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kernel-ark/include/linux/isdn.h
Alan Cox 606d099cdd [PATCH] tty: switch to ktermios 
This is the grungy swap all the occurrences in the right places patch that
goes with the updates.  At this point we have the same functionality as
before (except that sgttyb() returns speeds not zero) and are ready to
begin turning new stuff on providing nobody reports lots of bugs

If you are a tty driver author converting an out of tree driver the only
impact should be termios->ktermios name changes for the speed/property
setting functions from your upper layers.

If you are implementing your own TCGETS function before then your driver
was broken already and its about to get a whole lot more painful for you so
please fix it 8)

Also fill in c_ispeed/ospeed on init for most devices, although the current
code will do this for you anyway but I'd like eventually to lose that extra
paranoia

[akpm@osdl.org: bluetooth fix]
[mp3@de.ibm.com: sclp fix]
[mp3@de.ibm.com: warning fix for tty3270]
[hugh@veritas.com: fix tty_ioctl powerpc build]
[jdike@addtoit.com: uml: fix ->set_termios declaration]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:57 -08:00

637 lines
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/* $Id: isdn.h,v 1.125.2.3 2004/02/10 01:07:14 keil Exp $
*
* Main header for the Linux ISDN subsystem (linklevel).
*
* Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de)
* Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
* Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#ifndef __ISDN_H__
#define __ISDN_H__
#include <linux/ioctl.h>
#ifdef CONFIG_COBALT_MICRO_SERVER
/* Save memory */
#define ISDN_MAX_DRIVERS 2
#define ISDN_MAX_CHANNELS 8
#else
#define ISDN_MAX_DRIVERS 32
#define ISDN_MAX_CHANNELS 64
#endif
/* 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) /* no longer supported */
#define IIOCSETSET _IO('I',9) /* no longer supported */
#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 IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */
#define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */
#define IIOCNETALN _IO('I',32)
#define IIOCNETDLN _IO('I',33)
#define IIOCNETGPN _IO('I',34)
#define IIOCDBGVAR _IO('I',127)
#define IIOCDRVCTL _IO('I',128)
/* cisco hdlck device private ioctls */
#define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0)
#define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1)
#define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2)
#define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3)
/* 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_DISABLED 32 /* This bit is set, if channel is disabled */
#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_NUMREG 24 /* Number of Modem-Registers */
#define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */
#define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */
#define ISDN_MSNLEN 32
#define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */
#define TTY_DV 0x06 /* Data version for iprofd etc. */
#define INF_DV 0x01 /* Data version for /dev/isdninfo */
typedef struct {
char drvid[25];
unsigned long arg;
} isdn_ioctl_struct;
typedef struct {
char name[10];
char phone[ISDN_MSNLEN];
int outgoing;
} isdn_net_ioctl_phone;
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 dialmode; /* Flag: off / on / auto */
} isdn_net_ioctl_cfg;
#define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */
#define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */
#define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */
#define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */
#define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK)
#ifdef __KERNEL__
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/major.h>
#include <asm/io.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/slab.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>
#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_MINOR_B 0
#define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
#define ISDN_MINOR_CTRL 64
#define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1))
#define ISDN_MINOR_PPP 128
#define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1))
#define ISDN_MINOR_STATUS 255
#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/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_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX)
#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 4 /* Main Timer-Resolution */
#define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */
#define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* 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_CARRIER 256 /* Wait for Carrier */
#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_CARRIER)
/* 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)))
#define ISDN_TIMER_DTIMEOUT60 (60*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 */
#define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
/* Phone-list-element */
typedef struct {
void *next;
char num[ISDN_MSNLEN];
} isdn_net_phone;
/*
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 net_device_stats 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 */
ulong 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 */
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 net_device *master; /* Ptr to Master device for slaves */
struct net_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_head super_tx_queue; /* List of supervisory frames to */
/* be transmitted asap */
atomic_t frame_cnt; /* number of frames currently */
/* queued in HL driver */
/* Ptr to orig. hard_header_cache */
spinlock_t xmit_lock; /* used to protect the xmit path of */
/* a particular channel (including */
/* the frame_cnt */
int (*org_hhc)(
struct neighbour *neigh,
struct hh_cache *hh);
/* Ptr to orig. header_cache_update */
void (*org_hcu)(struct hh_cache *,
struct net_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_X25
struct concap_device_ops *dops; /* callbacks used by encapsulator */
#endif
/* use an own struct for that in later versions */
ulong cisco_myseq; /* Local keepalive seq. for Cisco */
ulong cisco_mineseen; /* returned keepalive seq. from remote */
ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */
int cisco_keepalive_period; /* keepalive period */
ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */
char cisco_line_state; /* state of line according to keepalive packets */
char cisco_debserint; /* debugging flag of cisco hdlc with slarp */
struct timer_list cisco_timer;
struct work_struct tqueue;
} isdn_net_local;
/* the interface itself */
typedef struct isdn_net_dev_s {
isdn_net_local *local;
isdn_net_local *queue; /* circular list of all bundled
channels, which are currently
online */
spinlock_t queue_lock; /* lock to protect queue */
void *next; /* Pointer to next isdn-interface */
struct net_device dev; /* interface to upper levels */
#ifdef CONFIG_ISDN_PPP
ippp_bundle * pb; /* pointer to the common bundle structure
* with the per-bundle data */
#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 the private skb->cb data array. A few macros help
* accessing the variables.
*/
typedef struct _isdn_audio_data {
unsigned short dle_count;
unsigned char lock;
} isdn_audio_data_t;
#define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count)
#define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock)
#endif
/* Private data of AT-command-interpreter */
typedef struct atemu {
u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */
u_char mdmreg[ISDN_MODEM_NUMREG]; /* 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 */
char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */
#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 */
u_long lastplus; /* Timestamp of last + */
int carrierwait; /* Seconds of carrier waiting */
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;
struct module *owner;
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 or ATA */
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 */
void *silence_state; /* state for silence detection */
#endif
#ifdef CONFIG_ISDN_TTY_FAX
struct T30_s *fax; /* T30 Fax Group 3 data/interface */
int faxonline; /* Fax-channel status */
#endif
struct tty_struct *tty; /* Pointer to corresponding tty */
atemu emu; /* AT-emulator data */
struct ktermios normal_termios; /* For saving termios structs */
struct ktermios callout_termios;
wait_queue_head_t open_wait, close_wait;
struct semaphore write_sem;
spinlock_t readlock;
} modem_info;
#define ISDN_MODEM_WINSIZE 8
/* Description of one ISDN-tty */
typedef struct _isdn_modem {
int refcount; /* Number of opens */
struct tty_driver *tty_modem; /* tty-device */
struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
struct ktermios *modem_termios[ISDN_MAX_CHANNELS];
struct ktermios *modem_termios_locked[ISDN_MAX_CHANNELS];
modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
} isdn_modem_t;
/*======================= 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;
#define DRV_FLAG_RUNNING 1
#define DRV_FLAG_REJBUS 2
#define DRV_FLAG_LOADED 4
/* Description of hardware-level-driver */
typedef struct _isdn_driver {
ulong online; /* Channel-Online flags */
ulong flags; /* Misc driver Flags */
int locks; /* Number of locks for this driver */
int channels; /* Number of channels */
wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */
int maxbufsize; /* Maximum Buffersize supported */
unsigned long pktcount; /* Until now: unused */
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 */
wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */
wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */
char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
} isdn_driver_t;
/* Main driver-data */
typedef struct isdn_devt {
struct module *owner;
spinlock_t lock;
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 */
spinlock_t timerlock;
int tflags; /* Timer-Flags: */
/* see ISDN_TIMER_..defines */
int global_flags;
infostruct *infochain; /* List of open info-devs. */
wait_queue_head_t 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.... */
isdn_driver_t *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 */
isdn_modem_t 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*/
unsigned long global_features;
} isdn_dev;
extern isdn_dev *dev;
#endif /* __KERNEL__ */
#endif /* __ISDN_H__ */
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