117 lines
3.6 KiB
Groff
117 lines
3.6 KiB
Groff
.\" $NetBSD: efa.4,v 1.8 2014/03/18 18:20:39 riastradh Exp $
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.\"
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.\" Copyright (c) 2011 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Radoslaw Kujawa.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd April 13, 2012
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.Dt EFA 4 amiga
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.Os
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.Sh NAME
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.Nm efa
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.Nd ELBOX FastATA 1200 IDE disk controller driver
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.Sh SYNOPSIS
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.Cd "efa0 at mainbus0"
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.\".Cd "options EFA_32BIT_IO"
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.\".Cd "options EFA_NO_INTR"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the FastATA 1200 family of IDE controllers and
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provides the interface with the hardware for the
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.Xr ata 4
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driver.
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PIO modes 0, 3, 4 and 5 are supported.
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.\".Pp
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.\"The following kernel configuration options are available:
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.\".Bl -ohang
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.\".It Cd options EFA_32BIT_IO
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.\"Use 32-bit data port.
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.\".It Cd options EFA_NO_INTR
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.\"Disable hardware interrupt support.
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.\".El
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.Sh HARDWARE
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The
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.Nm
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driver supports the following hardware:
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.Bl -tag -width "ELBOX FastATA 1200 Mk-IV" -offset indent
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.It Em ELBOX FastATA 1200 Mk-III
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.It Em ELBOX FastATA 1200 Mk-IV
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.It Em ELBOX FastATA 1200 Mk-IV CF/SATA
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.El
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.Sh SEE ALSO
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.Xr ata 4 ,
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.Xr wdc 4
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.Sh HISTORY
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The
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.Nm
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device first appeared in
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.Nx 6.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com .
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.Sh CAVEATS
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Older versions of FastATA 1200 are NOT supported:
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.Bl -tag -width "ELBOX FastATA 1200 Mk-II" -offset indent
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.It Em ELBOX FastATA 1200 Mk-I
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.It Em ELBOX FastATA 1200 Lite
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.It Em ELBOX FastATA 1200 GOLD
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.It Em ELBOX FastATA 1200 Mk-II
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.El
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.Pp
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These devices do not generate hardware interrupts and need to be driven in
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non-standard polling mode.
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Code needed to support it is present in driver but does not work correctly.
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.Pp
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Some of the above devices were also marketed under PowerFlyer and Winner brands.
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.Pp
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The onboard Gayle IDE controller can not be used when FastATA is installed and
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therefore, the
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.Nm
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driver will not coexist with
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.Xr wdc 4
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driver attached to
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.Xr mainbus 4 .
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Both
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.Nm
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and
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.Xr wdc 4
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can be enabled in the same kernel, but only one will attach (depending on the
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return value of probe function in the
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.Nm
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driver).
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.Pp
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DMA modes are not supported, this is a hardware limitation.
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.Sh BUGS
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Performance is worse than with official AmigaOS driver from ELBOX.
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.Pp
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Disks partitioned in split mode, which is specific to official AmigaOS FastATA
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driver, are not recognized in
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.Nx .
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