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1.1 root 1: /*
2: * HISTORY
3: * $Log: scsi_all.h,v $
4: * Revision 1.1 1993/03/21 18:12:52 cgd
5: * after 0.2.2 "stable" patches applied
6: *
7: * Revision 1.2 1992/11/20 23:07:13 julian
8: * add a definition for device type T_NODEVICE
9: *
10: * Revision 1.1 1992/09/26 22:14:02 julian
11: * Initial revision
12: *
13: *
14: * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE
15: * -------------------- ----- ----------------------
16: * CURRENT PATCH LEVEL: 1 00098
17: * -------------------- ----- ----------------------
18: *
19: * 16 Feb 93 Julian Elischer ADDED for SCSI system
20: *
21: */
22:
23: /*
24: * SCSI general interface description
25: */
26:
27:
28: /*
29: * Largely written by Julian Elischer ([email protected])
30: * for TRW Financial Systems.
31: *
32: * TRW Financial Systems, in accordance with their agreement with Carnegie
33: * Mellon University, makes this software available to CMU to distribute
34: * or use in any manner that they see fit as long as this message is kept with
35: * the software. For this reason TFS also grants any other persons or
36: * organisations permission to use or modify this software.
37: *
38: * TFS supplies this software to be publicly redistributed
39: * on the understanding that TFS is not responsible for the correct
40: * functioning of this software in any circumstances.
41: *
42: */
43:
44: /*
45: * Ported to run under 386BSD by Julian Elischer ([email protected]) Sept 1992
46: */
47:
48: /*
49: * SCSI command format
50: */
51:
52:
53: struct scsi_generic
54: {
55: u_char opcode;
56: u_char bytes[11];
57: };
58:
59: struct scsi_test_unit_ready
60: {
61: u_char op_code;
62: u_char :5;
63: u_char lun:3;
64: u_char unused[3];
65: u_char link:1;
66: u_char flag:4;
67: u_char :3;
68: };
69:
70: struct scsi_send_diag
71: {
72: u_char op_code;
73: u_char uol:1;
74: u_char dol:1;
75: u_char selftest:1;
76: u_char :1;
77: u_char pf:1;
78: u_char lun:3;
79: u_char unused[1];
80: u_char paramlen[2];
81: u_char link:1;
82: u_char flag:4;
83: u_char :3;
84: };
85:
86: struct scsi_sense
87: {
88: u_char op_code;
89: u_char :5;
90: u_char lun:3;
91: u_char unused[2];
92: u_char length;
93: u_char link:1;
94: u_char flag:1;
95: u_char :6;
96: };
97:
98: struct scsi_inquiry
99: {
100: u_char op_code;
101: u_char :5;
102: u_char lun:3;
103: u_char unused[2];
104: u_char length;
105: u_char link:1;
106: u_char flag:1;
107: u_char :6;
108: };
109:
110: struct scsi_mode_sense
111: {
112: u_char op_code;
113: u_char :3;
114: u_char dbd:1;
115: u_char rsvd:1;
116: u_char lun:3;
117: u_char page_code:6;
118: u_char page_ctrl:2;
119: u_char unused;
120: u_char length;
121: u_char link:1;
122: u_char flag:1;
123: u_char :6;
124: };
125:
126: struct scsi_mode_sense_big
127: {
128: u_char op_code;
129: u_char :3;
130: u_char dbd:1;
131: u_char rsvd:1;
132: u_char lun:3;
133: u_char page_code:6;
134: u_char page_ctrl:2;
135: u_char unused[4];
136: u_char length[2];
137: u_char link:1;
138: u_char flag:1;
139: u_char :6;
140: };
141:
142: struct scsi_mode_select
143: {
144: u_char op_code;
145: u_char sp:1;
146: u_char :3;
147: u_char pf:1;
148: u_char lun:3;
149: u_char unused[2];
150: u_char length;
151: u_char link:1;
152: u_char flag:1;
153: u_char :6;
154: };
155:
156: struct scsi_mode_select_big
157: {
158: u_char op_code;
159: u_char sp:1;
160: u_char :3;
161: u_char pf:1;
162: u_char lun:3;
163: u_char unused[5];
164: u_char length[2];
165: u_char link:1;
166: u_char flag:1;
167: u_char :6;
168: };
169:
170: struct scsi_reserve
171: {
172: u_char op_code;
173: u_char :5;
174: u_char lun:3;
175: u_char unused[2];
176: u_char length;
177: u_char link:1;
178: u_char flag:1;
179: u_char :6;
180: };
181:
182: struct scsi_release
183: {
184: u_char op_code;
185: u_char :5;
186: u_char lun:3;
187: u_char unused[2];
188: u_char length;
189: u_char link:1;
190: u_char flag:1;
191: u_char :6;
192: };
193:
194: struct scsi_prevent
195: {
196: u_char op_code;
197: u_char :5;
198: u_char lun:3;
199: u_char unused[2];
200: u_char prevent:1;
201: u_char :7;
202: u_char link:1;
203: u_char flag:1;
204: u_char :6;
205: };
206: #define PR_PREVENT 1
207: #define PR_ALLOW 0
208:
209: /*
210: * Opcodes
211: */
212:
213: #define TEST_UNIT_READY 0x00
214: #define REQUEST_SENSE 0x03
215: #define INQUIRY 0x12
216: #define MODE_SELECT 0x15
217: #define MODE_SENSE 0x1a
218: #define START_STOP 0x1b
219: #define RESERVE 0x16
220: #define RELEASE 0x17
221: #define PREVENT_ALLOW 0x1e
222: #define POSITION_TO_ELEMENT 0x2b
223: #define MODE_SENSE_BIG 0x54
224: #define MODE_SELECT_BIG 0x55
225: #define MOVE_MEDIUM 0xa5
226: #define READ_ELEMENT_STATUS 0xb8
227:
228:
229: /*
230: * sense data format
231: */
232: #define T_DIRECT 0
233: #define T_SEQUENTIAL 1
234: #define T_PRINTER 2
235: #define T_PROCESSOR 3
236: #define T_WORM 4
237: #define T_READONLY 5
238: #define T_SCANNER 6
239: #define T_OPTICAL 7
240: #define T_NODEVICE 0x1F
241:
242: #define T_CHANGER 8
243: #define T_COMM 9
244:
245: #define T_REMOV 1
246: #define T_FIXED 0
247:
248: struct scsi_inquiry_data
249: {
250: u_char device_type:5;
251: u_char device_qualifier:3;
252: u_char dev_qual2:7;
253: u_char removable:1;
254: u_char ansii_version:3;
255: u_char :5;
256: u_char response_format;
257: u_char additional_length;
258: u_char unused[2];
259: u_char :3;
260: u_char can_link:1;
261: u_char can_sync:1;
262: u_char :3;
263: char vendor[8];
264: char product[16];
265: char revision[4];
266: u_char extra[8];
267: };
268:
269:
270: struct scsi_sense_data
271: {
272: u_char error_code:4;
273: u_char error_class:3;
274: u_char valid:1;
275: union
276: {
277: struct
278: {
279: u_char blockhi:5;
280: u_char vendor:3;
281: u_char blockmed;
282: u_char blocklow;
283: } unextended;
284: struct
285: {
286: u_char segment;
287: u_char sense_key:4;
288: u_char :1;
289: u_char ili:1;
290: u_char eom:1;
291: u_char filemark:1;
292: u_char info[4];
293: u_char extra_len;
294: /* allocate enough room to hold new stuff
295: u_char cmd_spec_info[4];
296: u_char add_sense_code;
297: u_char add_sense_code_qual;
298: u_char fru;
299: u_char sense_key_spec_1:7;
300: u_char sksv:1;
301: u_char sense_key_spec_2;
302: u_char sense_key_spec_3;
303: ( by increasing 16 to 26 below) */
304: u_char extra_bytes[26];
305: } extended;
306: }ext;
307: };
308: struct scsi_sense_data_new
309: {
310: u_char error_code:7;
311: u_char valid:1;
312: union
313: {
314: struct
315: {
316: u_char blockhi:5;
317: u_char vendor:3;
318: u_char blockmed;
319: u_char blocklow;
320: } unextended;
321: struct
322: {
323: u_char segment;
324: u_char sense_key:4;
325: u_char :1;
326: u_char ili:1;
327: u_char eom:1;
328: u_char filemark:1;
329: u_char info[4];
330: u_char extra_len;
331: u_char cmd_spec_info[4];
332: u_char add_sense_code;
333: u_char add_sense_code_qual;
334: u_char fru;
335: u_char sense_key_spec_1:7;
336: u_char sksv:1;
337: u_char sense_key_spec_2;
338: u_char sense_key_spec_3;
339: u_char extra_bytes[16];
340: } extended;
341: }ext;
342: };
343:
344: struct blk_desc
345: {
346: u_char density;
347: u_char nblocks[3];
348: u_char reserved;
349: u_char blklen[3];
350: };
351:
352: struct scsi_mode_header
353: {
354: u_char data_length; /* Sense data length */
355: u_char medium_type;
356: u_char dev_spec;
357: u_char blk_desc_len;
358: };
359:
360: struct scsi_mode_header_big
361: {
362: u_char data_length[2]; /* Sense data length */
363: u_char medium_type;
364: u_char dev_spec;
365: u_char unused[2];
366: u_char blk_desc_len[2];
367: };
368:
369:
370: /*
371: * Status Byte
372: */
373: #define SCSI_OK 0x00
374: #define SCSI_CHECK 0x02
375: #define SCSI_BUSY 0x08
376: #define SCSI_INTERM 0x10
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