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author | Cem Keylan <cem@ckyln.com> | 2020-10-16 17:41:25 +0300 |
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committer | Cem Keylan <cem@ckyln.com> | 2020-10-16 17:41:25 +0300 |
commit | e2abcdca396661cbe0ae2ddb13d5c2b85682c13a (patch) | |
tree | acf9b5c80b645617f882c45224c6e07251711842 /sys/sys/chio.h | |
download | otools-e2abcdca396661cbe0ae2ddb13d5c2b85682c13a.tar.gz |
initial commit
Diffstat (limited to 'sys/sys/chio.h')
-rw-r--r-- | sys/sys/chio.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/sys/sys/chio.h b/sys/sys/chio.h new file mode 100644 index 0000000..88afaa9 --- /dev/null +++ b/sys/sys/chio.h @@ -0,0 +1,176 @@ +/* $OpenBSD: chio.h,v 1.7 2006/05/31 03:01:44 beck Exp $ */ +/* $NetBSD: chio.h,v 1.8 1996/04/03 00:25:21 thorpej Exp $ */ + +/* + * Copyright (c) 1996 Jason R. Thorpe <thorpej@and.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgements: + * This product includes software developed by Jason R. Thorpe + * for And Communications, http://www.and.com/ + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _SYS_CHIO_H_ +#define _SYS_CHIO_H_ + +/* + * Element types. Used as "to" and "from" type indicators in move + * and exchange operations. + * + * Note that code in sys/scsi/ch.c relies on these values (uses them + * as offsets in an array, and other evil), so don't muck with them + * unless you know what you're doing. + */ +#define CHET_MT 0 /* medium transport (picker) */ +#define CHET_ST 1 /* storage transport (slot) */ +#define CHET_IE 2 /* import/export (portal) */ +#define CHET_DT 3 /* data transfer (drive) */ + +/* + * Maximum length of a volume identification string + */ +#define CH_VOLTAG_MAXLEN 32 + +/* + * Structure used to execute a MOVE MEDIUM command. + */ +struct changer_move { + int cm_fromtype; /* element type to move from */ + int cm_fromunit; /* logical unit of from element */ + int cm_totype; /* element type to move to */ + int cm_tounit; /* logical unit of to element */ + int cm_flags; /* misc. flags */ +}; + +/* cm_flags */ +#define CM_INVERT 0x01 /* invert media */ + +/* + * Structure used to execute an EXCHANGE MEDIUM command. In an + * exchange operation, the following steps occur: + * + * - media from source is moved to first destination. + * + * - media previously occupying first destination is moved + * to the second destination. + * + * The second destination may or may not be the same as the source. + * In the case of a simple exchange, the source and second destination + * are the same. + */ +struct changer_exchange { + int ce_srctype; /* element type of source */ + int ce_srcunit; /* logical unit of source */ + int ce_fdsttype; /* element type of first destination */ + int ce_fdstunit; /* logical unit of first destination */ + int ce_sdsttype; /* element type of second destination */ + int ce_sdstunit; /* logical unit of second destination */ + int ce_flags; /* misc. flags */ +}; + +/* ce_flags */ +#define CE_INVERT1 0x01 /* invert media 1 */ +#define CE_INVERT2 0x02 /* invert media 2 */ + +/* + * Structure used to execute a POSITION TO ELEMENT command. This + * moves the current picker in front of the specified element. + */ +struct changer_position { + int cp_type; /* element type */ + int cp_unit; /* logical unit of element */ + int cp_flags; /* misc. flags */ +}; + +/* cp_flags */ +#define CP_INVERT 0x01 /* invert picker */ + +/* + * Data returned by CHIOGPARAMS. + */ +struct changer_params { + int cp_curpicker; /* current picker */ + int cp_npickers; /* number of pickers */ + int cp_nslots; /* number of slots */ + int cp_nportals; /* number of import/export portals */ + int cp_ndrives; /* number of drives */ +}; + +struct changer_voltag { + u_char cv_volid[CH_VOLTAG_MAXLEN + 1]; + u_int16_t cv_serial; +}; + +struct changer_element_status { + int ces_type; /* element type */ + u_int8_t ces_flags; /* flags */ + struct changer_voltag ces_pvoltag; /* primary voltag */ + struct changer_voltag ces_avoltag; /* alternate voltag */ +}; + +/* + * Command used to get element status. + */ +struct changer_element_status_request { + int cesr_type; /* element type */ + int cesr_flags; +#define CESR_VOLTAGS 0x01 + + struct changer_element_status *cesr_data; /* pre-allocated data storage */ +}; + +/* + * Data returned by CHIOGSTATUS is an array of flags bytes. + * Not all flags have meaning for all element types. + */ +#define CESTATUS_FULL 0x01 /* element is full */ +#define CESTATUS_IMPEXP 0x02 /* media deposited by operator */ +#define CESTATUS_EXCEPT 0x04 /* element in abnormal state */ +#define CESTATUS_ACCESS 0x08 /* media accessible by picker */ +#define CESTATUS_EXENAB 0x10 /* element supports exporting */ +#define CESTATUS_INENAB 0x20 /* element supports importing */ + +#define CESTATUS_PICKER_MASK 0x05 /* flags valid for pickers */ +#define CESTATUS_SLOT_MASK 0x0c /* flags valid for slots */ +#define CESTATUS_PORTAL_MASK 0x3f /* flags valid for portals */ +#define CESTATUS_DRIVE_MASK 0x0c /* flags valid for drives */ + +#define CESTATUS_BITS \ + "\20\6INEAB\5EXENAB\4ACCESS\3EXCEPT\2IMPEXP\1FULL" + +/* + * XXX we have to renumber this since it chashes w/ the + * cdio ioctls, O* interface goes away right after 3.3 + */ +#define CHIOMOVE _IOW('c', 0x41, struct changer_move) +#define CHIOEXCHANGE _IOW('c', 0x42, struct changer_exchange) +#define CHIOPOSITION _IOW('c', 0x43, struct changer_position) +#define CHIOGPICKER _IOR('c', 0x44, int) +#define CHIOSPICKER _IOW('c', 0x45, int) +#define CHIOGPARAMS _IOR('c', 0x46, struct changer_params) +#define CHIOGSTATUS _IOW('c', 0x48, struct changer_element_status_request) + +#endif /* _SYS_CHIO_H_ */ |