1 /* 2 * dvb_net.h 3 * 4 * Copyright (C) 2001 Ralph Metzler for convergence integrated media GmbH 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public License 8 * as published by the Free Software Foundation; either version 2.1 9 * of the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 */ 17 18 #ifndef _DVB_NET_H_ 19 #define _DVB_NET_H_ 20 21 #include <linux/module.h> 22 #include <linux/netdevice.h> 23 #include <linux/inetdevice.h> 24 #include <linux/etherdevice.h> 25 #include <linux/skbuff.h> 26 27 #include <media/dvbdev.h> 28 29 #define DVB_NET_DEVICES_MAX 10 30 31 #ifdef CONFIG_DVB_NET 32 33 /** 34 * struct dvb_net - describes a DVB network interface 35 * 36 * @dvbdev: pointer to &struct dvb_device. 37 * @device: array of pointers to &struct net_device. 38 * @state: array of integers to each net device. A value 39 * different than zero means that the interface is 40 * in usage. 41 * @exit: flag to indicate when the device is being removed. 42 * @demux: pointer to &struct dmx_demux. 43 * @ioctl_mutex: protect access to this struct. 44 * 45 * Currently, the core supports up to %DVB_NET_DEVICES_MAX (10) network 46 * devices. 47 */ 48 49 struct dvb_net { 50 struct dvb_device *dvbdev; 51 struct net_device *device[DVB_NET_DEVICES_MAX]; 52 int state[DVB_NET_DEVICES_MAX]; 53 unsigned int exit:1; 54 struct dmx_demux *demux; 55 struct mutex ioctl_mutex; 56 }; 57 58 /** 59 * dvb_net_init - nitializes a digital TV network device and registers it. 60 * 61 * @adap: pointer to &struct dvb_adapter. 62 * @dvbnet: pointer to &struct dvb_net. 63 * @dmxdemux: pointer to &struct dmx_demux. 64 */ 65 int dvb_net_init(struct dvb_adapter *adap, struct dvb_net *dvbnet, 66 struct dmx_demux *dmxdemux); 67 68 /** 69 * dvb_net_release - releases a digital TV network device and unregisters it. 70 * 71 * @dvbnet: pointer to &struct dvb_net. 72 */ 73 void dvb_net_release(struct dvb_net *dvbnet); 74 75 #else 76 77 struct dvb_net { 78 struct dvb_device *dvbdev; 79 }; 80 81 static inline void dvb_net_release(struct dvb_net *dvbnet) 82 { 83 } 84 85 static inline int dvb_net_init(struct dvb_adapter *adap, 86 struct dvb_net *dvbnet, struct dmx_demux *dmx) 87 { 88 return 0; 89 } 90 91 #endif /* ifdef CONFIG_DVB_NET */ 92 93 #endif 94