From patchwork Tue Aug 8 13:30:10 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 9888243 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 BC7AF60363 for ; Tue, 8 Aug 2017 13:34:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AE30A28724 for ; Tue, 8 Aug 2017 13:34:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A33CA28859; Tue, 8 Aug 2017 13:34:18 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E8C42886D for ; Tue, 8 Aug 2017 13:34:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752188AbdHHNd1 (ORCPT ); Tue, 8 Aug 2017 09:33:27 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:40312 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752387AbdHHNa6 (ORCPT ); Tue, 8 Aug 2017 09:30:58 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 145524F88E; Tue, 8 Aug 2017 16:30:53 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, hans.verkuil@cisco.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 v4 13/21] doc: media/v4l-drivers: Qualcomm Camera Subsystem - PIX Interface Date: Tue, 8 Aug 2017 16:30:10 +0300 Message-Id: <1502199018-28250-14-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> References: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 | 46 ++++++++++++++++++++------ 1 file changed, 36 insertions(+), 10 deletions(-) diff --git a/Documentation/media/v4l-drivers/qcom_camss.rst b/Documentation/media/v4l-drivers/qcom_camss.rst index 4707ea7..d888443 100644 --- a/Documentation/media/v4l-drivers/qcom_camss.rst +++ b/Documentation/media/v4l-drivers/qcom_camss.rst @@ -45,12 +45,36 @@ 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 - V4L2_PIX_FMT_YUYV / + V4L2_PIX_FMT_UYVY / V4L2_PIX_FMT_YVYU / V4L2_PIX_FMT_VYUY); + - MIPI RAW8 (8bit Bayer RAW - V4L2_PIX_FMT_SRGGB8 / + V4L2_PIX_FMT_SGRBG8 / V4L2_PIX_FMT_SGBRG8 / V4L2_PIX_FMT_SBGGR8); + - MIPI RAW10 (10bit packed Bayer RAW - V4L2_PIX_FMT_SBGGR10P / + V4L2_PIX_FMT_SGBRG10P / V4L2_PIX_FMT_SGRBG10P / V4L2_PIX_FMT_SRGGB10P); + - MIPI RAW12 (12bit packed Bayer RAW - V4L2_PIX_FMT_SRGGB12P / + V4L2_PIX_FMT_SGBRG12P / V4L2_PIX_FMT_SGRBG12P / V4L2_PIX_FMT_SRGGB12P). + +- PIX interface of VFE + + - Format conversion of the input data. + + Supported input formats: + + - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2 - V4L2_PIX_FMT_YUYV / + V4L2_PIX_FMT_UYVY / V4L2_PIX_FMT_YVYU / V4L2_PIX_FMT_VYUY). + + Supported output formats: + + - NV12/NV21 (two plane YUV 4:2:0 - V4L2_PIX_FMT_NV12 / V4L2_PIX_FMT_NV21); + - NV16/NV61 (two plane YUV 4:2:2 - V4L2_PIX_FMT_NV16 / V4L2_PIX_FMT_NV61). + +- Concurrent and independent usage of two data inputs - could be camera sensors and/or TG. @@ -65,15 +89,15 @@ 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 +123,8 @@ nodes) is as follows: - msm_vfe0_video1 - msm_vfe0_rdi2 - msm_vfe0_video2 +- msm_vfe0_pix +- msm_vfe0_video3 Implementation