diff options
Diffstat (limited to 'Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c')
-rw-r--r-- | Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c | 604 |
1 files changed, 302 insertions, 302 deletions
diff --git a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c index cb06bc333..d11829dd6 100644 --- a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c +++ b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c @@ -1,302 +1,302 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- 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.
-*/
-
-/** \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);
- sei();
-
- for (;;)
- {
- Ethernet_Task();
- TCP_Task();
- RNDIS_Task();
- USB_USBTask();
- }
-}
-
-/** Configures the board hardware and chip peripherals for the demo's functionality. */
-void SetupHardware(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);
- USB_Init();
-}
-
-/** 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)
-{
- /* Indicate USB connected and ready */
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
- /* Setup CDC Notification, Rx and Tx Endpoints */
- if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
- ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- }
-
- if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
- ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- }
-
- if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- }
-}
-
-/** Event handler for the USB_UnhandledControlRequest 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.
- */
-void EVENT_USB_Device_UnhandledControlRequest(void)
-{
- /* Process RNDIS class commands */
- switch (USB_ControlRequest.bRequest)
- {
- case REQ_SendEncapsulatedCommand:
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
- {
- /* Clear the SETUP packet, ready for data transfer */
- Endpoint_ClearSETUP();
-
- /* Read in the RNDIS message into the message buffer */
- Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, USB_ControlRequest.wLength);
-
- /* Finalize the stream transfer to clear the last packet from the host */
- Endpoint_ClearIN();
-
- /* Process the RNDIS message */
- ProcessRNDISControlMessage();
- }
-
- break;
- case REQ_GetEncapsulatedResponse:
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
- {
- /* Clear the SETUP packet, ready for data transfer */
- Endpoint_ClearSETUP();
-
- /* 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;
- }
-
- /* Write the message response data to the endpoint */
- Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, MessageHeader->MessageLength);
-
- /* Finalize the stream transfer to send the last packet or clear the host abort */
- 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_EPNUM);
-
- /* Check if a message response is ready for the host */
- if (Endpoint_IsINReady() && 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_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_EPNUM);
-
- /* Check if the data OUT endpoint contains data, and that the IN buffer is empty */
- if (Endpoint_IsOUTReceived() && !(FrameIN.FrameInBuffer))
- {
- /* Read in the packet message header */
- Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t));
-
- /* 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);
-
- /* Finalize the stream transfer to send the last packet */
- Endpoint_ClearOUT();
-
- /* 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_IsINReady() && FrameOUT.FrameInBuffer)
- {
- /* 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));
-
- /* 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_ClearIN();
-
- /* 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.
- */
-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.FrameInBuffer)
- {
- /* 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);
- }
-}
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + 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. +*/ + +/** \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); + sei(); + + for (;;) + { + Ethernet_Task(); + TCP_Task(); + RNDIS_Task(); + USB_USBTask(); + } +} + +/** Configures the board hardware and chip peripherals for the demo's functionality. */ +void SetupHardware(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); + USB_Init(); +} + +/** 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) +{ + /* Indicate USB connected and ready */ + LEDs_SetAllLEDs(LEDMASK_USB_READY); + + /* Setup CDC Notification, Rx and Tx Endpoints */ + if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + + if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + + if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, + ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } +} + +/** Event handler for the USB_UnhandledControlRequest 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. + */ +void EVENT_USB_Device_UnhandledControlRequest(void) +{ + /* Process RNDIS class commands */ + switch (USB_ControlRequest.bRequest) + { + case REQ_SendEncapsulatedCommand: + if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) + { + /* Clear the SETUP packet, ready for data transfer */ + Endpoint_ClearSETUP(); + + /* Read in the RNDIS message into the message buffer */ + Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, USB_ControlRequest.wLength); + + /* Finalize the stream transfer to clear the last packet from the host */ + Endpoint_ClearIN(); + + /* Process the RNDIS message */ + ProcessRNDISControlMessage(); + } + + break; + case REQ_GetEncapsulatedResponse: + if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) + { + /* Clear the SETUP packet, ready for data transfer */ + Endpoint_ClearSETUP(); + + /* 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; + } + + /* Write the message response data to the endpoint */ + Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, MessageHeader->MessageLength); + + /* Finalize the stream transfer to send the last packet or clear the host abort */ + 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_EPNUM); + + /* Check if a message response is ready for the host */ + if (Endpoint_IsINReady() && 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_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_EPNUM); + + /* Check if the data OUT endpoint contains data, and that the IN buffer is empty */ + if (Endpoint_IsOUTReceived() && !(FrameIN.FrameInBuffer)) + { + /* Read in the packet message header */ + Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t)); + + /* 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); + + /* Finalize the stream transfer to send the last packet */ + Endpoint_ClearOUT(); + + /* 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_IsINReady() && FrameOUT.FrameInBuffer) + { + /* 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)); + + /* 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_ClearIN(); + + /* 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. + */ +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.FrameInBuffer) + { + /* 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); + } +} |