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-subdev.h | 143 ++++++++++++++++++++++++++++++++---------------
1 files changed, 97 insertions(+), 46 deletions(-)
diff --git a/kernel/include/media/v4l2-subdev.h b/kernel/include/media/v4l2-subdev.h
index 9102d6c..1de960b 100644
--- a/kernel/include/media/v4l2-subdev.h
+++ b/kernel/include/media/v4l2-subdev.h
@@ -1,17 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* V4L2 sub-device support header.
*
* Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
- *
- * 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_SUBDEV_H
@@ -70,7 +61,7 @@
* device. These devices are usually audio/video muxers/encoders/decoders or
* sensors and webcam controllers.
*
- * Usually these devices are controlled through an i2c bus, but other busses
+ * Usually these devices are controlled through an i2c bus, but other buses
* may also be used.
*
* The v4l2_subdev struct provides a way of accessing these devices in a
@@ -390,7 +381,7 @@
* OUTPUT device. This is ignored by video capture devices.
*
* @g_input_status: get input status. Same as the status field in the
- * &struct &v4l2_input
+ * &struct v4l2_input
*
* @s_stream: used to notify the driver that a video stream will start or has
* stopped.
@@ -410,12 +401,6 @@
* @g_dv_timings: Get custom dv timings in the sub device.
*
* @query_dv_timings: callback for VIDIOC_QUERY_DV_TIMINGS() ioctl handler code.
- *
- * @g_mbus_config: get supported mediabus configurations
- *
- * @s_mbus_config: set a certain mediabus configuration. This operation is added
- * for compatibility with soc-camera drivers and should not be used by new
- * software.
*
* @s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev
* can adjust @size to a lower value and must not write more data to the
@@ -444,10 +429,6 @@
struct v4l2_dv_timings *timings);
int (*query_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
- int (*g_mbus_config)(struct v4l2_subdev *sd,
- struct v4l2_mbus_config *cfg);
- int (*s_mbus_config)(struct v4l2_subdev *sd,
- const struct v4l2_mbus_config *cfg);
int (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf,
unsigned int *size);
};
@@ -575,9 +556,9 @@
*
* @rx_read: Reads received codes or pulse width data.
* The semantics are similar to a non-blocking read() call.
- * @rx_g_parameters: Get the current operating parameters and state of the
+ * @rx_g_parameters: Get the current operating parameters and state of
* the IR receiver.
- * @rx_s_parameters: Set the current operating parameters and state of the
+ * @rx_s_parameters: Set the current operating parameters and state of
* the IR receiver. It is recommended to call
* [rt]x_g_parameters first to fill out the current state, and only change
* the fields that need to be changed. Upon return, the actual device
@@ -591,9 +572,9 @@
*
* @tx_write: Writes codes or pulse width data for transmission.
* The semantics are similar to a non-blocking write() call.
- * @tx_g_parameters: Get the current operating parameters and state of the
+ * @tx_g_parameters: Get the current operating parameters and state of
* the IR transmitter.
- * @tx_s_parameters: Set the current operating parameters and state of the
+ * @tx_s_parameters: Set the current operating parameters and state of
* the IR transmitter. It is recommended to call
* [rt]x_g_parameters first to fill out the current state, and only change
* the fields that need to be changed. Upon return, the actual device
@@ -679,6 +660,30 @@
*
* @set_frame_desc: set the low level media bus frame parameters, @fd array
* may be adjusted by the subdev driver to device capabilities.
+ *
+ * @get_mbus_config: get the media bus configuration of a remote sub-device.
+ * The media bus configuration is usually retrieved from the
+ * firmware interface at sub-device probe time, immediately
+ * applied to the hardware and eventually adjusted by the
+ * driver. Remote sub-devices (usually video receivers) shall
+ * use this operation to query the transmitting end bus
+ * configuration in order to adjust their own one accordingly.
+ * Callers should make sure they get the most up-to-date as
+ * possible configuration from the remote end, likely calling
+ * this operation as close as possible to stream on time. The
+ * operation shall fail if the pad index it has been called on
+ * is not valid or in case of unrecoverable failures.
+ *
+ * @set_mbus_config: set the media bus configuration of a remote sub-device.
+ * This operations is intended to allow, in combination with
+ * the get_mbus_config operation, the negotiation of media bus
+ * configuration parameters between media sub-devices. The
+ * operation shall not fail if the requested configuration is
+ * not supported, but the driver shall update the content of
+ * the %config argument to reflect what has been actually
+ * applied to the hardware. The operation shall fail if the
+ * pad index it has been called on is not valid or in case of
+ * unrecoverable failures.
*/
struct v4l2_subdev_pad_ops {
int (*init_cfg)(struct v4l2_subdev *sd,
@@ -719,6 +724,10 @@
struct v4l2_mbus_frame_desc *fd);
int (*set_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd);
+ int (*get_mbus_config)(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_config *config);
+ int (*set_mbus_config)(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_config *config);
};
/**
@@ -755,7 +764,17 @@
*
* @open: called when the subdev device node is opened by an application.
*
- * @close: called when the subdev device node is closed.
+ * @close: called when the subdev device node is closed. Please note that
+ * it is possible for @close to be called after @unregistered!
+ *
+ * @release: called when the last user of the subdev device is gone. This
+ * happens after the @unregistered callback and when the last open
+ * filehandle to the v4l-subdevX device node was closed. If no device
+ * node was created for this sub-device, then the @release callback
+ * is called right after the @unregistered callback.
+ * The @release callback is typically used to free the memory containing
+ * the v4l2_subdev structure. It is almost certainly required for any
+ * sub-device that sets the V4L2_SUBDEV_FL_HAS_DEVNODE flag.
*
* .. note::
* Never call this from drivers, only the v4l2 framework can call
@@ -766,6 +785,7 @@
void (*unregistered)(struct v4l2_subdev *sd);
int (*open)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
int (*close)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
+ void (*release)(struct v4l2_subdev *sd);
};
#define V4L2_SUBDEV_NAME_SIZE 32
@@ -776,7 +796,11 @@
#define V4L2_SUBDEV_FL_IS_SPI (1U << 1)
/* Set this flag if this subdev needs a device node. */
#define V4L2_SUBDEV_FL_HAS_DEVNODE (1U << 2)
-/* Set this flag if this subdev generates events. */
+/*
+ * Set this flag if this subdev generates events.
+ * Note controls can send events, thus drivers exposing controls
+ * should set this flag.
+ */
#define V4L2_SUBDEV_FL_HAS_EVENTS (1U << 3)
struct regulator_bulk_data;
@@ -895,9 +919,11 @@
*
* @vfh: pointer to &struct v4l2_fh
* @pad: pointer to &struct v4l2_subdev_pad_config
+ * @owner: module pointer to the owner of this file handle
*/
struct v4l2_subdev_fh {
struct v4l2_fh vfh;
+ struct module *owner;
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
struct v4l2_subdev_pad_config *pad;
#endif
@@ -922,10 +948,10 @@
* @cfg: pointer to &struct v4l2_subdev_pad_config array.
* @pad: index of the pad in the @cfg array.
*/
-static inline struct v4l2_mbus_framefmt
-*v4l2_subdev_get_try_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- unsigned int pad)
+static inline struct v4l2_mbus_framefmt *
+v4l2_subdev_get_try_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ unsigned int pad)
{
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
@@ -940,10 +966,10 @@
* @cfg: pointer to &struct v4l2_subdev_pad_config array.
* @pad: index of the pad in the @cfg array.
*/
-static inline struct v4l2_rect
-*v4l2_subdev_get_try_crop(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- unsigned int pad)
+static inline struct v4l2_rect *
+v4l2_subdev_get_try_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ unsigned int pad)
{
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
@@ -951,22 +977,23 @@
}
/**
- * v4l2_subdev_get_try_crop - ancillary routine to call
+ * v4l2_subdev_get_try_compose - ancillary routine to call
* &struct v4l2_subdev_pad_config->try_compose
*
* @sd: pointer to &struct v4l2_subdev
* @cfg: pointer to &struct v4l2_subdev_pad_config array.
* @pad: index of the pad in the @cfg array.
*/
-static inline struct v4l2_rect
-*v4l2_subdev_get_try_compose(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- unsigned int pad)
+static inline struct v4l2_rect *
+v4l2_subdev_get_try_compose(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ unsigned int pad)
{
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
return &cfg[pad].try_compose;
}
+
#endif
extern const struct v4l2_file_operations v4l2_subdev_fops;
@@ -1018,6 +1045,23 @@
}
#ifdef CONFIG_MEDIA_CONTROLLER
+
+/**
+ * v4l2_subdev_get_fwnode_pad_1_to_1 - Get pad number from a subdev fwnode
+ * endpoint, assuming 1:1 port:pad
+ *
+ * @entity: Pointer to the subdev entity
+ * @endpoint: Pointer to a parsed fwnode endpoint
+ *
+ * This function can be used as the .get_fwnode_pad operation for
+ * subdevices that map port numbers and pad indexes 1:1. If the endpoint
+ * is owned by the subdevice, the function returns the endpoint port
+ * number.
+ *
+ * Returns the endpoint port number on success or a negative error code.
+ */
+int v4l2_subdev_get_fwnode_pad_1_to_1(struct media_entity *entity,
+ struct fwnode_endpoint *endpoint);
/**
* v4l2_subdev_link_validate_default - validates a media link
@@ -1074,28 +1118,35 @@
void v4l2_subdev_init(struct v4l2_subdev *sd,
const struct v4l2_subdev_ops *ops);
+extern const struct v4l2_subdev_ops v4l2_subdev_call_wrappers;
+
/**
* v4l2_subdev_call - call an operation of a v4l2_subdev.
*
* @sd: pointer to the &struct v4l2_subdev
* @o: name of the element at &struct v4l2_subdev_ops that contains @f.
* Each element there groups a set of callbacks functions.
- * @f: callback function that will be called if @cond matches.
+ * @f: callback function to be called.
* The callback functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Example: err = v4l2_subdev_call(sd, video, s_std, norm);
*/
#define v4l2_subdev_call(sd, o, f, args...) \
({ \
+ struct v4l2_subdev *__sd = (sd); \
int __result; \
- if (!(sd)) \
+ if (!__sd) \
__result = -ENODEV; \
- else if (!((sd)->ops->o && (sd)->ops->o->f)) \
+ else if (!(__sd->ops->o && __sd->ops->o->f)) \
__result = -ENOIOCTLCMD; \
+ else if (v4l2_subdev_call_wrappers.o && \
+ v4l2_subdev_call_wrappers.o->f) \
+ __result = v4l2_subdev_call_wrappers.o->f( \
+ __sd, ##args); \
else \
- __result = (sd)->ops->o->f((sd), ##args); \
+ __result = __sd->ops->o->f(__sd, ##args); \
__result; \
})
--
Gitblit v1.6.2