Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style.
This commit is contained in:
Dean Camera
parent
e331b531c6
commit
071e02c6b6
839 changed files with 274562 additions and 274562 deletions
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@ -1,326 +1,326 @@
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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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.
|
||||
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||||
The author disclaim all warranties with regard to this
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||||
software, including all implied warranties of merchantability
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||||
and fitness. In no event shall the author be liable for any
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||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
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||||
in an action of contract, negligence or other tortious action,
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||||
arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the DualVirtualSerial demo. This file contains the main tasks of the demo and
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* is responsible for the initial application hardware configuration.
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*/
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#include "DualVirtualSerial.h"
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/** Contains the current baud rate and other settings of the first virtual serial port. While this demo does not use
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* the physical USART and thus does not use these settings, they must still be retained and returned to the host
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* upon request or the host will assume the device is non-functional.
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*
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* These values are set by the host via a class-specific request, however they are not required to be used accurately.
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* It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical
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* serial link characteristics and instead sends and receives data in endpoint streams.
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*/
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CDC_Line_Coding_t LineEncoding1 = { .BaudRateBPS = 0,
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.CharFormat = OneStopBit,
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.ParityType = Parity_None,
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.DataBits = 8 };
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/** Contains the current baud rate and other settings of the second virtual serial port. While this demo does not use
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* the physical USART and thus does not use these settings, they must still be retained and returned to the host
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* upon request or the host will assume the device is non-functional.
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*
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* These values are set by the host via a class-specific request, however they are not required to be used accurately.
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* It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical
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* serial link characteristics and instead sends and receives data in endpoint streams.
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*/
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CDC_Line_Coding_t LineEncoding2 = { .BaudRateBPS = 0,
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.CharFormat = OneStopBit,
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.ParityType = Parity_None,
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.DataBits = 8 };
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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sei();
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for (;;)
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{
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CDC1_Task();
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CDC2_Task();
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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Joystick_Init();
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LEDs_Init();
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USB_Init();
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}
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/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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void EVENT_USB_Device_Connect(void)
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{
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/* Indicate USB enumerating */
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
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* the status LEDs and stops the USB management and CDC management tasks.
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*/
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void EVENT_USB_Device_Disconnect(void)
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{
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/* Indicate USB not ready */
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
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* of the USB device after enumeration - the device endpoints are configured and the CDC management tasks are started.
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*/
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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/* Indicate USB connected and ready */
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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/* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */
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if (!(Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
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ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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if (!(Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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if (!(Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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/* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */
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if (!(Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
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ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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if (!(Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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if (!(Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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/* Reset line encoding baud rates so that the host knows to send new values */
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LineEncoding1.BaudRateBPS = 0;
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LineEncoding2.BaudRateBPS = 0;
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}
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/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
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* control requests that are not handled internally by the USB library (including the CDC control commands,
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* which are all issued via the control endpoint), so that they can be handled appropriately for the application.
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*/
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void EVENT_USB_Device_UnhandledControlRequest(void)
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{
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/* Determine which interface's Line Coding data is being set from the wIndex parameter */
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uint8_t* LineEncodingData = (USB_ControlRequest.wIndex == 0) ? (uint8_t*)&LineEncoding1 : (uint8_t*)&LineEncoding2;
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/* Process CDC specific control requests */
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switch (USB_ControlRequest.bRequest)
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{
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case REQ_GetLineEncoding:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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/* Acknowledge the SETUP packet, ready for data transfer */
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Endpoint_ClearSETUP();
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/* Write the line coding data to the control endpoint */
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Endpoint_Write_Control_Stream_LE(LineEncodingData, sizeof(CDC_Line_Coding_t));
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/* Finalize the stream transfer to send the last packet or clear the host abort */
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Endpoint_ClearOUT();
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}
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break;
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case REQ_SetLineEncoding:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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/* Acknowledge the SETUP packet, ready for data transfer */
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Endpoint_ClearSETUP();
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/* Read the line coding data in from the host into the global struct */
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Endpoint_Read_Control_Stream_LE(LineEncodingData, sizeof(CDC_Line_Coding_t));
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/* Finalize the stream transfer to clear the last packet from the host */
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Endpoint_ClearIN();
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}
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break;
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case REQ_SetControlLineState:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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/* Acknowledge the SETUP packet, ready for data transfer */
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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}
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break;
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}
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}
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/** Function to manage CDC data transmission and reception to and from the host for the first CDC interface, which sends joystick
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* movements to the host as ASCII strings.
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*/
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void CDC1_Task(void)
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{
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char* ReportString = NULL;
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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static bool ActionSent = false;
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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/* Determine if a joystick action has occurred */
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if (JoyStatus_LCL & JOY_UP)
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ReportString = "Joystick Up\r\n";
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else if (JoyStatus_LCL & JOY_DOWN)
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ReportString = "Joystick Down\r\n";
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else if (JoyStatus_LCL & JOY_LEFT)
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ReportString = "Joystick Left\r\n";
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else if (JoyStatus_LCL & JOY_RIGHT)
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ReportString = "Joystick Right\r\n";
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else if (JoyStatus_LCL & JOY_PRESS)
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ReportString = "Joystick Pressed\r\n";
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else
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ActionSent = false;
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/* Flag management - Only allow one string to be sent per action */
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if ((ReportString != NULL) && (ActionSent == false) && LineEncoding1.BaudRateBPS)
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{
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ActionSent = true;
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/* Select the Serial Tx Endpoint */
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Endpoint_SelectEndpoint(CDC1_TX_EPNUM);
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/* Write the String to the Endpoint */
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Endpoint_Write_Stream_LE(ReportString, strlen(ReportString));
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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/* Wait until the endpoint is ready for another packet */
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Endpoint_WaitUntilReady();
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/* Send an empty packet to ensure that the host does not buffer data sent to it */
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Endpoint_ClearIN();
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}
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/* Select the Serial Rx Endpoint */
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Endpoint_SelectEndpoint(CDC1_RX_EPNUM);
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/* Throw away any received data from the host */
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if (Endpoint_IsOUTReceived())
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Endpoint_ClearOUT();
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}
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/** Function to manage CDC data transmission and reception to and from the host for the second CDC interface, which echoes back
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* all data sent to it from the host.
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*/
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void CDC2_Task(void)
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{
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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/* Select the Serial Rx Endpoint */
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Endpoint_SelectEndpoint(CDC2_RX_EPNUM);
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/* Check to see if any data has been received */
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if (Endpoint_IsOUTReceived())
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{
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/* Create a temp buffer big enough to hold the incoming endpoint packet */
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uint8_t Buffer[Endpoint_BytesInEndpoint()];
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/* Remember how large the incoming packet is */
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uint16_t DataLength = Endpoint_BytesInEndpoint();
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/* Read in the incoming packet into the buffer */
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Endpoint_Read_Stream_LE(&Buffer, DataLength);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearOUT();
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/* Select the Serial Tx Endpoint */
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Endpoint_SelectEndpoint(CDC2_TX_EPNUM);
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/* Write the received data to the endpoint */
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Endpoint_Write_Stream_LE(&Buffer, DataLength);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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/* Wait until the endpoint is ready for the next packet */
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Endpoint_WaitUntilReady();
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/* Send an empty packet to prevent host buffering */
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Endpoint_ClearIN();
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}
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}
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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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.
|
||||
*/
|
||||
|
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/** \file
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*
|
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* Main source file for the DualVirtualSerial demo. This file contains the main tasks of the demo and
|
||||
* is responsible for the initial application hardware configuration.
|
||||
*/
|
||||
|
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#include "DualVirtualSerial.h"
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|
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/** Contains the current baud rate and other settings of the first virtual serial port. While this demo does not use
|
||||
* the physical USART and thus does not use these settings, they must still be retained and returned to the host
|
||||
* upon request or the host will assume the device is non-functional.
|
||||
*
|
||||
* These values are set by the host via a class-specific request, however they are not required to be used accurately.
|
||||
* It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical
|
||||
* serial link characteristics and instead sends and receives data in endpoint streams.
|
||||
*/
|
||||
CDC_Line_Coding_t LineEncoding1 = { .BaudRateBPS = 0,
|
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.CharFormat = OneStopBit,
|
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.ParityType = Parity_None,
|
||||
.DataBits = 8 };
|
||||
|
||||
/** Contains the current baud rate and other settings of the second virtual serial port. While this demo does not use
|
||||
* the physical USART and thus does not use these settings, they must still be retained and returned to the host
|
||||
* upon request or the host will assume the device is non-functional.
|
||||
*
|
||||
* These values are set by the host via a class-specific request, however they are not required to be used accurately.
|
||||
* It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical
|
||||
* serial link characteristics and instead sends and receives data in endpoint streams.
|
||||
*/
|
||||
CDC_Line_Coding_t LineEncoding2 = { .BaudRateBPS = 0,
|
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.CharFormat = OneStopBit,
|
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.ParityType = Parity_None,
|
||||
.DataBits = 8 };
|
||||
|
||||
|
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/** Main program entry point. This routine configures the hardware required by the application, then
|
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* enters a loop to run the application tasks in sequence.
|
||||
*/
|
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int main(void)
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{
|
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SetupHardware();
|
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|
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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sei();
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|
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for (;;)
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{
|
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CDC1_Task();
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CDC2_Task();
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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 */
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||||
Joystick_Init();
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LEDs_Init();
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USB_Init();
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||||
}
|
||||
|
||||
/** 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 the USB management and CDC management 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 set the current configuration
|
||||
* of the USB device after enumeration - the device endpoints are configured and the CDC management tasks are started.
|
||||
*/
|
||||
void EVENT_USB_Device_ConfigurationChanged(void)
|
||||
{
|
||||
/* Indicate USB connected and ready */
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_READY);
|
||||
|
||||
/* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
|
||||
ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK,
|
||||
ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK,
|
||||
ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
/* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
|
||||
ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK,
|
||||
ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
if (!(Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK,
|
||||
ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
|
||||
ENDPOINT_BANK_SINGLE)))
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
/* Reset line encoding baud rates so that the host knows to send new values */
|
||||
LineEncoding1.BaudRateBPS = 0;
|
||||
LineEncoding2.BaudRateBPS = 0;
|
||||
}
|
||||
|
||||
/** 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 CDC control commands,
|
||||
* which are all issued via the control endpoint), so that they can be handled appropriately for the application.
|
||||
*/
|
||||
void EVENT_USB_Device_UnhandledControlRequest(void)
|
||||
{
|
||||
/* Determine which interface's Line Coding data is being set from the wIndex parameter */
|
||||
uint8_t* LineEncodingData = (USB_ControlRequest.wIndex == 0) ? (uint8_t*)&LineEncoding1 : (uint8_t*)&LineEncoding2;
|
||||
|
||||
/* Process CDC specific control requests */
|
||||
switch (USB_ControlRequest.bRequest)
|
||||
{
|
||||
case REQ_GetLineEncoding:
|
||||
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
|
||||
{
|
||||
/* Acknowledge the SETUP packet, ready for data transfer */
|
||||
Endpoint_ClearSETUP();
|
||||
|
||||
/* Write the line coding data to the control endpoint */
|
||||
Endpoint_Write_Control_Stream_LE(LineEncodingData, sizeof(CDC_Line_Coding_t));
|
||||
|
||||
/* Finalize the stream transfer to send the last packet or clear the host abort */
|
||||
Endpoint_ClearOUT();
|
||||
}
|
||||
|
||||
break;
|
||||
case REQ_SetLineEncoding:
|
||||
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
||||
{
|
||||
/* Acknowledge the SETUP packet, ready for data transfer */
|
||||
Endpoint_ClearSETUP();
|
||||
|
||||
/* Read the line coding data in from the host into the global struct */
|
||||
Endpoint_Read_Control_Stream_LE(LineEncodingData, sizeof(CDC_Line_Coding_t));
|
||||
|
||||
/* Finalize the stream transfer to clear the last packet from the host */
|
||||
Endpoint_ClearIN();
|
||||
}
|
||||
|
||||
break;
|
||||
case REQ_SetControlLineState:
|
||||
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
||||
{
|
||||
/* Acknowledge the SETUP packet, ready for data transfer */
|
||||
Endpoint_ClearSETUP();
|
||||
|
||||
Endpoint_ClearStatusStage();
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/** Function to manage CDC data transmission and reception to and from the host for the first CDC interface, which sends joystick
|
||||
* movements to the host as ASCII strings.
|
||||
*/
|
||||
void CDC1_Task(void)
|
||||
{
|
||||
char* ReportString = NULL;
|
||||
uint8_t JoyStatus_LCL = Joystick_GetStatus();
|
||||
static bool ActionSent = false;
|
||||
|
||||
/* Device must be connected and configured for the task to run */
|
||||
if (USB_DeviceState != DEVICE_STATE_Configured)
|
||||
return;
|
||||
|
||||
/* Determine if a joystick action has occurred */
|
||||
if (JoyStatus_LCL & JOY_UP)
|
||||
ReportString = "Joystick Up\r\n";
|
||||
else if (JoyStatus_LCL & JOY_DOWN)
|
||||
ReportString = "Joystick Down\r\n";
|
||||
else if (JoyStatus_LCL & JOY_LEFT)
|
||||
ReportString = "Joystick Left\r\n";
|
||||
else if (JoyStatus_LCL & JOY_RIGHT)
|
||||
ReportString = "Joystick Right\r\n";
|
||||
else if (JoyStatus_LCL & JOY_PRESS)
|
||||
ReportString = "Joystick Pressed\r\n";
|
||||
else
|
||||
ActionSent = false;
|
||||
|
||||
/* Flag management - Only allow one string to be sent per action */
|
||||
if ((ReportString != NULL) && (ActionSent == false) && LineEncoding1.BaudRateBPS)
|
||||
{
|
||||
ActionSent = true;
|
||||
|
||||
/* Select the Serial Tx Endpoint */
|
||||
Endpoint_SelectEndpoint(CDC1_TX_EPNUM);
|
||||
|
||||
/* Write the String to the Endpoint */
|
||||
Endpoint_Write_Stream_LE(ReportString, strlen(ReportString));
|
||||
|
||||
/* Finalize the stream transfer to send the last packet */
|
||||
Endpoint_ClearIN();
|
||||
|
||||
/* Wait until the endpoint is ready for another packet */
|
||||
Endpoint_WaitUntilReady();
|
||||
|
||||
/* Send an empty packet to ensure that the host does not buffer data sent to it */
|
||||
Endpoint_ClearIN();
|
||||
}
|
||||
|
||||
/* Select the Serial Rx Endpoint */
|
||||
Endpoint_SelectEndpoint(CDC1_RX_EPNUM);
|
||||
|
||||
/* Throw away any received data from the host */
|
||||
if (Endpoint_IsOUTReceived())
|
||||
Endpoint_ClearOUT();
|
||||
}
|
||||
|
||||
/** Function to manage CDC data transmission and reception to and from the host for the second CDC interface, which echoes back
|
||||
* all data sent to it from the host.
|
||||
*/
|
||||
void CDC2_Task(void)
|
||||
{
|
||||
/* Device must be connected and configured for the task to run */
|
||||
if (USB_DeviceState != DEVICE_STATE_Configured)
|
||||
return;
|
||||
|
||||
/* Select the Serial Rx Endpoint */
|
||||
Endpoint_SelectEndpoint(CDC2_RX_EPNUM);
|
||||
|
||||
/* Check to see if any data has been received */
|
||||
if (Endpoint_IsOUTReceived())
|
||||
{
|
||||
/* Create a temp buffer big enough to hold the incoming endpoint packet */
|
||||
uint8_t Buffer[Endpoint_BytesInEndpoint()];
|
||||
|
||||
/* Remember how large the incoming packet is */
|
||||
uint16_t DataLength = Endpoint_BytesInEndpoint();
|
||||
|
||||
/* Read in the incoming packet into the buffer */
|
||||
Endpoint_Read_Stream_LE(&Buffer, DataLength);
|
||||
|
||||
/* Finalize the stream transfer to send the last packet */
|
||||
Endpoint_ClearOUT();
|
||||
|
||||
/* Select the Serial Tx Endpoint */
|
||||
Endpoint_SelectEndpoint(CDC2_TX_EPNUM);
|
||||
|
||||
/* Write the received data to the endpoint */
|
||||
Endpoint_Write_Stream_LE(&Buffer, DataLength);
|
||||
|
||||
/* Finalize the stream transfer to send the last packet */
|
||||
Endpoint_ClearIN();
|
||||
|
||||
/* Wait until the endpoint is ready for the next packet */
|
||||
Endpoint_WaitUntilReady();
|
||||
|
||||
/* Send an empty packet to prevent host buffering */
|
||||
Endpoint_ClearIN();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue