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Diffstat (limited to 'lib/lufa/LUFA/Drivers/USB/Class/Host/MassStorageClassHost.h')
| -rw-r--r-- | lib/lufa/LUFA/Drivers/USB/Class/Host/MassStorageClassHost.h | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Drivers/USB/Class/Host/MassStorageClassHost.h b/lib/lufa/LUFA/Drivers/USB/Class/Host/MassStorageClassHost.h new file mode 100644 index 0000000000..348050f8f5 --- /dev/null +++ b/lib/lufa/LUFA/Drivers/USB/Class/Host/MassStorageClassHost.h @@ -0,0 +1,335 @@ +/* + 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 Host mode driver for the library USB Mass Storage Class driver. + * + * Host 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_USBClassMassStorageHost Mass Storage Class Host Mode Driver + * + * \section Sec_USBClassMassStorageHost_Dependencies Module Source Dependencies + * The following files must be built with any user project that uses this module: + * - LUFA/Drivers/USB/Class/Host/MassStorageClassHost.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i> + * + * \section Sec_USBClassMassStorageHost_ModDescription Module Description + * Host Mode USB Class driver framework interface, for the Mass Storage USB Class driver. + * + * @{ + */ + +#ifndef __MS_CLASS_HOST_H__ +#define __MS_CLASS_HOST_H__ + + /* Includes: */ + #include "../../USB.h" + #include "../Common/MassStorageClassCommon.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: */ + /* Macros: */ + /** Error code for some Mass Storage Host functions, indicating a logical (and not hardware) error. */ + #define MS_ERROR_LOGICAL_CMD_FAILED 0x80 + + /* Type Defines: */ + /** \brief Mass Storage Class Host Mode Configuration and State Structure. + * + * Class state structure. An instance of this structure should be made 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 + { + struct + { + USB_Pipe_Table_t DataINPipe; /**< Data IN Pipe configuration table. */ + USB_Pipe_Table_t DataOUTPipe; /**< Data OUT Pipe configuration table. */ + } Config; /**< Config data for the USB class interface within the device. All elements in this section + * <b>must</b> be set or the interface will fail to enumerate and operate correctly. + */ + struct + { + bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid + * after \ref MS_Host_ConfigurePipes() is called and the Host state machine is in the + * Configured state. + */ + uint8_t InterfaceNumber; /**< Interface index of the Mass Storage interface within the attached device. */ + + uint32_t TransactionTag; /**< Current transaction tag for data synchronizing of packets. */ + } State; /**< State data for the USB class interface within the device. All elements in this section + * <b>may</b> be set to initial values, but may also be ignored to default to sane values when + * the interface is enumerated. + */ + } USB_ClassInfo_MS_Host_t; + + /** \brief SCSI Device LUN Capacity Structure. + * + * SCSI capacity structure, to hold the total capacity of the device in both the number + * of blocks in the current LUN, and the size of each block. This structure is filled by + * the device when the \ref MS_Host_ReadDeviceCapacity() function is called. + */ + typedef struct + { + uint32_t Blocks; /**< Number of blocks in the addressed LUN of the device. */ + uint32_t BlockSize; /**< Number of bytes in each block in the addressed LUN. */ + } SCSI_Capacity_t; + + /* Enums: */ + /** Enum for the possible error codes returned by the \ref MS_Host_ConfigurePipes() function. */ + enum MS_Host_EnumerationFailure_ErrorCodes_t + { + MS_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */ + MS_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */ + MS_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible Mass Storage interface was not found in the device's Configuration Descriptor. */ + MS_ENUMERROR_PipeConfigurationFailed = 3, /**< One or more pipes for the specified interface could not be configured correctly. */ + }; + + /* Function Prototypes: */ + /** Host interface configuration routine, to configure a given Mass Storage host interface instance using the + * Configuration Descriptor read from an attached USB device. This function automatically updates the given Mass + * Storage 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] MSInterfaceInfo Pointer to a structure containing an MS Class host configuration and state. + * \param[in] ConfigDescriptorSize 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 MS_Host_EnumerationFailure_ErrorCodes_t enum. + */ + uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); + + /** Sends a MASS STORAGE RESET control request to the attached device, resetting the Mass Storage Interface + * and readying it for the next Mass Storage command. This should be called after a failed SCSI request to + * ensure the attached Mass Storage device is ready to receive the next command. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum. + */ + uint8_t MS_Host_ResetMSInterface(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Sends a GET MAX LUN control request to the attached device, retrieving the index of the highest LUN (Logical + * UNit, a logical drive) in the device. This value can then be used in the other functions of the Mass Storage + * Host mode Class driver to address a specific LUN within the device. + * + * \note Some devices do not support this request, and will STALL it when issued. To get around this, + * on unsupported devices the max LUN index will be reported as zero and no error will be returned + * if the device STALLs the request. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[out] MaxLUNIndex Pointer to a location where the highest LUN index value should be stored. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum. + */ + uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + uint8_t* const MaxLUNIndex) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + /** Retrieves the Mass Storage device's inquiry data for the specified LUN, indicating the device characteristics and + * properties. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[out] InquiryData Location where the read inquiry data should be stored. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED. + */ + uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + SCSI_Inquiry_Response_t* const InquiryData) ATTR_NON_NULL_PTR_ARG(1) + ATTR_NON_NULL_PTR_ARG(3); + + /** Sends a TEST UNIT READY command to the device, to determine if it is ready to accept other SCSI commands. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex) ATTR_NON_NULL_PTR_ARG(1); + + /** Retrieves the total capacity of the attached USB Mass Storage device, in blocks, and block size. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[out] DeviceCapacity Pointer to the location where the capacity information should be stored. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_ReadDeviceCapacity(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + SCSI_Capacity_t* const DeviceCapacity) ATTR_NON_NULL_PTR_ARG(1) + ATTR_NON_NULL_PTR_ARG(3); + + /** Retrieves the device sense data, indicating the current device state and error codes for the previously + * issued command. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[out] SenseData Pointer to the location where the sense information should be stored. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_RequestSense(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + SCSI_Request_Sense_Response_t* const SenseData) ATTR_NON_NULL_PTR_ARG(1) + ATTR_NON_NULL_PTR_ARG(3); + + /** Issues a PREVENT MEDIUM REMOVAL command, to logically (or, depending on the type of device, physically) lock + * the device from removal so that blocks of data on the medium can be read or altered. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[in] PreventRemoval Boolean \c true if the device should be locked from removal, \c false otherwise. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_PreventAllowMediumRemoval(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + const bool PreventRemoval) ATTR_NON_NULL_PTR_ARG(1); + + /** Reads blocks of data from the attached Mass Storage device's medium. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[in] BlockAddress Starting block address within the device to read from. + * \param[in] Blocks Total number of blocks to read. + * \param[in] BlockSize Size in bytes of each block within the device. + * \param[out] BlockBuffer Pointer to where the read data from the device should be stored. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_ReadDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + const uint32_t BlockAddress, + const uint8_t Blocks, + const uint16_t BlockSize, + void* BlockBuffer) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(6); + + /** Writes blocks of data to the attached Mass Storage device's medium. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MSInterfaceInfo Pointer to a structure containing a MS Class host configuration and state. + * \param[in] LUNIndex LUN index within the device the command is being issued to. + * \param[in] BlockAddress Starting block address within the device to write to. + * \param[in] Blocks Total number of blocks to read. + * \param[in] BlockSize Size in bytes of each block within the device. + * \param[in] BlockBuffer Pointer to where the data to write should be sourced from. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum or \ref MS_ERROR_LOGICAL_CMD_FAILED if not ready. + */ + uint8_t MS_Host_WriteDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + const uint32_t BlockAddress, + const uint8_t Blocks, + const uint16_t BlockSize, + const void* BlockBuffer) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(6); + + /* Inline Functions: */ + /** General management task for a given Mass Storage 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] MSInterfaceInfo Pointer to a structure containing an Mass Storage Class host configuration and state. + */ + static inline void MS_Host_USBTask(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE; + static inline void MS_Host_USBTask(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) + { + (void)MSInterfaceInfo; + } + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Macros: */ + #define MS_COMMAND_DATA_TIMEOUT_MS 10000 + + /* Function Prototypes: */ + #if defined(__INCLUDE_FROM_MASSSTORAGE_HOST_C) + static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandBlockWrapper_t* const SCSICommandBlock, + const void* const BufferPtr) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + static uint8_t MS_Host_SendReceiveData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandBlockWrapper_t* const SCSICommandBlock, + void* BufferPtr) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + static uint8_t MS_Host_GetReturnedStatus(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandStatusWrapper_t* const SCSICommandStatus) + ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + static uint8_t DCOMP_MS_Host_NextMSInterface(void* const CurrentDescriptor) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); + static uint8_t DCOMP_MS_Host_NextMSInterfaceEndpoint(void* const CurrentDescriptor) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); + #endif + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + |