[PATCH i-g-t v2 25/26] lib/unigraf: Add configuration for CRC usage

[Louis Chauvet]

As Unigraf devices are able to compute a CRC for the input image, add a
configuration file option to use them.
---
 lib/unigraf/unigraf.c | 14 ++++++++++++++
 lib/unigraf/unigraf.h |  8 ++++++++
 2 files changed, 22 insertions(+)

diff --git a/lib/unigraf/unigraf.c b/lib/unigraf/unigraf.c
index 9ccd53e55ab5d261d236348fa8a3c7721e87698f..caff77293b6820c8dd179c8abd3def894c3bb879 100644
--- a/lib/unigraf/unigraf.c
+++ b/lib/unigraf/unigraf.c
@@ -22,6 +22,7 @@ static int unigraf_open_count;
 static TSI_HANDLE unigraf_device;
 static char *unigraf_default_edid;
 static char *unigraf_connector_name;
+static bool unigraf_crc;
 
 /**
  * UNIGRAF_NAME_MAX - Maximum name length to be used for TSI functions
@@ -58,6 +59,11 @@ static char *unigraf_connector_name;
  */
 #define UNIGRAF_CONFIG_EDID_NAME "EDID"
 
+/**
+ * UNIGRAF_CONFIG_USE_CRC_NAME - Key of the CRC selection in the configuration file
+ */
+#define UNIGRAF_CONFIG_USE_CRC_NAME "UseCRC"
+
 /**
  * UNIGRAF_DEFAULT_ROLE_NAME - Default role name to search on the unigraf device
  */
@@ -276,6 +282,7 @@ bool unigraf_open_device(void)
 		cfg_role = NULL;
 		cfg_input = NULL;
 		unigraf_connector_name = NULL;
+		unigraf_crc = true;
 	} else {
 		cfg_device = g_key_file_get_string(igt_key_file, cfg_group, UNIGRAF_CONFIG_DEVICE_NAME, &cfg_error);
 		if (cfg_error) {
@@ -310,6 +317,13 @@ bool unigraf_open_device(void)
 			unigraf_debug("No default EDID set, use IGT default.\n");
 			unigraf_connector_name = NULL;
 		}
+
+		cfg_error = NULL;
+		unigraf_crc = g_key_file_get_boolean(igt_key_file, cfg_group, UNIGRAF_CONFIG_USE_CRC_NAME, &cfg_error);
+		if (cfg_error) {
+			unigraf_debug("CRC usage not configured, using unigraf CRC.\n");
+			unigraf_crc = true;
+		}
 	}
 
 	unigraf_assert(TSIX_DEV_RescanDevices(0, TSI_DEVCAP_VIDEO_CAPTURE, 0));
diff --git a/lib/unigraf/unigraf.h b/lib/unigraf/unigraf.h
index 11e483312699fd9f304586bffcc5616c10fb637d..2ff3dc5f3b8b06d2df7d1fd9b58e2b3a9b8b6729 100644
--- a/lib/unigraf/unigraf.h
+++ b/lib/unigraf/unigraf.h
@@ -157,4 +157,12 @@ int unigraf_get_mst_stream_max_count(void);
  */
 void unigraf_read_crc(igt_crc_t *out);
 
+/**
+ * unigraf_use_crc() - Check if Unigraf device should be used for CRC computation
+ *
+ * Returns: true if the Unigraf device should be used for CRC computation,
+ *          false otherwise.
+ */
+bool unigraf_use_crc(void);
+
 #endif // UNIGRAF_H

-- 
2.50.0