X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/ccf5bd19f2d750440043b242cf26fcda09b69cce..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Device/MassStorage.h diff --git a/LUFA/Drivers/USB/Class/Device/MassStorage.h b/LUFA/Drivers/USB/Class/Device/MassStorage.h index 0ecc4aa1d..6f0539e54 100644 --- a/LUFA/Drivers/USB/Class/Device/MassStorage.h +++ b/LUFA/Drivers/USB/Class/Device/MassStorage.h @@ -1,187 +1,166 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, 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 disclaim 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. -*/ - -/** \ingroup Group_USBDeviceClassDrivers - * @defgroup Group_USBClassMSDevice Mass Storage Device Class Driver - LUFA/Drivers/Class/Device/MassStorage.h - * - * \section Sec_Dependencies Module Source Dependencies - * The following files must be built with any user project that uses this module: - * - LUFA/Drivers/USB/Class/Device/MassStorage.c - * - * \section Module Description - * Functions, macros, variables, enums and types related to the management of USB Mass Storage Class interfaces - * within a USB device. - * - * @{ - */ - -#ifndef _MS_CLASS_H_ -#define _MS_CLASS_H_ - - /* Includes: */ - #include "../../USB.h" - - #include - - /* Enable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - extern "C" { - #endif - - /* Macros: */ - /** Mass Storage Class specific request to reset the Mass Storage interface, ready for the next command. */ - #define REQ_MassStorageReset 0xFF - - /** Mass Storage Class specific request to retrieve the total number of Logical Units (drives) in the SCSI device. */ - #define REQ_GetMaxLUN 0xFE - - /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */ - #define MS_CBW_SIGNATURE 0x43425355UL - - /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */ - #define MS_CSW_SIGNATURE 0x53425355UL - - /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */ - #define MS_COMMAND_DIR_DATA_OUT (0 << 7) - - /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from device-to-host. */ - #define MS_COMMAND_DIR_DATA_IN (1 << 7) - - /* Type defines: */ - /** Type define for a Command Block Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */ - typedef struct - { - uint32_t Signature; /**< Command block signature, must be CBW_SIGNATURE to indicate a valid Command Block */ - uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */ - uint32_t DataTransferLength; /** Length of the optional data portion of the issued command, in bytes */ - uint8_t Flags; /**< Command block flags, indicating command data direction */ - uint8_t LUN; /**< Logical Unit number this command is issued to */ - uint8_t SCSICommandLength; /**< Length of the issued SCSI command within the SCSI command data array */ - uint8_t SCSICommandData[16]; /**< Issued SCSI command in the Command Block */ - } CommandBlockWrapper_t; - - /** Type define for a Command Status Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */ - typedef struct - { - uint32_t Signature; /**< Status block signature, must be CSW_SIGNATURE to indicate a valid Command Status */ - uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */ - uint32_t DataTransferResidue; /**< Number of bytes of data not processed in the SCSI command */ - uint8_t Status; /**< Status code of the issued command - a value from the MassStorage_CommandStatusCodes_t enum */ - } CommandStatusWrapper_t; - - /* Enums: */ - /** Enum for the possible command status wrapper return status codes. */ - enum MassStorage_CommandStatusCodes_t - { - SCSI_Command_Pass = 0, /**< Command completed with no error */ - SCSI_Command_Fail = 1, /**< Command failed to complete - host may check the exact error via a SCSI REQUEST SENSE command */ - SCSI_Phase_Error = 2 /**< Command failed due to being invalid in the current phase */ - }; - - /* Type Defines: */ - /** Class state structure. An instance of this structure should be made for each Mass Storage interface - * within the user application, and passed to each of the Mass Storage class driver functions as the - * MSInterfaceInfo parameter. The contents of this structure should be set to their correct - * values when used, or ommitted to force the library to use default values. - */ - typedef struct - { - uint8_t InterfaceNumber; /**< Interface number of the Mass Storage interface within the device */ - - uint8_t DataINEndpointNumber; /**< Endpoint number of the Mass Storage interface's IN data endpoint */ - uint16_t DataINEndpointSize; /**< Size in bytes of the Mass Storage interface's IN data endpoint */ - - uint8_t DataOUTEndpointNumber; /**< Endpoint number of the Mass Storage interface's OUT data endpoint */ - uint16_t DataOUTEndpointSize; /**< Size in bytes of the Mass Storage interface's OUT data endpoint */ - - uint8_t TotalLUNs; /**< Total number of logical drives in the Mass Storage interface */ - - CommandBlockWrapper_t CommandBlock; /**< Mass Storage class command block structure, used internally - * by the class driver - */ - CommandStatusWrapper_t CommandStatus; /**< Mass Storage class command status structure, used internally - * by the class driver - */ - - bool IsMassStoreReset; /**< Flag indicating that the host has requested that the Mass Storage interface be reset - * and that all current Mass Storage operations should immediately abort - */ - } USB_ClassInfo_MS_t; - - /* Function Prototypes: */ - #if defined(INCLUDE_FROM_MS_CLASS_C) - static void USB_MS_ReturnCommandStatus(USB_ClassInfo_MS_t* MSInterfaceInfo); - static bool USB_MS_ReadInCommandBlock(USB_ClassInfo_MS_t* MSInterfaceInfo); - static uint8_t StreamCallback_AbortOnMassStoreReset(void); - #endif - - /** Configures the endpoints of a given Mass Storage interface, ready for use. This should be linked to the library - * \ref EVENT_USB_ConfigurationChanged() event so that the endpoints are configured when the configuration - * containing the given Mass Storage interface is selected. - * - * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. - * - * \return Boolean true if the endpoints were sucessfully configured, false otherwise - */ - bool USB_MS_ConfigureEndpoints(USB_ClassInfo_MS_t* MSInterfaceInfo); - - /** Processes incomming control requests from the host, that are directed to the given Mass Storage class interface. This should be - * linked to the library \ref EVENT_USB_UnhandledControlPacket() event. - * - * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. - */ - void USB_MS_ProcessControlPacket(USB_ClassInfo_MS_t* MSInterfaceInfo); - - /** General management task for a given Mass Storage 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 MSInterfaceInfo Pointer to a structure containing a Mass Storage configuration and state. - */ - void USB_MS_USBTask(USB_ClassInfo_MS_t* MSInterfaceInfo); - - /** Mass Storage class driver callback for the user processing of a received SCSI command. This callback will fire each time the - * host sends a SCSI command which requires processing by the user application. Inside this callback the user is responsible - * for the processing of the received SCSI command from the host. The SCSI command is available in the CommandBlock structure - * inside the Mass Storage class state structure passed as a parameter to the callback function. - * - * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. - * - * \return Boolean true if the SCSI command was successfully processed, false otherwise - */ - bool CALLBACK_USB_MS_SCSICommandReceived(USB_ClassInfo_MS_t* MSInterfaceInfo); - - /* Disable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - } - #endif - -#endif - -/** @} */ +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 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 disclaim 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 Device mode driver for the library USB Mass Storage Class driver. + * + * Device mode driver for the library USB Mass Storage 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_USBClassMS + * \defgroup Group_USBClassMSDevice Mass Storage Class Device Mode Driver + * + * \section Sec_Dependencies Module Source Dependencies + * The following files must be built with any user project that uses this module: + * - LUFA/Drivers/USB/Class/Device/MassStorage.c (Makefile source module name: LUFA_SRC_USBCLASS) + * + * \section Sec_ModDescription Module Description + * Device Mode USB Class driver framework interface, for the Mass Storage USB Class driver. + * + * @{ + */ + +#ifndef _MS_CLASS_DEVICE_H_ +#define _MS_CLASS_DEVICE_H_ + + /* Includes: */ + #include "../../USB.h" + #include "../Common/MassStorage.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_MS_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Type Defines: */ + /** \brief Mass Storage Class Device Mode Configuration and State Structure. + * + * Class state structure. An instance of this structure should be made for each Mass Storage interface + * within the user application, and passed to each of the Mass Storage class driver functions as the + * \c MSInterfaceInfo parameter. This stores each Mass Storage interface's configuration and state information. + */ + typedef struct + { + const struct + { + uint8_t InterfaceNumber; /**< Interface number of the Mass Storage interface within the device. */ + + uint8_t DataINEndpointNumber; /**< Endpoint number of the Mass Storage interface's IN data endpoint. */ + uint16_t DataINEndpointSize; /**< Size in bytes of the Mass Storage interface's IN data endpoint. */ + bool DataINEndpointDoubleBank; /**< Indicates if the Mass Storage interface's IN data endpoint should use double banking. */ + + uint8_t DataOUTEndpointNumber; /**< Endpoint number of the Mass Storage interface's OUT data endpoint. */ + uint16_t DataOUTEndpointSize; /**< Size in bytes of the Mass Storage interface's OUT data endpoint. */ + bool DataOUTEndpointDoubleBank; /**< Indicates if the Mass Storage interface's OUT data endpoint should use double banking. */ + + uint8_t TotalLUNs; /**< Total number of logical drives in the Mass Storage interface. */ + } 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 + { + MS_CommandBlockWrapper_t CommandBlock; /**< Mass Storage class command block structure, stores the received SCSI + * command from the host which is to be processed. + */ + MS_CommandStatusWrapper_t CommandStatus; /**< Mass Storage class command status structure, set elements to indicate + * the issued command's success or failure to the host. + */ + volatile bool IsMassStoreReset; /**< Flag indicating that the host has requested that the Mass Storage interface be reset + * and that all current Mass Storage operations should immediately abort. + */ + } State; /**< State data for the USB class interface within the device. All elements in this section + * are reset to their defaults when the interface is enumerated. + */ + } USB_ClassInfo_MS_Device_t; + + /* Function Prototypes: */ + /** Configures the endpoints of a given Mass Storage interface, ready for use. This should be linked to the library + * \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration + * containing the given Mass Storage interface is selected. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. + * + * \return Boolean \c true if the endpoints were successfully configured, \c false otherwise. + */ + bool MS_Device_ConfigureEndpoints(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Processes incoming control requests from the host, that are directed to the given Mass Storage class interface. This should be + * linked to the library \ref EVENT_USB_Device_ControlRequest() event. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. + */ + void MS_Device_ProcessControlRequest(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** General management task for a given Mass Storage 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] MSInterfaceInfo Pointer to a structure containing a Mass Storage configuration and state. + */ + void MS_Device_USBTask(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Mass Storage class driver callback for the user processing of a received SCSI command. This callback will fire each time the + * host sends a SCSI command which requires processing by the user application. Inside this callback the user is responsible + * for the processing of the received SCSI command from the host. The SCSI command is available in the CommandBlock structure + * inside the Mass Storage class state structure passed as a parameter to the callback function. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state. + * + * \return Boolean \c true if the SCSI command was successfully processed, \c false otherwise. + */ + bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Function Prototypes: */ + #if defined(__INCLUDE_FROM_MASSSTORAGE_DEVICE_C) + static void MS_Device_ReturnCommandStatus(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + static bool MS_Device_ReadInCommandBlock(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + #endif + + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ +