Commit 00f3696f authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman Committed by Jakub Kicinski
Browse files

net: appletalk: remove cops support 



The COPS Appletalk support is very old, never said to actually work
properly, and the firmware code for the devices are under a very suspect
license.  Remove it all to clear up the license issue, if it is still
needed and actually used by anyone, we can add it back later once the
license is cleared up.

Reported-by: default avatarPrarit Bhargava <prarit@redhat.com>
Cc: jschlst@samba.org
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarPrarit Bhargava <prarit@redhat.com>
Reviewed-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20230927090029.44704-2-gregkh@linuxfoundation.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent c2715368

Documentation/networking/device_drivers/appletalk/cops.rst

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.. SPDX-License-Identifier: GPL-2.0



========================================

The COPS LocalTalk Linux driver (cops.c)

========================================



By Jay Schulist <jschlst@samba.org>



This driver has two modes and they are: Dayna mode and Tangent mode.

Each mode corresponds with the type of card. It has been found

that there are 2 main types of cards and all other cards are

the same and just have different names or only have minor differences

such as more IO ports. As this driver is tested it will

become more clear exactly what cards are supported.



Right now these cards are known to work with the COPS driver. The

LT-200 cards work in a somewhat more limited capacity than the

DL200 cards, which work very well and are in use by many people.



TANGENT driver mode:

	- Tangent ATB-II, Novell NL-1000, Daystar Digital LT-200



DAYNA driver mode:

	- Dayna DL2000/DaynaTalk PC (Half Length), COPS LT-95,

	- Farallon PhoneNET PC III, Farallon PhoneNET PC II



Other cards possibly supported mode unknown though:

	- Dayna DL2000 (Full length)



The COPS driver defaults to using Dayna mode. To change the driver's

mode if you built a driver with dual support use board_type=1 or

board_type=2 for Dayna or Tangent with insmod.



Operation/loading of the driver

===============================



Use modprobe like this:	/sbin/modprobe cops.o (IO #) (IRQ #)

If you do not specify any options the driver will try and use the IO = 0x240,

IRQ = 5. As of right now I would only use IRQ 5 for the card, if autoprobing.



To load multiple COPS driver Localtalk cards you can do one of the following::



	insmod cops io=0x240 irq=5

	insmod -o cops2 cops io=0x260 irq=3



Or in lilo.conf put something like this::



	append="ether=5,0x240,lt0 ether=3,0x260,lt1"



Then bring up the interface with ifconfig. It will look something like this::



  lt0       Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-F7-00-00-00-00-00-00-00-00

	    inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0

	    UP BROADCAST RUNNING NOARP MULTICAST  MTU:600  Metric:1

	    RX packets:0 errors:0 dropped:0 overruns:0 frame:0

	    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 coll:0



Netatalk Configuration

======================



You will need to configure atalkd with something like the following to make

it work with the cops.c driver.



* For single LTalk card use::



    dummy -seed -phase 2 -net 2000 -addr 2000.10 -zone "1033"

    lt0 -seed -phase 1 -net 1000 -addr 1000.50 -zone "1033"



* For multiple cards, Ethernet and LocalTalk::



    eth0 -seed -phase 2 -net 3000 -addr 3000.20 -zone "1033"

    lt0 -seed -phase 1 -net 1000 -addr 1000.50 -zone "1033"



* For multiple LocalTalk cards, and an Ethernet card.



* Order seems to matter here, Ethernet last::



    lt0 -seed -phase 1 -net 1000 -addr 1000.10 -zone "LocalTalk1"

    lt1 -seed -phase 1 -net 2000 -addr 2000.20 -zone "LocalTalk2"

    eth0 -seed -phase 2 -net 3000 -addr 3000.30 -zone "EtherTalk"

Documentation/networking/device_drivers/appletalk/index.rst

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.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)



AppleTalk Device Drivers

========================



Contents:



.. toctree::

   :maxdepth: 2



   cops



.. only::  subproject and html



   Indices

   =======



   * :ref:`genindex`

Documentation/networking/device_drivers/index.rst

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@@ -8,7 +8,6 @@ Contents: 
.. toctree::

   :maxdepth: 2



   appletalk/index

   atm/index

   cable/index

   can/index

drivers/net/Space.c

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@@ -247,12 +247,6 @@ static int __init net_olddevs_init(void) 
	for (num = 0; num < 8; ++num)

		ethif_probe2(num);



#ifdef CONFIG_COPS

	cops_probe(0);

	cops_probe(1);

	cops_probe(2);

#endif



	return 0;

}

drivers/net/appletalk/Kconfig

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@@ -38,36 +38,6 @@ config DEV_APPLETALK 
	  to do IP over it, or you have a LocalTalk card and wish to use it to

	  connect to the AppleTalk network, say Y.





config COPS

	tristate "COPS LocalTalk PC support"

	depends on DEV_APPLETALK && ISA

	depends on NETDEVICES

	select NETDEV_LEGACY_INIT

	help

	  This allows you to use COPS AppleTalk cards to connect to LocalTalk

	  networks. You also need version 1.3.3 or later of the netatalk

	  package. This driver is experimental, which means that it may not

	  work. This driver will only work if you choose "AppleTalk DDP"

	  networking support, above.

	  Please read the file

	  <file:Documentation/networking/device_drivers/appletalk/cops.rst>.



config COPS_DAYNA

	bool "Dayna firmware support"

	depends on COPS

	help

	  Support COPS compatible cards with Dayna style firmware (Dayna

	  DL2000/ Daynatalk/PC (half length), COPS LT-95, Farallon PhoneNET PC

	  III, Farallon PhoneNET PC II).



config COPS_TANGENT

	bool "Tangent firmware support"

	depends on COPS

	help

	  Support COPS compatible cards with Tangent style firmware (Tangent

	  ATB_II, Novell NL-1000, Daystar Digital LT-200.



config IPDDP

	tristate "Appletalk-IP driver support"

	depends on DEV_APPLETALK && ATALK