1 files changed, 76 insertions, 0 deletions
diff --git a/drmtools.c b/drmtools.c
new file mode 100644
index 0000000..46f321a
--- /dev/null
+++ b/drmtools.c
@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include <sys/ioctl.h>
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "drmtools.h"
+
+/* ------------------------------------------------------------------ */
+
+static const char *conn_type[] = {
+    [ DRM_MODE_CONNECTOR_Unknown      ] = "Unknown",
+    [ DRM_MODE_CONNECTOR_VGA          ] = "VGA",
+    [ DRM_MODE_CONNECTOR_DVII         ] = "DVII",
+    [ DRM_MODE_CONNECTOR_DVID         ] = "DVID",
+    [ DRM_MODE_CONNECTOR_DVIA         ] = "DVIA",
+    [ DRM_MODE_CONNECTOR_Composite    ] = "Composite",
+    [ DRM_MODE_CONNECTOR_SVIDEO       ] = "SVIDEO",
+    [ DRM_MODE_CONNECTOR_LVDS         ] = "LVDS",
+    [ DRM_MODE_CONNECTOR_Component    ] = "Component",
+    [ DRM_MODE_CONNECTOR_9PinDIN      ] = "9PinDIN",
+    [ DRM_MODE_CONNECTOR_DisplayPort  ] = "DisplayPort",
+    [ DRM_MODE_CONNECTOR_HDMIA        ] = "HDMIA",
+    [ DRM_MODE_CONNECTOR_HDMIB        ] = "HDMIB",
+    [ DRM_MODE_CONNECTOR_TV           ] = "TV",
+    [ DRM_MODE_CONNECTOR_eDP          ] = "eDP",
+    [ DRM_MODE_CONNECTOR_VIRTUAL      ] = "VIRTUAL",
+    [ DRM_MODE_CONNECTOR_DSI          ] = "DSI",
+};
+
+static const char *conn_mode[] = {
+    [ DRM_MODE_CONNECTED         ] = "connected",
+    [ DRM_MODE_DISCONNECTED      ] = "disconnected",
+    [ DRM_MODE_UNKNOWNCONNECTION ] = "unknown",
+};
+
+static const char *enc_type[] = {
+    [ DRM_MODE_ENCODER_NONE         ] = "NONE",
+    [ DRM_MODE_ENCODER_DAC          ] = "DAC",
+    [ DRM_MODE_ENCODER_TMDS         ] = "TMDS",
+    [ DRM_MODE_ENCODER_LVDS         ] = "LVDS",
+    [ DRM_MODE_ENCODER_TVDAC        ] = "TVDAC",
+    [ DRM_MODE_ENCODER_VIRTUAL      ] = "VIRTUAL",
+    [ DRM_MODE_ENCODER_DSI          ] = "DSI",
+};
+
+static const char *enum2name(const char *names[], int len, int nr)
+{
+    if (nr >= len)
+        return "???";
+    if (!names[nr])
+        return "???";
+    return names[nr];
+}
+
+const char *drm_connector_type_name(int nr)
+{
+    return enum2name(conn_type, sizeof(conn_type)/sizeof(conn_type[0]), nr);
+}
+
+const char *drm_connector_mode_name(int nr)
+{
+    return enum2name(conn_mode, sizeof(conn_mode)/sizeof(conn_mode[0]), nr);
+}
+
+const char *drm_encoder_type_name(int nr)
+{
+    return enum2name(enc_type, sizeof(enc_type)/sizeof(enc_type[0]), nr);
+}