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.Dd April 13, 2012 .Dt EFA 4 amiga .Os .Sh NAME .Nm efa .Nd ELBOX FastATA 1200 IDE disk controller driver .Sh SYNOPSIS .Cd "efa0 at mainbus0" .Cd "options EFA_32BIT_IO"
.Cd "options EFA_NO_INTR"
.Sh DESCRIPTION The .Nm driver provides support for the FastATA 1200 family of IDE controllers and provides the interface with the hardware for the .Xr ata 4 driver. PIO modes 0, 3, 4 and 5 are supported. .Pp
The following kernel configuration options are available:
.Bl -ohang
.It Cd options EFA_32BIT_IO
Use 32-bit data port.
.It Cd options EFA_NO_INTR
Disable hardware interrupt support.
.El
.Sh HARDWARE The .Nm driver supports the following hardware: l -tag -width "ELBOX FastATA 1200 Mk-IV" -offset indent t Em ELBOX FastATA 1200 Mk-III t Em ELBOX FastATA 1200 Mk-IV t Em ELBOX FastATA 1200 Mk-IV CF/SATA .El .Sh SEE ALSO .Xr ata 4 , .Xr wdc 4 .Sh HISTORY The .Nm device first appeared in .Nx 6.0 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com . .Sh CAVEATS Older versions of FastATA 1200 are NOT supported: l -tag -width "ELBOX FastATA 1200 Mk-II" -offset indent t Em ELBOX FastATA 1200 Mk-I t Em ELBOX FastATA 1200 Lite t Em ELBOX FastATA 1200 GOLD t Em ELBOX FastATA 1200 Mk-II .El
p These devices do not generate hardware interrupts and need to be driven in non-standard polling mode. Code needed to support it is present in driver but does not work correctly.
p Some of the above devices were also marketed under PowerFlyer and Winner brands.
p The onboard Gayle IDE controller can not be used when FastATA is installed and therefore, the .Nm driver will not coexist with .Xr wdc 4 driver attached to .Xr mainbus 4 . Both .Nm and .Xr wdc 4 can be enabled in the same kernel, but only one will attach (depending on the return value of probe function in the .Nm driver).
p DMA modes are not supported, this is a hardware limitation. .Sh BUGS Performance is worse than with official AmigaOS driver from ELBOX.
p Disks partitioned in split mode, which is specific to official AmigaOS FastATA driver, are not recognized in .Nx .