1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/signal_types.c b/drivers/gpu/drm/amd/display/dc/basics/signal_types.c
new file mode 100644
index 000000000000..44447e07803a
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/basics/signal_types.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/signal_types.h"
+
+bool dc_is_hdmi_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
+}
+
+bool dc_is_dp_sst_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
+		signal == SIGNAL_TYPE_EDP);
+}
+
+bool dc_is_dp_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
+		signal == SIGNAL_TYPE_EDP ||
+		signal == SIGNAL_TYPE_DISPLAY_PORT_MST);
+}
+
+bool dc_is_dp_external_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
+		signal == SIGNAL_TYPE_DISPLAY_PORT_MST);
+}
+
+bool dc_is_analog_signal(enum signal_type signal)
+{
+	switch (signal) {
+	case SIGNAL_TYPE_RGB:
+		return true;
+	break;
+	default:
+		return false;
+	}
+}
+
+bool dc_is_embedded_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS);
+}
+
+bool dc_is_dvi_signal(enum signal_type signal)
+{
+	switch (signal) {
+	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+	case SIGNAL_TYPE_DVI_DUAL_LINK:
+		return true;
+	break;
+	default:
+		return false;
+	}
+}
+
+bool dc_is_dvi_single_link_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK);
+}
+
+bool dc_is_dual_link_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DVI_DUAL_LINK);
+}
+
+bool dc_is_audio_capable_signal(enum signal_type signal)
+{
+	return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
+		signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
+		dc_is_hdmi_signal(signal) ||
+		signal == SIGNAL_TYPE_WIRELESS);
+}
+
+/*
+ * @brief
+ * Returns whether the signal is compatible
+ * with other digital encoder signal types.
+ * This is true for DVI, LVDS, and HDMI signal types.
+ */
+bool dc_is_digital_encoder_compatible_signal(enum signal_type signal)
+{
+	switch (signal) {
+	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+	case SIGNAL_TYPE_DVI_DUAL_LINK:
+	case SIGNAL_TYPE_HDMI_TYPE_A:
+	case SIGNAL_TYPE_LVDS:
+		return true;
+	default:
+		return false;
+	}
+}