X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/5aa2b26261389cfbdfae8e793be4b8150ddc7a0a..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Host/CDC.c diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c index d1e63b591..2e83365e1 100644 --- a/LUFA/Drivers/USB/Class/Host/CDC.c +++ b/LUFA/Drivers/USB/Class/Host/CDC.c @@ -1,418 +1,513 @@ -/* - 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_CDC_CLASS_HOST_C -#include "CDC.h" - -uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, uint16_t ConfigDescriptorSize, - void* ConfigDescriptorData) -{ - uint8_t FoundEndpoints = 0; - - memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); - - if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) - return CDC_ENUMERROR_InvalidConfigDescriptor; - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return CDC_ENUMERROR_NoCDCInterfaceFound; - } - - CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber; - - while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT)) - { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) - { - if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN) - { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return CDC_ENUMERROR_NoCDCInterfaceFound; - } - } - else - { - FoundEndpoints = 0; - - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); - Pipe_DisablePipe(); - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_DisablePipe(); - Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); - Pipe_DisablePipe(); - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return CDC_ENUMERROR_NoCDCInterfaceFound; - } - } - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) - { - return CDC_ENUMERROR_EndpointsNotFound; - } - } - - USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); - - if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT) - { - if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) - { - Pipe_ConfigurePipe(CDCInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - CDCInterfaceInfo->Config.NotificationPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - CDCInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize; - - Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS); - - FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN; - } - } - else - { - if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) - { - if (Pipe_IsEndpointBound(EndpointData->EndpointAddress)) - { - CDCInterfaceInfo->State.BidirectionalDataEndpoints = true; - Pipe_DisablePipe(); - } - - Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - CDCInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - CDCInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= CDC_FOUND_DATAPIPE_IN; - } - else - { - if (Pipe_IsEndpointBound(EndpointData->EndpointAddress)) - { - CDCInterfaceInfo->State.BidirectionalDataEndpoints = true; - } - else - { - Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - CDCInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - } - - CDCInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= CDC_FOUND_DATAPIPE_OUT; - } - } - } - - CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR); - CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR); - CDCInterfaceInfo->State.IsActive = true; - return CDC_ENUMERROR_NoError; -} - -static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* const CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Interface_t); - - if ((CurrentInterface->Class == CDC_CONTROL_CLASS) && - (CurrentInterface->SubClass == CDC_CONTROL_SUBCLASS) && - (CurrentInterface->Protocol == CDC_CONTROL_PROTOCOL)) - { - return DESCRIPTOR_SEARCH_Found; - } - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* const CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Interface_t); - - if ((CurrentInterface->Class == CDC_DATA_CLASS) && - (CurrentInterface->SubClass == CDC_DATA_SUBCLASS) && - (CurrentInterface->Protocol == CDC_DATA_PROTOCOL)) - { - return DESCRIPTOR_SEARCH_Found; - } - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -static uint8_t DComp_CDC_Host_NextCDCInterfaceEndpoint(void* const CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) - { - USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t); - - uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK); - - if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) - { - return DESCRIPTOR_SEARCH_Found; - } - } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - return DESCRIPTOR_SEARCH_Fail; - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) -{ - if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) - return; - - Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); - Pipe_SetPipeToken(PIPE_TOKEN_IN); - Pipe_Unfreeze(); - - if (Pipe_IsINReceived()) - { - USB_Request_Header_t Notification; - Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK); - - if ((Notification.bRequest == NOTIF_SerialState) && - (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))) - { - Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, - sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), - NO_STREAM_CALLBACK); - - } - - Pipe_ClearIN(); - - EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo); - } - - Pipe_Freeze(); -} - -uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) -{ - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = REQ_SetLineEncoding, - .wValue = 0, - .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, - .wLength = sizeof(CDCInterfaceInfo->State.LineEncoding), - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding); -} - -uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) -{ - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = REQ_SetControlLineState, - .wValue = CDCInterfaceInfo->State.ControlLineStates.HostToDevice, - .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, - .wLength = 0, - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - return USB_Host_SendControlRequest(NULL); -} - -uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, char* Data, const uint16_t Length) -{ - if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) - return PIPE_READYWAIT_DeviceDisconnected; - - uint8_t ErrorCode; - - if (CDCInterfaceInfo->State.BidirectionalDataEndpoints) - { - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); - Pipe_SetPipeToken(PIPE_TOKEN_IN); - } - else - { - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); - } - - Pipe_Unfreeze(); - ErrorCode = Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK); - Pipe_Freeze(); - - if (CDCInterfaceInfo->State.BidirectionalDataEndpoints) - Pipe_SetPipeToken(PIPE_TOKEN_IN); - - return ErrorCode; -} - -uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, const uint8_t Data) -{ - if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) - return PIPE_READYWAIT_DeviceDisconnected; - - uint8_t ErrorCode; - - if (CDCInterfaceInfo->State.BidirectionalDataEndpoints) - { - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); - Pipe_SetPipeToken(PIPE_TOKEN_IN); - } - else - { - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); - } - - Pipe_Unfreeze(); - - if (!(Pipe_IsReadWriteAllowed())) - { - Pipe_ClearOUT(); - - if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) - return ErrorCode; - } - - Pipe_Write_Byte(Data); - Pipe_Freeze(); - - if (CDCInterfaceInfo->State.BidirectionalDataEndpoints) - Pipe_SetPipeToken(PIPE_TOKEN_IN); - - return PIPE_READYWAIT_NoError; -} - -uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) -{ - uint16_t BytesInPipe = 0; - - if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) - return 0; - - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); - Pipe_SetPipeToken(PIPE_TOKEN_IN); - Pipe_Unfreeze(); - - if (Pipe_IsINReceived() && !(Pipe_BytesInPipe())) - Pipe_ClearIN(); - - BytesInPipe = Pipe_BytesInPipe(); - Pipe_Freeze(); - - return BytesInPipe; -} - -uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) -{ - uint8_t ReceivedByte = 0; - - if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) - return 0; - - Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); - Pipe_SetPipeToken(PIPE_TOKEN_IN); - Pipe_Unfreeze(); - - ReceivedByte = Pipe_Read_Byte(); - - if (!(Pipe_BytesInPipe())) - Pipe_ClearIN(); - - Pipe_Freeze(); - - return ReceivedByte; -} - -void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream) -{ - *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW); - fdev_set_udata(Stream, CDCInterfaceInfo); -} - -void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream) -{ - *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW); - fdev_set_udata(Stream, CDCInterfaceInfo); -} - -static int CDC_Host_putchar(char c, FILE* Stream) -{ - return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0; -} - -static int CDC_Host_getchar(FILE* Stream) -{ - if (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)))) - return _FDEV_EOF; - - return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); -} - -static int CDC_Host_getchar_Blocking(FILE* Stream) -{ - while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)))) - { - CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); - USB_USBTask(); - } - - return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); -} - -void CDC_Host_Event_Stub(void) -{ - -} - -#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_CDC_DRIVER +#define __INCLUDE_FROM_CDC_HOST_C +#include "CDC.h" + +uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* ConfigDescriptorData) +{ + USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; + USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; + USB_Descriptor_Endpoint_t* NotificationEndpoint = NULL; + USB_Descriptor_Interface_t* CDCControlInterface = NULL; + + memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); + + if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) + return CDC_ENUMERROR_InvalidConfigDescriptor; + + while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint)) + { + if (!(CDCControlInterface) || + USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + { + if (NotificationEndpoint) + { + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return CDC_ENUMERROR_NoCompatibleInterfaceFound; + } + + DataINEndpoint = NULL; + DataOUTEndpoint = NULL; + } + else + { + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return CDC_ENUMERROR_NoCompatibleInterfaceFound; + } + + CDCControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t); + + NotificationEndpoint = NULL; + } + + continue; + } + + USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); + + if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + { + if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT) + NotificationEndpoint = EndpointData; + else + 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; + uint8_t InterruptPeriod; + bool DoubleBanked; + + if (PipeNum == CDCInterfaceInfo->Config.DataINPipeNumber) + { + Size = le16_to_cpu(DataINEndpoint->EndpointSize); + EndpointAddress = DataINEndpoint->EndpointAddress; + Token = PIPE_TOKEN_IN; + Type = EP_TYPE_BULK; + DoubleBanked = CDCInterfaceInfo->Config.DataINPipeDoubleBank; + InterruptPeriod = 0; + + CDCInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize; + } + else if (PipeNum == CDCInterfaceInfo->Config.DataOUTPipeNumber) + { + Size = le16_to_cpu(DataOUTEndpoint->EndpointSize); + EndpointAddress = DataOUTEndpoint->EndpointAddress; + Token = PIPE_TOKEN_OUT; + Type = EP_TYPE_BULK; + DoubleBanked = CDCInterfaceInfo->Config.DataOUTPipeDoubleBank; + InterruptPeriod = 0; + + CDCInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize; + } + else if (PipeNum == CDCInterfaceInfo->Config.NotificationPipeNumber) + { + Size = le16_to_cpu(NotificationEndpoint->EndpointSize); + EndpointAddress = NotificationEndpoint->EndpointAddress; + Token = PIPE_TOKEN_IN; + Type = EP_TYPE_INTERRUPT; + DoubleBanked = CDCInterfaceInfo->Config.NotificationPipeDoubleBank; + InterruptPeriod = NotificationEndpoint->PollingIntervalMS; + + CDCInterfaceInfo->State.NotificationPipeSize = NotificationEndpoint->EndpointSize; + } + else + { + continue; + } + + if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size, + DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE))) + { + return CDC_ENUMERROR_PipeConfigurationFailed; + } + + if (InterruptPeriod) + Pipe_SetInterruptPeriod(InterruptPeriod); + } + + CDCInterfaceInfo->State.ControlInterfaceNumber = CDCControlInterface->InterfaceNumber; + CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR); + CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR); + CDCInterfaceInfo->State.IsActive = true; + + return CDC_ENUMERROR_NoError; +} + +static uint8_t DCOMP_CDC_Host_NextCDCControlInterface(void* const 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 == CDC_CSCP_CDCClass) && + (Interface->SubClass == CDC_CSCP_ACMSubclass) && + (Interface->Protocol == CDC_CSCP_ATCommandProtocol)) + { + return DESCRIPTOR_SEARCH_Found; + } + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +static uint8_t DCOMP_CDC_Host_NextCDCDataInterface(void* const 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 == CDC_CSCP_CDCDataClass) && + (Interface->SubClass == CDC_CSCP_NoDataSubclass) && + (Interface->Protocol == CDC_CSCP_NoDataProtocol)) + { + return DESCRIPTOR_SEARCH_Found; + } + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +static uint8_t DCOMP_CDC_Host_NextCDCInterfaceEndpoint(void* const 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) || (EndpointType == EP_TYPE_INTERRUPT)) && + !(Pipe_IsEndpointBound(Endpoint->EndpointAddress))) + { + return DESCRIPTOR_SEARCH_Found; + } + } + else if (Header->Type == DTYPE_Interface) + { + return DESCRIPTOR_SEARCH_Fail; + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsINReceived()) + { + USB_Request_Header_t Notification; + Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL); + + if ((Notification.bRequest == CDC_NOTIF_SerialState) && + (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))) + { + Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, + sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), + NULL); + + Pipe_ClearIN(); + + EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo); + } + else + { + Pipe_ClearIN(); + } + } + + Pipe_Freeze(); + + #if !defined(NO_CLASS_DRIVER_AUTOFLUSH) + CDC_Host_Flush(CDCInterfaceInfo); + #endif +} + +uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = CDC_REQ_SetLineEncoding, + .wValue = 0, + .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, + .wLength = sizeof(CDCInterfaceInfo->State.LineEncoding), + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding); +} + +uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = CDC_REQ_SetControlLineState, + .wValue = CDCInterfaceInfo->State.ControlLineStates.HostToDevice, + .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, + .wLength = 0, + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + return USB_Host_SendControlRequest(NULL); +} + +uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + const uint8_t Duration) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = CDC_REQ_SendBreak, + .wValue = Duration, + .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, + .wLength = 0, + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + return USB_Host_SendControlRequest(NULL); +} + +uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + const uint8_t* const Buffer, + const uint16_t Length) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); + + Pipe_Unfreeze(); + ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL); + Pipe_Freeze(); + + return ErrorCode; +} + +uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + const char* const String) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); + + Pipe_Unfreeze(); + ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL); + Pipe_Freeze(); + + return ErrorCode; +} + +uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + const uint8_t Data) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(CDCInterfaceInfo->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; +} + +uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return 0; + + Pipe_SelectPipe(CDCInterfaceInfo->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 CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return -1; + + int16_t ReceivedByte = -1; + + Pipe_SelectPipe(CDCInterfaceInfo->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 CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_DeviceDisconnected; + + uint8_t ErrorCode; + + Pipe_SelectPipe(CDCInterfaceInfo->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; +} + +#if defined(FDEV_SETUP_STREAM) +void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + FILE* const Stream) +{ + *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW); + fdev_set_udata(Stream, CDCInterfaceInfo); +} + +void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, + FILE* const Stream) +{ + *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW); + fdev_set_udata(Stream, CDCInterfaceInfo); +} + +static int CDC_Host_putchar(char c, + FILE* Stream) +{ + return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0; +} + +static int CDC_Host_getchar(FILE* Stream) +{ + int16_t ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); + + if (ReceivedByte < 0) + return _FDEV_EOF; + + return ReceivedByte; +} + +static int CDC_Host_getchar_Blocking(FILE* Stream) +{ + int16_t ReceivedByte; + + while ((ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))) < 0) + { + if (USB_HostState == HOST_STATE_Unattached) + return _FDEV_EOF; + + CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); + USB_USBTask(); + } + + return ReceivedByte; +} +#endif + +void CDC_Host_Event_Stub(void) +{ + +} + +#endif +