Bootloaders/Incomplete/MIDI/Descriptors.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  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 disclaim 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 USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
  46 {
  47         .Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
  48
  49         .USBSpecification       = VERSION_BCD(01.10),
  50         .Class                  = 0x00,
  51         .SubClass               = 0x00,
  52         .Protocol               = 0x00,
  53
  54         .Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
  55
  56         .VendorID               = 0x03EB,
  57         .ProductID              = 0x2040,
  58         .ReleaseNumber          = 0x0002,
  59
  60         .ManufacturerStrIndex   = 0x01,
  61         .ProductStrIndex        = 0x02,
  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 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_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED),
  85
  86                         .MaxPowerConsumption      = USB_CONFIG_POWER_MA(100)
  87                 },
  88
  89         .AudioControlInterface =
  90                 {
  91                         .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
  92
  93                         .InterfaceNumber          = 0,
  94                         .AlternateSetting         = 0,
  95
  96                         .TotalEndpoints           = 0,
  97
  98                         .Class                    = 0x01,
  99                         .SubClass                 = 0x01,
 100                         .Protocol                 = 0x00,
 101
 102                         .InterfaceStrIndex        = NO_DESCRIPTOR
 103                 },
 104
 105         .AudioControlInterface_SPC =
 106                 {
 107                         .Header                   = {.Size = sizeof(USB_Audio_Interface_AC_t), .Type = DTYPE_AudioInterface},
 108                         .Subtype                  = DSUBTYPE_Header,
 109
 110                         .ACSpecification          = VERSION_BCD(01.00),
 111                         .TotalLength              = sizeof(USB_Audio_Interface_AC_t),
 112
 113                         .InCollection             = 1,
 114                         .InterfaceNumbers         = {1},
 115                 },
 116
 117         .AudioStreamInterface =
 118                 {
 119                         .Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
 120
 121                         .InterfaceNumber          = 1,
 122                         .AlternateSetting         = 0,
 123
 124                         .TotalEndpoints           = 2,
 125
 126                         .Class                    = 0x01,
 127                         .SubClass                 = 0x03,
 128                         .Protocol                 = 0x00,
 129
 130                         .InterfaceStrIndex        = NO_DESCRIPTOR
 131                 },
 132
 133         .AudioStreamInterface_SPC =
 134                 {
 135                         .Header                   = {.Size = sizeof(USB_Audio_Interface_MIDI_AS_t), .Type = DTYPE_AudioInterface},
 136                         .Subtype                  = DSUBTYPE_General,
 137
 138                         .AudioSpecification       = VERSION_BCD(01.00),
 139
 140                         .TotalLength              = (sizeof(USB_Descriptor_Configuration_t) - offsetof(USB_Descriptor_Configuration_t, AudioStreamInterface_SPC))
 141                 },
 142
 143         .MIDI_In_Jack_Emb =
 144                 {
 145                         .Header                   = {.Size = sizeof(USB_MIDI_In_Jack_t), .Type = DTYPE_AudioInterface},
 146                         .Subtype                  = DSUBTYPE_InputJack,
 147
 148                         .JackType                 = JACKTYPE_EMBEDDED,
 149                         .JackID                   = 0x01,
 150
 151                         .JackStrIndex             = NO_DESCRIPTOR
 152                 },
 153
 154         .MIDI_In_Jack_Ext =
 155                 {
 156                         .Header                   = {.Size = sizeof(USB_MIDI_In_Jack_t), .Type = DTYPE_AudioInterface},
 157                         .Subtype                  = DSUBTYPE_InputJack,
 158
 159                         .JackType                 = JACKTYPE_EXTERNAL,
 160                         .JackID                   = 0x02,
 161
 162                         .JackStrIndex             = NO_DESCRIPTOR
 163                 },
 164
 165         .MIDI_Out_Jack_Emb =
 166                 {
 167                         .Header                   = {.Size = sizeof(USB_MIDI_Out_Jack_t), .Type = DTYPE_AudioInterface},
 168                         .Subtype                  = DSUBTYPE_OutputJack,
 169
 170                         .JackType                 = JACKTYPE_EMBEDDED,
 171                         .JackID                   = 0x03,
 172
 173                         .NumberOfPins             = 1,
 174                         .SourceJackID             = {0x02},
 175                         .SourcePinID              = {0x01},
 176
 177                         .JackStrIndex             = NO_DESCRIPTOR
 178                 },
 179
 180         .MIDI_Out_Jack_Ext =
 181                 {
 182                         .Header                   = {.Size = sizeof(USB_MIDI_Out_Jack_t), .Type = DTYPE_AudioInterface},
 183                         .Subtype                  = DSUBTYPE_OutputJack,
 184
 185                         .JackType                 = JACKTYPE_EXTERNAL,
 186                         .JackID                   = 0x04,
 187
 188                         .NumberOfPins             = 1,
 189                         .SourceJackID             = {0x01},
 190                         .SourcePinID              = {0x01},
 191
 192                         .JackStrIndex             = NO_DESCRIPTOR
 193                 },
 194
 195         .MIDI_In_Jack_Endpoint =
 196                 {
 197                         .Endpoint =
 198                                 {
 199                                         .Header              = {.Size = sizeof(USB_Audio_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
 200
 201                                         .EndpointAddress     = (ENDPOINT_DESCRIPTOR_DIR_OUT | MIDI_STREAM_OUT_EPNUM),
 202                                         .Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 203                                         .EndpointSize        = MIDI_STREAM_EPSIZE,
 204                                         .PollingIntervalMS   = 0
 205                                 },
 206
 207                         .Refresh                  = 0,
 208                         .SyncEndpointNumber       = 0
 209                 },
 210
 211         .MIDI_In_Jack_Endpoint_SPC =
 212                 {
 213                         .Header                   = {.Size = sizeof(USB_MIDI_Jack_Endpoint_t), .Type = DTYPE_AudioEndpoint},
 214                         .Subtype                  = DSUBTYPE_General,
 215
 216                         .TotalEmbeddedJacks       = 0x01,
 217                         .AssociatedJackID         = {0x01}
 218                 },
 219
 220         .MIDI_Out_Jack_Endpoint =
 221                 {
 222                         .Endpoint =
 223                                 {
 224                                         .Header              = {.Size = sizeof(USB_Audio_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
 225
 226                                         .EndpointAddress     = (ENDPOINT_DESCRIPTOR_DIR_IN | MIDI_STREAM_IN_EPNUM),
 227                                         .Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 228                                         .EndpointSize        = MIDI_STREAM_EPSIZE,
 229                                         .PollingIntervalMS   = 0
 230                                 },
 231
 232                         .Refresh                  = 0,
 233                         .SyncEndpointNumber       = 0
 234                 },
 235
 236         .MIDI_Out_Jack_Endpoint_SPC =
 237                 {
 238                         .Header                   = {.Size = sizeof(USB_MIDI_Jack_Endpoint_t), .Type = DTYPE_AudioEndpoint},
 239                         .Subtype                  = DSUBTYPE_General,
 240
 241                         .TotalEmbeddedJacks       = 0x01,
 242                         .AssociatedJackID         = {0x03}
 243                 }
 244 };
 245
 246 /** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
 247  *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
 248  *  via the language ID table available at USB.org what languages the device supports for its string descriptors.
 249  */
 250 USB_Descriptor_String_t PROGMEM LanguageString =
 251 {
 252         .Header                 = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
 253
 254         .UnicodeString          = {LANGUAGE_ID_ENG}
 255 };
 256
 257 /** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
 258  *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 259  *  Descriptor.
 260  */
 261 USB_Descriptor_String_t PROGMEM ManufacturerString =
 262 {
 263         .Header                 = {.Size = USB_STRING_LEN(11), .Type = DTYPE_String},
 264
 265         .UnicodeString          = L"Dean Camera"
 266 };
 267
 268 /** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
 269  *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 270  *  Descriptor.
 271  */
 272 USB_Descriptor_String_t PROGMEM ProductString =
 273 {
 274         .Header                 = {.Size = USB_STRING_LEN(14), .Type = DTYPE_String},
 275
 276         .UnicodeString          = L"LUFA MIDI Demo"
 277 };
 278
 279 /** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
 280  *  documentation) by the application code so that the address and size of a requested descriptor can be given
 281  *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
 282  *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
 283  *  USB host.
 284  */
 285 uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
 286 {
 287         const uint8_t  DescriptorType   = (wValue >> 8);
 288         const uint8_t  DescriptorNumber = (wValue & 0xFF);
 289
 290         void*    Address = NULL;
 291         uint16_t Size    = NO_DESCRIPTOR;
 292
 293         switch (DescriptorType)
 294         {
 295                 case DTYPE_Device:
 296                         Address = (void*)&DeviceDescriptor;
 297                         Size    = sizeof(USB_Descriptor_Device_t);
 298                         break;
 299                 case DTYPE_Configuration:
 300                         Address = (void*)&ConfigurationDescriptor;
 301                         Size    = sizeof(USB_Descriptor_Configuration_t);
 302                         break;
 303                 case DTYPE_String:
 304                         switch (DescriptorNumber)
 305                         {
 306                                 case 0x00:
 307                                         Address = (void*)&LanguageString;
 308                                         Size    = pgm_read_byte(&LanguageString.Header.Size);
 309                                         break;
 310                                 case 0x01:
 311                                         Address = (void*)&ManufacturerString;
 312                                         Size    = pgm_read_byte(&ManufacturerString.Header.Size);
 313                                         break;
 314                                 case 0x02:
 315                                         Address = (void*)&ProductString;
 316                                         Size    = pgm_read_byte(&ProductString.Header.Size);
 317                                         break;
 318                         }
 319
 320                         break;
 321         }
 322
 323         *DescriptorAddress = Address;
 324         return Size;
 325 }