4 * Copyright (C) 2000 Ralph Metzler & Marcus Metzler
5 * for convergence integrated media GmbH
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.
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.
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.
26 #include <linux/types.h>
27 #include <linux/poll.h>
29 #include <linux/list.h>
30 #include <media/media-device.h>
34 #if defined(CONFIG_DVB_MAX_ADAPTERS) && CONFIG_DVB_MAX_ADAPTERS > 0
35 #define DVB_MAX_ADAPTERS CONFIG_DVB_MAX_ADAPTERS
37 #define DVB_MAX_ADAPTERS 8
40 #define DVB_UNSET (-1)
42 #define DVB_DEVICE_VIDEO 0
43 #define DVB_DEVICE_AUDIO 1
44 #define DVB_DEVICE_SEC 2
45 #define DVB_DEVICE_FRONTEND 3
46 #define DVB_DEVICE_DEMUX 4
47 #define DVB_DEVICE_DVR 5
48 #define DVB_DEVICE_CA 6
49 #define DVB_DEVICE_NET 7
50 #define DVB_DEVICE_OSD 8
52 #define DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr) \
53 static short adapter_nr[] = \
54 {[0 ... (DVB_MAX_ADAPTERS - 1)] = DVB_UNSET }; \
55 module_param_array(adapter_nr, short, NULL, 0444); \
56 MODULE_PARM_DESC(adapter_nr, "DVB adapter numbers")
62 struct list_head list_head
;
63 struct list_head device_list
;
68 struct device
*device
;
70 struct module
*module
;
72 int mfe_shared
; /* indicates mutually exclusive frontends */
73 struct dvb_device
*mfe_dvbdev
; /* frontend device in use */
74 struct mutex mfe_lock
; /* access lock for thread creation */
76 #if defined(CONFIG_MEDIA_CONTROLLER_DVB)
77 struct media_device
*mdev
;
83 struct list_head list_head
;
84 const struct file_operations
*fops
;
85 struct dvb_adapter
*adapter
;
90 /* in theory, 'users' can vanish now,
91 but I don't want to change too much now... */
96 wait_queue_head_t wait_queue
;
97 /* don't really need those !? -- FIXME: use video_usercopy */
98 int (*kernel_ioctl
)(struct file
*file
, unsigned int cmd
, void *arg
);
100 /* Needed for media controller register/unregister */
101 #if defined(CONFIG_MEDIA_CONTROLLER_DVB)
104 /* Allocated and filled inside dvbdev.c */
105 struct media_entity
*entity
;
106 struct media_pad
*pads
;
113 extern int dvb_register_adapter(struct dvb_adapter
*adap
, const char *name
,
114 struct module
*module
, struct device
*device
,
115 short *adapter_nums
);
116 extern int dvb_unregister_adapter (struct dvb_adapter
*adap
);
118 extern int dvb_register_device (struct dvb_adapter
*adap
,
119 struct dvb_device
**pdvbdev
,
120 const struct dvb_device
*template,
124 extern void dvb_unregister_device (struct dvb_device
*dvbdev
);
126 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
127 void dvb_create_media_graph(struct dvb_adapter
*adap
);
128 static inline void dvb_register_media_controller(struct dvb_adapter
*adap
,
129 struct media_device
*mdev
)
135 static inline void dvb_create_media_graph(struct dvb_adapter
*adap
) {}
136 #define dvb_register_media_controller(a, b) {}
139 extern int dvb_generic_open (struct inode
*inode
, struct file
*file
);
140 extern int dvb_generic_release (struct inode
*inode
, struct file
*file
);
141 extern long dvb_generic_ioctl (struct file
*file
,
142 unsigned int cmd
, unsigned long arg
);
144 /* we don't mess with video_usercopy() any more,
145 we simply define out own dvb_usercopy(), which will hopefully become
146 generic_usercopy() someday... */
148 extern int dvb_usercopy(struct file
*file
, unsigned int cmd
, unsigned long arg
,
149 int (*func
)(struct file
*file
, unsigned int cmd
, void *arg
));
151 /** generic DVB attach function. */
152 #ifdef CONFIG_MEDIA_ATTACH
153 #define dvb_attach(FUNCTION, ARGS...) ({ \
155 typeof(&FUNCTION) __a = symbol_request(FUNCTION); \
157 __r = (void *) __a(ARGS); \
159 symbol_put(FUNCTION); \
161 printk(KERN_ERR "DVB: Unable to find symbol "#FUNCTION"()\n"); \
166 #define dvb_detach(FUNC) symbol_put_addr(FUNC)
169 #define dvb_attach(FUNCTION, ARGS...) ({ \
173 #define dvb_detach(FUNC) {}
177 #endif /* #ifndef _DVBDEV_H_ */