From patchwork Tue Oct 3 11:52:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 729441 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7DCAE7544F for ; Tue, 3 Oct 2023 11:52:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240631AbjJCLw5 (ORCPT ); Tue, 3 Oct 2023 07:52:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240622AbjJCLw4 (ORCPT ); Tue, 3 Oct 2023 07:52:56 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3CC7A7 for ; Tue, 3 Oct 2023 04:52:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696333972; x=1727869972; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1eRhR3vdQbwE+zqQIbgaOvRBqmRRrtHraOJQuVIaw5A=; b=UYZpioXf/r9QDB01UC8T86RSj2upmPOYd+3aXFjjX5OnT2wRz/pe7b9A oMalZWbjpJOYWLDwxNdDlY8gRI8UNqdTstzJ9XeDSihgFtOQ1KX1/V9OV 92rsVb6tLyC5KuonQ46Z29iPhwIcR1fxOP2WHkFAHehD7yA/rBxuj7L2n hScQ12Da9DaM5tQ12yCJVFOxe701m0bfyJePOAimxxx9V8jWF0SoO0ZCk f4r8Z+YMMvaCWXTAU4xwZyvdusE5jkiQyUdVA1yVFWTHTDnT/EqDdAL8x qGgmglbfCyvXxPyCiYtbXRvdBt1YudX7nszwQHa4cobS+em9pY7g5pi/K g==; X-IronPort-AV: E=McAfee;i="6600,9927,10851"; a="413767136" X-IronPort-AV: E=Sophos;i="6.03,197,1694761200"; d="scan'208";a="413767136" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2023 04:52:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10851"; a="816650525" X-IronPort-AV: E=Sophos;i="6.03,197,1694761200"; d="scan'208";a="816650525" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2023 04:52:50 -0700 Received: from svinhufvud.ger.corp.intel.com (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with ESMTP id A0CCD120797; Tue, 3 Oct 2023 14:52:46 +0300 (EEST) 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" Subject: [PATCH v6 06/28] media: uapi: ccs: Add media bus code for MIPI CCS embedded data Date: Tue, 3 Oct 2023 14:52:34 +0300 Message-Id: <20231003115237.76828-7-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231003115237.76828-1-sakari.ailus@linux.intel.com> References: <20231003115237.76828-1-sakari.ailus@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add new MIPI CCS embedded data media bus code (MEDIA_BUS_FMT_CCS_EMBEDDED). Signed-off-by: Sakari Ailus --- .../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 c54bf834d839..70cad81bf862 100644 --- a/Documentation/userspace-api/media/v4l/subdev-formats.rst +++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst @@ -8492,3 +8492,31 @@ 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 9ee031397372..9805f8e73e48 100644 --- a/include/uapi/linux/media-bus-format.h +++ b/include/uapi/linux/media-bus-format.h @@ -182,4 +182,7 @@ #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 */