Squashed 'lib/lufa/' content from commit 385d40300
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Jack Humbert
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LUFA/Drivers/USB/Core/Device.h
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LUFA/Drivers/USB/Core/Device.h
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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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* \brief Common USB Device definitions for all architectures.
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* \copydetails Group_Device
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*
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* \note This file should not be included directly. It is automatically included as needed by the USB driver
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* dispatch header located in LUFA/Drivers/USB/USB.h.
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*/
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/** \ingroup Group_USB
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* \defgroup Group_Device Device Management
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* \brief USB Device management definitions for USB device mode.
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*
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* USB Device mode related definitions common to all architectures. This module contains definitions which
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* are used when the USB controller is initialized in device mode.
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*
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* @{
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*/
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#ifndef __USBDEVICE_H__
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#define __USBDEVICE_H__
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/* Includes: */
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#include "../../../Common/Common.h"
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#include "USBMode.h"
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#include "StdDescriptors.h"
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#include "USBInterrupt.h"
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#include "Endpoint.h"
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/* Enable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Preprocessor Checks: */
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#if !defined(__INCLUDE_FROM_USB_DRIVER)
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#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
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#endif
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/* Public Interface - May be used in end-application: */
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/* Enums: */
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/** Enum for the various states of the USB Device state machine. Only some states are
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* implemented in the LUFA library - other states are left to the user to implement.
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*
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* For information on each possible USB device state, refer to the USB 2.0 specification.
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*
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* \see \ref USB_DeviceState, which stores the current device state machine state.
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*/
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enum USB_Device_States_t
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{
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DEVICE_STATE_Unattached = 0, /**< Internally implemented by the library. This state indicates
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* that the device is not currently connected to a host.
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*/
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DEVICE_STATE_Powered = 1, /**< Internally implemented by the library. This state indicates
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* that the device is connected to a host, but enumeration has not
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* yet begun.
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*/
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DEVICE_STATE_Default = 2, /**< Internally implemented by the library. This state indicates
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* that the device's USB bus has been reset by the host and it is
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* now waiting for the host to begin the enumeration process.
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*/
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DEVICE_STATE_Addressed = 3, /**< Internally implemented by the library. This state indicates
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* that the device has been addressed by the USB Host, but is not
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* yet configured.
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*/
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DEVICE_STATE_Configured = 4, /**< May be implemented by the user project. This state indicates
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* that the device has been enumerated by the host and is ready
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* for USB communications to begin.
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*/
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DEVICE_STATE_Suspended = 5, /**< May be implemented by the user project. This state indicates
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* that the USB bus has been suspended by the host, and the device
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* should power down to a minimal power level until the bus is
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* resumed.
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*/
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};
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/* Function Prototypes: */
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/** Function to retrieve a given descriptor's size and memory location from the given descriptor type value,
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* index and language ID. This function MUST be overridden in the user application (added with full, identical
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* prototype and name so that the library can call it to retrieve descriptor data.
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*
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* \param[in] wValue The type of the descriptor to retrieve in the upper byte, and the index in the
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* lower byte (when more than one descriptor of the given type exists, such as the
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* case of string descriptors). The type may be one of the standard types defined
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* in the DescriptorTypes_t enum, or may be a class-specific descriptor type value.
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* \param[in] wIndex The language ID of the string to return if the \c wValue type indicates
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* \ref DTYPE_String, otherwise zero for standard descriptors, or as defined in a
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* class-specific standards.
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* \param[out] DescriptorAddress Pointer to the descriptor in memory. This should be set by the routine to
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* the address of the descriptor.
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* \param[out] DescriptorMemorySpace A value from the \ref USB_DescriptorMemorySpaces_t enum to indicate the memory
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* space in which the descriptor is stored. This parameter does not exist when one
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* of the \c USE_*_DESCRIPTORS compile time options is used, or on architectures which
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* use a unified address space.
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*
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* \note By default, the library expects all descriptors to be located in flash memory via the \c PROGMEM attribute.
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* If descriptors should be located in RAM or EEPROM instead (to speed up access in the case of RAM, or to
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* allow the descriptors to be changed dynamically at runtime) either the \c USE_RAM_DESCRIPTORS or the
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* \c USE_EEPROM_DESCRIPTORS tokens may be defined in the project makefile and passed to the compiler by the -D
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* switch.
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*
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* \return Size in bytes of the descriptor if it exists, zero or \ref NO_DESCRIPTOR otherwise.
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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(ARCH_HAS_MULTI_ADDRESS_SPACE) || defined(__DOXYGEN__)) && \
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!(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS))
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, uint8_t* const DescriptorMemorySpace
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#endif
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) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
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/* Architecture Includes: */
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#if (ARCH == ARCH_AVR8)
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#include "AVR8/Device_AVR8.h"
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#elif (ARCH == ARCH_UC3)
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#include "UC3/Device_UC3.h"
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#elif (ARCH == ARCH_XMEGA)
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#include "XMEGA/Device_XMEGA.h"
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#endif
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/* Disable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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}
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#endif
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#endif
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/** @} */
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