LUFA/Drivers/USB/Class/Host/StillImage.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   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 #include "../../HighLevel/USBMode.h"
  32 #if defined(USB_CAN_BE_HOST)
  33
  34 #define INCLUDE_FROM_SI_CLASS_HOST_C
  35 #include "StillImage.h"
  36
  37 #warning The Still Image Host mode Class driver is currently incomplete and is for preview purposes only.
  38
  39 uint8_t SI_Host_ConfigurePipes(USB_ClassInfo_SI_Host_t* SIInterfaceInfo, uint16_t ConfigDescriptorSize,
  40                               uint8_t* ConfigDescriptorData)
  41 {
  42         uint8_t  FoundEndpoints = 0;
  43
  44         memset(&SIInterfaceInfo->State, 0x00, sizeof(SIInterfaceInfo->State));
  45
  46         if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
  47           return SI_ENUMERROR_InvalidConfigDescriptor;
  48
  49         if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  50                                       DComp_SI_Host_NextSIInterface) != DESCRIPTOR_SEARCH_COMP_Found)
  51         {
  52                 return SI_ENUMERROR_NoSIInterfaceFound;
  53         }
  54
  55         while (FoundEndpoints != (SI_FOUND_EVENTS_IN | SI_FOUND_DATAPIPE_IN | SI_FOUND_DATAPIPE_OUT))
  56         {
  57                 if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  58                                               DComp_SI_Host_NextSIInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
  59                 {
  60                         return SI_ENUMERROR_EndpointsNotFound;
  61                 }
  62
  63                 USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
  64
  65                 if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
  66                 {
  67                         if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
  68                         {
  69                                 Pipe_ConfigurePipe(SIInterfaceInfo->Config.EventsPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
  70                                                                    EndpointData->EndpointAddress, EndpointData->EndpointSize,
  71                                                                    PIPE_BANK_DOUBLE);
  72                                 SIInterfaceInfo->State.EventsPipeSize = EndpointData->EndpointSize;
  73
  74                                 Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);
  75
  76                                 FoundEndpoints |= SI_FOUND_EVENTS_IN;
  77                         }
  78                 }
  79                 else
  80                 {
  81                         if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
  82                         {
  83                                 Pipe_ConfigurePipe(SIInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
  84                                                                    EndpointData->EndpointAddress, EndpointData->EndpointSize,
  85                                                                    PIPE_BANK_DOUBLE);
  86                                 SIInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
  87
  88                                 FoundEndpoints |= SI_FOUND_DATAPIPE_IN;
  89                         }
  90                         else
  91                         {
  92                                 Pipe_ConfigurePipe(SIInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
  93                                                                    EndpointData->EndpointAddress, EndpointData->EndpointSize,
  94                                                                    PIPE_BANK_DOUBLE);
  95                                 SIInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
  96
  97                                 FoundEndpoints |= SI_FOUND_DATAPIPE_OUT;
  98                         }
  99                 }
 100         }
 101
 102         return SI_ENUMERROR_NoError;
 103 }
 104
 105 uint8_t DComp_SI_Host_NextSIInterface(void* CurrentDescriptor)
 106 {
 107         if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
 108         {
 109                 if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class    == STILL_IMAGE_CLASS)    &&
 110                     (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == STILL_IMAGE_SUBCLASS) &&
 111                     (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == STILL_IMAGE_PROTOCOL))
 112                 {
 113                         return DESCRIPTOR_SEARCH_Found;
 114                 }
 115         }
 116
 117         return DESCRIPTOR_SEARCH_NotFound;
 118 }
 119
 120 uint8_t DComp_SI_Host_NextSIInterfaceEndpoint(void* CurrentDescriptor)
 121 {
 122         if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
 123         {
 124                 USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,
 125                                                                               USB_Descriptor_Endpoint_t);
 126
 127                 uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);
 128
 129                 if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
 130                     (!(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress))))
 131                 {
 132                         return DESCRIPTOR_SEARCH_Found;
 133                 }
 134         }
 135         else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
 136         {
 137                 return DESCRIPTOR_SEARCH_Fail;
 138         }
 139
 140         return DESCRIPTOR_SEARCH_NotFound;
 141 }
 142
 143 void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* SIInterfaceInfo)
 144 {
 145
 146 }
 147
 148 #endif