Commit | Line | Data |
---|---|---|
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 | ||
4656e0a3 TS |
392 | /* check for and remove fixed string prefix |
393 | * If s starts with prefix terminated by a non-alphanumeric character, | |
394 | * return pointer to the first character after that, otherwise return NULL. | |
395 | */ | |
396 | static char *skip_prefix(char *s, const char *prefix) | |
397 | { | |
398 | while (*prefix) | |
399 | if (*s++ != *prefix++) | |
400 | return NULL; | |
401 | if (isalnum(*s)) | |
402 | return NULL; | |
403 | return s; | |
404 | } | |
405 | ||
6bf50114 TS |
406 | /* queue event with CID */ |
407 | static void add_cid_event(struct cardstate *cs, int cid, int type, | |
408 | void *ptr, int parameter) | |
409 | { | |
410 | unsigned long flags; | |
411 | unsigned next, tail; | |
412 | struct event_t *event; | |
413 | ||
414 | gig_dbg(DEBUG_EVENT, "queueing event %d for cid %d", type, cid); | |
415 | ||
416 | spin_lock_irqsave(&cs->ev_lock, flags); | |
417 | ||
418 | tail = cs->ev_tail; | |
419 | next = (tail + 1) % MAX_EVENTS; | |
420 | if (unlikely(next == cs->ev_head)) { | |
421 | dev_err(cs->dev, "event queue full\n"); | |
422 | kfree(ptr); | |
423 | } else { | |
424 | event = cs->events + tail; | |
425 | event->type = type; | |
426 | event->cid = cid; | |
427 | event->ptr = ptr; | |
428 | event->arg = NULL; | |
429 | event->parameter = parameter; | |
430 | event->at_state = NULL; | |
431 | cs->ev_tail = next; | |
432 | } | |
433 | ||
434 | spin_unlock_irqrestore(&cs->ev_lock, flags); | |
435 | } | |
436 | ||
1cec9727 TS |
437 | /** |
438 | * gigaset_handle_modem_response() - process received modem response | |
439 | * @cs: device descriptor structure. | |
440 | * | |
441 | * Called by asyncdata/isocdata if a block of data received from the | |
442 | * device must be processed as a modem command response. The data is | |
443 | * already in the cs structure. | |
14fa73a7 HL |
444 | */ |
445 | void gigaset_handle_modem_response(struct cardstate *cs) | |
446 | { | |
4656e0a3 | 447 | char *eoc, *psep, *ptr; |
35dc8457 | 448 | const struct resp_type_t *rt; |
50e4fe91 | 449 | const struct zsau_resp_t *zr; |
6bf50114 | 450 | int cid, parameter; |
4656e0a3 | 451 | u8 type, value; |
14fa73a7 | 452 | |
4df1e525 | 453 | if (!cs->cbytes) { |
14fa73a7 | 454 | /* ignore additional LFs/CRs (M10x config mode or cx100) */ |
63b203b4 | 455 | gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[0]); |
14fa73a7 HL |
456 | return; |
457 | } | |
4df1e525 TS |
458 | cs->respdata[cs->cbytes] = 0; |
459 | ||
14fa73a7 | 460 | if (cs->at_state.getstring) { |
4df1e525 | 461 | /* state machine wants next line verbatim */ |
14fa73a7 | 462 | cs->at_state.getstring = 0; |
4df1e525 TS |
463 | ptr = kstrdup(cs->respdata, GFP_ATOMIC); |
464 | gig_dbg(DEBUG_EVENT, "string==%s", ptr ? ptr : "NULL"); | |
465 | add_cid_event(cs, 0, RSP_STRING, ptr, 0); | |
466 | return; | |
467 | } | |
14fa73a7 | 468 | |
4656e0a3 TS |
469 | /* look up response type */ |
470 | for (rt = resp_type; rt->response; ++rt) { | |
471 | eoc = skip_prefix(cs->respdata, rt->response); | |
472 | if (eoc) | |
473 | break; | |
474 | } | |
475 | if (!rt->response) { | |
476 | add_cid_event(cs, 0, RSP_NONE, NULL, 0); | |
477 | gig_dbg(DEBUG_EVENT, "unknown modem response: '%s'\n", | |
478 | cs->respdata); | |
479 | return; | |
480 | } | |
481 | ||
d93187eb TS |
482 | /* check for CID */ |
483 | psep = strrchr(cs->respdata, ';'); | |
484 | if (psep && | |
485 | !kstrtoint(psep + 1, 10, &cid) && | |
486 | cid >= 1 && cid <= 65535) { | |
487 | /* valid CID: chop it off */ | |
488 | *psep = 0; | |
489 | } else { | |
490 | /* no valid CID: leave unchanged */ | |
491 | cid = 0; | |
492 | } | |
493 | ||
4656e0a3 | 494 | gig_dbg(DEBUG_EVENT, "CMD received: %s", cs->respdata); |
d93187eb TS |
495 | if (cid) |
496 | gig_dbg(DEBUG_EVENT, "CID: %d", cid); | |
4df1e525 | 497 | |
4656e0a3 TS |
498 | switch (rt->type) { |
499 | case RT_NOTHING: | |
500 | /* check parameter separator */ | |
501 | if (*eoc) | |
502 | goto bad_param; /* extra parameter */ | |
503 | ||
504 | add_cid_event(cs, cid, rt->resp_code, NULL, 0); | |
505 | break; | |
506 | ||
507 | case RT_RING: | |
508 | /* check parameter separator */ | |
509 | if (!*eoc) | |
510 | eoc = NULL; /* no parameter */ | |
511 | else if (*eoc++ != ',') | |
512 | goto bad_param; | |
513 | ||
514 | add_cid_event(cs, 0, rt->resp_code, NULL, cid); | |
515 | ||
516 | /* process parameters as individual responses */ | |
517 | while (eoc) { | |
518 | /* look up parameter type */ | |
519 | psep = NULL; | |
520 | for (rt = resp_type; rt->response; ++rt) { | |
521 | psep = skip_prefix(eoc, rt->response); | |
522 | if (psep) | |
50e4fe91 | 523 | break; |
4656e0a3 TS |
524 | } |
525 | ||
526 | /* all legal parameters are of type RT_STRING */ | |
527 | if (!psep || rt->type != RT_STRING) { | |
784d5858 | 528 | dev_warn(cs->dev, |
4656e0a3 TS |
529 | "illegal RING parameter: '%s'\n", |
530 | eoc); | |
531 | return; | |
14fa73a7 | 532 | } |
4656e0a3 TS |
533 | |
534 | /* skip parameter value separator */ | |
535 | if (*psep++ != '=') | |
536 | goto bad_param; | |
537 | ||
538 | /* look up end of parameter */ | |
539 | eoc = strchr(psep, ','); | |
540 | if (eoc) | |
541 | *eoc++ = 0; | |
542 | ||
543 | /* retrieve parameter value */ | |
544 | ptr = kstrdup(psep, GFP_ATOMIC); | |
545 | ||
546 | /* queue event */ | |
4df1e525 | 547 | add_cid_event(cs, cid, rt->resp_code, ptr, 0); |
14fa73a7 | 548 | } |
4656e0a3 | 549 | break; |
14fa73a7 | 550 | |
4656e0a3 TS |
551 | case RT_ZSAU: |
552 | /* check parameter separator */ | |
553 | if (!*eoc) { | |
554 | /* no parameter */ | |
555 | add_cid_event(cs, cid, rt->resp_code, NULL, ZSAU_NONE); | |
14fa73a7 | 556 | break; |
4656e0a3 TS |
557 | } |
558 | if (*eoc++ != '=') | |
559 | goto bad_param; | |
560 | ||
561 | /* look up parameter value */ | |
562 | for (zr = zsau_resp; zr->str; ++zr) | |
563 | if (!strcmp(eoc, zr->str)) | |
564 | break; | |
565 | if (!zr->str) | |
566 | goto bad_param; | |
567 | ||
568 | add_cid_event(cs, cid, rt->resp_code, NULL, zr->code); | |
569 | break; | |
570 | ||
571 | case RT_STRING: | |
572 | /* check parameter separator */ | |
573 | if (*eoc++ != '=') | |
574 | goto bad_param; | |
575 | ||
576 | /* retrieve parameter value */ | |
577 | ptr = kstrdup(eoc, GFP_ATOMIC); | |
578 | ||
579 | /* queue event */ | |
580 | add_cid_event(cs, cid, rt->resp_code, ptr, 0); | |
581 | break; | |
582 | ||
583 | case RT_ZCAU: | |
584 | /* check parameter separators */ | |
585 | if (*eoc++ != '=') | |
586 | goto bad_param; | |
587 | psep = strchr(eoc, ','); | |
588 | if (!psep) | |
589 | goto bad_param; | |
590 | *psep++ = 0; | |
591 | ||
592 | /* decode parameter values */ | |
593 | if (kstrtou8(eoc, 16, &type) || kstrtou8(psep, 16, &value)) { | |
594 | *--psep = ','; | |
595 | goto bad_param; | |
596 | } | |
597 | parameter = (type << 8) | value; | |
598 | ||
599 | add_cid_event(cs, cid, rt->resp_code, NULL, parameter); | |
600 | break; | |
601 | ||
602 | case RT_NUMBER: | |
603 | /* check parameter separator */ | |
604 | if (*eoc++ != '=') | |
605 | goto bad_param; | |
14fa73a7 | 606 | |
4656e0a3 TS |
607 | /* decode parameter value */ |
608 | if (kstrtoint(eoc, 10, ¶meter)) | |
609 | goto bad_param; | |
610 | ||
611 | /* special case ZDLE: set flag before queueing event */ | |
612 | if (rt->resp_code == RSP_ZDLE) | |
613 | cs->dle = parameter; | |
614 | ||
615 | add_cid_event(cs, cid, rt->resp_code, NULL, parameter); | |
616 | break; | |
617 | ||
618 | bad_param: | |
619 | /* parameter unexpected, incomplete or malformed */ | |
620 | dev_warn(cs->dev, "bad parameter in response '%s'\n", | |
621 | cs->respdata); | |
622 | add_cid_event(cs, cid, rt->resp_code, NULL, -1); | |
623 | break; | |
624 | ||
625 | default: | |
626 | dev_err(cs->dev, "%s: internal error on '%s'\n", | |
627 | __func__, cs->respdata); | |
628 | } | |
14fa73a7 HL |
629 | } |
630 | EXPORT_SYMBOL_GPL(gigaset_handle_modem_response); | |
631 | ||
b8324f94 | 632 | /* disconnect_nobc |
14fa73a7 | 633 | * process closing of connection associated with given AT state structure |
b8324f94 | 634 | * without B channel |
14fa73a7 | 635 | */ |
b8324f94 TS |
636 | static void disconnect_nobc(struct at_state_t **at_state_p, |
637 | struct cardstate *cs) | |
14fa73a7 HL |
638 | { |
639 | unsigned long flags; | |
14fa73a7 | 640 | |
69049cc8 TS |
641 | spin_lock_irqsave(&cs->lock, flags); |
642 | ++(*at_state_p)->seq_index; | |
14fa73a7 HL |
643 | |
644 | /* revert to selected idle mode */ | |
69049cc8 | 645 | if (!cs->cidmode) { |
14fa73a7 | 646 | cs->at_state.pending_commands |= PC_UMMODE; |
1528b18f | 647 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
9d4bee2b | 648 | cs->commands_pending = 1; |
14fa73a7 HL |
649 | } |
650 | ||
b8324f94 TS |
651 | /* check for and deallocate temporary AT state */ |
652 | if (!list_empty(&(*at_state_p)->list)) { | |
14fa73a7 HL |
653 | list_del(&(*at_state_p)->list); |
654 | kfree(*at_state_p); | |
655 | *at_state_p = NULL; | |
b8324f94 TS |
656 | } |
657 | ||
658 | spin_unlock_irqrestore(&cs->lock, flags); | |
659 | } | |
660 | ||
661 | /* disconnect_bc | |
662 | * process closing of connection associated with given AT state structure | |
663 | * and B channel | |
664 | */ | |
665 | static void disconnect_bc(struct at_state_t *at_state, | |
666 | struct cardstate *cs, struct bc_state *bcs) | |
667 | { | |
668 | unsigned long flags; | |
669 | ||
670 | spin_lock_irqsave(&cs->lock, flags); | |
671 | ++at_state->seq_index; | |
672 | ||
673 | /* revert to selected idle mode */ | |
674 | if (!cs->cidmode) { | |
675 | cs->at_state.pending_commands |= PC_UMMODE; | |
676 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); | |
677 | cs->commands_pending = 1; | |
678 | } | |
679 | spin_unlock_irqrestore(&cs->lock, flags); | |
680 | ||
681 | /* invoke hardware specific handler */ | |
682 | cs->ops->close_bchannel(bcs); | |
683 | ||
684 | /* notify LL */ | |
685 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
686 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
687 | gigaset_isdn_hupD(bcs); | |
14fa73a7 HL |
688 | } |
689 | } | |
690 | ||
691 | /* get_free_channel | |
692 | * get a free AT state structure: either one of those associated with the | |
693 | * B channels of the Gigaset device, or if none of those is available, | |
694 | * a newly allocated one with bcs=NULL | |
b8324f94 | 695 | * The structure should be freed by calling disconnect_nobc() after use. |
14fa73a7 HL |
696 | */ |
697 | static inline struct at_state_t *get_free_channel(struct cardstate *cs, | |
784d5858 | 698 | int cid) |
14fa73a7 | 699 | /* cids: >0: siemens-cid |
f86936ff TS |
700 | * 0: without cid |
701 | * -1: no cid assigned yet | |
702 | */ | |
14fa73a7 HL |
703 | { |
704 | unsigned long flags; | |
705 | int i; | |
706 | struct at_state_t *ret; | |
707 | ||
708 | for (i = 0; i < cs->channels; ++i) | |
81fa7b82 | 709 | if (gigaset_get_channel(cs->bcs + i) >= 0) { |
14fa73a7 HL |
710 | ret = &cs->bcs[i].at_state; |
711 | ret->cid = cid; | |
712 | return ret; | |
713 | } | |
714 | ||
715 | spin_lock_irqsave(&cs->lock, flags); | |
716 | ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC); | |
717 | if (ret) { | |
718 | gigaset_at_init(ret, NULL, cs, cid); | |
719 | list_add(&ret->list, &cs->temp_at_states); | |
720 | } | |
721 | spin_unlock_irqrestore(&cs->lock, flags); | |
722 | return ret; | |
723 | } | |
724 | ||
725 | static void init_failed(struct cardstate *cs, int mode) | |
726 | { | |
727 | int i; | |
728 | struct at_state_t *at_state; | |
729 | ||
730 | cs->at_state.pending_commands &= ~PC_INIT; | |
9d4bee2b TS |
731 | cs->mode = mode; |
732 | cs->mstate = MS_UNINITIALIZED; | |
14fa73a7 HL |
733 | gigaset_free_channels(cs); |
734 | for (i = 0; i < cs->channels; ++i) { | |
735 | at_state = &cs->bcs[i].at_state; | |
736 | if (at_state->pending_commands & PC_CID) { | |
737 | at_state->pending_commands &= ~PC_CID; | |
738 | at_state->pending_commands |= PC_NOCID; | |
9d4bee2b | 739 | cs->commands_pending = 1; |
14fa73a7 HL |
740 | } |
741 | } | |
742 | } | |
743 | ||
744 | static void schedule_init(struct cardstate *cs, int state) | |
745 | { | |
746 | if (cs->at_state.pending_commands & PC_INIT) { | |
1528b18f | 747 | gig_dbg(DEBUG_EVENT, "not scheduling PC_INIT again"); |
14fa73a7 HL |
748 | return; |
749 | } | |
9d4bee2b TS |
750 | cs->mstate = state; |
751 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
752 | gigaset_block_channels(cs); |
753 | cs->at_state.pending_commands |= PC_INIT; | |
1528b18f | 754 | gig_dbg(DEBUG_EVENT, "Scheduling PC_INIT"); |
9d4bee2b | 755 | cs->commands_pending = 1; |
14fa73a7 HL |
756 | } |
757 | ||
63b203b4 TS |
758 | /* send an AT command |
759 | * adding the "AT" prefix, cid and DLE encapsulation as appropriate | |
760 | */ | |
761 | static void send_command(struct cardstate *cs, const char *cmd, | |
762 | struct at_state_t *at_state) | |
14fa73a7 | 763 | { |
63b203b4 | 764 | int cid = at_state->cid; |
e3628dd1 TS |
765 | struct cmdbuf_t *cb; |
766 | size_t buflen; | |
14fa73a7 | 767 | |
e3628dd1 | 768 | buflen = strlen(cmd) + 12; /* DLE ( A T 1 2 3 4 5 <cmd> DLE ) \0 */ |
63b203b4 | 769 | cb = kmalloc(sizeof(struct cmdbuf_t) + buflen, GFP_ATOMIC); |
e3628dd1 TS |
770 | if (!cb) { |
771 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
784d5858 TS |
772 | return; |
773 | } | |
e3628dd1 TS |
774 | if (cid > 0 && cid <= 65535) |
775 | cb->len = snprintf(cb->buf, buflen, | |
63b203b4 | 776 | cs->dle ? "\020(AT%d%s\020)" : "AT%d%s", |
475be4d8 | 777 | cid, cmd); |
e3628dd1 TS |
778 | else |
779 | cb->len = snprintf(cb->buf, buflen, | |
63b203b4 | 780 | cs->dle ? "\020(AT%s\020)" : "AT%s", |
475be4d8 | 781 | cmd); |
e3628dd1 TS |
782 | cb->offset = 0; |
783 | cb->next = NULL; | |
784 | cb->wake_tasklet = NULL; | |
785 | cs->ops->write_cmd(cs, cb); | |
14fa73a7 HL |
786 | } |
787 | ||
788 | static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid) | |
789 | { | |
790 | struct at_state_t *at_state; | |
791 | int i; | |
792 | unsigned long flags; | |
793 | ||
794 | if (cid == 0) | |
795 | return &cs->at_state; | |
796 | ||
797 | for (i = 0; i < cs->channels; ++i) | |
798 | if (cid == cs->bcs[i].at_state.cid) | |
799 | return &cs->bcs[i].at_state; | |
800 | ||
801 | spin_lock_irqsave(&cs->lock, flags); | |
802 | ||
803 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
804 | if (cid == at_state->cid) { | |
805 | spin_unlock_irqrestore(&cs->lock, flags); | |
806 | return at_state; | |
807 | } | |
808 | ||
809 | spin_unlock_irqrestore(&cs->lock, flags); | |
810 | ||
811 | return NULL; | |
812 | } | |
813 | ||
814 | static void bchannel_down(struct bc_state *bcs) | |
815 | { | |
14fa73a7 HL |
816 | if (bcs->chstate & CHS_B_UP) { |
817 | bcs->chstate &= ~CHS_B_UP; | |
088ec0cc | 818 | gigaset_isdn_hupB(bcs); |
14fa73a7 HL |
819 | } |
820 | ||
821 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | |
822 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | |
088ec0cc | 823 | gigaset_isdn_hupD(bcs); |
14fa73a7 HL |
824 | } |
825 | ||
826 | gigaset_free_channel(bcs); | |
827 | ||
828 | gigaset_bcs_reinit(bcs); | |
829 | } | |
830 | ||
831 | static void bchannel_up(struct bc_state *bcs) | |
832 | { | |
14fa73a7 | 833 | if (bcs->chstate & CHS_B_UP) { |
784d5858 TS |
834 | dev_notice(bcs->cs->dev, "%s: B channel already up\n", |
835 | __func__); | |
14fa73a7 HL |
836 | return; |
837 | } | |
838 | ||
839 | bcs->chstate |= CHS_B_UP; | |
088ec0cc | 840 | gigaset_isdn_connB(bcs); |
14fa73a7 HL |
841 | } |
842 | ||
c35a87ff | 843 | static void start_dial(struct at_state_t *at_state, void *data, |
475be4d8 | 844 | unsigned seq_index) |
14fa73a7 HL |
845 | { |
846 | struct bc_state *bcs = at_state->bcs; | |
847 | struct cardstate *cs = at_state->cs; | |
088ec0cc | 848 | char **commands = data; |
69049cc8 | 849 | unsigned long flags; |
088ec0cc | 850 | int i; |
14fa73a7 HL |
851 | |
852 | bcs->chstate |= CHS_NOTIFY_LL; | |
14fa73a7 | 853 | |
69049cc8 TS |
854 | spin_lock_irqsave(&cs->lock, flags); |
855 | if (at_state->seq_index != seq_index) { | |
856 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 857 | goto error; |
69049cc8 TS |
858 | } |
859 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 860 | |
088ec0cc TS |
861 | for (i = 0; i < AT_NUM; ++i) { |
862 | kfree(bcs->commands[i]); | |
863 | bcs->commands[i] = commands[i]; | |
864 | } | |
14fa73a7 HL |
865 | |
866 | at_state->pending_commands |= PC_CID; | |
1528b18f | 867 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CID"); |
9d4bee2b | 868 | cs->commands_pending = 1; |
14fa73a7 HL |
869 | return; |
870 | ||
871 | error: | |
088ec0cc TS |
872 | for (i = 0; i < AT_NUM; ++i) { |
873 | kfree(commands[i]); | |
874 | commands[i] = NULL; | |
875 | } | |
14fa73a7 | 876 | at_state->pending_commands |= PC_NOCID; |
1528b18f | 877 | gig_dbg(DEBUG_EVENT, "Scheduling PC_NOCID"); |
9d4bee2b | 878 | cs->commands_pending = 1; |
14fa73a7 HL |
879 | return; |
880 | } | |
881 | ||
882 | static void start_accept(struct at_state_t *at_state) | |
883 | { | |
884 | struct cardstate *cs = at_state->cs; | |
088ec0cc TS |
885 | struct bc_state *bcs = at_state->bcs; |
886 | int i; | |
14fa73a7 | 887 | |
088ec0cc TS |
888 | for (i = 0; i < AT_NUM; ++i) { |
889 | kfree(bcs->commands[i]); | |
890 | bcs->commands[i] = NULL; | |
891 | } | |
14fa73a7 | 892 | |
088ec0cc TS |
893 | bcs->commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC); |
894 | bcs->commands[AT_ISO] = kmalloc(9, GFP_ATOMIC); | |
895 | if (!bcs->commands[AT_PROTO] || !bcs->commands[AT_ISO]) { | |
896 | dev_err(at_state->cs->dev, "out of memory\n"); | |
9d4bee2b | 897 | /* error reset */ |
14fa73a7 | 898 | at_state->pending_commands |= PC_HUP; |
1528b18f | 899 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 900 | cs->commands_pending = 1; |
088ec0cc | 901 | return; |
14fa73a7 | 902 | } |
088ec0cc TS |
903 | |
904 | snprintf(bcs->commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2); | |
905 | snprintf(bcs->commands[AT_ISO], 9, "^SISO=%u\r", bcs->channel + 1); | |
906 | ||
907 | at_state->pending_commands |= PC_ACCEPT; | |
1528b18f | 908 | gig_dbg(DEBUG_EVENT, "Scheduling PC_ACCEPT"); |
088ec0cc | 909 | cs->commands_pending = 1; |
14fa73a7 HL |
910 | } |
911 | ||
912 | static void do_start(struct cardstate *cs) | |
913 | { | |
914 | gigaset_free_channels(cs); | |
915 | ||
9d4bee2b | 916 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
917 | schedule_init(cs, MS_INIT); |
918 | ||
69049cc8 | 919 | cs->isdn_up = 1; |
088ec0cc | 920 | gigaset_isdn_start(cs); |
14fa73a7 HL |
921 | |
922 | cs->waiting = 0; | |
923 | wake_up(&cs->waitqueue); | |
924 | } | |
925 | ||
926 | static void finish_shutdown(struct cardstate *cs) | |
927 | { | |
9d4bee2b TS |
928 | if (cs->mstate != MS_LOCKED) { |
929 | cs->mstate = MS_UNINITIALIZED; | |
930 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
931 | } |
932 | ||
69049cc8 TS |
933 | /* Tell the LL that the device is not available .. */ |
934 | if (cs->isdn_up) { | |
935 | cs->isdn_up = 0; | |
088ec0cc | 936 | gigaset_isdn_stop(cs); |
69049cc8 TS |
937 | } |
938 | ||
63b203b4 | 939 | /* The rest is done by cleanup_cs() in process context. */ |
14fa73a7 HL |
940 | |
941 | cs->cmd_result = -ENODEV; | |
942 | cs->waiting = 0; | |
2869b23e | 943 | wake_up(&cs->waitqueue); |
14fa73a7 HL |
944 | } |
945 | ||
946 | static void do_shutdown(struct cardstate *cs) | |
947 | { | |
948 | gigaset_block_channels(cs); | |
949 | ||
9d4bee2b TS |
950 | if (cs->mstate == MS_READY) { |
951 | cs->mstate = MS_SHUTDOWN; | |
14fa73a7 | 952 | cs->at_state.pending_commands |= PC_SHUTDOWN; |
1528b18f | 953 | gig_dbg(DEBUG_EVENT, "Scheduling PC_SHUTDOWN"); |
9d4bee2b | 954 | cs->commands_pending = 1; |
14fa73a7 HL |
955 | } else |
956 | finish_shutdown(cs); | |
957 | } | |
958 | ||
959 | static void do_stop(struct cardstate *cs) | |
960 | { | |
69049cc8 TS |
961 | unsigned long flags; |
962 | ||
963 | spin_lock_irqsave(&cs->lock, flags); | |
964 | cs->connected = 0; | |
965 | spin_unlock_irqrestore(&cs->lock, flags); | |
966 | ||
14fa73a7 HL |
967 | do_shutdown(cs); |
968 | } | |
969 | ||
970 | /* Entering cid mode or getting a cid failed: | |
971 | * try to initialize the device and try again. | |
972 | * | |
973 | * channel >= 0: getting cid for the channel failed | |
974 | * channel < 0: entering cid mode failed | |
975 | * | |
81fa7b82 | 976 | * returns 0 on success, <0 on failure |
14fa73a7 HL |
977 | */ |
978 | static int reinit_and_retry(struct cardstate *cs, int channel) | |
979 | { | |
980 | int i; | |
981 | ||
982 | if (--cs->retry_count <= 0) | |
81fa7b82 | 983 | return -EFAULT; |
14fa73a7 HL |
984 | |
985 | for (i = 0; i < cs->channels; ++i) | |
986 | if (cs->bcs[i].at_state.cid > 0) | |
81fa7b82 | 987 | return -EBUSY; |
14fa73a7 HL |
988 | |
989 | if (channel < 0) | |
784d5858 | 990 | dev_warn(cs->dev, |
475be4d8 | 991 | "Could not enter cid mode. Reinit device and try again.\n"); |
14fa73a7 | 992 | else { |
784d5858 | 993 | dev_warn(cs->dev, |
475be4d8 | 994 | "Could not get a call id. Reinit device and try again.\n"); |
14fa73a7 HL |
995 | cs->bcs[channel].at_state.pending_commands |= PC_CID; |
996 | } | |
997 | schedule_init(cs, MS_INIT); | |
81fa7b82 | 998 | return 0; |
14fa73a7 HL |
999 | } |
1000 | ||
1001 | static int at_state_invalid(struct cardstate *cs, | |
784d5858 | 1002 | struct at_state_t *test_ptr) |
14fa73a7 HL |
1003 | { |
1004 | unsigned long flags; | |
1005 | unsigned channel; | |
1006 | struct at_state_t *at_state; | |
1007 | int retval = 0; | |
1008 | ||
1009 | spin_lock_irqsave(&cs->lock, flags); | |
1010 | ||
1011 | if (test_ptr == &cs->at_state) | |
1012 | goto exit; | |
1013 | ||
1014 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
1015 | if (at_state == test_ptr) | |
1016 | goto exit; | |
1017 | ||
1018 | for (channel = 0; channel < cs->channels; ++channel) | |
1019 | if (&cs->bcs[channel].at_state == test_ptr) | |
1020 | goto exit; | |
1021 | ||
1022 | retval = 1; | |
1023 | exit: | |
1024 | spin_unlock_irqrestore(&cs->lock, flags); | |
1025 | return retval; | |
1026 | } | |
1027 | ||
1028 | static void handle_icall(struct cardstate *cs, struct bc_state *bcs, | |
63b203b4 | 1029 | struct at_state_t *at_state) |
14fa73a7 HL |
1030 | { |
1031 | int retval; | |
14fa73a7 HL |
1032 | |
1033 | retval = gigaset_isdn_icall(at_state); | |
1034 | switch (retval) { | |
1035 | case ICALL_ACCEPT: | |
1036 | break; | |
1037 | default: | |
784d5858 | 1038 | dev_err(cs->dev, "internal error: disposition=%d\n", retval); |
14fa73a7 HL |
1039 | /* --v-- fall through --v-- */ |
1040 | case ICALL_IGNORE: | |
1041 | case ICALL_REJECT: | |
1042 | /* hang up actively | |
1043 | * Device doc says that would reject the call. | |
1044 | * In fact it doesn't. | |
1045 | */ | |
1046 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1047 | cs->commands_pending = 1; |
14fa73a7 HL |
1048 | break; |
1049 | } | |
1050 | } | |
1051 | ||
1052 | static int do_lock(struct cardstate *cs) | |
1053 | { | |
1054 | int mode; | |
1055 | int i; | |
1056 | ||
9d4bee2b | 1057 | switch (cs->mstate) { |
14fa73a7 HL |
1058 | case MS_UNINITIALIZED: |
1059 | case MS_READY: | |
1060 | if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) || | |
1061 | cs->at_state.pending_commands) | |
1062 | return -EBUSY; | |
1063 | ||
1064 | for (i = 0; i < cs->channels; ++i) | |
1065 | if (cs->bcs[i].at_state.pending_commands) | |
1066 | return -EBUSY; | |
1067 | ||
81fa7b82 | 1068 | if (gigaset_get_channels(cs) < 0) |
14fa73a7 HL |
1069 | return -EBUSY; |
1070 | ||
1071 | break; | |
1072 | case MS_LOCKED: | |
14fa73a7 HL |
1073 | break; |
1074 | default: | |
1075 | return -EBUSY; | |
1076 | } | |
1077 | ||
9d4bee2b TS |
1078 | mode = cs->mode; |
1079 | cs->mstate = MS_LOCKED; | |
1080 | cs->mode = M_UNKNOWN; | |
14fa73a7 HL |
1081 | |
1082 | return mode; | |
1083 | } | |
1084 | ||
1085 | static int do_unlock(struct cardstate *cs) | |
1086 | { | |
9d4bee2b | 1087 | if (cs->mstate != MS_LOCKED) |
14fa73a7 HL |
1088 | return -EINVAL; |
1089 | ||
9d4bee2b TS |
1090 | cs->mstate = MS_UNINITIALIZED; |
1091 | cs->mode = M_UNKNOWN; | |
14fa73a7 | 1092 | gigaset_free_channels(cs); |
69049cc8 | 1093 | if (cs->connected) |
14fa73a7 HL |
1094 | schedule_init(cs, MS_INIT); |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | static void do_action(int action, struct cardstate *cs, | |
1100 | struct bc_state *bcs, | |
1101 | struct at_state_t **p_at_state, char **pp_command, | |
1102 | int *p_genresp, int *p_resp_code, | |
1103 | struct event_t *ev) | |
1104 | { | |
1105 | struct at_state_t *at_state = *p_at_state; | |
b8324f94 | 1106 | struct bc_state *bcs2; |
14fa73a7 HL |
1107 | unsigned long flags; |
1108 | ||
1109 | int channel; | |
1110 | ||
1111 | unsigned char *s, *e; | |
1112 | int i; | |
1113 | unsigned long val; | |
1114 | ||
1115 | switch (action) { | |
1116 | case ACT_NOTHING: | |
1117 | break; | |
1118 | case ACT_TIMEOUT: | |
1119 | at_state->waiting = 1; | |
1120 | break; | |
1121 | case ACT_INIT: | |
14fa73a7 HL |
1122 | cs->at_state.pending_commands &= ~PC_INIT; |
1123 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1124 | cs->mode = M_UNIMODEM; |
69049cc8 TS |
1125 | spin_lock_irqsave(&cs->lock, flags); |
1126 | if (!cs->cidmode) { | |
1127 | spin_unlock_irqrestore(&cs->lock, flags); | |
14fa73a7 | 1128 | gigaset_free_channels(cs); |
9d4bee2b | 1129 | cs->mstate = MS_READY; |
14fa73a7 HL |
1130 | break; |
1131 | } | |
69049cc8 | 1132 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1133 | cs->at_state.pending_commands |= PC_CIDMODE; |
1528b18f | 1134 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1135 | cs->commands_pending = 1; |
14fa73a7 HL |
1136 | break; |
1137 | case ACT_FAILINIT: | |
784d5858 | 1138 | dev_warn(cs->dev, "Could not initialize the device.\n"); |
14fa73a7 HL |
1139 | cs->dle = 0; |
1140 | init_failed(cs, M_UNKNOWN); | |
1141 | cs->cur_at_seq = SEQ_NONE; | |
1142 | break; | |
1143 | case ACT_CONFIGMODE: | |
1144 | init_failed(cs, M_CONFIG); | |
1145 | cs->cur_at_seq = SEQ_NONE; | |
1146 | break; | |
1147 | case ACT_SETDLE1: | |
1148 | cs->dle = 1; | |
1149 | /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */ | |
1150 | cs->inbuf[0].inputstate &= | |
1151 | ~(INS_command | INS_DLE_command); | |
1152 | break; | |
1153 | case ACT_SETDLE0: | |
1154 | cs->dle = 0; | |
1155 | cs->inbuf[0].inputstate = | |
1156 | (cs->inbuf[0].inputstate & ~INS_DLE_command) | |
1157 | | INS_command; | |
1158 | break; | |
1159 | case ACT_CMODESET: | |
9d4bee2b | 1160 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 | 1161 | gigaset_free_channels(cs); |
9d4bee2b | 1162 | cs->mstate = MS_READY; |
14fa73a7 | 1163 | } |
9d4bee2b | 1164 | cs->mode = M_CID; |
14fa73a7 HL |
1165 | cs->cur_at_seq = SEQ_NONE; |
1166 | break; | |
1167 | case ACT_UMODESET: | |
9d4bee2b | 1168 | cs->mode = M_UNIMODEM; |
14fa73a7 HL |
1169 | cs->cur_at_seq = SEQ_NONE; |
1170 | break; | |
1171 | case ACT_FAILCMODE: | |
1172 | cs->cur_at_seq = SEQ_NONE; | |
9d4bee2b | 1173 | if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1174 | init_failed(cs, M_UNKNOWN); |
1175 | break; | |
1176 | } | |
81fa7b82 | 1177 | if (reinit_and_retry(cs, -1) < 0) |
14fa73a7 HL |
1178 | schedule_init(cs, MS_RECOVER); |
1179 | break; | |
1180 | case ACT_FAILUMODE: | |
1181 | cs->cur_at_seq = SEQ_NONE; | |
1182 | schedule_init(cs, MS_RECOVER); | |
1183 | break; | |
1184 | case ACT_HUPMODEM: | |
1185 | /* send "+++" (hangup in unimodem mode) */ | |
e3628dd1 TS |
1186 | if (cs->connected) { |
1187 | struct cmdbuf_t *cb; | |
1188 | ||
1189 | cb = kmalloc(sizeof(struct cmdbuf_t) + 3, GFP_ATOMIC); | |
1190 | if (!cb) { | |
1191 | dev_err(cs->dev, "%s: out of memory\n", | |
1192 | __func__); | |
1193 | return; | |
1194 | } | |
1195 | memcpy(cb->buf, "+++", 3); | |
1196 | cb->len = 3; | |
1197 | cb->offset = 0; | |
1198 | cb->next = NULL; | |
1199 | cb->wake_tasklet = NULL; | |
1200 | cs->ops->write_cmd(cs, cb); | |
1201 | } | |
14fa73a7 HL |
1202 | break; |
1203 | case ACT_RING: | |
1204 | /* get fresh AT state structure for new CID */ | |
b8324f94 TS |
1205 | at_state = get_free_channel(cs, ev->parameter); |
1206 | if (!at_state) { | |
784d5858 | 1207 | dev_warn(cs->dev, |
475be4d8 | 1208 | "RING ignored: could not allocate channel structure\n"); |
14fa73a7 HL |
1209 | break; |
1210 | } | |
1211 | ||
1212 | /* initialize AT state structure | |
1213 | * note that bcs may be NULL if no B channel is free | |
1214 | */ | |
b8324f94 | 1215 | at_state->ConState = 700; |
3a0a3a6b | 1216 | for (i = 0; i < STR_NUM; ++i) { |
b8324f94 TS |
1217 | kfree(at_state->str_var[i]); |
1218 | at_state->str_var[i] = NULL; | |
3a0a3a6b | 1219 | } |
b8324f94 | 1220 | at_state->int_var[VAR_ZCTP] = -1; |
14fa73a7 HL |
1221 | |
1222 | spin_lock_irqsave(&cs->lock, flags); | |
b8324f94 TS |
1223 | at_state->timer_expires = RING_TIMEOUT; |
1224 | at_state->timer_active = 1; | |
14fa73a7 HL |
1225 | spin_unlock_irqrestore(&cs->lock, flags); |
1226 | break; | |
1227 | case ACT_ICALL: | |
63b203b4 | 1228 | handle_icall(cs, bcs, at_state); |
14fa73a7 HL |
1229 | break; |
1230 | case ACT_FAILSDOWN: | |
784d5858 | 1231 | dev_warn(cs->dev, "Could not shut down the device.\n"); |
14fa73a7 HL |
1232 | /* fall through */ |
1233 | case ACT_FAKESDOWN: | |
1234 | case ACT_SDOWN: | |
1235 | cs->cur_at_seq = SEQ_NONE; | |
1236 | finish_shutdown(cs); | |
1237 | break; | |
1238 | case ACT_CONNECT: | |
1239 | if (cs->onechannel) { | |
1240 | at_state->pending_commands |= PC_DLE1; | |
9d4bee2b | 1241 | cs->commands_pending = 1; |
14fa73a7 HL |
1242 | break; |
1243 | } | |
1244 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1245 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1246 | cs->ops->init_bchannel(bcs); |
1247 | break; | |
1248 | case ACT_DLE1: | |
1249 | cs->cur_at_seq = SEQ_NONE; | |
1250 | bcs = cs->bcs + cs->curchannel; | |
1251 | ||
1252 | bcs->chstate |= CHS_D_UP; | |
088ec0cc | 1253 | gigaset_isdn_connD(bcs); |
14fa73a7 HL |
1254 | cs->ops->init_bchannel(bcs); |
1255 | break; | |
1256 | case ACT_FAKEHUP: | |
1257 | at_state->int_var[VAR_ZSAU] = ZSAU_NULL; | |
1258 | /* fall through */ | |
1259 | case ACT_DISCONNECT: | |
1260 | cs->cur_at_seq = SEQ_NONE; | |
1261 | at_state->cid = -1; | |
b8324f94 TS |
1262 | if (!bcs) { |
1263 | disconnect_nobc(p_at_state, cs); | |
1264 | } else if (cs->onechannel && cs->dle) { | |
14fa73a7 HL |
1265 | /* Check for other open channels not needed: |
1266 | * DLE only used for M10x with one B channel. | |
1267 | */ | |
1268 | at_state->pending_commands |= PC_DLE0; | |
9d4bee2b | 1269 | cs->commands_pending = 1; |
b8324f94 TS |
1270 | } else { |
1271 | disconnect_bc(at_state, cs, bcs); | |
1272 | } | |
14fa73a7 HL |
1273 | break; |
1274 | case ACT_FAKEDLE0: | |
1275 | at_state->int_var[VAR_ZDLE] = 0; | |
1276 | cs->dle = 0; | |
1277 | /* fall through */ | |
1278 | case ACT_DLE0: | |
1279 | cs->cur_at_seq = SEQ_NONE; | |
b8324f94 TS |
1280 | bcs2 = cs->bcs + cs->curchannel; |
1281 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1282 | break; |
1283 | case ACT_ABORTHUP: | |
1284 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 | 1285 | dev_warn(cs->dev, "Could not hang up.\n"); |
14fa73a7 | 1286 | at_state->cid = -1; |
b8324f94 TS |
1287 | if (!bcs) |
1288 | disconnect_nobc(p_at_state, cs); | |
1289 | else if (cs->onechannel) | |
14fa73a7 | 1290 | at_state->pending_commands |= PC_DLE0; |
698e3ed9 | 1291 | else |
b8324f94 | 1292 | disconnect_bc(at_state, cs, bcs); |
14fa73a7 HL |
1293 | schedule_init(cs, MS_RECOVER); |
1294 | break; | |
1295 | case ACT_FAILDLE0: | |
1296 | cs->cur_at_seq = SEQ_NONE; | |
5dcd7d84 TS |
1297 | dev_warn(cs->dev, "Error leaving DLE mode.\n"); |
1298 | cs->dle = 0; | |
b8324f94 TS |
1299 | bcs2 = cs->bcs + cs->curchannel; |
1300 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1301 | schedule_init(cs, MS_RECOVER); |
1302 | break; | |
1303 | case ACT_FAILDLE1: | |
1304 | cs->cur_at_seq = SEQ_NONE; | |
784d5858 TS |
1305 | dev_warn(cs->dev, |
1306 | "Could not enter DLE mode. Trying to hang up.\n"); | |
14fa73a7 HL |
1307 | channel = cs->curchannel; |
1308 | cs->bcs[channel].at_state.pending_commands |= PC_HUP; | |
9d4bee2b | 1309 | cs->commands_pending = 1; |
14fa73a7 HL |
1310 | break; |
1311 | ||
1312 | case ACT_CID: /* got cid; start dialing */ | |
1313 | cs->cur_at_seq = SEQ_NONE; | |
1314 | channel = cs->curchannel; | |
1315 | if (ev->parameter > 0 && ev->parameter <= 65535) { | |
1316 | cs->bcs[channel].at_state.cid = ev->parameter; | |
1317 | cs->bcs[channel].at_state.pending_commands |= | |
1318 | PC_DIAL; | |
9d4bee2b | 1319 | cs->commands_pending = 1; |
14fa73a7 HL |
1320 | break; |
1321 | } | |
63b203b4 | 1322 | /* bad cid: fall through */ |
14fa73a7 HL |
1323 | case ACT_FAILCID: |
1324 | cs->cur_at_seq = SEQ_NONE; | |
1325 | channel = cs->curchannel; | |
81fa7b82 | 1326 | if (reinit_and_retry(cs, channel) < 0) { |
784d5858 TS |
1327 | dev_warn(cs->dev, |
1328 | "Could not get a call ID. Cannot dial.\n"); | |
b8324f94 TS |
1329 | bcs2 = cs->bcs + channel; |
1330 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1331 | } |
1332 | break; | |
1333 | case ACT_ABORTCID: | |
1334 | cs->cur_at_seq = SEQ_NONE; | |
b8324f94 TS |
1335 | bcs2 = cs->bcs + cs->curchannel; |
1336 | disconnect_bc(&bcs2->at_state, cs, bcs2); | |
14fa73a7 HL |
1337 | break; |
1338 | ||
1339 | case ACT_DIALING: | |
1340 | case ACT_ACCEPTED: | |
1341 | cs->cur_at_seq = SEQ_NONE; | |
1342 | break; | |
1343 | ||
c35a87ff | 1344 | case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL procssng */ |
b8324f94 TS |
1345 | if (bcs) |
1346 | disconnect_bc(at_state, cs, bcs); | |
1347 | else | |
1348 | disconnect_nobc(p_at_state, cs); | |
14fa73a7 HL |
1349 | break; |
1350 | ||
1351 | case ACT_ABORTDIAL: /* error/timeout during dial preparation */ | |
1352 | cs->cur_at_seq = SEQ_NONE; | |
1353 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1354 | cs->commands_pending = 1; |
14fa73a7 HL |
1355 | break; |
1356 | ||
1357 | case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */ | |
1358 | case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */ | |
1359 | case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */ | |
1360 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1361 | cs->commands_pending = 1; |
14fa73a7 | 1362 | break; |
917f5085 | 1363 | case ACT_GETSTRING: /* warning: RING, ZDLE, ... |
784d5858 | 1364 | are not handled properly anymore */ |
14fa73a7 HL |
1365 | at_state->getstring = 1; |
1366 | break; | |
1367 | case ACT_SETVER: | |
1368 | if (!ev->ptr) { | |
1369 | *p_genresp = 1; | |
1370 | *p_resp_code = RSP_ERROR; | |
1371 | break; | |
1372 | } | |
1373 | s = ev->ptr; | |
1374 | ||
1375 | if (!strcmp(s, "OK")) { | |
e055d03d | 1376 | /* OK without version string: assume old response */ |
14fa73a7 | 1377 | *p_genresp = 1; |
e055d03d | 1378 | *p_resp_code = RSP_NONE; |
14fa73a7 HL |
1379 | break; |
1380 | } | |
1381 | ||
1382 | for (i = 0; i < 4; ++i) { | |
1383 | val = simple_strtoul(s, (char **) &e, 10); | |
1384 | if (val > INT_MAX || e == s) | |
1385 | break; | |
1386 | if (i == 3) { | |
1387 | if (*e) | |
1388 | break; | |
1389 | } else if (*e != '.') | |
1390 | break; | |
1391 | else | |
1392 | s = e + 1; | |
1393 | cs->fwver[i] = val; | |
1394 | } | |
1395 | if (i != 4) { | |
1396 | *p_genresp = 1; | |
1397 | *p_resp_code = RSP_ERROR; | |
1398 | break; | |
1399 | } | |
14fa73a7 HL |
1400 | cs->gotfwver = 0; |
1401 | break; | |
1402 | case ACT_GOTVER: | |
1403 | if (cs->gotfwver == 0) { | |
1404 | cs->gotfwver = 1; | |
1528b18f | 1405 | gig_dbg(DEBUG_EVENT, |
784d5858 TS |
1406 | "firmware version %02d.%03d.%02d.%02d", |
1407 | cs->fwver[0], cs->fwver[1], | |
1408 | cs->fwver[2], cs->fwver[3]); | |
14fa73a7 HL |
1409 | break; |
1410 | } | |
1411 | /* fall through */ | |
1412 | case ACT_FAILVER: | |
1413 | cs->gotfwver = -1; | |
784d5858 | 1414 | dev_err(cs->dev, "could not read firmware version.\n"); |
14fa73a7 | 1415 | break; |
14fa73a7 | 1416 | case ACT_ERROR: |
05eae94f TS |
1417 | gig_dbg(DEBUG_ANY, "%s: ERROR response in ConState %d", |
1418 | __func__, at_state->ConState); | |
1419 | cs->cur_at_seq = SEQ_NONE; | |
14fa73a7 | 1420 | break; |
14fa73a7 | 1421 | case ACT_DEBUG: |
784d5858 | 1422 | gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d", |
14fa73a7 HL |
1423 | __func__, ev->type, at_state->ConState); |
1424 | break; | |
1425 | case ACT_WARN: | |
784d5858 TS |
1426 | dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n", |
1427 | __func__, ev->type, at_state->ConState); | |
14fa73a7 HL |
1428 | break; |
1429 | case ACT_ZCAU: | |
784d5858 TS |
1430 | dev_warn(cs->dev, "cause code %04x in connection state %d.\n", |
1431 | ev->parameter, at_state->ConState); | |
14fa73a7 HL |
1432 | break; |
1433 | ||
f86936ff TS |
1434 | /* events from the LL */ |
1435 | ||
14fa73a7 | 1436 | case ACT_DIAL: |
846ac301 TS |
1437 | if (!ev->ptr) { |
1438 | *p_genresp = 1; | |
1439 | *p_resp_code = RSP_ERROR; | |
1440 | break; | |
1441 | } | |
14fa73a7 HL |
1442 | start_dial(at_state, ev->ptr, ev->parameter); |
1443 | break; | |
1444 | case ACT_ACCEPT: | |
1445 | start_accept(at_state); | |
1446 | break; | |
14fa73a7 HL |
1447 | case ACT_HUP: |
1448 | at_state->pending_commands |= PC_HUP; | |
1528b18f | 1449 | gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP"); |
9d4bee2b | 1450 | cs->commands_pending = 1; |
14fa73a7 HL |
1451 | break; |
1452 | ||
f86936ff TS |
1453 | /* hotplug events */ |
1454 | ||
14fa73a7 HL |
1455 | case ACT_STOP: |
1456 | do_stop(cs); | |
1457 | break; | |
1458 | case ACT_START: | |
1459 | do_start(cs); | |
1460 | break; | |
1461 | ||
f86936ff TS |
1462 | /* events from the interface */ |
1463 | ||
14fa73a7 HL |
1464 | case ACT_IF_LOCK: |
1465 | cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs); | |
1466 | cs->waiting = 0; | |
1467 | wake_up(&cs->waitqueue); | |
1468 | break; | |
1469 | case ACT_IF_VER: | |
1470 | if (ev->parameter != 0) | |
1471 | cs->cmd_result = -EINVAL; | |
1472 | else if (cs->gotfwver != 1) { | |
1473 | cs->cmd_result = -ENOENT; | |
1474 | } else { | |
1475 | memcpy(ev->arg, cs->fwver, sizeof cs->fwver); | |
1476 | cs->cmd_result = 0; | |
1477 | } | |
1478 | cs->waiting = 0; | |
1479 | wake_up(&cs->waitqueue); | |
1480 | break; | |
1481 | ||
f86936ff TS |
1482 | /* events from the proc file system */ |
1483 | ||
14fa73a7 | 1484 | case ACT_PROC_CIDMODE: |
69049cc8 TS |
1485 | spin_lock_irqsave(&cs->lock, flags); |
1486 | if (ev->parameter != cs->cidmode) { | |
1487 | cs->cidmode = ev->parameter; | |
14fa73a7 HL |
1488 | if (ev->parameter) { |
1489 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1490 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
14fa73a7 HL |
1491 | } else { |
1492 | cs->at_state.pending_commands |= PC_UMMODE; | |
1528b18f | 1493 | gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE"); |
14fa73a7 | 1494 | } |
9d4bee2b | 1495 | cs->commands_pending = 1; |
14fa73a7 | 1496 | } |
69049cc8 | 1497 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1498 | cs->waiting = 0; |
1499 | wake_up(&cs->waitqueue); | |
1500 | break; | |
1501 | ||
f86936ff TS |
1502 | /* events from the hardware drivers */ |
1503 | ||
14fa73a7 HL |
1504 | case ACT_NOTIFY_BC_DOWN: |
1505 | bchannel_down(bcs); | |
1506 | break; | |
1507 | case ACT_NOTIFY_BC_UP: | |
1508 | bchannel_up(bcs); | |
1509 | break; | |
1510 | case ACT_SHUTDOWN: | |
1511 | do_shutdown(cs); | |
1512 | break; | |
1513 | ||
1514 | ||
1515 | default: | |
1516 | if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) { | |
1517 | *pp_command = at_state->bcs->commands[action - ACT_CMD]; | |
1518 | if (!*pp_command) { | |
1519 | *p_genresp = 1; | |
1520 | *p_resp_code = RSP_NULL; | |
1521 | } | |
1522 | } else | |
784d5858 | 1523 | dev_err(cs->dev, "%s: action==%d!\n", __func__, action); |
14fa73a7 HL |
1524 | } |
1525 | } | |
1526 | ||
1527 | /* State machine to do the calling and hangup procedure */ | |
1528 | static void process_event(struct cardstate *cs, struct event_t *ev) | |
1529 | { | |
1530 | struct bc_state *bcs; | |
1531 | char *p_command = NULL; | |
1532 | struct reply_t *rep; | |
1533 | int rcode; | |
1534 | int genresp = 0; | |
1535 | int resp_code = RSP_ERROR; | |
14fa73a7 HL |
1536 | struct at_state_t *at_state; |
1537 | int index; | |
1538 | int curact; | |
1539 | unsigned long flags; | |
1540 | ||
14fa73a7 HL |
1541 | if (ev->cid >= 0) { |
1542 | at_state = at_state_from_cid(cs, ev->cid); | |
1543 | if (!at_state) { | |
1528b18f TS |
1544 | gig_dbg(DEBUG_EVENT, "event %d for invalid cid %d", |
1545 | ev->type, ev->cid); | |
14fa73a7 | 1546 | gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID, |
784d5858 | 1547 | NULL, 0, NULL); |
14fa73a7 HL |
1548 | return; |
1549 | } | |
1550 | } else { | |
1551 | at_state = ev->at_state; | |
1552 | if (at_state_invalid(cs, at_state)) { | |
1528b18f | 1553 | gig_dbg(DEBUG_EVENT, "event for invalid at_state %p", |
784d5858 | 1554 | at_state); |
14fa73a7 HL |
1555 | return; |
1556 | } | |
1557 | } | |
1558 | ||
1528b18f | 1559 | gig_dbg(DEBUG_EVENT, "connection state %d, event %d", |
784d5858 | 1560 | at_state->ConState, ev->type); |
14fa73a7 HL |
1561 | |
1562 | bcs = at_state->bcs; | |
14fa73a7 HL |
1563 | |
1564 | /* Setting the pointer to the dial array */ | |
1565 | rep = at_state->replystruct; | |
14fa73a7 | 1566 | |
69049cc8 | 1567 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1568 | if (ev->type == EV_TIMEOUT) { |
69049cc8 | 1569 | if (ev->parameter != at_state->timer_index |
14fa73a7 HL |
1570 | || !at_state->timer_active) { |
1571 | ev->type = RSP_NONE; /* old timeout */ | |
1528b18f | 1572 | gig_dbg(DEBUG_EVENT, "old timeout"); |
63b203b4 TS |
1573 | } else { |
1574 | if (at_state->waiting) | |
1575 | gig_dbg(DEBUG_EVENT, "stopped waiting"); | |
1576 | else | |
1577 | gig_dbg(DEBUG_EVENT, "timeout occurred"); | |
1578 | } | |
14fa73a7 | 1579 | } |
69049cc8 | 1580 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 | 1581 | |
917f5085 TS |
1582 | /* if the response belongs to a variable in at_state->int_var[VAR_XXXX] |
1583 | or at_state->str_var[STR_XXXX], set it */ | |
14fa73a7 HL |
1584 | if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) { |
1585 | index = ev->type - RSP_VAR; | |
1586 | at_state->int_var[index] = ev->parameter; | |
1587 | } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) { | |
1588 | index = ev->type - RSP_STR; | |
1589 | kfree(at_state->str_var[index]); | |
1590 | at_state->str_var[index] = ev->ptr; | |
917f5085 TS |
1591 | ev->ptr = NULL; /* prevent process_events() from |
1592 | deallocating ptr */ | |
14fa73a7 HL |
1593 | } |
1594 | ||
1595 | if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING) | |
1596 | at_state->getstring = 0; | |
1597 | ||
917f5085 TS |
1598 | /* Search row in dial array which matches modem response and current |
1599 | constate */ | |
14fa73a7 HL |
1600 | for (;; rep++) { |
1601 | rcode = rep->resp_code; | |
14fa73a7 HL |
1602 | if (rcode == RSP_LAST) { |
1603 | /* found nothing...*/ | |
784d5858 | 1604 | dev_warn(cs->dev, "%s: rcode=RSP_LAST: " |
475be4d8 | 1605 | "resp_code %d in ConState %d!\n", |
784d5858 | 1606 | __func__, ev->type, at_state->ConState); |
14fa73a7 HL |
1607 | return; |
1608 | } | |
1609 | if ((rcode == RSP_ANY || rcode == ev->type) | |
475be4d8 JP |
1610 | && ((int) at_state->ConState >= rep->min_ConState) |
1611 | && (rep->max_ConState < 0 | |
1612 | || (int) at_state->ConState <= rep->max_ConState) | |
1613 | && (rep->parameter < 0 || rep->parameter == ev->parameter)) | |
14fa73a7 HL |
1614 | break; |
1615 | } | |
1616 | ||
1617 | p_command = rep->command; | |
1618 | ||
1619 | at_state->waiting = 0; | |
1620 | for (curact = 0; curact < MAXACT; ++curact) { | |
1621 | /* The row tells us what we should do .. | |
1622 | */ | |
c35a87ff TS |
1623 | do_action(rep->action[curact], cs, bcs, &at_state, &p_command, |
1624 | &genresp, &resp_code, ev); | |
14fa73a7 | 1625 | if (!at_state) |
63b203b4 TS |
1626 | /* at_state destroyed by disconnect */ |
1627 | return; | |
14fa73a7 HL |
1628 | } |
1629 | ||
63b203b4 TS |
1630 | /* Jump to the next con-state regarding the array */ |
1631 | if (rep->new_ConState >= 0) | |
1632 | at_state->ConState = rep->new_ConState; | |
14fa73a7 | 1633 | |
63b203b4 TS |
1634 | if (genresp) { |
1635 | spin_lock_irqsave(&cs->lock, flags); | |
1636 | at_state->timer_expires = 0; | |
1637 | at_state->timer_active = 0; | |
1638 | spin_unlock_irqrestore(&cs->lock, flags); | |
1639 | gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL); | |
1640 | } else { | |
1641 | /* Send command to modem if not NULL... */ | |
1642 | if (p_command) { | |
1643 | if (cs->connected) | |
1644 | send_command(cs, p_command, at_state); | |
1645 | else | |
1646 | gigaset_add_event(cs, at_state, RSP_NODEV, | |
1647 | NULL, 0, NULL); | |
1648 | } | |
1649 | ||
1650 | spin_lock_irqsave(&cs->lock, flags); | |
1651 | if (!rep->timeout) { | |
c35a87ff TS |
1652 | at_state->timer_expires = 0; |
1653 | at_state->timer_active = 0; | |
63b203b4 TS |
1654 | } else if (rep->timeout > 0) { /* new timeout */ |
1655 | at_state->timer_expires = rep->timeout * 10; | |
1656 | at_state->timer_active = 1; | |
1657 | ++at_state->timer_index; | |
14fa73a7 | 1658 | } |
63b203b4 | 1659 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1660 | } |
1661 | } | |
1662 | ||
1663 | static void schedule_sequence(struct cardstate *cs, | |
1664 | struct at_state_t *at_state, int sequence) | |
1665 | { | |
1666 | cs->cur_at_seq = sequence; | |
1667 | gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL); | |
1668 | } | |
1669 | ||
1670 | static void process_command_flags(struct cardstate *cs) | |
1671 | { | |
1672 | struct at_state_t *at_state = NULL; | |
1673 | struct bc_state *bcs; | |
1674 | int i; | |
1675 | int sequence; | |
69049cc8 | 1676 | unsigned long flags; |
14fa73a7 | 1677 | |
9d4bee2b | 1678 | cs->commands_pending = 0; |
14fa73a7 HL |
1679 | |
1680 | if (cs->cur_at_seq) { | |
1528b18f | 1681 | gig_dbg(DEBUG_EVENT, "not searching scheduled commands: busy"); |
14fa73a7 HL |
1682 | return; |
1683 | } | |
1684 | ||
1528b18f | 1685 | gig_dbg(DEBUG_EVENT, "searching scheduled commands"); |
14fa73a7 HL |
1686 | |
1687 | sequence = SEQ_NONE; | |
1688 | ||
1689 | /* clear pending_commands and hangup channels on shutdown */ | |
1690 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1691 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1692 | for (i = 0; i < cs->channels; ++i) { | |
1693 | bcs = cs->bcs + i; | |
1694 | at_state = &bcs->at_state; | |
1695 | at_state->pending_commands &= | |
1696 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1697 | if (at_state->cid > 0) | |
1698 | at_state->pending_commands |= PC_HUP; | |
1699 | if (at_state->pending_commands & PC_CID) { | |
1700 | at_state->pending_commands |= PC_NOCID; | |
1701 | at_state->pending_commands &= ~PC_CID; | |
1702 | } | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | /* clear pending_commands and hangup channels on reset */ | |
1707 | if (cs->at_state.pending_commands & PC_INIT) { | |
1708 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
1709 | for (i = 0; i < cs->channels; ++i) { | |
1710 | bcs = cs->bcs + i; | |
1711 | at_state = &bcs->at_state; | |
1712 | at_state->pending_commands &= | |
1713 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | |
1714 | if (at_state->cid > 0) | |
1715 | at_state->pending_commands |= PC_HUP; | |
9d4bee2b | 1716 | if (cs->mstate == MS_RECOVER) { |
14fa73a7 HL |
1717 | if (at_state->pending_commands & PC_CID) { |
1718 | at_state->pending_commands |= PC_NOCID; | |
1719 | at_state->pending_commands &= ~PC_CID; | |
1720 | } | |
1721 | } | |
1722 | } | |
1723 | } | |
1724 | ||
c35a87ff TS |
1725 | /* only switch back to unimodem mode if no commands are pending and |
1726 | * no channels are up */ | |
69049cc8 | 1727 | spin_lock_irqsave(&cs->lock, flags); |
14fa73a7 | 1728 | if (cs->at_state.pending_commands == PC_UMMODE |
69049cc8 | 1729 | && !cs->cidmode |
14fa73a7 | 1730 | && list_empty(&cs->temp_at_states) |
9d4bee2b | 1731 | && cs->mode == M_CID) { |
14fa73a7 HL |
1732 | sequence = SEQ_UMMODE; |
1733 | at_state = &cs->at_state; | |
1734 | for (i = 0; i < cs->channels; ++i) { | |
1735 | bcs = cs->bcs + i; | |
1736 | if (bcs->at_state.pending_commands || | |
1737 | bcs->at_state.cid > 0) { | |
1738 | sequence = SEQ_NONE; | |
1739 | break; | |
1740 | } | |
1741 | } | |
1742 | } | |
69049cc8 | 1743 | spin_unlock_irqrestore(&cs->lock, flags); |
14fa73a7 HL |
1744 | cs->at_state.pending_commands &= ~PC_UMMODE; |
1745 | if (sequence != SEQ_NONE) { | |
1746 | schedule_sequence(cs, at_state, sequence); | |
1747 | return; | |
1748 | } | |
1749 | ||
1750 | for (i = 0; i < cs->channels; ++i) { | |
1751 | bcs = cs->bcs + i; | |
1752 | if (bcs->at_state.pending_commands & PC_HUP) { | |
d2ca8481 TS |
1753 | if (cs->dle) { |
1754 | cs->curchannel = bcs->channel; | |
1755 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | |
1756 | return; | |
1757 | } | |
14fa73a7 HL |
1758 | bcs->at_state.pending_commands &= ~PC_HUP; |
1759 | if (bcs->at_state.pending_commands & PC_CID) { | |
1760 | /* not yet dialing: PC_NOCID is sufficient */ | |
1761 | bcs->at_state.pending_commands |= PC_NOCID; | |
1762 | bcs->at_state.pending_commands &= ~PC_CID; | |
1763 | } else { | |
1764 | schedule_sequence(cs, &bcs->at_state, SEQ_HUP); | |
1765 | return; | |
1766 | } | |
1767 | } | |
1768 | if (bcs->at_state.pending_commands & PC_NOCID) { | |
1769 | bcs->at_state.pending_commands &= ~PC_NOCID; | |
1770 | cs->curchannel = bcs->channel; | |
1771 | schedule_sequence(cs, &cs->at_state, SEQ_NOCID); | |
1772 | return; | |
1773 | } else if (bcs->at_state.pending_commands & PC_DLE0) { | |
1774 | bcs->at_state.pending_commands &= ~PC_DLE0; | |
1775 | cs->curchannel = bcs->channel; | |
1776 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | |
1777 | return; | |
1778 | } | |
1779 | } | |
1780 | ||
1781 | list_for_each_entry(at_state, &cs->temp_at_states, list) | |
1782 | if (at_state->pending_commands & PC_HUP) { | |
1783 | at_state->pending_commands &= ~PC_HUP; | |
1784 | schedule_sequence(cs, at_state, SEQ_HUP); | |
1785 | return; | |
1786 | } | |
1787 | ||
1788 | if (cs->at_state.pending_commands & PC_INIT) { | |
1789 | cs->at_state.pending_commands &= ~PC_INIT; | |
c35a87ff | 1790 | cs->dle = 0; |
14fa73a7 | 1791 | cs->inbuf->inputstate = INS_command; |
14fa73a7 HL |
1792 | schedule_sequence(cs, &cs->at_state, SEQ_INIT); |
1793 | return; | |
1794 | } | |
1795 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | |
1796 | cs->at_state.pending_commands &= ~PC_SHUTDOWN; | |
1797 | schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN); | |
1798 | return; | |
1799 | } | |
1800 | if (cs->at_state.pending_commands & PC_CIDMODE) { | |
1801 | cs->at_state.pending_commands &= ~PC_CIDMODE; | |
9d4bee2b | 1802 | if (cs->mode == M_UNIMODEM) { |
14fa73a7 | 1803 | cs->retry_count = 1; |
14fa73a7 HL |
1804 | schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE); |
1805 | return; | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | for (i = 0; i < cs->channels; ++i) { | |
1810 | bcs = cs->bcs + i; | |
1811 | if (bcs->at_state.pending_commands & PC_DLE1) { | |
1812 | bcs->at_state.pending_commands &= ~PC_DLE1; | |
1813 | cs->curchannel = bcs->channel; | |
1814 | schedule_sequence(cs, &cs->at_state, SEQ_DLE1); | |
1815 | return; | |
1816 | } | |
1817 | if (bcs->at_state.pending_commands & PC_ACCEPT) { | |
1818 | bcs->at_state.pending_commands &= ~PC_ACCEPT; | |
1819 | schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT); | |
1820 | return; | |
1821 | } | |
1822 | if (bcs->at_state.pending_commands & PC_DIAL) { | |
1823 | bcs->at_state.pending_commands &= ~PC_DIAL; | |
1824 | schedule_sequence(cs, &bcs->at_state, SEQ_DIAL); | |
1825 | return; | |
1826 | } | |
1827 | if (bcs->at_state.pending_commands & PC_CID) { | |
9d4bee2b | 1828 | switch (cs->mode) { |
14fa73a7 HL |
1829 | case M_UNIMODEM: |
1830 | cs->at_state.pending_commands |= PC_CIDMODE; | |
1528b18f | 1831 | gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE"); |
9d4bee2b | 1832 | cs->commands_pending = 1; |
14fa73a7 | 1833 | return; |
14fa73a7 HL |
1834 | case M_UNKNOWN: |
1835 | schedule_init(cs, MS_INIT); | |
1836 | return; | |
14fa73a7 HL |
1837 | } |
1838 | bcs->at_state.pending_commands &= ~PC_CID; | |
1839 | cs->curchannel = bcs->channel; | |
14fa73a7 | 1840 | cs->retry_count = 2; |
14fa73a7 HL |
1841 | schedule_sequence(cs, &cs->at_state, SEQ_CID); |
1842 | return; | |
1843 | } | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | static void process_events(struct cardstate *cs) | |
1848 | { | |
1849 | struct event_t *ev; | |
1850 | unsigned head, tail; | |
1851 | int i; | |
1852 | int check_flags = 0; | |
1853 | int was_busy; | |
69049cc8 | 1854 | unsigned long flags; |
14fa73a7 | 1855 | |
69049cc8 TS |
1856 | spin_lock_irqsave(&cs->ev_lock, flags); |
1857 | head = cs->ev_head; | |
14fa73a7 HL |
1858 | |
1859 | for (i = 0; i < 2 * MAX_EVENTS; ++i) { | |
69049cc8 | 1860 | tail = cs->ev_tail; |
14fa73a7 | 1861 | if (tail == head) { |
9d4bee2b | 1862 | if (!check_flags && !cs->commands_pending) |
14fa73a7 HL |
1863 | break; |
1864 | check_flags = 0; | |
69049cc8 | 1865 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1866 | process_command_flags(cs); |
69049cc8 TS |
1867 | spin_lock_irqsave(&cs->ev_lock, flags); |
1868 | tail = cs->ev_tail; | |
14fa73a7 | 1869 | if (tail == head) { |
9d4bee2b | 1870 | if (!cs->commands_pending) |
14fa73a7 HL |
1871 | break; |
1872 | continue; | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | ev = cs->events + head; | |
1877 | was_busy = cs->cur_at_seq != SEQ_NONE; | |
69049cc8 | 1878 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
14fa73a7 | 1879 | process_event(cs, ev); |
69049cc8 | 1880 | spin_lock_irqsave(&cs->ev_lock, flags); |
14fa73a7 HL |
1881 | kfree(ev->ptr); |
1882 | ev->ptr = NULL; | |
1883 | if (was_busy && cs->cur_at_seq == SEQ_NONE) | |
1884 | check_flags = 1; | |
1885 | ||
1886 | head = (head + 1) % MAX_EVENTS; | |
69049cc8 | 1887 | cs->ev_head = head; |
14fa73a7 HL |
1888 | } |
1889 | ||
69049cc8 TS |
1890 | spin_unlock_irqrestore(&cs->ev_lock, flags); |
1891 | ||
14fa73a7 | 1892 | if (i == 2 * MAX_EVENTS) { |
784d5858 TS |
1893 | dev_err(cs->dev, |
1894 | "infinite loop in process_events; aborting.\n"); | |
14fa73a7 HL |
1895 | } |
1896 | } | |
1897 | ||
1898 | /* tasklet scheduled on any event received from the Gigaset device | |
1899 | * parameter: | |
1900 | * data ISDN controller state structure | |
1901 | */ | |
1902 | void gigaset_handle_event(unsigned long data) | |
1903 | { | |
1904 | struct cardstate *cs = (struct cardstate *) data; | |
1905 | ||
14fa73a7 | 1906 | /* handle incoming data on control/common channel */ |
9d4bee2b | 1907 | if (cs->inbuf->head != cs->inbuf->tail) { |
784d5858 | 1908 | gig_dbg(DEBUG_INTR, "processing new data"); |
14fa73a7 HL |
1909 | cs->ops->handle_input(cs->inbuf); |
1910 | } | |
1911 | ||
1912 | process_events(cs); | |
1913 | } |