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87 lines
2.6 KiB
87 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#ifndef __LINUX_USB_STORAGE_H |
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#define __LINUX_USB_STORAGE_H |
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/* |
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* linux/usb/storage.h |
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* |
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* Copyright Matthew Wilcox for Intel Corp, 2010 |
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* |
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* This file contains definitions taken from the |
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* USB Mass Storage Class Specification Overview |
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* |
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* Distributed under the terms of the GNU GPL, version two. |
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*/ |
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/* Storage subclass codes */ |
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#define USB_SC_RBC 0x01 /* Typically, flash devices */ |
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#define USB_SC_8020 0x02 /* CD-ROM */ |
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#define USB_SC_QIC 0x03 /* QIC-157 Tapes */ |
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#define USB_SC_UFI 0x04 /* Floppy */ |
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#define USB_SC_8070 0x05 /* Removable media */ |
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#define USB_SC_SCSI 0x06 /* Transparent */ |
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#define USB_SC_LOCKABLE 0x07 /* Password-protected */ |
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#define USB_SC_ISD200 0xf0 /* ISD200 ATA */ |
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#define USB_SC_CYP_ATACB 0xf1 /* Cypress ATACB */ |
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#define USB_SC_DEVICE 0xff /* Use device's value */ |
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/* Storage protocol codes */ |
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#define USB_PR_CBI 0x00 /* Control/Bulk/Interrupt */ |
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#define USB_PR_CB 0x01 /* Control/Bulk w/o interrupt */ |
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#define USB_PR_BULK 0x50 /* bulk only */ |
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#define USB_PR_UAS 0x62 /* USB Attached SCSI */ |
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#define USB_PR_USBAT 0x80 /* SCM-ATAPI bridge */ |
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#define USB_PR_EUSB_SDDR09 0x81 /* SCM-SCSI bridge for SDDR-09 */ |
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#define USB_PR_SDDR55 0x82 /* SDDR-55 (made up) */ |
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#define USB_PR_DPCM_USB 0xf0 /* Combination CB/SDDR09 */ |
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#define USB_PR_FREECOM 0xf1 /* Freecom */ |
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#define USB_PR_DATAFAB 0xf2 /* Datafab chipsets */ |
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#define USB_PR_JUMPSHOT 0xf3 /* Lexar Jumpshot */ |
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#define USB_PR_ALAUDA 0xf4 /* Alauda chipsets */ |
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#define USB_PR_KARMA 0xf5 /* Rio Karma */ |
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#define USB_PR_DEVICE 0xff /* Use device's value */ |
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/* |
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* Bulk only data structures |
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*/ |
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/* command block wrapper */ |
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struct bulk_cb_wrap { |
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__le32 Signature; /* contains 'USBC' */ |
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__u32 Tag; /* unique per command id */ |
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__le32 DataTransferLength; /* size of data */ |
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__u8 Flags; /* direction in bit 0 */ |
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__u8 Lun; /* LUN normally 0 */ |
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__u8 Length; /* length of the CDB */ |
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__u8 CDB[16]; /* max command */ |
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}; |
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#define US_BULK_CB_WRAP_LEN 31 |
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#define US_BULK_CB_SIGN 0x43425355 /* spells out 'USBC' */ |
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#define US_BULK_FLAG_IN (1 << 7) |
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#define US_BULK_FLAG_OUT 0 |
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/* command status wrapper */ |
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struct bulk_cs_wrap { |
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__le32 Signature; /* contains 'USBS' */ |
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__u32 Tag; /* same as original command */ |
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__le32 Residue; /* amount not transferred */ |
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__u8 Status; /* see below */ |
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}; |
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#define US_BULK_CS_WRAP_LEN 13 |
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#define US_BULK_CS_SIGN 0x53425355 /* spells out 'USBS' */ |
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#define US_BULK_STAT_OK 0 |
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#define US_BULK_STAT_FAIL 1 |
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#define US_BULK_STAT_PHASE 2 |
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/* bulk-only class specific requests */ |
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#define US_BULK_RESET_REQUEST 0xff |
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#define US_BULK_GET_MAX_LUN 0xfe |
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#endif
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