From patchwork Fri Oct 27 08:47:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 739209 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 C6E3AC25B6E for ; Fri, 27 Oct 2023 08:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345550AbjJ0Irp (ORCPT ); Fri, 27 Oct 2023 04:47:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345502AbjJ0Iro (ORCPT ); Fri, 27 Oct 2023 04:47:44 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E1261B9 for ; Fri, 27 Oct 2023 01:47:42 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:dbc0:3460:d466:3213]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id F1E53660732E; Fri, 27 Oct 2023 09:47:40 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1698396461; bh=c7sHDpUD8KDZ/igbZBf8X/yhmzecELmuq/1rc3G8Zsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XBnIgsV8ADnqJ0QavVMQ6PXCAxuP04AxCJGd3lBcckN6C5gSOSCncLRSGDVggPB45 +b8MnBRdawgAuzQ4Yu8MGXsMYPx8cJH9rm0dnS2vPEhK0hajbNVjIHT5E7H8QlmdE/ 9UAYGI2+n2PSCUPXLCOHVkKdxPgg6DN35Z9eucVy9s3ArxH5rIWos3oLnGWPZrGqYB GCJXfonf2G84qe9WfR4cgQlSs2UTK/YaKYSJSiyseBDbPuKJa+35mRAvP9UyZ80MOJ cZZEfj9U62uN2xIPZN3Ox0akAE5z1SSlluix68pldy0Emoi6qNcAs0eoQHWYmkadGB 3Kc4zC5gc5ppw== From: Benjamin Gaignard To: hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com, mchehab@kernel.org Cc: linux-media@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v4 3/4] v4l2-utils: Add VIDIOC_DELETE_BUFS ioctl Date: Fri, 27 Oct 2023 10:47:31 +0200 Message-Id: <20231027084732.17528-4-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231027084732.17528-1-benjamin.gaignard@collabora.com> References: <20231027084732.17528-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add VIDIOC_DELETE_BUFS ioctl and it associated structure. Define V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to signal that queue support feature. Signed-off-by: Benjamin Gaignard --- include/linux/videodev2.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index e7312cfb..25690223 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -992,6 +992,7 @@ struct v4l2_requestbuffers { #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5) #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6) #define V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS (1 << 7) +#define V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS (1 << 8) /** * struct v4l2_plane - plane info for multi-planar buffers @@ -2562,6 +2563,20 @@ struct v4l2_create_buffers { __u32 reserved[5]; }; +/** + * struct v4l2_delete_buffers - VIDIOC_DELETE_BUFS argument + * @index: the first buffer to be deleted + * @count: number of buffers to delete + * @type: enum v4l2_buf_type + * @reserved: future extensions + */ +struct v4l2_delete_buffers { + __u32 index; + __u32 count; + __u32 type; + __u32 reserved[13]; +}; + /* * I O C T L C O D E S F O R V I D E O D E V I C E S * @@ -2661,6 +2676,7 @@ struct v4l2_create_buffers { #define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info) #define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl) +#define VIDIOC_DELETE_BUFS _IOWR('V', 104, struct v4l2_delete_buffers) /* Reminder: when adding new ioctls please add support for them to drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */