From patchwork Tue Nov 27 10:43:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10700113 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A4D9C13AD for ; Tue, 27 Nov 2018 10:47:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 933F827EED for ; Tue, 27 Nov 2018 10:47:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8782B286F6; Tue, 27 Nov 2018 10:47:29 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 388CD28741 for ; Tue, 27 Nov 2018 10:47:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CB2D96E0DB; Tue, 27 Nov 2018 10:47:27 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7AAF86E0D9; Tue, 27 Nov 2018 10:47:23 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2018 02:47:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,286,1539673200"; d="scan'208";a="95577539" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 27 Nov 2018 02:47:21 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com Date: Tue, 27 Nov 2018 16:13:01 +0530 Message-Id: <1543315413-24302-4-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1543315413-24302-1-git-send-email-ramalingam.c@intel.com> References: <1543315413-24302-1-git-send-email-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v8 03/35] linux/mei: Header for mei_hdcp driver interface X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Data structures and Enum for the I915-MEI_HDCP interface are defined at v2: Rebased. v3: mei_cl_device is removed from mei_hdcp_data [Tomas] v4: Comment style and typo fixed [Uma] v5: Rebased. v6: No changes. v7: Remove redundant text from the License header Change uintXX_t type to uXX_t types Remove unneeded include to mei_cl_bus.h Coding style fixed [Uma] V8: Tab cleanup Fix kdoc and namespaces Update MAINTAINERS Signed-off-by: Ramalingam C Signed-off-by: Tomas Winkler Reviewed-by: Uma Shankar Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> --- MAINTAINERS | 1 + include/linux/mei_hdcp.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 92 insertions(+) create mode 100644 include/linux/mei_hdcp.h diff --git a/MAINTAINERS b/MAINTAINERS index 1026150ae90f..2fd6555bf040 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7540,6 +7540,7 @@ L: linux-kernel@vger.kernel.org S: Supported F: include/uapi/linux/mei.h F: include/linux/mei_cl_bus.h +F: include/linux/mei_hdcp.h F: drivers/misc/mei/* F: drivers/watchdog/mei_wdt.c F: Documentation/misc-devices/mei/* diff --git a/include/linux/mei_hdcp.h b/include/linux/mei_hdcp.h new file mode 100644 index 000000000000..716123003dd1 --- /dev/null +++ b/include/linux/mei_hdcp.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ +/* + * Copyright © 2017-2018 Intel Corporation + * + * Authors: + * Ramalingam C + */ + +#ifndef _LINUX_MEI_HDCP_H +#define _LINUX_MEI_HDCP_H + +/** + * enum mei_hdcp_ddi - The physical digital display interface (DDI) + * available on the platform + * @MEI_DDI_INVALID_PORT: Not a valid port + * @MEI_DDI_RANGE_BEGIN: Beginning of the valid DDI port range + * @MEI_DDI_B: Port DDI B + * @MEI_DDI_C: Port DDI C + * @MEI_DDI_D: Port DDI D + * @MEI_DDI_E: Port DDI E + * @MEI_DDI_F: Port DDI F + * @MEI_DDI_A: Port DDI A + * @MEI_DDI_RANGE_END: End of the valid DDI port range + */ +enum mei_hdcp_ddi { + MEI_DDI_INVALID_PORT = 0x00, + + MEI_DDI_RANGE_BEGIN = 0x01, + MEI_DDI_B = 0x01, + MEI_DDI_C = 0x02, + MEI_DDI_D = 0x03, + MEI_DDI_E = 0x04, + MEI_DDI_F = 0x05, + MEI_DDI_A = 0x07, + MEI_DDI_RANGE_END = MEI_DDI_A, +}; + +/** + * enum mei_hdcp_port_type - The types of HDCP 2.2 ports supported + * + * @MEI_HDCP_PORT_TYPE_INVALID: Invalid port + * @MEI_HDCP_PORT_TYPE_INTEGRATED: ports that are integrated into Intel HW + * @MEI_HDCP_PORT_TYPE_LSPCON: discrete wired Tx port with LSPCON (HDMI 2.0) + * @MEI_HDCP_PORT_TYPE_CPDP: discrete wired Tx port using the CPDP (DP 1.3) + */ +enum mei_hdcp_port_type { + MEI_HDCP_PORT_TYPE_INVALID = 0x00, + MEI_HDCP_PORT_TYPE_INTEGRATED = 0x01, + MEI_HDCP_PORT_TYPE_LSPCON = 0x02, + MEI_HDCP_PORT_TYPE_CPDP = 0x03, +}; + +/* + * enum mei_hdcp_wired_protocol - Supported integrated wired HDCP protocol. + * @HDCP_PROTOCOL_INVALID: invalid type + * @HDCP_PROTOCOL_HDMI: HDMI + * @HDCP_PROTOCOL_DP: DP + * + * Based on this value, Minor difference needed between wired specifications + * are handled. + */ +enum mei_hdcp_wired_protocol { + MEI_HDCP_PROTOCOL_INVALID, + MEI_HDCP_PROTOCOL_HDMI, + MEI_HDCP_PROTOCOL_DP +}; + +/** + * struct mei_hdcp_data - Input data to the mei_hdcp APIs + * @port: The physical port (ddi). + * @port_type: The port type. + * @protocol: The Protocol on the port. + * @k: Number of streams transmitted on the port. + * In case of HDMI & DP SST, a single stream will be + * transmitted on the port. + * @seq_num_m: A sequence number of RepeaterAuth_Stream_Manage msg propagated. + * Initialized to 0 on AKE_INIT. Incremented after every successful + * transmission of RepeaterAuth_Stream_Manage message. When it rolls + * over re-Auth has to be triggered. + * @streams: array[k] of streamid + */ +struct mei_hdcp_data { + enum mei_hdcp_ddi port; + enum mei_hdcp_port_type port_type; + enum mei_hdcp_wired_protocol protocol; + u16 k; + u32 seq_num_m; + struct hdcp2_streamid_type *streams; +}; + +#endif /* !_LINUX_MEI_HDCP_H */