From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1D55C10E07E for ; Sun, 6 Aug 2023 16:48:07 +0000 (UTC) From: Swati Sharma To: igt-dev@lists.freedesktop.org Date: Sun, 6 Aug 2023 22:17:27 +0530 Message-Id: <20230806164729.1016167-3-swati2.sharma@intel.com> In-Reply-To: <20230806164729.1016167-1-swati2.sharma@intel.com> References: <20230806164729.1016167-1-swati2.sharma@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t 2/4] lib/igt_kms: add helper for dp-mst connector id List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ankit.k.nautiyal@freedesktop.org Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Helper is added which returns dp-mst connector id. Signed-off-by: Swati Sharma --- lib/igt_kms.c | 40 ++++++++++++++++++++++++++++++++++++++++ lib/igt_kms.h | 1 + 2 files changed, 41 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 6034ff70c..c0bfa73fe 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -6050,3 +6050,43 @@ bool igt_check_output_is_dp_mst(int drm_fd, igt_output_t *output) return true; } + +static int parse_path_blob(char *blob_data) +{ + int connector_id; + char *encoder; + + encoder = strtok(blob_data, ":"); + igt_assert_f(!strcmp(encoder, "mst"), "PATH connector property expected to have 'mst'\n"); + + connector_id = atoi(strtok(NULL, "-")); + + return connector_id; +} + +/** + * igt_get_dp_mst_connector_id + * @drmfd: Handle to open drm device + * @output: Target output + * + * Returns: dp-mst connector id. + */ +int igt_get_dp_mst_connector_id(int drm_fd, igt_output_t *output) +{ + drmModePropertyBlobPtr path_blob = NULL; + uint64_t path_blob_id; + drmModeConnector *connector = output->config.connector; + int connector_id; + + igt_assert(kmstest_get_property(drm_fd, connector->connector_id, + DRM_MODE_OBJECT_CONNECTOR, "PATH", NULL, + &path_blob_id, NULL)); + + igt_assert(path_blob = drmModeGetPropertyBlob(drm_fd, path_blob_id)); + + connector_id = parse_path_blob((char *) path_blob->data); + + drmModeFreePropertyBlob(path_blob); + + return connector_id; +} diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 9a46e7a5c..6f978ed55 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -1005,5 +1005,6 @@ bool igt_check_bigjoiner_support(igt_display_t *display); bool igt_parse_mode_string(const char *mode_string, drmModeModeInfo *mode); bool i915_pipe_output_combo_valid(igt_display_t *display); bool igt_check_output_is_dp_mst(int drmfd, igt_output_t *output); +int igt_get_dp_mst_connector_id(int drm_fd, igt_output_t *output); #endif /* __IGT_KMS_H__ */ -- 2.25.1