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					134 lines
				
				4.0 KiB
			
		
		
			
		
	
	
					134 lines
				
				4.0 KiB
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											8 years ago
										 
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								/*
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								             LUFA Library
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								     Copyright (C) Dean Camera, 2017.
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								  dean [at] fourwalledcubicle [dot] com
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								           www.lufa-lib.org
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								*/
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								/*
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								  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
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								  Permission to use, copy, modify, distribute, and sell this
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								  software and its documentation for any purpose is hereby granted
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								  without fee, provided that the above copyright notice appear in
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								  all copies and that both that the copyright notice and this
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								  permission notice and warranty disclaimer appear in supporting
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								  documentation, and that the name of the author not be used in
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								  advertising or publicity pertaining to distribution of the
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								  software without specific, written prior permission.
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								  The author disclaims 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
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								  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 USB host application. This file contains the
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								 *  main tasks of the application and is responsible for the initial
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								 *  application hardware configuration.
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								 */
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								#include "HostApplication.h"
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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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									GlobalInterruptEnable();
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									for (;;)
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									{
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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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									USB_Init(USB_MODE_Host, USB_DEVICE_OPT_FULLSPEED | USB_OPT_AUTO_PLL);
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								}
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								/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, 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_Host_DeviceAttached(void)
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								{
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								}
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								/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
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								 *  stops the library USB task management process.
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								 */
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								void EVENT_USB_Host_DeviceUnattached(void)
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								{
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								}
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								/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
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								 *  enumerated by the host and is now ready to be used by the application.
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								 */
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								void EVENT_USB_Host_DeviceEnumerationComplete(void)
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								{
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									uint16_t ConfigDescriptorSize;
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									uint8_t  ConfigDescriptorData[512];
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									if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
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									                                       sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
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									{
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										return;
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									}
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									if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
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									{
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										return;
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									}
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								}
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								/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
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								void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
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								{
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									USB_Disable();
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									for(;;);
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								}
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								/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
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								 *  enumerating an attached USB device.
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								 */
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								void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
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								                                            const uint8_t SubErrorCode)
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								{
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								}
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								/* Required callback for retrieving descriptors from a LUFA device - unless the USB_HOST_ONLY configuration
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								 * option is set, this is still required even in an application that uses host mode only.
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								 */
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								uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
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										const uint16_t wIndex,
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										const void** const DescriptorAddress
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								#if defined(HAS_MULTIPLE_DESCRIPTOR_ADDRESS_SPACES)
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										, uint8_t* const DescriptorMemorySpace
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								#endif
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								)
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								{
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									return 0;
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								}
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