1 /* $NetBSD: ldvar.h,v 1.12 2007/02/09 21:55:26 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 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 #ifndef _DEV_LDVAR_H_ 40 #define _DEV_LDVAR_H_ 41 42 #include <sys/mutex.h> 43 44 struct ld_softc { 45 struct device sc_dv; 46 struct disk sc_dk; 47 struct bufq_state *sc_bufq; 48 kmutex_t sc_mutex; 49 #if NRND > 0 50 rndsource_element_t sc_rnd_source; 51 #endif 52 int sc_queuecnt; /* current h/w queue depth */ 53 int sc_ncylinders; /* # cylinders */ 54 int sc_nheads; /* # heads */ 55 int sc_nsectors; /* # sectors per track */ 56 57 /* 58 * The following are filled by hardware specific attachment code. 59 */ 60 int sc_flags; /* control flags */ 61 uint64_t sc_secperunit; /* # sectors in total */ 62 int sc_secsize; /* sector size in bytes */ 63 int sc_maxxfer; /* max xfer size in bytes */ 64 int sc_maxqueuecnt; /* maximum h/w queue depth */ 65 66 int (*sc_dump)(struct ld_softc *, void *, int, int); 67 int (*sc_flush)(struct ld_softc *); 68 int (*sc_start)(struct ld_softc *, struct buf *); 69 }; 70 71 #define LDF_ENABLED 0x001 /* device enabled */ 72 #define LDF_WLABEL 0x008 /* label is writable */ 73 #define LDF_LABELLING 0x010 /* writing label */ 74 #define LDF_DRAIN 0x020 /* maxqueuecnt has changed; drain */ 75 #define LDF_DETACH 0x040 /* detach pending */ 76 #define LDF_KLABEL 0x080 /* keep label on close */ 77 #define LDF_VLABEL 0x100 /* label is valid */ 78 79 int ldadjqparam(struct ld_softc *, int); 80 void ldattach(struct ld_softc *); 81 int ldbegindetach(struct ld_softc *, int); 82 void ldenddetach(struct ld_softc *); 83 void lddone(struct ld_softc *, struct buf *); 84 85 #endif /* !_DEV_LDVAR_H_ */ 86