From patchwork Mon Jul 17 10:33:41 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 107887 Delivered-To: patch@linaro.org Received: by 10.140.101.44 with SMTP id t41csp4341123qge; Mon, 17 Jul 2017 03:36:03 -0700 (PDT) X-Received: by 10.84.232.7 with SMTP id h7mr29668979plk.193.1500287763582; Mon, 17 Jul 2017 03:36:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1500287763; cv=none; d=google.com; s=arc-20160816; b=ozbkMAX1Gp4UBQgVgcuKbWJCfMkahij8ZqnymAkPcvQ9vL96h1yJY3zUFhTIs5kHF2 bjyjD0la1cFMsUOQkF7iqrHkvVWc9YU+/N0dp3yKpdMsWc1v2t2d3bxu39GzSMrcVmMI A5Rr2Zrjd4sGD6CWzRsW49wlFesLyt0LVrzHfaoUQOMQ6M3bNeub/3jtVaZ5A9HMz9XI OIFlHr9PCzITPR7Burr1w84fuE8JNl7F1ttBDq+quJePKVIthn6SxKcyu49YiihRNczO 1t2r1HsI2ZFeTTLJ7UBfMkUIFb5XmS3rzxU93YpXrz3V78RUs6qZS4dSqxl3W05SfREg pFLA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=2hgtaeRMVx3hjG0Qfg66ushSvLs/vo8jh24inXgF4Io=; b=UOmQBV0qfO0wNcPdql8Q/AM/eCCQ9glBTm4y0ES3sT035aUiJVEka7tf7PTZiqCIgw KUXrgnihTg2hb1/beyEKB8dBgOO9A/7U7ofGscPVPOwp5JO77/+XnGSBNvIdA7ZmebUU IOtmrVUodYjsBWHBMlxuw8wixr15q6JyRGwEqYa8DDh9nHMTK1vxQpv0dctF9FbxNEJu lFn+8bkCkxgibcY1QPO1f58l7+3IGmfsNZ4gf89kF5ss1yxeNsZIoDJ85EOVcPCGR6FY t4IpKgbC/bOp9DTIBWzmMn1j4AMsyK/73b/D4qlH0j2M3icNq7gyPWurXSmwh0tJkwZ2 4PfA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n25si12653pfe.210.2017.07.17.03.36.03; Mon, 17 Jul 2017 03:36:03 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751458AbdGQKfM (ORCPT + 25 others); Mon, 17 Jul 2017 06:35:12 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:36069 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396AbdGQKfF (ORCPT ); Mon, 17 Jul 2017 06:35:05 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 0A7F8CBEF; Mon, 17 Jul 2017 13:34:59 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, hans.verkuil@cisco.com, javier@osg.samsung.com, s.nawrocki@samsung.com, sakari.ailus@iki.fi, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: Todor Tomov Subject: [PATCH v3 15/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - PIX Interface Date: Mon, 17 Jul 2017 13:33:41 +0300 Message-Id: <1500287629-23703-16-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500287629-23703-1-git-send-email-todor.tomov@linaro.org> References: <1500287629-23703-1-git-send-email-todor.tomov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Update Qualcomm Camera Subsystem driver document for the PIX interface and format conversion support. Signed-off-by: Todor Tomov --- Documentation/media/v4l-drivers/qcom_camss.rst | 41 +++++++++++++++++++------- 1 file changed, 31 insertions(+), 10 deletions(-) -- 2.7.4 diff --git a/Documentation/media/v4l-drivers/qcom_camss.rst b/Documentation/media/v4l-drivers/qcom_camss.rst index 4707ea7..4df5655 100644 --- a/Documentation/media/v4l-drivers/qcom_camss.rst +++ b/Documentation/media/v4l-drivers/qcom_camss.rst @@ -45,12 +45,31 @@ Supported functionality The current version of the driver supports: -- input from camera sensor via CSIPHY; -- generation of test input data by the TG in CSID; -- raw dump of the input data to memory. RDI interface of VFE is supported. - PIX interface (ISP processing, statistics engines, resize/crop, format - conversion) is not supported in the current version; -- concurrent and independent usage of two data inputs - could be camera sensors +- Input from camera sensor via CSIPHY; +- Generation of test input data by the TG in CSID; +- RDI interface of VFE - raw dump of the input data to memory. + + Supported formats: + + - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2); + - MIPI RAW8 (8bit Bayer RAW); + - MIPI RAW10 (10bit packed Bayer RAW); + - MIPI RAW12 (12bit packed Bayer RAW). + +- PIX interface of VFE + + - Format conversion of the input data. + + Supported input formats: + + - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2). + + Supported output formats: + + - NV12/NV21 (two plane YUV 4:2:0); + - NV16/NV61 (two plane YUV 4:2:2). + +- Concurrent and independent usage of two data inputs - could be camera sensors and/or TG. @@ -65,15 +84,15 @@ interface, the driver is split into V4L2 sub-devices as follows: - 2 CSID sub-devices - each CSID is represented by a single sub-device; - 2 ISPIF sub-devices - ISPIF is represented by a number of sub-devices equal to the number of CSID sub-devices; -- 3 VFE sub-devices - VFE is represented by a number of sub-devices equal to - the number of RDI input interfaces. +- 4 VFE sub-devices - VFE is represented by a number of sub-devices equal to + the number of the input interfaces (3 RDI and 1 PIX). The considerations to split the driver in this particular way are as follows: - representing CSIPHY and CSID modules by a separate sub-device for each module allows to model the hardware links between these modules; -- representing VFE by a separate sub-devices for each RDI input interface allows - to use the three RDI interfaces concurently and independently as this is +- representing VFE by a separate sub-devices for each input interface allows + to use the input interfaces concurently and independently as this is supported by the hardware; - representing ISPIF by a number of sub-devices equal to the number of CSID sub-devices allows to create linear media controller pipelines when using two @@ -99,6 +118,8 @@ nodes) is as follows: - msm_vfe0_video1 - msm_vfe0_rdi2 - msm_vfe0_video2 +- msm_vfe0_pix +- msm_vfe0_video3 Implementation