Root/
1 | /* |
2 | * ioctl interface for the scsi media changer driver |
3 | */ |
4 | |
5 | /* changer element types */ |
6 | #define CHET_MT 0 /* media transport element (robot) */ |
7 | #define CHET_ST 1 /* storage element (media slots) */ |
8 | #define CHET_IE 2 /* import/export element */ |
9 | #define CHET_DT 3 /* data transfer element (tape/cdrom/whatever) */ |
10 | #define CHET_V1 4 /* vendor specific #1 */ |
11 | #define CHET_V2 5 /* vendor specific #2 */ |
12 | #define CHET_V3 6 /* vendor specific #3 */ |
13 | #define CHET_V4 7 /* vendor specific #4 */ |
14 | |
15 | |
16 | /* |
17 | * CHIOGPARAMS |
18 | * query changer properties |
19 | * |
20 | * CHIOVGPARAMS |
21 | * query vendor-specific element types |
22 | * |
23 | * accessing elements works by specifing type and unit of the element. |
24 | * for eample, storage elements are addressed with type = CHET_ST and |
25 | * unit = 0 .. cp_nslots-1 |
26 | * |
27 | */ |
28 | struct changer_params { |
29 | int cp_curpicker; /* current transport element */ |
30 | int cp_npickers; /* number of transport elements (CHET_MT) */ |
31 | int cp_nslots; /* number of storage elements (CHET_ST) */ |
32 | int cp_nportals; /* number of import/export elements (CHET_IE) */ |
33 | int cp_ndrives; /* number of data transfer elements (CHET_DT) */ |
34 | }; |
35 | struct changer_vendor_params { |
36 | int cvp_n1; /* number of vendor specific elems (CHET_V1) */ |
37 | char cvp_label1[16]; |
38 | int cvp_n2; /* number of vendor specific elems (CHET_V2) */ |
39 | char cvp_label2[16]; |
40 | int cvp_n3; /* number of vendor specific elems (CHET_V3) */ |
41 | char cvp_label3[16]; |
42 | int cvp_n4; /* number of vendor specific elems (CHET_V4) */ |
43 | char cvp_label4[16]; |
44 | int reserved[8]; |
45 | }; |
46 | |
47 | |
48 | /* |
49 | * CHIOMOVE |
50 | * move a medium from one element to another |
51 | */ |
52 | struct changer_move { |
53 | int cm_fromtype; /* type/unit of source element */ |
54 | int cm_fromunit; |
55 | int cm_totype; /* type/unit of destination element */ |
56 | int cm_tounit; |
57 | int cm_flags; |
58 | }; |
59 | #define CM_INVERT 1 /* flag: rotate media (for double-sided like MOD) */ |
60 | |
61 | |
62 | /* |
63 | * CHIOEXCHANGE |
64 | * move one medium from element #1 to element #2, |
65 | * and another one from element #2 to element #3. |
66 | * element #1 and #3 are allowed to be identical. |
67 | */ |
68 | struct changer_exchange { |
69 | int ce_srctype; /* type/unit of element #1 */ |
70 | int ce_srcunit; |
71 | int ce_fdsttype; /* type/unit of element #2 */ |
72 | int ce_fdstunit; |
73 | int ce_sdsttype; /* type/unit of element #3 */ |
74 | int ce_sdstunit; |
75 | int ce_flags; |
76 | }; |
77 | #define CE_INVERT1 1 |
78 | #define CE_INVERT2 2 |
79 | |
80 | |
81 | /* |
82 | * CHIOPOSITION |
83 | * move the transport element (robot arm) to a specific element. |
84 | */ |
85 | struct changer_position { |
86 | int cp_type; |
87 | int cp_unit; |
88 | int cp_flags; |
89 | }; |
90 | #define CP_INVERT 1 |
91 | |
92 | |
93 | /* |
94 | * CHIOGSTATUS |
95 | * get element status for all elements of a specific type |
96 | */ |
97 | struct changer_element_status { |
98 | int ces_type; |
99 | unsigned char __user *ces_data; |
100 | }; |
101 | #define CESTATUS_FULL 0x01 /* full */ |
102 | #define CESTATUS_IMPEXP 0x02 /* media was imported (inserted by sysop) */ |
103 | #define CESTATUS_EXCEPT 0x04 /* error condition */ |
104 | #define CESTATUS_ACCESS 0x08 /* access allowed */ |
105 | #define CESTATUS_EXENAB 0x10 /* element can export media */ |
106 | #define CESTATUS_INENAB 0x20 /* element can import media */ |
107 | |
108 | |
109 | /* |
110 | * CHIOGELEM |
111 | * get more detailed status information for a single element |
112 | */ |
113 | struct changer_get_element { |
114 | int cge_type; /* type/unit */ |
115 | int cge_unit; |
116 | int cge_status; /* status */ |
117 | int cge_errno; /* errno */ |
118 | int cge_srctype; /* source element of the last move/exchange */ |
119 | int cge_srcunit; |
120 | int cge_id; /* scsi id (for data transfer elements) */ |
121 | int cge_lun; /* scsi lun (for data transfer elements) */ |
122 | char cge_pvoltag[36]; /* primary volume tag */ |
123 | char cge_avoltag[36]; /* alternate volume tag */ |
124 | int cge_flags; |
125 | }; |
126 | /* flags */ |
127 | #define CGE_ERRNO 0x01 /* errno available */ |
128 | #define CGE_INVERT 0x02 /* media inverted */ |
129 | #define CGE_SRC 0x04 /* media src available */ |
130 | #define CGE_IDLUN 0x08 /* ID+LUN available */ |
131 | #define CGE_PVOLTAG 0x10 /* primary volume tag available */ |
132 | #define CGE_AVOLTAG 0x20 /* alternate volume tag available */ |
133 | |
134 | |
135 | /* |
136 | * CHIOSVOLTAG |
137 | * set volume tag |
138 | */ |
139 | struct changer_set_voltag { |
140 | int csv_type; /* type/unit */ |
141 | int csv_unit; |
142 | char csv_voltag[36]; /* volume tag */ |
143 | int csv_flags; |
144 | }; |
145 | #define CSV_PVOLTAG 0x01 /* primary volume tag */ |
146 | #define CSV_AVOLTAG 0x02 /* alternate volume tag */ |
147 | #define CSV_CLEARTAG 0x04 /* clear volume tag */ |
148 | |
149 | /* ioctls */ |
150 | #define CHIOMOVE _IOW('c', 1,struct changer_move) |
151 | #define CHIOEXCHANGE _IOW('c', 2,struct changer_exchange) |
152 | #define CHIOPOSITION _IOW('c', 3,struct changer_position) |
153 | #define CHIOGPICKER _IOR('c', 4,int) /* not impl. */ |
154 | #define CHIOSPICKER _IOW('c', 5,int) /* not impl. */ |
155 | #define CHIOGPARAMS _IOR('c', 6,struct changer_params) |
156 | #define CHIOGSTATUS _IOW('c', 8,struct changer_element_status) |
157 | #define CHIOGELEM _IOW('c',16,struct changer_get_element) |
158 | #define CHIOINITELEM _IO('c',17) |
159 | #define CHIOSVOLTAG _IOW('c',18,struct changer_set_voltag) |
160 | #define CHIOGVPARAMS _IOR('c',19,struct changer_vendor_params) |
161 | |
162 | /* ---------------------------------------------------------------------- */ |
163 | |
164 | /* |
165 | * Local variables: |
166 | * c-basic-offset: 8 |
167 | * End: |
168 | */ |
169 |
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