1 /*
2  * Line6 Linux USB driver - 0.9.1beta
3  *
4  * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
5  *
6  *	This program is free software; you can redistribute it and/or
7  *	modify it under the terms of the GNU General Public License as
8  *	published by the Free Software Foundation, version 2.
9  *
10  */
11 
12 #ifndef DUMPREQUEST_H
13 #define DUMPREQUEST_H
14 
15 #include <linux/usb.h>
16 #include <linux/wait.h>
17 #include <sound/core.h>
18 
19 enum {
20 	LINE6_DUMP_NONE,
21 	LINE6_DUMP_CURRENT
22 };
23 
24 struct line6_dump_reqbuf {
25 	/**
26 		 Buffer for dump requests.
27 	*/
28 	unsigned char *buffer;
29 
30 	/**
31 		 Size of dump request.
32 	*/
33 	size_t length;
34 };
35 
36 /**
37 	 Provides the functionality to request channel/model/... dump data from a
38 	 Line6 device.
39 */
40 struct line6_dump_request {
41 	/**
42 		 Wait queue for access to program dump data.
43 	*/
44 	wait_queue_head_t wait;
45 
46 	/**
47 		 Indicates an unfinished program dump request.
48 		 0: no dump
49 		 1: dump current settings
50 		 Other device-specific values are also allowed.
51 	*/
52 	int in_progress;
53 
54 	/**
55 		 Dump request buffers
56 	*/
57 	struct line6_dump_reqbuf reqbufs[1];
58 };
59 
60 extern void line6_dump_finished(struct line6_dump_request *l6dr);
61 extern int line6_dump_request_async(struct line6_dump_request *l6dr,
62 				    struct usb_line6 *line6, int num, int dest);
63 extern void line6_dump_started(struct line6_dump_request *l6dr, int dest);
64 extern void line6_dumpreq_destruct(struct line6_dump_request *l6dr);
65 extern void line6_dumpreq_destructbuf(struct line6_dump_request *l6dr, int num);
66 extern int line6_dumpreq_init(struct line6_dump_request *l6dr, const void *buf,
67 			      size_t len);
68 extern int line6_dumpreq_initbuf(struct line6_dump_request *l6dr,
69 				 const void *buf, size_t len, int num);
70 extern void line6_invalidate_current(struct line6_dump_request *l6dr);
71 extern void line6_dump_wait(struct line6_dump_request *l6dr);
72 extern int line6_dump_wait_interruptible(struct line6_dump_request *l6dr);
73 extern int line6_dump_wait_timeout(struct line6_dump_request *l6dr,
74 				   long timeout);
75 
76 #endif
77