From patchwork Wed Mar 13 07:25:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 13591091 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DCFB5200CD for ; Wed, 13 Mar 2024 07:26:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710314763; cv=none; b=K4WCH2b9vxQE+o/LpbkvctHKevJtvGCNi0/es8qBe72kdVugR/1qJUQ6NFzihCeibmZpq1spsaJcfX4oOOm2wfqIsRw7VquEQOLvByedkVjJ0EzbwShjZZv0bq+NDWWvk+d6HCCT/7+2OanVqku7g82WH86KJBtHUYU/uk6JxB8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710314763; c=relaxed/simple; bh=QApGfBNqivWY9pTmvw98NRk3haDWO68NeCx7t79Ongs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AS/BMj2y8BG/sMxCz9yryVYlQhRdsM6gXaGSFlBgVh1xDJFSK52CdZyjFBUOcHrO4zdcvcmT/mPDfypzcbQFYmRNQGIeUB8XbgDd/J1S5eQR4COMc1RMFVhFIXUd9ruh4zdEJ1MB1vc5vNQT8TJGrtK5d3gWIfut31ID1gbgh30= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=DBP3Aeu+; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="DBP3Aeu+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1710314762; x=1741850762; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QApGfBNqivWY9pTmvw98NRk3haDWO68NeCx7t79Ongs=; b=DBP3Aeu+8t+rFXCzkxVaGYAH1FC9LI7arFqqbLP2Cb0qkbYqfBDeIRd0 gFtUClB3J10Mka80EMD1b6rdaYEVueGvzYMYFNhW7Vqp6LNejWfkJoPTl pVgZ32dAed5dI95j4CkUZuMRpB+5DURHbcfsTxYeWLFU3rHC/OWe/MZLC 9mt3USyMnpbki0bzhBaUpgpIb1ajZCKmzAqBQ5HYXnAeXC19HnsamE4TG 95epOjy1bl0IU8lx5gwxAR00Jl3aYGo2b5lvNjnQ/V5hA3ALH4Vgi+7XN h3EqipwAxkjqjQK5aMYB8dYxiLIWqzCUE2+JJspctQJydPa0SIZ7xy+NK g==; X-IronPort-AV: E=McAfee;i="6600,9927,11011"; a="22575643" X-IronPort-AV: E=Sophos;i="6.07,119,1708416000"; d="scan'208";a="22575643" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Mar 2024 00:25:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,119,1708416000"; d="scan'208";a="42816476" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Mar 2024 00:25:54 -0700 Received: from svinhufvud.ger.corp.intel.com (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with ESMTP id F203311FB94; Wed, 13 Mar 2024 09:25:50 +0200 (EET) From: Sakari Ailus To: linux-media@vger.kernel.org Cc: Laurent Pinchart , tomi.valkeinen@ideasonboard.com, bingbu.cao@intel.com, hongju.wang@intel.com, hverkuil@xs4all.nl, Andrey Konovalov , Jacopo Mondi , Dmitry Perchanov , "Ng, Khai Wen" , Alain Volmat Subject: [PATCH v8 23/38] media: uapi: ccs: Add media bus code for MIPI CCS embedded data Date: Wed, 13 Mar 2024 09:25:01 +0200 Message-Id: <20240313072516.241106-24-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240313072516.241106-1-sakari.ailus@linux.intel.com> References: <20240313072516.241106-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add new MIPI CCS embedded data media bus code (MEDIA_BUS_FMT_CCS_EMBEDDED). Signed-off-by: Sakari Ailus Reviewed-by: Julien Massot --- .../media/v4l/subdev-formats.rst | 28 +++++++++++++++++++ include/uapi/linux/media-bus-format.h | 3 ++ 2 files changed, 31 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/subdev-formats.rst b/Documentation/userspace-api/media/v4l/subdev-formats.rst index cbd475f7cae9..c8f982411e70 100644 --- a/Documentation/userspace-api/media/v4l/subdev-formats.rst +++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst @@ -8564,3 +8564,31 @@ and finally the bit number in subscript. "X" indicates a padding bit. - X - X - X + +.. _MEDIA-BUS-FMT-CCS-EMBEDDED: + +MIPI CCS Embedded Data Formats +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +`MIPI CCS `_ defines a +metadata format for sensor embedded data, which is used to store the register +configuration used for capturing a given frame. The format is defined in the CCS +specification. The media bus code for this format is +``MEDIA_BUS_FMT_CCS_EMBEDDED``. + +The CCS embedded data format definition includes three levels: + +1. Padding within CSI-2 bus :ref:`Data unit ` as + documented in the MIPI CCS specification. + +2. The tagged data format as documented in the MIPI CCS specification. + +3. Register addresses and register documentation as documented in the MIPI CCS + specification. + +The format definition shall be used only by devices that fulfill all three +levels above. + +This mbus code are only used for "2-byte simplified tagged data format" (code +0xa) but their use may be extended further in the future, to cover other CCS +embedded data format codes. diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h index d4c1d991014b..03f7e9ab517b 100644 --- a/include/uapi/linux/media-bus-format.h +++ b/include/uapi/linux/media-bus-format.h @@ -183,4 +183,7 @@ #define MEDIA_BUS_FMT_META_20 0x8006 #define MEDIA_BUS_FMT_META_24 0x8007 +/* Specific metadata formats. Next is 0x9002. */ +#define MEDIA_BUS_FMT_CCS_EMBEDDED 0x9001 + #endif /* __LINUX_MEDIA_BUS_FORMAT_H */