| /* $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/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> |
| #include <linux/mutex.h> |
| #include <uapi/linux/isdn.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/ppp-ioctl.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; |
| 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 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_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */ |
| #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */ |
| |
| #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 tty_port port; |
| int x_char; /* xon/xoff character */ |
| int mcr; /* Modem control register */ |
| int msr; /* Modem status register */ |
| int lsr; /* Line status register */ |
| int line; |
| int online; /* 1 = B-Channel is up, drop data */ |
| /* 2 = B-Channel is up, deliver d.*/ |
| int dialing; /* Dial in progress or ATA */ |
| int closing; |
| 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 */ |
| 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 |
| atemu emu; /* AT-emulator data */ |
| 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 mutex mtx; /* serialize list access*/ |
| unsigned long global_features; |
| } isdn_dev; |
| |
| extern isdn_dev *dev; |
| |
| |
| #endif /* __ISDN_H__ */ |
