drivers/staging/line6/pod.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 POD_H
  13 #define POD_H
  14
  15
  16 #include "driver.h"
  17
  18 #include <linux/spinlock.h>
  19 #include <linux/usb.h>
  20 #include <linux/wait.h>
  21 #include <linux/workqueue.h>
  22
  23 #include <sound/core.h>
  24
  25 #include "dumprequest.h"
  26
  27
  28 /*
  29         PODxt Live interfaces
  30 */
  31 #define PODXTLIVE_INTERFACE_POD    0
  32 #define PODXTLIVE_INTERFACE_VARIAX 1
  33
  34 /*
  35         Locate name in binary program dump
  36 */
  37 #define POD_NAME_OFFSET 0
  38 #define POD_NAME_LENGTH 16
  39
  40 /*
  41         Other constants
  42 */
  43 #define POD_CONTROL_SIZE 0x80
  44 #define POD_BUFSIZE_DUMPREQ 7
  45 #define POD_STARTUP_DELAY 3
  46
  47
  48 /**
  49          Data structure for values that need to be requested explicitly.
  50          This is the case for system and tuner settings.
  51 */
  52 struct ValueWait {
  53         unsigned short value;
  54         wait_queue_head_t wait;
  55 };
  56
  57 /**
  58          Binary PodXT Pro program dump
  59 */
  60 struct pod_program {
  61         /**
  62                  Header information (including program name).
  63         */
  64         unsigned char header[0x20];
  65
  66         /**
  67                  Program parameters.
  68         */
  69         unsigned char control[POD_CONTROL_SIZE];
  70 };
  71
  72 struct usb_line6_pod {
  73         /**
  74                  Generic Line6 USB data.
  75         */
  76         struct usb_line6 line6;
  77
  78         /**
  79                  Dump request structure.
  80         */
  81         struct line6_dump_request dumpreq;
  82
  83         /**
  84                  Current program number.
  85         */
  86         unsigned char channel_num;
  87
  88         /**
  89                  Current program settings.
  90         */
  91         struct pod_program prog_data;
  92
  93         /**
  94                  Buffer for data retrieved from or to be stored on PODxt Pro.
  95         */
  96         struct pod_program prog_data_buf;
  97
  98         /**
  99                  Buffer for requesting version number.
 100         */
 101         unsigned char *buffer_versionreq;
 102
 103         /**
 104                  Tuner mute mode.
 105         */
 106         struct ValueWait tuner_mute;
 107
 108         /**
 109                  Tuner base frequency (typically 440Hz).
 110         */
 111         struct ValueWait tuner_freq;
 112
 113         /**
 114                  Note received from tuner.
 115         */
 116         struct ValueWait tuner_note;
 117
 118         /**
 119                  Pitch value received from tuner.
 120         */
 121         struct ValueWait tuner_pitch;
 122
 123         /**
 124                  Instrument monitor level.
 125         */
 126         struct ValueWait monitor_level;
 127
 128         /**
 129                  Audio routing mode.
 130                  0: send processed guitar
 131                  1: send clean guitar
 132                  2: send clean guitar re-amp playback
 133                  3: send re-amp playback
 134         */
 135         struct ValueWait routing;
 136
 137         /**
 138                  Wait for audio clipping event.
 139         */
 140         struct ValueWait clipping;
 141
 142         /**
 143                  Bottom-half for creation of sysfs special files.
 144         */
 145         struct work_struct create_files_work;
 146
 147         /**
 148                  Dirty flags for access to parameter data.
 149         */
 150         unsigned long param_dirty[POD_CONTROL_SIZE / sizeof(unsigned long)];
 151
 152         /**
 153                  Some atomic flags.
 154         */
 155         unsigned long atomic_flags;
 156
 157         /**
 158                  Counter for startup process.
 159         */
 160         int startup_count;
 161
 162         /**
 163                  Serial number of device.
 164         */
 165         int serial_number;
 166
 167         /**
 168                  Firmware version (x 100).
 169         */
 170         int firmware_version;
 171
 172         /**
 173                  Device ID.
 174         */
 175         int device_id;
 176
 177         /**
 178                  Flag to indicate modification of current program settings.
 179         */
 180         char dirty;
 181
 182         /**
 183                  Flag if initial firmware version request has been successful.
 184         */
 185         char versionreq_ok;
 186
 187         /**
 188                  Flag to enable MIDI postprocessing.
 189         */
 190         char midi_postprocess;
 191 };
 192
 193
 194 extern void pod_disconnect(struct usb_interface *interface);
 195 extern int pod_init(struct usb_interface *interface, struct usb_line6_pod *pod);
 196 extern void pod_midi_postprocess(struct usb_line6_pod *pod,
 197                                  unsigned char *data, int length);
 198 extern void pod_process_message(struct usb_line6_pod *pod);
 199 extern void pod_receive_parameter(struct usb_line6_pod *pod, int param);
 200 extern void pod_transmit_parameter(struct usb_line6_pod *pod, int param,
 201                                    int value);
 202
 203
 204 #endif