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 */
30 enum {
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 
41 enum {
42 	VARIAX_DUMP_PASS1 = LINE6_DUMP_CURRENT,
43 	VARIAX_DUMP_PASS2,
44 	VARIAX_DUMP_PASS3
45 };
46 
47 /**
48 	Binary Variax model dump
49 */
50 struct 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 
62 struct 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 
127 extern void line6_variax_disconnect(struct usb_interface *interface);
128 extern int line6_variax_init(struct usb_interface *interface,
129 			     struct usb_line6_variax *variax);
130 extern void line6_variax_process_message(struct usb_line6_variax *variax);
131 
132 #endif
133