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1da177e4 LT |
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 | * | |
1da177e4 LT |
16 | */ |
17 | ||
18 | #ifndef _DVB_NET_H_ | |
19 | #define _DVB_NET_H_ | |
20 | ||
21 | #include <linux/module.h> | |
1da177e4 | 22 | |
fada1935 | 23 | #include <media/dvbdev.h> |
1da177e4 | 24 | |
de163422 JK |
25 | struct net_device; |
26 | ||
1da177e4 LT |
27 | #define DVB_NET_DEVICES_MAX 10 |
28 | ||
a34ff6cd HPS |
29 | #ifdef CONFIG_DVB_NET |
30 | ||
b5b03a20 MCC |
31 | /** |
32 | * struct dvb_net - describes a DVB network interface | |
33 | * | |
34 | * @dvbdev: pointer to &struct dvb_device. | |
35 | * @device: array of pointers to &struct net_device. | |
36 | * @state: array of integers to each net device. A value | |
37 | * different than zero means that the interface is | |
38 | * in usage. | |
39 | * @exit: flag to indicate when the device is being removed. | |
40 | * @demux: pointer to &struct dmx_demux. | |
41 | * @ioctl_mutex: protect access to this struct. | |
42 | * | |
43 | * Currently, the core supports up to %DVB_NET_DEVICES_MAX (10) network | |
44 | * devices. | |
45 | */ | |
46 | ||
1da177e4 LT |
47 | struct dvb_net { |
48 | struct dvb_device *dvbdev; | |
49 | struct net_device *device[DVB_NET_DEVICES_MAX]; | |
50 | int state[DVB_NET_DEVICES_MAX]; | |
2c4d3364 | 51 | unsigned int exit:1; |
1da177e4 | 52 | struct dmx_demux *demux; |
30ad64b8 | 53 | struct mutex ioctl_mutex; |
1da177e4 LT |
54 | }; |
55 | ||
b5b03a20 MCC |
56 | /** |
57 | * dvb_net_init - nitializes a digital TV network device and registers it. | |
58 | * | |
59 | * @adap: pointer to &struct dvb_adapter. | |
60 | * @dvbnet: pointer to &struct dvb_net. | |
61 | * @dmxdemux: pointer to &struct dmx_demux. | |
62 | */ | |
63 | int dvb_net_init(struct dvb_adapter *adap, struct dvb_net *dvbnet, | |
64 | struct dmx_demux *dmxdemux); | |
65 | ||
66 | /** | |
67 | * dvb_net_release - releases a digital TV network device and unregisters it. | |
68 | * | |
69 | * @dvbnet: pointer to &struct dvb_net. | |
70 | */ | |
71 | void dvb_net_release(struct dvb_net *dvbnet); | |
1da177e4 | 72 | |
fcc8e7d8 | 73 | #else |
a34ff6cd HPS |
74 | |
75 | struct dvb_net { | |
fcc8e7d8 | 76 | struct dvb_device *dvbdev; |
a34ff6cd HPS |
77 | }; |
78 | ||
79 | static inline void dvb_net_release(struct dvb_net *dvbnet) | |
80 | { | |
a34ff6cd HPS |
81 | } |
82 | ||
83 | static inline int dvb_net_init(struct dvb_adapter *adap, | |
84 | struct dvb_net *dvbnet, struct dmx_demux *dmx) | |
85 | { | |
a34ff6cd HPS |
86 | return 0; |
87 | } | |
88 | ||
fcc8e7d8 | 89 | #endif /* ifdef CONFIG_DVB_NET */ |
a34ff6cd HPS |
90 | |
91 | #endif |