384 lines
20 KiB
C
384 lines
20 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2019.
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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 2019 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 definitions and declarations for the library USB CDC Class driver.
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*
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* Common definitions and declarations for the library USB CDC Class driver.
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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 module driver
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* dispatch header located in LUFA/Drivers/USB.h.
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*/
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/** \ingroup Group_USBClassCDC
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* \defgroup Group_USBClassCDCCommon Common Class Definitions
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*
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* \section Sec_USBClassCDCCommon_ModDescription Module Description
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* Constants, Types and Enum definitions that are common to both Device and Host modes for the USB
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* CDC Class.
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*
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* @{
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*/
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#ifndef _CDC_CLASS_COMMON_H_
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#define _CDC_CLASS_COMMON_H_
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/* Includes: */
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#include "../../Core/StdDescriptors.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_CDC_DRIVER)
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#error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
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#endif
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/* Macros: */
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/** \name Virtual Control Line Masks */
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//@{
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/** Mask for the DTR handshake line for use with the \ref CDC_REQ_SetControlLineState class-specific request
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* from the host, to indicate that the DTR line state should be high.
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*/
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#define CDC_CONTROL_LINE_OUT_DTR (1 << 0)
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/** Mask for the RTS handshake line for use with the \ref CDC_REQ_SetControlLineState class-specific request
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* from the host, to indicate that the RTS line state should be high.
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*/
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#define CDC_CONTROL_LINE_OUT_RTS (1 << 1)
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/** Mask for the DCD handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
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* from the device to the host, to indicate that the DCD line state is currently high.
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*/
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#define CDC_CONTROL_LINE_IN_DCD (1 << 0)
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/** Mask for the DSR handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
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* from the device to the host, to indicate that the DSR line state is currently high.
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*/
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#define CDC_CONTROL_LINE_IN_DSR (1 << 1)
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/** Mask for the BREAK handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
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* from the device to the host, to indicate that the BREAK line state is currently high.
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*/
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#define CDC_CONTROL_LINE_IN_BREAK (1 << 2)
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/** Mask for the RING handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
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* from the device to the host, to indicate that the RING line state is currently high.
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*/
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#define CDC_CONTROL_LINE_IN_RING (1 << 3)
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/** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
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* to indicate that a framing error has occurred on the virtual serial port.
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*/
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#define CDC_CONTROL_LINE_IN_FRAMEERROR (1 << 4)
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/** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
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* to indicate that a parity error has occurred on the virtual serial port.
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*/
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#define CDC_CONTROL_LINE_IN_PARITYERROR (1 << 5)
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/** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
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* to indicate that a data overrun error has occurred on the virtual serial port.
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*/
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#define CDC_CONTROL_LINE_IN_OVERRUNERROR (1 << 6)
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//@}
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/* Enums: */
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/** Enum for possible Class, Subclass and Protocol values of device and interface descriptors relating to the CDC
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* device class.
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*/
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enum CDC_Descriptor_ClassSubclassProtocol_t
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{
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CDC_CSCP_CDCClass = 0x02, /**< Descriptor Class value indicating that the device or interface
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* belongs to the CDC class.
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*/
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CDC_CSCP_NoSpecificSubclass = 0x00, /**< Descriptor Subclass value indicating that the device or interface
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* belongs to no specific subclass of the CDC class.
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*/
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CDC_CSCP_ACMSubclass = 0x02, /**< Descriptor Subclass value indicating that the device or interface
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* belongs to the Abstract Control Model CDC subclass.
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*/
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CDC_CSCP_ATCommandProtocol = 0x01, /**< Descriptor Protocol value indicating that the device or interface
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* belongs to the AT Command protocol of the CDC class.
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*/
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CDC_CSCP_NoSpecificProtocol = 0x00, /**< Descriptor Protocol value indicating that the device or interface
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* belongs to no specific protocol of the CDC class.
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*/
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CDC_CSCP_VendorSpecificProtocol = 0xFF, /**< Descriptor Protocol value indicating that the device or interface
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* belongs to a vendor-specific protocol of the CDC class.
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*/
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CDC_CSCP_CDCDataClass = 0x0A, /**< Descriptor Class value indicating that the device or interface
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* belongs to the CDC Data class.
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*/
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CDC_CSCP_NoDataSubclass = 0x00, /**< Descriptor Subclass value indicating that the device or interface
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* belongs to no specific subclass of the CDC data class.
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*/
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CDC_CSCP_NoDataProtocol = 0x00, /**< Descriptor Protocol value indicating that the device or interface
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* belongs to no specific protocol of the CDC data class.
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*/
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};
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/** Enum for the CDC class specific control requests that can be issued by the USB bus host. */
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enum CDC_ClassRequests_t
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{
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CDC_REQ_SendEncapsulatedCommand = 0x00, /**< CDC class-specific request to send an encapsulated command to the device. */
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CDC_REQ_GetEncapsulatedResponse = 0x01, /**< CDC class-specific request to retrieve an encapsulated command response from the device. */
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CDC_REQ_SetLineEncoding = 0x20, /**< CDC class-specific request to set the current virtual serial port configuration settings. */
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CDC_REQ_GetLineEncoding = 0x21, /**< CDC class-specific request to get the current virtual serial port configuration settings. */
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CDC_REQ_SetControlLineState = 0x22, /**< CDC class-specific request to set the current virtual serial port handshake line states. */
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CDC_REQ_SendBreak = 0x23, /**< CDC class-specific request to send a break to the receiver via the carrier channel. */
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};
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/** Enum for the CDC class specific notification requests that can be issued by a CDC device to a host. */
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enum CDC_ClassNotifications_t
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{
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CDC_NOTIF_SerialState = 0x20, /**< Notification type constant for a change in the virtual serial port
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* handshake line states, for use with a \ref USB_Request_Header_t
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* notification structure when sent to the host via the CDC notification
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* endpoint.
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*/
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};
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/** Enum for the CDC class specific descriptor types. */
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enum CDC_DescriptorTypes_t
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{
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CDC_DTYPE_CSInterface = 0x24, /**< CDC class specific Interface functional descriptor. */
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CDC_DTYPE_CSEndpoint = 0x25, /**< CDC class specific Endpoint functional descriptor. */
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};
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/** Enum for the CDC class specific interface descriptor subtypes. */
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enum CDC_DescriptorSubtypes_t
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{
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CDC_DSUBTYPE_CSInterface_Header = 0x00, /**< CDC class specific Header functional descriptor. */
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CDC_DSUBTYPE_CSInterface_CallManagement = 0x01, /**< CDC class specific Call Management functional descriptor. */
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CDC_DSUBTYPE_CSInterface_ACM = 0x02, /**< CDC class specific Abstract Control Model functional descriptor. */
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CDC_DSUBTYPE_CSInterface_DirectLine = 0x03, /**< CDC class specific Direct Line functional descriptor. */
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CDC_DSUBTYPE_CSInterface_TelephoneRinger = 0x04, /**< CDC class specific Telephone Ringer functional descriptor. */
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CDC_DSUBTYPE_CSInterface_TelephoneCall = 0x05, /**< CDC class specific Telephone Call functional descriptor. */
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CDC_DSUBTYPE_CSInterface_Union = 0x06, /**< CDC class specific Union functional descriptor. */
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CDC_DSUBTYPE_CSInterface_CountrySelection = 0x07, /**< CDC class specific Country Selection functional descriptor. */
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CDC_DSUBTYPE_CSInterface_TelephoneOpModes = 0x08, /**< CDC class specific Telephone Operation Modes functional descriptor. */
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CDC_DSUBTYPE_CSInterface_USBTerminal = 0x09, /**< CDC class specific USB Terminal functional descriptor. */
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CDC_DSUBTYPE_CSInterface_NetworkChannel = 0x0A, /**< CDC class specific Network Channel functional descriptor. */
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CDC_DSUBTYPE_CSInterface_ProtocolUnit = 0x0B, /**< CDC class specific Protocol Unit functional descriptor. */
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CDC_DSUBTYPE_CSInterface_ExtensionUnit = 0x0C, /**< CDC class specific Extension Unit functional descriptor. */
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CDC_DSUBTYPE_CSInterface_MultiChannel = 0x0D, /**< CDC class specific Multi-Channel Management functional descriptor. */
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CDC_DSUBTYPE_CSInterface_CAPI = 0x0E, /**< CDC class specific Common ISDN API functional descriptor. */
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CDC_DSUBTYPE_CSInterface_Ethernet = 0x0F, /**< CDC class specific Ethernet functional descriptor. */
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CDC_DSUBTYPE_CSInterface_ATM = 0x10, /**< CDC class specific Asynchronous Transfer Mode functional descriptor. */
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};
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/** Enum for the possible line encoding formats of a virtual serial port. */
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enum CDC_LineEncodingFormats_t
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{
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CDC_LINEENCODING_OneStopBit = 0, /**< Each frame contains one stop bit. */
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CDC_LINEENCODING_OneAndAHalfStopBits = 1, /**< Each frame contains one and a half stop bits. */
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CDC_LINEENCODING_TwoStopBits = 2, /**< Each frame contains two stop bits. */
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};
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/** Enum for the possible line encoding parity settings of a virtual serial port. */
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enum CDC_LineEncodingParity_t
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{
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CDC_PARITY_None = 0, /**< No parity bit mode on each frame. */
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CDC_PARITY_Odd = 1, /**< Odd parity bit mode on each frame. */
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CDC_PARITY_Even = 2, /**< Even parity bit mode on each frame. */
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CDC_PARITY_Mark = 3, /**< Mark parity bit mode on each frame. */
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CDC_PARITY_Space = 4, /**< Space parity bit mode on each frame. */
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};
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/* Type Defines: */
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/** \brief CDC class-specific Functional Header Descriptor (LUFA naming conventions).
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*
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* Type define for a CDC class-specific functional header descriptor. This indicates to the host that the device
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* contains one or more CDC functional data descriptors, which give the CDC interface's capabilities and configuration.
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* See the CDC class specification for more details.
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*
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* \see \ref USB_CDC_StdDescriptor_FunctionalHeader_t for the version of this type with standard element names.
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*
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* \note Regardless of CPU architecture, these values should be stored as little endian.
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*/
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typedef struct
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{
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USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
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uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors,
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* must be \ref CDC_DSUBTYPE_CSInterface_Header.
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*/
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uint16_t CDCSpecification; /**< Version number of the CDC specification implemented by the device,
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* encoded in BCD format.
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*
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* \see \ref VERSION_BCD() utility macro.
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*/
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} ATTR_PACKED USB_CDC_Descriptor_FunctionalHeader_t;
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/** \brief CDC class-specific Functional Header Descriptor (USB-IF naming conventions).
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*
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* Type define for a CDC class-specific functional header descriptor. This indicates to the host that the device
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* contains one or more CDC functional data descriptors, which give the CDC interface's capabilities and configuration.
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* See the CDC class specification for more details.
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*
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* \see \ref USB_CDC_Descriptor_FunctionalHeader_t for the version of this type with non-standard LUFA specific
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* element names.
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*
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* \note Regardless of CPU architecture, these values should be stored as little endian.
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*/
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typedef struct
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{
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uint8_t bFunctionLength; /**< Size of the descriptor, in bytes. */
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uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
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* given by the specific class.
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*/
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uint8_t bDescriptorSubType; /**< Sub type value used to distinguish between CDC class-specific descriptors,
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* must be \ref CDC_DSUBTYPE_CSInterface_Header.
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*/
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uint16_t bcdCDC; /**< Version number of the CDC specification implemented by the device, encoded in BCD format.
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*
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* \see \ref VERSION_BCD() utility macro.
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*/
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} ATTR_PACKED USB_CDC_StdDescriptor_FunctionalHeader_t;
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/** \brief CDC class-specific Functional ACM Descriptor (LUFA naming conventions).
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*
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* Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface
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* supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.
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*
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* \see \ref USB_CDC_StdDescriptor_FunctionalACM_t for the version of this type with standard element names.
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*
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* \note Regardless of CPU architecture, these values should be stored as little endian.
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*/
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typedef struct
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{
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USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
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uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors,
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* must be \ref CDC_DSUBTYPE_CSInterface_ACM.
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*/
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uint8_t Capabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
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* this should be set to a fixed value of \c 0x06 - for other capabilities, refer
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* to the CDC ACM specification.
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*/
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} ATTR_PACKED USB_CDC_Descriptor_FunctionalACM_t;
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/** \brief CDC class-specific Functional ACM Descriptor (USB-IF naming conventions).
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*
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* Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface
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* supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.
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*
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* \see \ref USB_CDC_Descriptor_FunctionalACM_t for the version of this type with non-standard LUFA specific
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* element names.
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*
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* \note Regardless of CPU architecture, these values should be stored as little endian.
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*/
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typedef struct
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{
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uint8_t bFunctionLength; /**< Size of the descriptor, in bytes. */
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uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
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* given by the specific class.
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*/
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uint8_t bDescriptorSubType; /**< Sub type value used to distinguish between CDC class-specific descriptors,
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* must be \ref CDC_DSUBTYPE_CSInterface_ACM.
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*/
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uint8_t bmCapabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
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* this should be set to a fixed value of 0x06 - for other capabilities, refer
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* to the CDC ACM specification.
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*/
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} ATTR_PACKED USB_CDC_StdDescriptor_FunctionalACM_t;
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/** \brief CDC class-specific Functional Union Descriptor (LUFA naming conventions).
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*
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* Type define for a CDC class-specific functional Union descriptor. This indicates to the host that specific
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* CDC control and data interfaces are related. See the CDC class specification for more details.
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*
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* \see \ref USB_CDC_StdDescriptor_FunctionalUnion_t for the version of this type with standard element names.
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*
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* \note Regardless of CPU architecture, these values should be stored as little endian.
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*/
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typedef struct
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{
|
||
|
|
USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
|
||
|
|
uint8_t Subtype; /**< Sub type value used to distinguish between CDC class-specific descriptors,
|
||
|
|
* must be \ref CDC_DSUBTYPE_CSInterface_Union.
|
||
|
|
*/
|
||
|
|
uint8_t MasterInterfaceNumber; /**< Interface number of the CDC Control interface. */
|
||
|
|
uint8_t SlaveInterfaceNumber; /**< Interface number of the CDC Data interface. */
|
||
|
|
} ATTR_PACKED USB_CDC_Descriptor_FunctionalUnion_t;
|
||
|
|
|
||
|
|
/** \brief CDC class-specific Functional Union Descriptor (USB-IF naming conventions).
|
||
|
|
*
|
||
|
|
* Type define for a CDC class-specific functional Union descriptor. This indicates to the host that specific
|
||
|
|
* CDC control and data interfaces are related. See the CDC class specification for more details.
|
||
|
|
*
|
||
|
|
* \see \ref USB_CDC_Descriptor_FunctionalUnion_t for the version of this type with non-standard LUFA specific
|
||
|
|
* element names.
|
||
|
|
*
|
||
|
|
* \note Regardless of CPU architecture, these values should be stored as little endian.
|
||
|
|
*/
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
uint8_t bFunctionLength; /**< Size of the descriptor, in bytes. */
|
||
|
|
uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
|
||
|
|
* given by the specific class.
|
||
|
|
*/
|
||
|
|
uint8_t bDescriptorSubType; /**< Sub type value used to distinguish between CDC class-specific descriptors,
|
||
|
|
* must be \ref CDC_DSUBTYPE_CSInterface_Union.
|
||
|
|
*/
|
||
|
|
uint8_t bMasterInterface; /**< Interface number of the CDC Control interface. */
|
||
|
|
uint8_t bSlaveInterface0; /**< Interface number of the CDC Data interface. */
|
||
|
|
} ATTR_PACKED USB_CDC_StdDescriptor_FunctionalUnion_t;
|
||
|
|
|
||
|
|
/** \brief CDC Virtual Serial Port Line Encoding Settings Structure.
|
||
|
|
*
|
||
|
|
* Type define for a CDC Line Encoding structure, used to hold the various encoding parameters for a virtual
|
||
|
|
* serial port.
|
||
|
|
*
|
||
|
|
* \note Regardless of CPU architecture, these values should be stored as little endian.
|
||
|
|
*/
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
uint32_t BaudRateBPS; /**< Baud rate of the virtual serial port, in bits per second. */
|
||
|
|
uint8_t CharFormat; /**< Character format of the virtual serial port, a value from the
|
||
|
|
* \ref CDC_LineEncodingFormats_t enum.
|
||
|
|
*/
|
||
|
|
uint8_t ParityType; /**< Parity setting of the virtual serial port, a value from the
|
||
|
|
* \ref CDC_LineEncodingParity_t enum.
|
||
|
|
*/
|
||
|
|
uint8_t DataBits; /**< Bits of data per character of the virtual serial port. */
|
||
|
|
} ATTR_PACKED CDC_LineEncoding_t;
|
||
|
|
|
||
|
|
/* Disable C linkage for C++ Compilers: */
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/** @} */
|
||
|
|
|