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6 #ifndef __PVRUSB2_CONTEXT_H
7 #define __PVRUSB2_CONTEXT_H
8
9 #include <linux/mutex.h>
10 #include <linux/usb.h>
11 #include <linux/workqueue.h>
12
13 struct pvr2_hdw;
14 struct pvr2_stream;
15
16 struct pvr2_context;
17 struct pvr2_channel;
18 struct pvr2_context_stream;
19 struct pvr2_ioread;
20
21 struct pvr2_context_stream {
22 struct pvr2_channel *user;
23 struct pvr2_stream *stream;
24 };
25
26 struct pvr2_context {
27 struct pvr2_channel *mc_first;
28 struct pvr2_channel *mc_last;
29 struct pvr2_context *exist_next;
30 struct pvr2_context *exist_prev;
31 struct pvr2_context *notify_next;
32 struct pvr2_context *notify_prev;
33 struct pvr2_hdw *hdw;
34 struct pvr2_context_stream video_stream;
35 struct mutex mutex;
36 int notify_flag;
37 int initialized_flag;
38 int disconnect_flag;
39
40
41 void (*setup_func)(struct pvr2_context *);
42
43 };
44
45 struct pvr2_channel {
46 struct pvr2_context *mc_head;
47 struct pvr2_channel *mc_next;
48 struct pvr2_channel *mc_prev;
49 struct pvr2_context_stream *stream;
50 struct pvr2_hdw *hdw;
51 unsigned int input_mask;
52 void (*check_func)(struct pvr2_channel *);
53 };
54
55 struct pvr2_context *pvr2_context_create(struct usb_interface *intf,
56 const struct usb_device_id *devid,
57 void (*setup_func)(struct pvr2_context *));
58 void pvr2_context_disconnect(struct pvr2_context *);
59
60 void pvr2_channel_init(struct pvr2_channel *,struct pvr2_context *);
61 void pvr2_channel_done(struct pvr2_channel *);
62 int pvr2_channel_limit_inputs(struct pvr2_channel *,unsigned int);
63 unsigned int pvr2_channel_get_limited_inputs(struct pvr2_channel *);
64 int pvr2_channel_claim_stream(struct pvr2_channel *,
65 struct pvr2_context_stream *);
66 struct pvr2_ioread *pvr2_channel_create_mpeg_stream(
67 struct pvr2_context_stream *);
68
69 int pvr2_context_global_init(void);
70 void pvr2_context_global_done(void);
71
72 #endif