| /* |
| * ioctl interface for the scsi media changer driver |
| */ |
| |
| /* changer element types */ |
| #define CHET_MT 0 /* media transport element (robot) */ |
| #define CHET_ST 1 /* storage element (media slots) */ |
| #define CHET_IE 2 /* import/export element */ |
| #define CHET_DT 3 /* data transfer element (tape/cdrom/whatever) */ |
| #define CHET_V1 4 /* vendor specific #1 */ |
| #define CHET_V2 5 /* vendor specific #2 */ |
| #define CHET_V3 6 /* vendor specific #3 */ |
| #define CHET_V4 7 /* vendor specific #4 */ |
| |
| |
| /* |
| * CHIOGPARAMS |
| * query changer properties |
| * |
| * CHIOVGPARAMS |
| * query vendor-specific element types |
| * |
| * accessing elements works by specifing type and unit of the element. |
| * for example, storage elements are addressed with type = CHET_ST and |
| * unit = 0 .. cp_nslots-1 |
| * |
| */ |
| struct changer_params { |
| int cp_curpicker; /* current transport element */ |
| int cp_npickers; /* number of transport elements (CHET_MT) */ |
| int cp_nslots; /* number of storage elements (CHET_ST) */ |
| int cp_nportals; /* number of import/export elements (CHET_IE) */ |
| int cp_ndrives; /* number of data transfer elements (CHET_DT) */ |
| }; |
| struct changer_vendor_params { |
| int cvp_n1; /* number of vendor specific elems (CHET_V1) */ |
| char cvp_label1[16]; |
| int cvp_n2; /* number of vendor specific elems (CHET_V2) */ |
| char cvp_label2[16]; |
| int cvp_n3; /* number of vendor specific elems (CHET_V3) */ |
| char cvp_label3[16]; |
| int cvp_n4; /* number of vendor specific elems (CHET_V4) */ |
| char cvp_label4[16]; |
| int reserved[8]; |
| }; |
| |
| |
| /* |
| * CHIOMOVE |
| * move a medium from one element to another |
| */ |
| struct changer_move { |
| int cm_fromtype; /* type/unit of source element */ |
| int cm_fromunit; |
| int cm_totype; /* type/unit of destination element */ |
| int cm_tounit; |
| int cm_flags; |
| }; |
| #define CM_INVERT 1 /* flag: rotate media (for double-sided like MOD) */ |
| |
| |
| /* |
| * CHIOEXCHANGE |
| * move one medium from element #1 to element #2, |
| * and another one from element #2 to element #3. |
| * element #1 and #3 are allowed to be identical. |
| */ |
| struct changer_exchange { |
| int ce_srctype; /* type/unit of element #1 */ |
| int ce_srcunit; |
| int ce_fdsttype; /* type/unit of element #2 */ |
| int ce_fdstunit; |
| int ce_sdsttype; /* type/unit of element #3 */ |
| int ce_sdstunit; |
| int ce_flags; |
| }; |
| #define CE_INVERT1 1 |
| #define CE_INVERT2 2 |
| |
| |
| /* |
| * CHIOPOSITION |
| * move the transport element (robot arm) to a specific element. |
| */ |
| struct changer_position { |
| int cp_type; |
| int cp_unit; |
| int cp_flags; |
| }; |
| #define CP_INVERT 1 |
| |
| |
| /* |
| * CHIOGSTATUS |
| * get element status for all elements of a specific type |
| */ |
| struct changer_element_status { |
| int ces_type; |
| unsigned char *ces_data; |
| }; |
| #define CESTATUS_FULL 0x01 /* full */ |
| #define CESTATUS_IMPEXP 0x02 /* media was imported (inserted by sysop) */ |
| #define CESTATUS_EXCEPT 0x04 /* error condition */ |
| #define CESTATUS_ACCESS 0x08 /* access allowed */ |
| #define CESTATUS_EXENAB 0x10 /* element can export media */ |
| #define CESTATUS_INENAB 0x20 /* element can import media */ |
| |
| |
| /* |
| * CHIOGELEM |
| * get more detailed status information for a single element |
| */ |
| struct changer_get_element { |
| int cge_type; /* type/unit */ |
| int cge_unit; |
| int cge_status; /* status */ |
| int cge_errno; /* errno */ |
| int cge_srctype; /* source element of the last move/exchange */ |
| int cge_srcunit; |
| int cge_id; /* scsi id (for data transfer elements) */ |
| int cge_lun; /* scsi lun (for data transfer elements) */ |
| char cge_pvoltag[36]; /* primary volume tag */ |
| char cge_avoltag[36]; /* alternate volume tag */ |
| int cge_flags; |
| }; |
| /* flags */ |
| #define CGE_ERRNO 0x01 /* errno available */ |
| #define CGE_INVERT 0x02 /* media inverted */ |
| #define CGE_SRC 0x04 /* media src available */ |
| #define CGE_IDLUN 0x08 /* ID+LUN available */ |
| #define CGE_PVOLTAG 0x10 /* primary volume tag available */ |
| #define CGE_AVOLTAG 0x20 /* alternate volume tag available */ |
| |
| |
| /* |
| * CHIOSVOLTAG |
| * set volume tag |
| */ |
| struct changer_set_voltag { |
| int csv_type; /* type/unit */ |
| int csv_unit; |
| char csv_voltag[36]; /* volume tag */ |
| int csv_flags; |
| }; |
| #define CSV_PVOLTAG 0x01 /* primary volume tag */ |
| #define CSV_AVOLTAG 0x02 /* alternate volume tag */ |
| #define CSV_CLEARTAG 0x04 /* clear volume tag */ |
| |
| /* ioctls */ |
| #define CHIOMOVE _IOW('c', 1,struct changer_move) |
| #define CHIOEXCHANGE _IOW('c', 2,struct changer_exchange) |
| #define CHIOPOSITION _IOW('c', 3,struct changer_position) |
| #define CHIOGPICKER _IOR('c', 4,int) /* not impl. */ |
| #define CHIOSPICKER _IOW('c', 5,int) /* not impl. */ |
| #define CHIOGPARAMS _IOR('c', 6,struct changer_params) |
| #define CHIOGSTATUS _IOW('c', 8,struct changer_element_status) |
| #define CHIOGELEM _IOW('c',16,struct changer_get_element) |
| #define CHIOINITELEM _IO('c',17) |
| #define CHIOSVOLTAG _IOW('c',18,struct changer_set_voltag) |
| #define CHIOGVPARAMS _IOR('c',19,struct changer_vendor_params) |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |
