$Id: README.icn,v 1.5 1997/04/23 18:55:55 fritz Exp $

You can get the ICN-ISDN-card from:

Thinking Objects Software GmbH
Versbacher Röthe 159
97078 Würzburg
Tel: +49 931 2877950
Fax: +49 931 2877951

email info@think.de
WWW   http:/www.think.de


The card communicates with the PC by two interfaces:
  1. A range of 4 successive port-addresses, whose base address can be 
     configured with the switches.
  2. A memory window with 16KB-256KB size, which can be setup in 16k steps
     over the whole range of 16MB. Isdn4linux only uses a 16k window.
     The base address of the window can be configured when loading
     the lowlevel-module (see README). If using more than one card,
     all cards are mapped to the same window and activated as needed.

Setting up the IO-address dipswitches for the ICN-ISDN-card:

  Two types of cards exist, one with dip-switches and one with
  hook-switches.

  1. Setting for the card with hook-switches:

     (0 = switch closed, 1 = switch open)

     S3 S2 S1  Base-address
      0  0  0  0x300
      0  0  1  0x310
      0  1  0  0x320 (Default for isdn4linux)
      0  1  1  0x330
      1  0  0  0x340
      1  0  1  0x350
      1  1  0  0x360
      1  1  1  NOT ALLOWED!
    
  2. Setting for the card with dip-switches:

     (0 = switch closed, 1 = switch open)

     S1 S2 S3 S4  Base-Address
      0  0  0  0  0x300
      0  0  0  1  0x310
      0  0  1  0  0x320 (Default for isdn4linux)
      0  0  1  1  0x330
      0  1  0  0  0x340
      0  1  0  1  0x350
      0  1  1  0  0x360
      0  1  1  1  NOT ALLOWED!
      1  0  0  0  0x308
      1  0  0  1  0x318
      1  0  1  0  0x328
      1  0  1  1  0x338
      1  1  0  0  0x348
      1  1  0  1  0x358
      1  1  1  0  0x368
      1  1  1  1  NOT ALLOWED!

The ICN driver either may be build into kernel or as a module. Initialization
depends on how the drive is built:

Driver built into the kernel:

  The ICN driver can be configured using the commandline-feature while
  loading the kernel with LILO or LOADLIN. It accepts the following syntax:

  icn=p,m[,idstring1[,idstring2]]

  where

    p = portbase      (default: 0x320)
    m = shared memory (default: 0xd0000)

  When using the ICN double card (4B), you MUST define TWO idstrings.
  idstring must start with a character! There is no way for the driver
  to distinguish between a 2B and 4B type card. Therefore, by supplying
  TWO idstrings, you tell the driver that you have a 4B installed.
  
  If you like to use more than one card, you can use the program
  "icnctrl" from the utility-package to configure additional cards.
  You need to configure shared memory only once, since the icn-driver
  maps all cards into the same address-space.

  Using the "icnctrl"-utility, portbase and shared memory can also be
  changed during runtime.

  The D-channel protocol is configured by loading different firmware
  into the card's memory using the "icnctrl"-utility.


Driver built as module:

  The module icn.o can be configured during "insmod'ing" it by
  appending its parameters to the insmod-commandline. The following
  syntax is accepted:

    portbase=p membase=m icn_id=idstring [icn_id2=idstring2]

  where p, m, idstring1 and idstring2 have the same meanings like
  parameters described for the kernel-version above.
      
  When using the ICN double card (4B), you MUST define TWO idstrings.
  idstring must start with a character! There is no way for the driver
  to distinguish between a 2B and 4B type card. Therefore, by supplying
  TWO idstrings, you tell the driver that you have a 4B installed.
  
  Using the "icnctrl"-utility, the same features apply to the modularized
  version like to the kernel-builtin one.

  The D-channel protocol is configured by loading different firmware
  into the card's memory using the "icnctrl"-utility.

Loading the firmware into the card:

  The firmware is supplied together with the isdn4k-utils package. It
  can be found in the subdirectory icnctrl/firmware/

  There are 3 files:

    loadpg.bin   - Image of the bootstrap loader.
    pc_1t_ca.bin - Image of firmware for german 1TR6 protocol.
    pc_eu_ca.bin - Image if firmware for EDSS1 (Euro-ISDN) protocol.

  Assumed you have installed the utility-package correctly, the firmware
  will be downloaded into the 2B-card using the following command:

    icnctrl -d Idstring load /etc/isdn/loadpg.bin /etc/isdn/pc_XX_ca.bin

  where XX is either "1t" or "eu", depending of the D-Channel protocol
  used on your S0-bus and Idstring is the Name of the card, given during
  insmod-time or (for kernel-builtin driver) on the kernel commandline.

  To load a 4B-card, the same command is used, except a second firmware
  file is appended to the commandline of icnctrl.

  -> After dowloading firmware, the two LEDs at the back cover of the card
     (ICN-4B: 4 LEDs) must be blinking intermittently now. If a connection
     is up, the corresponding led is lit continuously.

  For further documentation (adding more ICN-cards), refer to the manpage
  icnctrl.8 which is included in the isdn4k-utils package.

