2 * Copyright (c) 1996 Jason R. Thorpe <thorpej@and.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgements:
15 * This product includes software developed by Jason R. Thorpe
16 * for And Communications, http://www.and.com/
17 * 4. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/sys/sys/chio.h,v 1.15 1999/12/29 04:24:38 peter Exp $
33 * $DragonFly: src/sys/sys/chio.h,v 1.4 2007/11/25 17:59:22 pavalos Exp $
40 #include <sys/types.h>
42 #ifndef _SYS_IOCCOM_H_
43 #include <sys/ioccom.h>
47 * Element types. Used as "to" and "from" type indicators in move
48 * and exchange operations.
50 * Note that code in sys/scsi/ch.c relies on these values (uses them
51 * as offsets in an array, and other evil), so don't muck with them
52 * unless you know what you're doing.
54 #define CHET_MT 0 /* medium transport (picker) */
55 #define CHET_ST 1 /* storage transport (slot) */
56 #define CHET_IE 2 /* import/export (portal) */
57 #define CHET_DT 3 /* data transfer (drive) */
58 #define CHET_MAX CHET_DT
61 * Maximum length of a volume identification string
63 #define CH_VOLTAG_MAXLEN 32
66 * Structure used to execute a MOVE MEDIUM command.
69 u_int16_t cm_fromtype; /* element type to move from */
70 u_int16_t cm_fromunit; /* logical unit of from element */
71 u_int16_t cm_totype; /* element type to move to */
72 u_int16_t cm_tounit; /* logical unit of to element */
73 u_int16_t cm_flags; /* misc. flags */
77 #define CM_INVERT 0x01 /* invert media */
80 * Structure used to execute an EXCHANGE MEDIUM command. In an
81 * exchange operation, the following steps occur:
83 * - media from source is moved to first destination.
85 * - media previously occupying first destination is moved
86 * to the second destination.
88 * The second destination may or may not be the same as the source.
89 * In the case of a simple exchange, the source and second destination
92 struct changer_exchange {
93 u_int16_t ce_srctype; /* element type of source */
94 u_int16_t ce_srcunit; /* logical unit of source */
95 u_int16_t ce_fdsttype; /* element type of first destination */
96 u_int16_t ce_fdstunit; /* logical unit of first destination */
97 u_int16_t ce_sdsttype; /* element type of second destination */
98 u_int16_t ce_sdstunit; /* logical unit of second destination */
99 u_int16_t ce_flags; /* misc. flags */
103 #define CE_INVERT1 0x01 /* invert media 1 */
104 #define CE_INVERT2 0x02 /* invert media 2 */
107 * Structure used to execute a POSITION TO ELEMENT command. This
108 * moves the current picker in front of the specified element.
110 struct changer_position {
111 u_int16_t cp_type; /* element type */
112 u_int16_t cp_unit; /* logical unit of element */
113 u_int16_t cp_flags; /* misc. flags */
117 #define CP_INVERT 0x01 /* invert picker */
120 * Data returned by CHIOGPARAMS.
122 struct changer_params {
123 u_int16_t cp_npickers; /* number of pickers */
124 u_int16_t cp_nslots; /* number of slots */
125 u_int16_t cp_nportals; /* number of import/export portals */
126 u_int16_t cp_ndrives; /* number of drives */
130 * Command used to get element status.
133 struct changer_voltag {
134 u_char cv_volid[CH_VOLTAG_MAXLEN+1];
138 typedef struct changer_voltag changer_voltag_t;
141 * Flags definitions for ces_status
142 * Not all flags have meaning for all element types.
145 CES_STATUS_FULL = 0x001, /* element is full */
146 CES_STATUS_IMPEXP = 0x002, /* media deposited by operator */
147 CES_STATUS_EXCEPT = 0x004, /* element in abnormal state */
148 CES_PICKER_MASK = 0x005, /* flags valid for pickers */
149 CES_STATUS_ACCESS = 0x008, /* media accessible by picker */
150 CES_SLOT_MASK = 0x00c, /* flags valid for slots */
151 CES_DRIVE_MASK = 0x00c, /* flags valid for drives */
152 CES_STATUS_EXENAB = 0x010, /* element supports exporting */
153 CES_STATUS_INENAB = 0x020, /* element supports importing */
154 CES_PORTAL_MASK = 0x03f, /* flags valid for portals */
155 CES_INVERT = 0x040, /* invert bit */
156 CES_SOURCE_VALID = 0x080, /* source address (ces_source) valid */
157 CES_SCSIID_VALID = 0x100, /* ces_scsi_id is valid */
158 CES_LUN_VALID = 0x200 /* ces_scsi_lun is valid */
161 struct changer_element_status {
162 u_int8_t ces_type; /* element type */
163 u_int16_t ces_addr; /* logical element address */
164 u_int16_t ces_int_addr; /* changer element address */
165 ces_status_flags ces_flags; /*
166 * see CESTATUS definitions
169 u_int8_t ces_sensecode; /*
171 * code for element */
172 u_int8_t ces_sensequal; /*
176 u_int8_t ces_source_type; /*
180 u_int16_t ces_source_addr; /*
181 * source address of medium
183 changer_voltag_t ces_pvoltag; /* primary volume tag */
184 changer_voltag_t ces_avoltag; /* alternate volume tag */
185 u_int8_t ces_scsi_id; /* SCSI id of element */
186 u_int8_t ces_scsi_lun; /* SCSI lun of element */
189 struct changer_element_status_request {
190 u_int16_t cesr_element_type;
191 u_int16_t cesr_element_base;
192 u_int16_t cesr_element_count;
194 u_int16_t cesr_flags;
195 #define CESR_VOLTAGS 0x01
197 struct changer_element_status *cesr_element_status;
201 struct changer_set_voltag_request {
205 u_int16_t csvr_flags;
206 #define CSVR_MODE_MASK 0x0f /* mode mask, acceptable modes below: */
207 #define CSVR_MODE_SET 0x00 /* set volume tag if not set */
208 #define CSVR_MODE_REPLACE 0x01 /* unconditionally replace volume tag */
209 #define CSVR_MODE_CLEAR 0x02 /* clear volume tag */
211 #define CSVR_ALTERNATE 0x10 /* set to work with alternate voltag */
213 changer_voltag_t csvr_voltag;
217 #define CESTATUS_BITS \
218 "\20\6INEAB\5EXENAB\4ACCESS\3EXCEPT\2IMPEXP\1FULL"
220 #define CHIOMOVE _IOW('c', 0x01, struct changer_move)
221 #define CHIOEXCHANGE _IOW('c', 0x02, struct changer_exchange)
222 #define CHIOPOSITION _IOW('c', 0x03, struct changer_position)
223 #define CHIOGPICKER _IOR('c', 0x04, int)
224 #define CHIOSPICKER _IOW('c', 0x05, int)
225 #define CHIOGPARAMS _IOR('c', 0x06, struct changer_params)
226 #define CHIOIELEM _IOW('c', 0x07, u_int32_t)
227 #define CHIOGSTATUS _IOW('c', 0x08, struct changer_element_status_request)
228 #define CHIOSETVOLTAG _IOW('c', 0x09, struct changer_set_voltag_request)
230 #endif /* !_SYS_CHIO_H_ */