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