From patchwork Tue Feb 16 08:53:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naushir Patuck X-Patchwork-Id: 11300 X-Patchwork-Delegate: niklas.soderlund@ragnatech.se Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 9FDFFBD1EF for ; Tue, 16 Feb 2021 08:53:51 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 6D971637DE; Tue, 16 Feb 2021 09:53:51 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=raspberrypi.com header.i=@raspberrypi.com header.b="FPktfobB"; dkim-atps=neutral Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 6694563762 for ; Tue, 16 Feb 2021 09:53:48 +0100 (CET) Received: by mail-wm1-x32e.google.com with SMTP id a16so5183398wmm.0 for ; Tue, 16 Feb 2021 00:53:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raspberrypi.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=zQui2zXLsHlBseTfiwUN/JnL2KB7sNZ+RtAzvzuJznA=; b=FPktfobBD18RFxy4jo2xDWKmFx0fBarpoxFJwjfkySDQh3ea2kw9HVFvDHUf9jRM25 nTYZkHyBgRxxt0c7EoWXGZAfeIH2Y/h9xI1+yjAw3y8wEwx1VqtBHV5pHkFQuFl6dHYd LeLkZrnplrNLmmq8ahDvdt5x3b8d31rr8+rbHp7mnruS4RUcJK68mabmodUON+5lzr2V hf0ExRLxdQW3Ya16aMdCrL0+po83TCNbgxOes1FaEgVTnWygc7TYexpUxK3OTJtm/BVA Sg45RuFhOem/jNGkaTX0kSrgVieIdkX06x5EvR5uLrLpEAMSlpSb5bAHULnZ3JDF7AMj 1nBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zQui2zXLsHlBseTfiwUN/JnL2KB7sNZ+RtAzvzuJznA=; b=tFwkTK9fuzTs+oSkAD7obMUzS9yBm6w/IeuaBF19p9+ON9hZ81NNXCTsAjTn0mTjHa tZt2ybAOnVQr8LwXrH2mVLqLLvFnvrUbIGnyEXQ2X846bDYgkSex6qb2jLfDZfPWYQr3 5aFLVT1huvH6S8N6A0j7jj8vgAjLQbIDd+uiY2Pg9oxzGauxmuvy1SjnjAmNjTgkhkfR 6XqsWf+IP7bY1fQtrJk8TeTrpOJ4hAHlGoi1PGKdXWofS7EfKEM0B8zMItNjZGoe2Aud NHe+q3MRZFa5vtuumTCv5IUqr6oueMpGvNR5/GjY4E8G2QJYNVpMTyjxnRKKSwnCu9zb yuZA== X-Gm-Message-State: AOAM531j8S8zV//VjEorfeN8XdNsHaCndoH3xDmsxONvu6MP9BbanFHh 5PBdleAtR/FYWzzcnenvuBLcJN9btb3d85uR X-Google-Smtp-Source: ABdhPJzUTXOMSf7kh5/uqfI/BAQ5qht62yiq0c28vlQqNauCiRLo5OFq1Gkre+sKqU2hYjs/oKoSiQ== X-Received: by 2002:a05:600c:2904:: with SMTP id i4mr754991wmd.146.1613465627783; Tue, 16 Feb 2021 00:53:47 -0800 (PST) Received: from naush-laptop.patuck.local ([88.97.76.4]) by smtp.gmail.com with ESMTPSA id e1sm9300369wrd.44.2021.02.16.00.53.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Feb 2021 00:53:47 -0800 (PST) From: Naushir Patuck To: libcamera-devel@lists.libcamera.org Date: Tue, 16 Feb 2021 08:53:38 +0000 Message-Id: <20210216085342.1012717-2-naush@raspberrypi.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210216085342.1012717-1-naush@raspberrypi.com> References: <20210216085342.1012717-1-naush@raspberrypi.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 1/5] libcamera: delayed_controls: Add notion of priority write X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" If an exposure time change adjusts the vblanking limits, and we write both VBLANK and EXPOSURE controls as a set, the latter may fail if the value is outside of the limits calculated by the old VBLANK value. This is a limitation in V4L2 and cannot be fixed by writing VBLANK before EXPOSURE. The workaround here is to have the DelayedControls object mark the VBLANK control as "priority write", which then write VBLANK separately from (and ahead of) any other controls. This way, the sensor driver will update the EXPOSURE control with new limits before the new values is presented, and will thus be seen as valid. To support this, a new struct DelayedControls::ControlParams is used in the constructor to provide the control delay value as well as the priority write flag. Signed-off-by: Naushir Patuck Reviewed-by: Paul Elder --- include/libcamera/internal/delayed_controls.h | 9 +++- src/libcamera/delayed_controls.cpp | 54 +++++++++++++------ src/libcamera/pipeline/ipu3/ipu3.cpp | 8 +-- .../pipeline/raspberrypi/raspberrypi.cpp | 13 +++-- src/libcamera/pipeline/rkisp1/rkisp1.cpp | 8 +-- test/delayed_contols.cpp | 20 +++---- 6 files changed, 68 insertions(+), 44 deletions(-) diff --git a/include/libcamera/internal/delayed_controls.h b/include/libcamera/internal/delayed_controls.h index dc447a882514..564d9f2e2440 100644 --- a/include/libcamera/internal/delayed_controls.h +++ b/include/libcamera/internal/delayed_controls.h @@ -19,8 +19,13 @@ class V4L2Device; class DelayedControls { public: + struct ControlParams { + unsigned int delay; + bool priorityWrite; + }; + DelayedControls(V4L2Device *device, - const std::unordered_map &delays); + const std::unordered_map &controlParams); void reset(); @@ -64,7 +69,7 @@ private: V4L2Device *device_; /* \todo Evaluate if we should index on ControlId * or unsigned int */ - std::unordered_map delays_; + std::unordered_map controlParams_; unsigned int maxDelay_; bool running_; diff --git a/src/libcamera/delayed_controls.cpp b/src/libcamera/delayed_controls.cpp index ab1d40057c5f..3ed1dfebd035 100644 --- a/src/libcamera/delayed_controls.cpp +++ b/src/libcamera/delayed_controls.cpp @@ -40,15 +40,19 @@ LOG_DEFINE_CATEGORY(DelayedControls) /** * \brief Construct a DelayedControls instance * \param[in] device The V4L2 device the controls have to be applied to - * \param[in] delays Map of the numerical V4L2 control ids to their associated - * delays (in frames) + * \param[in] controlParams Map of the numerical V4L2 control ids to their + * associated control parameters. * - * Only controls specified in \a delays are handled. If it's desired to mix - * delayed controls and controls that take effect immediately the immediate - * controls must be listed in the \a delays map with a delay value of 0. + * The control parameters comprise of delays (in frames) and a priority write + * flag. If this flag is set, the relevant control is written separately from, + * ahead of the reset of the batched controls. + * + * Only controls specified in \a controlParams are handled. If it's desired to + * mix delayed controls and controls that take effect immediately the immediate + * controls must be listed in the \a controlParams map with a delay value of 0. */ DelayedControls::DelayedControls(V4L2Device *device, - const std::unordered_map &delays) + const std::unordered_map &controlParams) : device_(device), maxDelay_(0) { const ControlInfoMap &controls = device_->controls(); @@ -57,12 +61,12 @@ DelayedControls::DelayedControls(V4L2Device *device, * Create a map of control ids to delays for controls exposed by the * device. */ - for (auto const &delay : delays) { - auto it = controls.find(delay.first); + for (auto const ¶m : controlParams) { + auto it = controls.find(param.first); if (it == controls.end()) { LOG(DelayedControls, Error) << "Delay request for control id " - << utils::hex(delay.first) + << utils::hex(param.first) << " but control is not exposed by device " << device_->deviceNode(); continue; @@ -70,13 +74,14 @@ DelayedControls::DelayedControls(V4L2Device *device, const ControlId *id = it->first; - delays_[id] = delay.second; + controlParams_[id] = param.second; LOG(DelayedControls, Debug) - << "Set a delay of " << delays_[id] + << "Set a delay of " << controlParams_[id].delay + << " and priority write flag " << controlParams_[id].priorityWrite << " for " << id->name(); - maxDelay_ = std::max(maxDelay_, delays_[id]); + maxDelay_ = std::max(maxDelay_, controlParams_[id].delay); } reset(); @@ -97,8 +102,8 @@ void DelayedControls::reset() /* Retrieve control as reported by the device. */ std::vector ids; - for (auto const &delay : delays_) - ids.push_back(delay.first->id()); + for (auto const ¶m : controlParams_) + ids.push_back(param.first->id()); ControlList controls = device_->getControls(ids); @@ -140,7 +145,7 @@ bool DelayedControls::push(const ControlList &controls) const ControlId *id = it->second; - if (delays_.find(id) == delays_.end()) + if (controlParams_.find(id) == controlParams_.end()) return false; Info &info = values_[id][queueCount_]; @@ -220,12 +225,27 @@ void DelayedControls::applyControls(uint32_t sequence) ControlList out(device_->controls()); for (const auto &ctrl : values_) { const ControlId *id = ctrl.first; - unsigned int delayDiff = maxDelay_ - delays_[id]; + unsigned int delayDiff = maxDelay_ - controlParams_[id].delay; unsigned int index = std::max(0, writeCount_ - delayDiff); const Info &info = ctrl.second[index]; if (info.updated) { - out.set(id->id(), info); + if (controlParams_[id].priorityWrite) { + /* + * This control must be written now, it could + * affect validity of the other controls. + */ + ControlList priority(device_->controls()); + priority.set(id->id(), info); + device_->setControls(&priority); + } else { + /* + * Batch up the list of controls and write them + * at the end of the function. + */ + out.set(id->id(), info); + } + LOG(DelayedControls, Debug) << "Setting " << id->name() << " to " << info.toString() diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp index 61f7bf43ea08..eda07d915f0c 100644 --- a/src/libcamera/pipeline/ipu3/ipu3.cpp +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp @@ -988,14 +988,14 @@ int PipelineHandlerIPU3::registerCameras() * a sensor database. For now use generic values taken from * the Raspberry Pi and listed as 'generic values'. */ - std::unordered_map delays = { - { V4L2_CID_ANALOGUE_GAIN, 1 }, - { V4L2_CID_EXPOSURE, 2 }, + std::unordered_map params = { + { V4L2_CID_ANALOGUE_GAIN, { 1, false } }, + { V4L2_CID_EXPOSURE, { 2, false } }, }; data->delayedCtrls_ = std::make_unique(cio2->sensor()->device(), - delays); + params); data->cio2_.frameStart().connect(data->delayedCtrls_.get(), &DelayedControls::applyControls); diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp index b0bb12ab0f37..bdb439021c46 100644 --- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp +++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp @@ -1273,16 +1273,15 @@ int RPiCameraData::configureIPA(const CameraConfiguration *config) if (result.operation & RPi::IPA_RESULT_SENSOR_PARAMS) { /* * Setup our delayed control writer with the sensor default - * gain and exposure delays. + * gain and exposure delays. Mark VBLANK for priority write. */ - std::unordered_map delays = { - { V4L2_CID_ANALOGUE_GAIN, result.data[resultIdx++] }, - { V4L2_CID_EXPOSURE, result.data[resultIdx++] }, - { V4L2_CID_VBLANK, result.data[resultIdx++] } + std::unordered_map params = { + { V4L2_CID_ANALOGUE_GAIN, { result.data[resultIdx++], false } }, + { V4L2_CID_EXPOSURE, { result.data[resultIdx++], false } }, + { V4L2_CID_VBLANK, { result.data[resultIdx++], true } } }; - delayedCtrls_ = std::make_unique(unicam_[Unicam::Image].dev(), delays); - + delayedCtrls_ = std::make_unique(unicam_[Unicam::Image].dev(), params); sensorMetadata_ = result.data[resultIdx++]; } diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp index e85979a719b7..ea9b1e2b9fcb 100644 --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp @@ -942,14 +942,14 @@ int PipelineHandlerRkISP1::createCamera(MediaEntity *sensor) * a sensor database. For now use generic values taken from * the Raspberry Pi and listed as generic values. */ - std::unordered_map delays = { - { V4L2_CID_ANALOGUE_GAIN, 1 }, - { V4L2_CID_EXPOSURE, 2 }, + std::unordered_map params = { + { V4L2_CID_ANALOGUE_GAIN, { 1, false } }, + { V4L2_CID_EXPOSURE, { 2, false } }, }; data->delayedCtrls_ = std::make_unique(data->sensor_->device(), - delays); + params); isp_->frameStart.connect(data->delayedCtrls_.get(), &DelayedControls::applyControls); diff --git a/test/delayed_contols.cpp b/test/delayed_contols.cpp index 50169b12e566..3855eb18ecd4 100644 --- a/test/delayed_contols.cpp +++ b/test/delayed_contols.cpp @@ -72,8 +72,8 @@ protected: int singleControlNoDelay() { - std::unordered_map delays = { - { V4L2_CID_BRIGHTNESS, 0 }, + std::unordered_map delays = { + { V4L2_CID_BRIGHTNESS, { 0, false } }, }; std::unique_ptr delayed = std::make_unique(dev_.get(), delays); @@ -109,8 +109,8 @@ protected: int singleControlWithDelay() { - std::unordered_map delays = { - { V4L2_CID_BRIGHTNESS, 1 }, + std::unordered_map delays = { + { V4L2_CID_BRIGHTNESS, { 1, false } }, }; std::unique_ptr delayed = std::make_unique(dev_.get(), delays); @@ -150,9 +150,9 @@ protected: int dualControlsWithDelay(uint32_t startOffset) { - std::unordered_map delays = { - { V4L2_CID_BRIGHTNESS, 1 }, - { V4L2_CID_CONTRAST, 2 }, + std::unordered_map delays = { + { V4L2_CID_BRIGHTNESS, { 1, false } }, + { V4L2_CID_CONTRAST, { 2, false } }, }; std::unique_ptr delayed = std::make_unique(dev_.get(), delays); @@ -197,9 +197,9 @@ protected: int dualControlsMultiQueue() { - std::unordered_map delays = { - { V4L2_CID_BRIGHTNESS, 1 }, - { V4L2_CID_CONTRAST, 2 }, + std::unordered_map delays = { + { V4L2_CID_BRIGHTNESS, { 1, false } }, + { V4L2_CID_CONTRAST, { 2, false } } }; std::unique_ptr delayed = std::make_unique(dev_.get(), delays);