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Hardware/Demos/Device/LowLevel/BulkVendor/BulkVendor.c 4.43 KB
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  /*
               LUFA Library
       Copyright (C) Dean Camera, 2017.
  
    dean [at] fourwalledcubicle [dot] com
             www.lufa-lib.org
  */
  
  /*
    Copyright 2017  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 disclaims 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 Bulk Vendor demo. This file contains the main tasks of the demo and
   *  is responsible for the initial application hardware configuration.
   */
  
  #define  INCLUDE_FROM_BULKVENDOR_C
  #include "BulkVendor.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();
  
  	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  	GlobalInterruptEnable();
  
  	for (;;)
  	{
  		USB_USBTask();
  
  		uint8_t ReceivedData[VENDOR_IO_EPSIZE];
  		memset(ReceivedData, 0x00, sizeof(ReceivedData));
  
  		Endpoint_SelectEndpoint(VENDOR_OUT_EPADDR);
  		if (Endpoint_IsOUTReceived())
  		{
  			Endpoint_Read_Stream_LE(ReceivedData, VENDOR_IO_EPSIZE, NULL);
  			Endpoint_ClearOUT();
  
  			Endpoint_SelectEndpoint(VENDOR_IN_EPADDR);
  			Endpoint_Write_Stream_LE(ReceivedData, VENDOR_IO_EPSIZE, NULL);
  			Endpoint_ClearIN();
  		}
  	}
  }
  
  /** Configures the board hardware and chip peripherals for the demo's functionality. */
  void SetupHardware(void)
  {
  #if (ARCH == ARCH_AVR8)
  	/* Disable watchdog if enabled by bootloader/fuses */
  	MCUSR &= ~(1 << WDRF);
  	wdt_disable();
  
  	/* Disable clock division */
  	clock_prescale_set(clock_div_1);
  #elif (ARCH == ARCH_XMEGA)
  	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
  	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
  	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
  
  	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
  	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
  	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
  
  	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
  #endif
  
  	/* Hardware Initialization */
  	LEDs_Init();
  	USB_Init();
  }
  
  /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */
  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.
   */
  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.
   */
  void EVENT_USB_Device_ConfigurationChanged(void)
  {
  	bool ConfigSuccess = true;
  
  	/* Setup Vendor Data Endpoints */
  	ConfigSuccess &= Endpoint_ConfigureEndpoint(VENDOR_IN_EPADDR,  EP_TYPE_BULK, VENDOR_IO_EPSIZE, 1);
  	ConfigSuccess &= Endpoint_ConfigureEndpoint(VENDOR_OUT_EPADDR, EP_TYPE_BULK, VENDOR_IO_EPSIZE, 1);
  
  	/* Indicate endpoint configuration success or failure */
  	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
  }
  
  /** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
   *  the device from the USB host before passing along unhandled control requests to the library for processing
   *  internally.
   */
  void EVENT_USB_Device_ControlRequest(void)
  {
  	// Process vendor specific control requests here
  }