isdn.h
/* isdn.h.shtml,v 1.1.1.1 2002/08/19 05:50:13 fritz Exp
*
* Main header for the Linux ISDN subsystem (linklevel).
*
* Copyright 1994,95,96 by Fritz Elfert (fritz@wuemaus.franken.de)
* Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
* Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* isdn.h.shtml,v
* Revision 1.1.1.1 2002/08/19 05:50:13 fritz
* - initial import
*
* Revision 1.55 1998/06/26 15:13:17 fritz
* Added handling of STAT_ICALL with incomplete CPN.
* Added AT&L for ttyI emulator.
* Added more locking stuff in tty_write.
*
* Revision 1.54 1998/06/18 23:32:01 fritz
* Replaced cli()/restore_flags() in isdn_tty_write() by locking.
* Removed direct-senddown feature in isdn_tty_write because it will
* never succeed with locking and is useless anyway.
*
* Revision 1.53 1998/06/17 19:51:51 he
* merged with 2.1.10[34] (cosmetics and udelay() -> mdelay())
* brute force fix to avoid Ugh's in isdn_tty_write()
* cleaned up some dead code
*
* Revision 1.52 1998/06/12 11:42:18 detabc
* cleanup abc
*
* Revision 1.51 1998/06/02 12:10:30 detabc
* wegen einer einstweiliger verfuegung gegen DW ist zur zeit
* die abc-extension bis zur klaerung der rechtslage nicht verfuegbar
*
* Revision 1.50 1998/05/05 23:11:51 detabc
* add Item to stop icmp-unreach (max. 6 times of dialwait delay)
*
* Revision 1.49 1998/05/03 17:45:00 detabc
* Add Item to send icmp-host-unreach to all packets
*
* Revision 1.48 1998/04/26 19:58:14 detabc
* include the new abc-extension-items from 2.0.xx kernels
* remove some unused code
*
* Revision 1.47 1998/04/21 18:00:25 detabc
* Add items for secure-callback (abc-extension only)
*
* Revision 1.46 1998/04/14 16:28:59 he
* Fixed user space access with interrupts off and remaining
* copy_{to,from}_user() -> -EFAULT return codes
*
* Revision 1.45 1998/03/24 16:33:12 hipp
* More CCP changes. BSD compression now "works" on a local loopback link.
* Moved some isdn_ppp stuff from isdn.h to isdn_ppp.h
*
* Revision 1.44 1998/03/22 18:50:56 hipp
* Added BSD Compression for syncPPP .. UNTESTED at the moment
*
* Revision 1.43 1998/03/09 17:46:44 he
* merged in 2.1.89 changes
*
* Revision 1.42 1998/03/08 13:53:46 detabc
* add ABC-variables in structur isdn_devt
*
* Revision 1.41 1998/03/08 13:14:37 detabc
* abc-extension support for kernels > 2.1.x
* first try (sorry experimental)
*
* Revision 1.40 1998/03/08 01:08:29 fritz
* Increased NET_DV because of TIMRU
*
* Revision 1.39 1998/03/07 22:42:49 fritz
* Starting generic module support (Nothing usable yet).
*
* Revision 1.38 1998/03/07 18:21:29 cal
* Dynamic Timeout-Rule-Handling vs. 971110 included
*
* Revision 1.37 1998/02/22 19:45:24 fritz
* Some changes regarding V.110
*
* Revision 1.36 1998/02/20 17:35:55 fritz
* Added V.110 stuff.
*
* Revision 1.35 1998/01/31 22:14:14 keil
* changes for 2.1.82
*
* Revision 1.34 1997/10/09 21:28:11 fritz
* New HL<->LL interface:
* New BSENT callback with nr. of bytes included.
* Sending without ACK.
* New L1 error status (not yet in use).
* Cleaned up obsolete structures.
* Implemented Cisco-SLARP.
* Changed local net-interface data to be dynamically allocated.
* Removed old 2.0 compatibility stuff.
*
* Revision 1.33 1997/08/21 14:44:22 fritz
* Moved triggercps to end of struct for backwards-compatibility.
*
* Revision 1.32 1997/08/21 09:49:46 fritz
* Increased NET_DV
*
* Revision 1.31 1997/06/22 11:57:07 fritz
* Added ability to adjust slave triggerlevel.
*
* Revision 1.30 1997/06/17 13:07:23 hipp
* compression changes , MP changes
*
* Revision 1.29 1997/05/27 15:18:02 fritz
* Added changes for recent 2.1.x kernels:
* changed return type of isdn_close
* queue_task_* -> queue_task
* clear/set_bit -> test_and_... where apropriate.
* changed type of hard_header_cache parameter.
*
* Revision 1.28 1997/03/07 01:33:01 fritz
* Added proper ifdef's for CONFIG_ISDN_AUDIO
*
* Revision 1.27 1997/03/05 21:11:49 fritz
* Minor fixes.
*
* Revision 1.26 1997/02/28 02:37:53 fritz
* Added some comments.
*
* Revision 1.25 1997/02/23 16:54:23 hipp
* some initial changes for future PPP compresion
*
* Revision 1.24 1997/02/18 09:42:45 fritz
* Bugfix: Increased ISDN_MODEM_ANZREG.
* Increased TTY_DV.
*
* Revision 1.23 1997/02/10 22:07:13 fritz
* Added 2 modem registers for numbering plan and screening info.
*
* Revision 1.22 1997/02/03 23:42:08 fritz
* Added ISDN_TIMER_RINGING
* Misc. changes for Kernel 2.1.X compatibility
*
* Revision 1.21 1997/01/17 01:19:10 fritz
* Applied chargeint patch.
*
* Revision 1.20 1997/01/17 00:41:19 fritz
* Increased TTY_DV.
*
* Revision 1.19 1997/01/14 01:41:07 fritz
* Added ATI2 related variables.
* Added variables for audio support in skbuffs.
*
* Revision 1.18 1996/11/06 17:37:50 keil
* more changes for 2.1.X
*
* Revision 1.17 1996/09/07 12:53:57 hipp
* moved a few isdn_ppp.c specific defines to drives/isdn/isdn_ppp.h
*
* Revision 1.16 1996/08/12 16:20:56 hipp
* renamed ppp_minor to ppp_slot
*
* Revision 1.15 1996/06/15 14:56:57 fritz
* Added version signatures for data structures used
* by userlevel programs.
*
* Revision 1.14 1996/06/06 21:24:23 fritz
* Started adding support for suspend/resume.
*
* Revision 1.13 1996/06/05 02:18:20 fritz
* Added DTMF decoding stuff.
*
* Revision 1.12 1996/06/03 19:55:08 fritz
* Fixed typos.
*
* Revision 1.11 1996/05/31 01:37:47 fritz
* Minor changes, due to changes in isdn_tty.c
*
* Revision 1.10 1996/05/18 01:37:18 fritz
* Added spelling corrections and some minor changes
* to stay in sync with kernel.
*
* Revision 1.9 1996/05/17 03:58:20 fritz
* Added flags for DLE handling.
*
* Revision 1.8 1996/05/11 21:49:55 fritz
* Removed queue management variables.
* Changed queue management to use sk_buffs.
*
* Revision 1.7 1996/05/07 09:10:06 fritz
* Reorganized tty-related structs.
*
* Revision 1.6 1996/05/06 11:38:27 hipp
* minor change in ippp struct
*
* Revision 1.5 1996/04/30 11:03:16 fritz
* Added Michael's ippp-bind patch.
*
* Revision 1.4 1996/04/29 23:00:02 fritz
* Added variables for voice-support.
*
* Revision 1.3 1996/04/20 16:54:58 fritz
* Increased maximum number of channels.
* Added some flags for isdn_net to handle callback more reliable.
* Fixed delay-definitions to be more accurate.
* Misc. typos
*
* Revision 1.2 1996/02/11 02:10:02 fritz
* Changed IOCTL-names
* Added rx_netdev, st_netdev, first_skb, org_hcb, and org_hcu to
* Netdevice-local struct.
*
* Revision 1.1 1996/01/10 20:55:07 fritz
* Initial revision
*
*/
#ifndef isdn_h
#define isdn_h
#include <linux/ioctl.h>
#define ISDN_TTY_MAJOR 43
#define ISDN_TTYAUX_MAJOR 44
#define ISDN_MAJOR 45
/* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
* physical Channel-Mapping, so they MUST NOT be changed without changing
* the correspondent code in isdn.c
*/
#define ISDN_MAX_DRIVERS 32
#define ISDN_MAX_CHANNELS 64
#define ISDN_MINOR_B 0
#define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
#define ISDN_MINOR_CTRL ISDN_MAX_CHANNELS
#define ISDN_MINOR_CTRLMAX (2*ISDN_MAX_CHANNELS-1)
#define ISDN_MINOR_PPP (2*ISDN_MAX_CHANNELS)
#define ISDN_MINOR_PPPMAX (3*ISDN_MAX_CHANNELS-1)
#define ISDN_MINOR_STATUS 255
/* New ioctl-codes */
#define IIOCNETAIF _IO('I',1)
#define IIOCNETDIF _IO('I',2)
#define IIOCNETSCF _IO('I',3)
#define IIOCNETGCF _IO('I',4)
#define IIOCNETANM _IO('I',5)
#define IIOCNETDNM _IO('I',6)
#define IIOCNETGNM _IO('I',7)
#define IIOCGETSET _IO('I',8)
#define IIOCSETSET _IO('I',9)
#define IIOCSETVER _IO('I',10)
#define IIOCNETHUP _IO('I',11)
#define IIOCSETGST _IO('I',12)
#define IIOCSETBRJ _IO('I',13)
#define IIOCSIGPRF _IO('I',14)
#define IIOCGETPRF _IO('I',15)
#define IIOCSETPRF _IO('I',16)
#define IIOCGETMAP _IO('I',17)
#define IIOCSETMAP _IO('I',18)
#define IIOCNETASL _IO('I',19)
#define IIOCNETDIL _IO('I',20)
#define IIOCGETCPS _IO('I',21)
#define IIOCGETDVR _IO('I',22)
#define IIOCNETARU _IO('I',23)
#define IIOCNETDRU _IO('I',24)
#define IIOCNETGRU _IO('I',25)
#define IIOCNETBUD _IO('I',26)
#define IIOCNETALN _IO('I',32)
#define IIOCNETDLN _IO('I',33)
#define IIOCDBGVAR _IO('I',127)
#define IIOCDRVCTL _IO('I',128)
/* Packet encapsulations for net-interfaces */
#define ISDN_NET_ENCAP_ETHER 0
#define ISDN_NET_ENCAP_RAWIP 1
#define ISDN_NET_ENCAP_IPTYP 2
#define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */
#define ISDN_NET_ENCAP_SYNCPPP 4
#define ISDN_NET_ENCAP_UIHDLC 5
#define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */
#define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/
#define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE
/* Facility which currently uses an ISDN-channel */
#define ISDN_USAGE_NONE 0
#define ISDN_USAGE_RAW 1
#define ISDN_USAGE_MODEM 2
#define ISDN_USAGE_NET 3
#define ISDN_USAGE_VOICE 4
#define ISDN_USAGE_FAX 5
#define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
#define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
#define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
#define ISDN_MODEM_ANZREG 23 /* Number of Modem-Registers */
#define ISDN_MSNLEN 20
#define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */
typedef struct {
char drvid[25];
unsigned long arg;
} isdn_ioctl_struct;
typedef struct {
unsigned long isdndev;
unsigned long atmodem[ISDN_MAX_CHANNELS];
unsigned long info[ISDN_MAX_CHANNELS];
} debugvar_addr;
typedef struct {
char name[10];
char phone[ISDN_MSNLEN];
int outgoing;
} isdn_net_ioctl_phone;
#define NET_DV 0x05 /* Data version for net_cfg */
#define TTY_DV 0x05 /* Data version for iprofd etc. */
#define INF_DV 0x01 /* Data version for /dev/isdninfo */
typedef struct {
char name[10]; /* Name of interface */
char master[10]; /* Name of Master for Bundling */
char slave[10]; /* Name of Slave for Bundling */
char eaz[256]; /* EAZ/MSN */
char drvid[25]; /* DriverId for Bindings */
int onhtime; /* Hangup-Timeout */
int charge; /* Charge-Units */
int l2_proto; /* Layer-2 protocol */
int l3_proto; /* Layer-3 protocol */
int p_encap; /* Encapsulation */
int exclusive; /* Channel, if bound exclusive */
int dialmax; /* Dial Retry-Counter */
int slavedelay; /* Delay until slave starts up */
int cbdelay; /* Delay before Callback */
int chargehup; /* Flag: Charge-Hangup */
int ihup; /* Flag: Hangup-Timeout on incoming line */
int secure; /* Flag: Secure */
int callback; /* Flag: Callback */
int cbhup; /* Flag: Reject Call before Callback */
int pppbind; /* ippp device for bindings */
int chargeint; /* Use fixed charge interval length */
int triggercps; /* BogoCPS needed for triggering slave */
int dialtimeout; /* Dial-Timeout */
int dialwait; /* Time to wait after failed dial */
int stopped; /* Flag: Stopped */
} isdn_net_ioctl_cfg;
#ifdef __KERNEL__
#ifndef STANDALONE
#include <linux/config.h>
#endif
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/major.h>
#include <asm/segment.h>
#include <asm/io.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/malloc.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/serial_reg.h>
#include <linux/fcntl.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ip.h>
#include <linux/in.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/tcp.h>
#ifdef CONFIG_ISDN_PPP
#ifdef CONFIG_ISDN_PPP_VJ
# include <net/slhc_vj.h>
#endif
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#include <linux/if_pppvar.h>
#include <linux/isdn_ppp.h>
#endif
#ifdef CONFIG_ISDN_X25
# include <linux/concap.h>
#endif
#include <linux/isdnif.h>
#define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
/* Until now unused */
#define ISDN_SERVICE_VOICE 1
#define ISDN_SERVICE_AB 1<<1
#define ISDN_SERVICE_X21 1<<2
#define ISDN_SERVICE_G4 1<<3
#define ISDN_SERVICE_BTX 1<<4
#define ISDN_SERVICE_DFUE 1<<5
#define ISDN_SERVICE_X25 1<<6
#define ISDN_SERVICE_TTX 1<<7
#define ISDN_SERVICE_MIXED 1<<8
#define ISDN_SERVICE_FW 1<<9
#define ISDN_SERVICE_GTEL 1<<10
#define ISDN_SERVICE_BTXN 1<<11
#define ISDN_SERVICE_BTEL 1<<12
/* Macros checking plain usage */
#define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
#define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
#define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
#define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)
#define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
#define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
#define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \
((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) )
/* Timer-delays and scheduling-flags */
#define ISDN_TIMER_RES 3 /* Main Timer-Resolution */
#define ISDN_TIMER_02SEC (HZ/(ISDN_TIMER_RES+1)/5) /* Slow-Timer1 .2 sec */
#define ISDN_TIMER_1SEC (HZ/(ISDN_TIMER_RES+1)) /* Slow-Timer2 1 sec */
#define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */
#define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */
#define ISDN_TIMER_MODEMREAD 1
#define ISDN_TIMER_MODEMPLUS 2
#define ISDN_TIMER_MODEMRING 4
#define ISDN_TIMER_MODEMXMIT 8
#define ISDN_TIMER_NETDIAL 16
#define ISDN_TIMER_NETHANGUP 32
#define ISDN_TIMER_IPPP 64
#define ISDN_TIMER_KEEPALIVE 128 /* Cisco-Keepalive */
#define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
ISDN_TIMER_MODEMXMIT)
#define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
ISDN_TIMER_NETDIAL | ISDN_TIMER_KEEPALIVE)
/* Timeout-Values for isdn_net_dial() */
#define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
#define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
/* GLOBAL_FLAGS */
#define ISDN_GLOBAL_STOPPED 1
/*=================== Start of ip-over-ISDN stuff =========================*/
/* Feature- and status-flags for a net-interface */
#define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
#define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
#define ISDN_NET_CALLBACK 0x04 /* activate callback */
#define ISDN_NET_CBHUP 0x08 /* hangup before callback */
#define ISDN_NET_CBOUT 0x10 /* remote machine does callback */
#if 0
/* Unused??? */
#define ISDN_NET_CLONE 0x08 /* clone a tmp interface when called */
#define ISDN_NET_TMP 0x10 /* tmp interface until getting an IP */
#define ISDN_NET_DYNAMIC 0x20 /* this link is dynamically allocated */
#endif
#define ISDN_NET_STOPPED 0x40 /* this interface is stopped */
#define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
/* Phone-list-element */
typedef struct {
void *next;
char num[ISDN_MSNLEN];
} isdn_net_phone;
#ifdef CONFIG_ISDN_TIMEOUT_RULES
#include <linux/isdn_timru.h>
struct isdn_timeout_rules {
isdn_timeout_rule *timru[ISDN_TIMRU_NUM_CHECK][ISDN_TIMRU_NUM_PROTFAM];
int defaults[ISDN_TIMRU_NUM_CHECK];
};
#endif
#ifdef CONFIG_ISDN_BUDGET
#include <linux/isdn_budget.h>
typedef struct {
int amount, /* usable amount */
used, /* used so far */
period, /* length of period */
notified; /* flag: notified user about low budget */
time_t period_started, /* when did the current period start? */
last_check; /* last time checked */
} isdn_budget;
#endif
/*
Principles when extending structures for generic encapsulation protocol
("concap") support:
- Stuff which is hardware specific (here i4l-specific) goes in
the netdev -> local structure (here: isdn_net_local)
- Stuff which is encapsulation protocol specific goes in the structure
which holds the linux device structure (here: isdn_net_device)
*/
/* Local interface-data */
typedef struct isdn_net_local_s {
ulong magic;
char name[10]; /* Name of device */
struct enet_statistics stats; /* Ethernet Statistics */
int isdn_device; /* Index to isdn-device */
int isdn_channel; /* Index to isdn-channel */
int ppp_slot; /* PPPD device slot number */
int pre_device; /* Preselected isdn-device */
int pre_channel; /* Preselected isdn-channel */
int exclusive; /* If non-zero idx to reserved chan.*/
int flags; /* Connection-flags */
int dialretry; /* Counter for Dialout-retries */
int dialmax; /* Max. Number of Dial-retries */
int cbdelay; /* Delay before Callback starts */
int dtimer; /* Timeout-counter for dialing */
char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
u_char cbhup; /* Flag: Reject Call before Callback*/
u_char dialstate; /* State for dialing */
u_char p_encap; /* Packet encapsulation */
/* 0 = Ethernet over ISDN */
/* 1 = RAW-IP */
/* 2 = IP with type field */
u_char l2_proto; /* Layer-2-protocol */
/* See ISDN_PROTO_L2..-constants in */
/* isdnif.h */
/* 0 = X75/LAPB with I-Frames */
/* 1 = X75/LAPB with UI-Frames */
/* 2 = X75/LAPB with BUI-Frames */
/* 3 = HDLC */
u_char l3_proto; /* Layer-3-protocol */
/* See ISDN_PROTO_L3..-constants in */
/* isdnif.h */
/* 0 = Transparent */
int huptimer; /* Timeout-counter for auto-hangup */
int charge; /* Counter for charging units */
int chargetime; /* Timer for Charging info */
int hupflags; /* Flags for charge-unit-hangup: */
/* bit0: chargeint is invalid */
/* bit1: Getting charge-interval */
/* bit2: Do charge-unit-hangup */
/* bit3: Do hangup even on incoming */
int outgoing; /* Flag: outgoing call */
int onhtime; /* Time to keep link up */
int chargeint; /* Interval between charge-infos */
int onum; /* Flag: at least 1 outgoing number */
int cps; /* current speed of this interface */
int transcount; /* byte-counter for cps-calculation */
int sqfull; /* Flag: netdev-queue overloaded */
ulong sqfull_stamp; /* Start-Time of overload */
ulong slavedelay; /* Dynamic bundling delaytime */
int triggercps; /* BogoCPS needed for trigger slave */
struct device *srobin; /* Ptr to Master device for slaves */
isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
/* phone[0] = Incoming Numbers */
/* phone[1] = Outgoing Numbers */
isdn_net_phone *dial; /* Pointer to dialed number */
struct device *master; /* Ptr to Master device for slaves */
struct device *slave; /* Ptr to Slave device for masters */
struct isdn_net_local_s *next; /* Ptr to next link in bundle */
struct isdn_net_local_s *last; /* Ptr to last link in bundle */
struct isdn_net_dev_s *netdev; /* Ptr to netdev */
struct sk_buff *first_skb; /* Ptr to skb that triggers dialing */
struct sk_buff *sav_skb; /* Ptr to skb, rejected by LL-driver*/
/* Ptr to orig. hard_header_cache */
int (*org_hhc)(
struct neighbour *neigh,
struct hh_cache *hh);
/* Ptr to orig. header_cache_update */
void (*org_hcu)(struct hh_cache *,
struct device *,
unsigned char *);
int pppbind; /* ippp device for bindings */
int dialtimeout; /* How long shall we try on dialing? (jiffies) */
int dialwait; /* How long shall we wait after failed attempt? (jiffies) */
ulong dialstarted; /* jiffies of first dialing-attempt */
ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */
int huptimeout; /* How long will the connection be up? (seconds) */
#ifdef CONFIG_ISDN_TIMEOUT_RULES
struct isdn_timeout_rules *timeout_rules;
#endif
#ifdef CONFIG_ISDN_BUDGET
isdn_budget budget [ISDN_BUDGET_NUM_BUDGET];
#endif
#ifdef CONFIG_ISDN_X25
struct concap_device_ops *dops; /* callbacks used by encapsulator */
#endif
int cisco_loop; /* Loop counter for Cisco-SLARP */
ulong cisco_myseq; /* Local keepalive seq. for Cisco */
ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */
} isdn_net_local;
/* the interface itself */
typedef struct isdn_net_dev_s {
isdn_net_local *local;
isdn_net_local *queue;
void *next; /* Pointer to next isdn-interface */
struct device dev; /* interface to upper levels */
#ifdef CONFIG_ISDN_PPP
struct mpqueue *mp_last;
struct ippp_bundle ib;
#endif
#ifdef CONFIG_ISDN_X25
struct concap_proto *cprot; /* connection oriented encapsulation protocol */
#endif
} isdn_net_dev;
/*===================== End of ip-over-ISDN stuff ===========================*/
/*======================= Start of ISDN-tty stuff ===========================*/
#define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
#define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
#define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
#define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
#define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
#define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
#define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
#define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
#define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
#define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
#define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
#define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
#define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */
#define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */
#define ISDN_SERIAL_TYPE_NORMAL 1
#define ISDN_SERIAL_TYPE_CALLOUT 2
#ifdef CONFIG_ISDN_AUDIO
/* For using sk_buffs with audio we need some private variables
* within each sk_buff. For this purpose, we declare a struct here,
* and put it always at skb->head. A few macros help accessing the
* variables. Of course, we need to check skb_headroom prior to
* any access.
*/
typedef struct isdn_audio_skb {
unsigned short dle_count;
unsigned char lock;
} isdn_audio_skb;
#define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_skb*)skb->head)->dle_count)
#define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_skb*)skb->head)->lock)
#endif
/* Private data of AT-command-interpreter */
typedef struct atemu {
u_char profile[ISDN_MODEM_ANZREG]; /* Modem-Regs. Profile 0 */
u_char mdmreg[ISDN_MODEM_ANZREG]; /* Modem-Registers */
char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
char msn[ISDN_MSNLEN]; /* EAZ/MSN */
char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */
char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */
char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */
#ifdef CONFIG_ISDN_AUDIO
u_char vpar[10]; /* Voice-parameters */
int lastDLE; /* Flag for voice-coding: DLE seen */
#endif
int mdmcmdl; /* Length of Modem-Commandbuffer */
int pluscount; /* Counter for +++ sequence */
int lastplus; /* Timestamp of last + */
char mdmcmd[255]; /* Modem-Commandbuffer */
unsigned int charge; /* Charge units of current connection */
} atemu;
/* Private data (similar to async_struct in <linux/serial.h>) */
typedef struct modem_info {
int magic;
int flags; /* defined in tty.h */
int x_char; /* xon/xoff character */
int mcr; /* Modem control register */
int msr; /* Modem status register */
int lsr; /* Line status register */
int line;
int count; /* # of fd on device */
int blocked_open; /* # of blocked opens */
long session; /* Session of opening process */
long pgrp; /* pgrp of opening process */
int online; /* 1 = B-Channel is up, drop data */
/* 2 = B-Channel is up, deliver d.*/
int dialing; /* Dial in progress */
int rcvsched; /* Receive needs schedule */
int isdn_driver; /* Index to isdn-driver */
int isdn_channel; /* Index to isdn-channel */
int drv_index; /* Index to dev->usage */
int ncarrier; /* Flag: schedule NO CARRIER */
unsigned char last_cause[8]; /* Last cause message */
unsigned char last_num[ISDN_MSNLEN];
/* Last phone-number */
unsigned char last_l2; /* Last layer-2 protocol */
unsigned char last_si; /* Last service */
unsigned char last_lhup; /* Last hangup local? */
unsigned char last_dir; /* Last direction (in or out) */
struct timer_list nc_timer; /* Timer for delayed NO CARRIER */
int send_outstanding;/* # of outstanding send-requests */
int xmit_size; /* max. # of chars in xmit_buf */
int xmit_count; /* # of chars in xmit_buf */
unsigned char *xmit_buf; /* transmit buffer */
struct sk_buff_head xmit_queue; /* transmit queue */
atomic_t xmit_lock; /* Semaphore for isdn_tty_write */
#ifdef CONFIG_ISDN_AUDIO
int vonline; /* Voice-channel status */
/* Bit 0 = recording */
/* Bit 1 = playback */
/* Bit 2 = playback, DLE-ETX seen */
struct sk_buff_head dtmf_queue; /* queue for dtmf results */
void *adpcms; /* state for adpcm decompression */
void *adpcmr; /* state for adpcm compression */
void *dtmf_state; /* state for dtmf decoder */
#endif
struct tty_struct *tty; /* Pointer to corresponding tty */
atemu emu; /* AT-emulator data */
struct termios normal_termios; /* For saving termios structs */
struct termios callout_termios;
struct wait_queue *open_wait;
struct wait_queue *close_wait;
struct semaphore write_sem;
} modem_info;
#define ISDN_MODEM_WINSIZE 8
/* Description of one ISDN-tty */
typedef struct {
int refcount; /* Number of opens */
struct tty_driver tty_modem; /* tty-device */
struct tty_driver cua_modem; /* cua-device */
struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
struct termios *modem_termios[ISDN_MAX_CHANNELS];
struct termios *modem_termios_locked[ISDN_MAX_CHANNELS];
modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
} modem;
/*======================= End of ISDN-tty stuff ============================*/
/*======================== Start of V.110 stuff ============================*/
#define V110_BUFSIZE 1024
typedef struct {
int nbytes; /* 1 Matrixbyte -> nbytes in stream */
int nbits; /* Number of used bits in streambyte */
unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */
int decodelen; /* Amount of data in decodebuf */
int SyncInit; /* Number of sync frames to send */
unsigned char *OnlineFrame; /* Precalculated V110 idle frame */
unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */
int framelen; /* Length of frames */
int skbuser; /* Number of unacked userdata skbs */
int skbidle; /* Number of unacked idle/sync skbs */
int introducer; /* Local vars for decoder */
int dbit;
unsigned char b;
int skbres; /* space to reserve in outgoing skb */
int maxsize; /* maxbufsize of lowlevel driver */
unsigned char *encodebuf; /* temporary buffer for encoding */
unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */
} isdn_v110_stream;
/*========================= End of V.110 stuff =============================*/
/*======================= Start of general stuff ===========================*/
typedef struct {
char *next;
char *private;
} infostruct;
typedef struct isdn_module {
struct isdn_module *prev;
struct isdn_module *next;
char *name;
int (*get_free_channel)(int, int, int, int, int);
int (*free_channel)(int, int, int);
int (*status_callback)(isdn_ctrl *);
int (*command)(isdn_ctrl *);
int (*receive_callback)(int, int, struct sk_buff *);
int (*writebuf_skb)(int, int, int, struct sk_buff *);
int (*net_start_xmit)(struct sk_buff *, struct device *);
int (*net_receive)(struct device *, struct sk_buff *);
int (*net_open)(struct device *);
int (*net_close)(struct device *);
int priority;
} isdn_module;
/* Description of hardware-level-driver */
typedef struct {
ulong flags; /* Flags */
int channels; /* Number of channels */
int reject_bus; /* Flag: Reject rejected call on bus*/
struct wait_queue *st_waitq; /* Wait-Queue for status-read's */
int maxbufsize; /* Maximum Buffersize supported */
unsigned long pktcount; /* Until now: unused */
int running; /* Flag: Protocolcode running */
int loaded; /* Flag: Driver loaded */
int stavail; /* Chars avail on Status-device */
isdn_if *interface; /* Interface to driver */
int *rcverr; /* Error-counters for B-Ch.-receive */
int *rcvcount; /* Byte-counters for B-Ch.-receive */
#ifdef CONFIG_ISDN_AUDIO
unsigned long DLEflag; /* Flags: Insert DLE at next read */
#endif
struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */
struct wait_queue **rcv_waitq; /* Wait-Queues for B-Channel-Reads */
struct wait_queue **snd_waitq; /* Wait-Queue for B-Channel-Send's */
char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
} driver;
/* Main driver-data */
typedef struct isdn_devt {
unsigned short flags; /* Bitmapped Flags: */
/* */
int drivers; /* Current number of drivers */
int channels; /* Current number of channels */
int net_verbose; /* Verbose-Flag */
int modempoll; /* Flag: tty-read active */
int tflags; /* Timer-Flags: */
/* see ISDN_TIMER_..defines */
int global_flags;
infostruct *infochain; /* List of open info-devs. */
struct wait_queue *info_waitq; /* Wait-Queue for isdninfo */
struct timer_list timer; /* Misc.-function Timer */
int chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel */
int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN];
/* Remote number of active ch.*/
int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
driver *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
isdn_net_dev *netdev; /* Linked list of net-if's */
char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
struct task_struct *profd; /* For iprofd */
modem mdm; /* tty-driver-data */
isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */
ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */
int v110emu[ISDN_MAX_CHANNELS];/* V.110 emulator-mode 0=none */
atomic_t v110use[ISDN_MAX_CHANNELS];/* Usage-Semaphore for stream */
isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */
struct semaphore sem; /* serialize list access*/
isdn_module *modules;
} isdn_dev;
extern isdn_dev *dev;
/* Utility-Macros */
#define MIN(a,b) ((a<b)?a:b)
#define MAX(a,b) ((a>b)?a:b)
#if (LINUX_VERSION_CODE < 0x020159) /* 2.1.89 */
#define poll_wait(f,wq,w) poll_wait((wq),(w))
#endif
#endif /* __KERNEL__ */
#endif /* isdn_h */
