1 files changed, 140 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.c b/LUFA/Drivers/USB/LowLevel/Pipe.c
new file mode 100644
index 0000000..c414129
--- /dev/null
+++ b/LUFA/Drivers/USB/LowLevel/Pipe.c
@@ -0,0 +1,140 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2010  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 "../HighLevel/USBMode.h"
+
+#if defined(USB_CAN_BE_HOST)
+
+#include "Pipe.h"
+
+uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
+
+bool Pipe_ConfigurePipe(const uint8_t Number,
+                        const uint8_t Type,
+                        const uint8_t Token,
+                        const uint8_t EndpointNumber,
+                        const uint16_t Size,
+                        const uint8_t Banks)
+{
+	Pipe_SelectPipe(Number);
+	Pipe_EnablePipe();
+
+	UPCFG1X = 0;
+
+	UPCFG0X = ((Type << EPTYPE0) | Token | ((EndpointNumber & PIPE_EPNUM_MASK) << PEPNUM0));
+	UPCFG1X = ((1 << ALLOC) | Banks | Pipe_BytesToEPSizeMask(Size));
+
+	Pipe_SetInfiniteINRequests();
+
+	return Pipe_IsConfigured();
+}
+
+void Pipe_ClearPipes(void)
+{
+	UPINT = 0;
+
+	for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
+	{
+		Pipe_SelectPipe(PNum);
+		UPIENX  = 0;
+		UPINTX  = 0;
+		UPCFG1X = 0;
+		Pipe_DisablePipe();
+	}
+}
+
+bool Pipe_IsEndpointBound(const uint8_t EndpointAddress)
+{
+	uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();
+
+	for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
+	{
+		Pipe_SelectPipe(PNum);
+
+		if (!(Pipe_IsConfigured()))
+		  continue;
+
+		uint8_t PipeToken        = Pipe_GetPipeToken();
+		bool    PipeTokenCorrect = true;
+
+		if (PipeToken != PIPE_TOKEN_SETUP)
+		  PipeTokenCorrect = (PipeToken == ((EndpointAddress & PIPE_EPDIR_MASK) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT));
+
+		if (PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)))
+		  return true;
+	}
+
+	Pipe_SelectPipe(PrevPipeNumber);
+	return false;
+}
+
+uint8_t Pipe_WaitUntilReady(void)
+{
+	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
+	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
+	#else
+	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
+	#endif
+
+	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
+
+	for (;;)
+	{
+		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
+		{
+			if (Pipe_IsINReceived())
+			  return PIPE_READYWAIT_NoError;
+		}
+		else
+		{
+			if (Pipe_IsOUTReady())
+			  return PIPE_READYWAIT_NoError;
+		}
+
+		if (Pipe_IsStalled())
+		  return PIPE_READYWAIT_PipeStalled;
+		else if (USB_HostState == HOST_STATE_Unattached)
+		  return PIPE_READYWAIT_DeviceDisconnected;
+
+		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
+
+		if (CurrentFrameNumber != PreviousFrameNumber)
+		{
+			PreviousFrameNumber = CurrentFrameNumber;
+
+			if (!(TimeoutMSRem--))
+			  return PIPE_READYWAIT_Timeout;
+		}
+	}
+}
+
+#endif
+