Squashed 'lib/lufa/' content from commit 385d40300

git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b

1 files changed, 362 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c b/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
new file mode 100644
index 000000000..867548c00
--- /dev/null
+++ b/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
@@ -0,0 +1,362 @@
+/*
+             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_DEVICE)
+
+#define  __INCLUDE_FROM_CDC_DRIVER
+#define  __INCLUDE_FROM_CDC_DEVICE_C
+#include "CDCClassDevice.h"
+
+void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if (!(Endpoint_IsSETUPReceived()))
+	  return;
+
+	if (USB_ControlRequest.wIndex != CDCInterfaceInfo->Config.ControlInterfaceNumber)
+	  return;
+
+	switch (USB_ControlRequest.bRequest)
+	{
+		case CDC_REQ_GetLineEncoding:
+			if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				Endpoint_ClearSETUP();
+
+				while (!(Endpoint_IsINReady()));
+
+				Endpoint_Write_32_LE(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
+				Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.CharFormat);
+				Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.ParityType);
+				Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.DataBits);
+
+				Endpoint_ClearIN();
+				Endpoint_ClearStatusStage();
+			}
+
+			break;
+		case CDC_REQ_SetLineEncoding:
+			if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				Endpoint_ClearSETUP();
+
+				while (!(Endpoint_IsOUTReceived()))
+				{
+					if (USB_DeviceState == DEVICE_STATE_Unattached)
+					  return;
+				}
+
+				CDCInterfaceInfo->State.LineEncoding.BaudRateBPS = Endpoint_Read_32_LE();
+				CDCInterfaceInfo->State.LineEncoding.CharFormat  = Endpoint_Read_8();
+				CDCInterfaceInfo->State.LineEncoding.ParityType  = Endpoint_Read_8();
+				CDCInterfaceInfo->State.LineEncoding.DataBits    = Endpoint_Read_8();
+
+				Endpoint_ClearOUT();
+				Endpoint_ClearStatusStage();
+
+				EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo);
+			}
+
+			break;
+		case CDC_REQ_SetControlLineState:
+			if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				Endpoint_ClearSETUP();
+				Endpoint_ClearStatusStage();
+
+				CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue;
+
+				EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo);
+			}
+
+			break;
+		case CDC_REQ_SendBreak:
+			if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				Endpoint_ClearSETUP();
+				Endpoint_ClearStatusStage();
+
+				EVENT_CDC_Device_BreakSent(CDCInterfaceInfo, (uint8_t)USB_ControlRequest.wValue);
+			}
+
+			break;
+	}
+}
+
+bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
+
+	CDCInterfaceInfo->Config.DataINEndpoint.Type       = EP_TYPE_BULK;
+	CDCInterfaceInfo->Config.DataOUTEndpoint.Type      = EP_TYPE_BULK;
+	CDCInterfaceInfo->Config.NotificationEndpoint.Type = EP_TYPE_INTERRUPT;
+
+	if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataINEndpoint, 1)))
+	  return false;
+
+	if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataOUTEndpoint, 1)))
+	  return false;
+
+	if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.NotificationEndpoint, 1)))
+	  return false;
+
+	return true;
+}
+
+void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return;
+
+	#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+	if (Endpoint_IsINReady())
+	  CDC_Device_Flush(CDCInterfaceInfo);
+	#endif
+}
+
+uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                              const char* const String)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+	return Endpoint_Write_Stream_LE(String, strlen(String), NULL);
+}
+
+uint8_t CDC_Device_SendString_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                              const char* const String)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+	return Endpoint_Write_PStream_LE(String, strlen_P(String), NULL);
+}
+
+uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                            const void* const Buffer,
+                            const uint16_t Length)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+	return Endpoint_Write_Stream_LE(Buffer, Length, NULL);
+}
+
+uint8_t CDC_Device_SendData_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                            const void* const Buffer,
+                            const uint16_t Length)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+	return Endpoint_Write_PStream_LE(Buffer, Length, NULL);
+}
+
+uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                            const uint8_t Data)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+	if (!(Endpoint_IsReadWriteAllowed()))
+	{
+		Endpoint_ClearIN();
+
+		uint8_t ErrorCode;
+
+		if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+		  return ErrorCode;
+	}
+
+	Endpoint_Write_8(Data);
+	return ENDPOINT_READYWAIT_NoError;
+}
+
+uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	uint8_t ErrorCode;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
+
+	if (!(Endpoint_BytesInEndpoint()))
+	  return ENDPOINT_READYWAIT_NoError;
+
+	bool BankFull = !(Endpoint_IsReadWriteAllowed());
+
+	Endpoint_ClearIN();
+
+	if (BankFull)
+	{
+		if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+		  return ErrorCode;
+
+		Endpoint_ClearIN();
+	}
+
+	return ENDPOINT_READYWAIT_NoError;
+}
+
+uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return 0;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
+
+	if (Endpoint_IsOUTReceived())
+	{
+		if (!(Endpoint_BytesInEndpoint()))
+		{
+			Endpoint_ClearOUT();
+			return 0;
+		}
+		else
+		{
+			return Endpoint_BytesInEndpoint();
+		}
+	}
+	else
+	{
+		return 0;
+	}
+}
+
+int16_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return -1;
+
+	int16_t ReceivedByte = -1;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
+
+	if (Endpoint_IsOUTReceived())
+	{
+		if (Endpoint_BytesInEndpoint())
+		  ReceivedByte = Endpoint_Read_8();
+
+		if (!(Endpoint_BytesInEndpoint()))
+		  Endpoint_ClearOUT();
+	}
+
+	return ReceivedByte;
+}
+
+void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.NotificationEndpoint.Address);
+
+	USB_Request_Header_t Notification = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = CDC_NOTIF_SerialState,
+			.wValue        = CPU_TO_LE16(0),
+			.wIndex        = CPU_TO_LE16(0),
+			.wLength       = CPU_TO_LE16(sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost)),
+		};
+
+	Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL);
+	Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
+	                         sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
+	                         NULL);
+	Endpoint_ClearIN();
+}
+
+#if defined(FDEV_SETUP_STREAM)
+void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                             FILE* const Stream)
+{
+	*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW);
+	fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                                     FILE* const Stream)
+{
+	*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar_Blocking, _FDEV_SETUP_RW);
+	fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+static int CDC_Device_putchar(char c,
+                              FILE* Stream)
+{
+	return CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
+}
+
+static int CDC_Device_getchar(FILE* Stream)
+{
+	int16_t ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+
+	if (ReceivedByte < 0)
+	  return _FDEV_EOF;
+
+	return ReceivedByte;
+}
+
+static int CDC_Device_getchar_Blocking(FILE* Stream)
+{
+	int16_t ReceivedByte;
+
+	while ((ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))) < 0)
+	{
+		if (USB_DeviceState == DEVICE_STATE_Unattached)
+		  return _FDEV_EOF;
+
+		CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+		USB_USBTask();
+	}
+
+	return ReceivedByte;
+}
+#endif
+
+void CDC_Device_Event_Stub(void)
+{
+
+}
+
+#endif
+