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C/C++ Source or Header | 2008-12-24 | 29.5 KB | 623 lines

/* $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> #define ISDN_MAX_DRIVERS 32 #define ISDN_MAX_CHANNELS 64 /* 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> #include <linux/mutex.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; 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_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; 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 /* __KERNEL__ */ #endif /* __ISDN_H__ */