From patchwork Fri Dec 20 13:24:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 13916751 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 676EB215F76 for ; Fri, 20 Dec 2024 13:24:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734701099; cv=none; b=SsCLenO7eJl6HpCsrS6pzuqUY1JFqRRVIjh3QK7JLqRAgichNboZteyvVKMKnB96CpUCItRSrbbWN8+6mkAHnz0W/BIkLGvD6QRPvMFyQ6KcxDHaX7GnyXQ7a9taNG0tmrRqV6fUS9x5/H0qhThOko3IoANRfcjxON3UXJSIgTo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734701099; c=relaxed/simple; bh=0iC0lQyNBuxKm1TUD7DF+PD53HARIMHVyuMWdRyh7Is=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=SgFKqMRNE/Ue5DWLQadieqHDQPXHitvzBMLHtb4jaJrHzPnGphmS2YwcLFglyzKfcnq1LBJosRBb4wuRChMV1LX3oR56cyGYKMhui/Kv0nif2QYrKuGSHzpGXNp0cBpPWyUWxqgB4R7Mu2hEHEjIucSo7MdqK87l6tbCr+fB1TU= 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=HzRVRXQ7; arc=none smtp.client-ip=192.198.163.9 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="HzRVRXQ7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734701097; x=1766237097; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0iC0lQyNBuxKm1TUD7DF+PD53HARIMHVyuMWdRyh7Is=; b=HzRVRXQ7w/rHLLuXtZNkazCLH6s7gqKkwGhYJc0SFumOm+ZAfbLoqVrj LyhVPgl7baThZf21t50i+gvhTAiB+GusLjw82LZkkBLvcG4MFTM3kPB2d YZInGxBdfYGlfCFcgUQ+Li9jLxMF9naqmO511w8gTsXFVkXa66hrJBklu ZmQyAWUa9FFElf1BDTck0auBc4Cj5qWHfBo3tUc0uXsWtEBO/lvidRVNF B7LsNPmkMtAoeG2p8Y3JYqS9z6Wulq/xg3Bq/HgrZkUe3FcDDVRU+4K7B hagqH6NX7dwSYpNMslppSLhWPCx75JU2GyXKXR80flx1Bzi0nPSGgumfu Q==; X-CSE-ConnectionGUID: hMjtoktdTNyNcTyrLMving== X-CSE-MsgGUID: I/W/HXWcTDqN19tVBgu2GQ== X-IronPort-AV: E=McAfee;i="6700,10204,11292"; a="45937645" X-IronPort-AV: E=Sophos;i="6.12,250,1728975600"; d="scan'208";a="45937645" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Dec 2024 05:24:57 -0800 X-CSE-ConnectionGUID: FoWtpdc4S2qM8Qj2Q71SfQ== X-CSE-MsgGUID: wUYBYwE/QZiESJt4HXFJJQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,250,1728975600"; d="scan'208";a="98333295" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Dec 2024 05:24:51 -0800 Received: from svinhufvud.intel.com (maa-artisokka.localdomain [192.168.240.50]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 5F17C120B3E; Fri, 20 Dec 2024 15:24:46 +0200 (EET) Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, Prabhakar , Kate Hsuan , Alexander Shiyan , Mikhail Rudenko , Dave Stevenson , Tommaso Merciai , Umang Jain , Benjamin Mugnier , Sylvain Petinot , Christophe JAILLET , Julien Massot , Naushir Patuck , "Yan, Dongcheng" , "Cao, Bingbu" , "Qiu, Tian Shu" , "Wang, Hongju" , Stefan Klug , Mirela Rabulea , =?utf-8?q?Andr=C3=A9_Apitzsch?= , Heimir Thor Sverrisson , Kieran Bingham , Stanislaw Gruszka , Mehdi Djait , Ricardo Ribalda Delgado Subject: [RFC v4 7/9] media: uapi: Add V4L2_CID_BINNING control for binning configuration Date: Fri, 20 Dec 2024 15:24:17 +0200 Message-Id: <20241220132419.1027206-8-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241220132419.1027206-1-sakari.ailus@linux.intel.com> References: <20241220132419.1027206-1-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 V4L2_CID_BINNING control for configuting binning and enumerating a camera sensor's binning capabilities. The control combines horizontal and vertical binning into a single control as the two are generally related. New drivers should use this control to configure binning. Signed-off-by: Sakari Ailus --- .../media/drivers/camera-sensor.rst | 10 +++++++ .../media/v4l/ext-ctrls-camera.rst | 29 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ctrls-defs.c | 2 ++ include/uapi/linux/v4l2-controls.h | 1 + 4 files changed, 42 insertions(+) diff --git a/Documentation/userspace-api/media/drivers/camera-sensor.rst b/Documentation/userspace-api/media/drivers/camera-sensor.rst index 5bc4c79d230c..c6167c91f46c 100644 --- a/Documentation/userspace-api/media/drivers/camera-sensor.rst +++ b/Documentation/userspace-api/media/drivers/camera-sensor.rst @@ -107,6 +107,16 @@ values programmed by the register sequences. The default values of these controls shall be 0 (disabled). Especially these controls shall not be inverted, independently of the sensor's mounting rotation. +Binning +------- + +Binning has traditionally been configured using :ref:`the compose selection +rectangle `. The :ref:`V4L2_CID_BINNING +` is also available for binning configuration and +users should use it when it's available. Drivers supporting the control shall +also support the compose rectangle, albeit the rectangle may be read-only when +the control is present. + .. _media_using_camera_sensor_drivers_embedded_data: Embedded data diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst index cdc515c60468..18b484ff5d75 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst @@ -672,3 +672,32 @@ enum v4l2_scene_mode - As modes differ for each sensor, menu items are not standardized by this control and are left to the programmer. + +.. _v4l2-cid-camera-sensor-binning: + +``V4L2_CID_BINNING_FACTORS (integer menu)`` + + Horizontal and vertical binning factors. Binning combines several + horizontal, vertical or both pixel values into a single pixel. It is a way + to scale an image. Binning typically produces fairly good quality output. + + Determines both horizontal and vertical binning factors for a camera + sensor. The values are encoded in the following way: + +.. flat-table:: + :header-rows: 1 + :stub-columns: 0 + + * - Bits + - Synopsis + * - 48--63 + - Horizontal binning numerator. + * - 32--47 + - Horizontal binning denominator. + * - 16--31 + - Vertical binning numerator. + * - 0--15 + - Vertical binning denominator. + +For instance, a value of ``0x0001000300020003`` indicates binning by 3 +(horizontally) * 3/2 (vertically). diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c index 24c9c25e20d1..5945976b841f 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c @@ -1087,6 +1087,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_CAMERA_ORIENTATION: return "Camera Orientation"; case V4L2_CID_CAMERA_SENSOR_ROTATION: return "Camera Sensor Rotation"; case V4L2_CID_HDR_SENSOR_MODE: return "HDR Sensor Mode"; + case V4L2_CID_BINNING_FACTORS: return "Binning Factors"; /* FM Radio Modulator controls */ /* Keep the order of the 'case's the same as in v4l2-controls.h! */ @@ -1424,6 +1425,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_HDR_SENSOR_MODE: *type = V4L2_CTRL_TYPE_MENU; break; + case V4L2_CID_BINNING_FACTORS: case V4L2_CID_LINK_FREQ: *type = V4L2_CTRL_TYPE_INTEGER_MENU; break; diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 0152240229ab..8d5815a058d7 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -1088,6 +1088,7 @@ enum v4l2_auto_focus_range { #define V4L2_CID_CAMERA_SENSOR_ROTATION (V4L2_CID_CAMERA_CLASS_BASE+35) #define V4L2_CID_HDR_SENSOR_MODE (V4L2_CID_CAMERA_CLASS_BASE+36) +#define V4L2_CID_BINNING_FACTORS (V4L2_CID_CAMERA_CLASS_BASE+37) /* FM Modulator class control IDs */