{"id":27445,"url":"https://patchwork.libcamera.org/api/patches/27445/?format=json","web_url":"https://patchwork.libcamera.org/patch/27445/","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":"<20260722-mira220-v1-1-1006a4cbd2a8@ideasonboard.com>","date":"2026-07-22T11:57:11","name":"[1/3] ipa: rpi: cam_helper: Add Mira220 cam helper","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"6b29f8b9c2feba88606d598a5f2a05848302dc0e","submitter":{"id":143,"url":"https://patchwork.libcamera.org/api/people/143/?format=json","name":"Jacopo Mondi","email":"jacopo.mondi@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/27445/mbox/","series":[{"id":6073,"url":"https://patchwork.libcamera.org/api/series/6073/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=6073","date":"2026-07-22T11:57:10","name":"ipa: rpi: Add support for Mira220 RGB version","version":1,"mbox":"https://patchwork.libcamera.org/series/6073/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/27445/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/27445/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 BB051BDE4C\n\tfor ;\n\tWed, 22 Jul 2026 11:57:33 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 03E6B67E93;\n\tWed, 22 Jul 2026 13:57:32 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id ECC3A660AE\n\tfor ;\n\tWed, 22 Jul 2026 13:57:29 +0200 (CEST)","from [192.168.1.101] (mob-5-90-61-61.net.vodafone.it [5.90.61.61])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id A3D55447;\n\tWed, 22 Jul 2026 13:56:29 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"rEDzQ7Qq\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1784721389;\n\tbh=d8NrzsPRVBLJufVONCt6UlqvnmdiH0v/23ukxSlo+n0=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=rEDzQ7QqlKumtlcOW/qF7I1SVy9vQYJiOIcMvYKXGo5Z8c7wQGitJWAJuoUl0OuAK\n\tt4vBLDlIMUF2v7m690sPtvzJ3A1fIYVoIq68Y8cmnTu1D8cZU6Mk50CSe7gXLdYf7Y\n\tGp5lIRBQ8WTPeIymxkC3OBT4JLzfhUZbLoscmR2E=","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","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","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 , \n\tJacopo Mondi ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=2675;\n\ti=jacopo.mondi@ideasonboard.com; h=from:subject:message-id;\n\tbh=d8NrzsPRVBLJufVONCt6UlqvnmdiH0v/23ukxSlo+n0=;\n\tb=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBqYLAo7CBZw6YuTHtbo3dnopB8Rzaqd7c3w4Foo\n\tcI5Q8OJk7uJAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCamCwKAAKCRByNAaPFqFW\n\tPIO+D/9fCpgkh6JCxAMU9lVokRd33Bv/uRWMw1drT2VcG5dGJM5tBaAYtYkR/s6yq7DY6ZwtXz1\n\t+KQOfiu9RKiEPFfPxh4bLfDvvvHXKPmfvXzuh2jDEQZkSx3knigNAgtXUaLAAMLfK36EiyXziD5\n\t7NmdmAz7osevJZviscIbqHmceppRTWao9mqtcNjFCBEeAJjmL/nwZKMffzOIGfYTIpTHp5Knrrj\n\tEEwxY6JIYoCAo9QEgquwLXaxlYIoOEhf9RpvKv2/bBFH0Th9OS/r+u1T69TW5o5uQ+SVWhENC+U\n\tsFOYfAwcQhc/lRLW5CBYSWSaK1AafY9NKtagQ+PdWP48Luz1Qiwg61it8eQ9Rn9oR29Y7D/xNC2\n\t7rZt6sZqcNhFaObD5a7lP1ZFD7R+ECl7JibaJ+yhwjAvDroU1P9jmxZcnHryvyyOuF0+Ll/w95P\n\tBSO8p5+0FZEjJQT46OiQfefHOU5Sp2Xghn4OxHe4HfaQ8+Zi99OFX8Y+ZFYKTOFvPZcFFXDF+jc\n\tAXZG4SyEZke6gwlVr4R4mV20YZ6CnowTmusIDpmj5N4km2kIMtVzPPG8kf8gUdz9FlMEWQ1w3Qz\n\t6wRAzN62/3rCDTN3rGv7VwhdJZeqmTaYdyMFvhUi3aX5jREkNIW53/YQ5Lz42lg3kHrbWo3CVjN\n\tvbPwVf+ycX28SdA==","X-Developer-Key":"i=jacopo.mondi@ideasonboard.com; a=openpgp;\n\tfpr=72392EDC88144A65C701EA9BA5826A2587AD026B","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","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"AMS-OSRAM Mira220 is a global shutter sensor with a maximum\nresolution of 1600x1400.\n\nThis patch upports the Mira220 support available at\nhttps://github.com/ams-OSRAM/libcamera.git at revision d7d5e17ec961\n(\"update json files so they are truly mono\")\n\nSigned-off-by: Jacopo Mondi \n---\n src/ipa/rpi/cam_helper/cam_helper_mira220.cpp | 61 +++++++++++++++++++++++++++\n src/ipa/rpi/cam_helper/meson.build | 1 +\n 2 files changed, 62 insertions(+)","diff":"diff --git a/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp b/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp\nnew file mode 100644\nindex 000000000000..235546ccf7c5\n--- /dev/null\n+++ b/src/ipa/rpi/cam_helper/cam_helper_mira220.cpp\n@@ -0,0 +1,61 @@\n+/* SPDX-License-Identifier: BSD-2-Clause */\n+/*\n+ * Copyright (C) 2024, Raspberry Pi Ltd\n+ *\n+ * cam_helper_Mira220.cpp - camera information for Mira220 sensor\n+ */\n+\n+#include \n+\n+#include \"cam_helper.h\"\n+\n+using namespace RPiController;\n+\n+class CamHelperMira220 : public CamHelper\n+{\n+public:\n+\tCamHelperMira220();\n+\tuint32_t gainCode(double gain) const override;\n+\tdouble gain(uint32_t gainCode) const override;\n+\tunsigned int hideFramesModeSwitch() const override;\n+\n+private:\n+\t/*\n+\t * Smallest difference between the frame length and integration time,\n+\t * in units of lines.\n+\t */\n+\tstatic constexpr int frameIntegrationDiff = 4;\n+};\n+\n+/*\n+ * Mira220 doesn't output metadata, so we have to use the delayed controls which\n+ * works by counting frames.\n+ */\n+\n+CamHelperMira220::CamHelperMira220()\n+\t: CamHelper({}, frameIntegrationDiff)\n+{\n+}\n+\n+uint32_t CamHelperMira220::gainCode(double gain) const\n+{\n+\treturn static_cast(2048.0 - 2048.0 / gain);\n+}\n+\n+double CamHelperMira220::gain(uint32_t gainCode) const\n+{\n+\treturn static_cast(2048.0 / (2048 - gainCode));\n+}\n+\n+unsigned int CamHelperMira220::hideFramesModeSwitch() const\n+{\n+\t/* After a mode switch, we seem to get 1 bad frame. */\n+\treturn 1;\n+}\n+\n+static CamHelper *create()\n+{\n+\treturn new CamHelperMira220();\n+}\n+\n+static RegisterCamHelper reg(\"mira220\", &create);\ndiff --git a/src/ipa/rpi/cam_helper/meson.build b/src/ipa/rpi/cam_helper/meson.build\nindex eabd55dce5a1..a8756a1a0226 100644\n--- a/src/ipa/rpi/cam_helper/meson.build\n+++ b/src/ipa/rpi/cam_helper/meson.build\n@@ -12,6 +12,7 @@ rpi_ipa_cam_helper_sources = files([\n 'cam_helper_imx519.cpp',\n 'cam_helper_imx678.cpp',\n 'cam_helper_imx708.cpp',\n+ 'cam_helper_mira220.cpp',\n 'cam_helper_ov64a40.cpp',\n 'cam_helper_ov7251.cpp',\n 'cam_helper_ov9281.cpp',\n","prefixes":["1/3"]}