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diff --git a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
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+/*
+ 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.
+*/
+
+/** \file
+ *
+ * Main source file for the RNDISEthernet demo. This file contains the main tasks of the demo and
+ * is responsible for the initial application hardware configuration.
+ */
+
+#include "RNDISEthernet.h"
+
+/** Main program entry point. This routine configures the hardware required by the application, then
+ * enters a loop to run the application tasks in sequence.
+ */
+int main(void)
+{
+ SetupHardware();
+
+ /* Webserver Initialization */
+ TCP_Init();
+ Webserver_Init();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ GlobalInterruptEnable();
+
+ for (;;)
+ {
+ Ethernet_Task();
+ TCP_Task();
+ RNDIS_Task();
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+#elif (ARCH == ARCH_XMEGA)
+ /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
+ XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+ XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+
+ /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
+ XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+ XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+
+ PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
+#endif
+
+ /* Hardware Initialization */
+ LEDs_Init();
+ Serial_Init(9600, false);
+ USB_Init();
+
+ /* Create a stdio stream for the serial port for stdin and stdout */
+ Serial_CreateStream(NULL);
+}
+
+/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
+ * starts the library USB task to begin the enumeration and USB management process.
+ */
+void EVENT_USB_Device_Connect(void)
+{
+ /* Indicate USB enumerating */
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
+ * the status LEDs and stops all the relevant tasks.
+ */
+void EVENT_USB_Device_Disconnect(void)
+{
+ /* Indicate USB not ready */
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the USB_ConfigurationChanged event. This is fired when the host sets the current configuration
+ * of the USB device after enumeration, and configures the RNDIS device endpoints and starts the relevant tasks.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ /* Setup RNDIS Data Endpoints */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_TX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_RX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPADDR, EP_TYPE_INTERRUPT, CDC_NOTIFICATION_EPSIZE, 1);
+
+ /* Indicate endpoint configuration success or failure */
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
+ * the device from the USB host before passing along unhandled control requests to the library for processing
+ * internally.
+ */
+void EVENT_USB_Device_ControlRequest(void)
+{
+ /* Process RNDIS class commands */
+ switch (USB_ControlRequest.bRequest)
+ {
+ case RNDIS_REQ_SendEncapsulatedCommand:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+
+ /* Read in the RNDIS message into the message buffer */
+ Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, USB_ControlRequest.wLength);
+ Endpoint_ClearIN();
+
+ /* Process the RNDIS message */
+ ProcessRNDISControlMessage();
+ }
+
+ break;
+ case RNDIS_REQ_GetEncapsulatedResponse:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ /* Check if a response to the last message is ready */
+ if (!(MessageHeader->MessageLength))
+ {
+ /* Set the response to a single 0x00 byte to indicate that no response is ready */
+ RNDISMessageBuffer[0] = 0;
+ MessageHeader->MessageLength = 1;
+ }
+
+ Endpoint_ClearSETUP();
+
+ /* Write the message response data to the endpoint */
+ Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, MessageHeader->MessageLength);
+ Endpoint_ClearOUT();
+
+ /* Reset the message header once again after transmission */
+ MessageHeader->MessageLength = 0;
+ }
+
+ break;
+ }
+}
+
+/** Task to manage the sending and receiving of encapsulated RNDIS data and notifications. This removes the RNDIS
+ * wrapper from received Ethernet frames and places them in the FrameIN global buffer, or adds the RNDIS wrapper
+ * to a frame in the FrameOUT global before sending the buffer contents to the host.
+ */
+void RNDIS_Task(void)
+{
+ /* Select the notification endpoint */
+ Endpoint_SelectEndpoint(CDC_NOTIFICATION_EPADDR);
+
+ /* Check if a message response is ready for the host */
+ if (Endpoint_IsINReady() && ResponseReady)
+ {
+ USB_Request_Header_t Notification = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = RNDIS_NOTIF_ResponseAvailable,
+ .wValue = 0,
+ .wIndex = 0,
+ .wLength = 0,
+ };
+
+ /* Indicate that a message response is ready for the host */
+ Endpoint_Write_Stream_LE(&Notification, sizeof(Notification), NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+
+ /* Indicate a response is no longer ready */
+ ResponseReady = false;
+ }
+
+ /* Don't process the data endpoints until the system is in the data initialized state, and the buffer is free */
+ if ((CurrRNDISState == RNDIS_Data_Initialized) && !(MessageHeader->MessageLength))
+ {
+ /* Create a new packet header for reading/writing */
+ RNDIS_Packet_Message_t RNDISPacketHeader;
+
+ /* Select the data OUT endpoint */
+ Endpoint_SelectEndpoint(CDC_RX_EPADDR);
+
+ /* Check if the data OUT endpoint contains data, and that the IN buffer is empty */
+ if (Endpoint_IsOUTReceived() && !(FrameIN.FrameLength))
+ {
+ /* Read in the packet message header */
+ Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NULL);
+
+ /* Stall the request if the data is too large */
+ if (RNDISPacketHeader.DataLength > ETHERNET_FRAME_SIZE_MAX)
+ {
+ Endpoint_StallTransaction();
+ return;
+ }
+
+ /* Read in the Ethernet frame into the buffer */
+ Endpoint_Read_Stream_LE(FrameIN.FrameData, RNDISPacketHeader.DataLength, NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearOUT();
+
+ /* Store the size of the Ethernet frame */
+ FrameIN.FrameLength = RNDISPacketHeader.DataLength;
+ }
+
+ /* Select the data IN endpoint */
+ Endpoint_SelectEndpoint(CDC_TX_EPADDR);
+
+ /* Check if the data IN endpoint is ready for more data, and that the IN buffer is full */
+ if (Endpoint_IsINReady() && FrameOUT.FrameLength)
+ {
+ /* Clear the packet header with all 0s so that the relevant fields can be filled */
+ memset(&RNDISPacketHeader, 0, sizeof(RNDIS_Packet_Message_t));
+
+ /* Construct the required packet header fields in the buffer */
+ RNDISPacketHeader.MessageType = REMOTE_NDIS_PACKET_MSG;
+ RNDISPacketHeader.MessageLength = (sizeof(RNDIS_Packet_Message_t) + FrameOUT.FrameLength);
+ RNDISPacketHeader.DataOffset = (sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t));
+ RNDISPacketHeader.DataLength = FrameOUT.FrameLength;
+
+ /* Send the packet header to the host */
+ Endpoint_Write_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NULL);
+
+ /* Send the Ethernet frame data to the host */
+ Endpoint_Write_Stream_LE(FrameOUT.FrameData, RNDISPacketHeader.DataLength, NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+
+ /* Indicate Ethernet OUT buffer no longer full */
+ FrameOUT.FrameLength = 0;
+ }
+ }
+}
+
+/** Ethernet frame processing task. This task checks to see if a frame has been received, and if so hands off the processing
+ * of the frame to the Ethernet processing routines.
+ */
+void Ethernet_Task(void)
+{
+ /* Task for Ethernet processing. Incoming ethernet frames are loaded into the FrameIN structure, and
+ outgoing frames should be loaded into the FrameOUT structure. Both structures can only hold a single
+ Ethernet frame at a time, so the FrameInBuffer bool is used to indicate when the buffers contain data. */
+
+ /* Device must be connected and configured for the task to run */
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ /* Check if a frame has been written to the IN frame buffer */
+ if (FrameIN.FrameLength)
+ {
+ /* Indicate packet processing started */
+ LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
+
+ /* Process the ethernet frame - replace this with your own Ethernet handler code as desired */
+ Ethernet_ProcessPacket();
+
+ /* Indicate packet processing complete */
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);
+ }
+}
+