$NetBSD: empb.4,v 1.13 2017/02/17 22:24:45 christos Exp $
Copyright (c) 2012 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Radoslaw Kujawa.
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.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``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 FOUNDATION OR CONTRIBUTORS
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.
.Dd February 17, 2017 .Dt EMPB 4 amiga .Os .Sh NAME .Nm empb .Nd ELBOX Mediator 1200 PCI bridge driver .Sh SYNOPSIS .Cd "empb0 at zbus0" .Cd "emmem0 at zbus0" .Cd "empm0 at zbus0" .Cd "pci* at empb0" .Cd "options PCI_NETBSD_CONFIGURE" .Sh DESCRIPTION The .Nm driver provides support for the PCI bus present on Mediator 1200 bridge for Amiga 1200. .Sh HARDWARE The .Nm driver supports the following hardware: l -tag -offset indent t ELBOX Mediator PCI 1200 t ELBOX Mediator PCI 1200 LT2 t ELBOX Mediator PCI 1200 LT4 t ELBOX Mediator PCI 1200 SX t ELBOX Mediator PCI 1200 TX .El .Sh DIAGNOSTICS l -diag t empb: linear space mapping might not work The PCI card driver is trying map memory space with the .Dv BUS_SPACE_MAP_LINEAR flag. Due to the windowed design of Mediator, it is expected to fail miserably if normal memory space access methods (e.g., pointer dereference) are used instead of .Xr bus_space 9 methods. t empb%d: couldn't find memory space, check your WINDOW jumper PCI memory space access is disabled on a hardware level. The .Nm driver will work anyway, but only PCI I/O space will be accessible. To enable memory space set the WINDOW jumper to 4MB or 8MB. .El .Sh SEE ALSO .Xr amiga/em4k 4 , .Xr amiga/mppb 4 , .Xr amiga/p5pb 4 , .Xr pci 4 .Sh HISTORY The .Nm device first appeared in .Nx 7.0 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com . It was developed using information obtained through reverse engineering by .An Frank Wille and .An Radoslaw Kujawa . The authors have no access to official documentation (which is only available under NDA). .Sh CAVEATS Mediator ZIV might work but is untested. .Sh BUGS DMA to host memory is not supported. This is a hardware limitation. It is possible to implement DMA through bounce buffers in graphics card memory, but this needs further research.
Copyright (c) 2012 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Radoslaw Kujawa.
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.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``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 FOUNDATION OR CONTRIBUTORS
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.
.Dd February 17, 2017 .Dt EMPB 4 amiga .Os .Sh NAME .Nm empb .Nd ELBOX Mediator 1200 PCI bridge driver .Sh SYNOPSIS .Cd "empb0 at zbus0" .Cd "emmem0 at zbus0" .Cd "empm0 at zbus0" .Cd "pci* at empb0" .Cd "options PCI_NETBSD_CONFIGURE" .Sh DESCRIPTION The .Nm driver provides support for the PCI bus present on Mediator 1200 bridge for Amiga 1200. .Sh HARDWARE The .Nm driver supports the following hardware: l -tag -offset indent t ELBOX Mediator PCI 1200 t ELBOX Mediator PCI 1200 LT2 t ELBOX Mediator PCI 1200 LT4 t ELBOX Mediator PCI 1200 SX t ELBOX Mediator PCI 1200 TX .El .Sh DIAGNOSTICS l -diag t empb: linear space mapping might not work The PCI card driver is trying map memory space with the .Dv BUS_SPACE_MAP_LINEAR flag. Due to the windowed design of Mediator, it is expected to fail miserably if normal memory space access methods (e.g., pointer dereference) are used instead of .Xr bus_space 9 methods. t empb%d: couldn't find memory space, check your WINDOW jumper PCI memory space access is disabled on a hardware level. The .Nm driver will work anyway, but only PCI I/O space will be accessible. To enable memory space set the WINDOW jumper to 4MB or 8MB. .El .Sh SEE ALSO .Xr amiga/em4k 4 , .Xr amiga/mppb 4 , .Xr amiga/p5pb 4 , .Xr pci 4 .Sh HISTORY The .Nm device first appeared in .Nx 7.0 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com . It was developed using information obtained through reverse engineering by .An Frank Wille and .An Radoslaw Kujawa . The authors have no access to official documentation (which is only available under NDA). .Sh CAVEATS Mediator ZIV might work but is untested. .Sh BUGS DMA to host memory is not supported. This is a hardware limitation. It is possible to implement DMA through bounce buffers in graphics card memory, but this needs further research.