From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/media/v4l2-core/tuner-core.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 54 insertions(+), 1 deletions(-)
diff --git a/kernel/drivers/media/v4l2-core/tuner-core.c b/kernel/drivers/media/v4l2-core/tuner-core.c
index 7f858c3..12d1e0c 100644
--- a/kernel/drivers/media/v4l2-core/tuner-core.c
+++ b/kernel/drivers/media/v4l2-core/tuner-core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* i2c tv tuner chip device driver
* core core, i.e. kernel interfaces, registering and so on
@@ -94,8 +95,55 @@
} while (0)
/*
- * Internal struct used inside the driver
+ * Internal enums/struct used inside the driver
*/
+
+/**
+ * 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 video output source pad. Contains the video chrominance
+ * and luminance or the hole bandwidth of the signal converted to
+ * an Intermediate Frequency (IF) or to baseband (on zero-IF tuners).
+ * @TUNER_PAD_AUD_OUT:
+ * Tuner audio output source pad. Tuners used to decode analog TV
+ * signals have an extra pad for audio output. Old tuners use an
+ * analog stage with a saw filter for the audio IF frequency. The
+ * output of the pad is, in this case, the audio IF, with should be
+ * decoded either by the bridge chipset (that's the case of cx2388x
+ * chipsets) or may require an external IF sound processor, like
+ * msp34xx. On modern silicon tuners, the audio IF decoder is usually
+ * incorporated at the tuner. On such case, the output of this pad
+ * is an audio sampled data.
+ * @TUNER_NUM_PADS:
+ * Number of pads of the tuner.
+ */
+enum tuner_pad_index {
+ TUNER_PAD_RF_INPUT,
+ TUNER_PAD_OUTPUT,
+ TUNER_PAD_AUD_OUT,
+ TUNER_NUM_PADS
+};
+
+/**
+ * enum if_vid_dec_pad_index - video IF-PLL pad index
+ * for MEDIA_ENT_F_IF_VID_DECODER
+ *
+ * @IF_VID_DEC_PAD_IF_INPUT:
+ * video Intermediate Frequency (IF) sink pad
+ * @IF_VID_DEC_PAD_OUT:
+ * IF-PLL video output source pad. Contains the video chrominance
+ * and luminance IF signals.
+ * @IF_VID_DEC_PAD_NUM_PADS:
+ * Number of pads of the video IF-PLL.
+ */
+enum if_vid_dec_pad_index {
+ IF_VID_DEC_PAD_IF_INPUT,
+ IF_VID_DEC_PAD_OUT,
+ IF_VID_DEC_PAD_NUM_PADS
+};
struct tuner {
/* device */
@@ -685,15 +733,20 @@
*/
if (t->type == TUNER_TDA9887) {
t->pad[IF_VID_DEC_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
+ t->pad[IF_VID_DEC_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
t->pad[IF_VID_DEC_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
+ t->pad[IF_VID_DEC_PAD_OUT].sig_type = PAD_SIGNAL_ANALOG;
ret = media_entity_pads_init(&t->sd.entity,
IF_VID_DEC_PAD_NUM_PADS,
&t->pad[0]);
t->sd.entity.function = MEDIA_ENT_F_IF_VID_DECODER;
} else {
t->pad[TUNER_PAD_RF_INPUT].flags = MEDIA_PAD_FL_SINK;
+ t->pad[TUNER_PAD_RF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
t->pad[TUNER_PAD_OUTPUT].flags = MEDIA_PAD_FL_SOURCE;
+ t->pad[TUNER_PAD_OUTPUT].sig_type = PAD_SIGNAL_ANALOG;
t->pad[TUNER_PAD_AUD_OUT].flags = MEDIA_PAD_FL_SOURCE;
+ t->pad[TUNER_PAD_AUD_OUT].sig_type = PAD_SIGNAL_AUDIO;
ret = media_entity_pads_init(&t->sd.entity, TUNER_NUM_PADS,
&t->pad[0]);
t->sd.entity.function = MEDIA_ENT_F_TUNER;
--
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