X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/ecf7538430c01b95104682f0f7493e57b9168125..ed031c1df2f5b053b9cd9f48c63e66a42b7c049e:/Demos/RNDISEthernet/RNDISEthernet.c?ds=inline diff --git a/Demos/RNDISEthernet/RNDISEthernet.c b/Demos/RNDISEthernet/RNDISEthernet.c deleted file mode 100644 index 3f9bb187a..000000000 --- a/Demos/RNDISEthernet/RNDISEthernet.c +++ /dev/null @@ -1,357 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, 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. -*/ - -/** \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" - -/* Project Tags, for reading out using the ButtLoad project */ -BUTTLOADTAG(ProjName, "LUFA RNDIS App"); -BUTTLOADTAG(BuildTime, __TIME__); -BUTTLOADTAG(BuildDate, __DATE__); -BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING); - -/* Scheduler Task List */ -TASK_LIST -{ - { Task: USB_USBTask , TaskStatus: TASK_STOP }, - { Task: Ethernet_Task , TaskStatus: TASK_STOP }, - { Task: TCP_Task , TaskStatus: TASK_STOP }, - { Task: RNDIS_Task , TaskStatus: TASK_STOP }, -}; - -/** Main program entry point. This routine configures the hardware required by the application, then - * starts the scheduler to run the USB management task. - */ -int main(void) -{ - /* Disable watchdog if enabled by bootloader/fuses */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Disable clock division */ - clock_prescale_set(clock_div_1); - - /* Hardware Initialization */ - LEDs_Init(); - SerialStream_Init(9600, false); - - /* Webserver Initialization */ - TCP_Init(); - Webserver_Init(); - - printf_P(PSTR("\r\n\r\n****** RNDIS Demo running. ******\r\n")); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); - - /* Initialize Scheduler so that it can be used */ - Scheduler_Init(); - - /* Initialize USB Subsystem */ - USB_Init(); - - /* Scheduling - routine never returns, so put this last in the main function */ - Scheduler_Start(); -} - -/** 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. - */ -EVENT_HANDLER(USB_Connect) -{ - /* Start USB management task */ - Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); - - /* Indicate USB enumerating */ - UpdateStatus(Status_USBEnumerating); -} - -/** 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 relevent tasks. - */ -EVENT_HANDLER(USB_Disconnect) -{ - /* Stop running TCP/IP and USB management tasks */ - Scheduler_SetTaskMode(RNDIS_Task, TASK_STOP); - Scheduler_SetTaskMode(Ethernet_Task, TASK_STOP); - Scheduler_SetTaskMode(TCP_Task, TASK_STOP); - Scheduler_SetTaskMode(USB_USBTask, TASK_STOP); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); -} - -/** 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 relevent tasks. - */ -EVENT_HANDLER(USB_ConfigurationChanged) -{ - /* Setup CDC Notification, Rx and Tx Endpoints */ - Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, - ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - /* Indicate USB connected and ready */ - UpdateStatus(Status_USBReady); - - /* Start TCP/IP tasks */ - Scheduler_SetTaskMode(RNDIS_Task, TASK_RUN); - Scheduler_SetTaskMode(Ethernet_Task, TASK_RUN); - Scheduler_SetTaskMode(TCP_Task, TASK_RUN); -} - -/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific - * control requests that are not handled internally by the USB library (including the RNDIS control commands, - * which set up the USB RNDIS network adapter), so that they can be handled appropriately for the application. - */ -EVENT_HANDLER(USB_UnhandledControlPacket) -{ - /* Discard the unused wValue parameter */ - Endpoint_Discard_Word(); - - /* Discard the unused wIndex parameter */ - Endpoint_Discard_Word(); - - /* Read in the wLength parameter */ - uint16_t wLength = Endpoint_Read_Word_LE(); - - /* Process RNDIS class commands */ - switch (bRequest) - { - case SEND_ENCAPSULATED_COMMAND: - if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) - { - /* Clear the SETUP packet, ready for data transfer */ - Endpoint_ClearSetupReceived(); - - /* Read in the RNDIS message into the message buffer */ - Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, wLength); - - /* Finalize the stream transfer to clear the last packet from the host */ - Endpoint_ClearSetupIN(); - - /* Process the RNDIS message */ - ProcessRNDISControlMessage(); - } - - break; - case GET_ENCAPSULATED_RESPONSE: - if (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; - } - - /* Check if less than the requested number of bytes to transfer */ - if (MessageHeader->MessageLength < wLength) - wLength = MessageHeader->MessageLength; - - /* Clear the SETUP packet, ready for data transfer */ - Endpoint_ClearSetupReceived(); - - /* Write the message response data to the endpoint */ - Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, wLength); - - /* Finalize the stream transfer to send the last packet or clear the host abort */ - Endpoint_ClearSetupOUT(); - - /* Reset the message header once again after transmission */ - MessageHeader->MessageLength = 0; - } - - break; - } -} - -/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to - * log to a serial port, or anything else that is suitable for status updates. - * - * \param CurrentStatus Current status of the system, from the RNDISEthernet_StatusCodes_t enum - */ -void UpdateStatus(uint8_t CurrentStatus) -{ - uint8_t LEDMask = LEDS_NO_LEDS; - - /* Set the LED mask to the appropriate LED mask based on the given status code */ - switch (CurrentStatus) - { - case Status_USBNotReady: - LEDMask = (LEDS_LED1); - break; - case Status_USBEnumerating: - LEDMask = (LEDS_LED1 | LEDS_LED2); - break; - case Status_USBReady: - LEDMask = (LEDS_LED2 | LEDS_LED4); - break; - case Status_ProcessingEthernetFrame: - LEDMask = (LEDS_LED2 | LEDS_LED3); - break; - } - - /* Set the board LEDs to the new LED mask */ - LEDs_SetAllLEDs(LEDMask); -} - -/** Task to manage the sending and receiving of encapsulated RNDIS data and notifications. This removes the RNDIS - * wrapper from recieved 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. - */ -TASK(RNDIS_Task) -{ - /* Select the notification endpoint */ - Endpoint_SelectEndpoint(CDC_NOTIFICATION_EPNUM); - - /* Check if a message response is ready for the host */ - if (Endpoint_ReadWriteAllowed() && ResponseReady) - { - USB_Notification_t Notification = (USB_Notification_t) - { - bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), - bNotification: NOTIF_RESPONSE_AVAILABLE, - wValue: 0, - wIndex: 0, - wLength: 0, - }; - - /* Indicate that a message response is ready for the host */ - Endpoint_Write_Stream_LE(&Notification, sizeof(Notification)); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - - /* 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_MSG_t RNDISPacketHeader; - - /* Select the data OUT endpoint */ - Endpoint_SelectEndpoint(CDC_RX_EPNUM); - - /* Check if the data OUT endpoint contains data, and that the IN buffer is empty */ - if (Endpoint_ReadWriteAllowed() && !(FrameIN.FrameInBuffer)) - { - /* Read in the packet message header */ - Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_PACKET_MSG_t)); - - /* Stall the request if the data is too large */ - if (RNDISPacketHeader.MessageLength > ETHERNET_FRAME_SIZE_MAX) - { - Endpoint_StallTransaction(); - return; - } - - /* Read in the Ethernet frame into the buffer */ - Endpoint_Read_Stream_LE(FrameIN.FrameData, RNDISPacketHeader.DataLength); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - - /* Store the size of the Ethernet frame */ - FrameIN.FrameLength = RNDISPacketHeader.DataLength; - - /* Indicate Ethernet IN buffer full */ - FrameIN.FrameInBuffer = true; - } - - /* Select the data IN endpoint */ - Endpoint_SelectEndpoint(CDC_TX_EPNUM); - - /* Check if the data IN endpoint is ready for more data, and that the IN buffer is full */ - if (Endpoint_ReadWriteAllowed() && FrameOUT.FrameInBuffer) - { - /* Clear the packet header with all 0s so that the relevant fields can be filled */ - memset(&RNDISPacketHeader, 0, sizeof(RNDIS_PACKET_MSG_t)); - - /* Construct the required packet header fields in the buffer */ - RNDISPacketHeader.MessageType = REMOTE_NDIS_PACKET_MSG; - RNDISPacketHeader.MessageLength = (sizeof(RNDIS_PACKET_MSG_t) + FrameOUT.FrameLength); - RNDISPacketHeader.DataOffset = (sizeof(RNDIS_PACKET_MSG_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_MSG_t)); - - /* Send the Ethernet frame data to the host */ - Endpoint_Write_Stream_LE(FrameOUT.FrameData, RNDISPacketHeader.DataLength); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - - /* Indicate Ethernet OUT buffer no longer full */ - FrameOUT.FrameInBuffer = false; - } - } -} - -/** 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. - */ -TASK(Ethernet_Task) -{ - /* 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. */ - - /* Check if a frame has been written to the IN frame buffer */ - if (FrameIN.FrameInBuffer) - { - /* Indicate packet processing started */ - UpdateStatus(Status_ProcessingEthernetFrame); - - /* Process the ethernet frame - replace this with your own Ethernet handler code as desired */ - Ethernet_ProcessPacket(); - - /* Indicate packet processing complete */ - UpdateStatus(Status_USBReady); - } -}