X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/64e5c4084f862267d96b0947f462de7058f3dc4c..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Host/Printer.c diff --git a/LUFA/Drivers/USB/Class/Host/Printer.c b/LUFA/Drivers/USB/Class/Host/Printer.c index 192e17f86..46dc1fa5f 100644 --- a/LUFA/Drivers/USB/Class/Host/Printer.c +++ b/LUFA/Drivers/USB/Class/Host/Printer.c @@ -1,250 +1,426 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, provided that the above copyright notice appear in all - copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -#include "../../HighLevel/USBMode.h" -#if defined(USB_CAN_BE_HOST) - -#define INCLUDE_FROM_PRINTER_CLASS_HOST_C -#include "Printer.h" - -uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint16_t ConfigDescriptorSize, - void* DeviceConfigDescriptor) -{ - uint8_t FoundEndpoints = 0; - - memset(&PRNTInterfaceInfo->State, 0x00, sizeof(PRNTInterfaceInfo->State)); - - if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration) - return PRNT_ENUMERROR_InvalidConfigDescriptor; - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DComp_NextPRNTInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return PRNT_ENUMERROR_NoPrinterInterfaceFound; - } - - USB_Descriptor_Interface_t* PrinterInterface = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t); - - PRNTInterfaceInfo->State.InterfaceNumber = PrinterInterface->InterfaceNumber; - PRNTInterfaceInfo->State.AlternateSetting = PrinterInterface->AlternateSetting; - - while (FoundEndpoints != (PRNT_FOUND_DATAPIPE_IN | PRNT_FOUND_DATAPIPE_OUT)) - { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DComp_NextPRNTInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) - { - return PRNT_ENUMERROR_EndpointsNotFound; - } - - USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t); - - if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) - { - Pipe_ConfigurePipe(PRNTInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - PRNTInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - PRNTInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= PRNT_FOUND_DATAPIPE_IN; - } - else - { - Pipe_ConfigurePipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - PRNTInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - PRNTInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= PRNT_FOUND_DATAPIPE_OUT; - } - } - - PRNTInterfaceInfo->State.IsActive = true; - return PRNT_ENUMERROR_NoError; -} - -static uint8_t DComp_NextPRNTInterface(void* CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == PRINTER_CLASS) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == PRINTER_SUBCLASS) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == PRINTER_PROTOCOL)) - { - return DESCRIPTOR_SEARCH_Found; - } - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -static uint8_t DComp_NextPRNTInterfaceEndpoint(void* CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) - { - uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK); - - if (EndpointType == EP_TYPE_BULK) - return DESCRIPTOR_SEARCH_Found; - } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - return DESCRIPTOR_SEARCH_Fail; - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) -{ - -} - -uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) -{ - if (PRNTInterfaceInfo->State.AlternateSetting) - { - uint8_t ErrorCode; - - USB_ControlRequest = (USB_Request_Header_t) - { - bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE), - bRequest: REQ_SetInterface, - wValue: PRNTInterfaceInfo->State.AlternateSetting, - wIndex: PRNTInterfaceInfo->State.InterfaceNumber, - wLength: 0, - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful) - return ErrorCode; - } - - return HOST_SENDCONTROL_Successful; -} - -uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint8_t* const PortStatus) -{ - USB_ControlRequest = (USB_Request_Header_t) - { - bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), - bRequest: REQ_GetPortStatus, - wValue: 0, - wIndex: PRNTInterfaceInfo->State.InterfaceNumber, - wLength: sizeof(uint8_t), - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - return USB_Host_SendControlRequest(PortStatus); -} - -uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) -{ - USB_ControlRequest = (USB_Request_Header_t) - { - bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), - bRequest: REQ_SoftReset, - wValue: 0, - wIndex: PRNTInterfaceInfo->State.InterfaceNumber, - wLength: 0, - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - return USB_Host_SendControlRequest(NULL); -} - -uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, void* PrinterCommands, uint16_t CommandSize) -{ - uint8_t ErrorCode; - - Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_Unfreeze(); - - if ((ErrorCode = Pipe_Write_Stream_LE(PrinterCommands, CommandSize, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - return ErrorCode; - - Pipe_ClearOUT(); - while (!(Pipe_IsOUTReady())) - { - if (USB_HostState == HOST_STATE_Unattached) - return PIPE_RWSTREAM_DeviceDisconnected; - } - - Pipe_Freeze(); - - return PIPE_RWSTREAM_NoError; -} - -uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, char* DeviceIDString, uint16_t BufferSize) -{ - uint8_t ErrorCode = HOST_SENDCONTROL_Successful; - uint16_t DeviceIDStringLength = 0; - - USB_ControlRequest = (USB_Request_Header_t) - { - bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), - bRequest: REQ_GetDeviceID, - wValue: 0, - wIndex: PRNTInterfaceInfo->State.InterfaceNumber, - wLength: sizeof(DeviceIDStringLength), - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful) - return ErrorCode; - - if (!(DeviceIDStringLength)) - { - DeviceIDString[0] = 0x00; - return HOST_SENDCONTROL_Successful; - } - - DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength); - - if (DeviceIDStringLength > BufferSize) - DeviceIDStringLength = BufferSize; - - USB_ControlRequest.wLength = DeviceIDStringLength; - - if ((ErrorCode = USB_Host_SendControlRequest(DeviceIDString)) != HOST_SENDCONTROL_Successful) - return ErrorCode; - - memmove(&DeviceIDString[0], &DeviceIDString[2], DeviceIDStringLength - 2); - - DeviceIDString[DeviceIDStringLength - 2] = 0x00; - - return HOST_SENDCONTROL_Successful; -} - -#endif +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +#define __INCLUDE_FROM_USB_DRIVER +#include "../../Core/USBMode.h" + +#if defined(USB_CAN_BE_HOST) + +#define __INCLUDE_FROM_PRINTER_DRIVER +#define __INCLUDE_FROM_PRINTER_HOST_C +#include "Printer.h" + +uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* ConfigDescriptorData) +{ + USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; + USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; + USB_Descriptor_Interface_t* PrinterInterface = NULL; + + memset(&PRNTInterfaceInfo->State, 0x00, sizeof(PRNTInterfaceInfo->State)); + + if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) + return PRNT_ENUMERROR_InvalidConfigDescriptor; + + while (!(DataINEndpoint) || !(DataOUTEndpoint)) + { + if (!(PrinterInterface) || + USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + { + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_PRNT_Host_NextPRNTInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return PRNT_ENUMERROR_NoCompatibleInterfaceFound; + } + + PrinterInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t); + + DataINEndpoint = NULL; + DataOUTEndpoint = NULL; + + continue; + } + + USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); + + if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + DataINEndpoint = EndpointData; + else + DataOUTEndpoint = EndpointData; + } + + for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++) + { + uint16_t Size; + uint8_t Type; + uint8_t Token; + uint8_t EndpointAddress; + bool DoubleBanked; + + if (PipeNum == PRNTInterfaceInfo->Config.DataINPipeNumber) + { + Size = le16_to_cpu(DataINEndpoint->EndpointSize); + EndpointAddress = DataINEndpoint->EndpointAddress; + Token = PIPE_TOKEN_IN; + Type = EP_TYPE_BULK; + DoubleBanked = PRNTInterfaceInfo->Config.DataINPipeDoubleBank; + + PRNTInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize; + } + else if (PipeNum == PRNTInterfaceInfo->Config.DataOUTPipeNumber) + { + Size = le16_to_cpu(DataOUTEndpoint->EndpointSize); + EndpointAddress = DataOUTEndpoint->EndpointAddress; + Token = PIPE_TOKEN_OUT; + Type = EP_TYPE_BULK; + DoubleBanked = PRNTInterfaceInfo->Config.DataOUTPipeDoubleBank; + + PRNTInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize; + } + else + { + continue; + } + + if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size, + DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE))) + { + return PRNT_ENUMERROR_PipeConfigurationFailed; + } + } + + PRNTInterfaceInfo->State.InterfaceNumber = PrinterInterface->InterfaceNumber; + PRNTInterfaceInfo->State.AlternateSetting = PrinterInterface->AlternateSetting; + PRNTInterfaceInfo->State.IsActive = true; + + return PRNT_ENUMERROR_NoError; +} + +static uint8_t DCOMP_PRNT_Host_NextPRNTInterface(void* CurrentDescriptor) +{ + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Interface) + { + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); + + if ((Interface->Class == PRNT_CSCP_PrinterClass) && + (Interface->SubClass == PRNT_CSCP_PrinterSubclass) && + (Interface->Protocol == PRNT_CSCP_BidirectionalProtocol)) + { + return DESCRIPTOR_SEARCH_Found; + } + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +static uint8_t DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint(void* CurrentDescriptor) +{ + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Endpoint) + { + USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t); + + uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK); + + if (EndpointType == EP_TYPE_BULK) + return DESCRIPTOR_SEARCH_Found; + } + else if (Header->Type == DTYPE_Interface) + { + return DESCRIPTOR_SEARCH_Fail; + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return; + + #if !defined(NO_CLASS_DRIVER_AUTOFLUSH) + PRNT_Host_Flush(PRNTInterfaceInfo); + #endif +} + +uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + if (PRNTInterfaceInfo->State.AlternateSetting) + { + uint8_t ErrorCode; + + if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PRNTInterfaceInfo->State.InterfaceNumber, + PRNTInterfaceInfo->State.AlternateSetting)) != HOST_SENDCONTROL_Successful) + { + return ErrorCode; + } + } + + return HOST_SENDCONTROL_Successful; +} + +uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + uint8_t* const PortStatus) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = PRNT_REQ_GetPortStatus, + .wValue = 0, + .wIndex = PRNTInterfaceInfo->State.InterfaceNumber, + .wLength = sizeof(uint8_t), + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + return USB_Host_SendControlRequest(PortStatus); +} + +uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = PRNT_REQ_SoftReset, + .wValue = 0, + .wIndex = PRNTInterfaceInfo->State.InterfaceNumber, + .wLength = 0, + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + return USB_Host_SendControlRequest(NULL); +} + +uint8_t PRNT_Host_Flush(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if (!(Pipe_BytesInPipe())) + return PIPE_READYWAIT_NoError; + + bool BankFull = !(Pipe_IsReadWriteAllowed()); + + Pipe_ClearOUT(); + + if (BankFull) + { + if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) + return ErrorCode; + + Pipe_ClearOUT(); + } + + Pipe_Freeze(); + + return PIPE_READYWAIT_NoError; +} + +uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + const uint8_t Data) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if (!(Pipe_IsReadWriteAllowed())) + { + Pipe_ClearOUT(); + + if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) + return ErrorCode; + } + + Pipe_Write_8(Data); + Pipe_Freeze(); + + return PIPE_READYWAIT_NoError; +} + +uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + void* String) +{ + uint8_t ErrorCode; + + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return PIPE_RWSTREAM_DeviceDisconnected; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_ClearOUT(); + + ErrorCode = Pipe_WaitUntilReady(); + + Pipe_Freeze(); + + return ErrorCode; +} + +uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + void* Buffer, + const uint16_t Length) +{ + uint8_t ErrorCode; + + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return PIPE_RWSTREAM_DeviceDisconnected; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_ClearOUT(); + + ErrorCode = Pipe_WaitUntilReady(); + + Pipe_Freeze(); + + return ErrorCode; +} + +uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return 0; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsINReceived()) + { + if (!(Pipe_BytesInPipe())) + { + Pipe_ClearIN(); + Pipe_Freeze(); + return 0; + } + else + { + Pipe_Freeze(); + return Pipe_BytesInPipe(); + } + } + else + { + Pipe_Freeze(); + + return 0; + } +} + +int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive)) + return PIPE_RWSTREAM_DeviceDisconnected; + + int16_t ReceivedByte = -1; + + Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsINReceived()) + { + if (Pipe_BytesInPipe()) + ReceivedByte = Pipe_Read_8(); + + if (!(Pipe_BytesInPipe())) + Pipe_ClearIN(); + } + + Pipe_Freeze(); + + return ReceivedByte; +} + +uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, + char* const DeviceIDString, + const uint16_t BufferSize) +{ + uint8_t ErrorCode = HOST_SENDCONTROL_Successful; + uint16_t DeviceIDStringLength = 0; + + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = PRNT_REQ_GetDeviceID, + .wValue = 0, + .wIndex = PRNTInterfaceInfo->State.InterfaceNumber, + .wLength = sizeof(DeviceIDStringLength), + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful) + return ErrorCode; + + if (!(DeviceIDStringLength)) + { + DeviceIDString[0] = 0x00; + return HOST_SENDCONTROL_Successful; + } + + DeviceIDStringLength = be16_to_cpu(DeviceIDStringLength); + + if (DeviceIDStringLength > BufferSize) + DeviceIDStringLength = BufferSize; + + USB_ControlRequest.wLength = DeviceIDStringLength; + + if ((ErrorCode = USB_Host_SendControlRequest(DeviceIDString)) != HOST_SENDCONTROL_Successful) + return ErrorCode; + + memmove(&DeviceIDString[0], &DeviceIDString[2], DeviceIDStringLength - 2); + + DeviceIDString[DeviceIDStringLength - 2] = 0x00; + + return HOST_SENDCONTROL_Successful; +} + +#endif +