{"id":16466,"url":"https://patchwork.libcamera.org/api/1.1/patches/16466/?format=json","web_url":"https://patchwork.libcamera.org/patch/16466/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20220630133902.321099-9-jacopo@jmondi.org>","date":"2022-06-30T13:38:47","name":"[libcamera-devel,v3,08/23] libcamera: camera_sensor: Initialize controls","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":true,"hash":"3b1ae757cf0c63434edc086589fb04afc9b900bd","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/1.1/people/3/?format=json","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/16466/mbox/","series":[{"id":3238,"url":"https://patchwork.libcamera.org/api/1.1/series/3238/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=3238","date":"2022-06-30T13:38:39","name":"Internal controls, sensor delays and IPA rework","version":3,"mbox":"https://patchwork.libcamera.org/series/3238/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/16466/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/16466/checks/","tags":{},"headers":{"Return-Path":"","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 C6B2CC3279\n\tfor ;\n\tThu, 30 Jun 2022 13:39:33 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id B38116569F;\n\tThu, 30 Jun 2022 15:39:32 +0200 (CEST)","from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net\n\t[217.70.183.193])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 91EC465657\n\tfor ;\n\tThu, 30 Jun 2022 15:39:28 +0200 (CEST)","(Authenticated sender: jacopo@jmondi.org)\n\tby mail.gandi.net (Postfix) with ESMTPSA id A59BA24000E;\n\tThu, 30 Jun 2022 13:39:27 +0000 (UTC)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1656596372;\n\tbh=D4LZqFIaG7h5yKFiw2jMPZjigf1V/xSbPCU74OIl17I=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:\n\tFrom;\n\tb=e9AaHM0wf+KNb/1RxUSkPgxKf1kaJHLwMmSWLzsvGIbEF1KMMiXfVOoJaRTv4AHvo\n\tpSzIBSFYyJ4JgppWfoP+fbwyiFEw3JIRF6zmyM7hrDrgU7/ZyE2JrWh7oV/i6LFbJu\n\t6WZ7nPnGmICMUgvyAPJ+YgblMQ5LDV3mzvPIMwqGnjD0wvqIfTOe/8d4wm4wpcgVR1\n\txVGyZnHgFF20aXyYqS5CRTH7YiDpNRQQwCgl/bCYDrnFvScTgqsG2rzYEzrJyD9uDp\n\tDrdGj6NUkCE6uXiKD0XidpY0iDPzgy9QckELT1wUkjpM8i/4+RWgfaYJu3eK4R5gUR\n\t1bG8ST3im/5qg==","To":"libcamera-devel@lists.libcamera.org","Date":"Thu, 30 Jun 2022 15:38:47 +0200","Message-Id":"<20220630133902.321099-9-jacopo@jmondi.org>","X-Mailer":"git-send-email 2.36.1","In-Reply-To":"<20220630133902.321099-1-jacopo@jmondi.org>","References":"<20220630133902.321099-1-jacopo@jmondi.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Subject":"[libcamera-devel] [PATCH v3 08/23] libcamera: camera_sensor:\n\tInitialize controls","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Jacopo Mondi via libcamera-devel ","Reply-To":"Jacopo Mondi ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Initialize the control interface of the CameraSensor class by\nregistering the control limits for controls::internal::ExposureTime,\ncontrols::internal::FrameDuration and controls::internal::AnalogueGain.\n\nUpdate the CameraSensor controls in the CameraSensor::updateControlInfo()\nfunction after having updated the subdevice V4L2 controls.\n\nSigned-off-by: Jacopo Mondi \n---\n include/libcamera/internal/camera_sensor.h | 3 +\n src/libcamera/camera_sensor/camera_sensor.cpp | 90 +++++++++++++++++++\n 2 files changed, 93 insertions(+)","diff":"diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h\nindex 2a850dedc0aa..1eab5e9d53f0 100644\n--- a/include/libcamera/internal/camera_sensor.h\n+++ b/include/libcamera/internal/camera_sensor.h\n@@ -63,6 +63,7 @@ public:\n \tV4L2Subdevice *device() { return subdev_.get(); }\n \n \tconst ControlList &properties() const { return properties_; }\n+\tconst ControlInfoMap &controls() const { return controls_; }\n \tint sensorInfo(IPACameraSensorInfo *info) const;\n \n \tvoid updateControlInfo();\n@@ -81,6 +82,7 @@ private:\n \tvoid initStaticProperties();\n \tvoid initTestPatternModes();\n \tint initProperties();\n+\tint updateControls();\n \tint applyTestPatternMode(controls::draft::TestPatternModeEnum mode);\n \tint discoverAncillaryDevices();\n \n@@ -104,6 +106,7 @@ private:\n \tconst BayerFormat *bayerFormat_;\n \n \tControlList properties_;\n+\tControlInfoMap controls_;\n \n \tstd::unique_ptr focusLens_;\n \tstd::unique_ptr helper_;\ndiff --git a/src/libcamera/camera_sensor/camera_sensor.cpp b/src/libcamera/camera_sensor/camera_sensor.cpp\nindex 26cfa7d0f65a..976d34aaf876 100644\n--- a/src/libcamera/camera_sensor/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor/camera_sensor.cpp\n@@ -22,6 +22,7 @@\n #include \"libcamera/internal/bayer_format.h\"\n #include \"libcamera/internal/camera_lens.h\"\n #include \"libcamera/internal/camera_sensor_properties.h\"\n+#include \"libcamera/internal/control_ids.h\"\n #include \"libcamera/internal/formats.h\"\n #include \"libcamera/internal/sysfs.h\"\n \n@@ -180,6 +181,10 @@ int CameraSensor::init()\n \t\treturn -ENODEV;\n \t}\n \n+\tret = updateControls();\n+\tif (ret)\n+\t\treturn ret;\n+\n \tret = discoverAncillaryDevices();\n \tif (ret)\n \t\treturn ret;\n@@ -455,6 +460,84 @@ int CameraSensor::initProperties()\n \treturn 0;\n }\n \n+int CameraSensor::updateControls()\n+{\n+\tif (!bayerFormat_)\n+\t\treturn 0;\n+\n+\tControlInfoMap::Map controlsMap;\n+\n+\t/* The subdev driver has been validate already, the controls are there! */\n+\tControlList subdevControls = subdev_->getControls({ V4L2_CID_PIXEL_RATE,\n+\t\t\t\t\t\t\t V4L2_CID_HBLANK });\n+\tuint64_t pixelRate = subdevControls.get(V4L2_CID_PIXEL_RATE).get();\n+\tuint32_t hblank = subdevControls.get(V4L2_CID_HBLANK).get();\n+\n+\t/* Assume the sensor has a single source pad #0. */\n+\tV4L2SubdeviceFormat subdevFormat;\n+\tsubdev_->getFormat(0, &subdevFormat);\n+\n+\tconst ControlInfoMap &subdevControlsInfo = subdev_->controls();\n+\n+\t/*\n+\t * Compute controls::ExposureTime limits by using line length and pixel\n+\t * rate converted to microseconds. Use the V4L2_CID_EXPOSURE control to\n+\t * get exposure min, max and default and convert it from lines to\n+\t * microseconds.\n+\t */\n+\tuint32_t lineLength = subdevFormat.size.width + hblank;\n+\tdouble lineDuration = lineLength / (pixelRate / 1000000.0F);\n+\tconst ControlInfo &v4l2Exposure = subdevControlsInfo.at(V4L2_CID_EXPOSURE);\n+\tint32_t minExposure = v4l2Exposure.min().get() * lineDuration;\n+\tint32_t maxExposure = v4l2Exposure.max().get() * lineDuration;\n+\tint32_t defExposure = v4l2Exposure.def().get() * lineDuration;\n+\n+\tcontrolsMap[&controls::internal::ExposureTime] =\n+\t\tControlInfo(minExposure, maxExposure, defExposure);\n+\n+\t/*\n+\t * Compute the frame duration limits.\n+\t *\n+\t * The frame length is computed assuming a fixed line length combined\n+\t * with the vertical frame sizes.\n+\t */\n+\tconst ControlInfo &v4l2VBlank = subdevControlsInfo.at(V4L2_CID_VBLANK);\n+\tstd::array frameHeights{\n+\t\tv4l2VBlank.min().get() + subdevFormat.size.height,\n+\t\tv4l2VBlank.max().get() + subdevFormat.size.height,\n+\t\tv4l2VBlank.def().get() + subdevFormat.size.height,\n+\t};\n+\n+\tstd::array frameDurations;\n+\tfor (unsigned int i = 0; i < frameHeights.size(); ++i) {\n+\t\tuint64_t frameSize = lineLength * frameHeights[i];\n+\t\tframeDurations[i] = frameSize / (pixelRate / 1000000.0F);\n+\t}\n+\n+\tcontrolsMap[&controls::internal::FrameDuration] =\n+\t\tControlInfo(frameDurations[0], frameDurations[1], frameDurations[2]);\n+\n+\t/*\n+\t * Analogue gain values.\n+\t *\n+\t * Translate the V4L2 analogue gain, expressed in sensor-specific\n+\t * gain codes, and translate them to analogue gain values.\n+\t *\n+\t * \\todo: CameraSensorHelper returns a double; there's no ControlValue\n+\t * overload for the double type.\n+\t */\n+\tconst ControlInfo &v4l2AGain = subdevControlsInfo.at(V4L2_CID_ANALOGUE_GAIN);\n+\tcontrolsMap[&controls::internal::AnalogueGain] =\n+\t\tControlInfo(static_cast(helper_->gain(v4l2AGain.min().get())),\n+\t\t\t static_cast(helper_->gain(v4l2AGain.max().get())),\n+\t\t\t static_cast(helper_->gain(v4l2AGain.def().get())));\n+\n+\tcontrols_ = ControlInfoMap(std::move(controlsMap),\n+\t\t\t\t controls::internal::controls);\n+\n+\treturn 0;\n+}\n+\n /**\n * \\brief Check for and initialise any ancillary devices\n *\n@@ -815,6 +898,12 @@ int CameraSensor::setV4L2Controls(ControlList *ctrls)\n * \\return The list of camera sensor properties\n */\n \n+/**\n+ * \\fn CameraSensor::controls()\n+ * \\brief Retrieve the map of the camera sensor controls limits\n+ * \\return The map of camera sensor control information\n+ */\n+\n /**\n * \\brief Assemble and return the camera sensor info\n * \\param[out] info The camera sensor info\n@@ -910,6 +999,7 @@ int CameraSensor::sensorInfo(IPACameraSensorInfo *info) const\n void CameraSensor::updateControlInfo()\n {\n \tsubdev_->updateControlInfo();\n+\tupdateControls();\n }\n \n /**\n","prefixes":["libcamera-devel","v3","08/23"]}