Hansjoerg Lipp | 3c66a22 | 2006-03-26 01:38:31 -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: i4l.c,v 1.3.2.9 2006/02/04 18:28:16 hjlipp Exp $ |
| 17 | * ===================================================================== |
| 18 | */ |
| 19 | |
| 20 | #include "gigaset.h" |
| 21 | |
| 22 | /* == Handling of I4L IO ============================================================================*/ |
| 23 | |
| 24 | /* writebuf_from_LL |
| 25 | * called by LL to transmit data on an open channel |
| 26 | * inserts the buffer data into the send queue and starts the transmission |
| 27 | * Note that this operation must not sleep! |
| 28 | * When the buffer is processed completely, gigaset_skb_sent() should be called. |
| 29 | * parameters: |
| 30 | * driverID driver ID as assigned by LL |
| 31 | * channel channel number |
| 32 | * ack if != 0 LL wants to be notified on completion via statcallb(ISDN_STAT_BSENT) |
| 33 | * skb skb containing data to send |
| 34 | * return value: |
| 35 | * number of accepted bytes |
| 36 | * 0 if temporarily unable to accept data (out of buffer space) |
| 37 | * <0 on error (eg. -EINVAL) |
| 38 | */ |
| 39 | static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *skb) |
| 40 | { |
| 41 | struct cardstate *cs; |
| 42 | struct bc_state *bcs; |
| 43 | unsigned len; |
| 44 | unsigned skblen; |
| 45 | |
| 46 | if (!(cs = gigaset_get_cs_by_id(driverID))) { |
| 47 | err("%s: invalid driver ID (%d)", __func__, driverID); |
| 48 | return -ENODEV; |
| 49 | } |
| 50 | if (channel < 0 || channel >= cs->channels) { |
| 51 | err("%s: invalid channel ID (%d)", __func__, channel); |
| 52 | return -ENODEV; |
| 53 | } |
| 54 | bcs = &cs->bcs[channel]; |
| 55 | len = skb->len; |
| 56 | |
| 57 | dbg(DEBUG_LLDATA, |
| 58 | "Receiving data from LL (id: %d, channel: %d, ack: %d, size: %d)", |
| 59 | driverID, channel, ack, len); |
| 60 | |
| 61 | if (!len) { |
| 62 | if (ack) |
| 63 | warn("not ACKing empty packet from LL"); |
| 64 | return 0; |
| 65 | } |
| 66 | if (len > MAX_BUF_SIZE) { |
| 67 | err("%s: packet too large (%d bytes)", __func__, channel); |
| 68 | return -EINVAL; |
| 69 | } |
| 70 | |
| 71 | if (!atomic_read(&cs->connected)) |
| 72 | return -ENODEV; |
| 73 | |
| 74 | skblen = ack ? len : 0; |
| 75 | skb->head[0] = skblen & 0xff; |
| 76 | skb->head[1] = skblen >> 8; |
| 77 | dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x", len, skblen, |
| 78 | (unsigned) skb->head[0], (unsigned) skb->head[1]); |
| 79 | |
| 80 | /* pass to device-specific module */ |
| 81 | return cs->ops->send_skb(bcs, skb); |
| 82 | } |
| 83 | |
| 84 | void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb) |
| 85 | { |
| 86 | unsigned len; |
| 87 | isdn_ctrl response; |
| 88 | |
| 89 | ++bcs->trans_up; |
| 90 | |
| 91 | if (skb->len) |
| 92 | warn("%s: skb->len==%d", __func__, skb->len); |
| 93 | |
| 94 | len = (unsigned char) skb->head[0] | |
| 95 | (unsigned) (unsigned char) skb->head[1] << 8; |
| 96 | if (len) { |
| 97 | dbg(DEBUG_MCMD, |
| 98 | "Acknowledge sending to LL (id: %d, channel: %d size: %u)", |
| 99 | bcs->cs->myid, bcs->channel, len); |
| 100 | |
| 101 | response.driver = bcs->cs->myid; |
| 102 | response.command = ISDN_STAT_BSENT; |
| 103 | response.arg = bcs->channel; |
| 104 | response.parm.length = len; |
| 105 | bcs->cs->iif.statcallb(&response); |
| 106 | } |
| 107 | } |
| 108 | EXPORT_SYMBOL_GPL(gigaset_skb_sent); |
| 109 | |
| 110 | /* This function will be called by LL to send commands |
| 111 | * NOTE: LL ignores the returned value, for commands other than ISDN_CMD_IOCTL, |
| 112 | * so don't put too much effort into it. |
| 113 | */ |
| 114 | static int command_from_LL(isdn_ctrl *cntrl) |
| 115 | { |
| 116 | struct cardstate *cs = gigaset_get_cs_by_id(cntrl->driver); |
| 117 | //isdn_ctrl response; |
| 118 | //unsigned long flags; |
| 119 | struct bc_state *bcs; |
| 120 | int retval = 0; |
| 121 | struct setup_parm *sp; |
| 122 | |
| 123 | //dbg(DEBUG_ANY, "Gigaset_HW: Receiving command"); |
| 124 | gigaset_debugdrivers(); |
| 125 | |
| 126 | /* Terminate this call if no device is present. Bt if the command is "ISDN_CMD_LOCK" or |
| 127 | * "ISDN_CMD_UNLOCK" then execute it due to the fact that they are device independent ! |
| 128 | */ |
| 129 | //FIXME "remove test for &connected" |
| 130 | if ((!cs || !atomic_read(&cs->connected))) { |
| 131 | warn("LL tried to access unknown device with nr. %d", |
| 132 | cntrl->driver); |
| 133 | return -ENODEV; |
| 134 | } |
| 135 | |
| 136 | switch (cntrl->command) { |
| 137 | case ISDN_CMD_IOCTL: |
| 138 | |
| 139 | dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver:%d,arg: %ld)", |
| 140 | cntrl->driver, cntrl->arg); |
| 141 | |
| 142 | warn("ISDN_CMD_IOCTL is not supported."); |
| 143 | return -EINVAL; |
| 144 | |
| 145 | case ISDN_CMD_DIAL: |
| 146 | dbg(DEBUG_ANY, "ISDN_CMD_DIAL (driver: %d, channel: %ld, " |
| 147 | "phone: %s,ownmsn: %s, si1: %d, si2: %d)", |
| 148 | cntrl->driver, cntrl->arg, |
| 149 | cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn, |
| 150 | cntrl->parm.setup.si1, cntrl->parm.setup.si2); |
| 151 | |
| 152 | if (cntrl->arg >= cs->channels) { |
| 153 | err("invalid channel (%d)", (int) cntrl->arg); |
| 154 | return -EINVAL; |
| 155 | } |
| 156 | |
| 157 | bcs = cs->bcs + cntrl->arg; |
| 158 | |
| 159 | if (!gigaset_get_channel(bcs)) { |
| 160 | err("channel not free"); |
| 161 | return -EBUSY; |
| 162 | } |
| 163 | |
| 164 | sp = kmalloc(sizeof *sp, GFP_ATOMIC); |
| 165 | if (!sp) { |
| 166 | gigaset_free_channel(bcs); |
| 167 | err("ISDN_CMD_DIAL: out of memory"); |
| 168 | return -ENOMEM; |
| 169 | } |
| 170 | *sp = cntrl->parm.setup; |
| 171 | |
| 172 | if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp, |
| 173 | atomic_read(&bcs->at_state.seq_index), |
| 174 | NULL)) { |
| 175 | //FIXME what should we do? |
| 176 | kfree(sp); |
| 177 | gigaset_free_channel(bcs); |
| 178 | return -ENOMEM; |
| 179 | } |
| 180 | |
| 181 | dbg(DEBUG_CMD, "scheduling DIAL"); |
| 182 | gigaset_schedule_event(cs); |
| 183 | break; |
| 184 | case ISDN_CMD_ACCEPTD: //FIXME |
| 185 | dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD"); |
| 186 | |
| 187 | if (cntrl->arg >= cs->channels) { |
| 188 | err("invalid channel (%d)", (int) cntrl->arg); |
| 189 | return -EINVAL; |
| 190 | } |
| 191 | |
| 192 | if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state, |
| 193 | EV_ACCEPT, NULL, 0, NULL)) { |
| 194 | //FIXME what should we do? |
| 195 | return -ENOMEM; |
| 196 | } |
| 197 | |
| 198 | dbg(DEBUG_CMD, "scheduling ACCEPT"); |
| 199 | gigaset_schedule_event(cs); |
| 200 | |
| 201 | break; |
| 202 | case ISDN_CMD_ACCEPTB: |
| 203 | dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB"); |
| 204 | break; |
| 205 | case ISDN_CMD_HANGUP: |
| 206 | dbg(DEBUG_ANY, |
| 207 | "ISDN_CMD_HANGUP (channel: %d)", (int) cntrl->arg); |
| 208 | |
| 209 | if (cntrl->arg >= cs->channels) { |
| 210 | err("ISDN_CMD_HANGUP: invalid channel (%u)", |
| 211 | (unsigned) cntrl->arg); |
| 212 | return -EINVAL; |
| 213 | } |
| 214 | |
| 215 | if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state, |
| 216 | EV_HUP, NULL, 0, NULL)) { |
| 217 | //FIXME what should we do? |
| 218 | return -ENOMEM; |
| 219 | } |
| 220 | |
| 221 | dbg(DEBUG_CMD, "scheduling HUP"); |
| 222 | gigaset_schedule_event(cs); |
| 223 | |
| 224 | break; |
| 225 | case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME |
| 226 | dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ"); |
| 227 | break; |
| 228 | case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME |
| 229 | dbg(DEBUG_ANY, |
| 230 | "ISDN_CMD_SETEAZ (id:%d, channel: %ld, number: %s)", |
| 231 | cntrl->driver, cntrl->arg, cntrl->parm.num); |
| 232 | break; |
| 233 | case ISDN_CMD_SETL2: /* Set L2 to given protocol */ |
| 234 | dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (Channel: %ld, Proto: %lx)", |
| 235 | cntrl->arg & 0xff, (cntrl->arg >> 8)); |
| 236 | |
| 237 | if ((cntrl->arg & 0xff) >= cs->channels) { |
| 238 | err("invalid channel (%u)", |
| 239 | (unsigned) cntrl->arg & 0xff); |
| 240 | return -EINVAL; |
| 241 | } |
| 242 | |
| 243 | if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg & 0xff].at_state, |
| 244 | EV_PROTO_L2, NULL, cntrl->arg >> 8, |
| 245 | NULL)) { |
| 246 | //FIXME what should we do? |
| 247 | return -ENOMEM; |
| 248 | } |
| 249 | |
| 250 | dbg(DEBUG_CMD, "scheduling PROTO_L2"); |
| 251 | gigaset_schedule_event(cs); |
| 252 | break; |
| 253 | case ISDN_CMD_SETL3: /* Set L3 to given protocol */ |
| 254 | dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (Channel: %ld, Proto: %lx)", |
| 255 | cntrl->arg & 0xff, (cntrl->arg >> 8)); |
| 256 | |
| 257 | if ((cntrl->arg & 0xff) >= cs->channels) { |
| 258 | err("invalid channel (%u)", |
| 259 | (unsigned) cntrl->arg & 0xff); |
| 260 | return -EINVAL; |
| 261 | } |
| 262 | |
| 263 | if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) { |
| 264 | err("invalid protocol %lu", cntrl->arg >> 8); |
| 265 | return -EINVAL; |
| 266 | } |
| 267 | |
| 268 | break; |
| 269 | case ISDN_CMD_PROCEED: |
| 270 | dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME |
| 271 | break; |
| 272 | case ISDN_CMD_ALERT: |
| 273 | dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME |
| 274 | if (cntrl->arg >= cs->channels) { |
| 275 | err("invalid channel (%d)", (int) cntrl->arg); |
| 276 | return -EINVAL; |
| 277 | } |
| 278 | //bcs = cs->bcs + cntrl->arg; |
| 279 | //bcs->proto2 = -1; |
| 280 | // FIXME |
| 281 | break; |
| 282 | case ISDN_CMD_REDIR: |
| 283 | dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME |
| 284 | break; |
| 285 | case ISDN_CMD_PROT_IO: |
| 286 | dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO"); |
| 287 | break; |
| 288 | case ISDN_CMD_FAXCMD: |
| 289 | dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD"); |
| 290 | break; |
| 291 | case ISDN_CMD_GETL2: |
| 292 | dbg(DEBUG_ANY, "ISDN_CMD_GETL2"); |
| 293 | break; |
| 294 | case ISDN_CMD_GETL3: |
| 295 | dbg(DEBUG_ANY, "ISDN_CMD_GETL3"); |
| 296 | break; |
| 297 | case ISDN_CMD_GETEAZ: |
| 298 | dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ"); |
| 299 | break; |
| 300 | case ISDN_CMD_SETSIL: |
| 301 | dbg(DEBUG_ANY, "ISDN_CMD_SETSIL"); |
| 302 | break; |
| 303 | case ISDN_CMD_GETSIL: |
| 304 | dbg(DEBUG_ANY, "ISDN_CMD_GETSIL"); |
| 305 | break; |
| 306 | default: |
| 307 | err("unknown command %d from LL", |
| 308 | cntrl->command); |
| 309 | return -EINVAL; |
| 310 | } |
| 311 | |
| 312 | return retval; |
| 313 | } |
| 314 | |
| 315 | void gigaset_i4l_cmd(struct cardstate *cs, int cmd) |
| 316 | { |
| 317 | isdn_ctrl command; |
| 318 | |
| 319 | command.driver = cs->myid; |
| 320 | command.command = cmd; |
| 321 | command.arg = 0; |
| 322 | cs->iif.statcallb(&command); |
| 323 | } |
| 324 | |
| 325 | void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd) |
| 326 | { |
| 327 | isdn_ctrl command; |
| 328 | |
| 329 | command.driver = bcs->cs->myid; |
| 330 | command.command = cmd; |
| 331 | command.arg = bcs->channel; |
| 332 | bcs->cs->iif.statcallb(&command); |
| 333 | } |
| 334 | |
| 335 | int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data) |
| 336 | { |
| 337 | struct bc_state *bcs = at_state->bcs; |
| 338 | unsigned proto; |
| 339 | const char *bc; |
| 340 | size_t length[AT_NUM]; |
| 341 | size_t l; |
| 342 | int i; |
| 343 | struct setup_parm *sp = data; |
| 344 | |
| 345 | switch (bcs->proto2) { |
| 346 | case ISDN_PROTO_L2_HDLC: |
| 347 | proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */ |
| 348 | break; |
| 349 | case ISDN_PROTO_L2_TRANS: |
| 350 | proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */ |
| 351 | break; |
| 352 | default: |
| 353 | err("invalid protocol: %u", bcs->proto2); |
| 354 | return -EINVAL; |
| 355 | } |
| 356 | |
| 357 | switch (sp->si1) { |
| 358 | case 1: /* audio */ |
| 359 | bc = "9090A3"; /* 3.1 kHz audio, A-law */ |
| 360 | break; |
| 361 | case 7: /* data */ |
| 362 | default: /* hope the app knows what it is doing */ |
| 363 | bc = "8890"; /* unrestricted digital information */ |
| 364 | } |
| 365 | //FIXME add missing si1 values from 1TR6, inspect si2, set HLC/LLC |
| 366 | |
| 367 | length[AT_DIAL ] = 1 + strlen(sp->phone) + 1 + 1; |
| 368 | l = strlen(sp->eazmsn); |
| 369 | length[AT_MSN ] = l ? 6 + l + 1 + 1 : 0; |
| 370 | length[AT_BC ] = 5 + strlen(bc) + 1 + 1; |
| 371 | length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */ |
| 372 | length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */ |
| 373 | length[AT_TYPE ] = 6 + 1 + 1 + 1; /* call type: 1 character */ |
| 374 | length[AT_HLC ] = 0; |
| 375 | |
| 376 | for (i = 0; i < AT_NUM; ++i) { |
| 377 | kfree(bcs->commands[i]); |
| 378 | bcs->commands[i] = NULL; |
| 379 | if (length[i] && |
| 380 | !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) { |
| 381 | err("out of memory"); |
| 382 | return -ENOMEM; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | /* type = 1: extern, 0: intern, 2: recall, 3: door, 4: centrex */ |
| 387 | if (sp->phone[0] == '*' && sp->phone[1] == '*') { |
| 388 | /* internal call: translate ** prefix to CTP value */ |
| 389 | snprintf(bcs->commands[AT_DIAL], length[AT_DIAL], |
| 390 | "D%s\r", sp->phone+2); |
| 391 | strncpy(bcs->commands[AT_TYPE], "^SCTP=0\r", length[AT_TYPE]); |
| 392 | } else { |
| 393 | snprintf(bcs->commands[AT_DIAL], length[AT_DIAL], |
| 394 | "D%s\r", sp->phone); |
| 395 | strncpy(bcs->commands[AT_TYPE], "^SCTP=1\r", length[AT_TYPE]); |
| 396 | } |
| 397 | |
| 398 | if (bcs->commands[AT_MSN]) |
| 399 | snprintf(bcs->commands[AT_MSN], length[AT_MSN], "^SMSN=%s\r", sp->eazmsn); |
| 400 | snprintf(bcs->commands[AT_BC ], length[AT_BC ], "^SBC=%s\r", bc); |
| 401 | snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto); |
| 402 | snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned)bcs->channel + 1); |
| 403 | |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | int gigaset_isdn_setup_accept(struct at_state_t *at_state) |
| 408 | { |
| 409 | unsigned proto; |
| 410 | size_t length[AT_NUM]; |
| 411 | int i; |
| 412 | struct bc_state *bcs = at_state->bcs; |
| 413 | |
| 414 | switch (bcs->proto2) { |
| 415 | case ISDN_PROTO_L2_HDLC: |
| 416 | proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */ |
| 417 | break; |
| 418 | case ISDN_PROTO_L2_TRANS: |
| 419 | proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */ |
| 420 | break; |
| 421 | default: |
| 422 | err("invalid protocol: %u", bcs->proto2); |
| 423 | return -EINVAL; |
| 424 | } |
| 425 | |
| 426 | length[AT_DIAL ] = 0; |
| 427 | length[AT_MSN ] = 0; |
| 428 | length[AT_BC ] = 0; |
| 429 | length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */ |
| 430 | length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */ |
| 431 | length[AT_TYPE ] = 0; |
| 432 | length[AT_HLC ] = 0; |
| 433 | |
| 434 | for (i = 0; i < AT_NUM; ++i) { |
| 435 | kfree(bcs->commands[i]); |
| 436 | bcs->commands[i] = NULL; |
| 437 | if (length[i] && |
| 438 | !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) { |
| 439 | err("out of memory"); |
| 440 | return -ENOMEM; |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto); |
| 445 | snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned) bcs->channel + 1); |
| 446 | |
| 447 | return 0; |
| 448 | } |
| 449 | |
| 450 | int gigaset_isdn_icall(struct at_state_t *at_state) |
| 451 | { |
| 452 | struct cardstate *cs = at_state->cs; |
| 453 | struct bc_state *bcs = at_state->bcs; |
| 454 | isdn_ctrl response; |
| 455 | int retval; |
| 456 | |
| 457 | /* fill ICALL structure */ |
| 458 | response.parm.setup.si1 = 0; /* default: unknown */ |
| 459 | response.parm.setup.si2 = 0; |
| 460 | response.parm.setup.screen = 0; //FIXME how to set these? |
| 461 | response.parm.setup.plan = 0; |
| 462 | if (!at_state->str_var[STR_ZBC]) { |
| 463 | /* no BC (internal call): assume speech, A-law */ |
| 464 | response.parm.setup.si1 = 1; |
| 465 | } else if (!strcmp(at_state->str_var[STR_ZBC], "8890")) { |
| 466 | /* unrestricted digital information */ |
| 467 | response.parm.setup.si1 = 7; |
| 468 | } else if (!strcmp(at_state->str_var[STR_ZBC], "8090A3")) { |
| 469 | /* speech, A-law */ |
| 470 | response.parm.setup.si1 = 1; |
| 471 | } else if (!strcmp(at_state->str_var[STR_ZBC], "9090A3")) { |
| 472 | /* 3,1 kHz audio, A-law */ |
| 473 | response.parm.setup.si1 = 1; |
| 474 | response.parm.setup.si2 = 2; |
| 475 | } else { |
| 476 | warn("RING ignored - unsupported BC %s", |
| 477 | at_state->str_var[STR_ZBC]); |
| 478 | return ICALL_IGNORE; |
| 479 | } |
| 480 | if (at_state->str_var[STR_NMBR]) { |
| 481 | strncpy(response.parm.setup.phone, at_state->str_var[STR_NMBR], |
| 482 | sizeof response.parm.setup.phone - 1); |
| 483 | response.parm.setup.phone[sizeof response.parm.setup.phone - 1] = 0; |
| 484 | } else |
| 485 | response.parm.setup.phone[0] = 0; |
| 486 | if (at_state->str_var[STR_ZCPN]) { |
| 487 | strncpy(response.parm.setup.eazmsn, at_state->str_var[STR_ZCPN], |
| 488 | sizeof response.parm.setup.eazmsn - 1); |
| 489 | response.parm.setup.eazmsn[sizeof response.parm.setup.eazmsn - 1] = 0; |
| 490 | } else |
| 491 | response.parm.setup.eazmsn[0] = 0; |
| 492 | |
| 493 | if (!bcs) { |
| 494 | notice("no channel for incoming call"); |
| 495 | dbg(DEBUG_CMD, "Sending ICALLW"); |
| 496 | response.command = ISDN_STAT_ICALLW; |
| 497 | response.arg = 0; //FIXME |
| 498 | } else { |
| 499 | dbg(DEBUG_CMD, "Sending ICALL"); |
| 500 | response.command = ISDN_STAT_ICALL; |
| 501 | response.arg = bcs->channel; //FIXME |
| 502 | } |
| 503 | response.driver = cs->myid; |
| 504 | retval = cs->iif.statcallb(&response); |
| 505 | dbg(DEBUG_CMD, "Response: %d", retval); |
| 506 | switch (retval) { |
| 507 | case 0: /* no takers */ |
| 508 | return ICALL_IGNORE; |
| 509 | case 1: /* alerting */ |
| 510 | bcs->chstate |= CHS_NOTIFY_LL; |
| 511 | return ICALL_ACCEPT; |
| 512 | case 2: /* reject */ |
| 513 | return ICALL_REJECT; |
| 514 | case 3: /* incomplete */ |
| 515 | warn("LL requested unsupported feature: Incomplete Number"); |
| 516 | return ICALL_IGNORE; |
| 517 | case 4: /* proceeding */ |
| 518 | /* Gigaset will send ALERTING anyway. |
| 519 | * There doesn't seem to be a way to avoid this. |
| 520 | */ |
| 521 | return ICALL_ACCEPT; |
| 522 | case 5: /* deflect */ |
| 523 | warn("LL requested unsupported feature: Call Deflection"); |
| 524 | return ICALL_IGNORE; |
| 525 | default: |
| 526 | err("LL error %d on ICALL", retval); |
| 527 | return ICALL_IGNORE; |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | /* Set Callback function pointer */ |
| 532 | int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid) |
| 533 | { |
| 534 | isdn_if *iif = &cs->iif; |
| 535 | |
| 536 | dbg(DEBUG_ANY, "Register driver capabilities to LL"); |
| 537 | |
| 538 | //iif->id[sizeof(iif->id) - 1]=0; |
| 539 | //strncpy(iif->id, isdnid, sizeof(iif->id) - 1); |
| 540 | if (snprintf(iif->id, sizeof iif->id, "%s_%u", isdnid, cs->minor_index) |
| 541 | >= sizeof iif->id) |
| 542 | return -ENOMEM; //FIXME EINVAL/...?? |
| 543 | |
| 544 | iif->owner = THIS_MODULE; |
| 545 | iif->channels = cs->channels; /* I am supporting just one channel *//* I was supporting...*/ |
| 546 | iif->maxbufsize = MAX_BUF_SIZE; |
| 547 | iif->features = ISDN_FEATURE_L2_TRANS | /* Our device is very advanced, therefore */ |
| 548 | ISDN_FEATURE_L2_HDLC | |
| 549 | #ifdef GIG_X75 |
| 550 | ISDN_FEATURE_L2_X75I | |
| 551 | #endif |
| 552 | ISDN_FEATURE_L3_TRANS | |
| 553 | ISDN_FEATURE_P_EURO; |
| 554 | iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */ |
| 555 | iif->command = command_from_LL; |
| 556 | iif->writebuf_skb = writebuf_from_LL; |
| 557 | iif->writecmd = NULL; /* Don't support isdnctrl */ |
| 558 | iif->readstat = NULL; /* Don't support isdnctrl */ |
| 559 | iif->rcvcallb_skb = NULL; /* Will be set by LL */ |
| 560 | iif->statcallb = NULL; /* Will be set by LL */ |
| 561 | |
| 562 | if (!register_isdn(iif)) |
| 563 | return 0; |
| 564 | |
| 565 | cs->myid = iif->channels; /* Set my device id */ |
| 566 | return 1; |
| 567 | } |