1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun #ifndef __LINUX_USB_STORAGE_H 3*4882a593Smuzhiyun #define __LINUX_USB_STORAGE_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * linux/usb/storage.h 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright Matthew Wilcox for Intel Corp, 2010 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * This file contains definitions taken from the 11*4882a593Smuzhiyun * USB Mass Storage Class Specification Overview 12*4882a593Smuzhiyun * 13*4882a593Smuzhiyun * Distributed under the terms of the GNU GPL, version two. 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /* Storage subclass codes */ 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define USB_SC_RBC 0x01 /* Typically, flash devices */ 19*4882a593Smuzhiyun #define USB_SC_8020 0x02 /* CD-ROM */ 20*4882a593Smuzhiyun #define USB_SC_QIC 0x03 /* QIC-157 Tapes */ 21*4882a593Smuzhiyun #define USB_SC_UFI 0x04 /* Floppy */ 22*4882a593Smuzhiyun #define USB_SC_8070 0x05 /* Removable media */ 23*4882a593Smuzhiyun #define USB_SC_SCSI 0x06 /* Transparent */ 24*4882a593Smuzhiyun #define USB_SC_LOCKABLE 0x07 /* Password-protected */ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #define USB_SC_ISD200 0xf0 /* ISD200 ATA */ 27*4882a593Smuzhiyun #define USB_SC_CYP_ATACB 0xf1 /* Cypress ATACB */ 28*4882a593Smuzhiyun #define USB_SC_DEVICE 0xff /* Use device's value */ 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun /* Storage protocol codes */ 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #define USB_PR_CBI 0x00 /* Control/Bulk/Interrupt */ 33*4882a593Smuzhiyun #define USB_PR_CB 0x01 /* Control/Bulk w/o interrupt */ 34*4882a593Smuzhiyun #define USB_PR_BULK 0x50 /* bulk only */ 35*4882a593Smuzhiyun #define USB_PR_UAS 0x62 /* USB Attached SCSI */ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #define USB_PR_USBAT 0x80 /* SCM-ATAPI bridge */ 38*4882a593Smuzhiyun #define USB_PR_EUSB_SDDR09 0x81 /* SCM-SCSI bridge for SDDR-09 */ 39*4882a593Smuzhiyun #define USB_PR_SDDR55 0x82 /* SDDR-55 (made up) */ 40*4882a593Smuzhiyun #define USB_PR_DPCM_USB 0xf0 /* Combination CB/SDDR09 */ 41*4882a593Smuzhiyun #define USB_PR_FREECOM 0xf1 /* Freecom */ 42*4882a593Smuzhiyun #define USB_PR_DATAFAB 0xf2 /* Datafab chipsets */ 43*4882a593Smuzhiyun #define USB_PR_JUMPSHOT 0xf3 /* Lexar Jumpshot */ 44*4882a593Smuzhiyun #define USB_PR_ALAUDA 0xf4 /* Alauda chipsets */ 45*4882a593Smuzhiyun #define USB_PR_KARMA 0xf5 /* Rio Karma */ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #define USB_PR_DEVICE 0xff /* Use device's value */ 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* 50*4882a593Smuzhiyun * Bulk only data structures 51*4882a593Smuzhiyun */ 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun /* command block wrapper */ 54*4882a593Smuzhiyun struct bulk_cb_wrap { 55*4882a593Smuzhiyun __le32 Signature; /* contains 'USBC' */ 56*4882a593Smuzhiyun __u32 Tag; /* unique per command id */ 57*4882a593Smuzhiyun __le32 DataTransferLength; /* size of data */ 58*4882a593Smuzhiyun __u8 Flags; /* direction in bit 0 */ 59*4882a593Smuzhiyun __u8 Lun; /* LUN normally 0 */ 60*4882a593Smuzhiyun __u8 Length; /* length of the CDB */ 61*4882a593Smuzhiyun __u8 CDB[16]; /* max command */ 62*4882a593Smuzhiyun }; 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #define US_BULK_CB_WRAP_LEN 31 65*4882a593Smuzhiyun #define US_BULK_CB_SIGN 0x43425355 /* spells out 'USBC' */ 66*4882a593Smuzhiyun #define US_BULK_FLAG_IN (1 << 7) 67*4882a593Smuzhiyun #define US_BULK_FLAG_OUT 0 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun /* command status wrapper */ 70*4882a593Smuzhiyun struct bulk_cs_wrap { 71*4882a593Smuzhiyun __le32 Signature; /* contains 'USBS' */ 72*4882a593Smuzhiyun __u32 Tag; /* same as original command */ 73*4882a593Smuzhiyun __le32 Residue; /* amount not transferred */ 74*4882a593Smuzhiyun __u8 Status; /* see below */ 75*4882a593Smuzhiyun }; 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun #define US_BULK_CS_WRAP_LEN 13 78*4882a593Smuzhiyun #define US_BULK_CS_SIGN 0x53425355 /* spells out 'USBS' */ 79*4882a593Smuzhiyun #define US_BULK_STAT_OK 0 80*4882a593Smuzhiyun #define US_BULK_STAT_FAIL 1 81*4882a593Smuzhiyun #define US_BULK_STAT_PHASE 2 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun /* bulk-only class specific requests */ 84*4882a593Smuzhiyun #define US_BULK_RESET_REQUEST 0xff 85*4882a593Smuzhiyun #define US_BULK_GET_MAX_LUN 0xfe 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun #endif 88