drivers/media/dvb/dvb-core/dvbdev.h

   1 /*
   2  * dvbdev.h
   3  *
   4  * Copyright (C) 2000 Ralph Metzler & Marcus Metzler
   5  *                    for convergence integrated media GmbH
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Lesser Public License
   9  * as published by the Free Software Foundation; either version 2.1
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  */
  22
  23 #ifndef _DVBDEV_H_
  24 #define _DVBDEV_H_
  25
  26 #include <linux/types.h>
  27 #include <linux/poll.h>
  28 #include <linux/fs.h>
  29 #include <linux/list.h>
  30 #include <linux/devfs_fs_kernel.h>
  31 #include <linux/smp_lock.h>
  32
  33 #define DVB_MAJOR 212
  34
  35 #define DVB_DEVICE_VIDEO      0
  36 #define DVB_DEVICE_AUDIO      1
  37 #define DVB_DEVICE_SEC        2
  38 #define DVB_DEVICE_FRONTEND   3
  39 #define DVB_DEVICE_DEMUX      4
  40 #define DVB_DEVICE_DVR        5
  41 #define DVB_DEVICE_CA         6
  42 #define DVB_DEVICE_NET        7
  43 #define DVB_DEVICE_OSD        8
  44
  45
  46 struct dvb_adapter {
  47         int num;
  48         struct list_head list_head;
  49         struct list_head device_list;
  50         const char *name;
  51         u8 proposed_mac [6];
  52         void* priv;
  53
  54         struct module *module;
  55 };
  56
  57
  58 struct dvb_device {
  59         struct list_head list_head;
  60         struct file_operations *fops;
  61         struct dvb_adapter *adapter;
  62         int type;
  63         u32 id;
  64
  65         /* in theory, 'users' can vanish now,
  66            but I don't want to change too much now... */
  67         int readers;
  68         int writers;
  69         int users;
  70
  71         /* don't really need those !? -- FIXME: use video_usercopy  */
  72         int (*kernel_ioctl)(struct inode *inode, struct file *file,
  73                             unsigned int cmd, void *arg);
  74
  75         void *priv;
  76 };
  77
  78
  79 extern int dvb_register_adapter (struct dvb_adapter **padap, const char *name, struct module *module);
  80 extern int dvb_unregister_adapter (struct dvb_adapter *adap);
  81
  82 extern int dvb_register_device (struct dvb_adapter *adap,
  83                                 struct dvb_device **pdvbdev,
  84                                 const struct dvb_device *template,
  85                                 void *priv,
  86                                 int type);
  87
  88 extern void dvb_unregister_device (struct dvb_device *dvbdev);
  89
  90 extern int dvb_generic_open (struct inode *inode, struct file *file);
  91 extern int dvb_generic_release (struct inode *inode, struct file *file);
  92 extern int dvb_generic_ioctl (struct inode *inode, struct file *file,
  93                               unsigned int cmd, unsigned long arg);
  94
  95 /* we don't mess with video_usercopy() any more,
  96 we simply define out own dvb_usercopy(), which will hopefully become
  97 generic_usercopy()  someday... */
  98
  99 extern int dvb_usercopy(struct inode *inode, struct file *file,
 100                             unsigned int cmd, unsigned long arg,
 101                             int (*func)(struct inode *inode, struct file *file,
 102                             unsigned int cmd, void *arg));
 103
 104 #endif /* #ifndef _DVBDEV_H_ */