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 */ 37void 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} 52EXPORT_SYMBOL_GPL(btmrvl_interrupt); 53 54bool 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} 81EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); 82 83int 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 167exit: 168 if (!ret) 169 kfree_skb(skb); 170 171 return ret; 172} 173EXPORT_SYMBOL_GPL(btmrvl_process_event); 174 175static 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 221int 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} 231EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); 232 233static int btmrvl_enable_sco_routing_to_host(struct btmrvl_private *priv) 234{ 235 int ret; 236 u8 subcmd = 0; 237 238 ret = btmrvl_send_sync_cmd(priv, BT_CMD_ROUTE_SCO_TO_HOST, &subcmd, 1); 239 if (ret) 240 BT_ERR("BT_CMD_ROUTE_SCO_TO_HOST command failed: %#x", ret); 241 242 return ret; 243} 244 245int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd) 246{ 247 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 248 int ret; 249 250 if (!card->support_pscan_win_report) 251 return 0; 252 253 ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE, 254 &subcmd, 1); 255 if (ret) 256 BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret); 257 258 return ret; 259} 260EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting); 261 262int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) 263{ 264 int ret; 265 u8 param[2]; 266 267 param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; 268 param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); 269 270 BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", 271 param[0], param[1]); 272 273 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); 274 if (ret) 275 BT_ERR("HSCFG command failed"); 276 277 return ret; 278} 279EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); 280 281int btmrvl_enable_ps(struct btmrvl_private *priv) 282{ 283 int ret; 284 u8 param; 285 286 if (priv->btmrvl_dev.psmode) 287 param = BT_PS_ENABLE; 288 else 289 param = BT_PS_DISABLE; 290 291 ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); 292 if (ret) 293 BT_ERR("PSMODE command failed"); 294 295 return 0; 296} 297EXPORT_SYMBOL_GPL(btmrvl_enable_ps); 298 299int btmrvl_enable_hs(struct btmrvl_private *priv) 300{ 301 struct btmrvl_adapter *adapter = priv->adapter; 302 int ret; 303 304 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); 305 if (ret) { 306 BT_ERR("Host sleep enable command failed"); 307 return ret; 308 } 309 310 ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q, 311 adapter->hs_state || 312 priv->surprise_removed, 313 WAIT_UNTIL_HS_STATE_CHANGED); 314 if (ret < 0 || priv->surprise_removed) { 315 BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d", 316 ret, adapter->hs_state, adapter->ps_state, 317 adapter->wakeup_tries); 318 } else if (!ret) { 319 BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state, 320 adapter->ps_state, adapter->wakeup_tries); 321 ret = -ETIMEDOUT; 322 } else { 323 BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state, 324 adapter->ps_state, adapter->wakeup_tries); 325 ret = 0; 326 } 327 328 return ret; 329} 330EXPORT_SYMBOL_GPL(btmrvl_enable_hs); 331 332int btmrvl_prepare_command(struct btmrvl_private *priv) 333{ 334 int ret = 0; 335 336 if (priv->btmrvl_dev.hscfgcmd) { 337 priv->btmrvl_dev.hscfgcmd = 0; 338 btmrvl_send_hscfg_cmd(priv); 339 } 340 341 if (priv->btmrvl_dev.pscmd) { 342 priv->btmrvl_dev.pscmd = 0; 343 btmrvl_enable_ps(priv); 344 } 345 346 if (priv->btmrvl_dev.hscmd) { 347 priv->btmrvl_dev.hscmd = 0; 348 349 if (priv->btmrvl_dev.hsmode) { 350 ret = btmrvl_enable_hs(priv); 351 } else { 352 ret = priv->hw_wakeup_firmware(priv); 353 priv->adapter->hs_state = HS_DEACTIVATED; 354 BT_DBG("BT: HS DEACTIVATED due to host activity!"); 355 } 356 } 357 358 return ret; 359} 360 361void btmrvl_firmware_dump(struct btmrvl_private *priv) 362{ 363 if (priv->firmware_dump) 364 priv->firmware_dump(priv); 365} 366 367static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) 368{ 369 int ret = 0; 370 371 if (!skb || !skb->data) 372 return -EINVAL; 373 374 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { 375 BT_ERR("Tx Error: Bad skb length %d : %d", 376 skb->len, BTM_UPLD_SIZE); 377 return -EINVAL; 378 } 379 380 if (skb_headroom(skb) < BTM_HEADER_LEN) { 381 struct sk_buff *tmp = skb; 382 383 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); 384 if (!skb) { 385 BT_ERR("Tx Error: realloc_headroom failed %d", 386 BTM_HEADER_LEN); 387 skb = tmp; 388 return -EINVAL; 389 } 390 391 kfree_skb(tmp); 392 } 393 394 skb_push(skb, BTM_HEADER_LEN); 395 396 /* header type: byte[3] 397 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor 398 * header length: byte[2][1][0] 399 */ 400 401 skb->data[0] = (skb->len & 0x0000ff); 402 skb->data[1] = (skb->len & 0x00ff00) >> 8; 403 skb->data[2] = (skb->len & 0xff0000) >> 16; 404 skb->data[3] = bt_cb(skb)->pkt_type; 405 406 if (priv->hw_host_to_card) 407 ret = priv->hw_host_to_card(priv, skb->data, skb->len); 408 409 return ret; 410} 411 412static void btmrvl_init_adapter(struct btmrvl_private *priv) 413{ 414 int buf_size; 415 416 skb_queue_head_init(&priv->adapter->tx_queue); 417 418 priv->adapter->ps_state = PS_AWAKE; 419 420 buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN); 421 priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL); 422 if (!priv->adapter->hw_regs_buf) { 423 priv->adapter->hw_regs = NULL; 424 BT_ERR("Unable to allocate buffer for hw_regs."); 425 } else { 426 priv->adapter->hw_regs = 427 (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf, 428 BTSDIO_DMA_ALIGN); 429 BT_DBG("hw_regs_buf=%p hw_regs=%p", 430 priv->adapter->hw_regs_buf, priv->adapter->hw_regs); 431 } 432 433 init_waitqueue_head(&priv->adapter->cmd_wait_q); 434 init_waitqueue_head(&priv->adapter->event_hs_wait_q); 435} 436 437static void btmrvl_free_adapter(struct btmrvl_private *priv) 438{ 439 skb_queue_purge(&priv->adapter->tx_queue); 440 441 kfree(priv->adapter->hw_regs_buf); 442 kfree(priv->adapter); 443 444 priv->adapter = NULL; 445} 446 447static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 448{ 449 struct btmrvl_private *priv = hci_get_drvdata(hdev); 450 451 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); 452 453 if (!test_bit(HCI_RUNNING, &hdev->flags)) { 454 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); 455 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, 456 skb->data, skb->len); 457 return -EBUSY; 458 } 459 460 switch (bt_cb(skb)->pkt_type) { 461 case HCI_COMMAND_PKT: 462 hdev->stat.cmd_tx++; 463 break; 464 465 case HCI_ACLDATA_PKT: 466 hdev->stat.acl_tx++; 467 break; 468 469 case HCI_SCODATA_PKT: 470 hdev->stat.sco_tx++; 471 break; 472 } 473 474 skb_queue_tail(&priv->adapter->tx_queue, skb); 475 476 wake_up_interruptible(&priv->main_thread.wait_q); 477 478 return 0; 479} 480 481static int btmrvl_flush(struct hci_dev *hdev) 482{ 483 struct btmrvl_private *priv = hci_get_drvdata(hdev); 484 485 skb_queue_purge(&priv->adapter->tx_queue); 486 487 return 0; 488} 489 490static int btmrvl_close(struct hci_dev *hdev) 491{ 492 struct btmrvl_private *priv = hci_get_drvdata(hdev); 493 494 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) 495 return 0; 496 497 skb_queue_purge(&priv->adapter->tx_queue); 498 499 return 0; 500} 501 502static int btmrvl_open(struct hci_dev *hdev) 503{ 504 set_bit(HCI_RUNNING, &hdev->flags); 505 506 return 0; 507} 508 509static int btmrvl_download_cal_data(struct btmrvl_private *priv, 510 u8 *data, int len) 511{ 512 int ret; 513 514 data[0] = 0x00; 515 data[1] = 0x00; 516 data[2] = 0x00; 517 data[3] = len; 518 519 print_hex_dump_bytes("Calibration data: ", 520 DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); 521 522 ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, 523 BT_CAL_HDR_LEN + len); 524 if (ret) 525 BT_ERR("Failed to download caibration data"); 526 527 return 0; 528} 529 530static int btmrvl_check_device_tree(struct btmrvl_private *priv) 531{ 532 struct device_node *dt_node; 533 u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; 534 int ret; 535 u32 val; 536 537 for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") { 538 ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val); 539 if (!ret) 540 priv->btmrvl_dev.gpio_gap = val; 541 542 ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data", 543 cal_data + BT_CAL_HDR_LEN, 544 BT_CAL_DATA_SIZE); 545 if (ret) 546 return ret; 547 548 BT_DBG("Use cal data from device tree"); 549 ret = btmrvl_download_cal_data(priv, cal_data, 550 BT_CAL_DATA_SIZE); 551 if (ret) { 552 BT_ERR("Fail to download calibrate data"); 553 return ret; 554 } 555 } 556 557 return 0; 558} 559 560static int btmrvl_setup(struct hci_dev *hdev) 561{ 562 struct btmrvl_private *priv = hci_get_drvdata(hdev); 563 int ret; 564 565 ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); 566 if (ret) 567 return ret; 568 569 priv->btmrvl_dev.gpio_gap = 0xffff; 570 571 btmrvl_check_device_tree(priv); 572 573 btmrvl_enable_sco_routing_to_host(priv); 574 575 btmrvl_pscan_window_reporting(priv, 0x01); 576 577 priv->btmrvl_dev.psmode = 1; 578 btmrvl_enable_ps(priv); 579 580 btmrvl_send_hscfg_cmd(priv); 581 582 return 0; 583} 584 585static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 586{ 587 struct sk_buff *skb; 588 long ret; 589 u8 buf[8]; 590 591 buf[0] = MRVL_VENDOR_PKT; 592 buf[1] = sizeof(bdaddr_t); 593 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 594 595 skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf, 596 HCI_INIT_TIMEOUT); 597 if (IS_ERR(skb)) { 598 ret = PTR_ERR(skb); 599 BT_ERR("%s: changing btmrvl device address failed (%ld)", 600 hdev->name, ret); 601 return ret; 602 } 603 kfree_skb(skb); 604 605 return 0; 606} 607 608/* 609 * This function handles the event generated by firmware, rx data 610 * received from firmware, and tx data sent from kernel. 611 */ 612static int btmrvl_service_main_thread(void *data) 613{ 614 struct btmrvl_thread *thread = data; 615 struct btmrvl_private *priv = thread->priv; 616 struct btmrvl_adapter *adapter = priv->adapter; 617 wait_queue_t wait; 618 struct sk_buff *skb; 619 ulong flags; 620 621 init_waitqueue_entry(&wait, current); 622 623 for (;;) { 624 add_wait_queue(&thread->wait_q, &wait); 625 626 set_current_state(TASK_INTERRUPTIBLE); 627 if (kthread_should_stop() || priv->surprise_removed) { 628 BT_DBG("main_thread: break from main thread"); 629 break; 630 } 631 632 if (adapter->wakeup_tries || 633 ((!adapter->int_count) && 634 (!priv->btmrvl_dev.tx_dnld_rdy || 635 skb_queue_empty(&adapter->tx_queue)))) { 636 BT_DBG("main_thread is sleeping..."); 637 schedule(); 638 } 639 640 set_current_state(TASK_RUNNING); 641 642 remove_wait_queue(&thread->wait_q, &wait); 643 644 BT_DBG("main_thread woke up"); 645 646 if (kthread_should_stop() || priv->surprise_removed) { 647 BT_DBG("main_thread: break from main thread"); 648 break; 649 } 650 651 spin_lock_irqsave(&priv->driver_lock, flags); 652 if (adapter->int_count) { 653 adapter->int_count = 0; 654 spin_unlock_irqrestore(&priv->driver_lock, flags); 655 priv->hw_process_int_status(priv); 656 } else if (adapter->ps_state == PS_SLEEP && 657 !skb_queue_empty(&adapter->tx_queue)) { 658 spin_unlock_irqrestore(&priv->driver_lock, flags); 659 adapter->wakeup_tries++; 660 priv->hw_wakeup_firmware(priv); 661 continue; 662 } else { 663 spin_unlock_irqrestore(&priv->driver_lock, flags); 664 } 665 666 if (adapter->ps_state == PS_SLEEP) 667 continue; 668 669 if (!priv->btmrvl_dev.tx_dnld_rdy) 670 continue; 671 672 skb = skb_dequeue(&adapter->tx_queue); 673 if (skb) { 674 if (btmrvl_tx_pkt(priv, skb)) 675 priv->btmrvl_dev.hcidev->stat.err_tx++; 676 else 677 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; 678 679 kfree_skb(skb); 680 } 681 } 682 683 return 0; 684} 685 686int btmrvl_register_hdev(struct btmrvl_private *priv) 687{ 688 struct hci_dev *hdev = NULL; 689 int ret; 690 691 hdev = hci_alloc_dev(); 692 if (!hdev) { 693 BT_ERR("Can not allocate HCI device"); 694 goto err_hdev; 695 } 696 697 priv->btmrvl_dev.hcidev = hdev; 698 hci_set_drvdata(hdev, priv); 699 700 hdev->bus = HCI_SDIO; 701 hdev->open = btmrvl_open; 702 hdev->close = btmrvl_close; 703 hdev->flush = btmrvl_flush; 704 hdev->send = btmrvl_send_frame; 705 hdev->setup = btmrvl_setup; 706 hdev->set_bdaddr = btmrvl_set_bdaddr; 707 708 hdev->dev_type = priv->btmrvl_dev.dev_type; 709 710 ret = hci_register_dev(hdev); 711 if (ret < 0) { 712 BT_ERR("Can not register HCI device"); 713 goto err_hci_register_dev; 714 } 715 716#ifdef CONFIG_DEBUG_FS 717 btmrvl_debugfs_init(hdev); 718#endif 719 720 return 0; 721 722err_hci_register_dev: 723 hci_free_dev(hdev); 724 725err_hdev: 726 /* Stop the thread servicing the interrupts */ 727 kthread_stop(priv->main_thread.task); 728 729 btmrvl_free_adapter(priv); 730 kfree(priv); 731 732 return -ENOMEM; 733} 734EXPORT_SYMBOL_GPL(btmrvl_register_hdev); 735 736struct btmrvl_private *btmrvl_add_card(void *card) 737{ 738 struct btmrvl_private *priv; 739 740 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 741 if (!priv) { 742 BT_ERR("Can not allocate priv"); 743 goto err_priv; 744 } 745 746 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); 747 if (!priv->adapter) { 748 BT_ERR("Allocate buffer for btmrvl_adapter failed!"); 749 goto err_adapter; 750 } 751 752 btmrvl_init_adapter(priv); 753 754 BT_DBG("Starting kthread..."); 755 priv->main_thread.priv = priv; 756 spin_lock_init(&priv->driver_lock); 757 758 init_waitqueue_head(&priv->main_thread.wait_q); 759 priv->main_thread.task = kthread_run(btmrvl_service_main_thread, 760 &priv->main_thread, "btmrvl_main_service"); 761 if (IS_ERR(priv->main_thread.task)) 762 goto err_thread; 763 764 priv->btmrvl_dev.card = card; 765 priv->btmrvl_dev.tx_dnld_rdy = true; 766 767 return priv; 768 769err_thread: 770 btmrvl_free_adapter(priv); 771 772err_adapter: 773 kfree(priv); 774 775err_priv: 776 return NULL; 777} 778EXPORT_SYMBOL_GPL(btmrvl_add_card); 779 780int btmrvl_remove_card(struct btmrvl_private *priv) 781{ 782 struct hci_dev *hdev; 783 784 hdev = priv->btmrvl_dev.hcidev; 785 786 wake_up_interruptible(&priv->adapter->cmd_wait_q); 787 wake_up_interruptible(&priv->adapter->event_hs_wait_q); 788 789 kthread_stop(priv->main_thread.task); 790 791#ifdef CONFIG_DEBUG_FS 792 btmrvl_debugfs_remove(hdev); 793#endif 794 795 hci_unregister_dev(hdev); 796 797 hci_free_dev(hdev); 798 799 priv->btmrvl_dev.hcidev = NULL; 800 801 btmrvl_free_adapter(priv); 802 803 kfree(priv); 804 805 return 0; 806} 807EXPORT_SYMBOL_GPL(btmrvl_remove_card); 808 809MODULE_AUTHOR("Marvell International Ltd."); 810MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); 811MODULE_VERSION(VERSION); 812MODULE_LICENSE("GPL v2"); 813