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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 | /* $Id: isdnif.h,v 1.43.2.2 2004/01/12 23:08:35 keil Exp $ * * Linux ISDN subsystem * Definition of the interface between the subsystem and its low-level drivers. * * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de) * Copyright 1995,96 Thinking Objects Software GmbH Wuerzburg * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #ifndef __ISDNIF_H__ #define __ISDNIF_H__ /* * Values for general protocol-selection */ #define ISDN_PTYPE_UNKNOWN 0 /* Protocol undefined */ #define ISDN_PTYPE_1TR6 1 /* german 1TR6-protocol */ #define ISDN_PTYPE_EURO 2 /* EDSS1-protocol */ #define ISDN_PTYPE_LEASED 3 /* for leased lines */ #define ISDN_PTYPE_NI1 4 /* US NI-1 protocol */ #define ISDN_PTYPE_MAX 7 /* Max. 8 Protocols */ /* * Values for Layer-2-protocol-selection */ #define ISDN_PROTO_L2_X75I 0 /* X75/LAPB with I-Frames */ #define ISDN_PROTO_L2_X75UI 1 /* X75/LAPB with UI-Frames */ #define ISDN_PROTO_L2_X75BUI 2 /* X75/LAPB with UI-Frames */ #define ISDN_PROTO_L2_HDLC 3 /* HDLC */ #define ISDN_PROTO_L2_TRANS 4 /* Transparent (Voice) */ #define ISDN_PROTO_L2_X25DTE 5 /* X25/LAPB DTE mode */ #define ISDN_PROTO_L2_X25DCE 6 /* X25/LAPB DCE mode */ #define ISDN_PROTO_L2_V11096 7 /* V.110 bitrate adaption 9600 Baud */ #define ISDN_PROTO_L2_V11019 8 /* V.110 bitrate adaption 19200 Baud */ #define ISDN_PROTO_L2_V11038 9 /* V.110 bitrate adaption 38400 Baud */ #define ISDN_PROTO_L2_MODEM 10 /* Analog Modem on Board */ #define ISDN_PROTO_L2_FAX 11 /* Fax Group 2/3 */ #define ISDN_PROTO_L2_HDLC_56K 12 /* HDLC 56k */ #define ISDN_PROTO_L2_MAX 15 /* Max. 16 Protocols */ /* * Values for Layer-3-protocol-selection */ #define ISDN_PROTO_L3_TRANS 0 /* Transparent */ #define ISDN_PROTO_L3_TRANSDSP 1 /* Transparent with DSP */ #define ISDN_PROTO_L3_FCLASS2 2 /* Fax Group 2/3 CLASS 2 */ #define ISDN_PROTO_L3_FCLASS1 3 /* Fax Group 2/3 CLASS 1 */ #define ISDN_PROTO_L3_MAX 7 /* Max. 8 Protocols */ #ifdef __KERNEL__ #include <linux/skbuff.h> /***************************************************************************/ /* Extensions made by Werner Cornelius (werner@ikt.de) */ /* */ /* The proceed command holds a incoming call in a state to leave processes */ /* enough time to check whether ist should be accepted. */ /* The PROT_IO Command extends the interface to make protocol dependent */ /* features available (call diversion, call waiting...). */ /* */ /* The PROT_IO Command is executed with the desired driver id and the arg */ /* parameter coded as follows: */ /* The lower 8 bits of arg contain the desired protocol from ISDN_PTYPE */ /* definitions. The upper 24 bits represent the protocol specific cmd/stat.*/ /* Any additional data is protocol and command specific. */ /* This mechanism also applies to the statcallb callback STAT_PROT. */ /* */ /* This suggested extension permits an easy expansion of protocol specific */ /* handling. Extensions may be added at any time without changing the HL */ /* driver code and not getting conflicts without certifications. */ /* The well known CAPI 2.0 interface handles such extensions in a similar */ /* way. Perhaps a protocol specific module may be added and separately */ /* loaded and linked to the basic isdn module for handling. */ /***************************************************************************/ /*****************/ /* DSS1 commands */ /*****************/ #define DSS1_CMD_INVOKE ((0x00 << 8) | ISDN_PTYPE_EURO) /* invoke a supplementary service */ #define DSS1_CMD_INVOKE_ABORT ((0x01 << 8) | ISDN_PTYPE_EURO) /* abort a invoke cmd */ /*******************************/ /* DSS1 Status callback values */ /*******************************/ #define DSS1_STAT_INVOKE_RES ((0x80 << 8) | ISDN_PTYPE_EURO) /* Result for invocation */ #define DSS1_STAT_INVOKE_ERR ((0x81 << 8) | ISDN_PTYPE_EURO) /* Error Return for invocation */ #define DSS1_STAT_INVOKE_BRD ((0x82 << 8) | ISDN_PTYPE_EURO) /* Deliver invoke broadcast info */ /*********************************************************************/ /* structures for DSS1 commands and callback */ /* */ /* An action is invoked by sending a DSS1_CMD_INVOKE. The ll_id, proc*/ /* timeout, datalen and data fields must be set before calling. */ /* */ /* The return value is a positive hl_id value also delivered in the */ /* hl_id field. A value of zero signals no more left hl_id capacitys.*/ /* A negative return value signals errors in LL. So if the return */ /* value is <= 0 no action in LL will be taken -> request ignored */ /* */ /* The timeout field must be filled with a positive value specifying */ /* the amount of time the INVOKED process waits for a reaction from */ /* the network. */ /* If a response (either error or result) is received during this */ /* intervall, a reporting callback is initiated and the process will */ /* be deleted, the hl identifier will be freed. */ /* If no response is received during the specified intervall, a error*/ /* callback is initiated with timeout set to -1 and a datalen set */ /* to 0. */ /* If timeout is set to a value <= 0 during INVOCATION the process is*/ /* immediately deleted after sending the data. No callback occurs ! */ /* */ /* A currently waiting process may be aborted with INVOKE_ABORT. No */ /* callback will occur when a process has been aborted. */ /* */ /* Broadcast invoke frames from the network are reported via the */ /* STAT_INVOKE_BRD callback. The ll_id is set to 0, the other fields */ /* are supplied by the network and not by the HL. */ /*********************************************************************/ /*****************/ /* NI1 commands */ /*****************/ #define NI1_CMD_INVOKE ((0x00 << 8) | ISDN_PTYPE_NI1) /* invoke a supplementary service */ #define NI1_CMD_INVOKE_ABORT ((0x01 << 8) | ISDN_PTYPE_NI1) /* abort a invoke cmd */ /*******************************/ /* NI1 Status callback values */ /*******************************/ #define NI1_STAT_INVOKE_RES ((0x80 << 8) | ISDN_PTYPE_NI1) /* Result for invocation */ #define NI1_STAT_INVOKE_ERR ((0x81 << 8) | ISDN_PTYPE_NI1) /* Error Return for invocation */ #define NI1_STAT_INVOKE_BRD ((0x82 << 8) | ISDN_PTYPE_NI1) /* Deliver invoke broadcast info */ typedef struct { ulong ll_id; /* ID supplied by LL when executing */ /* a command and returned by HL for */ /* INVOKE_RES and INVOKE_ERR */ int hl_id; /* ID supplied by HL when called */ /* for executing a cmd and delivered */ /* for results and errors */ /* must be supplied by LL when aborting*/ int proc; /* invoke procedure used by CMD_INVOKE */ /* returned by callback and broadcast */ int timeout; /* timeout for INVOKE CMD in ms */ /* -1 in stat callback when timed out */ /* error value when error callback */ int datalen; /* length of cmd or stat data */ u_char *data;/* pointer to data delivered or send */ } isdn_cmd_stat; /* * Commands from linklevel to lowlevel * */ #define ISDN_CMD_IOCTL 0 /* Perform ioctl */ #define ISDN_CMD_DIAL 1 /* Dial out */ #define ISDN_CMD_ACCEPTD 2 /* Accept an incoming call on D-Chan. */ #define ISDN_CMD_ACCEPTB 3 /* Request B-Channel connect. */ #define ISDN_CMD_HANGUP 4 /* Hangup */ #define ISDN_CMD_CLREAZ 5 /* Clear EAZ(s) of channel */ #define ISDN_CMD_SETEAZ 6 /* Set EAZ(s) of channel */ #define ISDN_CMD_GETEAZ 7 /* Get EAZ(s) of channel */ #define ISDN_CMD_SETSIL 8 /* Set Service-Indicator-List of channel */ #define ISDN_CMD_GETSIL 9 /* Get Service-Indicator-List of channel */ #define ISDN_CMD_SETL2 10 /* Set B-Chan. Layer2-Parameter */ #define ISDN_CMD_GETL2 11 /* Get B-Chan. Layer2-Parameter */ #define ISDN_CMD_SETL3 12 /* Set B-Chan. Layer3-Parameter */ #define ISDN_CMD_GETL3 13 /* Get B-Chan. Layer3-Parameter */ // #define ISDN_CMD_LOCK 14 /* Signal usage by upper levels */ // #define ISDN_CMD_UNLOCK 15 /* Release usage-lock */ #define ISDN_CMD_SUSPEND 16 /* Suspend connection */ #define ISDN_CMD_RESUME 17 /* Resume connection */ #define ISDN_CMD_PROCEED 18 /* Proceed with call establishment */ #define ISDN_CMD_ALERT 19 /* Alert after Proceeding */ #define ISDN_CMD_REDIR 20 /* Redir a incoming call */ #define ISDN_CMD_PROT_IO 21 /* Protocol specific commands */ #define CAPI_PUT_MESSAGE 22 /* CAPI message send down or up */ #define ISDN_CMD_FAXCMD 23 /* FAX commands to HL-driver */ #define ISDN_CMD_AUDIO 24 /* DSP, DTMF, ... settings */ /* * Status-Values delivered from lowlevel to linklevel via * statcallb(). * */ #define ISDN_STAT_STAVAIL 256 /* Raw status-data available */ #define ISDN_STAT_ICALL 257 /* Incoming call detected */ #define ISDN_STAT_RUN 258 /* Signal protocol-code is running */ #define ISDN_STAT_STOP 259 /* Signal halt of protocol-code */ #define ISDN_STAT_DCONN 260 /* Signal D-Channel connect */ #define ISDN_STAT_BCONN 261 /* Signal B-Channel connect */ #define ISDN_STAT_DHUP 262 /* Signal D-Channel disconnect */ #define ISDN_STAT_BHUP 263 /* Signal B-Channel disconnect */ #define ISDN_STAT_CINF 264 /* Charge-Info */ #define ISDN_STAT_LOAD 265 /* Signal new lowlevel-driver is loaded */ #define ISDN_STAT_UNLOAD 266 /* Signal unload of lowlevel-driver */ #define ISDN_STAT_BSENT 267 /* Signal packet sent */ #define ISDN_STAT_NODCH 268 /* Signal no D-Channel */ #define ISDN_STAT_ADDCH 269 /* Add more Channels */ #define ISDN_STAT_CAUSE 270 /* Cause-Message */ #define ISDN_STAT_ICALLW 271 /* Incoming call without B-chan waiting */ #define ISDN_STAT_REDIR 272 /* Redir result */ #define ISDN_STAT_PROT 273 /* protocol IO specific callback */ #define ISDN_STAT_DISPLAY 274 /* deliver a received display message */ #define ISDN_STAT_L1ERR 275 /* Signal Layer-1 Error */ #define ISDN_STAT_FAXIND 276 /* FAX indications from HL-driver */ #define ISDN_STAT_AUDIO 277 /* DTMF, DSP indications */ #define ISDN_STAT_DISCH 278 /* Disable/Enable channel usage */ /* * Audio commands */ #define ISDN_AUDIO_SETDD 0 /* Set DTMF detection */ #define ISDN_AUDIO_DTMF 1 /* Rx/Tx DTMF */ /* * Values for errcode field */ #define ISDN_STAT_L1ERR_SEND 1 #define ISDN_STAT_L1ERR_RECV 2 /* * Values for feature-field of interface-struct. */ /* Layer 2 */ #define ISDN_FEATURE_L2_X75I (0x0001 << ISDN_PROTO_L2_X75I) #define ISDN_FEATURE_L2_X75UI (0x0001 << ISDN_PROTO_L2_X75UI) #define ISDN_FEATURE_L2_X75BUI (0x0001 << ISDN_PROTO_L2_X75BUI) #define ISDN_FEATURE_L2_HDLC (0x0001 << ISDN_PROTO_L2_HDLC) #define ISDN_FEATURE_L2_TRANS (0x0001 << ISDN_PROTO_L2_TRANS) #define ISDN_FEATURE_L2_X25DTE (0x0001 << ISDN_PROTO_L2_X25DTE) #define ISDN_FEATURE_L2_X25DCE (0x0001 << ISDN_PROTO_L2_X25DCE) #define ISDN_FEATURE_L2_V11096 (0x0001 << ISDN_PROTO_L2_V11096) #define ISDN_FEATURE_L2_V11019 (0x0001 << ISDN_PROTO_L2_V11019) #define ISDN_FEATURE_L2_V11038 (0x0001 << ISDN_PROTO_L2_V11038) #define ISDN_FEATURE_L2_MODEM (0x0001 << ISDN_PROTO_L2_MODEM) #define ISDN_FEATURE_L2_FAX (0x0001 << ISDN_PROTO_L2_FAX) #define ISDN_FEATURE_L2_HDLC_56K (0x0001 << ISDN_PROTO_L2_HDLC_56K) #define ISDN_FEATURE_L2_MASK (0x0FFFF) /* Max. 16 protocols */ #define ISDN_FEATURE_L2_SHIFT (0) /* Layer 3 */ #define ISDN_FEATURE_L3_TRANS (0x10000 << ISDN_PROTO_L3_TRANS) #define ISDN_FEATURE_L3_TRANSDSP (0x10000 << ISDN_PROTO_L3_TRANSDSP) #define ISDN_FEATURE_L3_FCLASS2 (0x10000 << ISDN_PROTO_L3_FCLASS2) #define ISDN_FEATURE_L3_FCLASS1 (0x10000 << ISDN_PROTO_L3_FCLASS1) #define ISDN_FEATURE_L3_MASK (0x0FF0000) /* Max. 8 Protocols */ #define ISDN_FEATURE_L3_SHIFT (16) /* Signaling */ #define ISDN_FEATURE_P_UNKNOWN (0x1000000 << ISDN_PTYPE_UNKNOWN) #define ISDN_FEATURE_P_1TR6 (0x1000000 << ISDN_PTYPE_1TR6) #define ISDN_FEATURE_P_EURO (0x1000000 << ISDN_PTYPE_EURO) #define ISDN_FEATURE_P_NI1 (0x1000000 << ISDN_PTYPE_NI1) #define ISDN_FEATURE_P_MASK (0x0FF000000) /* Max. 8 Protocols */ #define ISDN_FEATURE_P_SHIFT (24) typedef struct setup_parm { unsigned char phone[32]; /* Remote Phone-Number */ unsigned char eazmsn[32]; /* Local EAZ or MSN */ unsigned char si1; /* Service Indicator 1 */ unsigned char si2; /* Service Indicator 2 */ unsigned char plan; /* Numbering plan */ unsigned char screen; /* Screening info */ } setup_parm; #ifdef CONFIG_ISDN_TTY_FAX /* T.30 Fax G3 */ #define FAXIDLEN 21 typedef struct T30_s { /* session parameters */ __u8 resolution; __u8 rate; __u8 width; __u8 length; __u8 compression; __u8 ecm; __u8 binary; __u8 scantime; __u8 id[FAXIDLEN]; /* additional parameters */ __u8 phase; __u8 direction; __u8 code; __u8 badlin; __u8 badmul; __u8 bor; __u8 fet; __u8 pollid[FAXIDLEN]; __u8 cq; __u8 cr; __u8 ctcrty; __u8 minsp; __u8 phcto; __u8 rel; __u8 nbc; /* remote station parameters */ __u8 r_resolution; __u8 r_rate; __u8 r_width; __u8 r_length; __u8 r_compression; __u8 r_ecm; __u8 r_binary; __u8 r_scantime; __u8 r_id[FAXIDLEN]; __u8 r_code; } __attribute__((packed)) T30_s; #define ISDN_TTY_FAX_CONN_IN 0 #define ISDN_TTY_FAX_CONN_OUT 1 #define ISDN_TTY_FAX_FCON 0 #define ISDN_TTY_FAX_DIS 1 #define ISDN_TTY_FAX_FTT 2 #define ISDN_TTY_FAX_MCF 3 #define ISDN_TTY_FAX_DCS 4 #define ISDN_TTY_FAX_TRAIN_OK 5 #define ISDN_TTY_FAX_EOP 6 #define ISDN_TTY_FAX_EOM 7 #define ISDN_TTY_FAX_MPS 8 #define ISDN_TTY_FAX_DTC 9 #define ISDN_TTY_FAX_RID 10 #define ISDN_TTY_FAX_HNG 11 #define ISDN_TTY_FAX_DT 12 #define ISDN_TTY_FAX_FCON_I 13 #define ISDN_TTY_FAX_DR 14 #define ISDN_TTY_FAX_ET 15 #define ISDN_TTY_FAX_CFR 16 #define ISDN_TTY_FAX_PTS 17 #define ISDN_TTY_FAX_SENT 18 #define ISDN_FAX_PHASE_IDLE 0 #define ISDN_FAX_PHASE_A 1 #define ISDN_FAX_PHASE_B 2 #define ISDN_FAX_PHASE_C 3 #define ISDN_FAX_PHASE_D 4 #define ISDN_FAX_PHASE_E 5 #endif /* TTY_FAX */ #define ISDN_FAX_CLASS1_FAE 0 #define ISDN_FAX_CLASS1_FTS 1 #define ISDN_FAX_CLASS1_FRS 2 #define ISDN_FAX_CLASS1_FTM 3 #define ISDN_FAX_CLASS1_FRM 4 #define ISDN_FAX_CLASS1_FTH 5 #define ISDN_FAX_CLASS1_FRH 6 #define ISDN_FAX_CLASS1_CTRL 7 #define ISDN_FAX_CLASS1_OK 0 #define ISDN_FAX_CLASS1_CONNECT 1 #define ISDN_FAX_CLASS1_NOCARR 2 #define ISDN_FAX_CLASS1_ERROR 3 #define ISDN_FAX_CLASS1_FCERROR 4 #define ISDN_FAX_CLASS1_QUERY 5 typedef struct { __u8 cmd; __u8 subcmd; __u8 para[50]; } aux_s; #define AT_COMMAND 0 #define AT_EQ_VALUE 1 #define AT_QUERY 2 #define AT_EQ_QUERY 3 /* CAPI structs */ /* this is compatible to the old union size */ #define MAX_CAPI_PARA_LEN 50 typedef struct { /* Header */ __u16 Length; __u16 ApplId; __u8 Command; __u8 Subcommand; __u16 Messagenumber; /* Parameter */ union { __u32 Controller; __u32 PLCI; __u32 NCCI; } adr; __u8 para[MAX_CAPI_PARA_LEN]; } capi_msg; /* * Structure for exchanging above infos * */ typedef struct { int driver; /* Lowlevel-Driver-ID */ int command; /* Command or Status (see above) */ ulong arg; /* Additional Data */ union { ulong errcode; /* Type of error with STAT_L1ERR */ int length; /* Amount of bytes sent with STAT_BSENT */ u_char num[50]; /* Additional Data */ setup_parm setup;/* For SETUP msg */ capi_msg cmsg; /* For CAPI like messages */ char display[85];/* display message data */ isdn_cmd_stat isdn_io; /* ISDN IO-parameter/result */ aux_s aux; /* for modem commands/indications */ #ifdef CONFIG_ISDN_TTY_FAX T30_s *fax; /* Pointer to ttys fax struct */ #endif ulong userdata; /* User Data */ } parm; } isdn_ctrl; #define dss1_io isdn_io #define ni1_io isdn_io /* * The interface-struct itself (initialized at load-time of lowlevel-driver) * * See Documentation/isdn/INTERFACE for a description, how the communication * between the ISDN subsystem and its drivers is done. * */ typedef struct { struct module *owner; /* Number of channels supported by this driver */ int channels; /* * Maximum Size of transmit/receive-buffer this driver supports. */ int maxbufsize; /* Feature-Flags for this driver. * See defines ISDN_FEATURE_... for Values */ unsigned long features; /* * Needed for calculating * dev->hard_header_len = linklayer header + hl_hdrlen; * Drivers, not supporting sk_buff's should set this to 0. */ unsigned short hl_hdrlen; /* * Receive-Callback using sk_buff's * Parameters: * int Driver-ID * int local channel-number (0 ...) * struct sk_buff *skb received Data */ void (*rcvcallb_skb)(int, int, struct sk_buff *); /* Status-Callback * Parameters: * isdn_ctrl* * driver = Driver ID. * command = One of above ISDN_STAT_... constants. * arg = depending on status-type. * num = depending on status-type. */ int (*statcallb)(isdn_ctrl*); /* Send command * Parameters: * isdn_ctrl* * driver = Driver ID. * command = One of above ISDN_CMD_... constants. * arg = depending on command. * num = depending on command. */ int (*command)(isdn_ctrl*); /* * Send data using sk_buff's * Parameters: * int driverId * int local channel-number (0...) * int Flag: Need ACK for this packet. * struct sk_buff *skb Data to send */ int (*writebuf_skb) (int, int, int, struct sk_buff *); /* Send raw D-Channel-Commands * Parameters: * u_char pointer data * int length of data * int driverId * int local channel-number (0 ...) */ int (*writecmd)(const u_char __user *, int, int, int); /* Read raw Status replies * u_char pointer data (volatile) * int length of buffer * int driverId * int local channel-number (0 ...) */ int (*readstat)(u_char __user *, int, int, int); char id[20]; } isdn_if; /* * Function which must be called by lowlevel-driver at loadtime with * the following fields of above struct set: * * channels Number of channels that will be supported. * hl_hdrlen Space to preserve in sk_buff's when sending. Drivers, not * supporting sk_buff's should set this to 0. * command Address of Command-Handler. * features Bitwise coded Features of this driver. (use ISDN_FEATURE_...) * writebuf_skb Address of Skbuff-Send-Handler. * writecmd " " D-Channel " which accepts raw D-Ch-Commands. * readstat " " D-Channel " which delivers raw Status-Data. * * The linklevel-driver fills the following fields: * * channels Driver-ID assigned to this driver. (Must be used on all * subsequent callbacks. * rcvcallb_skb Address of handler for received Skbuff's. * statcallb " " " for status-changes. * */ extern int register_isdn(isdn_if*); #include <asm/uaccess.h> #endif /* __KERNEL__ */ #endif /* __ISDNIF_H__ */ |