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Annotation of sys/scsi/sdvar.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: sdvar.h,v 1.11 2007/06/23 19:19:49 krw Exp $  */
                      2: /*     $NetBSD: sdvar.h,v 1.7 1998/08/17 00:49:03 mycroft Exp $        */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Charles M. Hannum.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: /*
                     41:  * Originally written by Julian Elischer (julian@dialix.oz.au)
                     42:  * for TRW Financial Systems for use under the MACH(2.5) operating system.
                     43:  *
                     44:  * TRW Financial Systems, in accordance with their agreement with Carnegie
                     45:  * Mellon University, makes this software available to CMU to distribute
                     46:  * or use in any manner that they see fit as long as this message is kept with
                     47:  * the software. For this reason TFS also grants any other persons or
                     48:  * organisations permission to use or modify this software.
                     49:  *
                     50:  * TFS supplies this software to be publicly redistributed
                     51:  * on the understanding that TFS is not responsible for the correct
                     52:  * functioning of this software in any circumstances.
                     53:  *
                     54:  * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
                     55:  */
                     56:
                     57: #define        SDRETRIES       4
                     58:
                     59: struct sd_softc {
                     60:        struct device sc_dev;
                     61:        struct disk sc_dk;
                     62:
                     63:        int flags;
                     64: #define        SDF_LOCKED      0x01
                     65: #define        SDF_WANTED      0x02
                     66: #define        SDF_WLABEL      0x04            /* label is writable */
                     67: #define        SDF_LABELLING   0x08            /* writing label */
                     68: #define        SDF_ANCIENT     0x10            /* disk is ancient; for minphys */
                     69: #define        SDF_DIRTY       0x20            /* disk is dirty; needs cache flush */
                     70: #define        SDF_FLUSHING    0x40            /* flushing, for sddone() */
                     71:        struct scsi_link *sc_link;      /* contains our targ, lun, etc. */
                     72:        struct disk_parms {
                     73:                u_long  heads;          /* number of heads */
                     74:                u_long  cyls;           /* number of cylinders */
                     75:                u_long  sectors;        /* number of sectors/track */
                     76:                u_long  blksize;        /* number of bytes/sector */
                     77:                u_long  rot_rate;       /* rotational rate, in RPM */
                     78:                daddr64_t       disksize;       /* total number sectors */
                     79:        } params;
                     80:        struct buf buf_queue;
                     81:        void *sc_sdhook;                /* our shutdown hook */
                     82:        struct timeout sc_timeout;
                     83: };
                     84:
                     85: #define        SDGP_RESULT_OK          0       /* parameters obtained */
                     86: #define        SDGP_RESULT_OFFLINE     1       /* no media, or otherwise losing */