { + { DRM_MODE_HDCP_CONTENT_TYPE0, "HDCP Type0" }, + { DRM_MODE_HDCP_CONTENT_TYPE1, "HDCP Type1" }, +}; +DRM_ENUM_NAME_FN(drm_get_hdcp_content_type_name, + drm_hdcp_content_type_enum_list) + /** * drm_connector_attach_content_protection_property - attach content protection * property * * @connector: connector to attach CP property on. + * @hdcp_content_type: is HDCP Content Type property needed for connector * * This is used to add support for content protection on select connectors. * Content Protection is intentionally vague to allow for different underlying * technologies, however it is most implemented by HDCP. * + * When hdcp_content_type is true enum property called HDCP Content Type is + * created (if it is not already) and attached to the connector. + * + * This property is used for sending the protected content's stream type + * from userspace to kernel on selected connectors. Protected content provider + * will decide their type of their content and declare the same to kernel. + * + * Content type will be used during the HDCP 2.2 authentication. + * Content type will be set to &drm_connector_state.hdcp_content_type. + * * The content protection will be set to &drm_connector_state.content_protection * * Returns: * Zero on success, negative errno on failure. */ int drm_connector_attach_content_protection_property( - struct drm_connector *connector) + struct drm_connector *connector, bool hdcp_content_type) { struct drm_device *dev = connector->dev; struct drm_property *prop = @@ -377,6 +395,22 @@ int drm_connector_attach_content_protection_property( DRM_MODE_CONTENT_PROTECTION_UNDESIRED); dev->mode_config.content_protection_property = prop; + if (!hdcp_content_type) + return 0; + + prop = dev->mode_config.hdcp_content_type_property; + if (!prop) + prop = drm_property_create_enum(dev, 0, "HDCP Content Type", + drm_hdcp_content_type_enum_list, + ARRAY_SIZE( + drm_hdcp_content_type_enum_list)); + if (!prop) + return -ENOMEM; + + drm_object_attach_property(&connector->base, prop, + DRM_MODE_HDCP_CONTENT_TYPE0); + dev->mode_config.hdcp_content_type_property = prop; + return 0; } EXPORT_SYMBOL(drm_connector_attach_content_protection_property); |