hci_event.c revision 1.1.2.2
1 /* $NetBSD: hci_event.c,v 1.1.2.2 2006/06/21 15:10:51 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 Iain Hibbert. 5 * Copyright (c) 2006 Itronix Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of Itronix Inc. may not be used to endorse 17 * or promote products derived from this software without specific 18 * prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 24 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 27 * ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: hci_event.c,v 1.1.2.2 2006/06/21 15:10:51 yamt Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/kernel.h> 38 #include <sys/malloc.h> 39 #include <sys/mbuf.h> 40 #include <sys/proc.h> 41 #include <sys/systm.h> 42 43 #include <netbt/bluetooth.h> 44 #include <netbt/hci.h> 45 #include <netbt/sco.h> 46 47 static void hci_event_inquiry_result(struct hci_unit *, struct mbuf *); 48 static void hci_event_command_status(struct hci_unit *, struct mbuf *); 49 static void hci_event_command_compl(struct hci_unit *, struct mbuf *); 50 static void hci_event_con_compl(struct hci_unit *, struct mbuf *); 51 static void hci_event_discon_compl(struct hci_unit *, struct mbuf *); 52 static void hci_event_con_req(struct hci_unit *, struct mbuf *); 53 static void hci_event_num_compl_pkts(struct hci_unit *, struct mbuf *); 54 static void hci_cmd_read_bdaddr(struct hci_unit *, struct mbuf *); 55 static void hci_cmd_read_buffer_size(struct hci_unit *, struct mbuf *); 56 static void hci_cmd_read_local_features(struct hci_unit *, struct mbuf *); 57 static void hci_cmd_reset(struct hci_unit *, struct mbuf *); 58 59 #ifdef BLUETOOTH_DEBUG 60 int bluetooth_debug = BLUETOOTH_DEBUG; 61 62 static const char *hci_eventnames[] = { 63 /* 0x00 */ "NULL", 64 /* 0x01 */ "INQUIRY COMPLETE", 65 /* 0x02 */ "INQUIRY RESULT", 66 /* 0x03 */ "CONN COMPLETE", 67 /* 0x04 */ "CONN REQ", 68 /* 0x05 */ "DISCONN COMPLETE", 69 /* 0x06 */ "AUTH COMPLETE", 70 /* 0x07 */ "REMOTE NAME REQ COMPLETE", 71 /* 0x08 */ "ENCRYPTION CHANGE", 72 /* 0x09 */ "CHANGE CONN LINK KEY COMPLETE", 73 /* 0x0a */ "MASTER LINK KEY COMPLETE", 74 /* 0x0b */ "READ REMOTE FEATURES COMPLETE", 75 /* 0x0c */ "READ REMOTE VERSION INFO COMPLETE", 76 /* 0x0d */ "QoS SETUP COMPLETE", 77 /* 0x0e */ "COMMAND COMPLETE", 78 /* 0x0f */ "COMMAND STATUS", 79 /* 0x10 */ "HARDWARE ERROR", 80 /* 0x11 */ "FLUSH OCCUR", 81 /* 0x12 */ "ROLE CHANGE", 82 /* 0x13 */ "NUM COMPLETED PACKETS", 83 /* 0x14 */ "MODE CHANGE", 84 /* 0x15 */ "RETURN LINK KEYS", 85 /* 0x16 */ "PIN CODE REQ", 86 /* 0x17 */ "LINK KEY REQ", 87 /* 0x18 */ "LINK KEY NOTIFICATION", 88 /* 0x19 */ "LOOPBACK COMMAND", 89 /* 0x1a */ "DATA BUFFER OVERFLOW", 90 /* 0x1b */ "MAX SLOT CHANGE", 91 /* 0x1c */ "READ CLOCK OFFSET COMPLETE", 92 /* 0x1d */ "CONN PKT TYPE CHANGED", 93 /* 0x1e */ "QOS VIOLATION", 94 /* 0x1f */ "PAGE SCAN MODE CHANGE", 95 /* 0x20 */ "PAGE SCAN REP MODE CHANGE", 96 /* 0x21 */ "FLOW SPECIFICATION COMPLETE", 97 /* 0x22 */ "RSSI RESULT", 98 /* 0x23 */ "READ REMOTE EXT FEATURES" 99 }; 100 101 static const char * 102 hci_eventstr(unsigned int event) 103 { 104 105 if (event < (sizeof(hci_eventnames) / sizeof(*hci_eventnames))) 106 return hci_eventnames[event]; 107 108 switch (event) { 109 case HCI_EVENT_SCO_CON_COMPL: /* 0x2c */ 110 return "SCO CON COMPLETE"; 111 112 case HCI_EVENT_SCO_CON_CHANGED: /* 0x2d */ 113 return "SCO CON CHANGED"; 114 115 case HCI_EVENT_BT_LOGO: /* 0xfe */ 116 return "BT_LOGO"; 117 118 case HCI_EVENT_VENDOR: /* 0xff */ 119 return "VENDOR"; 120 } 121 122 return "UNRECOGNISED"; 123 } 124 #endif /* BLUETOOTH_DEBUG */ 125 126 /* 127 * process HCI Events 128 * 129 * We will free the mbuf at the end, no need for any sub 130 * functions to handle that. We kind of assume that the 131 * device sends us valid events. 132 */ 133 void 134 hci_event(struct mbuf *m, struct hci_unit *unit) 135 { 136 hci_event_hdr_t hdr; 137 138 KASSERT(m->m_flags & M_PKTHDR); 139 140 KASSERT(m->m_pkthdr.len >= sizeof(hdr)); 141 m_copydata(m, 0, sizeof(hdr), &hdr); 142 m_adj(m, sizeof(hdr)); 143 144 KASSERT(hdr.type == HCI_EVENT_PKT); 145 146 DPRINTFN(1, "(%s) event %s\n", unit->hci_devname, hci_eventstr(hdr.event)); 147 148 switch(hdr.event) { 149 case HCI_EVENT_COMMAND_STATUS: 150 hci_event_command_status(unit, m); 151 break; 152 153 case HCI_EVENT_COMMAND_COMPL: 154 hci_event_command_compl(unit, m); 155 break; 156 157 case HCI_EVENT_NUM_COMPL_PKTS: 158 hci_event_num_compl_pkts(unit, m); 159 break; 160 161 case HCI_EVENT_INQUIRY_RESULT: 162 hci_event_inquiry_result(unit, m); 163 break; 164 165 case HCI_EVENT_CON_COMPL: 166 hci_event_con_compl(unit, m); 167 break; 168 169 case HCI_EVENT_DISCON_COMPL: 170 hci_event_discon_compl(unit, m); 171 break; 172 173 case HCI_EVENT_CON_REQ: 174 hci_event_con_req(unit, m); 175 break; 176 177 case HCI_EVENT_SCO_CON_COMPL: 178 case HCI_EVENT_INQUIRY_COMPL: 179 case HCI_EVENT_AUTH_COMPL: 180 case HCI_EVENT_REMOTE_NAME_REQ_COMPL: 181 case HCI_EVENT_ENCRYPTION_CHANGE: 182 case HCI_EVENT_CHANGE_CON_LINK_KEY_COMPL: 183 case HCI_EVENT_MASTER_LINK_KEY_COMPL: 184 case HCI_EVENT_READ_REMOTE_FEATURES_COMPL: 185 case HCI_EVENT_READ_REMOTE_VER_INFO_COMPL: 186 case HCI_EVENT_QOS_SETUP_COMPL: 187 case HCI_EVENT_HARDWARE_ERROR: 188 case HCI_EVENT_FLUSH_OCCUR: 189 case HCI_EVENT_ROLE_CHANGE: 190 case HCI_EVENT_MODE_CHANGE: 191 case HCI_EVENT_RETURN_LINK_KEYS: 192 case HCI_EVENT_PIN_CODE_REQ: 193 case HCI_EVENT_LINK_KEY_REQ: 194 case HCI_EVENT_LINK_KEY_NOTIFICATION: 195 case HCI_EVENT_LOOPBACK_COMMAND: 196 case HCI_EVENT_DATA_BUFFER_OVERFLOW: 197 case HCI_EVENT_MAX_SLOT_CHANGE: 198 case HCI_EVENT_READ_CLOCK_OFFSET_COMPL: 199 case HCI_EVENT_CON_PKT_TYPE_CHANGED: 200 case HCI_EVENT_QOS_VIOLATION: 201 case HCI_EVENT_PAGE_SCAN_MODE_CHANGE: 202 case HCI_EVENT_PAGE_SCAN_REP_MODE_CHANGE: 203 case HCI_EVENT_FLOW_SPECIFICATION_COMPL: 204 case HCI_EVENT_RSSI_RESULT: 205 case HCI_EVENT_READ_REMOTE_EXTENDED_FEATURES: 206 case HCI_EVENT_SCO_CON_CHANGED: 207 case HCI_EVENT_BT_LOGO: 208 case HCI_EVENT_VENDOR: 209 break; 210 211 default: 212 UNKNOWN(hdr.event); 213 break; 214 } 215 216 m_freem(m); 217 } 218 219 /* 220 * Command Status 221 * 222 * Update our record of num_cmd_pkts then post-process any pending commands 223 * and optionally restart cmd output on the unit. 224 */ 225 static void 226 hci_event_command_status(struct hci_unit *unit, struct mbuf *m) 227 { 228 hci_command_status_ep ep; 229 230 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 231 m_copydata(m, 0, sizeof(ep), &ep); 232 m_adj(m, sizeof(ep)); 233 234 DPRINTFN(1, "(%s) opcode (%03x|%04x) num_cmd_pkts = %d\n", 235 unit->hci_devname, 236 HCI_OGF(le16toh(ep.opcode)), HCI_OCF(le16toh(ep.opcode)), 237 ep.num_cmd_pkts); 238 239 unit->hci_num_cmd_pkts = ep.num_cmd_pkts; 240 241 /* 242 * post processing of pending commands 243 */ 244 switch(le16toh(ep.opcode)) { 245 default: 246 break; 247 } 248 249 while (unit->hci_num_cmd_pkts > 0 && MBUFQ_FIRST(&unit->hci_cmdwait)) { 250 MBUFQ_DEQUEUE(&unit->hci_cmdwait, m); 251 hci_output_cmd(unit, m); 252 } 253 } 254 255 /* 256 * Command Complete 257 * 258 * Update our record of num_cmd_pkts then handle the completed command, 259 * and optionally restart cmd output on the unit. 260 */ 261 static void 262 hci_event_command_compl(struct hci_unit *unit, struct mbuf *m) 263 { 264 hci_command_compl_ep ep; 265 266 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 267 m_copydata(m, 0, sizeof(ep), &ep); 268 m_adj(m, sizeof(ep)); 269 270 DPRINTFN(1, "(%s) opcode (%03x|%04x) num_cmd_pkts = %d\n", 271 unit->hci_devname, 272 HCI_OGF(le16toh(ep.opcode)), HCI_OCF(le16toh(ep.opcode)), 273 ep.num_cmd_pkts); 274 275 unit->hci_num_cmd_pkts = ep.num_cmd_pkts; 276 277 /* 278 * post processing of completed commands 279 */ 280 switch(le16toh(ep.opcode)) { 281 case HCI_CMD_READ_BDADDR: 282 hci_cmd_read_bdaddr(unit, m); 283 break; 284 285 case HCI_CMD_READ_BUFFER_SIZE: 286 hci_cmd_read_buffer_size(unit, m); 287 break; 288 289 case HCI_CMD_READ_LOCAL_FEATURES: 290 hci_cmd_read_local_features(unit, m); 291 break; 292 293 case HCI_CMD_RESET: 294 hci_cmd_reset(unit, m); 295 break; 296 297 default: 298 break; 299 } 300 301 while (unit->hci_num_cmd_pkts > 0 && MBUFQ_FIRST(&unit->hci_cmdwait)) { 302 MBUFQ_DEQUEUE(&unit->hci_cmdwait, m); 303 hci_output_cmd(unit, m); 304 } 305 } 306 307 /* 308 * Number of Completed Packets 309 * 310 * This is sent periodically by the Controller telling us how many 311 * buffers are now freed up and which handle was using them. From 312 * this we determine which type of buffer it was and add the qty 313 * back into the relevant packet counter, then restart output on 314 * links that have halted. 315 */ 316 static void 317 hci_event_num_compl_pkts(struct hci_unit *unit, struct mbuf *m) 318 { 319 hci_num_compl_pkts_ep ep; 320 struct hci_link *link, *next; 321 uint16_t handle, num; 322 int num_acl = 0, num_sco = 0; 323 324 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 325 m_copydata(m, 0, sizeof(ep), &ep); 326 m_adj(m, sizeof(ep)); 327 328 while (ep.num_con_handles--) { 329 m_copydata(m, 0, sizeof(handle), (caddr_t)&handle); 330 m_adj(m, sizeof(handle)); 331 handle = le16toh(handle); 332 333 m_copydata(m, 0, sizeof(num), (caddr_t)&num); 334 m_adj(m, sizeof(num)); 335 num = le16toh(num); 336 337 link = hci_link_lookup_handle(unit, handle); 338 if (link) { 339 if (link->hl_type == HCI_LINK_ACL) { 340 num_acl += num; 341 hci_acl_complete(link, num); 342 } else { 343 num_sco += num; 344 hci_sco_complete(link, num); 345 } 346 } else { 347 // XXX need to issue Read_Buffer_Size or Reset? 348 printf("%s: unknown handle %d! " 349 "(losing track of %d packet buffer%s)\n", 350 unit->hci_devname, handle, 351 num, (num == 1 ? "" : "s")); 352 } 353 } 354 355 /* 356 * Move up any queued packets. When a link has sent data, it will move 357 * to the back of the queue - technically then if a link had something 358 * to send and there were still buffers available it could get started 359 * twice but it seemed more important to to handle higher loads fairly 360 * than worry about wasting cycles when we are not busy. 361 */ 362 363 unit->hci_num_acl_pkts += num_acl; 364 unit->hci_num_sco_pkts += num_sco; 365 366 link = TAILQ_FIRST(&unit->hci_links); 367 while (link && (unit->hci_num_acl_pkts > 0 || unit->hci_num_sco_pkts > 0)) { 368 next = TAILQ_NEXT(link, hl_next); 369 370 if (link->hl_type == HCI_LINK_ACL) { 371 if (unit->hci_num_acl_pkts > 0 && link->hl_txqlen > 0) 372 hci_acl_start(link); 373 } else { 374 if (unit->hci_num_sco_pkts > 0 && link->hl_txqlen > 0) 375 hci_sco_start(link); 376 } 377 378 link = next; 379 } 380 } 381 382 /* 383 * Inquiry Result 384 * 385 * keep a note of devices seen, so we know which unit to use 386 * on outgoing connections 387 */ 388 static void 389 hci_event_inquiry_result(struct hci_unit *unit, struct mbuf *m) 390 { 391 hci_inquiry_result_ep ep; 392 struct hci_memo *memo; 393 bdaddr_t bdaddr; 394 395 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 396 m_copydata(m, 0, sizeof(ep), &ep); 397 m_adj(m, sizeof(ep)); 398 399 DPRINTFN(1, "%d response%s\n", ep.num_responses, 400 (ep.num_responses == 1 ? "" : "s")); 401 402 while(ep.num_responses--) { 403 m_copydata(m, 0, sizeof(bdaddr_t), (caddr_t)&bdaddr); 404 405 DPRINTFN(1, "bdaddr %02x:%02x:%02x:%02x:%02x:%02x\n", 406 bdaddr.b[5], bdaddr.b[4], bdaddr.b[3], 407 bdaddr.b[2], bdaddr.b[1], bdaddr.b[0]); 408 409 memo = hci_memo_find(unit, &bdaddr); 410 if (memo == NULL) { 411 memo = malloc(sizeof(struct hci_memo), 412 M_BLUETOOTH, M_NOWAIT | M_ZERO); 413 if (memo == NULL) { 414 DPRINTFN(0, "out of memo memory!\n"); 415 break; 416 } 417 418 LIST_INSERT_HEAD(&unit->hci_memos, memo, next); 419 } 420 421 microtime(&memo->time); 422 m_copydata(m, 0, sizeof(hci_inquiry_response), 423 (caddr_t)&memo->response); 424 m_adj(m, sizeof(hci_inquiry_response)); 425 } 426 } 427 428 /* 429 * Connection Complete 430 * 431 * Sent to us when a connection is made. If there is no link 432 * structure already allocated for this, we must have changed 433 * our mind, so just disconnect. 434 */ 435 static void 436 hci_event_con_compl(struct hci_unit *unit, struct mbuf *m) 437 { 438 hci_con_compl_ep ep; 439 hci_write_link_policy_settings_cp cp; 440 struct hci_link *link; 441 int err; 442 443 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 444 m_copydata(m, 0, sizeof(ep), &ep); 445 m_adj(m, sizeof(ep)); 446 447 DPRINTFN(1, "(%s) %s connection complete for " 448 "%02x:%02x:%02x:%02x:%02x:%02x status %#x\n", 449 unit->hci_devname, 450 (ep.link_type == HCI_LINK_ACL ? "ACL" : "SCO"), 451 ep.bdaddr.b[5], ep.bdaddr.b[4], ep.bdaddr.b[3], 452 ep.bdaddr.b[2], ep.bdaddr.b[1], ep.bdaddr.b[0], 453 ep.status); 454 455 link = hci_link_lookup_bdaddr(unit, &ep.bdaddr, ep.link_type); 456 457 if (ep.status) { 458 if (link != NULL) { 459 switch (ep.status) { 460 case 0x04: /* "Page Timeout" */ 461 err = EHOSTDOWN; 462 break; 463 464 case 0x08: /* "Connection Timed Out" */ 465 err = ETIMEDOUT; 466 break; 467 468 case 0x16: /* "Connection Terminated by Local Host" */ 469 err = 0; 470 break; 471 472 default: 473 err = ECONNREFUSED; 474 break; 475 } 476 477 hci_link_free(link, err); 478 } 479 480 return; 481 } 482 483 if (link == NULL) { 484 hci_discon_cp dp; 485 486 dp.con_handle = ep.con_handle; 487 dp.reason = 0x13; /* "Remote User Terminated Connection" */ 488 489 hci_send_cmd(unit, HCI_CMD_DISCONNECT, &dp, sizeof(dp)); 490 return; 491 } 492 493 link->hl_state = HCI_LINK_OPEN; 494 link->hl_handle = HCI_CON_HANDLE(le16toh(ep.con_handle)); 495 496 if (ep.link_type == HCI_LINK_ACL) { 497 cp.con_handle = ep.con_handle; 498 cp.settings = htole16(unit->hci_link_policy); 499 err = hci_send_cmd(unit, HCI_CMD_WRITE_LINK_POLICY_SETTINGS, 500 &cp, sizeof(cp)); 501 if (err) 502 printf("%s: Warning, could not write link policy\n", 503 unit->hci_devname); 504 505 hci_acl_start(link); 506 } else { 507 (*link->hl_sco->sp_proto->connected)(link->hl_sco->sp_upper); 508 } 509 } 510 511 /* 512 * Disconnection Complete 513 * 514 * This is sent in response to a disconnection request, but also if 515 * the remote device goes out of range. 516 */ 517 static void 518 hci_event_discon_compl(struct hci_unit *unit, struct mbuf *m) 519 { 520 hci_discon_compl_ep ep; 521 struct hci_link *link; 522 523 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 524 m_copydata(m, 0, sizeof(ep), &ep); 525 m_adj(m, sizeof(ep)); 526 527 ep.con_handle = le16toh(ep.con_handle); 528 529 DPRINTFN(1, "handle #%d, status=0x%x\n", ep.con_handle, ep.status); 530 531 link = hci_link_lookup_handle(unit, HCI_CON_HANDLE(ep.con_handle)); 532 if (link) 533 hci_link_free(link, ENOLINK); 534 } 535 536 /* 537 * Connect Request 538 * 539 * We check upstream for appropriate listeners and accept connections 540 * that are wanted. 541 */ 542 static void 543 hci_event_con_req(struct hci_unit *unit, struct mbuf *m) 544 { 545 hci_con_req_ep ep; 546 hci_accept_con_cp ap; 547 hci_reject_con_cp rp; 548 struct hci_link *link; 549 550 KASSERT(m->m_pkthdr.len >= sizeof(ep)); 551 m_copydata(m, 0, sizeof(ep), &ep); 552 m_adj(m, sizeof(ep)); 553 554 DPRINTFN(1, "bdaddr %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " 555 "class %2.2x%2.2x%2.2x type %s\n", 556 ep.bdaddr.b[5], ep.bdaddr.b[4], ep.bdaddr.b[3], 557 ep.bdaddr.b[2], ep.bdaddr.b[1], ep.bdaddr.b[0], 558 ep.uclass[0], ep.uclass[1], ep.uclass[2], 559 ep.link_type == HCI_LINK_ACL ? "ACL" : "SCO"); 560 561 if (ep.link_type == HCI_LINK_ACL) 562 link = hci_acl_newconn(unit, &ep.bdaddr); 563 else 564 link = hci_sco_newconn(unit, &ep.bdaddr); 565 566 if (link == NULL) { 567 memset(&rp, 0, sizeof(rp)); 568 bdaddr_copy(&rp.bdaddr, &ep.bdaddr); 569 rp.reason = 0x0f; /* Unacceptable BD_ADDR */ 570 571 hci_send_cmd(unit, HCI_CMD_REJECT_CON, &rp, sizeof(rp)); 572 } else { 573 memset(&ap, 0, sizeof(ap)); 574 bdaddr_copy(&ap.bdaddr, &ep.bdaddr); 575 if (unit->hci_link_policy & HCI_LINK_POLICY_ENABLE_ROLE_SWITCH) 576 ap.role = HCI_ROLE_MASTER; 577 else 578 ap.role = HCI_ROLE_SLAVE; 579 580 hci_send_cmd(unit, HCI_CMD_ACCEPT_CON, &ap, sizeof(ap)); 581 } 582 } 583 584 /* 585 * process results of read_bdaddr command_complete event 586 */ 587 static void 588 hci_cmd_read_bdaddr(struct hci_unit *unit, struct mbuf *m) 589 { 590 hci_read_bdaddr_rp rp; 591 int s; 592 593 KASSERT(m->m_pkthdr.len >= sizeof(rp)); 594 m_copydata(m, 0, sizeof(rp), &rp); 595 m_adj(m, sizeof(rp)); 596 597 if (rp.status > 0) 598 return; 599 600 if ((unit->hci_flags & BTF_INIT_BDADDR) == 0) 601 return; 602 603 bdaddr_copy(&unit->hci_bdaddr, &rp.bdaddr); 604 605 s = splraiseipl(unit->hci_ipl); 606 unit->hci_flags &= ~BTF_INIT_BDADDR; 607 splx(s); 608 609 wakeup(unit); 610 } 611 612 /* 613 * process results of read_buffer_size command_complete event 614 */ 615 static void 616 hci_cmd_read_buffer_size(struct hci_unit *unit, struct mbuf *m) 617 { 618 hci_read_buffer_size_rp rp; 619 int s; 620 621 KASSERT(m->m_pkthdr.len >= sizeof(rp)); 622 m_copydata(m, 0, sizeof(rp), &rp); 623 m_adj(m, sizeof(rp)); 624 625 if (rp.status > 0) 626 return; 627 628 if ((unit->hci_flags & BTF_INIT_BUFFER_SIZE) == 0) 629 return; 630 631 unit->hci_max_acl_size = le16toh(rp.max_acl_size); 632 unit->hci_num_acl_pkts = le16toh(rp.num_acl_pkts); 633 unit->hci_max_sco_size = rp.max_sco_size; 634 unit->hci_num_sco_pkts = le16toh(rp.num_sco_pkts); 635 636 s = splraiseipl(unit->hci_ipl); 637 unit->hci_flags &= ~BTF_INIT_BUFFER_SIZE; 638 splx(s); 639 640 wakeup(unit); 641 } 642 643 /* 644 * process results of read_local_features command_complete event 645 */ 646 static void 647 hci_cmd_read_local_features(struct hci_unit *unit, struct mbuf *m) 648 { 649 hci_read_local_features_rp rp; 650 int s; 651 652 KASSERT(m->m_pkthdr.len >= sizeof(rp)); 653 m_copydata(m, 0, sizeof(rp), &rp); 654 m_adj(m, sizeof(rp)); 655 656 if (rp.status > 0) 657 return; 658 659 if ((unit->hci_flags & BTF_INIT_FEATURES) == 0) 660 return; 661 662 unit->hci_lmp_mask = 0; 663 664 if (rp.features[0] & HCI_LMP_ROLE_SWITCH) 665 unit->hci_lmp_mask |= HCI_LINK_POLICY_ENABLE_ROLE_SWITCH; 666 667 if (rp.features[0] & HCI_LMP_HOLD_MODE) 668 unit->hci_lmp_mask |= HCI_LINK_POLICY_ENABLE_HOLD_MODE; 669 670 if (rp.features[0] & HCI_LMP_SNIFF_MODE) 671 unit->hci_lmp_mask |= HCI_LINK_POLICY_ENABLE_SNIFF_MODE; 672 673 if (rp.features[1] & HCI_LMP_PARK_MODE) 674 unit->hci_lmp_mask |= HCI_LINK_POLICY_ENABLE_PARK_MODE; 675 676 /* ACL packet mask */ 677 unit->hci_acl_mask = HCI_PKT_DM1 | HCI_PKT_DH1; 678 679 if (rp.features[0] & HCI_LMP_3SLOT) 680 unit->hci_acl_mask |= HCI_PKT_DM3 | HCI_PKT_DH3; 681 682 if (rp.features[0] & HCI_LMP_5SLOT) 683 unit->hci_acl_mask |= HCI_PKT_DM5 | HCI_PKT_DH5; 684 685 if ((rp.features[3] & HCI_LMP_EDR_ACL_2MBPS) == 0) 686 unit->hci_acl_mask |= HCI_PKT_2MBPS_DH1 687 | HCI_PKT_2MBPS_DH3 688 | HCI_PKT_2MBPS_DH5; 689 690 if ((rp.features[3] & HCI_LMP_EDR_ACL_3MBPS) == 0) 691 unit->hci_acl_mask |= HCI_PKT_3MBPS_DH1 692 | HCI_PKT_3MBPS_DH3 693 | HCI_PKT_3MBPS_DH5; 694 695 if ((rp.features[4] & HCI_LMP_3SLOT_EDR_ACL) == 0) 696 unit->hci_acl_mask |= HCI_PKT_2MBPS_DH3 697 | HCI_PKT_3MBPS_DH3; 698 699 if ((rp.features[5] & HCI_LMP_5SLOT_EDR_ACL) == 0) 700 unit->hci_acl_mask |= HCI_PKT_2MBPS_DH5 701 | HCI_PKT_3MBPS_DH5; 702 703 unit->hci_packet_type = unit->hci_acl_mask; 704 705 /* SCO packet mask */ 706 unit->hci_sco_mask = 0; 707 if (rp.features[1] & HCI_LMP_SCO_LINK) 708 unit->hci_sco_mask |= HCI_PKT_HV1; 709 710 if (rp.features[1] & HCI_LMP_HV2_PKT) 711 unit->hci_sco_mask |= HCI_PKT_HV2; 712 713 if (rp.features[1] & HCI_LMP_HV3_PKT) 714 unit->hci_sco_mask |= HCI_PKT_HV3; 715 716 if (rp.features[3] & HCI_LMP_EV3_PKT) 717 unit->hci_sco_mask |= HCI_PKT_EV3; 718 719 if (rp.features[4] & HCI_LMP_EV4_PKT) 720 unit->hci_sco_mask |= HCI_PKT_EV4; 721 722 if (rp.features[4] & HCI_LMP_EV5_PKT) 723 unit->hci_sco_mask |= HCI_PKT_EV5; 724 725 // XXX what do 2MBPS/3MBPS/3SLOT eSCO mean? 726 727 s = splraiseipl(unit->hci_ipl); 728 unit->hci_flags &= ~BTF_INIT_FEATURES; 729 splx(s); 730 731 wakeup(unit); 732 733 DPRINTFN(1, "%s: lmp_mask %4.4x, acl_mask %4.4x, sco_mask %4.4x\n", 734 unit->hci_devname, unit->hci_lmp_mask, 735 unit->hci_acl_mask, unit->hci_sco_mask); 736 } 737 738 /* 739 * process results of reset command_complete event 740 * 741 * This has killed all the connections, so close down anything we have left, 742 * and reinitialise the unit. 743 */ 744 static void 745 hci_cmd_reset(struct hci_unit *unit, struct mbuf *m) 746 { 747 hci_reset_rp rp; 748 struct hci_link *link, *next; 749 int acl; 750 751 KASSERT(m->m_pkthdr.len >= sizeof(rp)); 752 m_copydata(m, 0, sizeof(rp), &rp); 753 m_adj(m, sizeof(rp)); 754 755 if (rp.status != 0) 756 return; 757 758 /* 759 * release SCO links first, since they may be holding 760 * an ACL link reference. 761 */ 762 for (acl = 0 ; acl < 2 ; acl++) { 763 next = TAILQ_FIRST(&unit->hci_links); 764 while ((link = next) != NULL) { 765 next = TAILQ_NEXT(link, hl_next); 766 if (acl || link->hl_type != HCI_LINK_ACL) 767 hci_link_free(link, ECONNABORTED); 768 } 769 } 770 771 unit->hci_num_acl_pkts = 0; 772 unit->hci_num_sco_pkts = 0; 773 774 if (hci_send_cmd(unit, HCI_CMD_READ_BDADDR, NULL, 0)) 775 return; 776 777 if (hci_send_cmd(unit, HCI_CMD_READ_BUFFER_SIZE, NULL, 0)) 778 return; 779 780 if (hci_send_cmd(unit, HCI_CMD_READ_LOCAL_FEATURES, NULL, 0)) 781 return; 782 } 783
Indexes created Mon Oct 13 16:09:52 GMT 2025