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Commit of new class abstraction APIs for all device demos other than the MIDI demo - not documented yet.

Browse source 
Removed scheduler and memory allocation libraries.

Added new EVENT_USB_StartOfFrame event in the library to indicate the start of each USB frame (when generated).

Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt.
This commit is contained in:
Dean Camera 2009-06-01 11:03:39 +00:00
parent 2440ca268a
commit d1e5266036
106 changed files with 3072 additions and 5760 deletions
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322
Demos/Device/RNDISEthernet/RNDISEthernet.c
View file

@ -28,27 +28,50 @@
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 },
};
USB_ClassInfo_RNDIS_t Ethernet_RNDIS_Interface =
{
.ControlInterfaceNumber = 0,
/** Main program entry point. This routine configures the hardware required by the application, then
* starts the scheduler to run the USB management task.
*/
.DataINEndpointNumber = CDC_TX_EPNUM,
.DataINEndpointSize = CDC_TXRX_EPSIZE,
.DataOUTEndpointNumber = CDC_RX_EPNUM,
.DataOUTEndpointSize = CDC_TXRX_EPSIZE,
.NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
.NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
.AdapterVendorDescription = "LUFA RNDIS Demo Adapter",
.AdapterMACAddress = {ADAPTER_MAC_ADDRESS},
};
int main(void)
{
SetupHardware();
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
printf_P(PSTR("\r\n\r\n****** RNDIS Demo running. ******\r\n"));
for (;;)
{
if (Ethernet_RNDIS_Interface.FrameIN.FrameInBuffer)
{
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
Ethernet_ProcessPacket(&Ethernet_RNDIS_Interface.FrameIN, &Ethernet_RNDIS_Interface.FrameOUT);
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
TCP_TCPTask(&Ethernet_RNDIS_Interface);
USB_RNDIS_USBTask(&Ethernet_RNDIS_Interface);
USB_USBTask();
}
}
void SetupHardware(void)
{
/* Disable watchdog if enabled by bootloader/fuses */
MCUSR &= ~(1 << WDRF);
@ -60,279 +83,32 @@ int main(void)
/* 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();
/* Initialize TCP and Webserver modules */
TCP_Init();
Webserver_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_Connect(void)
{
/* Start USB management task */
Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
/* Indicate USB enumerating */
UpdateStatus(Status_USBEnumerating);
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_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);
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_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);
LEDs_SetAllLEDs(LEDMASK_USB_READY);
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);
if (!(USB_RNDIS_ConfigureEndpoints(&Ethernet_RNDIS_Interface)))
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
/** 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);
}
USB_RNDIS_ProcessControlPacket(&Ethernet_RNDIS_Interface);
}