1/* $Id: isdn.h,v 1.1.1.1 2007/08/03 18:53:41 Exp $ 2 * 3 * Main header for the Linux ISDN subsystem (linklevel). 4 * 5 * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de) 6 * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg 7 * Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de) 8 * 9 * This software may be used and distributed according to the terms 10 * of the GNU General Public License, incorporated herein by reference. 11 * 12 */ 13 14#ifndef __ISDN_H__ 15#define __ISDN_H__ 16 17#include <linux/ioctl.h> 18 19#ifdef CONFIG_COBALT_MICRO_SERVER 20/* Save memory */ 21#define ISDN_MAX_DRIVERS 2 22#define ISDN_MAX_CHANNELS 8 23#else 24#define ISDN_MAX_DRIVERS 32 25#define ISDN_MAX_CHANNELS 64 26#endif 27 28/* New ioctl-codes */ 29#define IIOCNETAIF _IO('I',1) 30#define IIOCNETDIF _IO('I',2) 31#define IIOCNETSCF _IO('I',3) 32#define IIOCNETGCF _IO('I',4) 33#define IIOCNETANM _IO('I',5) 34#define IIOCNETDNM _IO('I',6) 35#define IIOCNETGNM _IO('I',7) 36#define IIOCGETSET _IO('I',8) /* no longer supported */ 37#define IIOCSETSET _IO('I',9) /* no longer supported */ 38#define IIOCSETVER _IO('I',10) 39#define IIOCNETHUP _IO('I',11) 40#define IIOCSETGST _IO('I',12) 41#define IIOCSETBRJ _IO('I',13) 42#define IIOCSIGPRF _IO('I',14) 43#define IIOCGETPRF _IO('I',15) 44#define IIOCSETPRF _IO('I',16) 45#define IIOCGETMAP _IO('I',17) 46#define IIOCSETMAP _IO('I',18) 47#define IIOCNETASL _IO('I',19) 48#define IIOCNETDIL _IO('I',20) 49#define IIOCGETCPS _IO('I',21) 50#define IIOCGETDVR _IO('I',22) 51#define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */ 52#define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */ 53 54#define IIOCNETALN _IO('I',32) 55#define IIOCNETDLN _IO('I',33) 56 57#define IIOCNETGPN _IO('I',34) 58 59#define IIOCDBGVAR _IO('I',127) 60 61#define IIOCDRVCTL _IO('I',128) 62 63/* cisco hdlck device private ioctls */ 64#define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0) 65#define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1) 66#define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2) 67#define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3) 68 69/* Packet encapsulations for net-interfaces */ 70#define ISDN_NET_ENCAP_ETHER 0 71#define ISDN_NET_ENCAP_RAWIP 1 72#define ISDN_NET_ENCAP_IPTYP 2 73#define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */ 74#define ISDN_NET_ENCAP_SYNCPPP 4 75#define ISDN_NET_ENCAP_UIHDLC 5 76#define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */ 77#define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/ 78#define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE 79 80/* Facility which currently uses an ISDN-channel */ 81#define ISDN_USAGE_NONE 0 82#define ISDN_USAGE_RAW 1 83#define ISDN_USAGE_MODEM 2 84#define ISDN_USAGE_NET 3 85#define ISDN_USAGE_VOICE 4 86#define ISDN_USAGE_FAX 5 87#define ISDN_USAGE_MASK 7 /* Mask to get plain usage */ 88#define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */ 89#define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */ 90#define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */ 91 92#define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */ 93#define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */ 94#define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */ 95 96#define ISDN_MSNLEN 32 97#define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */ 98#define TTY_DV 0x06 /* Data version for iprofd etc. */ 99 100#define INF_DV 0x01 /* Data version for /dev/isdninfo */ 101 102typedef struct { 103 char drvid[25]; 104 unsigned long arg; 105} isdn_ioctl_struct; 106 107typedef struct { 108 char name[10]; 109 char phone[ISDN_MSNLEN]; 110 int outgoing; 111} isdn_net_ioctl_phone; 112 113typedef struct { 114 char name[10]; /* Name of interface */ 115 char master[10]; /* Name of Master for Bundling */ 116 char slave[10]; /* Name of Slave for Bundling */ 117 char eaz[256]; /* EAZ/MSN */ 118 char drvid[25]; /* DriverId for Bindings */ 119 int onhtime; /* Hangup-Timeout */ 120 int charge; /* Charge-Units */ 121 int l2_proto; /* Layer-2 protocol */ 122 int l3_proto; /* Layer-3 protocol */ 123 int p_encap; /* Encapsulation */ 124 int exclusive; /* Channel, if bound exclusive */ 125 int dialmax; /* Dial Retry-Counter */ 126 int slavedelay; /* Delay until slave starts up */ 127 int cbdelay; /* Delay before Callback */ 128 int chargehup; /* Flag: Charge-Hangup */ 129 int ihup; /* Flag: Hangup-Timeout on incoming line */ 130 int secure; /* Flag: Secure */ 131 int callback; /* Flag: Callback */ 132 int cbhup; /* Flag: Reject Call before Callback */ 133 int pppbind; /* ippp device for bindings */ 134 int chargeint; /* Use fixed charge interval length */ 135 int triggercps; /* BogoCPS needed for triggering slave */ 136 int dialtimeout; /* Dial-Timeout */ 137 int dialwait; /* Time to wait after failed dial */ 138 int dialmode; /* Flag: off / on / auto */ 139} isdn_net_ioctl_cfg; 140 141#define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */ 142#define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */ 143#define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */ 144#define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */ 145#define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK) 146 147#ifdef __KERNEL__ 148 149#include <linux/errno.h> 150#include <linux/fs.h> 151#include <linux/major.h> 152#include <asm/io.h> 153#include <linux/kernel.h> 154#include <linux/signal.h> 155#include <linux/slab.h> 156#include <linux/timer.h> 157#include <linux/wait.h> 158#include <linux/tty.h> 159#include <linux/tty_flip.h> 160#include <linux/serial_reg.h> 161#include <linux/fcntl.h> 162#include <linux/types.h> 163#include <linux/interrupt.h> 164#include <linux/ip.h> 165#include <linux/in.h> 166#include <linux/netdevice.h> 167#include <linux/etherdevice.h> 168#include <linux/skbuff.h> 169#include <linux/tcp.h> 170 171#define ISDN_TTY_MAJOR 43 172#define ISDN_TTYAUX_MAJOR 44 173#define ISDN_MAJOR 45 174 175/* The minor-devicenumbers for Channel 0 and 1 are used as arguments for 176 * physical Channel-Mapping, so they MUST NOT be changed without changing 177 * the correspondent code in isdn.c 178 */ 179 180#define ISDN_MINOR_B 0 181#define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1) 182#define ISDN_MINOR_CTRL 64 183#define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1)) 184#define ISDN_MINOR_PPP 128 185#define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1)) 186#define ISDN_MINOR_STATUS 255 187 188#ifdef CONFIG_ISDN_PPP 189 190#ifdef CONFIG_ISDN_PPP_VJ 191# include <net/slhc_vj.h> 192#endif 193 194#include <linux/ppp_defs.h> 195#include <linux/if_ppp.h> 196 197#include <linux/isdn_ppp.h> 198#endif 199 200#ifdef CONFIG_ISDN_X25 201# include <linux/concap.h> 202#endif 203 204#include <linux/isdnif.h> 205 206#define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */ 207 208/* Until now unused */ 209#define ISDN_SERVICE_VOICE 1 210#define ISDN_SERVICE_AB 1<<1 211#define ISDN_SERVICE_X21 1<<2 212#define ISDN_SERVICE_G4 1<<3 213#define ISDN_SERVICE_BTX 1<<4 214#define ISDN_SERVICE_DFUE 1<<5 215#define ISDN_SERVICE_X25 1<<6 216#define ISDN_SERVICE_TTX 1<<7 217#define ISDN_SERVICE_MIXED 1<<8 218#define ISDN_SERVICE_FW 1<<9 219#define ISDN_SERVICE_GTEL 1<<10 220#define ISDN_SERVICE_BTXN 1<<11 221#define ISDN_SERVICE_BTEL 1<<12 222 223/* Macros checking plain usage */ 224#define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE) 225#define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW) 226#define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) 227#define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) 228#define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET) 229#define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX) 230#define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING) 231#define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \ 232 ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) ) 233 234/* Timer-delays and scheduling-flags */ 235#define ISDN_TIMER_RES 4 /* Main Timer-Resolution */ 236#define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */ 237#define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 1 sec */ 238#define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */ 239#define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */ 240#define ISDN_TIMER_MODEMREAD 1 241#define ISDN_TIMER_MODEMPLUS 2 242#define ISDN_TIMER_MODEMRING 4 243#define ISDN_TIMER_MODEMXMIT 8 244#define ISDN_TIMER_NETDIAL 16 245#define ISDN_TIMER_NETHANGUP 32 246#define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */ 247#define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \ 248 ISDN_TIMER_MODEMXMIT) 249#define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \ 250 ISDN_TIMER_NETDIAL | ISDN_TIMER_CARRIER) 251 252/* Timeout-Values for isdn_net_dial() */ 253#define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 254#define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 255#define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 256 257/* GLOBAL_FLAGS */ 258#define ISDN_GLOBAL_STOPPED 1 259 260/*=================== Start of ip-over-ISDN stuff =========================*/ 261 262/* Feature- and status-flags for a net-interface */ 263#define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */ 264#define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */ 265#define ISDN_NET_CALLBACK 0x04 /* activate callback */ 266#define ISDN_NET_CBHUP 0x08 /* hangup before callback */ 267#define ISDN_NET_CBOUT 0x10 /* remote machine does callback */ 268 269#define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */ 270 271/* Phone-list-element */ 272typedef struct { 273 void *next; 274 char num[ISDN_MSNLEN]; 275} isdn_net_phone; 276 277/* 278 Principles when extending structures for generic encapsulation protocol 279 ("concap") support: 280 - Stuff which is hardware specific (here i4l-specific) goes in 281 the netdev -> local structure (here: isdn_net_local) 282 - Stuff which is encapsulation protocol specific goes in the structure 283 which holds the linux device structure (here: isdn_net_device) 284*/ 285 286/* Local interface-data */ 287typedef struct isdn_net_local_s { 288 ulong magic; 289 char name[10]; /* Name of device */ 290 struct net_device_stats stats; /* Ethernet Statistics */ 291 int isdn_device; /* Index to isdn-device */ 292 int isdn_channel; /* Index to isdn-channel */ 293 int ppp_slot; /* PPPD device slot number */ 294 int pre_device; /* Preselected isdn-device */ 295 int pre_channel; /* Preselected isdn-channel */ 296 int exclusive; /* If non-zero idx to reserved chan.*/ 297 int flags; /* Connection-flags */ 298 int dialretry; /* Counter for Dialout-retries */ 299 int dialmax; /* Max. Number of Dial-retries */ 300 int cbdelay; /* Delay before Callback starts */ 301 int dtimer; /* Timeout-counter for dialing */ 302 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */ 303 u_char cbhup; /* Flag: Reject Call before Callback*/ 304 u_char dialstate; /* State for dialing */ 305 u_char p_encap; /* Packet encapsulation */ 306 /* 0 = Ethernet over ISDN */ 307 /* 1 = RAW-IP */ 308 /* 2 = IP with type field */ 309 u_char l2_proto; /* Layer-2-protocol */ 310 /* See ISDN_PROTO_L2..-constants in */ 311 /* isdnif.h */ 312 /* 0 = X75/LAPB with I-Frames */ 313 /* 1 = X75/LAPB with UI-Frames */ 314 /* 2 = X75/LAPB with BUI-Frames */ 315 /* 3 = HDLC */ 316 u_char l3_proto; /* Layer-3-protocol */ 317 /* See ISDN_PROTO_L3..-constants in */ 318 /* isdnif.h */ 319 /* 0 = Transparent */ 320 int huptimer; /* Timeout-counter for auto-hangup */ 321 int charge; /* Counter for charging units */ 322 ulong chargetime; /* Timer for Charging info */ 323 int hupflags; /* Flags for charge-unit-hangup: */ 324 /* bit0: chargeint is invalid */ 325 /* bit1: Getting charge-interval */ 326 /* bit2: Do charge-unit-hangup */ 327 /* bit3: Do hangup even on incoming */ 328 int outgoing; /* Flag: outgoing call */ 329 int onhtime; /* Time to keep link up */ 330 int chargeint; /* Interval between charge-infos */ 331 int onum; /* Flag: at least 1 outgoing number */ 332 int cps; /* current speed of this interface */ 333 int transcount; /* byte-counter for cps-calculation */ 334 int sqfull; /* Flag: netdev-queue overloaded */ 335 ulong sqfull_stamp; /* Start-Time of overload */ 336 ulong slavedelay; /* Dynamic bundling delaytime */ 337 int triggercps; /* BogoCPS needed for trigger slave */ 338 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */ 339 /* phone[0] = Incoming Numbers */ 340 /* phone[1] = Outgoing Numbers */ 341 isdn_net_phone *dial; /* Pointer to dialed number */ 342 struct net_device *master; /* Ptr to Master device for slaves */ 343 struct net_device *slave; /* Ptr to Slave device for masters */ 344 struct isdn_net_local_s *next; /* Ptr to next link in bundle */ 345 struct isdn_net_local_s *last; /* Ptr to last link in bundle */ 346 struct isdn_net_dev_s *netdev; /* Ptr to netdev */ 347 struct sk_buff_head super_tx_queue; /* List of supervisory frames to */ 348 /* be transmitted asap */ 349 atomic_t frame_cnt; /* number of frames currently */ 350 /* queued in HL driver */ 351 /* Ptr to orig. hard_header_cache */ 352 spinlock_t xmit_lock; /* used to protect the xmit path of */ 353 /* a particular channel (including */ 354 /* the frame_cnt */ 355 356 int (*org_hhc)( 357 struct neighbour *neigh, 358 struct hh_cache *hh); 359 /* Ptr to orig. header_cache_update */ 360 void (*org_hcu)(struct hh_cache *, 361 struct net_device *, 362 unsigned char *); 363 int pppbind; /* ippp device for bindings */ 364 int dialtimeout; /* How long shall we try on dialing? (jiffies) */ 365 int dialwait; /* How long shall we wait after failed attempt? (jiffies) */ 366 ulong dialstarted; /* jiffies of first dialing-attempt */ 367 ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */ 368 int huptimeout; /* How long will the connection be up? (seconds) */ 369#ifdef CONFIG_ISDN_X25 370 struct concap_device_ops *dops; /* callbacks used by encapsulator */ 371#endif 372 /* use an own struct for that in later versions */ 373 ulong cisco_myseq; /* Local keepalive seq. for Cisco */ 374 ulong cisco_mineseen; /* returned keepalive seq. from remote */ 375 ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */ 376 int cisco_keepalive_period; /* keepalive period */ 377 ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */ 378 char cisco_line_state; /* state of line according to keepalive packets */ 379 char cisco_debserint; /* debugging flag of cisco hdlc with slarp */ 380 struct timer_list cisco_timer; 381 struct work_struct tqueue; 382} isdn_net_local; 383 384/* the interface itself */ 385typedef struct isdn_net_dev_s { 386 isdn_net_local *local; 387 isdn_net_local *queue; /* circular list of all bundled 388 channels, which are currently 389 online */ 390 spinlock_t queue_lock; /* lock to protect queue */ 391 void *next; /* Pointer to next isdn-interface */ 392 struct net_device dev; /* interface to upper levels */ 393#ifdef CONFIG_ISDN_PPP 394 ippp_bundle * pb; /* pointer to the common bundle structure 395 * with the per-bundle data */ 396#endif 397#ifdef CONFIG_ISDN_X25 398 struct concap_proto *cprot; /* connection oriented encapsulation protocol */ 399#endif 400 401} isdn_net_dev; 402 403/*===================== End of ip-over-ISDN stuff ===========================*/ 404 405/*======================= Start of ISDN-tty stuff ===========================*/ 406 407#define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */ 408#define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */ 409#define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */ 410#define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */ 411#define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */ 412#define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */ 413#define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */ 414#define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */ 415#define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */ 416#define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */ 417#define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */ 418#define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */ 419#define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */ 420#define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */ 421#define ISDN_SERIAL_TYPE_NORMAL 1 422#define ISDN_SERIAL_TYPE_CALLOUT 2 423 424#ifdef CONFIG_ISDN_AUDIO 425/* For using sk_buffs with audio we need some private variables 426 * within each sk_buff. For this purpose, we declare a struct here, 427 * and put it always at the private skb->cb data array. A few macros help 428 * accessing the variables. 429 */ 430typedef struct _isdn_audio_data { 431 unsigned short dle_count; 432 unsigned char lock; 433} isdn_audio_data_t; 434 435#define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count) 436#define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock) 437#endif 438 439/* Private data of AT-command-interpreter */ 440typedef struct atemu { 441 u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */ 442 u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */ 443 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */ 444 char msn[ISDN_MSNLEN]; /* EAZ/MSN */ 445 char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */ 446 char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */ 447 char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */ 448 char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */ 449#ifdef CONFIG_ISDN_AUDIO 450 u_char vpar[10]; /* Voice-parameters */ 451 int lastDLE; /* Flag for voice-coding: DLE seen */ 452#endif 453 int mdmcmdl; /* Length of Modem-Commandbuffer */ 454 int pluscount; /* Counter for +++ sequence */ 455 u_long lastplus; /* Timestamp of last + */ 456 int carrierwait; /* Seconds of carrier waiting */ 457 char mdmcmd[255]; /* Modem-Commandbuffer */ 458 unsigned int charge; /* Charge units of current connection */ 459} atemu; 460 461/* Private data (similar to async_struct in <linux/serial.h>) */ 462typedef struct modem_info { 463 int magic; 464 struct module *owner; 465 int flags; /* defined in tty.h */ 466 int x_char; /* xon/xoff character */ 467 int mcr; /* Modem control register */ 468 int msr; /* Modem status register */ 469 int lsr; /* Line status register */ 470 int line; 471 int count; /* # of fd on device */ 472 int blocked_open; /* # of blocked opens */ 473 long session; /* Session of opening process */ 474 long pgrp; /* pgrp of opening process */ 475 int online; /* 1 = B-Channel is up, drop data */ 476 /* 2 = B-Channel is up, deliver d.*/ 477 int dialing; /* Dial in progress or ATA */ 478 int rcvsched; /* Receive needs schedule */ 479 int isdn_driver; /* Index to isdn-driver */ 480 int isdn_channel; /* Index to isdn-channel */ 481 int drv_index; /* Index to dev->usage */ 482 int ncarrier; /* Flag: schedule NO CARRIER */ 483 unsigned char last_cause[8]; /* Last cause message */ 484 unsigned char last_num[ISDN_MSNLEN]; 485 /* Last phone-number */ 486 unsigned char last_l2; /* Last layer-2 protocol */ 487 unsigned char last_si; /* Last service */ 488 unsigned char last_lhup; /* Last hangup local? */ 489 unsigned char last_dir; /* Last direction (in or out) */ 490 struct timer_list nc_timer; /* Timer for delayed NO CARRIER */ 491 int send_outstanding;/* # of outstanding send-requests */ 492 int xmit_size; /* max. # of chars in xmit_buf */ 493 int xmit_count; /* # of chars in xmit_buf */ 494 unsigned char *xmit_buf; /* transmit buffer */ 495 struct sk_buff_head xmit_queue; /* transmit queue */ 496 atomic_t xmit_lock; /* Semaphore for isdn_tty_write */ 497#ifdef CONFIG_ISDN_AUDIO 498 int vonline; /* Voice-channel status */ 499 /* Bit 0 = recording */ 500 /* Bit 1 = playback */ 501 /* Bit 2 = playback, DLE-ETX seen */ 502 struct sk_buff_head dtmf_queue; /* queue for dtmf results */ 503 void *adpcms; /* state for adpcm decompression */ 504 void *adpcmr; /* state for adpcm compression */ 505 void *dtmf_state; /* state for dtmf decoder */ 506 void *silence_state; /* state for silence detection */ 507#endif 508#ifdef CONFIG_ISDN_TTY_FAX 509 struct T30_s *fax; /* T30 Fax Group 3 data/interface */ 510 int faxonline; /* Fax-channel status */ 511#endif 512 struct tty_struct *tty; /* Pointer to corresponding tty */ 513 atemu emu; /* AT-emulator data */ 514 struct ktermios normal_termios; /* For saving termios structs */ 515 struct ktermios callout_termios; 516 wait_queue_head_t open_wait, close_wait; 517 struct semaphore write_sem; 518 spinlock_t readlock; 519} modem_info; 520 521#define ISDN_MODEM_WINSIZE 8 522 523/* Description of one ISDN-tty */ 524typedef struct _isdn_modem { 525 int refcount; /* Number of opens */ 526 struct tty_driver *tty_modem; /* tty-device */ 527 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */ 528 struct ktermios *modem_termios[ISDN_MAX_CHANNELS]; 529 struct ktermios *modem_termios_locked[ISDN_MAX_CHANNELS]; 530 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */ 531} isdn_modem_t; 532 533/*======================= End of ISDN-tty stuff ============================*/ 534 535/*======================== Start of V.110 stuff ============================*/ 536#define V110_BUFSIZE 1024 537 538typedef struct { 539 int nbytes; /* 1 Matrixbyte -> nbytes in stream */ 540 int nbits; /* Number of used bits in streambyte */ 541 unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */ 542 int decodelen; /* Amount of data in decodebuf */ 543 int SyncInit; /* Number of sync frames to send */ 544 unsigned char *OnlineFrame; /* Precalculated V110 idle frame */ 545 unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */ 546 int framelen; /* Length of frames */ 547 int skbuser; /* Number of unacked userdata skbs */ 548 int skbidle; /* Number of unacked idle/sync skbs */ 549 int introducer; /* Local vars for decoder */ 550 int dbit; 551 unsigned char b; 552 int skbres; /* space to reserve in outgoing skb */ 553 int maxsize; /* maxbufsize of lowlevel driver */ 554 unsigned char *encodebuf; /* temporary buffer for encoding */ 555 unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */ 556} isdn_v110_stream; 557 558/*========================= End of V.110 stuff =============================*/ 559 560/*======================= Start of general stuff ===========================*/ 561 562typedef struct { 563 char *next; 564 char *private; 565} infostruct; 566 567#define DRV_FLAG_RUNNING 1 568#define DRV_FLAG_REJBUS 2 569#define DRV_FLAG_LOADED 4 570 571/* Description of hardware-level-driver */ 572typedef struct _isdn_driver { 573 ulong online; /* Channel-Online flags */ 574 ulong flags; /* Misc driver Flags */ 575 int locks; /* Number of locks for this driver */ 576 int channels; /* Number of channels */ 577 wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */ 578 int maxbufsize; /* Maximum Buffersize supported */ 579 unsigned long pktcount; /* Until now: unused */ 580 int stavail; /* Chars avail on Status-device */ 581 isdn_if *interface; /* Interface to driver */ 582 int *rcverr; /* Error-counters for B-Ch.-receive */ 583 int *rcvcount; /* Byte-counters for B-Ch.-receive */ 584#ifdef CONFIG_ISDN_AUDIO 585 unsigned long DLEflag; /* Flags: Insert DLE at next read */ 586#endif 587 struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */ 588 wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */ 589 wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */ 590 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */ 591} isdn_driver_t; 592 593/* Main driver-data */ 594typedef struct isdn_devt { 595 struct module *owner; 596 spinlock_t lock; 597 unsigned short flags; /* Bitmapped Flags: */ 598 int drivers; /* Current number of drivers */ 599 int channels; /* Current number of channels */ 600 int net_verbose; /* Verbose-Flag */ 601 int modempoll; /* Flag: tty-read active */ 602 spinlock_t timerlock; 603 int tflags; /* Timer-Flags: */ 604 /* see ISDN_TIMER_..defines */ 605 int global_flags; 606 infostruct *infochain; /* List of open info-devs. */ 607 wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */ 608 struct timer_list timer; /* Misc.-function Timer */ 609 int chanmap[ISDN_MAX_CHANNELS]; /* Map minor->device-channel */ 610 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */ 611 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */ 612 char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN]; 613 /* Remote number of active ch.*/ 614 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */ 615 isdn_driver_t *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */ 616 isdn_net_dev *netdev; /* Linked list of net-if's */ 617 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */ 618 struct task_struct *profd; /* For iprofd */ 619 isdn_modem_t mdm; /* tty-driver-data */ 620 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */ 621 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */ 622 ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */ 623 ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */ 624 int v110emu[ISDN_MAX_CHANNELS]; /* V.110 emulator-mode 0=none */ 625 atomic_t v110use[ISDN_MAX_CHANNELS]; /* Usage-Semaphore for stream */ 626 isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */ 627 struct semaphore sem; /* serialize list access*/ 628 unsigned long global_features; 629} isdn_dev; 630 631extern isdn_dev *dev; 632 633 634#endif /* __KERNEL__ */ 635 636#endif /* __ISDN_H__ */ 637