- /* Macros: */\r
- /** Mass Storage Class specific request to reset the Mass Storage interface, ready for the next command. */\r
- #define REQ_MassStorageReset 0xFF\r
-\r
- /** Mass Storage Class specific request to retrieve the total number of Logical Units (drives) in the SCSI device. */\r
- #define REQ_GetMaxLUN 0xFE\r
- \r
- /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */\r
- #define MS_CBW_SIGNATURE 0x43425355UL\r
-\r
- /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */\r
- #define MS_CSW_SIGNATURE 0x53425355UL\r
- \r
- /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */\r
- #define MS_COMMAND_DIR_DATA_OUT (0 << 7)\r
-\r
- /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from device-to-host. */\r
- #define MS_COMMAND_DIR_DATA_IN (1 << 7)\r
-\r
- /* Type defines: */\r
- /** Type define for a Command Block Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */\r
- typedef struct\r
- {\r
- uint32_t Signature; /**< Command block signature, must be CBW_SIGNATURE to indicate a valid Command Block */\r
- uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */\r
- uint32_t DataTransferLength; /** Length of the optional data portion of the issued command, in bytes */\r
- uint8_t Flags; /**< Command block flags, indicating command data direction */\r
- uint8_t LUN; /**< Logical Unit number this command is issued to */\r
- uint8_t SCSICommandLength; /**< Length of the issued SCSI command within the SCSI command data array */\r
- uint8_t SCSICommandData[16]; /**< Issued SCSI command in the Command Block */\r
- } CommandBlockWrapper_t;\r
- \r
- /** Type define for a Command Status Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */\r
- typedef struct\r
- {\r
- uint32_t Signature; /**< Status block signature, must be CSW_SIGNATURE to indicate a valid Command Status */\r
- uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */\r
- uint32_t DataTransferResidue; /**< Number of bytes of data not processed in the SCSI command */\r
- uint8_t Status; /**< Status code of the issued command - a value from the MassStorage_CommandStatusCodes_t enum */\r
- } CommandStatusWrapper_t;\r
- \r
- /* Enums: */\r
- /** Enum for the possible command status wrapper return status codes. */\r
- enum MassStorage_CommandStatusCodes_t\r
- {\r
- SCSI_Command_Pass = 0, /**< Command completed with no error */\r
- SCSI_Command_Fail = 1, /**< Command failed to complete - host may check the exact error via a SCSI REQUEST SENSE command */\r
- SCSI_Phase_Error = 2 /**< Command failed due to being invalid in the current phase */\r
- };\r
- \r
- /* Type Defines: */\r
- /** Type define for the virtual serial port line encoding settings, for storing the current USART configuration\r
- * as set by the host via a class specific request.\r
- */\r
- typedef struct\r
- {\r
- uint8_t InterfaceNumber; /**< Interface number of the Mass Storage interface within the device */\r
-\r
- uint8_t DataINEndpointNumber; /**< Endpoint number of the Mass Storage interface's IN data endpoint */\r
- uint16_t DataINEndpointSize; /**< Size in bytes of the Mass Storage interface's IN data endpoint */\r
-\r
- uint8_t DataOUTEndpointNumber; /**< Endpoint number of the Mass Storage interface's OUT data endpoint */\r
- uint16_t DataOUTEndpointSize; /**< Size in bytes of the Mass Storage interface's OUT data endpoint */\r
-\r
- uint8_t TotalLUNs;\r
-\r
- CommandBlockWrapper_t CommandBlock;\r
- CommandStatusWrapper_t CommandStatus;\r
-\r
- bool IsMassStoreReset;\r
- } USB_ClassInfo_MS_t;\r
+ /* Public Interface - May be used in end-application: */\r
+ /* Function Prototypes: */\r
+ /** Configures the endpoints of a given Mass Storage interface, ready for use. This should be linked to the library\r
+ * \ref EVENT_USB_ConfigurationChanged() event so that the endpoints are configured when the configuration\r
+ * containing the given Mass Storage interface is selected.\r
+ *\r
+ * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state.\r
+ *\r
+ * \return Boolean true if the endpoints were sucessfully configured, false otherwise\r
+ */\r
+ bool MS_Device_ConfigureEndpoints(USB_ClassInfo_MS_t* MSInterfaceInfo);\r
+ \r
+ /** Processes incomming control requests from the host, that are directed to the given Mass Storage class interface. This should be\r
+ * linked to the library \ref EVENT_USB_UnhandledControlPacket() event.\r
+ *\r
+ * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state.\r
+ */ \r
+ void MS_Device_ProcessControlPacket(USB_ClassInfo_MS_t* MSInterfaceInfo);\r
+\r
+ /** General management task for a given Mass Storage class interface, required for the correct operation of the interface. This should\r
+ * be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().\r
+ *\r
+ * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage configuration and state.\r
+ */\r
+ void MS_Device_USBTask(USB_ClassInfo_MS_t* MSInterfaceInfo);\r
+ \r
+ /** Mass Storage class driver callback for the user processing of a received SCSI command. This callback will fire each time the\r
+ * host sends a SCSI command which requires processing by the user application. Inside this callback the user is responsible\r
+ * for the processing of the received SCSI command from the host. The SCSI command is available in the CommandBlock structure\r
+ * inside the Mass Storage class state structure passed as a parameter to the callback function.\r
+ *\r
+ * \param MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state.\r
+ *\r
+ * \return Boolean true if the SCSI command was successfully processed, false otherwise\r
+ */\r
+ bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_t* MSInterfaceInfo);\r
projects / pub / USBasp.git / blobdiff