diff options
author | Hansjoerg Lipp <hjlipp@web.de> | 2006-03-26 04:38:30 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 11:57:05 -0500 |
commit | 14fa73a75df6a0ffe866f750e8dcd218d0171f51 (patch) | |
tree | 2c2533189245bf9f4e4035d6b717641a1b845387 /drivers/isdn/gigaset | |
parent | 6fd5ea63f85e30fda55b80939b4f379ea5db62b1 (diff) |
[PATCH] isdn4linux: Siemens Gigaset drivers - event layer
And: Tilman Schmidt <tilman@imap.cc>
This patch adds the event layer to the gigaset module. The event layer
serializes events from hardware, userspace, and other kernel subsystems.
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/isdn/gigaset')
-rw-r--r-- | drivers/isdn/gigaset/ev-layer.c | 1983 |
1 files changed, 1983 insertions, 0 deletions
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c new file mode 100644 index 000000000000..fdcb80bb21c7 --- /dev/null +++ b/drivers/isdn/gigaset/ev-layer.c | |||
@@ -0,0 +1,1983 @@ | |||
1 | /* | ||
2 | * Stuff used by all variants of the driver | ||
3 | * | ||
4 | * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>, | ||
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 | * ===================================================================== | ||
14 | * ToDo: ... | ||
15 | * ===================================================================== | ||
16 | * Version: $Id: ev-layer.c,v 1.4.2.18 2006/02/04 18:28:16 hjlipp Exp $ | ||
17 | * ===================================================================== | ||
18 | */ | ||
19 | |||
20 | #include "gigaset.h" | ||
21 | |||
22 | /* ========================================================== */ | ||
23 | /* bit masks for pending commands */ | ||
24 | #define PC_INIT 0x004 | ||
25 | #define PC_DLE0 0x008 | ||
26 | #define PC_DLE1 0x010 | ||
27 | #define PC_CID 0x080 | ||
28 | #define PC_NOCID 0x100 | ||
29 | #define PC_HUP 0x002 | ||
30 | #define PC_DIAL 0x001 | ||
31 | #define PC_ACCEPT 0x040 | ||
32 | #define PC_SHUTDOWN 0x020 | ||
33 | #define PC_CIDMODE 0x200 | ||
34 | #define PC_UMMODE 0x400 | ||
35 | |||
36 | /* types of modem responses */ | ||
37 | #define RT_NOTHING 0 | ||
38 | #define RT_ZSAU 1 | ||
39 | #define RT_RING 2 | ||
40 | #define RT_NUMBER 3 | ||
41 | #define RT_STRING 4 | ||
42 | #define RT_HEX 5 | ||
43 | #define RT_ZCAU 6 | ||
44 | |||
45 | /* Possible ASCII responses */ | ||
46 | #define RSP_OK 0 | ||
47 | //#define RSP_BUSY 1 | ||
48 | //#define RSP_CONNECT 2 | ||
49 | #define RSP_ZGCI 3 | ||
50 | #define RSP_RING 4 | ||
51 | #define RSP_ZAOC 5 | ||
52 | #define RSP_ZCSTR 6 | ||
53 | #define RSP_ZCFGT 7 | ||
54 | #define RSP_ZCFG 8 | ||
55 | #define RSP_ZCCR 9 | ||
56 | #define RSP_EMPTY 10 | ||
57 | #define RSP_ZLOG 11 | ||
58 | #define RSP_ZCAU 12 | ||
59 | #define RSP_ZMWI 13 | ||
60 | #define RSP_ZABINFO 14 | ||
61 | #define RSP_ZSMLSTCHG 15 | ||
62 | #define RSP_VAR 100 | ||
63 | #define RSP_ZSAU (RSP_VAR + VAR_ZSAU) | ||
64 | #define RSP_ZDLE (RSP_VAR + VAR_ZDLE) | ||
65 | #define RSP_ZVLS (RSP_VAR + VAR_ZVLS) | ||
66 | #define RSP_ZCTP (RSP_VAR + VAR_ZCTP) | ||
67 | #define RSP_STR (RSP_VAR + VAR_NUM) | ||
68 | #define RSP_NMBR (RSP_STR + STR_NMBR) | ||
69 | #define RSP_ZCPN (RSP_STR + STR_ZCPN) | ||
70 | #define RSP_ZCON (RSP_STR + STR_ZCON) | ||
71 | #define RSP_ZBC (RSP_STR + STR_ZBC) | ||
72 | #define RSP_ZHLC (RSP_STR + STR_ZHLC) | ||
73 | #define RSP_ERROR -1 /* ERROR */ | ||
74 | #define RSP_WRONG_CID -2 /* unknown cid in cmd */ | ||
75 | //#define RSP_EMPTY -3 | ||
76 | #define RSP_UNKNOWN -4 /* unknown response */ | ||
77 | #define RSP_FAIL -5 /* internal error */ | ||
78 | #define RSP_INVAL -6 /* invalid response */ | ||
79 | |||
80 | #define RSP_NONE -19 | ||
81 | #define RSP_STRING -20 | ||
82 | #define RSP_NULL -21 | ||
83 | //#define RSP_RETRYFAIL -22 | ||
84 | //#define RSP_RETRY -23 | ||
85 | //#define RSP_SKIP -24 | ||
86 | #define RSP_INIT -27 | ||
87 | #define RSP_ANY -26 | ||
88 | #define RSP_LAST -28 | ||
89 | #define RSP_NODEV -9 | ||
90 | |||
91 | /* actions for process_response */ | ||
92 | #define ACT_NOTHING 0 | ||
93 | #define ACT_SETDLE1 1 | ||
94 | #define ACT_SETDLE0 2 | ||
95 | #define ACT_FAILINIT 3 | ||
96 | #define ACT_HUPMODEM 4 | ||
97 | #define ACT_CONFIGMODE 5 | ||
98 | #define ACT_INIT 6 | ||
99 | #define ACT_DLE0 7 | ||
100 | #define ACT_DLE1 8 | ||
101 | #define ACT_FAILDLE0 9 | ||
102 | #define ACT_FAILDLE1 10 | ||
103 | #define ACT_RING 11 | ||
104 | #define ACT_CID 12 | ||
105 | #define ACT_FAILCID 13 | ||
106 | #define ACT_SDOWN 14 | ||
107 | #define ACT_FAILSDOWN 15 | ||
108 | #define ACT_DEBUG 16 | ||
109 | #define ACT_WARN 17 | ||
110 | #define ACT_DIALING 18 | ||
111 | #define ACT_ABORTDIAL 19 | ||
112 | #define ACT_DISCONNECT 20 | ||
113 | #define ACT_CONNECT 21 | ||
114 | #define ACT_REMOTEREJECT 22 | ||
115 | #define ACT_CONNTIMEOUT 23 | ||
116 | #define ACT_REMOTEHUP 24 | ||
117 | #define ACT_ABORTHUP 25 | ||
118 | #define ACT_ICALL 26 | ||
119 | #define ACT_ACCEPTED 27 | ||
120 | #define ACT_ABORTACCEPT 28 | ||
121 | #define ACT_TIMEOUT 29 | ||
122 | #define ACT_GETSTRING 30 | ||
123 | #define ACT_SETVER 31 | ||
124 | #define ACT_FAILVER 32 | ||
125 | #define ACT_GOTVER 33 | ||
126 | #define ACT_TEST 34 | ||
127 | #define ACT_ERROR 35 | ||
128 | #define ACT_ABORTCID 36 | ||
129 | #define ACT_ZCAU 37 | ||
130 | #define ACT_NOTIFY_BC_DOWN 38 | ||
131 | #define ACT_NOTIFY_BC_UP 39 | ||
132 | #define ACT_DIAL 40 | ||
133 | #define ACT_ACCEPT 41 | ||
134 | #define ACT_PROTO_L2 42 | ||
135 | #define ACT_HUP 43 | ||
136 | #define ACT_IF_LOCK 44 | ||
137 | #define ACT_START 45 | ||
138 | #define ACT_STOP 46 | ||
139 | #define ACT_FAKEDLE0 47 | ||
140 | #define ACT_FAKEHUP 48 | ||
141 | #define ACT_FAKESDOWN 49 | ||
142 | #define ACT_SHUTDOWN 50 | ||
143 | #define ACT_PROC_CIDMODE 51 | ||
144 | #define ACT_UMODESET 52 | ||
145 | #define ACT_FAILUMODE 53 | ||
146 | #define ACT_CMODESET 54 | ||
147 | #define ACT_FAILCMODE 55 | ||
148 | #define ACT_IF_VER 56 | ||
149 | #define ACT_CMD 100 | ||
150 | |||
151 | /* at command sequences */ | ||
152 | #define SEQ_NONE 0 | ||
153 | #define SEQ_INIT 100 | ||
154 | #define SEQ_DLE0 200 | ||
155 | #define SEQ_DLE1 250 | ||
156 | #define SEQ_CID 300 | ||
157 | #define SEQ_NOCID 350 | ||
158 | #define SEQ_HUP 400 | ||
159 | #define SEQ_DIAL 600 | ||
160 | #define SEQ_ACCEPT 720 | ||
161 | #define SEQ_SHUTDOWN 500 | ||
162 | #define SEQ_CIDMODE 10 | ||
163 | #define SEQ_UMMODE 11 | ||
164 | |||
165 | |||
166 | // 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid), 400: hup, 500: reset, 600: dial, 700: ring | ||
167 | struct reply_t gigaset_tab_nocid_m10x[]= /* with dle mode */ | ||
168 | { | ||
169 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */ | ||
170 | |||
171 | /* initialize device, set cid mode if possible */ | ||
172 | //{RSP_INIT, -1, -1,100, 900, 0, {ACT_TEST}}, | ||
173 | //{RSP_ERROR, 900,900, -1, 0, 0, {ACT_FAILINIT}}, | ||
174 | //{RSP_OK, 900,900, -1, 100, INIT_TIMEOUT, | ||
175 | // {ACT_TIMEOUT}}, | ||
176 | |||
177 | {RSP_INIT, -1, -1,SEQ_INIT, 100, INIT_TIMEOUT, | ||
178 | {ACT_TIMEOUT}}, /* wait until device is ready */ | ||
179 | |||
180 | {EV_TIMEOUT, 100,100, -1, 101, 3, {0}, "Z\r"}, /* device in transparent mode? try to initialize it. */ | ||
181 | {RSP_OK, 101,103, -1, 120, 5, {ACT_GETSTRING}, "+GMR\r"}, /* get version */ | ||
182 | |||
183 | {EV_TIMEOUT, 101,101, -1, 102, 5, {0}, "Z\r"}, /* timeout => try once again. */ | ||
184 | {RSP_ERROR, 101,101, -1, 102, 5, {0}, "Z\r"}, /* error => try once again. */ | ||
185 | |||
186 | {EV_TIMEOUT, 102,102, -1, 108, 5, {ACT_SETDLE1}, "^SDLE=0\r"}, /* timeout => try again in DLE mode. */ | ||
187 | {RSP_OK, 108,108, -1, 104,-1}, | ||
188 | {RSP_ZDLE, 104,104, 0, 103, 5, {0}, "Z\r"}, | ||
189 | {EV_TIMEOUT, 104,104, -1, 0, 0, {ACT_FAILINIT}}, | ||
190 | {RSP_ERROR, 108,108, -1, 0, 0, {ACT_FAILINIT}}, | ||
191 | |||
192 | {EV_TIMEOUT, 108,108, -1, 105, 2, {ACT_SETDLE0, | ||
193 | ACT_HUPMODEM, | ||
194 | ACT_TIMEOUT}}, /* still timeout => connection in unimodem mode? */ | ||
195 | {EV_TIMEOUT, 105,105, -1, 103, 5, {0}, "Z\r"}, | ||
196 | |||
197 | {RSP_ERROR, 102,102, -1, 107, 5, {0}, "^GETPRE\r"}, /* ERROR on ATZ => maybe in config mode? */ | ||
198 | {RSP_OK, 107,107, -1, 0, 0, {ACT_CONFIGMODE}}, | ||
199 | {RSP_ERROR, 107,107, -1, 0, 0, {ACT_FAILINIT}}, | ||
200 | {EV_TIMEOUT, 107,107, -1, 0, 0, {ACT_FAILINIT}}, | ||
201 | |||
202 | {RSP_ERROR, 103,103, -1, 0, 0, {ACT_FAILINIT}}, | ||
203 | {EV_TIMEOUT, 103,103, -1, 0, 0, {ACT_FAILINIT}}, | ||
204 | |||
205 | {RSP_STRING, 120,120, -1, 121,-1, {ACT_SETVER}}, | ||
206 | |||
207 | {EV_TIMEOUT, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}}, | ||
208 | {RSP_ERROR, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}}, | ||
209 | {RSP_OK, 121,121, -1, 0, 0, {ACT_GOTVER, ACT_INIT}}, | ||
210 | #if 0 | ||
211 | {EV_TIMEOUT, 120,121, -1, 130, 5, {ACT_FAILVER}, "^SGCI=1\r"}, | ||
212 | {RSP_ERROR, 120,121, -1, 130, 5, {ACT_FAILVER}, "^SGCI=1\r"}, | ||
213 | {RSP_OK, 121,121, -1, 130, 5, {ACT_GOTVER}, "^SGCI=1\r"}, | ||
214 | |||
215 | {RSP_OK, 130,130, -1, 0, 0, {ACT_INIT}}, | ||
216 | {RSP_ERROR, 130,130, -1, 0, 0, {ACT_FAILINIT}}, | ||
217 | {EV_TIMEOUT, 130,130, -1, 0, 0, {ACT_FAILINIT}}, | ||
218 | #endif | ||
219 | |||
220 | /* leave dle mode */ | ||
221 | {RSP_INIT, 0, 0,SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"}, | ||
222 | {RSP_OK, 201,201, -1, 202,-1}, | ||
223 | //{RSP_ZDLE, 202,202, 0, 202, 0, {ACT_ERROR}},//DELETE | ||
224 | {RSP_ZDLE, 202,202, 0, 0, 0, {ACT_DLE0}}, | ||
225 | {RSP_NODEV, 200,249, -1, 0, 0, {ACT_FAKEDLE0}}, | ||
226 | {RSP_ERROR, 200,249, -1, 0, 0, {ACT_FAILDLE0}}, | ||
227 | {EV_TIMEOUT, 200,249, -1, 0, 0, {ACT_FAILDLE0}}, | ||
228 | |||
229 | /* enter dle mode */ | ||
230 | {RSP_INIT, 0, 0,SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"}, | ||
231 | {RSP_OK, 251,251, -1, 252,-1}, | ||
232 | {RSP_ZDLE, 252,252, 1, 0, 0, {ACT_DLE1}}, | ||
233 | {RSP_ERROR, 250,299, -1, 0, 0, {ACT_FAILDLE1}}, | ||
234 | {EV_TIMEOUT, 250,299, -1, 0, 0, {ACT_FAILDLE1}}, | ||
235 | |||
236 | /* incoming call */ | ||
237 | {RSP_RING, -1, -1, -1, -1,-1, {ACT_RING}}, | ||
238 | |||
239 | /* get cid */ | ||
240 | //{RSP_INIT, 0, 0,300, 901, 0, {ACT_TEST}}, | ||
241 | //{RSP_ERROR, 901,901, -1, 0, 0, {ACT_FAILCID}}, | ||
242 | //{RSP_OK, 901,901, -1, 301, 5, {0}, "^SGCI?\r"}, | ||
243 | |||
244 | {RSP_INIT, 0, 0,SEQ_CID, 301, 5, {0}, "^SGCI?\r"}, | ||
245 | {RSP_OK, 301,301, -1, 302,-1}, | ||
246 | {RSP_ZGCI, 302,302, -1, 0, 0, {ACT_CID}}, | ||
247 | {RSP_ERROR, 301,349, -1, 0, 0, {ACT_FAILCID}}, | ||
248 | {EV_TIMEOUT, 301,349, -1, 0, 0, {ACT_FAILCID}}, | ||
249 | |||
250 | /* enter cid mode */ | ||
251 | {RSP_INIT, 0, 0,SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"}, | ||
252 | {RSP_OK, 150,150, -1, 0, 0, {ACT_CMODESET}}, | ||
253 | {RSP_ERROR, 150,150, -1, 0, 0, {ACT_FAILCMODE}}, | ||
254 | {EV_TIMEOUT, 150,150, -1, 0, 0, {ACT_FAILCMODE}}, | ||
255 | |||
256 | /* leave cid mode */ | ||
257 | //{RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "^SGCI=0\r"}, | ||
258 | {RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "Z\r"}, | ||
259 | {RSP_OK, 160,160, -1, 0, 0, {ACT_UMODESET}}, | ||
260 | {RSP_ERROR, 160,160, -1, 0, 0, {ACT_FAILUMODE}}, | ||
261 | {EV_TIMEOUT, 160,160, -1, 0, 0, {ACT_FAILUMODE}}, | ||
262 | |||
263 | /* abort getting cid */ | ||
264 | {RSP_INIT, 0, 0,SEQ_NOCID, 0, 0, {ACT_ABORTCID}}, | ||
265 | |||
266 | /* reset */ | ||
267 | #if 0 | ||
268 | {RSP_INIT, 0, 0,SEQ_SHUTDOWN, 503, 5, {0}, "^SGCI=0\r"}, | ||
269 | {RSP_OK, 503,503, -1, 504, 5, {0}, "Z\r"}, | ||
270 | #endif | ||
271 | {RSP_INIT, 0, 0,SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"}, | ||
272 | {RSP_OK, 504,504, -1, 0, 0, {ACT_SDOWN}}, | ||
273 | {RSP_ERROR, 501,599, -1, 0, 0, {ACT_FAILSDOWN}}, | ||
274 | {EV_TIMEOUT, 501,599, -1, 0, 0, {ACT_FAILSDOWN}}, | ||
275 | {RSP_NODEV, 501,599, -1, 0, 0, {ACT_FAKESDOWN}}, | ||
276 | |||
277 | {EV_PROC_CIDMODE,-1, -1, -1, -1,-1, {ACT_PROC_CIDMODE}}, //FIXME | ||
278 | {EV_IF_LOCK, -1, -1, -1, -1,-1, {ACT_IF_LOCK}}, //FIXME | ||
279 | {EV_IF_VER, -1, -1, -1, -1,-1, {ACT_IF_VER}}, //FIXME | ||
280 | {EV_START, -1, -1, -1, -1,-1, {ACT_START}}, //FIXME | ||
281 | {EV_STOP, -1, -1, -1, -1,-1, {ACT_STOP}}, //FIXME | ||
282 | {EV_SHUTDOWN, -1, -1, -1, -1,-1, {ACT_SHUTDOWN}}, //FIXME | ||
283 | |||
284 | /* misc. */ | ||
285 | {RSP_EMPTY, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
286 | {RSP_ZCFGT, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
287 | {RSP_ZCFG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
288 | {RSP_ZLOG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
289 | {RSP_ZMWI, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
290 | {RSP_ZABINFO, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
291 | {RSP_ZSMLSTCHG,-1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
292 | |||
293 | {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}}, | ||
294 | {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}}, | ||
295 | {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}}, | ||
296 | {RSP_LAST} | ||
297 | }; | ||
298 | |||
299 | // 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring, 400: hup, 750: accepted icall | ||
300 | struct reply_t gigaset_tab_cid_m10x[] = /* for M10x */ | ||
301 | { | ||
302 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */ | ||
303 | |||
304 | /* dial */ | ||
305 | {EV_DIAL, -1, -1, -1, -1,-1, {ACT_DIAL}}, //FIXME | ||
306 | {RSP_INIT, 0, 0,SEQ_DIAL, 601, 5, {ACT_CMD+AT_BC}}, | ||
307 | {RSP_OK, 601,601, -1, 602, 5, {ACT_CMD+AT_HLC}}, | ||
308 | {RSP_NULL, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}}, | ||
309 | {RSP_OK, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}}, | ||
310 | {RSP_OK, 603,603, -1, 604, 5, {ACT_CMD+AT_TYPE}}, | ||
311 | {RSP_OK, 604,604, -1, 605, 5, {ACT_CMD+AT_MSN}}, | ||
312 | {RSP_OK, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}}, | ||
313 | {RSP_NULL, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}}, | ||
314 | {RSP_OK, 606,606, -1, 607, 5, {0}, "+VLS=17\r"}, /* set "Endgeraetemodus" */ | ||
315 | {RSP_OK, 607,607, -1, 608,-1}, | ||
316 | //{RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 608, 0, {ACT_ERROR}},//DELETE | ||
317 | {RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 609, 5, {ACT_CMD+AT_DIAL}}, | ||
318 | {RSP_OK, 609,609, -1, 650, 0, {ACT_DIALING}}, | ||
319 | |||
320 | {RSP_ZVLS, 608,608, 17, -1,-1, {ACT_DEBUG}}, | ||
321 | {RSP_ZCTP, 609,609, -1, -1,-1, {ACT_DEBUG}}, | ||
322 | {RSP_ZCPN, 609,609, -1, -1,-1, {ACT_DEBUG}}, | ||
323 | {RSP_ERROR, 601,609, -1, 0, 0, {ACT_ABORTDIAL}}, | ||
324 | {EV_TIMEOUT, 601,609, -1, 0, 0, {ACT_ABORTDIAL}}, | ||
325 | |||
326 | /* dialing */ | ||
327 | {RSP_ZCTP, 650,650, -1, -1,-1, {ACT_DEBUG}}, | ||
328 | {RSP_ZCPN, 650,650, -1, -1,-1, {ACT_DEBUG}}, | ||
329 | {RSP_ZSAU, 650,650,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}}, /* some devices don't send this */ | ||
330 | |||
331 | /* connection established */ | ||
332 | {RSP_ZSAU, 650,650,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, //FIXME -> DLE1 | ||
333 | {RSP_ZSAU, 750,750,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, //FIXME -> DLE1 | ||
334 | |||
335 | {EV_BC_OPEN, 800,800, -1, 800,-1, {ACT_NOTIFY_BC_UP}}, //FIXME new constate + timeout | ||
336 | |||
337 | /* remote hangup */ | ||
338 | {RSP_ZSAU, 650,650,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT}}, | ||
339 | {RSP_ZSAU, 750,750,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}}, | ||
340 | {RSP_ZSAU, 800,800,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}}, | ||
341 | |||
342 | /* hangup */ | ||
343 | {EV_HUP, -1, -1, -1, -1,-1, {ACT_HUP}}, //FIXME | ||
344 | {RSP_INIT, -1, -1,SEQ_HUP, 401, 5, {0}, "+VLS=0\r"}, /* hang up */ //-1,-1? | ||
345 | {RSP_OK, 401,401, -1, 402, 5}, | ||
346 | {RSP_ZVLS, 402,402, 0, 403, 5}, | ||
347 | {RSP_ZSAU, 403,403,ZSAU_DISCONNECT_REQ, -1,-1, {ACT_DEBUG}}, /* if not remote hup */ | ||
348 | //{RSP_ZSAU, 403,403,ZSAU_NULL, 401, 0, {ACT_ERROR}}, //DELETE//FIXME -> DLE0 // should we do this _before_ hanging up for base driver? | ||
349 | {RSP_ZSAU, 403,403,ZSAU_NULL, 0, 0, {ACT_DISCONNECT}}, //FIXME -> DLE0 // should we do this _before_ hanging up for base driver? | ||
350 | {RSP_NODEV, 401,403, -1, 0, 0, {ACT_FAKEHUP}}, //FIXME -> DLE0 // should we do this _before_ hanging up for base driver? | ||
351 | {RSP_ERROR, 401,401, -1, 0, 0, {ACT_ABORTHUP}}, | ||
352 | {EV_TIMEOUT, 401,403, -1, 0, 0, {ACT_ABORTHUP}}, | ||
353 | |||
354 | {EV_BC_CLOSED, 0, 0, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME new constate + timeout | ||
355 | |||
356 | /* ring */ | ||
357 | {RSP_ZBC, 700,700, -1, -1,-1, {0}}, | ||
358 | {RSP_ZHLC, 700,700, -1, -1,-1, {0}}, | ||
359 | {RSP_NMBR, 700,700, -1, -1,-1, {0}}, | ||
360 | {RSP_ZCPN, 700,700, -1, -1,-1, {0}}, | ||
361 | {RSP_ZCTP, 700,700, -1, -1,-1, {0}}, | ||
362 | {EV_TIMEOUT, 700,700, -1, 720,720, {ACT_ICALL}}, | ||
363 | {EV_BC_CLOSED,720,720, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}}, | ||
364 | |||
365 | /*accept icall*/ | ||
366 | {EV_ACCEPT, -1, -1, -1, -1,-1, {ACT_ACCEPT}}, //FIXME | ||
367 | {RSP_INIT, 720,720,SEQ_ACCEPT, 721, 5, {ACT_CMD+AT_PROTO}}, | ||
368 | {RSP_OK, 721,721, -1, 722, 5, {ACT_CMD+AT_ISO}}, | ||
369 | {RSP_OK, 722,722, -1, 723, 5, {0}, "+VLS=17\r"}, /* set "Endgeraetemodus" */ | ||
370 | {RSP_OK, 723,723, -1, 724, 5, {0}}, | ||
371 | {RSP_ZVLS, 724,724, 17, 750,50, {ACT_ACCEPTED}}, | ||
372 | {RSP_ERROR, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}}, | ||
373 | {EV_TIMEOUT, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}}, | ||
374 | {RSP_ZSAU, 700,729,ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT}}, | ||
375 | {RSP_ZSAU, 700,729,ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT}}, | ||
376 | {RSP_ZSAU, 700,729,ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT}}, | ||
377 | |||
378 | {EV_TIMEOUT, 750,750, -1, 0, 0, {ACT_CONNTIMEOUT}}, | ||
379 | |||
380 | /* misc. */ | ||
381 | {EV_PROTO_L2, -1, -1, -1, -1,-1, {ACT_PROTO_L2}}, //FIXME | ||
382 | |||
383 | {RSP_ZCON, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
384 | {RSP_ZCCR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
385 | {RSP_ZAOC, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
386 | {RSP_ZCSTR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME | ||
387 | |||
388 | {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}}, | ||
389 | {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}}, | ||
390 | {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}}, | ||
391 | {RSP_LAST} | ||
392 | }; | ||
393 | |||
394 | |||
395 | #if 0 | ||
396 | static struct reply_t tab_nocid[]= /* no dle mode */ //FIXME aenderungen uebernehmen | ||
397 | { | ||
398 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */ | ||
399 | |||
400 | {RSP_ANY, -1, -1, -1, -1,-1, ACT_WARN, NULL}, | ||
401 | {RSP_LAST,0,0,0,0,0,0} | ||
402 | }; | ||
403 | |||
404 | static struct reply_t tab_cid[] = /* no dle mode */ //FIXME aenderungen uebernehmen | ||
405 | { | ||
406 | /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */ | ||
407 | |||
408 | {RSP_ANY, -1, -1, -1, -1,-1, ACT_WARN, NULL}, | ||
409 | {RSP_LAST,0,0,0,0,0,0} | ||
410 | }; | ||
411 | #endif | ||
412 | |||
413 | static struct resp_type_t resp_type[]= | ||
414 | { | ||
415 | /*{"", RSP_EMPTY, RT_NOTHING},*/ | ||
416 | {"OK", RSP_OK, RT_NOTHING}, | ||
417 | {"ERROR", RSP_ERROR, RT_NOTHING}, | ||
418 | {"ZSAU", RSP_ZSAU, RT_ZSAU}, | ||
419 | {"ZCAU", RSP_ZCAU, RT_ZCAU}, | ||
420 | {"RING", RSP_RING, RT_RING}, | ||
421 | {"ZGCI", RSP_ZGCI, RT_NUMBER}, | ||
422 | {"ZVLS", RSP_ZVLS, RT_NUMBER}, | ||
423 | {"ZCTP", RSP_ZCTP, RT_NUMBER}, | ||
424 | {"ZDLE", RSP_ZDLE, RT_NUMBER}, | ||
425 | {"ZCFGT", RSP_ZCFGT, RT_NUMBER}, | ||
426 | {"ZCCR", RSP_ZCCR, RT_NUMBER}, | ||
427 | {"ZMWI", RSP_ZMWI, RT_NUMBER}, | ||
428 | {"ZHLC", RSP_ZHLC, RT_STRING}, | ||
429 | {"ZBC", RSP_ZBC, RT_STRING}, | ||
430 | {"NMBR", RSP_NMBR, RT_STRING}, | ||
431 | {"ZCPN", RSP_ZCPN, RT_STRING}, | ||
432 | {"ZCON", RSP_ZCON, RT_STRING}, | ||
433 | {"ZAOC", RSP_ZAOC, RT_STRING}, | ||
434 | {"ZCSTR", RSP_ZCSTR, RT_STRING}, | ||
435 | {"ZCFG", RSP_ZCFG, RT_HEX}, | ||
436 | {"ZLOG", RSP_ZLOG, RT_NOTHING}, | ||
437 | {"ZABINFO", RSP_ZABINFO, RT_NOTHING}, | ||
438 | {"ZSMLSTCHG", RSP_ZSMLSTCHG, RT_NOTHING}, | ||
439 | {NULL,0,0} | ||
440 | }; | ||
441 | |||
442 | /* | ||
443 | * Get integer from char-pointer | ||
444 | */ | ||
445 | static int isdn_getnum(char *p) | ||
446 | { | ||
447 | int v = -1; | ||
448 | |||
449 | IFNULLRETVAL(p, -1); | ||
450 | |||
451 | dbg(DEBUG_TRANSCMD, "string: %s", p); | ||
452 | |||
453 | while (*p >= '0' && *p <= '9') | ||
454 | v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p++) - '0'); | ||
455 | if (*p) | ||
456 | v = -1; /* invalid Character */ | ||
457 | return v; | ||
458 | } | ||
459 | |||
460 | /* | ||
461 | * Get integer from char-pointer | ||
462 | */ | ||
463 | static int isdn_gethex(char *p) | ||
464 | { | ||
465 | int v = 0; | ||
466 | int c; | ||
467 | |||
468 | IFNULLRETVAL(p, -1); | ||
469 | |||
470 | dbg(DEBUG_TRANSCMD, "string: %s", p); | ||
471 | |||
472 | if (!*p) | ||
473 | return -1; | ||
474 | |||
475 | do { | ||
476 | if (v > (INT_MAX - 15) / 16) | ||
477 | return -1; | ||
478 | c = *p; | ||
479 | if (c >= '0' && c <= '9') | ||
480 | c -= '0'; | ||
481 | else if (c >= 'a' && c <= 'f') | ||
482 | c -= 'a' - 10; | ||
483 | else if (c >= 'A' && c <= 'F') | ||
484 | c -= 'A' - 10; | ||
485 | else | ||
486 | return -1; | ||
487 | v = v * 16 + c; | ||
488 | } while (*++p); | ||
489 | |||
490 | return v; | ||
491 | } | ||
492 | |||
493 | static inline void new_index(atomic_t *index, int max) | ||
494 | { | ||
495 | if (atomic_read(index) == max) //FIXME race? | ||
496 | atomic_set(index, 0); | ||
497 | else | ||
498 | atomic_inc(index); | ||
499 | } | ||
500 | |||
501 | /* retrieve CID from parsed response | ||
502 | * returns 0 if no CID, -1 if invalid CID, or CID value 1..65535 | ||
503 | */ | ||
504 | static int cid_of_response(char *s) | ||
505 | { | ||
506 | int cid; | ||
507 | |||
508 | if (s[-1] != ';') | ||
509 | return 0; /* no CID separator */ | ||
510 | cid = isdn_getnum(s); | ||
511 | if (cid < 0) | ||
512 | return 0; /* CID not numeric */ | ||
513 | if (cid < 1 || cid > 65535) | ||
514 | return -1; /* CID out of range */ | ||
515 | return cid; | ||
516 | //FIXME is ;<digit>+ at end of non-CID response really impossible? | ||
517 | } | ||
518 | |||
519 | /* This function will be called via task queue from the callback handler. | ||
520 | * We received a modem response and have to handle it.. | ||
521 | */ | ||
522 | void gigaset_handle_modem_response(struct cardstate *cs) | ||
523 | { | ||
524 | unsigned char *argv[MAX_REC_PARAMS + 1]; | ||
525 | int params; | ||
526 | int i, j; | ||
527 | struct resp_type_t *rt; | ||
528 | int curarg; | ||
529 | unsigned long flags; | ||
530 | unsigned next, tail, head; | ||
531 | struct event_t *event; | ||
532 | int resp_code; | ||
533 | int param_type; | ||
534 | int abort; | ||
535 | size_t len; | ||
536 | int cid; | ||
537 | int rawstring; | ||
538 | |||
539 | IFNULLRET(cs); | ||
540 | |||
541 | len = cs->cbytes; | ||
542 | if (!len) { | ||
543 | /* ignore additional LFs/CRs (M10x config mode or cx100) */ | ||
544 | dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]); | ||
545 | return; | ||
546 | } | ||
547 | cs->respdata[len] = 0; | ||
548 | dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata); | ||
549 | argv[0] = cs->respdata; | ||
550 | params = 1; | ||
551 | if (cs->at_state.getstring) { | ||
552 | /* getstring only allowed without cid at the moment */ | ||
553 | cs->at_state.getstring = 0; | ||
554 | rawstring = 1; | ||
555 | cid = 0; | ||
556 | } else { | ||
557 | /* parse line */ | ||
558 | for (i = 0; i < len; i++) | ||
559 | switch (cs->respdata[i]) { | ||
560 | case ';': | ||
561 | case ',': | ||
562 | case '=': | ||
563 | if (params > MAX_REC_PARAMS) { | ||
564 | warn("too many parameters in response"); | ||
565 | /* need last parameter (might be CID) */ | ||
566 | params--; | ||
567 | } | ||
568 | argv[params++] = cs->respdata + i + 1; | ||
569 | } | ||
570 | |||
571 | rawstring = 0; | ||
572 | cid = params > 1 ? cid_of_response(argv[params-1]) : 0; | ||
573 | if (cid < 0) { | ||
574 | gigaset_add_event(cs, &cs->at_state, RSP_INVAL, | ||
575 | NULL, 0, NULL); | ||
576 | return; | ||
577 | } | ||
578 | |||
579 | for (j = 1; j < params; ++j) | ||
580 | argv[j][-1] = 0; | ||
581 | |||
582 | dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]); | ||
583 | if (cid) { | ||
584 | --params; | ||
585 | dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]); | ||
586 | } | ||
587 | dbg(DEBUG_TRANSCMD, "available params: %d", params - 1); | ||
588 | for (j = 1; j < params; j++) | ||
589 | dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]); | ||
590 | } | ||
591 | |||
592 | spin_lock_irqsave(&cs->ev_lock, flags); | ||
593 | head = atomic_read(&cs->ev_head); | ||
594 | tail = atomic_read(&cs->ev_tail); | ||
595 | |||
596 | abort = 1; | ||
597 | curarg = 0; | ||
598 | while (curarg < params) { | ||
599 | next = (tail + 1) % MAX_EVENTS; | ||
600 | if (unlikely(next == head)) { | ||
601 | err("event queue full"); | ||
602 | break; | ||
603 | } | ||
604 | |||
605 | event = cs->events + tail; | ||
606 | event->at_state = NULL; | ||
607 | event->cid = cid; | ||
608 | event->ptr = NULL; | ||
609 | event->arg = NULL; | ||
610 | tail = next; | ||
611 | |||
612 | if (rawstring) { | ||
613 | resp_code = RSP_STRING; | ||
614 | param_type = RT_STRING; | ||
615 | } else { | ||
616 | for (rt = resp_type; rt->response; ++rt) | ||
617 | if (!strcmp(argv[curarg], rt->response)) | ||
618 | break; | ||
619 | |||
620 | if (!rt->response) { | ||
621 | event->type = RSP_UNKNOWN; | ||
622 | warn("unknown modem response: %s", | ||
623 | argv[curarg]); | ||
624 | break; | ||
625 | } | ||
626 | |||
627 | resp_code = rt->resp_code; | ||
628 | param_type = rt->type; | ||
629 | ++curarg; | ||
630 | } | ||
631 | |||
632 | event->type = resp_code; | ||
633 | |||
634 | switch (param_type) { | ||
635 | case RT_NOTHING: | ||
636 | break; | ||
637 | case RT_RING: | ||
638 | if (!cid) { | ||
639 | err("received RING without CID!"); | ||
640 | event->type = RSP_INVAL; | ||
641 | abort = 1; | ||
642 | } else { | ||
643 | event->cid = 0; | ||
644 | event->parameter = cid; | ||
645 | abort = 0; | ||
646 | } | ||
647 | break; | ||
648 | case RT_ZSAU: | ||
649 | if (curarg >= params) { | ||
650 | event->parameter = ZSAU_NONE; | ||
651 | break; | ||
652 | } | ||
653 | if (!strcmp(argv[curarg], "OUTGOING_CALL_PROCEEDING")) | ||
654 | event->parameter = ZSAU_OUTGOING_CALL_PROCEEDING; | ||
655 | else if (!strcmp(argv[curarg], "CALL_DELIVERED")) | ||
656 | event->parameter = ZSAU_CALL_DELIVERED; | ||
657 | else if (!strcmp(argv[curarg], "ACTIVE")) | ||
658 | event->parameter = ZSAU_ACTIVE; | ||
659 | else if (!strcmp(argv[curarg], "DISCONNECT_IND")) | ||
660 | event->parameter = ZSAU_DISCONNECT_IND; | ||
661 | else if (!strcmp(argv[curarg], "NULL")) | ||
662 | event->parameter = ZSAU_NULL; | ||
663 | else if (!strcmp(argv[curarg], "DISCONNECT_REQ")) | ||
664 | event->parameter = ZSAU_DISCONNECT_REQ; | ||
665 | else { | ||
666 | event->parameter = ZSAU_UNKNOWN; | ||
667 | warn("%s: unknown parameter %s after ZSAU", | ||
668 | __func__, argv[curarg]); | ||
669 | } | ||
670 | ++curarg; | ||
671 | break; | ||
672 | case RT_STRING: | ||
673 | if (curarg < params) { | ||
674 | len = strlen(argv[curarg]) + 1; | ||
675 | event->ptr = kmalloc(len, GFP_ATOMIC); | ||
676 | if (event->ptr) | ||
677 | memcpy(event->ptr, argv[curarg], len); | ||
678 | else | ||
679 | err("no memory for string!"); | ||
680 | ++curarg; | ||
681 | } | ||
682 | #ifdef CONFIG_GIGASET_DEBUG | ||
683 | if (!event->ptr) | ||
684 | dbg(DEBUG_CMD, "string==NULL"); | ||
685 | else | ||
686 | dbg(DEBUG_CMD, | ||
687 | "string==%s", (char *) event->ptr); | ||
688 | #endif | ||
689 | break; | ||
690 | case RT_ZCAU: | ||
691 | event->parameter = -1; | ||
692 | if (curarg + 1 < params) { | ||
693 | i = isdn_gethex(argv[curarg]); | ||
694 | j = isdn_gethex(argv[curarg + 1]); | ||
695 | if (i >= 0 && i < 256 && j >= 0 && j < 256) | ||
696 | event->parameter = (unsigned) i << 8 | ||
697 | | j; | ||
698 | curarg += 2; | ||
699 | } else | ||
700 | curarg = params - 1; | ||
701 | break; | ||
702 | case RT_NUMBER: | ||
703 | case RT_HEX: | ||
704 | if (curarg < params) { | ||
705 | if (param_type == RT_HEX) | ||
706 | event->parameter = | ||
707 | isdn_gethex(argv[curarg]); | ||
708 | else | ||
709 | event->parameter = | ||
710 | isdn_getnum(argv[curarg]); | ||
711 | ++curarg; | ||
712 | } else | ||
713 | event->parameter = -1; | ||
714 | #ifdef CONFIG_GIGASET_DEBUG | ||
715 | dbg(DEBUG_CMD, "parameter==%d", event->parameter); | ||
716 | #endif | ||
717 | break; | ||
718 | } | ||
719 | |||
720 | if (resp_code == RSP_ZDLE) | ||
721 | cs->dle = event->parameter; | ||
722 | |||
723 | if (abort) | ||
724 | break; | ||
725 | } | ||
726 | |||
727 | atomic_set(&cs->ev_tail, tail); | ||
728 | spin_unlock_irqrestore(&cs->ev_lock, flags); | ||
729 | |||
730 | if (curarg != params) | ||
731 | dbg(DEBUG_ANY, "invalid number of processed parameters: %d/%d", | ||
732 | curarg, params); | ||
733 | } | ||
734 | EXPORT_SYMBOL_GPL(gigaset_handle_modem_response); | ||
735 | |||
736 | /* disconnect | ||
737 | * process closing of connection associated with given AT state structure | ||
738 | */ | ||
739 | static void disconnect(struct at_state_t **at_state_p) | ||
740 | { | ||
741 | unsigned long flags; | ||
742 | struct bc_state *bcs; | ||
743 | struct cardstate *cs; | ||
744 | |||
745 | IFNULLRET(at_state_p); | ||
746 | IFNULLRET(*at_state_p); | ||
747 | bcs = (*at_state_p)->bcs; | ||
748 | cs = (*at_state_p)->cs; | ||
749 | IFNULLRET(cs); | ||
750 | |||
751 | new_index(&(*at_state_p)->seq_index, MAX_SEQ_INDEX); | ||
752 | |||
753 | /* revert to selected idle mode */ | ||
754 | if (!atomic_read(&cs->cidmode)) { | ||
755 | cs->at_state.pending_commands |= PC_UMMODE; | ||
756 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
757 | dbg(DEBUG_CMD, "Scheduling PC_UMMODE"); | ||
758 | } | ||
759 | |||
760 | if (bcs) { | ||
761 | /* B channel assigned: invoke hardware specific handler */ | ||
762 | cs->ops->close_bchannel(bcs); | ||
763 | } else { | ||
764 | /* no B channel assigned: just deallocate */ | ||
765 | spin_lock_irqsave(&cs->lock, flags); | ||
766 | list_del(&(*at_state_p)->list); | ||
767 | kfree(*at_state_p); | ||
768 | *at_state_p = NULL; | ||
769 | spin_unlock_irqrestore(&cs->lock, flags); | ||
770 | } | ||
771 | } | ||
772 | |||
773 | /* get_free_channel | ||
774 | * get a free AT state structure: either one of those associated with the | ||
775 | * B channels of the Gigaset device, or if none of those is available, | ||
776 | * a newly allocated one with bcs=NULL | ||
777 | * The structure should be freed by calling disconnect() after use. | ||
778 | */ | ||
779 | static inline struct at_state_t *get_free_channel(struct cardstate *cs, | ||
780 | int cid) | ||
781 | /* cids: >0: siemens-cid | ||
782 | 0: without cid | ||
783 | -1: no cid assigned yet | ||
784 | */ | ||
785 | { | ||
786 | unsigned long flags; | ||
787 | int i; | ||
788 | struct at_state_t *ret; | ||
789 | |||
790 | for (i = 0; i < cs->channels; ++i) | ||
791 | if (gigaset_get_channel(cs->bcs + i)) { | ||
792 | ret = &cs->bcs[i].at_state; | ||
793 | ret->cid = cid; | ||
794 | return ret; | ||
795 | } | ||
796 | |||
797 | spin_lock_irqsave(&cs->lock, flags); | ||
798 | ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC); | ||
799 | if (ret) { | ||
800 | gigaset_at_init(ret, NULL, cs, cid); | ||
801 | list_add(&ret->list, &cs->temp_at_states); | ||
802 | } | ||
803 | spin_unlock_irqrestore(&cs->lock, flags); | ||
804 | return ret; | ||
805 | } | ||
806 | |||
807 | static void init_failed(struct cardstate *cs, int mode) | ||
808 | { | ||
809 | int i; | ||
810 | struct at_state_t *at_state; | ||
811 | |||
812 | cs->at_state.pending_commands &= ~PC_INIT; | ||
813 | atomic_set(&cs->mode, mode); | ||
814 | atomic_set(&cs->mstate, MS_UNINITIALIZED); | ||
815 | gigaset_free_channels(cs); | ||
816 | for (i = 0; i < cs->channels; ++i) { | ||
817 | at_state = &cs->bcs[i].at_state; | ||
818 | if (at_state->pending_commands & PC_CID) { | ||
819 | at_state->pending_commands &= ~PC_CID; | ||
820 | at_state->pending_commands |= PC_NOCID; | ||
821 | atomic_set(&cs->commands_pending, 1); | ||
822 | } | ||
823 | } | ||
824 | } | ||
825 | |||
826 | static void schedule_init(struct cardstate *cs, int state) | ||
827 | { | ||
828 | if (cs->at_state.pending_commands & PC_INIT) { | ||
829 | dbg(DEBUG_CMD, "not scheduling PC_INIT again"); | ||
830 | return; | ||
831 | } | ||
832 | atomic_set(&cs->mstate, state); | ||
833 | atomic_set(&cs->mode, M_UNKNOWN); | ||
834 | gigaset_block_channels(cs); | ||
835 | cs->at_state.pending_commands |= PC_INIT; | ||
836 | atomic_set(&cs->commands_pending, 1); | ||
837 | dbg(DEBUG_CMD, "Scheduling PC_INIT"); | ||
838 | } | ||
839 | |||
840 | /* Add "AT" to a command, add the cid, dle encode it, send the result to the hardware. */ | ||
841 | static void send_command(struct cardstate *cs, const char *cmd, int cid, | ||
842 | int dle, gfp_t kmallocflags) | ||
843 | { | ||
844 | size_t cmdlen, buflen; | ||
845 | char *cmdpos, *cmdbuf, *cmdtail; | ||
846 | |||
847 | cmdlen = strlen(cmd); | ||
848 | buflen = 11 + cmdlen; | ||
849 | |||
850 | if (likely(buflen > cmdlen)) { | ||
851 | cmdbuf = kmalloc(buflen, kmallocflags); | ||
852 | if (likely(cmdbuf != NULL)) { | ||
853 | cmdpos = cmdbuf + 9; | ||
854 | cmdtail = cmdpos + cmdlen; | ||
855 | memcpy(cmdpos, cmd, cmdlen); | ||
856 | |||
857 | if (cid > 0 && cid <= 65535) { | ||
858 | do { | ||
859 | *--cmdpos = '0' + cid % 10; | ||
860 | cid /= 10; | ||
861 | ++cmdlen; | ||
862 | } while (cid); | ||
863 | } | ||
864 | |||
865 | cmdlen += 2; | ||
866 | *--cmdpos = 'T'; | ||
867 | *--cmdpos = 'A'; | ||
868 | |||
869 | if (dle) { | ||
870 | cmdlen += 4; | ||
871 | *--cmdpos = '('; | ||
872 | *--cmdpos = 0x10; | ||
873 | *cmdtail++ = 0x10; | ||
874 | *cmdtail++ = ')'; | ||
875 | } | ||
876 | |||
877 | cs->ops->write_cmd(cs, cmdpos, cmdlen, NULL); | ||
878 | kfree(cmdbuf); | ||
879 | } else | ||
880 | err("no memory for command buffer"); | ||
881 | } else | ||
882 | err("overflow in buflen"); | ||
883 | } | ||
884 | |||
885 | static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid) | ||
886 | { | ||
887 | struct at_state_t *at_state; | ||
888 | int i; | ||
889 | unsigned long flags; | ||
890 | |||
891 | if (cid == 0) | ||
892 | return &cs->at_state; | ||
893 | |||
894 | for (i = 0; i < cs->channels; ++i) | ||
895 | if (cid == cs->bcs[i].at_state.cid) | ||
896 | return &cs->bcs[i].at_state; | ||
897 | |||
898 | spin_lock_irqsave(&cs->lock, flags); | ||
899 | |||
900 | list_for_each_entry(at_state, &cs->temp_at_states, list) | ||
901 | if (cid == at_state->cid) { | ||
902 | spin_unlock_irqrestore(&cs->lock, flags); | ||
903 | return at_state; | ||
904 | } | ||
905 | |||
906 | spin_unlock_irqrestore(&cs->lock, flags); | ||
907 | |||
908 | return NULL; | ||
909 | } | ||
910 | |||
911 | static void bchannel_down(struct bc_state *bcs) | ||
912 | { | ||
913 | IFNULLRET(bcs); | ||
914 | IFNULLRET(bcs->cs); | ||
915 | |||
916 | if (bcs->chstate & CHS_B_UP) { | ||
917 | bcs->chstate &= ~CHS_B_UP; | ||
918 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP); | ||
919 | } | ||
920 | |||
921 | if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) { | ||
922 | bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL); | ||
923 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP); | ||
924 | } | ||
925 | |||
926 | gigaset_free_channel(bcs); | ||
927 | |||
928 | gigaset_bcs_reinit(bcs); | ||
929 | } | ||
930 | |||
931 | static void bchannel_up(struct bc_state *bcs) | ||
932 | { | ||
933 | IFNULLRET(bcs); | ||
934 | |||
935 | if (!(bcs->chstate & CHS_D_UP)) { | ||
936 | notice("%s: D channel not up", __func__); | ||
937 | bcs->chstate |= CHS_D_UP; | ||
938 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN); | ||
939 | } | ||
940 | |||
941 | if (bcs->chstate & CHS_B_UP) { | ||
942 | notice("%s: B channel already up", __func__); | ||
943 | return; | ||
944 | } | ||
945 | |||
946 | bcs->chstate |= CHS_B_UP; | ||
947 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN); | ||
948 | } | ||
949 | |||
950 | static void start_dial(struct at_state_t *at_state, void *data, int seq_index) | ||
951 | { | ||
952 | struct bc_state *bcs = at_state->bcs; | ||
953 | struct cardstate *cs = at_state->cs; | ||
954 | int retval; | ||
955 | |||
956 | bcs->chstate |= CHS_NOTIFY_LL; | ||
957 | //atomic_set(&bcs->status, BCS_INIT); | ||
958 | |||
959 | if (atomic_read(&at_state->seq_index) != seq_index) | ||
960 | goto error; | ||
961 | |||
962 | retval = gigaset_isdn_setup_dial(at_state, data); | ||
963 | if (retval != 0) | ||
964 | goto error; | ||
965 | |||
966 | |||
967 | at_state->pending_commands |= PC_CID; | ||
968 | dbg(DEBUG_CMD, "Scheduling PC_CID"); | ||
969 | //#ifdef GIG_MAYINITONDIAL | ||
970 | // if (atomic_read(&cs->MState) == MS_UNKNOWN) { | ||
971 | // cs->at_state.pending_commands |= PC_INIT; | ||
972 | // dbg(DEBUG_CMD, "Scheduling PC_INIT"); | ||
973 | // } | ||
974 | //#endif | ||
975 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
976 | return; | ||
977 | |||
978 | error: | ||
979 | at_state->pending_commands |= PC_NOCID; | ||
980 | dbg(DEBUG_CMD, "Scheduling PC_NOCID"); | ||
981 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
982 | return; | ||
983 | } | ||
984 | |||
985 | static void start_accept(struct at_state_t *at_state) | ||
986 | { | ||
987 | struct cardstate *cs = at_state->cs; | ||
988 | int retval; | ||
989 | |||
990 | retval = gigaset_isdn_setup_accept(at_state); | ||
991 | |||
992 | if (retval == 0) { | ||
993 | at_state->pending_commands |= PC_ACCEPT; | ||
994 | dbg(DEBUG_CMD, "Scheduling PC_ACCEPT"); | ||
995 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
996 | } else { | ||
997 | //FIXME | ||
998 | at_state->pending_commands |= PC_HUP; | ||
999 | dbg(DEBUG_CMD, "Scheduling PC_HUP"); | ||
1000 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
1001 | } | ||
1002 | } | ||
1003 | |||
1004 | static void do_start(struct cardstate *cs) | ||
1005 | { | ||
1006 | gigaset_free_channels(cs); | ||
1007 | |||
1008 | if (atomic_read(&cs->mstate) != MS_LOCKED) | ||
1009 | schedule_init(cs, MS_INIT); | ||
1010 | |||
1011 | gigaset_i4l_cmd(cs, ISDN_STAT_RUN); | ||
1012 | // FIXME: not in locked mode | ||
1013 | // FIXME 2: only after init sequence | ||
1014 | |||
1015 | cs->waiting = 0; | ||
1016 | wake_up(&cs->waitqueue); | ||
1017 | } | ||
1018 | |||
1019 | static void finish_shutdown(struct cardstate *cs) | ||
1020 | { | ||
1021 | if (atomic_read(&cs->mstate) != MS_LOCKED) { | ||
1022 | atomic_set(&cs->mstate, MS_UNINITIALIZED); | ||
1023 | atomic_set(&cs->mode, M_UNKNOWN); | ||
1024 | } | ||
1025 | |||
1026 | /* The rest is done by cleanup_cs () in user mode. */ | ||
1027 | |||
1028 | cs->cmd_result = -ENODEV; | ||
1029 | cs->waiting = 0; | ||
1030 | wake_up_interruptible(&cs->waitqueue); | ||
1031 | } | ||
1032 | |||
1033 | static void do_shutdown(struct cardstate *cs) | ||
1034 | { | ||
1035 | gigaset_block_channels(cs); | ||
1036 | |||
1037 | if (atomic_read(&cs->mstate) == MS_READY) { | ||
1038 | atomic_set(&cs->mstate, MS_SHUTDOWN); | ||
1039 | cs->at_state.pending_commands |= PC_SHUTDOWN; | ||
1040 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
1041 | dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN"); //FIXME | ||
1042 | //gigaset_schedule_event(cs); //FIXME | ||
1043 | } else | ||
1044 | finish_shutdown(cs); | ||
1045 | } | ||
1046 | |||
1047 | static void do_stop(struct cardstate *cs) | ||
1048 | { | ||
1049 | do_shutdown(cs); | ||
1050 | } | ||
1051 | |||
1052 | /* Entering cid mode or getting a cid failed: | ||
1053 | * try to initialize the device and try again. | ||
1054 | * | ||
1055 | * channel >= 0: getting cid for the channel failed | ||
1056 | * channel < 0: entering cid mode failed | ||
1057 | * | ||
1058 | * returns 0 on failure | ||
1059 | */ | ||
1060 | static int reinit_and_retry(struct cardstate *cs, int channel) | ||
1061 | { | ||
1062 | int i; | ||
1063 | |||
1064 | if (--cs->retry_count <= 0) | ||
1065 | return 0; | ||
1066 | |||
1067 | for (i = 0; i < cs->channels; ++i) | ||
1068 | if (cs->bcs[i].at_state.cid > 0) | ||
1069 | return 0; | ||
1070 | |||
1071 | if (channel < 0) | ||
1072 | warn("Could not enter cid mode. Reinit device and try again."); | ||
1073 | else { | ||
1074 | warn("Could not get a call id. Reinit device and try again."); | ||
1075 | cs->bcs[channel].at_state.pending_commands |= PC_CID; | ||
1076 | } | ||
1077 | schedule_init(cs, MS_INIT); | ||
1078 | return 1; | ||
1079 | } | ||
1080 | |||
1081 | static int at_state_invalid(struct cardstate *cs, | ||
1082 | struct at_state_t *test_ptr) | ||
1083 | { | ||
1084 | unsigned long flags; | ||
1085 | unsigned channel; | ||
1086 | struct at_state_t *at_state; | ||
1087 | int retval = 0; | ||
1088 | |||
1089 | spin_lock_irqsave(&cs->lock, flags); | ||
1090 | |||
1091 | if (test_ptr == &cs->at_state) | ||
1092 | goto exit; | ||
1093 | |||
1094 | list_for_each_entry(at_state, &cs->temp_at_states, list) | ||
1095 | if (at_state == test_ptr) | ||
1096 | goto exit; | ||
1097 | |||
1098 | for (channel = 0; channel < cs->channels; ++channel) | ||
1099 | if (&cs->bcs[channel].at_state == test_ptr) | ||
1100 | goto exit; | ||
1101 | |||
1102 | retval = 1; | ||
1103 | exit: | ||
1104 | spin_unlock_irqrestore(&cs->lock, flags); | ||
1105 | return retval; | ||
1106 | } | ||
1107 | |||
1108 | static void handle_icall(struct cardstate *cs, struct bc_state *bcs, | ||
1109 | struct at_state_t **p_at_state) | ||
1110 | { | ||
1111 | int retval; | ||
1112 | struct at_state_t *at_state = *p_at_state; | ||
1113 | |||
1114 | retval = gigaset_isdn_icall(at_state); | ||
1115 | switch (retval) { | ||
1116 | case ICALL_ACCEPT: | ||
1117 | break; | ||
1118 | default: | ||
1119 | err("internal error: disposition=%d", retval); | ||
1120 | /* --v-- fall through --v-- */ | ||
1121 | case ICALL_IGNORE: | ||
1122 | case ICALL_REJECT: | ||
1123 | /* hang up actively | ||
1124 | * Device doc says that would reject the call. | ||
1125 | * In fact it doesn't. | ||
1126 | */ | ||
1127 | at_state->pending_commands |= PC_HUP; | ||
1128 | atomic_set(&cs->commands_pending, 1); | ||
1129 | break; | ||
1130 | } | ||
1131 | } | ||
1132 | |||
1133 | static int do_lock(struct cardstate *cs) | ||
1134 | { | ||
1135 | int mode; | ||
1136 | int i; | ||
1137 | |||
1138 | switch (atomic_read(&cs->mstate)) { | ||
1139 | case MS_UNINITIALIZED: | ||
1140 | case MS_READY: | ||
1141 | if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) || | ||
1142 | cs->at_state.pending_commands) | ||
1143 | return -EBUSY; | ||
1144 | |||
1145 | for (i = 0; i < cs->channels; ++i) | ||
1146 | if (cs->bcs[i].at_state.pending_commands) | ||
1147 | return -EBUSY; | ||
1148 | |||
1149 | if (!gigaset_get_channels(cs)) | ||
1150 | return -EBUSY; | ||
1151 | |||
1152 | break; | ||
1153 | case MS_LOCKED: | ||
1154 | //retval = -EACCES; | ||
1155 | break; | ||
1156 | default: | ||
1157 | return -EBUSY; | ||
1158 | } | ||
1159 | |||
1160 | mode = atomic_read(&cs->mode); | ||
1161 | atomic_set(&cs->mstate, MS_LOCKED); | ||
1162 | atomic_set(&cs->mode, M_UNKNOWN); | ||
1163 | //FIXME reset card state / at states / bcs states | ||
1164 | |||
1165 | return mode; | ||
1166 | } | ||
1167 | |||
1168 | static int do_unlock(struct cardstate *cs) | ||
1169 | { | ||
1170 | if (atomic_read(&cs->mstate) != MS_LOCKED) | ||
1171 | return -EINVAL; | ||
1172 | |||
1173 | atomic_set(&cs->mstate, MS_UNINITIALIZED); | ||
1174 | atomic_set(&cs->mode, M_UNKNOWN); | ||
1175 | gigaset_free_channels(cs); | ||
1176 | //FIXME reset card state / at states / bcs states | ||
1177 | if (atomic_read(&cs->connected)) | ||
1178 | schedule_init(cs, MS_INIT); | ||
1179 | |||
1180 | return 0; | ||
1181 | } | ||
1182 | |||
1183 | static void do_action(int action, struct cardstate *cs, | ||
1184 | struct bc_state *bcs, | ||
1185 | struct at_state_t **p_at_state, char **pp_command, | ||
1186 | int *p_genresp, int *p_resp_code, | ||
1187 | struct event_t *ev) | ||
1188 | { | ||
1189 | struct at_state_t *at_state = *p_at_state; | ||
1190 | struct at_state_t *at_state2; | ||
1191 | unsigned long flags; | ||
1192 | |||
1193 | int channel; | ||
1194 | |||
1195 | unsigned char *s, *e; | ||
1196 | int i; | ||
1197 | unsigned long val; | ||
1198 | |||
1199 | switch (action) { | ||
1200 | case ACT_NOTHING: | ||
1201 | break; | ||
1202 | case ACT_TIMEOUT: | ||
1203 | at_state->waiting = 1; | ||
1204 | break; | ||
1205 | case ACT_INIT: | ||
1206 | //FIXME setup everything | ||
1207 | cs->at_state.pending_commands &= ~PC_INIT; | ||
1208 | cs->cur_at_seq = SEQ_NONE; | ||
1209 | atomic_set(&cs->mode, M_UNIMODEM); | ||
1210 | if (!atomic_read(&cs->cidmode)) { | ||
1211 | gigaset_free_channels(cs); | ||
1212 | atomic_set(&cs->mstate, MS_READY); | ||
1213 | break; | ||
1214 | } | ||
1215 | cs->at_state.pending_commands |= PC_CIDMODE; | ||
1216 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
1217 | dbg(DEBUG_CMD, "Scheduling PC_CIDMODE"); | ||
1218 | break; | ||
1219 | case ACT_FAILINIT: | ||
1220 | warn("Could not initialize the device."); | ||
1221 | cs->dle = 0; | ||
1222 | init_failed(cs, M_UNKNOWN); | ||
1223 | cs->cur_at_seq = SEQ_NONE; | ||
1224 | break; | ||
1225 | case ACT_CONFIGMODE: | ||
1226 | init_failed(cs, M_CONFIG); | ||
1227 | cs->cur_at_seq = SEQ_NONE; | ||
1228 | break; | ||
1229 | case ACT_SETDLE1: | ||
1230 | cs->dle = 1; | ||
1231 | /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */ | ||
1232 | cs->inbuf[0].inputstate &= | ||
1233 | ~(INS_command | INS_DLE_command); | ||
1234 | break; | ||
1235 | case ACT_SETDLE0: | ||
1236 | cs->dle = 0; | ||
1237 | cs->inbuf[0].inputstate = | ||
1238 | (cs->inbuf[0].inputstate & ~INS_DLE_command) | ||
1239 | | INS_command; | ||
1240 | break; | ||
1241 | case ACT_CMODESET: | ||
1242 | if (atomic_read(&cs->mstate) == MS_INIT || | ||
1243 | atomic_read(&cs->mstate) == MS_RECOVER) { | ||
1244 | gigaset_free_channels(cs); | ||
1245 | atomic_set(&cs->mstate, MS_READY); | ||
1246 | } | ||
1247 | atomic_set(&cs->mode, M_CID); | ||
1248 | cs->cur_at_seq = SEQ_NONE; | ||
1249 | break; | ||
1250 | case ACT_UMODESET: | ||
1251 | atomic_set(&cs->mode, M_UNIMODEM); | ||
1252 | cs->cur_at_seq = SEQ_NONE; | ||
1253 | break; | ||
1254 | case ACT_FAILCMODE: | ||
1255 | cs->cur_at_seq = SEQ_NONE; | ||
1256 | if (atomic_read(&cs->mstate) == MS_INIT || | ||
1257 | atomic_read(&cs->mstate) == MS_RECOVER) { | ||
1258 | init_failed(cs, M_UNKNOWN); | ||
1259 | break; | ||
1260 | } | ||
1261 | if (!reinit_and_retry(cs, -1)) | ||
1262 | schedule_init(cs, MS_RECOVER); | ||
1263 | break; | ||
1264 | case ACT_FAILUMODE: | ||
1265 | cs->cur_at_seq = SEQ_NONE; | ||
1266 | schedule_init(cs, MS_RECOVER); | ||
1267 | break; | ||
1268 | case ACT_HUPMODEM: | ||
1269 | /* send "+++" (hangup in unimodem mode) */ | ||
1270 | cs->ops->write_cmd(cs, "+++", 3, NULL); | ||
1271 | break; | ||
1272 | case ACT_RING: | ||
1273 | /* get fresh AT state structure for new CID */ | ||
1274 | at_state2 = get_free_channel(cs, ev->parameter); | ||
1275 | if (!at_state2) { | ||
1276 | warn("RING ignored: " | ||
1277 | "could not allocate channel structure"); | ||
1278 | break; | ||
1279 | } | ||
1280 | |||
1281 | /* initialize AT state structure | ||
1282 | * note that bcs may be NULL if no B channel is free | ||
1283 | */ | ||
1284 | at_state2->ConState = 700; | ||
1285 | kfree(at_state2->str_var[STR_NMBR]); | ||
1286 | at_state2->str_var[STR_NMBR] = NULL; | ||
1287 | kfree(at_state2->str_var[STR_ZCPN]); | ||
1288 | at_state2->str_var[STR_ZCPN] = NULL; | ||
1289 | kfree(at_state2->str_var[STR_ZBC]); | ||
1290 | at_state2->str_var[STR_ZBC] = NULL; | ||
1291 | kfree(at_state2->str_var[STR_ZHLC]); | ||
1292 | at_state2->str_var[STR_ZHLC] = NULL; | ||
1293 | at_state2->int_var[VAR_ZCTP] = -1; | ||
1294 | |||
1295 | spin_lock_irqsave(&cs->lock, flags); | ||
1296 | at_state2->timer_expires = RING_TIMEOUT; | ||
1297 | at_state2->timer_active = 1; | ||
1298 | spin_unlock_irqrestore(&cs->lock, flags); | ||
1299 | break; | ||
1300 | case ACT_ICALL: | ||
1301 | handle_icall(cs, bcs, p_at_state); | ||
1302 | at_state = *p_at_state; | ||
1303 | break; | ||
1304 | case ACT_FAILSDOWN: | ||
1305 | warn("Could not shut down the device."); | ||
1306 | /* fall through */ | ||
1307 | case ACT_FAKESDOWN: | ||
1308 | case ACT_SDOWN: | ||
1309 | cs->cur_at_seq = SEQ_NONE; | ||
1310 | finish_shutdown(cs); | ||
1311 | break; | ||
1312 | case ACT_CONNECT: | ||
1313 | if (cs->onechannel) { | ||
1314 | at_state->pending_commands |= PC_DLE1; | ||
1315 | atomic_set(&cs->commands_pending, 1); | ||
1316 | break; | ||
1317 | } | ||
1318 | bcs->chstate |= CHS_D_UP; | ||
1319 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN); | ||
1320 | cs->ops->init_bchannel(bcs); | ||
1321 | break; | ||
1322 | case ACT_DLE1: | ||
1323 | cs->cur_at_seq = SEQ_NONE; | ||
1324 | bcs = cs->bcs + cs->curchannel; | ||
1325 | |||
1326 | bcs->chstate |= CHS_D_UP; | ||
1327 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN); | ||
1328 | cs->ops->init_bchannel(bcs); | ||
1329 | break; | ||
1330 | case ACT_FAKEHUP: | ||
1331 | at_state->int_var[VAR_ZSAU] = ZSAU_NULL; | ||
1332 | /* fall through */ | ||
1333 | case ACT_DISCONNECT: | ||
1334 | cs->cur_at_seq = SEQ_NONE; | ||
1335 | at_state->cid = -1; | ||
1336 | if (bcs && cs->onechannel && cs->dle) { | ||
1337 | /* Check for other open channels not needed: | ||
1338 | * DLE only used for M10x with one B channel. | ||
1339 | */ | ||
1340 | at_state->pending_commands |= PC_DLE0; | ||
1341 | atomic_set(&cs->commands_pending, 1); | ||
1342 | } else { | ||
1343 | disconnect(p_at_state); | ||
1344 | at_state = *p_at_state; | ||
1345 | } | ||
1346 | break; | ||
1347 | case ACT_FAKEDLE0: | ||
1348 | at_state->int_var[VAR_ZDLE] = 0; | ||
1349 | cs->dle = 0; | ||
1350 | /* fall through */ | ||
1351 | case ACT_DLE0: | ||
1352 | cs->cur_at_seq = SEQ_NONE; | ||
1353 | at_state2 = &cs->bcs[cs->curchannel].at_state; | ||
1354 | disconnect(&at_state2); | ||
1355 | break; | ||
1356 | case ACT_ABORTHUP: | ||
1357 | cs->cur_at_seq = SEQ_NONE; | ||
1358 | warn("Could not hang up."); | ||
1359 | at_state->cid = -1; | ||
1360 | if (bcs && cs->onechannel) | ||
1361 | at_state->pending_commands |= PC_DLE0; | ||
1362 | else { | ||
1363 | disconnect(p_at_state); | ||
1364 | at_state = *p_at_state; | ||
1365 | } | ||
1366 | schedule_init(cs, MS_RECOVER); | ||
1367 | break; | ||
1368 | case ACT_FAILDLE0: | ||
1369 | cs->cur_at_seq = SEQ_NONE; | ||
1370 | warn("Could not leave DLE mode."); | ||
1371 | at_state2 = &cs->bcs[cs->curchannel].at_state; | ||
1372 | disconnect(&at_state2); | ||
1373 | schedule_init(cs, MS_RECOVER); | ||
1374 | break; | ||
1375 | case ACT_FAILDLE1: | ||
1376 | cs->cur_at_seq = SEQ_NONE; | ||
1377 | warn("Could not enter DLE mode. Try to hang up."); | ||
1378 | channel = cs->curchannel; | ||
1379 | cs->bcs[channel].at_state.pending_commands |= PC_HUP; | ||
1380 | atomic_set(&cs->commands_pending, 1); | ||
1381 | break; | ||
1382 | |||
1383 | case ACT_CID: /* got cid; start dialing */ | ||
1384 | cs->cur_at_seq = SEQ_NONE; | ||
1385 | channel = cs->curchannel; | ||
1386 | if (ev->parameter > 0 && ev->parameter <= 65535) { | ||
1387 | cs->bcs[channel].at_state.cid = ev->parameter; | ||
1388 | cs->bcs[channel].at_state.pending_commands |= | ||
1389 | PC_DIAL; | ||
1390 | atomic_set(&cs->commands_pending, 1); | ||
1391 | break; | ||
1392 | } | ||
1393 | /* fall through */ | ||
1394 | case ACT_FAILCID: | ||
1395 | cs->cur_at_seq = SEQ_NONE; | ||
1396 | channel = cs->curchannel; | ||
1397 | if (!reinit_and_retry(cs, channel)) { | ||
1398 | warn("Could not get a call id. Dialing not possible"); | ||
1399 | at_state2 = &cs->bcs[channel].at_state; | ||
1400 | disconnect(&at_state2); | ||
1401 | } | ||
1402 | break; | ||
1403 | case ACT_ABORTCID: | ||
1404 | cs->cur_at_seq = SEQ_NONE; | ||
1405 | at_state2 = &cs->bcs[cs->curchannel].at_state; | ||
1406 | disconnect(&at_state2); | ||
1407 | break; | ||
1408 | |||
1409 | case ACT_DIALING: | ||
1410 | case ACT_ACCEPTED: | ||
1411 | cs->cur_at_seq = SEQ_NONE; | ||
1412 | break; | ||
1413 | |||
1414 | case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL processing */ | ||
1415 | disconnect(p_at_state); | ||
1416 | at_state = *p_at_state; | ||
1417 | break; | ||
1418 | |||
1419 | case ACT_ABORTDIAL: /* error/timeout during dial preparation */ | ||
1420 | cs->cur_at_seq = SEQ_NONE; | ||
1421 | at_state->pending_commands |= PC_HUP; | ||
1422 | atomic_set(&cs->commands_pending, 1); | ||
1423 | break; | ||
1424 | |||
1425 | case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */ | ||
1426 | case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */ | ||
1427 | case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */ | ||
1428 | at_state->pending_commands |= PC_HUP; | ||
1429 | atomic_set(&cs->commands_pending, 1); | ||
1430 | break; | ||
1431 | case ACT_GETSTRING: /* warning: RING, ZDLE, ... are not handled properly any more */ | ||
1432 | at_state->getstring = 1; | ||
1433 | break; | ||
1434 | case ACT_SETVER: | ||
1435 | if (!ev->ptr) { | ||
1436 | *p_genresp = 1; | ||
1437 | *p_resp_code = RSP_ERROR; | ||
1438 | break; | ||
1439 | } | ||
1440 | s = ev->ptr; | ||
1441 | |||
1442 | if (!strcmp(s, "OK")) { | ||
1443 | *p_genresp = 1; | ||
1444 | *p_resp_code = RSP_ERROR; | ||
1445 | break; | ||
1446 | } | ||
1447 | |||
1448 | for (i = 0; i < 4; ++i) { | ||
1449 | val = simple_strtoul(s, (char **) &e, 10); | ||
1450 | if (val > INT_MAX || e == s) | ||
1451 | break; | ||
1452 | if (i == 3) { | ||
1453 | if (*e) | ||
1454 | break; | ||
1455 | } else if (*e != '.') | ||
1456 | break; | ||
1457 | else | ||
1458 | s = e + 1; | ||
1459 | cs->fwver[i] = val; | ||
1460 | } | ||
1461 | if (i != 4) { | ||
1462 | *p_genresp = 1; | ||
1463 | *p_resp_code = RSP_ERROR; | ||
1464 | break; | ||
1465 | } | ||
1466 | /*at_state->getstring = 1;*/ | ||
1467 | cs->gotfwver = 0; | ||
1468 | break; | ||
1469 | case ACT_GOTVER: | ||
1470 | if (cs->gotfwver == 0) { | ||
1471 | cs->gotfwver = 1; | ||
1472 | dbg(DEBUG_ANY, | ||
1473 | "firmware version %02d.%03d.%02d.%02d", | ||
1474 | cs->fwver[0], cs->fwver[1], | ||
1475 | cs->fwver[2], cs->fwver[3]); | ||
1476 | break; | ||
1477 | } | ||
1478 | /* fall through */ | ||
1479 | case ACT_FAILVER: | ||
1480 | cs->gotfwver = -1; | ||
1481 | err("could not read firmware version."); | ||
1482 | break; | ||
1483 | #ifdef CONFIG_GIGASET_DEBUG | ||
1484 | case ACT_ERROR: | ||
1485 | *p_genresp = 1; | ||
1486 | *p_resp_code = RSP_ERROR; | ||
1487 | break; | ||
1488 | case ACT_TEST: | ||
1489 | { | ||
1490 | static int count = 3; //2; //1; | ||
1491 | *p_genresp = 1; | ||
1492 | *p_resp_code = count ? RSP_ERROR : RSP_OK; | ||
1493 | if (count > 0) | ||
1494 | --count; | ||
1495 | } | ||
1496 | break; | ||
1497 | #endif | ||
1498 | case ACT_DEBUG: | ||
1499 | dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d", | ||
1500 | __func__, ev->type, at_state->ConState); | ||
1501 | break; | ||
1502 | case ACT_WARN: | ||
1503 | warn("%s: resp_code %d in ConState %d!", | ||
1504 | __func__, ev->type, at_state->ConState); | ||
1505 | break; | ||
1506 | case ACT_ZCAU: | ||
1507 | warn("cause code %04x in connection state %d.", | ||
1508 | ev->parameter, at_state->ConState); | ||
1509 | break; | ||
1510 | |||
1511 | /* events from the LL */ | ||
1512 | case ACT_DIAL: | ||
1513 | start_dial(at_state, ev->ptr, ev->parameter); | ||
1514 | break; | ||
1515 | case ACT_ACCEPT: | ||
1516 | start_accept(at_state); | ||
1517 | break; | ||
1518 | case ACT_PROTO_L2: | ||
1519 | dbg(DEBUG_CMD, | ||
1520 | "set protocol to %u", (unsigned) ev->parameter); | ||
1521 | at_state->bcs->proto2 = ev->parameter; | ||
1522 | break; | ||
1523 | case ACT_HUP: | ||
1524 | at_state->pending_commands |= PC_HUP; | ||
1525 | atomic_set(&cs->commands_pending, 1); //FIXME | ||
1526 | dbg(DEBUG_CMD, "Scheduling PC_HUP"); | ||
1527 | break; | ||
1528 | |||
1529 | /* hotplug events */ | ||
1530 | case ACT_STOP: | ||
1531 | do_stop(cs); | ||
1532 | break; | ||
1533 | case ACT_START: | ||
1534 | do_start(cs); | ||
1535 | break; | ||
1536 | |||
1537 | /* events from the interface */ // FIXME without ACT_xxxx? | ||
1538 | case ACT_IF_LOCK: | ||
1539 | cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs); | ||
1540 | cs->waiting = 0; | ||
1541 | wake_up(&cs->waitqueue); | ||
1542 | break; | ||
1543 | case ACT_IF_VER: | ||
1544 | if (ev->parameter != 0) | ||
1545 | cs->cmd_result = -EINVAL; | ||
1546 | else if (cs->gotfwver != 1) { | ||
1547 | cs->cmd_result = -ENOENT; | ||
1548 | } else { | ||
1549 | memcpy(ev->arg, cs->fwver, sizeof cs->fwver); | ||
1550 | cs->cmd_result = 0; | ||
1551 | } | ||
1552 | cs->waiting = 0; | ||
1553 | wake_up(&cs->waitqueue); | ||
1554 | break; | ||
1555 | |||
1556 | /* events from the proc file system */ // FIXME without ACT_xxxx? | ||
1557 | case ACT_PROC_CIDMODE: | ||
1558 | if (ev->parameter != atomic_read(&cs->cidmode)) { | ||
1559 | atomic_set(&cs->cidmode, ev->parameter); | ||
1560 | if (ev->parameter) { | ||
1561 | cs->at_state.pending_commands |= PC_CIDMODE; | ||
1562 | dbg(DEBUG_CMD, "Scheduling PC_CIDMODE"); | ||
1563 | } else { | ||
1564 | cs->at_state.pending_commands |= PC_UMMODE; | ||
1565 | dbg(DEBUG_CMD, "Scheduling PC_UMMODE"); | ||
1566 | } | ||
1567 | atomic_set(&cs->commands_pending, 1); | ||
1568 | } | ||
1569 | cs->waiting = 0; | ||
1570 | wake_up(&cs->waitqueue); | ||
1571 | break; | ||
1572 | |||
1573 | /* events from the hardware drivers */ | ||
1574 | case ACT_NOTIFY_BC_DOWN: | ||
1575 | bchannel_down(bcs); | ||
1576 | break; | ||
1577 | case ACT_NOTIFY_BC_UP: | ||
1578 | bchannel_up(bcs); | ||
1579 | break; | ||
1580 | case ACT_SHUTDOWN: | ||
1581 | do_shutdown(cs); | ||
1582 | break; | ||
1583 | |||
1584 | |||
1585 | default: | ||
1586 | if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) { | ||
1587 | *pp_command = at_state->bcs->commands[action - ACT_CMD]; | ||
1588 | if (!*pp_command) { | ||
1589 | *p_genresp = 1; | ||
1590 | *p_resp_code = RSP_NULL; | ||
1591 | } | ||
1592 | } else | ||
1593 | err("%s: action==%d!", __func__, action); | ||
1594 | } | ||
1595 | } | ||
1596 | |||
1597 | /* State machine to do the calling and hangup procedure */ | ||
1598 | static void process_event(struct cardstate *cs, struct event_t *ev) | ||
1599 | { | ||
1600 | struct bc_state *bcs; | ||
1601 | char *p_command = NULL; | ||
1602 | struct reply_t *rep; | ||
1603 | int rcode; | ||
1604 | int genresp = 0; | ||
1605 | int resp_code = RSP_ERROR; | ||
1606 | int sendcid; | ||
1607 | struct at_state_t *at_state; | ||
1608 | int index; | ||
1609 | int curact; | ||
1610 | unsigned long flags; | ||
1611 | |||
1612 | IFNULLRET(cs); | ||
1613 | IFNULLRET(ev); | ||
1614 | |||
1615 | if (ev->cid >= 0) { | ||
1616 | at_state = at_state_from_cid(cs, ev->cid); | ||
1617 | if (!at_state) { | ||
1618 | gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID, | ||
1619 | NULL, 0, NULL); | ||
1620 | return; | ||
1621 | } | ||
1622 | } else { | ||
1623 | at_state = ev->at_state; | ||
1624 | if (at_state_invalid(cs, at_state)) { | ||
1625 | dbg(DEBUG_ANY, | ||
1626 | "event for invalid at_state %p", at_state); | ||
1627 | return; | ||
1628 | } | ||
1629 | } | ||
1630 | |||
1631 | dbg(DEBUG_CMD, | ||
1632 | "connection state %d, event %d", at_state->ConState, ev->type); | ||
1633 | |||
1634 | bcs = at_state->bcs; | ||
1635 | sendcid = at_state->cid; | ||
1636 | |||
1637 | /* Setting the pointer to the dial array */ | ||
1638 | rep = at_state->replystruct; | ||
1639 | IFNULLRET(rep); | ||
1640 | |||
1641 | if (ev->type == EV_TIMEOUT) { | ||
1642 | if (ev->parameter != atomic_read(&at_state->timer_index) | ||
1643 | || !at_state->timer_active) { | ||
1644 | ev->type = RSP_NONE; /* old timeout */ | ||
1645 | dbg(DEBUG_ANY, "old timeout"); | ||
1646 | } else if (!at_state->waiting) | ||
1647 | dbg(DEBUG_ANY, "timeout occured"); | ||
1648 | else | ||
1649 | dbg(DEBUG_ANY, "stopped waiting"); | ||
1650 | } | ||
1651 | |||
1652 | /* if the response belongs to a variable in at_state->int_var[VAR_XXXX] or at_state->str_var[STR_XXXX], set it */ | ||
1653 | if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) { | ||
1654 | index = ev->type - RSP_VAR; | ||
1655 | at_state->int_var[index] = ev->parameter; | ||
1656 | } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) { | ||
1657 | index = ev->type - RSP_STR; | ||
1658 | kfree(at_state->str_var[index]); | ||
1659 | at_state->str_var[index] = ev->ptr; | ||
1660 | ev->ptr = NULL; /* prevent process_events() from deallocating ptr */ | ||
1661 | } | ||
1662 | |||
1663 | if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING) | ||
1664 | at_state->getstring = 0; | ||
1665 | |||
1666 | /* Search row in dial array which matches modem response and current constate */ | ||
1667 | for (;; rep++) { | ||
1668 | rcode = rep->resp_code; | ||
1669 | /* dbg (DEBUG_ANY, "rcode %d", rcode); */ | ||
1670 | if (rcode == RSP_LAST) { | ||
1671 | /* found nothing...*/ | ||
1672 | warn("%s: rcode=RSP_LAST: resp_code %d in ConState %d!", | ||
1673 | __func__, ev->type, at_state->ConState); | ||
1674 | return; | ||
1675 | } | ||
1676 | if ((rcode == RSP_ANY || rcode == ev->type) | ||
1677 | && ((int) at_state->ConState >= rep->min_ConState) | ||
1678 | && (rep->max_ConState < 0 | ||
1679 | || (int) at_state->ConState <= rep->max_ConState) | ||
1680 | && (rep->parameter < 0 || rep->parameter == ev->parameter)) | ||
1681 | break; | ||
1682 | } | ||
1683 | |||
1684 | p_command = rep->command; | ||
1685 | |||
1686 | at_state->waiting = 0; | ||
1687 | for (curact = 0; curact < MAXACT; ++curact) { | ||
1688 | /* The row tells us what we should do .. | ||
1689 | */ | ||
1690 | do_action(rep->action[curact], cs, bcs, &at_state, &p_command, &genresp, &resp_code, ev); | ||
1691 | if (!at_state) | ||
1692 | break; /* may be freed after disconnect */ | ||
1693 | } | ||
1694 | |||
1695 | if (at_state) { | ||
1696 | /* Jump to the next con-state regarding the array */ | ||
1697 | if (rep->new_ConState >= 0) | ||
1698 | at_state->ConState = rep->new_ConState; | ||
1699 | |||
1700 | if (genresp) { | ||
1701 | spin_lock_irqsave(&cs->lock, flags); | ||
1702 | at_state->timer_expires = 0; //FIXME | ||
1703 | at_state->timer_active = 0; //FIXME | ||
1704 | spin_unlock_irqrestore(&cs->lock, flags); | ||
1705 | gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL); | ||
1706 | } else { | ||
1707 | /* Send command to modem if not NULL... */ | ||
1708 | if (p_command/*rep->command*/) { | ||
1709 | if (atomic_read(&cs->connected)) | ||
1710 | send_command(cs, p_command, | ||
1711 | sendcid, cs->dle, | ||
1712 | GFP_ATOMIC); | ||
1713 | else | ||
1714 | gigaset_add_event(cs, at_state, | ||
1715 | RSP_NODEV, | ||
1716 | NULL, 0, NULL); | ||
1717 | } | ||
1718 | |||
1719 | spin_lock_irqsave(&cs->lock, flags); | ||
1720 | if (!rep->timeout) { | ||
1721 | at_state->timer_expires = 0; | ||
1722 | at_state->timer_active = 0; | ||
1723 | } else if (rep->timeout > 0) { /* new timeout */ | ||
1724 | at_state->timer_expires = rep->timeout * 10; | ||
1725 | at_state->timer_active = 1; | ||
1726 | new_index(&at_state->timer_index, | ||
1727 | MAX_TIMER_INDEX); | ||
1728 | } | ||
1729 | spin_unlock_irqrestore(&cs->lock, flags); | ||
1730 | } | ||
1731 | } | ||
1732 | } | ||
1733 | |||
1734 | static void schedule_sequence(struct cardstate *cs, | ||
1735 | struct at_state_t *at_state, int sequence) | ||
1736 | { | ||
1737 | cs->cur_at_seq = sequence; | ||
1738 | gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL); | ||
1739 | } | ||
1740 | |||
1741 | static void process_command_flags(struct cardstate *cs) | ||
1742 | { | ||
1743 | struct at_state_t *at_state = NULL; | ||
1744 | struct bc_state *bcs; | ||
1745 | int i; | ||
1746 | int sequence; | ||
1747 | |||
1748 | IFNULLRET(cs); | ||
1749 | |||
1750 | atomic_set(&cs->commands_pending, 0); | ||
1751 | |||
1752 | if (cs->cur_at_seq) { | ||
1753 | dbg(DEBUG_CMD, "not searching scheduled commands: busy"); | ||
1754 | return; | ||
1755 | } | ||
1756 | |||
1757 | dbg(DEBUG_CMD, "searching scheduled commands"); | ||
1758 | |||
1759 | sequence = SEQ_NONE; | ||
1760 | |||
1761 | /* clear pending_commands and hangup channels on shutdown */ | ||
1762 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | ||
1763 | cs->at_state.pending_commands &= ~PC_CIDMODE; | ||
1764 | for (i = 0; i < cs->channels; ++i) { | ||
1765 | bcs = cs->bcs + i; | ||
1766 | at_state = &bcs->at_state; | ||
1767 | at_state->pending_commands &= | ||
1768 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | ||
1769 | if (at_state->cid > 0) | ||
1770 | at_state->pending_commands |= PC_HUP; | ||
1771 | if (at_state->pending_commands & PC_CID) { | ||
1772 | at_state->pending_commands |= PC_NOCID; | ||
1773 | at_state->pending_commands &= ~PC_CID; | ||
1774 | } | ||
1775 | } | ||
1776 | } | ||
1777 | |||
1778 | /* clear pending_commands and hangup channels on reset */ | ||
1779 | if (cs->at_state.pending_commands & PC_INIT) { | ||
1780 | cs->at_state.pending_commands &= ~PC_CIDMODE; | ||
1781 | for (i = 0; i < cs->channels; ++i) { | ||
1782 | bcs = cs->bcs + i; | ||
1783 | at_state = &bcs->at_state; | ||
1784 | at_state->pending_commands &= | ||
1785 | ~(PC_DLE1 | PC_ACCEPT | PC_DIAL); | ||
1786 | if (at_state->cid > 0) | ||
1787 | at_state->pending_commands |= PC_HUP; | ||
1788 | if (atomic_read(&cs->mstate) == MS_RECOVER) { | ||
1789 | if (at_state->pending_commands & PC_CID) { | ||
1790 | at_state->pending_commands |= PC_NOCID; | ||
1791 | at_state->pending_commands &= ~PC_CID; | ||
1792 | } | ||
1793 | } | ||
1794 | } | ||
1795 | } | ||
1796 | |||
1797 | /* only switch back to unimodem mode, if no commands are pending and no channels are up */ | ||
1798 | if (cs->at_state.pending_commands == PC_UMMODE | ||
1799 | && !atomic_read(&cs->cidmode) | ||
1800 | && list_empty(&cs->temp_at_states) | ||
1801 | && atomic_read(&cs->mode) == M_CID) { | ||
1802 | sequence = SEQ_UMMODE; | ||
1803 | at_state = &cs->at_state; | ||
1804 | for (i = 0; i < cs->channels; ++i) { | ||
1805 | bcs = cs->bcs + i; | ||
1806 | if (bcs->at_state.pending_commands || | ||
1807 | bcs->at_state.cid > 0) { | ||
1808 | sequence = SEQ_NONE; | ||
1809 | break; | ||
1810 | } | ||
1811 | } | ||
1812 | } | ||
1813 | cs->at_state.pending_commands &= ~PC_UMMODE; | ||
1814 | if (sequence != SEQ_NONE) { | ||
1815 | schedule_sequence(cs, at_state, sequence); | ||
1816 | return; | ||
1817 | } | ||
1818 | |||
1819 | for (i = 0; i < cs->channels; ++i) { | ||
1820 | bcs = cs->bcs + i; | ||
1821 | if (bcs->at_state.pending_commands & PC_HUP) { | ||
1822 | bcs->at_state.pending_commands &= ~PC_HUP; | ||
1823 | if (bcs->at_state.pending_commands & PC_CID) { | ||
1824 | /* not yet dialing: PC_NOCID is sufficient */ | ||
1825 | bcs->at_state.pending_commands |= PC_NOCID; | ||
1826 | bcs->at_state.pending_commands &= ~PC_CID; | ||
1827 | } else { | ||
1828 | schedule_sequence(cs, &bcs->at_state, SEQ_HUP); | ||
1829 | return; | ||
1830 | } | ||
1831 | } | ||
1832 | if (bcs->at_state.pending_commands & PC_NOCID) { | ||
1833 | bcs->at_state.pending_commands &= ~PC_NOCID; | ||
1834 | cs->curchannel = bcs->channel; | ||
1835 | schedule_sequence(cs, &cs->at_state, SEQ_NOCID); | ||
1836 | return; | ||
1837 | } else if (bcs->at_state.pending_commands & PC_DLE0) { | ||
1838 | bcs->at_state.pending_commands &= ~PC_DLE0; | ||
1839 | cs->curchannel = bcs->channel; | ||
1840 | schedule_sequence(cs, &cs->at_state, SEQ_DLE0); | ||
1841 | return; | ||
1842 | } | ||
1843 | } | ||
1844 | |||
1845 | list_for_each_entry(at_state, &cs->temp_at_states, list) | ||
1846 | if (at_state->pending_commands & PC_HUP) { | ||
1847 | at_state->pending_commands &= ~PC_HUP; | ||
1848 | schedule_sequence(cs, at_state, SEQ_HUP); | ||
1849 | return; | ||
1850 | } | ||
1851 | |||
1852 | if (cs->at_state.pending_commands & PC_INIT) { | ||
1853 | cs->at_state.pending_commands &= ~PC_INIT; | ||
1854 | cs->dle = 0; //FIXME | ||
1855 | cs->inbuf->inputstate = INS_command; | ||
1856 | //FIXME reset card state (or -> LOCK0)? | ||
1857 | schedule_sequence(cs, &cs->at_state, SEQ_INIT); | ||
1858 | return; | ||
1859 | } | ||
1860 | if (cs->at_state.pending_commands & PC_SHUTDOWN) { | ||
1861 | cs->at_state.pending_commands &= ~PC_SHUTDOWN; | ||
1862 | schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN); | ||
1863 | return; | ||
1864 | } | ||
1865 | if (cs->at_state.pending_commands & PC_CIDMODE) { | ||
1866 | cs->at_state.pending_commands &= ~PC_CIDMODE; | ||
1867 | if (atomic_read(&cs->mode) == M_UNIMODEM) { | ||
1868 | #if 0 | ||
1869 | cs->retry_count = 2; | ||
1870 | #else | ||
1871 | cs->retry_count = 1; | ||
1872 | #endif | ||
1873 | schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE); | ||
1874 | return; | ||
1875 | } | ||
1876 | } | ||
1877 | |||
1878 | for (i = 0; i < cs->channels; ++i) { | ||
1879 | bcs = cs->bcs + i; | ||
1880 | if (bcs->at_state.pending_commands & PC_DLE1) { | ||
1881 | bcs->at_state.pending_commands &= ~PC_DLE1; | ||
1882 | cs->curchannel = bcs->channel; | ||
1883 | schedule_sequence(cs, &cs->at_state, SEQ_DLE1); | ||
1884 | return; | ||
1885 | } | ||
1886 | if (bcs->at_state.pending_commands & PC_ACCEPT) { | ||
1887 | bcs->at_state.pending_commands &= ~PC_ACCEPT; | ||
1888 | schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT); | ||
1889 | return; | ||
1890 | } | ||
1891 | if (bcs->at_state.pending_commands & PC_DIAL) { | ||
1892 | bcs->at_state.pending_commands &= ~PC_DIAL; | ||
1893 | schedule_sequence(cs, &bcs->at_state, SEQ_DIAL); | ||
1894 | return; | ||
1895 | } | ||
1896 | if (bcs->at_state.pending_commands & PC_CID) { | ||
1897 | switch (atomic_read(&cs->mode)) { | ||
1898 | case M_UNIMODEM: | ||
1899 | cs->at_state.pending_commands |= PC_CIDMODE; | ||
1900 | dbg(DEBUG_CMD, "Scheduling PC_CIDMODE"); | ||
1901 | atomic_set(&cs->commands_pending, 1); | ||
1902 | return; | ||
1903 | #ifdef GIG_MAYINITONDIAL | ||
1904 | case M_UNKNOWN: | ||
1905 | schedule_init(cs, MS_INIT); | ||
1906 | return; | ||
1907 | #endif | ||
1908 | } | ||
1909 | bcs->at_state.pending_commands &= ~PC_CID; | ||
1910 | cs->curchannel = bcs->channel; | ||
1911 | #ifdef GIG_RETRYCID | ||
1912 | cs->retry_count = 2; | ||
1913 | #else | ||
1914 | cs->retry_count = 1; | ||
1915 | #endif | ||
1916 | schedule_sequence(cs, &cs->at_state, SEQ_CID); | ||
1917 | return; | ||
1918 | } | ||
1919 | } | ||
1920 | } | ||
1921 | |||
1922 | static void process_events(struct cardstate *cs) | ||
1923 | { | ||
1924 | struct event_t *ev; | ||
1925 | unsigned head, tail; | ||
1926 | int i; | ||
1927 | int check_flags = 0; | ||
1928 | int was_busy; | ||
1929 | |||
1930 | /* no locking needed (only one reader) */ | ||
1931 | head = atomic_read(&cs->ev_head); | ||
1932 | |||
1933 | for (i = 0; i < 2 * MAX_EVENTS; ++i) { | ||
1934 | tail = atomic_read(&cs->ev_tail); | ||
1935 | if (tail == head) { | ||
1936 | if (!check_flags && !atomic_read(&cs->commands_pending)) | ||
1937 | break; | ||
1938 | check_flags = 0; | ||
1939 | process_command_flags(cs); | ||
1940 | tail = atomic_read(&cs->ev_tail); | ||
1941 | if (tail == head) { | ||
1942 | if (!atomic_read(&cs->commands_pending)) | ||
1943 | break; | ||
1944 | continue; | ||
1945 | } | ||
1946 | } | ||
1947 | |||
1948 | ev = cs->events + head; | ||
1949 | was_busy = cs->cur_at_seq != SEQ_NONE; | ||
1950 | process_event(cs, ev); | ||
1951 | kfree(ev->ptr); | ||
1952 | ev->ptr = NULL; | ||
1953 | if (was_busy && cs->cur_at_seq == SEQ_NONE) | ||
1954 | check_flags = 1; | ||
1955 | |||
1956 | head = (head + 1) % MAX_EVENTS; | ||
1957 | atomic_set(&cs->ev_head, head); | ||
1958 | } | ||
1959 | |||
1960 | if (i == 2 * MAX_EVENTS) { | ||
1961 | err("infinite loop in process_events; aborting."); | ||
1962 | } | ||
1963 | } | ||
1964 | |||
1965 | /* tasklet scheduled on any event received from the Gigaset device | ||
1966 | * parameter: | ||
1967 | * data ISDN controller state structure | ||
1968 | */ | ||
1969 | void gigaset_handle_event(unsigned long data) | ||
1970 | { | ||
1971 | struct cardstate *cs = (struct cardstate *) data; | ||
1972 | |||
1973 | IFNULLRET(cs); | ||
1974 | IFNULLRET(cs->inbuf); | ||
1975 | |||
1976 | /* handle incoming data on control/common channel */ | ||
1977 | if (atomic_read(&cs->inbuf->head) != atomic_read(&cs->inbuf->tail)) { | ||
1978 | dbg(DEBUG_INTR, "processing new data"); | ||
1979 | cs->ops->handle_input(cs->inbuf); | ||
1980 | } | ||
1981 | |||
1982 | process_events(cs); | ||
1983 | } | ||