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135 lines
4.8 KiB
135 lines
4.8 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#include "../../HighLevel/USBMode.h"
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#if defined(USB_CAN_BE_HOST)
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#define INCLUDE_FROM_MS_CLASS_HOST_C
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#include "MassStorage.h"
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#warning The Mass Storage Host mode Class driver is currently incomplete and is for preview purposes only.
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uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* MSInterfaceInfo, uint16_t ConfigDescriptorLength,
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uint8_t* DeviceConfigDescriptor)
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{
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uint8_t FoundEndpoints = 0;
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memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State));
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if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration)
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return MS_ENUMERROR_InvalidConfigDescriptor;
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if (USB_GetNextDescriptorComp(&ConfigDescriptorLength, &DeviceConfigDescriptor,
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DComp_NextMassStorageInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return MS_ENUMERROR_NoMSInterfaceFound;
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}
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MSInterfaceInfo->State.InterfaceNumber =
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#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
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DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->InterfaceNumber;
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#else
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DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->bInterfaceNumber;
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#endif
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while (FoundEndpoints != (MS_FOUND_DATAPIPE_IN | MS_FOUND_DATAPIPE_OUT))
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{
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if (USB_GetNextDescriptorComp(&ConfigDescriptorLength, &DeviceConfigDescriptor,
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DComp_NextInterfaceBulkDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return MS_ENUMERROR_EndpointsNotFound;
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}
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t);
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if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
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{
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Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
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EndpointData->EndpointAddress, EndpointData->EndpointSize,
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PIPE_BANK_DOUBLE);
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MSInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
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FoundEndpoints |= MS_FOUND_DATAPIPE_IN;
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}
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else
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{
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Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
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EndpointData->EndpointAddress, EndpointData->EndpointSize,
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PIPE_BANK_DOUBLE);
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MSInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
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FoundEndpoints |= MS_FOUND_DATAPIPE_OUT;
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}
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}
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MSInterfaceInfo->State.Active = true;
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return MS_ENUMERROR_NoError;
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}
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static uint8_t DComp_NextMassStorageInterface(void* CurrentDescriptor)
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{
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if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
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{
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if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == MASS_STORE_CLASS) &&
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(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == MASS_STORE_SUBCLASS) &&
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(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == MASS_STORE_PROTOCOL))
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{
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return DESCRIPTOR_SEARCH_Found;
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}
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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static uint8_t DComp_NextInterfaceBulkDataEndpoint(void* CurrentDescriptor)
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{
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if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
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{
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uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
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USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
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if (EndpointType == EP_TYPE_BULK)
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return DESCRIPTOR_SEARCH_Found;
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}
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else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
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{
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return DESCRIPTOR_SEARCH_Fail;
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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void MS_Host_USBTask(USB_ClassInfo_MS_Host_t* MSInterfaceInfo)
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{
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}
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#endif
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