Release 4.7 include/linux/usb/uas.h

#ifndef __USB_UAS_H__

#define __USB_UAS_H__

#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>

/* Common header for all IUs */

struct iu {
	
__u8 iu_id;
	
__u8 rsvd1;
	
__be16 tag;
} __attribute__((__packed__));

enum {
	
IU_ID_COMMAND		= 0x01,
	
IU_ID_STATUS		= 0x03,
	
IU_ID_RESPONSE		= 0x04,
	
IU_ID_TASK_MGMT		= 0x05,
	
IU_ID_READ_READY	= 0x06,
	
IU_ID_WRITE_READY	= 0x07,
};

enum {
	
TMF_ABORT_TASK          = 0x01,
	
TMF_ABORT_TASK_SET      = 0x02,
	
TMF_CLEAR_TASK_SET      = 0x04,
	
TMF_LOGICAL_UNIT_RESET  = 0x08,
	
TMF_I_T_NEXUS_RESET     = 0x10,
	
TMF_CLEAR_ACA           = 0x40,
	
TMF_QUERY_TASK          = 0x80,
	
TMF_QUERY_TASK_SET      = 0x81,
	
TMF_QUERY_ASYNC_EVENT   = 0x82,
};

enum {
	
RC_TMF_COMPLETE         = 0x00,
	
RC_INVALID_INFO_UNIT    = 0x02,
	
RC_TMF_NOT_SUPPORTED    = 0x04,
	
RC_TMF_FAILED           = 0x05,
	
RC_TMF_SUCCEEDED        = 0x08,
	
RC_INCORRECT_LUN        = 0x09,
	
RC_OVERLAPPED_TAG       = 0x0a,
};


struct command_iu {
	
__u8 iu_id;
	
__u8 rsvd1;
	
__be16 tag;
	
__u8 prio_attr;
	
__u8 rsvd5;
	
__u8 len;
	
__u8 rsvd7;
	
struct scsi_lun lun;
	
__u8 cdb[16];	/* XXX: Overflow-checking tools may misunderstand */
} __attribute__((__packed__));


struct task_mgmt_iu {
	
__u8 iu_id;
	
__u8 rsvd1;
	
__be16 tag;
	
__u8 function;
	
__u8 rsvd2;
	
__be16 task_tag;
	
struct scsi_lun lun;
} __attribute__((__packed__));

/*
 * Also used for the Read Ready and Write Ready IUs since they have the
 * same first four bytes
 */

struct sense_iu {
	
__u8 iu_id;
	
__u8 rsvd1;
	
__be16 tag;
	
__be16 status_qual;
	
__u8 status;
	
__u8 rsvd7[7];
	
__be16 len;
	
__u8 sense[SCSI_SENSE_BUFFERSIZE];
} __attribute__((__packed__));


struct response_iu {
	
__u8 iu_id;
	
__u8 rsvd1;
	
__be16 tag;
	
__u8 add_response_info[3];
	
__u8 response_code;
} __attribute__((__packed__));


struct usb_pipe_usage_descriptor {
	
__u8  bLength;
	
__u8  bDescriptorType;

	
__u8  bPipeID;
	
__u8  Reserved;
} __attribute__((__packed__));

enum {
	
CMD_PIPE_ID		= 1,
	
STATUS_PIPE_ID		= 2,
	
DATA_IN_PIPE_ID		= 3,
	
DATA_OUT_PIPE_ID	= 4,

	
UAS_SIMPLE_TAG		= 0,
	
UAS_HEAD_TAG		= 1,
	
UAS_ORDERED_TAG		= 2,
	
UAS_ACA			= 4,
};
#endif
Overall Contributors
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sebastian andrzej siewior
sebastian andrzej siewior
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gerd hoffmann
gerd hoffmann
115
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hans de goede
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Directory: include/linux/usb

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