99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
/*
|
|
* SCSI changer interface description
|
|
*/
|
|
|
|
/*
|
|
* Written by Stefan Grefen (grefen@goofy.zdv.uni-mainz.de soon grefen@convex.com)
|
|
* based on the SCSI System by written Julian Elischer (julian@tfs.com)
|
|
* for TRW Financial Systems.
|
|
*
|
|
* TRW Financial Systems, in accordance with their agreement with Carnegie
|
|
* Mellon University, makes this software available to CMU to distribute
|
|
* or use in any manner that they see fit as long as this message is kept with
|
|
* the software. For this reason TFS also grants any other persons or
|
|
* organisations permission to use or modify this software.
|
|
*
|
|
* TFS supplies this software to be publicly redistributed
|
|
* on the understanding that TFS is not responsible for the correct
|
|
* functioning of this software in any circumstances.
|
|
*
|
|
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
|
|
*
|
|
* $Id: scsi_changer.h,v 1.5 93/08/26 21:09:22 julian Exp Locker: julian $
|
|
*/
|
|
#ifndef _SCSI_SCSI_CHANGER_H
|
|
#define _SCSI_SCSI_CHANGER_H 1
|
|
|
|
/*
|
|
* SCSI command format
|
|
*/
|
|
struct scsi_read_element_status
|
|
{
|
|
u_char op_code;
|
|
u_char byte2;
|
|
#define SRES_ELEM_TYPE_CODE 0x0F
|
|
#define SRES_ELEM_VOLTAG 0x10
|
|
u_char starting_element_addr[2];
|
|
u_char number_of_elements[2];
|
|
u_char resv1;
|
|
u_char allocation_length[3];
|
|
u_char resv2;
|
|
u_char control;
|
|
};
|
|
#define RE_ALL_ELEMENTS 0
|
|
#define RE_MEDIUM_TRANSPORT_ELEMENT 1
|
|
#define RE_STORAGE_ELEMENT 2
|
|
#define RE_IMPORT_EXPORT 3
|
|
#define RE_DATA_TRANSFER_ELEMENT 4
|
|
|
|
struct scsi_move_medium
|
|
{
|
|
u_char op_code;
|
|
u_char byte2;
|
|
u_char transport_element_address[2];
|
|
u_char source_address[2];
|
|
u_char destination_address[2];
|
|
u_char rsvd[2];
|
|
u_char invert;
|
|
u_char control;
|
|
};
|
|
|
|
struct scsi_position_to_element
|
|
{
|
|
u_char op_code;
|
|
u_char byte2;
|
|
u_char transport_element_address[2];
|
|
u_char source_address[2];
|
|
u_char rsvd[2];
|
|
u_char invert;
|
|
u_char control;
|
|
};
|
|
|
|
/*
|
|
* Opcodes
|
|
*/
|
|
#define POSITION_TO_ELEMENT 0x2b
|
|
#define MOVE_MEDIUM 0xa5
|
|
#define READ_ELEMENT_STATUS 0xb8
|
|
|
|
struct scsi_element_status_data
|
|
{
|
|
u_char first_element_reported[2];
|
|
u_char number_of_elements_reported[2];
|
|
u_char rsvd;
|
|
u_char byte_count_of_report[3];
|
|
};
|
|
|
|
struct element_status_page
|
|
{
|
|
u_char element_type_code;
|
|
u_char flags;
|
|
#define ESP_AVOLTAG 0x40
|
|
#define ESP_PVOLTAG 0x80
|
|
u_char element_descriptor_length[2];
|
|
u_char rsvd;
|
|
u_char byte_count_of_descriptor_data[3];
|
|
};
|
|
#endif /*_SCSI_SCSI_CHANGER_H*/
|
|
|