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gerrit-public.fairphone.software / kernel / msm-4.9 / 94a988a8ab91c0cdabd2431281ec09dc52d92674 / . / include / linux / usb / uas.h
blob: 3fc8e8b9f04318528b4513ee927e8db4f72ab8b7 [file] [log] [blame]
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]1#ifndef __USB_UAS_H__
2#define __USB_UAS_H__
3
4#include <scsi/scsi.h>
5#include <scsi/scsi_cmnd.h>
6
7/* Common header for all IUs */
8struct iu {
9 __u8 iu_id;
10 __u8 rsvd1;
11 __be16 tag;
Hans de Goeded24354b2013-10-21 11:15:11 +0100[diff] [blame]12} __attribute__((__packed__));
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]13
14enum {
15 IU_ID_COMMAND = 0x01,
16 IU_ID_STATUS = 0x03,
17 IU_ID_RESPONSE = 0x04,
18 IU_ID_TASK_MGMT = 0x05,
19 IU_ID_READ_READY = 0x06,
20 IU_ID_WRITE_READY = 0x07,
21};
22
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]23enum {
24 TMF_ABORT_TASK = 0x01,
25 TMF_ABORT_TASK_SET = 0x02,
26 TMF_CLEAR_TASK_SET = 0x04,
27 TMF_LOGICAL_UNIT_RESET = 0x08,
28 TMF_I_T_NEXUS_RESET = 0x10,
29 TMF_CLEAR_ACA = 0x40,
30 TMF_QUERY_TASK = 0x80,
31 TMF_QUERY_TASK_SET = 0x81,
32 TMF_QUERY_ASYNC_EVENT = 0x82,
33};
34
35enum {
36 RC_TMF_COMPLETE = 0x00,
37 RC_INVALID_INFO_UNIT = 0x02,
38 RC_TMF_NOT_SUPPORTED = 0x04,
39 RC_TMF_FAILED = 0x05,
40 RC_TMF_SUCCEEDED = 0x08,
41 RC_INCORRECT_LUN = 0x09,
42 RC_OVERLAPPED_TAG = 0x0a,
43};
44
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]45struct command_iu {
46 __u8 iu_id;
47 __u8 rsvd1;
48 __be16 tag;
49 __u8 prio_attr;
50 __u8 rsvd5;
51 __u8 len;
52 __u8 rsvd7;
53 struct scsi_lun lun;
54 __u8 cdb[16]; /* XXX: Overflow-checking tools may misunderstand */
Hans de Goeded24354b2013-10-21 11:15:11 +0100[diff] [blame]55} __attribute__((__packed__));
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]56
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]57struct task_mgmt_iu {
58 __u8 iu_id;
59 __u8 rsvd1;
60 __be16 tag;
61 __u8 function;
62 __u8 rsvd2;
63 __be16 task_tag;
64 struct scsi_lun lun;
Hans de Goeded24354b2013-10-21 11:15:11 +0100[diff] [blame]65} __attribute__((__packed__));
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]66
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]67/*
68 * Also used for the Read Ready and Write Ready IUs since they have the
69 * same first four bytes
70 */
71struct sense_iu {
72 __u8 iu_id;
73 __u8 rsvd1;
74 __be16 tag;
75 __be16 status_qual;
76 __u8 status;
77 __u8 rsvd7[7];
78 __be16 len;
79 __u8 sense[SCSI_SENSE_BUFFERSIZE];
Hans de Goeded24354b2013-10-21 11:15:11 +0100[diff] [blame]80} __attribute__((__packed__));
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]81
Hans de Goedee52e0312013-10-23 14:27:09 +0100[diff] [blame]82struct response_iu {
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]83 __u8 iu_id;
84 __u8 rsvd1;
85 __be16 tag;
Hans de Goede00d202c2013-10-31 09:59:12 +0100[diff] [blame]86 __u8 add_response_info[3];
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]87 __u8 response_code;
Hans de Goeded24354b2013-10-21 11:15:11 +0100[diff] [blame]88} __attribute__((__packed__));
Gerd Hoffmann023b5152012-06-19 09:54:54 +0200[diff] [blame]89
Sebastian Andrzej Siewioree398b52012-01-11 12:45:57 +0100[diff] [blame]90struct usb_pipe_usage_descriptor {
91 __u8 bLength;
92 __u8 bDescriptorType;
93
94 __u8 bPipeID;
95 __u8 Reserved;
96} __attribute__((__packed__));
97
Sebastian Andrzej Siewior348748b2012-01-11 12:45:56 +0100[diff] [blame]98enum {
99 CMD_PIPE_ID = 1,
100 STATUS_PIPE_ID = 2,
101 DATA_IN_PIPE_ID = 3,
102 DATA_OUT_PIPE_ID = 4,
103
104 UAS_SIMPLE_TAG = 0,
105 UAS_HEAD_TAG = 1,
106 UAS_ORDERED_TAG = 2,
107 UAS_ACA = 4,
108};
109#endif