From patchwork Wed Jul 22 11:57:11 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 27445 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 BB051BDE4C for ; Wed, 22 Jul 2026 11:57:33 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 03E6B67E93; Wed, 22 Jul 2026 13:57:32 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="rEDzQ7Qq"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id ECC3A660AE for ; Wed, 22 Jul 2026 13:57:29 +0200 (CEST) Received: from [192.168.1.101] (mob-5-90-61-61.net.vodafone.it [5.90.61.61]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id A3D55447; Wed, 22 Jul 2026 13:56:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1784721389; bh=d8NrzsPRVBLJufVONCt6UlqvnmdiH0v/23ukxSlo+n0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=rEDzQ7QqlKumtlcOW/qF7I1SVy9vQYJiOIcMvYKXGo5Z8c7wQGitJWAJuoUl0OuAK t4vBLDlIMUF2v7m690sPtvzJ3A1fIYVoIq68Y8cmnTu1D8cZU6Mk50CSe7gXLdYf7Y Gp5lIRBQ8WTPeIymxkC3OBT4JLzfhUZbLoscmR2E= From: Jacopo Mondi Date: Wed, 22 Jul 2026 13:57:11 +0200 Subject: [PATCH 1/3] ipa: rpi: cam_helper: Add Mira220 cam helper MIME-Version: 1.0 Message-Id: <20260722-mira220-v1-1-1006a4cbd2a8@ideasonboard.com> References: <20260722-mira220-v1-0-1006a4cbd2a8@ideasonboard.com> In-Reply-To: <20260722-mira220-v1-0-1006a4cbd2a8@ideasonboard.com> To: libcamera-devel@lists.libcamera.org Cc: Philippe Baetens , Jacopo Mondi X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2675; i=jacopo.mondi@ideasonboard.com; h=from:subject:message-id; bh=d8NrzsPRVBLJufVONCt6UlqvnmdiH0v/23ukxSlo+n0=; b=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBqYLAo7CBZw6YuTHtbo3dnopB8Rzaqd7c3w4Foo cI5Q8OJk7uJAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCamCwKAAKCRByNAaPFqFW PIO+D/9fCpgkh6JCxAMU9lVokRd33Bv/uRWMw1drT2VcG5dGJM5tBaAYtYkR/s6yq7DY6ZwtXz1 +KQOfiu9RKiEPFfPxh4bLfDvvvHXKPmfvXzuh2jDEQZkSx3knigNAgtXUaLAAMLfK36EiyXziD5 7NmdmAz7osevJZviscIbqHmceppRTWao9mqtcNjFCBEeAJjmL/nwZKMffzOIGfYTIpTHp5Knrrj EEwxY6JIYoCAo9QEgquwLXaxlYIoOEhf9RpvKv2/bBFH0Th9OS/r+u1T69TW5o5uQ+SVWhENC+U sFOYfAwcQhc/lRLW5CBYSWSaK1AafY9NKtagQ+PdWP48Luz1Qiwg61it8eQ9Rn9oR29Y7D/xNC2 7rZt6sZqcNhFaObD5a7lP1ZFD7R+ECl7JibaJ+yhwjAvDroU1P9jmxZcnHryvyyOuF0+Ll/w95P BSO8p5+0FZEjJQT46OiQfefHOU5Sp2Xghn4OxHe4HfaQ8+Zi99OFX8Y+ZFYKTOFvPZcFFXDF+jc AXZG4SyEZke6gwlVr4R4mV20YZ6CnowTmusIDpmj5N4km2kIMtVzPPG8kf8gUdz9FlMEWQ1w3Qz 6wRAzN62/3rCDTN3rGv7VwhdJZeqmTaYdyMFvhUi3aX5jREkNIW53/YQ5Lz42lg3kHrbWo3CVjN vbPwVf+ycX28SdA== X-Developer-Key: i=jacopo.mondi@ideasonboard.com; a=openpgp; fpr=72392EDC88144A65C701EA9BA5826A2587AD026B 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" AMS-OSRAM Mira220 is a global shutter sensor with a maximum resolution of 1600x1400. This patch upports the Mira220 support available at https://github.com/ams-OSRAM/libcamera.git at revision d7d5e17ec961 ("update json files so they are truly mono") Signed-off-by: Jacopo Mondi --- src/ipa/rpi/cam_helper/cam_helper_mira220.cpp | 61 +++++++++++++++++++++++++++ src/ipa/rpi/cam_helper/meson.build | 1 + 2 files changed, 62 insertions(+) diff --git a/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp b/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp new file mode 100644 index 000000000000..235546ccf7c5 --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2024, Raspberry Pi Ltd + * + * cam_helper_Mira220.cpp - camera information for Mira220 sensor + */ + +#include + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperMira220 : public CamHelper +{ +public: + CamHelperMira220(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + unsigned int hideFramesModeSwitch() const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 4; +}; + +/* + * Mira220 doesn't output metadata, so we have to use the delayed controls which + * works by counting frames. + */ + +CamHelperMira220::CamHelperMira220() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperMira220::gainCode(double gain) const +{ + return static_cast(2048.0 - 2048.0 / gain); +} + +double CamHelperMira220::gain(uint32_t gainCode) const +{ + return static_cast(2048.0 / (2048 - gainCode)); +} + +unsigned int CamHelperMira220::hideFramesModeSwitch() const +{ + /* After a mode switch, we seem to get 1 bad frame. */ + return 1; +} + +static CamHelper *create() +{ + return new CamHelperMira220(); +} + +static RegisterCamHelper reg("mira220", &create); diff --git a/src/ipa/rpi/cam_helper/meson.build b/src/ipa/rpi/cam_helper/meson.build index eabd55dce5a1..a8756a1a0226 100644 --- a/src/ipa/rpi/cam_helper/meson.build +++ b/src/ipa/rpi/cam_helper/meson.build @@ -12,6 +12,7 @@ rpi_ipa_cam_helper_sources = files([ 'cam_helper_imx519.cpp', 'cam_helper_imx678.cpp', 'cam_helper_imx708.cpp', + 'cam_helper_mira220.cpp', 'cam_helper_ov64a40.cpp', 'cam_helper_ov7251.cpp', 'cam_helper_ov9281.cpp',