From patchwork Wed Feb 21 15:55:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13565810 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 57D8C8062F for ; Wed, 21 Feb 2024 15:55:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708530956; cv=none; b=UlIlWVUcqTy3mND8WbYg4YzMlDous4KvH1OefOfFGVf4VcS/FPuF5AyAB3IpdS27ENLj//TpprQzy+/3fP7L0dQcd0WcC5uIx413w3BC6eeXBnhcDncxG115zAz00qzN80QFVoQHnVqBbMmnYMumDaGpSePfgCuGyHGSvZSx4Wk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708530956; c=relaxed/simple; bh=pcOQjZ4LVdwdiO+qHgH6rVC6Hhvx9OK5Hn/Y4aD6RcY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=cosrQ2js7T/2B3xRNpo/KTQ4D2O7HULcWFmXJJEu5E4AOya3DOtThdxtkOsH/OYn+QHtIQos0rZGxdhQz4yXSdTJ1hZgq+ObQIUDtgBubvotofFaIGjiVUXvZ/hLrAO0uU3rXsIhdQjrRfg8iJ5JE8Nd5Y+vTksHd849Sb94XxY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=rurRLuez; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="rurRLuez" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708530953; bh=pcOQjZ4LVdwdiO+qHgH6rVC6Hhvx9OK5Hn/Y4aD6RcY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rurRLuezEUYEhC/UMCsAFtE6II4GwbAF43Zf6idar8r7hf9ZxbwSdrqf+kV8AZTG8 6oZBSlXOt0ME4qoE9MnVjnjtclKq9vBVgFke5OzxKfB2m6ciCmTogiJcKN3d3VkYKc iTXVGL/eysQv5jXOqyFO9lhzU4goOKdCz5PVxkH+ig96bJzbvOMdqXD1njeNqUFUVc 4nmTkEHKL2+HH+w1GaLPlPjfupc4qbAZ1yKgkyf781GGGp5izc6NbuEmkpqKezCtc8 0bZcStGyj38Y2EUdF9OeRJXH4jgK+IktVCqOwsZPc6KMTSxdh/lnpoBq89zyzA9WbR A6MG7L1/MGiVg== 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 madrid.collaboradmins.com (Postfix) with ESMTPSA id 756D23780C13; Wed, 21 Feb 2024 15:55:53 +0000 (UTC) From: Benjamin Gaignard To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl Cc: linux-media@vger.kernel.org, Benjamin Gaignard Subject: [PATCH v8 1/2] v4l2-utils: Add VIDIOC_REMOVE_BUFS ioctl Date: Wed, 21 Feb 2024 16:55:50 +0100 Message-Id: <20240221155551.100156-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240221155551.100156-1-benjamin.gaignard@collabora.com> References: <20240221155551.100156-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add VIDIOC_REMOVE_BUFS ioctl and it associated structure. Define V4L2_BUF_CAP_SUPPORTS_REMOVE_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 397a99e3..a4eb1afd 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_REMOVE_BUFS (1 << 8) /** * struct v4l2_plane - plane info for multi-planar buffers @@ -2564,6 +2565,20 @@ struct v4l2_create_buffers { __u32 reserved[5]; }; +/** + * struct v4l2_remove_buffers - VIDIOC_REMOVE_BUFS argument + * @index: the first buffer to be removed + * @count: number of buffers to removed + * @type: enum v4l2_buf_type + * @reserved: future extensions + */ +struct v4l2_remove_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 * @@ -2663,6 +2678,7 @@ 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_REMOVE_BUFS _IOWR('V', 104, struct v4l2_remove_buffers) /* Reminder: when adding new ioctls please add support for them to drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */