X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/0d3a3f7536b6b2f22858f82541c383aa3759aa15..3dce79d68ccc50ee1007e485396826762b6965b5:/LUFA/Drivers/USB/Class/Host/StillImage.h diff --git a/LUFA/Drivers/USB/Class/Host/StillImage.h b/LUFA/Drivers/USB/Class/Host/StillImage.h index 5f3b389a3..6222cf595 100644 --- a/LUFA/Drivers/USB/Class/Host/StillImage.h +++ b/LUFA/Drivers/USB/Class/Host/StillImage.h @@ -54,8 +54,90 @@ #endif /* Public Interface - May be used in end-application: */ + /* Type Defines: */ + typedef struct + { + const struct + { + uint8_t DataINPipeNumber; /**< Pipe number of the Still Image interface's IN data pipe */ + uint8_t DataOUTPipeNumber; /**< Pipe number of the Still Image interface's OUT data pipe */ + uint8_t EventsPipeNumber; /**< Pipe number of the Still Image interface's IN events endpoint, if used */ + } Config; /**< Config data for the USB class interface within the device. All elements in this section + * must be set or the interface will fail to enumerate and operate correctly. + */ + struct + { + bool Active; /**< Indicates if the current interface instance is connected to an attached device, valid + * after \ref HID_Host_ConfigurePipes() is called and the Host state machine is in the + * Configured state + */ + + uint16_t DataINPipeSize; /**< Size in bytes of the Still Image interface's IN data pipe */ + uint16_t DataOUTPipeSize; /**< Size in bytes of the Still Image interface's OUT data pipe */ + uint16_t EventsPipeSize; /**< Size in bytes of the Still Image interface's IN events pipe */ + } State; /**< State data for the USB class interface within the device. All elements in this section + * may be set to initial values, but may also be ignored to default to sane values when + * the interface is enumerated. + */ + } USB_ClassInfo_SI_Host_t; + + /* Enums: */ + /** Enum for the possible error codes returned by the \ref SI_Host_ConfigurePipes() function. */ + enum SIHost_EnumerationFailure_ErrorCodes_t + { + SI_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully */ + SI_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor */ + SI_ENUMERROR_NoSIInterfaceFound = 2, /**< A compatible Still Image interface was not found in the device's + * Configuration Descriptor + */ + SI_ENUMERROR_EndpointsNotFound = 3, /**< Compatible Still Image data endpoints were not found in the + * device's Still Image interface + */ + }; + /* Function Prototypes: */ - + /** General management task for a given Still Image host class interface, required for the correct operation of the + * interface. This should be called frequently in the main program loop, before the master USB management task + * \ref USB_USBTask(). + * + * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state + */ + void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + + /** Host interface configuration routine, to configure a given Still Image host interface instance using the + * Configuration Descriptor read from an attached USB device. This function automatically updates the given Still + * Image Host instance's state values and configures the pipes required to communicate with the interface if it is + * found within the device. This should be called once after the stack has enumerated the attached device, while + * the host state machine is in the Addressed state. + * + * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state + * \param[in] ConfigDescriptorLength Length of the attached device's Configuration Descriptor + * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor + * + * \return A value from the \ref SIHost_EnumerationFailure_ErrorCodes_t enum + */ + uint8_t SI_Host_ConfigurePipes(USB_ClassInfo_SI_Host_t* SIInterfaceInfo, uint16_t ConfigDescriptorSize, + uint8_t* ConfigDescriptorData) ATTR_NON_NULL_PTR_ARG(1, 3); + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Macros: */ + #define STILL_IMAGE_CLASS 0x06 + #define STILL_IMAGE_SUBCLASS 0x01 + #define STILL_IMAGE_PROTOCOL 0x01 + + #define SI_FOUND_EVENTS_IN (1 << 0) + #define SI_FOUND_DATAPIPE_IN (1 << 1) + #define SI_FOUND_DATAPIPE_OUT (1 << 2) + + /* Function Prototypes: */ + #if defined(INCLUDE_FROM_SI_CLASS_HOST_C) + static uint8_t DComp_SI_Host_NextSIInterface(void* CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); + static uint8_t DComp_SI_Host_NextSIInterfaceEndpoint(void* CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); + #endif + #endif + /* Disable C linkage for C++ Compilers: */ #if defined(__cplusplus) }