-/*
- 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_DIR_MASK) == ENDPOINT_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
-
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