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gigaset: announce if built with debugging
[deliverable/linux.git] / drivers / isdn / gigaset / ev-layer.c
CommitLineData
14fa73a7
HL		 1/*
2 * Stuff used by all variants of the driver
3 *
70440cf2 4 * Copyright (c) 2001 by Stefan Eilers,
14fa73a7
HL		 5 * Hansjoerg Lipp <hjlipp@web.de>,
6 * Tilman Schmidt <tilman@imap.cc>.
7 *
8 * =====================================================================
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 * =====================================================================
14fa73a7
HL		 14 */
15
16#include "gigaset.h"
17
18/* ========================================================== */
19/* bit masks for pending commands */
917f5085
TS		 20#define PC_DIAL 0x001
21#define PC_HUP 0x002
22#define PC_INIT 0x004
23#define PC_DLE0 0x008
24#define PC_DLE1 0x010
25#define PC_SHUTDOWN 0x020
26#define PC_ACCEPT 0x040
27#define PC_CID 0x080
28#define PC_NOCID 0x100
29#define PC_CIDMODE 0x200
30#define PC_UMMODE 0x400
14fa73a7
HL		 31
32/* types of modem responses */
917f5085
TS		 33#define RT_NOTHING 0
34#define RT_ZSAU 1
35#define RT_RING 2
36#define RT_NUMBER 3
37#define RT_STRING 4
38#define RT_HEX 5
39#define RT_ZCAU 6
14fa73a7
HL		 40
41/* Possible ASCII responses */
917f5085
TS		 42#define RSP_OK 0
43//#define RSP_BUSY 1
44//#define RSP_CONNECT 2
45#define RSP_ZGCI 3
46#define RSP_RING 4
47#define RSP_ZAOC 5
48#define RSP_ZCSTR 6
49#define RSP_ZCFGT 7
50#define RSP_ZCFG 8
51#define RSP_ZCCR 9
52#define RSP_EMPTY 10
53#define RSP_ZLOG 11
54#define RSP_ZCAU 12
55#define RSP_ZMWI 13
56#define RSP_ZABINFO 14
57#define RSP_ZSMLSTCHG 15
58#define RSP_VAR 100
59#define RSP_ZSAU (RSP_VAR + VAR_ZSAU)
60#define RSP_ZDLE (RSP_VAR + VAR_ZDLE)
61#define RSP_ZVLS (RSP_VAR + VAR_ZVLS)
62#define RSP_ZCTP (RSP_VAR + VAR_ZCTP)
63#define RSP_STR (RSP_VAR + VAR_NUM)
64#define RSP_NMBR (RSP_STR + STR_NMBR)
65#define RSP_ZCPN (RSP_STR + STR_ZCPN)
66#define RSP_ZCON (RSP_STR + STR_ZCON)
67#define RSP_ZBC (RSP_STR + STR_ZBC)
68#define RSP_ZHLC (RSP_STR + STR_ZHLC)
69#define RSP_ERROR -1 /* ERROR */
70#define RSP_WRONG_CID -2 /* unknown cid in cmd */
71//#define RSP_EMPTY -3
72#define RSP_UNKNOWN -4 /* unknown response */
73#define RSP_FAIL -5 /* internal error */
74#define RSP_INVAL -6 /* invalid response */
75
76#define RSP_NONE -19
77#define RSP_STRING -20
78#define RSP_NULL -21
79//#define RSP_RETRYFAIL -22
80//#define RSP_RETRY -23
81//#define RSP_SKIP -24
82#define RSP_INIT -27
83#define RSP_ANY -26
84#define RSP_LAST -28
85#define RSP_NODEV -9
14fa73a7
HL		 86
87/* actions for process_response */
88#define ACT_NOTHING 0
89#define ACT_SETDLE1 1
90#define ACT_SETDLE0 2
91#define ACT_FAILINIT 3
92#define ACT_HUPMODEM 4
93#define ACT_CONFIGMODE 5
94#define ACT_INIT 6
95#define ACT_DLE0 7
96#define ACT_DLE1 8
97#define ACT_FAILDLE0 9
98#define ACT_FAILDLE1 10
99#define ACT_RING 11
100#define ACT_CID 12
101#define ACT_FAILCID 13
102#define ACT_SDOWN 14
103#define ACT_FAILSDOWN 15
104#define ACT_DEBUG 16
105#define ACT_WARN 17
106#define ACT_DIALING 18
107#define ACT_ABORTDIAL 19
108#define ACT_DISCONNECT 20
109#define ACT_CONNECT 21
110#define ACT_REMOTEREJECT 22
917f5085 111#define ACT_CONNTIMEOUT 23
14fa73a7
HL		 112#define ACT_REMOTEHUP 24
113#define ACT_ABORTHUP 25
114#define ACT_ICALL 26
115#define ACT_ACCEPTED 27
116#define ACT_ABORTACCEPT 28
117#define ACT_TIMEOUT 29
118#define ACT_GETSTRING 30
119#define ACT_SETVER 31
120#define ACT_FAILVER 32
121#define ACT_GOTVER 33
122#define ACT_TEST 34
123#define ACT_ERROR 35
124#define ACT_ABORTCID 36
125#define ACT_ZCAU 37
917f5085
TS		 126#define ACT_NOTIFY_BC_DOWN 38
127#define ACT_NOTIFY_BC_UP 39
128#define ACT_DIAL 40
129#define ACT_ACCEPT 41
130#define ACT_PROTO_L2 42
131#define ACT_HUP 43
132#define ACT_IF_LOCK 44
133#define ACT_START 45
134#define ACT_STOP 46
135#define ACT_FAKEDLE0 47
136#define ACT_FAKEHUP 48
137#define ACT_FAKESDOWN 49
138#define ACT_SHUTDOWN 50
139#define ACT_PROC_CIDMODE 51
140#define ACT_UMODESET 52
141#define ACT_FAILUMODE 53
142#define ACT_CMODESET 54
143#define ACT_FAILCMODE 55
144#define ACT_IF_VER 56
14fa73a7
HL		 145#define ACT_CMD 100
146
147/* at command sequences */
917f5085
TS		 148#define SEQ_NONE 0
149#define SEQ_INIT 100
150#define SEQ_DLE0 200
151#define SEQ_DLE1 250
152#define SEQ_CID 300
153#define SEQ_NOCID 350
154#define SEQ_HUP 400
155#define SEQ_DIAL 600
156#define SEQ_ACCEPT 720
157#define SEQ_SHUTDOWN 500
158#define SEQ_CIDMODE 10
159#define SEQ_UMMODE 11
14fa73a7
HL		 160
161
162// 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid), 400: hup, 500: reset, 600: dial, 700: ring
528efc6a 163struct reply_t gigaset_tab_nocid[] =
14fa73a7
HL		 164{
165 /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
166
167 /* initialize device, set cid mode if possible */
168 //{RSP_INIT, -1, -1,100, 900, 0, {ACT_TEST}},
169 //{RSP_ERROR, 900,900, -1, 0, 0, {ACT_FAILINIT}},
170 //{RSP_OK, 900,900, -1, 100, INIT_TIMEOUT,
171 // {ACT_TIMEOUT}},
172
173 {RSP_INIT, -1, -1,SEQ_INIT, 100, INIT_TIMEOUT,
784d5858 174 {ACT_TIMEOUT}}, /* wait until device is ready */
14fa73a7
HL		 175
176 {EV_TIMEOUT, 100,100, -1, 101, 3, {0}, "Z\r"}, /* device in transparent mode? try to initialize it. */
177 {RSP_OK, 101,103, -1, 120, 5, {ACT_GETSTRING}, "+GMR\r"}, /* get version */
178
179 {EV_TIMEOUT, 101,101, -1, 102, 5, {0}, "Z\r"}, /* timeout => try once again. */
180 {RSP_ERROR, 101,101, -1, 102, 5, {0}, "Z\r"}, /* error => try once again. */
181
182 {EV_TIMEOUT, 102,102, -1, 108, 5, {ACT_SETDLE1}, "^SDLE=0\r"}, /* timeout => try again in DLE mode. */
183 {RSP_OK, 108,108, -1, 104,-1},
184 {RSP_ZDLE, 104,104, 0, 103, 5, {0}, "Z\r"},
185 {EV_TIMEOUT, 104,104, -1, 0, 0, {ACT_FAILINIT}},
186 {RSP_ERROR, 108,108, -1, 0, 0, {ACT_FAILINIT}},
187
188 {EV_TIMEOUT, 108,108, -1, 105, 2, {ACT_SETDLE0,
784d5858
TS		 189 ACT_HUPMODEM,
190 ACT_TIMEOUT}}, /* still timeout => connection in unimodem mode? */
14fa73a7
HL		 191 {EV_TIMEOUT, 105,105, -1, 103, 5, {0}, "Z\r"},
192
193 {RSP_ERROR, 102,102, -1, 107, 5, {0}, "^GETPRE\r"}, /* ERROR on ATZ => maybe in config mode? */
194 {RSP_OK, 107,107, -1, 0, 0, {ACT_CONFIGMODE}},
195 {RSP_ERROR, 107,107, -1, 0, 0, {ACT_FAILINIT}},
196 {EV_TIMEOUT, 107,107, -1, 0, 0, {ACT_FAILINIT}},
197
198 {RSP_ERROR, 103,103, -1, 0, 0, {ACT_FAILINIT}},
199 {EV_TIMEOUT, 103,103, -1, 0, 0, {ACT_FAILINIT}},
200
201 {RSP_STRING, 120,120, -1, 121,-1, {ACT_SETVER}},
202
203 {EV_TIMEOUT, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}},
204 {RSP_ERROR, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}},
205 {RSP_OK, 121,121, -1, 0, 0, {ACT_GOTVER, ACT_INIT}},
14fa73a7
HL		 206
207 /* leave dle mode */
208 {RSP_INIT, 0, 0,SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
209 {RSP_OK, 201,201, -1, 202,-1},
210 //{RSP_ZDLE, 202,202, 0, 202, 0, {ACT_ERROR}},//DELETE
211 {RSP_ZDLE, 202,202, 0, 0, 0, {ACT_DLE0}},
212 {RSP_NODEV, 200,249, -1, 0, 0, {ACT_FAKEDLE0}},
213 {RSP_ERROR, 200,249, -1, 0, 0, {ACT_FAILDLE0}},
214 {EV_TIMEOUT, 200,249, -1, 0, 0, {ACT_FAILDLE0}},
215
216 /* enter dle mode */
217 {RSP_INIT, 0, 0,SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"},
218 {RSP_OK, 251,251, -1, 252,-1},
219 {RSP_ZDLE, 252,252, 1, 0, 0, {ACT_DLE1}},
220 {RSP_ERROR, 250,299, -1, 0, 0, {ACT_FAILDLE1}},
221 {EV_TIMEOUT, 250,299, -1, 0, 0, {ACT_FAILDLE1}},
222
223 /* incoming call */
224 {RSP_RING, -1, -1, -1, -1,-1, {ACT_RING}},
225
226 /* get cid */
227 //{RSP_INIT, 0, 0,300, 901, 0, {ACT_TEST}},
228 //{RSP_ERROR, 901,901, -1, 0, 0, {ACT_FAILCID}},
229 //{RSP_OK, 901,901, -1, 301, 5, {0}, "^SGCI?\r"},
230
231 {RSP_INIT, 0, 0,SEQ_CID, 301, 5, {0}, "^SGCI?\r"},
232 {RSP_OK, 301,301, -1, 302,-1},
233 {RSP_ZGCI, 302,302, -1, 0, 0, {ACT_CID}},
234 {RSP_ERROR, 301,349, -1, 0, 0, {ACT_FAILCID}},
235 {EV_TIMEOUT, 301,349, -1, 0, 0, {ACT_FAILCID}},
236
237 /* enter cid mode */
238 {RSP_INIT, 0, 0,SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"},
239 {RSP_OK, 150,150, -1, 0, 0, {ACT_CMODESET}},
240 {RSP_ERROR, 150,150, -1, 0, 0, {ACT_FAILCMODE}},
241 {EV_TIMEOUT, 150,150, -1, 0, 0, {ACT_FAILCMODE}},
242
243 /* leave cid mode */
244 //{RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "^SGCI=0\r"},
245 {RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "Z\r"},
246 {RSP_OK, 160,160, -1, 0, 0, {ACT_UMODESET}},
247 {RSP_ERROR, 160,160, -1, 0, 0, {ACT_FAILUMODE}},
248 {EV_TIMEOUT, 160,160, -1, 0, 0, {ACT_FAILUMODE}},
249
250 /* abort getting cid */
251 {RSP_INIT, 0, 0,SEQ_NOCID, 0, 0, {ACT_ABORTCID}},
252
253 /* reset */
14fa73a7
HL		 254 {RSP_INIT, 0, 0,SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"},
255 {RSP_OK, 504,504, -1, 0, 0, {ACT_SDOWN}},
256 {RSP_ERROR, 501,599, -1, 0, 0, {ACT_FAILSDOWN}},
257 {EV_TIMEOUT, 501,599, -1, 0, 0, {ACT_FAILSDOWN}},
258 {RSP_NODEV, 501,599, -1, 0, 0, {ACT_FAKESDOWN}},
259
260 {EV_PROC_CIDMODE,-1, -1, -1, -1,-1, {ACT_PROC_CIDMODE}}, //FIXME
261 {EV_IF_LOCK, -1, -1, -1, -1,-1, {ACT_IF_LOCK}}, //FIXME
262 {EV_IF_VER, -1, -1, -1, -1,-1, {ACT_IF_VER}}, //FIXME
263 {EV_START, -1, -1, -1, -1,-1, {ACT_START}}, //FIXME
264 {EV_STOP, -1, -1, -1, -1,-1, {ACT_STOP}}, //FIXME
265 {EV_SHUTDOWN, -1, -1, -1, -1,-1, {ACT_SHUTDOWN}}, //FIXME
266
267 /* misc. */
268 {RSP_EMPTY, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
269 {RSP_ZCFGT, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
270 {RSP_ZCFG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
271 {RSP_ZLOG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
272 {RSP_ZMWI, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
273 {RSP_ZABINFO, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
274 {RSP_ZSMLSTCHG,-1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
275
276 {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}},
277 {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}},
278 {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}},
279 {RSP_LAST}
280};
281
282// 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring, 400: hup, 750: accepted icall
528efc6a 283struct reply_t gigaset_tab_cid[] =
14fa73a7
HL		 284{
285 /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
286
287 /* dial */
288 {EV_DIAL, -1, -1, -1, -1,-1, {ACT_DIAL}}, //FIXME
289 {RSP_INIT, 0, 0,SEQ_DIAL, 601, 5, {ACT_CMD+AT_BC}},
290 {RSP_OK, 601,601, -1, 602, 5, {ACT_CMD+AT_HLC}},
291 {RSP_NULL, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}},
292 {RSP_OK, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}},
293 {RSP_OK, 603,603, -1, 604, 5, {ACT_CMD+AT_TYPE}},
294 {RSP_OK, 604,604, -1, 605, 5, {ACT_CMD+AT_MSN}},
295 {RSP_OK, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}},
296 {RSP_NULL, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}},
bceb0f12 297 {RSP_OK, 606,606, -1, 607, 5, {0}, "+VLS=17\r"},
14fa73a7 298 {RSP_OK, 607,607, -1, 608,-1},
14fa73a7
HL		 299 {RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 609, 5, {ACT_CMD+AT_DIAL}},
300 {RSP_OK, 609,609, -1, 650, 0, {ACT_DIALING}},
301
14fa73a7
HL		 302 {RSP_ERROR, 601,609, -1, 0, 0, {ACT_ABORTDIAL}},
303 {EV_TIMEOUT, 601,609, -1, 0, 0, {ACT_ABORTDIAL}},
304
bceb0f12
TS		 305 /* optional dialing responses */
306 {EV_BC_OPEN, 650,650, -1, 651,-1},
307 {RSP_ZVLS, 608,651, 17, -1,-1, {ACT_DEBUG}},
308 {RSP_ZCTP, 609,651, -1, -1,-1, {ACT_DEBUG}},
309 {RSP_ZCPN, 609,651, -1, -1,-1, {ACT_DEBUG}},
310 {RSP_ZSAU, 650,651,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}},
311
312 /* connect */
313 {RSP_ZSAU, 650,650,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}},
314 {RSP_ZSAU, 651,651,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT,
315 ACT_NOTIFY_BC_UP}},
316 {RSP_ZSAU, 750,750,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}},
317 {RSP_ZSAU, 751,751,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT,
318 ACT_NOTIFY_BC_UP}},
319 {EV_BC_OPEN, 800,800, -1, 800,-1, {ACT_NOTIFY_BC_UP}},
14fa73a7
HL		 320
321 /* remote hangup */
bceb0f12
TS		 322 {RSP_ZSAU, 650,651,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT}},
323 {RSP_ZSAU, 750,751,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}},
14fa73a7
HL		 324 {RSP_ZSAU, 800,800,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}},
325
326 /* hangup */
327 {EV_HUP, -1, -1, -1, -1,-1, {ACT_HUP}}, //FIXME
328 {RSP_INIT, -1, -1,SEQ_HUP, 401, 5, {0}, "+VLS=0\r"}, /* hang up */ //-1,-1?
329 {RSP_OK, 401,401, -1, 402, 5},
330 {RSP_ZVLS, 402,402, 0, 403, 5},
331 {RSP_ZSAU, 403,403,ZSAU_DISCONNECT_REQ, -1,-1, {ACT_DEBUG}}, /* if not remote hup */
332 //{RSP_ZSAU, 403,403,ZSAU_NULL, 401, 0, {ACT_ERROR}}, //DELETE//FIXME -> DLE0 // should we do this _before_ hanging up for base driver?
333 {RSP_ZSAU, 403,403,ZSAU_NULL, 0, 0, {ACT_DISCONNECT}}, //FIXME -> DLE0 // should we do this _before_ hanging up for base driver?
334 {RSP_NODEV, 401,403, -1, 0, 0, {ACT_FAKEHUP}}, //FIXME -> DLE0 // should we do this _before_ hanging up for base driver?
335 {RSP_ERROR, 401,401, -1, 0, 0, {ACT_ABORTHUP}},
336 {EV_TIMEOUT, 401,403, -1, 0, 0, {ACT_ABORTHUP}},
337
338 {EV_BC_CLOSED, 0, 0, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME new constate + timeout
339
340 /* ring */
341 {RSP_ZBC, 700,700, -1, -1,-1, {0}},
342 {RSP_ZHLC, 700,700, -1, -1,-1, {0}},
343 {RSP_NMBR, 700,700, -1, -1,-1, {0}},
344 {RSP_ZCPN, 700,700, -1, -1,-1, {0}},
345 {RSP_ZCTP, 700,700, -1, -1,-1, {0}},
346 {EV_TIMEOUT, 700,700, -1, 720,720, {ACT_ICALL}},
347 {EV_BC_CLOSED,720,720, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}},
348
349 /*accept icall*/
350 {EV_ACCEPT, -1, -1, -1, -1,-1, {ACT_ACCEPT}}, //FIXME
351 {RSP_INIT, 720,720,SEQ_ACCEPT, 721, 5, {ACT_CMD+AT_PROTO}},
352 {RSP_OK, 721,721, -1, 722, 5, {ACT_CMD+AT_ISO}},
353 {RSP_OK, 722,722, -1, 723, 5, {0}, "+VLS=17\r"}, /* set "Endgeraetemodus" */
354 {RSP_OK, 723,723, -1, 724, 5, {0}},
355 {RSP_ZVLS, 724,724, 17, 750,50, {ACT_ACCEPTED}},
356 {RSP_ERROR, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}},
357 {EV_TIMEOUT, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}},
358 {RSP_ZSAU, 700,729,ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT}},
359 {RSP_ZSAU, 700,729,ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT}},
360 {RSP_ZSAU, 700,729,ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT}},
361
bceb0f12
TS		 362 {EV_BC_OPEN, 750,750, -1, 751,-1},
363 {EV_TIMEOUT, 750,751, -1, 0, 0, {ACT_CONNTIMEOUT}},
14fa73a7 364
73a88814
TS		 365 /* B channel closed (general case) */
366 {EV_BC_CLOSED, -1, -1, -1, -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME
367
14fa73a7
HL		 368 /* misc. */
369 {EV_PROTO_L2, -1, -1, -1, -1,-1, {ACT_PROTO_L2}}, //FIXME
370
371 {RSP_ZCON, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
372 {RSP_ZCCR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
373 {RSP_ZAOC, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
374 {RSP_ZCSTR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
375
376 {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}},
377 {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}},
378 {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}},
379 {RSP_LAST}
380};
381
382
35dc8457 383static const struct resp_type_t resp_type[] =
14fa73a7 384{
917f5085
TS		 385 /*{"", RSP_EMPTY, RT_NOTHING},*/
386 {"OK", RSP_OK, RT_NOTHING},
387 {"ERROR", RSP_ERROR, RT_NOTHING},
388 {"ZSAU", RSP_ZSAU, RT_ZSAU},
389 {"ZCAU", RSP_ZCAU, RT_ZCAU},
390 {"RING", RSP_RING, RT_RING},
391 {"ZGCI", RSP_ZGCI, RT_NUMBER},
392 {"ZVLS", RSP_ZVLS, RT_NUMBER},
393 {"ZCTP", RSP_ZCTP, RT_NUMBER},
394 {"ZDLE", RSP_ZDLE, RT_NUMBER},
395 {"ZCFGT", RSP_ZCFGT, RT_NUMBER},
396 {"ZCCR", RSP_ZCCR, RT_NUMBER},
397 {"ZMWI", RSP_ZMWI, RT_NUMBER},
398 {"ZHLC", RSP_ZHLC, RT_STRING},
399 {"ZBC", RSP_ZBC, RT_STRING},
400 {"NMBR", RSP_NMBR, RT_STRING},
401 {"ZCPN", RSP_ZCPN, RT_STRING},
402 {"ZCON", RSP_ZCON, RT_STRING},
403 {"ZAOC", RSP_ZAOC, RT_STRING},
404 {"ZCSTR", RSP_ZCSTR, RT_STRING},
405 {"ZCFG", RSP_ZCFG, RT_HEX},
406 {"ZLOG", RSP_ZLOG, RT_NOTHING},
407 {"ZABINFO", RSP_ZABINFO, RT_NOTHING},
408 {"ZSMLSTCHG", RSP_ZSMLSTCHG, RT_NOTHING},
14fa73a7
HL		 409 {NULL,0,0}
410};
411
412/*
413 * Get integer from char-pointer
414 */
415static int isdn_getnum(char *p)
416{
417 int v = -1;
418
784d5858 419 gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
14fa73a7
HL		 420
421 while (*p >= '0' && *p <= '9')
422 v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p++) - '0');
423 if (*p)
424 v = -1; /* invalid Character */
425 return v;
426}
427
428/*
429 * Get integer from char-pointer
430 */
431static int isdn_gethex(char *p)
432{
433 int v = 0;
434 int c;
435
784d5858 436 gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
14fa73a7
HL		 437
438 if (!*p)
439 return -1;
440
441 do {
442 if (v > (INT_MAX - 15) / 16)
443 return -1;
444 c = *p;
445 if (c >= '0' && c <= '9')
446 c -= '0';
447 else if (c >= 'a' && c <= 'f')
448 c -= 'a' - 10;
449 else if (c >= 'A' && c <= 'F')
450 c -= 'A' - 10;
451 else
452 return -1;
453 v = v * 16 + c;
454 } while (*++p);
455
456 return v;
457}
458
14fa73a7
HL		 459/* retrieve CID from parsed response
460 * returns 0 if no CID, -1 if invalid CID, or CID value 1..65535
461 */
462static int cid_of_response(char *s)
463{
464 int cid;
465
466 if (s[-1] != ';')
467 return 0; /* no CID separator */
468 cid = isdn_getnum(s);
469 if (cid < 0)
470 return 0; /* CID not numeric */
471 if (cid < 1 || cid > 65535)
472 return -1; /* CID out of range */
473 return cid;
474 //FIXME is ;<digit>+ at end of non-CID response really impossible?
475}
476
477/* This function will be called via task queue from the callback handler.
478 * We received a modem response and have to handle it..
479 */
480void gigaset_handle_modem_response(struct cardstate *cs)
481{
482 unsigned char *argv[MAX_REC_PARAMS + 1];
483 int params;
484 int i, j;
35dc8457 485 const struct resp_type_t *rt;
14fa73a7
HL		 486 int curarg;
487 unsigned long flags;
488 unsigned next, tail, head;
489 struct event_t *event;
490 int resp_code;
491 int param_type;
492 int abort;
493 size_t len;
494 int cid;
495 int rawstring;
496
14fa73a7
HL		 497 len = cs->cbytes;
498 if (!len) {
499 /* ignore additional LFs/CRs (M10x config mode or cx100) */
784d5858 500 gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]);
14fa73a7
HL		 501 return;
502 }
503 cs->respdata[len] = 0;
784d5858 504 gig_dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata);
14fa73a7
HL		 505 argv[0] = cs->respdata;
506 params = 1;
507 if (cs->at_state.getstring) {
508 /* getstring only allowed without cid at the moment */
509 cs->at_state.getstring = 0;
510 rawstring = 1;
511 cid = 0;
512 } else {
513 /* parse line */
514 for (i = 0; i < len; i++)
515 switch (cs->respdata[i]) {
516 case ';':
517 case ',':
518 case '=':
519 if (params > MAX_REC_PARAMS) {
784d5858
TS		 520 dev_warn(cs->dev,
521 "too many parameters in response\n");
14fa73a7
HL		 522 /* need last parameter (might be CID) */
523 params--;
524 }
525 argv[params++] = cs->respdata + i + 1;
526 }
527
528 rawstring = 0;
529 cid = params > 1 ? cid_of_response(argv[params-1]) : 0;
530 if (cid < 0) {
531 gigaset_add_event(cs, &cs->at_state, RSP_INVAL,
784d5858 532 NULL, 0, NULL);
14fa73a7
HL		 533 return;
534 }
535
536 for (j = 1; j < params; ++j)
537 argv[j][-1] = 0;
538
784d5858 539 gig_dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]);
14fa73a7
HL		 540 if (cid) {
541 --params;
784d5858 542 gig_dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]);
14fa73a7 543 }
784d5858 544 gig_dbg(DEBUG_TRANSCMD, "available params: %d", params - 1);
14fa73a7 545 for (j = 1; j < params; j++)
784d5858 546 gig_dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]);
14fa73a7
HL		 547 }
548
549 spin_lock_irqsave(&cs->ev_lock, flags);
69049cc8
TS		 550 head = cs->ev_head;
551 tail = cs->ev_tail;
14fa73a7
HL		 552
553 abort = 1;
554 curarg = 0;
555 while (curarg < params) {
556 next = (tail + 1) % MAX_EVENTS;
557 if (unlikely(next == head)) {
784d5858 558 dev_err(cs->dev, "event queue full\n");
14fa73a7
HL		 559 break;
560 }
561
562 event = cs->events + tail;
563 event->at_state = NULL;
564 event->cid = cid;
565 event->ptr = NULL;
566 event->arg = NULL;
567 tail = next;
568
569 if (rawstring) {
570 resp_code = RSP_STRING;
571 param_type = RT_STRING;
572 } else {
573 for (rt = resp_type; rt->response; ++rt)
574 if (!strcmp(argv[curarg], rt->response))
575 break;
576
577 if (!rt->response) {
578 event->type = RSP_UNKNOWN;
784d5858
TS		 579 dev_warn(cs->dev,
580 "unknown modem response: %s\n",
581 argv[curarg]);
14fa73a7
HL		 582 break;
583 }
584
585 resp_code = rt->resp_code;
586 param_type = rt->type;
587 ++curarg;
588 }
589
590 event->type = resp_code;
591
592 switch (param_type) {
593 case RT_NOTHING:
594 break;
595 case RT_RING:
596 if (!cid) {
784d5858
TS		 597 dev_err(cs->dev,
598 "received RING without CID!\n");
14fa73a7
HL		 599 event->type = RSP_INVAL;
600 abort = 1;
601 } else {
602 event->cid = 0;
603 event->parameter = cid;
604 abort = 0;
605 }
606 break;
607 case RT_ZSAU:
608 if (curarg >= params) {
609 event->parameter = ZSAU_NONE;
610 break;
611 }
612 if (!strcmp(argv[curarg], "OUTGOING_CALL_PROCEEDING"))
613 event->parameter = ZSAU_OUTGOING_CALL_PROCEEDING;
614 else if (!strcmp(argv[curarg], "CALL_DELIVERED"))
615 event->parameter = ZSAU_CALL_DELIVERED;
616 else if (!strcmp(argv[curarg], "ACTIVE"))
617 event->parameter = ZSAU_ACTIVE;
618 else if (!strcmp(argv[curarg], "DISCONNECT_IND"))
619 event->parameter = ZSAU_DISCONNECT_IND;
620 else if (!strcmp(argv[curarg], "NULL"))
621 event->parameter = ZSAU_NULL;
622 else if (!strcmp(argv[curarg], "DISCONNECT_REQ"))
623 event->parameter = ZSAU_DISCONNECT_REQ;
624 else {
625 event->parameter = ZSAU_UNKNOWN;
784d5858
TS		 626 dev_warn(cs->dev,
627 "%s: unknown parameter %s after ZSAU\n",
628 __func__, argv[curarg]);
14fa73a7
HL		 629 }
630 ++curarg;
631 break;
632 case RT_STRING:
633 if (curarg < params) {
784d5858
TS		 634 event->ptr = kstrdup(argv[curarg], GFP_ATOMIC);
635 if (!event->ptr)
636 dev_err(cs->dev, "out of memory\n");
14fa73a7
HL		 637 ++curarg;
638 }
236b87c2
TS		 639 gig_dbg(DEBUG_CMD, "string==%s",
640 event->ptr ? (char *) event->ptr : "NULL");
14fa73a7
HL		 641 break;
642 case RT_ZCAU:
643 event->parameter = -1;
644 if (curarg + 1 < params) {
645 i = isdn_gethex(argv[curarg]);
646 j = isdn_gethex(argv[curarg + 1]);
647 if (i >= 0 && i < 256 && j >= 0 && j < 256)
648 event->parameter = (unsigned) i << 8
784d5858 649 | j;
14fa73a7
HL		 650 curarg += 2;
651 } else
652 curarg = params - 1;
653 break;
654 case RT_NUMBER:
655 case RT_HEX:
656 if (curarg < params) {
657 if (param_type == RT_HEX)
658 event->parameter =
659 isdn_gethex(argv[curarg]);
660 else
661 event->parameter =
662 isdn_getnum(argv[curarg]);
663 ++curarg;
664 } else
665 event->parameter = -1;
784d5858 666 gig_dbg(DEBUG_CMD, "parameter==%d", event->parameter);
14fa73a7
HL		 667 break;
668 }
669
670 if (resp_code == RSP_ZDLE)
671 cs->dle = event->parameter;
672
673 if (abort)
674 break;
675 }
676
69049cc8 677 cs->ev_tail = tail;
14fa73a7
HL		 678 spin_unlock_irqrestore(&cs->ev_lock, flags);
679
680 if (curarg != params)
784d5858
TS		 681 gig_dbg(DEBUG_ANY,
682 "invalid number of processed parameters: %d/%d",
683 curarg, params);
14fa73a7
HL		 684}
685EXPORT_SYMBOL_GPL(gigaset_handle_modem_response);
686
687/* disconnect
688 * process closing of connection associated with given AT state structure
689 */
690static void disconnect(struct at_state_t **at_state_p)
691{
692 unsigned long flags;
d48c7784
TS		 693 struct bc_state *bcs = (*at_state_p)->bcs;
694 struct cardstate *cs = (*at_state_p)->cs;
14fa73a7 695
69049cc8
TS		 696 spin_lock_irqsave(&cs->lock, flags);
697 ++(*at_state_p)->seq_index;
14fa73a7
HL		 698
699 /* revert to selected idle mode */
69049cc8 700 if (!cs->cidmode) {
14fa73a7 701 cs->at_state.pending_commands |= PC_UMMODE;
9d4bee2b 702 cs->commands_pending = 1;
784d5858 703 gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
14fa73a7 704 }
69049cc8 705 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7
HL		 706
707 if (bcs) {
708 /* B channel assigned: invoke hardware specific handler */
709 cs->ops->close_bchannel(bcs);
3305adff
TS		 710 /* notify LL */
711 if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
712 bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
713 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
714 }
14fa73a7
HL		 715 } else {
716 /* no B channel assigned: just deallocate */
717 spin_lock_irqsave(&cs->lock, flags);
718 list_del(&(*at_state_p)->list);
719 kfree(*at_state_p);
720 *at_state_p = NULL;
721 spin_unlock_irqrestore(&cs->lock, flags);
722 }
723}
724
725/* get_free_channel
726 * get a free AT state structure: either one of those associated with the
727 * B channels of the Gigaset device, or if none of those is available,
728 * a newly allocated one with bcs=NULL
729 * The structure should be freed by calling disconnect() after use.
730 */
731static inline struct at_state_t *get_free_channel(struct cardstate *cs,
784d5858 732 int cid)
14fa73a7
HL		 733/* cids: >0: siemens-cid
734 0: without cid
735 -1: no cid assigned yet
736*/
737{
738 unsigned long flags;
739 int i;
740 struct at_state_t *ret;
741
742 for (i = 0; i < cs->channels; ++i)
743 if (gigaset_get_channel(cs->bcs + i)) {
744 ret = &cs->bcs[i].at_state;
745 ret->cid = cid;
746 return ret;
747 }
748
749 spin_lock_irqsave(&cs->lock, flags);
750 ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC);
751 if (ret) {
752 gigaset_at_init(ret, NULL, cs, cid);
753 list_add(&ret->list, &cs->temp_at_states);
754 }
755 spin_unlock_irqrestore(&cs->lock, flags);
756 return ret;
757}
758
759static void init_failed(struct cardstate *cs, int mode)
760{
761 int i;
762 struct at_state_t *at_state;
763
764 cs->at_state.pending_commands &= ~PC_INIT;
9d4bee2b
TS		 765 cs->mode = mode;
766 cs->mstate = MS_UNINITIALIZED;
14fa73a7
HL		 767 gigaset_free_channels(cs);
768 for (i = 0; i < cs->channels; ++i) {
769 at_state = &cs->bcs[i].at_state;
770 if (at_state->pending_commands & PC_CID) {
771 at_state->pending_commands &= ~PC_CID;
772 at_state->pending_commands |= PC_NOCID;
9d4bee2b 773 cs->commands_pending = 1;
14fa73a7
HL		 774 }
775 }
776}
777
778static void schedule_init(struct cardstate *cs, int state)
779{
780 if (cs->at_state.pending_commands & PC_INIT) {
784d5858 781 gig_dbg(DEBUG_CMD, "not scheduling PC_INIT again");
14fa73a7
HL		 782 return;
783 }
9d4bee2b
TS		 784 cs->mstate = state;
785 cs->mode = M_UNKNOWN;
14fa73a7
HL		 786 gigaset_block_channels(cs);
787 cs->at_state.pending_commands |= PC_INIT;
9d4bee2b 788 cs->commands_pending = 1;
784d5858 789 gig_dbg(DEBUG_CMD, "Scheduling PC_INIT");
14fa73a7
HL		 790}
791
917f5085
TS		 792/* Add "AT" to a command, add the cid, dle encode it, send the result to the
793 hardware. */
14fa73a7 794static void send_command(struct cardstate *cs, const char *cmd, int cid,
784d5858 795 int dle, gfp_t kmallocflags)
14fa73a7
HL		 796{
797 size_t cmdlen, buflen;
798 char *cmdpos, *cmdbuf, *cmdtail;
799
800 cmdlen = strlen(cmd);
801 buflen = 11 + cmdlen;
784d5858
TS		 802 if (unlikely(buflen <= cmdlen)) {
803 dev_err(cs->dev, "integer overflow in buflen\n");
804 return;
805 }
14fa73a7 806
784d5858
TS		 807 cmdbuf = kmalloc(buflen, kmallocflags);
808 if (unlikely(!cmdbuf)) {
809 dev_err(cs->dev, "out of memory\n");
810 return;
811 }
14fa73a7 812
784d5858
TS		 813 cmdpos = cmdbuf + 9;
814 cmdtail = cmdpos + cmdlen;
815 memcpy(cmdpos, cmd, cmdlen);
14fa73a7 816
784d5858
TS		 817 if (cid > 0 && cid <= 65535) {
818 do {
819 *--cmdpos = '0' + cid % 10;
820 cid /= 10;
821 ++cmdlen;
822 } while (cid);
823 }
14fa73a7 824
784d5858
TS		 825 cmdlen += 2;
826 *--cmdpos = 'T';
827 *--cmdpos = 'A';
828
829 if (dle) {
830 cmdlen += 4;
831 *--cmdpos = '(';
832 *--cmdpos = 0x10;
833 *cmdtail++ = 0x10;
834 *cmdtail++ = ')';
835 }
836
837 cs->ops->write_cmd(cs, cmdpos, cmdlen, NULL);
838 kfree(cmdbuf);
14fa73a7
HL		 839}
840
841static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid)
842{
843 struct at_state_t *at_state;
844 int i;
845 unsigned long flags;
846
847 if (cid == 0)
848 return &cs->at_state;
849
850 for (i = 0; i < cs->channels; ++i)
851 if (cid == cs->bcs[i].at_state.cid)
852 return &cs->bcs[i].at_state;
853
854 spin_lock_irqsave(&cs->lock, flags);
855
856 list_for_each_entry(at_state, &cs->temp_at_states, list)
857 if (cid == at_state->cid) {
858 spin_unlock_irqrestore(&cs->lock, flags);
859 return at_state;
860 }
861
862 spin_unlock_irqrestore(&cs->lock, flags);
863
864 return NULL;
865}
866
867static void bchannel_down(struct bc_state *bcs)
868{
14fa73a7
HL		 869 if (bcs->chstate & CHS_B_UP) {
870 bcs->chstate &= ~CHS_B_UP;
871 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP);
872 }
873
874 if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
875 bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
876 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
877 }
878
879 gigaset_free_channel(bcs);
880
881 gigaset_bcs_reinit(bcs);
882}
883
884static void bchannel_up(struct bc_state *bcs)
885{
14fa73a7 886 if (bcs->chstate & CHS_B_UP) {
784d5858
TS		 887 dev_notice(bcs->cs->dev, "%s: B channel already up\n",
888 __func__);
14fa73a7
HL		 889 return;
890 }
891
892 bcs->chstate |= CHS_B_UP;
893 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN);
894}
895
69049cc8 896static void start_dial(struct at_state_t *at_state, void *data, unsigned seq_index)
14fa73a7
HL		 897{
898 struct bc_state *bcs = at_state->bcs;
899 struct cardstate *cs = at_state->cs;
900 int retval;
69049cc8 901 unsigned long flags;
14fa73a7
HL		 902
903 bcs->chstate |= CHS_NOTIFY_LL;
14fa73a7 904
69049cc8
TS		 905 spin_lock_irqsave(&cs->lock, flags);
906 if (at_state->seq_index != seq_index) {
907 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7 908 goto error;
69049cc8
TS		 909 }
910 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7
HL		 911
912 retval = gigaset_isdn_setup_dial(at_state, data);
913 if (retval != 0)
914 goto error;
915
916
917 at_state->pending_commands |= PC_CID;
784d5858 918 gig_dbg(DEBUG_CMD, "Scheduling PC_CID");
9d4bee2b 919 cs->commands_pending = 1;
14fa73a7
HL		 920 return;
921
922error:
923 at_state->pending_commands |= PC_NOCID;
784d5858 924 gig_dbg(DEBUG_CMD, "Scheduling PC_NOCID");
9d4bee2b 925 cs->commands_pending = 1;
14fa73a7
HL		 926 return;
927}
928
929static void start_accept(struct at_state_t *at_state)
930{
931 struct cardstate *cs = at_state->cs;
932 int retval;
933
934 retval = gigaset_isdn_setup_accept(at_state);
935
936 if (retval == 0) {
937 at_state->pending_commands |= PC_ACCEPT;
784d5858 938 gig_dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
9d4bee2b 939 cs->commands_pending = 1;
14fa73a7 940 } else {
9d4bee2b 941 /* error reset */
14fa73a7 942 at_state->pending_commands |= PC_HUP;
784d5858 943 gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
9d4bee2b 944 cs->commands_pending = 1;
14fa73a7
HL		 945 }
946}
947
948static void do_start(struct cardstate *cs)
949{
950 gigaset_free_channels(cs);
951
9d4bee2b 952 if (cs->mstate != MS_LOCKED)
14fa73a7
HL		 953 schedule_init(cs, MS_INIT);
954
69049cc8 955 cs->isdn_up = 1;
14fa73a7 956 gigaset_i4l_cmd(cs, ISDN_STAT_RUN);
784d5858
TS		 957 // FIXME: not in locked mode
958 // FIXME 2: only after init sequence
14fa73a7
HL		 959
960 cs->waiting = 0;
961 wake_up(&cs->waitqueue);
962}
963
964static void finish_shutdown(struct cardstate *cs)
965{
9d4bee2b
TS		 966 if (cs->mstate != MS_LOCKED) {
967 cs->mstate = MS_UNINITIALIZED;
968 cs->mode = M_UNKNOWN;
14fa73a7
HL		 969 }
970
69049cc8
TS		 971 /* Tell the LL that the device is not available .. */
972 if (cs->isdn_up) {
973 cs->isdn_up = 0;
974 gigaset_i4l_cmd(cs, ISDN_STAT_STOP);
975 }
976
14fa73a7
HL		 977 /* The rest is done by cleanup_cs () in user mode. */
978
979 cs->cmd_result = -ENODEV;
980 cs->waiting = 0;
2869b23e 981 wake_up(&cs->waitqueue);
14fa73a7
HL		 982}
983
984static void do_shutdown(struct cardstate *cs)
985{
986 gigaset_block_channels(cs);
987
9d4bee2b
TS		 988 if (cs->mstate == MS_READY) {
989 cs->mstate = MS_SHUTDOWN;
14fa73a7 990 cs->at_state.pending_commands |= PC_SHUTDOWN;
9d4bee2b 991 cs->commands_pending = 1;
784d5858 992 gig_dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN");
14fa73a7
HL		 993 } else
994 finish_shutdown(cs);
995}
996
997static void do_stop(struct cardstate *cs)
998{
69049cc8
TS		 999 unsigned long flags;
1000
1001 spin_lock_irqsave(&cs->lock, flags);
1002 cs->connected = 0;
1003 spin_unlock_irqrestore(&cs->lock, flags);
1004
14fa73a7
HL		 1005 do_shutdown(cs);
1006}
1007
1008/* Entering cid mode or getting a cid failed:
1009 * try to initialize the device and try again.
1010 *
1011 * channel >= 0: getting cid for the channel failed
1012 * channel < 0: entering cid mode failed
1013 *
1014 * returns 0 on failure
1015 */
1016static int reinit_and_retry(struct cardstate *cs, int channel)
1017{
1018 int i;
1019
1020 if (--cs->retry_count <= 0)
1021 return 0;
1022
1023 for (i = 0; i < cs->channels; ++i)
1024 if (cs->bcs[i].at_state.cid > 0)
1025 return 0;
1026
1027 if (channel < 0)
784d5858
TS		 1028 dev_warn(cs->dev,
1029 "Could not enter cid mode. Reinit device and try again.\n");
14fa73a7 1030 else {
784d5858
TS		 1031 dev_warn(cs->dev,
1032 "Could not get a call id. Reinit device and try again.\n");
14fa73a7
HL		 1033 cs->bcs[channel].at_state.pending_commands |= PC_CID;
1034 }
1035 schedule_init(cs, MS_INIT);
1036 return 1;
1037}
1038
1039static int at_state_invalid(struct cardstate *cs,
784d5858 1040 struct at_state_t *test_ptr)
14fa73a7
HL		 1041{
1042 unsigned long flags;
1043 unsigned channel;
1044 struct at_state_t *at_state;
1045 int retval = 0;
1046
1047 spin_lock_irqsave(&cs->lock, flags);
1048
1049 if (test_ptr == &cs->at_state)
1050 goto exit;
1051
1052 list_for_each_entry(at_state, &cs->temp_at_states, list)
1053 if (at_state == test_ptr)
1054 goto exit;
1055
1056 for (channel = 0; channel < cs->channels; ++channel)
1057 if (&cs->bcs[channel].at_state == test_ptr)
1058 goto exit;
1059
1060 retval = 1;
1061exit:
1062 spin_unlock_irqrestore(&cs->lock, flags);
1063 return retval;
1064}
1065
1066static void handle_icall(struct cardstate *cs, struct bc_state *bcs,
1067 struct at_state_t **p_at_state)
1068{
1069 int retval;
1070 struct at_state_t *at_state = *p_at_state;
1071
1072 retval = gigaset_isdn_icall(at_state);
1073 switch (retval) {
1074 case ICALL_ACCEPT:
1075 break;
1076 default:
784d5858 1077 dev_err(cs->dev, "internal error: disposition=%d\n", retval);
14fa73a7
HL		 1078 /* --v-- fall through --v-- */
1079 case ICALL_IGNORE:
1080 case ICALL_REJECT:
1081 /* hang up actively
1082 * Device doc says that would reject the call.
1083 * In fact it doesn't.
1084 */
1085 at_state->pending_commands |= PC_HUP;
9d4bee2b 1086 cs->commands_pending = 1;
14fa73a7
HL		 1087 break;
1088 }
1089}
1090
1091static int do_lock(struct cardstate *cs)
1092{
1093 int mode;
1094 int i;
1095
9d4bee2b 1096 switch (cs->mstate) {
14fa73a7
HL		 1097 case MS_UNINITIALIZED:
1098 case MS_READY:
1099 if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) ||
1100 cs->at_state.pending_commands)
1101 return -EBUSY;
1102
1103 for (i = 0; i < cs->channels; ++i)
1104 if (cs->bcs[i].at_state.pending_commands)
1105 return -EBUSY;
1106
1107 if (!gigaset_get_channels(cs))
1108 return -EBUSY;
1109
1110 break;
1111 case MS_LOCKED:
1112 //retval = -EACCES;
1113 break;
1114 default:
1115 return -EBUSY;
1116 }
1117
9d4bee2b
TS		 1118 mode = cs->mode;
1119 cs->mstate = MS_LOCKED;
1120 cs->mode = M_UNKNOWN;
14fa73a7
HL		 1121
1122 return mode;
1123}
1124
1125static int do_unlock(struct cardstate *cs)
1126{
9d4bee2b 1127 if (cs->mstate != MS_LOCKED)
14fa73a7
HL		 1128 return -EINVAL;
1129
9d4bee2b
TS		 1130 cs->mstate = MS_UNINITIALIZED;
1131 cs->mode = M_UNKNOWN;
14fa73a7 1132 gigaset_free_channels(cs);
69049cc8 1133 if (cs->connected)
14fa73a7
HL		 1134 schedule_init(cs, MS_INIT);
1135
1136 return 0;
1137}
1138
1139static void do_action(int action, struct cardstate *cs,
1140 struct bc_state *bcs,
1141 struct at_state_t **p_at_state, char **pp_command,
1142 int *p_genresp, int *p_resp_code,
1143 struct event_t *ev)
1144{
1145 struct at_state_t *at_state = *p_at_state;
1146 struct at_state_t *at_state2;
1147 unsigned long flags;
1148
1149 int channel;
1150
1151 unsigned char *s, *e;
1152 int i;
1153 unsigned long val;
1154
1155 switch (action) {
1156 case ACT_NOTHING:
1157 break;
1158 case ACT_TIMEOUT:
1159 at_state->waiting = 1;
1160 break;
1161 case ACT_INIT:
14fa73a7
HL		 1162 cs->at_state.pending_commands &= ~PC_INIT;
1163 cs->cur_at_seq = SEQ_NONE;
9d4bee2b 1164 cs->mode = M_UNIMODEM;
69049cc8
TS		 1165 spin_lock_irqsave(&cs->lock, flags);
1166 if (!cs->cidmode) {
1167 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7 1168 gigaset_free_channels(cs);
9d4bee2b 1169 cs->mstate = MS_READY;
14fa73a7
HL		 1170 break;
1171 }
69049cc8 1172 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7 1173 cs->at_state.pending_commands |= PC_CIDMODE;
9d4bee2b 1174 cs->commands_pending = 1;
784d5858 1175 gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
14fa73a7
HL		 1176 break;
1177 case ACT_FAILINIT:
784d5858 1178 dev_warn(cs->dev, "Could not initialize the device.\n");
14fa73a7
HL		 1179 cs->dle = 0;
1180 init_failed(cs, M_UNKNOWN);
1181 cs->cur_at_seq = SEQ_NONE;
1182 break;
1183 case ACT_CONFIGMODE:
1184 init_failed(cs, M_CONFIG);
1185 cs->cur_at_seq = SEQ_NONE;
1186 break;
1187 case ACT_SETDLE1:
1188 cs->dle = 1;
1189 /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */
1190 cs->inbuf[0].inputstate &=
1191 ~(INS_command | INS_DLE_command);
1192 break;
1193 case ACT_SETDLE0:
1194 cs->dle = 0;
1195 cs->inbuf[0].inputstate =
1196 (cs->inbuf[0].inputstate & ~INS_DLE_command)
1197 | INS_command;
1198 break;
1199 case ACT_CMODESET:
9d4bee2b 1200 if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) {
14fa73a7 1201 gigaset_free_channels(cs);
9d4bee2b 1202 cs->mstate = MS_READY;
14fa73a7 1203 }
9d4bee2b 1204 cs->mode = M_CID;
14fa73a7
HL		 1205 cs->cur_at_seq = SEQ_NONE;
1206 break;
1207 case ACT_UMODESET:
9d4bee2b 1208 cs->mode = M_UNIMODEM;
14fa73a7
HL		 1209 cs->cur_at_seq = SEQ_NONE;
1210 break;
1211 case ACT_FAILCMODE:
1212 cs->cur_at_seq = SEQ_NONE;
9d4bee2b 1213 if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) {
14fa73a7
HL		 1214 init_failed(cs, M_UNKNOWN);
1215 break;
1216 }
1217 if (!reinit_and_retry(cs, -1))
1218 schedule_init(cs, MS_RECOVER);
1219 break;
1220 case ACT_FAILUMODE:
1221 cs->cur_at_seq = SEQ_NONE;
1222 schedule_init(cs, MS_RECOVER);
1223 break;
1224 case ACT_HUPMODEM:
1225 /* send "+++" (hangup in unimodem mode) */
698e3ed9
TS		 1226 if (cs->connected)
1227 cs->ops->write_cmd(cs, "+++", 3, NULL);
14fa73a7
HL		 1228 break;
1229 case ACT_RING:
1230 /* get fresh AT state structure for new CID */
1231 at_state2 = get_free_channel(cs, ev->parameter);
1232 if (!at_state2) {
784d5858
TS		 1233 dev_warn(cs->dev,
1234 "RING ignored: could not allocate channel structure\n");
14fa73a7
HL		 1235 break;
1236 }
1237
1238 /* initialize AT state structure
1239 * note that bcs may be NULL if no B channel is free
1240 */
1241 at_state2->ConState = 700;
1242 kfree(at_state2->str_var[STR_NMBR]);
1243 at_state2->str_var[STR_NMBR] = NULL;
1244 kfree(at_state2->str_var[STR_ZCPN]);
1245 at_state2->str_var[STR_ZCPN] = NULL;
1246 kfree(at_state2->str_var[STR_ZBC]);
1247 at_state2->str_var[STR_ZBC] = NULL;
1248 kfree(at_state2->str_var[STR_ZHLC]);
1249 at_state2->str_var[STR_ZHLC] = NULL;
1250 at_state2->int_var[VAR_ZCTP] = -1;
1251
1252 spin_lock_irqsave(&cs->lock, flags);
1253 at_state2->timer_expires = RING_TIMEOUT;
1254 at_state2->timer_active = 1;
1255 spin_unlock_irqrestore(&cs->lock, flags);
1256 break;
1257 case ACT_ICALL:
1258 handle_icall(cs, bcs, p_at_state);
14fa73a7
HL		 1259 break;
1260 case ACT_FAILSDOWN:
784d5858 1261 dev_warn(cs->dev, "Could not shut down the device.\n");
14fa73a7
HL		 1262 /* fall through */
1263 case ACT_FAKESDOWN:
1264 case ACT_SDOWN:
1265 cs->cur_at_seq = SEQ_NONE;
1266 finish_shutdown(cs);
1267 break;
1268 case ACT_CONNECT:
1269 if (cs->onechannel) {
1270 at_state->pending_commands |= PC_DLE1;
9d4bee2b 1271 cs->commands_pending = 1;
14fa73a7
HL		 1272 break;
1273 }
1274 bcs->chstate |= CHS_D_UP;
1275 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
1276 cs->ops->init_bchannel(bcs);
1277 break;
1278 case ACT_DLE1:
1279 cs->cur_at_seq = SEQ_NONE;
1280 bcs = cs->bcs + cs->curchannel;
1281
1282 bcs->chstate |= CHS_D_UP;
1283 gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
1284 cs->ops->init_bchannel(bcs);
1285 break;
1286 case ACT_FAKEHUP:
1287 at_state->int_var[VAR_ZSAU] = ZSAU_NULL;
1288 /* fall through */
1289 case ACT_DISCONNECT:
1290 cs->cur_at_seq = SEQ_NONE;
1291 at_state->cid = -1;
1292 if (bcs && cs->onechannel && cs->dle) {
1293 /* Check for other open channels not needed:
1294 * DLE only used for M10x with one B channel.
1295 */
1296 at_state->pending_commands |= PC_DLE0;
9d4bee2b 1297 cs->commands_pending = 1;
698e3ed9 1298 } else
14fa73a7 1299 disconnect(p_at_state);
14fa73a7
HL		 1300 break;
1301 case ACT_FAKEDLE0:
1302 at_state->int_var[VAR_ZDLE] = 0;
1303 cs->dle = 0;
1304 /* fall through */
1305 case ACT_DLE0:
1306 cs->cur_at_seq = SEQ_NONE;
1307 at_state2 = &cs->bcs[cs->curchannel].at_state;
1308 disconnect(&at_state2);
1309 break;
1310 case ACT_ABORTHUP:
1311 cs->cur_at_seq = SEQ_NONE;
784d5858 1312 dev_warn(cs->dev, "Could not hang up.\n");
14fa73a7
HL		 1313 at_state->cid = -1;
1314 if (bcs && cs->onechannel)
1315 at_state->pending_commands |= PC_DLE0;
698e3ed9 1316 else
14fa73a7 1317 disconnect(p_at_state);
14fa73a7
HL		 1318 schedule_init(cs, MS_RECOVER);
1319 break;
1320 case ACT_FAILDLE0:
1321 cs->cur_at_seq = SEQ_NONE;
784d5858 1322 dev_warn(cs->dev, "Could not leave DLE mode.\n");
14fa73a7
HL		 1323 at_state2 = &cs->bcs[cs->curchannel].at_state;
1324 disconnect(&at_state2);
1325 schedule_init(cs, MS_RECOVER);
1326 break;
1327 case ACT_FAILDLE1:
1328 cs->cur_at_seq = SEQ_NONE;
784d5858
TS		 1329 dev_warn(cs->dev,
1330 "Could not enter DLE mode. Trying to hang up.\n");
14fa73a7
HL		 1331 channel = cs->curchannel;
1332 cs->bcs[channel].at_state.pending_commands |= PC_HUP;
9d4bee2b 1333 cs->commands_pending = 1;
14fa73a7
HL		 1334 break;
1335
1336 case ACT_CID: /* got cid; start dialing */
1337 cs->cur_at_seq = SEQ_NONE;
1338 channel = cs->curchannel;
1339 if (ev->parameter > 0 && ev->parameter <= 65535) {
1340 cs->bcs[channel].at_state.cid = ev->parameter;
1341 cs->bcs[channel].at_state.pending_commands |=
1342 PC_DIAL;
9d4bee2b 1343 cs->commands_pending = 1;
14fa73a7
HL		 1344 break;
1345 }
1346 /* fall through */
1347 case ACT_FAILCID:
1348 cs->cur_at_seq = SEQ_NONE;
1349 channel = cs->curchannel;
1350 if (!reinit_and_retry(cs, channel)) {
784d5858
TS		 1351 dev_warn(cs->dev,
1352 "Could not get a call ID. Cannot dial.\n");
14fa73a7
HL		 1353 at_state2 = &cs->bcs[channel].at_state;
1354 disconnect(&at_state2);
1355 }
1356 break;
1357 case ACT_ABORTCID:
1358 cs->cur_at_seq = SEQ_NONE;
1359 at_state2 = &cs->bcs[cs->curchannel].at_state;
1360 disconnect(&at_state2);
1361 break;
1362
1363 case ACT_DIALING:
1364 case ACT_ACCEPTED:
1365 cs->cur_at_seq = SEQ_NONE;
1366 break;
1367
1368 case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL processing */
1369 disconnect(p_at_state);
14fa73a7
HL		 1370 break;
1371
1372 case ACT_ABORTDIAL: /* error/timeout during dial preparation */
1373 cs->cur_at_seq = SEQ_NONE;
1374 at_state->pending_commands |= PC_HUP;
9d4bee2b 1375 cs->commands_pending = 1;
14fa73a7
HL		 1376 break;
1377
1378 case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */
1379 case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */
1380 case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */
1381 at_state->pending_commands |= PC_HUP;
9d4bee2b 1382 cs->commands_pending = 1;
14fa73a7 1383 break;
917f5085 1384 case ACT_GETSTRING: /* warning: RING, ZDLE, ...
784d5858 1385 are not handled properly anymore */
14fa73a7
HL		 1386 at_state->getstring = 1;
1387 break;
1388 case ACT_SETVER:
1389 if (!ev->ptr) {
1390 *p_genresp = 1;
1391 *p_resp_code = RSP_ERROR;
1392 break;
1393 }
1394 s = ev->ptr;
1395
1396 if (!strcmp(s, "OK")) {
1397 *p_genresp = 1;
1398 *p_resp_code = RSP_ERROR;
1399 break;
1400 }
1401
1402 for (i = 0; i < 4; ++i) {
1403 val = simple_strtoul(s, (char **) &e, 10);
1404 if (val > INT_MAX || e == s)
1405 break;
1406 if (i == 3) {
1407 if (*e)
1408 break;
1409 } else if (*e != '.')
1410 break;
1411 else
1412 s = e + 1;
1413 cs->fwver[i] = val;
1414 }
1415 if (i != 4) {
1416 *p_genresp = 1;
1417 *p_resp_code = RSP_ERROR;
1418 break;
1419 }
1420 /*at_state->getstring = 1;*/
1421 cs->gotfwver = 0;
1422 break;
1423 case ACT_GOTVER:
1424 if (cs->gotfwver == 0) {
1425 cs->gotfwver = 1;
784d5858
TS		 1426 gig_dbg(DEBUG_ANY,
1427 "firmware version %02d.%03d.%02d.%02d",
1428 cs->fwver[0], cs->fwver[1],
1429 cs->fwver[2], cs->fwver[3]);
14fa73a7
HL		 1430 break;
1431 }
1432 /* fall through */
1433 case ACT_FAILVER:
1434 cs->gotfwver = -1;
784d5858 1435 dev_err(cs->dev, "could not read firmware version.\n");
14fa73a7
HL		 1436 break;
1437#ifdef CONFIG_GIGASET_DEBUG
1438 case ACT_ERROR:
1439 *p_genresp = 1;
1440 *p_resp_code = RSP_ERROR;
1441 break;
1442 case ACT_TEST:
1443 {
1444 static int count = 3; //2; //1;
1445 *p_genresp = 1;
1446 *p_resp_code = count ? RSP_ERROR : RSP_OK;
1447 if (count > 0)
1448 --count;
1449 }
1450 break;
1451#endif
1452 case ACT_DEBUG:
784d5858 1453 gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
14fa73a7
HL		 1454 __func__, ev->type, at_state->ConState);
1455 break;
1456 case ACT_WARN:
784d5858
TS		 1457 dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n",
1458 __func__, ev->type, at_state->ConState);
14fa73a7
HL		 1459 break;
1460 case ACT_ZCAU:
784d5858
TS		 1461 dev_warn(cs->dev, "cause code %04x in connection state %d.\n",
1462 ev->parameter, at_state->ConState);
14fa73a7
HL		 1463 break;
1464
1465 /* events from the LL */
1466 case ACT_DIAL:
1467 start_dial(at_state, ev->ptr, ev->parameter);
1468 break;
1469 case ACT_ACCEPT:
1470 start_accept(at_state);
1471 break;
1472 case ACT_PROTO_L2:
784d5858
TS		 1473 gig_dbg(DEBUG_CMD, "set protocol to %u",
1474 (unsigned) ev->parameter);
14fa73a7
HL		 1475 at_state->bcs->proto2 = ev->parameter;
1476 break;
1477 case ACT_HUP:
1478 at_state->pending_commands |= PC_HUP;
9d4bee2b 1479 cs->commands_pending = 1;
784d5858 1480 gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
14fa73a7
HL		 1481 break;
1482
1483 /* hotplug events */
1484 case ACT_STOP:
1485 do_stop(cs);
1486 break;
1487 case ACT_START:
1488 do_start(cs);
1489 break;
1490
1491 /* events from the interface */ // FIXME without ACT_xxxx?
1492 case ACT_IF_LOCK:
1493 cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs);
1494 cs->waiting = 0;
1495 wake_up(&cs->waitqueue);
1496 break;
1497 case ACT_IF_VER:
1498 if (ev->parameter != 0)
1499 cs->cmd_result = -EINVAL;
1500 else if (cs->gotfwver != 1) {
1501 cs->cmd_result = -ENOENT;
1502 } else {
1503 memcpy(ev->arg, cs->fwver, sizeof cs->fwver);
1504 cs->cmd_result = 0;
1505 }
1506 cs->waiting = 0;
1507 wake_up(&cs->waitqueue);
1508 break;
1509
1510 /* events from the proc file system */ // FIXME without ACT_xxxx?
1511 case ACT_PROC_CIDMODE:
69049cc8
TS		 1512 spin_lock_irqsave(&cs->lock, flags);
1513 if (ev->parameter != cs->cidmode) {
1514 cs->cidmode = ev->parameter;
14fa73a7
HL		 1515 if (ev->parameter) {
1516 cs->at_state.pending_commands |= PC_CIDMODE;
784d5858 1517 gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
14fa73a7
HL		 1518 } else {
1519 cs->at_state.pending_commands |= PC_UMMODE;
784d5858 1520 gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
14fa73a7 1521 }
9d4bee2b 1522 cs->commands_pending = 1;
14fa73a7 1523 }
69049cc8 1524 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7
HL		 1525 cs->waiting = 0;
1526 wake_up(&cs->waitqueue);
1527 break;
1528
1529 /* events from the hardware drivers */
1530 case ACT_NOTIFY_BC_DOWN:
1531 bchannel_down(bcs);
1532 break;
1533 case ACT_NOTIFY_BC_UP:
1534 bchannel_up(bcs);
1535 break;
1536 case ACT_SHUTDOWN:
1537 do_shutdown(cs);
1538 break;
1539
1540
1541 default:
1542 if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) {
1543 *pp_command = at_state->bcs->commands[action - ACT_CMD];
1544 if (!*pp_command) {
1545 *p_genresp = 1;
1546 *p_resp_code = RSP_NULL;
1547 }
1548 } else
784d5858 1549 dev_err(cs->dev, "%s: action==%d!\n", __func__, action);
14fa73a7
HL		 1550 }
1551}
1552
1553/* State machine to do the calling and hangup procedure */
1554static void process_event(struct cardstate *cs, struct event_t *ev)
1555{
1556 struct bc_state *bcs;
1557 char *p_command = NULL;
1558 struct reply_t *rep;
1559 int rcode;
1560 int genresp = 0;
1561 int resp_code = RSP_ERROR;
1562 int sendcid;
1563 struct at_state_t *at_state;
1564 int index;
1565 int curact;
1566 unsigned long flags;
1567
14fa73a7
HL		 1568 if (ev->cid >= 0) {
1569 at_state = at_state_from_cid(cs, ev->cid);
1570 if (!at_state) {
1571 gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID,
784d5858 1572 NULL, 0, NULL);
14fa73a7
HL		 1573 return;
1574 }
1575 } else {
1576 at_state = ev->at_state;
1577 if (at_state_invalid(cs, at_state)) {
784d5858
TS		 1578 gig_dbg(DEBUG_ANY, "event for invalid at_state %p",
1579 at_state);
14fa73a7
HL		 1580 return;
1581 }
1582 }
1583
784d5858
TS		 1584 gig_dbg(DEBUG_CMD, "connection state %d, event %d",
1585 at_state->ConState, ev->type);
14fa73a7
HL		 1586
1587 bcs = at_state->bcs;
1588 sendcid = at_state->cid;
1589
1590 /* Setting the pointer to the dial array */
1591 rep = at_state->replystruct;
14fa73a7 1592
69049cc8 1593 spin_lock_irqsave(&cs->lock, flags);
14fa73a7 1594 if (ev->type == EV_TIMEOUT) {
69049cc8 1595 if (ev->parameter != at_state->timer_index
14fa73a7
HL		 1596 || !at_state->timer_active) {
1597 ev->type = RSP_NONE; /* old timeout */
784d5858 1598 gig_dbg(DEBUG_ANY, "old timeout");
14fa73a7 1599 } else if (!at_state->waiting)
784d5858 1600 gig_dbg(DEBUG_ANY, "timeout occurred");
14fa73a7 1601 else
784d5858 1602 gig_dbg(DEBUG_ANY, "stopped waiting");
14fa73a7 1603 }
69049cc8 1604 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7 1605
917f5085
TS		 1606 /* if the response belongs to a variable in at_state->int_var[VAR_XXXX]
1607 or at_state->str_var[STR_XXXX], set it */
14fa73a7
HL		 1608 if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) {
1609 index = ev->type - RSP_VAR;
1610 at_state->int_var[index] = ev->parameter;
1611 } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) {
1612 index = ev->type - RSP_STR;
1613 kfree(at_state->str_var[index]);
1614 at_state->str_var[index] = ev->ptr;
917f5085
TS		 1615 ev->ptr = NULL; /* prevent process_events() from
1616 deallocating ptr */
14fa73a7
HL		 1617 }
1618
1619 if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING)
1620 at_state->getstring = 0;
1621
917f5085
TS		 1622 /* Search row in dial array which matches modem response and current
1623 constate */
14fa73a7
HL		 1624 for (;; rep++) {
1625 rcode = rep->resp_code;
14fa73a7
HL		 1626 if (rcode == RSP_LAST) {
1627 /* found nothing...*/
784d5858
TS		 1628 dev_warn(cs->dev, "%s: rcode=RSP_LAST: "
1629 "resp_code %d in ConState %d!\n",
1630 __func__, ev->type, at_state->ConState);
14fa73a7
HL		 1631 return;
1632 }
1633 if ((rcode == RSP_ANY || rcode == ev->type)
1634 && ((int) at_state->ConState >= rep->min_ConState)
1635 && (rep->max_ConState < 0
1636 || (int) at_state->ConState <= rep->max_ConState)
1637 && (rep->parameter < 0 || rep->parameter == ev->parameter))
1638 break;
1639 }
1640
1641 p_command = rep->command;
1642
1643 at_state->waiting = 0;
1644 for (curact = 0; curact < MAXACT; ++curact) {
1645 /* The row tells us what we should do ..
1646 */
1647 do_action(rep->action[curact], cs, bcs, &at_state, &p_command, &genresp, &resp_code, ev);
1648 if (!at_state)
1649 break; /* may be freed after disconnect */
1650 }
1651
1652 if (at_state) {
1653 /* Jump to the next con-state regarding the array */
1654 if (rep->new_ConState >= 0)
1655 at_state->ConState = rep->new_ConState;
1656
1657 if (genresp) {
1658 spin_lock_irqsave(&cs->lock, flags);
1659 at_state->timer_expires = 0; //FIXME
1660 at_state->timer_active = 0; //FIXME
1661 spin_unlock_irqrestore(&cs->lock, flags);
1662 gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL);
1663 } else {
1664 /* Send command to modem if not NULL... */
1665 if (p_command/*rep->command*/) {
69049cc8 1666 if (cs->connected)
14fa73a7 1667 send_command(cs, p_command,
784d5858
TS		 1668 sendcid, cs->dle,
1669 GFP_ATOMIC);
14fa73a7
HL		 1670 else
1671 gigaset_add_event(cs, at_state,
784d5858
TS		 1672 RSP_NODEV,
1673 NULL, 0, NULL);
14fa73a7
HL		 1674 }
1675
1676 spin_lock_irqsave(&cs->lock, flags);
1677 if (!rep->timeout) {
1678 at_state->timer_expires = 0;
1679 at_state->timer_active = 0;
1680 } else if (rep->timeout > 0) { /* new timeout */
1681 at_state->timer_expires = rep->timeout * 10;
1682 at_state->timer_active = 1;
69049cc8 1683 ++at_state->timer_index;
14fa73a7
HL		 1684 }
1685 spin_unlock_irqrestore(&cs->lock, flags);
1686 }
1687 }
1688}
1689
1690static void schedule_sequence(struct cardstate *cs,
1691 struct at_state_t *at_state, int sequence)
1692{
1693 cs->cur_at_seq = sequence;
1694 gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL);
1695}
1696
1697static void process_command_flags(struct cardstate *cs)
1698{
1699 struct at_state_t *at_state = NULL;
1700 struct bc_state *bcs;
1701 int i;
1702 int sequence;
69049cc8 1703 unsigned long flags;
14fa73a7 1704
9d4bee2b 1705 cs->commands_pending = 0;
14fa73a7
HL		 1706
1707 if (cs->cur_at_seq) {
784d5858 1708 gig_dbg(DEBUG_CMD, "not searching scheduled commands: busy");
14fa73a7
HL		 1709 return;
1710 }
1711
784d5858 1712 gig_dbg(DEBUG_CMD, "searching scheduled commands");
14fa73a7
HL		 1713
1714 sequence = SEQ_NONE;
1715
1716 /* clear pending_commands and hangup channels on shutdown */
1717 if (cs->at_state.pending_commands & PC_SHUTDOWN) {
1718 cs->at_state.pending_commands &= ~PC_CIDMODE;
1719 for (i = 0; i < cs->channels; ++i) {
1720 bcs = cs->bcs + i;
1721 at_state = &bcs->at_state;
1722 at_state->pending_commands &=
1723 ~(PC_DLE1 | PC_ACCEPT | PC_DIAL);
1724 if (at_state->cid > 0)
1725 at_state->pending_commands |= PC_HUP;
1726 if (at_state->pending_commands & PC_CID) {
1727 at_state->pending_commands |= PC_NOCID;
1728 at_state->pending_commands &= ~PC_CID;
1729 }
1730 }
1731 }
1732
1733 /* clear pending_commands and hangup channels on reset */
1734 if (cs->at_state.pending_commands & PC_INIT) {
1735 cs->at_state.pending_commands &= ~PC_CIDMODE;
1736 for (i = 0; i < cs->channels; ++i) {
1737 bcs = cs->bcs + i;
1738 at_state = &bcs->at_state;
1739 at_state->pending_commands &=
1740 ~(PC_DLE1 | PC_ACCEPT | PC_DIAL);
1741 if (at_state->cid > 0)
1742 at_state->pending_commands |= PC_HUP;
9d4bee2b 1743 if (cs->mstate == MS_RECOVER) {
14fa73a7
HL		 1744 if (at_state->pending_commands & PC_CID) {
1745 at_state->pending_commands |= PC_NOCID;
1746 at_state->pending_commands &= ~PC_CID;
1747 }
1748 }
1749 }
1750 }
1751
1752 /* only switch back to unimodem mode, if no commands are pending and no channels are up */
69049cc8 1753 spin_lock_irqsave(&cs->lock, flags);
14fa73a7 1754 if (cs->at_state.pending_commands == PC_UMMODE
69049cc8 1755 && !cs->cidmode
14fa73a7 1756 && list_empty(&cs->temp_at_states)
9d4bee2b 1757 && cs->mode == M_CID) {
14fa73a7
HL		 1758 sequence = SEQ_UMMODE;
1759 at_state = &cs->at_state;
1760 for (i = 0; i < cs->channels; ++i) {
1761 bcs = cs->bcs + i;
1762 if (bcs->at_state.pending_commands ||
1763 bcs->at_state.cid > 0) {
1764 sequence = SEQ_NONE;
1765 break;
1766 }
1767 }
1768 }
69049cc8 1769 spin_unlock_irqrestore(&cs->lock, flags);
14fa73a7
HL		 1770 cs->at_state.pending_commands &= ~PC_UMMODE;
1771 if (sequence != SEQ_NONE) {
1772 schedule_sequence(cs, at_state, sequence);
1773 return;
1774 }
1775
1776 for (i = 0; i < cs->channels; ++i) {
1777 bcs = cs->bcs + i;
1778 if (bcs->at_state.pending_commands & PC_HUP) {
1779 bcs->at_state.pending_commands &= ~PC_HUP;
1780 if (bcs->at_state.pending_commands & PC_CID) {
1781 /* not yet dialing: PC_NOCID is sufficient */
1782 bcs->at_state.pending_commands |= PC_NOCID;
1783 bcs->at_state.pending_commands &= ~PC_CID;
1784 } else {
1785 schedule_sequence(cs, &bcs->at_state, SEQ_HUP);
1786 return;
1787 }
1788 }
1789 if (bcs->at_state.pending_commands & PC_NOCID) {
1790 bcs->at_state.pending_commands &= ~PC_NOCID;
1791 cs->curchannel = bcs->channel;
1792 schedule_sequence(cs, &cs->at_state, SEQ_NOCID);
1793 return;
1794 } else if (bcs->at_state.pending_commands & PC_DLE0) {
1795 bcs->at_state.pending_commands &= ~PC_DLE0;
1796 cs->curchannel = bcs->channel;
1797 schedule_sequence(cs, &cs->at_state, SEQ_DLE0);
1798 return;
1799 }
1800 }
1801
1802 list_for_each_entry(at_state, &cs->temp_at_states, list)
1803 if (at_state->pending_commands & PC_HUP) {
1804 at_state->pending_commands &= ~PC_HUP;
1805 schedule_sequence(cs, at_state, SEQ_HUP);
1806 return;
1807 }
1808
1809 if (cs->at_state.pending_commands & PC_INIT) {
1810 cs->at_state.pending_commands &= ~PC_INIT;
1811 cs->dle = 0; //FIXME
1812 cs->inbuf->inputstate = INS_command;
1813 //FIXME reset card state (or -> LOCK0)?
1814 schedule_sequence(cs, &cs->at_state, SEQ_INIT);
1815 return;
1816 }
1817 if (cs->at_state.pending_commands & PC_SHUTDOWN) {
1818 cs->at_state.pending_commands &= ~PC_SHUTDOWN;
1819 schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN);
1820 return;
1821 }
1822 if (cs->at_state.pending_commands & PC_CIDMODE) {
1823 cs->at_state.pending_commands &= ~PC_CIDMODE;
9d4bee2b 1824 if (cs->mode == M_UNIMODEM) {
14fa73a7 1825 cs->retry_count = 1;
14fa73a7
HL		 1826 schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE);
1827 return;
1828 }
1829 }
1830
1831 for (i = 0; i < cs->channels; ++i) {
1832 bcs = cs->bcs + i;
1833 if (bcs->at_state.pending_commands & PC_DLE1) {
1834 bcs->at_state.pending_commands &= ~PC_DLE1;
1835 cs->curchannel = bcs->channel;
1836 schedule_sequence(cs, &cs->at_state, SEQ_DLE1);
1837 return;
1838 }
1839 if (bcs->at_state.pending_commands & PC_ACCEPT) {
1840 bcs->at_state.pending_commands &= ~PC_ACCEPT;
1841 schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT);
1842 return;
1843 }
1844 if (bcs->at_state.pending_commands & PC_DIAL) {
1845 bcs->at_state.pending_commands &= ~PC_DIAL;
1846 schedule_sequence(cs, &bcs->at_state, SEQ_DIAL);
1847 return;
1848 }
1849 if (bcs->at_state.pending_commands & PC_CID) {
9d4bee2b 1850 switch (cs->mode) {
14fa73a7
HL		 1851 case M_UNIMODEM:
1852 cs->at_state.pending_commands |= PC_CIDMODE;
784d5858 1853 gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
9d4bee2b 1854 cs->commands_pending = 1;
14fa73a7
HL		 1855 return;
1856#ifdef GIG_MAYINITONDIAL
1857 case M_UNKNOWN:
1858 schedule_init(cs, MS_INIT);
1859 return;
1860#endif
1861 }
1862 bcs->at_state.pending_commands &= ~PC_CID;
1863 cs->curchannel = bcs->channel;
1864#ifdef GIG_RETRYCID
1865 cs->retry_count = 2;
1866#else
1867 cs->retry_count = 1;
1868#endif
1869 schedule_sequence(cs, &cs->at_state, SEQ_CID);
1870 return;
1871 }
1872 }
1873}
1874
1875static void process_events(struct cardstate *cs)
1876{
1877 struct event_t *ev;
1878 unsigned head, tail;
1879 int i;
1880 int check_flags = 0;
1881 int was_busy;
69049cc8 1882 unsigned long flags;
14fa73a7 1883
69049cc8
TS		 1884 spin_lock_irqsave(&cs->ev_lock, flags);
1885 head = cs->ev_head;
14fa73a7
HL		 1886
1887 for (i = 0; i < 2 * MAX_EVENTS; ++i) {
69049cc8 1888 tail = cs->ev_tail;
14fa73a7 1889 if (tail == head) {
9d4bee2b 1890 if (!check_flags && !cs->commands_pending)
14fa73a7
HL		 1891 break;
1892 check_flags = 0;
69049cc8 1893 spin_unlock_irqrestore(&cs->ev_lock, flags);
14fa73a7 1894 process_command_flags(cs);
69049cc8
TS		 1895 spin_lock_irqsave(&cs->ev_lock, flags);
1896 tail = cs->ev_tail;
14fa73a7 1897 if (tail == head) {
9d4bee2b 1898 if (!cs->commands_pending)
14fa73a7
HL		 1899 break;
1900 continue;
1901 }
1902 }
1903
1904 ev = cs->events + head;
1905 was_busy = cs->cur_at_seq != SEQ_NONE;
69049cc8 1906 spin_unlock_irqrestore(&cs->ev_lock, flags);
14fa73a7 1907 process_event(cs, ev);
69049cc8 1908 spin_lock_irqsave(&cs->ev_lock, flags);
14fa73a7
HL		 1909 kfree(ev->ptr);
1910 ev->ptr = NULL;
1911 if (was_busy && cs->cur_at_seq == SEQ_NONE)
1912 check_flags = 1;
1913
1914 head = (head + 1) % MAX_EVENTS;
69049cc8 1915 cs->ev_head = head;
14fa73a7
HL		 1916 }
1917
69049cc8
TS		 1918 spin_unlock_irqrestore(&cs->ev_lock, flags);
1919
14fa73a7 1920 if (i == 2 * MAX_EVENTS) {
784d5858
TS		 1921 dev_err(cs->dev,
1922 "infinite loop in process_events; aborting.\n");
14fa73a7
HL		 1923 }
1924}
1925
1926/* tasklet scheduled on any event received from the Gigaset device
1927 * parameter:
1928 * data ISDN controller state structure
1929 */
1930void gigaset_handle_event(unsigned long data)
1931{
1932 struct cardstate *cs = (struct cardstate *) data;
1933
14fa73a7 1934 /* handle incoming data on control/common channel */
9d4bee2b 1935 if (cs->inbuf->head != cs->inbuf->tail) {
784d5858 1936 gig_dbg(DEBUG_INTR, "processing new data");
14fa73a7
HL		 1937 cs->ops->handle_input(cs->inbuf);
1938 }
1939
1940 process_events(cs);
1941}
Linux kernel - Deliverables
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