From patchwork Wed Oct 12 14:35:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Anaszewski X-Patchwork-Id: 37454 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1buKnw-0001PL-5Q; Wed, 12 Oct 2016 14:46:48 +0000 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.84_2/mailfrontend-7) with esmtp id 1buKnu-0008EY-03; Wed, 12 Oct 2016 16:46:48 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933677AbcJLOqo (ORCPT + 1 other); Wed, 12 Oct 2016 10:46:44 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:45639 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933642AbcJLOqn (ORCPT ); Wed, 12 Oct 2016 10:46:43 -0400 Received: from epcpsbgm1new.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0OEX01FZBV7FY8A0@mailout1.samsung.com> for linux-media@vger.kernel.org; Wed, 12 Oct 2016 23:35:39 +0900 (KST) X-AuditID: cbfee61a-f79786d000004c78-30-57fe4a3b7261 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1new.samsung.com (EPCPMTA) with SMTP id 50.E8.19576.B3A4EF75; Wed, 12 Oct 2016 23:35:39 +0900 (KST) Received: from AMDC2362.DIGITAL.local ([106.120.53.23]) by mmp1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0OEX00HXUV70WM50@mmp1.samsung.com>; Wed, 12 Oct 2016 23:35:39 +0900 (KST) From: Jacek Anaszewski To: linux-media@vger.kernel.org Cc: sakari.ailus@linux.intel.com, hverkuil@xs4all.nl, mchehab@kernel.org, m.szyprowski@samsung.com, s.nawrocki@samsung.com, Jacek Anaszewski Subject: [PATCH v4l-utils v7 3/7] mediactl: Add media_entity_get_backlinks() Date: Wed, 12 Oct 2016 16:35:18 +0200 Message-id: <1476282922-11544-4-git-send-email-j.anaszewski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1476282922-11544-1-git-send-email-j.anaszewski@samsung.com> References: <1476282922-11544-1-git-send-email-j.anaszewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDLMWRmVeSWpSXmKPExsVy+t9jAV1rr3/hBt9/W1icmvyMyaL36nNG i54NW1kt1h65y26xbNMfJovDb9pZLT5t+cbkwO6xaVUnm8e8k4EefVtWMXp83iTncerrZ/YA 1ig3m4zUxJTUIoXUvOT8lMy8dFul0BA3XQslhbzE3FRbpQhd35AgJYWyxJxSIM/IAA04OAe4 Byvp2yW4Zcy5sZm54JdwxbQPdxkbGI8KdDFyckgImEhs2vmaBcIWk7hwbz1bFyMXh5DAUkaJ ud/6GSGcn4wSV2+vYgWpYhMwlPj54jUTiC0iIC/xpPcGG4jNLLCaUeLishQQW1jAR+Jx60Ww GhYBVYlJ7x4xg9i8Ah4SD/ZMZ4XYJidx8thkMJtTwFPi0+eXYHOEgGrO7DvEOoGRdwEjwypG idSC5ILipPRcw7zUcr3ixNzi0rx0veT83E2M4JB+JrWD8eAu90OMAhyMSjy8Al//hAuxJpYV V+YeYpTgYFYS4Q12+xcuxJuSWFmVWpQfX1Sak1p8iNEU6LCJzFKiyfnAeMsriTc0MTcxNzaw MLe0NDFSEudtnP0sXEggPbEkNTs1tSC1CKaPiYNTqoFR3Dror6my6OwJWQIWM/d0fs940fTn Of9iVtnJaQXxq9gfSyVufv7p3B1R/uwStaObdTlLvrl4FVe+iVa9fP/zr+KayFn3mfJ6+kpZ ZmukXf8a4mOg6fM0am7K45PLhd2eXlpd+LbtVoSrreDe1RViiSKZXAVnTy++OOPCh5lBX15/ +pHZqVOtxFKckWioxVxUnAgAeU9grX8CAAA= X-MTR: 20000000000000000@CPGS Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.10.12.143916 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_2000_2999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, IN_REP_TO 0, LEGITIMATE_NEGATE 0, LEGITIMATE_SIGNS 0, MSG_THREAD 0, MULTIPLE_REAL_RCPTS 0, NO_URI_HTTPS 0, REFERENCES 0, SINGLE_URI_IN_BODY 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CC_NAME 0, __CC_NAME_DIFF_FROM_ACC 0, __CC_REAL_NAMES 0, __CP_MEDIA_BODY 0, __CP_URI_IN_BODY 0, __HAS_CC_HDR 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MIME_TEXT_P 0, __MIME_TEXT_P1 0, __MULTIPLE_RCPTS_CC_X2 0, __REFERENCES 0, __SANE_MSGID 0, __SINGLE_URI_TEXT 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_IN_BODY 0, __URI_NO_WWW 0, __URI_NS , __URI_WITH_PATH 0' Add a new graph helper useful for discovering video pipeline. Signed-off-by: Jacek Anaszewski Acked-by: Kyungmin Park --- utils/media-ctl/libmediactl.c | 21 +++++++++++++++++++++ utils/media-ctl/mediactl.h | 15 +++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/utils/media-ctl/libmediactl.c b/utils/media-ctl/libmediactl.c index 91ed003..155b65f 100644 --- a/utils/media-ctl/libmediactl.c +++ b/utils/media-ctl/libmediactl.c @@ -36,6 +36,7 @@ #include #include +#include #include #include "mediactl.h" @@ -172,6 +173,26 @@ const struct media_entity_desc *media_entity_get_info(struct media_entity *entit return &entity->info; } +int media_entity_get_backlinks(struct media_entity *entity, + struct media_link **backlinks, + unsigned int *num_backlinks) +{ + unsigned int num_bklinks = 0; + int i; + + if (entity == NULL || backlinks == NULL || num_backlinks == NULL) + return -EINVAL; + + for (i = 0; i < entity->num_links; ++i) + if ((entity->links[i].flags & MEDIA_LNK_FL_ENABLED) && + (entity->links[i].sink->entity == entity)) + backlinks[num_bklinks++] = &entity->links[i]; + + *num_backlinks = num_bklinks; + + return 0; +} + /* ----------------------------------------------------------------------------- * Open/close */ diff --git a/utils/media-ctl/mediactl.h b/utils/media-ctl/mediactl.h index 336cbf9..b1f33cd 100644 --- a/utils/media-ctl/mediactl.h +++ b/utils/media-ctl/mediactl.h @@ -434,6 +434,20 @@ int media_parse_setup_link(struct media_device *media, int media_parse_setup_links(struct media_device *media, const char *p); /** + * @brief Get entity's enabled backlinks + * @param entity - media entity. + * @param backlinks - array of pointers to matching backlinks. + * @param num_backlinks - number of matching backlinks. + * + * Get links that are connected to the entity sink pads. + * + * @return 0 on success, or a negative error code on failure. + */ +int media_entity_get_backlinks(struct media_entity *entity, + struct media_link **backlinks, + unsigned int *num_backlinks); + +/** * @brief Get v4l2_subdev for the entity * @param entity - media entity * @@ -443,4 +457,5 @@ int media_parse_setup_links(struct media_device *media, const char *p); */ struct v4l2_subdev *media_entity_get_v4l2_subdev(struct media_entity *entity); + #endif