LUFA/Drivers/USB/Class/Host/HIDClassHost.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 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "../../Core/USBMode.h"
  33
  34 #if defined(USB_CAN_BE_HOST)
  35
  36 #define  __INCLUDE_FROM_HID_DRIVER
  37 #define  __INCLUDE_FROM_HID_HOST_C
  38 #include "HIDClassHost.h"
  39
  40 uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
  41                                 uint16_t ConfigDescriptorSize,
  42                                 void* ConfigDescriptorData)
  43 {
  44         USB_Descriptor_Endpoint_t*  DataINEndpoint  = NULL;
  45         USB_Descriptor_Endpoint_t*  DataOUTEndpoint = NULL;
  46         USB_Descriptor_Interface_t* HIDInterface    = NULL;
  47         USB_HID_Descriptor_HID_t*   HIDDescriptor   = NULL;
  48
  49         memset(&HIDInterfaceInfo->State, 0x00, sizeof(HIDInterfaceInfo->State));
  50
  51         if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
  52           return HID_ENUMERROR_InvalidConfigDescriptor;
  53
  54         while (!(DataINEndpoint) || !(DataOUTEndpoint))
  55         {
  56                 if (!(HIDInterface) ||
  57                     USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  58                                               DCOMP_HID_Host_NextHIDInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
  59                 {
  60                         if (DataINEndpoint)
  61                           break;
  62
  63                         do
  64                         {
  65                                 if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  66                                                               DCOMP_HID_Host_NextHIDInterface) != DESCRIPTOR_SEARCH_COMP_Found)
  67                                 {
  68                                         return HID_ENUMERROR_NoCompatibleInterfaceFound;
  69                                 }
  70
  71                                 HIDInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
  72                         } while (HIDInterfaceInfo->Config.HIDInterfaceProtocol &&
  73                                          (HIDInterface->Protocol != HIDInterfaceInfo->Config.HIDInterfaceProtocol));
  74
  75                         if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  76                                                       DCOMP_HID_Host_NextHIDDescriptor) != DESCRIPTOR_SEARCH_COMP_Found)
  77                         {
  78                                 return HID_ENUMERROR_NoCompatibleInterfaceFound;
  79                         }
  80
  81                         HIDDescriptor = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_HID_Descriptor_HID_t);
  82
  83                         DataINEndpoint  = NULL;
  84                         DataOUTEndpoint = NULL;
  85
  86                         continue;
  87                 }
  88
  89                 USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
  90
  91                 if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
  92                   DataINEndpoint  = EndpointData;
  93                 else
  94                   DataOUTEndpoint = EndpointData;
  95         }
  96
  97         HIDInterfaceInfo->Config.DataINPipe.Size  = le16_to_cpu(DataINEndpoint->EndpointSize);
  98         HIDInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
  99         HIDInterfaceInfo->Config.DataINPipe.Type  = EP_TYPE_INTERRUPT;
 100
 101         if (!(Pipe_ConfigurePipeTable(&HIDInterfaceInfo->Config.DataINPipe, 1)))
 102           return HID_ENUMERROR_PipeConfigurationFailed;
 103
 104         if (DataOUTEndpoint)
 105         {
 106                 HIDInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
 107                 HIDInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
 108                 HIDInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_INTERRUPT;
 109
 110                 if (!(Pipe_ConfigurePipeTable(&HIDInterfaceInfo->Config.DataOUTPipe, 1)))
 111                   return HID_ENUMERROR_PipeConfigurationFailed;
 112         }
 113
 114         HIDInterfaceInfo->State.InterfaceNumber      = HIDInterface->InterfaceNumber;
 115         HIDInterfaceInfo->State.HIDReportSize        = LE16_TO_CPU(HIDDescriptor->HIDReportLength);
 116         HIDInterfaceInfo->State.SupportsBootProtocol = (HIDInterface->SubClass != HID_CSCP_NonBootProtocol);
 117         HIDInterfaceInfo->State.LargestReportSize    = 8;
 118         HIDInterfaceInfo->State.IsActive             = true;
 119
 120         return HID_ENUMERROR_NoError;
 121 }
 122
 123 static uint8_t DCOMP_HID_Host_NextHIDInterface(void* const CurrentDescriptor)
 124 {
 125         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 126
 127         if (Header->Type == DTYPE_Interface)
 128         {
 129                 USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
 130
 131                 if (Interface->Class == HID_CSCP_HIDClass)
 132                   return DESCRIPTOR_SEARCH_Found;
 133         }
 134
 135         return DESCRIPTOR_SEARCH_NotFound;
 136 }
 137
 138 static uint8_t DCOMP_HID_Host_NextHIDDescriptor(void* const CurrentDescriptor)
 139 {
 140         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 141
 142         if (Header->Type == HID_DTYPE_HID)
 143           return DESCRIPTOR_SEARCH_Found;
 144         else if (Header->Type == DTYPE_Interface)
 145           return DESCRIPTOR_SEARCH_Fail;
 146         else
 147           return DESCRIPTOR_SEARCH_NotFound;
 148 }
 149
 150 static uint8_t DCOMP_HID_Host_NextHIDInterfaceEndpoint(void* const CurrentDescriptor)
 151 {
 152         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 153
 154         if (Header->Type == DTYPE_Endpoint)
 155         {
 156                 USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
 157
 158                 if (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
 159                   return DESCRIPTOR_SEARCH_Found;
 160         }
 161         else if (Header->Type == DTYPE_Interface)
 162         {
 163                 return DESCRIPTOR_SEARCH_Fail;
 164         }
 165
 166         return DESCRIPTOR_SEARCH_NotFound;
 167 }
 168
 169 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 170 uint8_t HID_Host_ReceiveReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
 171                                    const uint8_t ReportID,
 172                                    void* Buffer)
 173 {
 174         USB_ControlRequest = (USB_Request_Header_t)
 175         {
 176                 .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 177                 .bRequest      = HID_REQ_SetReport,
 178                 .wValue        = ((HID_REPORT_ITEM_In + 1) << 8) | ReportID,
 179                 .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 180                 .wLength       = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, ReportID, HID_REPORT_ITEM_In),
 181         };
 182
 183         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 184
 185         return USB_Host_SendControlRequest(Buffer);
 186 }
 187 #endif
 188
 189 uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
 190                                void* Buffer)
 191 {
 192         if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
 193           return PIPE_READYWAIT_DeviceDisconnected;
 194
 195         uint8_t ErrorCode;
 196
 197         Pipe_SelectPipe(HIDInterfaceInfo->Config.DataINPipe.Address);
 198         Pipe_Unfreeze();
 199
 200         uint16_t ReportSize;
 201         uint8_t* BufferPos = Buffer;
 202
 203 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 204         if (!(HIDInterfaceInfo->State.UsingBootProtocol))
 205         {
 206                 uint8_t ReportID = 0;
 207
 208                 if (HIDInterfaceInfo->Config.HIDParserData->UsingReportIDs)
 209                 {
 210                         ReportID = Pipe_Read_8();
 211                         *(BufferPos++) = ReportID;
 212                 }
 213
 214                 ReportSize = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, ReportID, HID_REPORT_ITEM_In);
 215         }
 216         else
 217 #endif
 218         {
 219                 ReportSize = Pipe_BytesInPipe();
 220         }
 221
 222         if ((ErrorCode = Pipe_Read_Stream_LE(BufferPos, ReportSize, NULL)) != PIPE_RWSTREAM_NoError)
 223           return ErrorCode;
 224
 225         Pipe_ClearIN();
 226         Pipe_Freeze();
 227
 228         return PIPE_RWSTREAM_NoError;
 229 }
 230
 231 uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
 232 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 233                                 const uint8_t ReportID,
 234 #endif
 235                                 const uint8_t ReportType,
 236                                 void* Buffer,
 237                                 const uint16_t ReportSize)
 238 {
 239 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 240         if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
 241           return false;
 242
 243         if (HIDInterfaceInfo->State.DeviceUsesOUTPipe && (ReportType == HID_REPORT_ITEM_Out))
 244         {
 245                 uint8_t ErrorCode;
 246
 247                 Pipe_SelectPipe(HIDInterfaceInfo->Config.DataOUTPipe.Address);
 248                 Pipe_Unfreeze();
 249
 250                 if (ReportID)
 251                   Pipe_Write_Stream_LE(&ReportID, sizeof(ReportID), NULL);
 252
 253                 if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, ReportSize, NULL)) != PIPE_RWSTREAM_NoError)
 254                   return ErrorCode;
 255
 256                 Pipe_ClearOUT();
 257                 Pipe_Freeze();
 258
 259                 return PIPE_RWSTREAM_NoError;
 260         }
 261         else
 262 #endif
 263         {
 264                 USB_ControlRequest = (USB_Request_Header_t)
 265                 {
 266                         .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 267                         .bRequest      = HID_REQ_SetReport,
 268 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 269                         .wValue        = ((ReportType + 1) << 8) | ReportID,
 270 #else
 271                         .wValue        = ((ReportType + 1) << 8),
 272 #endif
 273                         .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 274                         .wLength       = ReportSize,
 275                 };
 276
 277                 Pipe_SelectPipe(PIPE_CONTROLPIPE);
 278
 279                 return USB_Host_SendControlRequest(Buffer);
 280         }
 281 }
 282
 283 bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
 284 {
 285         if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
 286           return false;
 287
 288         bool ReportReceived;
 289
 290         Pipe_SelectPipe(HIDInterfaceInfo->Config.DataINPipe.Address);
 291         Pipe_Unfreeze();
 292
 293         ReportReceived = Pipe_IsINReceived();
 294
 295         Pipe_Freeze();
 296
 297         return ReportReceived;
 298 }
 299
 300 uint8_t HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
 301 {
 302         uint8_t ErrorCode;
 303
 304         if (!(HIDInterfaceInfo->State.SupportsBootProtocol))
 305           return HID_ERROR_LOGICAL;
 306
 307         USB_ControlRequest = (USB_Request_Header_t)
 308                 {
 309                         .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 310                         .bRequest      = HID_REQ_SetProtocol,
 311                         .wValue        = 0,
 312                         .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 313                         .wLength       = 0,
 314                 };
 315
 316         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 317
 318         if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
 319           return ErrorCode;
 320
 321         HIDInterfaceInfo->State.LargestReportSize = 8;
 322         HIDInterfaceInfo->State.UsingBootProtocol = true;
 323
 324         return HOST_SENDCONTROL_Successful;
 325 }
 326
 327 uint8_t HID_Host_SetIdlePeriod(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
 328                                const uint16_t MS)
 329 {
 330         USB_ControlRequest = (USB_Request_Header_t)
 331                 {
 332                         .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 333                         .bRequest      = HID_REQ_SetIdle,
 334                         .wValue        = ((MS << 6) & 0xFF00),
 335                         .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 336                         .wLength       = 0,
 337                 };
 338
 339         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 340
 341         return USB_Host_SendControlRequest(NULL);
 342 }
 343
 344 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 345 uint8_t HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
 346 {
 347         uint8_t ErrorCode;
 348
 349         uint8_t HIDReportData[HIDInterfaceInfo->State.HIDReportSize];
 350
 351         USB_ControlRequest = (USB_Request_Header_t)
 352                 {
 353                         .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
 354                         .bRequest      = REQ_GetDescriptor,
 355                         .wValue        = (HID_DTYPE_Report << 8),
 356                         .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 357                         .wLength       = HIDInterfaceInfo->State.HIDReportSize,
 358                 };
 359
 360         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 361
 362         if ((ErrorCode = USB_Host_SendControlRequest(HIDReportData)) != HOST_SENDCONTROL_Successful)
 363           return ErrorCode;
 364
 365         if (HIDInterfaceInfo->State.UsingBootProtocol)
 366         {
 367                 USB_ControlRequest = (USB_Request_Header_t)
 368                         {
 369                                 .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 370                                 .bRequest      = HID_REQ_SetProtocol,
 371                                 .wValue        = 1,
 372                                 .wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
 373                                 .wLength       = 0,
 374                         };
 375
 376                 if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
 377                   return ErrorCode;
 378
 379                 HIDInterfaceInfo->State.UsingBootProtocol = false;
 380         }
 381
 382         if (HIDInterfaceInfo->Config.HIDParserData == NULL)
 383           return HID_ERROR_LOGICAL;
 384
 385         if ((ErrorCode = USB_ProcessHIDReport(HIDReportData, HIDInterfaceInfo->State.HIDReportSize,
 386                                               HIDInterfaceInfo->Config.HIDParserData)) != HID_PARSE_Successful)
 387         {
 388                 return HID_ERROR_LOGICAL | ErrorCode;
 389         }
 390
 391         uint16_t LargestReportSizeBits = HIDInterfaceInfo->Config.HIDParserData->LargestReportSizeBits;
 392         HIDInterfaceInfo->State.LargestReportSize = (LargestReportSizeBits >> 3) + ((LargestReportSizeBits & 0x07) != 0);
 393
 394         return 0;
 395 }
 396 #endif
 397
 398 #endif
 399