From patchwork Mon Jan 18 16:17:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Anaszewski X-Patchwork-Id: 32662 X-Patchwork-Delegate: laurent.pinchart@ideasonboard.com Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.84) (envelope-from ) id 1aLCWI-0005Mr-8w; Mon, 18 Jan 2016 16:19:06 +0000 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.76/mailfrontend-6) with esmtp id 1aLCWG-0002Ju-4D; Mon, 18 Jan 2016 17:19:06 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932162AbcARQTB (ORCPT + 1 other); Mon, 18 Jan 2016 11:19:01 -0500 Received: from mailout2.samsung.com ([203.254.224.25]:39931 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932123AbcARQTA (ORCPT ); Mon, 18 Jan 2016 11:19:00 -0500 Received: from epcpsbgm2new.samsung.com (epcpsbgm2 [203.254.230.27]) by mailout2.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0O1500UJKPBNT420@mailout2.samsung.com> for linux-media@vger.kernel.org; Tue, 19 Jan 2016 01:18:59 +0900 (KST) X-AuditID: cbfee61b-f793c6d00000236c-bd-569d1073b989 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2new.samsung.com (EPCPMTA) with SMTP id 7C.59.09068.3701D965; Tue, 19 Jan 2016 01:18:59 +0900 (KST) Received: from AMDC2362.DIGITAL.local ([106.120.53.23]) by mmp2.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0O15003TLP9I9Y00@mmp2.samsung.com>; Tue, 19 Jan 2016 01:18:59 +0900 (KST) From: Jacek Anaszewski To: linux-media@vger.kernel.org Cc: sakari.ailus@linux.intel.com, laurent.pinchart@ideasonboard.com, gjasny@googlemail.com, hdegoede@redhat.com, hverkuil@xs4all.nl, Jacek Anaszewski Subject: [PATCH 12/15] mediactl: libv4l2subdev: add get_pipeline_entity_by_cid function Date: Mon, 18 Jan 2016 17:17:37 +0100 Message-id: <1453133860-21571-13-git-send-email-j.anaszewski@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1453133860-21571-1-git-send-email-j.anaszewski@samsung.com> References: <1453133860-21571-1-git-send-email-j.anaszewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPLMWRmVeSWpSXmKPExsVy+t9jQd1igblhBkdua1tMnzKL0eLN8elM FqcmP2Oy6L36nNGic+ISdoueDVtZLT5t+cbkwO7xdMJkdo/ZHTNZPeadDPR4v+8qm0ffllWM Hp83yXmc+vqZPYA9issmJTUnsyy1SN8ugSvjcFNNQT9/xddz35gaGM/zdDFyckgImEjcePWL BcIWk7hwbz1bFyMXh5DALEaJ3VMOs0I4Pxklll/sZQSpYhMwlPj54jUTiC0iIC/xpPcGWAez wBZGibt3FrGDJIQFIiW+/fgP1sAioCqx6uwVsAZeAU+Jbb+eA9VwAK1TkJgzyQYkzAkUfnNz PxuILSTgIXHg7lbmCYy8CxgZVjFKpBYkFxQnpeca5aWW6xUn5haX5qXrJefnbmIEB9sz6R2M h3e5H2IU4GBU4uF1ODs7TIg1say4MvcQowQHs5II7yGOuWFCvCmJlVWpRfnxRaU5qcWHGKU5 WJTEefddigwTEkhPLEnNTk0tSC2CyTJxcEo1MJYsv1bWmlSWL2NYZrbdo/V8ikO8HTuX5NMU 6Qzv7+n/trDcWGGVZbyAU6Peuu4yQ/5JkVqLdt+Zrxd9DuA8suZZietLyYsLCp3eZnaWy0hH 9TNt2Xl756c03h166uvXdl+8wf7Lk1VJQl0teu46p4SHjqesFXcZnn0nm8y0dblG9ssH5qUr lFiKMxINtZiLihMB9ou/+DICAAA= 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: 2016.1.18.160917 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, NO_URI_HTTPS 0, REFERENCES 0, SINGLE_URI_IN_BODY 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __REFERENCES 0, __SANE_MSGID 0, __SINGLE_URI_TEXT 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_IN_BODY 0, __URI_NO_WWW 0, __URI_NS ' Add a function for obtaining the v4l2 sub-device for which the v4l2 control related ioctl is predestined. Signed-off-by: Jacek Anaszewski Acked-by: Kyungmin Park --- utils/media-ctl/libv4l2subdev.c | 14 ++++++++++++++ utils/media-ctl/v4l2subdev.h | 15 +++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/utils/media-ctl/libv4l2subdev.c b/utils/media-ctl/libv4l2subdev.c index 9d48ac1..14e9423 100644 --- a/utils/media-ctl/libv4l2subdev.c +++ b/utils/media-ctl/libv4l2subdev.c @@ -1052,3 +1052,17 @@ bool v4l2_subdev_has_v4l2_control_redir(struct media_device *media, return false; } + +struct media_entity *v4l2_subdev_get_pipeline_entity_by_cid(struct media_device *media, + int cid) +{ + struct media_entity *entity = media->pipeline; + + while (entity) { + if (v4l2_subdev_has_v4l2_control_redir(media, entity, cid)) + return entity; + entity = entity->next; + } + + return NULL; +} diff --git a/utils/media-ctl/v4l2subdev.h b/utils/media-ctl/v4l2subdev.h index be2d82e..607ec50 100644 --- a/utils/media-ctl/v4l2subdev.h +++ b/utils/media-ctl/v4l2subdev.h @@ -394,4 +394,19 @@ enum v4l2_subdev_fmt_mismatch v4l2_subdev_format_compare( bool v4l2_subdev_has_v4l2_control_redir(struct media_device *media, struct media_entity *entity, int ctrl_id); +/** + * @brief Get the first pipeline entity supporting the control + * @param media - media device. + * @param cid - v4l2 control identifier. + * + * Get the first entity in the media device pipeline, + * for which v4l2_control with cid is to be redirected + * + * @return associated entity if defined, or NULL if the + * control redirection wasn't defined for any entity + * in the pipeline + */ +struct media_entity *v4l2_subdev_get_pipeline_entity_by_cid( + struct media_device *media, int cid); + #endif