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180 lines
7.3 KiB
180 lines
7.3 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 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 disclaim 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 class driver
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* dispatch header located in LUFA/Drivers/USB/Class/CDC.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 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 "../../USB.h"
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#include <string.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/Class/CDC.h instead.
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#endif
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/* Macros: */
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/** CDC class-specific request to get the current virtual serial port configuration settings. */
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#define REQ_GetLineEncoding 0x21
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/** CDC class-specific request to set the current virtual serial port configuration settings. */
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#define REQ_SetLineEncoding 0x20
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/** CDC class-specific request to set the current virtual serial port handshake line states. */
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#define REQ_SetControlLineState 0x22
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/** CDC class-specific request to send a break to the receiver via the carrier channel. */
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#define REQ_SendBreak 0x23
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/** CDC class-specific request to send an encapsulated command to the device. */
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#define REQ_SendEncapsulatedCommand 0x00
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/** CDC class-specific request to retrieve an encapsulated command response from the device. */
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#define REQ_GetEncapsulatedResponse 0x01
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/** Notification type constant for a change in the virtual serial port handshake line states, for
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* use with a USB_Notification_Header_t notification structure when sent to the host via the CDC
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* notification endpoint.
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*/
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#define NOTIF_SerialState 0x20
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/** Mask for the DTR handshake line for use with the 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 REQ_SetControlLineState class-specific request
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* from the host, to indicate that theRTS 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 a 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 a 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 a 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 a 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 a 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 a 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 a 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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/** Macro to define a CDC class-specific functional descriptor. CDC functional descriptors have a
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* uniform structure but variable sized data payloads, thus cannot be represented accurately by
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* a single typedef struct. A macro is used instead so that functional descriptors can be created
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* easily by specifying the size of the payload. This allows sizeof() to work correctly.
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*
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* \param[in] DataSize Size in bytes of the CDC functional descriptor's data payload.
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*/
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#define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \
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struct \
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{ \
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USB_Descriptor_Header_t Header; \
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uint8_t SubType; \
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uint8_t Data[DataSize]; \
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}
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/* Enums: */
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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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/* 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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