| Sebastian Andrzej Siewior | 348748b | 2012-01-11 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 */ |
| 8 | struct iu { |
| 9 | __u8 iu_id; |
| 10 | __u8 rsvd1; |
| 11 | __be16 tag; |
| 12 | }; |
| 13 | |
| 14 | enum { |
| 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 | |
| 23 | struct command_iu { |
| 24 | __u8 iu_id; |
| 25 | __u8 rsvd1; |
| 26 | __be16 tag; |
| 27 | __u8 prio_attr; |
| 28 | __u8 rsvd5; |
| 29 | __u8 len; |
| 30 | __u8 rsvd7; |
| 31 | struct scsi_lun lun; |
| 32 | __u8 cdb[16]; /* XXX: Overflow-checking tools may misunderstand */ |
| 33 | }; |
| 34 | |
| 35 | /* |
| 36 | * Also used for the Read Ready and Write Ready IUs since they have the |
| 37 | * same first four bytes |
| 38 | */ |
| 39 | struct sense_iu { |
| 40 | __u8 iu_id; |
| 41 | __u8 rsvd1; |
| 42 | __be16 tag; |
| 43 | __be16 status_qual; |
| 44 | __u8 status; |
| 45 | __u8 rsvd7[7]; |
| 46 | __be16 len; |
| 47 | __u8 sense[SCSI_SENSE_BUFFERSIZE]; |
| 48 | }; |
| 49 | |
| 50 | enum { |
| 51 | CMD_PIPE_ID = 1, |
| 52 | STATUS_PIPE_ID = 2, |
| 53 | DATA_IN_PIPE_ID = 3, |
| 54 | DATA_OUT_PIPE_ID = 4, |
| 55 | |
| 56 | UAS_SIMPLE_TAG = 0, |
| 57 | UAS_HEAD_TAG = 1, |
| 58 | UAS_ORDERED_TAG = 2, |
| 59 | UAS_ACA = 4, |
| 60 | }; |
| 61 | #endif |