--- /dev/null
+/*
+ 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 definitions and declarations for the library USB CDC Class driver.
+ *
+ * Common definitions and declarations for the library USB CDC Class driver.
+ *
+ * \note This file should not be included directly. It is automatically included as needed by the USB module driver
+ * dispatch header located in LUFA/Drivers/USB.h.
+ */
+
+/** \ingroup Group_USBClassCDC
+ * \defgroup Group_USBClassCDCCommon Common Class Definitions
+ *
+ * \section Sec_USBClassCDCCommon_ModDescription Module Description
+ * Constants, Types and Enum definitions that are common to both Device and Host modes for the USB
+ * CDC Class.
+ *
+ * @{
+ */
+
+#ifndef _CDC_CLASS_COMMON_H_
+#define _CDC_CLASS_COMMON_H_
+
+ /* Includes: */
+ #include "../../Core/StdDescriptors.h"
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_CDC_DRIVER)
+ #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
+ #endif
+
+ /* Macros: */
+ /** \name Virtual Control Line Masks */
+ //@{
+ /** Mask for the DTR handshake line for use with the \ref CDC_REQ_SetControlLineState class-specific request
+ * from the host, to indicate that the DTR line state should be high.
+ */
+ #define CDC_CONTROL_LINE_OUT_DTR (1 << 0)
+
+ /** Mask for the RTS handshake line for use with the \ref CDC_REQ_SetControlLineState class-specific request
+ * from the host, to indicate that the RTS line state should be high.
+ */
+ #define CDC_CONTROL_LINE_OUT_RTS (1 << 1)
+
+ /** Mask for the DCD handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
+ * from the device to the host, to indicate that the DCD line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_DCD (1 << 0)
+
+ /** Mask for the DSR handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
+ * from the device to the host, to indicate that the DSR line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_DSR (1 << 1)
+
+ /** Mask for the BREAK handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
+ * from the device to the host, to indicate that the BREAK line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_BREAK (1 << 2)
+
+ /** Mask for the RING handshake line for use with the \ref CDC_NOTIF_SerialState class-specific notification
+ * from the device to the host, to indicate that the RING line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_RING (1 << 3)
+
+ /** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
+ * to indicate that a framing error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_FRAMEERROR (1 << 4)
+
+ /** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
+ * to indicate that a parity error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_PARITYERROR (1 << 5)
+
+ /** Mask for use with the \ref CDC_NOTIF_SerialState class-specific notification from the device to the host,
+ * to indicate that a data overrun error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_OVERRUNERROR (1 << 6)
+ //@}
+
+ /** Macro to define a CDC class-specific functional descriptor. CDC functional descriptors have a
+ * uniform structure but variable sized data payloads, thus cannot be represented accurately by
+ * a single \c typedef \c struct. A macro is used instead so that functional descriptors can be created
+ * easily by specifying the size of the payload. This allows \c sizeof() to work correctly.
+ *
+ * \param[in] DataSize Size in bytes of the CDC functional descriptor's data payload.
+ */
+ #define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \
+ struct \
+ { \
+ USB_Descriptor_Header_t Header; \
+ uint8_t SubType; \
+ uint8_t Data[DataSize]; \
+ }
+
+ /* Enums: */
+ /** Enum for possible Class, Subclass and Protocol values of device and interface descriptors relating to the CDC
+ * device class.
+ */
+ enum CDC_Descriptor_ClassSubclassProtocol_t
+ {
+ CDC_CSCP_CDCClass = 0x02, /**< Descriptor Class value indicating that the device or interface
+ * belongs to the CDC class.
+ */
+ CDC_CSCP_NoSpecificSubclass = 0x00, /**< Descriptor Subclass value indicating that the device or interface
+ * belongs to no specific subclass of the CDC class.
+ */
+ CDC_CSCP_ACMSubclass = 0x02, /**< Descriptor Subclass value indicating that the device or interface
+ * belongs to the Abstract Control Model CDC subclass.
+ */
+ CDC_CSCP_ATCommandProtocol = 0x01, /**< Descriptor Protocol value indicating that the device or interface
+ * belongs to the AT Command protocol of the CDC class.
+ */
+ CDC_CSCP_NoSpecificProtocol = 0x00, /**< Descriptor Protocol value indicating that the device or interface
+ * belongs to no specific protocol of the CDC class.
+ */
+ CDC_CSCP_VendorSpecificProtocol = 0xFF, /**< Descriptor Protocol value indicating that the device or interface
+ * belongs to a vendor-specific protocol of the CDC class.
+ */
+ CDC_CSCP_CDCDataClass = 0x0A, /**< Descriptor Class value indicating that the device or interface
+ * belongs to the CDC Data class.
+ */
+ CDC_CSCP_NoDataSubclass = 0x00, /**< Descriptor Subclass value indicating that the device or interface
+ * belongs to no specific subclass of the CDC data class.
+ */
+ CDC_CSCP_NoDataProtocol = 0x00, /**< Descriptor Protocol value indicating that the device or interface
+ * belongs to no specific protocol of the CDC data class.
+ */
+ };
+
+ /** Enum for the CDC class specific control requests that can be issued by the USB bus host. */
+ enum CDC_ClassRequests_t
+ {
+ CDC_REQ_SendEncapsulatedCommand = 0x00, /**< CDC class-specific request to send an encapsulated command to the device. */
+ CDC_REQ_GetEncapsulatedResponse = 0x01, /**< CDC class-specific request to retrieve an encapsulated command response from the device. */
+ CDC_REQ_SetLineEncoding = 0x20, /**< CDC class-specific request to set the current virtual serial port configuration settings. */
+ CDC_REQ_GetLineEncoding = 0x21, /**< CDC class-specific request to get the current virtual serial port configuration settings. */
+ CDC_REQ_SetControlLineState = 0x22, /**< CDC class-specific request to set the current virtual serial port handshake line states. */
+ CDC_REQ_SendBreak = 0x23, /**< CDC class-specific request to send a break to the receiver via the carrier channel. */
+ };
+
+ /** Enum for the CDC class specific notification requests that can be issued by a CDC device to a host. */
+ enum CDC_ClassNotifications_t
+ {
+ CDC_NOTIF_SerialState = 0x20, /**< Notification type constant for a change in the virtual serial port
+ * handshake line states, for use with a \ref USB_Request_Header_t
+ * notification structure when sent to the host via the CDC notification
+ * endpoint.
+ */
+ };
+
+ /** Enum for the CDC class specific interface descriptor subtypes. */
+ enum CDC_DescriptorSubtypes_t
+ {
+ CDC_DSUBTYPE_CSInterface_Header = 0x00, /**< CDC class-specific Header functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_CallManagement = 0x01, /**< CDC class-specific Call Management functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_ACM = 0x02, /**< CDC class-specific Abstract Control Model functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_DirectLine = 0x03, /**< CDC class-specific Direct Line functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_TelephoneRinger = 0x04, /**< CDC class-specific Telephone Ringer functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_TelephoneCall = 0x05, /**< CDC class-specific Telephone Call functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_Union = 0x06, /**< CDC class-specific Union functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_CountrySelection = 0x07, /**< CDC class-specific Country Selection functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_TelephoneOpModes = 0x08, /**< CDC class-specific Telephone Operation Modes functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_USBTerminal = 0x09, /**< CDC class-specific USB Terminal functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_NetworkChannel = 0x0A, /**< CDC class-specific Network Channel functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_ProtocolUnit = 0x0B, /**< CDC class-specific Protocol Unit functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_ExtensionUnit = 0x0C, /**< CDC class-specific Extension Unit functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_MultiChannel = 0x0D, /**< CDC class-specific Multi-Channel Management functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_CAPI = 0x0E, /**< CDC class-specific Common ISDN API functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_Ethernet = 0x0F, /**< CDC class-specific Ethernet functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_ATM = 0x10, /**< CDC class-specific Asynchronous Transfer Mode functional descriptor. */
+ };
+
+ /** Enum for the possible line encoding formats of a virtual serial port. */
+ enum CDC_LineEncodingFormats_t
+ {
+ CDC_LINEENCODING_OneStopBit = 0, /**< Each frame contains one stop bit. */
+ CDC_LINEENCODING_OneAndAHalfStopBits = 1, /**< Each frame contains one and a half stop bits. */
+ CDC_LINEENCODING_TwoStopBits = 2, /**< Each frame contains two stop bits. */
+ };
+
+ /** Enum for the possible line encoding parity settings of a virtual serial port. */
+ enum CDC_LineEncodingParity_t
+ {
+ CDC_PARITY_None = 0, /**< No parity bit mode on each frame. */
+ CDC_PARITY_Odd = 1, /**< Odd parity bit mode on each frame. */
+ CDC_PARITY_Even = 2, /**< Even parity bit mode on each frame. */
+ CDC_PARITY_Mark = 3, /**< Mark parity bit mode on each frame. */
+ CDC_PARITY_Space = 4, /**< Space parity bit mode on each frame. */
+ };
+
+ /* Type Defines: */
+ /** \brief CDC class-specific Functional Header Descriptor (LUFA naming conventions).
+ *
+ * Type define for a CDC class-specific functional header descriptor. This indicates to the host that the device
+ * contains one or more CDC functional data descriptors, which give the CDC interface's capabilities and configuration.
+ * See the CDC class specification for more details.
+ *
+ * \see \ref USB_CDC_StdDescriptor_FunctionalHeader_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
+ */
+ typedef struct
+ {
+ 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_Header.
+ */
+ uint16_t CDCSpecification; /**< Version number of the CDC specification implemented by the device,
+ * encoded in BCD format.
+ *
+ * \see \ref VERSION_BCD() utility macro.
+ */
+ } ATTR_PACKED USB_CDC_Descriptor_FunctionalHeader_t;
+
+ /** \brief CDC class-specific Functional Header Descriptor (USB-IF naming conventions).
+ *
+ * Type define for a CDC class-specific functional header descriptor. This indicates to the host that the device
+ * contains one or more CDC functional data descriptors, which give the CDC interface's capabilities and configuration.
+ * See the CDC class specification for more details.
+ *
+ * \see \ref USB_CDC_Descriptor_FunctionalHeader_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_Header.
+ */
+ uint16_t bcdCDC; /**< Version number of the CDC specification implemented by the device, encoded in BCD format.
+ *
+ * \see \ref VERSION_BCD() utility macro.
+ */
+ } ATTR_PACKED USB_CDC_StdDescriptor_FunctionalHeader_t;
+
+ /** \brief CDC class-specific Functional ACM Descriptor (LUFA naming conventions).
+ *
+ * Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface
+ * supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.
+ *
+ * \see \ref USB_CDC_StdDescriptor_FunctionalACM_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
+ */
+ typedef struct
+ {
+ 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_ACM.
+ */
+ uint8_t Capabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
+ * this should be set to a fixed value of \c 0x06 - for other capabilities, refer
+ * to the CDC ACM specification.
+ */
+ } ATTR_PACKED USB_CDC_Descriptor_FunctionalACM_t;
+
+ /** \brief CDC class-specific Functional ACM Descriptor (USB-IF naming conventions).
+ *
+ * Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface
+ * supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.
+ *
+ * \see \ref USB_CDC_Descriptor_FunctionalACM_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_ACM.
+ */
+ uint8_t bmCapabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
+ * this should be set to a fixed value of 0x06 - for other capabilities, refer
+ * to the CDC ACM specification.
+ */
+ } ATTR_PACKED USB_CDC_StdDescriptor_FunctionalACM_t;
+
+ /** \brief CDC class-specific Functional Union Descriptor (LUFA 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_StdDescriptor_FunctionalUnion_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
+ */
+ typedef struct
+ {
+ 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
+
+/** @} */
+
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