From 93a5788758bf97e1017c34fbda54e1e66f301f32 Mon Sep 17 00:00:00 2001
From: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Date: Thu, 9 Sep 2021 14:26:39 +0200
Subject: [PATCH 1/4] tests/modetest: automatic configuration
MIME-Version: 1.0
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Add a new option to set automatically a mode using default crtc,
encoder and mode.

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
---
 tests/modetest/modetest.c | 54 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 52 insertions(+), 2 deletions(-)

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index 2c83bd0..f11095b 100644
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -1990,7 +1990,7 @@ static void parse_fill_patterns(char *arg)
 
 static void usage(char *name)
 {
-	fprintf(stderr, "usage: %s [-acDdefMPpsCvrw]\n", name);
+	fprintf(stderr, "usage: %s [-acDdefMPpsCvrwA]\n", name);
 
 	fprintf(stderr, "\n Query options:\n\n");
 	fprintf(stderr, "\t-c\tlist connectors\n");
@@ -2012,12 +2012,13 @@ static void usage(char *name)
 	fprintf(stderr, "\t-d\tdrop master after mode set\n");
 	fprintf(stderr, "\t-M module\tuse the given driver\n");
 	fprintf(stderr, "\t-D device\tuse the given device\n");
+	fprintf(stderr, "\t-A Set a mode using default crtc, encoder and mode.\n");
 
 	fprintf(stderr, "\n\tDefault is to dump all info.\n");
 	exit(0);
 }
 
-static char optstr[] = "acdD:efF:M:P:ps:Cvrw:";
+static char optstr[] = "acdD:efF:M:P:ps:Cvrw:A";
 
 int main(int argc, char **argv)
 {
@@ -2039,6 +2040,7 @@ int main(int argc, char **argv)
 	struct plane_arg *plane_args = NULL;
 	struct property_arg *prop_args = NULL;
 	unsigned int args = 0;
+	bool auto_configuration = false;
 	int ret;
 
 	memset(&dev, 0, sizeof dev);
@@ -2133,12 +2135,18 @@ int main(int argc, char **argv)
 
 			prop_count++;
 			break;
+		case 'A':
+			auto_configuration = true;
+			break;
 		default:
 			usage(argv[0]);
 			break;
 		}
 	}
 
+	if (auto_configuration)
+		use_atomic = false;
+
 	/* Dump all the details when no* arguments are provided. */
 	if (!args)
 		encoders = connectors = crtcs = planes = framebuffers = 1;
@@ -2201,6 +2209,48 @@ int main(int argc, char **argv)
 				return 1;
 			}
 
+#define connector_status_connected 1
+			if (auto_configuration)	{
+				struct resources *resources = dev.resources;
+				drmModeConnector *connector;
+				char auto_arg[32];
+				int j;
+
+				if (!resources->count_connectors ||
+				    !resources->count_crtcs) {
+					fprintf(stderr, "Cannot find connector or crtc\n");
+					return 1;
+				}
+
+				for (j = 0; j < resources->count_connectors; j++) {
+					connector = resources->connectors[j].connector;
+					if(connector->connection == connector_status_connected)
+						break;
+				}
+
+				if (!connector->count_modes) {
+					fprintf(stderr, "Cannot find mode\n");
+					return 1;
+				}
+
+				snprintf(auto_arg, sizeof(auto_arg) - 1, "%d@%d:%s-%d@%s\n",
+					 connector->connector_id, resources->crtcs[0].crtc->crtc_id,
+					 connector->modes[0].name, connector->modes[0].vrefresh,
+					 "XR24");
+
+				pipe_args = realloc(pipe_args, sizeof *pipe_args);
+				if (pipe_args == NULL) {
+					fprintf(stderr, "memory allocation failed\n");
+					return 2;
+				}
+				memset(&pipe_args[count], 0, sizeof(*pipe_args));
+
+				if (parse_connector(&pipe_args[count], auto_arg) < 0)
+					return 3;
+				/* fix to one plane without atomic */
+				count = 1;
+			}
+
 			if (set_preferred || count)
 				set_mode(&dev, pipe_args, count);
 
-- 
2.25.1