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Diffstat (limited to 'LUFA/Drivers/USB/Class/Device/MassStorage.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Device/MassStorage.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/MassStorage.h b/LUFA/Drivers/USB/Class/Device/MassStorage.h new file mode 100644 index 0000000..31d3ba9 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Device/MassStorage.h @@ -0,0 +1,177 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 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 <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
+ *
+ * \section 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"
+
+ #include <string.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
+
+ #if defined(__INCLUDE_FROM_MASSSTORAGE_DEVICE_C) && defined(NO_STREAM_CALLBACKS)
+ #error The NO_STREAM_CALLBACKS compile time option cannot be used in projects using the library Class drivers.
+ #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
+ * 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
+ * <b>must</b> 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.
+ *
+ * \note The endpoint index numbers as given in the interface's configuration structure must not overlap with any other
+ * interface, or endpoint bank corruption will occur. Gaps in the allocated endpoint numbers or non-sequential indexes
+ * within a single interface is allowed, but no two interfaces of any type have have interleaved endpoint indexes.
+ *
+ * \param[in,out] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state.
+ *
+ * \return Boolean true if the endpoints were successfully configured, 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 true if the SCSI command was successfully processed, 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);
+ static uint8_t StreamCallback_MS_Device_AbortOnMassStoreReset(void);
+ #endif
+
+ #endif
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
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