1 /* $Id: isdn.h,v 1.1.4.1 2001/11/20 14:19:38 kai 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 */ 101 102 typedef struct { 103 char drvid[25]; 104 unsigned long arg; 105 } isdn_ioctl_struct; 106 107 typedef struct { 108 char name[10]; 109 char phone[ISDN_MSNLEN]; 110 int outgoing; 111 } isdn_net_ioctl_phone; 112 113 typedef 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/config.h> 150 #include <linux/errno.h> 151 #include <linux/fs.h> 152 #include <linux/major.h> 153 #include <asm/segment.h> 154 #include <asm/io.h> 155 #include <linux/kernel.h> 156 #include <linux/signal.h> 157 #include <linux/slab.h> 158 #include <linux/timer.h> 159 #include <linux/wait.h> 160 #include <linux/tty.h> 161 #include <linux/tty_flip.h> 162 #include <linux/serial_reg.h> 163 #include <linux/fcntl.h> 164 #include <linux/types.h> 165 #include <linux/interrupt.h> 166 #include <linux/ip.h> 167 #include <linux/in.h> 168 #include <linux/netdevice.h> 169 #include <linux/etherdevice.h> 170 #include <linux/skbuff.h> 171 #include <linux/tcp.h> 172 173 #define ISDN_TTY_MAJOR 43 174 #define ISDN_TTYAUX_MAJOR 44 175 #define ISDN_MAJOR 45 176 177 /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for 178 * physical Channel-Mapping, so they MUST NOT be changed without changing 179 * the correspondent code in isdn.c 180 */ 181 182 #define ISDN_MINOR_B 0 183 #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1) 184 #define ISDN_MINOR_CTRL 64 185 #define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1)) 186 #define ISDN_MINOR_PPP 128 187 #define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1)) 188 #define ISDN_MINOR_STATUS 255 189 190 #ifdef CONFIG_ISDN_PPP 191 192 #ifdef CONFIG_ISDN_PPP_VJ 193 # include <net/slhc_vj.h> 194 #endif 195 196 #include <linux/ppp_defs.h> 197 #include <linux/if_ppp.h> 198 #include <linux/if_pppvar.h> 199 200 #include <linux/isdn_ppp.h> 201 #endif 202 203 #ifdef CONFIG_ISDN_X25 204 # include <linux/concap.h> 205 #endif 206 207 #ifdef CONFIG_DEVFS_FS 208 # include <linux/devfs_fs_kernel.h> 209 #endif 210 211 #include <linux/isdnif.h> 212 213 #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */ 214 215 /* Until now unused */ 216 #define ISDN_SERVICE_VOICE 1 217 #define ISDN_SERVICE_AB 1<<1 218 #define ISDN_SERVICE_X21 1<<2 219 #define ISDN_SERVICE_G4 1<<3 220 #define ISDN_SERVICE_BTX 1<<4 221 #define ISDN_SERVICE_DFUE 1<<5 222 #define ISDN_SERVICE_X25 1<<6 223 #define ISDN_SERVICE_TTX 1<<7 224 #define ISDN_SERVICE_MIXED 1<<8 225 #define ISDN_SERVICE_FW 1<<9 226 #define ISDN_SERVICE_GTEL 1<<10 227 #define ISDN_SERVICE_BTXN 1<<11 228 #define ISDN_SERVICE_BTEL 1<<12 229 230 /* Macros checking plain usage */ 231 #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE) 232 #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW) 233 #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) 234 #define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) 235 #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET) 236 #define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX) 237 #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING) 238 #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \ 239 ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) ) 240 241 /* Timer-delays and scheduling-flags */ 242 #define ISDN_TIMER_RES 4 /* Main Timer-Resolution */ 243 #define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */ 244 #define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 1 sec */ 245 #define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */ 246 #define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */ 247 #define ISDN_TIMER_MODEMREAD 1 248 #define ISDN_TIMER_MODEMPLUS 2 249 #define ISDN_TIMER_MODEMRING 4 250 #define ISDN_TIMER_MODEMXMIT 8 251 #define ISDN_TIMER_NETDIAL 16 252 #define ISDN_TIMER_NETHANGUP 32 253 #define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */ 254 #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \ 255 ISDN_TIMER_MODEMXMIT) 256 #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \ 257 ISDN_TIMER_NETDIAL | ISDN_TIMER_CARRIER) 258 259 /* Timeout-Values for isdn_net_dial() */ 260 #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 261 #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 262 #define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) 263 264 /* GLOBAL_FLAGS */ 265 #define ISDN_GLOBAL_STOPPED 1 266 267 /*=================== Start of ip-over-ISDN stuff =========================*/ 268 269 /* Feature- and status-flags for a net-interface */ 270 #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */ 271 #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */ 272 #define ISDN_NET_CALLBACK 0x04 /* activate callback */ 273 #define ISDN_NET_CBHUP 0x08 /* hangup before callback */ 274 #define ISDN_NET_CBOUT 0x10 /* remote machine does callback */ 275 276 #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */ 277 278 /* Phone-list-element */ 279 typedef struct { 280 void *next; 281 char num[ISDN_MSNLEN]; 282 } isdn_net_phone; 283 284 /* 285 Principles when extending structures for generic encapsulation protocol 286 ("concap") support: 287 - Stuff which is hardware specific (here i4l-specific) goes in 288 the netdev -> local structure (here: isdn_net_local) 289 - Stuff which is encapsulation protocol specific goes in the structure 290 which holds the linux device structure (here: isdn_net_device) 291 */ 292 293 /* Local interface-data */ 294 typedef struct isdn_net_local_s { 295 ulong magic; 296 char name[10]; /* Name of device */ 297 struct net_device_stats stats; /* Ethernet Statistics */ 298 int isdn_device; /* Index to isdn-device */ 299 int isdn_channel; /* Index to isdn-channel */ 300 int ppp_slot; /* PPPD device slot number */ 301 int pre_device; /* Preselected isdn-device */ 302 int pre_channel; /* Preselected isdn-channel */ 303 int exclusive; /* If non-zero idx to reserved chan.*/ 304 int flags; /* Connection-flags */ 305 int dialretry; /* Counter for Dialout-retries */ 306 int dialmax; /* Max. Number of Dial-retries */ 307 int cbdelay; /* Delay before Callback starts */ 308 int dtimer; /* Timeout-counter for dialing */ 309 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */ 310 u_char cbhup; /* Flag: Reject Call before Callback*/ 311 u_char dialstate; /* State for dialing */ 312 u_char p_encap; /* Packet encapsulation */ 313 /* 0 = Ethernet over ISDN */ 314 /* 1 = RAW-IP */ 315 /* 2 = IP with type field */ 316 u_char l2_proto; /* Layer-2-protocol */ 317 /* See ISDN_PROTO_L2..-constants in */ 318 /* isdnif.h */ 319 /* 0 = X75/LAPB with I-Frames */ 320 /* 1 = X75/LAPB with UI-Frames */ 321 /* 2 = X75/LAPB with BUI-Frames */ 322 /* 3 = HDLC */ 323 u_char l3_proto; /* Layer-3-protocol */ 324 /* See ISDN_PROTO_L3..-constants in */ 325 /* isdnif.h */ 326 /* 0 = Transparent */ 327 int huptimer; /* Timeout-counter for auto-hangup */ 328 int charge; /* Counter for charging units */ 329 ulong chargetime; /* Timer for Charging info */ 330 int hupflags; /* Flags for charge-unit-hangup: */ 331 /* bit0: chargeint is invalid */ 332 /* bit1: Getting charge-interval */ 333 /* bit2: Do charge-unit-hangup */ 334 /* bit3: Do hangup even on incoming */ 335 int outgoing; /* Flag: outgoing call */ 336 int onhtime; /* Time to keep link up */ 337 int chargeint; /* Interval between charge-infos */ 338 int onum; /* Flag: at least 1 outgoing number */ 339 int cps; /* current speed of this interface */ 340 int transcount; /* byte-counter for cps-calculation */ 341 int sqfull; /* Flag: netdev-queue overloaded */ 342 ulong sqfull_stamp; /* Start-Time of overload */ 343 ulong slavedelay; /* Dynamic bundling delaytime */ 344 int triggercps; /* BogoCPS needed for trigger slave */ 345 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */ 346 /* phone[0] = Incoming Numbers */ 347 /* phone[1] = Outgoing Numbers */ 348 isdn_net_phone *dial; /* Pointer to dialed number */ 349 struct net_device *master; /* Ptr to Master device for slaves */ 350 struct net_device *slave; /* Ptr to Slave device for masters */ 351 struct isdn_net_local_s *next; /* Ptr to next link in bundle */ 352 struct isdn_net_local_s *last; /* Ptr to last link in bundle */ 353 struct isdn_net_dev_s *netdev; /* Ptr to netdev */ 354 struct sk_buff_head super_tx_queue; /* List of supervisory frames to */ 355 /* be transmitted asap */ 356 atomic_t frame_cnt; /* number of frames currently */ 357 /* queued in HL driver */ 358 /* Ptr to orig. hard_header_cache */ 359 spinlock_t xmit_lock; /* used to protect the xmit path of */ 360 /* a particular channel (including */ 361 /* the frame_cnt */ 362 363 int (*org_hhc)( 364 struct neighbour *neigh, 365 struct hh_cache *hh); 366 /* Ptr to orig. header_cache_update */ 367 void (*org_hcu)(struct hh_cache *, 368 struct net_device *, 369 unsigned char *); 370 int pppbind; /* ippp device for bindings */ 371 int dialtimeout; /* How long shall we try on dialing? (jiffies) */ 372 int dialwait; /* How long shall we wait after failed attempt? (jiffies) */ 373 ulong dialstarted; /* jiffies of first dialing-attempt */ 374 ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */ 375 int huptimeout; /* How long will the connection be up? (seconds) */ 376 #ifdef CONFIG_ISDN_X25 377 struct concap_device_ops *dops; /* callbacks used by encapsulator */ 378 #endif 379 /* use an own struct for that in later versions */ 380 ulong cisco_myseq; /* Local keepalive seq. for Cisco */ 381 ulong cisco_mineseen; /* returned keepalive seq. from remote */ 382 ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */ 383 int cisco_keepalive_period; /* keepalive period */ 384 ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */ 385 char cisco_line_state; /* state of line according to keepalive packets */ 386 char cisco_debserint; /* debugging flag of cisco hdlc with slarp */ 387 struct timer_list cisco_timer; 388 struct tq_struct tqueue; 389 } isdn_net_local; 390 391 /* the interface itself */ 392 typedef struct isdn_net_dev_s { 393 isdn_net_local *local; 394 isdn_net_local *queue; /* circular list of all bundled 395 channels, which are currently 396 online */ 397 spinlock_t queue_lock; /* lock to protect queue */ 398 void *next; /* Pointer to next isdn-interface */ 399 struct net_device dev; /* interface to upper levels */ 400 #ifdef CONFIG_ISDN_PPP 401 ippp_bundle * pb; /* pointer to the common bundle structure 402 * with the per-bundle data */ 403 #endif 404 #ifdef CONFIG_ISDN_X25 405 struct concap_proto *cprot; /* connection oriented encapsulation protocol */ 406 #endif 407 408 } isdn_net_dev; 409 410 /*===================== End of ip-over-ISDN stuff ===========================*/ 411 412 /*======================= Start of ISDN-tty stuff ===========================*/ 413 414 #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */ 415 #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */ 416 #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */ 417 #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */ 418 #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */ 419 #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */ 420 #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */ 421 #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */ 422 #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */ 423 #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */ 424 #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */ 425 #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */ 426 #define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */ 427 #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */ 428 #define ISDN_SERIAL_TYPE_NORMAL 1 429 #define ISDN_SERIAL_TYPE_CALLOUT 2 430 431 #ifdef CONFIG_ISDN_AUDIO 432 /* For using sk_buffs with audio we need some private variables 433 * within each sk_buff. For this purpose, we declare a struct here, 434 * and put it always at skb->head. A few macros help accessing the 435 * variables. Of course, we need to check skb_headroom prior to 436 * any access. 437 */ 438 typedef struct isdn_audio_skb { 439 unsigned short dle_count; 440 unsigned char lock; 441 } isdn_audio_skb; 442 443 #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_skb*)skb->head)->dle_count) 444 #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_skb*)skb->head)->lock) 445 #endif 446 447 /* Private data of AT-command-interpreter */ 448 typedef struct atemu { 449 u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */ 450 u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */ 451 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */ 452 char msn[ISDN_MSNLEN]; /* EAZ/MSN */ 453 char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */ 454 char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */ 455 char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */ 456 char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */ 457 #ifdef CONFIG_ISDN_AUDIO 458 u_char vpar[10]; /* Voice-parameters */ 459 int lastDLE; /* Flag for voice-coding: DLE seen */ 460 #endif 461 int mdmcmdl; /* Length of Modem-Commandbuffer */ 462 int pluscount; /* Counter for +++ sequence */ 463 int lastplus; /* Timestamp of last + */ 464 int carrierwait; /* Seconds of carrier waiting */ 465 char mdmcmd[255]; /* Modem-Commandbuffer */ 466 unsigned int charge; /* Charge units of current connection */ 467 } atemu; 468 469 /* Private data (similar to async_struct in <linux/serial.h>) */ 470 typedef struct modem_info { 471 int magic; 472 int flags; /* defined in tty.h */ 473 int x_char; /* xon/xoff character */ 474 int mcr; /* Modem control register */ 475 int msr; /* Modem status register */ 476 int lsr; /* Line status register */ 477 int line; 478 int count; /* # of fd on device */ 479 int blocked_open; /* # of blocked opens */ 480 long session; /* Session of opening process */ 481 long pgrp; /* pgrp of opening process */ 482 int online; /* 1 = B-Channel is up, drop data */ 483 /* 2 = B-Channel is up, deliver d.*/ 484 int dialing; /* Dial in progress or ATA */ 485 int rcvsched; /* Receive needs schedule */ 486 int isdn_driver; /* Index to isdn-driver */ 487 int isdn_channel; /* Index to isdn-channel */ 488 int drv_index; /* Index to dev->usage */ 489 int ncarrier; /* Flag: schedule NO CARRIER */ 490 unsigned char last_cause[8]; /* Last cause message */ 491 unsigned char last_num[ISDN_MSNLEN]; 492 /* Last phone-number */ 493 unsigned char last_l2; /* Last layer-2 protocol */ 494 unsigned char last_si; /* Last service */ 495 unsigned char last_lhup; /* Last hangup local? */ 496 unsigned char last_dir; /* Last direction (in or out) */ 497 struct timer_list nc_timer; /* Timer for delayed NO CARRIER */ 498 int send_outstanding;/* # of outstanding send-requests */ 499 int xmit_size; /* max. # of chars in xmit_buf */ 500 int xmit_count; /* # of chars in xmit_buf */ 501 unsigned char *xmit_buf; /* transmit buffer */ 502 struct sk_buff_head xmit_queue; /* transmit queue */ 503 atomic_t xmit_lock; /* Semaphore for isdn_tty_write */ 504 #ifdef CONFIG_ISDN_AUDIO 505 int vonline; /* Voice-channel status */ 506 /* Bit 0 = recording */ 507 /* Bit 1 = playback */ 508 /* Bit 2 = playback, DLE-ETX seen */ 509 struct sk_buff_head dtmf_queue; /* queue for dtmf results */ 510 void *adpcms; /* state for adpcm decompression */ 511 void *adpcmr; /* state for adpcm compression */ 512 void *dtmf_state; /* state for dtmf decoder */ 513 void *silence_state; /* state for silence detection */ 514 #endif 515 #ifdef CONFIG_ISDN_TTY_FAX 516 struct T30_s *fax; /* T30 Fax Group 3 data/interface */ 517 int faxonline; /* Fax-channel status */ 518 #endif 519 struct tty_struct *tty; /* Pointer to corresponding tty */ 520 atemu emu; /* AT-emulator data */ 521 struct termios normal_termios; /* For saving termios structs */ 522 struct termios callout_termios; 523 wait_queue_head_t open_wait, close_wait; 524 struct semaphore write_sem; 525 } modem_info; 526 527 #define ISDN_MODEM_WINSIZE 8 528 529 /* Description of one ISDN-tty */ 530 typedef struct { 531 int refcount; /* Number of opens */ 532 struct tty_driver tty_modem; /* tty-device */ 533 struct tty_driver cua_modem; /* cua-device */ 534 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */ 535 struct termios *modem_termios[ISDN_MAX_CHANNELS]; 536 struct termios *modem_termios_locked[ISDN_MAX_CHANNELS]; 537 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */ 538 } modem; 539 540 /*======================= End of ISDN-tty stuff ============================*/ 541 542 /*======================== Start of V.110 stuff ============================*/ 543 #define V110_BUFSIZE 1024 544 545 typedef struct { 546 int nbytes; /* 1 Matrixbyte -> nbytes in stream */ 547 int nbits; /* Number of used bits in streambyte */ 548 unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */ 549 int decodelen; /* Amount of data in decodebuf */ 550 int SyncInit; /* Number of sync frames to send */ 551 unsigned char *OnlineFrame; /* Precalculated V110 idle frame */ 552 unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */ 553 int framelen; /* Length of frames */ 554 int skbuser; /* Number of unacked userdata skbs */ 555 int skbidle; /* Number of unacked idle/sync skbs */ 556 int introducer; /* Local vars for decoder */ 557 int dbit; 558 unsigned char b; 559 int skbres; /* space to reserve in outgoing skb */ 560 int maxsize; /* maxbufsize of lowlevel driver */ 561 unsigned char *encodebuf; /* temporary buffer for encoding */ 562 unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */ 563 } isdn_v110_stream; 564 565 /*========================= End of V.110 stuff =============================*/ 566 567 /*======================= Start of general stuff ===========================*/ 568 569 typedef struct { 570 char *next; 571 char *private; 572 } infostruct; 573 574 #define DRV_FLAG_RUNNING 1 575 #define DRV_FLAG_REJBUS 2 576 #define DRV_FLAG_LOADED 4 577 578 /* Description of hardware-level-driver */ 579 typedef struct { 580 ulong online; /* Channel-Online flags */ 581 ulong flags; /* Misc driver Flags */ 582 int locks; /* Number of locks for this driver */ 583 int channels; /* Number of channels */ 584 wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */ 585 int maxbufsize; /* Maximum Buffersize supported */ 586 unsigned long pktcount; /* Until now: unused */ 587 int stavail; /* Chars avail on Status-device */ 588 isdn_if *interface; /* Interface to driver */ 589 int *rcverr; /* Error-counters for B-Ch.-receive */ 590 int *rcvcount; /* Byte-counters for B-Ch.-receive */ 591 #ifdef CONFIG_ISDN_AUDIO 592 unsigned long DLEflag; /* Flags: Insert DLE at next read */ 593 #endif 594 struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */ 595 wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */ 596 wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */ 597 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */ 598 } driver; 599 600 /* Main driver-data */ 601 typedef struct isdn_devt { 602 unsigned short flags; /* Bitmapped Flags: */ 603 /* */ 604 int drivers; /* Current number of drivers */ 605 int channels; /* Current number of channels */ 606 int net_verbose; /* Verbose-Flag */ 607 int modempoll; /* Flag: tty-read active */ 608 int tflags; /* Timer-Flags: */ 609 /* see ISDN_TIMER_..defines */ 610 int global_flags; 611 infostruct *infochain; /* List of open info-devs. */ 612 wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */ 613 struct timer_list timer; /* Misc.-function Timer */ 614 int chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel */ 615 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */ 616 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */ 617 char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN]; 618 /* Remote number of active ch.*/ 619 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */ 620 driver *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */ 621 isdn_net_dev *netdev; /* Linked list of net-if's */ 622 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */ 623 struct task_struct *profd; /* For iprofd */ 624 modem mdm; /* tty-driver-data */ 625 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */ 626 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */ 627 ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */ 628 ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */ 629 int v110emu[ISDN_MAX_CHANNELS];/* V.110 emulator-mode 0=none */ 630 atomic_t v110use[ISDN_MAX_CHANNELS];/* Usage-Semaphore for stream */ 631 isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */ 632 struct semaphore sem; /* serialize list access*/ 633 unsigned long global_features; 634 #ifdef CONFIG_DEVFS_FS 635 devfs_handle_t devfs_handle_isdninfo; 636 devfs_handle_t devfs_handle_isdnctrl; 637 devfs_handle_t devfs_handle_isdnX[ISDN_MAX_CHANNELS]; 638 devfs_handle_t devfs_handle_isdnctrlX[ISDN_MAX_CHANNELS]; 639 #ifdef CONFIG_ISDN_PPP 640 devfs_handle_t devfs_handle_ipppX[ISDN_MAX_CHANNELS]; 641 #endif 642 #endif /* CONFIG_DEVFS_FS */ 643 } isdn_dev; 644 645 extern isdn_dev *dev; 646 647 648 #endif /* __KERNEL__ */ 649 650 #endif /* __ISDN_H__ */ 651