projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
| ae6d22fe MW |
2 | #ifndef __LINUX_USB_STORAGE_H |
| 3 | #define __LINUX_USB_STORAGE_H | |
| 4 | ||
| 5 | /* | |
| 6 | * linux/usb/storage.h | |
| 7 | * | |
| 8 | * Copyright Matthew Wilcox for Intel Corp, 2010 | |
| 9 | * | |
| 10 | * This file contains definitions taken from the | |
| 11 | * USB Mass Storage Class Specification Overview | |
| 12 | * | |
| 13 | * Distributed under the terms of the GNU GPL, version two. | |
| 14 | */ | |
| 15 | ||
| 16 | /* Storage subclass codes */ | |
| 17 | ||
| 18 | #define USB_SC_RBC 0x01 /* Typically, flash devices */ | |
| 19 | #define USB_SC_8020 0x02 /* CD-ROM */ | |
| 20 | #define USB_SC_QIC 0x03 /* QIC-157 Tapes */ | |
| 21 | #define USB_SC_UFI 0x04 /* Floppy */ | |
| 22 | #define USB_SC_8070 0x05 /* Removable media */ | |
| 23 | #define USB_SC_SCSI 0x06 /* Transparent */ | |
| 24 | #define USB_SC_LOCKABLE 0x07 /* Password-protected */ | |
| 25 | ||
| 26 | #define USB_SC_ISD200 0xf0 /* ISD200 ATA */ | |
| 27 | #define USB_SC_CYP_ATACB 0xf1 /* Cypress ATACB */ | |
| 28 | #define USB_SC_DEVICE 0xff /* Use device's value */ | |
| 29 | ||
| 30 | /* Storage protocol codes */ | |
| 31 | ||
| 32 | #define USB_PR_CBI 0x00 /* Control/Bulk/Interrupt */ | |
| 33 | #define USB_PR_CB 0x01 /* Control/Bulk w/o interrupt */ | |
| 34 | #define USB_PR_BULK 0x50 /* bulk only */ | |
| 35 | #define USB_PR_UAS 0x62 /* USB Attached SCSI */ | |
| 36 | ||
| 37 | #define USB_PR_USBAT 0x80 /* SCM-ATAPI bridge */ | |
| 38 | #define USB_PR_EUSB_SDDR09 0x81 /* SCM-SCSI bridge for SDDR-09 */ | |
| 39 | #define USB_PR_SDDR55 0x82 /* SDDR-55 (made up) */ | |
| 40 | #define USB_PR_DPCM_USB 0xf0 /* Combination CB/SDDR09 */ | |
| 41 | #define USB_PR_FREECOM 0xf1 /* Freecom */ | |
| 42 | #define USB_PR_DATAFAB 0xf2 /* Datafab chipsets */ | |
| 43 | #define USB_PR_JUMPSHOT 0xf3 /* Lexar Jumpshot */ | |
| 44 | #define USB_PR_ALAUDA 0xf4 /* Alauda chipsets */ | |
| 45 | #define USB_PR_KARMA 0xf5 /* Rio Karma */ | |
| 46 | ||
| 47 | #define USB_PR_DEVICE 0xff /* Use device's value */ | |
| 48 | ||
| 1b83349f AO |
49 | /* |
| 50 | * Bulk only data structures | |
| 51 | */ | |
| 7ac4704c SAS |
52 | |
| 53 | /* command block wrapper */ | |
| 54 | struct bulk_cb_wrap { | |
| 55 | __le32 Signature; /* contains 'USBC' */ | |
| 56 | __u32 Tag; /* unique per command id */ | |
| 57 | __le32 DataTransferLength; /* size of data */ | |
| 58 | __u8 Flags; /* direction in bit 0 */ | |
| 59 | __u8 Lun; /* LUN normally 0 */ | |
| 1b83349f | 60 | __u8 Length; /* length of the CDB */ |
| 7ac4704c SAS |
61 | __u8 CDB[16]; /* max command */ |
| 62 | }; | |
| 63 | ||
| 64 | #define US_BULK_CB_WRAP_LEN 31 | |
| 1b83349f | 65 | #define US_BULK_CB_SIGN 0x43425355 /* spells out 'USBC' */ |
| b8db6d64 | 66 | #define US_BULK_FLAG_IN (1 << 7) |
| 7ac4704c SAS |
67 | #define US_BULK_FLAG_OUT 0 |
| 68 | ||
| 69 | /* command status wrapper */ | |
| 70 | struct bulk_cs_wrap { | |
| 1b83349f | 71 | __le32 Signature; /* contains 'USBS' */ |
| 7ac4704c SAS |
72 | __u32 Tag; /* same as original command */ |
| 73 | __le32 Residue; /* amount not transferred */ | |
| 74 | __u8 Status; /* see below */ | |
| 7ac4704c SAS |
75 | }; |
| 76 | ||
| 77 | #define US_BULK_CS_WRAP_LEN 13 | |
| 78 | #define US_BULK_CS_SIGN 0x53425355 /* spells out 'USBS' */ | |
| 79 | #define US_BULK_STAT_OK 0 | |
| 80 | #define US_BULK_STAT_FAIL 1 | |
| 81 | #define US_BULK_STAT_PHASE 2 | |
| 82 | ||
| 83 | /* bulk-only class specific requests */ | |
| 84 | #define US_BULK_RESET_REQUEST 0xff | |
| 85 | #define US_BULK_GET_MAX_LUN 0xfe | |
| 86 | ||
| ae6d22fe | 87 | #endif |