From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/include/media/v4l2-mc.h | 177 ++++++++++++++++++++++++----------------------------------
1 files changed, 74 insertions(+), 103 deletions(-)
diff --git a/kernel/include/media/v4l2-mc.h b/kernel/include/media/v4l2-mc.h
index 2634d9d..bdaa5f2 100644
--- a/kernel/include/media/v4l2-mc.h
+++ b/kernel/include/media/v4l2-mc.h
@@ -1,19 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* v4l2-mc.h - Media Controller V4L2 types and prototypes
*
* Copyright (C) 2016 Mauro Carvalho Chehab <mchehab@kernel.org>
* Copyright (C) 2006-2010 Nokia Corporation
* Copyright (c) 2016 Intel Corporation.
- *
- * 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.
*/
#ifndef _V4L2_MC_H
@@ -21,85 +12,8 @@
#include <media/media-device.h>
#include <media/v4l2-dev.h>
+#include <media/v4l2-subdev.h>
#include <linux/types.h>
-
-/**
- * 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
-};
-
-/**
- * enum if_aud_dec_pad_index - audio/sound IF-PLL pad index for
- * MEDIA_ENT_F_IF_AUD_DECODER
- *
- * @IF_AUD_DEC_PAD_IF_INPUT: audio Intermediate Frequency (IF) sink pad
- * @IF_AUD_DEC_PAD_OUT: IF-PLL audio output source pad. Contains the
- * audio sampled stream data, usually connected
- * to the bridge bus via an Inter-IC Sound (I2S)
- * bus.
- * @IF_AUD_DEC_PAD_NUM_PADS: Number of pads of the audio IF-PLL.
- */
-enum if_aud_dec_pad_index {
- IF_AUD_DEC_PAD_IF_INPUT,
- IF_AUD_DEC_PAD_OUT,
- IF_AUD_DEC_PAD_NUM_PADS
-};
-
-/**
- * enum demod_pad_index - analog TV pad index for MEDIA_ENT_F_ATV_DECODER
- *
- * @DEMOD_PAD_IF_INPUT: IF input sink pad.
- * @DEMOD_PAD_VID_OUT: Video output source pad.
- * @DEMOD_PAD_VBI_OUT: Vertical Blank Interface (VBI) output source pad.
- * @DEMOD_PAD_AUDIO_OUT: Audio output source pad.
- * @DEMOD_NUM_PADS: Maximum number of output pads.
- */
-enum demod_pad_index {
- DEMOD_PAD_IF_INPUT,
- DEMOD_PAD_VID_OUT,
- DEMOD_PAD_VBI_OUT,
- DEMOD_PAD_AUDIO_OUT,
- DEMOD_NUM_PADS
-};
/* We don't need to include pci.h or usb.h here */
struct pci_dev;
@@ -171,25 +85,79 @@
*/
int v4l_vb2q_enable_media_source(struct vb2_queue *q);
+/**
+ * v4l2_create_fwnode_links_to_pad - Create fwnode-based links from a
+ * source subdev to a sink subdev pad.
+ *
+ * @src_sd: pointer to a source subdev
+ * @sink: pointer to a subdev sink pad
+ *
+ * This function searches for fwnode endpoint connections from a source
+ * subdevice to a single sink pad, and if suitable connections are found,
+ * translates them into media links to that pad. The function can be
+ * called by the sink subdevice, in its v4l2-async notifier subdev bound
+ * callback, to create links from a bound source subdevice.
+ *
+ * .. note::
+ *
+ * Any sink subdevice that calls this function must implement the
+ * .get_fwnode_pad media operation in order to verify endpoints passed
+ * to the sink are owned by the sink.
+ *
+ * Return 0 on success or a negative error code on failure.
+ */
+int v4l2_create_fwnode_links_to_pad(struct v4l2_subdev *src_sd,
+ struct media_pad *sink);
/**
- * v4l2_pipeline_pm_use - Update the use count of an entity
- * @entity: The entity
- * @use: Use (1) or stop using (0) the entity
+ * v4l2_create_fwnode_links - Create fwnode-based links from a source
+ * subdev to a sink subdev.
*
- * Update the use count of all entities in the pipeline and power entities on or
- * off accordingly.
+ * @src_sd: pointer to a source subdevice
+ * @sink_sd: pointer to a sink subdevice
*
- * This function is intended to be called in video node open (use ==
- * 1) and release (use == 0). It uses struct media_entity.use_count to
- * track the power status. The use of this function should be paired
- * with v4l2_pipeline_link_notify().
+ * This function searches for any and all fwnode endpoint connections
+ * between source and sink subdevices, and translates them into media
+ * links. The function can be called by the sink subdevice, in its
+ * v4l2-async notifier subdev bound callback, to create all links from
+ * a bound source subdevice.
*
- * Return 0 on success or a negative error code on failure. Powering entities
- * off is assumed to never fail. No failure can occur when the use parameter is
- * set to 0.
+ * .. note::
+ *
+ * Any sink subdevice that calls this function must implement the
+ * .get_fwnode_pad media operation in order to verify endpoints passed
+ * to the sink are owned by the sink.
+ *
+ * Return 0 on success or a negative error code on failure.
*/
-int v4l2_pipeline_pm_use(struct media_entity *entity, int use);
+int v4l2_create_fwnode_links(struct v4l2_subdev *src_sd,
+ struct v4l2_subdev *sink_sd);
+
+/**
+ * v4l2_pipeline_pm_get - Increase the use count of a pipeline
+ * @entity: The root entity of a pipeline
+ *
+ * Update the use count of all entities in the pipeline and power entities on.
+ *
+ * This function is intended to be called in video node open. It uses
+ * struct media_entity.use_count to track the power status. The use
+ * of this function should be paired with v4l2_pipeline_link_notify().
+ *
+ * Return 0 on success or a negative error code on failure.
+ */
+int v4l2_pipeline_pm_get(struct media_entity *entity);
+
+/**
+ * v4l2_pipeline_pm_put - Decrease the use count of a pipeline
+ * @entity: The root entity of a pipeline
+ *
+ * Update the use count of all entities in the pipeline and power entities off.
+ *
+ * This function is intended to be called in video node release. It uses
+ * struct media_entity.use_count to track the power status. The use
+ * of this function should be paired with v4l2_pipeline_link_notify().
+ */
+void v4l2_pipeline_pm_put(struct media_entity *entity);
/**
@@ -201,7 +169,7 @@
* React to link management on powered pipelines by updating the use count of
* all entities in the source and sink sides of the link. Entities are powered
* on or off accordingly. The use of this function should be paired
- * with v4l2_pipeline_pm_use().
+ * with v4l2_pipeline_pm_{get,put}().
*
* Return 0 on success or a negative error code on failure. Powering entities
* off is assumed to never fail. This function will not fail for disconnection
@@ -231,11 +199,14 @@
return 0;
}
-static inline int v4l2_pipeline_pm_use(struct media_entity *entity, int use)
+static inline int v4l2_pipeline_pm_get(struct media_entity *entity)
{
return 0;
}
+static inline void v4l2_pipeline_pm_put(struct media_entity *entity)
+{}
+
static inline int v4l2_pipeline_link_notify(struct media_link *link, u32 flags,
unsigned int notification)
{
--
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