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{
    "id": 11668,
    "url": "https://patchwork.libcamera.org/api/patches/11668/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/11668/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/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": "<20210323143610.787760-3-naush@raspberrypi.com>",
    "date": "2021-03-23T14:36:05",
    "name": "[libcamera-devel,v3,2/7] pipeline: ipa: raspberrypi: Open the CamHelper on ipa::init()",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "42538c82743a18682fe74320b824a121f3aeb70d",
    "submitter": {
        "id": 34,
        "url": "https://patchwork.libcamera.org/api/people/34/?format=api",
        "name": "Naushir Patuck",
        "email": "naush@raspberrypi.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/11668/mbox/",
    "series": [
        {
            "id": 1823,
            "url": "https://patchwork.libcamera.org/api/series/1823/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1823",
            "date": "2021-03-23T14:36:03",
            "name": "Raspberry Pi: ipa::init() restructuring",
            "version": 3,
            "mbox": "https://patchwork.libcamera.org/series/1823/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/11668/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/11668/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "From": "Naushir Patuck <naush@raspberrypi.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Tue, 23 Mar 2021 14:36:05 +0000",
        "Message-Id": "<20210323143610.787760-3-naush@raspberrypi.com>",
        "X-Mailer": "git-send-email 2.25.1",
        "In-Reply-To": "<20210323143610.787760-1-naush@raspberrypi.com>",
        "References": "<20210323143610.787760-1-naush@raspberrypi.com>",
        "MIME-Version": "1.0",
        "Subject": "[libcamera-devel] [PATCH v3 2/7] pipeline: ipa: raspberrypi: Open\n\tthe CamHelper on ipa::init()",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
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        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "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": "Move the opening of the CamHelper from ipa::configure() to ipa::init().\nThis allows the pipeline handler to get the sensor specific parameters\nin pipeline_handler::match() where the ipa is initialised.\n\nHaving the sensor parameters available earlier will allow selective\nuse of the embedded data node in a future change.\n\nSigned-off-by: Naushir Patuck <naush@raspberrypi.com>\nTested-by: David Plowman <david.plowman@raspberrypi.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n include/libcamera/ipa/raspberrypi.mojom       |  8 +--\n src/ipa/raspberrypi/raspberrypi.cpp           | 62 +++++++++----------\n .../pipeline/raspberrypi/raspberrypi.cpp      | 36 +++++------\n 3 files changed, 46 insertions(+), 60 deletions(-)",
    "diff": "diff --git a/include/libcamera/ipa/raspberrypi.mojom b/include/libcamera/ipa/raspberrypi.mojom\nindex eb427697d349..fafbd6c0cff3 100644\n--- a/include/libcamera/ipa/raspberrypi.mojom\n+++ b/include/libcamera/ipa/raspberrypi.mojom\n@@ -15,10 +15,6 @@ enum BufferMask {\n /* Size of the LS grid allocation. */\n const uint32 MaxLsGridSize = 0x8000;\n \n-enum ConfigOutputParameters {\n-\tConfigSensorParams = 0x01,\n-};\n-\n struct SensorConfig {\n \tuint32 gainDelay;\n \tuint32 exposureDelay;\n@@ -40,8 +36,6 @@ struct ConfigInput {\n };\n \n struct ConfigOutput {\n-\tuint32 params;\n-\tSensorConfig sensorConfig;\n \tControlList controls;\n };\n \n@@ -51,7 +45,7 @@ struct StartControls {\n };\n \n interface IPARPiInterface {\n-\tinit(IPASettings settings) => (int32 ret);\n+\tinit(IPASettings settings) => (int32 ret, SensorConfig sensorConfig);\n \tstart(StartControls controls) => (StartControls result);\n \tstop();\n \ndiff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp\nindex 7904225a29fa..a5b4b3110abf 100644\n--- a/src/ipa/raspberrypi/raspberrypi.cpp\n+++ b/src/ipa/raspberrypi/raspberrypi.cpp\n@@ -79,7 +79,7 @@ public:\n \t\t\tmunmap(lsTable_, ipa::RPi::MaxLsGridSize);\n \t}\n \n-\tint init(const IPASettings &settings) override;\n+\tint init(const IPASettings &settings, ipa::RPi::SensorConfig *sensorConfig) override;\n \tvoid start(const ipa::RPi::StartControls &data,\n \t\t   ipa::RPi::StartControls *result) override;\n \tvoid stop() override {}\n@@ -164,9 +164,35 @@ private:\n \tdouble maxFrameDuration_;\n };\n \n-int IPARPi::init(const IPASettings &settings)\n+int IPARPi::init(const IPASettings &settings, ipa::RPi::SensorConfig *sensorConfig)\n {\n \ttuningFile_ = settings.configurationFile;\n+\n+\t/*\n+\t * Load the \"helper\" for this sensor. This tells us all the device specific stuff\n+\t * that the kernel driver doesn't. We only do this the first time; we don't need\n+\t * to re-parse the metadata after a simple mode-switch for no reason.\n+\t */\n+\thelper_ = std::unique_ptr<RPiController::CamHelper>(RPiController::CamHelper::Create(settings.sensorModel));\n+\tif (!helper_) {\n+\t\tLOG(IPARPI, Error) << \"Could not create camera helper for \"\n+\t\t\t\t   << settings.sensorModel;\n+\t\treturn -EINVAL;\n+\t}\n+\n+\t/*\n+\t * Pass out the sensor config to the pipeline handler in order\n+\t * to setup the staggered writer class.\n+\t */\n+\tint gainDelay, exposureDelay, vblankDelay, sensorMetadata;\n+\thelper_->GetDelays(exposureDelay, gainDelay, vblankDelay);\n+\tsensorMetadata = helper_->SensorEmbeddedDataPresent();\n+\n+\tsensorConfig->gainDelay = gainDelay;\n+\tsensorConfig->exposureDelay = exposureDelay;\n+\tsensorConfig->vblankDelay = vblankDelay;\n+\tsensorConfig->sensorMetadata = sensorMetadata;\n+\n \treturn 0;\n }\n \n@@ -301,8 +327,6 @@ int IPARPi::configure(const CameraSensorInfo &sensorInfo,\n \t\treturn -1;\n \t}\n \n-\tresult->params = 0;\n-\n \tsensorCtrls_ = entityControls.at(0);\n \tispCtrls_ = entityControls.at(1);\n \n@@ -319,36 +343,6 @@ int IPARPi::configure(const CameraSensorInfo &sensorInfo,\n \t/* Setup a metadata ControlList to output metadata. */\n \tlibcameraMetadata_ = ControlList(controls::controls);\n \n-\t/*\n-\t * Load the \"helper\" for this sensor. This tells us all the device specific stuff\n-\t * that the kernel driver doesn't. We only do this the first time; we don't need\n-\t * to re-parse the metadata after a simple mode-switch for no reason.\n-\t */\n-\tstd::string cameraName(sensorInfo.model);\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\treturn -1;\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.\n-\t\t */\n-\t\tint gainDelay, exposureDelay, vblankDelay, sensorMetadata;\n-\t\thelper_->GetDelays(exposureDelay, gainDelay, vblankDelay);\n-\t\tsensorMetadata = helper_->SensorEmbeddedDataPresent();\n-\n-\t\tresult->params |= ipa::RPi::ConfigSensorParams;\n-\t\tresult->sensorConfig.gainDelay = gainDelay;\n-\t\tresult->sensorConfig.exposureDelay = exposureDelay;\n-\t\tresult->sensorConfig.vblankDelay = vblankDelay;\n-\t\tresult->sensorConfig.sensorMetadata = sensorMetadata;\n-\t}\n-\n \t/* Re-assemble camera mode using the sensor info. */\n \tsetMode(sensorInfo);\n \ndiff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex 2c8ae31a28ad..ce1994186d66 100644\n--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n@@ -146,7 +146,7 @@ public:\n \n \tvoid frameStarted(uint32_t sequence);\n \n-\tint loadIPA();\n+\tint loadIPA(ipa::RPi::SensorConfig *sensorConfig);\n \tint configureIPA(const CameraConfiguration *config);\n \n \tvoid statsMetadataComplete(uint32_t bufferId, const ControlList &controls);\n@@ -1030,11 +1030,24 @@ bool PipelineHandlerRPi::match(DeviceEnumerator *enumerator)\n \tif (data->sensor_->init())\n \t\treturn false;\n \n-\tif (data->loadIPA()) {\n+\tipa::RPi::SensorConfig sensorConfig;\n+\tif (data->loadIPA(&sensorConfig)) {\n \t\tLOG(RPI, Error) << \"Failed to load a suitable IPA library\";\n \t\treturn false;\n \t}\n \n+\t/*\n+\t * Setup our delayed control writer with the sensor default\n+\t * gain and exposure delays. Mark VBLANK for priority write.\n+\t */\n+\tstd::unordered_map<uint32_t, DelayedControls::ControlParams> params = {\n+\t\t{ V4L2_CID_ANALOGUE_GAIN, { sensorConfig.gainDelay, false } },\n+\t\t{ V4L2_CID_EXPOSURE, { sensorConfig.exposureDelay, false } },\n+\t\t{ V4L2_CID_VBLANK, { sensorConfig.vblankDelay, true } }\n+\t};\n+\tdata->delayedCtrls_ = std::make_unique<DelayedControls>(data->unicam_[Unicam::Image].dev(), params);\n+\tdata->sensorMetadata_ = sensorConfig.sensorMetadata;\n+\n \t/* Register the controls that the Raspberry Pi IPA can handle. */\n \tdata->controlInfo_ = RPi::Controls;\n \t/* Initialize the camera properties. */\n@@ -1214,7 +1227,7 @@ void RPiCameraData::frameStarted(uint32_t sequence)\n \tdelayedCtrls_->applyControls(sequence);\n }\n \n-int RPiCameraData::loadIPA()\n+int RPiCameraData::loadIPA(ipa::RPi::SensorConfig *sensorConfig)\n {\n \tipa_ = IPAManager::createIPA<ipa::RPi::IPAProxyRPi>(pipe_, 1, 1);\n \n@@ -1230,7 +1243,7 @@ int RPiCameraData::loadIPA()\n \tIPASettings settings(ipa_->configurationFile(sensor_->model() + \".json\"),\n \t\t\t     sensor_->model());\n \n-\treturn ipa_->init(settings);\n+\treturn ipa_->init(settings, sensorConfig);\n }\n \n int RPiCameraData::configureIPA(const CameraConfiguration *config)\n@@ -1293,21 +1306,6 @@ int RPiCameraData::configureIPA(const CameraConfiguration *config)\n \t\treturn -EPIPE;\n \t}\n \n-\tif (result.params & ipa::RPi::ConfigSensorParams) {\n-\t\t/*\n-\t\t * Setup our delayed control writer with the sensor default\n-\t\t * gain and exposure delays. Mark VBLANK for priority write.\n-\t\t */\n-\t\tstd::unordered_map<uint32_t, DelayedControls::ControlParams> params = {\n-\t\t\t{ V4L2_CID_ANALOGUE_GAIN, { result.sensorConfig.gainDelay, false } },\n-\t\t\t{ V4L2_CID_EXPOSURE, { result.sensorConfig.exposureDelay, false } },\n-\t\t\t{ V4L2_CID_VBLANK, { result.sensorConfig.vblankDelay, true } }\n-\t\t};\n-\n-\t\tdelayedCtrls_ = std::make_unique<DelayedControls>(unicam_[Unicam::Image].dev(), params);\n-\t\tsensorMetadata_ = result.sensorConfig.sensorMetadata;\n-\t}\n-\n \tif (!result.controls.empty()) {\n \t\tControlList &ctrls = result.controls;\n \t\tunicam_[Unicam::Image].dev()->setControls(&ctrls);\n",
    "prefixes": [
        "libcamera-devel",
        "v3",
        "2/7"
    ]
}