1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/************************************************************************************
* include/nuttx/usb/storage.h
*
* Copyright (C) 2008-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* References:
* "Universal Serial Bus Mass Storage Class, Specification Overview,"
* Revision 1.2, USB Implementer's Forum, June 23, 2003.
*
* "Universal Serial Bus Mass Storage Class, Bulk-Only Transport,"
* Revision 1.0, USB Implementer's Forum, September 31, 1999.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __INCLUDE_NUTTX_USB_STORAGE_H
#define __INCLUDE_NUTTX_USB_STORAGE_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Mass storage requests */
#define USBMSC_TYPE_SETUPIN (USB_DIR_IN|USB_REQ_TYPE_CLASS|USB_REQ_RECIPIENT_INTERFACE)
#define USBMSC_TYPE_SETUPOUT (USB_DIR_OUT|USB_REQ_TYPE_CLASS|USB_REQ_RECIPIENT_INTERFACE)
#define USBMSC_REQ_MSRESET (0xff) /* Reset mass storage device and interface */
#define USBMSC_REQ_GETMAXLUN (0xfe) /* Return number LUNs supported */
/* Mass storage subclass codes */
#define USBMSC_SUBCLASS_RBC (0x01) /* Reduced block commands (e.g., flash devices) */
#define USBMSC_SUBCLASS_SFF1 (0x02) /* SFF-8020i/MMC-2 (ATAPI) (e.g., C/DVD) */
#define USBMSC_SUBCLASS_QIC (0x03) /* QIC-157 (e.g., tape device) */
#define USBMSC_SUBCLASS_UFI (0x04) /* e.g. floppy device */
#define USBMSC_SUBCLASS_SFF2 (0x05) /* SFF-8070i (e.g. floppy disk) */
#define USBMSC_SUBCLASS_SCSI (0x06) /* SCSI transparent */
/* Mass storage transport protocols */
#define USBMSC_PROTO_CBI0 (0x00) /* CBI transport with command completion interrupt */
#define USBMSC_PROTO_CBI1 (0x01) /* CBI transport without command completion interrupt */
#define USBMSC_PROTO_BULKONLY (0x50) /* Bulk only transport */
/* Common Block Wrapper (CBW) */
#define USBMSC_CBW_SIZEOF (31)
#define USBMSC_CBW_SIGNATURE (0x43425355) /* Little endian USBC */
#define USBMSC_CBWFLAG_IN (0x80) /* Bit 7=1: Direction = IN */
#define USBMSC_MAXCDBLEN (16) /* Max length of SCSI Command Data Block */
/* Command Status Wrapper (CSW) */
#define USBMSC_CSW_SIZEOF (13)
#define USBMSC_CSW_SIGNATURE (0x53425355) /* Little endian 'USBS' */
#define USBMSC_CSWSTATUS_PASS (0)
#define USBMSC_CSWSTATUS_FAIL (1)
#define USBMSC_CSWSTATUS_PHASEERROR (2)
/************************************************************************************
* Public Types
************************************************************************************/
/* Command Block Wrapper (CBW) */
struct usbmsc_cbw_s
{
uint8_t signature[4]; /* 'USBC' = 0x43425355 */
uint8_t tag[4]; /* Depends on command id */
uint8_t datlen[4]; /* Number of bytes that host expects to transfer */
uint8_t flags; /* Bit 7: Direction=IN (other obsolete or reserved) */
uint8_t lun; /* LUN (normally 0) */
uint8_t cdblen; /* len of cdb[] */
uint8_t cdb[USBMSC_MAXCDBLEN]; /* Command Data Block */
};
/* Command Status Wrapper (CSW) */
struct usbmsc_csw_s
{
uint8_t signature[4]; /* 'USBS' = 0x53425355 */
uint8_t tag[4]; /* Same tag as original command */
uint8_t residue[4]; /* Amount not transferred */
uint8_t status; /* Status of transfer */
};
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __INCLUDE_NUTTX_USB_STORAGE_H */
|
