/* * 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 <media/dvbdev.h> struct net_device; #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