Root/drivers/staging/line6/variax.h

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 VARIAX_H
13#define VARIAX_H
14
15#include <linux/spinlock.h>
16#include <linux/usb.h>
17#include <linux/wait.h>
18#include <sound/core.h>
19
20#include "driver.h"
21#include "dumprequest.h"
22
23#define VARIAX_STARTUP_DELAY1 1000
24#define VARIAX_STARTUP_DELAY3 100
25#define VARIAX_STARTUP_DELAY4 100
26
27/*
28    Stages of Variax startup procedure
29*/
30enum {
31    VARIAX_STARTUP_INIT = 1,
32    VARIAX_STARTUP_VERSIONREQ,
33    VARIAX_STARTUP_WAIT,
34    VARIAX_STARTUP_ACTIVATE,
35    VARIAX_STARTUP_DUMPREQ,
36    VARIAX_STARTUP_WORKQUEUE,
37    VARIAX_STARTUP_SETUP,
38    VARIAX_STARTUP_LAST = VARIAX_STARTUP_SETUP - 1
39};
40
41enum {
42    VARIAX_DUMP_PASS1 = LINE6_DUMP_CURRENT,
43    VARIAX_DUMP_PASS2,
44    VARIAX_DUMP_PASS3
45};
46
47/**
48    Binary Variax model dump
49*/
50struct variax_model {
51    /**
52        Header information (including program name).
53    */
54    unsigned char name[18];
55
56    /**
57        Model parameters.
58    */
59    unsigned char control[78 * 2];
60};
61
62struct usb_line6_variax {
63    /**
64        Generic Line6 USB data.
65    */
66    struct usb_line6 line6;
67
68    /**
69        Dump request structure.
70        Append two extra buffers for 3-pass data query.
71    */
72    struct line6_dump_request dumpreq;
73    struct line6_dump_reqbuf extrabuf[2];
74
75    /**
76        Buffer for activation code.
77    */
78    unsigned char *buffer_activate;
79
80    /**
81        Model number.
82    */
83    int model;
84
85    /**
86        Current model settings.
87    */
88    struct variax_model model_data;
89
90    /**
91        Name of connected guitar.
92    */
93    unsigned char guitar[18];
94
95    /**
96        Name of current model bank.
97    */
98    unsigned char bank[18];
99
100    /**
101        Position of volume dial.
102    */
103    int volume;
104
105    /**
106        Position of tone control dial.
107    */
108    int tone;
109
110    /**
111        Handler for device initializaton.
112    */
113    struct work_struct startup_work;
114
115    /**
116        Timers for device initializaton.
117    */
118    struct timer_list startup_timer1;
119    struct timer_list startup_timer2;
120
121    /**
122        Current progress in startup procedure.
123    */
124    int startup_progress;
125};
126
127extern void line6_variax_disconnect(struct usb_interface *interface);
128extern int line6_variax_init(struct usb_interface *interface,
129                 struct usb_line6_variax *variax);
130extern void line6_variax_process_message(struct usb_line6_variax *variax);
131
132#endif
133

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