From patchwork Mon Jul 23 11:02:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 142575 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp5909710ljj; Mon, 23 Jul 2018 04:04:29 -0700 (PDT) X-Google-Smtp-Source: AAOMgpdiH65b27qNHgEXlT+UgB0D8cQ4H9s2+e6dQjMk7ZwfmxyXVQ34WIPNbEdO5RLRiWD1jHKR X-Received: by 2002:a17:902:9b81:: with SMTP id y1-v6mr988279plp.239.1532343869613; Mon, 23 Jul 2018 04:04:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532343869; cv=none; d=google.com; s=arc-20160816; b=pkNwLCIeN79AFDQsMFHVD3tyj1w3DFVcArKSJJCNYXiBKG8DnHsIc/jOZ3rYLgD1XQ x6nJPB9UzsMsKi9NwZu+GFLMKGdiPiZ7IOFlO/WCWVBFC6KXfyhuBl/UyXVZoW8BU8qc X0afnPNoi9bHldDmU7Gx7C7c3/SQBpdnXgge5ccOAd+JGPhexfulTfASPxuUlTzLKY4c 8ZsPbDiB2b6/lS2k/OmkForPg3g4+TsWIELbeT0cDIrdPuuZmT44kSozH+PvYOKpEW6s PmY8vtMajWBKCmAVLWgzV3bicvmQjgf8BiUS7sVghFOFW3cCbK5/DTYG/fqK+A2jRymr +ucA== 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=iEnVIt6q6bFljwScfuxuyYhnF0QRe49AH9YzL8RLeWM=; b=p54qfUVKxNrlC4UbdTSb8DKdSsYFO+W/e9fF/IjCLmojWQKnfSjfzchbufDDVQ/rwi vxDfBlwh55l4ckyqnCV3sdmydhrJXMuNmKeannmPKqJnaiaCpxw9qaTXjNsAFR5T4GZU +DlH+cvTyraN2Lj7m1qLhryfMf3bIcl/TRw6/0olTDjNaUGWd0i/AQ8bXdBhPW3ApPrg h8okjtQ662zmL67uSZBg5YHdQ1S9BNzn0M23f4BZntr17+kACRfr8fAIDv5XU+5vt71A nLpdm/6Qhd+y51kcRj5pUNFTNTX4N+aaV7ZayFVJqbt3fh6spWQky1DizPnVYttiSu71 NEbw== 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 3-v6si7878114plc.415.2018.07.23.04.04.29; Mon, 23 Jul 2018 04:04:29 -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 S2388333AbeGWMEv (ORCPT + 31 others); Mon, 23 Jul 2018 08:04:51 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:39964 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388174AbeGWMEu (ORCPT ); Mon, 23 Jul 2018 08:04:50 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 3A646CD70; Mon, 23 Jul 2018 14:04:03 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, sakari.ailus@linux.intel.com, hans.verkuil@cisco.com, laurent.pinchart+renesas@ideasonboard.com, linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Todor Tomov Subject: [PATCH v3 33/35] media: doc: media/v4l-drivers: Update Qualcomm CAMSS driver document for 8x96 Date: Mon, 23 Jul 2018 14:02:50 +0300 Message-Id: <1532343772-27382-34-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1532343772-27382-1-git-send-email-todor.tomov@linaro.org> References: <1532343772-27382-1-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 the document to describe the support of Camera Subsystem on MSM8996/APQ8096. Signed-off-by: Todor Tomov --- Documentation/media/v4l-drivers/qcom_camss.rst | 93 +++++++++++------- .../media/v4l-drivers/qcom_camss_8x96_graph.dot | 104 +++++++++++++++++++++ 2 files changed, 164 insertions(+), 33 deletions(-) create mode 100644 Documentation/media/v4l-drivers/qcom_camss_8x96_graph.dot -- 2.7.4 diff --git a/Documentation/media/v4l-drivers/qcom_camss.rst b/Documentation/media/v4l-drivers/qcom_camss.rst index 9e66b7b..f27c8df 100644 --- a/Documentation/media/v4l-drivers/qcom_camss.rst +++ b/Documentation/media/v4l-drivers/qcom_camss.rst @@ -7,34 +7,34 @@ Introduction ------------ This file documents the Qualcomm Camera Subsystem driver located under -drivers/media/platform/qcom/camss-8x16. +drivers/media/platform/qcom/camss. The current version of the driver supports the Camera Subsystem found on -Qualcomm MSM8916 and APQ8016 processors. +Qualcomm MSM8916/APQ8016 and MSM8996/APQ8096 processors. The driver implements V4L2, Media controller and V4L2 subdev interfaces. Camera sensor using V4L2 subdev interface in the kernel is supported. The driver is implemented using as a reference the Qualcomm Camera Subsystem -driver for Android as found in Code Aurora [#f1]_. +driver for Android as found in Code Aurora [#f1]_ [#f2]_. Qualcomm Camera Subsystem hardware ---------------------------------- -The Camera Subsystem hardware found on 8x16 processors and supported by the -driver consists of: +The Camera Subsystem hardware found on 8x16 / 8x96 processors and supported by +the driver consists of: -- 2 CSIPHY modules. They handle the Physical layer of the CSI2 receivers. +- 2 / 3 CSIPHY modules. They handle the Physical layer of the CSI2 receivers. A separate camera sensor can be connected to each of the CSIPHY module; -- 2 CSID (CSI Decoder) modules. They handle the Protocol and Application layer - of the CSI2 receivers. A CSID can decode data stream from any of the CSIPHY. - Each CSID also contains a TG (Test Generator) block which can generate +- 2 / 4 CSID (CSI Decoder) modules. They handle the Protocol and Application + layer of the CSI2 receivers. A CSID can decode data stream from any of the + CSIPHY. Each CSID also contains a TG (Test Generator) block which can generate artificial input data for test purposes; - ISPIF (ISP Interface) module. Handles the routing of the data streams from the CSIDs to the inputs of the VFE; -- VFE (Video Front End) module. Contains a pipeline of image processing hardware - blocks. The VFE has different input interfaces. The PIX (Pixel) input +- 1 / 2 VFE (Video Front End) module(s). Contain a pipeline of image processing + hardware blocks. The VFE has different input interfaces. The PIX (Pixel) input interface feeds the input data to the image processing pipeline. The image processing pipeline contains also a scale and crop module at the end. Three RDI (Raw Dump Interface) input interfaces bypass the image processing @@ -49,18 +49,33 @@ The current version of the driver supports: - 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. +- RDI interface of VFE - Supported formats: + - Raw dump of the input data to memory. - - 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). + 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 / + V4L2_PIX_FMT_Y10P); + - MIPI RAW12 (12bit packed Bayer RAW - V4L2_PIX_FMT_SRGGB12P / + V4L2_PIX_FMT_SGBRG12P / V4L2_PIX_FMT_SGRBG12P / V4L2_PIX_FMT_SRGGB12P). + - (8x96 only) MIPI RAW14 (14bit packed Bayer RAW - V4L2_PIX_FMT_SRGGB14P / + V4L2_PIX_FMT_SGBRG14P / V4L2_PIX_FMT_SGRBG14P / V4L2_PIX_FMT_SRGGB14P). + + - (8x96 only) Format conversion of the input data. + + Supported input formats: + + - MIPI RAW10 (10bit packed Bayer RAW - V4L2_PIX_FMT_SBGGR10P / V4L2_PIX_FMT_Y10P). + + Supported output formats: + + - Plain16 RAW10 (10bit unpacked Bayer RAW - V4L2_PIX_FMT_SBGGR10 / V4L2_PIX_FMT_Y10). - PIX interface of VFE @@ -75,14 +90,16 @@ The current version of the driver supports: - 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). + - (8x96 only) 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). - Scaling support. Configuration of the VFE Encoder Scale module for downscalling with ratio up to 16x. - Cropping support. Configuration of the VFE Encoder Crop module. -- Concurrent and independent usage of two data inputs - could be camera sensors - and/or TG. +- Concurrent and independent usage of two (8x96: three) data inputs - + could be camera sensors and/or TG. Driver Architecture and Design @@ -90,14 +107,14 @@ Driver Architecture and Design The driver implements the V4L2 subdev interface. With the goal to model the hardware links between the modules and to expose a clean, logical and usable -interface, the driver is split into V4L2 sub-devices as follows: +interface, the driver is split into V4L2 sub-devices as follows (8x16 / 8x96): -- 2 CSIPHY sub-devices - each CSIPHY is represented by a single sub-device; -- 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; -- 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). +- 2 / 3 CSIPHY sub-devices - each CSIPHY is represented by a single sub-device; +- 2 / 4 CSID sub-devices - each CSID is represented by a single sub-device; +- 2 / 4 ISPIF sub-devices - ISPIF is represented by a number of sub-devices + equal to the number of CSID sub-devices; +- 4 / 8 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 for each VFE). The considerations to split the driver in this particular way are as follows: @@ -115,8 +132,8 @@ The considerations to split the driver in this particular way are as follows: Each VFE sub-device is linked to a separate video device node. -The media controller pipeline graph is as follows (with connected two OV5645 -camera sensors): +The media controller pipeline graph is as follows (with connected two / three +OV5645 camera sensors): .. _qcom_camss_graph: @@ -124,7 +141,13 @@ camera sensors): :alt: qcom_camss_graph.dot :align: center - Media pipeline graph + Media pipeline graph 8x16 + +.. kernel-figure:: qcom_camss_8x96_graph.dot + :alt: qcom_camss_8x96_graph.dot + :align: center + + Media pipeline graph 8x96 Implementation @@ -149,8 +172,12 @@ APQ8016 Specification: https://developer.qualcomm.com/download/sd410/snapdragon-410-processor-device-specification.pdf Referenced 2016-11-24. +APQ8096 Specification: +https://developer.qualcomm.com/download/sd820e/qualcomm-snapdragon-820e-processor-apq8096sge-device-specification.pdf +Referenced 2018-06-22. References ---------- .. [#f1] https://source.codeaurora.org/quic/la/kernel/msm-3.10/ +.. [#f2] https://source.codeaurora.org/quic/la/kernel/msm-3.18/ diff --git a/Documentation/media/v4l-drivers/qcom_camss_8x96_graph.dot b/Documentation/media/v4l-drivers/qcom_camss_8x96_graph.dot new file mode 100644 index 0000000..de34f0a --- /dev/null +++ b/Documentation/media/v4l-drivers/qcom_camss_8x96_graph.dot @@ -0,0 +1,104 @@ +digraph board { + rankdir=TB + n00000001 [label="{{ 0} | msm_csiphy0\n/dev/v4l-subdev0 | { 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000001:port1 -> n0000000a:port0 [style=dashed] + n00000001:port1 -> n0000000d:port0 [style=dashed] + n00000001:port1 -> n00000010:port0 [style=dashed] + n00000001:port1 -> n00000013:port0 [style=dashed] + n00000004 [label="{{ 0} | msm_csiphy1\n/dev/v4l-subdev1 | { 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000004:port1 -> n0000000a:port0 [style=dashed] + n00000004:port1 -> n0000000d:port0 [style=dashed] + n00000004:port1 -> n00000010:port0 [style=dashed] + n00000004:port1 -> n00000013:port0 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