1 /*
2 *
3 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 */
19 #ifndef __PVRUSB2_CONTEXT_H
20 #define __PVRUSB2_CONTEXT_H
21
22 #include <linux/mutex.h>
23 #include <linux/usb.h>
24 #include <linux/workqueue.h>
25
26 struct pvr2_hdw; /* hardware interface - defined elsewhere */
27 struct pvr2_stream; /* stream interface - defined elsewhere */
28
29 struct pvr2_context; /* All central state */
30 struct pvr2_channel; /* One I/O pathway to a user */
31 struct pvr2_context_stream; /* Wrapper for a stream */
32 struct pvr2_ioread; /* Low level stream structure */
33
34 struct pvr2_context_stream {
35 struct pvr2_channel *user;
36 struct pvr2_stream *stream;
37 };
38
39 struct pvr2_context {
40 struct pvr2_channel *mc_first;
41 struct pvr2_channel *mc_last;
42 struct pvr2_context *exist_next;
43 struct pvr2_context *exist_prev;
44 struct pvr2_context *notify_next;
45 struct pvr2_context *notify_prev;
46 struct pvr2_hdw *hdw;
47 struct pvr2_context_stream video_stream;
48 struct mutex mutex;
49 int notify_flag;
50 int initialized_flag;
51 int disconnect_flag;
52
53 /* Called after pvr2_context initialization is complete */
54 void (*setup_func)(struct pvr2_context *);
55
56 };
57
58 struct pvr2_channel {
59 struct pvr2_context *mc_head;
60 struct pvr2_channel *mc_next;
61 struct pvr2_channel *mc_prev;
62 struct pvr2_context_stream *stream;
63 struct pvr2_hdw *hdw;
64 unsigned int input_mask;
65 void (*check_func)(struct pvr2_channel *);
66 };
67
68 struct pvr2_context *pvr2_context_create(struct usb_interface *intf,
69 const struct usb_device_id *devid,
70 void (*setup_func)(struct pvr2_context *));
71 void pvr2_context_disconnect(struct pvr2_context *);
72
73 void pvr2_channel_init(struct pvr2_channel *,struct pvr2_context *);
74 void pvr2_channel_done(struct pvr2_channel *);
75 int pvr2_channel_limit_inputs(struct pvr2_channel *,unsigned int);
76 unsigned int pvr2_channel_get_limited_inputs(struct pvr2_channel *);
77 int pvr2_channel_claim_stream(struct pvr2_channel *,
78 struct pvr2_context_stream *);
79 struct pvr2_ioread *pvr2_channel_create_mpeg_stream(
80 struct pvr2_context_stream *);
81
82 int pvr2_context_global_init(void);
83 void pvr2_context_global_done(void);
84
85 #endif /* __PVRUSB2_CONTEXT_H */
86 /*
87 Stuff for Emacs to see, in order to encourage consistent editing style:
88 *** Local Variables: ***
89 *** mode: c ***
90 *** fill-column: 75 ***
91 *** tab-width: 8 ***
92 *** c-basic-offset: 8 ***
93 *** End: ***
94 */
95
|
This page was automatically generated by the
LXR engine.
|