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
19enum {
20	LINE6_DUMP_NONE,
21	LINE6_DUMP_CURRENT
22};
23
24struct 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*/
40struct 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
60extern void line6_dump_finished(struct line6_dump_request *l6dr);
61extern int line6_dump_request_async(struct line6_dump_request *l6dr,
62				    struct usb_line6 *line6, int num, int dest);
63extern void line6_dump_started(struct line6_dump_request *l6dr, int dest);
64extern void line6_dumpreq_destruct(struct line6_dump_request *l6dr);
65extern void line6_dumpreq_destructbuf(struct line6_dump_request *l6dr, int num);
66extern int line6_dumpreq_init(struct line6_dump_request *l6dr, const void *buf,
67			      size_t len);
68extern int line6_dumpreq_initbuf(struct line6_dump_request *l6dr,
69				 const void *buf, size_t len, int num);
70extern void line6_invalidate_current(struct line6_dump_request *l6dr);
71extern void line6_dump_wait(struct line6_dump_request *l6dr);
72extern int line6_dump_wait_interruptible(struct line6_dump_request *l6dr);
73extern int line6_dump_wait_timeout(struct line6_dump_request *l6dr,
74				   long timeout);
75
76#endif