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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
+ * \brief Common USB Device definitions for all architectures.
+ * \copydetails Group_Device
+ *
+ * \note This file should not be included directly. It is automatically included as needed by the USB driver
+ * dispatch header located in LUFA/Drivers/USB/USB.h.
+ */
+
+/** \ingroup Group_USB
+ * \defgroup Group_Device Device Management
+ * \brief USB Device management definitions for USB device mode.
+ *
+ * USB Device mode related definitions common to all architectures. This module contains definitions which
+ * are used when the USB controller is initialized in device mode.
+ *
+ * @{
+ */
+
+#ifndef __USBDEVICE_H__
+#define __USBDEVICE_H__
+
+ /* Includes: */
+ #include "../../../Common/Common.h"
+ #include "USBMode.h"
+ #include "StdDescriptors.h"
+ #include "USBInterrupt.h"
+ #include "Endpoint.h"
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_USB_DRIVER)
+ #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Enums: */
+ /** Enum for the various states of the USB Device state machine. Only some states are
+ * implemented in the LUFA library - other states are left to the user to implement.
+ *
+ * For information on each possible USB device state, refer to the USB 2.0 specification.
+ *
+ * \see \ref USB_DeviceState, which stores the current device state machine state.
+ */
+ enum USB_Device_States_t
+ {
+ DEVICE_STATE_Unattached = 0, /**< Internally implemented by the library. This state indicates
+ * that the device is not currently connected to a host.
+ */
+ DEVICE_STATE_Powered = 1, /**< Internally implemented by the library. This state indicates
+ * that the device is connected to a host, but enumeration has not
+ * yet begun.
+ */
+ DEVICE_STATE_Default = 2, /**< Internally implemented by the library. This state indicates
+ * that the device's USB bus has been reset by the host and it is
+ * now waiting for the host to begin the enumeration process.
+ */
+ DEVICE_STATE_Addressed = 3, /**< Internally implemented by the library. This state indicates
+ * that the device has been addressed by the USB Host, but is not
+ * yet configured.
+ */
+ DEVICE_STATE_Configured = 4, /**< May be implemented by the user project. This state indicates
+ * that the device has been enumerated by the host and is ready
+ * for USB communications to begin.
+ */
+ DEVICE_STATE_Suspended = 5, /**< May be implemented by the user project. This state indicates
+ * that the USB bus has been suspended by the host, and the device
+ * should power down to a minimal power level until the bus is
+ * resumed.
+ */
+ };
+
+ /* Function Prototypes: */
+ /** Function to retrieve a given descriptor's size and memory location from the given descriptor type value,
+ * index and language ID. This function MUST be overridden in the user application (added with full, identical
+ * prototype and name so that the library can call it to retrieve descriptor data.
+ *
+ * \param[in] wValue The type of the descriptor to retrieve in the upper byte, and the index in the
+ * lower byte (when more than one descriptor of the given type exists, such as the
+ * case of string descriptors). The type may be one of the standard types defined
+ * in the DescriptorTypes_t enum, or may be a class-specific descriptor type value.
+ * \param[in] wIndex The language ID of the string to return if the \c wValue type indicates
+ * \ref DTYPE_String, otherwise zero for standard descriptors, or as defined in a
+ * class-specific standards.
+ * \param[out] DescriptorAddress Pointer to the descriptor in memory. This should be set by the routine to
+ * the address of the descriptor.
+ * \param[out] DescriptorMemorySpace A value from the \ref USB_DescriptorMemorySpaces_t enum to indicate the memory
+ * space in which the descriptor is stored. This parameter does not exist when one
+ * of the \c USE_*_DESCRIPTORS compile time options is used, or on architectures which
+ * use a unified address space.
+ *
+ * \note By default, the library expects all descriptors to be located in flash memory via the \c PROGMEM attribute.
+ * If descriptors should be located in RAM or EEPROM instead (to speed up access in the case of RAM, or to
+ * allow the descriptors to be changed dynamically at runtime) either the \c USE_RAM_DESCRIPTORS or the
+ * \c USE_EEPROM_DESCRIPTORS tokens may be defined in the project makefile and passed to the compiler by the -D
+ * switch.
+ *
+ * \return Size in bytes of the descriptor if it exists, zero or \ref NO_DESCRIPTOR otherwise.
+ */
+ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+ const uint16_t wIndex,
+ const void** const DescriptorAddress
+ #if (defined(ARCH_HAS_MULTI_ADDRESS_SPACE) || defined(__DOXYGEN__)) && \
+ !(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS))
+ , uint8_t* const DescriptorMemorySpace
+ #endif
+ ) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
+
+ /* Architecture Includes: */
+ #if (ARCH == ARCH_AVR8)
+ #include "AVR8/Device_AVR8.h"
+ #elif (ARCH == ARCH_UC3)
+ #include "UC3/Device_UC3.h"
+ #elif (ARCH == ARCH_XMEGA)
+ #include "XMEGA/Device_XMEGA.h"
+ #endif
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+