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 */
  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