net/bluetooth/hci_event.c

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (C) 2000-2001 Qualcomm Incorporated
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 /* Bluetooth HCI event handling. */
  26
  27 #include <linux/module.h>
  28
  29 #include <linux/types.h>
  30 #include <linux/errno.h>
  31 #include <linux/kernel.h>
  32 #include <linux/sched.h>
  33 #include <linux/slab.h>
  34 #include <linux/poll.h>
  35 #include <linux/fcntl.h>
  36 #include <linux/init.h>
  37 #include <linux/skbuff.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/notifier.h>
  40 #include <net/sock.h>
  41
  42 #include <asm/system.h>
  43 #include <asm/uaccess.h>
  44 #include <asm/unaligned.h>
  45
  46 #include <net/bluetooth/bluetooth.h>
  47 #include <net/bluetooth/hci_core.h>
  48
  49 #ifndef CONFIG_BT_HCI_CORE_DEBUG
  50 #undef  BT_DBG
  51 #define BT_DBG(D...)
  52 #endif
  53
  54 /* Handle HCI Event packets */
  55
  56 /* Command Complete OGF LINK_CTL  */
  57 static void hci_cc_link_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
  58 {
  59         __u8 status;
  60
  61         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
  62
  63         switch (ocf) {
  64         case OCF_INQUIRY_CANCEL:
  65         case OCF_EXIT_PERIODIC_INQ:
  66                 status = *((__u8 *) skb->data);
  67
  68                 if (status) {
  69                         BT_DBG("%s Inquiry cancel error: status 0x%x", hdev->name, status);
  70                 } else {
  71                         clear_bit(HCI_INQUIRY, &hdev->flags);
  72                         hci_req_complete(hdev, status);
  73                 }
  74                 break;
  75
  76         default:
  77                 BT_DBG("%s Command complete: ogf LINK_CTL ocf %x", hdev->name, ocf);
  78                 break;
  79         }
  80 }
  81
  82 /* Command Complete OGF LINK_POLICY  */
  83 static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
  84 {
  85         struct hci_conn *conn;
  86         struct hci_rp_role_discovery *rd;
  87         struct hci_rp_write_link_policy *lp;
  88         void *sent;
  89
  90         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
  91
  92         switch (ocf) {
  93         case OCF_ROLE_DISCOVERY:
  94                 rd = (void *) skb->data;
  95
  96                 if (rd->status)
  97                         break;
  98
  99                 hci_dev_lock(hdev);
 100
 101                 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rd->handle));
 102                 if (conn) {
 103                         if (rd->role)
 104                                 conn->link_mode &= ~HCI_LM_MASTER;
 105                         else
 106                                 conn->link_mode |= HCI_LM_MASTER;
 107                 }
 108
 109                 hci_dev_unlock(hdev);
 110                 break;
 111
 112         case OCF_WRITE_LINK_POLICY:
 113                 sent = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY);
 114                 if (!sent)
 115                         break;
 116
 117                 lp = (struct hci_rp_write_link_policy *) skb->data;
 118
 119                 if (lp->status)
 120                         break;
 121
 122                 hci_dev_lock(hdev);
 123
 124                 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(lp->handle));
 125                 if (conn) {
 126                         __le16 policy = get_unaligned((__le16 *) (sent + 2));
 127                         conn->link_policy = __le16_to_cpu(policy);
 128                 }
 129
 130                 hci_dev_unlock(hdev);
 131                 break;
 132
 133         default:
 134                 BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x",
 135                                 hdev->name, ocf);
 136                 break;
 137         }
 138 }
 139
 140 /* Command Complete OGF HOST_CTL  */
 141 static void hci_cc_host_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
 142 {
 143         __u8 status, param;
 144         __u16 setting;
 145         struct hci_rp_read_voice_setting *vs;
 146         void *sent;
 147
 148         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 149
 150         switch (ocf) {
 151         case OCF_RESET:
 152                 status = *((__u8 *) skb->data);
 153                 hci_req_complete(hdev, status);
 154                 break;
 155
 156         case OCF_SET_EVENT_FLT:
 157                 status = *((__u8 *) skb->data);
 158                 if (status) {
 159                         BT_DBG("%s SET_EVENT_FLT failed %d", hdev->name, status);
 160                 } else {
 161                         BT_DBG("%s SET_EVENT_FLT succeseful", hdev->name);
 162                 }
 163                 break;
 164
 165         case OCF_WRITE_AUTH_ENABLE:
 166                 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_AUTH_ENABLE);
 167                 if (!sent)
 168                         break;
 169
 170                 status = *((__u8 *) skb->data);
 171                 param  = *((__u8 *) sent);
 172
 173                 if (!status) {
 174                         if (param == AUTH_ENABLED)
 175                                 set_bit(HCI_AUTH, &hdev->flags);
 176                         else
 177                                 clear_bit(HCI_AUTH, &hdev->flags);
 178                 }
 179                 hci_req_complete(hdev, status);
 180                 break;
 181
 182         case OCF_WRITE_ENCRYPT_MODE:
 183                 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_ENCRYPT_MODE);
 184                 if (!sent)
 185                         break;
 186
 187                 status = *((__u8 *) skb->data);
 188                 param  = *((__u8 *) sent);
 189
 190                 if (!status) {
 191                         if (param)
 192                                 set_bit(HCI_ENCRYPT, &hdev->flags);
 193                         else
 194                                 clear_bit(HCI_ENCRYPT, &hdev->flags);
 195                 }
 196                 hci_req_complete(hdev, status);
 197                 break;
 198
 199         case OCF_WRITE_CA_TIMEOUT:
 200                 status = *((__u8 *) skb->data);
 201                 if (status) {
 202                         BT_DBG("%s OCF_WRITE_CA_TIMEOUT failed %d", hdev->name, status);
 203                 } else {
 204                         BT_DBG("%s OCF_WRITE_CA_TIMEOUT succeseful", hdev->name);
 205                 }
 206                 break;
 207
 208         case OCF_WRITE_PG_TIMEOUT:
 209                 status = *((__u8 *) skb->data);
 210                 if (status) {
 211                         BT_DBG("%s OCF_WRITE_PG_TIMEOUT failed %d", hdev->name, status);
 212                 } else {
 213                         BT_DBG("%s: OCF_WRITE_PG_TIMEOUT succeseful", hdev->name);
 214                 }
 215                 break;
 216
 217         case OCF_WRITE_SCAN_ENABLE:
 218                 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE);
 219                 if (!sent)
 220                         break;
 221
 222                 status = *((__u8 *) skb->data);
 223                 param  = *((__u8 *) sent);
 224
 225                 BT_DBG("param 0x%x", param);
 226
 227                 if (!status) {
 228                         clear_bit(HCI_PSCAN, &hdev->flags);
 229                         clear_bit(HCI_ISCAN, &hdev->flags);
 230                         if (param & SCAN_INQUIRY)
 231                                 set_bit(HCI_ISCAN, &hdev->flags);
 232
 233                         if (param & SCAN_PAGE)
 234                                 set_bit(HCI_PSCAN, &hdev->flags);
 235                 }
 236                 hci_req_complete(hdev, status);
 237                 break;
 238
 239         case OCF_READ_VOICE_SETTING:
 240                 vs = (struct hci_rp_read_voice_setting *) skb->data;
 241
 242                 if (vs->status) {
 243                         BT_DBG("%s READ_VOICE_SETTING failed %d", hdev->name, vs->status);
 244                         break;
 245                 }
 246
 247                 setting = __le16_to_cpu(vs->voice_setting);
 248
 249                 if (hdev->voice_setting != setting ) {
 250                         hdev->voice_setting = setting;
 251
 252                         BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
 253
 254                         if (hdev->notify) {
 255                                 tasklet_disable(&hdev->tx_task);
 256                                 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 257                                 tasklet_enable(&hdev->tx_task);
 258                         }
 259                 }
 260                 break;
 261
 262         case OCF_WRITE_VOICE_SETTING:
 263                 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING);
 264                 if (!sent)
 265                         break;
 266
 267                 status = *((__u8 *) skb->data);
 268                 setting = __le16_to_cpu(get_unaligned((__le16 *) sent));
 269
 270                 if (!status && hdev->voice_setting != setting) {
 271                         hdev->voice_setting = setting;
 272
 273                         BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
 274
 275                         if (hdev->notify) {
 276                                 tasklet_disable(&hdev->tx_task);
 277                                 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 278                                 tasklet_enable(&hdev->tx_task);
 279                         }
 280                 }
 281                 hci_req_complete(hdev, status);
 282                 break;
 283
 284         case OCF_HOST_BUFFER_SIZE:
 285                 status = *((__u8 *) skb->data);
 286                 if (status) {
 287                         BT_DBG("%s OCF_BUFFER_SIZE failed %d", hdev->name, status);
 288                         hci_req_complete(hdev, status);
 289                 }
 290                 break;
 291
 292         default:
 293                 BT_DBG("%s Command complete: ogf HOST_CTL ocf %x", hdev->name, ocf);
 294                 break;
 295         }
 296 }
 297
 298 /* Command Complete OGF INFO_PARAM  */
 299 static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
 300 {
 301         struct hci_rp_read_loc_version *lv;
 302         struct hci_rp_read_local_features *lf;
 303         struct hci_rp_read_buffer_size *bs;
 304         struct hci_rp_read_bd_addr *ba;
 305
 306         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 307
 308         switch (ocf) {
 309         case OCF_READ_LOCAL_VERSION:
 310                 lv = (struct hci_rp_read_loc_version *) skb->data;
 311
 312                 if (lv->status) {
 313                         BT_DBG("%s READ_LOCAL_VERSION failed %d", hdev->name, lf->status);
 314                         break;
 315                 }
 316
 317                 hdev->hci_ver = lv->hci_ver;
 318                 hdev->hci_rev = btohs(lv->hci_rev);
 319                 hdev->manufacturer = btohs(lv->manufacturer);
 320
 321                 BT_DBG("%s: manufacturer %d hci_ver %d hci_rev %d", hdev->name,
 322                                 hdev->manufacturer, hdev->hci_ver, hdev->hci_rev);
 323
 324                 break;
 325
 326         case OCF_READ_LOCAL_FEATURES:
 327                 lf = (struct hci_rp_read_local_features *) skb->data;
 328
 329                 if (lf->status) {
 330                         BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
 331                         break;
 332                 }
 333
 334                 memcpy(hdev->features, lf->features, sizeof(hdev->features));
 335
 336                 /* Adjust default settings according to features
 337                  * supported by device. */
 338                 if (hdev->features[0] & LMP_3SLOT)
 339                         hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
 340
 341                 if (hdev->features[0] & LMP_5SLOT)
 342                         hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
 343
 344                 if (hdev->features[1] & LMP_HV2)
 345                         hdev->pkt_type |= (HCI_HV2);
 346
 347                 if (hdev->features[1] & LMP_HV3)
 348                         hdev->pkt_type |= (HCI_HV3);
 349
 350                 BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name,
 351                                 lf->features[0], lf->features[1], lf->features[2]);
 352
 353                 break;
 354
 355         case OCF_READ_BUFFER_SIZE:
 356                 bs = (struct hci_rp_read_buffer_size *) skb->data;
 357
 358                 if (bs->status) {
 359                         BT_DBG("%s READ_BUFFER_SIZE failed %d", hdev->name, bs->status);
 360                         hci_req_complete(hdev, bs->status);
 361                         break;
 362                 }
 363
 364                 hdev->acl_mtu  = __le16_to_cpu(bs->acl_mtu);
 365                 hdev->sco_mtu  = bs->sco_mtu;
 366                 hdev->acl_pkts = __le16_to_cpu(bs->acl_max_pkt);
 367                 hdev->sco_pkts = __le16_to_cpu(bs->sco_max_pkt);
 368
 369                 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
 370                         hdev->sco_mtu  = 64;
 371                         hdev->sco_pkts = 8;
 372                 }
 373
 374                 hdev->acl_cnt = hdev->acl_pkts;
 375                 hdev->sco_cnt = hdev->sco_pkts;
 376
 377                 BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
 378                         hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
 379                 break;
 380
 381         case OCF_READ_BD_ADDR:
 382                 ba = (struct hci_rp_read_bd_addr *) skb->data;
 383
 384                 if (!ba->status) {
 385                         bacpy(&hdev->bdaddr, &ba->bdaddr);
 386                 } else {
 387                         BT_DBG("%s: READ_BD_ADDR failed %d", hdev->name, ba->status);
 388                 }
 389
 390                 hci_req_complete(hdev, ba->status);
 391                 break;
 392
 393         default:
 394                 BT_DBG("%s Command complete: ogf INFO_PARAM ocf %x", hdev->name, ocf);
 395                 break;
 396         }
 397 }
 398
 399 /* Command Status OGF LINK_CTL  */
 400 static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
 401 {
 402         struct hci_conn *conn;
 403         struct hci_cp_create_conn *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_CREATE_CONN);
 404
 405         if (!cp)
 406                 return;
 407
 408         hci_dev_lock(hdev);
 409
 410         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
 411
 412         BT_DBG("%s status 0x%x bdaddr %s conn %p", hdev->name,
 413                         status, batostr(&cp->bdaddr), conn);
 414
 415         if (status) {
 416                 if (conn && conn->state == BT_CONNECT) {
 417                         conn->state = BT_CLOSED;
 418                         hci_proto_connect_cfm(conn, status);
 419                         hci_conn_del(conn);
 420                 }
 421         } else {
 422                 if (!conn) {
 423                         conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
 424                         if (conn) {
 425                                 conn->out = 1;
 426                                 conn->link_mode |= HCI_LM_MASTER;
 427                         } else
 428                                 BT_ERR("No memmory for new connection");
 429                 }
 430         }
 431
 432         hci_dev_unlock(hdev);
 433 }
 434
 435 static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
 436 {
 437         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 438
 439         switch (ocf) {
 440         case OCF_CREATE_CONN:
 441                 hci_cs_create_conn(hdev, status);
 442                 break;
 443
 444         case OCF_ADD_SCO:
 445                 if (status) {
 446                         struct hci_conn *acl, *sco;
 447                         struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
 448                         __u16 handle;
 449
 450                         if (!cp)
 451                                 break;
 452
 453                         handle = __le16_to_cpu(cp->handle);
 454
 455                         BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
 456
 457                         hci_dev_lock(hdev);
 458
 459                         acl = hci_conn_hash_lookup_handle(hdev, handle);
 460                         if (acl && (sco = acl->link)) {
 461                                 sco->state = BT_CLOSED;
 462
 463                                 hci_proto_connect_cfm(sco, status);
 464                                 hci_conn_del(sco);
 465                         }
 466
 467                         hci_dev_unlock(hdev);
 468                 }
 469                 break;
 470
 471         case OCF_INQUIRY:
 472                 if (status) {
 473                         BT_DBG("%s Inquiry error: status 0x%x", hdev->name, status);
 474                         hci_req_complete(hdev, status);
 475                 } else {
 476                         set_bit(HCI_INQUIRY, &hdev->flags);
 477                 }
 478                 break;
 479
 480         default:
 481                 BT_DBG("%s Command status: ogf LINK_CTL ocf %x status %d",
 482                         hdev->name, ocf, status);
 483                 break;
 484         }
 485 }
 486
 487 /* Command Status OGF LINK_POLICY */
 488 static void hci_cs_link_policy(struct hci_dev *hdev, __u16 ocf, __u8 status)
 489 {
 490         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 491
 492         switch (ocf) {
 493         case OCF_SNIFF_MODE:
 494                 if (status) {
 495                         struct hci_conn *conn;
 496                         struct hci_cp_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_SNIFF_MODE);
 497
 498                         if (!cp)
 499                                 break;
 500
 501                         hci_dev_lock(hdev);
 502
 503                         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 504                         if (conn) {
 505                                 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 506                         }
 507
 508                         hci_dev_unlock(hdev);
 509                 }
 510                 break;
 511
 512         case OCF_EXIT_SNIFF_MODE:
 513                 if (status) {
 514                         struct hci_conn *conn;
 515                         struct hci_cp_exit_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_EXIT_SNIFF_MODE);
 516
 517                         if (!cp)
 518                                 break;
 519
 520                         hci_dev_lock(hdev);
 521
 522                         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
 523                         if (conn) {
 524                                 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 525                         }
 526
 527                         hci_dev_unlock(hdev);
 528                 }
 529                 break;
 530
 531         default:
 532                 BT_DBG("%s Command status: ogf LINK_POLICY ocf %x", hdev->name, ocf);
 533                 break;
 534         }
 535 }
 536
 537 /* Command Status OGF HOST_CTL */
 538 static void hci_cs_host_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
 539 {
 540         BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 541
 542         switch (ocf) {
 543         default:
 544                 BT_DBG("%s Command status: ogf HOST_CTL ocf %x", hdev->name, ocf);
 545                 break;
 546         }
 547 }
 548
 549 /* Command Status OGF INFO_PARAM  */
 550 static void hci_cs_info_param(struct hci_dev *hdev, __u16 ocf, __u8 status)
 551 {
 552         BT_DBG("%s: hci_cs_info_param: ocf 0x%x", hdev->name, ocf);
 553
 554         switch (ocf) {
 555         default:
 556                 BT_DBG("%s Command status: ogf INFO_PARAM ocf %x", hdev->name, ocf);
 557                 break;
 558         }
 559 }
 560
 561 /* Inquiry Complete */
 562 static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 563 {
 564         __u8 status = *((__u8 *) skb->data);
 565
 566         BT_DBG("%s status %d", hdev->name, status);
 567
 568         clear_bit(HCI_INQUIRY, &hdev->flags);
 569         hci_req_complete(hdev, status);
 570 }
 571
 572 /* Inquiry Result */
 573 static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
 574 {
 575         struct inquiry_data data;
 576         struct inquiry_info *info = (struct inquiry_info *) (skb->data + 1);
 577         int num_rsp = *((__u8 *) skb->data);
 578
 579         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 580
 581         if (!num_rsp)
 582                 return;
 583
 584         hci_dev_lock(hdev);
 585
 586         for (; num_rsp; num_rsp--) {
 587                 bacpy(&data.bdaddr, &info->bdaddr);
 588                 data.pscan_rep_mode     = info->pscan_rep_mode;
 589                 data.pscan_period_mode  = info->pscan_period_mode;
 590                 data.pscan_mode         = info->pscan_mode;
 591                 memcpy(data.dev_class, info->dev_class, 3);
 592                 data.clock_offset       = info->clock_offset;
 593                 data.rssi               = 0x00;
 594                 info++;
 595                 hci_inquiry_cache_update(hdev, &data);
 596         }
 597
 598         hci_dev_unlock(hdev);
 599 }
 600
 601 /* Inquiry Result With RSSI */
 602 static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
 603 {
 604         struct inquiry_data data;
 605         int num_rsp = *((__u8 *) skb->data);
 606
 607         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 608
 609         if (!num_rsp)
 610                 return;
 611
 612         hci_dev_lock(hdev);
 613
 614         if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
 615                 struct inquiry_info_with_rssi_and_pscan_mode *info =
 616                         (struct inquiry_info_with_rssi_and_pscan_mode *) (skb->data + 1);
 617
 618                 for (; num_rsp; num_rsp--) {
 619                         bacpy(&data.bdaddr, &info->bdaddr);
 620                         data.pscan_rep_mode     = info->pscan_rep_mode;
 621                         data.pscan_period_mode  = info->pscan_period_mode;
 622                         data.pscan_mode         = info->pscan_mode;
 623                         memcpy(data.dev_class, info->dev_class, 3);
 624                         data.clock_offset       = info->clock_offset;
 625                         data.rssi               = info->rssi;
 626                         info++;
 627                         hci_inquiry_cache_update(hdev, &data);
 628                 }
 629         } else {
 630                 struct inquiry_info_with_rssi *info =
 631                         (struct inquiry_info_with_rssi *) (skb->data + 1);
 632
 633                 for (; num_rsp; num_rsp--) {
 634                         bacpy(&data.bdaddr, &info->bdaddr);
 635                         data.pscan_rep_mode     = info->pscan_rep_mode;
 636                         data.pscan_period_mode  = info->pscan_period_mode;
 637                         data.pscan_mode         = 0x00;
 638                         memcpy(data.dev_class, info->dev_class, 3);
 639                         data.clock_offset       = info->clock_offset;
 640                         data.rssi               = info->rssi;
 641                         info++;
 642                         hci_inquiry_cache_update(hdev, &data);
 643                 }
 644         }
 645
 646         hci_dev_unlock(hdev);
 647 }
 648
 649 /* Extended Inquiry Result */
 650 static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
 651 {
 652         struct inquiry_data data;
 653         struct extended_inquiry_info *info = (struct extended_inquiry_info *) (skb->data + 1);
 654         int num_rsp = *((__u8 *) skb->data);
 655
 656         BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 657
 658         if (!num_rsp)
 659                 return;
 660
 661         hci_dev_lock(hdev);
 662
 663         for (; num_rsp; num_rsp--) {
 664                 bacpy(&data.bdaddr, &info->bdaddr);
 665                 data.pscan_rep_mode     = info->pscan_rep_mode;
 666                 data.pscan_period_mode  = info->pscan_period_mode;
 667                 data.pscan_mode         = 0x00;
 668                 memcpy(data.dev_class, info->dev_class, 3);
 669                 data.clock_offset       = info->clock_offset;
 670                 data.rssi               = info->rssi;
 671                 info++;
 672                 hci_inquiry_cache_update(hdev, &data);
 673         }
 674
 675         hci_dev_unlock(hdev);
 676 }
 677
 678 /* Connect Request */
 679 static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 680 {
 681         struct hci_ev_conn_request *ev = (struct hci_ev_conn_request *) skb->data;
 682         int mask = hdev->link_mode;
 683
 684         BT_DBG("%s Connection request: %s type 0x%x", hdev->name,
 685                         batostr(&ev->bdaddr), ev->link_type);
 686
 687         mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
 688
 689         if (mask & HCI_LM_ACCEPT) {
 690                 /* Connection accepted */
 691                 struct hci_conn *conn;
 692                 struct hci_cp_accept_conn_req cp;
 693
 694                 hci_dev_lock(hdev);
 695                 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 696                 if (!conn) {
 697                         if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
 698                                 BT_ERR("No memmory for new connection");
 699                                 hci_dev_unlock(hdev);
 700                                 return;
 701                         }
 702                 }
 703                 memcpy(conn->dev_class, ev->dev_class, 3);
 704                 conn->state = BT_CONNECT;
 705                 hci_dev_unlock(hdev);
 706
 707                 bacpy(&cp.bdaddr, &ev->bdaddr);
 708
 709                 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
 710                         cp.role = 0x00; /* Become master */
 711                 else
 712                         cp.role = 0x01; /* Remain slave */
 713
 714                 hci_send_cmd(hdev, OGF_LINK_CTL,
 715                                 OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
 716         } else {
 717                 /* Connection rejected */
 718                 struct hci_cp_reject_conn_req cp;
 719
 720                 bacpy(&cp.bdaddr, &ev->bdaddr);
 721                 cp.reason = 0x0f;
 722                 hci_send_cmd(hdev, OGF_LINK_CTL,
 723                                 OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
 724         }
 725 }
 726
 727 /* Connect Complete */
 728 static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 729 {
 730         struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
 731         struct hci_conn *conn;
 732
 733         BT_DBG("%s", hdev->name);
 734
 735         hci_dev_lock(hdev);
 736
 737         conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 738         if (!conn) {
 739                 hci_dev_unlock(hdev);
 740                 return;
 741         }
 742
 743         if (!ev->status) {
 744                 conn->handle = __le16_to_cpu(ev->handle);
 745                 conn->state  = BT_CONNECTED;
 746
 747                 if (test_bit(HCI_AUTH, &hdev->flags))
 748                         conn->link_mode |= HCI_LM_AUTH;
 749
 750                 if (test_bit(HCI_ENCRYPT, &hdev->flags))
 751                         conn->link_mode |= HCI_LM_ENCRYPT;
 752
 753                 /* Get remote features */
 754                 if (conn->type == ACL_LINK) {
 755                         struct hci_cp_read_remote_features cp;
 756                         cp.handle = ev->handle;
 757                         hci_send_cmd(hdev, OGF_LINK_CTL,
 758                                 OCF_READ_REMOTE_FEATURES, sizeof(cp), &cp);
 759                 }
 760
 761                 /* Set link policy */
 762                 if (conn->type == ACL_LINK && hdev->link_policy) {
 763                         struct hci_cp_write_link_policy cp;
 764                         cp.handle = ev->handle;
 765                         cp.policy = __cpu_to_le16(hdev->link_policy);
 766                         hci_send_cmd(hdev, OGF_LINK_POLICY,
 767                                 OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
 768                 }
 769
 770                 /* Set packet type for incoming connection */
 771                 if (!conn->out) {
 772                         struct hci_cp_change_conn_ptype cp;
 773                         cp.handle = ev->handle;
 774                         cp.pkt_type = (conn->type == ACL_LINK) ?
 775                                 __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
 776                                 __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
 777
 778                         hci_send_cmd(hdev, OGF_LINK_CTL,
 779                                 OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
 780                 }
 781         } else
 782                 conn->state = BT_CLOSED;
 783
 784         if (conn->type == ACL_LINK) {
 785                 struct hci_conn *sco = conn->link;
 786                 if (sco) {
 787                         if (!ev->status)
 788                                 hci_add_sco(sco, conn->handle);
 789                         else {
 790                                 hci_proto_connect_cfm(sco, ev->status);
 791                                 hci_conn_del(sco);
 792                         }
 793                 }
 794         }
 795
 796         hci_proto_connect_cfm(conn, ev->status);
 797         if (ev->status)
 798                 hci_conn_del(conn);
 799
 800         hci_dev_unlock(hdev);
 801 }
 802
 803 /* Disconnect Complete */
 804 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 805 {
 806         struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
 807         struct hci_conn *conn;
 808
 809         BT_DBG("%s status %d", hdev->name, ev->status);
 810
 811         if (ev->status)
 812                 return;
 813
 814         hci_dev_lock(hdev);
 815
 816         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 817         if (conn) {
 818                 conn->state = BT_CLOSED;
 819                 hci_proto_disconn_ind(conn, ev->reason);
 820                 hci_conn_del(conn);
 821         }
 822
 823         hci_dev_unlock(hdev);
 824 }
 825
 826 /* Number of completed packets */
 827 static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
 828 {
 829         struct hci_ev_num_comp_pkts *ev = (struct hci_ev_num_comp_pkts *) skb->data;
 830         __le16 *ptr;
 831         int i;
 832
 833         skb_pull(skb, sizeof(*ev));
 834
 835         BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
 836
 837         if (skb->len < ev->num_hndl * 4) {
 838                 BT_DBG("%s bad parameters", hdev->name);
 839                 return;
 840         }
 841
 842         tasklet_disable(&hdev->tx_task);
 843
 844         for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
 845                 struct hci_conn *conn;
 846                 __u16  handle, count;
 847
 848                 handle = __le16_to_cpu(get_unaligned(ptr++));
 849                 count  = __le16_to_cpu(get_unaligned(ptr++));
 850
 851                 conn = hci_conn_hash_lookup_handle(hdev, handle);
 852                 if (conn) {
 853                         conn->sent -= count;
 854
 855                         if (conn->type == SCO_LINK) {
 856                                 if ((hdev->sco_cnt += count) > hdev->sco_pkts)
 857                                         hdev->sco_cnt = hdev->sco_pkts;
 858                         } else {
 859                                 if ((hdev->acl_cnt += count) > hdev->acl_pkts)
 860                                         hdev->acl_cnt = hdev->acl_pkts;
 861                         }
 862                 }
 863         }
 864         hci_sched_tx(hdev);
 865
 866         tasklet_enable(&hdev->tx_task);
 867 }
 868
 869 /* Role Change */
 870 static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 871 {
 872         struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
 873         struct hci_conn *conn;
 874
 875         BT_DBG("%s status %d", hdev->name, ev->status);
 876
 877         hci_dev_lock(hdev);
 878
 879         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
 880         if (conn) {
 881                 if (!ev->status) {
 882                         if (ev->role)
 883                                 conn->link_mode &= ~HCI_LM_MASTER;
 884                         else
 885                                 conn->link_mode |= HCI_LM_MASTER;
 886                 }
 887
 888                 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
 889
 890                 hci_role_switch_cfm(conn, ev->status, ev->role);
 891         }
 892
 893         hci_dev_unlock(hdev);
 894 }
 895
 896 /* Mode Change */
 897 static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 898 {
 899         struct hci_ev_mode_change *ev = (struct hci_ev_mode_change *) skb->data;
 900         struct hci_conn *conn;
 901
 902         BT_DBG("%s status %d", hdev->name, ev->status);
 903
 904         hci_dev_lock(hdev);
 905
 906         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 907         if (conn) {
 908                 conn->mode = ev->mode;
 909                 conn->interval = __le16_to_cpu(ev->interval);
 910
 911                 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
 912                         if (conn->mode == HCI_CM_ACTIVE)
 913                                 conn->power_save = 1;
 914                         else
 915                                 conn->power_save = 0;
 916                 }
 917         }
 918
 919         hci_dev_unlock(hdev);
 920 }
 921
 922 /* Authentication Complete */
 923 static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 924 {
 925         struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
 926         struct hci_conn *conn;
 927
 928         BT_DBG("%s status %d", hdev->name, ev->status);
 929
 930         hci_dev_lock(hdev);
 931
 932         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 933         if (conn) {
 934                 if (!ev->status)
 935                         conn->link_mode |= HCI_LM_AUTH;
 936
 937                 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
 938
 939                 hci_auth_cfm(conn, ev->status);
 940
 941                 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
 942                         if (!ev->status) {
 943                                 struct hci_cp_set_conn_encrypt cp;
 944                                 cp.handle  = __cpu_to_le16(conn->handle);
 945                                 cp.encrypt = 1;
 946                                 hci_send_cmd(conn->hdev, OGF_LINK_CTL,
 947                                         OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
 948                         } else {
 949                                 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
 950                                 hci_encrypt_cfm(conn, ev->status, 0x00);
 951                         }
 952                 }
 953         }
 954
 955         hci_dev_unlock(hdev);
 956 }
 957
 958 /* Encryption Change */
 959 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 960 {
 961         struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
 962         struct hci_conn *conn;
 963
 964         BT_DBG("%s status %d", hdev->name, ev->status);
 965
 966         hci_dev_lock(hdev);
 967
 968         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 969         if (conn) {
 970                 if (!ev->status) {
 971                         if (ev->encrypt)
 972                                 conn->link_mode |= HCI_LM_ENCRYPT;
 973                         else
 974                                 conn->link_mode &= ~HCI_LM_ENCRYPT;
 975                 }
 976
 977                 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
 978
 979                 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
 980         }
 981
 982         hci_dev_unlock(hdev);
 983 }
 984
 985 /* Change Connection Link Key Complete */
 986 static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 987 {
 988         struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
 989         struct hci_conn *conn;
 990
 991         BT_DBG("%s status %d", hdev->name, ev->status);
 992
 993         hci_dev_lock(hdev);
 994
 995         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 996         if (conn) {
 997                 if (!ev->status)
 998                         conn->link_mode |= HCI_LM_SECURE;
 999
1000                 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1001
1002                 hci_key_change_cfm(conn, ev->status);
1003         }
1004
1005         hci_dev_unlock(hdev);
1006 }
1007
1008 /* Pin Code Request*/
1009 static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1010 {
1011 }
1012
1013 /* Link Key Request */
1014 static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1015 {
1016 }
1017
1018 /* Link Key Notification */
1019 static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
1020 {
1021 }
1022
1023 /* Remote Features */
1024 static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1025 {
1026         struct hci_ev_remote_features *ev = (struct hci_ev_remote_features *) skb->data;
1027         struct hci_conn *conn;
1028
1029         BT_DBG("%s status %d", hdev->name, ev->status);
1030
1031         hci_dev_lock(hdev);
1032
1033         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1034         if (conn && !ev->status) {
1035                 memcpy(conn->features, ev->features, sizeof(conn->features));
1036         }
1037
1038         hci_dev_unlock(hdev);
1039 }
1040
1041 /* Clock Offset */
1042 static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1043 {
1044         struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
1045         struct hci_conn *conn;
1046
1047         BT_DBG("%s status %d", hdev->name, ev->status);
1048
1049         hci_dev_lock(hdev);
1050
1051         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1052         if (conn && !ev->status) {
1053                 struct inquiry_entry *ie;
1054
1055                 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
1056                         ie->data.clock_offset = ev->clock_offset;
1057                         ie->timestamp = jiffies;
1058                 }
1059         }
1060
1061         hci_dev_unlock(hdev);
1062 }
1063
1064 /* Page Scan Repetition Mode */
1065 static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
1066 {
1067         struct hci_ev_pscan_rep_mode *ev = (struct hci_ev_pscan_rep_mode *) skb->data;
1068         struct inquiry_entry *ie;
1069
1070         BT_DBG("%s", hdev->name);
1071
1072         hci_dev_lock(hdev);
1073
1074         if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
1075                 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
1076                 ie->timestamp = jiffies;
1077         }
1078
1079         hci_dev_unlock(hdev);
1080 }
1081
1082 /* Sniff Subrate */
1083 static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
1084 {
1085         struct hci_ev_sniff_subrate *ev = (struct hci_ev_sniff_subrate *) skb->data;
1086         struct hci_conn *conn;
1087
1088         BT_DBG("%s status %d", hdev->name, ev->status);
1089
1090         hci_dev_lock(hdev);
1091
1092         conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1093         if (conn) {
1094         }
1095
1096         hci_dev_unlock(hdev);
1097 }
1098
1099 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
1100 {
1101         struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
1102         struct hci_ev_cmd_complete *ec;
1103         struct hci_ev_cmd_status *cs;
1104         u16 opcode, ocf, ogf;
1105
1106         skb_pull(skb, HCI_EVENT_HDR_SIZE);
1107
1108         BT_DBG("%s evt 0x%x", hdev->name, hdr->evt);
1109
1110         switch (hdr->evt) {
1111         case HCI_EV_NUM_COMP_PKTS:
1112                 hci_num_comp_pkts_evt(hdev, skb);
1113                 break;
1114
1115         case HCI_EV_INQUIRY_COMPLETE:
1116                 hci_inquiry_complete_evt(hdev, skb);
1117                 break;
1118
1119         case HCI_EV_INQUIRY_RESULT:
1120                 hci_inquiry_result_evt(hdev, skb);
1121                 break;
1122
1123         case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
1124                 hci_inquiry_result_with_rssi_evt(hdev, skb);
1125                 break;
1126
1127         case HCI_EV_EXTENDED_INQUIRY_RESULT:
1128                 hci_extended_inquiry_result_evt(hdev, skb);
1129                 break;
1130
1131         case HCI_EV_CONN_REQUEST:
1132                 hci_conn_request_evt(hdev, skb);
1133                 break;
1134
1135         case HCI_EV_CONN_COMPLETE:
1136                 hci_conn_complete_evt(hdev, skb);
1137                 break;
1138
1139         case HCI_EV_DISCONN_COMPLETE:
1140                 hci_disconn_complete_evt(hdev, skb);
1141                 break;
1142
1143         case HCI_EV_ROLE_CHANGE:
1144                 hci_role_change_evt(hdev, skb);
1145                 break;
1146
1147         case HCI_EV_MODE_CHANGE:
1148                 hci_mode_change_evt(hdev, skb);
1149                 break;
1150
1151         case HCI_EV_AUTH_COMPLETE:
1152                 hci_auth_complete_evt(hdev, skb);
1153                 break;
1154
1155         case HCI_EV_ENCRYPT_CHANGE:
1156                 hci_encrypt_change_evt(hdev, skb);
1157                 break;
1158
1159         case HCI_EV_CHANGE_CONN_LINK_KEY_COMPLETE:
1160                 hci_change_conn_link_key_complete_evt(hdev, skb);
1161                 break;
1162
1163         case HCI_EV_PIN_CODE_REQ:
1164                 hci_pin_code_request_evt(hdev, skb);
1165                 break;
1166
1167         case HCI_EV_LINK_KEY_REQ:
1168                 hci_link_key_request_evt(hdev, skb);
1169                 break;
1170
1171         case HCI_EV_LINK_KEY_NOTIFY:
1172                 hci_link_key_notify_evt(hdev, skb);
1173                 break;
1174
1175         case HCI_EV_REMOTE_FEATURES:
1176                 hci_remote_features_evt(hdev, skb);
1177                 break;
1178
1179         case HCI_EV_CLOCK_OFFSET:
1180                 hci_clock_offset_evt(hdev, skb);
1181                 break;
1182
1183         case HCI_EV_PSCAN_REP_MODE:
1184                 hci_pscan_rep_mode_evt(hdev, skb);
1185                 break;
1186
1187         case HCI_EV_SNIFF_SUBRATE:
1188                 hci_sniff_subrate_evt(hdev, skb);
1189                 break;
1190
1191         case HCI_EV_CMD_STATUS:
1192                 cs = (struct hci_ev_cmd_status *) skb->data;
1193                 skb_pull(skb, sizeof(cs));
1194
1195                 opcode = __le16_to_cpu(cs->opcode);
1196                 ogf = hci_opcode_ogf(opcode);
1197                 ocf = hci_opcode_ocf(opcode);
1198
1199                 switch (ogf) {
1200                 case OGF_INFO_PARAM:
1201                         hci_cs_info_param(hdev, ocf, cs->status);
1202                         break;
1203
1204                 case OGF_HOST_CTL:
1205                         hci_cs_host_ctl(hdev, ocf, cs->status);
1206                         break;
1207
1208                 case OGF_LINK_CTL:
1209                         hci_cs_link_ctl(hdev, ocf, cs->status);
1210                         break;
1211
1212                 case OGF_LINK_POLICY:
1213                         hci_cs_link_policy(hdev, ocf, cs->status);
1214                         break;
1215
1216                 default:
1217                         BT_DBG("%s Command Status OGF %x", hdev->name, ogf);
1218                         break;
1219                 }
1220
1221                 if (cs->ncmd) {
1222                         atomic_set(&hdev->cmd_cnt, 1);
1223                         if (!skb_queue_empty(&hdev->cmd_q))
1224                                 hci_sched_cmd(hdev);
1225                 }
1226                 break;
1227
1228         case HCI_EV_CMD_COMPLETE:
1229                 ec = (struct hci_ev_cmd_complete *) skb->data;
1230                 skb_pull(skb, sizeof(*ec));
1231
1232                 opcode = __le16_to_cpu(ec->opcode);
1233                 ogf = hci_opcode_ogf(opcode);
1234                 ocf = hci_opcode_ocf(opcode);
1235
1236                 switch (ogf) {
1237                 case OGF_INFO_PARAM:
1238                         hci_cc_info_param(hdev, ocf, skb);
1239                         break;
1240
1241                 case OGF_HOST_CTL:
1242                         hci_cc_host_ctl(hdev, ocf, skb);
1243                         break;
1244
1245                 case OGF_LINK_CTL:
1246                         hci_cc_link_ctl(hdev, ocf, skb);
1247                         break;
1248
1249                 case OGF_LINK_POLICY:
1250                         hci_cc_link_policy(hdev, ocf, skb);
1251                         break;
1252
1253                 default:
1254                         BT_DBG("%s Command Completed OGF %x", hdev->name, ogf);
1255                         break;
1256                 }
1257
1258                 if (ec->ncmd) {
1259                         atomic_set(&hdev->cmd_cnt, 1);
1260                         if (!skb_queue_empty(&hdev->cmd_q))
1261                                 hci_sched_cmd(hdev);
1262                 }
1263                 break;
1264         }
1265
1266         kfree_skb(skb);
1267         hdev->stat.evt_rx++;
1268 }
1269
1270 /* Generate internal stack event */
1271 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
1272 {
1273         struct hci_event_hdr *hdr;
1274         struct hci_ev_stack_internal *ev;
1275         struct sk_buff *skb;
1276
1277         skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
1278         if (!skb)
1279                 return;
1280
1281         hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
1282         hdr->evt  = HCI_EV_STACK_INTERNAL;
1283         hdr->plen = sizeof(*ev) + dlen;
1284
1285         ev  = (void *) skb_put(skb, sizeof(*ev) + dlen);
1286         ev->type = type;
1287         memcpy(ev->data, data, dlen);
1288
1289         bt_cb(skb)->incoming = 1;
1290         __net_timestamp(skb);
1291
1292         bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1293         skb->dev = (void *) hdev;
1294         hci_send_to_sock(hdev, skb);
1295         kfree_skb(skb);
1296 }