projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 15637ed4 RG |
1 | /* |
| 2 | * SCSI changer interface description | |
| 3 | */ | |
| 4 | ||
| 5 | /* | |
| 6 | * Written by Stefan Grefen (grefen@goofy.zdv.uni-mainz.de soon grefen@convex.com) | |
| 7 | * based on the SCSI System by written Julian Elischer (julian@tfs.com) | |
| 8 | * for TRW Financial Systems. | |
| 9 | * | |
| 10 | * TRW Financial Systems, in accordance with their agreement with Carnegie | |
| 11 | * Mellon University, makes this software available to CMU to distribute | |
| 12 | * or use in any manner that they see fit as long as this message is kept with | |
| 13 | * the software. For this reason TFS also grants any other persons or | |
| 14 | * organisations permission to use or modify this software. | |
| 15 | * | |
| 16 | * TFS supplies this software to be publicly redistributed | |
| 17 | * on the understanding that TFS is not responsible for the correct | |
| 18 | * functioning of this software in any circumstances. | |
| 19 | * | |
| 15637ed4 | 20 | * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 |
| 98639498 RG |
21 | * |
| 22 | * $Id$ | |
| 15637ed4 RG |
23 | */ |
| 24 | ||
| 25 | /* | |
| 26 | * SCSI command format | |
| 27 | */ | |
| 28 | struct scsi_read_element_status | |
| 29 | { | |
| 30 | u_char op_code; | |
| 869c4419 RG |
31 | u_char byte2; |
| 32 | #define SRES_ELEM_TYPE_CODE 0x0F | |
| 33 | #define SRES_ELEM_VOLTAG 0x10 | |
| 15637ed4 RG |
34 | u_char starting_element_addr[2]; |
| 35 | u_char number_of_elements[2]; | |
| 36 | u_char resv1; | |
| 37 | u_char allocation_length[3]; | |
| 38 | u_char resv2; | |
| 869c4419 | 39 | u_char control; |
| 15637ed4 RG |
40 | }; |
| 41 | #define RE_ALL_ELEMENTS 0 | |
| 42 | #define RE_MEDIUM_TRANSPORT_ELEMENT 1 | |
| 43 | #define RE_STORAGE_ELEMENT 2 | |
| 44 | #define RE_IMPORT_EXPORT 3 | |
| 45 | #define RE_DATA_TRANSFER_ELEMENT 4 | |
| 46 | ||
| 47 | struct scsi_move_medium | |
| 48 | { | |
| 49 | u_char op_code; | |
| 869c4419 | 50 | u_char byte2; |
| 15637ed4 RG |
51 | u_char transport_element_address[2]; |
| 52 | u_char source_address[2]; | |
| 53 | u_char destination_address[2]; | |
| 54 | u_char rsvd[2]; | |
| 869c4419 RG |
55 | u_char invert; |
| 56 | u_char control; | |
| 15637ed4 RG |
57 | }; |
| 58 | ||
| 59 | struct scsi_position_to_element | |
| 60 | { | |
| 61 | u_char op_code; | |
| 869c4419 | 62 | u_char byte2; |
| 15637ed4 RG |
63 | u_char transport_element_address[2]; |
| 64 | u_char source_address[2]; | |
| 65 | u_char rsvd[2]; | |
| 869c4419 RG |
66 | u_char invert; |
| 67 | u_char control; | |
| 15637ed4 RG |
68 | }; |
| 69 | ||
| 70 | /* | |
| 71 | * Opcodes | |
| 72 | */ | |
| 73 | #define POSITION_TO_ELEMENT 0x2b | |
| 74 | #define MOVE_MEDIUM 0xa5 | |
| 75 | #define READ_ELEMENT_STATUS 0xb8 | |
| 76 | ||
| 77 | struct scsi_element_status_data | |
| 78 | { | |
| 79 | u_char first_element_reported[2]; | |
| 80 | u_char number_of_elements_reported[2]; | |
| 81 | u_char rsvd; | |
| 82 | u_char byte_count_of_report[3]; | |
| 83 | }; | |
| 84 | ||
| 85 | struct element_status_page | |
| 86 | { | |
| 87 | u_char element_type_code; | |
| 869c4419 RG |
88 | u_char flags; |
| 89 | #define ESP_AVOLTAG 0x40 | |
| 90 | #define ESP_PVOLTAG 0x80 | |
| 15637ed4 RG |
91 | u_char element_descriptor_length[2]; |
| 92 | u_char rsvd; | |
| 93 | u_char byte_count_of_descriptor_data[3]; | |
| 94 | }; | |
| 95 |