V4L/DVB (11945): uvcvideo: Don't accept to change the format when buffers are allocated.
[linux-2.6] / drivers / staging / line6 / variax.h
1 /*
2  * Line6 Linux USB driver - 0.8.0
3  *
4  * Copyright (C) 2004-2009 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 VARIAX_H
13 #define VARIAX_H
14
15
16 #include "driver.h"
17
18 #include <linux/spinlock.h>
19 #include <linux/usb.h>
20 #include <linux/wait.h>
21
22 #include <sound/core.h>
23
24 #include "dumprequest.h"
25
26
27 #define VARIAX_ACTIVATE_DELAY 10
28 #define VARIAX_STARTUP_DELAY 3
29
30
31 enum {
32         VARIAX_DUMP_PASS1 = LINE6_DUMP_CURRENT,
33         VARIAX_DUMP_PASS2,
34         VARIAX_DUMP_PASS3
35 };
36
37
38 /**
39          Binary Variax model dump
40 */
41 struct variax_model {
42         /**
43                  Header information (including program name).
44         */
45         unsigned char name[18];
46
47         /**
48                  Model parameters.
49         */
50         unsigned char control[78 * 2];
51 };
52
53 struct usb_line6_variax {
54         /**
55                  Generic Line6 USB data.
56         */
57         struct usb_line6 line6;
58
59         /**
60                  Dump request structure.
61                  Append two extra buffers for 3-pass data query.
62         */
63         struct line6_dump_request dumpreq; struct line6_dump_reqbuf extrabuf[2];
64
65         /**
66                  Buffer for activation code.
67         */
68         unsigned char *buffer_activate;
69
70         /**
71                  Model number.
72         */
73         int model;
74
75         /**
76                  Current model settings.
77         */
78         struct variax_model model_data;
79
80         /**
81                  Name of current model bank.
82         */
83         unsigned char bank[18];
84
85         /**
86                  Position of volume dial.
87         */
88         int volume;
89
90         /**
91                  Position of tone control dial.
92         */
93         int tone;
94
95         /**
96                  Timer for delayed activation request.
97         */
98         struct timer_list activate_timer;
99 };
100
101
102 extern void variax_disconnect(struct usb_interface *interface);
103 extern int variax_init(struct usb_interface *interface,
104                        struct usb_line6_variax *variax);
105 extern void variax_process_message(struct usb_line6_variax *variax);
106
107
108 #endif