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1.1 root 1: #ifndef _LINUX_SCSI_H
2: #define _LINUX_SCSI_H
3:
4: /*
5: * This header file contains public constants and structures used by
6: * the scsi code for linux.
7: */
8:
9: /*
10: $Header: /usr/src/linux/include/linux/RCS/scsi.h,v 1.3 1993/09/24 12:20:33 drew Exp $
11:
12: For documentation on the OPCODES, MESSAGES, and SENSE values,
13: please consult the SCSI standard.
14:
15: */
16:
17: /*
18: * SCSI opcodes
19: */
20:
21: #define TEST_UNIT_READY 0x00
22: #define REZERO_UNIT 0x01
23: #define REQUEST_SENSE 0x03
24: #define FORMAT_UNIT 0x04
25: #define READ_BLOCK_LIMITS 0x05
26: #define REASSIGN_BLOCKS 0x07
27: #define READ_6 0x08
28: #define WRITE_6 0x0a
29: #define SEEK_6 0x0b
30: #define READ_REVERSE 0x0f
31: #define WRITE_FILEMARKS 0x10
32: #define SPACE 0x11
33: #define INQUIRY 0x12
34: #define RECOVER_BUFFERED_DATA 0x14
35: #define MODE_SELECT 0x15
36: #define RESERVE 0x16
37: #define RELEASE 0x17
38: #define COPY 0x18
39: #define ERASE 0x19
40: #define MODE_SENSE 0x1a
41: #define START_STOP 0x1b
42: #define RECEIVE_DIAGNOSTIC 0x1c
43: #define SEND_DIAGNOSTIC 0x1d
44: #define ALLOW_MEDIUM_REMOVAL 0x1e
45:
46: #define SET_WINDOW 0x24
47: #define READ_CAPACITY 0x25
48: #define READ_10 0x28
49: #define WRITE_10 0x2a
50: #define SEEK_10 0x2b
51: #define WRITE_VERIFY 0x2e
52: #define VERIFY 0x2f
53: #define SEARCH_HIGH 0x30
54: #define SEARCH_EQUAL 0x31
55: #define SEARCH_LOW 0x32
56: #define SET_LIMITS 0x33
57: #define PRE_FETCH 0x34
58: #define READ_POSITION 0x34
59: #define SYNCHRONIZE_CACHE 0x35
60: #define LOCK_UNLOCK_CACHE 0x36
61: #define READ_DEFECT_DATA 0x37
62: #define MEDIUM_SCAN 0x38
63: #define COMPARE 0x39
64: #define COPY_VERIFY 0x3a
65: #define WRITE_BUFFER 0x3b
66: #define READ_BUFFER 0x3c
67: #define UPDATE_BLOCK 0x3d
68: #define READ_LONG 0x3e
69: #define WRITE_LONG 0x3f
70: #define CHANGE_DEFINITION 0x40
71: #define WRITE_SAME 0x41
72: #define READ_TOC 0x43
73: #define LOG_SELECT 0x4c
74: #define LOG_SENSE 0x4d
75: #define MODE_SELECT_10 0x55
76: #define RESERVE_10 0x56
77: #define RELEASE_10 0x57
78: #define MODE_SENSE_10 0x5a
79: #define PERSISTENT_RESERVE_IN 0x5e
80: #define PERSISTENT_RESERVE_OUT 0x5f
81: #define REPORT_LUNS 0xa0
82: #define MOVE_MEDIUM 0xa5
83: #define READ_12 0xa8
84: #define WRITE_12 0xaa
85: #define WRITE_VERIFY_12 0xae
86: #define SEARCH_HIGH_12 0xb0
87: #define SEARCH_EQUAL_12 0xb1
88: #define SEARCH_LOW_12 0xb2
89: #define READ_ELEMENT_STATUS 0xb8
90: #define SEND_VOLUME_TAG 0xb6
91: #define WRITE_LONG_2 0xea
92: #define READ_16 0x88
93: #define WRITE_16 0x8a
94: #define VERIFY_16 0x8f
95: #define SERVICE_ACTION_IN 0x9e
96: /* values for service action in */
97: #define SAI_READ_CAPACITY_16 0x10
98:
99: #define SCSI_RETRY_10(c) ((c) == READ_6 || (c) == WRITE_6 || (c) == SEEK_6)
100:
101: /*
102: * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
103: * T10/1561-D Revision 4 Draft dated 7th November 2002.
104: */
105: #define SAM_STAT_GOOD 0x00
106: #define SAM_STAT_CHECK_CONDITION 0x02
107: #define SAM_STAT_CONDITION_MET 0x04
108: #define SAM_STAT_BUSY 0x08
109: #define SAM_STAT_INTERMEDIATE 0x10
110: #define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
111: #define SAM_STAT_RESERVATION_CONFLICT 0x18
112: #define SAM_STAT_COMMAND_TERMINATED 0x22 /* obsolete in SAM-3 */
113: #define SAM_STAT_TASK_SET_FULL 0x28
114: #define SAM_STAT_ACA_ACTIVE 0x30
115: #define SAM_STAT_TASK_ABORTED 0x40
116:
117: /*
118: * Status codes
119: */
120:
121: #define GOOD 0x00
122: #define CHECK_CONDITION 0x01
123: #define CONDITION_GOOD 0x02
124: #define BUSY 0x04
125: #define INTERMEDIATE_GOOD 0x08
126: #define INTERMEDIATE_C_GOOD 0x0a
127: #define RESERVATION_CONFLICT 0x0c
128: #define COMMAND_TERMINATED 0x11
129: #define QUEUE_FULL 0x14
130:
131: #define STATUS_MASK 0x3e
132:
133: /*
134: * SENSE KEYS
135: */
136:
137: #define NO_SENSE 0x00
138: #define RECOVERED_ERROR 0x01
139: #define NOT_READY 0x02
140: #define MEDIUM_ERROR 0x03
141: #define HARDWARE_ERROR 0x04
142: #define ILLEGAL_REQUEST 0x05
143: #define UNIT_ATTENTION 0x06
144: #define DATA_PROTECT 0x07
145: #define BLANK_CHECK 0x08
146: #define COPY_ABORTED 0x0a
147: #define ABORTED_COMMAND 0x0b
148: #define VOLUME_OVERFLOW 0x0d
149: #define MISCOMPARE 0x0e
150:
151:
152: /*
153: * DEVICE TYPES
154: */
155:
156: #define TYPE_DISK 0x00
157: #define TYPE_TAPE 0x01
158: #define TYPE_PRINTER 0x02
159: #define TYPE_PROCESSOR 0x03 /* HP scanners use this */
160: #define TYPE_WORM 0x04 /* Treated as ROM by our system */
161: #define TYPE_ROM 0x05
162: #define TYPE_SCANNER 0x06
163: #define TYPE_MOD 0x07 /* Magneto-optical disk -
164: * - treated as TYPE_DISK */
165: #define TYPE_MEDIUM_CHANGER 0x08
166: #define TYPE_COMM 0x09 /* Communications device */
167: #define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */
168: #define TYPE_NO_LUN 0x7f
169:
170: /*
171: * standard mode-select header prepended to all mode-select commands
172: *
173: * moved here from cdrom.h -- kraxel
174: */
175:
176: struct ccs_modesel_head
177: {
178: uint8_t _r1; /* reserved */
179: uint8_t medium; /* device-specific medium type */
180: uint8_t _r2; /* reserved */
181: uint8_t block_desc_length; /* block descriptor length */
182: uint8_t density; /* device-specific density code */
183: uint8_t number_blocks_hi; /* number of blocks in this block desc */
184: uint8_t number_blocks_med;
185: uint8_t number_blocks_lo;
186: uint8_t _r3;
187: uint8_t block_length_hi; /* block length for blocks in this desc */
188: uint8_t block_length_med;
189: uint8_t block_length_lo;
190: };
191:
192: /*
193: * MESSAGE CODES
194: */
195:
196: #define COMMAND_COMPLETE 0x00
197: #define EXTENDED_MESSAGE 0x01
198: #define EXTENDED_MODIFY_DATA_POINTER 0x00
199: #define EXTENDED_SDTR 0x01
200: #define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */
201: #define EXTENDED_WDTR 0x03
202: #define SAVE_POINTERS 0x02
203: #define RESTORE_POINTERS 0x03
204: #define DISCONNECT 0x04
205: #define INITIATOR_ERROR 0x05
206: #define ABORT 0x06
207: #define MESSAGE_REJECT 0x07
208: #define NOP 0x08
209: #define MSG_PARITY_ERROR 0x09
210: #define LINKED_CMD_COMPLETE 0x0a
211: #define LINKED_FLG_CMD_COMPLETE 0x0b
212: #define BUS_DEVICE_RESET 0x0c
213:
214: #define INITIATE_RECOVERY 0x0f /* SCSI-II only */
215: #define RELEASE_RECOVERY 0x10 /* SCSI-II only */
216:
217: #define SIMPLE_QUEUE_TAG 0x20
218: #define HEAD_OF_QUEUE_TAG 0x21
219: #define ORDERED_QUEUE_TAG 0x22
220:
221: /*
222: * Here are some scsi specific ioctl commands which are sometimes useful.
223: */
224: /* These are a few other constants only used by scsi devices */
225: /* Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 */
226:
227: #define SCSI_IOCTL_GET_IDLUN 0x5382 /* conflicts with CDROMAUDIOBUFSIZ */
228:
229: /* Used to turn on and off tagged queuing for scsi devices */
230:
231: #define SCSI_IOCTL_TAGGED_ENABLE 0x5383
232: #define SCSI_IOCTL_TAGGED_DISABLE 0x5384
233:
234: /* Used to obtain the host number of a device. */
235: #define SCSI_IOCTL_PROBE_HOST 0x5385
236:
237: /* Used to get the bus number for a device */
238: #define SCSI_IOCTL_GET_BUS_NUMBER 0x5386
239:
240: /* Used to get the PCI location of a device */
241: #define SCSI_IOCTL_GET_PCI 0x5387
242:
243: /*
244: * Overrides for Emacs so that we follow Linus's tabbing style.
245: * Emacs will notice this stuff at the end of the file and automatically
246: * adjust the settings for this buffer only. This must remain at the end
247: * of the file.
248: * ---------------------------------------------------------------------------
249: * Local variables:
250: * c-indent-level: 4
251: * c-brace-imaginary-offset: 0
252: * c-brace-offset: -4
253: * c-argdecl-indent: 4
254: * c-label-offset: -4
255: * c-continued-statement-offset: 4
256: * c-continued-brace-offset: 0
257: * indent-tabs-mode: nil
258: * tab-width: 8
259: * End:
260: */
261:
262: #endif
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