1 /* $NetBSD: sdvar.h,v 1.17 2002/07/16 18:03:18 hannken Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Originally written by Julian Elischer (julian@dialix.oz.au) 41 * for TRW Financial Systems for use under the MACH(2.5) operating system. 42 * 43 * TRW Financial Systems, in accordance with their agreement with Carnegie 44 * Mellon University, makes this software available to CMU to distribute 45 * or use in any manner that they see fit as long as this message is kept with 46 * the software. For this reason TFS also grants any other persons or 47 * organisations permission to use or modify this software. 48 * 49 * TFS supplies this software to be publicly redistributed 50 * on the understanding that TFS is not responsible for the correct 51 * functioning of this software in any circumstances. 52 * 53 * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992 54 */ 55 56 #include "opt_scsi.h" 57 #include "rnd.h" 58 #if NRND > 0 59 #include <sys/rnd.h> 60 #endif 61 62 #ifndef SDRETRIES 63 #define SDRETRIES 4 64 #endif 65 66 #ifndef SD_IO_TIMEOUT 67 #define SD_IO_TIMEOUT (60 * 1000) 68 #endif 69 70 struct sd_ops; 71 72 struct sd_softc { 73 struct device sc_dev; 74 struct disk sc_dk; 75 76 int flags; 77 #define SDF_LOCKED 0x01 78 #define SDF_WANTED 0x02 79 #define SDF_WLABEL 0x04 /* label is writable */ 80 #define SDF_LABELLING 0x08 /* writing label */ 81 #define SDF_ANCIENT 0x10 /* disk is ancient; for minphys */ 82 #define SDF_DIRTY 0x20 /* disk is dirty; needs cache flush */ 83 #define SDF_FLUSHING 0x40 /* flushing, for sddone() */ 84 85 struct scsipi_periph *sc_periph;/* contains our targ, lun, etc. */ 86 87 struct disk_parms { 88 u_long heads; /* number of heads */ 89 u_long cyls; /* number of cylinders */ 90 u_long sectors; /* number of sectors/track */ 91 u_long blksize; /* number of bytes/sector */ 92 u_long disksize; /* total number sectors */ 93 u_long rot_rate; /* rotational rate, in RPM */ 94 } params; 95 96 struct bufq_state buf_queue; 97 u_int8_t type; 98 char name[16]; /* product name, for default disklabel */ 99 const struct sd_ops *sc_ops; /* our bus-dependent ops vector */ 100 101 void *sc_sdhook; /* our shutdown hook */ 102 103 #if NRND > 0 104 rndsource_element_t rnd_source; 105 #endif 106 }; 107 108 struct sd_ops { 109 int (*sdo_get_parms) __P((struct sd_softc *, struct disk_parms *, 110 int)); 111 int (*sdo_flush) __P((struct sd_softc *, int)); 112 int (*sdo_getcache) __P((struct sd_softc *, int *)); 113 int (*sdo_setcache) __P((struct sd_softc *, int)); 114 }; 115 #define SDGP_RESULT_OK 0 /* paramters obtained */ 116 #define SDGP_RESULT_OFFLINE 1 /* no media, or otherwise losing */ 117 #define SDGP_RESULT_UNFORMATTED 2 /* unformatted media (max params) */ 118 119 void sdattach __P((struct device *, struct sd_softc *, struct scsipi_periph *, 120 const struct sd_ops *)); 121 int sdactivate __P((struct device *, enum devact)); 122 int sddetach __P((struct device *, int)); 123