From 237ea87c4fcb4865863fc15e07e179323caa7881 Mon Sep 17 00:00:00 2001
From: Håvard Espeland <gus@ping.uio.no>
Date: Sat, 5 Feb 2011 19:26:39 +0100
Subject: Fork of LUFA CDC Bootloader Initial commit

---
 LUFA/Drivers/USB/LowLevel/Endpoint.c | 141 +++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 LUFA/Drivers/USB/LowLevel/Endpoint.c

(limited to 'LUFA/Drivers/USB/LowLevel/Endpoint.c')

diff --git a/LUFA/Drivers/USB/LowLevel/Endpoint.c b/LUFA/Drivers/USB/LowLevel/Endpoint.c
new file mode 100644
index 0000000..6fb842b
--- /dev/null
+++ b/LUFA/Drivers/USB/LowLevel/Endpoint.c
@@ -0,0 +1,141 @@
+/*
+             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_DEVICE)
+
+#include "Endpoint.h"
+
+#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)
+uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;
+#endif
+
+bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number,
+                                    const uint8_t UECFG0XData,
+                                    const uint8_t UECFG1XData)
+{
+	Endpoint_SelectEndpoint(Number);
+	Endpoint_EnableEndpoint();
+
+	UECFG1X = 0;
+	UECFG0X = UECFG0XData;
+	UECFG1X = UECFG1XData;
+
+	return Endpoint_IsConfigured();
+}
+
+void Endpoint_ClearEndpoints(void)
+{
+	UEINT = 0;
+
+	for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)
+	{
+		Endpoint_SelectEndpoint(EPNum);
+		UEIENX  = 0;
+		UEINTX  = 0;
+		UECFG1X = 0;
+		Endpoint_DisableEndpoint();
+	}
+}
+
+void Endpoint_ClearStatusStage(void)
+{
+	if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST)
+	{
+		while (!(Endpoint_IsOUTReceived()))
+		{
+			if (USB_DeviceState == DEVICE_STATE_Unattached)
+			  return;
+		}
+
+		Endpoint_ClearOUT();
+	}
+	else
+	{
+		while (!(Endpoint_IsINReady()))
+		{
+			if (USB_DeviceState == DEVICE_STATE_Unattached)
+			  return;
+		}
+
+		Endpoint_ClearIN();
+	}
+}
+
+#if !defined(CONTROL_ONLY_DEVICE)
+uint8_t Endpoint_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_Device_GetFrameNumber();
+
+	for (;;)
+	{
+		if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)
+		{
+			if (Endpoint_IsINReady())
+			  return ENDPOINT_READYWAIT_NoError;
+		}
+		else
+		{
+			if (Endpoint_IsOUTReceived())
+			  return ENDPOINT_READYWAIT_NoError;
+		}
+
+		uint8_t USB_DeviceState_LCL = USB_DeviceState;
+
+		if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
+		  return ENDPOINT_READYWAIT_DeviceDisconnected;
+		else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
+		  return ENDPOINT_READYWAIT_BusSuspended;
+		else if (Endpoint_IsStalled())
+		  return ENDPOINT_READYWAIT_EndpointStalled;
+
+		uint16_t CurrentFrameNumber = USB_Device_GetFrameNumber();
+
+		if (CurrentFrameNumber != PreviousFrameNumber)
+		{
+			PreviousFrameNumber = CurrentFrameNumber;
+
+			if (!(TimeoutMSRem--))
+			  return ENDPOINT_READYWAIT_Timeout;
+		}
+	}
+}
+#endif
+
+#endif
+
-- 
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