protocol/lufa/LUFA-git/Demos/Device/ClassDriver/DualMIDI/Descriptors.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2014.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2014  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaims all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  USB Device Descriptors, for library use when in USB device mode. Descriptors are special
  34  *  computer-readable structures which the host requests upon device enumeration, to determine
  35  *  the device's capabilities and functions.
  36  */
  37
  38 #include "Descriptors.h"
  39
  40 /** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
  41  *  device characteristics, including the supported USB version, control endpoint size and the
  42  *  number of device configurations. The descriptor is read out by the USB host when the enumeration
  43  *  process begins.
  44  */
  45 const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
  46 {
  47         .Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
  48
  49         .USBSpecification       = VERSION_BCD(1,1,0),
  50         .Class                  = USB_CSCP_NoDeviceClass,
  51         .SubClass               = USB_CSCP_NoDeviceSubclass,
  52         .Protocol               = USB_CSCP_NoDeviceProtocol,
  53
  54         .Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
  55
  56         .VendorID               = 0x03EB,
  57         .ProductID              = 0x206D,
  58         .ReleaseNumber          = VERSION_BCD(0,0,2),
  59
  60         .ManufacturerStrIndex   = STRING_ID_Manufacturer,
  61         .ProductStrIndex        = STRING_ID_Product,
  62         .SerialNumStrIndex      = NO_DESCRIPTOR,
  63
  64         .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
  65 };
  66
  67 /** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
  68  *  of the device in one of its supported configurations, including information about any device interfaces
  69  *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
  70  *  a configuration so that the host may correctly communicate with the USB device.
  71  */
  72 const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
  73 {
  74         .Config =
  75                 {
  76                         .Header                   = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
  77
  78                         .TotalConfigurationSize   = sizeof(USB_Descriptor_Configuration_t),
  79                         .TotalInterfaces          = 2,
  80
  81                         .ConfigurationNumber      = 1,
  82                         .ConfigurationStrIndex    = NO_DESCRIPTOR,
  83
  84                         .ConfigAttributes         = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
  85
  86                         .MaxPowerConsumption      = USB_CONFIG_POWER_MA(100)
  87                 },
  88
  89         .Audio_ControlInterface =
  90                 {
  91                         .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
  92
  93                         .InterfaceNumber          = INTERFACE_ID_AudioControl,
  94                         .AlternateSetting         = 0,
  95
  96                         .TotalEndpoints           = 0,
  97
  98                         .Class                    = AUDIO_CSCP_AudioClass,
  99                         .SubClass                 = AUDIO_CSCP_ControlSubclass,
 100                         .Protocol                 = AUDIO_CSCP_ControlProtocol,
 101
 102                         .InterfaceStrIndex        = NO_DESCRIPTOR
 103                 },
 104
 105         .Audio_ControlInterface_SPC =
 106                 {
 107                         .Header                   = {.Size = sizeof(USB_Audio_Descriptor_Interface_AC_t), .Type = DTYPE_CSInterface},
 108                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_Header,
 109
 110                         .ACSpecification          = VERSION_BCD(1,0,0),
 111                         .TotalLength              = sizeof(USB_Audio_Descriptor_Interface_AC_t),
 112
 113                         .InCollection             = 1,
 114                         .InterfaceNumber          = INTERFACE_ID_AudioStream,
 115                 },
 116
 117         .Audio_StreamInterface =
 118                 {
 119                         .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
 120
 121                         .InterfaceNumber          = INTERFACE_ID_AudioStream,
 122                         .AlternateSetting         = 0,
 123
 124                         .TotalEndpoints           = 2,
 125
 126                         .Class                    = AUDIO_CSCP_AudioClass,
 127                         .SubClass                 = AUDIO_CSCP_MIDIStreamingSubclass,
 128                         .Protocol                 = AUDIO_CSCP_StreamingProtocol,
 129
 130                         .InterfaceStrIndex        = NO_DESCRIPTOR
 131                 },
 132
 133         .Audio_StreamInterface_SPC =
 134                 {
 135                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_AudioInterface_AS_t), .Type = DTYPE_CSInterface},
 136                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_General,
 137
 138                         .AudioSpecification       = VERSION_BCD(1,0,0),
 139
 140                         .TotalLength              = (sizeof(USB_Descriptor_Configuration_t) -
 141                                                      offsetof(USB_Descriptor_Configuration_t, Audio_StreamInterface_SPC))
 142                 },
 143
 144         .MIDI_In_Jack_Emb =
 145                 {
 146                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},
 147                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,
 148
 149                         .JackType                 = MIDI_JACKTYPE_Embedded,
 150                         .JackID                   = 0x01,
 151
 152                         .JackStrIndex             = NO_DESCRIPTOR
 153                 },
 154
 155         .MIDI_In_Jack_Emb2 =
 156                 {
 157                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},
 158                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,
 159
 160                         .JackType                 = MIDI_JACKTYPE_Embedded,
 161                         .JackID                   = 0x02,
 162
 163                         .JackStrIndex             = NO_DESCRIPTOR
 164                 },
 165
 166         .MIDI_In_Jack_Ext =
 167                 {
 168                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},
 169                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,
 170
 171                         .JackType                 = MIDI_JACKTYPE_External,
 172                         .JackID                   = 0x03,
 173
 174                         .JackStrIndex             = NO_DESCRIPTOR
 175                 },
 176
 177         .MIDI_In_Jack_Ext2 =
 178                 {
 179                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},
 180                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,
 181
 182                         .JackType                 = MIDI_JACKTYPE_External,
 183                         .JackID                   = 0x04,
 184
 185                         .JackStrIndex             = NO_DESCRIPTOR
 186                 },
 187
 188         .MIDI_Out_Jack_Emb =
 189                 {
 190                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},
 191                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,
 192
 193                         .JackType                 = MIDI_JACKTYPE_Embedded,
 194                         .JackID                   = 0x05,
 195
 196                         .NumberOfPins             = 1,
 197                         .SourceJackID             = {0x03},
 198                         .SourcePinID              = {0x01},
 199
 200                         .JackStrIndex             = NO_DESCRIPTOR
 201                 },
 202
 203         .MIDI_Out_Jack_Emb2 =
 204                 {
 205                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},
 206                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,
 207
 208                         .JackType                 = MIDI_JACKTYPE_Embedded,
 209                         .JackID                   = 0x06,
 210
 211                         .NumberOfPins             = 1,
 212                         .SourceJackID             = {0x04},
 213                         .SourcePinID              = {0x01},
 214
 215                         .JackStrIndex             = NO_DESCRIPTOR
 216                 },
 217
 218         .MIDI_Out_Jack_Ext =
 219                 {
 220                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},
 221                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,
 222
 223                         .JackType                 = MIDI_JACKTYPE_External,
 224                         .JackID                   = 0x07,
 225
 226                         .NumberOfPins             = 1,
 227                         .SourceJackID             = {0x01},
 228                         .SourcePinID              = {0x01},
 229
 230                         .JackStrIndex             = NO_DESCRIPTOR
 231                 },
 232
 233         .MIDI_Out_Jack_Ext2 =
 234                 {
 235                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},
 236                         .Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,
 237
 238                         .JackType                 = MIDI_JACKTYPE_External,
 239                         .JackID                   = 0x08,
 240
 241                         .NumberOfPins             = 1,
 242                         .SourceJackID             = {0x02},
 243                         .SourcePinID              = {0x01},
 244
 245                         .JackStrIndex             = NO_DESCRIPTOR
 246                 },
 247
 248         .MIDI_In_Jack_Endpoint =
 249                 {
 250                         .Endpoint =
 251                                 {
 252                                         .Header              = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
 253
 254                                         .EndpointAddress     = MIDI_STREAM_OUT_EPADDR,
 255                                         .Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 256                                         .EndpointSize        = MIDI_STREAM_EPSIZE,
 257                                         .PollingIntervalMS   = 0x05
 258                                 },
 259
 260                         .Refresh                  = 0,
 261                         .SyncEndpointNumber       = 0
 262                 },
 263
 264         .MIDI_In_Jack_Endpoint_SPC =
 265                 {
 266                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_DualJack_Endpoint_t), .Type = DTYPE_CSEndpoint},
 267                         .Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,
 268
 269                         .TotalEmbeddedJacks       = 0x02,
 270                         .AssociatedJackID         = {0x01, 0x02}
 271                 },
 272
 273         .MIDI_Out_Jack_Endpoint =
 274                 {
 275                         .Endpoint =
 276                                 {
 277                                         .Header              = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
 278
 279                                         .EndpointAddress     = MIDI_STREAM_IN_EPADDR,
 280                                         .Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 281                                         .EndpointSize        = MIDI_STREAM_EPSIZE,
 282                                         .PollingIntervalMS   = 0x05
 283                                 },
 284
 285                         .Refresh                  = 0,
 286                         .SyncEndpointNumber       = 0
 287                 },
 288
 289         .MIDI_Out_Jack_Endpoint_SPC =
 290                 {
 291                         .Header                   = {.Size = sizeof(USB_MIDI_Descriptor_DualJack_Endpoint_t), .Type = DTYPE_CSEndpoint},
 292                         .Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,
 293
 294                         .TotalEmbeddedJacks       = 0x02,
 295                         .AssociatedJackID         = {0x05, 0x06}
 296                 }
 297 };
 298
 299 /** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
 300  *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
 301  *  via the language ID table available at USB.org what languages the device supports for its string descriptors.
 302  */
 303 const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG);
 304
 305 /** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
 306  *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 307  *  Descriptor.
 308  */
 309 const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"Dean Camera");
 310
 311 /** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
 312  *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 313  *  Descriptor.
 314  */
 315 const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA Dual MIDI Demo");
 316
 317 /** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
 318  *  documentation) by the application code so that the address and size of a requested descriptor can be given
 319  *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
 320  *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
 321  *  USB host.
 322  */
 323 uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
 324                                     const uint8_t wIndex,
 325                                     const void** const DescriptorAddress)
 326 {
 327         const uint8_t  DescriptorType   = (wValue >> 8);
 328         const uint8_t  DescriptorNumber = (wValue & 0xFF);
 329
 330         const void* Address = NULL;
 331         uint16_t    Size    = NO_DESCRIPTOR;
 332
 333         switch (DescriptorType)
 334         {
 335                 case DTYPE_Device:
 336                         Address = &DeviceDescriptor;
 337                         Size    = sizeof(USB_Descriptor_Device_t);
 338                         break;
 339                 case DTYPE_Configuration:
 340                         Address = &ConfigurationDescriptor;
 341                         Size    = sizeof(USB_Descriptor_Configuration_t);
 342                         break;
 343                 case DTYPE_String:
 344                         switch (DescriptorNumber)
 345                         {
 346                                 case STRING_ID_Language:
 347                                         Address = &LanguageString;
 348                                         Size    = pgm_read_byte(&LanguageString.Header.Size);
 349                                         break;
 350                                 case STRING_ID_Manufacturer:
 351                                         Address = &ManufacturerString;
 352                                         Size    = pgm_read_byte(&ManufacturerString.Header.Size);
 353                                         break;
 354                                 case STRING_ID_Product:
 355                                         Address = &ProductString;
 356                                         Size    = pgm_read_byte(&ProductString.Header.Size);
 357                                         break;
 358                         }
 359
 360                         break;
 361         }
 362
 363         *DescriptorAddress = Address;
 364         return Size;
 365 }
 366