mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 12:11:40 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
393 lines
18 KiB
Plaintext
393 lines
18 KiB
Plaintext
* NOTE - This is an unmaintained driver. Lantronix, which bought Stallion
|
|
technologies, is not active in driver maintenance, and they have no information
|
|
on when or if they will have a 2.6 driver.
|
|
|
|
James Nelson <james4765@gmail.com> - 12-12-2004
|
|
|
|
Stallion Multiport Serial Driver Readme
|
|
---------------------------------------
|
|
|
|
Copyright (C) 1994-1999, Stallion Technologies.
|
|
|
|
Version: 5.5.1
|
|
Date: 28MAR99
|
|
|
|
|
|
|
|
1. INTRODUCTION
|
|
|
|
There are two drivers that work with the different families of Stallion
|
|
multiport serial boards. One is for the Stallion smart boards - that is
|
|
EasyIO, EasyConnection 8/32 and EasyConnection 8/64-PCI, the other for
|
|
the true Stallion intelligent multiport boards - EasyConnection 8/64
|
|
(ISA, EISA, MCA), EasyConnection/RA-PCI, ONboard and Brumby.
|
|
|
|
If you are using any of the Stallion intelligent multiport boards (Brumby,
|
|
ONboard, EasyConnection 8/64 (ISA, EISA, MCA), EasyConnection/RA-PCI) with
|
|
Linux you will need to get the driver utility package. This contains a
|
|
firmware loader and the firmware images necessary to make the devices operate.
|
|
|
|
The Stallion Technologies ftp site, ftp.stallion.com, will always have
|
|
the latest version of the driver utility package.
|
|
|
|
ftp://ftp.stallion.com/drivers/ata5/Linux/ata-linux-550.tar.gz
|
|
|
|
As of the printing of this document the latest version of the driver
|
|
utility package is 5.5.0. If a later version is now available then you
|
|
should use the latest version.
|
|
|
|
If you are using the EasyIO, EasyConnection 8/32 or EasyConnection 8/64-PCI
|
|
boards then you don't need this package, although it does have a serial stats
|
|
display program.
|
|
|
|
If you require DIP switch settings, EISA or MCA configuration files, or any
|
|
other information related to Stallion boards then have a look at Stallion's
|
|
web pages at http://www.stallion.com.
|
|
|
|
|
|
|
|
2. INSTALLATION
|
|
|
|
The drivers can be used as loadable modules or compiled into the kernel.
|
|
You can choose which when doing a "config" on the kernel.
|
|
|
|
All ISA, EISA and MCA boards that you want to use need to be configured into
|
|
the driver(s). All PCI boards will be automatically detected when you load
|
|
the driver - so they do not need to be entered into the driver(s)
|
|
configuration structure. Note that kernel PCI support is required to use PCI
|
|
boards.
|
|
|
|
There are two methods of configuring ISA, EISA and MCA boards into the drivers.
|
|
If using the driver as a loadable module then the simplest method is to pass
|
|
the driver configuration as module arguments. The other method is to modify
|
|
the driver source to add configuration lines for each board in use.
|
|
|
|
If you have pre-built Stallion driver modules then the module argument
|
|
configuration method should be used. A lot of Linux distributions come with
|
|
pre-built driver modules in /lib/modules/X.Y.Z/misc for the kernel in use.
|
|
That makes things pretty simple to get going.
|
|
|
|
|
|
2.1 MODULE DRIVER CONFIGURATION:
|
|
|
|
The simplest configuration for modules is to use the module load arguments
|
|
to configure any ISA, EISA or MCA boards. PCI boards are automatically
|
|
detected, so do not need any additional configuration at all.
|
|
|
|
If using EasyIO, EasyConnection 8/32 ISA or MCA, or EasyConnection 8/63-PCI
|
|
boards then use the "stallion" driver module, Otherwise if you are using
|
|
an EasyConnection 8/64 ISA, EISA or MCA, EasyConnection/RA-PCI, ONboard,
|
|
Brumby or original Stallion board then use the "istallion" driver module.
|
|
|
|
Typically to load up the smart board driver use:
|
|
|
|
modprobe stallion
|
|
|
|
This will load the EasyIO and EasyConnection 8/32 driver. It will output a
|
|
message to say that it loaded and print the driver version number. It will
|
|
also print out whether it found the configured boards or not. These messages
|
|
may not appear on the console, but typically are always logged to
|
|
/var/adm/messages or /var/log/syslog files - depending on how the klogd and
|
|
syslogd daemons are setup on your system.
|
|
|
|
To load the intelligent board driver use:
|
|
|
|
modprobe istallion
|
|
|
|
It will output similar messages to the smart board driver.
|
|
|
|
If not using an auto-detectable board type (that is a PCI board) then you
|
|
will also need to supply command line arguments to the modprobe command
|
|
when loading the driver. The general form of the configuration argument is
|
|
|
|
board?=<name>[,<ioaddr>[,<addr>][,<irq>]]
|
|
|
|
where:
|
|
|
|
board? -- specifies the arbitrary board number of this board,
|
|
can be in the range 0 to 3.
|
|
|
|
name -- textual name of this board. The board name is the common
|
|
board name, or any "shortened" version of that. The board
|
|
type number may also be used here.
|
|
|
|
ioaddr -- specifies the I/O address of this board. This argument is
|
|
optional, but should generally be specified.
|
|
|
|
addr -- optional second address argument. Some board types require
|
|
a second I/O address, some require a memory address. The
|
|
exact meaning of this argument depends on the board type.
|
|
|
|
irq -- optional IRQ line used by this board.
|
|
|
|
Up to 4 board configuration arguments can be specified on the load line.
|
|
Here is some examples:
|
|
|
|
modprobe stallion board0=easyio,0x2a0,5
|
|
|
|
This configures an EasyIO board as board 0 at I/O address 0x2a0 and IRQ 5.
|
|
|
|
modprobe istallion board3=ec8/64,0x2c0,0xcc000
|
|
|
|
This configures an EasyConnection 8/64 ISA as board 3 at I/O address 0x2c0 at
|
|
memory address 0xcc000.
|
|
|
|
modprobe stallion board1=ec8/32-at,0x2a0,0x280,10
|
|
|
|
This configures an EasyConnection 8/32 ISA board at primary I/O address 0x2a0,
|
|
secondary address 0x280 and IRQ 10.
|
|
|
|
You will probably want to enter this module load and configuration information
|
|
into your system startup scripts so that the drivers are loaded and configured
|
|
on each system boot. Typically the start up script would be something like
|
|
/etc/modprobe.conf.
|
|
|
|
|
|
2.2 STATIC DRIVER CONFIGURATION:
|
|
|
|
For static driver configuration you need to modify the driver source code.
|
|
Entering ISA, EISA and MCA boards into the driver(s) configuration structure
|
|
involves editing the driver(s) source file. It's pretty easy if you follow
|
|
the instructions below. Both drivers can support up to 4 boards. The smart
|
|
card driver (the stallion.c driver) supports any combination of EasyIO and
|
|
EasyConnection 8/32 boards (up to a total of 4). The intelligent driver
|
|
supports any combination of ONboards, Brumbys, Stallions and EasyConnection
|
|
8/64 (ISA and EISA) boards (up to a total of 4).
|
|
|
|
To set up the driver(s) for the boards that you want to use you need to
|
|
edit the appropriate driver file and add configuration entries.
|
|
|
|
If using EasyIO or EasyConnection 8/32 ISA or MCA boards,
|
|
In drivers/char/stallion.c:
|
|
- find the definition of the stl_brdconf array (of structures)
|
|
near the top of the file
|
|
- modify this to match the boards you are going to install
|
|
(the comments before this structure should help)
|
|
- save and exit
|
|
|
|
If using ONboard, Brumby, Stallion or EasyConnection 8/64 (ISA or EISA)
|
|
boards,
|
|
In drivers/char/istallion.c:
|
|
- find the definition of the stli_brdconf array (of structures)
|
|
near the top of the file
|
|
- modify this to match the boards you are going to install
|
|
(the comments before this structure should help)
|
|
- save and exit
|
|
|
|
Once you have set up the board configurations then you are ready to build
|
|
the kernel or modules.
|
|
|
|
When the new kernel is booted, or the loadable module loaded then the
|
|
driver will emit some kernel trace messages about whether the configured
|
|
boards were detected or not. Depending on how your system logger is set
|
|
up these may come out on the console, or just be logged to
|
|
/var/adm/messages or /var/log/syslog. You should check the messages to
|
|
confirm that all is well.
|
|
|
|
|
|
2.3 SHARING INTERRUPTS
|
|
|
|
It is possible to share interrupts between multiple EasyIO and
|
|
EasyConnection 8/32 boards in an EISA system. To do this you must be using
|
|
static driver configuration, modifying the driver source code to add driver
|
|
configuration. Then a couple of extra things are required:
|
|
|
|
1. When entering the board resources into the stallion.c file you need to
|
|
mark the boards as using level triggered interrupts. Do this by replacing
|
|
the "0" entry at field position 6 (the last field) in the board
|
|
configuration structure with a "1". (This is the structure that defines
|
|
the board type, I/O locations, etc. for each board). All boards that are
|
|
sharing an interrupt must be set this way, and each board should have the
|
|
same interrupt number specified here as well. Now build the module or
|
|
kernel as you would normally.
|
|
|
|
2. When physically installing the boards into the system you must enter
|
|
the system EISA configuration utility. You will need to install the EISA
|
|
configuration files for *all* the EasyIO and EasyConnection 8/32 boards
|
|
that are sharing interrupts. The Stallion EasyIO and EasyConnection 8/32
|
|
EISA configuration files required are supplied by Stallion Technologies
|
|
on the EASY Utilities floppy diskette (usually supplied in the box with
|
|
the board when purchased. If not, you can pick it up from Stallion's FTP
|
|
site, ftp.stallion.com). You will need to edit the board resources to
|
|
choose level triggered interrupts, and make sure to set each board's
|
|
interrupt to the same IRQ number.
|
|
|
|
You must complete both the above steps for this to work. When you reboot
|
|
or load the driver your EasyIO and EasyConnection 8/32 boards will be
|
|
sharing interrupts.
|
|
|
|
|
|
2.4 USING HIGH SHARED MEMORY
|
|
|
|
The EasyConnection 8/64-EI, ONboard and Stallion boards are capable of
|
|
using shared memory addresses above the usual 640K - 1Mb range. The ONboard
|
|
ISA and the Stallion boards can be programmed to use memory addresses up to
|
|
16Mb (the ISA bus addressing limit), and the EasyConnection 8/64-EI and
|
|
ONboard/E can be programmed for memory addresses up to 4Gb (the EISA bus
|
|
addressing limit).
|
|
|
|
The higher than 1Mb memory addresses are fully supported by this driver.
|
|
Just enter the address as you normally would for a lower than 1Mb address
|
|
(in the driver's board configuration structure).
|
|
|
|
|
|
|
|
2.5 TROUBLE SHOOTING
|
|
|
|
If a board is not found by the driver but is actually in the system then the
|
|
most likely problem is that the I/O address is wrong. Change the module load
|
|
argument for the loadable module form. Or change it in the driver stallion.c
|
|
or istallion.c configuration structure and rebuild the kernel or modules, or
|
|
change it on the board.
|
|
|
|
On EasyIO and EasyConnection 8/32 boards the IRQ is software programmable, so
|
|
if there is a conflict you may need to change the IRQ used for a board. There
|
|
are no interrupts to worry about for ONboard, Brumby or EasyConnection 8/64
|
|
(ISA, EISA and MCA) boards. The memory region on EasyConnection 8/64 and
|
|
ONboard boards is software programmable, but not on the Brumby boards.
|
|
|
|
|
|
|
|
3. USING THE DRIVERS
|
|
|
|
3.1 INTELLIGENT DRIVER OPERATION
|
|
|
|
The intelligent boards also need to have their "firmware" code downloaded
|
|
to them. This is done via a user level application supplied in the driver
|
|
utility package called "stlload". Compile this program wherever you dropped
|
|
the package files, by typing "make". In its simplest form you can then type
|
|
|
|
./stlload -i cdk.sys
|
|
|
|
in this directory and that will download board 0 (assuming board 0 is an
|
|
EasyConnection 8/64 or EasyConnection/RA board). To download to an
|
|
ONboard, Brumby or Stallion do:
|
|
|
|
./stlload -i 2681.sys
|
|
|
|
Normally you would want all boards to be downloaded as part of the standard
|
|
system startup. To achieve this, add one of the lines above into the
|
|
/etc/rc.d/rc.S or /etc/rc.d/rc.serial file. To download each board just add
|
|
the "-b <brd-number>" option to the line. You will need to download code for
|
|
every board. You should probably move the stlload program into a system
|
|
directory, such as /usr/sbin. Also, the default location of the cdk.sys image
|
|
file in the stlload down-loader is /usr/lib/stallion. Create that directory
|
|
and put the cdk.sys and 2681.sys files in it. (It's a convenient place to put
|
|
them anyway). As an example your /etc/rc.d/rc.S file might have the
|
|
following lines added to it (if you had 3 boards):
|
|
|
|
/usr/sbin/stlload -b 0 -i /usr/lib/stallion/cdk.sys
|
|
/usr/sbin/stlload -b 1 -i /usr/lib/stallion/2681.sys
|
|
/usr/sbin/stlload -b 2 -i /usr/lib/stallion/2681.sys
|
|
|
|
The image files cdk.sys and 2681.sys are specific to the board types. The
|
|
cdk.sys will only function correctly on an EasyConnection 8/64 board. Similarly
|
|
the 2681.sys image fill only operate on ONboard, Brumby and Stallion boards.
|
|
If you load the wrong image file into a board it will fail to start up, and
|
|
of course the ports will not be operational!
|
|
|
|
If you are using the modularized version of the driver you might want to put
|
|
the modprobe calls in the startup script as well (before the download lines
|
|
obviously).
|
|
|
|
|
|
3.2 USING THE SERIAL PORTS
|
|
|
|
Once the driver is installed you will need to setup some device nodes to
|
|
access the serial ports. The simplest method is to use the /dev/MAKEDEV program.
|
|
It will automatically create device entries for Stallion boards. This will
|
|
create the normal serial port devices as /dev/ttyE# where# is the port number
|
|
starting from 0. A bank of 64 minor device numbers is allocated to each board,
|
|
so the first port on the second board is port 64,etc. A set of callout type
|
|
devices may also be created. They are created as the devices /dev/cue# where #
|
|
is the same as for the ttyE devices.
|
|
|
|
For the most part the Stallion driver tries to emulate the standard PC system
|
|
COM ports and the standard Linux serial driver. The idea is that you should
|
|
be able to use Stallion board ports and COM ports interchangeably without
|
|
modifying anything but the device name. Anything that doesn't work like that
|
|
should be considered a bug in this driver!
|
|
|
|
If you look at the driver code you will notice that it is fairly closely
|
|
based on the Linux serial driver (linux/drivers/char/serial.c). This is
|
|
intentional, obviously this is the easiest way to emulate its behavior!
|
|
|
|
Since this driver tries to emulate the standard serial ports as much as
|
|
possible, most system utilities should work as they do for the standard
|
|
COM ports. Most importantly "stty" works as expected and "setserial" can
|
|
also be used (excepting the ability to auto-configure the I/O and IRQ
|
|
addresses of boards). Higher baud rates are supported in the usual fashion
|
|
through setserial or using the CBAUDEX extensions. Note that the EasyIO and
|
|
EasyConnection (all types) support at least 57600 and 115200 baud. The newer
|
|
EasyConnection XP modules and new EasyIO boards support 230400 and 460800
|
|
baud as well. The older boards including ONboard and Brumby support a
|
|
maximum baud rate of 38400.
|
|
|
|
If you are unfamiliar with how to use serial ports, then get the Serial-HOWTO
|
|
by Greg Hankins. It will explain everything you need to know!
|
|
|
|
|
|
|
|
4. NOTES
|
|
|
|
You can use both drivers at once if you have a mix of board types installed
|
|
in a system. However to do this you will need to change the major numbers
|
|
used by one of the drivers. Currently both drivers use major numbers 24, 25
|
|
and 28 for their devices. Change one driver to use some other major numbers,
|
|
and then modify the mkdevnods script to make device nodes based on those new
|
|
major numbers. For example, you could change the istallion.c driver to use
|
|
major numbers 60, 61 and 62. You will also need to create device nodes with
|
|
different names for the ports, for example ttyF# and cuf#.
|
|
|
|
The original Stallion board is no longer supported by Stallion Technologies.
|
|
Although it is known to work with the istallion driver.
|
|
|
|
Finding a free physical memory address range can be a problem. The older
|
|
boards like the Stallion and ONboard need large areas (64K or even 128K), so
|
|
they can be very difficult to get into a system. If you have 16 Mb of RAM
|
|
then you have no choice but to put them somewhere in the 640K -> 1Mb range.
|
|
ONboards require 64K, so typically 0xd0000 is good, or 0xe0000 on some
|
|
systems. If you have an original Stallion board, "V4.0" or Rev.O, then you
|
|
need a 64K memory address space, so again 0xd0000 and 0xe0000 are good.
|
|
Older Stallion boards are a much bigger problem. They need 128K of address
|
|
space and must be on a 128K boundary. If you don't have a VGA card then
|
|
0xc0000 might be usable - there is really no other place you can put them
|
|
below 1Mb.
|
|
|
|
Both the ONboard and old Stallion boards can use higher memory addresses as
|
|
well, but you must have less than 16Mb of RAM to be able to use them. Usual
|
|
high memory addresses used include 0xec0000 and 0xf00000.
|
|
|
|
The Brumby boards only require 16Kb of address space, so you can usually
|
|
squeeze them in somewhere. Common addresses are 0xc8000, 0xcc000, or in
|
|
the 0xd0000 range. EasyConnection 8/64 boards are even better, they only
|
|
require 4Kb of address space, again usually 0xc8000, 0xcc000 or 0xd0000
|
|
are good.
|
|
|
|
If you are using an EasyConnection 8/64-EI or ONboard/E then usually the
|
|
0xd0000 or 0xe0000 ranges are the best options below 1Mb. If neither of
|
|
them can be used then the high memory support to use the really high address
|
|
ranges is the best option. Typically the 2Gb range is convenient for them,
|
|
and gets them well out of the way.
|
|
|
|
The ports of the EasyIO-8M board do not have DCD or DTR signals. So these
|
|
ports cannot be used as real modem devices. Generally, when using these
|
|
ports you should only use the cueX devices.
|
|
|
|
The driver utility package contains a couple of very useful programs. One
|
|
is a serial port statistics collection and display program - very handy
|
|
for solving serial port problems. The other is an extended option setting
|
|
program that works with the intelligent boards.
|
|
|
|
|
|
|
|
5. DISCLAIMER
|
|
|
|
The information contained in this document is believed to be accurate and
|
|
reliable. However, no responsibility is assumed by Stallion Technologies
|
|
Pty. Ltd. for its use, nor any infringements of patents or other rights
|
|
of third parties resulting from its use. Stallion Technologies reserves
|
|
the right to modify the design of its products and will endeavour to change
|
|
the information in manuals and accompanying documentation accordingly.
|
|
|