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{
    "id": 16399,
    "url": "https://patchwork.libcamera.org/api/patches/16399/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/16399/",
    "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": "<20220628083343.1992147-1-paul.elder@ideasonboard.com>",
    "date": "2022-06-28T08:33:43",
    "name": "[libcamera-devel,v2] pipeline: rkisp1: Support devices without self path",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "e0e1cd86ee338d02c3f03ad621229e4e7442b4ad",
    "submitter": {
        "id": 17,
        "url": "https://patchwork.libcamera.org/api/people/17/?format=api",
        "name": "Paul Elder",
        "email": "paul.elder@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/16399/mbox/",
    "series": [
        {
            "id": 3227,
            "url": "https://patchwork.libcamera.org/api/series/3227/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3227",
            "date": "2022-06-28T08:33:43",
            "name": "[libcamera-devel,v2] pipeline: rkisp1: Support devices without self path",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/3227/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/16399/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/16399/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
        "Delivered-To": "parsemail@patchwork.libcamera.org",
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        "DKIM-Signature": [
            "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1656405233;\n\tbh=oT2FTzU2WITXhEetKTO3hCMCs7Rh51Nm3iY9GZUYxGs=;\n\th=To:Date:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post:\n\tList-Help:List-Subscribe:From:Reply-To:From;\n\tb=E83tb7Yl9voo91FKB6bZc7jPho1jINgv/XHnA2Lp7byHr7uHEjoIZ8gUXmwKVt+Sg\n\tKh4IimWIYfl/2mzG1Y5dnE++FzI1yI6oZRWKKI7Z2/o485HWEZLJKOjgEwiyb0WkXv\n\tVYaWzKSARoxXJYdra6gOuqeyPKD0EgUhzLbmrZsvSz+Ql7PZsKIplNFEmAs5XHVKp2\n\tWTrq54C2VaT/WgC1lYE3XiUXgwEdVijIVP/yfJWt4pcVzbO5yfUIQHbo0YpI3HQt1+\n\tzaUIj1/Y0bodqTNowzR4zQxUKf5UzkIGSWylS9lMJOT3J5z2zPaVGTuN2uTIW4zbbq\n\tX5ym4eoFoifUQ==",
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        ],
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Tue, 28 Jun 2022 17:33:43 +0900",
        "Message-Id": "<20220628083343.1992147-1-paul.elder@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.30.2",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v2] pipeline: rkisp1: Support devices\n\twithout self path",
        "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>",
        "From": "Paul Elder via libcamera-devel <libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Paul Elder <paul.elder@ideasonboard.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Some hardware supported by the rkisp1 driver, such as the ISP in the\ni.MX8MP, don't have a self path. Although at the moment the driver still\nexposes the self path, prepare the rkisp1 pipeline handler for when the\nself path will be removed for devices that don't support it.\n\nSigned-off-by: Paul Elder <paul.elder@ideasonboard.com>\n\n---\nChanges in v2:\n- simplify matching\n- clean up self path availability in validate()\n- fix configure(), return -ENODEV if multiple roles but no self path\n---\n src/libcamera/pipeline/rkisp1/rkisp1.cpp | 40 ++++++++++++++----------\n 1 file changed, 24 insertions(+), 16 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp\nindex a233c961..2c457f0e 100644\n--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp\n+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp\n@@ -180,6 +180,8 @@ private:\n \tstd::unique_ptr<V4L2VideoDevice> stat_;\n \tstd::unique_ptr<V4L2Subdevice> csi_;\n \n+\tbool hasSelfPath_;\n+\n \tRkISP1MainPath mainPath_;\n \tRkISP1SelfPath selfPath_;\n \n@@ -344,7 +346,7 @@ void RkISP1CameraData::paramFilled(unsigned int frame)\n \tif (info->mainPathBuffer)\n \t\tmainPath_->queueBuffer(info->mainPathBuffer);\n \n-\tif (info->selfPathBuffer)\n+\tif (info->selfPathBuffer && selfPath_)\n \t\tselfPath_->queueBuffer(info->selfPathBuffer);\n }\n \n@@ -383,7 +385,7 @@ bool RkISP1CameraConfiguration::fitsAllPaths(const StreamConfiguration &cfg)\n \t\treturn false;\n \n \tconfig = cfg;\n-\tif (data_->selfPath_->validate(&config) != Valid)\n+\tif (data_->selfPath_ && data_->selfPath_->validate(&config) != Valid)\n \t\treturn false;\n \n \treturn true;\n@@ -393,6 +395,7 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()\n {\n \tconst CameraSensor *sensor = data_->sensor_.get();\n \tStatus status = Valid;\n+\tunsigned int pathCount = data_->selfPath_ ? 2 : 1;\n \n \tif (config_.empty())\n \t\treturn Invalid;\n@@ -403,8 +406,8 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()\n \t}\n \n \t/* Cap the number of entries to the available streams. */\n-\tif (config_.size() > 2) {\n-\t\tconfig_.resize(2);\n+\tif (config_.size() > pathCount) {\n+\t\tconfig_.resize(pathCount);\n \t\tstatus = Adjusted;\n \t}\n \n@@ -421,7 +424,7 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()\n \t\tstd::reverse(order.begin(), order.end());\n \n \tbool mainPathAvailable = true;\n-\tbool selfPathAvailable = true;\n+\tbool selfPathAvailable = (pathCount == 2);\n \tfor (unsigned int index : order) {\n \t\tStreamConfiguration &cfg = config_[index];\n \n@@ -500,7 +503,7 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()\n }\n \n PipelineHandlerRkISP1::PipelineHandlerRkISP1(CameraManager *manager)\n-\t: PipelineHandler(manager)\n+\t: PipelineHandler(manager), hasSelfPath_(true)\n {\n }\n \n@@ -527,7 +530,7 @@ CameraConfiguration *PipelineHandlerRkISP1::generateConfiguration(Camera *camera\n \t}\n \n \tbool mainPathAvailable = true;\n-\tbool selfPathAvailable = true;\n+\tbool selfPathAvailable = data->selfPath_;\n \tfor (const StreamRole role : roles) {\n \t\tbool useMainPath;\n \n@@ -636,10 +639,12 @@ int PipelineHandlerRkISP1::configure(Camera *camera, CameraConfiguration *c)\n \t\t\tret = mainPath_.configure(cfg, format);\n \t\t\tstreamConfig[0] = IPAStream(cfg.pixelFormat,\n \t\t\t\t\t\t    cfg.size);\n-\t\t} else {\n+\t\t} else if (hasSelfPath_) {\n \t\t\tret = selfPath_.configure(cfg, format);\n \t\t\tstreamConfig[1] = IPAStream(cfg.pixelFormat,\n \t\t\t\t\t\t    cfg.size);\n+\t\t} else {\n+\t\t\treturn -ENODEV;\n \t\t}\n \n \t\tif (ret)\n@@ -687,7 +692,7 @@ int PipelineHandlerRkISP1::exportFrameBuffers([[maybe_unused]] Camera *camera, S\n \n \tif (stream == &data->mainPathStream_)\n \t\treturn mainPath_.exportBuffers(count, buffers);\n-\telse if (stream == &data->selfPathStream_)\n+\telse if (hasSelfPath_ && stream == &data->selfPathStream_)\n \t\treturn selfPath_.exportBuffers(count, buffers);\n \n \treturn -EINVAL;\n@@ -816,7 +821,7 @@ int PipelineHandlerRkISP1::start(Camera *camera, [[maybe_unused]] const ControlL\n \t\t}\n \t}\n \n-\tif (data->selfPath_->isEnabled()) {\n+\tif (hasSelfPath_ && data->selfPath_->isEnabled()) {\n \t\tret = selfPath_.start();\n \t\tif (ret) {\n \t\t\tmainPath_.stop();\n@@ -843,7 +848,8 @@ void PipelineHandlerRkISP1::stopDevice(Camera *camera)\n \n \tdata->ipa_->stop();\n \n-\tselfPath_.stop();\n+\tif (hasSelfPath_)\n+\t\tselfPath_.stop();\n \tmainPath_.stop();\n \n \tret = stat_->streamOff();\n@@ -946,7 +952,8 @@ int PipelineHandlerRkISP1::createCamera(MediaEntity *sensor)\n \tint ret;\n \n \tstd::unique_ptr<RkISP1CameraData> data =\n-\t\tstd::make_unique<RkISP1CameraData>(this, &mainPath_, &selfPath_);\n+\t\tstd::make_unique<RkISP1CameraData>(this, &mainPath_,\n+\t\t\t\t\t\t   hasSelfPath_ ? &selfPath_ : nullptr);\n \n \tControlInfoMap::Map ctrls;\n \tctrls.emplace(std::piecewise_construct,\n@@ -1002,9 +1009,7 @@ bool PipelineHandlerRkISP1::match(DeviceEnumerator *enumerator)\n \n \tDeviceMatch dm(\"rkisp1\");\n \tdm.add(\"rkisp1_isp\");\n-\tdm.add(\"rkisp1_resizer_selfpath\");\n \tdm.add(\"rkisp1_resizer_mainpath\");\n-\tdm.add(\"rkisp1_selfpath\");\n \tdm.add(\"rkisp1_mainpath\");\n \tdm.add(\"rkisp1_stats\");\n \tdm.add(\"rkisp1_params\");\n@@ -1019,6 +1024,8 @@ bool PipelineHandlerRkISP1::match(DeviceEnumerator *enumerator)\n \t\treturn false;\n \t}\n \n+\thasSelfPath_ = !!media_->getEntityByName(\"rkisp1_selfpath\");\n+\n \t/* Create the V4L2 subdevices we will need. */\n \tisp_ = V4L2Subdevice::fromEntityName(media_, \"rkisp1_isp\");\n \tif (isp_->open() < 0)\n@@ -1049,11 +1056,12 @@ bool PipelineHandlerRkISP1::match(DeviceEnumerator *enumerator)\n \tif (!mainPath_.init(media_))\n \t\treturn false;\n \n-\tif (!selfPath_.init(media_))\n+\tif (hasSelfPath_ && !selfPath_.init(media_))\n \t\treturn false;\n \n \tmainPath_.bufferReady().connect(this, &PipelineHandlerRkISP1::bufferReady);\n-\tselfPath_.bufferReady().connect(this, &PipelineHandlerRkISP1::bufferReady);\n+\tif (hasSelfPath_)\n+\t\tselfPath_.bufferReady().connect(this, &PipelineHandlerRkISP1::bufferReady);\n \tstat_->bufferReady.connect(this, &PipelineHandlerRkISP1::statReady);\n \tparam_->bufferReady.connect(this, &PipelineHandlerRkISP1::paramReady);\n \n",
    "prefixes": [
        "libcamera-devel",
        "v2"
    ]
}