lib/igt_kms: move some of the useful dump functions to igt_kms

Some of the functions inside the intel_dp_compliance are
generic and can be used by other modules as well. Move these
to the igt_kms lib.

changes in v2:
	- add more documentation for the new APIs in the lib

Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>

1 files changed, 108 insertions, 0 deletions

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 7cf2008e..4023811a 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
  * Copyright © 2013 Intel Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -4778,3 +4779,110 @@ uint32_t igt_reduce_format(uint32_t format)
 		return format;
 	}
 }
+
+/**
+ * igt_dump_connectors_fd:
+ * @drmfd: handle to open drm device.
+ *
+ * Iterates through list of connectors and
+ * dumps their list of modes.
+ *
+ */
+void igt_dump_connectors_fd(int drmfd)
+{
+	int i, j;
+
+	drmModeRes *mode_resources = drmModeGetResources(drmfd);
+
+	if (!mode_resources) {
+		igt_warn("drmModeGetResources failed: %s\n", strerror(errno));
+		return;
+	}
+
+	igt_info("Connectors:\n");
+	igt_info("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\n");
+	for (i = 0; i < mode_resources->count_connectors; i++) {
+		drmModeConnector *connector;
+
+		connector = drmModeGetConnectorCurrent(drmfd,
+				mode_resources->connectors[i]);
+		if (!connector) {
+			igt_warn("Could not get connector %i: %s\n",
+				 mode_resources->connectors[i],
+				 strerror(errno));
+			continue;
+		}
+
+		igt_info("%d\t%d\t%s\t%s\t%dx%d\t\t%d\n",
+			 connector->connector_id,
+			 connector->encoder_id,
+			 kmstest_connector_status_str(connector->connection),
+			 kmstest_connector_type_str(connector->connector_type),
+			 connector->mmWidth,
+			 connector->mmHeight,
+			 connector->count_modes);
+
+		if (!connector->count_modes)
+			continue;
+
+		igt_info("  Modes:\n");
+		igt_info("  name refresh (Hz) hdisp hss hse htot vdisp ""vss vse vtot flags type clock\n");
+		for (j = 0; j < connector->count_modes; j++) {
+			igt_info("[%d]", j);
+			kmstest_dump_mode(&connector->modes[j]);
+		}
+
+		drmModeFreeConnector(connector);
+	}
+	igt_info("\n");
+
+	drmModeFreeResources(mode_resources);
+}
+
+/**
+ * igt_dump_crtcs_fd:
+ * @drmfd: handle to open drm device.
+ *
+ * Iterates through the list of crtcs and
+ * dumps out the mode and basic information
+ * for each of them.
+ */
+void igt_dump_crtcs_fd(int drmfd)
+{
+	int i;
+	drmModeRes *mode_resources;
+
+	mode_resources = drmModeGetResources(drmfd);
+	if (!mode_resources) {
+		igt_warn("drmModeGetResources failed: %s\n", strerror(errno));
+		return;
+	}
+
+	igt_info("CRTCs:\n");
+	igt_info("id\tfb\tpos\tsize\n");
+	for (i = 0; i < mode_resources->count_crtcs; i++) {
+		drmModeCrtc *crtc;
+
+		crtc = drmModeGetCrtc(drmfd, mode_resources->crtcs[i]);
+		if (!crtc) {
+			igt_warn("Could not get crtc %i: %s\n",
+					mode_resources->crtcs[i],
+					strerror(errno));
+			continue;
+		}
+		igt_info("%d\t%d\t(%d,%d)\t(%dx%d)\n",
+			 crtc->crtc_id,
+			 crtc->buffer_id,
+			 crtc->x,
+			 crtc->y,
+			 crtc->width,
+			 crtc->height);
+
+		kmstest_dump_mode(&crtc->mode);
+
+		drmModeFreeCrtc(crtc);
+	}
+	igt_info("\n");
+
+	drmModeFreeResources(mode_resources);
+}