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From: Ramalingam C <ramalingam.c@intel.com>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
	daniel.vetter@intel.com
Cc: Ramalingam C <ramalingam.c@intel.com>, uma.shankar@intel.com
Subject: [RFC v1 10/20] drm/hdcp: Handler for connector state change
Date: Wed, 12 Jul 2017 13:58:54 +0530	[thread overview]
Message-ID: <1499848144-8456-11-git-send-email-ramalingam.c@intel.com> (raw)
In-Reply-To: <1499848144-8456-1-git-send-email-ramalingam.c@intel.com>

On hotplug/detection of connector Panel's HDCP capability is probed.
On hot unplug of connector HDCP is diabled, if it has beed enabled.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
 drivers/gpu/drm/drm_hdcp.c | 24 ++++++++++++++++++++++++
 include/drm/drm_hdcp.h     |  9 +++++++++
 2 files changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c
index ab80370..89c7c5e 100644
--- a/drivers/gpu/drm/drm_hdcp.c
+++ b/drivers/gpu/drm/drm_hdcp.c
@@ -82,6 +82,30 @@ void drm_hdcp_late_init(struct drm_connector *connector)
 }
 
 /**
+ * @drm_hdcp_connector_state_change_handler:
+ *
+ * Handler for the Connector state change.
+ */
+void drm_hdcp_connector_state_change_handler(struct drm_connector *connector)
+{
+	if (!connector->hdcp)
+		return;
+
+	if (connector->status == connector_status_connected) {
+
+		/* Probes the panel capability */
+		drm_hdcp_late_init(connector);
+	} else {
+		drm_hdcp_disable(connector);
+		connector->hdcp->ver_support_on_panel = 0;
+
+		/* Removing support for all versions */
+		connector->hdcp_state &= ~DRM_HDCP_VER_SUPPORT_MASK;
+	}
+}
+EXPORT_SYMBOL(drm_hdcp_connector_state_change_handler);
+
+/**
  * @drm_hdcp_init:
  *	Initialization of the HDCP stack of the DRM
  *
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index e8136ef..89879ff 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -157,8 +157,17 @@ struct drm_hdcp {
 					DRM_HDCP_LINK_INTEGRITY_FAILED | \
 					DRM_HDCP_REAUTH_REQUESTED)
 
+#define DRM_HDCP_VER_SUPPORT_SHIFT		12
+#define DRM_HDCP_VER_SUPPORT_MASK		(0xFFULL<< \
+						DRM_HDCP_VER_SUPPORT_SHIFT)
+#define DRM_HDCP_TYPE_SHIFT			4
+#define DRM_HDCP_TYPE_MASK			(0xFFULL<<DRM_HDCP_TYPE_SHIFT)
+
 /* Functions exported */
 extern int drm_hdcp_init(struct drm_connector *connector,
 					struct drm_hdcp *hdcp,
 					uint8_t spec_supported);
+extern void drm_hdcp_connector_state_change_handler(
+				struct drm_connector *connector);
+
 #endif	/* __DRM_HDCP_H__ */
-- 
2.7.4

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  parent reply	other threads:[~2017-07-12  8:28 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-12  8:28 [RFC v1 00/20] DRM Interfaces for HDCP support Ramalingam C
2017-07-12  8:28 ` [RFC v1 01/20] drm/hdcp: HDCP bitmask property for connectors Ramalingam C
2017-07-12  9:54   ` Daniel Vetter
2017-07-12 14:56     ` [Intel-gfx] " Ramalingam C
2017-07-12 19:10       ` Sean Paul
2017-07-13  6:09         ` Daniel Vetter
2017-07-13  6:54           ` Ramalingam C
2017-07-13  8:45             ` Daniel Vetter
2017-07-13 10:15               ` [Intel-gfx] " Ramalingam C
2017-07-13 10:36                 ` Daniel Vetter
2017-07-13 12:59                   ` Ramalingam C
2017-07-13 19:02                     ` [Intel-gfx] " Daniel Vetter
2017-07-14 10:40                       ` Ramalingam C
2017-07-14 11:21                         ` [RFC v2] drm/hdcp: drm enum property for HDCP State Ramalingam C
2017-07-14 13:55                           ` Sean Paul
2017-07-21 13:02                             ` Ramalingam C
2017-07-24 13:23                               ` Sean Paul
2017-07-24 13:34                                 ` Ramalingam C
2017-07-24 18:12                                 ` [RFC v3] drm/hdcp: drm enum property for CP State Ramalingam C
2017-07-25 12:34                                   ` Sean Paul
2017-07-26  9:54                                     ` Ramalingam C
2017-07-26 14:52                                       ` Sean Paul
2017-07-26 16:51                                         ` C, Ramalingam
2017-07-26 17:54                                           ` Sean Paul
2017-08-02 15:32                                             ` Ramalingam C
2017-08-02 15:53                                               ` [RFC v4] " Ramalingam C
2017-08-05 15:51                                                 ` Ramalingam C
2017-08-07  5:32                                                   ` Ramalingam C
2017-07-13  6:36         ` [Intel-gfx] [RFC v1 01/20] drm/hdcp: HDCP bitmask property for connectors Ramalingam C
2017-07-12  8:28 ` [RFC v1 02/20] drm/hdcp: HDCP SRM blob " Ramalingam C
2017-07-12  8:28 ` [RFC v1 03/20] drm/sysfs: Generate drm uevent with custom string Ramalingam C
2017-07-12  8:28 ` [RFC v1 04/20] drm/hdcp: Struct drm_hdcp for connector's hdcp state Ramalingam C
2017-07-12  8:28 ` [RFC v1 05/20] drm/hdcp: HDCP status code for DRM HDCP stack Ramalingam C
2017-07-12  8:28 ` [RFC v1 06/20] drm/hdcp: display driver callback funcs defined Ramalingam C
2017-07-12  8:28 ` [RFC v1 07/20] drm/hdcp: Initialization of DRM hdcp stack Ramalingam C
2017-07-12  8:28 ` [RFC v1 08/20] drm/hdcp: Add KBuild for DRM HDCP support Ramalingam C
2017-07-12  8:28 ` [RFC v1 09/20] drm/hdcp: Generic enable, disable and late_init Ramalingam C
2017-07-12  8:28 ` Ramalingam C [this message]
2017-07-12  8:28 ` [RFC v1 11/20] drm/hdcp: Registering for connector state change Ramalingam C
2017-07-12  8:28 ` [RFC v1 12/20] drm/hdcp: Atomic set and get property for hdcp Ramalingam C
2017-07-12  8:28 ` [RFC v1 13/20] drm/hdcp: Updating DRM Property val with HDCP state Ramalingam C
2017-07-12  8:28 ` [RFC v1 14/20] drm/hdcp2.2: HDCP2.2 protocol msg definitions Ramalingam C
2017-07-12  8:28 ` [RFC v1 15/20] drm/hdcp2.2: Display driver service functions Ramalingam C
2017-07-12  8:29 ` [RFC v1 16/20] drm/hdcp2.2: HDCP2.2 Initialization Ramalingam C
2017-07-12  8:29 ` [RFC v1 17/20] drm/hdcp2.2: Definitions of HDMI HDCP2.2 registers Ramalingam C
2017-07-12  8:29 ` [RFC v1 18/20] drm/hdcp2.2: Late_init: Capability probing on panel Ramalingam C
2017-07-12  8:29 ` [RFC v1 19/20] drm/hdcp2.2: HDCP2.2 enable as a asynchronous work Ramalingam C
2017-07-12  8:29 ` [RFC v1 20/20] drm/hdcp2.2: HDCP2.2 disable " Ramalingam C

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