From patchwork Wed Aug 10 12:11:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 85314 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1oLkZG-00C9Zx-8Z; Wed, 10 Aug 2022 12:12:10 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232174AbiHJMMF (ORCPT + 1 other); Wed, 10 Aug 2022 08:12:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232172AbiHJMMC (ORCPT ); Wed, 10 Aug 2022 08:12:02 -0400 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 950126AA19 for ; Wed, 10 Aug 2022 05:12:01 -0700 (PDT) Received: from deskari.lan (91-158-154-79.elisa-laajakaista.fi [91.158.154.79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id B0DB944A2; Wed, 10 Aug 2022 14:11:48 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1660133509; bh=S2azRpRgnqcMHpgn5NrUjHPpv3QDEwMrNtWT0sDO1mk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UqTfbUwsJVOPfgFK9uG9hFzJHUBg24AwagiZI2f9ZOSGM3MapMARRrcdv3SfhDfei iOb2YHdhaeqKR1RSzo2SZStwfMQxAp8J83f7hwRKQgtmW7tVHRRaMuTUP9f83Xr7FM EmQyXt5A4ErQ4WtZP8le/y+/xsFCOPaD+U/+qWb0= 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 , Kishon Vijay Abraham , satish.nagireddy@getcruise.com, Tomasz Figa Cc: Tomi Valkeinen Subject: [PATCH v13 18/34] media: add V4L2_SUBDEV_CAP_STREAMS Date: Wed, 10 Aug 2022 15:11:06 +0300 Message-Id: <20220810121122.3149086-19-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220810121122.3149086-1-tomi.valkeinen@ideasonboard.com> References: <20220810121122.3149086-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no 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 5c27bac772ea..90826b956693 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -439,7 +439,9 @@ 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_STREAMS) ? 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