epan/dissectors/packet-sysex.c

   1 /* packet-sysex.c
   2  *
   3  * MIDI SysEx dissector
   4  * Tomasz Mon 2012
   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
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21
  22 #include "config.h"
  23
  24 #include <glib.h>
  25 #include <epan/conversation.h>
  26 #include <epan/wmem/wmem.h>
  27 #include <epan/expert.h>
  28 #include <epan/packet.h>
  29 #include <epan/reassemble.h>
  30 #include <epan/tfs.h>
  31
  32 void proto_register_sysex(void);
  33 void proto_reg_handoff_sysex(void);
  34
  35 /* protocols and header fields */
  36 static int proto_sysex = -1;
  37 static int hf_sysex_message_start = -1;
  38 static int hf_sysex_manufacturer_id = -1;
  39 static int hf_sysex_three_byte_manufacturer_id = -1;
  40 static int hf_sysex_device_id = -1;
  41 static int hf_sysex_message_eox = -1;
  42
  43 static int hf_digitech_family_id = -1;
  44 static int hf_digitech_rp_product_id = -1;
  45 static int hf_digitech_unknown_product_id = -1;
  46 static int hf_digitech_procedure_id = -1;
  47
  48 static int hf_digitech_desired_device_id = -1;
  49 static int hf_digitech_desired_family_id = -1;
  50 static int hf_digitech_desired_product_id = -1;
  51 static int hf_digitech_device_id = -1;
  52 static int hf_digitech_os_mode = -1;
  53
  54 static int hf_digitech_preset_bank = -1;
  55 static int hf_digitech_preset_index = -1;
  56 static int hf_digitech_preset_count = -1;
  57 static int hf_digitech_preset_name = -1;
  58 static int hf_digitech_preset_modified = -1;
  59
  60 static int hf_digitech_message_count = -1;
  61
  62 static int hf_digitech_parameter_count = -1;
  63 static int hf_digitech_parameter_id = -1;
  64 static int hf_digitech_parameter_id_global = -1;
  65 static int hf_digitech_parameter_id_pickup = -1;
  66 static int hf_digitech_parameter_id_wah = -1;
  67 static int hf_digitech_parameter_id_compressor = -1;
  68 static int hf_digitech_parameter_id_gnx3k_whammy = -1;
  69 static int hf_digitech_parameter_id_distortion = -1;
  70 static int hf_digitech_parameter_id_amp_channel = -1;
  71 static int hf_digitech_parameter_id_amp = -1;
  72 static int hf_digitech_parameter_id_amp_cabinet = -1;
  73 static int hf_digitech_parameter_id_amp_b = -1;
  74 static int hf_digitech_parameter_id_amp_cabinet_b = -1;
  75 static int hf_digitech_parameter_id_noisegate = -1;
  76 static int hf_digitech_parameter_id_volume_pre_fx = -1;
  77 static int hf_digitech_parameter_id_chorusfx = -1;
  78 static int hf_digitech_parameter_id_delay = -1;
  79 static int hf_digitech_parameter_id_reverb = -1;
  80 static int hf_digitech_parameter_id_volume_post_fx = -1;
  81 static int hf_digitech_parameter_id_preset = -1;
  82 static int hf_digitech_parameter_id_wah_min_max = -1;
  83 static int hf_digitech_parameter_id_equalizer = -1;
  84 static int hf_digitech_parameter_id_equalizer_b = -1;
  85 static int hf_digitech_parameter_id_amp_loop = -1;
  86
  87 static int hf_digitech_parameter_position = -1;
  88 static int hf_digitech_parameter_data = -1;
  89 static int hf_digitech_parameter_data_count = -1;
  90 static int hf_digitech_parameter_data_two_byte_count = -1;
  91 static int hf_digitech_parameter_multibyte_data = -1;
  92
  93 static int hf_digitech_ack_request_proc_id = -1;
  94 static int hf_digitech_nack_request_proc_id = -1;
  95
  96 static int hf_digitech_checksum = -1;
  97
  98 static gint ett_sysex = -1;
  99
 100 static expert_field ei_sysex_message_start_byte = EI_INIT;
 101 static expert_field ei_digitech_checksum_bad = EI_INIT;
 102 static expert_field ei_sysex_message_end_byte = EI_INIT;
 103 static expert_field ei_sysex_undecoded = EI_INIT;
 104
 105 #define SYSEX_MANUFACTURER_DOD 0x000010
 106
 107 static const value_string sysex_three_byte_manufacturer_id[] = {
 108     {SYSEX_MANUFACTURER_DOD, "DOD Electronics Corp."},
 109     {0, NULL}
 110 };
 111
 112 typedef struct _digitech_conv_data_t {
 113     gint protocol_version;
 114 } digitech_conv_data_t;
 115
 116 #define DIGITECH_FAMILY_X_FLOOR  0x5C
 117 #define DIGITECH_FAMILY_JAMMAN   0x5D
 118 #define DIGITECH_FAMILY_RP       0x5E
 119 #define DIGITECH_FAMILY_RACK     0x5F
 120 #define DIGITECH_FAMILY_VOCALIST 0x60
 121
 122 static const value_string digitech_family_id[] = {
 123     {DIGITECH_FAMILY_X_FLOOR,  "\"X\" Floor Guitar Processor"},
 124     {DIGITECH_FAMILY_JAMMAN,   "JamMan"},
 125     {DIGITECH_FAMILY_RP,       "RP series"},
 126     {DIGITECH_FAMILY_RACK,     "Rack"},
 127     {DIGITECH_FAMILY_VOCALIST, "Vocalist"},
 128     {0x7F, "All"},
 129     {0, NULL}
 130 };
 131
 132 static const value_string digitech_rp_product_id[] = {
 133     {0x01, "RP150"},
 134     {0x02, "RP250"},
 135     {0x03, "RP350"},
 136     {0x04, "RP370"},
 137     {0x05, "RP500"},
 138     {0x06, "RP1000"},
 139     {0x07, "RP155"},
 140     {0x08, "RP255"},
 141     {0x09, "RP355"},
 142     {0, NULL}
 143 };
 144
 145 typedef enum _digitech_procedure_id {
 146     DIGITECH_PROCEDURE_REQUEST_WHO_AM_I = 0x01,
 147     DIGITECH_PROCEDURE_RECEIVE_WHO_AM_I = 0x02,
 148
 149     DIGITECH_PROCEDURE_REQUEST_DEVICE_CONFIGURATION = 0x08,
 150     DIGITECH_PROCEDURE_RECEIVE_DEVICE_CONFIGURATION = 0x09,
 151
 152     DIGITECH_PROCEDURE_REQUEST_GLOBAL_PARAMETERS = 0x10,
 153     DIGITECH_PROCEDURE_RECEIVE_GLOBAL_PARAMETERS = 0x11,
 154
 155     DIGITECH_PROCEDURE_REQUEST_BULK_DUMP = 0x18,
 156     DIGITECH_PROCEDURE_RECEIVE_BULK_DUMP_START = 0x19,
 157     DIGITECH_PROCEDURE_RECEIVE_BULK_DUMP_END = 0x1B,
 158
 159     DIGITECH_PROCEDURE_RECEIVE_USER_PRESET_INDEX_TABLE = 0x20,
 160
 161     DIGITECH_PROCEDURE_REQUEST_PRESET_NAMES = 0x21,
 162     DIGITECH_PROCEDURE_RECEIVE_PRESET_NAMES = 0x22,
 163
 164     DIGITECH_PROCEDURE_REQUEST_PRESET_NAME = 0x28,
 165     DIGITECH_PROCEDURE_RECEIVE_PRESET_NAME = 0x29,
 166
 167     DIGITECH_PROCEDURE_REQUEST_PRESET = 0x2A,
 168     DIGITECH_PROCEDURE_RECEIVE_PRESET_START = 0x2B,
 169     DIGITECH_PROCEDURE_RECEIVE_PRESET_END = 0x2C,
 170     DIGITECH_PROCEDURE_RECEIVE_PRESET_PARAMETERS = 0x2D,
 171
 172     DIGITECH_PROCEDURE_LOAD_EDIT_BUFFER_PRESET = 0x38, /* version 0 only
 173                                        use move preset in later versions */
 174
 175     DIGITECH_PROCEDURE_MOVE_PRESET = 0x39,
 176
 177     DIGITECH_PROCEDURE_REQUEST_MODIFIER_LINKABLE_LIST = 0x3A,
 178     DIGITECH_PROCEDURE_RECEIVE_MODIFIER_LINKABLE_LIST = 0x3B,
 179
 180     DIGITECH_PROCEDURE_REQUEST_PARAMETER_VALUE = 0x40,
 181     DIGITECH_PROCEDURE_RECEIVE_PARAMETER_VALUE = 0x41,
 182
 183     /* version 1 and later */
 184     DIGITECH_PROCEDURE_REQUEST_OBJECT_NAMES = 0x50,
 185     DIGITECH_PROCEDURE_RECEIVE_OBJECT_NAMES = 0x51,
 186     DIGITECH_PROCEDURE_REQUEST_OBJECT_NAME = 0x52,
 187     DIGITECH_PROCEDURE_RECEIVE_OBJECT_NAME = 0x53,
 188     DIGITECH_PROCEDURE_REQUEST_OBJECT = 0x54,
 189     DIGITECH_PROCEDURE_RECEIVE_OBJECT = 0x55,
 190     DIGITECH_PROCEDURE_MOVE_OBJECT = 0x56,
 191     DIGITECH_PROCEDURE_DELETE_OBJECT = 0x57,
 192     DIGITECH_PROCEDURE_REQUEST_TABLE = 0x5A,
 193     DIGITECH_PROCEDURE_RECEIVE_TABLE = 0x5B,
 194
 195     DIGITECH_PROCEDURE_RECEIVE_DEVICE_NOTIFICATION = 0x70,
 196
 197     DIGITECH_PROCEDURE_START_OS_DOWNLOAD = 0x71,
 198     DIGITECH_PROCEDURE_RESTART_DEVICE = 0x72,
 199     DIGITECH_PROCEDURE_REQUEST_DEBUG_DATA = 0x73,
 200     DIGITECH_PROCEDURE_RECEIVE_DEBUG_DATA = 0x74,
 201
 202     DIGITECH_PROCEDURE_ACK = 0x7E,
 203     DIGITECH_PROCEDURE_NACK = 0x7F
 204 } digitech_procedure_id;
 205
 206 static const value_string digitech_procedures[] = {
 207     {DIGITECH_PROCEDURE_REQUEST_WHO_AM_I, "Request WhoAmI"},
 208     {DIGITECH_PROCEDURE_RECEIVE_WHO_AM_I, "Receive WhoAmI"},
 209     {DIGITECH_PROCEDURE_REQUEST_DEVICE_CONFIGURATION, "Request Device Configuration"},
 210     {DIGITECH_PROCEDURE_RECEIVE_DEVICE_CONFIGURATION, "Receive Device Configuration"},
 211     {DIGITECH_PROCEDURE_REQUEST_GLOBAL_PARAMETERS, "Request Global Parameters"},
 212     {DIGITECH_PROCEDURE_RECEIVE_GLOBAL_PARAMETERS, "Receive Global Parameters"},
 213     {DIGITECH_PROCEDURE_REQUEST_BULK_DUMP, "Request Bulk Dump"},
 214     {DIGITECH_PROCEDURE_RECEIVE_BULK_DUMP_START, "Receive Bulk Dump Start"},
 215     {DIGITECH_PROCEDURE_RECEIVE_BULK_DUMP_END, "Receive Bulk Dump End"},
 216     {DIGITECH_PROCEDURE_RECEIVE_USER_PRESET_INDEX_TABLE, "Receive User Preset Index Table"},
 217     {DIGITECH_PROCEDURE_REQUEST_PRESET_NAMES, "Request Preset Names"},
 218     {DIGITECH_PROCEDURE_RECEIVE_PRESET_NAMES, "Receive Preset Names"},
 219     {DIGITECH_PROCEDURE_REQUEST_PRESET_NAME, "Request Preset Name"},
 220     {DIGITECH_PROCEDURE_RECEIVE_PRESET_NAME, "Receive Preset Name"},
 221     {DIGITECH_PROCEDURE_REQUEST_PRESET, "Request Preset"},
 222     {DIGITECH_PROCEDURE_RECEIVE_PRESET_START, "Receive Preset Start"},
 223     {DIGITECH_PROCEDURE_RECEIVE_PRESET_END, "Receive Preset End"},
 224     {DIGITECH_PROCEDURE_RECEIVE_PRESET_PARAMETERS, "Receive Preset Parameters"},
 225     {DIGITECH_PROCEDURE_LOAD_EDIT_BUFFER_PRESET, "Load Edit Buffer Preset"},
 226     {DIGITECH_PROCEDURE_MOVE_PRESET, "Move Preset"},
 227     {DIGITECH_PROCEDURE_REQUEST_MODIFIER_LINKABLE_LIST, "Request Modifier-Linkable List"},
 228     {DIGITECH_PROCEDURE_RECEIVE_MODIFIER_LINKABLE_LIST, "Receive Modifier-Linkable List"},
 229     {DIGITECH_PROCEDURE_REQUEST_PARAMETER_VALUE, "Request Parameter Value"},
 230     {DIGITECH_PROCEDURE_RECEIVE_PARAMETER_VALUE, "Receive Parameter Value"},
 231     {DIGITECH_PROCEDURE_REQUEST_OBJECT_NAMES, "Request Object Names"},
 232     {DIGITECH_PROCEDURE_RECEIVE_OBJECT_NAMES, "Receive Object Names"},
 233     {DIGITECH_PROCEDURE_REQUEST_OBJECT_NAME, "Request Object Name"},
 234     {DIGITECH_PROCEDURE_RECEIVE_OBJECT_NAME, "Receive Object Name"},
 235     {DIGITECH_PROCEDURE_REQUEST_OBJECT, "Request Object"},
 236     {DIGITECH_PROCEDURE_RECEIVE_OBJECT, "Receive Object"},
 237     {DIGITECH_PROCEDURE_MOVE_OBJECT, "Move Object"},
 238     {DIGITECH_PROCEDURE_DELETE_OBJECT, "Delete Object"},
 239     {DIGITECH_PROCEDURE_REQUEST_TABLE, "Request Table"},
 240     {DIGITECH_PROCEDURE_RECEIVE_TABLE, "Receive Table"},
 241     {DIGITECH_PROCEDURE_RECEIVE_DEVICE_NOTIFICATION, "Receive Device Notification"},
 242     {DIGITECH_PROCEDURE_START_OS_DOWNLOAD, "Start OS Download"},
 243     {DIGITECH_PROCEDURE_RESTART_DEVICE, "Restart Device"},
 244     {DIGITECH_PROCEDURE_REQUEST_DEBUG_DATA, "Request Debug Data"},
 245     {DIGITECH_PROCEDURE_RECEIVE_DEBUG_DATA, "Receive Debug Data"},
 246     {DIGITECH_PROCEDURE_ACK, "ACK"},
 247     {DIGITECH_PROCEDURE_NACK, "NACK"},
 248     {0, NULL}
 249 };
 250 static value_string_ext digitech_procedures_ext =
 251     VALUE_STRING_EXT_INIT(digitech_procedures);
 252
 253 static const value_string digitech_os_modes[] = {
 254     {0, "Normal"},
 255     {1, "Flash update"},
 256     {0, NULL}
 257 };
 258
 259 static const value_string digitech_preset_banks[] = {
 260     {0, "Factory (fixed) bank"},
 261     {1, "User bank"},
 262     {2, "Artist bank"},
 263     {3, "Media card (CF or other)"},
 264     {4, "Current preset edit buffer"},
 265     {5, "Second factory bank"},
 266     {6, "External preset"},
 267     {0, NULL}
 268 };
 269
 270 static const value_string digitech_parameter_ids_global[] = {
 271     {12361, "Amp/Cab Bypass On/Off"},
 272     {12298, "GUI Mode On/Off"},
 273     {0, NULL}
 274 };
 275
 276 static const value_string digitech_parameter_ids_pickup[] = {
 277     {65, "Pickup On/Off"},
 278     {0, NULL}
 279 };
 280
 281 static const value_string digitech_parameter_ids_wah[] = {
 282     {129, "Wah On/Off"},
 283     {133, "Wah Level"},
 284     {0, NULL}
 285 };
 286
 287 static const value_string digitech_parameter_ids_compressor[] = {
 288     {193, "Compressor On/Off"},
 289     {194, "Compressor Attack"},
 290     {195, "Compressor Ratio"},
 291     {200, "Compressor Threshold"},
 292     {201, "Compressor Gain"},
 293     {208, "Compressor Sustain"},
 294     {209, "Compressor Tone"},
 295     {210, "Compressor Level"},
 296     {211, "Compressor Attack"},
 297     {212, "Compressor Output"},
 298     {213, "Compressor Sensitivity"},
 299     {0, NULL}
 300 };
 301
 302 static const value_string digitech_parameter_ids_gnx3k_whammy[] = {
 303     {769, "Whammy/IPS On/Off"},
 304     {1667, "Whammy/IPS Detune Level"},
 305     {1670, "Whammy/IPS Detune Shift Amount"},
 306     {1731, "Whammy/IPS Pitch Shift Level"},
 307     {1732, "Whammy/IPS Pitch Shift Shift Amount"},
 308     {1795, "Whammy/IPS Whammy Pedal"},
 309     {1796, "Whammy/IPS Whammy Mix"},
 310     {1797, "Whammy/IPS Whammy Shift Amount"},
 311     {2754, "Whammy/IPS IPS Shift Amount"},
 312     {2755, "Whammy/IPS IPS Scale"},
 313     {2756, "Whammy/IPS IPS Key"},
 314     {2757, "Whammy/IPS IPS Level"},
 315     {2818, "Whammy/IPS Talker Mic Level"},
 316     {0, NULL}
 317 };
 318 static value_string_ext digitech_parameter_ids_gnx3k_whammy_ext =
 319     VALUE_STRING_EXT_INIT(digitech_parameter_ids_gnx3k_whammy);
 320
 321 static const value_string digitech_parameter_ids_distortion[] = {
 322     {2433, "Distortion On/Off"},
 323     {2434, "Distortion Screamer Drive"},
 324     {2435, "Distortion Screamer Tone"},
 325     {2436, "Distortion Screamer Level"},
 326     {2437, "Distortion Rodent Dist"},
 327     {2438, "Distortion Rodent Filter"},
 328     {2439, "Distortion Rodent Level"},
 329     {2440, "Distortion DS Gain"},
 330     {2441, "Distortion DS Tone"},
 331     {2442, "Distortion DS Level"},
 332     {2443, "Distortion DOD250 Gain"},
 333     {2444, "Distortion DOD250 Level"},
 334     {2445, "Distortion Big MP Sustain"},
 335     {2446, "Distortion Big MP Tone"},
 336     {2447, "Distortion Big MP Volume"},
 337     {2448, "Distortion GuyOD Drive"},
 338     {2449, "Distortion GuyOD Level"},
 339     {2450, "Distortion Sparkdrive Gain"},
 340     {2451, "Distortion Sparkdrive Tone"},
 341     {2452, "Distortion Sparkdrive Clean"},
 342     {2453, "Distortion Sparkdrive Volume"},
 343     {2454, "Distortion Grunge Grunge"},
 344     {2455, "Distortion Grunge Butt"},
 345     {2456, "Distortion Grunge Face"},
 346     {2457, "Distortion Grunge Loud"},
 347     {2458, "Distortion Fuzzy Fuzz"},
 348     {2459, "Distortion Fuzzy Volume"},
 349     {2460, "Distortion Zone Gain"},
 350     {2461, "Distortion Zone Mid freq"},
 351     {2462, "Distortion Zone Mid level"},
 352     {2463, "Distortion Zone Low"},
 353     {2464, "Distortion Zone High"},
 354     {2465, "Distortion Zone Level"},
 355     {2466, "Distortion 8tavia Drive"},
 356     {2467, "Distortion 8tavia Volume"},
 357     {2468, "Distortion MX Dist"},
 358     {2469, "Distortion MX Output"},
 359     {2470, "Distortion Gonk Suck"},
 360     {2471, "Distortion Gonk Smear"},
 361     {2472, "Distortion Gonk Heave"},
 362     {2473, "Distortion 808 Overdrive"},
 363     {2474, "Distortion 808 Tone"},
 364     {2475, "Distortion 808 Level"},
 365     {2476, "Distortion Death Mid"},
 366     {2477, "Distortion Death Low"},
 367     {2478, "Distortion Death Level"},
 368     {2479, "Distortion Death High"},
 369     {2480, "Distortion Gonk Gonk"},
 370     {2481, "Distortion Fuzzlator Fuzz"},
 371     {2482, "Distortion Fuzzlator Tone"},
 372     {2483, "Distortion Fuzzlator LooseTight"},
 373     {2484, "Distortion Fuzzlator Volume"},
 374     {2485, "Distortion Classic Fuzz Fuzz"},
 375     {2486, "Distortion Classic Fuzz Tone"},
 376     {2487, "Distortion Classic Fuzz Volume"},
 377     {2488, "Distortion Redline Gain"},
 378     {2489, "Distortion Redline Low"},
 379     {2490, "Distortion Redline High"},
 380     {2491, "Distortion Redline Level"},
 381     {2492, "Distortion OC Drive Drive"},
 382     {2493, "Distortion OC Drive HP/LP"},
 383     {2494, "Distortion OC Drive Tone"},
 384     {2495, "Distortion OC Drive Level"},
 385     {2562, "Distortion TS Mod Drive"},
 386     {2563, "Distortion TS Mod Level"},
 387     {2564, "Distortion TS Mod Tone"},
 388     {2565, "Distortion SD Overdrive Drive"},
 389     {2566, "Distortion SD Overdrive Tone"},
 390     {2567, "Distortion SD Overdrive Level"},
 391     {2568, "Distortion OD Overdrive Overdrive"},
 392     {2569, "Distortion OD Overdrive Level"},
 393     {2570, "Distortion Amp Driver Gain"},
 394     {2571, "Distortion Amp Driver Mid Boost"},
 395     {2572, "Distortion Amp Driver Level"},
 396     {0, NULL}
 397 };
 398 static value_string_ext digitech_parameter_ids_distortion_ext =
 399     VALUE_STRING_EXT_INIT(digitech_parameter_ids_distortion);
 400
 401 static const value_string digitech_parameter_ids_amp_channel[] = {
 402     {260, "Amp Channel Amp Channel"},
 403     {261, "Amp Channel Warp"},
 404     {262, "Amp Channel Amp Warp"},
 405     {263, "Amp Channel Cabinet Warp"},
 406     {0, NULL}
 407 };
 408
 409 static const value_string digitech_parameter_ids_amp[] = {
 410     {265, "Amplifier On/Off"},
 411     {2497, "Amplifier Gain"},
 412     {2498, "Amplifier Level"},
 413     {2499, "Channel 1 Bass Freq"},
 414     {2500, "Channel 1 Bass Level"},
 415     {2501, "Channel 1 Mid Freq"},
 416     {2502, "Channel 1 Mid Level"},
 417     {2503, "Channel 1 Treb Freq"},
 418     {2504, "Channel 1 Treb Level"},
 419     {2505, "EQ Enable On/Off"},
 420     {2506, "Channel 1 Presence"},
 421     {2507, "Amplifier Bass"},
 422     {2508, "Amplifier Mid"},
 423     {2509, "Amplifier Treble"},
 424     {0, NULL}
 425 };
 426 static value_string_ext digitech_parameter_ids_amp_ext =
 427     VALUE_STRING_EXT_INIT(digitech_parameter_ids_amp);
 428
 429 static const value_string digitech_parameter_ids_amp_cabinet[] = {
 430     {2561, "Channel 1 Tuning"},
 431     {0, NULL}
 432 };
 433
 434 static const value_string digitech_parameter_ids_amp_b[] = {
 435     {265, "Amplifier B On/Off"},
 436     {2497, "Amplifier B Gain"},
 437     {2498, "Amplifier B Level"},
 438     {2499, "Channel 2 Bass Freq"},
 439     {2500, "Channel 2 Bass Level"},
 440     {2501, "Channel 2 Mid Freq"},
 441     {2502, "Channel 2 Mid Level"},
 442     {2503, "Channel 2 Treb Freq"},
 443     {2504, "Channel 2 Treb Level"},
 444     {2505, "EQ Enable On/Off"},
 445     {2506, "Channel 2 Presence"},
 446     {0, NULL}
 447 };
 448
 449 static const value_string digitech_parameter_ids_amp_cabinet_b[] = {
 450     {2561, "Channel 2 Tuning"},
 451     {0, NULL}
 452 };
 453
 454 static const value_string digitech_parameter_ids_noisegate[] = {
 455     {705, "Noisegate On/Off"},
 456     {706, "Noisegate Attack"},
 457     {710, "Noisegate Threshold"},
 458     {711, "Noisegate Sens"},
 459     {712, "Noisegate Attack"},
 460     {713, "Noisegate Release"},
 461     {714, "Noisegate Attn"},
 462     {0, NULL}
 463 };
 464
 465 static const value_string digitech_parameter_ids_volume_pre_fx[] = {
 466     {2626, "Pickup Volume Pre FX"},
 467     {0, NULL}
 468 };
 469
 470 static const value_string digitech_parameter_ids_chorusfx[] = {
 471     {769, "Chorus/FX On/Off"},
 472     {836, "Chorus/FX Chorus Level"},
 473     {837, "Chorus/FX Chorus Speed"},
 474     {838, "Chorus/FX CE/Dual/Multi Chorus Depth"},
 475     {839, "Chorus/FX Chorus Predelay"},
 476     {840, "Chorus/FX Dual/Multi Chorus Wave"},
 477     {841, "Chorus/FX Chorus Balance"},
 478     {848, "Chorus/FX Chorus Width"},
 479     {849, "Chorus/FX Chorus Intensity"},
 480     {850, "Chorus/FX Small Clone Rate"},
 481     {901, "Chorus/FX Flanger Level/Mix"},
 482     {902, "Chorus/FX Flanger Speed"},
 483     {903, "Chorus/FX Flanger Depth"},
 484     {904, "Chorus/FX Flanger Regen"},
 485     {905, "Chorus/FX Flanger Waveform"},
 486     {906, "Chorus/FX Flanger Balance"},
 487     {914, "Chorus/FX Flanger Width"},
 488     {916, "Chorus/FX Flanger Color"},
 489     {917, "Chorus/FX Flanger Manual"},
 490     {918, "Chorus/FX Flanger Rate"},
 491     {919, "Chorus/FX Flanger Range"},
 492     {920, "Chorus/FX Flanger Enhance"},
 493     {921, "Chorus/FX Flanger Harmonics"},
 494     {922, "Chorus/FX Filter Flanger Frequency"},
 495     {962, "Chorus/FX Phaser Speed"},
 496     {963, "Chorus/FX Phaser Depth"},
 497     {965, "Chorus/FX Phaser Level"},
 498     {966, "Chorus/FX Phaser Regen"},
 499     {967, "Chorus/FX Phaser Waveform"},
 500     {968, "Chorus/FX Phaser Balance"},
 501     {976, "Chorus/FX MX Phaser Intensity"},
 502     {977, "Chorus/FX EH Phaser Color"},
 503     {979, "Chorus/FX EH Phaser Rate"},
 504     {1028, "Chorus/FX Triggered Flanger Lfo Start"},
 505     {1029, "Chorus/FX Triggered Flanger/Phaser Mix"},
 506     {1030, "Chorus/FX Triggered Flanger Speed"},
 507     {1031, "Chorus/FX Triggered Flanger Sens"},
 508     {1032, "Chorus/FX Triggered Flanger Level"},
 509     {1092, "Chorus/FX Triggered Phaser Lfo Start"},
 510     {1094, "Chorus/FX Triggered Phaser Speed"},
 511     {1095, "Chorus/FX Triggered Phaser Sens"},
 512     {1096, "Chorus/FX Triggered Phaser Level"},
 513     {1155, "Chorus/FX Tremolo Depth"},
 514     {1156, "Chorus/FX Tremolo Speed"},
 515     {1157, "Chorus/FX Tremolo Wave"},
 516     {1219, "Chorus/FX Panner Depth"},
 517     {1220, "Chorus/FX Panner Speed"},
 518     {1221, "Chorus/FX Panner Wave"},
 519     {1284, "Chorus/FX Vibrato Speed"},
 520     {1285, "Chorus/FX Vibrato Depth"},
 521     {1286, "Chorus/FX Vibrato Waveform"},
 522     {1314, "Chorus/FX Vibropan Speed"},
 523     {1315, "Chorus/FX Vibropan Depth"},
 524     {1316, "Chorus/FX Vibropan Vibra"},
 525     {1317, "Chorus/FX Vibropan Wave"},
 526     {1346, "Chorus/FX Rotary Speed"},
 527     {1348, "Chorus/FX Rotary Intensity"},
 528     {1349, "Chorus/FX Rotary Mix"},
 529     {1350, "Chorus/FX Rotary Doppler"},
 530     {1351, "Chorus/FX Rotary Crossover"},
 531     {1352, "Chorus/FX Rotary Balance"},
 532     {1410, "Chorus/FX YaYa Pedal"},
 533     {1412, "Chorus/FX YaYa Range"},
 534     {1413, "Chorus/FX YaYa Mix"},
 535     {1414, "Chorus/FX YaYa Depth"},
 536     {1416, "Chorus/FX YaYa Balance"},
 537     {1417, "Chorus/FX YaYa Intensity"},
 538     {1418, "Chorus/FX YaYa Range"},
 539     {1476, "Chorus/FX AutoYa Range"},
 540     {1477, "Chorus/FX AutoYa Mix"},
 541     {1478, "Chorus/FX AutoYa Speed"},
 542     {1479, "Chorus/FX AutoYa Depth"},
 543     {1481, "Chorus/FX AutoYa Balance"},
 544     {1482, "Chorus/FX AutoYa Intensity"},
 545     {1483, "Chorus/FX AutoYa Range"},
 546     {1540, "Chorus/FX Synthtalk Vox"},
 547     {1542, "Chorus/FX Synthtalk Attack"},
 548     {1543, "Chorus/FX Synthtalk Release"},
 549     {1544, "Chorus/FX Synthtalk Sens"},
 550     {1545, "Chorus/FX Synthtalk Balance"},
 551     {1604, "Chorus/FX Envelope Mix"},
 552     {1605, "Chorus/FX Envelope/FX25 Range"},
 553     {1606, "Chorus/FX Envelope/FX25 Sensitivity"},
 554     {1607, "Chorus/FX Envelope Balance"},
 555     {1608, "Chorus/FX FX25 Blend"},
 556     {1667, "Chorus/FX Detune Level"},
 557     {1668, "Chorus/FX Detune Amount"},
 558     {1669, "Chorus/FX Detune Balance"},
 559     {1730, "Chorus/FX Pitch Shift Amount"},
 560     {1731, "Chorus/FX Pitch Level"},
 561     {1733, "Chorus/FX Pitch Balance"},
 562     {1745, "Chorus/FX Pitch Shift Mix"},
 563     {1746, "Chorus/FX Octaver Octave 1"},
 564     {1747, "Chorus/FX Octaver Octave 2"},
 565     {1748, "Chorus/FX Octaver Dry Level"},
 566     {1795, "Chorus/FX Whammy Pedal"},
 567     {1796, "Chorus/FX Whammy Mix"},
 568     {1797, "Chorus/FX Whammy Amount"},
 569     {2754, "Chorus/FX IPS/Harmony Pitch Shift"},
 570     {2755, "Chorus/FX IPS/Harmony Pitch Scale"},
 571     {2756, "Chorus/FX IPS/Harmony Pitch Key"},
 572     {2757, "Chorus/FX IPS/Harmony Pitch Level"},
 573     {2882, "Chorus/FX Unovibe Chorus/Vibrato"},
 574     {2883, "Chorus/FX Unovibe Intensity"},
 575     {2884, "Chorus/FX Unovibe Pedal Speed"},
 576     {2885, "Chorus/FX Unovibe Volume"},
 577     {3010, "Chorus/FX Step Filter Speed"},
 578     {3011, "Chorus/FX Step Filter Intensity"},
 579     {3012, "Chorus/FX Sample/Hold Speed"},
 580     {3013, "Chorus/FX Sample/Hold Intensity"},
 581     {0, NULL}
 582 };
 583 static value_string_ext digitech_parameter_ids_chorusfx_ext =
 584     VALUE_STRING_EXT_INIT(digitech_parameter_ids_chorusfx);
 585
 586 static const value_string digitech_parameter_ids_delay[] = {
 587     {1857, "Delay On/Off"},
 588     {1860, "Delay Level"},
 589     {1862, "Delay Time"},
 590     {1863, "Delay Repeats"},
 591     {1864, "Delay Thresh"},
 592     {1865, "Delay Atten"},
 593     {1866, "Delay Balance"},
 594     {1867, "Delay Spread"},
 595     {1868, "Delay Tap Time"},
 596     {1873, "Delay Depth"},
 597     {1874, "Delay Repeats"},
 598     {1888, "Delay Time"},
 599     {1889, "Delay Ducker thresh"},
 600     {1890, "Delay Ducker level"},
 601     {1891, "Delay Tape Wow"},
 602     {1892, "Delay Tape Flutter"},
 603     {1893, "Delay Echo Plex Volume"},
 604     {1894, "Delay DM Repeat Rate"},
 605     {1895, "Delay DM Echo"},
 606     {1896, "Delay DM Intensity"},
 607     {1897, "Delay Echo Plex Time"},
 608     {1898, "Delay DM Delay Repeat Rate"},
 609     {1899, "Delay Echo Plex Time"},
 610     {1900, "Delay Tap Time"},
 611     {1901, "Delay Reverse Time"},
 612     {1902, "Delay Reverse Mix"},
 613     {1905, "Delay 2-tap Ratio"},
 614     {0, NULL}
 615 };
 616 static value_string_ext digitech_parameter_ids_delay_ext =
 617     VALUE_STRING_EXT_INIT(digitech_parameter_ids_delay);
 618
 619 static const value_string digitech_parameter_ids_reverb[] = {
 620     {1921, "Reverb On/Off"},
 621     {1922, "Reverb Predelay"},
 622     {1924, "Reverb Damping"},
 623     {1925, "Reverb Level"},
 624     {1927, "Reverb Decay"},
 625     {1928, "Reverb Balance"},
 626     {1933, "Reverb Liveliness"},
 627     {9, NULL}
 628 };
 629
 630 static const value_string digitech_parameter_ids_volume_post_fx[] = {
 631     {2626, "Pickup Volume Post FX"},
 632     {0, NULL}
 633 };
 634
 635 static const value_string digitech_parameter_ids_preset[] = {
 636     {2626, "Pickup Preset Level"},
 637     {0, NULL}
 638 };
 639
 640 static const value_string digitech_parameter_ids_wah_min_max[] = {
 641     {8195, "Wah Min"},
 642     {8196, "Wah Max"},
 643     {0, NULL}
 644 };
 645
 646 static const value_string digitech_parameter_ids_equalizer[] = {
 647     {3203, "Equalizer Bass"},
 648     {3204, "Equalizer Mid"},
 649     {3205, "Equalizer Treble"},
 650     {3206, "Equalizer Mid Hz"},
 651     {3207, "Equalizer Presence"},
 652     {3211, "Equalizer Treb Hz"},
 653     {3212, "Equalizer On/Off"},
 654     {3213, "Equalizer Low Freq"},
 655     {3215, "Equalizer High Freq"},
 656     {3216, "Equalizer Low Bandwidth"},
 657     {3217, "Equalizer Mid Bandwidth"},
 658     {3218, "Equalizer High Bandwidth"},
 659     {0, NULL}
 660 };
 661
 662 static const value_string digitech_parameter_ids_equalizer_b[] = {
 663     {3203, "Equalizer B Bass"},
 664     {3204, "Equalizer B Mid"},
 665     {3205, "Equalizer B Treble"},
 666     {3206, "Equalizer B Mid Hz"},
 667     {3207, "Equalizer B Presence"},
 668     {3211, "Equalizer B Treb Hz"},
 669     {3212, "Equalizer B On/Off"},
 670     {0, NULL}
 671 };
 672
 673 static const value_string digitech_parameter_ids_amp_loop[] = {
 674     {3649, "Amp Loop On/Off"},
 675     {0, NULL}
 676 };
 677
 678 #define DIGITECH_POSITION_GLOBAL 0
 679 #define DIGITECH_POSITION_PICKUP 2
 680 #define DIGITECH_POSITION_WAH 3
 681 #define DIGITECH_POSITION_COMPRESSOR 4
 682 #define DIGITECH_POSITION_GNX3K_WHAMMY 5
 683 #define DIGITECH_POSITION_DISTORTION 6
 684 #define DIGITECH_POSITION_AMP_CHANNEL 7
 685 #define DIGITECH_POSITION_AMP 8
 686 #define DIGITECH_POSITION_AMP_CABINET 9
 687 #define DIGITECH_POSITION_AMP_B 10
 688 #define DIGITECH_POSITION_AMP_CABINET_B 11
 689 #define DIGITECH_POSITION_NOISEGATE 12
 690 #define DIGITECH_POSITION_VOLUME_PRE_FX 13
 691 #define DIGITECH_POSITION_CHORUS_FX 14
 692 #define DIGITECH_POSITION_DELAY 15
 693 #define DIGITECH_POSITION_REVERB 16
 694 #define DIGITECH_POSITION_VOLUME_POST_FX 17
 695 #define DIGITECH_POSITION_PRESET 18
 696 #define DIGITECH_POSITION_EXPRESSION 19
 697 #define DIGITECH_POSITION_WAH_MIN_MAX 20
 698 #define DIGITECH_POSITION_V_SWITCH_ASSIGN 21
 699 #define DIGITECH_POSITION_LFO_1 22
 700 #define DIGITECH_POSITION_LFO_2 23
 701 #define DIGITECH_POSITION_EQUALIZER 24
 702 #define DIGITECH_POSITION_EQUALIZER_B 25
 703 #define DIGITECH_POSITION_LIBRARY 26
 704 #define DIGITECH_POSITION_AMP_LOOP 33
 705 #define DIGITECH_POSITION_WAH_PEDAL 132
 706
 707 static const value_string digitech_parameter_positions[] = {
 708     {DIGITECH_POSITION_GLOBAL,          "Global"},
 709     {DIGITECH_POSITION_PICKUP,          "Pickup"},
 710     {DIGITECH_POSITION_WAH,             "Wah"},
 711     {DIGITECH_POSITION_COMPRESSOR,      "Compressor"},
 712     {DIGITECH_POSITION_GNX3K_WHAMMY,    "GNX3K Whammy"},
 713     {DIGITECH_POSITION_DISTORTION,      "Distortion"},
 714     {DIGITECH_POSITION_AMP_CHANNEL,     "Amp Channel"},
 715     {DIGITECH_POSITION_AMP,             "Amp"},
 716     {DIGITECH_POSITION_AMP_CABINET,     "Amp Cabinet"},
 717     {DIGITECH_POSITION_AMP_B,           "Amp B"},
 718     {DIGITECH_POSITION_AMP_CABINET_B,   "Amp Cabinet B"},
 719     {DIGITECH_POSITION_NOISEGATE,       "Noisegate"},
 720     {DIGITECH_POSITION_VOLUME_PRE_FX,   "Volume Pre Fx"},
 721     {DIGITECH_POSITION_CHORUS_FX,       "Chorus/FX"},
 722     {DIGITECH_POSITION_DELAY,           "Delay"},
 723     {DIGITECH_POSITION_REVERB,          "Reverb"},
 724     {DIGITECH_POSITION_VOLUME_POST_FX,  "Volume Post Fx"},
 725     {DIGITECH_POSITION_PRESET,          "Preset"},
 726     {DIGITECH_POSITION_EXPRESSION,      "Expression"},
 727     {DIGITECH_POSITION_WAH_MIN_MAX,     "Wah Min-Max"},
 728     {DIGITECH_POSITION_V_SWITCH_ASSIGN, "V-Switch Assign"},
 729     {DIGITECH_POSITION_LFO_1,           "LFO 1"},
 730     {DIGITECH_POSITION_LFO_2,           "LFO 2"},
 731     {DIGITECH_POSITION_EQUALIZER,       "Equalizer"},
 732     {DIGITECH_POSITION_EQUALIZER_B,     "Equalizer B"},
 733     {DIGITECH_POSITION_LIBRARY,         "Library"},
 734     {DIGITECH_POSITION_AMP_LOOP,        "Amp Loop"},
 735     {DIGITECH_POSITION_WAH_PEDAL,       "Wah Pedal"},
 736     {0, NULL}
 737 };
 738 static value_string_ext digitech_parameter_positions_ext =
 739     VALUE_STRING_EXT_INIT(digitech_parameter_positions);
 740
 741 static tvbuff_t *
 742 unpack_digitech_message(tvbuff_t *tvb, gint offset)
 743 {
 744     tvbuff_t *next_tvb;
 745     gint length = tvb_length(tvb);
 746     gint data_len = length - offset - 2;
 747     const guint8* data_ptr;
 748     gint remaining = data_len;
 749     guchar* unpacked;
 750     guchar* unpacked_ptr;
 751     gint unpacked_size;
 752     guint8 msb;
 753     gint i;
 754
 755     unpacked_size = data_len - (data_len / 8);
 756     if (data_len % 8)
 757     {
 758         unpacked_size--;
 759     }
 760
 761     data_ptr = tvb_get_ptr(tvb, offset, data_len);
 762     unpacked = (guchar*)g_malloc(unpacked_size);
 763     unpacked_ptr = unpacked;
 764
 765     while (remaining > 0)
 766     {
 767         msb = *data_ptr++;
 768         remaining--;
 769
 770         for (i = 0; (i < 7) && (remaining > 0); ++i, --remaining)
 771         {
 772             *unpacked_ptr = *data_ptr | ((msb << (i + 1)) & 0x80);
 773             unpacked_ptr++;
 774             data_ptr++;
 775         }
 776     }
 777
 778     /* Create new tvb with unpacked data */
 779     next_tvb = tvb_new_child_real_data(tvb, unpacked, unpacked_size, unpacked_size);
 780     tvb_set_free_cb(next_tvb, g_free);
 781
 782     return next_tvb;
 783 }
 784
 785 static int
 786 get_digitech_hf_parameter_id_by_position(guint8 position)
 787 {
 788     int hf_parameter = hf_digitech_parameter_id;
 789
 790     switch (position)
 791     {
 792         case DIGITECH_POSITION_GLOBAL:
 793             hf_parameter = hf_digitech_parameter_id_global;
 794             break;
 795         case DIGITECH_POSITION_PICKUP:
 796             hf_parameter = hf_digitech_parameter_id_pickup;
 797             break;
 798         case DIGITECH_POSITION_WAH:
 799             hf_parameter = hf_digitech_parameter_id_wah;
 800             break;
 801         case DIGITECH_POSITION_COMPRESSOR:
 802             hf_parameter = hf_digitech_parameter_id_compressor;
 803             break;
 804         case DIGITECH_POSITION_GNX3K_WHAMMY:
 805             hf_parameter = hf_digitech_parameter_id_gnx3k_whammy;
 806             break;
 807         case DIGITECH_POSITION_DISTORTION:
 808             hf_parameter = hf_digitech_parameter_id_distortion;
 809             break;
 810         case DIGITECH_POSITION_AMP_CHANNEL:
 811             hf_parameter = hf_digitech_parameter_id_amp_channel;
 812             break;
 813         case DIGITECH_POSITION_AMP:
 814             hf_parameter = hf_digitech_parameter_id_amp;
 815             break;
 816         case DIGITECH_POSITION_AMP_CABINET:
 817             hf_parameter = hf_digitech_parameter_id_amp_cabinet;
 818             break;
 819         case DIGITECH_POSITION_AMP_B:
 820             hf_parameter = hf_digitech_parameter_id_amp_b;
 821             break;
 822         case DIGITECH_POSITION_AMP_CABINET_B:
 823             hf_parameter = hf_digitech_parameter_id_amp_cabinet_b;
 824             break;
 825         case DIGITECH_POSITION_NOISEGATE:
 826             hf_parameter = hf_digitech_parameter_id_noisegate;
 827             break;
 828         case DIGITECH_POSITION_VOLUME_PRE_FX:
 829             hf_parameter = hf_digitech_parameter_id_volume_pre_fx;
 830             break;
 831         case DIGITECH_POSITION_CHORUS_FX:
 832             hf_parameter = hf_digitech_parameter_id_chorusfx;
 833             break;
 834         case DIGITECH_POSITION_DELAY:
 835             hf_parameter = hf_digitech_parameter_id_delay;
 836             break;
 837         case DIGITECH_POSITION_REVERB:
 838             hf_parameter = hf_digitech_parameter_id_reverb;
 839             break;
 840         case DIGITECH_POSITION_VOLUME_POST_FX:
 841             hf_parameter = hf_digitech_parameter_id_volume_post_fx;
 842             break;
 843         case DIGITECH_POSITION_PRESET:
 844             hf_parameter = hf_digitech_parameter_id_preset;
 845             break;
 846         case DIGITECH_POSITION_WAH_MIN_MAX:
 847             hf_parameter = hf_digitech_parameter_id_wah_min_max;
 848             break;
 849         case DIGITECH_POSITION_EQUALIZER:
 850             hf_parameter = hf_digitech_parameter_id_equalizer;
 851             break;
 852         case DIGITECH_POSITION_EQUALIZER_B:
 853             hf_parameter = hf_digitech_parameter_id_equalizer_b;
 854             break;
 855         case DIGITECH_POSITION_AMP_LOOP:
 856             hf_parameter = hf_digitech_parameter_id_amp_loop;
 857             break;
 858
 859         case DIGITECH_POSITION_EXPRESSION:
 860         case DIGITECH_POSITION_V_SWITCH_ASSIGN:
 861         case DIGITECH_POSITION_LFO_1:
 862         case DIGITECH_POSITION_LFO_2:
 863         case DIGITECH_POSITION_LIBRARY:
 864         case DIGITECH_POSITION_WAH_PEDAL:
 865             /* TODO */
 866         default:
 867             break;
 868     }
 869
 870     return hf_parameter;
 871 }
 872
 873 /* Dissects DigiTech parameter starting at data_offset.
 874  * Returns new data_offset.
 875  */
 876 static gint
 877 dissect_digitech_parameter(tvbuff_t *data_tvb, proto_tree *tree,
 878                            digitech_conv_data_t *conv_data, gint data_offset)
 879 {
 880     guint8 digitech_helper;
 881     int hf_parameter = hf_digitech_parameter_id;
 882
 883     /* Version 1 and later specify parameter position */
 884     if (conv_data->protocol_version >= 1)
 885     {
 886         digitech_helper = tvb_get_guint8(data_tvb, data_offset+2);
 887         hf_parameter = get_digitech_hf_parameter_id_by_position(digitech_helper);
 888     }
 889
 890     proto_tree_add_item(tree, hf_parameter, data_tvb, data_offset, 2, ENC_BIG_ENDIAN);
 891     data_offset += 2;
 892
 893     /* Add (optional) position to tree */
 894     if (conv_data->protocol_version >= 1)
 895     {
 896         proto_tree_add_item(tree, hf_digitech_parameter_position, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
 897         data_offset++;
 898     }
 899
 900     digitech_helper = tvb_get_guint8(data_tvb, data_offset);
 901     /* Values 0-127 fit in one byte */
 902     if (digitech_helper < 0x80)
 903     {
 904         proto_tree_add_item(tree, hf_digitech_parameter_data, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
 905         data_offset++;
 906     }
 907     else /* digitech_helper >= 0x80 */
 908     {
 909         guint16 data_count;
 910
 911         /* Single byte data count */
 912         if (digitech_helper > 0x80)
 913         {
 914             data_count = (guint16)(digitech_helper & ~0x80);
 915             proto_tree_add_uint(tree, hf_digitech_parameter_data_count, data_tvb,
 916                                 data_offset, 1, (guint32)data_count);
 917             data_offset++;
 918         }
 919         /* Two-byte data count */
 920         else /* digitech_helper == 0x80 */
 921         {
 922             data_count = (guint16)tvb_get_ntohs(data_tvb, data_offset+1);
 923             proto_tree_add_uint(tree, hf_digitech_parameter_data_two_byte_count, data_tvb,
 924                                 data_offset, 3, (guint32)data_count);
 925             data_offset += 3;
 926         }
 927
 928         proto_tree_add_item(tree, hf_digitech_parameter_multibyte_data, data_tvb,
 929                             data_offset, (gint)data_count, ENC_NA);
 930         data_offset += data_count;
 931     }
 932
 933     return data_offset;
 934 }
 935
 936 static int
 937 get_digitech_hf_product_by_family(guint8 family)
 938 {
 939     int hf_product = hf_digitech_unknown_product_id;
 940
 941     switch (family)
 942     {
 943         case DIGITECH_FAMILY_RP:
 944             hf_product = hf_digitech_rp_product_id;
 945             break;
 946         default:
 947             break;
 948     }
 949
 950     return hf_product;
 951 }
 952
 953 static void
 954 dissect_digitech_procedure(guint8 procedure, const gint offset,
 955                            tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 956 {
 957     tvbuff_t *data_tvb;
 958     gint data_offset;
 959     gint data_len;
 960     guint8 *tmp_string;
 961     guint str_size;
 962     guint16 count;
 963     guint8 digitech_helper;
 964     conversation_t *conversation;
 965     digitech_conv_data_t *conv_data;
 966
 967     conversation = find_or_create_conversation(pinfo);
 968     conv_data = (digitech_conv_data_t *)conversation_get_proto_data(conversation, proto_sysex);
 969
 970     if (conv_data == NULL)
 971     {
 972         conv_data = wmem_new(wmem_file_scope(), digitech_conv_data_t);
 973         conv_data->protocol_version = 1; /* Default to version 1 */
 974     }
 975
 976     /* Procedure data starts at offset and ends two bytes before end
 977      * of System Exclusive packet (one byte is checksum, the other one
 978      * is EOX)
 979      */
 980     if (tvb_length(tvb) - offset < 2)
 981     {
 982         /* There is no DigiTech procedure data, do not attempt further
 983          * dissection */
 984         return;
 985     }
 986
 987     data_tvb = unpack_digitech_message(tvb, offset);
 988     add_new_data_source(pinfo, data_tvb, "Unpacked Procedure Data");
 989
 990     data_offset = 0;
 991     data_len = tvb_length(data_tvb);
 992
 993     switch (procedure)
 994     {
 995         case DIGITECH_PROCEDURE_REQUEST_WHO_AM_I:
 996             proto_tree_add_item(tree, hf_digitech_desired_device_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
 997             data_offset++;
 998             proto_tree_add_item(tree, hf_digitech_desired_family_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
 999             data_offset++;
1000             proto_tree_add_item(tree, hf_digitech_desired_product_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1001             data_offset++;
1002             break;
1003         case DIGITECH_PROCEDURE_RECEIVE_WHO_AM_I:
1004             proto_tree_add_item(tree, hf_digitech_device_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1005             data_offset++;
1006
1007             digitech_helper = tvb_get_guint8(data_tvb, data_offset);
1008             proto_tree_add_item(tree, hf_digitech_family_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1009             data_offset++;
1010
1011             proto_tree_add_item(tree, get_digitech_hf_product_by_family(digitech_helper),
1012                                 data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1013             data_offset++;
1014
1015             if (data_len == 3)
1016             {
1017                 /* Version 0, everything already decoded */
1018                 conv_data->protocol_version = 0;
1019             }
1020             else if (data_len == 4)
1021             {
1022                 /* Version 1 and later */
1023                 conv_data->protocol_version = 1;
1024
1025                 proto_tree_add_item(tree, hf_digitech_os_mode, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1026                 data_offset++;
1027             }
1028             break;
1029         case DIGITECH_PROCEDURE_REQUEST_PRESET_NAMES:
1030             proto_tree_add_item(tree, hf_digitech_preset_bank, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1031             data_offset++;
1032
1033             break;
1034         case DIGITECH_PROCEDURE_RECEIVE_PRESET_NAMES:
1035             proto_tree_add_item(tree, hf_digitech_preset_bank, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1036             data_offset++;
1037
1038             count = (guint16)tvb_get_guint8(data_tvb, data_offset);
1039             proto_tree_add_item(tree, hf_digitech_preset_count, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1040             data_offset++;
1041
1042             while ((count > 0) && (str_size = tvb_strsize(data_tvb, data_offset)))
1043             {
1044                 tmp_string = tvb_get_string_enc(wmem_packet_scope(), data_tvb, data_offset, str_size - 1, ENC_ASCII);
1045                 proto_tree_add_string(tree, hf_digitech_preset_name, data_tvb, data_offset, str_size, tmp_string);
1046                 data_offset += (gint)str_size;
1047                 count--;
1048             }
1049             break;
1050         case DIGITECH_PROCEDURE_REQUEST_PRESET:
1051             proto_tree_add_item(tree, hf_digitech_preset_bank, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1052             data_offset++;
1053
1054             proto_tree_add_item(tree, hf_digitech_preset_index, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1055             data_offset++;
1056             break;
1057         case DIGITECH_PROCEDURE_RECEIVE_PRESET_START:
1058             /* Preset bank */
1059             proto_tree_add_item(tree, hf_digitech_preset_bank, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1060             data_offset++;
1061
1062             /* Preset index */
1063             proto_tree_add_item(tree, hf_digitech_preset_index, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1064             data_offset++;
1065
1066             /* Preset name (NULL-terminated) */
1067             str_size = tvb_strsize(data_tvb, data_offset);
1068             tmp_string = tvb_get_string_enc(wmem_packet_scope(), data_tvb, data_offset, str_size - 1, ENC_ASCII);
1069             proto_tree_add_string(tree, hf_digitech_preset_name, data_tvb, data_offset, str_size, tmp_string);
1070             data_offset += (gint)str_size;
1071
1072             /* Preset modified (0 = unmodified, !0 = modified) */
1073             proto_tree_add_item(tree, hf_digitech_preset_modified, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1074             data_offset++;
1075
1076             /* Message Count */
1077             proto_tree_add_item(tree, hf_digitech_message_count, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1078             data_offset++;
1079             break;
1080         case DIGITECH_PROCEDURE_RECEIVE_PRESET_PARAMETERS:
1081             count = tvb_get_ntohs(data_tvb, data_offset);
1082             proto_tree_add_item(tree, hf_digitech_parameter_count, data_tvb, data_offset, 2, ENC_BIG_ENDIAN);
1083             data_offset += 2;
1084             while (count > 0)
1085             {
1086                 data_offset = dissect_digitech_parameter(data_tvb, tree, conv_data, data_offset);
1087                 count--;
1088             }
1089             break;
1090         case DIGITECH_PROCEDURE_RECEIVE_PARAMETER_VALUE:
1091             data_offset = dissect_digitech_parameter(data_tvb, tree, conv_data, data_offset);
1092             break;
1093         case DIGITECH_PROCEDURE_ACK:
1094             proto_tree_add_item(tree, hf_digitech_ack_request_proc_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1095             data_offset++;
1096             break;
1097         case DIGITECH_PROCEDURE_NACK:
1098             proto_tree_add_item(tree, hf_digitech_nack_request_proc_id, data_tvb, data_offset, 1, ENC_BIG_ENDIAN);
1099             data_offset++;
1100             break;
1101         default:
1102             break;
1103     }
1104
1105     if (data_offset < data_len)
1106     {
1107         proto_tree_add_expert(tree, pinfo, &ei_sysex_undecoded,
1108                                   data_tvb, data_offset, data_len - data_offset);
1109     }
1110 }
1111
1112 /* dissector for System Exclusive MIDI data */
1113 static void
1114 dissect_sysex_command(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
1115 {
1116     guint8 sysex_helper;
1117     gint data_len;
1118     proto_item *item;
1119
1120     col_set_str(pinfo->cinfo, COL_PROTOCOL, "SYSEX");
1121     col_set_str(pinfo->cinfo, COL_INFO, "MIDI System Exclusive Command");
1122
1123     data_len = tvb_length(tvb);
1124
1125     if (parent_tree)
1126     {
1127         proto_item *ti = NULL;
1128         proto_tree *tree = NULL;
1129         gint offset = 0;
1130         guint8 manufacturer_id;
1131         guint32 three_byte_manufacturer_id = 0xFFFFFF;
1132         guint8 procedure_id;
1133
1134         ti = proto_tree_add_protocol_format(parent_tree, proto_sysex, tvb, 0, -1, "MIDI System Exclusive Command");
1135         tree = proto_item_add_subtree(ti, ett_sysex);
1136
1137         /* Check start byte (System Exclusive - 0xF0) */
1138         sysex_helper = tvb_get_guint8(tvb, 0);
1139         item = proto_tree_add_item(tree, hf_sysex_message_start, tvb, offset, 1, ENC_BIG_ENDIAN);
1140         if (sysex_helper != 0xF0)
1141         {
1142             expert_add_info(pinfo, item, &ei_sysex_message_start_byte);
1143         }
1144
1145         offset++;
1146
1147         manufacturer_id = tvb_get_guint8(tvb, offset);
1148         /* Three-byte manufacturer ID starts with 00 */
1149         if (manufacturer_id == 0)
1150         {
1151             three_byte_manufacturer_id = tvb_get_ntoh24(tvb, offset);
1152             proto_tree_add_item(tree, hf_sysex_three_byte_manufacturer_id, tvb, offset, 3, ENC_BIG_ENDIAN);
1153             offset += 3;
1154         }
1155         /* One-byte manufacturer ID */
1156         else
1157         {
1158             proto_tree_add_item(tree, hf_sysex_manufacturer_id, tvb, offset, 1, ENC_BIG_ENDIAN);
1159             offset++;
1160         }
1161
1162         proto_tree_add_item(tree, hf_sysex_device_id, tvb, offset, 1, ENC_BIG_ENDIAN);
1163         offset++;
1164
1165         /* Following data is menufacturer-specific */
1166         switch (three_byte_manufacturer_id)
1167         {
1168             case SYSEX_MANUFACTURER_DOD:
1169             {
1170                 guint8 digitech_helper;
1171                 const guint8 *data_ptr;
1172                 int len;
1173                 int i;
1174
1175                 digitech_helper = tvb_get_guint8(tvb, offset);
1176                 proto_tree_add_item(tree, hf_digitech_family_id, tvb, offset, 1, ENC_BIG_ENDIAN);
1177                 offset++;
1178
1179                 proto_tree_add_item(tree, get_digitech_hf_product_by_family(digitech_helper),
1180                                     tvb, offset, 1, ENC_BIG_ENDIAN);
1181                 offset++;
1182
1183                 procedure_id = tvb_get_guint8(tvb, offset);
1184                 proto_tree_add_item(tree, hf_digitech_procedure_id, tvb, offset, 1, ENC_BIG_ENDIAN);
1185                 offset++;
1186
1187                 dissect_digitech_procedure(procedure_id, offset, tvb, pinfo, tree);
1188
1189                 len = tvb_length(tvb) - 2;
1190                 offset = len; /* Penultimate byte is checksum */
1191                 data_ptr = tvb_get_ptr(tvb, 1, len);
1192                 /* Calculate checksum */
1193                 for (i = 0, digitech_helper = 0; i < len; ++i)
1194                 {
1195                     digitech_helper ^= *data_ptr++;
1196                 }
1197
1198                 item = proto_tree_add_item(tree, hf_digitech_checksum, tvb, offset, 1, ENC_BIG_ENDIAN);
1199                 if (digitech_helper == 0)
1200                 {
1201                     proto_item_append_text(item, " (correct)");
1202                 }
1203                 else
1204                 {
1205                     proto_item_append_text(item, " (NOT correct)");
1206                     expert_add_info(pinfo, item, &ei_digitech_checksum_bad);
1207                 }
1208                 offset++;
1209                 break;
1210             }
1211             default:
1212                 break;
1213         }
1214
1215         if (offset < data_len - 1)
1216         {
1217             proto_tree_add_expert(tree, pinfo, &ei_sysex_undecoded,
1218                                       tvb, offset, data_len - offset - 1);
1219         }
1220
1221         /* Check end byte (EOX - 0xF7) */
1222         sysex_helper = tvb_get_guint8(tvb, data_len - 1);
1223         item = proto_tree_add_item(tree, hf_sysex_message_eox, tvb, data_len - 1, 1, ENC_BIG_ENDIAN);
1224         if (sysex_helper != 0xF7)
1225         {
1226             expert_add_info(pinfo, item, &ei_sysex_message_end_byte);
1227         }
1228     }
1229 }
1230
1231 void
1232 proto_register_sysex(void)
1233 {
1234     static hf_register_info hf[] = {
1235         { &hf_sysex_message_start,
1236             { "SysEx message start", "sysex.start", FT_UINT8, BASE_HEX,
1237               NULL, 0, "System Exclusive Message start (0xF0)", HFILL }},
1238         { &hf_sysex_manufacturer_id,
1239             { "Manufacturer ID", "sysex.manufacturer_id", FT_UINT8, BASE_HEX,
1240               NULL, 0, NULL, HFILL }},
1241         { &hf_sysex_three_byte_manufacturer_id,
1242             { "Manufacturer ID", "sysex.manufacturer_id", FT_UINT24, BASE_HEX,
1243               VALS(sysex_three_byte_manufacturer_id), 0, NULL, HFILL }},
1244         { &hf_sysex_device_id,
1245             { "Device ID", "sysex.device_id", FT_UINT8, BASE_HEX,
1246               NULL, 0, NULL, HFILL }},
1247         { &hf_sysex_message_eox,
1248             { "EOX", "sysex.eox", FT_UINT8, BASE_HEX,
1249               NULL, 0, "System Exclusive Message end (0xF7)", HFILL}},
1250
1251         /* DigiTech manufacturer-specific fields */
1252         { &hf_digitech_family_id,
1253             { "Family ID", "sysex.digitech.family_id", FT_UINT8, BASE_HEX,
1254               VALS(digitech_family_id), 0, NULL, HFILL }},
1255         { &hf_digitech_unknown_product_id,
1256             { "Product ID", "sysex.digitech.product_id", FT_UINT8, BASE_HEX,
1257               NULL, 0, NULL, HFILL }},
1258         { &hf_digitech_rp_product_id,
1259             { "Product ID", "sysex.digitech.product_id", FT_UINT8, BASE_HEX,
1260               VALS(digitech_rp_product_id), 0, NULL, HFILL }},
1261         { &hf_digitech_procedure_id,
1262             { "Procedure ID", "sysex.digitech.procedure_id", FT_UINT8, BASE_HEX | BASE_EXT_STRING,
1263               &digitech_procedures_ext, 0, NULL, HFILL }},
1264
1265         { &hf_digitech_desired_device_id,
1266             { "Desired Device ID", "sysex.digitech.desired_device_id", FT_UINT8, BASE_HEX,
1267               NULL, 0, NULL, HFILL }},
1268         { &hf_digitech_desired_family_id,
1269             { "Desired Family ID", "sysex.digitech.desired_family_id", FT_UINT8, BASE_HEX,
1270               NULL, 0, NULL, HFILL }},
1271         { &hf_digitech_desired_product_id,
1272             { "Desired Product ID", "sysex.digitech.desired_product_id", FT_UINT8, BASE_HEX,
1273               NULL, 0, NULL, HFILL }},
1274         { &hf_digitech_device_id,
1275             { "Device ID", "sysex.digitech.device_id", FT_UINT8, BASE_HEX,
1276               NULL, 0, NULL, HFILL }},
1277         { &hf_digitech_os_mode,
1278             { "OS Mode", "sysex.digitech.os_mode", FT_UINT8, BASE_HEX,
1279               VALS(digitech_os_modes), 0, "DigiTech OS Mode", HFILL }},
1280
1281         { &hf_digitech_preset_bank,
1282             { "Preset Bank", "sysex.digitech.preset_bank", FT_UINT8, BASE_HEX,
1283               VALS(digitech_preset_banks), 0, NULL, HFILL }},
1284         { &hf_digitech_preset_index,
1285             { "Preset Index", "sysex.digitech.preset_index", FT_UINT8, BASE_HEX,
1286               NULL, 0, NULL, HFILL }},
1287         { &hf_digitech_preset_count,
1288             { "Preset Count", "sysex.digitech.preset_count", FT_UINT8, BASE_DEC,
1289               NULL, 0, NULL, HFILL }},
1290         { &hf_digitech_preset_name,
1291             { "Preset Name", "sysex.digitech.preset_name", FT_STRING, BASE_NONE,
1292               NULL, 0, NULL, HFILL }},
1293         { &hf_digitech_preset_modified,
1294             { "Preset Modified", "sysex.digitech.preset_modified", FT_BOOLEAN, BASE_NONE,
1295               TFS(&tfs_yes_no), 0, "Modified flag (0 = unmodified)", HFILL }},
1296
1297         { &hf_digitech_message_count,
1298             { "Messages to follow", "sysex.digitech.message_count", FT_UINT8, BASE_DEC,
1299               NULL, 0, "Number of messages to follow", HFILL }},
1300
1301         { &hf_digitech_parameter_count,
1302             { "Parameter Count", "sysex.digitech.parameter_count", FT_UINT16, BASE_DEC,
1303               NULL, 0, NULL, HFILL }},
1304
1305         { &hf_digitech_parameter_id,
1306             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1307               NULL, 0, NULL, HFILL }},
1308         { &hf_digitech_parameter_id_global,
1309             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1310               VALS(digitech_parameter_ids_global), 0, NULL, HFILL }},
1311         { &hf_digitech_parameter_id_pickup,
1312             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1313               VALS(digitech_parameter_ids_pickup), 0, NULL, HFILL }},
1314         { &hf_digitech_parameter_id_wah,
1315             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1316               VALS(digitech_parameter_ids_wah), 0, NULL, HFILL }},
1317         { &hf_digitech_parameter_id_compressor,
1318             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1319               VALS(digitech_parameter_ids_compressor), 0, NULL, HFILL }},
1320         { &hf_digitech_parameter_id_gnx3k_whammy,
1321             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC | BASE_EXT_STRING,
1322               &digitech_parameter_ids_gnx3k_whammy_ext, 0, NULL, HFILL }},
1323         { &hf_digitech_parameter_id_distortion,
1324             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC | BASE_EXT_STRING,
1325               &digitech_parameter_ids_distortion_ext, 0, NULL, HFILL }},
1326         { &hf_digitech_parameter_id_amp_channel,
1327             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1328               VALS(digitech_parameter_ids_amp_channel), 0, NULL, HFILL }},
1329         { &hf_digitech_parameter_id_amp,
1330             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC | BASE_EXT_STRING,
1331               &digitech_parameter_ids_amp_ext, 0, NULL, HFILL }},
1332         { &hf_digitech_parameter_id_amp_cabinet,
1333             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1334               VALS(digitech_parameter_ids_amp_cabinet), 0, NULL, HFILL }},
1335         { &hf_digitech_parameter_id_amp_b,
1336             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1337               VALS(digitech_parameter_ids_amp_b), 0, NULL, HFILL }},
1338         { &hf_digitech_parameter_id_amp_cabinet_b,
1339             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1340               VALS(digitech_parameter_ids_amp_cabinet_b), 0, NULL, HFILL }},
1341         { &hf_digitech_parameter_id_noisegate,
1342             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1343               VALS(digitech_parameter_ids_noisegate), 0, NULL, HFILL }},
1344         { &hf_digitech_parameter_id_volume_pre_fx,
1345             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1346               VALS(digitech_parameter_ids_volume_pre_fx), 0, NULL, HFILL }},
1347         { &hf_digitech_parameter_id_chorusfx,
1348             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC | BASE_EXT_STRING,
1349               &digitech_parameter_ids_chorusfx_ext, 0, NULL, HFILL }},
1350         { &hf_digitech_parameter_id_delay,
1351             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC | BASE_EXT_STRING,
1352               &digitech_parameter_ids_delay_ext, 0, NULL, HFILL }},
1353         { &hf_digitech_parameter_id_reverb,
1354             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1355               VALS(digitech_parameter_ids_reverb), 0, NULL, HFILL }},
1356         { &hf_digitech_parameter_id_volume_post_fx,
1357             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1358               VALS(digitech_parameter_ids_volume_post_fx), 0, NULL, HFILL }},
1359         { &hf_digitech_parameter_id_preset,
1360             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1361               VALS(digitech_parameter_ids_preset), 0, NULL, HFILL }},
1362         { &hf_digitech_parameter_id_wah_min_max,
1363             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1364               VALS(digitech_parameter_ids_wah_min_max), 0, NULL, HFILL }},
1365         { &hf_digitech_parameter_id_equalizer,
1366             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1367               VALS(digitech_parameter_ids_equalizer), 0, NULL, HFILL }},
1368         { &hf_digitech_parameter_id_equalizer_b,
1369             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1370               VALS(digitech_parameter_ids_equalizer_b), 0, NULL, HFILL }},
1371         { &hf_digitech_parameter_id_amp_loop,
1372             { "Parameter ID", "sysex.digitech.parameter_id", FT_UINT16, BASE_DEC,
1373               VALS(digitech_parameter_ids_amp_loop), 0, NULL, HFILL }},
1374
1375
1376         { &hf_digitech_parameter_position,
1377             { "Parameter position", "sysex.digitech.parameter_position", FT_UINT8, BASE_DEC | BASE_EXT_STRING,
1378               &digitech_parameter_positions_ext, 0, NULL, HFILL }},
1379         { &hf_digitech_parameter_data,
1380             { "Parameter data", "sysex.digitech.parameter_data", FT_UINT8, BASE_DEC,
1381               NULL, 0, NULL, HFILL }},
1382         { &hf_digitech_parameter_data_count,
1383             { "Parameter value count", "sysex.digitech.parameter_data_count", FT_UINT8, BASE_DEC,
1384               NULL, 0, NULL, HFILL }},
1385         { &hf_digitech_parameter_data_two_byte_count,
1386             { "Parameter data count", "sysex.digitech.parameter_data_count", FT_UINT24, BASE_DEC,
1387               NULL, 0, NULL, HFILL }},
1388         { &hf_digitech_parameter_multibyte_data,
1389             { "Parameter data", "sysex.digitech.parameter_data", FT_BYTES, BASE_NONE,
1390               NULL, 0, NULL, HFILL }},
1391
1392         { &hf_digitech_ack_request_proc_id,
1393             { "Requesting Procedure ID", "sysex.digitech.ack.procedure_id", FT_UINT8, BASE_HEX | BASE_EXT_STRING,
1394               &digitech_procedures_ext, 0, "Procedure ID of the request being ACKed", HFILL }},
1395         { &hf_digitech_nack_request_proc_id,
1396             { "Requesting Procedure ID", "sysex.digitech.ack.procedure_id", FT_UINT8, BASE_HEX | BASE_EXT_STRING,
1397               &digitech_procedures_ext, 0, "Procedure ID of the request being NACKed", HFILL }},
1398
1399         { &hf_digitech_checksum,
1400             { "Checksum", "sysex.digitech.checksum", FT_UINT8, BASE_HEX,
1401               NULL, 0, NULL, HFILL }},
1402     };
1403
1404     static gint *sysex_subtrees[] = {
1405         &ett_sysex
1406     };
1407
1408     static ei_register_info ei[] = {
1409         { &ei_sysex_message_start_byte, { "sysex.message_start_byte", PI_PROTOCOL, PI_WARN, "SYSEX Error: Wrong start byte", EXPFILL }},
1410         { &ei_digitech_checksum_bad, { "sysex.digitech.checksum_bad", PI_CHECKSUM, PI_WARN, "ARP packet storm detected", EXPFILL }},
1411         { &ei_sysex_message_end_byte, { "sysex.message_end_byte", PI_PROTOCOL, PI_WARN, "SYSEX Error: Wrong end byte", EXPFILL }},
1412         { &ei_sysex_undecoded, { "sysex.undecoded", PI_UNDECODED, PI_WARN, "Not dissected yet (report to wireshark.org)", EXPFILL }},
1413     };
1414
1415     expert_module_t* expert_sysex;
1416
1417     proto_sysex = proto_register_protocol("MIDI System Exclusive", "SYSEX", "sysex");
1418     proto_register_field_array(proto_sysex, hf, array_length(hf));
1419     proto_register_subtree_array(sysex_subtrees, array_length(sysex_subtrees));
1420     expert_sysex = expert_register_protocol(proto_sysex);
1421     expert_register_field_array(expert_sysex, ei, array_length(ei));
1422
1423     register_dissector("sysex", dissect_sysex_command, proto_sysex);
1424 }
1425
1426 void
1427 proto_reg_handoff_sysex(void)
1428 {
1429 }
1430
1431 /*
1432  * Editor modelines
1433  *
1434  * Local Variables:
1435  * c-basic-offset: 4
1436  * tab-width: 8
1437  * indent-tabs-mode: nil
1438  * End:
1439  *
1440  * ex: set shiftwidth=4 tabstop=8 expandtab:
1441  * :indentSize=4:tabSize=8:noTabs=true:
1442  */