From patchwork Tue Mar 1 16:11:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 547433 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 E06D2C433EF for ; Tue, 1 Mar 2022 16:12:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236049AbiCAQNe (ORCPT ); Tue, 1 Mar 2022 11:13:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236048AbiCAQNc (ORCPT ); Tue, 1 Mar 2022 11:13:32 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E31533BBEA for ; Tue, 1 Mar 2022 08:12:50 -0800 (PST) Received: from deskari.lan (91-156-85-209.elisa-laajakaista.fi [91.156.85.209]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5752A1BBB; Tue, 1 Mar 2022 17:12:37 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1646151158; bh=OP2EcLuIJMm5cmkwnj7BlywHWloY8TNqvlD/4c3mUi4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g3ic5GSKQZrsl/640fr+mkL7H5OmLbDAqK1A60I02UjcwKRpkC9fc6HCg7bwdfj8C aKFGJ/XQ6qDQmiLgzcvAYps+NZnYd+W2JZe54NAYgvVLabOggYWoDU/peZemHTyRCI AGehQY4XeivQGDv47CETY6cnPrxxRmzcIYNadYjo= From: Tomi Valkeinen To: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se, Mauro Carvalho Chehab , Hans Verkuil , Pratyush Yadav Cc: Tomi Valkeinen Subject: [PATCH v11 20/36] media: add V4L2_SUBDEV_CAP_MPLEXED Date: Tue, 1 Mar 2022 18:11:40 +0200 Message-Id: <20220301161156.1119557-21-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220301161156.1119557-1-tomi.valkeinen@ideasonboard.com> References: <20220301161156.1119557-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add a subdev capability flag to expose to userspace if a subdev supports multiplexed streams. Signed-off-by: Tomi Valkeinen --- drivers/media/v4l2-core/v4l2-subdev.c | 4 +++- include/uapi/linux/v4l2-subdev.h | 3 +++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index fda0925afeb3..3ad24093abe9 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -399,7 +399,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg, memset(cap->reserved, 0, sizeof(cap->reserved)); cap->version = LINUX_VERSION_CODE; - cap->capabilities = ro_subdev ? V4L2_SUBDEV_CAP_RO_SUBDEV : 0; + cap->capabilities = + (ro_subdev ? V4L2_SUBDEV_CAP_RO_SUBDEV : 0) | + ((sd->flags & V4L2_SUBDEV_FL_MULTIPLEXED) ? V4L2_SUBDEV_CAP_MPLEXED : 0); return 0; } diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h index 658106f5b5dc..d91ab6f22fa7 100644 --- a/include/uapi/linux/v4l2-subdev.h +++ b/include/uapi/linux/v4l2-subdev.h @@ -188,6 +188,9 @@ struct v4l2_subdev_capability { /* The v4l2 sub-device video device node is registered in read-only mode. */ #define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001 +/* The v4l2 sub-device supports multiplexed streams. */ +#define V4L2_SUBDEV_CAP_MPLEXED 0x00000002 + /* Backwards compatibility define --- to be removed */ #define v4l2_subdev_edid v4l2_edid