From patchwork Thu Dec 15 12:16:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 634340 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 1C8BAC4332F for ; Thu, 15 Dec 2022 12:17:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230174AbiLOMRO (ORCPT ); Thu, 15 Dec 2022 07:17:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230163AbiLOMRL (ORCPT ); Thu, 15 Dec 2022 07:17:11 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5C6D2E9DE; Thu, 15 Dec 2022 04:17:10 -0800 (PST) Received: from desky.lan (91-154-32-225.elisa-laajakaista.fi [91.154.32.225]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 221221837; Thu, 15 Dec 2022 13:17:08 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1671106628; bh=Cbv0CfEc2onUj77PJDrZ/pV314ETPod9lBOtQKlyLVQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gk93o5HaH3B0Gl3eR2nsQOB8OJvEkIABaUsx63mMm77J/AToRaA4PctyeezeqZSJh TLHzFxhyu/98HyQcusHJg4ZM2Z5bup1XGiN43KVREhpSLvABiTV6T4REsFOn79djiS Usd6n/uxMRJu0j4wGnKbJP8d/Ps/JfUziZxbC4C8= From: Tomi Valkeinen To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se, Mauro Carvalho Chehab , Hans Verkuil , satish.nagireddy@getcruise.com, Tomasz Figa Cc: Tomi Valkeinen Subject: [PATCH v16 03/20] media: add V4L2_SUBDEV_CAP_STREAMS Date: Thu, 15 Dec 2022 14:16:17 +0200 Message-Id: <20221215121634.287100-4-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221215121634.287100-1-tomi.valkeinen@ideasonboard.com> References: <20221215121634.287100-1-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 | 5 ++++- include/uapi/linux/v4l2-subdev.h | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index ca5b764d796d..8983d33fdb4b 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -431,6 +431,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg, struct v4l2_subdev *sd = vdev_to_v4l2_subdev(vdev); struct v4l2_fh *vfh = file->private_data; bool ro_subdev = test_bit(V4L2_FL_SUBDEV_RO_DEVNODE, &vdev->flags); + bool streams_subdev = sd->flags & V4L2_SUBDEV_FL_STREAMS; int rval; switch (cmd) { @@ -439,7 +440,9 @@ 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) | + (streams_subdev ? V4L2_SUBDEV_CAP_STREAMS : 0); return 0; } diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h index 658106f5b5dc..89af27f50a41 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 routing and multiplexed streams. */ +#define V4L2_SUBDEV_CAP_STREAMS 0x00000002 + /* Backwards compatibility define --- to be removed */ #define v4l2_subdev_edid v4l2_edid