{"id":16389,"url":"https://patchwork.libcamera.org/api/patches/16389/?format=json","web_url":"https://patchwork.libcamera.org/patch/16389/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/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":"<20220627162732.33160-9-jacopo@jmondi.org>","date":"2022-06-27T16:27:25","name":"[libcamera-devel,08/15] libcamera: camera_sensor: Initialize controls","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":true,"hash":"7be34d6c12ee2398746ed3f80809aa8db2a178b9","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/people/3/?format=json","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/16389/mbox/","series":[{"id":3224,"url":"https://patchwork.libcamera.org/api/series/3224/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=3224","date":"2022-06-27T16:27:17","name":"Internal controls, sensor delays and IPA init/configure rework","version":1,"mbox":"https://patchwork.libcamera.org/series/3224/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/16389/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/16389/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 F2F64BD808\n\tfor ;\n\tMon, 27 Jun 2022 16:27:55 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 73DEF6563E;\n\tMon, 27 Jun 2022 18:27:55 +0200 (CEST)","from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net\n\t[IPv6:2001:4b98:dc4:8::227])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 392B465636\n\tfor ;\n\tMon, 27 Jun 2022 18:27:48 +0200 (CEST)","(Authenticated sender: jacopo@jmondi.org)\n\tby mail.gandi.net (Postfix) with ESMTPSA id 6E62420009;\n\tMon, 27 Jun 2022 16:27:47 +0000 (UTC)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1656347275;\n\tbh=y2h0WznafB5q+/INu0P7L8XWOVslu0KaZmIrAPC07d8=;\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=uae3sTqwbQTLni+zWNlJhbNGGs/8xRa6Q+9w5EjoFw4ZOE9w5Ks6X1oJssXUNGeLz\n\t4q2khufbN8WsEY+fUDbykp29ElCzld2iyhKp9nOiElD3IjQ251GTHGTX6Tc2hQezHd\n\t5ZNoJlyJozkv87GIJKWhI1q3onki2qpjuJVj2l5/nVukFrGjszfvnzcFuFQ4GIAoul\n\t4rRGxHbZdas3azcbFWJoOgh1rdvvKQRncWkAIyABNeC7LET5mYTY7NZpR8CuFWAVG4\n\trWZEpsTD9ZiHiUzKbKn5HnC5zT80Mw9sWXWPlwF51JrgVslxBQtLVZYnRynW2lMszW\n\t8XmlfDuXujAzA==","To":"libcamera-devel@lists.libcamera.org","Date":"Mon, 27 Jun 2022 18:27:25 +0200","Message-Id":"<20220627162732.33160-9-jacopo@jmondi.org>","X-Mailer":"git-send-email 2.36.1","In-Reply-To":"<20220627162732.33160-1-jacopo@jmondi.org>","References":"<20220627162732.33160-1-jacopo@jmondi.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Subject":"[libcamera-devel] [PATCH 08/15] 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\ncontrols::internal::draft::SensorAnalogueGain.\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.cpp | 89 ++++++++++++++++++++++\n src/libcamera/internal_control_ids.yaml | 10 +++\n 3 files changed, 102 insertions(+)","diff":"diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h\nindex 0bed6e679840..c71f93f230d1 100644\n--- a/include/libcamera/internal/camera_sensor.h\n+++ b/include/libcamera/internal/camera_sensor.h\n@@ -66,6 +66,7 @@ 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@@ -84,6 +85,7 @@ 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@@ -107,6 +109,7 @@ private:\n \tconst BayerFormat *bayerFormat_;\n \n \tControlList properties_;\n+\tControlInfoMap controls_;\n \n \tstd::unique_ptr focusLens_;\n };\ndiff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex e3354530380c..82e51272cccc 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/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 \tif (ret)\n \t\treturn ret;\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 +460,83 @@ 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+\t\t\t\t\t\t\t V4L2_CID_VBLANK });\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+\tauto &[expId, v4l2Exposure] = *subdevControlsInfo.find(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+\tauto &[vblankId, v4l2VBlank] = *subdevControlsInfo.find(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 * For analogue gain collect the raw V4L2 control values which express\n+\t * the gain codes as seen from the sensor and need to be translated\n+\t * on the IPA side.\n+\t *\n+\t * \\todo Translate it by using a CameraSensorHelper.\n+\t */\n+\tauto &[gainId, v4l2AGain] = *subdevControlsInfo.find(V4L2_CID_ANALOGUE_GAIN);\n+\tcontrolsMap[&controls::internal::draft::SensorAnalogueGain] =\n+\t\tControlInfo(v4l2AGain.min().get(),\n+\t\t\t v4l2AGain.max().get(),\n+\t\t\t 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@@ -837,6 +919,12 @@ 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@@ -932,6 +1020,7 @@ int CameraSensor::sensorInfo(IPACameraSensorInfo *info) const\n void CameraSensor::updateControlInfo()\n {\n \tsubdev_->updateControlInfo();\n+\tupdateControls();\n }\n \n /**\ndiff --git a/src/libcamera/internal_control_ids.yaml b/src/libcamera/internal_control_ids.yaml\nindex e69e0d30657c..c6e6bd111cf7 100644\n--- a/src/libcamera/internal_control_ids.yaml\n+++ b/src/libcamera/internal_control_ids.yaml\n@@ -9,6 +9,16 @@\n \n controls:\n \n+ - ExposureTime:\n+ type: int32_t\n+ description: |\n+ The sensor exposure time in milliseconds.\n+\n+ - FrameDuration:\n+ type: int64_t\n+ description: |\n+ The sensor frame duration time in milliseconds.\n+\n # ----------------------------------------------------------------------------\n # Draft controls section\n \n","prefixes":["libcamera-devel","08/15"]}