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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /include/media/dvb_net.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/media/dvb_net.h')
-rw-r--r--include/media/dvb_net.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/include/media/dvb_net.h b/include/media/dvb_net.h
new file mode 100644
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+++ b/include/media/dvb_net.h
@@ -0,0 +1,97 @@
+/*
+ * dvb_net.h
+ *
+ * Copyright (C) 2001 Ralph Metzler for convergence integrated media GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * 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 _DVB_NET_H_
+#define _DVB_NET_H_
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include <media/dvbdev.h>
+
+#define DVB_NET_DEVICES_MAX 10
+
+#ifdef CONFIG_DVB_NET
+
+/**
+ * struct dvb_net - describes a DVB network interface
+ *
+ * @dvbdev: pointer to &struct dvb_device.
+ * @device: array of pointers to &struct net_device.
+ * @state: array of integers to each net device. A value
+ * different than zero means that the interface is
+ * in usage.
+ * @exit: flag to indicate when the device is being removed.
+ * @demux: pointer to &struct dmx_demux.
+ * @ioctl_mutex: protect access to this struct.
+ * @remove_mutex: mutex that avoids a race condition between a callback
+ * called when the hardware is disconnected and the
+ * file_operations of dvb_net.
+ *
+ * Currently, the core supports up to %DVB_NET_DEVICES_MAX (10) network
+ * devices.
+ */
+
+struct dvb_net {
+ struct dvb_device *dvbdev;
+ struct net_device *device[DVB_NET_DEVICES_MAX];
+ int state[DVB_NET_DEVICES_MAX];
+ unsigned int exit:1;
+ struct dmx_demux *demux;
+ struct mutex ioctl_mutex;
+ struct mutex remove_mutex;
+};
+
+/**
+ * dvb_net_init - nitializes a digital TV network device and registers it.
+ *
+ * @adap: pointer to &struct dvb_adapter.
+ * @dvbnet: pointer to &struct dvb_net.
+ * @dmxdemux: pointer to &struct dmx_demux.
+ */
+int dvb_net_init(struct dvb_adapter *adap, struct dvb_net *dvbnet,
+ struct dmx_demux *dmxdemux);
+
+/**
+ * dvb_net_release - releases a digital TV network device and unregisters it.
+ *
+ * @dvbnet: pointer to &struct dvb_net.
+ */
+void dvb_net_release(struct dvb_net *dvbnet);
+
+#else
+
+struct dvb_net {
+ struct dvb_device *dvbdev;
+};
+
+static inline void dvb_net_release(struct dvb_net *dvbnet)
+{
+}
+
+static inline int dvb_net_init(struct dvb_adapter *adap,
+ struct dvb_net *dvbnet, struct dmx_demux *dmx)
+{
+ return 0;
+}
+
+#endif /* ifdef CONFIG_DVB_NET */
+
+#endif