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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 */ | |
f86936ff | 156 | {RSP_INIT, -1, -1, SEQ_INIT, 100, 1, {ACT_TIMEOUT} }, |
c35a87ff | 157 | |
f86936ff TS |
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 | |
f86936ff TS |
162 | {EV_TIMEOUT, 101, 101, -1, 102, 5, {0}, "Z\r"}, |
163 | {RSP_ERROR, 101, 101, -1, 102, 5, {0}, "Z\r"}, | |
c35a87ff | 164 | |
f86936ff TS |
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 | |
f86936ff TS |
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 | |
f86936ff TS |
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 | |
f86936ff TS |
182 | {RSP_ERROR, 103, 103, -1, 0, 0, {ACT_FAILINIT} }, |
183 | {EV_TIMEOUT, 103, 103, -1, 0, 0, {ACT_FAILINIT} }, | |
c35a87ff | 184 | |
f86936ff | 185 | {RSP_STRING, 120, 120, -1, 121, -1, {ACT_SETVER} }, |
c35a87ff | 186 | |
f86936ff TS |
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} }, | |
193 | {RSP_NONE, 121, 121, -1, 120, 0, {ACT_GETSTRING} }, | |
c35a87ff TS |
194 | |
195 | /* leave dle mode */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff | 211 | {RSP_RING, -1, -1, -1, -1, -1, {ACT_RING} }, |
c35a87ff TS |
212 | |
213 | /* get cid */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff | 233 | {RSP_INIT, 0, 0, SEQ_NOCID, 0, 0, {ACT_ABORTCID} }, |
c35a87ff TS |
234 | |
235 | /* reset */ | |
f86936ff TS |
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. */ | |
f86936ff TS |
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} }, | |
475be4d8 | 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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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 */ | |
f86936ff TS |
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*/ | |
f86936ff TS |
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) */ | |
f86936ff | 342 | {EV_BC_CLOSED, -1, -1, -1, -1, -1, {ACT_NOTIFY_BC_DOWN} }, |
c35a87ff TS |
343 | |
344 | /* misc. */ | |
f86936ff TS |
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} }, | |
475be4d8 | 349 | {RSP_LAST} |
14fa73a7 HL |
350 | }; |
351 | ||
352 | ||
50e4fe91 | 353 | static const struct resp_type_t { |
63b203b4 TS |
354 | char *response; |
355 | int resp_code; | |
356 | int type; | |
357 | } | |
358 | resp_type[] = | |
14fa73a7 | 359 | { |
917f5085 TS |
360 | {"OK", RSP_OK, RT_NOTHING}, |
361 | {"ERROR", RSP_ERROR, RT_NOTHING}, | |
362 | {"ZSAU", RSP_ZSAU, RT_ZSAU}, | |
363 | {"ZCAU", RSP_ZCAU, RT_ZCAU}, | |
364 | {"RING", RSP_RING, RT_RING}, | |
365 | {"ZGCI", RSP_ZGCI, RT_NUMBER}, | |
366 | {"ZVLS", RSP_ZVLS, RT_NUMBER}, | |
367 | {"ZCTP", RSP_ZCTP, RT_NUMBER}, | |
368 | {"ZDLE", RSP_ZDLE, RT_NUMBER}, | |
917f5085 TS |
369 | {"ZHLC", RSP_ZHLC, RT_STRING}, |
370 | {"ZBC", RSP_ZBC, RT_STRING}, | |
371 | {"NMBR", RSP_NMBR, RT_STRING}, | |
372 | {"ZCPN", RSP_ZCPN, RT_STRING}, | |
373 | {"ZCON", RSP_ZCON, RT_STRING}, | |
c35a87ff | 374 | {NULL, 0, 0} |
14fa73a7 HL |
375 | }; |
376 | ||
50e4fe91 | 377 | static const struct zsau_resp_t { |
63b203b4 TS |
378 | char *str; |
379 | int code; | |
380 | } | |
381 | zsau_resp[] = | |
50e4fe91 | 382 | { |
63b203b4 | 383 | {"OUTGOING_CALL_PROCEEDING", ZSAU_PROCEEDING}, |
50e4fe91 TS |
384 | {"CALL_DELIVERED", ZSAU_CALL_DELIVERED}, |
385 | {"ACTIVE", ZSAU_ACTIVE}, | |
386 | {"DISCONNECT_IND", ZSAU_DISCONNECT_IND}, | |
387 | {"NULL", ZSAU_NULL}, | |
388 | {"DISCONNECT_REQ", ZSAU_DISCONNECT_REQ}, | |
389 | {NULL, ZSAU_UNKNOWN} | |
390 | }; | |
391 | ||
14fa73a7 HL |
392 | /* retrieve CID from parsed response |
393 | * returns 0 if no CID, -1 if invalid CID, or CID value 1..65535 | |
394 | */ | |
395 | static int cid_of_response(char *s) | |
396 | { | |
19eccc2b | 397 | int cid; |
c9741380 | 398 | int rc; |
14fa73a7 HL |
399 | |
400 | if (s[-1] != ';') | |
401 | return 0; /* no CID separator */ | |
19eccc2b | 402 | rc = kstrtoint(s, 10, &cid); |
c9741380 | 403 | if (rc) |
14fa73a7 HL |
404 | return 0; /* CID not numeric */ |
405 | if (cid < 1 || cid > 65535) | |
406 | return -1; /* CID out of range */ | |
407 | return cid; | |
14fa73a7 HL |
408 | } |
409 | ||
6bf50114 TS |
410 | /* queue event with CID */ |
411 | static void add_cid_event(struct cardstate *cs, int cid, int type, | |
412 | void *ptr, int parameter) | |
413 | { | |
414 | unsigned long flags; | |
415 | unsigned next, tail; | |
416 | struct event_t *event; | |
417 | ||
418 | gig_dbg(DEBUG_EVENT, "queueing event %d for cid %d", type, cid); | |
419 | ||
420 | spin_lock_irqsave(&cs->ev_lock, flags); | |
421 | ||
422 | tail = cs->ev_tail; | |
423 | next = (tail + 1) % MAX_EVENTS; | |
424 | if (unlikely(next == cs->ev_head)) { | |
425 | dev_err(cs->dev, "event queue full\n"); | |
426 | kfree(ptr); | |
427 | } else { | |
428 | event = cs->events + tail; | |
429 | event->type = type; | |
430 | event->cid = cid; | |
431 | event->ptr = ptr; | |
432 | event->arg = NULL; | |
433 | event->parameter = parameter; | |
434 | event->at_state = NULL; | |
435 | cs->ev_tail = next; | |
436 | } | |
437 | ||
438 | spin_unlock_irqrestore(&cs->ev_lock, flags); | |
439 | } | |
440 | ||
1cec9727 TS |
441 | /** |
442 | * gigaset_handle_modem_response() - process received modem response | |
443 | * @cs: device descriptor structure. | |
444 | * | |
445 | * Called by asyncdata/isocdata if a block of data received from the | |
446 | * device must be processed as a modem command response. The data is | |
447 | * already in the cs structure. | |
14fa73a7 HL |
448 | */ |
449 | void gigaset_handle_modem_response(struct cardstate *cs) | |
450 | { | |
451 | unsigned char *argv[MAX_REC_PARAMS + 1]; | |
452 | int params; | |
453 | int i, j; | |
6bf50114 | 454 | char *ptr; |
35dc8457 | 455 | const struct resp_type_t *rt; |
50e4fe91 | 456 | const struct zsau_resp_t *zr; |
14fa73a7 | 457 | int curarg; |
14fa73a7 HL |
458 | int resp_code; |
459 | int param_type; | |
460 | int abort; | |
461 | size_t len; | |
6bf50114 | 462 | int cid, parameter; |
14fa73a7 HL |
463 | int rawstring; |
464 | ||
14fa73a7 HL |
465 | len = cs->cbytes; |
466 | if (!len) { | |
467 | /* ignore additional LFs/CRs (M10x config mode or cx100) */ | |
63b203b4 | 468 | gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[0]); |
14fa73a7 HL |
469 | return; |
470 | } | |
471 | cs->respdata[len] = 0; | |
14fa73a7 HL |
472 | argv[0] = cs->respdata; |
473 | params = 1; | |
474 | if (cs->at_state.getstring) { | |
475 | /* getstring only allowed without cid at the moment */ | |
476 | cs->at_state.getstring = 0; | |
477 | rawstring = 1; | |
478 | cid = 0; | |
479 | } else { | |
480 | /* parse line */ | |
481 | for (i = 0; i < len; i++) | |
482 | switch (cs->respdata[i]) { | |
483 | case ';': | |
484 | case ',': | |
485 | case '=': | |
486 | if (params > MAX_REC_PARAMS) { | |
784d5858 | 487 | dev_warn(cs->dev, |
475be4d8 | 488 | "too many parameters in response\n"); |
14fa73a7 HL |
489 | /* need last parameter (might be CID) */ |
490 | params--; | |
491 | } | |
492 | argv[params++] = cs->respdata + i + 1; | |
493 | } | |
494 | ||
495 | rawstring = 0; | |
475be4d8 | 496 | cid = params > 1 ? cid_of_response(argv[params - 1]) : 0; |
14fa73a7 HL |
497 | if (cid < 0) { |
498 | gigaset_add_event(cs, &cs->at_state, RSP_INVAL, | |
784d5858 | 499 | NULL, 0, NULL); |
14fa73a7 HL |
500 | return; |
501 | } | |
502 | ||
503 | for (j = 1; j < params; ++j) | |
504 | argv[j][-1] = 0; | |
505 | ||
1528b18f | 506 | gig_dbg(DEBUG_EVENT, "CMD received: %s", argv[0]); |
14fa73a7 HL |
507 | if (cid) { |
508 | --params; | |
1528b18f | 509 | gig_dbg(DEBUG_EVENT, "CID: %s", argv[params]); |
14fa73a7 | 510 | } |
1528b18f | 511 | gig_dbg(DEBUG_EVENT, "available params: %d", params - 1); |
14fa73a7 | 512 | for (j = 1; j < params; j++) |
1528b18f | 513 | gig_dbg(DEBUG_EVENT, "param %d: %s", j, argv[j]); |
14fa73a7 HL |
514 | } |
515 | ||
14fa73a7 HL |
516 | abort = 1; |
517 | curarg = 0; | |
518 | while (curarg < params) { | |
14fa73a7 HL |
519 | if (rawstring) { |
520 | resp_code = RSP_STRING; | |
521 | param_type = RT_STRING; | |
522 | } else { | |
523 | for (rt = resp_type; rt->response; ++rt) | |
524 | if (!strcmp(argv[curarg], rt->response)) | |
525 | break; | |
526 | ||
527 | if (!rt->response) { | |
6bf50114 | 528 | add_cid_event(cs, 0, RSP_NONE, NULL, 0); |
2ed5e4ff TS |
529 | gig_dbg(DEBUG_EVENT, |
530 | "unknown modem response: '%s'\n", | |
531 | argv[curarg]); | |
14fa73a7 HL |
532 | break; |
533 | } | |
534 | ||
535 | resp_code = rt->resp_code; | |
536 | param_type = rt->type; | |
537 | ++curarg; | |
538 | } | |
539 | ||
14fa73a7 HL |
540 | switch (param_type) { |
541 | case RT_NOTHING: | |
6bf50114 | 542 | add_cid_event(cs, cid, resp_code, NULL, 0); |
14fa73a7 HL |
543 | break; |
544 | case RT_RING: | |
545 | if (!cid) { | |
784d5858 TS |
546 | dev_err(cs->dev, |
547 | "received RING without CID!\n"); | |
6bf50114 | 548 | add_cid_event(cs, 0, RSP_INVAL, NULL, 0); |
14fa73a7 HL |
549 | abort = 1; |
550 | } else { | |
6bf50114 | 551 | add_cid_event(cs, 0, resp_code, NULL, cid); |
14fa73a7 HL |
552 | abort = 0; |
553 | } | |
554 | break; | |
555 | case RT_ZSAU: | |
556 | if (curarg >= params) { | |
6bf50114 TS |
557 | add_cid_event(cs, cid, resp_code, NULL, |
558 | ZSAU_NONE); | |
14fa73a7 HL |
559 | break; |
560 | } | |
50e4fe91 TS |
561 | for (zr = zsau_resp; zr->str; ++zr) |
562 | if (!strcmp(argv[curarg], zr->str)) | |
563 | break; | |
50e4fe91 | 564 | if (!zr->str) |
784d5858 | 565 | dev_warn(cs->dev, |
475be4d8 | 566 | "%s: unknown parameter %s after ZSAU\n", |
784d5858 | 567 | __func__, argv[curarg]); |
6bf50114 | 568 | add_cid_event(cs, cid, resp_code, NULL, zr->code); |
14fa73a7 HL |
569 | ++curarg; |
570 | break; | |
571 | case RT_STRING: | |
572 | if (curarg < params) { | |
6bf50114 TS |
573 | ptr = kstrdup(argv[curarg], GFP_ATOMIC); |
574 | if (!ptr) | |
784d5858 | 575 | dev_err(cs->dev, "out of memory\n"); |
14fa73a7 | 576 | ++curarg; |
6bf50114 TS |
577 | } else { |
578 | ptr = NULL; | |
14fa73a7 | 579 | } |
6bf50114 TS |
580 | gig_dbg(DEBUG_EVENT, "string==%s", ptr ? ptr : "NULL"); |
581 | add_cid_event(cs, cid, resp_code, ptr, 0); | |
14fa73a7 HL |
582 | break; |
583 | case RT_ZCAU: | |
6bf50114 | 584 | parameter = -1; |
14fa73a7 | 585 | if (curarg + 1 < params) { |
19eccc2b | 586 | u8 type, value; |
c9741380 | 587 | |
19eccc2b AD |
588 | i = kstrtou8(argv[curarg++], 16, &type); |
589 | j = kstrtou8(argv[curarg++], 16, &value); | |
590 | if (i == 0 && j == 0) | |
6bf50114 | 591 | parameter = (type << 8) | value; |
14fa73a7 HL |
592 | } else |
593 | curarg = params - 1; | |
6bf50114 | 594 | add_cid_event(cs, cid, resp_code, NULL, parameter); |
14fa73a7 HL |
595 | break; |
596 | case RT_NUMBER: | |
19eccc2b | 597 | if (curarg >= params || |
6bf50114 TS |
598 | kstrtoint(argv[curarg++], 10, ¶meter)) |
599 | parameter = -1; | |
600 | gig_dbg(DEBUG_EVENT, "parameter==%d", parameter); | |
601 | add_cid_event(cs, cid, resp_code, NULL, parameter); | |
602 | if (resp_code == RSP_ZDLE) | |
603 | cs->dle = parameter; | |
14fa73a7 HL |
604 | break; |
605 | } | |
606 | ||
14fa73a7 HL |
607 | if (abort) |
608 | break; | |
609 | } | |
610 | ||
14fa73a7 | 611 | if (curarg != params) |
1528b18f | 612 | gig_dbg(DEBUG_EVENT, |
784d5858 TS |
613 | "invalid number of processed parameters: %d/%d", |
614 | curarg, params); | |
14fa73a7 HL |
615 | } |
616 | EXPORT_SYMBOL_GPL(gigaset_handle_modem_response); | |
617 | ||
b8324f94 | 618 | /* disconnect_nobc |
14fa73a7 | 619 | * process closing of connection associated with given AT state structure |
b8324f94 | 620 | * without B channel |
14fa73a7 | 621 | */ |
b8324f94 TS |
622 | static void disconnect_nobc(struct at_state_t **at_state_p, |
623 | struct cardstate *cs) | |
14fa73a7 HL |
624 | { |
625 | unsigned long flags; | |
14fa73a7 | 626 | |
69049cc8 TS |
627 | spin_lock_irqsave(&cs->lock, flags); |
628 | ++(*at_state_p)->seq_index; | |
14fa73a7 HL |
629 | |
630 | /* revert to selected idle mode */ | |
69049cc8 | 631 | if (!cs->cidmode) { |
14fa73a7 | 632 | cs->at_state.pending_commands |= PC_UMMODE; |
1528b18f | 633 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
9d4bee2b | 634 | cs->commands_pending = 1; |
14fa73a7 HL |
635 | } |
636 | ||
b8324f94 TS |
637 | /* check for and deallocate temporary AT state */ |
638 | if (!list_empty(&(*at_state_p)->list)) { | |
14fa73a7 HL |
639 | list_del(&(*at_state_p)->list); |
640 | kfree(*at_state_p); | |
641 | *at_state_p = NULL; | |
b8324f94 TS |
642 | } |
643 | ||
644 | spin_unlock_irqrestore(&cs->lock, flags); | |
645 | } | |
646 | ||
647 | /* disconnect_bc | |
648 | * process closing of connection associated with given AT state structure | |
649 | * and B channel | |
650 | */ | |
651 | static void disconnect_bc(struct at_state_t *at_state, | |
652 | struct cardstate *cs, struct bc_state *bcs) | |
653 | { | |
654 | unsigned long flags; | |
655 | ||
656 | spin_lock_irqsave(&cs->lock, flags); | |
657 | ++at_state->seq_index; | |
658 | ||
659 | /* revert to selected idle mode */ | |
660 | if (!cs->cidmode) { | |
661 | cs->at_state.pending_commands |= PC_UMMODE; | |
662 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); | |
663 | cs->commands_pending = 1; | |
664 | } | |
665 | spin_unlock_irqrestore(&cs->lock, flags); | |
666 | ||
667 | /* invoke hardware specific handler */ | |
668 | cs->ops->close_bchannel(bcs); | |
669 | ||
670 | /* notify LL */ | |
671 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
672 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
673 | gigaset_isdn_hupD(bcs); | |
14fa73a7 HL |
674 | } |
675 | } | |
676 | ||
677 | /* get_free_channel | |
678 | * get a free AT state structure: either one of those associated with the | |
679 | * B channels of the Gigaset device, or if none of those is available, | |
680 | * a newly allocated one with bcs=NULL | |
b8324f94 | 681 | * The structure should be freed by calling disconnect_nobc() after use. |
14fa73a7 HL |
682 | */ |
683 | static inline struct at_state_t *get_free_channel(struct cardstate *cs, | |
784d5858 | 684 | int cid) |
14fa73a7 | 685 | /* cids: >0: siemens-cid |
f86936ff TS |
686 | * 0: without cid |
687 | * -1: no cid assigned yet | |
688 | */ | |
14fa73a7 HL |
689 | { |
690 | unsigned long flags; | |
691 | int i; | |
692 | struct at_state_t *ret; | |
693 | ||
694 | for (i = 0; i < cs->channels; ++i) | |
81fa7b82 | 695 | if (gigaset_get_channel(cs->bcs + i) >= 0) { |
14fa73a7 HL |
696 | ret = &cs->bcs[i].at_state; |
697 | ret->cid = cid; | |
698 | return ret; | |
699 | } | |
700 | ||
701 | spin_lock_irqsave(&cs->lock, flags); | |
702 | ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC); | |
703 | if (ret) { | |
704 | gigaset_at_init(ret, NULL, cs, cid); | |
705 | list_add(&ret->list, &cs->temp_at_states); | |
706 | } | |
707 | spin_unlock_irqrestore(&cs->lock, flags); | |
708 | return ret; | |
709 | } | |
710 | ||
711 | static void init_failed(struct cardstate *cs, int mode) | |
712 | { | |
713 | int i; | |
714 | struct at_state_t *at_state; | |
715 | ||
716 | cs->at_state.pending_commands &= ~PC_INIT; | |
9d4bee2b TS |
717 | cs->mode = mode; |
718 | cs->mstate = MS_UNINITIALIZED; | |
14fa73a7 HL |
719 | gigaset_free_channels(cs); |
720 | for (i = 0; i < cs->channels; ++i) { | |
721 | at_state = &cs->bcs[i].at_state; | |
722 | if (at_state->pending_commands & PC_CID) { | |
723 | at_state->pending_commands &= ~PC_CID; | |
724 | at_state->pending_commands |= PC_NOCID; | |
9d4bee2b | 725 | cs->commands_pending = 1; |
14fa73a7 HL |
726 | } |
727 | } | |
728 | } | |
729 | ||
730 | static void schedule_init(struct cardstate *cs, int state) | |
731 | { | |
732 | if (cs->at_state.pending_commands & PC_INIT) { | |
1528b18f | 733 | gig_dbg(DEBUG_EVENT, "not scheduling PC_INIT again"); |
14fa73a7 HL |
734 | return; |
735 | } | |
9d4bee2b TS |
736 | cs->mstate = state; |
737 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
738 | gigaset_block_channels(cs); |
739 | cs->at_state.pending_commands |= PC_INIT; | |
1528b18f | 740 | gig_dbg(DEBUG_EVENT, "Scheduling PC_INIT"); |
9d4bee2b | 741 | cs->commands_pending = 1; |
14fa73a7 HL |
742 | } |
743 | ||
63b203b4 TS |
744 | /* send an AT command |
745 | * adding the "AT" prefix, cid and DLE encapsulation as appropriate | |
746 | */ | |
747 | static void send_command(struct cardstate *cs, const char *cmd, | |
748 | struct at_state_t *at_state) | |
14fa73a7 | 749 | { |
63b203b4 | 750 | int cid = at_state->cid; |
e3628dd1 TS |
751 | struct cmdbuf_t *cb; |
752 | size_t buflen; | |
14fa73a7 | 753 | |
e3628dd1 | 754 | buflen = strlen(cmd) + 12; /* DLE ( A T 1 2 3 4 5 <cmd> DLE ) \0 */ |
63b203b4 | 755 | cb = kmalloc(sizeof(struct cmdbuf_t) + buflen, GFP_ATOMIC); |
e3628dd1 TS |
756 | if (!cb) { |
757 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
784d5858 TS |
758 | return; |
759 | } | |
e3628dd1 TS |
760 | if (cid > 0 && cid <= 65535) |
761 | cb->len = snprintf(cb->buf, buflen, | |
63b203b4 | 762 | cs->dle ? "\020(AT%d%s\020)" : "AT%d%s", |
475be4d8 | 763 | cid, cmd); |
e3628dd1 TS |
764 | else |
765 | cb->len = snprintf(cb->buf, buflen, | |
63b203b4 | 766 | cs->dle ? "\020(AT%s\020)" : "AT%s", |
475be4d8 | 767 | cmd); |
e3628dd1 TS |
768 | cb->offset = 0; |
769 | cb->next = NULL; | |
770 | cb->wake_tasklet = NULL; | |
771 | cs->ops->write_cmd(cs, cb); | |
14fa73a7 HL |
772 | } |
773 | ||
774 | static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid) | |
775 | { | |
776 | struct at_state_t *at_state; | |
777 | int i; | |
778 | unsigned long flags; | |
779 | ||
780 | if (cid == 0) | |
781 | return &cs->at_state; | |
782 | ||
783 | for (i = 0; i < cs->channels; ++i) | |
784 | if (cid == cs->bcs[i].at_state.cid) | |
785 | return &cs->bcs[i].at_state; | |
786 | ||
787 | spin_lock_irqsave(&cs->lock, flags); | |
788 | ||
789 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
790 | if (cid == at_state->cid) { | |
791 | spin_unlock_irqrestore(&cs->lock, flags); | |
792 | return at_state; | |
793 | } | |
794 | ||
795 | spin_unlock_irqrestore(&cs->lock, flags); | |
796 | ||
797 | return NULL; | |
798 | } | |
799 | ||
800 | static void bchannel_down(struct bc_state *bcs) | |
801 | { | |
14fa73a7 HL |
802 | if (bcs->chstate & CHS_B_UP) { |
803 | bcs->chstate &= ~CHS_B_UP; | |
088ec0cc | 804 | gigaset_isdn_hupB(bcs); |
14fa73a7 HL |
805 | } |
806 | ||
807 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
808 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
088ec0cc | 809 | gigaset_isdn_hupD(bcs); |
14fa73a7 HL |
810 | } |
811 | ||
812 | gigaset_free_channel(bcs); | |
813 | ||
814 | gigaset_bcs_reinit(bcs); | |
815 | } | |
816 | ||
817 | static void bchannel_up(struct bc_state *bcs) | |
818 | { | |
14fa73a7 | 819 | if (bcs->chstate & CHS_B_UP) { |
784d5858 TS |
820 | dev_notice(bcs->cs->dev, "%s: B channel already up\n", |
821 | __func__); | |
14fa73a7 HL |
822 | return; |
823 | } | |
824 | ||
825 | bcs->chstate |= CHS_B_UP; | |
088ec0cc | 826 | gigaset_isdn_connB(bcs); |
14fa73a7 HL |
827 | } |
828 | ||
c35a87ff | 829 | static void start_dial(struct at_state_t *at_state, void *data, |
475be4d8 | 830 | unsigned seq_index) |
14fa73a7 HL |
831 | { |
832 | struct bc_state *bcs = at_state->bcs; | |
833 | struct cardstate *cs = at_state->cs; | |
088ec0cc | 834 | char **commands = data; |
69049cc8 | 835 | unsigned long flags; |
088ec0cc | 836 | int i; |
14fa73a7 HL |
837 | |
838 | bcs->chstate |= CHS_NOTIFY_LL; | |
14fa73a7 | 839 | |
69049cc8 TS |
840 | spin_lock_irqsave(&cs->lock, flags); |
841 | if (at_state->seq_index != seq_index) { | |
842 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 843 | goto error; |
69049cc8 TS |
844 | } |
845 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 846 | |
088ec0cc TS |
847 | for (i = 0; i < AT_NUM; ++i) { |
848 | kfree(bcs->commands[i]); | |
849 | bcs->commands[i] = commands[i]; | |
850 | } | |
14fa73a7 HL |
851 | |
852 | at_state->pending_commands |= PC_CID; | |
1528b18f | 853 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CID"); |
9d4bee2b | 854 | cs->commands_pending = 1; |
14fa73a7 HL |
855 | return; |
856 | ||
857 | error: | |
088ec0cc TS |
858 | for (i = 0; i < AT_NUM; ++i) { |
859 | kfree(commands[i]); | |
860 | commands[i] = NULL; | |
861 | } | |
14fa73a7 | 862 | at_state->pending_commands |= PC_NOCID; |
1528b18f | 863 | gig_dbg(DEBUG_EVENT, "Scheduling PC_NOCID"); |
9d4bee2b | 864 | cs->commands_pending = 1; |
14fa73a7 HL |
865 | return; |
866 | } | |
867 | ||
868 | static void start_accept(struct at_state_t *at_state) | |
869 | { | |
870 | struct cardstate *cs = at_state->cs; | |
088ec0cc TS |
871 | struct bc_state *bcs = at_state->bcs; |
872 | int i; | |
14fa73a7 | 873 | |
088ec0cc TS |
874 | for (i = 0; i < AT_NUM; ++i) { |
875 | kfree(bcs->commands[i]); | |
876 | bcs->commands[i] = NULL; | |
877 | } | |
14fa73a7 | 878 | |
088ec0cc TS |
879 | bcs->commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC); |
880 | bcs->commands[AT_ISO] = kmalloc(9, GFP_ATOMIC); | |
881 | if (!bcs->commands[AT_PROTO] || !bcs->commands[AT_ISO]) { | |
882 | dev_err(at_state->cs->dev, "out of memory\n"); | |
9d4bee2b | 883 | /* error reset */ |
14fa73a7 | 884 | at_state->pending_commands |= PC_HUP; |
1528b18f | 885 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 886 | cs->commands_pending = 1; |
088ec0cc | 887 | return; |
14fa73a7 | 888 | } |
088ec0cc TS |
889 | |
890 | snprintf(bcs->commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2); | |
891 | snprintf(bcs->commands[AT_ISO], 9, "^SISO=%u\r", bcs->channel + 1); | |
892 | ||
893 | at_state->pending_commands |= PC_ACCEPT; | |
1528b18f | 894 | gig_dbg(DEBUG_EVENT, "Scheduling PC_ACCEPT"); |
088ec0cc | 895 | cs->commands_pending = 1; |
14fa73a7 HL |
896 | } |
897 | ||
898 | static void do_start(struct cardstate *cs) | |
899 | { | |
900 | gigaset_free_channels(cs); | |
901 | ||
9d4bee2b | 902 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
903 | schedule_init(cs, MS_INIT); |
904 | ||
69049cc8 | 905 | cs->isdn_up = 1; |
088ec0cc | 906 | gigaset_isdn_start(cs); |
14fa73a7 HL |
907 | |
908 | cs->waiting = 0; | |
909 | wake_up(&cs->waitqueue); | |
910 | } | |
911 | ||
912 | static void finish_shutdown(struct cardstate *cs) | |
913 | { | |
9d4bee2b TS |
914 | if (cs->mstate != MS_LOCKED) { |
915 | cs->mstate = MS_UNINITIALIZED; | |
916 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
917 | } |
918 | ||
69049cc8 TS |
919 | /* Tell the LL that the device is not available .. */ |
920 | if (cs->isdn_up) { | |
921 | cs->isdn_up = 0; | |
088ec0cc | 922 | gigaset_isdn_stop(cs); |
69049cc8 TS |
923 | } |
924 | ||
63b203b4 | 925 | /* The rest is done by cleanup_cs() in process context. */ |
14fa73a7 HL |
926 | |
927 | cs->cmd_result = -ENODEV; | |
928 | cs->waiting = 0; | |
2869b23e | 929 | wake_up(&cs->waitqueue); |
14fa73a7 HL |
930 | } |
931 | ||
932 | static void do_shutdown(struct cardstate *cs) | |
933 | { | |
934 | gigaset_block_channels(cs); | |
935 | ||
9d4bee2b TS |
936 | if (cs->mstate == MS_READY) { |
937 | cs->mstate = MS_SHUTDOWN; | |
14fa73a7 | 938 | cs->at_state.pending_commands |= PC_SHUTDOWN; |
1528b18f | 939 | gig_dbg(DEBUG_EVENT, "Scheduling PC_SHUTDOWN"); |
9d4bee2b | 940 | cs->commands_pending = 1; |
14fa73a7 HL |
941 | } else |
942 | finish_shutdown(cs); | |
943 | } | |
944 | ||
945 | static void do_stop(struct cardstate *cs) | |
946 | { | |
69049cc8 TS |
947 | unsigned long flags; |
948 | ||
949 | spin_lock_irqsave(&cs->lock, flags); | |
950 | cs->connected = 0; | |
951 | spin_unlock_irqrestore(&cs->lock, flags); | |
952 | ||
14fa73a7 HL |
953 | do_shutdown(cs); |
954 | } | |
955 | ||
956 | /* Entering cid mode or getting a cid failed: | |
957 | * try to initialize the device and try again. | |
958 | * | |
959 | * channel >= 0: getting cid for the channel failed | |
960 | * channel < 0: entering cid mode failed | |
961 | * | |
81fa7b82 | 962 | * returns 0 on success, <0 on failure |
14fa73a7 HL |
963 | */ |
964 | static int reinit_and_retry(struct cardstate *cs, int channel) | |
965 | { | |
966 | int i; | |
967 | ||
968 | if (--cs->retry_count <= 0) | |
81fa7b82 | 969 | return -EFAULT; |
14fa73a7 HL |
970 | |
971 | for (i = 0; i < cs->channels; ++i) | |
972 | if (cs->bcs[i].at_state.cid > 0) | |
81fa7b82 | 973 | return -EBUSY; |
14fa73a7 HL |
974 | |
975 | if (channel < 0) | |
784d5858 | 976 | dev_warn(cs->dev, |
475be4d8 | 977 | "Could not enter cid mode. Reinit device and try again.\n"); |
14fa73a7 | 978 | else { |
784d5858 | 979 | dev_warn(cs->dev, |
475be4d8 | 980 | "Could not get a call id. Reinit device and try again.\n"); |
14fa73a7 HL |
981 | cs->bcs[channel].at_state.pending_commands |= PC_CID; |
982 | } | |
983 | schedule_init(cs, MS_INIT); | |
81fa7b82 | 984 | return 0; |
14fa73a7 HL |
985 | } |
986 | ||
987 | static int at_state_invalid(struct cardstate *cs, | |
784d5858 | 988 | struct at_state_t *test_ptr) |
14fa73a7 HL |
989 | { |
990 | unsigned long flags; | |
991 | unsigned channel; | |
992 | struct at_state_t *at_state; | |
993 | int retval = 0; | |
994 | ||
995 | spin_lock_irqsave(&cs->lock, flags); | |
996 | ||
997 | if (test_ptr == &cs->at_state) | |
998 | goto exit; | |
999 | ||
1000 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
1001 | if (at_state == test_ptr) | |
1002 | goto exit; | |
1003 | ||
1004 | for (channel = 0; channel < cs->channels; ++channel) | |
1005 | if (&cs->bcs[channel].at_state == test_ptr) | |
1006 | goto exit; | |
1007 | ||
1008 | retval = 1; | |
1009 | exit: | |
1010 | spin_unlock_irqrestore(&cs->lock, flags); | |
1011 | return retval; | |
1012 | } | |
1013 | ||
1014 | static void handle_icall(struct cardstate *cs, struct bc_state *bcs, | |
63b203b4 | 1015 | struct at_state_t *at_state) |
14fa73a7 HL |
1016 | { |
1017 | int retval; | |
14fa73a7 HL |
1018 | |
1019 | retval = gigaset_isdn_icall(at_state); | |
1020 | switch (retval) { | |
1021 | case ICALL_ACCEPT: | |
1022 | break; | |
1023 | default: | |
784d5858 | 1024 | dev_err(cs->dev, "internal error: disposition=%d\n", retval); |
14fa73a7 HL |
1025 | /* --v-- fall through --v-- */ |
1026 | case ICALL_IGNORE: | |
1027 | case ICALL_REJECT: | |
1028 | /* hang up actively | |
1029 | * Device doc says that would reject the call. | |
1030 | * In fact it doesn't. | |
1031 | */ | |
1032 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1033 | cs->commands_pending = 1; |
14fa73a7 HL |
1034 | break; |
1035 | } | |
1036 | } | |
1037 | ||
1038 | static int do_lock(struct cardstate *cs) | |
1039 | { | |
1040 | int mode; | |
1041 | int i; | |
1042 | ||
9d4bee2b | 1043 | switch (cs->mstate) { |
14fa73a7 HL |
1044 | case MS_UNINITIALIZED: |
1045 | case MS_READY: | |
1046 | if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) || | |
1047 | cs->at_state.pending_commands) | |
1048 | return -EBUSY; | |
1049 | ||
1050 | for (i = 0; i < cs->channels; ++i) | |
1051 | if (cs->bcs[i].at_state.pending_commands) | |
1052 | return -EBUSY; | |
1053 | ||
81fa7b82 | 1054 | if (gigaset_get_channels(cs) < 0) |
14fa73a7 HL |
1055 | return -EBUSY; |
1056 | ||
1057 | break; | |
1058 | case MS_LOCKED: | |
14fa73a7 HL |
1059 | break; |
1060 | default: | |
1061 | return -EBUSY; | |
1062 | } | |
1063 | ||
9d4bee2b TS |
1064 | mode = cs->mode; |
1065 | cs->mstate = MS_LOCKED; | |
1066 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
1067 | |
1068 | return mode; | |
1069 | } | |
1070 | ||
1071 | static int do_unlock(struct cardstate *cs) | |
1072 | { | |
9d4bee2b | 1073 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
1074 | return -EINVAL; |
1075 | ||
9d4bee2b TS |
1076 | cs->mstate = MS_UNINITIALIZED; |
1077 | cs->mode = M_UNKNOWN; | |
14fa73a7 | 1078 | gigaset_free_channels(cs); |
69049cc8 | 1079 | if (cs->connected) |
14fa73a7 HL |
1080 | schedule_init(cs, MS_INIT); |
1081 | ||
1082 | return 0; | |
1083 | } | |
1084 | ||
1085 | static void do_action(int action, struct cardstate *cs, | |
1086 | struct bc_state *bcs, | |
1087 | struct at_state_t **p_at_state, char **pp_command, | |
1088 | int *p_genresp, int *p_resp_code, | |
1089 | struct event_t *ev) | |
1090 | { | |
1091 | struct at_state_t *at_state = *p_at_state; | |
b8324f94 | 1092 | struct bc_state *bcs2; |
14fa73a7 HL |
1093 | unsigned long flags; |
1094 | ||
1095 | int channel; | |
1096 | ||
1097 | unsigned char *s, *e; | |
1098 | int i; | |
1099 | unsigned long val; | |
1100 | ||
1101 | switch (action) { | |
1102 | case ACT_NOTHING: | |
1103 | break; | |
1104 | case ACT_TIMEOUT: | |
1105 | at_state->waiting = 1; | |
1106 | break; | |
1107 | case ACT_INIT: | |
14fa73a7 HL |
1108 | cs->at_state.pending_commands &= ~PC_INIT; |
1109 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1110 | cs->mode = M_UNIMODEM; |
69049cc8 TS |
1111 | spin_lock_irqsave(&cs->lock, flags); |
1112 | if (!cs->cidmode) { | |
1113 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 1114 | gigaset_free_channels(cs); |
9d4bee2b | 1115 | cs->mstate = MS_READY; |
14fa73a7 HL |
1116 | break; |
1117 | } | |
69049cc8 | 1118 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1119 | cs->at_state.pending_commands |= PC_CIDMODE; |
1528b18f | 1120 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1121 | cs->commands_pending = 1; |
14fa73a7 HL |
1122 | break; |
1123 | case ACT_FAILINIT: | |
784d5858 | 1124 | dev_warn(cs->dev, "Could not initialize the device.\n"); |
14fa73a7 HL |
1125 | cs->dle = 0; |
1126 | init_failed(cs, M_UNKNOWN); | |
1127 | cs->cur_at_seq = SEQ_NONE; | |
1128 | break; | |
1129 | case ACT_CONFIGMODE: | |
1130 | init_failed(cs, M_CONFIG); | |
1131 | cs->cur_at_seq = SEQ_NONE; | |
1132 | break; | |
1133 | case ACT_SETDLE1: | |
1134 | cs->dle = 1; | |
1135 | /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */ | |
1136 | cs->inbuf[0].inputstate &= | |
1137 | ~(INS_command | INS_DLE_command); | |
1138 | break; | |
1139 | case ACT_SETDLE0: | |
1140 | cs->dle = 0; | |
1141 | cs->inbuf[0].inputstate = | |
1142 | (cs->inbuf[0].inputstate & ~INS_DLE_command) | |
1143 | | INS_command; | |
1144 | break; | |
1145 | case ACT_CMODESET: | |
9d4bee2b | 1146 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 | 1147 | gigaset_free_channels(cs); |
9d4bee2b | 1148 | cs->mstate = MS_READY; |
14fa73a7 | 1149 | } |
9d4bee2b | 1150 | cs->mode = M_CID; |
14fa73a7 HL |
1151 | cs->cur_at_seq = SEQ_NONE; |
1152 | break; | |
1153 | case ACT_UMODESET: | |
9d4bee2b | 1154 | cs->mode = M_UNIMODEM; |
14fa73a7 HL |
1155 | cs->cur_at_seq = SEQ_NONE; |
1156 | break; | |
1157 | case ACT_FAILCMODE: | |
1158 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1159 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1160 | init_failed(cs, M_UNKNOWN); |
1161 | break; | |
1162 | } | |
81fa7b82 | 1163 | if (reinit_and_retry(cs, -1) < 0) |
14fa73a7 HL |
1164 | schedule_init(cs, MS_RECOVER); |
1165 | break; | |
1166 | case ACT_FAILUMODE: | |
1167 | cs->cur_at_seq = SEQ_NONE; | |
1168 | schedule_init(cs, MS_RECOVER); | |
1169 | break; | |
1170 | case ACT_HUPMODEM: | |
1171 | /* send "+++" (hangup in unimodem mode) */ | |
e3628dd1 TS |
1172 | if (cs->connected) { |
1173 | struct cmdbuf_t *cb; | |
1174 | ||
1175 | cb = kmalloc(sizeof(struct cmdbuf_t) + 3, GFP_ATOMIC); | |
1176 | if (!cb) { | |
1177 | dev_err(cs->dev, "%s: out of memory\n", | |
1178 | __func__); | |
1179 | return; | |
1180 | } | |
1181 | memcpy(cb->buf, "+++", 3); | |
1182 | cb->len = 3; | |
1183 | cb->offset = 0; | |
1184 | cb->next = NULL; | |
1185 | cb->wake_tasklet = NULL; | |
1186 | cs->ops->write_cmd(cs, cb); | |
1187 | } | |
14fa73a7 HL |
1188 | break; |
1189 | case ACT_RING: | |
1190 | /* get fresh AT state structure for new CID */ | |
b8324f94 TS |
1191 | at_state = get_free_channel(cs, ev->parameter); |
1192 | if (!at_state) { | |
784d5858 | 1193 | dev_warn(cs->dev, |
475be4d8 | 1194 | "RING ignored: could not allocate channel structure\n"); |
14fa73a7 HL |
1195 | break; |
1196 | } | |
1197 | ||
1198 | /* initialize AT state structure | |
1199 | * note that bcs may be NULL if no B channel is free | |
1200 | */ | |
b8324f94 | 1201 | at_state->ConState = 700; |
3a0a3a6b | 1202 | for (i = 0; i < STR_NUM; ++i) { |
b8324f94 TS |
1203 | kfree(at_state->str_var[i]); |
1204 | at_state->str_var[i] = NULL; | |
3a0a3a6b | 1205 | } |
b8324f94 | 1206 | at_state->int_var[VAR_ZCTP] = -1; |
14fa73a7 HL |
1207 | |
1208 | spin_lock_irqsave(&cs->lock, flags); | |
b8324f94 TS |
1209 | at_state->timer_expires = RING_TIMEOUT; |
1210 | at_state->timer_active = 1; | |
14fa73a7 HL |
1211 | spin_unlock_irqrestore(&cs->lock, flags); |
1212 | break; | |
1213 | case ACT_ICALL: | |
63b203b4 | 1214 | handle_icall(cs, bcs, at_state); |
14fa73a7 HL |
1215 | break; |
1216 | case ACT_FAILSDOWN: | |
784d5858 | 1217 | dev_warn(cs->dev, "Could not shut down the device.\n"); |
14fa73a7 HL |
1218 | /* fall through */ |
1219 | case ACT_FAKESDOWN: | |
1220 | case ACT_SDOWN: | |
1221 | cs->cur_at_seq = SEQ_NONE; | |
1222 | finish_shutdown(cs); | |
1223 | break; | |
1224 | case ACT_CONNECT: | |
1225 | if (cs->onechannel) { | |
1226 | at_state->pending_commands |= PC_DLE1; | |
9d4bee2b | 1227 | cs->commands_pending = 1; |
14fa73a7 HL |
1228 | break; |
1229 | } | |
1230 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1231 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1232 | cs->ops->init_bchannel(bcs); |
1233 | break; | |
1234 | case ACT_DLE1: | |
1235 | cs->cur_at_seq = SEQ_NONE; | |
1236 | bcs = cs->bcs + cs->curchannel; | |
1237 | ||
1238 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1239 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1240 | cs->ops->init_bchannel(bcs); |
1241 | break; | |
1242 | case ACT_FAKEHUP: | |
1243 | at_state->int_var[VAR_ZSAU] = ZSAU_NULL; | |
1244 | /* fall through */ | |
1245 | case ACT_DISCONNECT: | |
1246 | cs->cur_at_seq = SEQ_NONE; | |
1247 | at_state->cid = -1; | |
b8324f94 TS |
1248 | if (!bcs) { |
1249 | disconnect_nobc(p_at_state, cs); | |
1250 | } else if (cs->onechannel && cs->dle) { | |
14fa73a7 HL |
1251 | /* Check for other open channels not needed: |
1252 | * DLE only used for M10x with one B channel. | |
1253 | */ | |
1254 | at_state->pending_commands |= PC_DLE0; | |
9d4bee2b | 1255 | cs->commands_pending = 1; |
b8324f94 TS |
1256 | } else { |
1257 | disconnect_bc(at_state, cs, bcs); | |
1258 | } | |
14fa73a7 HL |
1259 | break; |
1260 | case ACT_FAKEDLE0: | |
1261 | at_state->int_var[VAR_ZDLE] = 0; | |
1262 | cs->dle = 0; | |
1263 | /* fall through */ | |
1264 | case ACT_DLE0: | |
1265 | cs->cur_at_seq = SEQ_NONE; | |
b8324f94 TS |
1266 | bcs2 = cs->bcs + cs->curchannel; |
1267 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1268 | break; |
1269 | case ACT_ABORTHUP: | |
1270 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 | 1271 | dev_warn(cs->dev, "Could not hang up.\n"); |
14fa73a7 | 1272 | at_state->cid = -1; |
b8324f94 TS |
1273 | if (!bcs) |
1274 | disconnect_nobc(p_at_state, cs); | |
1275 | else if (cs->onechannel) | |
14fa73a7 | 1276 | at_state->pending_commands |= PC_DLE0; |
698e3ed9 | 1277 | else |
b8324f94 | 1278 | disconnect_bc(at_state, cs, bcs); |
14fa73a7 HL |
1279 | schedule_init(cs, MS_RECOVER); |
1280 | break; | |
1281 | case ACT_FAILDLE0: | |
1282 | cs->cur_at_seq = SEQ_NONE; | |
5dcd7d84 TS |
1283 | dev_warn(cs->dev, "Error leaving DLE mode.\n"); |
1284 | cs->dle = 0; | |
b8324f94 TS |
1285 | bcs2 = cs->bcs + cs->curchannel; |
1286 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1287 | schedule_init(cs, MS_RECOVER); |
1288 | break; | |
1289 | case ACT_FAILDLE1: | |
1290 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 TS |
1291 | dev_warn(cs->dev, |
1292 | "Could not enter DLE mode. Trying to hang up.\n"); | |
14fa73a7 HL |
1293 | channel = cs->curchannel; |
1294 | cs->bcs[channel].at_state.pending_commands |= PC_HUP; | |
9d4bee2b | 1295 | cs->commands_pending = 1; |
14fa73a7 HL |
1296 | break; |
1297 | ||
1298 | case ACT_CID: /* got cid; start dialing */ | |
1299 | cs->cur_at_seq = SEQ_NONE; | |
1300 | channel = cs->curchannel; | |
1301 | if (ev->parameter > 0 && ev->parameter <= 65535) { | |
1302 | cs->bcs[channel].at_state.cid = ev->parameter; | |
1303 | cs->bcs[channel].at_state.pending_commands |= | |
1304 | PC_DIAL; | |
9d4bee2b | 1305 | cs->commands_pending = 1; |
14fa73a7 HL |
1306 | break; |
1307 | } | |
63b203b4 | 1308 | /* bad cid: fall through */ |
14fa73a7 HL |
1309 | case ACT_FAILCID: |
1310 | cs->cur_at_seq = SEQ_NONE; | |
1311 | channel = cs->curchannel; | |
81fa7b82 | 1312 | if (reinit_and_retry(cs, channel) < 0) { |
784d5858 TS |
1313 | dev_warn(cs->dev, |
1314 | "Could not get a call ID. Cannot dial.\n"); | |
b8324f94 TS |
1315 | bcs2 = cs->bcs + channel; |
1316 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1317 | } |
1318 | break; | |
1319 | case ACT_ABORTCID: | |
1320 | cs->cur_at_seq = SEQ_NONE; | |
b8324f94 TS |
1321 | bcs2 = cs->bcs + cs->curchannel; |
1322 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1323 | break; |
1324 | ||
1325 | case ACT_DIALING: | |
1326 | case ACT_ACCEPTED: | |
1327 | cs->cur_at_seq = SEQ_NONE; | |
1328 | break; | |
1329 | ||
c35a87ff | 1330 | case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL procssng */ |
b8324f94 TS |
1331 | if (bcs) |
1332 | disconnect_bc(at_state, cs, bcs); | |
1333 | else | |
1334 | disconnect_nobc(p_at_state, cs); | |
14fa73a7 HL |
1335 | break; |
1336 | ||
1337 | case ACT_ABORTDIAL: /* error/timeout during dial preparation */ | |
1338 | cs->cur_at_seq = SEQ_NONE; | |
1339 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1340 | cs->commands_pending = 1; |
14fa73a7 HL |
1341 | break; |
1342 | ||
1343 | case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */ | |
1344 | case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */ | |
1345 | case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */ | |
1346 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1347 | cs->commands_pending = 1; |
14fa73a7 | 1348 | break; |
917f5085 | 1349 | case ACT_GETSTRING: /* warning: RING, ZDLE, ... |
784d5858 | 1350 | are not handled properly anymore */ |
14fa73a7 HL |
1351 | at_state->getstring = 1; |
1352 | break; | |
1353 | case ACT_SETVER: | |
1354 | if (!ev->ptr) { | |
1355 | *p_genresp = 1; | |
1356 | *p_resp_code = RSP_ERROR; | |
1357 | break; | |
1358 | } | |
1359 | s = ev->ptr; | |
1360 | ||
1361 | if (!strcmp(s, "OK")) { | |
e055d03d | 1362 | /* OK without version string: assume old response */ |
14fa73a7 | 1363 | *p_genresp = 1; |
e055d03d | 1364 | *p_resp_code = RSP_NONE; |
14fa73a7 HL |
1365 | break; |
1366 | } | |
1367 | ||
1368 | for (i = 0; i < 4; ++i) { | |
1369 | val = simple_strtoul(s, (char **) &e, 10); | |
1370 | if (val > INT_MAX || e == s) | |
1371 | break; | |
1372 | if (i == 3) { | |
1373 | if (*e) | |
1374 | break; | |
1375 | } else if (*e != '.') | |
1376 | break; | |
1377 | else | |
1378 | s = e + 1; | |
1379 | cs->fwver[i] = val; | |
1380 | } | |
1381 | if (i != 4) { | |
1382 | *p_genresp = 1; | |
1383 | *p_resp_code = RSP_ERROR; | |
1384 | break; | |
1385 | } | |
14fa73a7 HL |
1386 | cs->gotfwver = 0; |
1387 | break; | |
1388 | case ACT_GOTVER: | |
1389 | if (cs->gotfwver == 0) { | |
1390 | cs->gotfwver = 1; | |
1528b18f | 1391 | gig_dbg(DEBUG_EVENT, |
784d5858 TS |
1392 | "firmware version %02d.%03d.%02d.%02d", |
1393 | cs->fwver[0], cs->fwver[1], | |
1394 | cs->fwver[2], cs->fwver[3]); | |
14fa73a7 HL |
1395 | break; |
1396 | } | |
1397 | /* fall through */ | |
1398 | case ACT_FAILVER: | |
1399 | cs->gotfwver = -1; | |
784d5858 | 1400 | dev_err(cs->dev, "could not read firmware version.\n"); |
14fa73a7 | 1401 | break; |
14fa73a7 | 1402 | case ACT_ERROR: |
05eae94f TS |
1403 | gig_dbg(DEBUG_ANY, "%s: ERROR response in ConState %d", |
1404 | __func__, at_state->ConState); | |
1405 | cs->cur_at_seq = SEQ_NONE; | |
14fa73a7 | 1406 | break; |
14fa73a7 | 1407 | case ACT_DEBUG: |
784d5858 | 1408 | gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d", |
14fa73a7 HL |
1409 | __func__, ev->type, at_state->ConState); |
1410 | break; | |
1411 | case ACT_WARN: | |
784d5858 TS |
1412 | dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n", |
1413 | __func__, ev->type, at_state->ConState); | |
14fa73a7 HL |
1414 | break; |
1415 | case ACT_ZCAU: | |
784d5858 TS |
1416 | dev_warn(cs->dev, "cause code %04x in connection state %d.\n", |
1417 | ev->parameter, at_state->ConState); | |
14fa73a7 HL |
1418 | break; |
1419 | ||
f86936ff TS |
1420 | /* events from the LL */ |
1421 | ||
14fa73a7 | 1422 | case ACT_DIAL: |
846ac301 TS |
1423 | if (!ev->ptr) { |
1424 | *p_genresp = 1; | |
1425 | *p_resp_code = RSP_ERROR; | |
1426 | break; | |
1427 | } | |
14fa73a7 HL |
1428 | start_dial(at_state, ev->ptr, ev->parameter); |
1429 | break; | |
1430 | case ACT_ACCEPT: | |
1431 | start_accept(at_state); | |
1432 | break; | |
14fa73a7 HL |
1433 | case ACT_HUP: |
1434 | at_state->pending_commands |= PC_HUP; | |
1528b18f | 1435 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 1436 | cs->commands_pending = 1; |
14fa73a7 HL |
1437 | break; |
1438 | ||
f86936ff TS |
1439 | /* hotplug events */ |
1440 | ||
14fa73a7 HL |
1441 | case ACT_STOP: |
1442 | do_stop(cs); | |
1443 | break; | |
1444 | case ACT_START: | |
1445 | do_start(cs); | |
1446 | break; | |
1447 | ||
f86936ff TS |
1448 | /* events from the interface */ |
1449 | ||
14fa73a7 HL |
1450 | case ACT_IF_LOCK: |
1451 | cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs); | |
1452 | cs->waiting = 0; | |
1453 | wake_up(&cs->waitqueue); | |
1454 | break; | |
1455 | case ACT_IF_VER: | |
1456 | if (ev->parameter != 0) | |
1457 | cs->cmd_result = -EINVAL; | |
1458 | else if (cs->gotfwver != 1) { | |
1459 | cs->cmd_result = -ENOENT; | |
1460 | } else { | |
1461 | memcpy(ev->arg, cs->fwver, sizeof cs->fwver); | |
1462 | cs->cmd_result = 0; | |
1463 | } | |
1464 | cs->waiting = 0; | |
1465 | wake_up(&cs->waitqueue); | |
1466 | break; | |
1467 | ||
f86936ff TS |
1468 | /* events from the proc file system */ |
1469 | ||
14fa73a7 | 1470 | case ACT_PROC_CIDMODE: |
69049cc8 TS |
1471 | spin_lock_irqsave(&cs->lock, flags); |
1472 | if (ev->parameter != cs->cidmode) { | |
1473 | cs->cidmode = ev->parameter; | |
14fa73a7 HL |
1474 | if (ev->parameter) { |
1475 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1476 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
14fa73a7 HL |
1477 | } else { |
1478 | cs->at_state.pending_commands |= PC_UMMODE; | |
1528b18f | 1479 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
14fa73a7 | 1480 | } |
9d4bee2b | 1481 | cs->commands_pending = 1; |
14fa73a7 | 1482 | } |
69049cc8 | 1483 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1484 | cs->waiting = 0; |
1485 | wake_up(&cs->waitqueue); | |
1486 | break; | |
1487 | ||
f86936ff TS |
1488 | /* events from the hardware drivers */ |
1489 | ||
14fa73a7 HL |
1490 | case ACT_NOTIFY_BC_DOWN: |
1491 | bchannel_down(bcs); | |
1492 | break; | |
1493 | case ACT_NOTIFY_BC_UP: | |
1494 | bchannel_up(bcs); | |
1495 | break; | |
1496 | case ACT_SHUTDOWN: | |
1497 | do_shutdown(cs); | |
1498 | break; | |
1499 | ||
1500 | ||
1501 | default: | |
1502 | if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) { | |
1503 | *pp_command = at_state->bcs->commands[action - ACT_CMD]; | |
1504 | if (!*pp_command) { | |
1505 | *p_genresp = 1; | |
1506 | *p_resp_code = RSP_NULL; | |
1507 | } | |
1508 | } else | |
784d5858 | 1509 | dev_err(cs->dev, "%s: action==%d!\n", __func__, action); |
14fa73a7 HL |
1510 | } |
1511 | } | |
1512 | ||
1513 | /* State machine to do the calling and hangup procedure */ | |
1514 | static void process_event(struct cardstate *cs, struct event_t *ev) | |
1515 | { | |
1516 | struct bc_state *bcs; | |
1517 | char *p_command = NULL; | |
1518 | struct reply_t *rep; | |
1519 | int rcode; | |
1520 | int genresp = 0; | |
1521 | int resp_code = RSP_ERROR; | |
14fa73a7 HL |
1522 | struct at_state_t *at_state; |
1523 | int index; | |
1524 | int curact; | |
1525 | unsigned long flags; | |
1526 | ||
14fa73a7 HL |
1527 | if (ev->cid >= 0) { |
1528 | at_state = at_state_from_cid(cs, ev->cid); | |
1529 | if (!at_state) { | |
1528b18f TS |
1530 | gig_dbg(DEBUG_EVENT, "event %d for invalid cid %d", |
1531 | ev->type, ev->cid); | |
14fa73a7 | 1532 | gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID, |
784d5858 | 1533 | NULL, 0, NULL); |
14fa73a7 HL |
1534 | return; |
1535 | } | |
1536 | } else { | |
1537 | at_state = ev->at_state; | |
1538 | if (at_state_invalid(cs, at_state)) { | |
1528b18f | 1539 | gig_dbg(DEBUG_EVENT, "event for invalid at_state %p", |
784d5858 | 1540 | at_state); |
14fa73a7 HL |
1541 | return; |
1542 | } | |
1543 | } | |
1544 | ||
1528b18f | 1545 | gig_dbg(DEBUG_EVENT, "connection state %d, event %d", |
784d5858 | 1546 | at_state->ConState, ev->type); |
14fa73a7 HL |
1547 | |
1548 | bcs = at_state->bcs; | |
14fa73a7 HL |
1549 | |
1550 | /* Setting the pointer to the dial array */ | |
1551 | rep = at_state->replystruct; | |
14fa73a7 | 1552 | |
69049cc8 | 1553 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1554 | if (ev->type == EV_TIMEOUT) { |
69049cc8 | 1555 | if (ev->parameter != at_state->timer_index |
14fa73a7 HL |
1556 | || !at_state->timer_active) { |
1557 | ev->type = RSP_NONE; /* old timeout */ | |
1528b18f | 1558 | gig_dbg(DEBUG_EVENT, "old timeout"); |
63b203b4 TS |
1559 | } else { |
1560 | if (at_state->waiting) | |
1561 | gig_dbg(DEBUG_EVENT, "stopped waiting"); | |
1562 | else | |
1563 | gig_dbg(DEBUG_EVENT, "timeout occurred"); | |
1564 | } | |
14fa73a7 | 1565 | } |
69049cc8 | 1566 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1567 | |
917f5085 TS |
1568 | /* if the response belongs to a variable in at_state->int_var[VAR_XXXX] |
1569 | or at_state->str_var[STR_XXXX], set it */ | |
14fa73a7 HL |
1570 | if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) { |
1571 | index = ev->type - RSP_VAR; | |
1572 | at_state->int_var[index] = ev->parameter; | |
1573 | } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) { | |
1574 | index = ev->type - RSP_STR; | |
1575 | kfree(at_state->str_var[index]); | |
1576 | at_state->str_var[index] = ev->ptr; | |
917f5085 TS |
1577 | ev->ptr = NULL; /* prevent process_events() from |
1578 | deallocating ptr */ | |
14fa73a7 HL |
1579 | } |
1580 | ||
1581 | if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING) | |
1582 | at_state->getstring = 0; | |
1583 | ||
917f5085 TS |
1584 | /* Search row in dial array which matches modem response and current |
1585 | constate */ | |
14fa73a7 HL |
1586 | for (;; rep++) { |
1587 | rcode = rep->resp_code; | |
14fa73a7 HL |
1588 | if (rcode == RSP_LAST) { |
1589 | /* found nothing...*/ | |
784d5858 | 1590 | dev_warn(cs->dev, "%s: rcode=RSP_LAST: " |
475be4d8 | 1591 | "resp_code %d in ConState %d!\n", |
784d5858 | 1592 | __func__, ev->type, at_state->ConState); |
14fa73a7 HL |
1593 | return; |
1594 | } | |
1595 | if ((rcode == RSP_ANY || rcode == ev->type) | |
475be4d8 JP |
1596 | && ((int) at_state->ConState >= rep->min_ConState) |
1597 | && (rep->max_ConState < 0 | |
1598 | || (int) at_state->ConState <= rep->max_ConState) | |
1599 | && (rep->parameter < 0 || rep->parameter == ev->parameter)) | |
14fa73a7 HL |
1600 | break; |
1601 | } | |
1602 | ||
1603 | p_command = rep->command; | |
1604 | ||
1605 | at_state->waiting = 0; | |
1606 | for (curact = 0; curact < MAXACT; ++curact) { | |
1607 | /* The row tells us what we should do .. | |
1608 | */ | |
c35a87ff TS |
1609 | do_action(rep->action[curact], cs, bcs, &at_state, &p_command, |
1610 | &genresp, &resp_code, ev); | |
14fa73a7 | 1611 | if (!at_state) |
63b203b4 TS |
1612 | /* at_state destroyed by disconnect */ |
1613 | return; | |
14fa73a7 HL |
1614 | } |
1615 | ||
63b203b4 TS |
1616 | /* Jump to the next con-state regarding the array */ |
1617 | if (rep->new_ConState >= 0) | |
1618 | at_state->ConState = rep->new_ConState; | |
14fa73a7 | 1619 | |
63b203b4 TS |
1620 | if (genresp) { |
1621 | spin_lock_irqsave(&cs->lock, flags); | |
1622 | at_state->timer_expires = 0; | |
1623 | at_state->timer_active = 0; | |
1624 | spin_unlock_irqrestore(&cs->lock, flags); | |
1625 | gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL); | |
1626 | } else { | |
1627 | /* Send command to modem if not NULL... */ | |
1628 | if (p_command) { | |
1629 | if (cs->connected) | |
1630 | send_command(cs, p_command, at_state); | |
1631 | else | |
1632 | gigaset_add_event(cs, at_state, RSP_NODEV, | |
1633 | NULL, 0, NULL); | |
1634 | } | |
1635 | ||
1636 | spin_lock_irqsave(&cs->lock, flags); | |
1637 | if (!rep->timeout) { | |
c35a87ff TS |
1638 | at_state->timer_expires = 0; |
1639 | at_state->timer_active = 0; | |
63b203b4 TS |
1640 | } else if (rep->timeout > 0) { /* new timeout */ |
1641 | at_state->timer_expires = rep->timeout * 10; | |
1642 | at_state->timer_active = 1; | |
1643 | ++at_state->timer_index; | |
14fa73a7 | 1644 | } |
63b203b4 | 1645 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1646 | } |
1647 | } | |
1648 | ||
1649 | static void schedule_sequence(struct cardstate *cs, | |
1650 | struct at_state_t *at_state, int sequence) | |
1651 | { | |
1652 | cs->cur_at_seq = sequence; | |
1653 | gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL); | |
1654 | } | |
1655 | ||
1656 | static void process_command_flags(struct cardstate *cs) | |
1657 | { | |
1658 | struct at_state_t *at_state = NULL; | |
1659 | struct bc_state *bcs; | |
1660 | int i; | |
1661 | int sequence; | |
69049cc8 | 1662 | unsigned long flags; |
14fa73a7 | 1663 | |
9d4bee2b | 1664 | cs->commands_pending = 0; |
14fa73a7 HL |
1665 | |
1666 | if (cs->cur_at_seq) { | |
1528b18f | 1667 | gig_dbg(DEBUG_EVENT, "not searching scheduled commands: busy"); |
14fa73a7 HL |
1668 | return; |
1669 | } | |
1670 | ||
1528b18f | 1671 | gig_dbg(DEBUG_EVENT, "searching scheduled commands"); |
14fa73a7 HL |
1672 | |
1673 | sequence = SEQ_NONE; | |
1674 | ||
1675 | /* clear pending_commands and hangup channels on shutdown */ | |
1676 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1677 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1678 | for (i = 0; i < cs->channels; ++i) { | |
1679 | bcs = cs->bcs + i; | |
1680 | at_state = &bcs->at_state; | |
1681 | at_state->pending_commands &= | |
1682 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1683 | if (at_state->cid > 0) | |
1684 | at_state->pending_commands |= PC_HUP; | |
1685 | if (at_state->pending_commands & PC_CID) { | |
1686 | at_state->pending_commands |= PC_NOCID; | |
1687 | at_state->pending_commands &= ~PC_CID; | |
1688 | } | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | /* clear pending_commands and hangup channels on reset */ | |
1693 | if (cs->at_state.pending_commands & PC_INIT) { | |
1694 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1695 | for (i = 0; i < cs->channels; ++i) { | |
1696 | bcs = cs->bcs + i; | |
1697 | at_state = &bcs->at_state; | |
1698 | at_state->pending_commands &= | |
1699 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1700 | if (at_state->cid > 0) | |
1701 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1702 | if (cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1703 | if (at_state->pending_commands & PC_CID) { |
1704 | at_state->pending_commands |= PC_NOCID; | |
1705 | at_state->pending_commands &= ~PC_CID; | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | } | |
1710 | ||
c35a87ff TS |
1711 | /* only switch back to unimodem mode if no commands are pending and |
1712 | * no channels are up */ | |
69049cc8 | 1713 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1714 | if (cs->at_state.pending_commands == PC_UMMODE |
69049cc8 | 1715 | && !cs->cidmode |
14fa73a7 | 1716 | && list_empty(&cs->temp_at_states) |
9d4bee2b | 1717 | && cs->mode == M_CID) { |
14fa73a7 HL |
1718 | sequence = SEQ_UMMODE; |
1719 | at_state = &cs->at_state; | |
1720 | for (i = 0; i < cs->channels; ++i) { | |
1721 | bcs = cs->bcs + i; | |
1722 | if (bcs->at_state.pending_commands || | |
1723 | bcs->at_state.cid > 0) { | |
1724 | sequence = SEQ_NONE; | |
1725 | break; | |
1726 | } | |
1727 | } | |
1728 | } | |
69049cc8 | 1729 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1730 | cs->at_state.pending_commands &= ~PC_UMMODE; |
1731 | if (sequence != SEQ_NONE) { | |
1732 | schedule_sequence(cs, at_state, sequence); | |
1733 | return; | |
1734 | } | |
1735 | ||
1736 | for (i = 0; i < cs->channels; ++i) { | |
1737 | bcs = cs->bcs + i; | |
1738 | if (bcs->at_state.pending_commands & PC_HUP) { | |
d2ca8481 TS |
1739 | if (cs->dle) { |
1740 | cs->curchannel = bcs->channel; | |
1741 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | |
1742 | return; | |
1743 | } | |
14fa73a7 HL |
1744 | bcs->at_state.pending_commands &= ~PC_HUP; |
1745 | if (bcs->at_state.pending_commands & PC_CID) { | |
1746 | /* not yet dialing: PC_NOCID is sufficient */ | |
1747 | bcs->at_state.pending_commands |= PC_NOCID; | |
1748 | bcs->at_state.pending_commands &= ~PC_CID; | |
1749 | } else { | |
1750 | schedule_sequence(cs, &bcs->at_state, SEQ_HUP); | |
1751 | return; | |
1752 | } | |
1753 | } | |
1754 | if (bcs->at_state.pending_commands & PC_NOCID) { | |
1755 | bcs->at_state.pending_commands &= ~PC_NOCID; | |
1756 | cs->curchannel = bcs->channel; | |
1757 | schedule_sequence(cs, &cs->at_state, SEQ_NOCID); | |
1758 | return; | |
1759 | } else if (bcs->at_state.pending_commands & PC_DLE0) { | |
1760 | bcs->at_state.pending_commands &= ~PC_DLE0; | |
1761 | cs->curchannel = bcs->channel; | |
1762 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | |
1763 | return; | |
1764 | } | |
1765 | } | |
1766 | ||
1767 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
1768 | if (at_state->pending_commands & PC_HUP) { | |
1769 | at_state->pending_commands &= ~PC_HUP; | |
1770 | schedule_sequence(cs, at_state, SEQ_HUP); | |
1771 | return; | |
1772 | } | |
1773 | ||
1774 | if (cs->at_state.pending_commands & PC_INIT) { | |
1775 | cs->at_state.pending_commands &= ~PC_INIT; | |
c35a87ff | 1776 | cs->dle = 0; |
14fa73a7 | 1777 | cs->inbuf->inputstate = INS_command; |
14fa73a7 HL |
1778 | schedule_sequence(cs, &cs->at_state, SEQ_INIT); |
1779 | return; | |
1780 | } | |
1781 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1782 | cs->at_state.pending_commands &= ~PC_SHUTDOWN; | |
1783 | schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN); | |
1784 | return; | |
1785 | } | |
1786 | if (cs->at_state.pending_commands & PC_CIDMODE) { | |
1787 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
9d4bee2b | 1788 | if (cs->mode == M_UNIMODEM) { |
14fa73a7 | 1789 | cs->retry_count = 1; |
14fa73a7 HL |
1790 | schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE); |
1791 | return; | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | for (i = 0; i < cs->channels; ++i) { | |
1796 | bcs = cs->bcs + i; | |
1797 | if (bcs->at_state.pending_commands & PC_DLE1) { | |
1798 | bcs->at_state.pending_commands &= ~PC_DLE1; | |
1799 | cs->curchannel = bcs->channel; | |
1800 | schedule_sequence(cs, &cs->at_state, SEQ_DLE1); | |
1801 | return; | |
1802 | } | |
1803 | if (bcs->at_state.pending_commands & PC_ACCEPT) { | |
1804 | bcs->at_state.pending_commands &= ~PC_ACCEPT; | |
1805 | schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT); | |
1806 | return; | |
1807 | } | |
1808 | if (bcs->at_state.pending_commands & PC_DIAL) { | |
1809 | bcs->at_state.pending_commands &= ~PC_DIAL; | |
1810 | schedule_sequence(cs, &bcs->at_state, SEQ_DIAL); | |
1811 | return; | |
1812 | } | |
1813 | if (bcs->at_state.pending_commands & PC_CID) { | |
9d4bee2b | 1814 | switch (cs->mode) { |
14fa73a7 HL |
1815 | case M_UNIMODEM: |
1816 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1817 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1818 | cs->commands_pending = 1; |
14fa73a7 | 1819 | return; |
14fa73a7 HL |
1820 | case M_UNKNOWN: |
1821 | schedule_init(cs, MS_INIT); | |
1822 | return; | |
14fa73a7 HL |
1823 | } |
1824 | bcs->at_state.pending_commands &= ~PC_CID; | |
1825 | cs->curchannel = bcs->channel; | |
14fa73a7 | 1826 | cs->retry_count = 2; |
14fa73a7 HL |
1827 | schedule_sequence(cs, &cs->at_state, SEQ_CID); |
1828 | return; | |
1829 | } | |
1830 | } | |
1831 | } | |
1832 | ||
1833 | static void process_events(struct cardstate *cs) | |
1834 | { | |
1835 | struct event_t *ev; | |
1836 | unsigned head, tail; | |
1837 | int i; | |
1838 | int check_flags = 0; | |
1839 | int was_busy; | |
69049cc8 | 1840 | unsigned long flags; |
14fa73a7 | 1841 | |
69049cc8 TS |
1842 | spin_lock_irqsave(&cs->ev_lock, flags); |
1843 | head = cs->ev_head; | |
14fa73a7 HL |
1844 | |
1845 | for (i = 0; i < 2 * MAX_EVENTS; ++i) { | |
69049cc8 | 1846 | tail = cs->ev_tail; |
14fa73a7 | 1847 | if (tail == head) { |
9d4bee2b | 1848 | if (!check_flags && !cs->commands_pending) |
14fa73a7 HL |
1849 | break; |
1850 | check_flags = 0; | |
69049cc8 | 1851 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1852 | process_command_flags(cs); |
69049cc8 TS |
1853 | spin_lock_irqsave(&cs->ev_lock, flags); |
1854 | tail = cs->ev_tail; | |
14fa73a7 | 1855 | if (tail == head) { |
9d4bee2b | 1856 | if (!cs->commands_pending) |
14fa73a7 HL |
1857 | break; |
1858 | continue; | |
1859 | } | |
1860 | } | |
1861 | ||
1862 | ev = cs->events + head; | |
1863 | was_busy = cs->cur_at_seq != SEQ_NONE; | |
69049cc8 | 1864 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1865 | process_event(cs, ev); |
69049cc8 | 1866 | spin_lock_irqsave(&cs->ev_lock, flags); |
14fa73a7 HL |
1867 | kfree(ev->ptr); |
1868 | ev->ptr = NULL; | |
1869 | if (was_busy && cs->cur_at_seq == SEQ_NONE) | |
1870 | check_flags = 1; | |
1871 | ||
1872 | head = (head + 1) % MAX_EVENTS; | |
69049cc8 | 1873 | cs->ev_head = head; |
14fa73a7 HL |
1874 | } |
1875 | ||
69049cc8 TS |
1876 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
1877 | ||
14fa73a7 | 1878 | if (i == 2 * MAX_EVENTS) { |
784d5858 TS |
1879 | dev_err(cs->dev, |
1880 | "infinite loop in process_events; aborting.\n"); | |
14fa73a7 HL |
1881 | } |
1882 | } | |
1883 | ||
1884 | /* tasklet scheduled on any event received from the Gigaset device | |
1885 | * parameter: | |
1886 | * data ISDN controller state structure | |
1887 | */ | |
1888 | void gigaset_handle_event(unsigned long data) | |
1889 | { | |
1890 | struct cardstate *cs = (struct cardstate *) data; | |
1891 | ||
14fa73a7 | 1892 | /* handle incoming data on control/common channel */ |
9d4bee2b | 1893 | if (cs->inbuf->head != cs->inbuf->tail) { |
784d5858 | 1894 | gig_dbg(DEBUG_INTR, "processing new data"); |
14fa73a7 HL |
1895 | cs->ops->handle_input(cs->inbuf); |
1896 | } | |
1897 | ||
1898 | process_events(cs); | |
1899 | } |