From patchwork Wed Jul 12 08:28:54 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 9836267 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 33BA060393 for ; Wed, 12 Jul 2017 08:30:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 263711FF2D for ; Wed, 12 Jul 2017 08:30:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1B3CE284FF; Wed, 12 Jul 2017 08:30:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D4A7E1FF2D for ; Wed, 12 Jul 2017 08:30:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E7F2F6E3D1; Wed, 12 Jul 2017 08:29:46 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 67AE16E3CA; Wed, 12 Jul 2017 08:29:45 +0000 (UTC) Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jul 2017 01:29:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,349,1496127600"; d="scan'208";a="126135075" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by fmsmga006.fm.intel.com with ESMTP; 12 Jul 2017 01:29:42 -0700 From: Ramalingam C To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, daniel.vetter@intel.com Subject: [RFC v1 10/20] drm/hdcp: Handler for connector state change Date: Wed, 12 Jul 2017 13:58:54 +0530 Message-Id: <1499848144-8456-11-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1499848144-8456-1-git-send-email-ramalingam.c@intel.com> References: <1499848144-8456-1-git-send-email-ramalingam.c@intel.com> Cc: Ramalingam C , uma.shankar@intel.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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 --- 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<