1 /** 2 * Marvell Bluetooth driver 3 * 4 * Copyright (C) 2009, Marvell International Ltd. 5 * 6 * This software file (the "File") is distributed by Marvell International 7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * 15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 18 * this warranty disclaimer. 19 **/ 20 21 #include <linux/module.h> 22 #include <linux/of.h> 23 #include <net/bluetooth/bluetooth.h> 24 #include <net/bluetooth/hci_core.h> 25 #include <linux/mmc/sdio_func.h> 26 27 #include "btmrvl_drv.h" 28 #include "btmrvl_sdio.h" 29 30 #define VERSION "1.0" 31 32 /* 33 * This function is called by interface specific interrupt handler. 34 * It updates Power Save & Host Sleep states, and wakes up the main 35 * thread. 36 */ 37 void btmrvl_interrupt(struct btmrvl_private *priv) 38 { 39 priv->adapter->ps_state = PS_AWAKE; 40 41 priv->adapter->wakeup_tries = 0; 42 43 priv->adapter->int_count++; 44 45 if (priv->adapter->hs_state == HS_ACTIVATED) { 46 BT_DBG("BT: HS DEACTIVATED in ISR!"); 47 priv->adapter->hs_state = HS_DEACTIVATED; 48 } 49 50 wake_up_interruptible(&priv->main_thread.wait_q); 51 } 52 EXPORT_SYMBOL_GPL(btmrvl_interrupt); 53 54 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) 55 { 56 struct hci_event_hdr *hdr = (void *) skb->data; 57 58 if (hdr->evt == HCI_EV_CMD_COMPLETE) { 59 struct hci_ev_cmd_complete *ec; 60 u16 opcode; 61 62 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); 63 opcode = __le16_to_cpu(ec->opcode); 64 65 if (priv->btmrvl_dev.sendcmdflag) { 66 priv->btmrvl_dev.sendcmdflag = false; 67 priv->adapter->cmd_complete = true; 68 wake_up_interruptible(&priv->adapter->cmd_wait_q); 69 70 if (hci_opcode_ogf(opcode) == 0x3F) { 71 BT_DBG("vendor event skipped: opcode=%#4.4x", 72 opcode); 73 kfree_skb(skb); 74 return false; 75 } 76 } 77 } 78 79 return true; 80 } 81 EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); 82 83 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) 84 { 85 struct btmrvl_adapter *adapter = priv->adapter; 86 struct btmrvl_event *event; 87 int ret = 0; 88 89 event = (struct btmrvl_event *) skb->data; 90 if (event->ec != 0xff) { 91 BT_DBG("Not Marvell Event=%x", event->ec); 92 ret = -EINVAL; 93 goto exit; 94 } 95 96 switch (event->data[0]) { 97 case BT_EVENT_AUTO_SLEEP_MODE: 98 if (!event->data[2]) { 99 if (event->data[1] == BT_PS_ENABLE) 100 adapter->psmode = 1; 101 else 102 adapter->psmode = 0; 103 BT_DBG("PS Mode:%s", 104 (adapter->psmode) ? "Enable" : "Disable"); 105 } else { 106 BT_DBG("PS Mode command failed"); 107 } 108 break; 109 110 case BT_EVENT_HOST_SLEEP_CONFIG: 111 if (!event->data[3]) 112 BT_DBG("gpio=%x, gap=%x", event->data[1], 113 event->data[2]); 114 else 115 BT_DBG("HSCFG command failed"); 116 break; 117 118 case BT_EVENT_HOST_SLEEP_ENABLE: 119 if (!event->data[1]) { 120 adapter->hs_state = HS_ACTIVATED; 121 if (adapter->psmode) 122 adapter->ps_state = PS_SLEEP; 123 wake_up_interruptible(&adapter->event_hs_wait_q); 124 BT_DBG("HS ACTIVATED!"); 125 } else { 126 BT_DBG("HS Enable failed"); 127 } 128 break; 129 130 case BT_EVENT_MODULE_CFG_REQ: 131 if (priv->btmrvl_dev.sendcmdflag && 132 event->data[1] == MODULE_BRINGUP_REQ) { 133 BT_DBG("EVENT:%s", 134 ((event->data[2] == MODULE_BROUGHT_UP) || 135 (event->data[2] == MODULE_ALREADY_UP)) ? 136 "Bring-up succeed" : "Bring-up failed"); 137 138 if (event->length > 3 && event->data[3]) 139 priv->btmrvl_dev.dev_type = HCI_AMP; 140 else 141 priv->btmrvl_dev.dev_type = HCI_BREDR; 142 143 BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); 144 } else if (priv->btmrvl_dev.sendcmdflag && 145 event->data[1] == MODULE_SHUTDOWN_REQ) { 146 BT_DBG("EVENT:%s", (event->data[2]) ? 147 "Shutdown failed" : "Shutdown succeed"); 148 } else { 149 BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); 150 ret = -EINVAL; 151 } 152 break; 153 154 case BT_EVENT_POWER_STATE: 155 if (event->data[1] == BT_PS_SLEEP) 156 adapter->ps_state = PS_SLEEP; 157 BT_DBG("EVENT:%s", 158 (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); 159 break; 160 161 default: 162 BT_DBG("Unknown Event=%d", event->data[0]); 163 ret = -EINVAL; 164 break; 165 } 166 167 exit: 168 if (!ret) 169 kfree_skb(skb); 170 171 return ret; 172 } 173 EXPORT_SYMBOL_GPL(btmrvl_process_event); 174 175 static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode, 176 const void *param, u8 len) 177 { 178 struct sk_buff *skb; 179 struct hci_command_hdr *hdr; 180 181 if (priv->surprise_removed) { 182 BT_ERR("Card is removed"); 183 return -EFAULT; 184 } 185 186 skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC); 187 if (skb == NULL) { 188 BT_ERR("No free skb"); 189 return -ENOMEM; 190 } 191 192 hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE); 193 hdr->opcode = cpu_to_le16(opcode); 194 hdr->plen = len; 195 196 if (len) 197 memcpy(skb_put(skb, len), param, len); 198 199 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; 200 201 skb_queue_head(&priv->adapter->tx_queue, skb); 202 203 priv->btmrvl_dev.sendcmdflag = true; 204 205 priv->adapter->cmd_complete = false; 206 207 wake_up_interruptible(&priv->main_thread.wait_q); 208 209 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, 210 priv->adapter->cmd_complete || 211 priv->surprise_removed, 212 WAIT_UNTIL_CMD_RESP)) 213 return -ETIMEDOUT; 214 215 if (priv->surprise_removed) 216 return -EFAULT; 217 218 return 0; 219 } 220 221 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd) 222 { 223 int ret; 224 225 ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); 226 if (ret) 227 BT_ERR("module_cfg_cmd(%x) failed", subcmd); 228 229 return ret; 230 } 231 EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); 232 233 int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd) 234 { 235 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 236 int ret; 237 238 if (!card->support_pscan_win_report) 239 return 0; 240 241 ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE, 242 &subcmd, 1); 243 if (ret) 244 BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret); 245 246 return ret; 247 } 248 EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting); 249 250 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) 251 { 252 int ret; 253 u8 param[2]; 254 255 param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; 256 param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); 257 258 BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", 259 param[0], param[1]); 260 261 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); 262 if (ret) 263 BT_ERR("HSCFG command failed"); 264 265 return ret; 266 } 267 EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); 268 269 int btmrvl_enable_ps(struct btmrvl_private *priv) 270 { 271 int ret; 272 u8 param; 273 274 if (priv->btmrvl_dev.psmode) 275 param = BT_PS_ENABLE; 276 else 277 param = BT_PS_DISABLE; 278 279 ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); 280 if (ret) 281 BT_ERR("PSMODE command failed"); 282 283 return 0; 284 } 285 EXPORT_SYMBOL_GPL(btmrvl_enable_ps); 286 287 int btmrvl_enable_hs(struct btmrvl_private *priv) 288 { 289 struct btmrvl_adapter *adapter = priv->adapter; 290 int ret; 291 292 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); 293 if (ret) { 294 BT_ERR("Host sleep enable command failed"); 295 return ret; 296 } 297 298 ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q, 299 adapter->hs_state || 300 priv->surprise_removed, 301 WAIT_UNTIL_HS_STATE_CHANGED); 302 if (ret < 0 || priv->surprise_removed) { 303 BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d", 304 ret, adapter->hs_state, adapter->ps_state, 305 adapter->wakeup_tries); 306 } else if (!ret) { 307 BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state, 308 adapter->ps_state, adapter->wakeup_tries); 309 ret = -ETIMEDOUT; 310 } else { 311 BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state, 312 adapter->ps_state, adapter->wakeup_tries); 313 ret = 0; 314 } 315 316 return ret; 317 } 318 EXPORT_SYMBOL_GPL(btmrvl_enable_hs); 319 320 int btmrvl_prepare_command(struct btmrvl_private *priv) 321 { 322 int ret = 0; 323 324 if (priv->btmrvl_dev.hscfgcmd) { 325 priv->btmrvl_dev.hscfgcmd = 0; 326 btmrvl_send_hscfg_cmd(priv); 327 } 328 329 if (priv->btmrvl_dev.pscmd) { 330 priv->btmrvl_dev.pscmd = 0; 331 btmrvl_enable_ps(priv); 332 } 333 334 if (priv->btmrvl_dev.hscmd) { 335 priv->btmrvl_dev.hscmd = 0; 336 337 if (priv->btmrvl_dev.hsmode) { 338 ret = btmrvl_enable_hs(priv); 339 } else { 340 ret = priv->hw_wakeup_firmware(priv); 341 priv->adapter->hs_state = HS_DEACTIVATED; 342 BT_DBG("BT: HS DEACTIVATED due to host activity!"); 343 } 344 } 345 346 return ret; 347 } 348 349 void btmrvl_firmware_dump(struct btmrvl_private *priv) 350 { 351 if (priv->firmware_dump) 352 priv->firmware_dump(priv); 353 } 354 355 static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) 356 { 357 int ret = 0; 358 359 if (!skb || !skb->data) 360 return -EINVAL; 361 362 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { 363 BT_ERR("Tx Error: Bad skb length %d : %d", 364 skb->len, BTM_UPLD_SIZE); 365 return -EINVAL; 366 } 367 368 if (skb_headroom(skb) < BTM_HEADER_LEN) { 369 struct sk_buff *tmp = skb; 370 371 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); 372 if (!skb) { 373 BT_ERR("Tx Error: realloc_headroom failed %d", 374 BTM_HEADER_LEN); 375 skb = tmp; 376 return -EINVAL; 377 } 378 379 kfree_skb(tmp); 380 } 381 382 skb_push(skb, BTM_HEADER_LEN); 383 384 /* header type: byte[3] 385 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor 386 * header length: byte[2][1][0] 387 */ 388 389 skb->data[0] = (skb->len & 0x0000ff); 390 skb->data[1] = (skb->len & 0x00ff00) >> 8; 391 skb->data[2] = (skb->len & 0xff0000) >> 16; 392 skb->data[3] = bt_cb(skb)->pkt_type; 393 394 if (priv->hw_host_to_card) 395 ret = priv->hw_host_to_card(priv, skb->data, skb->len); 396 397 return ret; 398 } 399 400 static void btmrvl_init_adapter(struct btmrvl_private *priv) 401 { 402 int buf_size; 403 404 skb_queue_head_init(&priv->adapter->tx_queue); 405 406 priv->adapter->ps_state = PS_AWAKE; 407 408 buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN); 409 priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL); 410 if (!priv->adapter->hw_regs_buf) { 411 priv->adapter->hw_regs = NULL; 412 BT_ERR("Unable to allocate buffer for hw_regs."); 413 } else { 414 priv->adapter->hw_regs = 415 (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf, 416 BTSDIO_DMA_ALIGN); 417 BT_DBG("hw_regs_buf=%p hw_regs=%p", 418 priv->adapter->hw_regs_buf, priv->adapter->hw_regs); 419 } 420 421 init_waitqueue_head(&priv->adapter->cmd_wait_q); 422 init_waitqueue_head(&priv->adapter->event_hs_wait_q); 423 } 424 425 static void btmrvl_free_adapter(struct btmrvl_private *priv) 426 { 427 skb_queue_purge(&priv->adapter->tx_queue); 428 429 kfree(priv->adapter->hw_regs_buf); 430 kfree(priv->adapter); 431 432 priv->adapter = NULL; 433 } 434 435 static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 436 { 437 struct btmrvl_private *priv = hci_get_drvdata(hdev); 438 439 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); 440 441 if (!test_bit(HCI_RUNNING, &hdev->flags)) { 442 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); 443 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, 444 skb->data, skb->len); 445 return -EBUSY; 446 } 447 448 switch (bt_cb(skb)->pkt_type) { 449 case HCI_COMMAND_PKT: 450 hdev->stat.cmd_tx++; 451 break; 452 453 case HCI_ACLDATA_PKT: 454 hdev->stat.acl_tx++; 455 break; 456 457 case HCI_SCODATA_PKT: 458 hdev->stat.sco_tx++; 459 break; 460 } 461 462 skb_queue_tail(&priv->adapter->tx_queue, skb); 463 464 wake_up_interruptible(&priv->main_thread.wait_q); 465 466 return 0; 467 } 468 469 static int btmrvl_flush(struct hci_dev *hdev) 470 { 471 struct btmrvl_private *priv = hci_get_drvdata(hdev); 472 473 skb_queue_purge(&priv->adapter->tx_queue); 474 475 return 0; 476 } 477 478 static int btmrvl_close(struct hci_dev *hdev) 479 { 480 struct btmrvl_private *priv = hci_get_drvdata(hdev); 481 482 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) 483 return 0; 484 485 skb_queue_purge(&priv->adapter->tx_queue); 486 487 return 0; 488 } 489 490 static int btmrvl_open(struct hci_dev *hdev) 491 { 492 set_bit(HCI_RUNNING, &hdev->flags); 493 494 return 0; 495 } 496 497 static int btmrvl_download_cal_data(struct btmrvl_private *priv, 498 u8 *data, int len) 499 { 500 int ret; 501 502 data[0] = 0x00; 503 data[1] = 0x00; 504 data[2] = 0x00; 505 data[3] = len; 506 507 print_hex_dump_bytes("Calibration data: ", 508 DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); 509 510 ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, 511 BT_CAL_HDR_LEN + len); 512 if (ret) 513 BT_ERR("Failed to download caibration data"); 514 515 return 0; 516 } 517 518 static int btmrvl_check_device_tree(struct btmrvl_private *priv) 519 { 520 struct device_node *dt_node; 521 u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; 522 int ret; 523 u32 val; 524 525 for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") { 526 ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val); 527 if (!ret) 528 priv->btmrvl_dev.gpio_gap = val; 529 530 ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data", 531 cal_data + BT_CAL_HDR_LEN, 532 BT_CAL_DATA_SIZE); 533 if (ret) 534 return ret; 535 536 BT_DBG("Use cal data from device tree"); 537 ret = btmrvl_download_cal_data(priv, cal_data, 538 BT_CAL_DATA_SIZE); 539 if (ret) { 540 BT_ERR("Fail to download calibrate data"); 541 return ret; 542 } 543 } 544 545 return 0; 546 } 547 548 static int btmrvl_setup(struct hci_dev *hdev) 549 { 550 struct btmrvl_private *priv = hci_get_drvdata(hdev); 551 int ret; 552 553 ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); 554 if (ret) 555 return ret; 556 557 priv->btmrvl_dev.gpio_gap = 0xffff; 558 559 btmrvl_check_device_tree(priv); 560 561 btmrvl_pscan_window_reporting(priv, 0x01); 562 563 priv->btmrvl_dev.psmode = 1; 564 btmrvl_enable_ps(priv); 565 566 btmrvl_send_hscfg_cmd(priv); 567 568 return 0; 569 } 570 571 static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 572 { 573 struct sk_buff *skb; 574 long ret; 575 u8 buf[8]; 576 577 buf[0] = MRVL_VENDOR_PKT; 578 buf[1] = sizeof(bdaddr_t); 579 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 580 581 skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf, 582 HCI_INIT_TIMEOUT); 583 if (IS_ERR(skb)) { 584 ret = PTR_ERR(skb); 585 BT_ERR("%s: changing btmrvl device address failed (%ld)", 586 hdev->name, ret); 587 return ret; 588 } 589 kfree_skb(skb); 590 591 return 0; 592 } 593 594 /* 595 * This function handles the event generated by firmware, rx data 596 * received from firmware, and tx data sent from kernel. 597 */ 598 static int btmrvl_service_main_thread(void *data) 599 { 600 struct btmrvl_thread *thread = data; 601 struct btmrvl_private *priv = thread->priv; 602 struct btmrvl_adapter *adapter = priv->adapter; 603 wait_queue_t wait; 604 struct sk_buff *skb; 605 ulong flags; 606 607 init_waitqueue_entry(&wait, current); 608 609 for (;;) { 610 add_wait_queue(&thread->wait_q, &wait); 611 612 set_current_state(TASK_INTERRUPTIBLE); 613 if (kthread_should_stop() || priv->surprise_removed) { 614 BT_DBG("main_thread: break from main thread"); 615 break; 616 } 617 618 if (adapter->wakeup_tries || 619 ((!adapter->int_count) && 620 (!priv->btmrvl_dev.tx_dnld_rdy || 621 skb_queue_empty(&adapter->tx_queue)))) { 622 BT_DBG("main_thread is sleeping..."); 623 schedule(); 624 } 625 626 set_current_state(TASK_RUNNING); 627 628 remove_wait_queue(&thread->wait_q, &wait); 629 630 BT_DBG("main_thread woke up"); 631 632 if (kthread_should_stop() || priv->surprise_removed) { 633 BT_DBG("main_thread: break from main thread"); 634 break; 635 } 636 637 spin_lock_irqsave(&priv->driver_lock, flags); 638 if (adapter->int_count) { 639 adapter->int_count = 0; 640 spin_unlock_irqrestore(&priv->driver_lock, flags); 641 priv->hw_process_int_status(priv); 642 } else if (adapter->ps_state == PS_SLEEP && 643 !skb_queue_empty(&adapter->tx_queue)) { 644 spin_unlock_irqrestore(&priv->driver_lock, flags); 645 adapter->wakeup_tries++; 646 priv->hw_wakeup_firmware(priv); 647 continue; 648 } else { 649 spin_unlock_irqrestore(&priv->driver_lock, flags); 650 } 651 652 if (adapter->ps_state == PS_SLEEP) 653 continue; 654 655 if (!priv->btmrvl_dev.tx_dnld_rdy) 656 continue; 657 658 skb = skb_dequeue(&adapter->tx_queue); 659 if (skb) { 660 if (btmrvl_tx_pkt(priv, skb)) 661 priv->btmrvl_dev.hcidev->stat.err_tx++; 662 else 663 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; 664 665 kfree_skb(skb); 666 } 667 } 668 669 return 0; 670 } 671 672 int btmrvl_register_hdev(struct btmrvl_private *priv) 673 { 674 struct hci_dev *hdev = NULL; 675 int ret; 676 677 hdev = hci_alloc_dev(); 678 if (!hdev) { 679 BT_ERR("Can not allocate HCI device"); 680 goto err_hdev; 681 } 682 683 priv->btmrvl_dev.hcidev = hdev; 684 hci_set_drvdata(hdev, priv); 685 686 hdev->bus = HCI_SDIO; 687 hdev->open = btmrvl_open; 688 hdev->close = btmrvl_close; 689 hdev->flush = btmrvl_flush; 690 hdev->send = btmrvl_send_frame; 691 hdev->setup = btmrvl_setup; 692 hdev->set_bdaddr = btmrvl_set_bdaddr; 693 694 hdev->dev_type = priv->btmrvl_dev.dev_type; 695 696 ret = hci_register_dev(hdev); 697 if (ret < 0) { 698 BT_ERR("Can not register HCI device"); 699 goto err_hci_register_dev; 700 } 701 702 #ifdef CONFIG_DEBUG_FS 703 btmrvl_debugfs_init(hdev); 704 #endif 705 706 return 0; 707 708 err_hci_register_dev: 709 hci_free_dev(hdev); 710 711 err_hdev: 712 /* Stop the thread servicing the interrupts */ 713 kthread_stop(priv->main_thread.task); 714 715 btmrvl_free_adapter(priv); 716 kfree(priv); 717 718 return -ENOMEM; 719 } 720 EXPORT_SYMBOL_GPL(btmrvl_register_hdev); 721 722 struct btmrvl_private *btmrvl_add_card(void *card) 723 { 724 struct btmrvl_private *priv; 725 726 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 727 if (!priv) { 728 BT_ERR("Can not allocate priv"); 729 goto err_priv; 730 } 731 732 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); 733 if (!priv->adapter) { 734 BT_ERR("Allocate buffer for btmrvl_adapter failed!"); 735 goto err_adapter; 736 } 737 738 btmrvl_init_adapter(priv); 739 740 BT_DBG("Starting kthread..."); 741 priv->main_thread.priv = priv; 742 spin_lock_init(&priv->driver_lock); 743 744 init_waitqueue_head(&priv->main_thread.wait_q); 745 priv->main_thread.task = kthread_run(btmrvl_service_main_thread, 746 &priv->main_thread, "btmrvl_main_service"); 747 if (IS_ERR(priv->main_thread.task)) 748 goto err_thread; 749 750 priv->btmrvl_dev.card = card; 751 priv->btmrvl_dev.tx_dnld_rdy = true; 752 753 return priv; 754 755 err_thread: 756 btmrvl_free_adapter(priv); 757 758 err_adapter: 759 kfree(priv); 760 761 err_priv: 762 return NULL; 763 } 764 EXPORT_SYMBOL_GPL(btmrvl_add_card); 765 766 int btmrvl_remove_card(struct btmrvl_private *priv) 767 { 768 struct hci_dev *hdev; 769 770 hdev = priv->btmrvl_dev.hcidev; 771 772 wake_up_interruptible(&priv->adapter->cmd_wait_q); 773 wake_up_interruptible(&priv->adapter->event_hs_wait_q); 774 775 kthread_stop(priv->main_thread.task); 776 777 #ifdef CONFIG_DEBUG_FS 778 btmrvl_debugfs_remove(hdev); 779 #endif 780 781 hci_unregister_dev(hdev); 782 783 hci_free_dev(hdev); 784 785 priv->btmrvl_dev.hcidev = NULL; 786 787 btmrvl_free_adapter(priv); 788 789 kfree(priv); 790 791 return 0; 792 } 793 EXPORT_SYMBOL_GPL(btmrvl_remove_card); 794 795 MODULE_AUTHOR("Marvell International Ltd."); 796 MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); 797 MODULE_VERSION(VERSION); 798 MODULE_LICENSE("GPL v2"); 799