160 lines
7 KiB
C
160 lines
7 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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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 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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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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/** \ingroup Group_USBClassCDC
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* @defgroup Group_USBClassCDCHost CDC Class Host Mode Driver
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*
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* \section Module Description
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* Host Mode USB Class driver framework interface, for the CDC USB Class driver.
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*
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* @{
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*/
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#ifndef __CDC_CLASS_HOST_H__
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#define __CDC_CLASS_HOST_H__
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/* Includes: */
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#include "../../USB.h"
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#include "../Common/CDC.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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/* Public Interface - May be used in end-application: */
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/* Type Defines: */
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/** Class state structure. An instance of this structure should be made within the user application,
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* and passed to each of the CDC class driver functions as the CDCInterfaceInfo parameter. This
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* stores each CDC interface's configuration and state information.
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*/
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typedef struct
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{
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const struct
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{
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uint8_t DataINPipeNumber; /**< Pipe number of the CDC interface's IN data pipe */
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uint8_t DataOUTPipeNumber; /**< Pipe number of the CDC interface's OUT data pipe */
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uint8_t NotificationPipeNumber; /**< Pipe number of the CDC interface's IN notification endpoint, if used */
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} Config; /**< Config data for the USB class interface within the device. All elements in this section
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* <b>must</b> be set or the interface will fail to enumerate and operate correctly.
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*/
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struct
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{
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uint8_t ControlInterfaceNumber; /**< Interface number of the CDC control interface within the device */
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uint16_t DataINPipeSize; /**< Size in bytes of the CDC interface's IN data pipe */
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uint16_t DataOUTPipeSize; /**< Size in bytes of the CDC interface's OUT data pipe */
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uint16_t NotificationPipeSize; /**< Size in bytes of the CDC interface's IN notification endpoint, if used */
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struct
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{
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uint8_t HostToDevice; /**< Control line states from the host to device, as a set of CDC_CONTROL_LINE_OUT_*
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* masks.
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*/
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uint8_t DeviceToHost; /**< Control line states from the device to host, as a set of CDC_CONTROL_LINE_IN_*
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* masks.
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*/
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} ControlLineStates;
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struct
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{
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bool Active; /**< Indicates if the interface is currently active, i.e. attached to the connected device */
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uint32_t BaudRateBPS; /**< Baud rate of the virtual serial port, in bits per second */
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uint8_t CharFormat; /**< Character format of the virtual serial port, a value from the
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* CDCDevice_CDC_LineCodingFormats_t enum
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*/
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uint8_t ParityType; /**< Parity setting of the virtual serial port, a value from the
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* CDCDevice_LineCodingParity_t enum
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*/
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uint8_t DataBits; /**< Bits of data per character of the virtual serial port */
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} LineEncoding;
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} State; /**< State data for the USB class interface within the device. All elements in this section
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* <b>may</b> be set to initial values, but may also be ignored to default to sane values when
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* the interface is enumerated.
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*/
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} USB_ClassInfo_CDC_Host_t;
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/* Enums: */
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typedef enum
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{
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CDC_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully */
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CDC_ENUMERROR_ControlError = 1, /**< A control request to the device failed to complete successfully */
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CDC_ENUMERROR_DescriptorTooLarge = 2, /**< The device's Configuration Descriptor is too large to process */
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CDC_ENUMERROR_InvalidConfigDataReturned = 3, /**< The device returned an invalid Configuration Descriptor */
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CDC_ENUMERROR_NoCDCInterfaceFound = 4, /**< A compatible CDC interface was not found in the device's Configuration Descriptor */
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CDC_ENUMERROR_NoEndpointFound = 5, /**< Compatible CDC endpoints were not found in the device's CDC interface */
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} CDCHost_EnumerationFailure_ErrorCodes_t;
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/* Function Prototypes: */
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void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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/* Private Interface - For use in library only: */
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#if !defined(__DOXYGEN__)
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/* Macros: */
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#define CDC_CONTROL_CLASS 0x02
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#define CDC_CONTROL_SUBCLASS 0x02
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#define CDC_CONTROL_PROTOCOL 0x01
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#define CDC_DATA_CLASS 0x0A
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#define CDC_DATA_SUBCLASS 0x00
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#define CDC_DATA_PROTOCOL 0x00
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#define CDC_FOUND_DATAPIPE_IN (1 << 0)
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#define CDC_FOUND_DATAPIPE_OUT (1 << 1)
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#define CDC_FOUND_DATAPIPE_NOTIFICATION (1 << 2)
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/* Function Prototypes: */
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#if defined(INCLUDE_FROM_CDC_CLASS_HOST_C)
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static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* CurrentDescriptor);
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static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor);
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static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescriptor);
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#endif
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void EVENT_CDC_Host_ControLineStateChanged(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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void CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, char* Data, uint16_t Length);
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void CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint8_t Data);
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uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
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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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