[igt-dev] [PATCH] lib/igt_chamelium: Only plug in the ports configured in the config file

[Mark Yacoub]

[Why]
Some Chamelium setups do not have all ports connected.
On current Chamelium V3, the hardware is limited to only plug in 1 port
at time. [hardware bug is to be fixed]
When all prompted to be connected, plugging any port will unplug
everything before it, which is not what we want.

[How]
Iterate over the ~/.igtrc config file and only plug the ports there.
This guarantees that each setup is in control of what makes the most
sense for it.

Test: ./kms_chamelium --run-subtest dp-hp
Tested on: Volteer & cv3

Signed-off-by: Mark Yacoub <markyacoub at chromium.org>
---
 lib/igt_chamelium.c | 30 ++++++++++++++++++++----------
 lib/igt_chamelium.h |  2 +-
 lib/igt_kms.c       |  2 +-
 3 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c
index 55cbfa12..c7b99ebc 100644
--- a/lib/igt_chamelium.c
+++ b/lib/igt_chamelium.c
@@ -2830,25 +2830,35 @@ void chamelium_deinit(struct chamelium *chamelium)
 	chamelium_deinit_rpc_only(chamelium);
 }
 
-bool chamelium_plug_all(struct chamelium *chamelium)
+bool chamelium_plug_all_connected(struct chamelium* chamelium)
 {
-	size_t port_count;
-	int port_ids[CHAMELIUM_MAX_PORTS];
-	xmlrpc_value *v;
+	/* Iterate over all ports in the config file and plug them all. */
+	char** group_list = g_key_file_get_groups(igt_key_file, NULL);
+	int i;
+
+	for (i = 0; group_list[i] != NULL; i++) {
+		int port_id;
+		GError* error = NULL;
+		xmlrpc_value* v;
+		char* group = group_list[i];
+
+
+		if (!strstr(group, "Chamelium:"))
+			continue;
+
+		port_id = g_key_file_get_integer(igt_key_file, group,
+			"ChameliumPortID",
+			&error);
 
-	port_count = chamelium_get_video_ports(chamelium, port_ids);
-	if (port_count <= 0)
-		return false;
 
-	for (int i = 0; i < port_count; ++i) {
-		v = __chamelium_rpc(chamelium, NULL, "Plug", "(i)", port_ids[i]);
+		v = __chamelium_rpc(chamelium, NULL, "Plug", "(i)", port_id);
 
 		if (v != NULL)
 			xmlrpc_DECREF(v);
 
 		if (chamelium->env.fault_occurred) {
 			igt_debug("Chamelium RPC call failed: %s\n",
-			     chamelium->env.fault_string);
+				chamelium->env.fault_string);
 
 			return false;
 		}
diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h
index f40e848e..78985469 100644
--- a/lib/igt_chamelium.h
+++ b/lib/igt_chamelium.h
@@ -244,7 +244,7 @@ void chamelium_crop_analog_frame(struct chamelium_frame_dump *dump, int width,
 void chamelium_destroy_frame_dump(struct chamelium_frame_dump *dump);
 void chamelium_destroy_audio_file(struct chamelium_audio_file *audio_file);
 void chamelium_infoframe_destroy(struct chamelium_infoframe *infoframe);
-bool chamelium_plug_all(struct chamelium *chamelium);
+bool chamelium_plug_all_connected(struct chamelium *chamelium);
 bool chamelium_wait_all_configured_ports_connected(struct chamelium *chamelium,
 						   int drm_fd);
 
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index d8867f09..81eb1881 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -2349,7 +2349,7 @@ void igt_display_require(igt_display_t *display, int drm_fd)
 		if (chamelium) {
 			igt_abort_on_f(!chamelium_wait_reachable(chamelium, 20),
 				       "cannot reach the configured chamelium!\n");
-			igt_abort_on_f(!chamelium_plug_all(chamelium),
+			igt_abort_on_f(!chamelium_plug_all_connected(chamelium),
 				       "failed to plug all the chamelium ports!\n");
 			igt_abort_on_f(!chamelium_wait_all_configured_ports_connected(chamelium, drm_fd),
 				       "not all configured chamelium ports are connected!\n");
-- 
2.37.0.170.g444d1eabd0-goog