1 /* 2 * ng_hci_cmds.c 3 * 4 * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: ng_hci_cmds.c,v 1.4 2003/09/08 18:57:51 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/endian.h> 36 #include <sys/malloc.h> 37 #include <sys/mbuf.h> 38 #include <sys/queue.h> 39 #include <netgraph/ng_message.h> 40 #include <netgraph/netgraph.h> 41 #include <netgraph/bluetooth/include/ng_bluetooth.h> 42 #include <netgraph/bluetooth/include/ng_hci.h> 43 #include <netgraph/bluetooth/hci/ng_hci_var.h> 44 #include <netgraph/bluetooth/hci/ng_hci_cmds.h> 45 #include <netgraph/bluetooth/hci/ng_hci_evnt.h> 46 #include <netgraph/bluetooth/hci/ng_hci_ulpi.h> 47 #include <netgraph/bluetooth/hci/ng_hci_misc.h> 48 49 /****************************************************************************** 50 ****************************************************************************** 51 ** HCI commands processing module 52 ****************************************************************************** 53 ******************************************************************************/ 54 55 #undef min 56 #define min(a, b) ((a) < (b))? (a) : (b) 57 58 static int complete_command (ng_hci_unit_p, int, struct mbuf **); 59 60 static int process_link_control_params 61 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 62 static int process_link_policy_params 63 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 64 static int process_hc_baseband_params 65 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 66 static int process_info_params 67 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 68 static int process_status_params 69 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 70 static int process_testing_params 71 (ng_hci_unit_p, u_int16_t, struct mbuf *, struct mbuf *); 72 73 static int process_link_control_status 74 (ng_hci_unit_p, ng_hci_command_status_ep *, struct mbuf *); 75 static int process_link_policy_status 76 (ng_hci_unit_p, ng_hci_command_status_ep *, struct mbuf *); 77 78 /* 79 * Send HCI command to the driver. 80 */ 81 82 int 83 ng_hci_send_command(ng_hci_unit_p unit) 84 { 85 struct mbuf *m0 = NULL, *m = NULL; 86 int free, error = 0; 87 88 /* Check if other command is pending */ 89 if (unit->state & NG_HCI_UNIT_COMMAND_PENDING) 90 return (0); 91 92 /* Check if unit can accept our command */ 93 NG_HCI_BUFF_CMD_GET(unit->buffer, free); 94 if (free == 0) 95 return (0); 96 97 /* Check if driver hook is still ok */ 98 if (unit->drv == NULL || NG_HOOK_NOT_VALID(unit->drv)) { 99 NG_HCI_WARN( 100 "%s: %s - hook \"%s\" is not connected or valid\n", 101 __func__, NG_NODE_NAME(unit->node), NG_HCI_HOOK_DRV); 102 103 NG_BT_MBUFQ_DRAIN(&unit->cmdq); 104 105 return (ENOTCONN); 106 } 107 108 /* 109 * Get first command from queue, give it to RAW hook then 110 * make copy of it and send it to the driver 111 */ 112 113 m0 = NG_BT_MBUFQ_FIRST(&unit->cmdq); 114 if (m0 == NULL) 115 return (0); 116 117 ng_hci_mtap(unit, m0); 118 119 m = m_dup(m0, M_DONTWAIT); 120 if (m != NULL) 121 NG_SEND_DATA_ONLY(error, unit->drv, m); 122 else 123 error = ENOBUFS; 124 125 if (error != 0) 126 NG_HCI_ERR( 127 "%s: %s - could not send HCI command, error=%d\n", 128 __func__, NG_NODE_NAME(unit->node), error); 129 130 /* 131 * Even if we were not able to send command we still pretend 132 * that everything is OK and let timeout handle that. 133 */ 134 135 NG_HCI_BUFF_CMD_USE(unit->buffer, 1); 136 NG_HCI_STAT_CMD_SENT(unit->stat); 137 NG_HCI_STAT_BYTES_SENT(unit->stat, m0->m_pkthdr.len); 138 139 /* 140 * Note: ng_hci_command_timeout() will set 141 * NG_HCI_UNIT_COMMAND_PENDING flag 142 */ 143 144 ng_hci_command_timeout(unit); 145 146 return (0); 147 } /* ng_hci_send_command */ 148 149 /* 150 * Process HCI Command_Compete event. Complete HCI command, and do post 151 * processing on the command parameters (cp) and command return parameters 152 * (e) if required (for example adjust state). 153 */ 154 155 int 156 ng_hci_process_command_complete(ng_hci_unit_p unit, struct mbuf *e) 157 { 158 ng_hci_command_compl_ep *ep = NULL; 159 struct mbuf *cp = NULL; 160 int error = 0; 161 162 /* Get event packet and update command buffer info */ 163 NG_HCI_M_PULLUP(e, sizeof(*ep)); 164 if (e == NULL) 165 return (ENOBUFS); /* XXX this is bad */ 166 167 ep = mtod(e, ng_hci_command_compl_ep *); 168 NG_HCI_BUFF_CMD_SET(unit->buffer, ep->num_cmd_pkts); 169 170 /* Check for special NOOP command */ 171 if (ep->opcode == 0x0000) { 172 NG_FREE_M(e); 173 goto out; 174 } 175 176 /* Try to match first command item in the queue */ 177 error = complete_command(unit, ep->opcode, &cp); 178 if (error != 0) { 179 NG_FREE_M(e); 180 goto out; 181 } 182 183 /* 184 * Perform post processing on command parameters and return parameters 185 * do it only if status is OK (status == 0). Status is the first byte 186 * of any command return parameters. 187 */ 188 189 ep->opcode = le16toh(ep->opcode); 190 m_adj(e, sizeof(*ep)); 191 192 if (*mtod(e, u_int8_t *) == 0) { /* XXX m_pullup here? */ 193 switch (NG_HCI_OGF(ep->opcode)) { 194 case NG_HCI_OGF_LINK_CONTROL: 195 error = process_link_control_params(unit, 196 NG_HCI_OCF(ep->opcode), cp, e); 197 break; 198 199 case NG_HCI_OGF_LINK_POLICY: 200 error = process_link_policy_params(unit, 201 NG_HCI_OCF(ep->opcode), cp, e); 202 break; 203 204 case NG_HCI_OGF_HC_BASEBAND: 205 error = process_hc_baseband_params(unit, 206 NG_HCI_OCF(ep->opcode), cp, e); 207 break; 208 209 case NG_HCI_OGF_INFO: 210 error = process_info_params(unit, 211 NG_HCI_OCF(ep->opcode), cp, e); 212 break; 213 214 case NG_HCI_OGF_STATUS: 215 error = process_status_params(unit, 216 NG_HCI_OCF(ep->opcode), cp, e); 217 break; 218 219 case NG_HCI_OGF_TESTING: 220 error = process_testing_params(unit, 221 NG_HCI_OCF(ep->opcode), cp, e); 222 break; 223 224 case NG_HCI_OGF_BT_LOGO: 225 case NG_HCI_OGF_VENDOR: 226 NG_FREE_M(cp); 227 NG_FREE_M(e); 228 break; 229 230 default: 231 NG_FREE_M(cp); 232 NG_FREE_M(e); 233 error = EINVAL; 234 break; 235 } 236 } else { 237 NG_HCI_ERR( 238 "%s: %s - HCI command failed, OGF=%#x, OCF=%#x, status=%#x\n", 239 __func__, NG_NODE_NAME(unit->node), 240 NG_HCI_OGF(ep->opcode), NG_HCI_OCF(ep->opcode), 241 *mtod(e, u_int8_t *)); 242 243 NG_FREE_M(cp); 244 NG_FREE_M(e); 245 } 246 out: 247 ng_hci_send_command(unit); 248 249 return (error); 250 } /* ng_hci_process_command_complete */ 251 252 /* 253 * Process HCI Command_Status event. Check the status (mst) and do post 254 * processing (if required). 255 */ 256 257 int 258 ng_hci_process_command_status(ng_hci_unit_p unit, struct mbuf *e) 259 { 260 ng_hci_command_status_ep *ep = NULL; 261 struct mbuf *cp = NULL; 262 int error = 0; 263 264 /* Update command buffer info */ 265 NG_HCI_M_PULLUP(e, sizeof(*ep)); 266 if (e == NULL) 267 return (ENOBUFS); /* XXX this is bad */ 268 269 ep = mtod(e, ng_hci_command_status_ep *); 270 NG_HCI_BUFF_CMD_SET(unit->buffer, ep->num_cmd_pkts); 271 272 /* Check for special NOOP command */ 273 if (ep->opcode == 0x0000) 274 goto out; 275 276 /* Try to match first command item in the queue */ 277 error = complete_command(unit, ep->opcode, &cp); 278 if (error != 0) 279 goto out; 280 281 /* 282 * Perform post processing on HCI Command_Status event 283 */ 284 285 ep->opcode = le16toh(ep->opcode); 286 287 switch (NG_HCI_OGF(ep->opcode)) { 288 case NG_HCI_OGF_LINK_CONTROL: 289 error = process_link_control_status(unit, ep, cp); 290 break; 291 292 case NG_HCI_OGF_LINK_POLICY: 293 error = process_link_policy_status(unit, ep, cp); 294 break; 295 296 case NG_HCI_OGF_BT_LOGO: 297 case NG_HCI_OGF_VENDOR: 298 NG_FREE_M(cp); 299 break; 300 301 case NG_HCI_OGF_HC_BASEBAND: 302 case NG_HCI_OGF_INFO: 303 case NG_HCI_OGF_STATUS: 304 case NG_HCI_OGF_TESTING: 305 default: 306 NG_FREE_M(cp); 307 error = EINVAL; 308 break; 309 } 310 out: 311 NG_FREE_M(e); 312 ng_hci_send_command(unit); 313 314 return (error); 315 } /* ng_hci_process_command_status */ 316 317 /* 318 * Complete queued HCI command. 319 */ 320 321 static int 322 complete_command(ng_hci_unit_p unit, int opcode, struct mbuf **cp) 323 { 324 struct mbuf *m = NULL; 325 326 /* Check unit state */ 327 if (!(unit->state & NG_HCI_UNIT_COMMAND_PENDING)) { 328 NG_HCI_ALERT( 329 "%s: %s - no pending command, state=%#x\n", 330 __func__, NG_NODE_NAME(unit->node), unit->state); 331 332 return (EINVAL); 333 } 334 335 /* Get first command in the queue */ 336 m = NG_BT_MBUFQ_FIRST(&unit->cmdq); 337 if (m == NULL) { 338 NG_HCI_ALERT( 339 "%s: %s - empty command queue?!\n", __func__, NG_NODE_NAME(unit->node)); 340 341 return (EINVAL); 342 } 343 344 /* 345 * Match command opcode, if does not match - do nothing and 346 * let timeout handle that. 347 */ 348 349 if (mtod(m, ng_hci_cmd_pkt_t *)->opcode != opcode) { 350 NG_HCI_ALERT( 351 "%s: %s - command queue is out of sync\n", __func__, NG_NODE_NAME(unit->node)); 352 353 return (EINVAL); 354 } 355 356 /* 357 * Now we can remove command timeout, dequeue completed command 358 * and return command parameters. ng_hci_command_untimeout will 359 * drop NG_HCI_UNIT_COMMAND_PENDING flag. 360 * Note: if ng_hci_command_untimeout() fails (returns non-zero) 361 * then timeout aready happened and timeout message went info node 362 * queue. In this case we ignore command completion and pretend 363 * there is a timeout. 364 */ 365 366 if (ng_hci_command_untimeout(unit) != 0) 367 return (ETIMEDOUT); 368 369 NG_BT_MBUFQ_DEQUEUE(&unit->cmdq, *cp); 370 m_adj(*cp, sizeof(ng_hci_cmd_pkt_t)); 371 372 return (0); 373 } /* complete_command */ 374 375 /* 376 * Process HCI command timeout 377 */ 378 379 void 380 ng_hci_process_command_timeout(node_p node, hook_p hook, void *arg1, int arg2) 381 { 382 ng_hci_unit_p unit = NULL; 383 struct mbuf *m = NULL; 384 u_int16_t opcode; 385 386 if (NG_NODE_NOT_VALID(node)) { 387 printf("%s: Netgraph node is not valid\n", __func__); 388 return; 389 } 390 391 unit = (ng_hci_unit_p) NG_NODE_PRIVATE(node); 392 393 if (unit->state & NG_HCI_UNIT_COMMAND_PENDING) { 394 unit->state &= ~NG_HCI_UNIT_COMMAND_PENDING; 395 396 NG_BT_MBUFQ_DEQUEUE(&unit->cmdq, m); 397 if (m == NULL) { 398 NG_HCI_ALERT( 399 "%s: %s - command queue is out of sync!\n", __func__, NG_NODE_NAME(unit->node)); 400 401 return; 402 } 403 404 opcode = le16toh(mtod(m, ng_hci_cmd_pkt_t *)->opcode); 405 NG_FREE_M(m); 406 407 NG_HCI_ERR( 408 "%s: %s - unable to complete HCI command OGF=%#x, OCF=%#x. Timeout\n", 409 __func__, NG_NODE_NAME(unit->node), NG_HCI_OGF(opcode), 410 NG_HCI_OCF(opcode)); 411 412 /* Try to send more commands */ 413 NG_HCI_BUFF_CMD_SET(unit->buffer, 1); 414 ng_hci_send_command(unit); 415 } else 416 NG_HCI_ALERT( 417 "%s: %s - no pending command\n", __func__, NG_NODE_NAME(unit->node)); 418 } /* ng_hci_process_command_timeout */ 419 420 /* 421 * Process link command return parameters 422 */ 423 424 static int 425 process_link_control_params(ng_hci_unit_p unit, u_int16_t ocf, 426 struct mbuf *mcp, struct mbuf *mrp) 427 { 428 int error = 0; 429 430 switch (ocf) { 431 case NG_HCI_OCF_INQUIRY_CANCEL: 432 case NG_HCI_OCF_PERIODIC_INQUIRY: 433 case NG_HCI_OCF_EXIT_PERIODIC_INQUIRY: 434 case NG_HCI_OCF_LINK_KEY_REP: 435 case NG_HCI_OCF_LINK_KEY_NEG_REP: 436 case NG_HCI_OCF_PIN_CODE_REP: 437 case NG_HCI_OCF_PIN_CODE_NEG_REP: 438 /* These do not need post processing */ 439 break; 440 441 case NG_HCI_OCF_INQUIRY: 442 case NG_HCI_OCF_CREATE_CON: 443 case NG_HCI_OCF_DISCON: 444 case NG_HCI_OCF_ADD_SCO_CON: 445 case NG_HCI_OCF_ACCEPT_CON: 446 case NG_HCI_OCF_REJECT_CON: 447 case NG_HCI_OCF_CHANGE_CON_PKT_TYPE: 448 case NG_HCI_OCF_AUTH_REQ: 449 case NG_HCI_OCF_SET_CON_ENCRYPTION: 450 case NG_HCI_OCF_CHANGE_CON_LINK_KEY: 451 case NG_HCI_OCF_MASTER_LINK_KEY: 452 case NG_HCI_OCF_REMOTE_NAME_REQ: 453 case NG_HCI_OCF_READ_REMOTE_FEATURES: 454 case NG_HCI_OCF_READ_REMOTE_VER_INFO: 455 case NG_HCI_OCF_READ_CLOCK_OFFSET: 456 default: 457 458 /* 459 * None of these command was supposed to generate 460 * Command_Complete event. Instead Command_Status event 461 * should have been generated and then appropriate event 462 * should have been sent to indicate the final result. 463 */ 464 465 error = EINVAL; 466 break; 467 } 468 469 NG_FREE_M(mcp); 470 NG_FREE_M(mrp); 471 472 return (error); 473 } /* process_link_control_params */ 474 475 /* 476 * Process link policy command return parameters 477 */ 478 479 static int 480 process_link_policy_params(ng_hci_unit_p unit, u_int16_t ocf, 481 struct mbuf *mcp, struct mbuf *mrp) 482 { 483 int error = 0; 484 485 switch (ocf){ 486 case NG_HCI_OCF_ROLE_DISCOVERY: { 487 ng_hci_role_discovery_rp *rp = NULL; 488 ng_hci_unit_con_t *con = NULL; 489 u_int16_t h; 490 491 NG_HCI_M_PULLUP(mrp, sizeof(*rp)); 492 if (mrp != NULL) { 493 rp = mtod(mrp, ng_hci_role_discovery_rp *); 494 495 h = NG_HCI_CON_HANDLE(le16toh(rp->con_handle)); 496 con = ng_hci_con_by_handle(unit, h); 497 if (con == NULL) { 498 NG_HCI_ALERT( 499 "%s: %s - invalid connection handle=%d\n", 500 __func__, NG_NODE_NAME(unit->node), h); 501 error = ENOENT; 502 } else if (con->link_type != NG_HCI_LINK_ACL) { 503 NG_HCI_ALERT( 504 "%s: %s - invalid link type=%d\n", __func__, NG_NODE_NAME(unit->node), 505 con->link_type); 506 error = EINVAL; 507 } else 508 con->role = rp->role; 509 } else 510 error = ENOBUFS; 511 } break; 512 513 case NG_HCI_OCF_READ_LINK_POLICY_SETTINGS: 514 case NG_HCI_OCF_WRITE_LINK_POLICY_SETTINGS: 515 /* These do not need post processing */ 516 break; 517 518 case NG_HCI_OCF_HOLD_MODE: 519 case NG_HCI_OCF_SNIFF_MODE: 520 case NG_HCI_OCF_EXIT_SNIFF_MODE: 521 case NG_HCI_OCF_PARK_MODE: 522 case NG_HCI_OCF_EXIT_PARK_MODE: 523 case NG_HCI_OCF_QOS_SETUP: 524 case NG_HCI_OCF_SWITCH_ROLE: 525 default: 526 527 /* 528 * None of these command was supposed to generate 529 * Command_Complete event. Instead Command_Status event 530 * should have been generated and then appropriate event 531 * should have been sent to indicate the final result. 532 */ 533 534 error = EINVAL; 535 break; 536 } 537 538 NG_FREE_M(mcp); 539 NG_FREE_M(mrp); 540 541 return (error); 542 } /* process_link_policy_params */ 543 544 /* 545 * Process HC and baseband command return parameters 546 */ 547 548 int 549 process_hc_baseband_params(ng_hci_unit_p unit, u_int16_t ocf, 550 struct mbuf *mcp, struct mbuf *mrp) 551 { 552 int error = 0; 553 554 switch (ocf) { 555 case NG_HCI_OCF_SET_EVENT_MASK: 556 case NG_HCI_OCF_SET_EVENT_FILTER: 557 case NG_HCI_OCF_FLUSH: /* XXX Do we need to handle that? */ 558 case NG_HCI_OCF_READ_PIN_TYPE: 559 case NG_HCI_OCF_WRITE_PIN_TYPE: 560 case NG_HCI_OCF_CREATE_NEW_UNIT_KEY: 561 case NG_HCI_OCF_WRITE_STORED_LINK_KEY: 562 case NG_HCI_OCF_WRITE_CON_ACCEPT_TIMO: 563 case NG_HCI_OCF_WRITE_PAGE_TIMO: 564 case NG_HCI_OCF_READ_SCAN_ENABLE: 565 case NG_HCI_OCF_WRITE_SCAN_ENABLE: 566 case NG_HCI_OCF_WRITE_PAGE_SCAN_ACTIVITY: 567 case NG_HCI_OCF_WRITE_INQUIRY_SCAN_ACTIVITY: 568 case NG_HCI_OCF_READ_AUTH_ENABLE: 569 case NG_HCI_OCF_WRITE_AUTH_ENABLE: 570 case NG_HCI_OCF_READ_ENCRYPTION_MODE: 571 case NG_HCI_OCF_WRITE_ENCRYPTION_MODE: 572 case NG_HCI_OCF_WRITE_VOICE_SETTINGS: 573 case NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS: 574 case NG_HCI_OCF_WRITE_NUM_BROADCAST_RETRANS: 575 case NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY: 576 case NG_HCI_OCF_WRITE_HOLD_MODE_ACTIVITY: 577 case NG_HCI_OCF_READ_SCO_FLOW_CONTROL: 578 case NG_HCI_OCF_WRITE_SCO_FLOW_CONTROL: 579 case NG_HCI_OCF_H2HC_FLOW_CONTROL: /* XXX Not supported this time */ 580 case NG_HCI_OCF_HOST_BUFFER_SIZE: 581 case NG_HCI_OCF_READ_IAC_LAP: 582 case NG_HCI_OCF_WRITE_IAC_LAP: 583 case NG_HCI_OCF_READ_PAGE_SCAN_PERIOD: 584 case NG_HCI_OCF_WRITE_PAGE_SCAN_PERIOD: 585 case NG_HCI_OCF_READ_PAGE_SCAN: 586 case NG_HCI_OCF_WRITE_PAGE_SCAN: 587 case NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO: 588 case NG_HCI_OCF_WRITE_LINK_SUPERVISION_TIMO: 589 case NG_HCI_OCF_READ_SUPPORTED_IAC_NUM: 590 case NG_HCI_OCF_READ_STORED_LINK_KEY: 591 case NG_HCI_OCF_DELETE_STORED_LINK_KEY: 592 case NG_HCI_OCF_READ_CON_ACCEPT_TIMO: 593 case NG_HCI_OCF_READ_PAGE_TIMO: 594 case NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY: 595 case NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY: 596 case NG_HCI_OCF_READ_VOICE_SETTINGS: 597 case NG_HCI_OCF_READ_AUTO_FLUSH_TIMO: 598 case NG_HCI_OCF_WRITE_AUTO_FLUSH_TIMO: 599 case NG_HCI_OCF_READ_XMIT_LEVEL: 600 case NG_HCI_OCF_HOST_NUM_COMPL_PKTS: /* XXX Can get here? */ 601 case NG_HCI_OCF_CHANGE_LOCAL_NAME: 602 case NG_HCI_OCF_READ_LOCAL_NAME: 603 case NG_HCI_OCF_READ_UNIT_CLASS: 604 case NG_HCI_OCF_WRITE_UNIT_CLASS: 605 /* These do not need post processing */ 606 break; 607 608 case NG_HCI_OCF_RESET: { 609 ng_hci_unit_con_p con = NULL; 610 int size; 611 612 /* 613 * XXX 614 * 615 * After RESET command unit goes into standby mode 616 * and all operational state is lost. Host controller 617 * will revert to default values for all parameters. 618 * 619 * For now we shall terminate all connections and drop 620 * inited bit. After RESET unit must be re-initialized. 621 */ 622 623 while (!LIST_EMPTY(&unit->con_list)) { 624 con = LIST_FIRST(&unit->con_list); 625 626 /* Remove all timeouts (if any) */ 627 if (con->flags & NG_HCI_CON_TIMEOUT_PENDING) 628 ng_hci_con_untimeout(con); 629 630 /* Connection terminated by local host */ 631 ng_hci_lp_discon_ind(con, 0x16); 632 ng_hci_free_con(con); 633 } 634 635 NG_HCI_BUFF_ACL_TOTAL(unit->buffer, size); 636 NG_HCI_BUFF_ACL_FREE(unit->buffer, size); 637 638 NG_HCI_BUFF_SCO_TOTAL(unit->buffer, size); 639 NG_HCI_BUFF_SCO_FREE(unit->buffer, size); 640 641 unit->state &= ~NG_HCI_UNIT_INITED; 642 } break; 643 644 default: 645 error = EINVAL; 646 break; 647 } 648 649 NG_FREE_M(mcp); 650 NG_FREE_M(mrp); 651 652 return (error); 653 } /* process_hc_baseband_params */ 654 655 /* 656 * Process info command return parameters 657 */ 658 659 static int 660 process_info_params(ng_hci_unit_p unit, u_int16_t ocf, struct mbuf *mcp, 661 struct mbuf *mrp) 662 { 663 int error = 0, len; 664 665 switch (ocf) { 666 case NG_HCI_OCF_READ_LOCAL_VER: 667 case NG_HCI_OCF_READ_COUNTRY_CODE: 668 break; 669 670 case NG_HCI_OCF_READ_LOCAL_FEATURES: 671 m_adj(mrp, sizeof(u_int8_t)); 672 len = min(mrp->m_pkthdr.len, sizeof(unit->features)); 673 m_copydata(mrp, 0, len, (caddr_t) unit->features); 674 break; 675 676 case NG_HCI_OCF_READ_BUFFER_SIZE: { 677 ng_hci_read_buffer_size_rp *rp = NULL; 678 679 /* Do not update buffer descriptor if node was initialized */ 680 if ((unit->state & NG_HCI_UNIT_READY) == NG_HCI_UNIT_READY) 681 break; 682 683 NG_HCI_M_PULLUP(mrp, sizeof(*rp)); 684 if (mrp != NULL) { 685 rp = mtod(mrp, ng_hci_read_buffer_size_rp *); 686 687 NG_HCI_BUFF_ACL_SET( 688 unit->buffer, 689 le16toh(rp->num_acl_pkt), /* number */ 690 le16toh(rp->max_acl_size), /* size */ 691 le16toh(rp->num_acl_pkt) /* free */ 692 ); 693 694 NG_HCI_BUFF_SCO_SET( 695 unit->buffer, 696 le16toh(rp->num_sco_pkt), /* number */ 697 rp->max_sco_size, /* size */ 698 le16toh(rp->num_sco_pkt) /* free */ 699 ); 700 701 /* Let upper layers know */ 702 ng_hci_node_is_up(unit->node, unit->acl, NULL, 0); 703 ng_hci_node_is_up(unit->node, unit->sco, NULL, 0); 704 } else 705 error = ENOBUFS; 706 } break; 707 708 case NG_HCI_OCF_READ_BDADDR: 709 /* Do not update BD_ADDR if node was initialized */ 710 if ((unit->state & NG_HCI_UNIT_READY) == NG_HCI_UNIT_READY) 711 break; 712 713 m_adj(mrp, sizeof(u_int8_t)); 714 len = min(mrp->m_pkthdr.len, sizeof(unit->bdaddr)); 715 m_copydata(mrp, 0, len, (caddr_t) &unit->bdaddr); 716 717 /* Let upper layers know */ 718 ng_hci_node_is_up(unit->node, unit->acl, NULL, 0); 719 ng_hci_node_is_up(unit->node, unit->sco, NULL, 0); 720 break; 721 722 default: 723 error = EINVAL; 724 break; 725 } 726 727 NG_FREE_M(mcp); 728 NG_FREE_M(mrp); 729 730 return (error); 731 } /* process_info_params */ 732 733 /* 734 * Process status command return parameters 735 */ 736 737 static int 738 process_status_params(ng_hci_unit_p unit, u_int16_t ocf, struct mbuf *mcp, 739 struct mbuf *mrp) 740 { 741 int error = 0; 742 743 switch (ocf) { 744 case NG_HCI_OCF_READ_FAILED_CONTACT_CNTR: 745 case NG_HCI_OCF_RESET_FAILED_CONTACT_CNTR: 746 case NG_HCI_OCF_GET_LINK_QUALITY: 747 case NG_HCI_OCF_READ_RSSI: 748 /* These do not need post processing */ 749 break; 750 751 default: 752 error = EINVAL; 753 break; 754 } 755 756 NG_FREE_M(mcp); 757 NG_FREE_M(mrp); 758 759 return (error); 760 } /* process_status_params */ 761 762 /* 763 * Process testing command return parameters 764 */ 765 766 int 767 process_testing_params(ng_hci_unit_p unit, u_int16_t ocf, struct mbuf *mcp, 768 struct mbuf *mrp) 769 { 770 int error = 0; 771 772 switch (ocf) { 773 774 /* 775 * XXX FIXME 776 * We do not support these features at this time. However, 777 * HCI node could support this and do something smart. At least 778 * node can change unit state. 779 */ 780 781 case NG_HCI_OCF_READ_LOOPBACK_MODE: 782 case NG_HCI_OCF_WRITE_LOOPBACK_MODE: 783 case NG_HCI_OCF_ENABLE_UNIT_UNDER_TEST: 784 break; 785 786 default: 787 error = EINVAL; 788 break; 789 } 790 791 NG_FREE_M(mcp); 792 NG_FREE_M(mrp); 793 794 return (error); 795 } /* process_testing_params */ 796 797 /* 798 * Process link control command status 799 */ 800 801 static int 802 process_link_control_status(ng_hci_unit_p unit, ng_hci_command_status_ep *ep, 803 struct mbuf *mcp) 804 { 805 int error = 0; 806 807 switch (NG_HCI_OCF(ep->opcode)) { 808 case NG_HCI_OCF_INQUIRY: 809 case NG_HCI_OCF_DISCON: /* XXX */ 810 case NG_HCI_OCF_REJECT_CON: /* XXX */ 811 case NG_HCI_OCF_CHANGE_CON_PKT_TYPE: 812 case NG_HCI_OCF_AUTH_REQ: 813 case NG_HCI_OCF_SET_CON_ENCRYPTION: 814 case NG_HCI_OCF_CHANGE_CON_LINK_KEY: 815 case NG_HCI_OCF_MASTER_LINK_KEY: 816 case NG_HCI_OCF_REMOTE_NAME_REQ: 817 case NG_HCI_OCF_READ_REMOTE_FEATURES: 818 case NG_HCI_OCF_READ_REMOTE_VER_INFO: 819 case NG_HCI_OCF_READ_CLOCK_OFFSET: 820 /* These do not need post processing */ 821 break; 822 823 case NG_HCI_OCF_CREATE_CON: 824 break; 825 826 case NG_HCI_OCF_ADD_SCO_CON: 827 break; 828 829 case NG_HCI_OCF_ACCEPT_CON: 830 break; 831 832 case NG_HCI_OCF_INQUIRY_CANCEL: 833 case NG_HCI_OCF_PERIODIC_INQUIRY: 834 case NG_HCI_OCF_EXIT_PERIODIC_INQUIRY: 835 case NG_HCI_OCF_LINK_KEY_REP: 836 case NG_HCI_OCF_LINK_KEY_NEG_REP: 837 case NG_HCI_OCF_PIN_CODE_REP: 838 case NG_HCI_OCF_PIN_CODE_NEG_REP: 839 default: 840 841 /* 842 * None of these command was supposed to generate 843 * Command_Status event. Instead Command_Complete event 844 * should have been sent. 845 */ 846 847 error = EINVAL; 848 break; 849 } 850 851 NG_FREE_M(mcp); 852 853 return (error); 854 } /* process_link_control_status */ 855 856 /* 857 * Process link policy command status 858 */ 859 860 static int 861 process_link_policy_status(ng_hci_unit_p unit, ng_hci_command_status_ep *ep, 862 struct mbuf *mcp) 863 { 864 int error = 0; 865 866 switch (NG_HCI_OCF(ep->opcode)) { 867 case NG_HCI_OCF_HOLD_MODE: 868 case NG_HCI_OCF_SNIFF_MODE: 869 case NG_HCI_OCF_EXIT_SNIFF_MODE: 870 case NG_HCI_OCF_PARK_MODE: 871 case NG_HCI_OCF_EXIT_PARK_MODE: 872 case NG_HCI_OCF_SWITCH_ROLE: 873 /* These do not need post processing */ 874 break; 875 876 case NG_HCI_OCF_QOS_SETUP: 877 break; 878 879 case NG_HCI_OCF_ROLE_DISCOVERY: 880 case NG_HCI_OCF_READ_LINK_POLICY_SETTINGS: 881 case NG_HCI_OCF_WRITE_LINK_POLICY_SETTINGS: 882 default: 883 884 /* 885 * None of these command was supposed to generate 886 * Command_Status event. Instead Command_Complete event 887 * should have been sent. 888 */ 889 890 error = EINVAL; 891 break; 892 } 893 894 NG_FREE_M(mcp); 895 896 return (error); 897 } /* process_link_policy_status */ 898 899