1 /* $NetBSD: ldvar.h,v 1.6 2002/07/20 11:28:07 hannken 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 struct ld_softc { 43 struct device sc_dv; 44 struct disk sc_dk; 45 struct bufq_state sc_bufq; 46 #if NRND > 0 47 rndsource_element_t sc_rnd_source; 48 #endif 49 int sc_queuecnt; /* current h/w queue depth */ 50 int sc_ncylinders; /* # cylinders */ 51 int sc_nheads; /* # heads */ 52 int sc_nsectors; /* # sectors per track */ 53 54 /* 55 * The following are filled by hardware specific attachment code. 56 */ 57 int sc_flags; /* control flags */ 58 int sc_secperunit; /* # sectors in total */ 59 int sc_secsize; /* sector size in bytes */ 60 int sc_maxxfer; /* max xfer size in bytes */ 61 int sc_maxqueuecnt; /* maximum h/w queue depth */ 62 63 int (*sc_dump)(struct ld_softc *, void *, int, int); 64 int (*sc_flush)(struct ld_softc *); 65 int (*sc_start)(struct ld_softc *, struct buf *); 66 }; 67 68 #define LDF_ENABLED 0x01 /* device enabled */ 69 #define LDF_LKHELD 0x02 /* lock held */ 70 #define LDF_LKWANTED 0x04 /* lock wanted */ 71 #define LDF_WLABEL 0x08 /* label is writable */ 72 #define LDF_LABELLING 0x10 /* writing label */ 73 #define LDF_DRAIN 0x20 /* maxqueuecnt has changed; drain */ 74 #define LDF_DETACH 0x40 /* detach pending */ 75 76 int ldadjqparam(struct ld_softc *, int); 77 void ldattach(struct ld_softc *); 78 int ldbegindetach(struct ld_softc *, int); 79 void ldenddetach(struct ld_softc *); 80 void lddone(struct ld_softc *, struct buf *); 81 82 #endif /* !_DEV_LDVAR_H_ */ 83