+++ /dev/null
-/*
- 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 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_Dependencies Module Source Dependencies
- * The following files must be built with any user project that uses this module:
- * - LUFA/Drivers/USB/Class/Host/MassStorage.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
- *
- * \section Sec_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/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: */
- /* 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
- {
- const struct
- {
- uint8_t DataINPipeNumber; /**< Pipe number of the Mass Storage interface's IN data pipe. */
- bool DataINPipeDoubleBank; /**< Indicates if the Mass Storage interface's IN data pipe should use double banking. */
-
- uint8_t DataOUTPipeNumber; /**< Pipe number of the Mass Storage interface's OUT data pipe. */
- bool DataOUTPipeDoubleBank; /**< Indicates if the Mass Storage interface's OUT data pipe should use double banking. */
- } 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. */
-
- uint16_t DataINPipeSize; /**< Size in bytes of the Mass Storage interface's IN data pipe. */
- uint16_t DataOUTPipeSize; /**< Size in bytes of the Mass Storage interface's OUT data pipe. */
-
- 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] ConfigDescriptorData 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* ConfigDescriptorData) 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
-
-/** @} */
-
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