1 files changed, 512 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Drivers/USB/Class/Host/CDCClassHost.c b/lib/lufa/LUFA/Drivers/USB/Class/Host/CDCClassHost.c
new file mode 100644
index 0000000000..af9ed96e24
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/USB/Class/Host/CDCClassHost.c
@@ -0,0 +1,512 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  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 disclaims 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 "CDCClassHost.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;
+		}
+	}
+
+	CDCInterfaceInfo->Config.DataINPipe.Size  = le16_to_cpu(DataINEndpoint->EndpointSize);
+	CDCInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
+	CDCInterfaceInfo->Config.DataINPipe.Type  = EP_TYPE_BULK;
+
+	CDCInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
+	CDCInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
+	CDCInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
+
+	CDCInterfaceInfo->Config.NotificationPipe.Size = le16_to_cpu(NotificationEndpoint->EndpointSize);
+	CDCInterfaceInfo->Config.NotificationPipe.EndpointAddress = NotificationEndpoint->EndpointAddress;
+	CDCInterfaceInfo->Config.NotificationPipe.Type = EP_TYPE_INTERRUPT;
+
+	if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.DataINPipe, 1)))
+	  return CDC_ENUMERROR_PipeConfigurationFailed;
+
+	if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.DataOUTPipe, 1)))
+	  return CDC_ENUMERROR_PipeConfigurationFailed;
+
+	if (!(Pipe_ConfigurePipeTable(&CDCInterfaceInfo->Config.NotificationPipe, 1)))
+	  return CDC_ENUMERROR_PipeConfigurationFailed;
+
+	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.NotificationPipe.Address);
+	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 void* 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.DataOUTPipe.Address);
+
+	Pipe_Unfreeze();
+	ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
+	Pipe_Freeze();
+
+	return ErrorCode;
+}
+
+uint8_t CDC_Host_SendData_P(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+                          const void* 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.DataOUTPipe.Address);
+
+	Pipe_Unfreeze();
+	ErrorCode = Pipe_Write_PStream_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.DataOUTPipe.Address);
+
+	Pipe_Unfreeze();
+	ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
+	Pipe_Freeze();
+
+	return ErrorCode;
+}
+
+uint8_t CDC_Host_SendString_P(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.DataOUTPipe.Address);
+
+	Pipe_Unfreeze();
+	ErrorCode = Pipe_Write_PStream_LE(String, strlen_P(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.DataOUTPipe.Address);
+	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.DataINPipe.Address);
+	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.DataINPipe.Address);
+	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.DataOUTPipe.Address);
+	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
+