Hansjoerg Lipp | 14fa73a | 2006-03-26 01:38:30 -0800 | [diff] [blame] | 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 | } |