From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/include/media/v4l2-device.h | 95 ++++++++++++++++++++++++++++++++++-------------
1 files changed, 68 insertions(+), 27 deletions(-)
diff --git a/kernel/include/media/v4l2-device.h b/kernel/include/media/v4l2-device.h
index 40840fe..64ec4de 100644
--- a/kernel/include/media/v4l2-device.h
+++ b/kernel/include/media/v4l2-device.h
@@ -1,21 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
V4L2 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _V4L2_DEVICE_H
@@ -84,7 +72,7 @@
}
/**
- * v4l2_device_put - putss a V4L2 device reference
+ * v4l2_device_put - puts a V4L2 device reference
*
* @v4l2_dev: pointer to struct &v4l2_device
*
@@ -186,14 +174,56 @@
void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
/**
- * v4l2_device_register_subdev_nodes - Registers device nodes for all subdevs
- * of the v4l2 device that are marked with
- * the %V4L2_SUBDEV_FL_HAS_DEVNODE flag.
+ * __v4l2_device_register_ro_subdev_nodes - Registers device nodes for
+ * all subdevs of the v4l2 device that are marked with the
+ * %V4L2_SUBDEV_FL_HAS_DEVNODE flag.
+ *
+ * @v4l2_dev: pointer to struct v4l2_device
+ * @read_only: subdevices read-only flag. True to register the subdevices
+ * device nodes in read-only mode, false to allow full access to the
+ * subdevice userspace API.
+ */
+int __must_check
+__v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev,
+ bool read_only);
+
+/**
+ * v4l2_device_register_subdev_nodes - Registers subdevices device nodes with
+ * unrestricted access to the subdevice userspace operations
+ *
+ * Internally calls __v4l2_device_register_subdev_nodes(). See its documentation
+ * for more details.
*
* @v4l2_dev: pointer to struct v4l2_device
*/
-int __must_check
-v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev);
+static inline int __must_check
+v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev)
+{
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
+ return __v4l2_device_register_subdev_nodes(v4l2_dev, false);
+#else
+ return 0;
+#endif
+}
+
+/**
+ * v4l2_device_register_ro_subdev_nodes - Registers subdevices device nodes
+ * in read-only mode
+ *
+ * Internally calls __v4l2_device_register_subdev_nodes(). See its documentation
+ * for more details.
+ *
+ * @v4l2_dev: pointer to struct v4l2_device
+ */
+static inline int __must_check
+v4l2_device_register_ro_subdev_nodes(struct v4l2_device *v4l2_dev)
+{
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
+ return __v4l2_device_register_subdev_nodes(v4l2_dev, true);
+#else
+ return 0;
+#endif
+}
/**
* v4l2_subdev_notify - Sends a notification to v4l2_device.
@@ -209,6 +239,17 @@
{
if (sd && sd->v4l2_dev && sd->v4l2_dev->notify)
sd->v4l2_dev->notify(sd, notification, arg);
+}
+
+/**
+ * v4l2_device_supports_requests - Test if requests are supported.
+ *
+ * @v4l2_dev: pointer to struct v4l2_device
+ */
+static inline bool v4l2_device_supports_requests(struct v4l2_device *v4l2_dev)
+{
+ return v4l2_dev->mdev && v4l2_dev->mdev->ops &&
+ v4l2_dev->mdev->ops->req_queue;
}
/* Helper macros to iterate over all subdevs. */
@@ -241,7 +282,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Ignore any errors.
*
@@ -266,7 +307,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Ignore any errors.
*
@@ -294,7 +335,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Return:
*
@@ -329,7 +370,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Return:
*
@@ -360,7 +401,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Ignore any errors.
*
@@ -389,7 +430,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Return:
*
@@ -420,7 +461,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Ignore any errors.
*
@@ -448,7 +489,7 @@
* @f: operation function that will be called if @cond matches.
* The operation functions are defined in groups, according to
* each element at &struct v4l2_subdev_ops.
- * @args...: arguments for @f.
+ * @args: arguments for @f.
*
* Return:
*
--
Gitblit v1.6.2