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195 lines
7.8 KiB
Text
195 lines
7.8 KiB
Text
$Id: README.hysdn,v 1.3.6.1 2001/02/10 14:41:19 kai Exp $
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The hysdn driver has been written by
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Werner Cornelius (werner@isdn4linux.de or werner@titro.de)
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for Hypercope GmbH Aachen Germany. Hypercope agreed to publish this driver
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under the GNU General Public License.
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The CAPI 2.0-support was added by Ulrich Albrecht (ualbrecht@hypercope.de)
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for Hypercope GmbH Aachen, Germany.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Table of contents
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=================
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1. About the driver
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2. Loading/Unloading the driver
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3. Entries in the /proc filesystem
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4. The /proc/net/hysdn/cardconfX file
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5. The /proc/net/hysdn/cardlogX file
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6. Where to get additional info and help
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1. About the driver
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The drivers/isdn/hysdn subdir contains a driver for HYPERCOPEs active
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PCI isdn cards Champ, Ergo and Metro. To enable support for this cards
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enable ISDN support in the kernel config and support for HYSDN cards in
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the active cards submenu. The driver may only be compiled and used if
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support for loadable modules and the process filesystem have been enabled.
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These cards provide two different interfaces to the kernel. Without the
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optional CAPI 2.0 support, they register as ethernet card. IP-routing
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to a ISDN-destination is performed on the card itself. All necessary
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handlers for various protocols like ppp and others as well as config info
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and firmware may be fetched from Hypercopes WWW-Site www.hypercope.de.
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With CAPI 2.0 support enabled, the card can also be used as a CAPI 2.0
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compliant devices with either CAPI 2.0 applications
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(check isdn4k-utils) or -using the capidrv module- as a regular
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isdn4linux device. This is done via the same mechanism as with the
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active AVM cards and in fact uses the same module.
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2. Loading/Unloading the driver
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The module has no command line parameters and auto detects up to 10 cards
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in the id-range 0-9.
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If a loaded driver shall be unloaded all open files in the /proc/net/hysdn
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subdir need to be closed and all ethernet interfaces allocated by this
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driver must be shut down. Otherwise the module counter will avoid a module
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unload.
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If you are using the CAPI 2.0-interface, make sure to load/modprobe the
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kernelcapi-module first.
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If you plan to use the capidrv-link to isdn4linux, make sure to load
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capidrv.o after all modules using this driver (i.e. after hysdn and
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any avm-specific modules).
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3. Entries in the /proc filesystem
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When the module has been loaded it adds the directory hysdn in the
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/proc/net tree. This directory contains exactly 2 file entries for each
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card. One is called cardconfX and the other cardlogX, where X is the
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card id number from 0 to 9.
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The cards are numbered in the order found in the PCI config data.
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4. The /proc/net/hysdn/cardconfX file
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This file may be read to get by everyone to get info about the cards type,
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actual state, available features and used resources.
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The first 3 entries (id, bus and slot) are PCI info fields, the following
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type field gives the information about the cards type:
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4 -> Ergo card (server card with 2 b-chans)
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5 -> Metro card (server card with 4 or 8 b-chans)
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6 -> Champ card (client card with 2 b-chans)
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The following 3 fields show the hardware assignments for irq, iobase and the
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dual ported memory (dp-mem).
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The fields b-chans and fax-chans announce the available card resources of
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this types for the user.
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The state variable indicates the actual drivers state for this card with the
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following assignments.
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0 -> card has not been booted since driver load
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1 -> card booting is actually in progess
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2 -> card is in an error state due to a previous boot failure
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3 -> card is booted and active
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And the last field (device) shows the name of the ethernet device assigned
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to this card. Up to the first successful boot this field only shows a -
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to tell that no net device has been allocated up to now. Once a net device
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has been allocated it remains assigned to this card, even if a card is
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rebooted and an boot error occurs.
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Writing to the cardconfX file boots the card or transfers config lines to
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the cards firmware. The type of data is automatically detected when the
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first data is written. Only root has write access to this file.
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The firmware boot files are normally called hyclient.pof for client cards
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and hyserver.pof for server cards.
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After successfully writing the boot file, complete config files or single
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config lines may be copied to this file.
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If an error occurs the return value given to the writing process has the
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following additional codes (decimal):
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1000 Another process is currently bootng the card
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1001 Invalid firmware header
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1002 Boards dual-port RAM test failed
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1003 Internal firmware handler error
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1004 Boot image size invalid
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1005 First boot stage (bootstrap loader) failed
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1006 Second boot stage failure
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1007 Timeout waiting for card ready during boot
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1008 Operation only allowed in booted state
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1009 Config line too long
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1010 Invalid channel number
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1011 Timeout sending config data
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Additional info about error reasons may be fetched from the log output.
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5. The /proc/net/hysdn/cardlogX file
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The cardlogX file entry may be opened multiple for reading by everyone to
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get the cards and drivers log data. Card messages always start with the
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keyword LOG. All other lines are output from the driver.
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The driver log data may be redirected to the syslog by selecting the
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appropriate bitmask. The cards log messages will always be send to this
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interface but never to the syslog.
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A root user may write a decimal or hex (with 0x) value t this file to select
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desired output options. As mentioned above the cards log dat is always
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written to the cardlog file independent of the following options only used
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to check and debug the driver itself:
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For example:
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echo "0x34560078" > /proc/net/hysdn/cardlog0
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to output the hex log mask 34560078 for card 0.
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The written value is regarded as an unsigned 32-Bit value, bit ored for
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desired output. The following bits are already assigned:
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0x80000000 All driver log data is alternatively via syslog
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0x00000001 Log memory allocation errors
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0x00000010 Firmware load start and close are logged
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0x00000020 Log firmware record parser
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0x00000040 Log every firmware write actions
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0x00000080 Log all card related boot messages
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0x00000100 Output all config data sent for debugging purposes
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0x00000200 Only non comment config lines are shown wth channel
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0x00000400 Additional conf log output
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0x00001000 Log the asynchronous scheduler actions (config and log)
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0x00100000 Log all open and close actions to /proc/net/hysdn/card files
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0x00200000 Log all actions from /proc file entries
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0x00010000 Log network interface init and deinit
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6. Where to get additional info and help
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If you have any problems concerning the driver or configuration contact
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the Hypercope support team (support@hypercope.de) and or the authors
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Werner Cornelius (werner@isdn4linux or cornelius@titro.de) or
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Ulrich Albrecht (ualbrecht@hypercope.de).
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