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{
    "id": 14506,
    "url": "https://patchwork.libcamera.org/api/patches/14506/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/14506/",
    "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": "<20211110031651.2808099-2-hiroh@chromium.org>",
    "date": "2021-11-10T03:16:50",
    "name": "[libcamera-devel,v5,2/3] libcamera: camera_sensor: Enable to set a test pattern mode",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "5ff0d01c7a3962fa54bab1f8fc5581741684da0d",
    "submitter": {
        "id": 63,
        "url": "https://patchwork.libcamera.org/api/people/63/?format=api",
        "name": "Hirokazu Honda",
        "email": "hiroh@chromium.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/14506/mbox/",
    "series": [
        {
            "id": 2700,
            "url": "https://patchwork.libcamera.org/api/series/2700/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2700",
            "date": "2021-11-10T03:16:49",
            "name": "[libcamera-devel,v5,1/3] libcamera: camera_sensor: Reference test pattern modes by enum type",
            "version": 5,
            "mbox": "https://patchwork.libcamera.org/series/2700/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/14506/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/14506/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "From": "Hirokazu Honda <hiroh@chromium.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Wed, 10 Nov 2021 12:16:50 +0900",
        "Message-Id": "<20211110031651.2808099-2-hiroh@chromium.org>",
        "X-Mailer": "git-send-email 2.34.0.rc0.344.g81b53c2807-goog",
        "In-Reply-To": "<20211110031651.2808099-1-hiroh@chromium.org>",
        "References": "<20211110031651.2808099-1-hiroh@chromium.org>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v5 2/3] libcamera: camera_sensor: Enable\n\tto set a test pattern mode",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
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        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "This adds a function to set a camera sensor driver a test pattern\nmode.\n\nSigned-off-by: Hirokazu Honda <hiroh@chromium.org>\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n include/libcamera/internal/camera_sensor.h |  8 +++\n src/libcamera/camera_sensor.cpp            | 64 +++++++++++++++++++---\n src/libcamera/control_ids.yaml             |  5 ++\n 3 files changed, 70 insertions(+), 7 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h\nindex edef2220..60ce0c45 100644\n--- a/include/libcamera/internal/camera_sensor.h\n+++ b/include/libcamera/internal/camera_sensor.h\n@@ -27,6 +27,9 @@ namespace libcamera {\n \n class BayerFormat;\n class MediaEntity;\n+class Request;\n+\n+struct CameraSensorProperties;\n \n class CameraSensor : protected Loggable\n {\n@@ -78,10 +81,14 @@ private:\n \t\t\t&testPatternModeMap);\n \tint initProperties();\n \n+\tint setTestPatternMode(controls::draft::TestPatternModeEnum testPatternMode);\n+\n \tconst MediaEntity *entity_;\n \tstd::unique_ptr<V4L2Subdevice> subdev_;\n \tunsigned int pad_;\n \n+\tconst CameraSensorProperties *staticProps_;\n+\n \tstd::string model_;\n \tstd::string id_;\n \n@@ -89,6 +96,7 @@ private:\n \tstd::vector<unsigned int> mbusCodes_;\n \tstd::vector<Size> sizes_;\n \tstd::vector<controls::draft::TestPatternModeEnum> testPatternModes_;\n+\tcontrols::draft::TestPatternModeEnum testPatternMode_;\n \n \tSize pixelArraySize_;\n \tRectangle activeArea_;\ndiff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex f0aa9f24..35925a95 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -17,6 +17,7 @@\n #include <string.h>\n \n #include <libcamera/property_ids.h>\n+#include <libcamera/request.h>\n \n #include <libcamera/base/utils.h>\n \n@@ -54,8 +55,9 @@ LOG_DEFINE_CATEGORY(CameraSensor)\n  * Once constructed the instance must be initialized with init().\n  */\n CameraSensor::CameraSensor(const MediaEntity *entity)\n-\t: entity_(entity), pad_(UINT_MAX), bayerFormat_(nullptr),\n-\t  properties_(properties::properties)\n+\t: entity_(entity), pad_(UINT_MAX), staticProps_(nullptr),\n+\t  testPatternMode_(controls::draft::TestPatternModeUnset),\n+\t  bayerFormat_(nullptr), properties_(properties::properties)\n {\n }\n \n@@ -161,6 +163,10 @@ int CameraSensor::init()\n \tif (ret)\n \t\treturn ret;\n \n+\tret = setTestPatternMode(controls::draft::TestPatternModeOff);\n+\tif (ret)\n+\t\treturn ret;\n+\n \treturn 0;\n }\n \n@@ -300,14 +306,14 @@ void CameraSensor::initVimcDefaultProperties()\n \n void CameraSensor::initStaticProperties()\n {\n-\tconst CameraSensorProperties *props = CameraSensorProperties::get(model_);\n-\tif (!props)\n+\tstaticProps_ = CameraSensorProperties::get(model_);\n+\tif (!staticProps_)\n \t\treturn;\n \n \t/* Register the properties retrieved from the sensor database. */\n-\tproperties_.set(properties::UnitCellSize, props->unitCellSize);\n+\tproperties_.set(properties::UnitCellSize, staticProps_->unitCellSize);\n \n-\tinitTestPatternModes(props->testPatternModes);\n+\tinitTestPatternModes(staticProps_->testPatternModes);\n }\n \n void CameraSensor::initTestPatternModes(\n@@ -315,7 +321,15 @@ void CameraSensor::initTestPatternModes(\n {\n \tconst auto &v4l2TestPattern = controls().find(V4L2_CID_TEST_PATTERN);\n \tif (v4l2TestPattern == controls().end()) {\n-\t\tLOG(CameraSensor, Debug) << \"No static test pattern map for \\'\"\n+\t\tLOG(CameraSensor, Debug)\n+\t\t\t<< \"V4L2_CID_TEST_PATTERN is not supported\";\n+\t\treturn;\n+\t}\n+\n+\tif (testPatternModes.empty()) {\n+\t\t// The camera sensor supports test patterns but we don't know\n+\t\t// how to map them so this should be fixed.\n+\t\tLOG(CameraSensor, Error) << \"No static test pattern map for \\'\"\n \t\t\t\t\t << model() << \"\\'\";\n \t\treturn;\n \t}\n@@ -531,6 +545,42 @@ Size CameraSensor::resolution() const\n  * \\return The list of test pattern modes\n  */\n \n+/**\n+ * \\brief Set the test pattern mode for the camera sensor\n+ * \\param[in] testPatternMode Test pattern mode control value to set the camera\n+ * sensor\n+ *\n+ * \\return 0 on success or a negative error code otherwise\n+ */\n+int CameraSensor::setTestPatternMode(controls::draft::TestPatternModeEnum testPatternMode)\n+{\n+\tif (testPatternMode_ == testPatternMode)\n+\t\treturn 0;\n+\n+\tif (!staticProps_ || testPatternModes_.empty())\n+\t\treturn 0;\n+\n+\tauto it = std::find(testPatternModes_.begin(), testPatternModes_.end(),\n+\t\t\t    testPatternMode);\n+\tif (it != testPatternModes_.end()) {\n+\t\tLOG(CameraSensor, Error) << \"Unsupported test pattern mode \"\n+\t\t\t\t\t << testPatternMode;\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tint32_t index = staticProps_->testPatternModes.at(testPatternMode);\n+\tControlList ctrls{ controls() };\n+\tctrls.set(V4L2_CID_TEST_PATTERN, index);\n+\n+\tint ret = setControls(&ctrls);\n+\tif (ret)\n+\t\treturn ret;\n+\n+\ttestPatternMode_ = testPatternMode;\n+\n+\treturn 0;\n+}\n+\n /**\n  * \\brief Retrieve the best sensor format for a desired output\n  * \\param[in] mbusCodes The list of acceptable media bus codes\ndiff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml\nindex 9d4638ae..083bac7b 100644\n--- a/src/libcamera/control_ids.yaml\n+++ b/src/libcamera/control_ids.yaml\n@@ -639,6 +639,11 @@ controls:\n         Control to select the test pattern mode. Currently identical to\n         ANDROID_SENSOR_TEST_PATTERN_MODE.\n       enum:\n+        - name: TestPatternModeUnset\n+          value: -1\n+          description: |\n+            No test pattern is set. Returned frames by the camera device are\n+            undefined.\n         - name: TestPatternModeOff\n           value: 0\n           description: |\n",
    "prefixes": [
        "libcamera-devel",
        "v5",
        "2/3"
    ]
}