From patchwork Tue Nov 7 10:41:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13448487 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 B2238C4332F for ; Tue, 7 Nov 2023 10:43:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234202AbjKGKnv (ORCPT ); Tue, 7 Nov 2023 05:43:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234203AbjKGKns (ORCPT ); Tue, 7 Nov 2023 05:43:48 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 445F611A for ; Tue, 7 Nov 2023 02:43:45 -0800 (PST) Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (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 ACEED6607447; Tue, 7 Nov 2023 10:43:43 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1699353824; bh=c7sHDpUD8KDZ/igbZBf8X/yhmzecELmuq/1rc3G8Zsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J/L0P81p+8WSes9IpkuCkupiPa6jmAzti9MJtNMJOZgi+Uft/XXw+DPU/V6csiS/I 6scaRyYaGCymZgziFsHFqj6tH1rBIkkw/fd3LyI743ub0a5r7/GoGwh7B+KFm4cCnr 0rFhHMkABXvFdt8rSTs1zME4axvXm5cC+08MetC5AtOWATj9zInZdBzea8q4PcLgcU TR4T5+IUM/P3nNyitz2aLdxOfgtnnV3xX5U0E8y6mVk+9+AV4nBGTQ9jfPQS7uk6oU zc/ftkP7k5Ai4gX9Hp3nbQXuFu6LqvCvmYo9RNDqljCChRLrePiXw9IQ7zxKlOe3J/ rNG68zWoqio7g== 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 v6 3/4] v4l2-utils: Add VIDIOC_DELETE_BUFS ioctl Date: Tue, 7 Nov 2023 11:41:31 +0100 Message-Id: <20231107104132.445705-4-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231107104132.445705-1-benjamin.gaignard@collabora.com> References: <20231107104132.445705-1-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! */