1 files changed, 38 insertions, 0 deletions
diff --git a/include/media/v4l2-mc.h b/include/media/v4l2-mc.h
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+++ b/include/media/v4l2-mc.h
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+/*
+ * v4l2-mc.h - Media Controller V4L2 types and prototypes
+ *
+ * Copyright (C) 2016 Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/**
+ * enum tuner_pad_index - tuner pad index for MEDIA_ENT_F_TUNER
+ *
+ * @TUNER_PAD_RF_INPUT:	Radiofrequency (RF) sink pad, usually linked to a
+ *			RF connector entity.
+ * @TUNER_PAD_OUTPUT:	Tuner output pad. This is actually more complex than
+ *			a single pad output, as, in addition to luminance and
+ *			chrominance IF a tuner may have internally an
+ *			audio decoder (like xc3028) or it may produce an audio
+ *			IF that will be used by an audio decoder like msp34xx.
+ *			It may also have an IF-PLL demodulator on it, like
+ *			tuners with tda9887. Yet, currently, we don't need to
+ *			represent all the dirty details, as this is transparent
+ *			for the V4L2 API usage. So, let's represent all kinds
+ *			of different outputs as a single source pad.
+ * @TUNER_NUM_PADS:	Number of pads of the tuner.
+ */
+enum tuner_pad_index {
+	TUNER_PAD_RF_INPUT,
+	TUNER_PAD_OUTPUT,
+	TUNER_NUM_PADS
+};
+\ No newline at end of file