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Commit | Line | Data |
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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 | ||
5d76fc21 | 16 | #include <linux/export.h> |
14fa73a7 HL |
17 | #include "gigaset.h" |
18 | ||
19 | /* ========================================================== */ | |
20 | /* bit masks for pending commands */ | |
917f5085 TS |
21 | #define PC_DIAL 0x001 |
22 | #define PC_HUP 0x002 | |
23 | #define PC_INIT 0x004 | |
24 | #define PC_DLE0 0x008 | |
25 | #define PC_DLE1 0x010 | |
26 | #define PC_SHUTDOWN 0x020 | |
27 | #define PC_ACCEPT 0x040 | |
28 | #define PC_CID 0x080 | |
29 | #define PC_NOCID 0x100 | |
30 | #define PC_CIDMODE 0x200 | |
31 | #define PC_UMMODE 0x400 | |
14fa73a7 HL |
32 | |
33 | /* types of modem responses */ | |
917f5085 TS |
34 | #define RT_NOTHING 0 |
35 | #define RT_ZSAU 1 | |
36 | #define RT_RING 2 | |
37 | #define RT_NUMBER 3 | |
38 | #define RT_STRING 4 | |
917f5085 | 39 | #define RT_ZCAU 6 |
14fa73a7 HL |
40 | |
41 | /* Possible ASCII responses */ | |
917f5085 | 42 | #define RSP_OK 0 |
2ed5e4ff | 43 | #define RSP_ERROR 1 |
917f5085 TS |
44 | #define RSP_ZGCI 3 |
45 | #define RSP_RING 4 | |
2ed5e4ff TS |
46 | #define RSP_ZVLS 5 |
47 | #define RSP_ZCAU 6 | |
48 | ||
49 | /* responses with values to store in at_state */ | |
50 | /* - numeric */ | |
917f5085 TS |
51 | #define RSP_VAR 100 |
52 | #define RSP_ZSAU (RSP_VAR + VAR_ZSAU) | |
53 | #define RSP_ZDLE (RSP_VAR + VAR_ZDLE) | |
917f5085 | 54 | #define RSP_ZCTP (RSP_VAR + VAR_ZCTP) |
2ed5e4ff | 55 | /* - string */ |
917f5085 TS |
56 | #define RSP_STR (RSP_VAR + VAR_NUM) |
57 | #define RSP_NMBR (RSP_STR + STR_NMBR) | |
58 | #define RSP_ZCPN (RSP_STR + STR_ZCPN) | |
59 | #define RSP_ZCON (RSP_STR + STR_ZCON) | |
60 | #define RSP_ZBC (RSP_STR + STR_ZBC) | |
61 | #define RSP_ZHLC (RSP_STR + STR_ZHLC) | |
2ed5e4ff | 62 | |
917f5085 | 63 | #define RSP_WRONG_CID -2 /* unknown cid in cmd */ |
917f5085 | 64 | #define RSP_INVAL -6 /* invalid response */ |
2ed5e4ff | 65 | #define RSP_NODEV -9 /* device not connected */ |
917f5085 TS |
66 | |
67 | #define RSP_NONE -19 | |
68 | #define RSP_STRING -20 | |
69 | #define RSP_NULL -21 | |
917f5085 TS |
70 | #define RSP_INIT -27 |
71 | #define RSP_ANY -26 | |
72 | #define RSP_LAST -28 | |
14fa73a7 HL |
73 | |
74 | /* actions for process_response */ | |
75 | #define ACT_NOTHING 0 | |
76 | #define ACT_SETDLE1 1 | |
77 | #define ACT_SETDLE0 2 | |
78 | #define ACT_FAILINIT 3 | |
79 | #define ACT_HUPMODEM 4 | |
80 | #define ACT_CONFIGMODE 5 | |
81 | #define ACT_INIT 6 | |
82 | #define ACT_DLE0 7 | |
83 | #define ACT_DLE1 8 | |
84 | #define ACT_FAILDLE0 9 | |
85 | #define ACT_FAILDLE1 10 | |
86 | #define ACT_RING 11 | |
87 | #define ACT_CID 12 | |
88 | #define ACT_FAILCID 13 | |
89 | #define ACT_SDOWN 14 | |
90 | #define ACT_FAILSDOWN 15 | |
91 | #define ACT_DEBUG 16 | |
92 | #define ACT_WARN 17 | |
93 | #define ACT_DIALING 18 | |
94 | #define ACT_ABORTDIAL 19 | |
95 | #define ACT_DISCONNECT 20 | |
96 | #define ACT_CONNECT 21 | |
97 | #define ACT_REMOTEREJECT 22 | |
917f5085 | 98 | #define ACT_CONNTIMEOUT 23 |
14fa73a7 HL |
99 | #define ACT_REMOTEHUP 24 |
100 | #define ACT_ABORTHUP 25 | |
101 | #define ACT_ICALL 26 | |
102 | #define ACT_ACCEPTED 27 | |
103 | #define ACT_ABORTACCEPT 28 | |
104 | #define ACT_TIMEOUT 29 | |
105 | #define ACT_GETSTRING 30 | |
106 | #define ACT_SETVER 31 | |
107 | #define ACT_FAILVER 32 | |
108 | #define ACT_GOTVER 33 | |
109 | #define ACT_TEST 34 | |
110 | #define ACT_ERROR 35 | |
111 | #define ACT_ABORTCID 36 | |
112 | #define ACT_ZCAU 37 | |
917f5085 TS |
113 | #define ACT_NOTIFY_BC_DOWN 38 |
114 | #define ACT_NOTIFY_BC_UP 39 | |
115 | #define ACT_DIAL 40 | |
116 | #define ACT_ACCEPT 41 | |
917f5085 TS |
117 | #define ACT_HUP 43 |
118 | #define ACT_IF_LOCK 44 | |
119 | #define ACT_START 45 | |
120 | #define ACT_STOP 46 | |
121 | #define ACT_FAKEDLE0 47 | |
122 | #define ACT_FAKEHUP 48 | |
123 | #define ACT_FAKESDOWN 49 | |
124 | #define ACT_SHUTDOWN 50 | |
125 | #define ACT_PROC_CIDMODE 51 | |
126 | #define ACT_UMODESET 52 | |
127 | #define ACT_FAILUMODE 53 | |
128 | #define ACT_CMODESET 54 | |
129 | #define ACT_FAILCMODE 55 | |
130 | #define ACT_IF_VER 56 | |
14fa73a7 HL |
131 | #define ACT_CMD 100 |
132 | ||
133 | /* at command sequences */ | |
917f5085 TS |
134 | #define SEQ_NONE 0 |
135 | #define SEQ_INIT 100 | |
136 | #define SEQ_DLE0 200 | |
137 | #define SEQ_DLE1 250 | |
138 | #define SEQ_CID 300 | |
139 | #define SEQ_NOCID 350 | |
140 | #define SEQ_HUP 400 | |
141 | #define SEQ_DIAL 600 | |
142 | #define SEQ_ACCEPT 720 | |
143 | #define SEQ_SHUTDOWN 500 | |
144 | #define SEQ_CIDMODE 10 | |
145 | #define SEQ_UMMODE 11 | |
14fa73a7 HL |
146 | |
147 | ||
c35a87ff TS |
148 | /* 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid), |
149 | * 400: hup, 500: reset, 600: dial, 700: ring */ | |
528efc6a | 150 | struct reply_t gigaset_tab_nocid[] = |
14fa73a7 | 151 | { |
c35a87ff TS |
152 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, |
153 | * action, command */ | |
154 | ||
155 | /* initialize device, set cid mode if possible */ | |
475be4d8 | 156 | {RSP_INIT, -1, -1, SEQ_INIT, 100, 1, {ACT_TIMEOUT} }, |
c35a87ff | 157 | |
475be4d8 JP |
158 | {EV_TIMEOUT, 100, 100, -1, 101, 3, {0}, "Z\r"}, |
159 | {RSP_OK, 101, 103, -1, 120, 5, {ACT_GETSTRING}, | |
160 | "+GMR\r"}, | |
c35a87ff | 161 | |
475be4d8 JP |
162 | {EV_TIMEOUT, 101, 101, -1, 102, 5, {0}, "Z\r"}, |
163 | {RSP_ERROR, 101, 101, -1, 102, 5, {0}, "Z\r"}, | |
c35a87ff | 164 | |
475be4d8 JP |
165 | {EV_TIMEOUT, 102, 102, -1, 108, 5, {ACT_SETDLE1}, |
166 | "^SDLE=0\r"}, | |
167 | {RSP_OK, 108, 108, -1, 104, -1}, | |
168 | {RSP_ZDLE, 104, 104, 0, 103, 5, {0}, "Z\r"}, | |
169 | {EV_TIMEOUT, 104, 104, -1, 0, 0, {ACT_FAILINIT} }, | |
170 | {RSP_ERROR, 108, 108, -1, 0, 0, {ACT_FAILINIT} }, | |
c35a87ff | 171 | |
475be4d8 JP |
172 | {EV_TIMEOUT, 108, 108, -1, 105, 2, {ACT_SETDLE0, |
173 | ACT_HUPMODEM, | |
174 | ACT_TIMEOUT} }, | |
175 | {EV_TIMEOUT, 105, 105, -1, 103, 5, {0}, "Z\r"}, | |
c35a87ff | 176 | |
475be4d8 JP |
177 | {RSP_ERROR, 102, 102, -1, 107, 5, {0}, "^GETPRE\r"}, |
178 | {RSP_OK, 107, 107, -1, 0, 0, {ACT_CONFIGMODE} }, | |
179 | {RSP_ERROR, 107, 107, -1, 0, 0, {ACT_FAILINIT} }, | |
180 | {EV_TIMEOUT, 107, 107, -1, 0, 0, {ACT_FAILINIT} }, | |
c35a87ff | 181 | |
475be4d8 JP |
182 | {RSP_ERROR, 103, 103, -1, 0, 0, {ACT_FAILINIT} }, |
183 | {EV_TIMEOUT, 103, 103, -1, 0, 0, {ACT_FAILINIT} }, | |
c35a87ff | 184 | |
475be4d8 | 185 | {RSP_STRING, 120, 120, -1, 121, -1, {ACT_SETVER} }, |
c35a87ff | 186 | |
475be4d8 JP |
187 | {EV_TIMEOUT, 120, 121, -1, 0, 0, {ACT_FAILVER, |
188 | ACT_INIT} }, | |
189 | {RSP_ERROR, 120, 121, -1, 0, 0, {ACT_FAILVER, | |
190 | ACT_INIT} }, | |
191 | {RSP_OK, 121, 121, -1, 0, 0, {ACT_GOTVER, | |
192 | ACT_INIT} }, | |
e055d03d | 193 | {RSP_NONE, 121, 121, -1, 120, 0, {ACT_GETSTRING} }, |
c35a87ff TS |
194 | |
195 | /* leave dle mode */ | |
475be4d8 JP |
196 | {RSP_INIT, 0, 0, SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"}, |
197 | {RSP_OK, 201, 201, -1, 202, -1}, | |
198 | {RSP_ZDLE, 202, 202, 0, 0, 0, {ACT_DLE0} }, | |
199 | {RSP_NODEV, 200, 249, -1, 0, 0, {ACT_FAKEDLE0} }, | |
200 | {RSP_ERROR, 200, 249, -1, 0, 0, {ACT_FAILDLE0} }, | |
201 | {EV_TIMEOUT, 200, 249, -1, 0, 0, {ACT_FAILDLE0} }, | |
c35a87ff TS |
202 | |
203 | /* enter dle mode */ | |
475be4d8 JP |
204 | {RSP_INIT, 0, 0, SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"}, |
205 | {RSP_OK, 251, 251, -1, 252, -1}, | |
206 | {RSP_ZDLE, 252, 252, 1, 0, 0, {ACT_DLE1} }, | |
207 | {RSP_ERROR, 250, 299, -1, 0, 0, {ACT_FAILDLE1} }, | |
208 | {EV_TIMEOUT, 250, 299, -1, 0, 0, {ACT_FAILDLE1} }, | |
c35a87ff TS |
209 | |
210 | /* incoming call */ | |
475be4d8 | 211 | {RSP_RING, -1, -1, -1, -1, -1, {ACT_RING} }, |
c35a87ff TS |
212 | |
213 | /* get cid */ | |
475be4d8 JP |
214 | {RSP_INIT, 0, 0, SEQ_CID, 301, 5, {0}, "^SGCI?\r"}, |
215 | {RSP_OK, 301, 301, -1, 302, -1}, | |
216 | {RSP_ZGCI, 302, 302, -1, 0, 0, {ACT_CID} }, | |
217 | {RSP_ERROR, 301, 349, -1, 0, 0, {ACT_FAILCID} }, | |
218 | {EV_TIMEOUT, 301, 349, -1, 0, 0, {ACT_FAILCID} }, | |
c35a87ff TS |
219 | |
220 | /* enter cid mode */ | |
475be4d8 JP |
221 | {RSP_INIT, 0, 0, SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"}, |
222 | {RSP_OK, 150, 150, -1, 0, 0, {ACT_CMODESET} }, | |
223 | {RSP_ERROR, 150, 150, -1, 0, 0, {ACT_FAILCMODE} }, | |
224 | {EV_TIMEOUT, 150, 150, -1, 0, 0, {ACT_FAILCMODE} }, | |
c35a87ff TS |
225 | |
226 | /* leave cid mode */ | |
475be4d8 JP |
227 | {RSP_INIT, 0, 0, SEQ_UMMODE, 160, 5, {0}, "Z\r"}, |
228 | {RSP_OK, 160, 160, -1, 0, 0, {ACT_UMODESET} }, | |
229 | {RSP_ERROR, 160, 160, -1, 0, 0, {ACT_FAILUMODE} }, | |
230 | {EV_TIMEOUT, 160, 160, -1, 0, 0, {ACT_FAILUMODE} }, | |
c35a87ff TS |
231 | |
232 | /* abort getting cid */ | |
475be4d8 | 233 | {RSP_INIT, 0, 0, SEQ_NOCID, 0, 0, {ACT_ABORTCID} }, |
c35a87ff TS |
234 | |
235 | /* reset */ | |
475be4d8 JP |
236 | {RSP_INIT, 0, 0, SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"}, |
237 | {RSP_OK, 504, 504, -1, 0, 0, {ACT_SDOWN} }, | |
238 | {RSP_ERROR, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} }, | |
239 | {EV_TIMEOUT, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} }, | |
240 | {RSP_NODEV, 501, 599, -1, 0, 0, {ACT_FAKESDOWN} }, | |
241 | ||
242 | {EV_PROC_CIDMODE, -1, -1, -1, -1, -1, {ACT_PROC_CIDMODE} }, | |
243 | {EV_IF_LOCK, -1, -1, -1, -1, -1, {ACT_IF_LOCK} }, | |
244 | {EV_IF_VER, -1, -1, -1, -1, -1, {ACT_IF_VER} }, | |
245 | {EV_START, -1, -1, -1, -1, -1, {ACT_START} }, | |
246 | {EV_STOP, -1, -1, -1, -1, -1, {ACT_STOP} }, | |
247 | {EV_SHUTDOWN, -1, -1, -1, -1, -1, {ACT_SHUTDOWN} }, | |
c35a87ff TS |
248 | |
249 | /* misc. */ | |
475be4d8 JP |
250 | {RSP_ERROR, -1, -1, -1, -1, -1, {ACT_ERROR} }, |
251 | {RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} }, | |
252 | {RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} }, | |
253 | {RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} }, | |
254 | {RSP_LAST} | |
14fa73a7 HL |
255 | }; |
256 | ||
c35a87ff TS |
257 | /* 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring, |
258 | * 400: hup, 750: accepted icall */ | |
528efc6a | 259 | struct reply_t gigaset_tab_cid[] = |
14fa73a7 | 260 | { |
c35a87ff TS |
261 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, |
262 | * action, command */ | |
263 | ||
264 | /* dial */ | |
475be4d8 JP |
265 | {EV_DIAL, -1, -1, -1, -1, -1, {ACT_DIAL} }, |
266 | {RSP_INIT, 0, 0, SEQ_DIAL, 601, 5, {ACT_CMD + AT_BC} }, | |
267 | {RSP_OK, 601, 601, -1, 603, 5, {ACT_CMD + AT_PROTO} }, | |
268 | {RSP_OK, 603, 603, -1, 604, 5, {ACT_CMD + AT_TYPE} }, | |
269 | {RSP_OK, 604, 604, -1, 605, 5, {ACT_CMD + AT_MSN} }, | |
270 | {RSP_NULL, 605, 605, -1, 606, 5, {ACT_CMD + AT_CLIP} }, | |
271 | {RSP_OK, 605, 605, -1, 606, 5, {ACT_CMD + AT_CLIP} }, | |
272 | {RSP_NULL, 606, 606, -1, 607, 5, {ACT_CMD + AT_ISO} }, | |
273 | {RSP_OK, 606, 606, -1, 607, 5, {ACT_CMD + AT_ISO} }, | |
274 | {RSP_OK, 607, 607, -1, 608, 5, {0}, "+VLS=17\r"}, | |
275 | {RSP_OK, 608, 608, -1, 609, -1}, | |
276 | {RSP_ZSAU, 609, 609, ZSAU_PROCEEDING, 610, 5, {ACT_CMD + AT_DIAL} }, | |
277 | {RSP_OK, 610, 610, -1, 650, 0, {ACT_DIALING} }, | |
278 | ||
279 | {RSP_ERROR, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} }, | |
280 | {EV_TIMEOUT, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} }, | |
c35a87ff TS |
281 | |
282 | /* optional dialing responses */ | |
475be4d8 JP |
283 | {EV_BC_OPEN, 650, 650, -1, 651, -1}, |
284 | {RSP_ZVLS, 609, 651, 17, -1, -1, {ACT_DEBUG} }, | |
285 | {RSP_ZCTP, 610, 651, -1, -1, -1, {ACT_DEBUG} }, | |
286 | {RSP_ZCPN, 610, 651, -1, -1, -1, {ACT_DEBUG} }, | |
287 | {RSP_ZSAU, 650, 651, ZSAU_CALL_DELIVERED, -1, -1, {ACT_DEBUG} }, | |
c35a87ff TS |
288 | |
289 | /* connect */ | |
475be4d8 JP |
290 | {RSP_ZSAU, 650, 650, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} }, |
291 | {RSP_ZSAU, 651, 651, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT, | |
292 | ACT_NOTIFY_BC_UP} }, | |
293 | {RSP_ZSAU, 750, 750, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} }, | |
294 | {RSP_ZSAU, 751, 751, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT, | |
295 | ACT_NOTIFY_BC_UP} }, | |
296 | {EV_BC_OPEN, 800, 800, -1, 800, -1, {ACT_NOTIFY_BC_UP} }, | |
c35a87ff TS |
297 | |
298 | /* remote hangup */ | |
475be4d8 JP |
299 | {RSP_ZSAU, 650, 651, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT} }, |
300 | {RSP_ZSAU, 750, 751, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} }, | |
301 | {RSP_ZSAU, 800, 800, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} }, | |
c35a87ff TS |
302 | |
303 | /* hangup */ | |
475be4d8 JP |
304 | {EV_HUP, -1, -1, -1, -1, -1, {ACT_HUP} }, |
305 | {RSP_INIT, -1, -1, SEQ_HUP, 401, 5, {0}, "+VLS=0\r"}, | |
306 | {RSP_OK, 401, 401, -1, 402, 5}, | |
307 | {RSP_ZVLS, 402, 402, 0, 403, 5}, | |
308 | {RSP_ZSAU, 403, 403, ZSAU_DISCONNECT_REQ, -1, -1, {ACT_DEBUG} }, | |
309 | {RSP_ZSAU, 403, 403, ZSAU_NULL, 0, 0, {ACT_DISCONNECT} }, | |
310 | {RSP_NODEV, 401, 403, -1, 0, 0, {ACT_FAKEHUP} }, | |
311 | {RSP_ERROR, 401, 401, -1, 0, 0, {ACT_ABORTHUP} }, | |
312 | {EV_TIMEOUT, 401, 403, -1, 0, 0, {ACT_ABORTHUP} }, | |
313 | ||
314 | {EV_BC_CLOSED, 0, 0, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} }, | |
c35a87ff TS |
315 | |
316 | /* ring */ | |
475be4d8 JP |
317 | {RSP_ZBC, 700, 700, -1, -1, -1, {0} }, |
318 | {RSP_ZHLC, 700, 700, -1, -1, -1, {0} }, | |
319 | {RSP_NMBR, 700, 700, -1, -1, -1, {0} }, | |
320 | {RSP_ZCPN, 700, 700, -1, -1, -1, {0} }, | |
321 | {RSP_ZCTP, 700, 700, -1, -1, -1, {0} }, | |
322 | {EV_TIMEOUT, 700, 700, -1, 720, 720, {ACT_ICALL} }, | |
323 | {EV_BC_CLOSED, 720, 720, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} }, | |
c35a87ff TS |
324 | |
325 | /*accept icall*/ | |
475be4d8 JP |
326 | {EV_ACCEPT, -1, -1, -1, -1, -1, {ACT_ACCEPT} }, |
327 | {RSP_INIT, 720, 720, SEQ_ACCEPT, 721, 5, {ACT_CMD + AT_PROTO} }, | |
328 | {RSP_OK, 721, 721, -1, 722, 5, {ACT_CMD + AT_ISO} }, | |
329 | {RSP_OK, 722, 722, -1, 723, 5, {0}, "+VLS=17\r"}, | |
330 | {RSP_OK, 723, 723, -1, 724, 5, {0} }, | |
331 | {RSP_ZVLS, 724, 724, 17, 750, 50, {ACT_ACCEPTED} }, | |
332 | {RSP_ERROR, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} }, | |
333 | {EV_TIMEOUT, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} }, | |
334 | {RSP_ZSAU, 700, 729, ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT} }, | |
335 | {RSP_ZSAU, 700, 729, ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT} }, | |
336 | {RSP_ZSAU, 700, 729, ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT} }, | |
337 | ||
338 | {EV_BC_OPEN, 750, 750, -1, 751, -1}, | |
339 | {EV_TIMEOUT, 750, 751, -1, 0, 0, {ACT_CONNTIMEOUT} }, | |
c35a87ff TS |
340 | |
341 | /* B channel closed (general case) */ | |
475be4d8 | 342 | {EV_BC_CLOSED, -1, -1, -1, -1, -1, {ACT_NOTIFY_BC_DOWN} }, |
c35a87ff TS |
343 | |
344 | /* misc. */ | |
475be4d8 JP |
345 | {RSP_ZCON, -1, -1, -1, -1, -1, {ACT_DEBUG} }, |
346 | {RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} }, | |
347 | {RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} }, | |
348 | {RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} }, | |
349 | {RSP_LAST} | |
14fa73a7 HL |
350 | }; |
351 | ||
352 | ||
50e4fe91 TS |
353 | static const struct resp_type_t { |
354 | unsigned char *response; | |
355 | int resp_code; | |
356 | int type; | |
357 | } resp_type[] = | |
14fa73a7 | 358 | { |
917f5085 TS |
359 | {"OK", RSP_OK, RT_NOTHING}, |
360 | {"ERROR", RSP_ERROR, RT_NOTHING}, | |
361 | {"ZSAU", RSP_ZSAU, RT_ZSAU}, | |
362 | {"ZCAU", RSP_ZCAU, RT_ZCAU}, | |
363 | {"RING", RSP_RING, RT_RING}, | |
364 | {"ZGCI", RSP_ZGCI, RT_NUMBER}, | |
365 | {"ZVLS", RSP_ZVLS, RT_NUMBER}, | |
366 | {"ZCTP", RSP_ZCTP, RT_NUMBER}, | |
367 | {"ZDLE", RSP_ZDLE, RT_NUMBER}, | |
917f5085 TS |
368 | {"ZHLC", RSP_ZHLC, RT_STRING}, |
369 | {"ZBC", RSP_ZBC, RT_STRING}, | |
370 | {"NMBR", RSP_NMBR, RT_STRING}, | |
371 | {"ZCPN", RSP_ZCPN, RT_STRING}, | |
372 | {"ZCON", RSP_ZCON, RT_STRING}, | |
c35a87ff | 373 | {NULL, 0, 0} |
14fa73a7 HL |
374 | }; |
375 | ||
50e4fe91 TS |
376 | static const struct zsau_resp_t { |
377 | unsigned char *str; | |
378 | int code; | |
379 | } zsau_resp[] = | |
380 | { | |
381 | {"OUTGOING_CALL_PROCEEDING", ZSAU_OUTGOING_CALL_PROCEEDING}, | |
382 | {"CALL_DELIVERED", ZSAU_CALL_DELIVERED}, | |
383 | {"ACTIVE", ZSAU_ACTIVE}, | |
384 | {"DISCONNECT_IND", ZSAU_DISCONNECT_IND}, | |
385 | {"NULL", ZSAU_NULL}, | |
386 | {"DISCONNECT_REQ", ZSAU_DISCONNECT_REQ}, | |
387 | {NULL, ZSAU_UNKNOWN} | |
388 | }; | |
389 | ||
14fa73a7 HL |
390 | /* retrieve CID from parsed response |
391 | * returns 0 if no CID, -1 if invalid CID, or CID value 1..65535 | |
392 | */ | |
393 | static int cid_of_response(char *s) | |
394 | { | |
19eccc2b | 395 | int cid; |
c9741380 | 396 | int rc; |
14fa73a7 HL |
397 | |
398 | if (s[-1] != ';') | |
399 | return 0; /* no CID separator */ | |
19eccc2b | 400 | rc = kstrtoint(s, 10, &cid); |
c9741380 | 401 | if (rc) |
14fa73a7 HL |
402 | return 0; /* CID not numeric */ |
403 | if (cid < 1 || cid > 65535) | |
404 | return -1; /* CID out of range */ | |
405 | return cid; | |
14fa73a7 HL |
406 | } |
407 | ||
1cec9727 TS |
408 | /** |
409 | * gigaset_handle_modem_response() - process received modem response | |
410 | * @cs: device descriptor structure. | |
411 | * | |
412 | * Called by asyncdata/isocdata if a block of data received from the | |
413 | * device must be processed as a modem command response. The data is | |
414 | * already in the cs structure. | |
14fa73a7 HL |
415 | */ |
416 | void gigaset_handle_modem_response(struct cardstate *cs) | |
417 | { | |
418 | unsigned char *argv[MAX_REC_PARAMS + 1]; | |
419 | int params; | |
420 | int i, j; | |
35dc8457 | 421 | const struct resp_type_t *rt; |
50e4fe91 | 422 | const struct zsau_resp_t *zr; |
14fa73a7 HL |
423 | int curarg; |
424 | unsigned long flags; | |
425 | unsigned next, tail, head; | |
426 | struct event_t *event; | |
427 | int resp_code; | |
428 | int param_type; | |
429 | int abort; | |
430 | size_t len; | |
431 | int cid; | |
432 | int rawstring; | |
433 | ||
14fa73a7 HL |
434 | len = cs->cbytes; |
435 | if (!len) { | |
436 | /* ignore additional LFs/CRs (M10x config mode or cx100) */ | |
784d5858 | 437 | gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]); |
14fa73a7 HL |
438 | return; |
439 | } | |
440 | cs->respdata[len] = 0; | |
14fa73a7 HL |
441 | argv[0] = cs->respdata; |
442 | params = 1; | |
443 | if (cs->at_state.getstring) { | |
444 | /* getstring only allowed without cid at the moment */ | |
445 | cs->at_state.getstring = 0; | |
446 | rawstring = 1; | |
447 | cid = 0; | |
448 | } else { | |
449 | /* parse line */ | |
450 | for (i = 0; i < len; i++) | |
451 | switch (cs->respdata[i]) { | |
452 | case ';': | |
453 | case ',': | |
454 | case '=': | |
455 | if (params > MAX_REC_PARAMS) { | |
784d5858 | 456 | dev_warn(cs->dev, |
475be4d8 | 457 | "too many parameters in response\n"); |
14fa73a7 HL |
458 | /* need last parameter (might be CID) */ |
459 | params--; | |
460 | } | |
461 | argv[params++] = cs->respdata + i + 1; | |
462 | } | |
463 | ||
464 | rawstring = 0; | |
475be4d8 | 465 | cid = params > 1 ? cid_of_response(argv[params - 1]) : 0; |
14fa73a7 HL |
466 | if (cid < 0) { |
467 | gigaset_add_event(cs, &cs->at_state, RSP_INVAL, | |
784d5858 | 468 | NULL, 0, NULL); |
14fa73a7 HL |
469 | return; |
470 | } | |
471 | ||
472 | for (j = 1; j < params; ++j) | |
473 | argv[j][-1] = 0; | |
474 | ||
1528b18f | 475 | gig_dbg(DEBUG_EVENT, "CMD received: %s", argv[0]); |
14fa73a7 HL |
476 | if (cid) { |
477 | --params; | |
1528b18f | 478 | gig_dbg(DEBUG_EVENT, "CID: %s", argv[params]); |
14fa73a7 | 479 | } |
1528b18f | 480 | gig_dbg(DEBUG_EVENT, "available params: %d", params - 1); |
14fa73a7 | 481 | for (j = 1; j < params; j++) |
1528b18f | 482 | gig_dbg(DEBUG_EVENT, "param %d: %s", j, argv[j]); |
14fa73a7 HL |
483 | } |
484 | ||
485 | spin_lock_irqsave(&cs->ev_lock, flags); | |
69049cc8 TS |
486 | head = cs->ev_head; |
487 | tail = cs->ev_tail; | |
14fa73a7 HL |
488 | |
489 | abort = 1; | |
490 | curarg = 0; | |
491 | while (curarg < params) { | |
492 | next = (tail + 1) % MAX_EVENTS; | |
493 | if (unlikely(next == head)) { | |
784d5858 | 494 | dev_err(cs->dev, "event queue full\n"); |
14fa73a7 HL |
495 | break; |
496 | } | |
497 | ||
498 | event = cs->events + tail; | |
499 | event->at_state = NULL; | |
500 | event->cid = cid; | |
501 | event->ptr = NULL; | |
502 | event->arg = NULL; | |
503 | tail = next; | |
504 | ||
505 | if (rawstring) { | |
506 | resp_code = RSP_STRING; | |
507 | param_type = RT_STRING; | |
508 | } else { | |
509 | for (rt = resp_type; rt->response; ++rt) | |
510 | if (!strcmp(argv[curarg], rt->response)) | |
511 | break; | |
512 | ||
513 | if (!rt->response) { | |
2ed5e4ff TS |
514 | event->type = RSP_NONE; |
515 | gig_dbg(DEBUG_EVENT, | |
516 | "unknown modem response: '%s'\n", | |
517 | argv[curarg]); | |
14fa73a7 HL |
518 | break; |
519 | } | |
520 | ||
521 | resp_code = rt->resp_code; | |
522 | param_type = rt->type; | |
523 | ++curarg; | |
524 | } | |
525 | ||
526 | event->type = resp_code; | |
527 | ||
528 | switch (param_type) { | |
529 | case RT_NOTHING: | |
530 | break; | |
531 | case RT_RING: | |
532 | if (!cid) { | |
784d5858 TS |
533 | dev_err(cs->dev, |
534 | "received RING without CID!\n"); | |
14fa73a7 HL |
535 | event->type = RSP_INVAL; |
536 | abort = 1; | |
537 | } else { | |
538 | event->cid = 0; | |
539 | event->parameter = cid; | |
540 | abort = 0; | |
541 | } | |
542 | break; | |
543 | case RT_ZSAU: | |
544 | if (curarg >= params) { | |
545 | event->parameter = ZSAU_NONE; | |
546 | break; | |
547 | } | |
50e4fe91 TS |
548 | for (zr = zsau_resp; zr->str; ++zr) |
549 | if (!strcmp(argv[curarg], zr->str)) | |
550 | break; | |
551 | event->parameter = zr->code; | |
552 | if (!zr->str) | |
784d5858 | 553 | dev_warn(cs->dev, |
475be4d8 | 554 | "%s: unknown parameter %s after ZSAU\n", |
784d5858 | 555 | __func__, argv[curarg]); |
14fa73a7 HL |
556 | ++curarg; |
557 | break; | |
558 | case RT_STRING: | |
559 | if (curarg < params) { | |
784d5858 TS |
560 | event->ptr = kstrdup(argv[curarg], GFP_ATOMIC); |
561 | if (!event->ptr) | |
562 | dev_err(cs->dev, "out of memory\n"); | |
14fa73a7 HL |
563 | ++curarg; |
564 | } | |
1528b18f | 565 | gig_dbg(DEBUG_EVENT, "string==%s", |
236b87c2 | 566 | event->ptr ? (char *) event->ptr : "NULL"); |
14fa73a7 HL |
567 | break; |
568 | case RT_ZCAU: | |
569 | event->parameter = -1; | |
570 | if (curarg + 1 < params) { | |
19eccc2b | 571 | u8 type, value; |
c9741380 | 572 | |
19eccc2b AD |
573 | i = kstrtou8(argv[curarg++], 16, &type); |
574 | j = kstrtou8(argv[curarg++], 16, &value); | |
575 | if (i == 0 && j == 0) | |
c9741380 | 576 | event->parameter = (type << 8) | value; |
14fa73a7 HL |
577 | } else |
578 | curarg = params - 1; | |
579 | break; | |
580 | case RT_NUMBER: | |
19eccc2b AD |
581 | if (curarg >= params || |
582 | kstrtoint(argv[curarg++], 10, &event->parameter)) | |
583 | event->parameter = -1; | |
1528b18f | 584 | gig_dbg(DEBUG_EVENT, "parameter==%d", event->parameter); |
14fa73a7 HL |
585 | break; |
586 | } | |
587 | ||
588 | if (resp_code == RSP_ZDLE) | |
589 | cs->dle = event->parameter; | |
590 | ||
591 | if (abort) | |
592 | break; | |
593 | } | |
594 | ||
69049cc8 | 595 | cs->ev_tail = tail; |
14fa73a7 HL |
596 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
597 | ||
598 | if (curarg != params) | |
1528b18f | 599 | gig_dbg(DEBUG_EVENT, |
784d5858 TS |
600 | "invalid number of processed parameters: %d/%d", |
601 | curarg, params); | |
14fa73a7 HL |
602 | } |
603 | EXPORT_SYMBOL_GPL(gigaset_handle_modem_response); | |
604 | ||
605 | /* disconnect | |
606 | * process closing of connection associated with given AT state structure | |
607 | */ | |
608 | static void disconnect(struct at_state_t **at_state_p) | |
609 | { | |
610 | unsigned long flags; | |
d48c7784 TS |
611 | struct bc_state *bcs = (*at_state_p)->bcs; |
612 | struct cardstate *cs = (*at_state_p)->cs; | |
14fa73a7 | 613 | |
69049cc8 TS |
614 | spin_lock_irqsave(&cs->lock, flags); |
615 | ++(*at_state_p)->seq_index; | |
14fa73a7 HL |
616 | |
617 | /* revert to selected idle mode */ | |
69049cc8 | 618 | if (!cs->cidmode) { |
14fa73a7 | 619 | cs->at_state.pending_commands |= PC_UMMODE; |
1528b18f | 620 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
9d4bee2b | 621 | cs->commands_pending = 1; |
14fa73a7 | 622 | } |
69049cc8 | 623 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
624 | |
625 | if (bcs) { | |
626 | /* B channel assigned: invoke hardware specific handler */ | |
627 | cs->ops->close_bchannel(bcs); | |
3305adff TS |
628 | /* notify LL */ |
629 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
630 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
088ec0cc | 631 | gigaset_isdn_hupD(bcs); |
3305adff | 632 | } |
14fa73a7 HL |
633 | } else { |
634 | /* no B channel assigned: just deallocate */ | |
635 | spin_lock_irqsave(&cs->lock, flags); | |
636 | list_del(&(*at_state_p)->list); | |
637 | kfree(*at_state_p); | |
638 | *at_state_p = NULL; | |
639 | spin_unlock_irqrestore(&cs->lock, flags); | |
640 | } | |
641 | } | |
642 | ||
643 | /* get_free_channel | |
644 | * get a free AT state structure: either one of those associated with the | |
645 | * B channels of the Gigaset device, or if none of those is available, | |
646 | * a newly allocated one with bcs=NULL | |
647 | * The structure should be freed by calling disconnect() after use. | |
648 | */ | |
649 | static inline struct at_state_t *get_free_channel(struct cardstate *cs, | |
784d5858 | 650 | int cid) |
14fa73a7 | 651 | /* cids: >0: siemens-cid |
475be4d8 JP |
652 | 0: without cid |
653 | -1: no cid assigned yet | |
14fa73a7 HL |
654 | */ |
655 | { | |
656 | unsigned long flags; | |
657 | int i; | |
658 | struct at_state_t *ret; | |
659 | ||
660 | for (i = 0; i < cs->channels; ++i) | |
661 | if (gigaset_get_channel(cs->bcs + i)) { | |
662 | ret = &cs->bcs[i].at_state; | |
663 | ret->cid = cid; | |
664 | return ret; | |
665 | } | |
666 | ||
667 | spin_lock_irqsave(&cs->lock, flags); | |
668 | ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC); | |
669 | if (ret) { | |
670 | gigaset_at_init(ret, NULL, cs, cid); | |
671 | list_add(&ret->list, &cs->temp_at_states); | |
672 | } | |
673 | spin_unlock_irqrestore(&cs->lock, flags); | |
674 | return ret; | |
675 | } | |
676 | ||
677 | static void init_failed(struct cardstate *cs, int mode) | |
678 | { | |
679 | int i; | |
680 | struct at_state_t *at_state; | |
681 | ||
682 | cs->at_state.pending_commands &= ~PC_INIT; | |
9d4bee2b TS |
683 | cs->mode = mode; |
684 | cs->mstate = MS_UNINITIALIZED; | |
14fa73a7 HL |
685 | gigaset_free_channels(cs); |
686 | for (i = 0; i < cs->channels; ++i) { | |
687 | at_state = &cs->bcs[i].at_state; | |
688 | if (at_state->pending_commands & PC_CID) { | |
689 | at_state->pending_commands &= ~PC_CID; | |
690 | at_state->pending_commands |= PC_NOCID; | |
9d4bee2b | 691 | cs->commands_pending = 1; |
14fa73a7 HL |
692 | } |
693 | } | |
694 | } | |
695 | ||
696 | static void schedule_init(struct cardstate *cs, int state) | |
697 | { | |
698 | if (cs->at_state.pending_commands & PC_INIT) { | |
1528b18f | 699 | gig_dbg(DEBUG_EVENT, "not scheduling PC_INIT again"); |
14fa73a7 HL |
700 | return; |
701 | } | |
9d4bee2b TS |
702 | cs->mstate = state; |
703 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
704 | gigaset_block_channels(cs); |
705 | cs->at_state.pending_commands |= PC_INIT; | |
1528b18f | 706 | gig_dbg(DEBUG_EVENT, "Scheduling PC_INIT"); |
9d4bee2b | 707 | cs->commands_pending = 1; |
14fa73a7 HL |
708 | } |
709 | ||
917f5085 TS |
710 | /* Add "AT" to a command, add the cid, dle encode it, send the result to the |
711 | hardware. */ | |
14fa73a7 | 712 | static void send_command(struct cardstate *cs, const char *cmd, int cid, |
784d5858 | 713 | int dle, gfp_t kmallocflags) |
14fa73a7 | 714 | { |
e3628dd1 TS |
715 | struct cmdbuf_t *cb; |
716 | size_t buflen; | |
14fa73a7 | 717 | |
e3628dd1 TS |
718 | buflen = strlen(cmd) + 12; /* DLE ( A T 1 2 3 4 5 <cmd> DLE ) \0 */ |
719 | cb = kmalloc(sizeof(struct cmdbuf_t) + buflen, kmallocflags); | |
720 | if (!cb) { | |
721 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
784d5858 TS |
722 | return; |
723 | } | |
e3628dd1 TS |
724 | if (cid > 0 && cid <= 65535) |
725 | cb->len = snprintf(cb->buf, buflen, | |
475be4d8 JP |
726 | dle ? "\020(AT%d%s\020)" : "AT%d%s", |
727 | cid, cmd); | |
e3628dd1 TS |
728 | else |
729 | cb->len = snprintf(cb->buf, buflen, | |
475be4d8 JP |
730 | dle ? "\020(AT%s\020)" : "AT%s", |
731 | cmd); | |
e3628dd1 TS |
732 | cb->offset = 0; |
733 | cb->next = NULL; | |
734 | cb->wake_tasklet = NULL; | |
735 | cs->ops->write_cmd(cs, cb); | |
14fa73a7 HL |
736 | } |
737 | ||
738 | static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid) | |
739 | { | |
740 | struct at_state_t *at_state; | |
741 | int i; | |
742 | unsigned long flags; | |
743 | ||
744 | if (cid == 0) | |
745 | return &cs->at_state; | |
746 | ||
747 | for (i = 0; i < cs->channels; ++i) | |
748 | if (cid == cs->bcs[i].at_state.cid) | |
749 | return &cs->bcs[i].at_state; | |
750 | ||
751 | spin_lock_irqsave(&cs->lock, flags); | |
752 | ||
753 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
754 | if (cid == at_state->cid) { | |
755 | spin_unlock_irqrestore(&cs->lock, flags); | |
756 | return at_state; | |
757 | } | |
758 | ||
759 | spin_unlock_irqrestore(&cs->lock, flags); | |
760 | ||
761 | return NULL; | |
762 | } | |
763 | ||
764 | static void bchannel_down(struct bc_state *bcs) | |
765 | { | |
14fa73a7 HL |
766 | if (bcs->chstate & CHS_B_UP) { |
767 | bcs->chstate &= ~CHS_B_UP; | |
088ec0cc | 768 | gigaset_isdn_hupB(bcs); |
14fa73a7 HL |
769 | } |
770 | ||
771 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
772 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
088ec0cc | 773 | gigaset_isdn_hupD(bcs); |
14fa73a7 HL |
774 | } |
775 | ||
776 | gigaset_free_channel(bcs); | |
777 | ||
778 | gigaset_bcs_reinit(bcs); | |
779 | } | |
780 | ||
781 | static void bchannel_up(struct bc_state *bcs) | |
782 | { | |
14fa73a7 | 783 | if (bcs->chstate & CHS_B_UP) { |
784d5858 TS |
784 | dev_notice(bcs->cs->dev, "%s: B channel already up\n", |
785 | __func__); | |
14fa73a7 HL |
786 | return; |
787 | } | |
788 | ||
789 | bcs->chstate |= CHS_B_UP; | |
088ec0cc | 790 | gigaset_isdn_connB(bcs); |
14fa73a7 HL |
791 | } |
792 | ||
c35a87ff | 793 | static void start_dial(struct at_state_t *at_state, void *data, |
475be4d8 | 794 | unsigned seq_index) |
14fa73a7 HL |
795 | { |
796 | struct bc_state *bcs = at_state->bcs; | |
797 | struct cardstate *cs = at_state->cs; | |
088ec0cc | 798 | char **commands = data; |
69049cc8 | 799 | unsigned long flags; |
088ec0cc | 800 | int i; |
14fa73a7 HL |
801 | |
802 | bcs->chstate |= CHS_NOTIFY_LL; | |
14fa73a7 | 803 | |
69049cc8 TS |
804 | spin_lock_irqsave(&cs->lock, flags); |
805 | if (at_state->seq_index != seq_index) { | |
806 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 807 | goto error; |
69049cc8 TS |
808 | } |
809 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 810 | |
088ec0cc TS |
811 | for (i = 0; i < AT_NUM; ++i) { |
812 | kfree(bcs->commands[i]); | |
813 | bcs->commands[i] = commands[i]; | |
814 | } | |
14fa73a7 HL |
815 | |
816 | at_state->pending_commands |= PC_CID; | |
1528b18f | 817 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CID"); |
9d4bee2b | 818 | cs->commands_pending = 1; |
14fa73a7 HL |
819 | return; |
820 | ||
821 | error: | |
088ec0cc TS |
822 | for (i = 0; i < AT_NUM; ++i) { |
823 | kfree(commands[i]); | |
824 | commands[i] = NULL; | |
825 | } | |
14fa73a7 | 826 | at_state->pending_commands |= PC_NOCID; |
1528b18f | 827 | gig_dbg(DEBUG_EVENT, "Scheduling PC_NOCID"); |
9d4bee2b | 828 | cs->commands_pending = 1; |
14fa73a7 HL |
829 | return; |
830 | } | |
831 | ||
832 | static void start_accept(struct at_state_t *at_state) | |
833 | { | |
834 | struct cardstate *cs = at_state->cs; | |
088ec0cc TS |
835 | struct bc_state *bcs = at_state->bcs; |
836 | int i; | |
14fa73a7 | 837 | |
088ec0cc TS |
838 | for (i = 0; i < AT_NUM; ++i) { |
839 | kfree(bcs->commands[i]); | |
840 | bcs->commands[i] = NULL; | |
841 | } | |
14fa73a7 | 842 | |
088ec0cc TS |
843 | bcs->commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC); |
844 | bcs->commands[AT_ISO] = kmalloc(9, GFP_ATOMIC); | |
845 | if (!bcs->commands[AT_PROTO] || !bcs->commands[AT_ISO]) { | |
846 | dev_err(at_state->cs->dev, "out of memory\n"); | |
9d4bee2b | 847 | /* error reset */ |
14fa73a7 | 848 | at_state->pending_commands |= PC_HUP; |
1528b18f | 849 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 850 | cs->commands_pending = 1; |
088ec0cc | 851 | return; |
14fa73a7 | 852 | } |
088ec0cc TS |
853 | |
854 | snprintf(bcs->commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2); | |
855 | snprintf(bcs->commands[AT_ISO], 9, "^SISO=%u\r", bcs->channel + 1); | |
856 | ||
857 | at_state->pending_commands |= PC_ACCEPT; | |
1528b18f | 858 | gig_dbg(DEBUG_EVENT, "Scheduling PC_ACCEPT"); |
088ec0cc | 859 | cs->commands_pending = 1; |
14fa73a7 HL |
860 | } |
861 | ||
862 | static void do_start(struct cardstate *cs) | |
863 | { | |
864 | gigaset_free_channels(cs); | |
865 | ||
9d4bee2b | 866 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
867 | schedule_init(cs, MS_INIT); |
868 | ||
69049cc8 | 869 | cs->isdn_up = 1; |
088ec0cc | 870 | gigaset_isdn_start(cs); |
14fa73a7 HL |
871 | |
872 | cs->waiting = 0; | |
873 | wake_up(&cs->waitqueue); | |
874 | } | |
875 | ||
876 | static void finish_shutdown(struct cardstate *cs) | |
877 | { | |
9d4bee2b TS |
878 | if (cs->mstate != MS_LOCKED) { |
879 | cs->mstate = MS_UNINITIALIZED; | |
880 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
881 | } |
882 | ||
69049cc8 TS |
883 | /* Tell the LL that the device is not available .. */ |
884 | if (cs->isdn_up) { | |
885 | cs->isdn_up = 0; | |
088ec0cc | 886 | gigaset_isdn_stop(cs); |
69049cc8 TS |
887 | } |
888 | ||
14fa73a7 HL |
889 | /* The rest is done by cleanup_cs () in user mode. */ |
890 | ||
891 | cs->cmd_result = -ENODEV; | |
892 | cs->waiting = 0; | |
2869b23e | 893 | wake_up(&cs->waitqueue); |
14fa73a7 HL |
894 | } |
895 | ||
896 | static void do_shutdown(struct cardstate *cs) | |
897 | { | |
898 | gigaset_block_channels(cs); | |
899 | ||
9d4bee2b TS |
900 | if (cs->mstate == MS_READY) { |
901 | cs->mstate = MS_SHUTDOWN; | |
14fa73a7 | 902 | cs->at_state.pending_commands |= PC_SHUTDOWN; |
1528b18f | 903 | gig_dbg(DEBUG_EVENT, "Scheduling PC_SHUTDOWN"); |
9d4bee2b | 904 | cs->commands_pending = 1; |
14fa73a7 HL |
905 | } else |
906 | finish_shutdown(cs); | |
907 | } | |
908 | ||
909 | static void do_stop(struct cardstate *cs) | |
910 | { | |
69049cc8 TS |
911 | unsigned long flags; |
912 | ||
913 | spin_lock_irqsave(&cs->lock, flags); | |
914 | cs->connected = 0; | |
915 | spin_unlock_irqrestore(&cs->lock, flags); | |
916 | ||
14fa73a7 HL |
917 | do_shutdown(cs); |
918 | } | |
919 | ||
920 | /* Entering cid mode or getting a cid failed: | |
921 | * try to initialize the device and try again. | |
922 | * | |
923 | * channel >= 0: getting cid for the channel failed | |
924 | * channel < 0: entering cid mode failed | |
925 | * | |
926 | * returns 0 on failure | |
927 | */ | |
928 | static int reinit_and_retry(struct cardstate *cs, int channel) | |
929 | { | |
930 | int i; | |
931 | ||
932 | if (--cs->retry_count <= 0) | |
933 | return 0; | |
934 | ||
935 | for (i = 0; i < cs->channels; ++i) | |
936 | if (cs->bcs[i].at_state.cid > 0) | |
937 | return 0; | |
938 | ||
939 | if (channel < 0) | |
784d5858 | 940 | dev_warn(cs->dev, |
475be4d8 | 941 | "Could not enter cid mode. Reinit device and try again.\n"); |
14fa73a7 | 942 | else { |
784d5858 | 943 | dev_warn(cs->dev, |
475be4d8 | 944 | "Could not get a call id. Reinit device and try again.\n"); |
14fa73a7 HL |
945 | cs->bcs[channel].at_state.pending_commands |= PC_CID; |
946 | } | |
947 | schedule_init(cs, MS_INIT); | |
948 | return 1; | |
949 | } | |
950 | ||
951 | static int at_state_invalid(struct cardstate *cs, | |
784d5858 | 952 | struct at_state_t *test_ptr) |
14fa73a7 HL |
953 | { |
954 | unsigned long flags; | |
955 | unsigned channel; | |
956 | struct at_state_t *at_state; | |
957 | int retval = 0; | |
958 | ||
959 | spin_lock_irqsave(&cs->lock, flags); | |
960 | ||
961 | if (test_ptr == &cs->at_state) | |
962 | goto exit; | |
963 | ||
964 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
965 | if (at_state == test_ptr) | |
966 | goto exit; | |
967 | ||
968 | for (channel = 0; channel < cs->channels; ++channel) | |
969 | if (&cs->bcs[channel].at_state == test_ptr) | |
970 | goto exit; | |
971 | ||
972 | retval = 1; | |
973 | exit: | |
974 | spin_unlock_irqrestore(&cs->lock, flags); | |
975 | return retval; | |
976 | } | |
977 | ||
978 | static void handle_icall(struct cardstate *cs, struct bc_state *bcs, | |
979 | struct at_state_t **p_at_state) | |
980 | { | |
981 | int retval; | |
982 | struct at_state_t *at_state = *p_at_state; | |
983 | ||
984 | retval = gigaset_isdn_icall(at_state); | |
985 | switch (retval) { | |
986 | case ICALL_ACCEPT: | |
987 | break; | |
988 | default: | |
784d5858 | 989 | dev_err(cs->dev, "internal error: disposition=%d\n", retval); |
14fa73a7 HL |
990 | /* --v-- fall through --v-- */ |
991 | case ICALL_IGNORE: | |
992 | case ICALL_REJECT: | |
993 | /* hang up actively | |
994 | * Device doc says that would reject the call. | |
995 | * In fact it doesn't. | |
996 | */ | |
997 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 998 | cs->commands_pending = 1; |
14fa73a7 HL |
999 | break; |
1000 | } | |
1001 | } | |
1002 | ||
1003 | static int do_lock(struct cardstate *cs) | |
1004 | { | |
1005 | int mode; | |
1006 | int i; | |
1007 | ||
9d4bee2b | 1008 | switch (cs->mstate) { |
14fa73a7 HL |
1009 | case MS_UNINITIALIZED: |
1010 | case MS_READY: | |
1011 | if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) || | |
1012 | cs->at_state.pending_commands) | |
1013 | return -EBUSY; | |
1014 | ||
1015 | for (i = 0; i < cs->channels; ++i) | |
1016 | if (cs->bcs[i].at_state.pending_commands) | |
1017 | return -EBUSY; | |
1018 | ||
1019 | if (!gigaset_get_channels(cs)) | |
1020 | return -EBUSY; | |
1021 | ||
1022 | break; | |
1023 | case MS_LOCKED: | |
14fa73a7 HL |
1024 | break; |
1025 | default: | |
1026 | return -EBUSY; | |
1027 | } | |
1028 | ||
9d4bee2b TS |
1029 | mode = cs->mode; |
1030 | cs->mstate = MS_LOCKED; | |
1031 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
1032 | |
1033 | return mode; | |
1034 | } | |
1035 | ||
1036 | static int do_unlock(struct cardstate *cs) | |
1037 | { | |
9d4bee2b | 1038 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
1039 | return -EINVAL; |
1040 | ||
9d4bee2b TS |
1041 | cs->mstate = MS_UNINITIALIZED; |
1042 | cs->mode = M_UNKNOWN; | |
14fa73a7 | 1043 | gigaset_free_channels(cs); |
69049cc8 | 1044 | if (cs->connected) |
14fa73a7 HL |
1045 | schedule_init(cs, MS_INIT); |
1046 | ||
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static void do_action(int action, struct cardstate *cs, | |
1051 | struct bc_state *bcs, | |
1052 | struct at_state_t **p_at_state, char **pp_command, | |
1053 | int *p_genresp, int *p_resp_code, | |
1054 | struct event_t *ev) | |
1055 | { | |
1056 | struct at_state_t *at_state = *p_at_state; | |
1057 | struct at_state_t *at_state2; | |
1058 | unsigned long flags; | |
1059 | ||
1060 | int channel; | |
1061 | ||
1062 | unsigned char *s, *e; | |
1063 | int i; | |
1064 | unsigned long val; | |
1065 | ||
1066 | switch (action) { | |
1067 | case ACT_NOTHING: | |
1068 | break; | |
1069 | case ACT_TIMEOUT: | |
1070 | at_state->waiting = 1; | |
1071 | break; | |
1072 | case ACT_INIT: | |
14fa73a7 HL |
1073 | cs->at_state.pending_commands &= ~PC_INIT; |
1074 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1075 | cs->mode = M_UNIMODEM; |
69049cc8 TS |
1076 | spin_lock_irqsave(&cs->lock, flags); |
1077 | if (!cs->cidmode) { | |
1078 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 1079 | gigaset_free_channels(cs); |
9d4bee2b | 1080 | cs->mstate = MS_READY; |
14fa73a7 HL |
1081 | break; |
1082 | } | |
69049cc8 | 1083 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1084 | cs->at_state.pending_commands |= PC_CIDMODE; |
1528b18f | 1085 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1086 | cs->commands_pending = 1; |
14fa73a7 HL |
1087 | break; |
1088 | case ACT_FAILINIT: | |
784d5858 | 1089 | dev_warn(cs->dev, "Could not initialize the device.\n"); |
14fa73a7 HL |
1090 | cs->dle = 0; |
1091 | init_failed(cs, M_UNKNOWN); | |
1092 | cs->cur_at_seq = SEQ_NONE; | |
1093 | break; | |
1094 | case ACT_CONFIGMODE: | |
1095 | init_failed(cs, M_CONFIG); | |
1096 | cs->cur_at_seq = SEQ_NONE; | |
1097 | break; | |
1098 | case ACT_SETDLE1: | |
1099 | cs->dle = 1; | |
1100 | /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */ | |
1101 | cs->inbuf[0].inputstate &= | |
1102 | ~(INS_command | INS_DLE_command); | |
1103 | break; | |
1104 | case ACT_SETDLE0: | |
1105 | cs->dle = 0; | |
1106 | cs->inbuf[0].inputstate = | |
1107 | (cs->inbuf[0].inputstate & ~INS_DLE_command) | |
1108 | | INS_command; | |
1109 | break; | |
1110 | case ACT_CMODESET: | |
9d4bee2b | 1111 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 | 1112 | gigaset_free_channels(cs); |
9d4bee2b | 1113 | cs->mstate = MS_READY; |
14fa73a7 | 1114 | } |
9d4bee2b | 1115 | cs->mode = M_CID; |
14fa73a7 HL |
1116 | cs->cur_at_seq = SEQ_NONE; |
1117 | break; | |
1118 | case ACT_UMODESET: | |
9d4bee2b | 1119 | cs->mode = M_UNIMODEM; |
14fa73a7 HL |
1120 | cs->cur_at_seq = SEQ_NONE; |
1121 | break; | |
1122 | case ACT_FAILCMODE: | |
1123 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1124 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1125 | init_failed(cs, M_UNKNOWN); |
1126 | break; | |
1127 | } | |
1128 | if (!reinit_and_retry(cs, -1)) | |
1129 | schedule_init(cs, MS_RECOVER); | |
1130 | break; | |
1131 | case ACT_FAILUMODE: | |
1132 | cs->cur_at_seq = SEQ_NONE; | |
1133 | schedule_init(cs, MS_RECOVER); | |
1134 | break; | |
1135 | case ACT_HUPMODEM: | |
1136 | /* send "+++" (hangup in unimodem mode) */ | |
e3628dd1 TS |
1137 | if (cs->connected) { |
1138 | struct cmdbuf_t *cb; | |
1139 | ||
1140 | cb = kmalloc(sizeof(struct cmdbuf_t) + 3, GFP_ATOMIC); | |
1141 | if (!cb) { | |
1142 | dev_err(cs->dev, "%s: out of memory\n", | |
1143 | __func__); | |
1144 | return; | |
1145 | } | |
1146 | memcpy(cb->buf, "+++", 3); | |
1147 | cb->len = 3; | |
1148 | cb->offset = 0; | |
1149 | cb->next = NULL; | |
1150 | cb->wake_tasklet = NULL; | |
1151 | cs->ops->write_cmd(cs, cb); | |
1152 | } | |
14fa73a7 HL |
1153 | break; |
1154 | case ACT_RING: | |
1155 | /* get fresh AT state structure for new CID */ | |
1156 | at_state2 = get_free_channel(cs, ev->parameter); | |
1157 | if (!at_state2) { | |
784d5858 | 1158 | dev_warn(cs->dev, |
475be4d8 | 1159 | "RING ignored: could not allocate channel structure\n"); |
14fa73a7 HL |
1160 | break; |
1161 | } | |
1162 | ||
1163 | /* initialize AT state structure | |
1164 | * note that bcs may be NULL if no B channel is free | |
1165 | */ | |
1166 | at_state2->ConState = 700; | |
3a0a3a6b TS |
1167 | for (i = 0; i < STR_NUM; ++i) { |
1168 | kfree(at_state2->str_var[i]); | |
1169 | at_state2->str_var[i] = NULL; | |
1170 | } | |
14fa73a7 HL |
1171 | at_state2->int_var[VAR_ZCTP] = -1; |
1172 | ||
1173 | spin_lock_irqsave(&cs->lock, flags); | |
1174 | at_state2->timer_expires = RING_TIMEOUT; | |
1175 | at_state2->timer_active = 1; | |
1176 | spin_unlock_irqrestore(&cs->lock, flags); | |
1177 | break; | |
1178 | case ACT_ICALL: | |
1179 | handle_icall(cs, bcs, p_at_state); | |
14fa73a7 HL |
1180 | break; |
1181 | case ACT_FAILSDOWN: | |
784d5858 | 1182 | dev_warn(cs->dev, "Could not shut down the device.\n"); |
14fa73a7 HL |
1183 | /* fall through */ |
1184 | case ACT_FAKESDOWN: | |
1185 | case ACT_SDOWN: | |
1186 | cs->cur_at_seq = SEQ_NONE; | |
1187 | finish_shutdown(cs); | |
1188 | break; | |
1189 | case ACT_CONNECT: | |
1190 | if (cs->onechannel) { | |
1191 | at_state->pending_commands |= PC_DLE1; | |
9d4bee2b | 1192 | cs->commands_pending = 1; |
14fa73a7 HL |
1193 | break; |
1194 | } | |
1195 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1196 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1197 | cs->ops->init_bchannel(bcs); |
1198 | break; | |
1199 | case ACT_DLE1: | |
1200 | cs->cur_at_seq = SEQ_NONE; | |
1201 | bcs = cs->bcs + cs->curchannel; | |
1202 | ||
1203 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1204 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1205 | cs->ops->init_bchannel(bcs); |
1206 | break; | |
1207 | case ACT_FAKEHUP: | |
1208 | at_state->int_var[VAR_ZSAU] = ZSAU_NULL; | |
1209 | /* fall through */ | |
1210 | case ACT_DISCONNECT: | |
1211 | cs->cur_at_seq = SEQ_NONE; | |
1212 | at_state->cid = -1; | |
1213 | if (bcs && cs->onechannel && cs->dle) { | |
1214 | /* Check for other open channels not needed: | |
1215 | * DLE only used for M10x with one B channel. | |
1216 | */ | |
1217 | at_state->pending_commands |= PC_DLE0; | |
9d4bee2b | 1218 | cs->commands_pending = 1; |
698e3ed9 | 1219 | } else |
14fa73a7 | 1220 | disconnect(p_at_state); |
14fa73a7 HL |
1221 | break; |
1222 | case ACT_FAKEDLE0: | |
1223 | at_state->int_var[VAR_ZDLE] = 0; | |
1224 | cs->dle = 0; | |
1225 | /* fall through */ | |
1226 | case ACT_DLE0: | |
1227 | cs->cur_at_seq = SEQ_NONE; | |
1228 | at_state2 = &cs->bcs[cs->curchannel].at_state; | |
1229 | disconnect(&at_state2); | |
1230 | break; | |
1231 | case ACT_ABORTHUP: | |
1232 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 | 1233 | dev_warn(cs->dev, "Could not hang up.\n"); |
14fa73a7 HL |
1234 | at_state->cid = -1; |
1235 | if (bcs && cs->onechannel) | |
1236 | at_state->pending_commands |= PC_DLE0; | |
698e3ed9 | 1237 | else |
14fa73a7 | 1238 | disconnect(p_at_state); |
14fa73a7 HL |
1239 | schedule_init(cs, MS_RECOVER); |
1240 | break; | |
1241 | case ACT_FAILDLE0: | |
1242 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 | 1243 | dev_warn(cs->dev, "Could not leave DLE mode.\n"); |
14fa73a7 HL |
1244 | at_state2 = &cs->bcs[cs->curchannel].at_state; |
1245 | disconnect(&at_state2); | |
1246 | schedule_init(cs, MS_RECOVER); | |
1247 | break; | |
1248 | case ACT_FAILDLE1: | |
1249 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 TS |
1250 | dev_warn(cs->dev, |
1251 | "Could not enter DLE mode. Trying to hang up.\n"); | |
14fa73a7 HL |
1252 | channel = cs->curchannel; |
1253 | cs->bcs[channel].at_state.pending_commands |= PC_HUP; | |
9d4bee2b | 1254 | cs->commands_pending = 1; |
14fa73a7 HL |
1255 | break; |
1256 | ||
1257 | case ACT_CID: /* got cid; start dialing */ | |
1258 | cs->cur_at_seq = SEQ_NONE; | |
1259 | channel = cs->curchannel; | |
1260 | if (ev->parameter > 0 && ev->parameter <= 65535) { | |
1261 | cs->bcs[channel].at_state.cid = ev->parameter; | |
1262 | cs->bcs[channel].at_state.pending_commands |= | |
1263 | PC_DIAL; | |
9d4bee2b | 1264 | cs->commands_pending = 1; |
14fa73a7 HL |
1265 | break; |
1266 | } | |
1267 | /* fall through */ | |
1268 | case ACT_FAILCID: | |
1269 | cs->cur_at_seq = SEQ_NONE; | |
1270 | channel = cs->curchannel; | |
1271 | if (!reinit_and_retry(cs, channel)) { | |
784d5858 TS |
1272 | dev_warn(cs->dev, |
1273 | "Could not get a call ID. Cannot dial.\n"); | |
14fa73a7 HL |
1274 | at_state2 = &cs->bcs[channel].at_state; |
1275 | disconnect(&at_state2); | |
1276 | } | |
1277 | break; | |
1278 | case ACT_ABORTCID: | |
1279 | cs->cur_at_seq = SEQ_NONE; | |
1280 | at_state2 = &cs->bcs[cs->curchannel].at_state; | |
1281 | disconnect(&at_state2); | |
1282 | break; | |
1283 | ||
1284 | case ACT_DIALING: | |
1285 | case ACT_ACCEPTED: | |
1286 | cs->cur_at_seq = SEQ_NONE; | |
1287 | break; | |
1288 | ||
c35a87ff | 1289 | case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL procssng */ |
14fa73a7 | 1290 | disconnect(p_at_state); |
14fa73a7 HL |
1291 | break; |
1292 | ||
1293 | case ACT_ABORTDIAL: /* error/timeout during dial preparation */ | |
1294 | cs->cur_at_seq = SEQ_NONE; | |
1295 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1296 | cs->commands_pending = 1; |
14fa73a7 HL |
1297 | break; |
1298 | ||
1299 | case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */ | |
1300 | case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */ | |
1301 | case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */ | |
1302 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1303 | cs->commands_pending = 1; |
14fa73a7 | 1304 | break; |
917f5085 | 1305 | case ACT_GETSTRING: /* warning: RING, ZDLE, ... |
784d5858 | 1306 | are not handled properly anymore */ |
14fa73a7 HL |
1307 | at_state->getstring = 1; |
1308 | break; | |
1309 | case ACT_SETVER: | |
1310 | if (!ev->ptr) { | |
1311 | *p_genresp = 1; | |
1312 | *p_resp_code = RSP_ERROR; | |
1313 | break; | |
1314 | } | |
1315 | s = ev->ptr; | |
1316 | ||
1317 | if (!strcmp(s, "OK")) { | |
e055d03d | 1318 | /* OK without version string: assume old response */ |
14fa73a7 | 1319 | *p_genresp = 1; |
e055d03d | 1320 | *p_resp_code = RSP_NONE; |
14fa73a7 HL |
1321 | break; |
1322 | } | |
1323 | ||
1324 | for (i = 0; i < 4; ++i) { | |
1325 | val = simple_strtoul(s, (char **) &e, 10); | |
1326 | if (val > INT_MAX || e == s) | |
1327 | break; | |
1328 | if (i == 3) { | |
1329 | if (*e) | |
1330 | break; | |
1331 | } else if (*e != '.') | |
1332 | break; | |
1333 | else | |
1334 | s = e + 1; | |
1335 | cs->fwver[i] = val; | |
1336 | } | |
1337 | if (i != 4) { | |
1338 | *p_genresp = 1; | |
1339 | *p_resp_code = RSP_ERROR; | |
1340 | break; | |
1341 | } | |
1342 | /*at_state->getstring = 1;*/ | |
1343 | cs->gotfwver = 0; | |
1344 | break; | |
1345 | case ACT_GOTVER: | |
1346 | if (cs->gotfwver == 0) { | |
1347 | cs->gotfwver = 1; | |
1528b18f | 1348 | gig_dbg(DEBUG_EVENT, |
784d5858 TS |
1349 | "firmware version %02d.%03d.%02d.%02d", |
1350 | cs->fwver[0], cs->fwver[1], | |
1351 | cs->fwver[2], cs->fwver[3]); | |
14fa73a7 HL |
1352 | break; |
1353 | } | |
1354 | /* fall through */ | |
1355 | case ACT_FAILVER: | |
1356 | cs->gotfwver = -1; | |
784d5858 | 1357 | dev_err(cs->dev, "could not read firmware version.\n"); |
14fa73a7 | 1358 | break; |
14fa73a7 | 1359 | case ACT_ERROR: |
05eae94f TS |
1360 | gig_dbg(DEBUG_ANY, "%s: ERROR response in ConState %d", |
1361 | __func__, at_state->ConState); | |
1362 | cs->cur_at_seq = SEQ_NONE; | |
14fa73a7 | 1363 | break; |
14fa73a7 | 1364 | case ACT_DEBUG: |
784d5858 | 1365 | gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d", |
14fa73a7 HL |
1366 | __func__, ev->type, at_state->ConState); |
1367 | break; | |
1368 | case ACT_WARN: | |
784d5858 TS |
1369 | dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n", |
1370 | __func__, ev->type, at_state->ConState); | |
14fa73a7 HL |
1371 | break; |
1372 | case ACT_ZCAU: | |
784d5858 TS |
1373 | dev_warn(cs->dev, "cause code %04x in connection state %d.\n", |
1374 | ev->parameter, at_state->ConState); | |
14fa73a7 HL |
1375 | break; |
1376 | ||
475be4d8 | 1377 | /* events from the LL */ |
14fa73a7 HL |
1378 | case ACT_DIAL: |
1379 | start_dial(at_state, ev->ptr, ev->parameter); | |
1380 | break; | |
1381 | case ACT_ACCEPT: | |
1382 | start_accept(at_state); | |
1383 | break; | |
14fa73a7 HL |
1384 | case ACT_HUP: |
1385 | at_state->pending_commands |= PC_HUP; | |
1528b18f | 1386 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 1387 | cs->commands_pending = 1; |
14fa73a7 HL |
1388 | break; |
1389 | ||
475be4d8 | 1390 | /* hotplug events */ |
14fa73a7 HL |
1391 | case ACT_STOP: |
1392 | do_stop(cs); | |
1393 | break; | |
1394 | case ACT_START: | |
1395 | do_start(cs); | |
1396 | break; | |
1397 | ||
475be4d8 | 1398 | /* events from the interface */ |
14fa73a7 HL |
1399 | case ACT_IF_LOCK: |
1400 | cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs); | |
1401 | cs->waiting = 0; | |
1402 | wake_up(&cs->waitqueue); | |
1403 | break; | |
1404 | case ACT_IF_VER: | |
1405 | if (ev->parameter != 0) | |
1406 | cs->cmd_result = -EINVAL; | |
1407 | else if (cs->gotfwver != 1) { | |
1408 | cs->cmd_result = -ENOENT; | |
1409 | } else { | |
1410 | memcpy(ev->arg, cs->fwver, sizeof cs->fwver); | |
1411 | cs->cmd_result = 0; | |
1412 | } | |
1413 | cs->waiting = 0; | |
1414 | wake_up(&cs->waitqueue); | |
1415 | break; | |
1416 | ||
475be4d8 | 1417 | /* events from the proc file system */ |
14fa73a7 | 1418 | case ACT_PROC_CIDMODE: |
69049cc8 TS |
1419 | spin_lock_irqsave(&cs->lock, flags); |
1420 | if (ev->parameter != cs->cidmode) { | |
1421 | cs->cidmode = ev->parameter; | |
14fa73a7 HL |
1422 | if (ev->parameter) { |
1423 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1424 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
14fa73a7 HL |
1425 | } else { |
1426 | cs->at_state.pending_commands |= PC_UMMODE; | |
1528b18f | 1427 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
14fa73a7 | 1428 | } |
9d4bee2b | 1429 | cs->commands_pending = 1; |
14fa73a7 | 1430 | } |
69049cc8 | 1431 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1432 | cs->waiting = 0; |
1433 | wake_up(&cs->waitqueue); | |
1434 | break; | |
1435 | ||
475be4d8 | 1436 | /* events from the hardware drivers */ |
14fa73a7 HL |
1437 | case ACT_NOTIFY_BC_DOWN: |
1438 | bchannel_down(bcs); | |
1439 | break; | |
1440 | case ACT_NOTIFY_BC_UP: | |
1441 | bchannel_up(bcs); | |
1442 | break; | |
1443 | case ACT_SHUTDOWN: | |
1444 | do_shutdown(cs); | |
1445 | break; | |
1446 | ||
1447 | ||
1448 | default: | |
1449 | if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) { | |
1450 | *pp_command = at_state->bcs->commands[action - ACT_CMD]; | |
1451 | if (!*pp_command) { | |
1452 | *p_genresp = 1; | |
1453 | *p_resp_code = RSP_NULL; | |
1454 | } | |
1455 | } else | |
784d5858 | 1456 | dev_err(cs->dev, "%s: action==%d!\n", __func__, action); |
14fa73a7 HL |
1457 | } |
1458 | } | |
1459 | ||
1460 | /* State machine to do the calling and hangup procedure */ | |
1461 | static void process_event(struct cardstate *cs, struct event_t *ev) | |
1462 | { | |
1463 | struct bc_state *bcs; | |
1464 | char *p_command = NULL; | |
1465 | struct reply_t *rep; | |
1466 | int rcode; | |
1467 | int genresp = 0; | |
1468 | int resp_code = RSP_ERROR; | |
1469 | int sendcid; | |
1470 | struct at_state_t *at_state; | |
1471 | int index; | |
1472 | int curact; | |
1473 | unsigned long flags; | |
1474 | ||
14fa73a7 HL |
1475 | if (ev->cid >= 0) { |
1476 | at_state = at_state_from_cid(cs, ev->cid); | |
1477 | if (!at_state) { | |
1528b18f TS |
1478 | gig_dbg(DEBUG_EVENT, "event %d for invalid cid %d", |
1479 | ev->type, ev->cid); | |
14fa73a7 | 1480 | gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID, |
784d5858 | 1481 | NULL, 0, NULL); |
14fa73a7 HL |
1482 | return; |
1483 | } | |
1484 | } else { | |
1485 | at_state = ev->at_state; | |
1486 | if (at_state_invalid(cs, at_state)) { | |
1528b18f | 1487 | gig_dbg(DEBUG_EVENT, "event for invalid at_state %p", |
784d5858 | 1488 | at_state); |
14fa73a7 HL |
1489 | return; |
1490 | } | |
1491 | } | |
1492 | ||
1528b18f | 1493 | gig_dbg(DEBUG_EVENT, "connection state %d, event %d", |
784d5858 | 1494 | at_state->ConState, ev->type); |
14fa73a7 HL |
1495 | |
1496 | bcs = at_state->bcs; | |
1497 | sendcid = at_state->cid; | |
1498 | ||
1499 | /* Setting the pointer to the dial array */ | |
1500 | rep = at_state->replystruct; | |
14fa73a7 | 1501 | |
69049cc8 | 1502 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1503 | if (ev->type == EV_TIMEOUT) { |
69049cc8 | 1504 | if (ev->parameter != at_state->timer_index |
14fa73a7 HL |
1505 | || !at_state->timer_active) { |
1506 | ev->type = RSP_NONE; /* old timeout */ | |
1528b18f | 1507 | gig_dbg(DEBUG_EVENT, "old timeout"); |
14fa73a7 | 1508 | } else if (!at_state->waiting) |
1528b18f | 1509 | gig_dbg(DEBUG_EVENT, "timeout occurred"); |
14fa73a7 | 1510 | else |
1528b18f | 1511 | gig_dbg(DEBUG_EVENT, "stopped waiting"); |
14fa73a7 | 1512 | } |
69049cc8 | 1513 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1514 | |
917f5085 TS |
1515 | /* if the response belongs to a variable in at_state->int_var[VAR_XXXX] |
1516 | or at_state->str_var[STR_XXXX], set it */ | |
14fa73a7 HL |
1517 | if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) { |
1518 | index = ev->type - RSP_VAR; | |
1519 | at_state->int_var[index] = ev->parameter; | |
1520 | } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) { | |
1521 | index = ev->type - RSP_STR; | |
1522 | kfree(at_state->str_var[index]); | |
1523 | at_state->str_var[index] = ev->ptr; | |
917f5085 TS |
1524 | ev->ptr = NULL; /* prevent process_events() from |
1525 | deallocating ptr */ | |
14fa73a7 HL |
1526 | } |
1527 | ||
1528 | if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING) | |
1529 | at_state->getstring = 0; | |
1530 | ||
917f5085 TS |
1531 | /* Search row in dial array which matches modem response and current |
1532 | constate */ | |
14fa73a7 HL |
1533 | for (;; rep++) { |
1534 | rcode = rep->resp_code; | |
14fa73a7 HL |
1535 | if (rcode == RSP_LAST) { |
1536 | /* found nothing...*/ | |
784d5858 | 1537 | dev_warn(cs->dev, "%s: rcode=RSP_LAST: " |
475be4d8 | 1538 | "resp_code %d in ConState %d!\n", |
784d5858 | 1539 | __func__, ev->type, at_state->ConState); |
14fa73a7 HL |
1540 | return; |
1541 | } | |
1542 | if ((rcode == RSP_ANY || rcode == ev->type) | |
475be4d8 JP |
1543 | && ((int) at_state->ConState >= rep->min_ConState) |
1544 | && (rep->max_ConState < 0 | |
1545 | || (int) at_state->ConState <= rep->max_ConState) | |
1546 | && (rep->parameter < 0 || rep->parameter == ev->parameter)) | |
14fa73a7 HL |
1547 | break; |
1548 | } | |
1549 | ||
1550 | p_command = rep->command; | |
1551 | ||
1552 | at_state->waiting = 0; | |
1553 | for (curact = 0; curact < MAXACT; ++curact) { | |
1554 | /* The row tells us what we should do .. | |
1555 | */ | |
c35a87ff TS |
1556 | do_action(rep->action[curact], cs, bcs, &at_state, &p_command, |
1557 | &genresp, &resp_code, ev); | |
14fa73a7 HL |
1558 | if (!at_state) |
1559 | break; /* may be freed after disconnect */ | |
1560 | } | |
1561 | ||
1562 | if (at_state) { | |
1563 | /* Jump to the next con-state regarding the array */ | |
1564 | if (rep->new_ConState >= 0) | |
1565 | at_state->ConState = rep->new_ConState; | |
1566 | ||
1567 | if (genresp) { | |
1568 | spin_lock_irqsave(&cs->lock, flags); | |
c35a87ff TS |
1569 | at_state->timer_expires = 0; |
1570 | at_state->timer_active = 0; | |
14fa73a7 | 1571 | spin_unlock_irqrestore(&cs->lock, flags); |
c35a87ff TS |
1572 | gigaset_add_event(cs, at_state, resp_code, |
1573 | NULL, 0, NULL); | |
14fa73a7 HL |
1574 | } else { |
1575 | /* Send command to modem if not NULL... */ | |
c35a87ff | 1576 | if (p_command) { |
69049cc8 | 1577 | if (cs->connected) |
14fa73a7 | 1578 | send_command(cs, p_command, |
784d5858 TS |
1579 | sendcid, cs->dle, |
1580 | GFP_ATOMIC); | |
14fa73a7 HL |
1581 | else |
1582 | gigaset_add_event(cs, at_state, | |
784d5858 TS |
1583 | RSP_NODEV, |
1584 | NULL, 0, NULL); | |
14fa73a7 HL |
1585 | } |
1586 | ||
1587 | spin_lock_irqsave(&cs->lock, flags); | |
1588 | if (!rep->timeout) { | |
1589 | at_state->timer_expires = 0; | |
1590 | at_state->timer_active = 0; | |
1591 | } else if (rep->timeout > 0) { /* new timeout */ | |
1592 | at_state->timer_expires = rep->timeout * 10; | |
1593 | at_state->timer_active = 1; | |
69049cc8 | 1594 | ++at_state->timer_index; |
14fa73a7 HL |
1595 | } |
1596 | spin_unlock_irqrestore(&cs->lock, flags); | |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | static void schedule_sequence(struct cardstate *cs, | |
1602 | struct at_state_t *at_state, int sequence) | |
1603 | { | |
1604 | cs->cur_at_seq = sequence; | |
1605 | gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL); | |
1606 | } | |
1607 | ||
1608 | static void process_command_flags(struct cardstate *cs) | |
1609 | { | |
1610 | struct at_state_t *at_state = NULL; | |
1611 | struct bc_state *bcs; | |
1612 | int i; | |
1613 | int sequence; | |
69049cc8 | 1614 | unsigned long flags; |
14fa73a7 | 1615 | |
9d4bee2b | 1616 | cs->commands_pending = 0; |
14fa73a7 HL |
1617 | |
1618 | if (cs->cur_at_seq) { | |
1528b18f | 1619 | gig_dbg(DEBUG_EVENT, "not searching scheduled commands: busy"); |
14fa73a7 HL |
1620 | return; |
1621 | } | |
1622 | ||
1528b18f | 1623 | gig_dbg(DEBUG_EVENT, "searching scheduled commands"); |
14fa73a7 HL |
1624 | |
1625 | sequence = SEQ_NONE; | |
1626 | ||
1627 | /* clear pending_commands and hangup channels on shutdown */ | |
1628 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1629 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1630 | for (i = 0; i < cs->channels; ++i) { | |
1631 | bcs = cs->bcs + i; | |
1632 | at_state = &bcs->at_state; | |
1633 | at_state->pending_commands &= | |
1634 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1635 | if (at_state->cid > 0) | |
1636 | at_state->pending_commands |= PC_HUP; | |
1637 | if (at_state->pending_commands & PC_CID) { | |
1638 | at_state->pending_commands |= PC_NOCID; | |
1639 | at_state->pending_commands &= ~PC_CID; | |
1640 | } | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | /* clear pending_commands and hangup channels on reset */ | |
1645 | if (cs->at_state.pending_commands & PC_INIT) { | |
1646 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1647 | for (i = 0; i < cs->channels; ++i) { | |
1648 | bcs = cs->bcs + i; | |
1649 | at_state = &bcs->at_state; | |
1650 | at_state->pending_commands &= | |
1651 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1652 | if (at_state->cid > 0) | |
1653 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1654 | if (cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1655 | if (at_state->pending_commands & PC_CID) { |
1656 | at_state->pending_commands |= PC_NOCID; | |
1657 | at_state->pending_commands &= ~PC_CID; | |
1658 | } | |
1659 | } | |
1660 | } | |
1661 | } | |
1662 | ||
c35a87ff TS |
1663 | /* only switch back to unimodem mode if no commands are pending and |
1664 | * no channels are up */ | |
69049cc8 | 1665 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1666 | if (cs->at_state.pending_commands == PC_UMMODE |
69049cc8 | 1667 | && !cs->cidmode |
14fa73a7 | 1668 | && list_empty(&cs->temp_at_states) |
9d4bee2b | 1669 | && cs->mode == M_CID) { |
14fa73a7 HL |
1670 | sequence = SEQ_UMMODE; |
1671 | at_state = &cs->at_state; | |
1672 | for (i = 0; i < cs->channels; ++i) { | |
1673 | bcs = cs->bcs + i; | |
1674 | if (bcs->at_state.pending_commands || | |
1675 | bcs->at_state.cid > 0) { | |
1676 | sequence = SEQ_NONE; | |
1677 | break; | |
1678 | } | |
1679 | } | |
1680 | } | |
69049cc8 | 1681 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1682 | cs->at_state.pending_commands &= ~PC_UMMODE; |
1683 | if (sequence != SEQ_NONE) { | |
1684 | schedule_sequence(cs, at_state, sequence); | |
1685 | return; | |
1686 | } | |
1687 | ||
1688 | for (i = 0; i < cs->channels; ++i) { | |
1689 | bcs = cs->bcs + i; | |
1690 | if (bcs->at_state.pending_commands & PC_HUP) { | |
1691 | bcs->at_state.pending_commands &= ~PC_HUP; | |
1692 | if (bcs->at_state.pending_commands & PC_CID) { | |
1693 | /* not yet dialing: PC_NOCID is sufficient */ | |
1694 | bcs->at_state.pending_commands |= PC_NOCID; | |
1695 | bcs->at_state.pending_commands &= ~PC_CID; | |
1696 | } else { | |
1697 | schedule_sequence(cs, &bcs->at_state, SEQ_HUP); | |
1698 | return; | |
1699 | } | |
1700 | } | |
1701 | if (bcs->at_state.pending_commands & PC_NOCID) { | |
1702 | bcs->at_state.pending_commands &= ~PC_NOCID; | |
1703 | cs->curchannel = bcs->channel; | |
1704 | schedule_sequence(cs, &cs->at_state, SEQ_NOCID); | |
1705 | return; | |
1706 | } else if (bcs->at_state.pending_commands & PC_DLE0) { | |
1707 | bcs->at_state.pending_commands &= ~PC_DLE0; | |
1708 | cs->curchannel = bcs->channel; | |
1709 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | |
1710 | return; | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
1715 | if (at_state->pending_commands & PC_HUP) { | |
1716 | at_state->pending_commands &= ~PC_HUP; | |
1717 | schedule_sequence(cs, at_state, SEQ_HUP); | |
1718 | return; | |
1719 | } | |
1720 | ||
1721 | if (cs->at_state.pending_commands & PC_INIT) { | |
1722 | cs->at_state.pending_commands &= ~PC_INIT; | |
c35a87ff | 1723 | cs->dle = 0; |
14fa73a7 | 1724 | cs->inbuf->inputstate = INS_command; |
14fa73a7 HL |
1725 | schedule_sequence(cs, &cs->at_state, SEQ_INIT); |
1726 | return; | |
1727 | } | |
1728 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1729 | cs->at_state.pending_commands &= ~PC_SHUTDOWN; | |
1730 | schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN); | |
1731 | return; | |
1732 | } | |
1733 | if (cs->at_state.pending_commands & PC_CIDMODE) { | |
1734 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
9d4bee2b | 1735 | if (cs->mode == M_UNIMODEM) { |
14fa73a7 | 1736 | cs->retry_count = 1; |
14fa73a7 HL |
1737 | schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE); |
1738 | return; | |
1739 | } | |
1740 | } | |
1741 | ||
1742 | for (i = 0; i < cs->channels; ++i) { | |
1743 | bcs = cs->bcs + i; | |
1744 | if (bcs->at_state.pending_commands & PC_DLE1) { | |
1745 | bcs->at_state.pending_commands &= ~PC_DLE1; | |
1746 | cs->curchannel = bcs->channel; | |
1747 | schedule_sequence(cs, &cs->at_state, SEQ_DLE1); | |
1748 | return; | |
1749 | } | |
1750 | if (bcs->at_state.pending_commands & PC_ACCEPT) { | |
1751 | bcs->at_state.pending_commands &= ~PC_ACCEPT; | |
1752 | schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT); | |
1753 | return; | |
1754 | } | |
1755 | if (bcs->at_state.pending_commands & PC_DIAL) { | |
1756 | bcs->at_state.pending_commands &= ~PC_DIAL; | |
1757 | schedule_sequence(cs, &bcs->at_state, SEQ_DIAL); | |
1758 | return; | |
1759 | } | |
1760 | if (bcs->at_state.pending_commands & PC_CID) { | |
9d4bee2b | 1761 | switch (cs->mode) { |
14fa73a7 HL |
1762 | case M_UNIMODEM: |
1763 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1764 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1765 | cs->commands_pending = 1; |
14fa73a7 | 1766 | return; |
14fa73a7 HL |
1767 | case M_UNKNOWN: |
1768 | schedule_init(cs, MS_INIT); | |
1769 | return; | |
14fa73a7 HL |
1770 | } |
1771 | bcs->at_state.pending_commands &= ~PC_CID; | |
1772 | cs->curchannel = bcs->channel; | |
14fa73a7 | 1773 | cs->retry_count = 2; |
14fa73a7 HL |
1774 | schedule_sequence(cs, &cs->at_state, SEQ_CID); |
1775 | return; | |
1776 | } | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | static void process_events(struct cardstate *cs) | |
1781 | { | |
1782 | struct event_t *ev; | |
1783 | unsigned head, tail; | |
1784 | int i; | |
1785 | int check_flags = 0; | |
1786 | int was_busy; | |
69049cc8 | 1787 | unsigned long flags; |
14fa73a7 | 1788 | |
69049cc8 TS |
1789 | spin_lock_irqsave(&cs->ev_lock, flags); |
1790 | head = cs->ev_head; | |
14fa73a7 HL |
1791 | |
1792 | for (i = 0; i < 2 * MAX_EVENTS; ++i) { | |
69049cc8 | 1793 | tail = cs->ev_tail; |
14fa73a7 | 1794 | if (tail == head) { |
9d4bee2b | 1795 | if (!check_flags && !cs->commands_pending) |
14fa73a7 HL |
1796 | break; |
1797 | check_flags = 0; | |
69049cc8 | 1798 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1799 | process_command_flags(cs); |
69049cc8 TS |
1800 | spin_lock_irqsave(&cs->ev_lock, flags); |
1801 | tail = cs->ev_tail; | |
14fa73a7 | 1802 | if (tail == head) { |
9d4bee2b | 1803 | if (!cs->commands_pending) |
14fa73a7 HL |
1804 | break; |
1805 | continue; | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | ev = cs->events + head; | |
1810 | was_busy = cs->cur_at_seq != SEQ_NONE; | |
69049cc8 | 1811 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1812 | process_event(cs, ev); |
69049cc8 | 1813 | spin_lock_irqsave(&cs->ev_lock, flags); |
14fa73a7 HL |
1814 | kfree(ev->ptr); |
1815 | ev->ptr = NULL; | |
1816 | if (was_busy && cs->cur_at_seq == SEQ_NONE) | |
1817 | check_flags = 1; | |
1818 | ||
1819 | head = (head + 1) % MAX_EVENTS; | |
69049cc8 | 1820 | cs->ev_head = head; |
14fa73a7 HL |
1821 | } |
1822 | ||
69049cc8 TS |
1823 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
1824 | ||
14fa73a7 | 1825 | if (i == 2 * MAX_EVENTS) { |
784d5858 TS |
1826 | dev_err(cs->dev, |
1827 | "infinite loop in process_events; aborting.\n"); | |
14fa73a7 HL |
1828 | } |
1829 | } | |
1830 | ||
1831 | /* tasklet scheduled on any event received from the Gigaset device | |
1832 | * parameter: | |
1833 | * data ISDN controller state structure | |
1834 | */ | |
1835 | void gigaset_handle_event(unsigned long data) | |
1836 | { | |
1837 | struct cardstate *cs = (struct cardstate *) data; | |
1838 | ||
14fa73a7 | 1839 | /* handle incoming data on control/common channel */ |
9d4bee2b | 1840 | if (cs->inbuf->head != cs->inbuf->tail) { |
784d5858 | 1841 | gig_dbg(DEBUG_INTR, "processing new data"); |
14fa73a7 HL |
1842 | cs->ops->handle_input(cs->inbuf); |
1843 | } | |
1844 | ||
1845 | process_events(cs); | |
1846 | } |