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TOMOYO Linux Cross Reference
Linux/include/linux/mISDNif.h

Version: ~ [ linux-5.2 ] ~ [ linux-5.1.16 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.57 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.132 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.184 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.184 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.69 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *
  3  * Author       Karsten Keil <kkeil@novell.com>
  4  *
  5  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
  6  *
  7  * This code is free software; you can redistribute it and/or modify
  8  * it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
  9  * version 2.1 as published by the Free Software Foundation.
 10  *
 11  * This code is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU LESSER GENERAL PUBLIC LICENSE for more details.
 15  *
 16  */
 17 
 18 #ifndef mISDNIF_H
 19 #define mISDNIF_H
 20 
 21 #include <stdarg.h>
 22 #include <linux/types.h>
 23 #include <linux/errno.h>
 24 #include <linux/socket.h>
 25 
 26 /*
 27  * ABI Version 32 bit
 28  *
 29  * <8 bit> Major version
 30  *              - changed if any interface become backwards incompatible
 31  *
 32  * <8 bit> Minor version
 33  *              - changed if any interface is extended but backwards compatible
 34  *
 35  * <16 bit> Release number
 36  *              - should be incremented on every checkin
 37  */
 38 #define MISDN_MAJOR_VERSION     1
 39 #define MISDN_MINOR_VERSION     1
 40 #define MISDN_RELEASE           29
 41 
 42 /* primitives for information exchange
 43  * generell format
 44  * <16  bit  0 >
 45  * <8  bit command>
 46  *    BIT 8 = 1 LAYER private
 47  *    BIT 7 = 1 answer
 48  *    BIT 6 = 1 DATA
 49  * <8  bit target layer mask>
 50  *
 51  * Layer = 00 is reserved for general commands
 52    Layer = 01  L2 -> HW
 53    Layer = 02  HW -> L2
 54    Layer = 04  L3 -> L2
 55    Layer = 08  L2 -> L3
 56  * Layer = FF is reserved for broadcast commands
 57  */
 58 
 59 #define MISDN_CMDMASK           0xff00
 60 #define MISDN_LAYERMASK         0x00ff
 61 
 62 /* generell commands */
 63 #define OPEN_CHANNEL            0x0100
 64 #define CLOSE_CHANNEL           0x0200
 65 #define CONTROL_CHANNEL         0x0300
 66 #define CHECK_DATA              0x0400
 67 
 68 /* layer 2 -> layer 1 */
 69 #define PH_ACTIVATE_REQ         0x0101
 70 #define PH_DEACTIVATE_REQ       0x0201
 71 #define PH_DATA_REQ             0x2001
 72 #define MPH_ACTIVATE_REQ        0x0501
 73 #define MPH_DEACTIVATE_REQ      0x0601
 74 #define MPH_INFORMATION_REQ     0x0701
 75 #define PH_CONTROL_REQ          0x0801
 76 
 77 /* layer 1 -> layer 2 */
 78 #define PH_ACTIVATE_IND         0x0102
 79 #define PH_ACTIVATE_CNF         0x4102
 80 #define PH_DEACTIVATE_IND       0x0202
 81 #define PH_DEACTIVATE_CNF       0x4202
 82 #define PH_DATA_IND             0x2002
 83 #define PH_DATA_E_IND           0x3002
 84 #define MPH_ACTIVATE_IND        0x0502
 85 #define MPH_DEACTIVATE_IND      0x0602
 86 #define MPH_INFORMATION_IND     0x0702
 87 #define PH_DATA_CNF             0x6002
 88 #define PH_CONTROL_IND          0x0802
 89 #define PH_CONTROL_CNF          0x4802
 90 
 91 /* layer 3 -> layer 2 */
 92 #define DL_ESTABLISH_REQ        0x1004
 93 #define DL_RELEASE_REQ          0x1104
 94 #define DL_DATA_REQ             0x3004
 95 #define DL_UNITDATA_REQ         0x3104
 96 #define DL_INFORMATION_REQ      0x0004
 97 
 98 /* layer 2 -> layer 3 */
 99 #define DL_ESTABLISH_IND        0x1008
100 #define DL_ESTABLISH_CNF        0x5008
101 #define DL_RELEASE_IND          0x1108
102 #define DL_RELEASE_CNF          0x5108
103 #define DL_DATA_IND             0x3008
104 #define DL_UNITDATA_IND         0x3108
105 #define DL_INFORMATION_IND      0x0008
106 
107 /* intern layer 2 management */
108 #define MDL_ASSIGN_REQ          0x1804
109 #define MDL_ASSIGN_IND          0x1904
110 #define MDL_REMOVE_REQ          0x1A04
111 #define MDL_REMOVE_IND          0x1B04
112 #define MDL_STATUS_UP_IND       0x1C04
113 #define MDL_STATUS_DOWN_IND     0x1D04
114 #define MDL_STATUS_UI_IND       0x1E04
115 #define MDL_ERROR_IND           0x1F04
116 #define MDL_ERROR_RSP           0x5F04
117 
118 /* intern layer 2 */
119 #define DL_TIMER200_IND         0x7004
120 #define DL_TIMER203_IND         0x7304
121 #define DL_INTERN_MSG           0x7804
122 
123 /* DL_INFORMATION_IND types */
124 #define DL_INFO_L2_CONNECT      0x0001
125 #define DL_INFO_L2_REMOVED      0x0002
126 
127 /* PH_CONTROL types */
128 /* TOUCH TONE IS 0x20XX  XX ""..."9", "A","B","C","D","*","#" */
129 #define DTMF_TONE_VAL           0x2000
130 #define DTMF_TONE_MASK          0x007F
131 #define DTMF_TONE_START         0x2100
132 #define DTMF_TONE_STOP          0x2200
133 #define DTMF_HFC_COEF           0x4000
134 #define DSP_CONF_JOIN           0x2403
135 #define DSP_CONF_SPLIT          0x2404
136 #define DSP_RECEIVE_OFF         0x2405
137 #define DSP_RECEIVE_ON          0x2406
138 #define DSP_ECHO_ON             0x2407
139 #define DSP_ECHO_OFF            0x2408
140 #define DSP_MIX_ON              0x2409
141 #define DSP_MIX_OFF             0x240a
142 #define DSP_DELAY               0x240b
143 #define DSP_JITTER              0x240c
144 #define DSP_TXDATA_ON           0x240d
145 #define DSP_TXDATA_OFF          0x240e
146 #define DSP_TX_DEJITTER         0x240f
147 #define DSP_TX_DEJ_OFF          0x2410
148 #define DSP_TONE_PATT_ON        0x2411
149 #define DSP_TONE_PATT_OFF       0x2412
150 #define DSP_VOL_CHANGE_TX       0x2413
151 #define DSP_VOL_CHANGE_RX       0x2414
152 #define DSP_BF_ENABLE_KEY       0x2415
153 #define DSP_BF_DISABLE          0x2416
154 #define DSP_BF_ACCEPT           0x2416
155 #define DSP_BF_REJECT           0x2417
156 #define DSP_PIPELINE_CFG        0x2418
157 #define HFC_VOL_CHANGE_TX       0x2601
158 #define HFC_VOL_CHANGE_RX       0x2602
159 #define HFC_SPL_LOOP_ON         0x2603
160 #define HFC_SPL_LOOP_OFF        0x2604
161 /* for T30 FAX and analog modem */
162 #define HW_MOD_FRM              0x4000
163 #define HW_MOD_FRH              0x4001
164 #define HW_MOD_FTM              0x4002
165 #define HW_MOD_FTH              0x4003
166 #define HW_MOD_FTS              0x4004
167 #define HW_MOD_CONNECT          0x4010
168 #define HW_MOD_OK               0x4011
169 #define HW_MOD_NOCARR           0x4012
170 #define HW_MOD_FCERROR          0x4013
171 #define HW_MOD_READY            0x4014
172 #define HW_MOD_LASTDATA         0x4015
173 
174 /* DSP_TONE_PATT_ON parameter */
175 #define TONE_OFF                        0x0000
176 #define TONE_GERMAN_DIALTONE            0x0001
177 #define TONE_GERMAN_OLDDIALTONE         0x0002
178 #define TONE_AMERICAN_DIALTONE          0x0003
179 #define TONE_GERMAN_DIALPBX             0x0004
180 #define TONE_GERMAN_OLDDIALPBX          0x0005
181 #define TONE_AMERICAN_DIALPBX           0x0006
182 #define TONE_GERMAN_RINGING             0x0007
183 #define TONE_GERMAN_OLDRINGING          0x0008
184 #define TONE_AMERICAN_RINGPBX           0x000b
185 #define TONE_GERMAN_RINGPBX             0x000c
186 #define TONE_GERMAN_OLDRINGPBX          0x000d
187 #define TONE_AMERICAN_RINGING           0x000e
188 #define TONE_GERMAN_BUSY                0x000f
189 #define TONE_GERMAN_OLDBUSY             0x0010
190 #define TONE_AMERICAN_BUSY              0x0011
191 #define TONE_GERMAN_HANGUP              0x0012
192 #define TONE_GERMAN_OLDHANGUP           0x0013
193 #define TONE_AMERICAN_HANGUP            0x0014
194 #define TONE_SPECIAL_INFO               0x0015
195 #define TONE_GERMAN_GASSENBESETZT       0x0016
196 #define TONE_GERMAN_AUFSCHALTTON        0x0016
197 
198 /* MPH_INFORMATION_IND */
199 #define L1_SIGNAL_LOS_OFF       0x0010
200 #define L1_SIGNAL_LOS_ON        0x0011
201 #define L1_SIGNAL_AIS_OFF       0x0012
202 #define L1_SIGNAL_AIS_ON        0x0013
203 #define L1_SIGNAL_RDI_OFF       0x0014
204 #define L1_SIGNAL_RDI_ON        0x0015
205 #define L1_SIGNAL_SLIP_RX       0x0020
206 #define L1_SIGNAL_SLIP_TX       0x0021
207 
208 /*
209  * protocol ids
210  * D channel 1-31
211  * B channel 33 - 63
212  */
213 
214 #define ISDN_P_NONE             0
215 #define ISDN_P_BASE             0
216 #define ISDN_P_TE_S0            0x01
217 #define ISDN_P_NT_S0            0x02
218 #define ISDN_P_TE_E1            0x03
219 #define ISDN_P_NT_E1            0x04
220 #define ISDN_P_TE_UP0           0x05
221 #define ISDN_P_NT_UP0           0x06
222 
223 #define IS_ISDN_P_TE(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_TE_E1) || \
224                                 (p == ISDN_P_TE_UP0) || (p == ISDN_P_LAPD_TE))
225 #define IS_ISDN_P_NT(p) ((p == ISDN_P_NT_S0) || (p == ISDN_P_NT_E1) || \
226                                 (p == ISDN_P_NT_UP0) || (p == ISDN_P_LAPD_NT))
227 #define IS_ISDN_P_S0(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_NT_S0))
228 #define IS_ISDN_P_E1(p) ((p == ISDN_P_TE_E1) || (p == ISDN_P_NT_E1))
229 #define IS_ISDN_P_UP0(p) ((p == ISDN_P_TE_UP0) || (p == ISDN_P_NT_UP0))
230 
231 
232 #define ISDN_P_LAPD_TE          0x10
233 #define ISDN_P_LAPD_NT          0x11
234 
235 #define ISDN_P_B_MASK           0x1f
236 #define ISDN_P_B_START          0x20
237 
238 #define ISDN_P_B_RAW            0x21
239 #define ISDN_P_B_HDLC           0x22
240 #define ISDN_P_B_X75SLP         0x23
241 #define ISDN_P_B_L2DTMF         0x24
242 #define ISDN_P_B_L2DSP          0x25
243 #define ISDN_P_B_L2DSPHDLC      0x26
244 #define ISDN_P_B_T30_FAX        0x27
245 #define ISDN_P_B_MODEM_ASYNC    0x28
246 
247 #define OPTION_L2_PMX           1
248 #define OPTION_L2_PTP           2
249 #define OPTION_L2_FIXEDTEI      3
250 #define OPTION_L2_CLEANUP       4
251 #define OPTION_L1_HOLD          5
252 
253 /* should be in sync with linux/kobject.h:KOBJ_NAME_LEN */
254 #define MISDN_MAX_IDLEN         20
255 
256 struct mISDNhead {
257         unsigned int    prim;
258         unsigned int    id;
259 }  __packed;
260 
261 #define MISDN_HEADER_LEN        sizeof(struct mISDNhead)
262 #define MAX_DATA_SIZE           2048
263 #define MAX_DATA_MEM            (MAX_DATA_SIZE + MISDN_HEADER_LEN)
264 #define MAX_DFRAME_LEN          260
265 
266 #define MISDN_ID_ADDR_MASK      0xFFFF
267 #define MISDN_ID_TEI_MASK       0xFF00
268 #define MISDN_ID_SAPI_MASK      0x00FF
269 #define MISDN_ID_TEI_ANY        0x7F00
270 
271 #define MISDN_ID_ANY            0xFFFF
272 #define MISDN_ID_NONE           0xFFFE
273 
274 #define GROUP_TEI               127
275 #define TEI_SAPI                63
276 #define CTRL_SAPI               0
277 
278 #define MISDN_MAX_CHANNEL       127
279 #define MISDN_CHMAP_SIZE        ((MISDN_MAX_CHANNEL + 1) >> 3)
280 
281 #define SOL_MISDN       0
282 
283 struct sockaddr_mISDN {
284         sa_family_t    family;
285         unsigned char   dev;
286         unsigned char   channel;
287         unsigned char   sapi;
288         unsigned char   tei;
289 };
290 
291 struct mISDNversion {
292         unsigned char   major;
293         unsigned char   minor;
294         unsigned short  release;
295 };
296 
297 struct mISDN_devinfo {
298         u_int                   id;
299         u_int                   Dprotocols;
300         u_int                   Bprotocols;
301         u_int                   protocol;
302         u_char                  channelmap[MISDN_CHMAP_SIZE];
303         u_int                   nrbchan;
304         char                    name[MISDN_MAX_IDLEN];
305 };
306 
307 struct mISDN_devrename {
308         u_int                   id;
309         char                    name[MISDN_MAX_IDLEN]; /* new name */
310 };
311 
312 /* MPH_INFORMATION_REQ payload */
313 struct ph_info_ch {
314         __u32 protocol;
315         __u64 Flags;
316 };
317 
318 struct ph_info_dch {
319         struct ph_info_ch ch;
320         __u16 state;
321         __u16 num_bch;
322 };
323 
324 struct ph_info {
325         struct ph_info_dch dch;
326         struct ph_info_ch  bch[];
327 };
328 
329 /* timer device ioctl */
330 #define IMADDTIMER      _IOR('I', 64, int)
331 #define IMDELTIMER      _IOR('I', 65, int)
332 
333 /* socket ioctls */
334 #define IMGETVERSION    _IOR('I', 66, int)
335 #define IMGETCOUNT      _IOR('I', 67, int)
336 #define IMGETDEVINFO    _IOR('I', 68, int)
337 #define IMCTRLREQ       _IOR('I', 69, int)
338 #define IMCLEAR_L2      _IOR('I', 70, int)
339 #define IMSETDEVNAME    _IOR('I', 71, struct mISDN_devrename)
340 #define IMHOLD_L1       _IOR('I', 72, int)
341 
342 static inline int
343 test_channelmap(u_int nr, u_char *map)
344 {
345         if (nr <= MISDN_MAX_CHANNEL)
346                 return map[nr >> 3] & (1 << (nr & 7));
347         else
348                 return 0;
349 }
350 
351 static inline void
352 set_channelmap(u_int nr, u_char *map)
353 {
354         map[nr >> 3] |= (1 << (nr & 7));
355 }
356 
357 static inline void
358 clear_channelmap(u_int nr, u_char *map)
359 {
360         map[nr >> 3] &= ~(1 << (nr & 7));
361 }
362 
363 /* CONTROL_CHANNEL parameters */
364 #define MISDN_CTRL_GETOP                0x0000
365 #define MISDN_CTRL_LOOP                 0x0001
366 #define MISDN_CTRL_CONNECT              0x0002
367 #define MISDN_CTRL_DISCONNECT           0x0004
368 #define MISDN_CTRL_RX_BUFFER            0x0008
369 #define MISDN_CTRL_PCMCONNECT           0x0010
370 #define MISDN_CTRL_PCMDISCONNECT        0x0020
371 #define MISDN_CTRL_SETPEER              0x0040
372 #define MISDN_CTRL_UNSETPEER            0x0080
373 #define MISDN_CTRL_RX_OFF               0x0100
374 #define MISDN_CTRL_FILL_EMPTY           0x0200
375 #define MISDN_CTRL_GETPEER              0x0400
376 #define MISDN_CTRL_L1_TIMER3            0x0800
377 #define MISDN_CTRL_HW_FEATURES_OP       0x2000
378 #define MISDN_CTRL_HW_FEATURES          0x2001
379 #define MISDN_CTRL_HFC_OP               0x4000
380 #define MISDN_CTRL_HFC_PCM_CONN         0x4001
381 #define MISDN_CTRL_HFC_PCM_DISC         0x4002
382 #define MISDN_CTRL_HFC_CONF_JOIN        0x4003
383 #define MISDN_CTRL_HFC_CONF_SPLIT       0x4004
384 #define MISDN_CTRL_HFC_RECEIVE_OFF      0x4005
385 #define MISDN_CTRL_HFC_RECEIVE_ON       0x4006
386 #define MISDN_CTRL_HFC_ECHOCAN_ON       0x4007
387 #define MISDN_CTRL_HFC_ECHOCAN_OFF      0x4008
388 #define MISDN_CTRL_HFC_WD_INIT          0x4009
389 #define MISDN_CTRL_HFC_WD_RESET         0x400A
390 
391 /* special RX buffer value for MISDN_CTRL_RX_BUFFER request.p1 is the minimum
392  * buffer size request.p2 the maximum. Using  MISDN_CTRL_RX_SIZE_IGNORE will
393  * not change the value, but still read back the actual stetting.
394  */
395 #define MISDN_CTRL_RX_SIZE_IGNORE       -1
396 
397 /* socket options */
398 #define MISDN_TIME_STAMP                0x0001
399 
400 struct mISDN_ctrl_req {
401         int             op;
402         int             channel;
403         int             p1;
404         int             p2;
405 };
406 
407 /* muxer options */
408 #define MISDN_OPT_ALL           1
409 #define MISDN_OPT_TEIMGR        2
410 
411 #ifdef __KERNEL__
412 #include <linux/list.h>
413 #include <linux/skbuff.h>
414 #include <linux/net.h>
415 #include <net/sock.h>
416 #include <linux/completion.h>
417 
418 #define DEBUG_CORE              0x000000ff
419 #define DEBUG_CORE_FUNC         0x00000002
420 #define DEBUG_SOCKET            0x00000004
421 #define DEBUG_MANAGER           0x00000008
422 #define DEBUG_SEND_ERR          0x00000010
423 #define DEBUG_MSG_THREAD        0x00000020
424 #define DEBUG_QUEUE_FUNC        0x00000040
425 #define DEBUG_L1                0x0000ff00
426 #define DEBUG_L1_FSM            0x00000200
427 #define DEBUG_L2                0x00ff0000
428 #define DEBUG_L2_FSM            0x00020000
429 #define DEBUG_L2_CTRL           0x00040000
430 #define DEBUG_L2_RECV           0x00080000
431 #define DEBUG_L2_TEI            0x00100000
432 #define DEBUG_L2_TEIFSM         0x00200000
433 #define DEBUG_TIMER             0x01000000
434 #define DEBUG_CLOCK             0x02000000
435 
436 #define mISDN_HEAD_P(s)         ((struct mISDNhead *)&s->cb[0])
437 #define mISDN_HEAD_PRIM(s)      (((struct mISDNhead *)&s->cb[0])->prim)
438 #define mISDN_HEAD_ID(s)        (((struct mISDNhead *)&s->cb[0])->id)
439 
440 /* socket states */
441 #define MISDN_OPEN      1
442 #define MISDN_BOUND     2
443 #define MISDN_CLOSED    3
444 
445 struct mISDNchannel;
446 struct mISDNdevice;
447 struct mISDNstack;
448 struct mISDNclock;
449 
450 struct channel_req {
451         u_int                   protocol;
452         struct sockaddr_mISDN   adr;
453         struct mISDNchannel     *ch;
454 };
455 
456 typedef int     (ctrl_func_t)(struct mISDNchannel *, u_int, void *);
457 typedef int     (send_func_t)(struct mISDNchannel *, struct sk_buff *);
458 typedef int     (create_func_t)(struct channel_req *);
459 
460 struct Bprotocol {
461         struct list_head        list;
462         char                    *name;
463         u_int                   Bprotocols;
464         create_func_t           *create;
465 };
466 
467 struct mISDNchannel {
468         struct list_head        list;
469         u_int                   protocol;
470         u_int                   nr;
471         u_long                  opt;
472         u_int                   addr;
473         struct mISDNstack       *st;
474         struct mISDNchannel     *peer;
475         send_func_t             *send;
476         send_func_t             *recv;
477         ctrl_func_t             *ctrl;
478 };
479 
480 struct mISDN_sock_list {
481         struct hlist_head       head;
482         rwlock_t                lock;
483 };
484 
485 struct mISDN_sock {
486         struct sock             sk;
487         struct mISDNchannel     ch;
488         u_int                   cmask;
489         struct mISDNdevice      *dev;
490 };
491 
492 
493 
494 struct mISDNdevice {
495         struct mISDNchannel     D;
496         u_int                   id;
497         u_int                   Dprotocols;
498         u_int                   Bprotocols;
499         u_int                   nrbchan;
500         u_char                  channelmap[MISDN_CHMAP_SIZE];
501         struct list_head        bchannels;
502         struct mISDNchannel     *teimgr;
503         struct device           dev;
504 };
505 
506 struct mISDNstack {
507         u_long                  status;
508         struct mISDNdevice      *dev;
509         struct task_struct      *thread;
510         struct completion       *notify;
511         wait_queue_head_t       workq;
512         struct sk_buff_head     msgq;
513         struct list_head        layer2;
514         struct mISDNchannel     *layer1;
515         struct mISDNchannel     own;
516         struct mutex            lmutex; /* protect lists */
517         struct mISDN_sock_list  l1sock;
518 #ifdef MISDN_MSG_STATS
519         u_int                   msg_cnt;
520         u_int                   sleep_cnt;
521         u_int                   stopped_cnt;
522 #endif
523 };
524 
525 typedef int     (clockctl_func_t)(void *, int);
526 
527 struct  mISDNclock {
528         struct list_head        list;
529         char                    name[64];
530         int                     pri;
531         clockctl_func_t         *ctl;
532         void                    *priv;
533 };
534 
535 /* global alloc/queue functions */
536 
537 static inline struct sk_buff *
538 mI_alloc_skb(unsigned int len, gfp_t gfp_mask)
539 {
540         struct sk_buff  *skb;
541 
542         skb = alloc_skb(len + MISDN_HEADER_LEN, gfp_mask);
543         if (likely(skb))
544                 skb_reserve(skb, MISDN_HEADER_LEN);
545         return skb;
546 }
547 
548 static inline struct sk_buff *
549 _alloc_mISDN_skb(u_int prim, u_int id, u_int len, void *dp, gfp_t gfp_mask)
550 {
551         struct sk_buff  *skb = mI_alloc_skb(len, gfp_mask);
552         struct mISDNhead *hh;
553 
554         if (!skb)
555                 return NULL;
556         if (len)
557                 skb_put_data(skb, dp, len);
558         hh = mISDN_HEAD_P(skb);
559         hh->prim = prim;
560         hh->id = id;
561         return skb;
562 }
563 
564 static inline void
565 _queue_data(struct mISDNchannel *ch, u_int prim,
566     u_int id, u_int len, void *dp, gfp_t gfp_mask)
567 {
568         struct sk_buff          *skb;
569 
570         if (!ch->peer)
571                 return;
572         skb = _alloc_mISDN_skb(prim, id, len, dp, gfp_mask);
573         if (!skb)
574                 return;
575         if (ch->recv(ch->peer, skb))
576                 dev_kfree_skb(skb);
577 }
578 
579 /* global register/unregister functions */
580 
581 extern int      mISDN_register_device(struct mISDNdevice *,
582                                         struct device *parent, char *name);
583 extern void     mISDN_unregister_device(struct mISDNdevice *);
584 extern int      mISDN_register_Bprotocol(struct Bprotocol *);
585 extern void     mISDN_unregister_Bprotocol(struct Bprotocol *);
586 extern struct mISDNclock *mISDN_register_clock(char *, int, clockctl_func_t *,
587                                                 void *);
588 extern void     mISDN_unregister_clock(struct mISDNclock *);
589 
590 static inline struct mISDNdevice *dev_to_mISDN(struct device *dev)
591 {
592         if (dev)
593                 return dev_get_drvdata(dev);
594         else
595                 return NULL;
596 }
597 
598 extern void     set_channel_address(struct mISDNchannel *, u_int, u_int);
599 extern void     mISDN_clock_update(struct mISDNclock *, int, ktime_t *);
600 extern unsigned short mISDN_clock_get(void);
601 extern const char *mISDNDevName4ch(struct mISDNchannel *);
602 
603 #endif /* __KERNEL__ */
604 #endif /* mISDNIF_H */
605 

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