+++ /dev/null
-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting\r
- documentation, and that the name of the author not be used in\r
- advertising or publicity pertaining to distribution of the\r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the RNDISEthernet demo. This file contains the main tasks of the demo and\r
- * is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "RNDISEthernet.h"\r
-\r
-/* Project Tags, for reading out using the ButtLoad project */\r
-BUTTLOADTAG(ProjName, "LUFA RNDIS App");\r
-BUTTLOADTAG(BuildTime, __TIME__);\r
-BUTTLOADTAG(BuildDate, __DATE__);\r
-BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING);\r
-\r
-/* Scheduler Task List */\r
-TASK_LIST\r
-{\r
- { Task: USB_USBTask , TaskStatus: TASK_STOP },\r
- { Task: Ethernet_Task , TaskStatus: TASK_STOP },\r
- { Task: TCP_Task , TaskStatus: TASK_STOP },\r
- { Task: RNDIS_Task , TaskStatus: TASK_STOP },\r
-};\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * starts the scheduler to run the USB management task.\r
- */\r
-int main(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- LEDs_Init();\r
- SerialStream_Init(9600, false);\r
- \r
- /* Webserver Initialization */\r
- TCP_Init();\r
- Webserver_Init();\r
-\r
- printf_P(PSTR("\r\n\r\n****** RNDIS Demo running. ******\r\n"));\r
-\r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
- \r
- /* Initialize Scheduler so that it can be used */\r
- Scheduler_Init();\r
-\r
- /* Initialize USB Subsystem */\r
- USB_Init();\r
-\r
- /* Scheduling - routine never returns, so put this last in the main function */\r
- Scheduler_Start();\r
-}\r
-\r
-/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and\r
- * starts the library USB task to begin the enumeration and USB management process.\r
- */\r
-EVENT_HANDLER(USB_Connect)\r
-{\r
- /* Start USB management task */\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);\r
-\r
- /* Indicate USB enumerating */\r
- UpdateStatus(Status_USBEnumerating);\r
-}\r
-\r
-/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via\r
- * the status LEDs and stops all the relevent tasks.\r
- */\r
-EVENT_HANDLER(USB_Disconnect)\r
-{\r
- /* Stop running TCP/IP and USB management tasks */\r
- Scheduler_SetTaskMode(RNDIS_Task, TASK_STOP);\r
- Scheduler_SetTaskMode(Ethernet_Task, TASK_STOP);\r
- Scheduler_SetTaskMode(TCP_Task, TASK_STOP);\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);\r
-\r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
-}\r
-\r
-/** Event handler for the USB_ConfigurationChanged event. This is fired when the host sets the current configuration\r
- * of the USB device after enumeration, and configures the RNDIS device endpoints and starts the relevent tasks.\r
- */\r
-EVENT_HANDLER(USB_ConfigurationChanged)\r
-{\r
- /* Setup CDC Notification, Rx and Tx Endpoints */\r
- Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,\r
- ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- /* Indicate USB connected and ready */\r
- UpdateStatus(Status_USBReady);\r
-\r
- /* Start TCP/IP tasks */\r
- Scheduler_SetTaskMode(RNDIS_Task, TASK_RUN);\r
- Scheduler_SetTaskMode(Ethernet_Task, TASK_RUN);\r
- Scheduler_SetTaskMode(TCP_Task, TASK_RUN);\r
-}\r
-\r
-/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific\r
- * control requests that are not handled internally by the USB library (including the RNDIS control commands,\r
- * which set up the USB RNDIS network adapter), so that they can be handled appropriately for the application.\r
- */\r
-EVENT_HANDLER(USB_UnhandledControlPacket)\r
-{\r
- /* Discard the unused wValue parameter */\r
- Endpoint_Discard_Word();\r
-\r
- /* Discard the unused wIndex parameter */\r
- Endpoint_Discard_Word();\r
-\r
- /* Read in the wLength parameter */\r
- uint16_t wLength = Endpoint_Read_Word_LE();\r
-\r
- /* Process RNDIS class commands */\r
- switch (bRequest)\r
- {\r
- case SEND_ENCAPSULATED_COMMAND:\r
- if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- /* Clear the SETUP packet, ready for data transfer */\r
- Endpoint_ClearSetupReceived();\r
- \r
- /* Read in the RNDIS message into the message buffer */\r
- Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, wLength);\r
-\r
- /* Finalize the stream transfer to clear the last packet from the host */\r
- Endpoint_ClearSetupIN();\r
-\r
- /* Process the RNDIS message */\r
- ProcessRNDISControlMessage();\r
- }\r
- \r
- break;\r
- case GET_ENCAPSULATED_RESPONSE:\r
- if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- /* Check if a response to the last message is ready */\r
- if (!(MessageHeader->MessageLength))\r
- {\r
- /* Set the response to a single 0x00 byte to indicate that no response is ready */\r
- RNDISMessageBuffer[0] = 0;\r
- MessageHeader->MessageLength = 1;\r
- }\r
-\r
- /* Check if less than the requested number of bytes to transfer */\r
- if (MessageHeader->MessageLength < wLength)\r
- wLength = MessageHeader->MessageLength;\r
-\r
- /* Clear the SETUP packet, ready for data transfer */\r
- Endpoint_ClearSetupReceived();\r
- \r
- /* Write the message response data to the endpoint */\r
- Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, wLength);\r
- \r
- /* Finalize the stream transfer to send the last packet or clear the host abort */\r
- Endpoint_ClearSetupOUT();\r
-\r
- /* Reset the message header once again after transmission */\r
- MessageHeader->MessageLength = 0;\r
- }\r
- \r
- break;\r
- }\r
-}\r
-\r
-/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to\r
- * log to a serial port, or anything else that is suitable for status updates.\r
- *\r
- * \param CurrentStatus Current status of the system, from the RNDISEthernet_StatusCodes_t enum\r
- */\r
-void UpdateStatus(uint8_t CurrentStatus)\r
-{\r
- uint8_t LEDMask = LEDS_NO_LEDS;\r
- \r
- /* Set the LED mask to the appropriate LED mask based on the given status code */\r
- switch (CurrentStatus)\r
- {\r
- case Status_USBNotReady:\r
- LEDMask = (LEDS_LED1);\r
- break;\r
- case Status_USBEnumerating:\r
- LEDMask = (LEDS_LED1 | LEDS_LED2);\r
- break;\r
- case Status_USBReady:\r
- LEDMask = (LEDS_LED2 | LEDS_LED4);\r
- break;\r
- case Status_ProcessingEthernetFrame:\r
- LEDMask = (LEDS_LED2 | LEDS_LED3);\r
- break; \r
- }\r
- \r
- /* Set the board LEDs to the new LED mask */\r
- LEDs_SetAllLEDs(LEDMask);\r
-}\r
-\r
-/** Task to manage the sending and receiving of encapsulated RNDIS data and notifications. This removes the RNDIS\r
- * wrapper from recieved Ethernet frames and places them in the FrameIN global buffer, or adds the RNDIS wrapper\r
- * to a frame in the FrameOUT global before sending the buffer contents to the host.\r
- */\r
-TASK(RNDIS_Task)\r
-{\r
- /* Select the notification endpoint */\r
- Endpoint_SelectEndpoint(CDC_NOTIFICATION_EPNUM);\r
-\r
- /* Check if a message response is ready for the host */\r
- if (Endpoint_ReadWriteAllowed() && ResponseReady)\r
- {\r
- USB_Notification_t Notification = (USB_Notification_t)\r
- {\r
- bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),\r
- bNotification: NOTIF_RESPONSE_AVAILABLE,\r
- wValue: 0,\r
- wIndex: 0,\r
- wLength: 0,\r
- };\r
- \r
- /* Indicate that a message response is ready for the host */\r
- Endpoint_Write_Stream_LE(&Notification, sizeof(Notification));\r
-\r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearCurrentBank();\r
-\r
- /* Indicate a response is no longer ready */\r
- ResponseReady = false;\r
- }\r
- \r
- /* Don't process the data endpoints until the system is in the data initialized state, and the buffer is free */\r
- if ((CurrRNDISState == RNDIS_Data_Initialized) && !(MessageHeader->MessageLength))\r
- {\r
- /* Create a new packet header for reading/writing */\r
- RNDIS_PACKET_MSG_t RNDISPacketHeader;\r
-\r
- /* Select the data OUT endpoint */\r
- Endpoint_SelectEndpoint(CDC_RX_EPNUM);\r
- \r
- /* Check if the data OUT endpoint contains data, and that the IN buffer is empty */\r
- if (Endpoint_ReadWriteAllowed() && !(FrameIN.FrameInBuffer))\r
- {\r
- /* Read in the packet message header */\r
- Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_PACKET_MSG_t));\r
-\r
- /* Stall the request if the data is too large */\r
- if (RNDISPacketHeader.MessageLength > ETHERNET_FRAME_SIZE_MAX)\r
- {\r
- Endpoint_StallTransaction();\r
- return;\r
- }\r
- \r
- /* Read in the Ethernet frame into the buffer */\r
- Endpoint_Read_Stream_LE(FrameIN.FrameData, RNDISPacketHeader.DataLength);\r
-\r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearCurrentBank();\r
- \r
- /* Store the size of the Ethernet frame */\r
- FrameIN.FrameLength = RNDISPacketHeader.DataLength;\r
-\r
- /* Indicate Ethernet IN buffer full */\r
- FrameIN.FrameInBuffer = true;\r
- }\r
- \r
- /* Select the data IN endpoint */\r
- Endpoint_SelectEndpoint(CDC_TX_EPNUM);\r
- \r
- /* Check if the data IN endpoint is ready for more data, and that the IN buffer is full */\r
- if (Endpoint_ReadWriteAllowed() && FrameOUT.FrameInBuffer)\r
- {\r
- /* Clear the packet header with all 0s so that the relevant fields can be filled */\r
- memset(&RNDISPacketHeader, 0, sizeof(RNDIS_PACKET_MSG_t));\r
-\r
- /* Construct the required packet header fields in the buffer */\r
- RNDISPacketHeader.MessageType = REMOTE_NDIS_PACKET_MSG;\r
- RNDISPacketHeader.MessageLength = (sizeof(RNDIS_PACKET_MSG_t) + FrameOUT.FrameLength);\r
- RNDISPacketHeader.DataOffset = (sizeof(RNDIS_PACKET_MSG_t) - sizeof(RNDIS_Message_Header_t));\r
- RNDISPacketHeader.DataLength = FrameOUT.FrameLength;\r
-\r
- /* Send the packet header to the host */\r
- Endpoint_Write_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_PACKET_MSG_t));\r
-\r
- /* Send the Ethernet frame data to the host */\r
- Endpoint_Write_Stream_LE(FrameOUT.FrameData, RNDISPacketHeader.DataLength);\r
- \r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearCurrentBank();\r
- \r
- /* Indicate Ethernet OUT buffer no longer full */\r
- FrameOUT.FrameInBuffer = false;\r
- }\r
- }\r
-}\r
-\r
-/** Ethernet frame processing task. This task checks to see if a frame has been received, and if so hands off the processing\r
- * of the frame to the Ethernet processing routines.\r
- */\r
-TASK(Ethernet_Task)\r
-{\r
- /* Task for Ethernet processing. Incoming ethernet frames are loaded into the FrameIN structure, and\r
- outgoing frames should be loaded into the FrameOUT structure. Both structures can only hold a single\r
- Ethernet frame at a time, so the FrameInBuffer bool is used to indicate when the buffers contain data. */\r
-\r
- /* Check if a frame has been written to the IN frame buffer */\r
- if (FrameIN.FrameInBuffer)\r
- {\r
- /* Indicate packet processing started */\r
- UpdateStatus(Status_ProcessingEthernetFrame);\r
-\r
- /* Process the ethernet frame - replace this with your own Ethernet handler code as desired */\r
- Ethernet_ProcessPacket();\r
-\r
- /* Indicate packet processing complete */\r
- UpdateStatus(Status_USBReady);\r
- }\r
-}\r
projects / pub / lufa.git / blobdiff