From 74298f8ca11dc8d3b0359d1d4e124d6494c3eeac Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 10 Apr 2009 01:15:42 +0200 Subject: * digital/avr/modules/usb: - imported LUFA. --- .../usb/lufa/Demos/MassStorage/MassStorage.h | 159 +++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 digital/avr/modules/usb/lufa/Demos/MassStorage/MassStorage.h (limited to 'digital/avr/modules/usb/lufa/Demos/MassStorage/MassStorage.h') diff --git a/digital/avr/modules/usb/lufa/Demos/MassStorage/MassStorage.h b/digital/avr/modules/usb/lufa/Demos/MassStorage/MassStorage.h new file mode 100644 index 00000000..4f0e5b58 --- /dev/null +++ b/digital/avr/modules/usb/lufa/Demos/MassStorage/MassStorage.h @@ -0,0 +1,159 @@ +/* + 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. +*/ + +/** \file + * + * Header file for MassStorage.c. + */ + +#ifndef _MASS_STORAGE_H_ +#define _MASS_STORAGE_H_ + + /* Includes: */ + #include + #include + + #include "Descriptors.h" + #include "SCSI.h" + #include "DataflashManager.h" + + #include // Library Version Information + #include // PROGMEM tags readable by the ButtLoad project + #include // USB Functionality + #include // LEDs driver + #include // Dataflash chip driver + #include // Simple scheduler for task management + + /* 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 + + /** Maximum length of a SCSI command which can be issued by the device or host in a Mass Storage bulk wrapper. */ + #define MAX_SCSI_COMMAND_LENGTH 16 + + /** Total number of Logical Units (drives) in the device. By default, the total device capacity is shared equally between + * each drive - this can be set to any positive non-zero amount. */ + #define TOTAL_LUNS 2 + + /** Blocks in each LUN, calculated from the total capacity divided by the total number of Logical Units in the device. */ + #define LUN_MEDIA_BLOCKS (VIRTUAL_MEMORY_BLOCKS / TOTAL_LUNS) + + /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */ + #define CBW_SIGNATURE 0x43425355UL + + /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */ + #define CSW_SIGNATURE 0x53425355UL + + /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */ + #define COMMAND_DIRECTION_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 COMMAND_DIRECTION_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[MAX_SCSI_COMMAND_LENGTH]; /**< 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 + { + Command_Pass = 0, /**< Command completed with no error */ + Command_Fail = 1, /**< Command failed to complete - host may check the exact error via a SCSI REQUEST SENSE command */ + Phase_Error = 2 /**< Command failed due to being invalid in the current phase */ + }; + + /** Enum for the possible status codes for passing to the UpdateStatus() function. */ + enum MassStorage_StatusCodes_t + { + Status_USBNotReady = 0, /**< USB is not ready (disconnected from a USB host) */ + Status_USBEnumerating = 1, /**< USB interface is enumerating */ + Status_USBReady = 2, /**< USB interface is connected and ready */ + Status_CommandBlockError = 3, /**< Processing a SCSI command block from the host */ + Status_ProcessingCommandBlock = 4, /**< Error during the processing of a SCSI command block from the host */ + }; + + /* Global Variables: */ + extern CommandBlockWrapper_t CommandBlock; + extern CommandStatusWrapper_t CommandStatus; + extern volatile bool IsMassStoreReset; + + /* Task Definitions: */ + TASK(USB_MassStorage); + + /* Stream Callbacks: */ + STREAM_CALLBACK(AbortOnMassStoreReset); + + /* Event Handlers: */ + /** Indicates that this module will catch the USB_Reset event when thrown by the library. */ + HANDLES_EVENT(USB_Reset); + + /** Indicates that this module will catch the USB_Connect event when thrown by the library. */ + HANDLES_EVENT(USB_Connect); + + /** Indicates that this module will catch the USB_Disconnect event when thrown by the library. */ + HANDLES_EVENT(USB_Disconnect); + + /** Indicates that this module will catch the USB_ConfigurationChanged event when thrown by the library. */ + HANDLES_EVENT(USB_ConfigurationChanged); + + /** Indicates that this module will catch the USB_UnhandledControlPacket event when thrown by the library. */ + HANDLES_EVENT(USB_UnhandledControlPacket); + + /* Function Prototypes: */ + void UpdateStatus(uint8_t CurrentStatus); + + #if defined(INCLUDE_FROM_MASSSTORAGE_C) + static bool ReadInCommandBlock(void); + static void ReturnCommandStatus(void); + #endif + +#endif -- cgit v1.2.3