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jcastillo |
/* $Id: isdn_common.c,v 1.1 2005-12-20 10:16:56 jcastillo Exp $
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* Linux ISDN subsystem, common used functions (linklevel).
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*
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* Copyright 1994-1998 by Fritz Elfert (fritz@isdn4linux.de)
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* Copyright 1995,96 Thinking Objects Software GmbH Wuerzburg
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* Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
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*
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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, or (at your option)
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* any later version.
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*
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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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*
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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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*
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* $Log: not supported by cvs2svn $
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* Revision 1.1.1.1 2001/09/10 07:44:18 simons
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* Initial import
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*
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* Revision 1.1.1.1 2001/07/02 17:58:31 simons
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* Initial revision
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*
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* Revision 1.44.2.9 1998/11/06 00:07:25 fritz
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* Bugfix: loading additional driver while /dev/isdnctrl opened resulted in
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* wrong module usage count after closing /dev/isdnctrl.
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*
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* Revision 1.44.2.8 1998/11/05 22:11:43 fritz
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* Changed mail-address.
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*
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* Revision 1.44.2.7 1998/11/04 17:22:40 fritz
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* Replaced broken lowlevel-driver locking.
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*
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* Revision 1.44.2.6 1998/11/03 14:30:56 fritz
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* Reduced stack usage in various functions.
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* Adapted statemachine to work with certified HiSax.
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* Some fixes in callback handling.
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*
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* Revision 1.44.2.5 1998/10/25 15:48:04 fritz
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* Misc bugfixes and adaptions to new HiSax
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*
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* Revision 1.44.2.4 1998/06/07 13:47:44 fritz
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* ABC cleanup
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*
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* Revision 1.44.2.2 1998/03/16 09:55:44 cal
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* Merged in TimRu-patches. Still needs validation in conjunction with ABC-patches.
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*
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* Revision 1.44.2.1 1998/03/07 23:35:03 detabc
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* added the abc-extension to the linux isdn-kernel
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* for kernel-version 2.0.xx
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* DO NOT USE FOR HIGHER KERNELS-VERSIONS
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* all source-lines are switched with the define CONFIG_ISDN_WITH_ABC
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* (make config and answer ABC-Ext. Support (Compress,TCP-Keepalive ...) with yes
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*
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* you need also a modified isdnctrl-source the switch on the
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* features of the abc-extension
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*
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* please use carefully. more detail will be follow.
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* thanks
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*
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* Revision 1.44 1997/05/27 15:17:23 fritz
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* Added changes for recent 2.1.x kernels:
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* changed return type of isdn_close
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* queue_task_* -> queue_task
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* clear/set_bit -> test_and_... where apropriate.
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* changed type of hard_header_cache parameter.
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*
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* Revision 1.43 1997/03/31 14:09:43 fritz
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* Fixed memory leak in isdn_close().
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*
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* Revision 1.42 1997/03/30 16:51:08 calle
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* changed calls to copy_from_user/copy_to_user and removed verify_area
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* were possible.
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*
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* Revision 1.41 1997/03/24 22:54:41 fritz
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* Some small fixes in debug code.
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*
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* Revision 1.40 1997/03/08 08:13:51 fritz
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* Bugfix: IIOCSETMAP (Set mapping) was broken.
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*
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* Revision 1.39 1997/03/07 01:32:54 fritz
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* Added proper ifdef's for CONFIG_ISDN_AUDIO
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*
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* Revision 1.38 1997/03/05 21:15:02 fritz
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* Fix: reduced stack usage of isdn_ioctl() and isdn_set_allcfg()
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*
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* Revision 1.37 1997/03/02 14:29:18 fritz
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* More ttyI related cleanup.
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*
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* Revision 1.36 1997/02/28 02:32:40 fritz
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* Cleanup: Moved some tty related stuff from isdn_common.c
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* to isdn_tty.c
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* Bugfix: Bisync protocol did not behave like documented.
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*
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* Revision 1.35 1997/02/21 13:01:19 fritz
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* Changes CAUSE message output in kernel log.
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*
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* Revision 1.34 1997/02/10 20:12:43 fritz
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* Changed interface for reporting incoming calls.
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*
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* Revision 1.33 1997/02/10 10:05:42 fritz
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* More changes for Kernel 2.1.X
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* Symbol information moved to isdn_syms.c
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*
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* Revision 1.32 1997/02/03 22:55:26 fritz
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* Reformatted according CodingStyle.
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* Changed isdn_writebuf_stub static.
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* Slow down tty-RING counter.
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* skb->free stuff replaced by macro.
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* Bugfix in audio-skb locking.
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* Bugfix in HL-driver locking.
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*
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* Revision 1.31 1997/01/17 01:19:18 fritz
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* Applied chargeint patch.
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*
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* Revision 1.30 1997/01/14 01:27:47 fritz
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* Changed audio receive not to rely on skb->users and skb->lock.
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* Added ATI2 and related variables.
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* Started adding full-duplex audio capability.
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*
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* Revision 1.29 1997/01/12 23:33:03 fritz
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* Made isdn_all_eaz foolproof.
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*
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* Revision 1.28 1996/11/13 02:33:19 fritz
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* Fixed a race condition.
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*
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* Revision 1.27 1996/10/27 22:02:41 keil
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* return codes for ISDN_STAT_ICALL
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*
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* Revision 1.26 1996/10/23 11:59:40 fritz
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* More compatibility changes.
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*
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* Revision 1.25 1996/10/22 23:13:54 fritz
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* Changes for compatibility to 2.0.X and 2.1.X kernels.
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*
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* Revision 1.24 1996/10/11 14:02:03 fritz
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* Bugfix: call to isdn_ppp_timer_timeout() never compiled, because of
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* typo in #ifdef.
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*
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* Revision 1.23 1996/06/25 18:35:38 fritz
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* Fixed bogus memory access in isdn_set_allcfg().
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*
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* Revision 1.22 1996/06/24 17:37:37 fritz
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* Bugfix: isdn_timer_ctrl() did restart timer, even if it
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* was already running.
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* lowlevel driver locking did use wrong parameters.
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*
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* Revision 1.21 1996/06/15 14:58:20 fritz
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* Added version signatures for data structures used
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* by userlevel programs.
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*
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* Revision 1.20 1996/06/12 16:01:49 fritz
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* Bugfix: Remote B-channel hangup sometimes did not result
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* in a NO CARRIER on tty.
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*
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* Revision 1.19 1996/06/11 14:52:04 hipp
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* minor bugfix in isdn_writebuf_skb_stub()
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*
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* Revision 1.18 1996/06/06 14:51:51 fritz
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* Changed to support DTMF decoding on audio playback also.
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*
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* Revision 1.17 1996/06/05 02:24:10 fritz
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* Added DTMF decoder for audio mode.
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*
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* Revision 1.16 1996/06/03 20:09:05 fritz
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* Bugfix: called wrong function pointer for locking in
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* isdn_get_free_channel().
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*
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* Revision 1.15 1996/05/31 01:10:54 fritz
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* Bugfixes:
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* Lowlevel modules did not get locked correctly.
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* Did show wrong revision when initializing.
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* Minor fixes in ioctl code.
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* sk_buff did not get freed, if error in writebuf_stub.
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*
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* Revision 1.14 1996/05/18 01:36:55 fritz
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* Added spelling corrections and some minor changes
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* to stay in sync with kernel.
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*
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* Revision 1.13 1996/05/17 15:43:30 fritz
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* Bugfix: decrement of rcvcount in readbchan() corrected.
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*
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* Revision 1.12 1996/05/17 03:55:43 fritz
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* Changed DLE handling for audio receive.
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* Some cleanup.
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* Added display of isdn_audio_revision.
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*
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* Revision 1.11 1996/05/11 21:51:32 fritz
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* Changed queue management to use sk_buffs.
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*
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* Revision 1.10 1996/05/10 08:49:16 fritz
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* Checkin before major changes of tty-code.
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*
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* Revision 1.9 1996/05/07 09:19:41 fritz
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* Adapted to changes in isdn_tty.c
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*
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* Revision 1.8 1996/05/06 11:34:51 hipp
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* fixed a few bugs
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*
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* Revision 1.7 1996/05/02 03:55:17 fritz
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* Bugfixes:
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* - B-channel connect message for modem devices
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* sometimes did not result in a CONNECT-message.
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* - register_isdn did not check for driverId-conflicts.
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*
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* Revision 1.6 1996/04/30 20:57:21 fritz
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* Commit test
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*
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* Revision 1.5 1996/04/20 16:19:07 fritz
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* Changed slow timer handlers to increase accuracy.
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* Added statistic information for usage by xisdnload.
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* Fixed behaviour of isdnctrl-device on non-blocked io.
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* Fixed all io to go through generic writebuf-function without
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* bypassing. Same for incoming data.
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* Fixed bug: Last channel had been unusable.
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* Fixed kfree of tty xmit_buf on ppp initialization failure.
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*
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* Revision 1.4 1996/02/11 02:33:26 fritz
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* Fixed bug in main timer-dispatcher.
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* Bugfix: Lot of tty-callbacks got called regardless of the events already
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* been handled by network-devices.
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* Changed ioctl-names.
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*
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* Revision 1.3 1996/01/22 05:16:11 fritz
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* Changed ioctl-names.
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* Fixed bugs in isdn_open and isdn_close regarding PPP_MINOR.
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*
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* Revision 1.2 1996/01/21 16:52:40 fritz
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* Support for sk_buffs added, changed header-stuffing.
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*
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* Revision 1.1 1996/01/09 04:12:52 fritz
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* Initial revision
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*
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*/
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#include <linux/config.h>
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#define __NO_VERSION__
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#include <linux/module.h>
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE >= 0x020117)
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#include <asm/poll.h>
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#endif
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#include <linux/isdn.h>
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#include "isdn_common.h"
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#include "isdn_tty.h"
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#include "isdn_net.h"
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#include "isdn_ppp.h"
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#ifdef CONFIG_ISDN_AUDIO
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#include "isdn_audio.h"
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#endif
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#include "isdn_cards.h"
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/* Debugflags */
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#undef ISDN_DEBUG_STATCALLB
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isdn_dev *dev = (isdn_dev *) 0;
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static char *isdn_revision = "$Revision: 1.1 $";
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extern char *isdn_net_revision;
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extern char *isdn_tty_revision;
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#ifdef CONFIG_ISDN_PPP
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extern char *isdn_ppp_revision;
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#else
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static char *isdn_ppp_revision = ": none $";
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#endif
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#ifdef CONFIG_ISDN_AUDIO
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extern char *isdn_audio_revision;
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#else
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static char *isdn_audio_revision = ": none $";
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#endif
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static int isdn_writebuf_stub(int, int, const u_char *, int, int);
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void
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isdn_MOD_INC_USE_COUNT(void)
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{
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int i;
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MOD_INC_USE_COUNT;
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for (i = 0; i < dev->drivers; i++) {
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isdn_ctrl cmd;
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cmd.driver = i;
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cmd.arg = 0;
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cmd.command = ISDN_CMD_LOCK;
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isdn_command(&cmd);
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dev->drv[i]->locks++;
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}
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}
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void
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isdn_MOD_DEC_USE_COUNT(void)
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{
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int i;
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MOD_DEC_USE_COUNT;
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for (i = 0; i < dev->drivers; i++)
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if (dev->drv[i]->locks > 0) {
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isdn_ctrl cmd;
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cmd.driver = i;
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cmd.arg = 0;
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cmd.command = ISDN_CMD_UNLOCK;
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isdn_command(&cmd);
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dev->drv[i]->locks--;
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}
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}
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#if defined(ISDN_DEBUG_NET_DUMP) || defined(ISDN_DEBUG_MODEM_DUMP) || defined(CONFIG_ISDN_TIMEOUT_RULES)
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void
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isdn_dumppkt(char *s, u_char * p, int len, int dumplen)
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{
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|
int dumpc;
|
| 321 |
|
|
|
| 322 |
|
|
printk(KERN_DEBUG "%s(%d) ", s, len);
|
| 323 |
|
|
for (dumpc = 0; (dumpc < dumplen) && (len); len--, dumpc++)
|
| 324 |
|
|
printk(" %02x", *p++);
|
| 325 |
|
|
printk("\n");
|
| 326 |
|
|
}
|
| 327 |
|
|
#endif
|
| 328 |
|
|
|
| 329 |
|
|
static __inline void
|
| 330 |
|
|
isdn_trash_skb(struct sk_buff *skb, int rw)
|
| 331 |
|
|
{
|
| 332 |
|
|
SET_SKB_FREE(skb);
|
| 333 |
|
|
kfree_skb(skb, rw);
|
| 334 |
|
|
}
|
| 335 |
|
|
|
| 336 |
|
|
static void
|
| 337 |
|
|
isdn_free_queue(struct sk_buff_head *queue)
|
| 338 |
|
|
{
|
| 339 |
|
|
struct sk_buff *skb;
|
| 340 |
|
|
unsigned long flags;
|
| 341 |
|
|
|
| 342 |
|
|
save_flags(flags);
|
| 343 |
|
|
cli();
|
| 344 |
|
|
if (skb_queue_len(queue))
|
| 345 |
|
|
while ((skb = skb_dequeue(queue)))
|
| 346 |
|
|
isdn_trash_skb(skb, FREE_READ);
|
| 347 |
|
|
restore_flags(flags);
|
| 348 |
|
|
}
|
| 349 |
|
|
|
| 350 |
|
|
int
|
| 351 |
|
|
isdn_dc2minor(int di, int ch)
|
| 352 |
|
|
{
|
| 353 |
|
|
int i;
|
| 354 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 355 |
|
|
if (dev->chanmap[i] == ch && dev->drvmap[i] == di)
|
| 356 |
|
|
return i;
|
| 357 |
|
|
return -1;
|
| 358 |
|
|
}
|
| 359 |
|
|
|
| 360 |
|
|
static int isdn_timer_cnt1 = 0;
|
| 361 |
|
|
static int isdn_timer_cnt2 = 0;
|
| 362 |
|
|
static int isdn_timer_cnt3 = 0;
|
| 363 |
|
|
|
| 364 |
|
|
static void
|
| 365 |
|
|
isdn_timer_funct(ulong dummy)
|
| 366 |
|
|
{
|
| 367 |
|
|
int tf = dev->tflags;
|
| 368 |
|
|
|
| 369 |
|
|
if (tf & ISDN_TIMER_FAST) {
|
| 370 |
|
|
if (tf & ISDN_TIMER_MODEMREAD)
|
| 371 |
|
|
isdn_tty_readmodem();
|
| 372 |
|
|
if (tf & ISDN_TIMER_MODEMPLUS)
|
| 373 |
|
|
isdn_tty_modem_escape();
|
| 374 |
|
|
if (tf & ISDN_TIMER_MODEMXMIT)
|
| 375 |
|
|
isdn_tty_modem_xmit();
|
| 376 |
|
|
}
|
| 377 |
|
|
if (tf & ISDN_TIMER_SLOW) {
|
| 378 |
|
|
if (++isdn_timer_cnt1 >= ISDN_TIMER_02SEC) {
|
| 379 |
|
|
isdn_timer_cnt1 = 0;
|
| 380 |
|
|
if (tf & ISDN_TIMER_NETDIAL)
|
| 381 |
|
|
isdn_net_dial();
|
| 382 |
|
|
}
|
| 383 |
|
|
if (++isdn_timer_cnt2 >= ISDN_TIMER_1SEC) {
|
| 384 |
|
|
isdn_timer_cnt2 = 0;
|
| 385 |
|
|
if (tf & ISDN_TIMER_NETHANGUP)
|
| 386 |
|
|
isdn_net_autohup();
|
| 387 |
|
|
if (++isdn_timer_cnt3 > ISDN_TIMER_RINGING) {
|
| 388 |
|
|
isdn_timer_cnt3 = 0;
|
| 389 |
|
|
if (tf & ISDN_TIMER_MODEMRING)
|
| 390 |
|
|
isdn_tty_modem_ring();
|
| 391 |
|
|
}
|
| 392 |
|
|
#if (defined CONFIG_ISDN_PPP) && (defined CONFIG_ISDN_MPP)
|
| 393 |
|
|
if (tf & ISDN_TIMER_IPPP)
|
| 394 |
|
|
isdn_ppp_timer_timeout();
|
| 395 |
|
|
#endif
|
| 396 |
|
|
}
|
| 397 |
|
|
}
|
| 398 |
|
|
|
| 399 |
|
|
if (tf) {
|
| 400 |
|
|
int flags;
|
| 401 |
|
|
|
| 402 |
|
|
save_flags(flags);
|
| 403 |
|
|
cli();
|
| 404 |
|
|
del_timer(&dev->timer);
|
| 405 |
|
|
dev->timer.expires = jiffies + ISDN_TIMER_RES;
|
| 406 |
|
|
add_timer(&dev->timer);
|
| 407 |
|
|
restore_flags(flags);
|
| 408 |
|
|
}
|
| 409 |
|
|
}
|
| 410 |
|
|
|
| 411 |
|
|
void
|
| 412 |
|
|
isdn_timer_ctrl(int tf, int onoff)
|
| 413 |
|
|
{
|
| 414 |
|
|
int flags;
|
| 415 |
|
|
|
| 416 |
|
|
save_flags(flags);
|
| 417 |
|
|
cli();
|
| 418 |
|
|
if ((tf & ISDN_TIMER_SLOW) && (!(dev->tflags & ISDN_TIMER_SLOW))) {
|
| 419 |
|
|
/* If the slow-timer wasn't activated until now */
|
| 420 |
|
|
isdn_timer_cnt1 = 0;
|
| 421 |
|
|
isdn_timer_cnt2 = 0;
|
| 422 |
|
|
}
|
| 423 |
|
|
if (onoff)
|
| 424 |
|
|
dev->tflags |= tf;
|
| 425 |
|
|
else
|
| 426 |
|
|
dev->tflags &= ~tf;
|
| 427 |
|
|
if (dev->tflags) {
|
| 428 |
|
|
if (!del_timer(&dev->timer)) /* del_timer is 1, when active */
|
| 429 |
|
|
dev->timer.expires = jiffies + ISDN_TIMER_RES;
|
| 430 |
|
|
add_timer(&dev->timer);
|
| 431 |
|
|
}
|
| 432 |
|
|
restore_flags(flags);
|
| 433 |
|
|
}
|
| 434 |
|
|
|
| 435 |
|
|
/*
|
| 436 |
|
|
* Receive a packet from B-Channel. (Called from low-level-module)
|
| 437 |
|
|
*/
|
| 438 |
|
|
static void
|
| 439 |
|
|
isdn_receive_skb_callback(int di, int channel, struct sk_buff *skb)
|
| 440 |
|
|
{
|
| 441 |
|
|
int i;
|
| 442 |
|
|
|
| 443 |
|
|
if ((i = isdn_dc2minor(di, channel)) == -1) {
|
| 444 |
|
|
isdn_trash_skb(skb, FREE_READ);
|
| 445 |
|
|
return;
|
| 446 |
|
|
}
|
| 447 |
|
|
/* Update statistics */
|
| 448 |
|
|
dev->ibytes[i] += skb->len;
|
| 449 |
|
|
/* First, try to deliver data to network-device */
|
| 450 |
|
|
if (isdn_net_rcv_skb(i, skb))
|
| 451 |
|
|
return;
|
| 452 |
|
|
/* No network-device found, deliver to tty or raw-channel */
|
| 453 |
|
|
SET_SKB_FREE(skb);
|
| 454 |
|
|
if (skb->len) {
|
| 455 |
|
|
if (isdn_tty_rcv_skb(i, di, channel, skb))
|
| 456 |
|
|
return;
|
| 457 |
|
|
wake_up_interruptible(&dev->drv[di]->rcv_waitq[channel]);
|
| 458 |
|
|
} else
|
| 459 |
|
|
isdn_trash_skb(skb, FREE_READ);
|
| 460 |
|
|
}
|
| 461 |
|
|
|
| 462 |
|
|
/*
|
| 463 |
|
|
* Intercept command from Linklevel to Lowlevel.
|
| 464 |
|
|
*/
|
| 465 |
|
|
int
|
| 466 |
|
|
isdn_command(isdn_ctrl *cmd)
|
| 467 |
|
|
{
|
| 468 |
|
|
return dev->drv[cmd->driver]->interface->command(cmd);
|
| 469 |
|
|
}
|
| 470 |
|
|
|
| 471 |
|
|
void
|
| 472 |
|
|
isdn_all_eaz(int di, int ch)
|
| 473 |
|
|
{
|
| 474 |
|
|
isdn_ctrl cmd;
|
| 475 |
|
|
|
| 476 |
|
|
if (di < 0)
|
| 477 |
|
|
return;
|
| 478 |
|
|
cmd.driver = di;
|
| 479 |
|
|
cmd.arg = ch;
|
| 480 |
|
|
cmd.command = ISDN_CMD_SETEAZ;
|
| 481 |
|
|
cmd.parm.num[0] = '\0';
|
| 482 |
|
|
isdn_command(&cmd);
|
| 483 |
|
|
}
|
| 484 |
|
|
|
| 485 |
|
|
static int
|
| 486 |
|
|
isdn_status_callback(isdn_ctrl * c)
|
| 487 |
|
|
{
|
| 488 |
|
|
int di;
|
| 489 |
|
|
ulong flags;
|
| 490 |
|
|
int i;
|
| 491 |
|
|
int r;
|
| 492 |
|
|
int retval = 0;
|
| 493 |
|
|
isdn_ctrl cmd;
|
| 494 |
|
|
|
| 495 |
|
|
di = c->driver;
|
| 496 |
|
|
i = isdn_dc2minor(di, c->arg);
|
| 497 |
|
|
switch (c->command) {
|
| 498 |
|
|
case ISDN_STAT_BSENT:
|
| 499 |
|
|
if (i < 0)
|
| 500 |
|
|
return -1;
|
| 501 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 502 |
|
|
return 0;
|
| 503 |
|
|
if (isdn_net_stat_callback(i, c))
|
| 504 |
|
|
return 0;
|
| 505 |
|
|
if (isdn_tty_stat_callback(i, c))
|
| 506 |
|
|
return 0;
|
| 507 |
|
|
wake_up_interruptible(&dev->drv[di]->snd_waitq[c->arg]);
|
| 508 |
|
|
break;
|
| 509 |
|
|
case ISDN_STAT_STAVAIL:
|
| 510 |
|
|
save_flags(flags);
|
| 511 |
|
|
cli();
|
| 512 |
|
|
dev->drv[di]->stavail += c->arg;
|
| 513 |
|
|
restore_flags(flags);
|
| 514 |
|
|
wake_up_interruptible(&dev->drv[di]->st_waitq);
|
| 515 |
|
|
break;
|
| 516 |
|
|
case ISDN_STAT_RUN:
|
| 517 |
|
|
dev->drv[di]->flags |= DRV_FLAG_RUNNING;
|
| 518 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 519 |
|
|
if (dev->drvmap[i] == di)
|
| 520 |
|
|
isdn_all_eaz(di, dev->chanmap[i]);
|
| 521 |
|
|
break;
|
| 522 |
|
|
case ISDN_STAT_STOP:
|
| 523 |
|
|
dev->drv[di]->flags &= ~DRV_FLAG_RUNNING;
|
| 524 |
|
|
break;
|
| 525 |
|
|
case ISDN_STAT_ICALL:
|
| 526 |
|
|
if (i < 0)
|
| 527 |
|
|
return -1;
|
| 528 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 529 |
|
|
printk(KERN_DEBUG "ICALL (net): %d %ld %s\n", di, c->arg, c->parm.num);
|
| 530 |
|
|
#endif
|
| 531 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED) {
|
| 532 |
|
|
cmd.driver = di;
|
| 533 |
|
|
cmd.arg = c->arg;
|
| 534 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 535 |
|
|
isdn_command(&cmd);
|
| 536 |
|
|
return 0;
|
| 537 |
|
|
}
|
| 538 |
|
|
/* Try to find a network-interface which will accept incoming call */
|
| 539 |
|
|
r = isdn_net_find_icall(di, c, i);
|
| 540 |
|
|
switch (r) {
|
| 541 |
|
|
case 0:
|
| 542 |
|
|
/* No network-device replies.
|
| 543 |
|
|
* Try ttyI's
|
| 544 |
|
|
*/
|
| 545 |
|
|
if (isdn_tty_find_icall(di, c) >= 0)
|
| 546 |
|
|
retval = 1;
|
| 547 |
|
|
else if (dev->drv[di]->flags & DRV_FLAG_REJBUS) {
|
| 548 |
|
|
cmd.driver = di;
|
| 549 |
|
|
cmd.arg = c->arg;
|
| 550 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 551 |
|
|
isdn_command(&cmd);
|
| 552 |
|
|
retval = 2;
|
| 553 |
|
|
}
|
| 554 |
|
|
break;
|
| 555 |
|
|
case 1:
|
| 556 |
|
|
/* Schedule connection-setup */
|
| 557 |
|
|
isdn_net_dial();
|
| 558 |
|
|
cmd.driver = di;
|
| 559 |
|
|
cmd.arg = c->arg;
|
| 560 |
|
|
cmd.command = ISDN_CMD_ACCEPTD;
|
| 561 |
|
|
isdn_command(&cmd);
|
| 562 |
|
|
retval = 1;
|
| 563 |
|
|
break;
|
| 564 |
|
|
case 2: /* For calling back, first reject incoming call ... */
|
| 565 |
|
|
case 3: /* Interface found, but down, reject call actively */
|
| 566 |
|
|
retval = 2;
|
| 567 |
|
|
printk(KERN_INFO "isdn: Rejecting Call\n");
|
| 568 |
|
|
cmd.driver = di;
|
| 569 |
|
|
cmd.arg = c->arg;
|
| 570 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 571 |
|
|
isdn_command(&cmd);
|
| 572 |
|
|
if (r == 3)
|
| 573 |
|
|
break;
|
| 574 |
|
|
/* Fall through */
|
| 575 |
|
|
case 4:
|
| 576 |
|
|
/* ... then start callback. */
|
| 577 |
|
|
isdn_net_dial();
|
| 578 |
|
|
break;
|
| 579 |
|
|
}
|
| 580 |
|
|
return retval;
|
| 581 |
|
|
break;
|
| 582 |
|
|
case ISDN_STAT_CINF:
|
| 583 |
|
|
if (i < 0)
|
| 584 |
|
|
return -1;
|
| 585 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 586 |
|
|
printk(KERN_DEBUG "CINF: %ld %s\n", c->arg, c->parm.num);
|
| 587 |
|
|
#endif
|
| 588 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 589 |
|
|
return 0;
|
| 590 |
|
|
if (strcmp(c->parm.num, "0"))
|
| 591 |
|
|
isdn_net_stat_callback(i, c);
|
| 592 |
|
|
break;
|
| 593 |
|
|
case ISDN_STAT_CAUSE:
|
| 594 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 595 |
|
|
printk(KERN_DEBUG "CAUSE: %ld %s\n", c->arg, c->parm.num);
|
| 596 |
|
|
#endif
|
| 597 |
|
|
printk(KERN_INFO "isdn: %s,ch%ld cause: %s\n",
|
| 598 |
|
|
dev->drvid[di], c->arg, c->parm.num);
|
| 599 |
|
|
isdn_tty_stat_callback(i, c);
|
| 600 |
|
|
break;
|
| 601 |
|
|
case ISDN_STAT_DCONN:
|
| 602 |
|
|
if (i < 0)
|
| 603 |
|
|
return -1;
|
| 604 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 605 |
|
|
printk(KERN_DEBUG "DCONN: %ld\n", c->arg);
|
| 606 |
|
|
#endif
|
| 607 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 608 |
|
|
return 0;
|
| 609 |
|
|
/* Find any net-device, waiting for D-channel setup */
|
| 610 |
|
|
if (isdn_net_stat_callback(i, c))
|
| 611 |
|
|
break;
|
| 612 |
|
|
/* Find any ttyI, waiting for D-channel setup */
|
| 613 |
|
|
if (isdn_tty_stat_callback(i, c)) {
|
| 614 |
|
|
cmd.driver = di;
|
| 615 |
|
|
cmd.arg = c->arg;
|
| 616 |
|
|
cmd.command = ISDN_CMD_ACCEPTB;
|
| 617 |
|
|
isdn_command(&cmd);
|
| 618 |
|
|
break;
|
| 619 |
|
|
}
|
| 620 |
|
|
break;
|
| 621 |
|
|
case ISDN_STAT_DHUP:
|
| 622 |
|
|
if (i < 0)
|
| 623 |
|
|
return -1;
|
| 624 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 625 |
|
|
printk(KERN_DEBUG "DHUP: %ld\n", c->arg);
|
| 626 |
|
|
#endif
|
| 627 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 628 |
|
|
return 0;
|
| 629 |
|
|
dev->drv[di]->online &= ~(1 << (c->arg));
|
| 630 |
|
|
isdn_info_update();
|
| 631 |
|
|
/* Signal hangup to network-devices */
|
| 632 |
|
|
if (isdn_net_stat_callback(i, c))
|
| 633 |
|
|
break;
|
| 634 |
|
|
if (isdn_tty_stat_callback(i, c))
|
| 635 |
|
|
break;
|
| 636 |
|
|
break;
|
| 637 |
|
|
case ISDN_STAT_BCONN:
|
| 638 |
|
|
if (i < 0)
|
| 639 |
|
|
return -1;
|
| 640 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 641 |
|
|
printk(KERN_DEBUG "BCONN: %ld\n", c->arg);
|
| 642 |
|
|
#endif
|
| 643 |
|
|
/* Signal B-channel-connect to network-devices */
|
| 644 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 645 |
|
|
return 0;
|
| 646 |
|
|
dev->drv[di]->online |= (1 << (c->arg));
|
| 647 |
|
|
isdn_info_update();
|
| 648 |
|
|
if (isdn_net_stat_callback(i, c))
|
| 649 |
|
|
break;
|
| 650 |
|
|
if (isdn_tty_stat_callback(i, c))
|
| 651 |
|
|
break;
|
| 652 |
|
|
break;
|
| 653 |
|
|
case ISDN_STAT_BHUP:
|
| 654 |
|
|
if (i < 0)
|
| 655 |
|
|
return -1;
|
| 656 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 657 |
|
|
printk(KERN_DEBUG "BHUP: %ld\n", c->arg);
|
| 658 |
|
|
#endif
|
| 659 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 660 |
|
|
return 0;
|
| 661 |
|
|
dev->drv[di]->online &= ~(1 << (c->arg));
|
| 662 |
|
|
isdn_info_update();
|
| 663 |
|
|
if (isdn_tty_stat_callback(i, c))
|
| 664 |
|
|
break;
|
| 665 |
|
|
break;
|
| 666 |
|
|
case ISDN_STAT_NODCH:
|
| 667 |
|
|
if (i < 0)
|
| 668 |
|
|
return -1;
|
| 669 |
|
|
#ifdef ISDN_DEBUG_STATCALLB
|
| 670 |
|
|
printk(KERN_DEBUG "NODCH: %ld\n", c->arg);
|
| 671 |
|
|
#endif
|
| 672 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 673 |
|
|
return 0;
|
| 674 |
|
|
if (isdn_net_stat_callback(i, c))
|
| 675 |
|
|
break;
|
| 676 |
|
|
if (isdn_tty_stat_callback(i, c))
|
| 677 |
|
|
break;
|
| 678 |
|
|
break;
|
| 679 |
|
|
case ISDN_STAT_ADDCH:
|
| 680 |
|
|
break;
|
| 681 |
|
|
case ISDN_STAT_UNLOAD:
|
| 682 |
|
|
save_flags(flags);
|
| 683 |
|
|
cli();
|
| 684 |
|
|
isdn_tty_stat_callback(i, c);
|
| 685 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 686 |
|
|
if (dev->drvmap[i] == di) {
|
| 687 |
|
|
dev->drvmap[i] = -1;
|
| 688 |
|
|
dev->chanmap[i] = -1;
|
| 689 |
|
|
}
|
| 690 |
|
|
dev->drivers--;
|
| 691 |
|
|
dev->channels -= dev->drv[di]->channels;
|
| 692 |
|
|
kfree(dev->drv[di]->rcverr);
|
| 693 |
|
|
kfree(dev->drv[di]->rcvcount);
|
| 694 |
|
|
for (i = 0; i < dev->drv[di]->channels; i++)
|
| 695 |
|
|
isdn_free_queue(&dev->drv[di]->rpqueue[i]);
|
| 696 |
|
|
kfree(dev->drv[di]->rpqueue);
|
| 697 |
|
|
kfree(dev->drv[di]->rcv_waitq);
|
| 698 |
|
|
kfree(dev->drv[di]->snd_waitq);
|
| 699 |
|
|
kfree(dev->drv[di]);
|
| 700 |
|
|
dev->drv[di] = NULL;
|
| 701 |
|
|
dev->drvid[di][0] = '\0';
|
| 702 |
|
|
isdn_info_update();
|
| 703 |
|
|
restore_flags(flags);
|
| 704 |
|
|
return 0;
|
| 705 |
|
|
default:
|
| 706 |
|
|
return -1;
|
| 707 |
|
|
}
|
| 708 |
|
|
return 0;
|
| 709 |
|
|
}
|
| 710 |
|
|
|
| 711 |
|
|
/*
|
| 712 |
|
|
* Get integer from char-pointer, set pointer to end of number
|
| 713 |
|
|
*/
|
| 714 |
|
|
int
|
| 715 |
|
|
isdn_getnum(char **p)
|
| 716 |
|
|
{
|
| 717 |
|
|
int v = -1;
|
| 718 |
|
|
|
| 719 |
|
|
while (*p[0] >= '0' && *p[0] <= '9')
|
| 720 |
|
|
v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p[0]++) - '0');
|
| 721 |
|
|
return v;
|
| 722 |
|
|
}
|
| 723 |
|
|
|
| 724 |
|
|
#define DLE 0x10
|
| 725 |
|
|
|
| 726 |
|
|
/*
|
| 727 |
|
|
* isdn_readbchan() tries to get data from the read-queue.
|
| 728 |
|
|
* It MUST be called with interrupts off.
|
| 729 |
|
|
*/
|
| 730 |
|
|
int
|
| 731 |
|
|
isdn_readbchan(int di, int channel, u_char * buf, u_char * fp, int len, int user)
|
| 732 |
|
|
{
|
| 733 |
|
|
int left;
|
| 734 |
|
|
int count;
|
| 735 |
|
|
int count_pull;
|
| 736 |
|
|
int count_put;
|
| 737 |
|
|
int dflag;
|
| 738 |
|
|
struct sk_buff *skb;
|
| 739 |
|
|
u_char *cp;
|
| 740 |
|
|
|
| 741 |
|
|
if (!dev->drv[di])
|
| 742 |
|
|
return 0;
|
| 743 |
|
|
if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) {
|
| 744 |
|
|
if (user)
|
| 745 |
|
|
interruptible_sleep_on(&dev->drv[di]->rcv_waitq[channel]);
|
| 746 |
|
|
else
|
| 747 |
|
|
return 0;
|
| 748 |
|
|
}
|
| 749 |
|
|
left = MIN(len, dev->drv[di]->rcvcount[channel]);
|
| 750 |
|
|
cp = buf;
|
| 751 |
|
|
count = 0;
|
| 752 |
|
|
while (left) {
|
| 753 |
|
|
if (!(skb = skb_peek(&dev->drv[di]->rpqueue[channel])))
|
| 754 |
|
|
break;
|
| 755 |
|
|
#ifdef CONFIG_ISDN_AUDIO
|
| 756 |
|
|
if (ISDN_AUDIO_SKB_LOCK(skb))
|
| 757 |
|
|
break;
|
| 758 |
|
|
ISDN_AUDIO_SKB_LOCK(skb) = 1;
|
| 759 |
|
|
if (ISDN_AUDIO_SKB_DLECOUNT(skb)) {
|
| 760 |
|
|
char *p = skb->data;
|
| 761 |
|
|
unsigned long DLEmask = (1 << channel);
|
| 762 |
|
|
|
| 763 |
|
|
dflag = 0;
|
| 764 |
|
|
count_pull = count_put = 0;
|
| 765 |
|
|
while ((count_pull < skb->len) && (left-- > 0)) {
|
| 766 |
|
|
if (dev->drv[di]->DLEflag & DLEmask) {
|
| 767 |
|
|
if (user)
|
| 768 |
|
|
put_user(DLE, cp++);
|
| 769 |
|
|
else
|
| 770 |
|
|
*cp++ = DLE;
|
| 771 |
|
|
dev->drv[di]->DLEflag &= ~DLEmask;
|
| 772 |
|
|
} else {
|
| 773 |
|
|
if (user)
|
| 774 |
|
|
put_user(*p, cp++);
|
| 775 |
|
|
else
|
| 776 |
|
|
*cp++ = *p;
|
| 777 |
|
|
if (*p == DLE) {
|
| 778 |
|
|
dev->drv[di]->DLEflag |= DLEmask;
|
| 779 |
|
|
(ISDN_AUDIO_SKB_DLECOUNT(skb))--;
|
| 780 |
|
|
}
|
| 781 |
|
|
p++;
|
| 782 |
|
|
count_pull++;
|
| 783 |
|
|
}
|
| 784 |
|
|
count_put++;
|
| 785 |
|
|
}
|
| 786 |
|
|
if (count_pull >= skb->len)
|
| 787 |
|
|
dflag = 1;
|
| 788 |
|
|
} else {
|
| 789 |
|
|
#endif
|
| 790 |
|
|
/* No DLE's in buff, so simply copy it */
|
| 791 |
|
|
dflag = 1;
|
| 792 |
|
|
if ((count_pull = skb->len) > left) {
|
| 793 |
|
|
count_pull = left;
|
| 794 |
|
|
dflag = 0;
|
| 795 |
|
|
}
|
| 796 |
|
|
count_put = count_pull;
|
| 797 |
|
|
if (user)
|
| 798 |
|
|
copy_to_user(cp, skb->data, count_put);
|
| 799 |
|
|
else
|
| 800 |
|
|
memcpy(cp, skb->data, count_put);
|
| 801 |
|
|
cp += count_put;
|
| 802 |
|
|
left -= count_put;
|
| 803 |
|
|
#ifdef CONFIG_ISDN_AUDIO
|
| 804 |
|
|
}
|
| 805 |
|
|
#endif
|
| 806 |
|
|
count += count_put;
|
| 807 |
|
|
if (fp) {
|
| 808 |
|
|
memset(fp, 0, count_put);
|
| 809 |
|
|
fp += count_put;
|
| 810 |
|
|
}
|
| 811 |
|
|
if (dflag) {
|
| 812 |
|
|
/* We got all the data in this buff.
|
| 813 |
|
|
* Now we can dequeue it.
|
| 814 |
|
|
*/
|
| 815 |
|
|
if (fp)
|
| 816 |
|
|
*(fp - 1) = 0xff;
|
| 817 |
|
|
#ifdef CONFIG_ISDN_AUDIO
|
| 818 |
|
|
ISDN_AUDIO_SKB_LOCK(skb) = 0;
|
| 819 |
|
|
#endif
|
| 820 |
|
|
skb = skb_dequeue(&dev->drv[di]->rpqueue[channel]);
|
| 821 |
|
|
isdn_trash_skb(skb, FREE_READ);
|
| 822 |
|
|
} else {
|
| 823 |
|
|
/* Not yet emptied this buff, so it
|
| 824 |
|
|
* must stay in the queue, for further calls
|
| 825 |
|
|
* but we pull off the data we got until now.
|
| 826 |
|
|
*/
|
| 827 |
|
|
skb_pull(skb, count_pull);
|
| 828 |
|
|
#ifdef CONFIG_ISDN_AUDIO
|
| 829 |
|
|
ISDN_AUDIO_SKB_LOCK(skb) = 0;
|
| 830 |
|
|
#endif
|
| 831 |
|
|
}
|
| 832 |
|
|
dev->drv[di]->rcvcount[channel] -= count_put;
|
| 833 |
|
|
}
|
| 834 |
|
|
return count;
|
| 835 |
|
|
}
|
| 836 |
|
|
|
| 837 |
|
|
static __inline int
|
| 838 |
|
|
isdn_minor2drv(int minor)
|
| 839 |
|
|
{
|
| 840 |
|
|
return (dev->drvmap[minor]);
|
| 841 |
|
|
}
|
| 842 |
|
|
|
| 843 |
|
|
static __inline int
|
| 844 |
|
|
isdn_minor2chan(int minor)
|
| 845 |
|
|
{
|
| 846 |
|
|
return (dev->chanmap[minor]);
|
| 847 |
|
|
}
|
| 848 |
|
|
|
| 849 |
|
|
#define INF_DV 0x01 /* Data version for /dev/isdninfo */
|
| 850 |
|
|
|
| 851 |
|
|
static char *
|
| 852 |
|
|
isdn_statstr(void)
|
| 853 |
|
|
{
|
| 854 |
|
|
static char istatbuf[2048];
|
| 855 |
|
|
char *p;
|
| 856 |
|
|
int i;
|
| 857 |
|
|
|
| 858 |
|
|
sprintf(istatbuf, "idmap:\t");
|
| 859 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 860 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 861 |
|
|
sprintf(p, "%s ", (dev->drvmap[i] < 0) ? "-" : dev->drvid[dev->drvmap[i]]);
|
| 862 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 863 |
|
|
}
|
| 864 |
|
|
sprintf(p, "\nchmap:\t");
|
| 865 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 866 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 867 |
|
|
sprintf(p, "%d ", dev->chanmap[i]);
|
| 868 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 869 |
|
|
}
|
| 870 |
|
|
sprintf(p, "\ndrmap:\t");
|
| 871 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 872 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 873 |
|
|
sprintf(p, "%d ", dev->drvmap[i]);
|
| 874 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 875 |
|
|
}
|
| 876 |
|
|
sprintf(p, "\nusage:\t");
|
| 877 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 878 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 879 |
|
|
sprintf(p, "%d ", dev->usage[i]);
|
| 880 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 881 |
|
|
}
|
| 882 |
|
|
sprintf(p, "\nflags:\t");
|
| 883 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 884 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++) {
|
| 885 |
|
|
if (dev->drv[i]) {
|
| 886 |
|
|
sprintf(p, "%ld ", dev->drv[i]->online);
|
| 887 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 888 |
|
|
} else {
|
| 889 |
|
|
sprintf(p, "? ");
|
| 890 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 891 |
|
|
}
|
| 892 |
|
|
}
|
| 893 |
|
|
sprintf(p, "\nphone:\t");
|
| 894 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 895 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 896 |
|
|
sprintf(p, "%s ", dev->num[i]);
|
| 897 |
|
|
p = istatbuf + strlen(istatbuf);
|
| 898 |
|
|
}
|
| 899 |
|
|
sprintf(p, "\n");
|
| 900 |
|
|
return istatbuf;
|
| 901 |
|
|
}
|
| 902 |
|
|
|
| 903 |
|
|
/* Module interface-code */
|
| 904 |
|
|
|
| 905 |
|
|
void
|
| 906 |
|
|
isdn_info_update(void)
|
| 907 |
|
|
{
|
| 908 |
|
|
infostruct *p = dev->infochain;
|
| 909 |
|
|
|
| 910 |
|
|
while (p) {
|
| 911 |
|
|
*(p->private) = 1;
|
| 912 |
|
|
p = (infostruct *) p->next;
|
| 913 |
|
|
}
|
| 914 |
|
|
wake_up_interruptible(&(dev->info_waitq));
|
| 915 |
|
|
}
|
| 916 |
|
|
|
| 917 |
|
|
static RWTYPE
|
| 918 |
|
|
isdn_read(struct inode *inode, struct file *file, char *buf, RWARG count)
|
| 919 |
|
|
{
|
| 920 |
|
|
uint minor = MINOR(inode->i_rdev);
|
| 921 |
|
|
int len = 0;
|
| 922 |
|
|
ulong flags;
|
| 923 |
|
|
int drvidx;
|
| 924 |
|
|
int chidx;
|
| 925 |
|
|
|
| 926 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 927 |
|
|
char *p;
|
| 928 |
|
|
if (!file->private_data) {
|
| 929 |
|
|
if (file->f_flags & O_NONBLOCK)
|
| 930 |
|
|
return -EAGAIN;
|
| 931 |
|
|
interruptible_sleep_on(&(dev->info_waitq));
|
| 932 |
|
|
}
|
| 933 |
|
|
p = isdn_statstr();
|
| 934 |
|
|
file->private_data = 0;
|
| 935 |
|
|
if ((len = strlen(p)) <= count) {
|
| 936 |
|
|
if (copy_to_user(buf, p, len))
|
| 937 |
|
|
return -EFAULT;
|
| 938 |
|
|
file->f_pos += len;
|
| 939 |
|
|
return len;
|
| 940 |
|
|
}
|
| 941 |
|
|
return 0;
|
| 942 |
|
|
}
|
| 943 |
|
|
if (!dev->drivers)
|
| 944 |
|
|
return -ENODEV;
|
| 945 |
|
|
if (minor < ISDN_MINOR_CTRL) {
|
| 946 |
|
|
drvidx = isdn_minor2drv(minor);
|
| 947 |
|
|
if (drvidx < 0)
|
| 948 |
|
|
return -ENODEV;
|
| 949 |
|
|
if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
|
| 950 |
|
|
return -ENODEV;
|
| 951 |
|
|
chidx = isdn_minor2chan(minor);
|
| 952 |
|
|
save_flags(flags);
|
| 953 |
|
|
cli();
|
| 954 |
|
|
len = isdn_readbchan(drvidx, chidx, buf, 0, count, 1);
|
| 955 |
|
|
file->f_pos += len;
|
| 956 |
|
|
restore_flags(flags);
|
| 957 |
|
|
return len;
|
| 958 |
|
|
}
|
| 959 |
|
|
if (minor <= ISDN_MINOR_CTRLMAX) {
|
| 960 |
|
|
drvidx = isdn_minor2drv(minor - ISDN_MINOR_CTRL);
|
| 961 |
|
|
if (drvidx < 0)
|
| 962 |
|
|
return -ENODEV;
|
| 963 |
|
|
if (!dev->drv[drvidx]->stavail) {
|
| 964 |
|
|
if (file->f_flags & O_NONBLOCK)
|
| 965 |
|
|
return -EAGAIN;
|
| 966 |
|
|
interruptible_sleep_on(&(dev->drv[drvidx]->st_waitq));
|
| 967 |
|
|
}
|
| 968 |
|
|
if (dev->drv[drvidx]->interface->readstat)
|
| 969 |
|
|
len = dev->drv[drvidx]->interface->
|
| 970 |
|
|
readstat(buf, MIN(count, dev->drv[drvidx]->stavail),
|
| 971 |
|
|
1, drvidx, isdn_minor2chan(minor));
|
| 972 |
|
|
else
|
| 973 |
|
|
len = 0;
|
| 974 |
|
|
save_flags(flags);
|
| 975 |
|
|
cli();
|
| 976 |
|
|
if (len)
|
| 977 |
|
|
dev->drv[drvidx]->stavail -= len;
|
| 978 |
|
|
else
|
| 979 |
|
|
dev->drv[drvidx]->stavail = 0;
|
| 980 |
|
|
restore_flags(flags);
|
| 981 |
|
|
file->f_pos += len;
|
| 982 |
|
|
return len;
|
| 983 |
|
|
}
|
| 984 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 985 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 986 |
|
|
return (isdn_ppp_read(minor - ISDN_MINOR_PPP, file, buf, count));
|
| 987 |
|
|
#endif
|
| 988 |
|
|
return -ENODEV;
|
| 989 |
|
|
}
|
| 990 |
|
|
|
| 991 |
|
|
static LSTYPE
|
| 992 |
|
|
isdn_lseek(struct inode *inode, struct file *file, LSARG offset, int orig)
|
| 993 |
|
|
{
|
| 994 |
|
|
return -ESPIPE;
|
| 995 |
|
|
}
|
| 996 |
|
|
|
| 997 |
|
|
static RWTYPE
|
| 998 |
|
|
isdn_write(struct inode *inode, struct file *file, const char *buf, RWARG count)
|
| 999 |
|
|
{
|
| 1000 |
|
|
uint minor = MINOR(inode->i_rdev);
|
| 1001 |
|
|
int drvidx;
|
| 1002 |
|
|
int chidx;
|
| 1003 |
|
|
|
| 1004 |
|
|
if (minor == ISDN_MINOR_STATUS)
|
| 1005 |
|
|
return -EPERM;
|
| 1006 |
|
|
if (!dev->drivers)
|
| 1007 |
|
|
return -ENODEV;
|
| 1008 |
|
|
if (minor < ISDN_MINOR_CTRL) {
|
| 1009 |
|
|
drvidx = isdn_minor2drv(minor);
|
| 1010 |
|
|
if (drvidx < 0)
|
| 1011 |
|
|
return -ENODEV;
|
| 1012 |
|
|
if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
|
| 1013 |
|
|
return -ENODEV;
|
| 1014 |
|
|
chidx = isdn_minor2chan(minor);
|
| 1015 |
|
|
while (isdn_writebuf_stub(drvidx, chidx, buf, count, 1) != count)
|
| 1016 |
|
|
interruptible_sleep_on(&dev->drv[drvidx]->snd_waitq[chidx]);
|
| 1017 |
|
|
return count;
|
| 1018 |
|
|
}
|
| 1019 |
|
|
if (minor <= ISDN_MINOR_CTRLMAX) {
|
| 1020 |
|
|
drvidx = isdn_minor2drv(minor - ISDN_MINOR_CTRL);
|
| 1021 |
|
|
if (drvidx < 0)
|
| 1022 |
|
|
return -ENODEV;
|
| 1023 |
|
|
/*
|
| 1024 |
|
|
* We want to use the isdnctrl device to load the firmware
|
| 1025 |
|
|
*
|
| 1026 |
|
|
if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
|
| 1027 |
|
|
return -ENODEV;
|
| 1028 |
|
|
*/
|
| 1029 |
|
|
if (dev->drv[drvidx]->interface->writecmd)
|
| 1030 |
|
|
return (dev->drv[drvidx]->interface->
|
| 1031 |
|
|
writecmd(buf, count, 1, drvidx, isdn_minor2chan(minor)));
|
| 1032 |
|
|
else
|
| 1033 |
|
|
return count;
|
| 1034 |
|
|
}
|
| 1035 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1036 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 1037 |
|
|
return (isdn_ppp_write(minor - ISDN_MINOR_PPP, file, buf, count));
|
| 1038 |
|
|
#endif
|
| 1039 |
|
|
return -ENODEV;
|
| 1040 |
|
|
}
|
| 1041 |
|
|
|
| 1042 |
|
|
#if (LINUX_VERSION_CODE < 0x020117)
|
| 1043 |
|
|
static int
|
| 1044 |
|
|
isdn_select(struct inode *inode, struct file *file, int type, select_table * st)
|
| 1045 |
|
|
{
|
| 1046 |
|
|
uint minor = MINOR(inode->i_rdev);
|
| 1047 |
|
|
int drvidx = isdn_minor2drv(minor - ISDN_MINOR_CTRL);
|
| 1048 |
|
|
|
| 1049 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 1050 |
|
|
if (file->private_data)
|
| 1051 |
|
|
return 1;
|
| 1052 |
|
|
else {
|
| 1053 |
|
|
if (st)
|
| 1054 |
|
|
select_wait(&(dev->info_waitq), st);
|
| 1055 |
|
|
return 0;
|
| 1056 |
|
|
}
|
| 1057 |
|
|
}
|
| 1058 |
|
|
if (minor >= ISDN_MINOR_CTRL && minor <= ISDN_MINOR_CTRLMAX) {
|
| 1059 |
|
|
if (drvidx < 0)
|
| 1060 |
|
|
return -ENODEV;
|
| 1061 |
|
|
if (dev->drv[drvidx]->stavail)
|
| 1062 |
|
|
return 1;
|
| 1063 |
|
|
else {
|
| 1064 |
|
|
if (st)
|
| 1065 |
|
|
select_wait(&(dev->drv[drvidx]->st_waitq), st);
|
| 1066 |
|
|
return 0;
|
| 1067 |
|
|
}
|
| 1068 |
|
|
return 1;
|
| 1069 |
|
|
}
|
| 1070 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1071 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 1072 |
|
|
return (isdn_ppp_select(minor - ISDN_MINOR_PPP, file, type, st));
|
| 1073 |
|
|
#endif
|
| 1074 |
|
|
return -ENODEV;
|
| 1075 |
|
|
}
|
| 1076 |
|
|
#else
|
| 1077 |
|
|
static unsigned int
|
| 1078 |
|
|
isdn_poll(struct file *file, poll_table * wait)
|
| 1079 |
|
|
{
|
| 1080 |
|
|
unsigned int mask = 0;
|
| 1081 |
|
|
unsigned int minor = MINOR(file->f_inode->i_rdev);
|
| 1082 |
|
|
int drvidx = isdn_minor2drv(minor - ISDN_MINOR_CTRL);
|
| 1083 |
|
|
|
| 1084 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 1085 |
|
|
poll_wait(&(dev->info_waitq), wait);
|
| 1086 |
|
|
/* mask = POLLOUT | POLLWRNORM; */
|
| 1087 |
|
|
if (file->private_data) {
|
| 1088 |
|
|
mask |= POLLIN | POLLRDNORM;
|
| 1089 |
|
|
}
|
| 1090 |
|
|
return mask;
|
| 1091 |
|
|
}
|
| 1092 |
|
|
if (minor >= ISDN_MINOR_CTRL && minor <= ISDN_MINOR_CTRLMAX) {
|
| 1093 |
|
|
poll_wait(&(dev->drv[drvidx]->st_waitq), wait);
|
| 1094 |
|
|
if (drvidx < 0) {
|
| 1095 |
|
|
printk(KERN_ERR "isdn_common: isdn_poll 1 -> what the hell\n");
|
| 1096 |
|
|
return POLLERR;
|
| 1097 |
|
|
}
|
| 1098 |
|
|
mask = POLLOUT | POLLWRNORM;
|
| 1099 |
|
|
if (dev->drv[drvidx]->stavail) {
|
| 1100 |
|
|
mask |= POLLIN | POLLRDNORM;
|
| 1101 |
|
|
}
|
| 1102 |
|
|
return mask;
|
| 1103 |
|
|
}
|
| 1104 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1105 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 1106 |
|
|
return (isdn_ppp_poll(file, wait));
|
| 1107 |
|
|
#endif
|
| 1108 |
|
|
printk(KERN_ERR "isdn_common: isdn_poll 2 -> what the hell\n");
|
| 1109 |
|
|
return POLLERR;
|
| 1110 |
|
|
}
|
| 1111 |
|
|
#endif
|
| 1112 |
|
|
|
| 1113 |
|
|
typedef union {
|
| 1114 |
|
|
char name[10];
|
| 1115 |
|
|
char bname[22];
|
| 1116 |
|
|
isdn_ioctl_struct iocts;
|
| 1117 |
|
|
isdn_net_ioctl_phone phone;
|
| 1118 |
|
|
isdn_net_ioctl_cfg cfg;
|
| 1119 |
|
|
} iocpar_t;
|
| 1120 |
|
|
|
| 1121 |
|
|
static int
|
| 1122 |
|
|
isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
|
| 1123 |
|
|
{
|
| 1124 |
|
|
uint minor = MINOR(inode->i_rdev);
|
| 1125 |
|
|
isdn_ctrl c;
|
| 1126 |
|
|
int drvidx;
|
| 1127 |
|
|
int chidx;
|
| 1128 |
|
|
int ret;
|
| 1129 |
|
|
int i;
|
| 1130 |
|
|
char *p;
|
| 1131 |
|
|
char *s;
|
| 1132 |
|
|
iocpar_t *iocpar;
|
| 1133 |
|
|
|
| 1134 |
|
|
#define name iocpar->name
|
| 1135 |
|
|
#define bname iocpar->bname
|
| 1136 |
|
|
#define iocts iocpar->iocts
|
| 1137 |
|
|
#define phone iocpar->phone
|
| 1138 |
|
|
#define cfg iocpar->cfg
|
| 1139 |
|
|
|
| 1140 |
|
|
#define RETURN(r) ({ ret = r; kfree(iocpar); return ret; })
|
| 1141 |
|
|
|
| 1142 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 1143 |
|
|
switch (cmd) {
|
| 1144 |
|
|
case IIOCGETDVR:
|
| 1145 |
|
|
return (TTY_DV +
|
| 1146 |
|
|
(NET_DV << 8) +
|
| 1147 |
|
|
(INF_DV << 16));
|
| 1148 |
|
|
case IIOCGETCPS:
|
| 1149 |
|
|
if (arg) {
|
| 1150 |
|
|
ulong *p = (ulong *) arg;
|
| 1151 |
|
|
int i;
|
| 1152 |
|
|
if ((ret = verify_area(VERIFY_WRITE, (void *) arg,
|
| 1153 |
|
|
sizeof(ulong) * ISDN_MAX_CHANNELS * 2)))
|
| 1154 |
|
|
return ret;
|
| 1155 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 1156 |
|
|
put_user(dev->ibytes[i], p++);
|
| 1157 |
|
|
put_user(dev->obytes[i], p++);
|
| 1158 |
|
|
}
|
| 1159 |
|
|
return 0;
|
| 1160 |
|
|
} else
|
| 1161 |
|
|
return -EINVAL;
|
| 1162 |
|
|
break;
|
| 1163 |
|
|
default:
|
| 1164 |
|
|
return -EINVAL;
|
| 1165 |
|
|
}
|
| 1166 |
|
|
}
|
| 1167 |
|
|
if (!dev->drivers)
|
| 1168 |
|
|
return -ENODEV;
|
| 1169 |
|
|
if (minor < ISDN_MINOR_CTRL) {
|
| 1170 |
|
|
drvidx = isdn_minor2drv(minor);
|
| 1171 |
|
|
if (drvidx < 0)
|
| 1172 |
|
|
return -ENODEV;
|
| 1173 |
|
|
chidx = isdn_minor2chan(minor);
|
| 1174 |
|
|
if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
|
| 1175 |
|
|
return -ENODEV;
|
| 1176 |
|
|
return 0;
|
| 1177 |
|
|
}
|
| 1178 |
|
|
if (minor <= ISDN_MINOR_CTRLMAX) {
|
| 1179 |
|
|
if ((iocpar = (iocpar_t *)kmalloc(sizeof(iocpar_t), GFP_KERNEL)) == NULL) {
|
| 1180 |
|
|
printk(KERN_WARNING "isdn: Out of memory in isdn_ioctl\n");
|
| 1181 |
|
|
return -ENOMEM;
|
| 1182 |
|
|
}
|
| 1183 |
|
|
switch (cmd) {
|
| 1184 |
|
|
#ifdef CONFIG_NETDEVICES
|
| 1185 |
|
|
case IIOCNETAIF:
|
| 1186 |
|
|
/* Add a network-interface */
|
| 1187 |
|
|
if (arg) {
|
| 1188 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1189 |
|
|
RETURN(ret);
|
| 1190 |
|
|
s = name;
|
| 1191 |
|
|
} else
|
| 1192 |
|
|
s = NULL;
|
| 1193 |
|
|
if ((s = isdn_net_new(s, NULL))) {
|
| 1194 |
|
|
if ((ret = copy_to_user((char *) arg, s, strlen(s) + 1)))
|
| 1195 |
|
|
RETURN(ret);
|
| 1196 |
|
|
RETURN(0);
|
| 1197 |
|
|
} else
|
| 1198 |
|
|
RETURN(-ENODEV);
|
| 1199 |
|
|
case IIOCNETASL:
|
| 1200 |
|
|
/* Add a slave to a network-interface */
|
| 1201 |
|
|
if (arg) {
|
| 1202 |
|
|
if ((ret = copy_from_user(bname, (char *) arg, sizeof(bname) - 1)))
|
| 1203 |
|
|
RETURN(ret);
|
| 1204 |
|
|
} else
|
| 1205 |
|
|
RETURN(-EINVAL);
|
| 1206 |
|
|
if ((s = isdn_net_newslave(bname))) {
|
| 1207 |
|
|
if ((ret = copy_to_user((char *) arg, s, strlen(s) + 1)))
|
| 1208 |
|
|
RETURN(ret);
|
| 1209 |
|
|
RETURN(0);
|
| 1210 |
|
|
} else
|
| 1211 |
|
|
RETURN(-ENODEV);
|
| 1212 |
|
|
case IIOCNETDIF:
|
| 1213 |
|
|
/* Delete a network-interface */
|
| 1214 |
|
|
if (arg) {
|
| 1215 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1216 |
|
|
RETURN(ret);
|
| 1217 |
|
|
RETURN(isdn_net_rm(name));
|
| 1218 |
|
|
} else
|
| 1219 |
|
|
RETURN(-EINVAL);
|
| 1220 |
|
|
case IIOCNETSCF:
|
| 1221 |
|
|
/* Set configurable parameters of a network-interface */
|
| 1222 |
|
|
if (arg) {
|
| 1223 |
|
|
if ((ret = copy_from_user((char *) &cfg, (char *) arg, sizeof(cfg))))
|
| 1224 |
|
|
RETURN(ret);
|
| 1225 |
|
|
RETURN(isdn_net_setcfg(&cfg));
|
| 1226 |
|
|
} else
|
| 1227 |
|
|
RETURN(-EINVAL);
|
| 1228 |
|
|
case IIOCNETGCF:
|
| 1229 |
|
|
/* Get configurable parameters of a network-interface */
|
| 1230 |
|
|
if (arg) {
|
| 1231 |
|
|
if ((ret = copy_from_user((char *) &cfg, (char *) arg, sizeof(cfg))))
|
| 1232 |
|
|
RETURN(ret);
|
| 1233 |
|
|
if (!(ret = isdn_net_getcfg(&cfg))) {
|
| 1234 |
|
|
if ((ret = copy_to_user((char *) arg, (char *) &cfg, sizeof(cfg))))
|
| 1235 |
|
|
RETURN(ret);
|
| 1236 |
|
|
}
|
| 1237 |
|
|
RETURN(ret);
|
| 1238 |
|
|
} else
|
| 1239 |
|
|
RETURN(-EINVAL);
|
| 1240 |
|
|
case IIOCNETANM:
|
| 1241 |
|
|
/* Add a phone-number to a network-interface */
|
| 1242 |
|
|
if (arg) {
|
| 1243 |
|
|
if ((ret = copy_from_user((char *) &phone, (char *) arg, sizeof(phone))))
|
| 1244 |
|
|
RETURN(ret);
|
| 1245 |
|
|
RETURN(isdn_net_addphone(&phone));
|
| 1246 |
|
|
} else
|
| 1247 |
|
|
RETURN(-EINVAL);
|
| 1248 |
|
|
case IIOCNETGNM:
|
| 1249 |
|
|
/* Get list of phone-numbers of a network-interface */
|
| 1250 |
|
|
if (arg) {
|
| 1251 |
|
|
if ((ret = copy_from_user((char *) &phone, (char *) arg, sizeof(phone))))
|
| 1252 |
|
|
RETURN(ret);
|
| 1253 |
|
|
RETURN(isdn_net_getphones(&phone, (char *) arg));
|
| 1254 |
|
|
} else
|
| 1255 |
|
|
RETURN(-EINVAL);
|
| 1256 |
|
|
case IIOCNETDNM:
|
| 1257 |
|
|
/* Delete a phone-number of a network-interface */
|
| 1258 |
|
|
if (arg) {
|
| 1259 |
|
|
if ((ret = copy_from_user((char *) &phone, (char *) arg, sizeof(phone))))
|
| 1260 |
|
|
RETURN(ret);
|
| 1261 |
|
|
RETURN(isdn_net_delphone(&phone));
|
| 1262 |
|
|
} else
|
| 1263 |
|
|
RETURN(-EINVAL);
|
| 1264 |
|
|
case IIOCNETDIL:
|
| 1265 |
|
|
/* Force dialing of a network-interface */
|
| 1266 |
|
|
if (arg) {
|
| 1267 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1268 |
|
|
RETURN(ret);
|
| 1269 |
|
|
RETURN(isdn_net_force_dial(name));
|
| 1270 |
|
|
} else
|
| 1271 |
|
|
RETURN(-EINVAL);
|
| 1272 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1273 |
|
|
case IIOCNETALN:
|
| 1274 |
|
|
if (!arg)
|
| 1275 |
|
|
RETURN(-EINVAL);
|
| 1276 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1277 |
|
|
RETURN(ret);
|
| 1278 |
|
|
RETURN(isdn_ppp_dial_slave(name));
|
| 1279 |
|
|
case IIOCNETDLN:
|
| 1280 |
|
|
if (!arg)
|
| 1281 |
|
|
RETURN(-EINVAL);
|
| 1282 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1283 |
|
|
RETURN(ret);
|
| 1284 |
|
|
RETURN(isdn_ppp_hangup_slave(name));
|
| 1285 |
|
|
#endif
|
| 1286 |
|
|
case IIOCNETHUP:
|
| 1287 |
|
|
/* Force hangup of a network-interface */
|
| 1288 |
|
|
if (!arg)
|
| 1289 |
|
|
RETURN(-EINVAL);
|
| 1290 |
|
|
if ((ret = copy_from_user(name, (char *) arg, sizeof(name))))
|
| 1291 |
|
|
RETURN(ret);
|
| 1292 |
|
|
RETURN(isdn_net_force_hangup(name));
|
| 1293 |
|
|
break;
|
| 1294 |
|
|
#endif /* CONFIG_NETDEVICES */
|
| 1295 |
|
|
case IIOCSETVER:
|
| 1296 |
|
|
dev->net_verbose = arg;
|
| 1297 |
|
|
printk(KERN_INFO "isdn: Verbose-Level is %d\n", dev->net_verbose);
|
| 1298 |
|
|
RETURN(0);
|
| 1299 |
|
|
case IIOCSETGST:
|
| 1300 |
|
|
if (arg)
|
| 1301 |
|
|
dev->global_flags |= ISDN_GLOBAL_STOPPED;
|
| 1302 |
|
|
else
|
| 1303 |
|
|
dev->global_flags &= ~ISDN_GLOBAL_STOPPED;
|
| 1304 |
|
|
printk(KERN_INFO "isdn: Global Mode %s\n",
|
| 1305 |
|
|
(dev->global_flags & ISDN_GLOBAL_STOPPED) ? "stopped" : "running");
|
| 1306 |
|
|
RETURN(0);
|
| 1307 |
|
|
case IIOCSETBRJ:
|
| 1308 |
|
|
drvidx = -1;
|
| 1309 |
|
|
if (arg) {
|
| 1310 |
|
|
int i;
|
| 1311 |
|
|
char *p;
|
| 1312 |
|
|
if ((ret = copy_from_user((char *) &iocts, (char *) arg,
|
| 1313 |
|
|
sizeof(isdn_ioctl_struct))))
|
| 1314 |
|
|
RETURN(ret);
|
| 1315 |
|
|
if (strlen(iocts.drvid)) {
|
| 1316 |
|
|
if ((p = strchr(iocts.drvid, ',')))
|
| 1317 |
|
|
*p = 0;
|
| 1318 |
|
|
drvidx = -1;
|
| 1319 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++)
|
| 1320 |
|
|
if (!(strcmp(dev->drvid[i], iocts.drvid))) {
|
| 1321 |
|
|
drvidx = i;
|
| 1322 |
|
|
break;
|
| 1323 |
|
|
}
|
| 1324 |
|
|
}
|
| 1325 |
|
|
}
|
| 1326 |
|
|
if (drvidx == -1)
|
| 1327 |
|
|
RETURN(-ENODEV);
|
| 1328 |
|
|
if (iocts.arg)
|
| 1329 |
|
|
dev->drv[drvidx]->flags |= DRV_FLAG_REJBUS;
|
| 1330 |
|
|
else
|
| 1331 |
|
|
dev->drv[drvidx]->flags &= ~DRV_FLAG_REJBUS;
|
| 1332 |
|
|
RETURN(0);
|
| 1333 |
|
|
case IIOCSIGPRF:
|
| 1334 |
|
|
dev->profd = current;
|
| 1335 |
|
|
RETURN(0);
|
| 1336 |
|
|
break;
|
| 1337 |
|
|
case IIOCGETPRF:
|
| 1338 |
|
|
/* Get all Modem-Profiles */
|
| 1339 |
|
|
if (arg) {
|
| 1340 |
|
|
char *p = (char *) arg;
|
| 1341 |
|
|
int i;
|
| 1342 |
|
|
|
| 1343 |
|
|
if ((ret = verify_area(VERIFY_WRITE, (void *) arg,
|
| 1344 |
|
|
(ISDN_MODEM_ANZREG + ISDN_MSNLEN)
|
| 1345 |
|
|
* ISDN_MAX_CHANNELS)))
|
| 1346 |
|
|
RETURN(ret);
|
| 1347 |
|
|
|
| 1348 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 1349 |
|
|
if (copy_to_user(p, dev->mdm.info[i].emu.profile,
|
| 1350 |
|
|
ISDN_MODEM_ANZREG))
|
| 1351 |
|
|
RETURN(-EFAULT);
|
| 1352 |
|
|
p += ISDN_MODEM_ANZREG;
|
| 1353 |
|
|
if (copy_to_user(p, dev->mdm.info[i].emu.pmsn, ISDN_MSNLEN))
|
| 1354 |
|
|
RETURN(-EFAULT);
|
| 1355 |
|
|
p += ISDN_MSNLEN;
|
| 1356 |
|
|
}
|
| 1357 |
|
|
RETURN((ISDN_MODEM_ANZREG + ISDN_MSNLEN) * ISDN_MAX_CHANNELS);
|
| 1358 |
|
|
} else
|
| 1359 |
|
|
RETURN(-EINVAL);
|
| 1360 |
|
|
break;
|
| 1361 |
|
|
case IIOCSETPRF:
|
| 1362 |
|
|
/* Set all Modem-Profiles */
|
| 1363 |
|
|
if (arg) {
|
| 1364 |
|
|
char *p = (char *) arg;
|
| 1365 |
|
|
int i;
|
| 1366 |
|
|
|
| 1367 |
|
|
if ((ret = verify_area(VERIFY_READ, (void *) arg,
|
| 1368 |
|
|
(ISDN_MODEM_ANZREG + ISDN_MSNLEN)
|
| 1369 |
|
|
* ISDN_MAX_CHANNELS)))
|
| 1370 |
|
|
RETURN(ret);
|
| 1371 |
|
|
|
| 1372 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 1373 |
|
|
if ((ret = copy_from_user(dev->mdm.info[i].emu.profile, p,
|
| 1374 |
|
|
ISDN_MODEM_ANZREG)))
|
| 1375 |
|
|
RETURN(ret);
|
| 1376 |
|
|
p += ISDN_MODEM_ANZREG;
|
| 1377 |
|
|
if ((ret = copy_from_user(dev->mdm.info[i].emu.pmsn, p, ISDN_MSNLEN)))
|
| 1378 |
|
|
RETURN(ret);
|
| 1379 |
|
|
p += ISDN_MSNLEN;
|
| 1380 |
|
|
}
|
| 1381 |
|
|
RETURN(0);
|
| 1382 |
|
|
} else
|
| 1383 |
|
|
RETURN(-EINVAL);
|
| 1384 |
|
|
break;
|
| 1385 |
|
|
case IIOCSETMAP:
|
| 1386 |
|
|
case IIOCGETMAP:
|
| 1387 |
|
|
/* Set/Get MSN->EAZ-Mapping for a driver */
|
| 1388 |
|
|
if (arg) {
|
| 1389 |
|
|
|
| 1390 |
|
|
if ((ret = copy_from_user((char *) &iocts,
|
| 1391 |
|
|
(char *) arg,
|
| 1392 |
|
|
sizeof(isdn_ioctl_struct))))
|
| 1393 |
|
|
RETURN(ret);
|
| 1394 |
|
|
if (strlen(iocts.drvid)) {
|
| 1395 |
|
|
drvidx = -1;
|
| 1396 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++)
|
| 1397 |
|
|
if (!(strcmp(dev->drvid[i], iocts.drvid))) {
|
| 1398 |
|
|
drvidx = i;
|
| 1399 |
|
|
break;
|
| 1400 |
|
|
}
|
| 1401 |
|
|
} else
|
| 1402 |
|
|
drvidx = 0;
|
| 1403 |
|
|
if (drvidx == -1)
|
| 1404 |
|
|
RETURN(-ENODEV);
|
| 1405 |
|
|
if (cmd == IIOCSETMAP) {
|
| 1406 |
|
|
int loop = 1;
|
| 1407 |
|
|
|
| 1408 |
|
|
p = (char *) iocts.arg;
|
| 1409 |
|
|
i = 0;
|
| 1410 |
|
|
while (loop) {
|
| 1411 |
|
|
int j = 0;
|
| 1412 |
|
|
|
| 1413 |
|
|
while (1) {
|
| 1414 |
|
|
if ((ret = verify_area(VERIFY_READ, p, 1)))
|
| 1415 |
|
|
RETURN(ret);
|
| 1416 |
|
|
GET_USER(bname[j], p++);
|
| 1417 |
|
|
switch (bname[j]) {
|
| 1418 |
|
|
case '\0':
|
| 1419 |
|
|
loop = 0;
|
| 1420 |
|
|
/* Fall through */
|
| 1421 |
|
|
case ',':
|
| 1422 |
|
|
bname[j] = '\0';
|
| 1423 |
|
|
strcpy(dev->drv[drvidx]->msn2eaz[i], bname);
|
| 1424 |
|
|
j = ISDN_MSNLEN;
|
| 1425 |
|
|
break;
|
| 1426 |
|
|
default:
|
| 1427 |
|
|
j++;
|
| 1428 |
|
|
}
|
| 1429 |
|
|
if (j >= ISDN_MSNLEN)
|
| 1430 |
|
|
break;
|
| 1431 |
|
|
}
|
| 1432 |
|
|
if (++i > 9)
|
| 1433 |
|
|
break;
|
| 1434 |
|
|
}
|
| 1435 |
|
|
} else {
|
| 1436 |
|
|
p = (char *) iocts.arg;
|
| 1437 |
|
|
for (i = 0; i < 10; i++) {
|
| 1438 |
|
|
sprintf(bname, "%s%s",
|
| 1439 |
|
|
strlen(dev->drv[drvidx]->msn2eaz[i]) ?
|
| 1440 |
|
|
dev->drv[drvidx]->msn2eaz[i] : "-",
|
| 1441 |
|
|
(i < 9) ? "," : "\0");
|
| 1442 |
|
|
if ((ret = copy_to_user(p, bname, strlen(bname) + 1)))
|
| 1443 |
|
|
RETURN(ret);
|
| 1444 |
|
|
p += strlen(bname);
|
| 1445 |
|
|
}
|
| 1446 |
|
|
}
|
| 1447 |
|
|
RETURN(0);
|
| 1448 |
|
|
} else
|
| 1449 |
|
|
RETURN(-EINVAL);
|
| 1450 |
|
|
case IIOCDBGVAR:
|
| 1451 |
|
|
if (arg) {
|
| 1452 |
|
|
if ((ret = copy_to_user((char *) arg, (char *) &dev, sizeof(ulong))))
|
| 1453 |
|
|
RETURN(ret);
|
| 1454 |
|
|
RETURN(0);
|
| 1455 |
|
|
} else
|
| 1456 |
|
|
RETURN(-EINVAL);
|
| 1457 |
|
|
break;
|
| 1458 |
|
|
default:
|
| 1459 |
|
|
if ((cmd & IIOCDRVCTL) == IIOCDRVCTL)
|
| 1460 |
|
|
cmd = ((cmd >> _IOC_NRSHIFT) & _IOC_NRMASK) & ISDN_DRVIOCTL_MASK;
|
| 1461 |
|
|
else
|
| 1462 |
|
|
RETURN(-EINVAL);
|
| 1463 |
|
|
if (arg) {
|
| 1464 |
|
|
int i;
|
| 1465 |
|
|
char *p;
|
| 1466 |
|
|
if ((ret = copy_from_user((char *) &iocts, (char *) arg, sizeof(isdn_ioctl_struct))))
|
| 1467 |
|
|
RETURN(ret);
|
| 1468 |
|
|
if (strlen(iocts.drvid)) {
|
| 1469 |
|
|
if ((p = strchr(iocts.drvid, ',')))
|
| 1470 |
|
|
*p = 0;
|
| 1471 |
|
|
drvidx = -1;
|
| 1472 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++)
|
| 1473 |
|
|
if (!(strcmp(dev->drvid[i], iocts.drvid))) {
|
| 1474 |
|
|
drvidx = i;
|
| 1475 |
|
|
break;
|
| 1476 |
|
|
}
|
| 1477 |
|
|
} else
|
| 1478 |
|
|
drvidx = 0;
|
| 1479 |
|
|
if (drvidx == -1)
|
| 1480 |
|
|
RETURN(-ENODEV);
|
| 1481 |
|
|
if ((ret = verify_area(VERIFY_WRITE, (void *) arg,
|
| 1482 |
|
|
sizeof(isdn_ioctl_struct))))
|
| 1483 |
|
|
RETURN(ret);
|
| 1484 |
|
|
c.driver = drvidx;
|
| 1485 |
|
|
c.command = ISDN_CMD_IOCTL;
|
| 1486 |
|
|
c.arg = cmd;
|
| 1487 |
|
|
memcpy(c.parm.num, (char *) &iocts.arg, sizeof(ulong));
|
| 1488 |
|
|
ret = isdn_command(&c);
|
| 1489 |
|
|
memcpy((char *) &iocts.arg, c.parm.num, sizeof(ulong));
|
| 1490 |
|
|
if ((copy_to_user((char *) arg, &iocts, sizeof(isdn_ioctl_struct))))
|
| 1491 |
|
|
RETURN(-EFAULT);
|
| 1492 |
|
|
RETURN(ret);
|
| 1493 |
|
|
} else
|
| 1494 |
|
|
RETURN(-EINVAL);
|
| 1495 |
|
|
}
|
| 1496 |
|
|
}
|
| 1497 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1498 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 1499 |
|
|
return (isdn_ppp_ioctl(minor - ISDN_MINOR_PPP, file, cmd, arg));
|
| 1500 |
|
|
#endif
|
| 1501 |
|
|
return -ENODEV;
|
| 1502 |
|
|
|
| 1503 |
|
|
#undef name
|
| 1504 |
|
|
#undef bname
|
| 1505 |
|
|
#undef iocts
|
| 1506 |
|
|
#undef phone
|
| 1507 |
|
|
#undef cfg
|
| 1508 |
|
|
|
| 1509 |
|
|
#undef RETURN
|
| 1510 |
|
|
}
|
| 1511 |
|
|
|
| 1512 |
|
|
/*
|
| 1513 |
|
|
* Open the device code.
|
| 1514 |
|
|
* MOD_INC_USE_COUNT make sure that the driver memory is not freed
|
| 1515 |
|
|
* while the device is in use.
|
| 1516 |
|
|
*/
|
| 1517 |
|
|
static int
|
| 1518 |
|
|
isdn_open(struct inode *ino, struct file *filep)
|
| 1519 |
|
|
{
|
| 1520 |
|
|
uint minor = MINOR(ino->i_rdev);
|
| 1521 |
|
|
int drvidx;
|
| 1522 |
|
|
int chidx;
|
| 1523 |
|
|
|
| 1524 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 1525 |
|
|
infostruct *p;
|
| 1526 |
|
|
|
| 1527 |
|
|
if ((p = (infostruct *) kmalloc(sizeof(infostruct), GFP_KERNEL))) {
|
| 1528 |
|
|
MOD_INC_USE_COUNT;
|
| 1529 |
|
|
p->next = (char *) dev->infochain;
|
| 1530 |
|
|
p->private = (char *) &(filep->private_data);
|
| 1531 |
|
|
dev->infochain = p;
|
| 1532 |
|
|
/* At opening we allow a single update */
|
| 1533 |
|
|
filep->private_data = (char *) 1;
|
| 1534 |
|
|
return 0;
|
| 1535 |
|
|
} else
|
| 1536 |
|
|
return -ENOMEM;
|
| 1537 |
|
|
}
|
| 1538 |
|
|
if (!dev->channels)
|
| 1539 |
|
|
return -ENODEV;
|
| 1540 |
|
|
if (minor < ISDN_MINOR_CTRL) {
|
| 1541 |
|
|
drvidx = isdn_minor2drv(minor);
|
| 1542 |
|
|
if (drvidx < 0)
|
| 1543 |
|
|
return -ENODEV;
|
| 1544 |
|
|
chidx = isdn_minor2chan(minor);
|
| 1545 |
|
|
if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
|
| 1546 |
|
|
return -ENODEV;
|
| 1547 |
|
|
if (!(dev->drv[drvidx]->online & (1 << chidx)))
|
| 1548 |
|
|
return -ENODEV;
|
| 1549 |
|
|
isdn_MOD_INC_USE_COUNT();
|
| 1550 |
|
|
return 0;
|
| 1551 |
|
|
}
|
| 1552 |
|
|
if (minor <= ISDN_MINOR_CTRLMAX) {
|
| 1553 |
|
|
drvidx = isdn_minor2drv(minor - ISDN_MINOR_CTRL);
|
| 1554 |
|
|
if (drvidx < 0)
|
| 1555 |
|
|
return -ENODEV;
|
| 1556 |
|
|
isdn_MOD_INC_USE_COUNT();
|
| 1557 |
|
|
return 0;
|
| 1558 |
|
|
}
|
| 1559 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1560 |
|
|
if (minor <= ISDN_MINOR_PPPMAX) {
|
| 1561 |
|
|
int ret;
|
| 1562 |
|
|
if (!(ret = isdn_ppp_open(minor - ISDN_MINOR_PPP, filep)))
|
| 1563 |
|
|
isdn_MOD_INC_USE_COUNT();
|
| 1564 |
|
|
return ret;
|
| 1565 |
|
|
}
|
| 1566 |
|
|
#endif
|
| 1567 |
|
|
return -ENODEV;
|
| 1568 |
|
|
}
|
| 1569 |
|
|
|
| 1570 |
|
|
static CLOSETYPE
|
| 1571 |
|
|
isdn_close(struct inode *ino, struct file *filep)
|
| 1572 |
|
|
{
|
| 1573 |
|
|
uint minor = MINOR(ino->i_rdev);
|
| 1574 |
|
|
|
| 1575 |
|
|
if (minor == ISDN_MINOR_STATUS) {
|
| 1576 |
|
|
infostruct *p = dev->infochain;
|
| 1577 |
|
|
infostruct *q = NULL;
|
| 1578 |
|
|
|
| 1579 |
|
|
|
| 1580 |
|
|
MOD_DEC_USE_COUNT;
|
| 1581 |
|
|
while (p) {
|
| 1582 |
|
|
if (p->private == (char *) &(filep->private_data)) {
|
| 1583 |
|
|
if (q)
|
| 1584 |
|
|
q->next = p->next;
|
| 1585 |
|
|
else
|
| 1586 |
|
|
dev->infochain = (infostruct *) (p->next);
|
| 1587 |
|
|
kfree(p);
|
| 1588 |
|
|
return CLOSEVAL;
|
| 1589 |
|
|
}
|
| 1590 |
|
|
q = p;
|
| 1591 |
|
|
p = (infostruct *) (p->next);
|
| 1592 |
|
|
}
|
| 1593 |
|
|
printk(KERN_WARNING "isdn: No private data while closing isdnctrl\n");
|
| 1594 |
|
|
return CLOSEVAL;
|
| 1595 |
|
|
}
|
| 1596 |
|
|
isdn_MOD_DEC_USE_COUNT();
|
| 1597 |
|
|
if (minor < ISDN_MINOR_CTRL)
|
| 1598 |
|
|
return CLOSEVAL;
|
| 1599 |
|
|
if (minor <= ISDN_MINOR_CTRLMAX) {
|
| 1600 |
|
|
if (dev->profd == current)
|
| 1601 |
|
|
dev->profd = NULL;
|
| 1602 |
|
|
return CLOSEVAL;
|
| 1603 |
|
|
}
|
| 1604 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1605 |
|
|
if (minor <= ISDN_MINOR_PPPMAX)
|
| 1606 |
|
|
isdn_ppp_release(minor - ISDN_MINOR_PPP, filep);
|
| 1607 |
|
|
#endif
|
| 1608 |
|
|
return CLOSEVAL;
|
| 1609 |
|
|
}
|
| 1610 |
|
|
|
| 1611 |
|
|
static struct file_operations isdn_fops =
|
| 1612 |
|
|
{
|
| 1613 |
|
|
isdn_lseek,
|
| 1614 |
|
|
isdn_read,
|
| 1615 |
|
|
isdn_write,
|
| 1616 |
|
|
NULL, /* isdn_readdir */
|
| 1617 |
|
|
#if (LINUX_VERSION_CODE < 0x020117)
|
| 1618 |
|
|
isdn_select, /* isdn_select */
|
| 1619 |
|
|
#else
|
| 1620 |
|
|
isdn_poll, /* isdn_poll */
|
| 1621 |
|
|
#endif
|
| 1622 |
|
|
isdn_ioctl, /* isdn_ioctl */
|
| 1623 |
|
|
NULL, /* isdn_mmap */
|
| 1624 |
|
|
isdn_open,
|
| 1625 |
|
|
isdn_close,
|
| 1626 |
|
|
NULL /* fsync */
|
| 1627 |
|
|
};
|
| 1628 |
|
|
|
| 1629 |
|
|
char *
|
| 1630 |
|
|
isdn_map_eaz2msn(char *msn, int di)
|
| 1631 |
|
|
{
|
| 1632 |
|
|
driver *this = dev->drv[di];
|
| 1633 |
|
|
int i;
|
| 1634 |
|
|
|
| 1635 |
|
|
if (strlen(msn) == 1) {
|
| 1636 |
|
|
i = msn[0] - '0';
|
| 1637 |
|
|
if ((i >= 0) && (i <= 9))
|
| 1638 |
|
|
if (strlen(this->msn2eaz[i]))
|
| 1639 |
|
|
return (this->msn2eaz[i]);
|
| 1640 |
|
|
}
|
| 1641 |
|
|
return (msn);
|
| 1642 |
|
|
}
|
| 1643 |
|
|
|
| 1644 |
|
|
/*
|
| 1645 |
|
|
* Find an unused ISDN-channel, whose feature-flags match the
|
| 1646 |
|
|
* given L2- and L3-protocols.
|
| 1647 |
|
|
*/
|
| 1648 |
|
|
int
|
| 1649 |
|
|
isdn_get_free_channel(int usage, int l2_proto, int l3_proto, int pre_dev
|
| 1650 |
|
|
,int pre_chan)
|
| 1651 |
|
|
{
|
| 1652 |
|
|
int i;
|
| 1653 |
|
|
ulong flags;
|
| 1654 |
|
|
ulong features;
|
| 1655 |
|
|
|
| 1656 |
|
|
save_flags(flags);
|
| 1657 |
|
|
cli();
|
| 1658 |
|
|
features = (1 << l2_proto) | (0x100 << l3_proto);
|
| 1659 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 1660 |
|
|
if (USG_NONE(dev->usage[i]) &&
|
| 1661 |
|
|
(dev->drvmap[i] != -1)) {
|
| 1662 |
|
|
int d = dev->drvmap[i];
|
| 1663 |
|
|
if ((dev->usage[i] & ISDN_USAGE_EXCLUSIVE) &&
|
| 1664 |
|
|
((pre_dev != d) || (pre_chan != dev->chanmap[i])))
|
| 1665 |
|
|
continue;
|
| 1666 |
|
|
if (dev->drv[d]->flags & DRV_FLAG_RUNNING) {
|
| 1667 |
|
|
if ((dev->drv[d]->interface->features & features) == features) {
|
| 1668 |
|
|
if ((pre_dev < 0) || (pre_chan < 0)) {
|
| 1669 |
|
|
dev->usage[i] &= ISDN_USAGE_EXCLUSIVE;
|
| 1670 |
|
|
dev->usage[i] |= usage;
|
| 1671 |
|
|
isdn_info_update();
|
| 1672 |
|
|
restore_flags(flags);
|
| 1673 |
|
|
return i;
|
| 1674 |
|
|
} else {
|
| 1675 |
|
|
if ((pre_dev == d) && (pre_chan == dev->chanmap[i])) {
|
| 1676 |
|
|
dev->usage[i] &= ISDN_USAGE_EXCLUSIVE;
|
| 1677 |
|
|
dev->usage[i] |= usage;
|
| 1678 |
|
|
isdn_info_update();
|
| 1679 |
|
|
restore_flags(flags);
|
| 1680 |
|
|
return i;
|
| 1681 |
|
|
}
|
| 1682 |
|
|
}
|
| 1683 |
|
|
}
|
| 1684 |
|
|
}
|
| 1685 |
|
|
}
|
| 1686 |
|
|
restore_flags(flags);
|
| 1687 |
|
|
return -1;
|
| 1688 |
|
|
}
|
| 1689 |
|
|
|
| 1690 |
|
|
/*
|
| 1691 |
|
|
* Set state of ISDN-channel to 'unused'
|
| 1692 |
|
|
*/
|
| 1693 |
|
|
void
|
| 1694 |
|
|
isdn_free_channel(int di, int ch, int usage)
|
| 1695 |
|
|
{
|
| 1696 |
|
|
int i;
|
| 1697 |
|
|
ulong flags;
|
| 1698 |
|
|
isdn_ctrl cmd;
|
| 1699 |
|
|
|
| 1700 |
|
|
save_flags(flags);
|
| 1701 |
|
|
cli();
|
| 1702 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 1703 |
|
|
if (((dev->usage[i] & ISDN_USAGE_MASK) == usage) &&
|
| 1704 |
|
|
(dev->drvmap[i] == di) &&
|
| 1705 |
|
|
(dev->chanmap[i] == ch)) {
|
| 1706 |
|
|
dev->usage[i] &= (ISDN_USAGE_NONE | ISDN_USAGE_EXCLUSIVE);
|
| 1707 |
|
|
strcpy(dev->num[i], "???");
|
| 1708 |
|
|
dev->ibytes[i] = 0;
|
| 1709 |
|
|
dev->obytes[i] = 0;
|
| 1710 |
|
|
isdn_info_update();
|
| 1711 |
|
|
isdn_free_queue(&dev->drv[di]->rpqueue[ch]);
|
| 1712 |
|
|
cmd.driver = di;
|
| 1713 |
|
|
cmd.arg = ch;
|
| 1714 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 1715 |
|
|
restore_flags(flags);
|
| 1716 |
|
|
isdn_command(&cmd);
|
| 1717 |
|
|
return;
|
| 1718 |
|
|
}
|
| 1719 |
|
|
printk(KERN_DEBUG "Unmatched free_channel d=%d c=%d u=%d\n", di, ch, usage);
|
| 1720 |
|
|
restore_flags(flags);
|
| 1721 |
|
|
}
|
| 1722 |
|
|
|
| 1723 |
|
|
/*
|
| 1724 |
|
|
* Cancel Exclusive-Flag for ISDN-channel
|
| 1725 |
|
|
*/
|
| 1726 |
|
|
void
|
| 1727 |
|
|
isdn_unexclusive_channel(int di, int ch)
|
| 1728 |
|
|
{
|
| 1729 |
|
|
int i;
|
| 1730 |
|
|
ulong flags;
|
| 1731 |
|
|
|
| 1732 |
|
|
save_flags(flags);
|
| 1733 |
|
|
cli();
|
| 1734 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 1735 |
|
|
if ((dev->drvmap[i] == di) &&
|
| 1736 |
|
|
(dev->chanmap[i] == ch)) {
|
| 1737 |
|
|
dev->usage[i] &= ~ISDN_USAGE_EXCLUSIVE;
|
| 1738 |
|
|
isdn_info_update();
|
| 1739 |
|
|
restore_flags(flags);
|
| 1740 |
|
|
return;
|
| 1741 |
|
|
}
|
| 1742 |
|
|
restore_flags(flags);
|
| 1743 |
|
|
}
|
| 1744 |
|
|
|
| 1745 |
|
|
/*
|
| 1746 |
|
|
* receive callback handler for drivers not supporting sk_buff's.
|
| 1747 |
|
|
* Parameters:
|
| 1748 |
|
|
*
|
| 1749 |
|
|
* di = Driver-Index.
|
| 1750 |
|
|
* channel = Number of B-Channel (0...)
|
| 1751 |
|
|
* buf = pointer to packet-data
|
| 1752 |
|
|
* len = Length of packet-data
|
| 1753 |
|
|
*
|
| 1754 |
|
|
*/
|
| 1755 |
|
|
static void
|
| 1756 |
|
|
isdn_receive_callback(int drvidx, int chan, u_char * buf, int len)
|
| 1757 |
|
|
{
|
| 1758 |
|
|
struct sk_buff *skb;
|
| 1759 |
|
|
|
| 1760 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 1761 |
|
|
return;
|
| 1762 |
|
|
skb = dev_alloc_skb(len);
|
| 1763 |
|
|
if (skb) {
|
| 1764 |
|
|
memcpy(skb_put(skb, len), buf, len);
|
| 1765 |
|
|
isdn_receive_skb_callback(drvidx, chan, skb);
|
| 1766 |
|
|
} else
|
| 1767 |
|
|
printk(KERN_WARNING "isdn: rcv alloc_skb failed, packet dropped.\n");
|
| 1768 |
|
|
}
|
| 1769 |
|
|
|
| 1770 |
|
|
/*
|
| 1771 |
|
|
* writebuf replacement for SKB_ABLE drivers
|
| 1772 |
|
|
*/
|
| 1773 |
|
|
static int
|
| 1774 |
|
|
isdn_writebuf_stub(int drvidx, int chan, const u_char * buf, int len,
|
| 1775 |
|
|
int user)
|
| 1776 |
|
|
{
|
| 1777 |
|
|
int ret;
|
| 1778 |
|
|
|
| 1779 |
|
|
if (dev->drv[drvidx]->interface->writebuf)
|
| 1780 |
|
|
ret = dev->drv[drvidx]->interface->writebuf(drvidx, chan, buf,
|
| 1781 |
|
|
len, user);
|
| 1782 |
|
|
else {
|
| 1783 |
|
|
struct sk_buff *skb;
|
| 1784 |
|
|
|
| 1785 |
|
|
skb = alloc_skb(dev->drv[drvidx]->interface->hl_hdrlen + len,
|
| 1786 |
|
|
GFP_ATOMIC);
|
| 1787 |
|
|
if (skb == NULL)
|
| 1788 |
|
|
return 0;
|
| 1789 |
|
|
|
| 1790 |
|
|
skb_reserve(skb, dev->drv[drvidx]->interface->hl_hdrlen);
|
| 1791 |
|
|
SET_SKB_FREE(skb);
|
| 1792 |
|
|
|
| 1793 |
|
|
if (user)
|
| 1794 |
|
|
copy_from_user(skb_put(skb, len), buf, len);
|
| 1795 |
|
|
else
|
| 1796 |
|
|
memcpy(skb_put(skb, len), buf, len);
|
| 1797 |
|
|
|
| 1798 |
|
|
ret = dev->drv[drvidx]->interface->writebuf_skb(drvidx,
|
| 1799 |
|
|
chan, skb);
|
| 1800 |
|
|
if (ret <= 0)
|
| 1801 |
|
|
kfree_skb(skb, FREE_WRITE);
|
| 1802 |
|
|
}
|
| 1803 |
|
|
if (ret > 0)
|
| 1804 |
|
|
dev->obytes[isdn_dc2minor(drvidx, chan)] += ret;
|
| 1805 |
|
|
return ret;
|
| 1806 |
|
|
}
|
| 1807 |
|
|
|
| 1808 |
|
|
/*
|
| 1809 |
|
|
* writebuf_skb replacement for NON SKB_ABLE drivers
|
| 1810 |
|
|
* If lowlevel-device does not support supports skbufs, use
|
| 1811 |
|
|
* standard send-routine, else sind directly.
|
| 1812 |
|
|
*
|
| 1813 |
|
|
* Return: length of data on success, -ERRcode on failure.
|
| 1814 |
|
|
*/
|
| 1815 |
|
|
|
| 1816 |
|
|
int
|
| 1817 |
|
|
isdn_writebuf_skb_stub(int drvidx, int chan, struct sk_buff *skb)
|
| 1818 |
|
|
{
|
| 1819 |
|
|
int ret;
|
| 1820 |
|
|
int len = skb->len; /* skb pointer no longer valid after free */
|
| 1821 |
|
|
|
| 1822 |
|
|
if (dev->drv[drvidx]->interface->writebuf_skb)
|
| 1823 |
|
|
ret = dev->drv[drvidx]->interface->
|
| 1824 |
|
|
writebuf_skb(drvidx, chan, skb);
|
| 1825 |
|
|
else {
|
| 1826 |
|
|
if ((ret = dev->drv[drvidx]->interface->
|
| 1827 |
|
|
writebuf(drvidx, chan, skb->data, skb->len, 0)) == len)
|
| 1828 |
|
|
dev_kfree_skb(skb, FREE_WRITE);
|
| 1829 |
|
|
}
|
| 1830 |
|
|
if (ret > 0)
|
| 1831 |
|
|
dev->obytes[isdn_dc2minor(drvidx, chan)] += len;
|
| 1832 |
|
|
return ret;
|
| 1833 |
|
|
}
|
| 1834 |
|
|
|
| 1835 |
|
|
/*
|
| 1836 |
|
|
* Low-level-driver registration
|
| 1837 |
|
|
*/
|
| 1838 |
|
|
|
| 1839 |
|
|
int
|
| 1840 |
|
|
register_isdn(isdn_if * i)
|
| 1841 |
|
|
{
|
| 1842 |
|
|
driver *d;
|
| 1843 |
|
|
int n,
|
| 1844 |
|
|
j,
|
| 1845 |
|
|
k;
|
| 1846 |
|
|
ulong flags;
|
| 1847 |
|
|
int drvidx;
|
| 1848 |
|
|
|
| 1849 |
|
|
if (dev->drivers >= ISDN_MAX_DRIVERS) {
|
| 1850 |
|
|
printk(KERN_WARNING "register_isdn: Max. %d drivers supported\n",
|
| 1851 |
|
|
ISDN_MAX_DRIVERS);
|
| 1852 |
|
|
return 0;
|
| 1853 |
|
|
}
|
| 1854 |
|
|
n = i->channels;
|
| 1855 |
|
|
if (dev->channels + n > ISDN_MAX_CHANNELS) {
|
| 1856 |
|
|
printk(KERN_WARNING "register_isdn: Max. %d channels supported\n",
|
| 1857 |
|
|
ISDN_MAX_CHANNELS);
|
| 1858 |
|
|
return 0;
|
| 1859 |
|
|
}
|
| 1860 |
|
|
if ((!i->writebuf_skb) && (!i->writebuf)) {
|
| 1861 |
|
|
printk(KERN_WARNING "register_isdn: No write routine given.\n");
|
| 1862 |
|
|
return 0;
|
| 1863 |
|
|
}
|
| 1864 |
|
|
if (!(d = (driver *) kmalloc(sizeof(driver), GFP_KERNEL))) {
|
| 1865 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc driver-struct\n");
|
| 1866 |
|
|
return 0;
|
| 1867 |
|
|
}
|
| 1868 |
|
|
memset((char *) d, 0, sizeof(driver));
|
| 1869 |
|
|
if (!(d->rcverr = (int *) kmalloc(sizeof(int) * n, GFP_KERNEL))) {
|
| 1870 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc rcverr\n");
|
| 1871 |
|
|
kfree(d);
|
| 1872 |
|
|
return 0;
|
| 1873 |
|
|
}
|
| 1874 |
|
|
memset((char *) d->rcverr, 0, sizeof(int) * n);
|
| 1875 |
|
|
if (!(d->rcvcount = (int *) kmalloc(sizeof(int) * n, GFP_KERNEL))) {
|
| 1876 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc rcvcount\n");
|
| 1877 |
|
|
kfree(d->rcverr);
|
| 1878 |
|
|
kfree(d);
|
| 1879 |
|
|
return 0;
|
| 1880 |
|
|
}
|
| 1881 |
|
|
memset((char *) d->rcvcount, 0, sizeof(int) * n);
|
| 1882 |
|
|
if (!(d->rpqueue =
|
| 1883 |
|
|
(struct sk_buff_head *) kmalloc(sizeof(struct sk_buff_head) * n, GFP_KERNEL))) {
|
| 1884 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc rpqueue\n");
|
| 1885 |
|
|
kfree(d->rcvcount);
|
| 1886 |
|
|
kfree(d->rcverr);
|
| 1887 |
|
|
kfree(d);
|
| 1888 |
|
|
return 0;
|
| 1889 |
|
|
}
|
| 1890 |
|
|
for (j = 0; j < n; j++) {
|
| 1891 |
|
|
skb_queue_head_init(&d->rpqueue[j]);
|
| 1892 |
|
|
}
|
| 1893 |
|
|
if (!(d->rcv_waitq = (struct wait_queue **)
|
| 1894 |
|
|
kmalloc(sizeof(struct wait_queue *) * n, GFP_KERNEL))) {
|
| 1895 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc rcv_waitq\n");
|
| 1896 |
|
|
kfree(d->rpqueue);
|
| 1897 |
|
|
kfree(d->rcvcount);
|
| 1898 |
|
|
kfree(d->rcverr);
|
| 1899 |
|
|
kfree(d);
|
| 1900 |
|
|
return 0;
|
| 1901 |
|
|
}
|
| 1902 |
|
|
memset((char *) d->rcv_waitq, 0, sizeof(struct wait_queue *) * n);
|
| 1903 |
|
|
if (!(d->snd_waitq = (struct wait_queue **)
|
| 1904 |
|
|
kmalloc(sizeof(struct wait_queue *) * n, GFP_KERNEL))) {
|
| 1905 |
|
|
printk(KERN_WARNING "register_isdn: Could not alloc snd_waitq\n");
|
| 1906 |
|
|
kfree(d->rcv_waitq);
|
| 1907 |
|
|
kfree(d->rpqueue);
|
| 1908 |
|
|
kfree(d->rcvcount);
|
| 1909 |
|
|
kfree(d->rcverr);
|
| 1910 |
|
|
kfree(d);
|
| 1911 |
|
|
return 0;
|
| 1912 |
|
|
}
|
| 1913 |
|
|
memset((char *) d->snd_waitq, 0, sizeof(struct wait_queue *) * n);
|
| 1914 |
|
|
d->channels = n;
|
| 1915 |
|
|
d->maxbufsize = i->maxbufsize;
|
| 1916 |
|
|
d->pktcount = 0;
|
| 1917 |
|
|
d->stavail = 0;
|
| 1918 |
|
|
d->flags = DRV_FLAG_LOADED;
|
| 1919 |
|
|
d->online = 0;
|
| 1920 |
|
|
d->interface = i;
|
| 1921 |
|
|
for (drvidx = 0; drvidx < ISDN_MAX_DRIVERS; drvidx++)
|
| 1922 |
|
|
if (!dev->drv[drvidx])
|
| 1923 |
|
|
break;
|
| 1924 |
|
|
i->channels = drvidx;
|
| 1925 |
|
|
|
| 1926 |
|
|
i->rcvcallb_skb = isdn_receive_skb_callback;
|
| 1927 |
|
|
i->rcvcallb = isdn_receive_callback;
|
| 1928 |
|
|
i->statcallb = isdn_status_callback;
|
| 1929 |
|
|
if (!strlen(i->id))
|
| 1930 |
|
|
sprintf(i->id, "line%d", drvidx);
|
| 1931 |
|
|
save_flags(flags);
|
| 1932 |
|
|
cli();
|
| 1933 |
|
|
for (j = 0; j < drvidx; j++)
|
| 1934 |
|
|
if (!strcmp(i->id, dev->drvid[j]))
|
| 1935 |
|
|
sprintf(i->id, "line%d", drvidx);
|
| 1936 |
|
|
for (j = 0; j < n; j++)
|
| 1937 |
|
|
for (k = 0; k < ISDN_MAX_CHANNELS; k++)
|
| 1938 |
|
|
if (dev->chanmap[k] < 0) {
|
| 1939 |
|
|
dev->chanmap[k] = j;
|
| 1940 |
|
|
dev->drvmap[k] = drvidx;
|
| 1941 |
|
|
break;
|
| 1942 |
|
|
}
|
| 1943 |
|
|
dev->drv[drvidx] = d;
|
| 1944 |
|
|
dev->channels += n;
|
| 1945 |
|
|
strcpy(dev->drvid[drvidx], i->id);
|
| 1946 |
|
|
isdn_info_update();
|
| 1947 |
|
|
dev->drivers++;
|
| 1948 |
|
|
restore_flags(flags);
|
| 1949 |
|
|
return 1;
|
| 1950 |
|
|
}
|
| 1951 |
|
|
|
| 1952 |
|
|
/*
|
| 1953 |
|
|
*****************************************************************************
|
| 1954 |
|
|
* And now the modules code.
|
| 1955 |
|
|
*****************************************************************************
|
| 1956 |
|
|
*/
|
| 1957 |
|
|
|
| 1958 |
|
|
extern int printk(const char *fmt,...);
|
| 1959 |
|
|
|
| 1960 |
|
|
#ifdef MODULE
|
| 1961 |
|
|
#define isdn_init init_module
|
| 1962 |
|
|
#endif
|
| 1963 |
|
|
|
| 1964 |
|
|
static char *
|
| 1965 |
|
|
isdn_getrev(const char *revision)
|
| 1966 |
|
|
{
|
| 1967 |
|
|
char *rev;
|
| 1968 |
|
|
char *p;
|
| 1969 |
|
|
|
| 1970 |
|
|
if ((p = strchr(revision, ':'))) {
|
| 1971 |
|
|
rev = p + 2;
|
| 1972 |
|
|
p = strchr(rev, '$');
|
| 1973 |
|
|
*--p = 0;
|
| 1974 |
|
|
} else
|
| 1975 |
|
|
rev = "???";
|
| 1976 |
|
|
return rev;
|
| 1977 |
|
|
}
|
| 1978 |
|
|
|
| 1979 |
|
|
/*
|
| 1980 |
|
|
* Allocate and initialize all data, register modem-devices
|
| 1981 |
|
|
*/
|
| 1982 |
|
|
int
|
| 1983 |
|
|
isdn_init(void)
|
| 1984 |
|
|
{
|
| 1985 |
|
|
int i;
|
| 1986 |
|
|
char irev[50];
|
| 1987 |
|
|
char trev[50];
|
| 1988 |
|
|
char nrev[50];
|
| 1989 |
|
|
char prev[50];
|
| 1990 |
|
|
char arev[50];
|
| 1991 |
|
|
|
| 1992 |
|
|
sti();
|
| 1993 |
|
|
if (!(dev = (isdn_dev *) kmalloc(sizeof(isdn_dev), GFP_KERNEL))) {
|
| 1994 |
|
|
printk(KERN_WARNING "isdn: Could not allocate device-struct.\n");
|
| 1995 |
|
|
return -EIO;
|
| 1996 |
|
|
}
|
| 1997 |
|
|
memset((char *) dev, 0, sizeof(isdn_dev));
|
| 1998 |
|
|
init_timer(&dev->timer);
|
| 1999 |
|
|
dev->timer.function = isdn_timer_funct;
|
| 2000 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 2001 |
|
|
dev->drvmap[i] = -1;
|
| 2002 |
|
|
dev->chanmap[i] = -1;
|
| 2003 |
|
|
dev->m_idx[i] = -1;
|
| 2004 |
|
|
strcpy(dev->num[i], "???");
|
| 2005 |
|
|
}
|
| 2006 |
|
|
if (register_chrdev(ISDN_MAJOR, "isdn", &isdn_fops)) {
|
| 2007 |
|
|
printk(KERN_WARNING "isdn: Could not register control devices\n");
|
| 2008 |
|
|
kfree(dev);
|
| 2009 |
|
|
return -EIO;
|
| 2010 |
|
|
}
|
| 2011 |
|
|
if ((i = isdn_tty_modem_init()) < 0) {
|
| 2012 |
|
|
printk(KERN_WARNING "isdn: Could not register tty devices\n");
|
| 2013 |
|
|
if (i == -3)
|
| 2014 |
|
|
tty_unregister_driver(&dev->mdm.cua_modem);
|
| 2015 |
|
|
if (i <= -2)
|
| 2016 |
|
|
tty_unregister_driver(&dev->mdm.tty_modem);
|
| 2017 |
|
|
kfree(dev);
|
| 2018 |
|
|
unregister_chrdev(ISDN_MAJOR, "isdn");
|
| 2019 |
|
|
return -EIO;
|
| 2020 |
|
|
}
|
| 2021 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2022 |
|
|
if (isdn_ppp_init() < 0) {
|
| 2023 |
|
|
printk(KERN_WARNING "isdn: Could not create PPP-device-structs\n");
|
| 2024 |
|
|
tty_unregister_driver(&dev->mdm.tty_modem);
|
| 2025 |
|
|
tty_unregister_driver(&dev->mdm.cua_modem);
|
| 2026 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
|
| 2027 |
|
|
kfree(dev->mdm.info[i].xmit_buf - 4);
|
| 2028 |
|
|
unregister_chrdev(ISDN_MAJOR, "isdn");
|
| 2029 |
|
|
kfree(dev);
|
| 2030 |
|
|
return -EIO;
|
| 2031 |
|
|
}
|
| 2032 |
|
|
#endif /* CONFIG_ISDN_PPP */
|
| 2033 |
|
|
|
| 2034 |
|
|
isdn_export_syms();
|
| 2035 |
|
|
|
| 2036 |
|
|
strcpy(irev, isdn_revision);
|
| 2037 |
|
|
strcpy(trev, isdn_tty_revision);
|
| 2038 |
|
|
strcpy(nrev, isdn_net_revision);
|
| 2039 |
|
|
strcpy(prev, isdn_ppp_revision);
|
| 2040 |
|
|
strcpy(arev, isdn_audio_revision);
|
| 2041 |
|
|
printk(KERN_NOTICE "ISDN subsystem Rev: %s/", isdn_getrev(irev));
|
| 2042 |
|
|
printk("%s/", isdn_getrev(trev));
|
| 2043 |
|
|
printk("%s/", isdn_getrev(nrev));
|
| 2044 |
|
|
printk("%s/", isdn_getrev(prev));
|
| 2045 |
|
|
printk("%s", isdn_getrev(arev));
|
| 2046 |
|
|
|
| 2047 |
|
|
#ifdef MODULE
|
| 2048 |
|
|
printk(" loaded\n");
|
| 2049 |
|
|
#else
|
| 2050 |
|
|
printk("\n");
|
| 2051 |
|
|
isdn_cards_init();
|
| 2052 |
|
|
#endif
|
| 2053 |
|
|
isdn_info_update();
|
| 2054 |
|
|
return 0;
|
| 2055 |
|
|
}
|
| 2056 |
|
|
|
| 2057 |
|
|
#ifdef MODULE
|
| 2058 |
|
|
/*
|
| 2059 |
|
|
* Unload module
|
| 2060 |
|
|
*/
|
| 2061 |
|
|
void
|
| 2062 |
|
|
cleanup_module(void)
|
| 2063 |
|
|
{
|
| 2064 |
|
|
int flags;
|
| 2065 |
|
|
int i;
|
| 2066 |
|
|
|
| 2067 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2068 |
|
|
isdn_ppp_cleanup();
|
| 2069 |
|
|
#endif
|
| 2070 |
|
|
save_flags(flags);
|
| 2071 |
|
|
cli();
|
| 2072 |
|
|
if (isdn_net_rmall() < 0) {
|
| 2073 |
|
|
printk(KERN_WARNING "isdn: net-device busy, remove cancelled\n");
|
| 2074 |
|
|
restore_flags(flags);
|
| 2075 |
|
|
return;
|
| 2076 |
|
|
}
|
| 2077 |
|
|
if (tty_unregister_driver(&dev->mdm.tty_modem)) {
|
| 2078 |
|
|
printk(KERN_WARNING "isdn: ttyI-device busy, remove cancelled\n");
|
| 2079 |
|
|
restore_flags(flags);
|
| 2080 |
|
|
return;
|
| 2081 |
|
|
}
|
| 2082 |
|
|
if (tty_unregister_driver(&dev->mdm.cua_modem)) {
|
| 2083 |
|
|
printk(KERN_WARNING "isdn: cui-device busy, remove cancelled\n");
|
| 2084 |
|
|
restore_flags(flags);
|
| 2085 |
|
|
return;
|
| 2086 |
|
|
}
|
| 2087 |
|
|
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
|
| 2088 |
|
|
isdn_tty_cleanup_xmit(&dev->mdm.info[i]);
|
| 2089 |
|
|
kfree(dev->mdm.info[i].xmit_buf - 4);
|
| 2090 |
|
|
}
|
| 2091 |
|
|
if (unregister_chrdev(ISDN_MAJOR, "isdn") != 0) {
|
| 2092 |
|
|
printk(KERN_WARNING "isdn: controldevice busy, remove cancelled\n");
|
| 2093 |
|
|
} else {
|
| 2094 |
|
|
del_timer(&dev->timer);
|
| 2095 |
|
|
kfree(dev);
|
| 2096 |
|
|
printk(KERN_NOTICE "ISDN-subsystem unloaded\n");
|
| 2097 |
|
|
}
|
| 2098 |
|
|
restore_flags(flags);
|
| 2099 |
|
|
}
|
| 2100 |
|
|
#endif
|
