1.\" $OpenBSD: wdc.4,v 1.16 2007/05/31 19:19:53 jmc Exp $ 2.\" $NetBSD: wdc.4,v 1.4 1999/05/19 14:44:02 bouyer Exp $ 3.\" 4.\" Copyright (c) 1998 Manuel Bouyer. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.Dd $Mdocdate: May 31 2007 $ 35.Dt WDC 4 36.Os 37.Sh NAME 38.Nm wdc 39.Nd WD100x compatible hard disk controller driver 40.Sh SYNOPSIS 41.Cd "# alpha/i386" 42.Cd "wdc0 at isa? port 0x1f0 irq 14 flags 0x00" 43.Cd "wdc1 at isa? port 0x170 irq 15 flags 0x00" 44.Cd "wdc* at isapnp?" 45.Pp 46.Cd "# macppc" 47.Cd "wdc* at macobio?" 48.Cd "wdc* at kauaiata?" 49.Pp 50.Cd "# landisk" 51.Cd wdc0 at obio? port 0x14000000 irq 10 52.Pp 53.Cd "# all architectures" 54.Cd "wdc* at pcmcia?" 55.Pp 56.Cd "atapiscsi* at wdc?* flags 0x0000" 57.Cd "wd* at wdc? flags 0x0000" 58.Sh DESCRIPTION 59The 60.Nm 61driver provides the basic functions for the 62.Xr wd 4 63and 64.Xr atapiscsi 4 65drivers. 66It supports IDE and EIDE controllers, as well as MFM, RLL, and ESDI on 67the ISA bus. 68PCI IDE controllers in legacy mode are also supported, but the 69.Xr pciide 4 70driver may provide more functionality. 71.Pp 72For the 73.Xr isa 4 74front-end, setting 75.Cm flags 76to 0x01 enables 32-bit I/O negotiation. 77This is known to cause problems with some motherboards. 78.Sh SEE ALSO 79.Xr atapiscsi 4 , 80.Xr intro 4 , 81.Xr isa 4 , 82.Xr isapnp 4 , 83.Xr macobio 4 , 84.Xr obio 4 , 85.Xr pciide 4 , 86.Xr pcmcia 4 , 87.Xr scsi 4 , 88.Xr wd 4 89