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Diffstat (limited to 'LUFA/Drivers/USB/Class/Common/CDCClassCommon.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Common/CDCClassCommon.h | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Common/CDCClassCommon.h b/LUFA/Drivers/USB/Class/Common/CDCClassCommon.h new file mode 100644 index 0000000000..1ad49eca14 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Common/CDCClassCommon.h @@ -0,0 +1,391 @@ +/* + 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 + +/** @} */ + |