1 /* $Id: capiutil.c,v 1.13.6.4 2001/09/23 22:24:33 kai Exp $
3 * CAPI 2.0 convert capi message to capi message struct
5 * From CAPI 2.0 Development Kit AVM 1995 (msg.c)
6 * Rewritten for Linux 1996 by Carsten Paeth <calle@calle.de>
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
13 #include <linux/module.h>
14 #include <linux/string.h>
15 #include <linux/ctype.h>
16 #include <linux/stddef.h>
17 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/isdn/capiutil.h>
21 #include <linux/slab.h>
23 /* from CAPI2.0 DDK AVM Berlin GmbH */
46 {_CDWORD, offsetof(_cmsg, adr.adrController)},
48 {_CMSTRUCT, offsetof(_cmsg, AdditionalInfo)},
50 {_CSTRUCT, offsetof(_cmsg, B1configuration)},
52 {_CWORD, offsetof(_cmsg, B1protocol)},
54 {_CSTRUCT, offsetof(_cmsg, B2configuration)},
56 {_CWORD, offsetof(_cmsg, B2protocol)},
58 {_CSTRUCT, offsetof(_cmsg, B3configuration)},
60 {_CWORD, offsetof(_cmsg, B3protocol)},
62 {_CSTRUCT, offsetof(_cmsg, BC)},
64 {_CSTRUCT, offsetof(_cmsg, BChannelinformation)},
66 {_CMSTRUCT, offsetof(_cmsg, BProtocol)},
68 {_CSTRUCT, offsetof(_cmsg, CalledPartyNumber)},
70 {_CSTRUCT, offsetof(_cmsg, CalledPartySubaddress)},
72 {_CSTRUCT, offsetof(_cmsg, CallingPartyNumber)},
74 {_CSTRUCT, offsetof(_cmsg, CallingPartySubaddress)},
76 {_CDWORD, offsetof(_cmsg, CIPmask)},
78 {_CDWORD, offsetof(_cmsg, CIPmask2)},
80 {_CWORD, offsetof(_cmsg, CIPValue)},
82 {_CDWORD, offsetof(_cmsg, Class)},
84 {_CSTRUCT, offsetof(_cmsg, ConnectedNumber)},
86 {_CSTRUCT, offsetof(_cmsg, ConnectedSubaddress)},
88 {_CDWORD, offsetof(_cmsg, Data)},
90 {_CWORD, offsetof(_cmsg, DataHandle)},
92 {_CWORD, offsetof(_cmsg, DataLength)},
94 {_CSTRUCT, offsetof(_cmsg, FacilityConfirmationParameter)},
96 {_CSTRUCT, offsetof(_cmsg, Facilitydataarray)},
98 {_CSTRUCT, offsetof(_cmsg, FacilityIndicationParameter)},
100 {_CSTRUCT, offsetof(_cmsg, FacilityRequestParameter)},
102 {_CWORD, offsetof(_cmsg, FacilitySelector)},
104 {_CWORD, offsetof(_cmsg, Flags)},
106 {_CDWORD, offsetof(_cmsg, Function)},
108 {_CSTRUCT, offsetof(_cmsg, HLC)},
110 {_CWORD, offsetof(_cmsg, Info)},
112 {_CSTRUCT, offsetof(_cmsg, InfoElement)},
114 {_CDWORD, offsetof(_cmsg, InfoMask)},
116 {_CWORD, offsetof(_cmsg, InfoNumber)},
118 {_CSTRUCT, offsetof(_cmsg, Keypadfacility)},
120 {_CSTRUCT, offsetof(_cmsg, LLC)},
122 {_CSTRUCT, offsetof(_cmsg, ManuData)},
124 {_CDWORD, offsetof(_cmsg, ManuID)},
126 {_CSTRUCT, offsetof(_cmsg, NCPI)},
128 {_CWORD, offsetof(_cmsg, Reason)},
130 {_CWORD, offsetof(_cmsg, Reason_B3)},
132 {_CWORD, offsetof(_cmsg, Reject)},
134 {_CSTRUCT, offsetof(_cmsg, Useruserdata)}
137 static unsigned char *cpars[] =
139 /* ALERT_REQ */ [0x01] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
140 /* CONNECT_REQ */ [0x02] = "\x03\x14\x0e\x10\x0f\x11\x0d\x06\x08\x0a\x05\x07\x09\x01\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
141 /* DISCONNECT_REQ */ [0x04] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
142 /* LISTEN_REQ */ [0x05] = "\x03\x25\x12\x13\x10\x11\x01",
143 /* INFO_REQ */ [0x08] = "\x03\x0e\x04\x0c\x27\x2f\x1c\x01\x01",
144 /* FACILITY_REQ */ [0x09] = "\x03\x1f\x1e\x01",
145 /* SELECT_B_PROTOCOL_REQ */ [0x0a] = "\x03\x0d\x06\x08\x0a\x05\x07\x09\x01\x01",
146 /* CONNECT_B3_REQ */ [0x0b] = "\x03\x2b\x01",
147 /* DISCONNECT_B3_REQ */ [0x0d] = "\x03\x2b\x01",
148 /* DATA_B3_REQ */ [0x0f] = "\x03\x18\x1a\x19\x20\x01",
149 /* RESET_B3_REQ */ [0x10] = "\x03\x2b\x01",
150 /* ALERT_CONF */ [0x13] = "\x03\x23\x01",
151 /* CONNECT_CONF */ [0x14] = "\x03\x23\x01",
152 /* DISCONNECT_CONF */ [0x16] = "\x03\x23\x01",
153 /* LISTEN_CONF */ [0x17] = "\x03\x23\x01",
154 /* MANUFACTURER_REQ */ [0x18] = "\x03\x2a\x15\x21\x29\x01",
155 /* INFO_CONF */ [0x1a] = "\x03\x23\x01",
156 /* FACILITY_CONF */ [0x1b] = "\x03\x23\x1f\x1b\x01",
157 /* SELECT_B_PROTOCOL_CONF */ [0x1c] = "\x03\x23\x01",
158 /* CONNECT_B3_CONF */ [0x1d] = "\x03\x23\x01",
159 /* DISCONNECT_B3_CONF */ [0x1f] = "\x03\x23\x01",
160 /* DATA_B3_CONF */ [0x21] = "\x03\x19\x23\x01",
161 /* RESET_B3_CONF */ [0x22] = "\x03\x23\x01",
162 /* CONNECT_IND */ [0x26] = "\x03\x14\x0e\x10\x0f\x11\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
163 /* CONNECT_ACTIVE_IND */ [0x27] = "\x03\x16\x17\x28\x01",
164 /* DISCONNECT_IND */ [0x28] = "\x03\x2c\x01",
165 /* MANUFACTURER_CONF */ [0x2a] = "\x03\x2a\x15\x21\x29\x01",
166 /* INFO_IND */ [0x2c] = "\x03\x26\x24\x01",
167 /* FACILITY_IND */ [0x2d] = "\x03\x1f\x1d\x01",
168 /* CONNECT_B3_IND */ [0x2f] = "\x03\x2b\x01",
169 /* CONNECT_B3_ACTIVE_IND */ [0x30] = "\x03\x2b\x01",
170 /* DISCONNECT_B3_IND */ [0x31] = "\x03\x2d\x2b\x01",
171 /* DATA_B3_IND */ [0x33] = "\x03\x18\x1a\x19\x20\x01",
172 /* RESET_B3_IND */ [0x34] = "\x03\x2b\x01",
173 /* CONNECT_B3_T90_ACTIVE_IND */ [0x35] = "\x03\x2b\x01",
174 /* CONNECT_RESP */ [0x38] = "\x03\x2e\x0d\x06\x08\x0a\x05\x07\x09\x01\x16\x17\x28\x04\x0c\x27\x2f\x1c\x01\x01",
175 /* CONNECT_ACTIVE_RESP */ [0x39] = "\x03\x01",
176 /* DISCONNECT_RESP */ [0x3a] = "\x03\x01",
177 /* MANUFACTURER_IND */ [0x3c] = "\x03\x2a\x15\x21\x29\x01",
178 /* INFO_RESP */ [0x3e] = "\x03\x01",
179 /* FACILITY_RESP */ [0x3f] = "\x03\x1f\x01",
180 /* CONNECT_B3_RESP */ [0x41] = "\x03\x2e\x2b\x01",
181 /* CONNECT_B3_ACTIVE_RESP */ [0x42] = "\x03\x01",
182 /* DISCONNECT_B3_RESP */ [0x43] = "\x03\x01",
183 /* DATA_B3_RESP */ [0x45] = "\x03\x19\x01",
184 /* RESET_B3_RESP */ [0x46] = "\x03\x01",
185 /* CONNECT_B3_T90_ACTIVE_RESP */ [0x47] = "\x03\x01",
186 /* MANUFACTURER_RESP */ [0x4e] = "\x03\x2a\x15\x21\x29\x01",
189 /*-------------------------------------------------------*/
191 #define byteTLcpy(x, y) *(u8 *)(x) = *(u8 *)(y);
192 #define wordTLcpy(x, y) *(u16 *)(x) = *(u16 *)(y);
193 #define dwordTLcpy(x, y) memcpy(x, y, 4);
194 #define structTLcpy(x, y, l) memcpy(x, y, l)
195 #define structTLcpyovl(x, y, l) memmove(x, y, l)
197 #define byteTRcpy(x, y) *(u8 *)(y) = *(u8 *)(x);
198 #define wordTRcpy(x, y) *(u16 *)(y) = *(u16 *)(x);
199 #define dwordTRcpy(x, y) memcpy(y, x, 4);
200 #define structTRcpy(x, y, l) memcpy(y, x, l)
201 #define structTRcpyovl(x, y, l) memmove(y, x, l)
203 /*-------------------------------------------------------*/
204 static unsigned command_2_index(unsigned c, unsigned sc)
207 c = 0x9 + (c & 0x0f);
213 return (sc & 3) * (0x9 + 0x9) + c;
216 /*-------------------------------------------------------*/
217 #define TYP (cdef[cmsg->par[cmsg->p]].typ)
218 #define OFF (((u8 *)cmsg) + cdef[cmsg->par[cmsg->p]].off)
220 static void jumpcstruct(_cmsg *cmsg)
223 for (cmsg->p++, layer = 1; layer;) {
224 /* $$$$$ assert (cmsg->p); */
236 /*-------------------------------------------------------*/
237 static void pars_2_message(_cmsg *cmsg)
240 for (; TYP != _CEND; cmsg->p++) {
243 byteTLcpy(cmsg->m + cmsg->l, OFF);
247 wordTLcpy(cmsg->m + cmsg->l, OFF);
251 dwordTLcpy(cmsg->m + cmsg->l, OFF);
255 if (*(u8 **) OFF == NULL) {
256 *(cmsg->m + cmsg->l) = '\0';
258 } else if (**(_cstruct *) OFF != 0xff) {
259 structTLcpy(cmsg->m + cmsg->l, *(_cstruct *) OFF, 1 + **(_cstruct *) OFF);
260 cmsg->l += 1 + **(_cstruct *) OFF;
262 _cstruct s = *(_cstruct *) OFF;
263 structTLcpy(cmsg->m + cmsg->l, s, 3 + *(u16 *) (s + 1));
264 cmsg->l += 3 + *(u16 *) (s + 1);
268 /*----- Metastruktur 0 -----*/
269 if (*(_cmstruct *) OFF == CAPI_DEFAULT) {
270 *(cmsg->m + cmsg->l) = '\0';
274 /*----- Metastruktur wird composed -----*/
276 unsigned _l = cmsg->l;
280 pars_2_message(cmsg);
281 _ls = cmsg->l - _l - 1;
283 (cmsg->m + _l)[0] = (u8) _ls;
285 structTLcpyovl(cmsg->m + _l + 3, cmsg->m + _l + 1, _ls);
286 (cmsg->m + _l)[0] = 0xff;
287 wordTLcpy(cmsg->m + _l + 1, &_ls);
296 * capi_cmsg2message() - assemble CAPI 2.0 message from _cmsg structure
297 * @cmsg: _cmsg structure
298 * @msg: buffer for assembled message
300 * Return value: 0 for success
303 unsigned capi_cmsg2message(_cmsg *cmsg, u8 *msg)
308 cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
310 pars_2_message(cmsg);
312 wordTLcpy(msg + 0, &cmsg->l);
313 byteTLcpy(cmsg->m + 4, &cmsg->Command);
314 byteTLcpy(cmsg->m + 5, &cmsg->Subcommand);
315 wordTLcpy(cmsg->m + 2, &cmsg->ApplId);
316 wordTLcpy(cmsg->m + 6, &cmsg->Messagenumber);
321 /*-------------------------------------------------------*/
322 static void message_2_pars(_cmsg *cmsg)
324 for (; TYP != _CEND; cmsg->p++) {
328 byteTRcpy(cmsg->m + cmsg->l, OFF);
332 wordTRcpy(cmsg->m + cmsg->l, OFF);
336 dwordTRcpy(cmsg->m + cmsg->l, OFF);
340 *(u8 **) OFF = cmsg->m + cmsg->l;
342 if (cmsg->m[cmsg->l] != 0xff)
343 cmsg->l += 1 + cmsg->m[cmsg->l];
345 cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1);
348 /*----- Metastruktur 0 -----*/
349 if (cmsg->m[cmsg->l] == '\0') {
350 *(_cmstruct *) OFF = CAPI_DEFAULT;
354 unsigned _l = cmsg->l;
355 *(_cmstruct *) OFF = CAPI_COMPOSE;
356 cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
358 message_2_pars(cmsg);
366 * capi_message2cmsg() - disassemble CAPI 2.0 message into _cmsg structure
367 * @cmsg: _cmsg structure
368 * @msg: buffer for assembled message
370 * Return value: 0 for success
373 unsigned capi_message2cmsg(_cmsg *cmsg, u8 *msg)
375 memset(cmsg, 0, sizeof(_cmsg));
379 byteTRcpy(cmsg->m + 4, &cmsg->Command);
380 byteTRcpy(cmsg->m + 5, &cmsg->Subcommand);
381 cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
383 message_2_pars(cmsg);
385 wordTRcpy(msg + 0, &cmsg->l);
386 wordTRcpy(cmsg->m + 2, &cmsg->ApplId);
387 wordTRcpy(cmsg->m + 6, &cmsg->Messagenumber);
393 * capi_cmsg_header() - initialize header part of _cmsg structure
394 * @cmsg: _cmsg structure
395 * @_ApplId: ApplID field value
396 * @_Command: Command field value
397 * @_Subcommand: Subcommand field value
398 * @_Messagenumber: Message Number field value
399 * @_Controller: Controller/PLCI/NCCI field value
401 * Return value: 0 for success
404 unsigned capi_cmsg_header(_cmsg *cmsg, u16 _ApplId,
405 u8 _Command, u8 _Subcommand,
406 u16 _Messagenumber, u32 _Controller)
408 memset(cmsg, 0, sizeof(_cmsg));
409 cmsg->ApplId = _ApplId;
410 cmsg->Command = _Command;
411 cmsg->Subcommand = _Subcommand;
412 cmsg->Messagenumber = _Messagenumber;
413 cmsg->adr.adrController = _Controller;
417 /*-------------------------------------------------------*/
419 static char *mnames[] =
421 [0x01] = "ALERT_REQ",
422 [0x02] = "CONNECT_REQ",
423 [0x04] = "DISCONNECT_REQ",
424 [0x05] = "LISTEN_REQ",
426 [0x09] = "FACILITY_REQ",
427 [0x0a] = "SELECT_B_PROTOCOL_REQ",
428 [0x0b] = "CONNECT_B3_REQ",
429 [0x0d] = "DISCONNECT_B3_REQ",
430 [0x0f] = "DATA_B3_REQ",
431 [0x10] = "RESET_B3_REQ",
432 [0x13] = "ALERT_CONF",
433 [0x14] = "CONNECT_CONF",
434 [0x16] = "DISCONNECT_CONF",
435 [0x17] = "LISTEN_CONF",
436 [0x18] = "MANUFACTURER_REQ",
437 [0x1a] = "INFO_CONF",
438 [0x1b] = "FACILITY_CONF",
439 [0x1c] = "SELECT_B_PROTOCOL_CONF",
440 [0x1d] = "CONNECT_B3_CONF",
441 [0x1f] = "DISCONNECT_B3_CONF",
442 [0x21] = "DATA_B3_CONF",
443 [0x22] = "RESET_B3_CONF",
444 [0x26] = "CONNECT_IND",
445 [0x27] = "CONNECT_ACTIVE_IND",
446 [0x28] = "DISCONNECT_IND",
447 [0x2a] = "MANUFACTURER_CONF",
449 [0x2d] = "FACILITY_IND",
450 [0x2f] = "CONNECT_B3_IND",
451 [0x30] = "CONNECT_B3_ACTIVE_IND",
452 [0x31] = "DISCONNECT_B3_IND",
453 [0x33] = "DATA_B3_IND",
454 [0x34] = "RESET_B3_IND",
455 [0x35] = "CONNECT_B3_T90_ACTIVE_IND",
456 [0x38] = "CONNECT_RESP",
457 [0x39] = "CONNECT_ACTIVE_RESP",
458 [0x3a] = "DISCONNECT_RESP",
459 [0x3c] = "MANUFACTURER_IND",
460 [0x3e] = "INFO_RESP",
461 [0x3f] = "FACILITY_RESP",
462 [0x41] = "CONNECT_B3_RESP",
463 [0x42] = "CONNECT_B3_ACTIVE_RESP",
464 [0x43] = "DISCONNECT_B3_RESP",
465 [0x45] = "DATA_B3_RESP",
466 [0x46] = "RESET_B3_RESP",
467 [0x47] = "CONNECT_B3_T90_ACTIVE_RESP",
468 [0x4e] = "MANUFACTURER_RESP"
472 * capi_cmd2str() - convert CAPI 2.0 command/subcommand number to name
473 * @cmd: command number
474 * @subcmd: subcommand number
476 * Return value: static string, NULL if command/subcommand unknown
479 char *capi_cmd2str(u8 cmd, u8 subcmd)
481 return mnames[command_2_index(cmd, subcmd)];
485 /*-------------------------------------------------------*/
487 #ifdef CONFIG_CAPI_TRACE
489 /*-------------------------------------------------------*/
491 static char *pnames[] =
496 /*03 */ "Controller/PLCI/NCCI",
497 /*04 */ "AdditionalInfo",
498 /*05 */ "B1configuration",
499 /*06 */ "B1protocol",
500 /*07 */ "B2configuration",
501 /*08 */ "B2protocol",
502 /*09 */ "B3configuration",
503 /*0a */ "B3protocol",
505 /*0c */ "BChannelinformation",
507 /*0e */ "CalledPartyNumber",
508 /*0f */ "CalledPartySubaddress",
509 /*10 */ "CallingPartyNumber",
510 /*11 */ "CallingPartySubaddress",
515 /*16 */ "ConnectedNumber",
516 /*17 */ "ConnectedSubaddress",
518 /*19 */ "DataHandle",
519 /*1a */ "DataLength",
520 /*1b */ "FacilityConfirmationParameter",
521 /*1c */ "Facilitydataarray",
522 /*1d */ "FacilityIndicationParameter",
523 /*1e */ "FacilityRequestParameter",
524 /*1f */ "FacilitySelector",
529 /*24 */ "InfoElement",
531 /*26 */ "InfoNumber",
532 /*27 */ "Keypadfacility",
540 /*2f */ "Useruserdata"
547 /*-------------------------------------------------------*/
548 static _cdebbuf *bufprint(_cdebbuf *cdb, char *fmt, ...)
556 r = cdb->size - cdb->pos;
557 n = vsnprintf(cdb->p, r, fmt, f);
560 /* truncated, need bigger buffer */
561 size_t ns = 2 * cdb->size;
564 while ((ns - cdb->pos) <= n)
566 nb = kmalloc(ns, GFP_ATOMIC);
571 memcpy(nb, cdb->buf, cdb->pos);
575 cdb->p = cdb->buf + cdb->pos;
578 r = cdb->size - cdb->pos;
579 n = vsnprintf(cdb->p, r, fmt, f);
587 static _cdebbuf *printstructlen(_cdebbuf *cdb, u8 *m, unsigned len)
593 for (; len; len--, m++)
594 if (isalnum(*m) || *m == ' ') {
596 cdb = bufprint(cdb, ">");
597 cdb = bufprint(cdb, "%c", *m);
601 cdb = bufprint(cdb, "<%02x", *m);
603 cdb = bufprint(cdb, " %02x", *m);
607 cdb = bufprint(cdb, ">");
611 static _cdebbuf *printstruct(_cdebbuf *cdb, u8 *m)
619 len = ((u16 *) (m + 1))[0];
622 cdb = printstructlen(cdb, m, len);
626 /*-------------------------------------------------------*/
627 #define NAME (pnames[cmsg->par[cmsg->p]])
629 static _cdebbuf *protocol_message_2_pars(_cdebbuf *cdb, _cmsg *cmsg, int level)
631 for (; TYP != _CEND; cmsg->p++) {
632 int slen = 29 + 3 - level;
637 cdb = bufprint(cdb, " ");
638 for (i = 0; i < level - 1; i++)
639 cdb = bufprint(cdb, " ");
643 cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l));
647 cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l));
651 cdb = bufprint(cdb, "%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l));
655 cdb = bufprint(cdb, "%-*s = ", slen, NAME);
656 if (cmsg->m[cmsg->l] == '\0')
657 cdb = bufprint(cdb, "default");
659 cdb = printstruct(cdb, cmsg->m + cmsg->l);
660 cdb = bufprint(cdb, "\n");
661 if (cmsg->m[cmsg->l] != 0xff)
662 cmsg->l += 1 + cmsg->m[cmsg->l];
664 cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1);
669 /*----- Metastruktur 0 -----*/
670 if (cmsg->m[cmsg->l] == '\0') {
671 cdb = bufprint(cdb, "%-*s = default\n", slen, NAME);
676 unsigned _l = cmsg->l;
677 cdb = bufprint(cdb, "%-*s\n", slen, name);
678 cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
680 cdb = protocol_message_2_pars(cdb, cmsg, level + 1);
687 /*-------------------------------------------------------*/
689 static _cdebbuf *g_debbuf;
690 static u_long g_debbuf_lock;
691 static _cmsg *g_cmsg;
693 static _cdebbuf *cdebbuf_alloc(void)
697 if (likely(!test_and_set_bit(1, &g_debbuf_lock))) {
701 cdb = kmalloc(sizeof(_cdebbuf), GFP_ATOMIC);
704 cdb->buf = kmalloc(CDEBUG_SIZE, GFP_ATOMIC);
709 cdb->size = CDEBUG_SIZE;
718 * cdebbuf_free() - free CAPI debug buffer
719 * @cdb: buffer to free
722 void cdebbuf_free(_cdebbuf *cdb)
724 if (likely(cdb == g_debbuf)) {
725 test_and_clear_bit(1, &g_debbuf_lock);
735 * capi_message2str() - format CAPI 2.0 message for printing
736 * @msg: CAPI 2.0 message
738 * Allocates a CAPI debug buffer and fills it with a printable representation
739 * of the CAPI 2.0 message in @msg.
740 * Return value: allocated debug buffer, NULL on error
741 * The returned buffer should be freed by a call to cdebbuf_free() after use.
744 _cdebbuf *capi_message2str(u8 *msg)
749 cdb = cdebbuf_alloc();
752 if (likely(cdb == g_debbuf))
755 cmsg = kmalloc(sizeof(_cmsg), GFP_ATOMIC);
756 if (unlikely(!cmsg)) {
763 byteTRcpy(cmsg->m + 4, &cmsg->Command);
764 byteTRcpy(cmsg->m + 5, &cmsg->Subcommand);
765 cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
767 cdb = bufprint(cdb, "%-26s ID=%03d #0x%04x LEN=%04d\n",
768 mnames[command_2_index(cmsg->Command, cmsg->Subcommand)],
769 ((unsigned short *) msg)[1],
770 ((unsigned short *) msg)[3],
771 ((unsigned short *) msg)[0]);
773 cdb = protocol_message_2_pars(cdb, cmsg, 1);
774 if (unlikely(cmsg != g_cmsg))
780 * capi_cmsg2str() - format _cmsg structure for printing
781 * @cmsg: _cmsg structure
783 * Allocates a CAPI debug buffer and fills it with a printable representation
784 * of the CAPI 2.0 message stored in @cmsg by a previous call to
785 * capi_cmsg2message() or capi_message2cmsg().
786 * Return value: allocated debug buffer, NULL on error
787 * The returned buffer should be freed by a call to cdebbuf_free() after use.
790 _cdebbuf *capi_cmsg2str(_cmsg *cmsg)
795 return NULL; /* no message */
796 cdb = cdebbuf_alloc();
801 cdb = bufprint(cdb, "%s ID=%03d #0x%04x LEN=%04d\n",
802 mnames[command_2_index(cmsg->Command, cmsg->Subcommand)],
803 ((u16 *) cmsg->m)[1],
804 ((u16 *) cmsg->m)[3],
805 ((u16 *) cmsg->m)[0]);
806 cdb = protocol_message_2_pars(cdb, cmsg, 1);
810 int __init cdebug_init(void)
812 g_cmsg = kmalloc(sizeof(_cmsg), GFP_KERNEL);
815 g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL);
820 g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL);
821 if (!g_debbuf->buf) {
826 g_debbuf->size = CDEBUG_GSIZE;
827 g_debbuf->buf[0] = 0;
828 g_debbuf->p = g_debbuf->buf;
833 void __exit cdebug_exit(void)
836 kfree(g_debbuf->buf);
841 #else /* !CONFIG_CAPI_TRACE */
843 static _cdebbuf g_debbuf = {"CONFIG_CAPI_TRACE not enabled", NULL, 0, 0};
845 _cdebbuf *capi_message2str(u8 *msg)
850 _cdebbuf *capi_cmsg2str(_cmsg *cmsg)
855 void cdebbuf_free(_cdebbuf *cdb)
859 int __init cdebug_init(void)
864 void __exit cdebug_exit(void)
870 EXPORT_SYMBOL(cdebbuf_free);
871 EXPORT_SYMBOL(capi_cmsg2message);
872 EXPORT_SYMBOL(capi_message2cmsg);
873 EXPORT_SYMBOL(capi_cmsg_header);
874 EXPORT_SYMBOL(capi_cmd2str);
875 EXPORT_SYMBOL(capi_cmsg2str);
876 EXPORT_SYMBOL(capi_message2str);