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{
    "id": 10520,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/10520/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/10520/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20201127145612.1105770-1-naush@raspberrypi.com>",
    "date": "2020-11-27T14:56:12",
    "name": "[libcamera-devel,v2] pipeline: ipa: raspberrypi: Handle failures during IPA configuration",
    "commit_ref": "ee477efde8e49e26cc02437fd50a45cd439ee65e",
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "19389c082dc9878bcc54129208fd84b8d410051d",
    "submitter": {
        "id": 34,
        "url": "https://patchwork.libcamera.org/api/1.1/people/34/?format=api",
        "name": "Naushir Patuck",
        "email": "naush@raspberrypi.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/10520/mbox/",
    "series": [
        {
            "id": 1489,
            "url": "https://patchwork.libcamera.org/api/1.1/series/1489/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1489",
            "date": "2020-11-27T14:56:12",
            "name": "[libcamera-devel,v2] pipeline: ipa: raspberrypi: Handle failures during IPA configuration",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/1489/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/10520/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/10520/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
        "Delivered-To": "parsemail@patchwork.libcamera.org",
        "Received": [
            "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 65D61BE177\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 27 Nov 2020 14:56:19 +0000 (UTC)",
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        ],
        "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=raspberrypi.com header.i=@raspberrypi.com\n\theader.b=\"LtMb56+Z\"; dkim-atps=neutral",
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        "From": "Naushir Patuck <naush@raspberrypi.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Fri, 27 Nov 2020 14:56:12 +0000",
        "Message-Id": "<20201127145612.1105770-1-naush@raspberrypi.com>",
        "X-Mailer": "git-send-email 2.25.1",
        "MIME-Version": "1.0",
        "Subject": "[libcamera-devel] [PATCH v2] pipeline: ipa: raspberrypi: Handle\n\tfailures during IPA configuration",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
        "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>",
        "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>",
        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Content-Type": "text/plain; charset=\"us-ascii\"",
        "Content-Transfer-Encoding": "7bit",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "If the IPA fails during configuration, return an error flag to the\npipeline handler and fail the use case gracefully.\n\nAt present, the IPA configuration can fail for the following reasons:\n- The sensor is not recognised, and fails to open a CamHelper object.\n- The pipeline handler did not pass in controls for the ISP and sensor.\n\nSigned-off-by: Naushir Patuck <naush@raspberrypi.com>\nReviewed-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n include/libcamera/ipa/raspberrypi.h                |  1 +\n src/ipa/raspberrypi/raspberrypi.cpp                | 12 +++++++++++-\n src/libcamera/pipeline/raspberrypi/raspberrypi.cpp |  5 +++++\n 3 files changed, 17 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/include/libcamera/ipa/raspberrypi.h b/include/libcamera/ipa/raspberrypi.h\nindex 2b55dbfc..86c97ffa 100644\n--- a/include/libcamera/ipa/raspberrypi.h\n+++ b/include/libcamera/ipa/raspberrypi.h\n@@ -21,6 +21,7 @@ enum ConfigParameters {\n \tIPA_CONFIG_STAGGERED_WRITE = (1 << 1),\n \tIPA_CONFIG_SENSOR = (1 << 2),\n \tIPA_CONFIG_DROP_FRAMES = (1 << 3),\n+\tIPA_CONFIG_FAILED = (1 << 4),\n };\n \n enum Operations {\ndiff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp\nindex 9853a343..57dd9c61 100644\n--- a/src/ipa/raspberrypi/raspberrypi.cpp\n+++ b/src/ipa/raspberrypi/raspberrypi.cpp\n@@ -197,8 +197,11 @@ void IPARPi::configure(const CameraSensorInfo &sensorInfo,\n \t\t       const IPAOperationData &ipaConfig,\n \t\t       IPAOperationData *result)\n {\n-\tif (entityControls.empty())\n+\tif (entityControls.size() != 2) {\n+\t\tLOG(IPARPI, Error) << \"No ISP or sensor controls found.\";\n+\t\tresult->operation = RPi::IPA_CONFIG_FAILED;\n \t\treturn;\n+\t}\n \n \tresult->operation = 0;\n \n@@ -217,6 +220,13 @@ void IPARPi::configure(const CameraSensorInfo &sensorInfo,\n \tif (!helper_) {\n \t\thelper_ = std::unique_ptr<RPiController::CamHelper>(RPiController::CamHelper::Create(cameraName));\n \n+\t\tif (!helper_) {\n+\t\t\tLOG(IPARPI, Error) << \"Could not create camera helper for \"\n+\t\t\t\t\t   << cameraName;\n+\t\t\tresult->operation = RPi::IPA_CONFIG_FAILED;\n+\t\t\treturn;\n+\t\t}\n+\n \t\t/*\n \t\t * Pass out the sensor config to the pipeline handler in order\n \t\t * to setup the staggered writer class.\ndiff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex 6fcdf557..76252806 100644\n--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n@@ -1194,6 +1194,11 @@ int RPiCameraData::configureIPA(const CameraConfiguration *config)\n \tipa_->configure(sensorInfo_, streamConfig, entityControls, ipaConfig,\n \t\t\t&result);\n \n+\tif (result.operation & RPi::IPA_CONFIG_FAILED) {\n+\t\tLOG(RPI, Error) << \"IPA configuration failed!\";\n+\t\treturn -EPIPE;\n+\t}\n+\n \tunsigned int resultIdx = 0;\n \tif (result.operation & RPi::IPA_CONFIG_STAGGERED_WRITE) {\n \t\t/*\n",
    "prefixes": [
        "libcamera-devel",
        "v2"
    ]
}