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Edit File : chio.h \| Size : 5.22 KB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note / / * ioctl interface for the scsi media changer driver / / changer element types / #define CHET_MT 0 / media transport element (robot) / #define CHET_ST 1 / storage element (media slots) / #define CHET_IE 2 / import/export element / #define CHET_DT 3 / data transfer element (tape/cdrom/whatever) / #define CHET_V1 4 / vendor specific #1 / #define CHET_V2 5 / vendor specific #2 / #define CHET_V3 6 / vendor specific #3 / #define CHET_V4 7 / vendor specific #4 / / * CHIOGPARAMS * query changer properties * * CHIOVGPARAMS * query vendor-specific element types * * accessing elements works by specifing type and unit of the element. * for example, storage elements are addressed with type = CHET_ST and * unit = 0 .. cp_nslots-1 * / struct changer_params { int cp_curpicker; / current transport element / int cp_npickers; / number of transport elements (CHET_MT) / int cp_nslots; / number of storage elements (CHET_ST) / int cp_nportals; / number of import/export elements (CHET_IE) / int cp_ndrives; / number of data transfer elements (CHET_DT) / }; struct changer_vendor_params { int cvp_n1; / number of vendor specific elems (CHET_V1) / char cvp_label1[16]; int cvp_n2; / number of vendor specific elems (CHET_V2) / char cvp_label2[16]; int cvp_n3; / number of vendor specific elems (CHET_V3) / char cvp_label3[16]; int cvp_n4; / number of vendor specific elems (CHET_V4) / char cvp_label4[16]; int reserved[8]; }; / * CHIOMOVE * move a medium from one element to another / struct changer_move { int cm_fromtype; / type/unit of source element / int cm_fromunit; int cm_totype; / type/unit of destination element / int cm_tounit; int cm_flags; }; #define CM_INVERT 1 / flag: rotate media (for double-sided like MOD) / / * CHIOEXCHANGE * move one medium from element #1 to element #2, * and another one from element #2 to element #3. * element #1 and #3 are allowed to be identical. / struct changer_exchange { int ce_srctype; / type/unit of element #1 / int ce_srcunit; int ce_fdsttype; / type/unit of element #2 / int ce_fdstunit; int ce_sdsttype; / type/unit of element #3 / int ce_sdstunit; int ce_flags; }; #define CE_INVERT1 1 #define CE_INVERT2 2 / * CHIOPOSITION * move the transport element (robot arm) to a specific element. / struct changer_position { int cp_type; int cp_unit; int cp_flags; }; #define CP_INVERT 1 / * CHIOGSTATUS * get element status for all elements of a specific type / struct changer_element_status { int ces_type; unsigned char ces_data; }; #define CESTATUS_FULL 0x01 /* full / #define CESTATUS_IMPEXP 0x02 / media was imported (inserted by sysop) / #define CESTATUS_EXCEPT 0x04 / error condition / #define CESTATUS_ACCESS 0x08 / access allowed / #define CESTATUS_EXENAB 0x10 / element can export media / #define CESTATUS_INENAB 0x20 / element can import media / / * CHIOGELEM * get more detailed status information for a single element / struct changer_get_element { int cge_type; / type/unit / int cge_unit; int cge_status; / status / int cge_errno; / errno / int cge_srctype; / source element of the last move/exchange / int cge_srcunit; int cge_id; / scsi id (for data transfer elements) / int cge_lun; / scsi lun (for data transfer elements) / char cge_pvoltag[36]; / primary volume tag / char cge_avoltag[36]; / alternate volume tag / int cge_flags; }; / flags / #define CGE_ERRNO 0x01 / errno available / #define CGE_INVERT 0x02 / media inverted / #define CGE_SRC 0x04 / media src available / #define CGE_IDLUN 0x08 / ID+LUN available / #define CGE_PVOLTAG 0x10 / primary volume tag available / #define CGE_AVOLTAG 0x20 / alternate volume tag available / / * CHIOSVOLTAG * set volume tag / struct changer_set_voltag { int csv_type; / type/unit / int csv_unit; char csv_voltag[36]; / volume tag / int csv_flags; }; #define CSV_PVOLTAG 0x01 / primary volume tag / #define CSV_AVOLTAG 0x02 / alternate volume tag / #define CSV_CLEARTAG 0x04 / clear volume tag / / ioctls / #define CHIOMOVE _IOW('c', 1,struct changer_move) #define CHIOEXCHANGE _IOW('c', 2,struct changer_exchange) #define CHIOPOSITION _IOW('c', 3,struct changer_position) #define CHIOGPICKER _IOR('c', 4,int) / not impl. / #define CHIOSPICKER _IOW('c', 5,int) / not impl. / #define CHIOGPARAMS _IOR('c', 6,struct changer_params) #define CHIOGSTATUS _IOW('c', 8,struct changer_element_status) #define CHIOGELEM _IOW('c',16,struct changer_get_element) #define CHIOINITELEM _IO('c',17) #define CHIOSVOLTAG _IOW('c',18,struct changer_set_voltag) #define CHIOGVPARAMS _IOR('c',19,struct changer_vendor_params) / ---------------------------------------------------------------------- / / * Local variables: * c-basic-offset: 8 * End: */ Back

Edit File : chio.h | Size : 5.22 KB

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * ioctl interface for the scsi media changer driver
 */

/* changer element types */
#define CHET_MT   0	/* media transport element (robot) */
#define CHET_ST   1	/* storage element (media slots) */
#define CHET_IE   2	/* import/export element */
#define CHET_DT   3	/* data transfer element (tape/cdrom/whatever) */
#define CHET_V1   4	/* vendor specific #1 */
#define CHET_V2   5	/* vendor specific #2 */
#define CHET_V3   6	/* vendor specific #3 */
#define CHET_V4   7	/* vendor specific #4 */

/*
 * CHIOGPARAMS
 *    query changer properties
 *
 * CHIOVGPARAMS
 *    query vendor-specific element types
 *
 *    accessing elements works by specifing type and unit of the element.
 *    for example, storage elements are addressed with type = CHET_ST and
 *    unit = 0 .. cp_nslots-1
 *
 */
struct changer_params {
	int cp_curpicker;  /* current transport element */
	int cp_npickers;   /* number of transport elements      (CHET_MT) */
	int cp_nslots;     /* number of storage elements        (CHET_ST) */
	int cp_nportals;   /* number of import/export elements  (CHET_IE) */
	int cp_ndrives;    /* number of data transfer elements  (CHET_DT) */
};
struct changer_vendor_params {
	int  cvp_n1;       /* number of vendor specific elems   (CHET_V1) */
	char cvp_label1[16];
	int  cvp_n2;       /* number of vendor specific elems   (CHET_V2) */
	char cvp_label2[16];
	int  cvp_n3;       /* number of vendor specific elems   (CHET_V3) */
	char cvp_label3[16];
	int  cvp_n4;       /* number of vendor specific elems   (CHET_V4) */
	char cvp_label4[16];
	int  reserved[8];
};

/*
 * CHIOMOVE
 *    move a medium from one element to another
 */
struct changer_move {
	int cm_fromtype;	/* type/unit of source element */
	int cm_fromunit;	
	int cm_totype;	/* type/unit of destination element */
	int cm_tounit;
	int cm_flags;
};
#define CM_INVERT   1   /* flag: rotate media (for double-sided like MOD) */

/*
 * CHIOEXCHANGE
 *    move one medium from element #1 to element #2,
 *    and another one from element #2 to element #3.
 *    element #1 and #3 are allowed to be identical.
 */
struct changer_exchange {
	int ce_srctype;	    /* type/unit of element #1 */
	int ce_srcunit;
	int ce_fdsttype;    /* type/unit of element #2 */
	int ce_fdstunit;
	int ce_sdsttype;    /* type/unit of element #3 */
	int ce_sdstunit;
	int ce_flags;
};
#define CE_INVERT1   1
#define CE_INVERT2   2

/*
 * CHIOPOSITION
 *    move the transport element (robot arm) to a specific element.
 */
struct changer_position {
	int cp_type;
	int cp_unit;
	int cp_flags;
};
#define CP_INVERT   1

/*
 * CHIOGSTATUS
 *    get element status for all elements of a specific type
 */
struct changer_element_status {
	int             ces_type;
	unsigned char   *ces_data;
};
#define CESTATUS_FULL     0x01 /* full */
#define CESTATUS_IMPEXP   0x02	/* media was imported (inserted by sysop) */
#define CESTATUS_EXCEPT   0x04	/* error condition */
#define CESTATUS_ACCESS   0x08	/* access allowed */
#define CESTATUS_EXENAB   0x10	/* element can export media */
#define CESTATUS_INENAB   0x20	/* element can import media */

/*
 * CHIOGELEM
 *    get more detailed status information for a single element
 */
struct changer_get_element {
	int	cge_type;	 /* type/unit */
	int	cge_unit;
	int	cge_status;      /* status */
	int     cge_errno;       /* errno */
	int     cge_srctype;     /* source element of the last move/exchange */
	int     cge_srcunit;
	int     cge_id;          /* scsi id  (for data transfer elements) */
	int     cge_lun;         /* scsi lun (for data transfer elements) */
	char    cge_pvoltag[36]; /* primary volume tag */
	char    cge_avoltag[36]; /* alternate volume tag */
	int     cge_flags;
};
/* flags */
#define CGE_ERRNO     0x01       /* errno available       */
#define CGE_INVERT    0x02       /* media inverted        */
#define CGE_SRC       0x04       /* media src available   */
#define CGE_IDLUN     0x08       /* ID+LUN available      */
#define CGE_PVOLTAG   0x10       /* primary volume tag available */
#define CGE_AVOLTAG   0x20       /* alternate volume tag available */

/*
 * CHIOSVOLTAG
 *    set volume tag
 */
struct changer_set_voltag {
	int	csv_type;	 /* type/unit */
	int	csv_unit;
	char    csv_voltag[36];  /* volume tag */
	int     csv_flags;
};
#define CSV_PVOLTAG   0x01       /* primary volume tag */
#define CSV_AVOLTAG   0x02       /* alternate volume tag */
#define CSV_CLEARTAG  0x04       /* clear volume tag */

/* ioctls */
#define CHIOMOVE       _IOW('c', 1,struct changer_move)
#define CHIOEXCHANGE   _IOW('c', 2,struct changer_exchange)
#define CHIOPOSITION   _IOW('c', 3,struct changer_position)
#define CHIOGPICKER    _IOR('c', 4,int)                        /* not impl. */
#define CHIOSPICKER    _IOW('c', 5,int)                        /* not impl. */
#define CHIOGPARAMS    _IOR('c', 6,struct changer_params)
#define CHIOGSTATUS    _IOW('c', 8,struct changer_element_status)
#define CHIOGELEM      _IOW('c',16,struct changer_get_element)
#define CHIOINITELEM   _IO('c',17)
#define CHIOSVOLTAG    _IOW('c',18,struct changer_set_voltag)
#define CHIOGVPARAMS   _IOR('c',19,struct changer_vendor_params)

/* ---------------------------------------------------------------------- */

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */

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