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Diffstat (limited to 'sys/dev/ata/ata-disk.h')
| -rw-r--r-- | sys/dev/ata/ata-disk.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sys/dev/ata/ata-disk.h b/sys/dev/ata/ata-disk.h new file mode 100644 index 000000000000..c602f2e06b2e --- /dev/null +++ b/sys/dev/ata/ata-disk.h @@ -0,0 +1,47 @@ +/*- + * Copyright (c) 1998 - 2006 Søren Schmidt <sos@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer, + * without modification, immediately at the beginning of the file. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* structure describing an ATA disk */ +struct ad_softc { + u_int64_t total_secs; /* total # of sectors (LBA) */ + u_int8_t heads; + u_int8_t sectors; + u_int32_t transfersize; /* size of each transfer */ + int num_tags; /* number of tags supported */ + int flags; /* drive flags */ +#define AD_F_LABELLING 0x0001 +#define AD_F_CHS_USED 0x0002 +#define AD_F_32B_ENABLED 0x0004 +#define AD_F_TAG_ENABLED 0x0008 +#define AD_F_RAID_SUBDISK 0x0010 + + struct disk *disk; /* disklabel/slice stuff */ +}; + +extern devclass_t ad_devclass; + |