From patchwork Sat Nov 21 02:56:50 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Kasireddy X-Patchwork-Id: 7673281 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 647589F2E2 for ; Sat, 21 Nov 2015 03:00:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9C6B2203FB for ; Sat, 21 Nov 2015 03:00:24 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 5DE64203F7 for ; Sat, 21 Nov 2015 03:00:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 59DD86E2CF; Fri, 20 Nov 2015 19:00:21 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id D86826E2CF for ; Fri, 20 Nov 2015 19:00:19 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP; 20 Nov 2015 19:00:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,326,1444719600"; d="scan'208";a="856468901" Received: from orsmsx108.amr.corp.intel.com ([10.22.240.6]) by fmsmga002.fm.intel.com with ESMTP; 20 Nov 2015 19:00:19 -0800 Received: from vkasired-desk2.fm.intel.com (10.22.254.140) by ORSMSX108.amr.corp.intel.com (10.22.240.6) with Microsoft SMTP Server (TLS) id 14.3.248.2; Fri, 20 Nov 2015 19:00:18 -0800 From: Vivek Kasireddy To: Date: Fri, 20 Nov 2015 18:56:50 -0800 Message-ID: <1448074610-8661-1-git-send-email-vivek.kasireddy@intel.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.22.254.140] Cc: Vivek Kasireddy , Thomas Wood Subject: [Intel-gfx] [PATCH i-g-t v2] lib/igt_kms: Introduce get_first_connected_output macro X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In some cases, we just need one valid (connected) output to perform a test. This macro can help in these situations by not having to put the test code inside a for loop that iterates over all the outputs. v2: Added a brief documentation for this macro. Suggested-by: Matt Roper Cc: Thomas Wood Signed-off-by: Vivek Kasireddy --- lib/igt_kms.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 965c47c..a0bb066 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -279,6 +279,18 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe); for (int i__ = 0; (plane) = &(display)->pipes[(pipe)].planes[i__], \ i__ < (display)->pipes[(pipe)].n_planes; i__++) +/** + * get_first_connected_output: + * @display: Initialized igt_display_t type object + * @output: igt_output_t type object + * + * Returns: First valid (connected) output. + */ +#define get_first_connected_output(display, output) \ + for (int i__ = 0; i__ < (display)->n_outputs; i__++) \ + if ((output = &(display)->outputs[i__]), output->valid) \ + break + #define IGT_FIXED(i,f) ((i) << 16 | (f)) void igt_enable_connectors(void);