1// SPDX-License-Identifier: GPL-2.0 2/****************************************************************************** 3 * usb_intf.c 4 * 5 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. 6 * Linux device driver for RTL8192SU 7 * 8 * Modifications for inclusion into the Linux staging tree are 9 * Copyright(c) 2010 Larry Finger. All rights reserved. 10 * 11 * Contact information: 12 * WLAN FAE <wlanfae@realtek.com> 13 * Larry Finger <Larry.Finger@lwfinger.net> 14 * 15 ******************************************************************************/ 16 17#define _HCI_INTF_C_ 18 19#include <linux/usb.h> 20#include <linux/module.h> 21#include <linux/firmware.h> 22 23#include "osdep_service.h" 24#include "drv_types.h" 25#include "recv_osdep.h" 26#include "xmit_osdep.h" 27#include "rtl8712_efuse.h" 28#include "usb_ops.h" 29#include "usb_osintf.h" 30 31static struct usb_interface *pintf; 32 33static int r871xu_drv_init(struct usb_interface *pusb_intf, 34 const struct usb_device_id *pdid); 35 36static void r871xu_dev_remove(struct usb_interface *pusb_intf); 37 38static const struct usb_device_id rtl871x_usb_id_tbl[] = { 39/* RTL8188SU */ 40 /* Realtek */ 41 {USB_DEVICE(0x0BDA, 0x8171)}, 42 {USB_DEVICE(0x0bda, 0x8173)}, 43 {USB_DEVICE(0x0bda, 0x8712)}, 44 {USB_DEVICE(0x0bda, 0x8713)}, 45 {USB_DEVICE(0x0bda, 0xC512)}, 46 /* Abocom */ 47 {USB_DEVICE(0x07B8, 0x8188)}, 48 /* ASUS */ 49 {USB_DEVICE(0x0B05, 0x1786)}, 50 {USB_DEVICE(0x0B05, 0x1791)}, /* 11n mode disable */ 51 /* Belkin */ 52 {USB_DEVICE(0x050D, 0x945A)}, 53 /* ISY IWL - Belkin clone */ 54 {USB_DEVICE(0x050D, 0x11F1)}, 55 /* Corega */ 56 {USB_DEVICE(0x07AA, 0x0047)}, 57 /* D-Link */ 58 {USB_DEVICE(0x2001, 0x3306)}, 59 {USB_DEVICE(0x07D1, 0x3306)}, /* 11n mode disable */ 60 /* Edimax */ 61 {USB_DEVICE(0x7392, 0x7611)}, 62 /* EnGenius */ 63 {USB_DEVICE(0x1740, 0x9603)}, 64 /* Hawking */ 65 {USB_DEVICE(0x0E66, 0x0016)}, 66 /* Hercules */ 67 {USB_DEVICE(0x06F8, 0xE034)}, 68 {USB_DEVICE(0x06F8, 0xE032)}, 69 /* Logitec */ 70 {USB_DEVICE(0x0789, 0x0167)}, 71 /* PCI */ 72 {USB_DEVICE(0x2019, 0xAB28)}, 73 {USB_DEVICE(0x2019, 0xED16)}, 74 /* Sitecom */ 75 {USB_DEVICE(0x0DF6, 0x0057)}, 76 {USB_DEVICE(0x0DF6, 0x0045)}, 77 {USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */ 78 {USB_DEVICE(0x0DF6, 0x004B)}, 79 {USB_DEVICE(0x0DF6, 0x005B)}, 80 {USB_DEVICE(0x0DF6, 0x005D)}, 81 {USB_DEVICE(0x0DF6, 0x0063)}, 82 /* Sweex */ 83 {USB_DEVICE(0x177F, 0x0154)}, 84 /* Thinkware */ 85 {USB_DEVICE(0x0BDA, 0x5077)}, 86 /* Toshiba */ 87 {USB_DEVICE(0x1690, 0x0752)}, 88 /* - */ 89 {USB_DEVICE(0x20F4, 0x646B)}, 90 {USB_DEVICE(0x083A, 0xC512)}, 91 {USB_DEVICE(0x25D4, 0x4CA1)}, 92 {USB_DEVICE(0x25D4, 0x4CAB)}, 93 94/* RTL8191SU */ 95 /* Realtek */ 96 {USB_DEVICE(0x0BDA, 0x8172)}, 97 {USB_DEVICE(0x0BDA, 0x8192)}, 98 /* Amigo */ 99 {USB_DEVICE(0x0EB0, 0x9061)}, 100 /* ASUS/EKB */ 101 {USB_DEVICE(0x13D3, 0x3323)}, 102 {USB_DEVICE(0x13D3, 0x3311)}, /* 11n mode disable */ 103 {USB_DEVICE(0x13D3, 0x3342)}, 104 /* ASUS/EKBLenovo */ 105 {USB_DEVICE(0x13D3, 0x3333)}, 106 {USB_DEVICE(0x13D3, 0x3334)}, 107 {USB_DEVICE(0x13D3, 0x3335)}, /* 11n mode disable */ 108 {USB_DEVICE(0x13D3, 0x3336)}, /* 11n mode disable */ 109 /* ASUS/Media BOX */ 110 {USB_DEVICE(0x13D3, 0x3309)}, 111 /* Belkin */ 112 {USB_DEVICE(0x050D, 0x815F)}, 113 /* D-Link */ 114 {USB_DEVICE(0x07D1, 0x3302)}, 115 {USB_DEVICE(0x07D1, 0x3300)}, 116 {USB_DEVICE(0x07D1, 0x3303)}, 117 /* Edimax */ 118 {USB_DEVICE(0x7392, 0x7612)}, 119 /* EnGenius */ 120 {USB_DEVICE(0x1740, 0x9605)}, 121 /* Guillemot */ 122 {USB_DEVICE(0x06F8, 0xE031)}, 123 /* Hawking */ 124 {USB_DEVICE(0x0E66, 0x0015)}, 125 /* Mediao */ 126 {USB_DEVICE(0x13D3, 0x3306)}, 127 /* PCI */ 128 {USB_DEVICE(0x2019, 0xED18)}, 129 {USB_DEVICE(0x2019, 0x4901)}, 130 /* Sitecom */ 131 {USB_DEVICE(0x0DF6, 0x0058)}, 132 {USB_DEVICE(0x0DF6, 0x0049)}, 133 {USB_DEVICE(0x0DF6, 0x004C)}, 134 {USB_DEVICE(0x0DF6, 0x006C)}, 135 {USB_DEVICE(0x0DF6, 0x0064)}, 136 /* Skyworth */ 137 {USB_DEVICE(0x14b2, 0x3300)}, 138 {USB_DEVICE(0x14b2, 0x3301)}, 139 {USB_DEVICE(0x14B2, 0x3302)}, 140 /* - */ 141 {USB_DEVICE(0x04F2, 0xAFF2)}, 142 {USB_DEVICE(0x04F2, 0xAFF5)}, 143 {USB_DEVICE(0x04F2, 0xAFF6)}, 144 {USB_DEVICE(0x13D3, 0x3339)}, 145 {USB_DEVICE(0x13D3, 0x3340)}, /* 11n mode disable */ 146 {USB_DEVICE(0x13D3, 0x3341)}, /* 11n mode disable */ 147 {USB_DEVICE(0x13D3, 0x3310)}, 148 {USB_DEVICE(0x13D3, 0x3325)}, 149 150/* RTL8192SU */ 151 /* Realtek */ 152 {USB_DEVICE(0x0BDA, 0x8174)}, 153 /* Belkin */ 154 {USB_DEVICE(0x050D, 0x845A)}, 155 /* Corega */ 156 {USB_DEVICE(0x07AA, 0x0051)}, 157 /* Edimax */ 158 {USB_DEVICE(0x7392, 0x7622)}, 159 /* NEC */ 160 {USB_DEVICE(0x0409, 0x02B6)}, 161 {} 162}; 163 164MODULE_DEVICE_TABLE(usb, rtl871x_usb_id_tbl); 165 166static struct specific_device_id specific_device_id_tbl[] = { 167 {.idVendor = 0x0b05, .idProduct = 0x1791, 168 .flags = SPEC_DEV_ID_DISABLE_HT}, 169 {.idVendor = 0x0df6, .idProduct = 0x0059, 170 .flags = SPEC_DEV_ID_DISABLE_HT}, 171 {.idVendor = 0x13d3, .idProduct = 0x3306, 172 .flags = SPEC_DEV_ID_DISABLE_HT}, 173 {.idVendor = 0x13D3, .idProduct = 0x3311, 174 .flags = SPEC_DEV_ID_DISABLE_HT}, 175 {.idVendor = 0x13d3, .idProduct = 0x3335, 176 .flags = SPEC_DEV_ID_DISABLE_HT}, 177 {.idVendor = 0x13d3, .idProduct = 0x3336, 178 .flags = SPEC_DEV_ID_DISABLE_HT}, 179 {.idVendor = 0x13d3, .idProduct = 0x3340, 180 .flags = SPEC_DEV_ID_DISABLE_HT}, 181 {.idVendor = 0x13d3, .idProduct = 0x3341, 182 .flags = SPEC_DEV_ID_DISABLE_HT}, 183 {} 184}; 185 186struct drv_priv { 187 struct usb_driver r871xu_drv; 188 int drv_registered; 189}; 190 191#ifdef CONFIG_PM 192static int r871x_suspend(struct usb_interface *pusb_intf, pm_message_t state) 193{ 194 struct net_device *pnetdev = usb_get_intfdata(pusb_intf); 195 struct _adapter *padapter = netdev_priv(pnetdev); 196 197 netdev_info(pnetdev, "Suspending...\n"); 198 padapter->suspended = true; 199 rtl871x_intf_stop(padapter); 200 if (pnetdev->netdev_ops->ndo_stop) 201 pnetdev->netdev_ops->ndo_stop(pnetdev); 202 mdelay(10); 203 netif_device_detach(pnetdev); 204 return 0; 205} 206 207static void rtl871x_intf_resume(struct _adapter *padapter) 208{ 209 if (padapter->dvobjpriv.inirp_init) 210 padapter->dvobjpriv.inirp_init(padapter); 211} 212 213static int r871x_resume(struct usb_interface *pusb_intf) 214{ 215 struct net_device *pnetdev = usb_get_intfdata(pusb_intf); 216 struct _adapter *padapter = netdev_priv(pnetdev); 217 218 netdev_info(pnetdev, "Resuming...\n"); 219 netif_device_attach(pnetdev); 220 if (pnetdev->netdev_ops->ndo_open) 221 pnetdev->netdev_ops->ndo_open(pnetdev); 222 padapter->suspended = false; 223 rtl871x_intf_resume(padapter); 224 return 0; 225} 226#endif 227 228static struct drv_priv drvpriv = { 229 .r871xu_drv.name = "r8712u", 230 .r871xu_drv.id_table = rtl871x_usb_id_tbl, 231 .r871xu_drv.probe = r871xu_drv_init, 232 .r871xu_drv.disconnect = r871xu_dev_remove, 233#ifdef CONFIG_PM 234 .r871xu_drv.suspend = r871x_suspend, 235 .r871xu_drv.resume = r871x_resume, 236#endif 237}; 238 239static uint r8712_usb_dvobj_init(struct _adapter *padapter) 240{ 241 uint status = _SUCCESS; 242 struct usb_host_interface *phost_iface; 243 struct usb_interface_descriptor *piface_desc; 244 struct dvobj_priv *pdvobjpriv = &padapter->dvobjpriv; 245 struct usb_device *pusbd = pdvobjpriv->pusbdev; 246 247 pdvobjpriv->padapter = padapter; 248 padapter->eeprom_address_size = 6; 249 phost_iface = pintf->cur_altsetting; 250 piface_desc = &phost_iface->desc; 251 pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints; 252 if (pusbd->speed == USB_SPEED_HIGH) { 253 pdvobjpriv->ishighspeed = true; 254 dev_info(&pusbd->dev, "r8712u: USB_SPEED_HIGH with %d endpoints\n", 255 pdvobjpriv->nr_endpoint); 256 } else { 257 pdvobjpriv->ishighspeed = false; 258 dev_info(&pusbd->dev, "r8712u: USB_SPEED_LOW with %d endpoints\n", 259 pdvobjpriv->nr_endpoint); 260 } 261 if ((r8712_alloc_io_queue(padapter)) == _FAIL) 262 status = _FAIL; 263 return status; 264} 265 266static void r8712_usb_dvobj_deinit(struct _adapter *padapter) 267{ 268 r8712_free_io_queue(padapter); 269} 270 271void rtl871x_intf_stop(struct _adapter *padapter) 272{ 273 /*disable_hw_interrupt*/ 274 if (!padapter->surprise_removed) { 275 /*device still exists, so driver can do i/o operation 276 * TODO: 277 */ 278 } 279 280 /* cancel in irp */ 281 if (padapter->dvobjpriv.inirp_deinit) 282 padapter->dvobjpriv.inirp_deinit(padapter); 283 /* cancel out irp */ 284 r8712_usb_write_port_cancel(padapter); 285 /* TODO:cancel other irps */ 286} 287 288void r871x_dev_unload(struct _adapter *padapter) 289{ 290 if (padapter->bup) { 291 /*s1.*/ 292 padapter->driver_stopped = true; 293 294 /*s3.*/ 295 rtl871x_intf_stop(padapter); 296 297 /*s4.*/ 298 r8712_stop_drv_threads(padapter); 299 300 /*s5.*/ 301 if (!padapter->surprise_removed) { 302 padapter->hw_init_completed = false; 303 rtl8712_hal_deinit(padapter); 304 } 305 306 padapter->bup = false; 307 } 308} 309 310static void disable_ht_for_spec_devid(const struct usb_device_id *pdid, 311 struct _adapter *padapter) 312{ 313 u16 vid, pid; 314 u32 flags; 315 int i; 316 int num = ARRAY_SIZE(specific_device_id_tbl); 317 318 for (i = 0; i < num; i++) { 319 vid = specific_device_id_tbl[i].idVendor; 320 pid = specific_device_id_tbl[i].idProduct; 321 flags = specific_device_id_tbl[i].flags; 322 323 if ((pdid->idVendor == vid) && (pdid->idProduct == pid) && 324 (flags & SPEC_DEV_ID_DISABLE_HT)) { 325 padapter->registrypriv.ht_enable = 0; 326 padapter->registrypriv.cbw40_enable = 0; 327 padapter->registrypriv.ampdu_enable = 0; 328 } 329 } 330} 331 332static const struct device_type wlan_type = { 333 .name = "wlan", 334}; 335 336/* 337 * drv_init() - a device potentially for us 338 * 339 * notes: drv_init() is called when the bus driver has located a card for us 340 * to support. We accept the new device by returning 0. 341 */ 342static int r871xu_drv_init(struct usb_interface *pusb_intf, 343 const struct usb_device_id *pdid) 344{ 345 uint status; 346 struct _adapter *padapter = NULL; 347 struct dvobj_priv *pdvobjpriv; 348 struct net_device *pnetdev; 349 struct usb_device *udev; 350 351 /* In this probe function, O.S. will provide the usb interface pointer 352 * to driver. We have to increase the reference count of the usb device 353 * structure by using the usb_get_dev function. 354 */ 355 udev = interface_to_usbdev(pusb_intf); 356 usb_get_dev(udev); 357 pintf = pusb_intf; 358 /* step 1. */ 359 pnetdev = r8712_init_netdev(); 360 if (!pnetdev) 361 goto put_dev; 362 padapter = netdev_priv(pnetdev); 363 disable_ht_for_spec_devid(pdid, padapter); 364 pdvobjpriv = &padapter->dvobjpriv; 365 pdvobjpriv->padapter = padapter; 366 padapter->dvobjpriv.pusbdev = udev; 367 padapter->pusb_intf = pusb_intf; 368 usb_set_intfdata(pusb_intf, pnetdev); 369 SET_NETDEV_DEV(pnetdev, &pusb_intf->dev); 370 pnetdev->dev.type = &wlan_type; 371 /* step 2. */ 372 padapter->dvobj_init = r8712_usb_dvobj_init; 373 padapter->dvobj_deinit = r8712_usb_dvobj_deinit; 374 padapter->halpriv.hal_bus_init = r8712_usb_hal_bus_init; 375 padapter->dvobjpriv.inirp_init = r8712_usb_inirp_init; 376 padapter->dvobjpriv.inirp_deinit = r8712_usb_inirp_deinit; 377 /* step 3. 378 * initialize the dvobj_priv 379 */ 380 381 status = padapter->dvobj_init(padapter); 382 if (status != _SUCCESS) 383 goto free_netdev; 384 385 /* step 4. */ 386 status = r8712_init_drv_sw(padapter); 387 if (status) 388 goto dvobj_deinit; 389 /* step 5. read efuse/eeprom data and get mac_addr */ 390 { 391 int i, offset; 392 u8 mac[6]; 393 u8 tmpU1b, AutoloadFail, eeprom_CustomerID; 394 u8 *pdata = padapter->eeprompriv.efuse_eeprom_data; 395 396 tmpU1b = r8712_read8(padapter, EE_9346CR);/*CR9346*/ 397 398 /* To check system boot selection.*/ 399 dev_info(&udev->dev, "r8712u: Boot from %s: Autoload %s\n", 400 (tmpU1b & _9356SEL) ? "EEPROM" : "EFUSE", 401 (tmpU1b & _EEPROM_EN) ? "OK" : "Failed"); 402 403 /* To check autoload success or not.*/ 404 if (tmpU1b & _EEPROM_EN) { 405 AutoloadFail = true; 406 /* The following operations prevent Efuse leakage by 407 * turning on 2.5V. 408 */ 409 tmpU1b = r8712_read8(padapter, EFUSE_TEST + 3); 410 r8712_write8(padapter, EFUSE_TEST + 3, tmpU1b | 0x80); 411 msleep(20); 412 r8712_write8(padapter, EFUSE_TEST + 3, 413 (tmpU1b & (~BIT(7)))); 414 415 /* Retrieve Chip version. 416 * Recognize IC version by Reg0x4 BIT15. 417 */ 418 tmpU1b = (u8)((r8712_read32(padapter, PMC_FSM) >> 15) & 419 0x1F); 420 if (tmpU1b == 0x3) 421 padapter->registrypriv.chip_version = 422 RTL8712_3rdCUT; 423 else 424 padapter->registrypriv.chip_version = 425 (tmpU1b >> 1) + 1; 426 switch (padapter->registrypriv.chip_version) { 427 case RTL8712_1stCUT: 428 case RTL8712_2ndCUT: 429 case RTL8712_3rdCUT: 430 break; 431 default: 432 padapter->registrypriv.chip_version = 433 RTL8712_2ndCUT; 434 break; 435 } 436 437 for (i = 0, offset = 0; i < 128; i += 8, offset++) 438 r8712_efuse_pg_packet_read(padapter, offset, 439 &pdata[i]); 440 441 if (!r8712_initmac || !mac_pton(r8712_initmac, mac)) { 442 /* Use the mac address stored in the Efuse 443 * offset = 0x12 for usb in efuse 444 */ 445 ether_addr_copy(mac, &pdata[0x12]); 446 } 447 eeprom_CustomerID = pdata[0x52]; 448 switch (eeprom_CustomerID) { 449 case EEPROM_CID_ALPHA: 450 padapter->eeprompriv.CustomerID = 451 RT_CID_819x_ALPHA; 452 break; 453 case EEPROM_CID_CAMEO: 454 padapter->eeprompriv.CustomerID = 455 RT_CID_819x_CAMEO; 456 break; 457 case EEPROM_CID_SITECOM: 458 padapter->eeprompriv.CustomerID = 459 RT_CID_819x_Sitecom; 460 break; 461 case EEPROM_CID_COREGA: 462 padapter->eeprompriv.CustomerID = 463 RT_CID_COREGA; 464 break; 465 case EEPROM_CID_Senao: 466 padapter->eeprompriv.CustomerID = 467 RT_CID_819x_Senao; 468 break; 469 case EEPROM_CID_EDIMAX_BELKIN: 470 padapter->eeprompriv.CustomerID = 471 RT_CID_819x_Edimax_Belkin; 472 break; 473 case EEPROM_CID_SERCOMM_BELKIN: 474 padapter->eeprompriv.CustomerID = 475 RT_CID_819x_Sercomm_Belkin; 476 break; 477 case EEPROM_CID_WNC_COREGA: 478 padapter->eeprompriv.CustomerID = 479 RT_CID_819x_WNC_COREGA; 480 break; 481 case EEPROM_CID_WHQL: 482 break; 483 case EEPROM_CID_NetCore: 484 padapter->eeprompriv.CustomerID = 485 RT_CID_819x_Netcore; 486 break; 487 case EEPROM_CID_CAMEO1: 488 padapter->eeprompriv.CustomerID = 489 RT_CID_819x_CAMEO1; 490 break; 491 case EEPROM_CID_CLEVO: 492 padapter->eeprompriv.CustomerID = 493 RT_CID_819x_CLEVO; 494 break; 495 default: 496 padapter->eeprompriv.CustomerID = 497 RT_CID_DEFAULT; 498 break; 499 } 500 dev_info(&udev->dev, "r8712u: CustomerID = 0x%.4x\n", 501 padapter->eeprompriv.CustomerID); 502 /* Led mode */ 503 switch (padapter->eeprompriv.CustomerID) { 504 case RT_CID_DEFAULT: 505 case RT_CID_819x_ALPHA: 506 case RT_CID_819x_CAMEO: 507 padapter->ledpriv.LedStrategy = SW_LED_MODE1; 508 padapter->ledpriv.bRegUseLed = true; 509 break; 510 case RT_CID_819x_Sitecom: 511 padapter->ledpriv.LedStrategy = SW_LED_MODE2; 512 padapter->ledpriv.bRegUseLed = true; 513 break; 514 case RT_CID_COREGA: 515 case RT_CID_819x_Senao: 516 padapter->ledpriv.LedStrategy = SW_LED_MODE3; 517 padapter->ledpriv.bRegUseLed = true; 518 break; 519 case RT_CID_819x_Edimax_Belkin: 520 padapter->ledpriv.LedStrategy = SW_LED_MODE4; 521 padapter->ledpriv.bRegUseLed = true; 522 break; 523 case RT_CID_819x_Sercomm_Belkin: 524 padapter->ledpriv.LedStrategy = SW_LED_MODE5; 525 padapter->ledpriv.bRegUseLed = true; 526 break; 527 case RT_CID_819x_WNC_COREGA: 528 padapter->ledpriv.LedStrategy = SW_LED_MODE6; 529 padapter->ledpriv.bRegUseLed = true; 530 break; 531 default: 532 padapter->ledpriv.LedStrategy = SW_LED_MODE0; 533 padapter->ledpriv.bRegUseLed = false; 534 break; 535 } 536 } else { 537 AutoloadFail = false; 538 } 539 if ((!AutoloadFail) || 540 ((mac[0] == 0xff) && (mac[1] == 0xff) && 541 (mac[2] == 0xff) && (mac[3] == 0xff) && 542 (mac[4] == 0xff) && (mac[5] == 0xff)) || 543 ((mac[0] == 0x00) && (mac[1] == 0x00) && 544 (mac[2] == 0x00) && (mac[3] == 0x00) && 545 (mac[4] == 0x00) && (mac[5] == 0x00))) { 546 mac[0] = 0x00; 547 mac[1] = 0xe0; 548 mac[2] = 0x4c; 549 mac[3] = 0x87; 550 mac[4] = 0x00; 551 mac[5] = 0x00; 552 } 553 if (r8712_initmac) { 554 /* Make sure the user did not select a multicast 555 * address by setting bit 1 of first octet. 556 */ 557 mac[0] &= 0xFE; 558 dev_info(&udev->dev, 559 "r8712u: MAC Address from user = %pM\n", mac); 560 } else { 561 dev_info(&udev->dev, 562 "r8712u: MAC Address from efuse = %pM\n", mac); 563 } 564 eth_hw_addr_set(pnetdev, mac); 565 } 566 /* step 6. Load the firmware asynchronously */ 567 if (rtl871x_load_fw(padapter)) 568 goto deinit_drv_sw; 569 init_completion(&padapter->rx_filter_ready); 570 return 0; 571 572deinit_drv_sw: 573 r8712_free_drv_sw(padapter); 574dvobj_deinit: 575 padapter->dvobj_deinit(padapter); 576free_netdev: 577 free_netdev(pnetdev); 578put_dev: 579 usb_put_dev(udev); 580 usb_set_intfdata(pusb_intf, NULL); 581 return -ENODEV; 582} 583 584/* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove() 585 * => how to recognize both 586 */ 587static void r871xu_dev_remove(struct usb_interface *pusb_intf) 588{ 589 struct net_device *pnetdev = usb_get_intfdata(pusb_intf); 590 struct usb_device *udev = interface_to_usbdev(pusb_intf); 591 struct _adapter *padapter = netdev_priv(pnetdev); 592 593 /* never exit with a firmware callback pending */ 594 wait_for_completion(&padapter->rtl8712_fw_ready); 595 if (pnetdev->reg_state != NETREG_UNINITIALIZED) 596 unregister_netdev(pnetdev); /* will call netdev_close() */ 597 usb_set_intfdata(pusb_intf, NULL); 598 release_firmware(padapter->fw); 599 if (drvpriv.drv_registered) 600 padapter->surprise_removed = true; 601 r8712_flush_rwctrl_works(padapter); 602 r8712_flush_led_works(padapter); 603 udelay(1); 604 /* Stop driver mlme relation timer */ 605 r8712_stop_drv_timers(padapter); 606 r871x_dev_unload(padapter); 607 if (padapter->dvobj_deinit) 608 padapter->dvobj_deinit(padapter); 609 r8712_free_drv_sw(padapter); 610 free_netdev(pnetdev); 611 612 /* decrease the reference count of the usb device structure 613 * when disconnect 614 */ 615 usb_put_dev(udev); 616 617 /* If we didn't unplug usb dongle and remove/insert module, driver 618 * fails on sitesurvey for the first time when device is up. 619 * Reset usb port for sitesurvey fail issue. 620 */ 621 if (udev->state != USB_STATE_NOTATTACHED) 622 usb_reset_device(udev); 623} 624 625static int __init r8712u_drv_entry(void) 626{ 627 drvpriv.drv_registered = true; 628 return usb_register(&drvpriv.r871xu_drv); 629} 630 631static void __exit r8712u_drv_halt(void) 632{ 633 drvpriv.drv_registered = false; 634 usb_deregister(&drvpriv.r871xu_drv); 635} 636 637module_init(r8712u_drv_entry); 638module_exit(r8712u_drv_halt); 639