Move new Class Driver powered demos to a new ClassDriver subdirectory, re-add old low level demos to a LowLevel subdirectory.
This commit is contained in:
Dean Camera
parent
6a7c298c0f
commit
b9b03aadb2
273 changed files with 46078 additions and 0 deletions
338
Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
Normal file
338
Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
Normal file
|
|
@ -0,0 +1,338 @@
|
|||
/*
|
||||
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"
|
||||
|
||||
/* 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.
|
||||
*/
|
||||
void EVENT_USB_Connect(void)
|
||||
{
|
||||
/* 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 relevant tasks.
|
||||
*/
|
||||
void EVENT_USB_Disconnect(void)
|
||||
{
|
||||
/* 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 relevant tasks.
|
||||
*/
|
||||
void EVENT_USB_ConfigurationChanged(void)
|
||||
{
|
||||
/* Setup CDC Notification, Rx and Tx Endpoints */
|
||||
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);
|
||||
|
||||
Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
|
||||
ENDPOINT_DIR_IN, CDC_NOTIFICATION_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.
|
||||
*/
|
||||
void EVENT_USB_UnhandledControlPacket(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;
|
||||
}
|
||||
}
|
||||
|
||||
/** 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 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.
|
||||
*/
|
||||
TASK(RNDIS_Task)
|
||||
{
|
||||
/* 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_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_IsOUTReceived() && !(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.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_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_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.
|
||||
*/
|
||||
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);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue