include/linux/isdn.h

   1 /* $Id: isdn.h,v 1.71 1999/08/23 15:54:22 keil Exp $
   2  *
   3  * Main header for the Linux ISDN subsystem (linklevel).
   4  *
   5  * Copyright 1994,95,96 by Fritz Elfert (fritz@wuemaus.franken.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 program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2, or (at your option)
  12  * any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  * $Log: isdn.h,v $
  24  * Revision 1.71  1999/08/23 15:54:22  keil
  25  * more backported changes from kernel 2.3.14
  26  *
  27  * Revision 1.70  1999/07/31 12:59:58  armin
  28  * Added tty fax capabilities.
  29  *
  30  * Revision 1.69  1999/07/13 20:47:53  werner
  31  * added channel bit ISDN_USAGE_DISABLED for limiting b-channel access.
  32  *
  33  * Revision 1.68  1999/07/11 17:07:37  armin
  34  * Added tty modem register S23.
  35  * Added new layer 2 and 3 protocols for Fax and DSP functions.
  36  *
  37  * Revision 1.67  1999/07/07 10:17:24  detabc
  38  * remove unused messages
  39  *
  40  * Revision 1.66  1999/07/01 08:35:37  keil
  41  * compatibility to 2.3
  42  *
  43  * Revision 1.65  1999/06/10 11:51:27  paul
  44  * fixed comment for NET_DV
  45  *
  46  * Revision 1.64  1999/04/18 14:57:14  fritz
  47  * Removed TIMRU stuff
  48  *
  49  * Revision 1.63  1999/04/18 14:07:18  fritz
  50  * Removed TIMRU stuff.
  51  *
  52  * Revision 1.62  1999/04/12 13:16:54  fritz
  53  * Changes from 2.0 tree.
  54  *
  55  * Revision 1.61  1999/03/02 11:43:21  armin
  56  * Added variable to store connect-message of Modem.
  57  * Added Timer-define for RegS7 (Wait for Carrier).
  58  *
  59  * Revision 1.60  1998/10/25 14:50:29  fritz
  60  * Backported from MIPS (Cobalt).
  61  *
  62  * Revision 1.59  1998/10/23 10:18:55  paul
  63  * Implementation of "dialmode" (successor of "status")
  64  * You also need current isdnctrl for this!
  65  *
  66  * Revision 1.58  1998/10/23 10:10:06  fritz
  67  * Test-Checkin
  68  *
  69  * Revision 1.57  1998/08/31 21:10:01  he
  70  * new ioctl IIOCNETGPN for /dev/isdninfo (get network interface'
  71  *     peer phone number)
  72  *
  73  * Revision 1.56  1998/07/26 18:46:52  armin
  74  * Added silence detection in voice receive mode.
  75  *
  76  * Revision 1.55  1998/06/26 15:13:17  fritz
  77  * Added handling of STAT_ICALL with incomplete CPN.
  78  * Added AT&L for ttyI emulator.
  79  * Added more locking stuff in tty_write.
  80  *
  81  * Revision 1.54  1998/06/18 23:32:01  fritz
  82  * Replaced cli()/restore_flags() in isdn_tty_write() by locking.
  83  * Removed direct-senddown feature in isdn_tty_write because it will
  84  * never succeed with locking and is useless anyway.
  85  *
  86  * Revision 1.53  1998/06/17 19:51:51  he
  87  * merged with 2.1.10[34] (cosmetics and udelay() -> mdelay())
  88  * brute force fix to avoid Ugh's in isdn_tty_write()
  89  * cleaned up some dead code
  90  *
  91  * Revision 1.46  1998/04/14 16:28:59  he
  92  * Fixed user space access with interrupts off and remaining
  93  * copy_{to,from}_user() -> -EFAULT return codes
  94  *
  95  * Revision 1.45  1998/03/24 16:33:12  hipp
  96  * More CCP changes. BSD compression now "works" on a local loopback link.
  97  * Moved some isdn_ppp stuff from isdn.h to isdn_ppp.h
  98  *
  99  * Revision 1.44  1998/03/22 18:50:56  hipp
 100  * Added BSD Compression for syncPPP .. UNTESTED at the moment
 101  *
 102  * Revision 1.43  1998/03/09 17:46:44  he
 103  * merged in 2.1.89 changes
 104  *
 105  *
 106  * Revision 1.40  1998/03/08 01:08:29  fritz
 107  * Increased NET_DV because of TIMRU
 108  *
 109  * Revision 1.39  1998/03/07 22:42:49  fritz
 110  * Starting generic module support (Nothing usable yet).
 111  *
 112  * Revision 1.38  1998/03/07 18:21:29  cal
 113  * Dynamic Timeout-Rule-Handling vs. 971110 included
 114  *
 115  * Revision 1.37  1998/02/22 19:45:24  fritz
 116  * Some changes regarding V.110
 117  *
 118  * Revision 1.36  1998/02/20 17:35:55  fritz
 119  * Added V.110 stuff.
 120  *
 121  * Revision 1.35  1998/01/31 22:14:14  keil
 122  * changes for 2.1.82
 123  *
 124  * Revision 1.34  1997/10/09 21:28:11  fritz
 125  * New HL<->LL interface:
 126  *   New BSENT callback with nr. of bytes included.
 127  *   Sending without ACK.
 128  *   New L1 error status (not yet in use).
 129  *   Cleaned up obsolete structures.
 130  * Implemented Cisco-SLARP.
 131  * Changed local net-interface data to be dynamically allocated.
 132  * Removed old 2.0 compatibility stuff.
 133  *
 134  * Revision 1.33  1997/08/21 14:44:22  fritz
 135  * Moved triggercps to end of struct for backwards-compatibility.
 136  *
 137  * Revision 1.32  1997/08/21 09:49:46  fritz
 138  * Increased NET_DV
 139  *
 140  * Revision 1.31  1997/06/22 11:57:07  fritz
 141  * Added ability to adjust slave triggerlevel.
 142  *
 143  * Revision 1.30  1997/06/17 13:07:23  hipp
 144  * compression changes , MP changes
 145  *
 146  * Revision 1.29  1997/05/27 15:18:02  fritz
 147  * Added changes for recent 2.1.x kernels:
 148  *   changed return type of isdn_close
 149  *   queue_task_* -> queue_task
 150  *   clear/set_bit -> test_and_... where apropriate.
 151  *   changed type of hard_header_cache parameter.
 152  *
 153  * Revision 1.28  1997/03/07 01:33:01  fritz
 154  * Added proper ifdef's for CONFIG_ISDN_AUDIO
 155  *
 156  * Revision 1.27  1997/03/05 21:11:49  fritz
 157  * Minor fixes.
 158  *
 159  * Revision 1.26  1997/02/28 02:37:53  fritz
 160  * Added some comments.
 161  *
 162  * Revision 1.25  1997/02/23 16:54:23  hipp
 163  * some initial changes for future PPP compresion
 164  *
 165  * Revision 1.24  1997/02/18 09:42:45  fritz
 166  * Bugfix: Increased ISDN_MODEM_ANZREG.
 167  * Increased TTY_DV.
 168  *
 169  * Revision 1.23  1997/02/10 22:07:13  fritz
 170  * Added 2 modem registers for numbering plan and screening info.
 171  *
 172  * Revision 1.22  1997/02/03 23:42:08  fritz
 173  * Added ISDN_TIMER_RINGING
 174  * Misc. changes for Kernel 2.1.X compatibility
 175  *
 176  * Revision 1.21  1997/01/17 01:19:10  fritz
 177  * Applied chargeint patch.
 178  *
 179  * Revision 1.20  1997/01/17 00:41:19  fritz
 180  * Increased TTY_DV.
 181  *
 182  * Revision 1.19  1997/01/14 01:41:07  fritz
 183  * Added ATI2 related variables.
 184  * Added variables for audio support in skbuffs.
 185  *
 186  * Revision 1.18  1996/11/06 17:37:50  keil
 187  * more changes for 2.1.X
 188  *
 189  * Revision 1.17  1996/09/07 12:53:57  hipp
 190  * moved a few isdn_ppp.c specific defines to drives/isdn/isdn_ppp.h
 191  *
 192  * Revision 1.16  1996/08/12 16:20:56  hipp
 193  * renamed ppp_minor to ppp_slot
 194  *
 195  * Revision 1.15  1996/06/15 14:56:57  fritz
 196  * Added version signatures for data structures used
 197  * by userlevel programs.
 198  *
 199  * Revision 1.14  1996/06/06 21:24:23  fritz
 200  * Started adding support for suspend/resume.
 201  *
 202  * Revision 1.13  1996/06/05 02:18:20  fritz
 203  * Added DTMF decoding stuff.
 204  *
 205  * Revision 1.12  1996/06/03 19:55:08  fritz
 206  * Fixed typos.
 207  *
 208  * Revision 1.11  1996/05/31 01:37:47  fritz
 209  * Minor changes, due to changes in isdn_tty.c
 210  *
 211  * Revision 1.10  1996/05/18 01:37:18  fritz
 212  * Added spelling corrections and some minor changes
 213  * to stay in sync with kernel.
 214  *
 215  * Revision 1.9  1996/05/17 03:58:20  fritz
 216  * Added flags for DLE handling.
 217  *
 218  * Revision 1.8  1996/05/11 21:49:55  fritz
 219  * Removed queue management variables.
 220  * Changed queue management to use sk_buffs.
 221  *
 222  * Revision 1.7  1996/05/07 09:10:06  fritz
 223  * Reorganized tty-related structs.
 224  *
 225  * Revision 1.6  1996/05/06 11:38:27  hipp
 226  * minor change in ippp struct
 227  *
 228  * Revision 1.5  1996/04/30 11:03:16  fritz
 229  * Added Michael's ippp-bind patch.
 230  *
 231  * Revision 1.4  1996/04/29 23:00:02  fritz
 232  * Added variables for voice-support.
 233  *
 234  * Revision 1.3  1996/04/20 16:54:58  fritz
 235  * Increased maximum number of channels.
 236  * Added some flags for isdn_net to handle callback more reliable.
 237  * Fixed delay-definitions to be more accurate.
 238  * Misc. typos
 239  *
 240  * Revision 1.2  1996/02/11 02:10:02  fritz
 241  * Changed IOCTL-names
 242  * Added rx_netdev, st_netdev, first_skb, org_hcb, and org_hcu to
 243  * Netdevice-local struct.
 244  *
 245  * Revision 1.1  1996/01/10 20:55:07  fritz
 246  * Initial revision
 247  *
 248  */
 249
 250 #ifndef isdn_h
 251 #define isdn_h
 252
 253 #include <linux/isdn_compat.h>
 254 #include <linux/config.h>
 255 #include <linux/ioctl.h>
 256
 257 #define ISDN_TTY_MAJOR    43
 258 #define ISDN_TTYAUX_MAJOR 44
 259 #define ISDN_MAJOR        45
 260
 261 /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
 262  * physical Channel-Mapping, so they MUST NOT be changed without changing
 263  * the correspondent code in isdn.c
 264  */
 265
 266 #ifdef CONFIG_COBALT_MICRO_SERVER
 267 /* Save memory */
 268 #define ISDN_MAX_DRIVERS    2
 269 #define ISDN_MAX_CHANNELS   8
 270 #else
 271 #define ISDN_MAX_DRIVERS    32
 272 #define ISDN_MAX_CHANNELS   64
 273 #endif
 274 #define ISDN_MINOR_B        0
 275 #define ISDN_MINOR_BMAX     (ISDN_MAX_CHANNELS-1)
 276 #define ISDN_MINOR_CTRL     64
 277 #define ISDN_MINOR_CTRLMAX  (64 + (ISDN_MAX_CHANNELS-1))
 278 #define ISDN_MINOR_PPP      128
 279 #define ISDN_MINOR_PPPMAX   (128 + (ISDN_MAX_CHANNELS-1))
 280 #define ISDN_MINOR_STATUS   255
 281
 282 /* New ioctl-codes */
 283 #define IIOCNETAIF  _IO('I',1)
 284 #define IIOCNETDIF  _IO('I',2)
 285 #define IIOCNETSCF  _IO('I',3)
 286 #define IIOCNETGCF  _IO('I',4)
 287 #define IIOCNETANM  _IO('I',5)
 288 #define IIOCNETDNM  _IO('I',6)
 289 #define IIOCNETGNM  _IO('I',7)
 290 #define IIOCGETSET  _IO('I',8) /* no longer supported */
 291 #define IIOCSETSET  _IO('I',9) /* no longer supported */
 292 #define IIOCSETVER  _IO('I',10)
 293 #define IIOCNETHUP  _IO('I',11)
 294 #define IIOCSETGST  _IO('I',12)
 295 #define IIOCSETBRJ  _IO('I',13)
 296 #define IIOCSIGPRF  _IO('I',14)
 297 #define IIOCGETPRF  _IO('I',15)
 298 #define IIOCSETPRF  _IO('I',16)
 299 #define IIOCGETMAP  _IO('I',17)
 300 #define IIOCSETMAP  _IO('I',18)
 301 #define IIOCNETASL  _IO('I',19)
 302 #define IIOCNETDIL  _IO('I',20)
 303 #define IIOCGETCPS  _IO('I',21)
 304 #define IIOCGETDVR  _IO('I',22)
 305
 306 #define IIOCNETALN  _IO('I',32)
 307 #define IIOCNETDLN  _IO('I',33)
 308
 309 #define IIOCNETGPN  _IO('I',34)
 310
 311 #define IIOCDBGVAR  _IO('I',127)
 312
 313 #define IIOCDRVCTL  _IO('I',128)
 314
 315 /* Packet encapsulations for net-interfaces */
 316 #define ISDN_NET_ENCAP_ETHER      0
 317 #define ISDN_NET_ENCAP_RAWIP      1
 318 #define ISDN_NET_ENCAP_IPTYP      2
 319 #define ISDN_NET_ENCAP_CISCOHDLC  3 /* Without SLARP and keepalive */
 320 #define ISDN_NET_ENCAP_SYNCPPP    4
 321 #define ISDN_NET_ENCAP_UIHDLC     5
 322 #define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive    */
 323 #define ISDN_NET_ENCAP_X25IFACE   7 /* Documentation/networking/x25-iface.txt*/
 324 #define ISDN_NET_ENCAP_MAX_ENCAP  ISDN_NET_ENCAP_X25IFACE
 325 /* Facility which currently uses an ISDN-channel */
 326 #define ISDN_USAGE_NONE       0
 327 #define ISDN_USAGE_RAW        1
 328 #define ISDN_USAGE_MODEM      2
 329 #define ISDN_USAGE_NET        3
 330 #define ISDN_USAGE_VOICE      4
 331 #define ISDN_USAGE_FAX        5
 332 #define ISDN_USAGE_MASK       7 /* Mask to get plain usage */
 333 #define ISDN_USAGE_DISABLED  32 /* This bit is set, if channel is disabled */
 334 #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
 335 #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing  */
 336
 337 #define ISDN_MODEM_ANZREG    24        /* Number of Modem-Registers        */
 338 #define ISDN_MSNLEN          20
 339 #define ISDN_LMSNLEN         255 /* Length of tty's Listen-MSN string */
 340 #define ISDN_CMSGLEN         50  /* Length of CONNECT-Message to add for Modem */
 341
 342 typedef struct {
 343   char drvid[25];
 344   unsigned long arg;
 345 } isdn_ioctl_struct;
 346
 347 typedef struct {
 348   unsigned long isdndev;
 349   unsigned long atmodem[ISDN_MAX_CHANNELS];
 350   unsigned long info[ISDN_MAX_CHANNELS];
 351 } debugvar_addr;
 352
 353 typedef struct {
 354   char name[10];
 355   char phone[ISDN_MSNLEN];
 356   int  outgoing;
 357 } isdn_net_ioctl_phone;
 358
 359 #define NET_DV 0x05  /* Data version for isdn_net_ioctl_cfg   */
 360 #define TTY_DV 0x05  /* Data version for iprofd etc.          */
 361 #define INF_DV 0x01  /* Data version for /dev/isdninfo        */
 362
 363 typedef struct {
 364   char name[10];     /* Name of interface                     */
 365   char master[10];   /* Name of Master for Bundling           */
 366   char slave[10];    /* Name of Slave for Bundling            */
 367   char eaz[256];     /* EAZ/MSN                               */
 368   char drvid[25];    /* DriverId for Bindings                 */
 369   int  onhtime;      /* Hangup-Timeout                        */
 370   int  charge;       /* Charge-Units                          */
 371   int  l2_proto;     /* Layer-2 protocol                      */
 372   int  l3_proto;     /* Layer-3 protocol                      */
 373   int  p_encap;      /* Encapsulation                         */
 374   int  exclusive;    /* Channel, if bound exclusive           */
 375   int  dialmax;      /* Dial Retry-Counter                    */
 376   int  slavedelay;   /* Delay until slave starts up           */
 377   int  cbdelay;      /* Delay before Callback                 */
 378   int  chargehup;    /* Flag: Charge-Hangup                   */
 379   int  ihup;         /* Flag: Hangup-Timeout on incoming line */
 380   int  secure;       /* Flag: Secure                          */
 381   int  callback;     /* Flag: Callback                        */
 382   int  cbhup;        /* Flag: Reject Call before Callback     */
 383   int  pppbind;      /* ippp device for bindings              */
 384   int  chargeint;    /* Use fixed charge interval length      */
 385   int  triggercps;   /* BogoCPS needed for triggering slave   */
 386   int  dialtimeout;  /* Dial-Timeout                          */
 387   int  dialwait;     /* Time to wait after failed dial        */
 388   int  dialmode;     /* Flag: off / on / auto                 */
 389 } isdn_net_ioctl_cfg;
 390
 391 #define ISDN_NET_DIALMODE_MASK 0xC0  /* bits for status                   */
 392 #define  ISDN_NET_DM_OFF        0x00    /* this interface is stopped      */
 393 #define  ISDN_NET_DM_MANUAL     0x40    /* this interface is on (manual)  */
 394 #define  ISDN_NET_DM_AUTO       0x80    /* this interface is autodial     */
 395 #define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK)
 396
 397 #ifdef __KERNEL__
 398
 399 #include <linux/errno.h>
 400 #include <linux/fs.h>
 401 #include <linux/major.h>
 402 #include <asm/segment.h>
 403 #include <asm/io.h>
 404 #include <linux/kernel.h>
 405 #include <linux/signal.h>
 406 #include <linux/malloc.h>
 407 #include <linux/timer.h>
 408 #include <linux/wait.h>
 409 #include <linux/tty.h>
 410 #include <linux/tty_flip.h>
 411 #include <linux/serial_reg.h>
 412 #include <linux/fcntl.h>
 413 #include <linux/types.h>
 414 #include <linux/interrupt.h>
 415 #include <linux/ip.h>
 416 #include <linux/in.h>
 417 #include <linux/netdevice.h>
 418 #include <linux/etherdevice.h>
 419 #include <linux/skbuff.h>
 420 #include <linux/tcp.h>
 421
 422 #ifdef CONFIG_ISDN_PPP
 423
 424 #ifdef CONFIG_ISDN_PPP_VJ
 425 #  include <net/slhc_vj.h>
 426 #endif
 427
 428 #include <linux/ppp_defs.h>
 429 #include <linux/if_ppp.h>
 430 #include <linux/if_pppvar.h>
 431
 432 #include <linux/isdn_ppp.h>
 433 #endif
 434
 435 #ifdef CONFIG_ISDN_X25
 436 #  include <linux/concap.h>
 437 #endif
 438
 439 #include <linux/isdnif.h>
 440
 441
 442 #define ISDN_DRVIOCTL_MASK       0x7f  /* Mask for Device-ioctl */
 443
 444 /* Until now unused */
 445 #define ISDN_SERVICE_VOICE 1
 446 #define ISDN_SERVICE_AB    1<<1
 447 #define ISDN_SERVICE_X21   1<<2
 448 #define ISDN_SERVICE_G4    1<<3
 449 #define ISDN_SERVICE_BTX   1<<4
 450 #define ISDN_SERVICE_DFUE  1<<5
 451 #define ISDN_SERVICE_X25   1<<6
 452 #define ISDN_SERVICE_TTX   1<<7
 453 #define ISDN_SERVICE_MIXED 1<<8
 454 #define ISDN_SERVICE_FW    1<<9
 455 #define ISDN_SERVICE_GTEL  1<<10
 456 #define ISDN_SERVICE_BTXN  1<<11
 457 #define ISDN_SERVICE_BTEL  1<<12
 458
 459 /* Macros checking plain usage */
 460 #define USG_NONE(x)         ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
 461 #define USG_RAW(x)          ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
 462 #define USG_MODEM(x)        ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
 463 #define USG_VOICE(x)        ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)
 464 #define USG_NET(x)          ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
 465 #define USG_FAX(x)          ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX)
 466 #define USG_OUTGOING(x)     ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
 467 #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \
 468                              ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)     )
 469
 470 /* Timer-delays and scheduling-flags */
 471 #define ISDN_TIMER_RES         3                         /* Main Timer-Resolution   */
 472 #define ISDN_TIMER_02SEC       (HZ/(ISDN_TIMER_RES+1)/5) /* Slow-Timer1 .2 sec      */
 473 #define ISDN_TIMER_1SEC        (HZ/(ISDN_TIMER_RES+1))   /* Slow-Timer2 1 sec       */
 474 #define ISDN_TIMER_RINGING     5 /* tty RINGs = ISDN_TIMER_1SEC * this factor       */
 475 #define ISDN_TIMER_KEEPINT    10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */
 476 #define ISDN_TIMER_MODEMREAD   1
 477 #define ISDN_TIMER_MODEMPLUS   2
 478 #define ISDN_TIMER_MODEMRING   4
 479 #define ISDN_TIMER_MODEMXMIT   8
 480 #define ISDN_TIMER_NETDIAL    16
 481 #define ISDN_TIMER_NETHANGUP  32
 482 #define ISDN_TIMER_IPPP       64
 483 #define ISDN_TIMER_KEEPALIVE 128 /* Cisco-Keepalive */
 484 #define ISDN_TIMER_CARRIER   256 /* Wait for Carrier */
 485 #define ISDN_TIMER_FAST      (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
 486                               ISDN_TIMER_MODEMXMIT)
 487 #define ISDN_TIMER_SLOW      (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
 488                               ISDN_TIMER_NETDIAL | ISDN_TIMER_KEEPALIVE | \
 489                               ISDN_TIMER_CARRIER)
 490
 491 /* Timeout-Values for isdn_net_dial() */
 492 #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
 493 #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
 494 #define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
 495
 496 /* GLOBAL_FLAGS */
 497 #define ISDN_GLOBAL_STOPPED 1
 498
 499 /*=================== Start of ip-over-ISDN stuff =========================*/
 500
 501 /* Feature- and status-flags for a net-interface */
 502 #define ISDN_NET_CONNECTED  0x01       /* Bound to ISDN-Channel             */
 503 #define ISDN_NET_SECURE     0x02       /* Accept calls from phonelist only  */
 504 #define ISDN_NET_CALLBACK   0x04       /* activate callback                 */
 505 #define ISDN_NET_CBHUP      0x08       /* hangup before callback            */
 506 #define ISDN_NET_CBOUT      0x10       /* remote machine does callback      */
 507 #if 0
 508 /* Unused??? */
 509 #define ISDN_NET_CLONE      0x08       /* clone a tmp interface when called */
 510 #define ISDN_NET_TMP        0x10       /* tmp interface until getting an IP */
 511 #define ISDN_NET_DYNAMIC    0x20       /* this link is dynamically allocated */
 512 #endif
 513
 514 #define ISDN_NET_MAGIC      0x49344C02 /* for paranoia-checking             */
 515
 516 /* Phone-list-element */
 517 typedef struct {
 518   void *next;
 519   char num[ISDN_MSNLEN];
 520 } isdn_net_phone;
 521
 522 /*
 523    Principles when extending structures for generic encapsulation protocol
 524    ("concap") support:
 525    - Stuff which is hardware specific (here i4l-specific) goes in
 526      the netdev -> local structure (here: isdn_net_local)
 527    - Stuff which is encapsulation protocol specific goes in the structure
 528      which holds the linux device structure (here: isdn_net_device)
 529 */
 530
 531 /* Local interface-data */
 532 typedef struct isdn_net_local_s {
 533   ulong                  magic;
 534   char                   name[10];     /* Name of device                   */
 535   struct enet_statistics stats;        /* Ethernet Statistics              */
 536   int                    isdn_device;  /* Index to isdn-device             */
 537   int                    isdn_channel; /* Index to isdn-channel            */
 538   int                    ppp_slot;     /* PPPD device slot number          */
 539   int                    pre_device;   /* Preselected isdn-device          */
 540   int                    pre_channel;  /* Preselected isdn-channel         */
 541   int                    exclusive;    /* If non-zero idx to reserved chan.*/
 542   int                    flags;        /* Connection-flags                 */
 543   int                    dialretry;    /* Counter for Dialout-retries      */
 544   int                    dialmax;      /* Max. Number of Dial-retries      */
 545   int                    cbdelay;      /* Delay before Callback starts     */
 546   int                    dtimer;       /* Timeout-counter for dialing      */
 547   char                   msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
 548   u_char                 cbhup;        /* Flag: Reject Call before Callback*/
 549   u_char                 dialstate;    /* State for dialing                */
 550   u_char                 p_encap;      /* Packet encapsulation             */
 551                                        /*   0 = Ethernet over ISDN         */
 552                                        /*   1 = RAW-IP                     */
 553                                        /*   2 = IP with type field         */
 554   u_char                 l2_proto;     /* Layer-2-protocol                 */
 555                                        /* See ISDN_PROTO_L2..-constants in */
 556                                        /* isdnif.h                         */
 557                                        /*   0 = X75/LAPB with I-Frames     */
 558                                        /*   1 = X75/LAPB with UI-Frames    */
 559                                        /*   2 = X75/LAPB with BUI-Frames   */
 560                                        /*   3 = HDLC                       */
 561   u_char                 l3_proto;     /* Layer-3-protocol                 */
 562                                        /* See ISDN_PROTO_L3..-constants in */
 563                                        /* isdnif.h                         */
 564                                        /*   0 = Transparent                */
 565   int                    huptimer;     /* Timeout-counter for auto-hangup  */
 566   int                    charge;       /* Counter for charging units       */
 567   int                    chargetime;   /* Timer for Charging info          */
 568   int                    hupflags;     /* Flags for charge-unit-hangup:    */
 569                                        /* bit0: chargeint is invalid       */
 570                                        /* bit1: Getting charge-interval    */
 571                                        /* bit2: Do charge-unit-hangup      */
 572                                        /* bit3: Do hangup even on incoming */
 573   int                    outgoing;     /* Flag: outgoing call              */
 574   int                    onhtime;      /* Time to keep link up             */
 575   int                    chargeint;    /* Interval between charge-infos    */
 576   int                    onum;         /* Flag: at least 1 outgoing number */
 577   int                    cps;          /* current speed of this interface  */
 578   int                    transcount;   /* byte-counter for cps-calculation */
 579   int                    sqfull;       /* Flag: netdev-queue overloaded    */
 580   ulong                  sqfull_stamp; /* Start-Time of overload           */
 581   ulong                  slavedelay;   /* Dynamic bundling delaytime       */
 582   int                    triggercps;   /* BogoCPS needed for trigger slave */
 583   struct net_device      *srobin;      /* Ptr to Master device for slaves  */
 584   isdn_net_phone         *phone[2];    /* List of remote-phonenumbers      */
 585                                        /* phone[0] = Incoming Numbers      */
 586                                        /* phone[1] = Outgoing Numbers      */
 587   isdn_net_phone         *dial;        /* Pointer to dialed number         */
 588   struct net_device      *master;      /* Ptr to Master device for slaves  */
 589   struct net_device      *slave;       /* Ptr to Slave device for masters  */
 590   struct isdn_net_local_s *next;       /* Ptr to next link in bundle       */
 591   struct isdn_net_local_s *last;       /* Ptr to last link in bundle       */
 592   struct isdn_net_dev_s  *netdev;      /* Ptr to netdev                    */
 593   struct sk_buff         *first_skb;   /* Ptr to skb that triggers dialing */
 594   struct sk_buff         *sav_skb;     /* Ptr to skb, rejected by LL-driver*/
 595                                        /* Ptr to orig. hard_header_cache   */
 596   int                    (*org_hhc)(
 597                                     struct neighbour *neigh,
 598                                     struct hh_cache *hh);
 599                                        /* Ptr to orig. header_cache_update */
 600   void                   (*org_hcu)(struct hh_cache *,
 601                                     struct net_device *,
 602                                     unsigned char *);
 603   int  pppbind;                        /* ippp device for bindings         */
 604   int                                   dialtimeout;    /* How long shall we try on dialing? (jiffies) */
 605   int                                   dialwait;               /* How long shall we wait after failed attempt? (jiffies) */
 606   ulong                                 dialstarted;    /* jiffies of first dialing-attempt */
 607   ulong                                 dialwait_timer; /* jiffies of earliest next dialing-attempt */
 608   int                                   huptimeout;             /* How long will the connection be up? (seconds) */
 609 #ifdef CONFIG_ISDN_X25
 610   struct concap_device_ops *dops;      /* callbacks used by encapsulator   */
 611 #endif
 612   int  cisco_loop;                     /* Loop counter for Cisco-SLARP     */
 613   ulong cisco_myseq;                   /* Local keepalive seq. for Cisco   */
 614   ulong cisco_yourseq;                 /* Remote keepalive seq. for Cisco  */
 615 } isdn_net_local;
 616
 617 /* the interface itself */
 618 typedef struct isdn_net_dev_s {
 619   isdn_net_local *local;
 620   isdn_net_local *queue;
 621   void           *next;                /* Pointer to next isdn-interface   */
 622   struct net_device dev;               /* interface to upper levels        */
 623 #ifdef CONFIG_ISDN_PPP
 624   struct mpqueue *mp_last;
 625   struct ippp_bundle ib;
 626 #endif
 627 #ifdef CONFIG_ISDN_X25
 628   struct concap_proto  *cprot; /* connection oriented encapsulation protocol */
 629 #endif
 630
 631 } isdn_net_dev;
 632
 633 /*===================== End of ip-over-ISDN stuff ===========================*/
 634
 635 /*======================= Start of ISDN-tty stuff ===========================*/
 636
 637 #define ISDN_ASYNC_MAGIC          0x49344C01 /* for paranoia-checking        */
 638 #define ISDN_ASYNC_INITIALIZED    0x80000000 /* port was initialized         */
 639 #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active       */
 640 #define ISDN_ASYNC_NORMAL_ACTIVE  0x20000000 /* Normal device active         */
 641 #define ISDN_ASYNC_CLOSING        0x08000000 /* Serial port is closing       */
 642 #define ISDN_ASYNC_CTS_FLOW       0x04000000 /* Do CTS flow control          */
 643 #define ISDN_ASYNC_CHECK_CD       0x02000000 /* i.e., CLOCAL                 */
 644 #define ISDN_ASYNC_HUP_NOTIFY         0x0001 /* Notify tty on hangups/closes */
 645 #define ISDN_ASYNC_SESSION_LOCKOUT    0x0100 /* Lock cua opens on session    */
 646 #define ISDN_ASYNC_PGRP_LOCKOUT       0x0200 /* Lock cua opens on pgrp       */
 647 #define ISDN_ASYNC_CALLOUT_NOHUP      0x0400 /* No hangup for cui            */
 648 #define ISDN_ASYNC_SPLIT_TERMIOS      0x0008 /* Sep. termios for dialin/out  */
 649 #define ISDN_SERIAL_XMIT_SIZE           1024 /* Default bufsize for write    */
 650 #define ISDN_SERIAL_XMIT_MAX            4000 /* Maximum bufsize for write    */
 651 #define ISDN_SERIAL_TYPE_NORMAL            1
 652 #define ISDN_SERIAL_TYPE_CALLOUT           2
 653
 654 #ifdef CONFIG_ISDN_AUDIO
 655 /* For using sk_buffs with audio we need some private variables
 656  * within each sk_buff. For this purpose, we declare a struct here,
 657  * and put it always at skb->head. A few macros help accessing the
 658  * variables. Of course, we need to check skb_headroom prior to
 659  * any access.
 660  */
 661 typedef struct isdn_audio_skb {
 662   unsigned short dle_count;
 663   unsigned char  lock;
 664 } isdn_audio_skb;
 665
 666 #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_skb*)skb->head)->dle_count)
 667 #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_skb*)skb->head)->lock)
 668 #endif
 669
 670 /* Private data of AT-command-interpreter */
 671 typedef struct atemu {
 672         u_char       profile[ISDN_MODEM_ANZREG]; /* Modem-Regs. Profile 0              */
 673         u_char       mdmreg[ISDN_MODEM_ANZREG];  /* Modem-Registers                    */
 674         char         pmsn[ISDN_MSNLEN];          /* EAZ/MSNs Profile 0                 */
 675         char         msn[ISDN_MSNLEN];           /* EAZ/MSN                            */
 676         char         plmsn[ISDN_LMSNLEN];        /* Listening MSNs Profile 0           */
 677         char         lmsn[ISDN_LMSNLEN];         /* Listening MSNs                     */
 678         char         cpn[ISDN_MSNLEN];           /* CalledPartyNumber on incoming call */
 679         char         connmsg[ISDN_CMSGLEN];      /* CONNECT-Msg from HL-Driver         */
 680 #ifdef CONFIG_ISDN_AUDIO
 681         u_char       vpar[10];                   /* Voice-parameters                   */
 682         int          lastDLE;                    /* Flag for voice-coding: DLE seen    */
 683 #endif
 684         int          mdmcmdl;                    /* Length of Modem-Commandbuffer      */
 685         int          pluscount;                  /* Counter for +++ sequence           */
 686         int          lastplus;                   /* Timestamp of last +                */
 687         int          carrierwait;                /* Seconds of carrier waiting         */
 688         char         mdmcmd[255];                /* Modem-Commandbuffer                */
 689         unsigned int charge;                     /* Charge units of current connection */
 690 } atemu;
 691
 692 /* Private data (similar to async_struct in <linux/serial.h>) */
 693 typedef struct modem_info {
 694   int                   magic;
 695   int                   flags;           /* defined in tty.h               */
 696   int                   x_char;          /* xon/xoff character             */
 697   int                   mcr;             /* Modem control register         */
 698   int                   msr;             /* Modem status register          */
 699   int                   lsr;             /* Line status register           */
 700   int                   line;
 701   int                   count;           /* # of fd on device              */
 702   int                   blocked_open;    /* # of blocked opens             */
 703   long                  session;         /* Session of opening process     */
 704   long                  pgrp;            /* pgrp of opening process        */
 705   int                   online;          /* 1 = B-Channel is up, drop data */
 706                                          /* 2 = B-Channel is up, deliver d.*/
 707   int                   dialing;         /* Dial in progress or ATA        */
 708   int                   rcvsched;        /* Receive needs schedule         */
 709   int                   isdn_driver;     /* Index to isdn-driver           */
 710   int                   isdn_channel;    /* Index to isdn-channel          */
 711   int                   drv_index;       /* Index to dev->usage            */
 712   int                   ncarrier;        /* Flag: schedule NO CARRIER      */
 713   unsigned char         last_cause[8];   /* Last cause message             */
 714   unsigned char         last_num[ISDN_MSNLEN];
 715                                          /* Last phone-number              */
 716   unsigned char         last_l2;         /* Last layer-2 protocol          */
 717   unsigned char         last_si;         /* Last service                   */
 718   unsigned char         last_lhup;       /* Last hangup local?             */
 719   unsigned char         last_dir;        /* Last direction (in or out)     */
 720   struct timer_list     nc_timer;        /* Timer for delayed NO CARRIER   */
 721   int                   send_outstanding;/* # of outstanding send-requests */
 722   int                   xmit_size;       /* max. # of chars in xmit_buf    */
 723   int                   xmit_count;      /* # of chars in xmit_buf         */
 724   unsigned char         *xmit_buf;       /* transmit buffer                */
 725   struct sk_buff_head   xmit_queue;      /* transmit queue                 */
 726   atomic_t              xmit_lock;       /* Semaphore for isdn_tty_write   */
 727 #ifdef CONFIG_ISDN_AUDIO
 728   int                   vonline;         /* Voice-channel status           */
 729                                          /* Bit 0 = recording              */
 730                                          /* Bit 1 = playback               */
 731                                          /* Bit 2 = playback, DLE-ETX seen */
 732   struct sk_buff_head   dtmf_queue;      /* queue for dtmf results         */
 733   void                  *adpcms;         /* state for adpcm decompression  */
 734   void                  *adpcmr;         /* state for adpcm compression    */
 735   void                  *dtmf_state;     /* state for dtmf decoder         */
 736   void                  *silence_state;  /* state for silence detection    */
 737 #endif
 738 #ifdef CONFIG_ISDN_TTY_FAX
 739   struct T30_s          *fax;            /* T30 Fax Group 3 data/interface */
 740   int                   faxonline;       /* Fax-channel status             */
 741 #endif
 742   struct tty_struct     *tty;            /* Pointer to corresponding tty   */
 743   atemu                 emu;             /* AT-emulator data               */
 744   struct termios        normal_termios;  /* For saving termios structs     */
 745   struct termios        callout_termios;
 746 #ifdef COMPAT_HAS_NEW_WAITQ
 747   wait_queue_head_t     open_wait, close_wait;
 748 #else
 749   struct wait_queue     *open_wait;
 750   struct wait_queue     *close_wait;
 751 #endif
 752   struct semaphore      write_sem;
 753 } modem_info;
 754
 755 #define ISDN_MODEM_WINSIZE 8
 756
 757 /* Description of one ISDN-tty */
 758 typedef struct {
 759   int                refcount;                     /* Number of opens        */
 760   struct tty_driver  tty_modem;                    /* tty-device             */
 761   struct tty_driver  cua_modem;                    /* cua-device             */
 762   struct tty_struct  *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
 763   struct termios     *modem_termios[ISDN_MAX_CHANNELS];
 764   struct termios     *modem_termios_locked[ISDN_MAX_CHANNELS];
 765   modem_info         info[ISDN_MAX_CHANNELS];      /* Private data           */
 766 } modem;
 767
 768 /*======================= End of ISDN-tty stuff ============================*/
 769
 770 /*======================== Start of V.110 stuff ============================*/
 771 #define V110_BUFSIZE 1024
 772
 773 typedef struct {
 774         int nbytes;                    /* 1 Matrixbyte -> nbytes in stream     */
 775         int nbits;                     /* Number of used bits in streambyte    */
 776         unsigned char key;             /* Bitmask in stream eg. 11 (nbits=2)   */
 777         int decodelen;                 /* Amount of data in decodebuf          */
 778         int SyncInit;                  /* Number of sync frames to send        */
 779         unsigned char *OnlineFrame;    /* Precalculated V110 idle frame        */
 780         unsigned char *OfflineFrame;   /* Precalculated V110 sync Frame        */
 781         int framelen;                  /* Length of frames                     */
 782         int skbuser;                   /* Number of unacked userdata skbs      */
 783         int skbidle;                   /* Number of unacked idle/sync skbs     */
 784         int introducer;                /* Local vars for decoder               */
 785         int dbit;
 786         unsigned char b;
 787         int skbres;                    /* space to reserve in outgoing skb     */
 788         int maxsize;                   /* maxbufsize of lowlevel driver        */
 789         unsigned char *encodebuf;      /* temporary buffer for encoding        */
 790         unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices     */
 791 } isdn_v110_stream;
 792
 793 /*========================= End of V.110 stuff =============================*/
 794
 795 /*======================= Start of general stuff ===========================*/
 796
 797 typedef struct {
 798         char *next;
 799         char *private;
 800 } infostruct;
 801
 802 typedef struct isdn_module {
 803         struct isdn_module *prev;
 804         struct isdn_module *next;
 805         char *name;
 806         int (*get_free_channel)(int, int, int, int, int);
 807         int (*free_channel)(int, int, int);
 808         int (*status_callback)(isdn_ctrl *);
 809         int (*command)(isdn_ctrl *);
 810         int (*receive_callback)(int, int, struct sk_buff *);
 811         int (*writebuf_skb)(int, int, int, struct sk_buff *);
 812         int (*net_start_xmit)(struct sk_buff *, struct net_device *);
 813         int (*net_receive)(struct net_device *, struct sk_buff *);
 814         int (*net_open)(struct net_device *);
 815         int (*net_close)(struct net_device *);
 816         int priority;
 817 } isdn_module;
 818
 819 #define DRV_FLAG_RUNNING 1
 820 #define DRV_FLAG_REJBUS  2
 821 #define DRV_FLAG_LOADED  4
 822
 823 /* Description of hardware-level-driver */
 824 typedef struct {
 825         ulong               online;           /* Channel-Online flags             */
 826         ulong               flags;            /* Misc driver Flags                */
 827         int                 locks;            /* Number of locks for this driver  */
 828         int                 channels;         /* Number of channels               */
 829 #ifdef COMPAT_HAS_NEW_WAITQ
 830         wait_queue_head_t   st_waitq;         /* Wait-Queue for status-read's     */
 831 #else
 832         struct wait_queue  *st_waitq;         /* Wait-Queue for status-read's     */
 833 #endif
 834         int                 maxbufsize;       /* Maximum Buffersize supported     */
 835         unsigned long       pktcount;         /* Until now: unused                */
 836         int                 stavail;          /* Chars avail on Status-device     */
 837         isdn_if            *interface;        /* Interface to driver              */
 838         int                *rcverr;           /* Error-counters for B-Ch.-receive */
 839         int                *rcvcount;         /* Byte-counters for B-Ch.-receive  */
 840 #ifdef CONFIG_ISDN_AUDIO
 841         unsigned long      DLEflag;           /* Flags: Insert DLE at next read   */
 842 #endif
 843         struct sk_buff_head *rpqueue;         /* Pointers to start of Rcv-Queue   */
 844 #ifdef COMPAT_HAS_NEW_WAITQ
 845         wait_queue_head_t  *rcv_waitq;       /* Wait-Queues for B-Channel-Reads  */
 846         wait_queue_head_t  *snd_waitq;       /* Wait-Queue for B-Channel-Send's  */
 847 #else
 848         struct wait_queue  **rcv_waitq;       /* Wait-Queues for B-Channel-Reads  */
 849         struct wait_queue  **snd_waitq;       /* Wait-Queue for B-Channel-Send's  */
 850 #endif
 851         char               msn2eaz[10][ISDN_MSNLEN];  /* Mapping-Table MSN->EAZ   */
 852 } driver;
 853
 854 /* Main driver-data */
 855 typedef struct isdn_devt {
 856         unsigned short    flags;                       /* Bitmapped Flags:           */
 857         /*                            */
 858         int               drivers;                     /* Current number of drivers  */
 859         int               channels;                    /* Current number of channels */
 860         int               net_verbose;               /* Verbose-Flag               */
 861         int               modempoll;                   /* Flag: tty-read active      */
 862         int               tflags;                    /* Timer-Flags:               */
 863         /*  see ISDN_TIMER_..defines  */
 864         int               global_flags;
 865         infostruct        *infochain;                /* List of open info-devs.    */
 866 #ifdef COMPAT_HAS_NEW_WAITQ
 867         wait_queue_head_t info_waitq;               /* Wait-Queue for isdninfo    */
 868 #else
 869         struct wait_queue *info_waitq;               /* Wait-Queue for isdninfo    */
 870 #endif
 871         struct timer_list timer;                       /* Misc.-function Timer       */
 872         int               chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel  */
 873         int               drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index    */
 874         int               usage[ISDN_MAX_CHANNELS];  /* Used by tty/ip/voice       */
 875         char              num[ISDN_MAX_CHANNELS][ISDN_MSNLEN];
 876         /* Remote number of active ch.*/
 877         int               m_idx[ISDN_MAX_CHANNELS];  /* Index for mdm....          */
 878         driver            *drv[ISDN_MAX_DRIVERS];    /* Array of drivers           */
 879         isdn_net_dev      *netdev;                     /* Linked list of net-if's    */
 880         char              drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID                 */
 881         struct task_struct *profd;                   /* For iprofd                 */
 882         modem             mdm;                 /* tty-driver-data            */
 883         isdn_net_dev      *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers     */
 884         isdn_net_dev      *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers   */
 885         ulong             ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes  */
 886         ulong             obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes  */
 887         int               v110emu[ISDN_MAX_CHANNELS];/* V.110 emulator-mode 0=none */
 888         atomic_t          v110use[ISDN_MAX_CHANNELS];/* Usage-Semaphore for stream */
 889         isdn_v110_stream  *v110[ISDN_MAX_CHANNELS];  /* V.110 private data         */
 890         struct semaphore  sem;                       /* serialize list access*/
 891         isdn_module       *modules;
 892 } isdn_dev;
 893
 894 extern isdn_dev *dev;
 895
 896
 897 /* Utility-Macros */
 898 #define MIN(a,b) ((a<b)?a:b)
 899 #define MAX(a,b) ((a>b)?a:b)
 900 #endif /* __KERNEL__ */
 901 #endif /* isdn_h */