drivers/staging/rtl8712/usb_intf.c

   1 /******************************************************************************
   2  * usb_intf.c
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  * Linux device driver for RTL8192SU
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  19  *
  20  * Modifications for inclusion into the Linux staging tree are
  21  * Copyright(c) 2010 Larry Finger. All rights reserved.
  22  *
  23  * Contact information:
  24  * WLAN FAE <wlanfae@realtek.com>
  25  * Larry Finger <Larry.Finger@lwfinger.net>
  26  *
  27  ******************************************************************************/
  28
  29 #define _HCI_INTF_C_
  30
  31 #include "osdep_service.h"
  32 #include "drv_types.h"
  33 #include "recv_osdep.h"
  34 #include "xmit_osdep.h"
  35 #include "rtl8712_efuse.h"
  36 #include "usb_vendor_req.h"
  37 #include "usb_ops.h"
  38 #include "usb_osintf.h"
  39
  40 #define DRVER  "v7_0.20100831"
  41
  42 static struct usb_interface *pintf;
  43
  44 static int r871xu_drv_init(struct usb_interface *pusb_intf,
  45                            const struct usb_device_id *pdid);
  46
  47 static void r871xu_dev_remove(struct usb_interface *pusb_intf);
  48
  49 static struct usb_device_id rtl871x_usb_id_tbl[] = {
  50
  51 /* RTL8188SU */
  52         /* Realtek */
  53         {USB_DEVICE(0x0BDA, 0x8171)},
  54         {USB_DEVICE(0x0bda, 0x8173)},
  55         {USB_DEVICE(0x0bda, 0x8712)},
  56         {USB_DEVICE(0x0bda, 0x8713)},
  57         {USB_DEVICE(0x0bda, 0xC512)},
  58         /* Abocom */
  59         {USB_DEVICE(0x07B8, 0x8188)},
  60         /* ASUS */
  61         {USB_DEVICE(0x0B05, 0x1786)},
  62         {USB_DEVICE(0x0B05, 0x1791)}, /* 11n mode disable */
  63         /* Belkin */
  64         {USB_DEVICE(0x050D, 0x945A)},
  65         /* Corega */
  66         {USB_DEVICE(0x07AA, 0x0047)},
  67         /* D-Link */
  68         {USB_DEVICE(0x2001, 0x3306)},
  69         {USB_DEVICE(0x07D1, 0x3306)}, /* 11n mode disable */
  70         /* Edimax */
  71         {USB_DEVICE(0x7392, 0x7611)},
  72         /* EnGenius */
  73         {USB_DEVICE(0x1740, 0x9603)},
  74         /* Hawking */
  75         {USB_DEVICE(0x0E66, 0x0016)},
  76         /* Hercules */
  77         {USB_DEVICE(0x06F8, 0xE034)},
  78         {USB_DEVICE(0x06F8, 0xE032)},
  79         /* Logitec */
  80         {USB_DEVICE(0x0789, 0x0167)},
  81         /* PCI */
  82         {USB_DEVICE(0x2019, 0xAB28)},
  83         {USB_DEVICE(0x2019, 0xED16)},
  84         /* Sitecom */
  85         {USB_DEVICE(0x0DF6, 0x0057)},
  86         {USB_DEVICE(0x0DF6, 0x0045)},
  87         {USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */
  88         {USB_DEVICE(0x0DF6, 0x004B)},
  89         {USB_DEVICE(0x0DF6, 0x005B)},
  90         {USB_DEVICE(0x0DF6, 0x005D)},
  91         {USB_DEVICE(0x0DF6, 0x0063)},
  92         /* Sweex */
  93         {USB_DEVICE(0x177F, 0x0154)},
  94         /* Thinkware */
  95         {USB_DEVICE(0x0BDA, 0x5077)},
  96         /* Toshiba */
  97         {USB_DEVICE(0x1690, 0x0752)},
  98         /* - */
  99         {USB_DEVICE(0x20F4, 0x646B)},
 100         {USB_DEVICE(0x083A, 0xC512)},
 101
 102 /* RTL8191SU */
 103         /* Realtek */
 104         {USB_DEVICE(0x0BDA, 0x8172)},
 105         /* Amigo */
 106         {USB_DEVICE(0x0EB0, 0x9061)},
 107         /* ASUS/EKB */
 108         {USB_DEVICE(0x0BDA, 0x8172)},
 109         {USB_DEVICE(0x13D3, 0x3323)},
 110         {USB_DEVICE(0x13D3, 0x3311)}, /* 11n mode disable */
 111         {USB_DEVICE(0x13D3, 0x3342)},
 112         /* ASUS/EKBLenovo */
 113         {USB_DEVICE(0x13D3, 0x3333)},
 114         {USB_DEVICE(0x13D3, 0x3334)},
 115         {USB_DEVICE(0x13D3, 0x3335)}, /* 11n mode disable */
 116         {USB_DEVICE(0x13D3, 0x3336)}, /* 11n mode disable */
 117         /* ASUS/Media BOX */
 118         {USB_DEVICE(0x13D3, 0x3309)},
 119         /* Belkin */
 120         {USB_DEVICE(0x050D, 0x815F)},
 121         /* D-Link */
 122         {USB_DEVICE(0x07D1, 0x3302)},
 123         {USB_DEVICE(0x07D1, 0x3300)},
 124         {USB_DEVICE(0x07D1, 0x3303)},
 125         /* Edimax */
 126         {USB_DEVICE(0x7392, 0x7612)},
 127         /* EnGenius */
 128         {USB_DEVICE(0x1740, 0x9605)},
 129         /* Guillemot */
 130         {USB_DEVICE(0x06F8, 0xE031)},
 131         /* Hawking */
 132         {USB_DEVICE(0x0E66, 0x0015)},
 133         /* Mediao */
 134         {USB_DEVICE(0x13D3, 0x3306)},
 135         /* PCI */
 136         {USB_DEVICE(0x2019, 0xED18)},
 137         {USB_DEVICE(0x2019, 0x4901)},
 138         /* Sitecom */
 139         {USB_DEVICE(0x0DF6, 0x0058)},
 140         {USB_DEVICE(0x0DF6, 0x0049)},
 141         {USB_DEVICE(0x0DF6, 0x004C)},
 142         {USB_DEVICE(0x0DF6, 0x0064)},
 143         /* Skyworth */
 144         {USB_DEVICE(0x14b2, 0x3300)},
 145         {USB_DEVICE(0x14b2, 0x3301)},
 146         {USB_DEVICE(0x14B2, 0x3302)},
 147         /* - */
 148         {USB_DEVICE(0x04F2, 0xAFF2)},
 149         {USB_DEVICE(0x04F2, 0xAFF5)},
 150         {USB_DEVICE(0x04F2, 0xAFF6)},
 151         {USB_DEVICE(0x13D3, 0x3339)},
 152         {USB_DEVICE(0x13D3, 0x3340)}, /* 11n mode disable */
 153         {USB_DEVICE(0x13D3, 0x3341)}, /* 11n mode disable */
 154         {USB_DEVICE(0x13D3, 0x3310)},
 155         {USB_DEVICE(0x13D3, 0x3325)},
 156
 157 /* RTL8192SU */
 158         /* Realtek */
 159         {USB_DEVICE(0x0BDA, 0x8174)},
 160         {USB_DEVICE(0x0BDA, 0x8174)},
 161         /* Belkin */
 162         {USB_DEVICE(0x050D, 0x845A)},
 163         /* Corega */
 164         {USB_DEVICE(0x07AA, 0x0051)},
 165         /* Edimax */
 166         {USB_DEVICE(0x7392, 0x7622)},
 167         /* NEC */
 168         {USB_DEVICE(0x0409, 0x02B6)},
 169         {}
 170 };
 171
 172 MODULE_DEVICE_TABLE(usb, rtl871x_usb_id_tbl);
 173
 174 static struct specific_device_id specific_device_id_tbl[] = {
 175         {.idVendor = 0x0b05, .idProduct = 0x1791,
 176                  .flags = SPEC_DEV_ID_DISABLE_HT},
 177         {.idVendor = 0x0df6, .idProduct = 0x0059,
 178                  .flags = SPEC_DEV_ID_DISABLE_HT},
 179         {.idVendor = 0x13d3, .idProduct = 0x3306,
 180                  .flags = SPEC_DEV_ID_DISABLE_HT},
 181         {.idVendor = 0x13D3, .idProduct = 0x3311,
 182                  .flags = SPEC_DEV_ID_DISABLE_HT},
 183         {.idVendor = 0x13d3, .idProduct = 0x3335,
 184                  .flags = SPEC_DEV_ID_DISABLE_HT},
 185         {.idVendor = 0x13d3, .idProduct = 0x3336,
 186                  .flags = SPEC_DEV_ID_DISABLE_HT},
 187         {.idVendor = 0x13d3, .idProduct = 0x3340,
 188                  .flags = SPEC_DEV_ID_DISABLE_HT},
 189         {.idVendor = 0x13d3, .idProduct = 0x3341,
 190                  .flags = SPEC_DEV_ID_DISABLE_HT},
 191         {}
 192 };
 193
 194 struct drv_priv {
 195         struct usb_driver r871xu_drv;
 196         int drv_registered;
 197 };
 198
 199 #ifdef CONFIG_PM
 200 static int r871x_suspend(struct usb_interface *pusb_intf, pm_message_t state)
 201 {
 202         struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 203
 204         printk(KERN_INFO "r8712: suspending...\n");
 205         if (!pnetdev || !netif_running(pnetdev)) {
 206                 printk(KERN_INFO "r8712: unable to suspend\n");
 207                 return 0;
 208         }
 209         if (pnetdev->netdev_ops->ndo_stop)
 210                 pnetdev->netdev_ops->ndo_stop(pnetdev);
 211         mdelay(10);
 212         netif_device_detach(pnetdev);
 213         return 0;
 214 }
 215
 216 static int r871x_resume(struct usb_interface *pusb_intf)
 217 {
 218         struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 219
 220         printk(KERN_INFO "r8712: resuming...\n");
 221         if (!pnetdev || !netif_running(pnetdev)) {
 222                 printk(KERN_INFO "r8712: unable to resume\n");
 223                 return 0;
 224         }
 225         netif_device_attach(pnetdev);
 226         if (pnetdev->netdev_ops->ndo_open)
 227                 pnetdev->netdev_ops->ndo_open(pnetdev);
 228         return 0;
 229 }
 230
 231 static int r871x_reset_resume(struct usb_interface *pusb_intf)
 232 {
 233         /* dummy routine */
 234         return 0;
 235 }
 236
 237 #endif
 238
 239 static struct drv_priv drvpriv = {
 240         .r871xu_drv.name = "r8712u",
 241         .r871xu_drv.id_table = rtl871x_usb_id_tbl,
 242         .r871xu_drv.probe = r871xu_drv_init,
 243         .r871xu_drv.disconnect = r871xu_dev_remove,
 244 #ifdef CONFIG_PM
 245         .r871xu_drv.suspend = r871x_suspend,
 246         .r871xu_drv.resume = r871x_resume,
 247         .r871xu_drv.reset_resume = r871x_reset_resume,
 248 #endif
 249 };
 250
 251 static uint r8712_usb_dvobj_init(struct _adapter *padapter)
 252 {
 253         uint    status = _SUCCESS;
 254         struct  usb_device_descriptor           *pdev_desc;
 255         struct  usb_host_config                 *phost_conf;
 256         struct  usb_config_descriptor           *pconf_desc;
 257         struct  usb_host_interface              *phost_iface;
 258         struct  usb_interface_descriptor        *piface_desc;
 259         struct dvobj_priv *pdvobjpriv = &padapter->dvobjpriv;
 260         struct usb_device *pusbd = pdvobjpriv->pusbdev;
 261
 262         pdvobjpriv->padapter = padapter;
 263         padapter->EepromAddressSize = 6;
 264         pdev_desc = &pusbd->descriptor;
 265         phost_conf = pusbd->actconfig;
 266         pconf_desc = &phost_conf->desc;
 267         phost_iface = &pintf->altsetting[0];
 268         piface_desc = &phost_iface->desc;
 269         pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints;
 270         if (pusbd->speed == USB_SPEED_HIGH) {
 271                 pdvobjpriv->ishighspeed = true;
 272                 printk(KERN_INFO "r8712u: USB_SPEED_HIGH with %d endpoints\n",
 273                        pdvobjpriv->nr_endpoint);
 274         } else {
 275                 pdvobjpriv->ishighspeed = false;
 276                 printk(KERN_INFO "r8712u: USB_SPEED_LOW with %d endpoints\n",
 277                        pdvobjpriv->nr_endpoint);
 278         }
 279         if ((r8712_alloc_io_queue(padapter)) == _FAIL)
 280                 status = _FAIL;
 281         sema_init(&(padapter->dvobjpriv.usb_suspend_sema), 0);
 282         return status;
 283 }
 284
 285 static void r8712_usb_dvobj_deinit(struct _adapter *padapter)
 286 {
 287 }
 288
 289 void rtl871x_intf_stop(struct _adapter *padapter)
 290 {
 291         /*disable_hw_interrupt*/
 292         if (padapter->bSurpriseRemoved == false) {
 293                 /*device still exists, so driver can do i/o operation
 294                  * TODO: */
 295         }
 296
 297         /* cancel in irp */
 298         if (padapter->dvobjpriv.inirp_deinit != NULL)
 299                 padapter->dvobjpriv.inirp_deinit(padapter);
 300         /* cancel out irp */
 301         r8712_usb_write_port_cancel(padapter);
 302         /* TODO:cancel other irps */
 303 }
 304
 305 void r871x_dev_unload(struct _adapter *padapter)
 306 {
 307         if (padapter->bup == true) {
 308                 /*s1.*/
 309                 padapter->bDriverStopped = true;
 310
 311                 /*s3.*/
 312                 rtl871x_intf_stop(padapter);
 313
 314                 /*s4.*/
 315                 r8712_stop_drv_threads(padapter);
 316
 317                 /*s5.*/
 318                 if (padapter->bSurpriseRemoved == false) {
 319                         padapter->hw_init_completed = false;
 320                         rtl8712_hal_deinit(padapter);
 321                 }
 322
 323                 /*s6.*/
 324                 if (padapter->dvobj_deinit)
 325                         padapter->dvobj_deinit(padapter);
 326                 padapter->bup = false;
 327         }
 328 }
 329
 330 static void disable_ht_for_spec_devid(const struct usb_device_id *pdid,
 331                                       struct _adapter *padapter)
 332 {
 333         u16 vid, pid;
 334         u32 flags;
 335         int i;
 336         int num = sizeof(specific_device_id_tbl) /
 337                   sizeof(struct specific_device_id);
 338
 339         for (i = 0; i < num; i++) {
 340                 vid = specific_device_id_tbl[i].idVendor;
 341                 pid = specific_device_id_tbl[i].idProduct;
 342                 flags = specific_device_id_tbl[i].flags;
 343
 344                 if ((pdid->idVendor == vid) && (pdid->idProduct == pid) &&
 345                     (flags&SPEC_DEV_ID_DISABLE_HT)) {
 346                         padapter->registrypriv.ht_enable = 0;
 347                         padapter->registrypriv.cbw40_enable = 0;
 348                         padapter->registrypriv.ampdu_enable = 0;
 349                 }
 350         }
 351 }
 352
 353 static u8 key_2char2num(u8 hch, u8 lch)
 354 {
 355         return (hex_to_bin(hch) << 4) | hex_to_bin(lch);
 356 }
 357
 358 /*
 359  * drv_init() - a device potentially for us
 360  *
 361  * notes: drv_init() is called when the bus driver has located a card for us
 362  * to support. We accept the new device by returning 0.
 363 */
 364 static int r871xu_drv_init(struct usb_interface *pusb_intf,
 365                            const struct usb_device_id *pdid)
 366 {
 367         uint status;
 368         struct _adapter *padapter = NULL;
 369         struct dvobj_priv *pdvobjpriv;
 370         struct net_device *pnetdev;
 371
 372         printk(KERN_INFO "r8712u: DriverVersion: %s\n", DRVER);
 373         /* In this probe function, O.S. will provide the usb interface pointer
 374          * to driver. We have to increase the reference count of the usb device
 375          * structure by using the usb_get_dev function.
 376          */
 377         usb_get_dev(interface_to_usbdev(pusb_intf));
 378         pintf = pusb_intf;
 379         /* step 1. */
 380         pnetdev = r8712_init_netdev();
 381         if (!pnetdev)
 382                 goto error;
 383         padapter = (struct _adapter *)_netdev_priv(pnetdev);
 384         disable_ht_for_spec_devid(pdid, padapter);
 385         pdvobjpriv = &padapter->dvobjpriv;
 386         pdvobjpriv->padapter = padapter;
 387         padapter->dvobjpriv.pusbdev = interface_to_usbdev(pusb_intf);
 388         usb_set_intfdata(pusb_intf, pnetdev);
 389         SET_NETDEV_DEV(pnetdev, &pusb_intf->dev);
 390         /* step 2. */
 391         padapter->dvobj_init = &r8712_usb_dvobj_init;
 392         padapter->dvobj_deinit = &r8712_usb_dvobj_deinit;
 393         padapter->halpriv.hal_bus_init = &r8712_usb_hal_bus_init;
 394         padapter->dvobjpriv.inirp_init = &r8712_usb_inirp_init;
 395         padapter->dvobjpriv.inirp_deinit = &r8712_usb_inirp_deinit;
 396         /* step 3.
 397          * initialize the dvobj_priv
 398          */
 399         if (padapter->dvobj_init == NULL)
 400                         goto error;
 401         else {
 402                 status = padapter->dvobj_init(padapter);
 403                 if (status != _SUCCESS)
 404                         goto error;
 405         }
 406         /* step 4. */
 407         status = r8712_init_drv_sw(padapter);
 408         if (status == _FAIL)
 409                 goto error;
 410         /* step 5. read efuse/eeprom data and get mac_addr */
 411         {
 412                 int i, offset;
 413                 u8 mac[6];
 414                 u8 tmpU1b, AutoloadFail, eeprom_CustomerID;
 415                 u8 *pdata = padapter->eeprompriv.efuse_eeprom_data;
 416
 417                 tmpU1b = r8712_read8(padapter, EE_9346CR);/*CR9346*/
 418
 419                 /* To check system boot selection.*/
 420                 printk(KERN_INFO "r8712u: Boot from %s: Autoload %s\n",
 421                        (tmpU1b & _9356SEL) ? "EEPROM" : "EFUSE",
 422                        (tmpU1b & _EEPROM_EN) ? "OK" : "Failed");
 423
 424                 /* To check autoload success or not.*/
 425                 if (tmpU1b & _EEPROM_EN) {
 426                         AutoloadFail = true;
 427                         /* The following operations prevent Efuse leakage by
 428                          * turning on 2.5V.
 429                          */
 430                         tmpU1b = r8712_read8(padapter, EFUSE_TEST+3);
 431                         r8712_write8(padapter, EFUSE_TEST + 3, tmpU1b | 0x80);
 432                         msleep(20);
 433                         r8712_write8(padapter, EFUSE_TEST + 3,
 434                                      (tmpU1b & (~BIT(7))));
 435
 436                         /* Retrieve Chip version.
 437                          * Recognize IC version by Reg0x4 BIT15.
 438                          */
 439                         tmpU1b = (u8)((r8712_read32(padapter, PMC_FSM) >> 15) &
 440                                                     0x1F);
 441                         if (tmpU1b == 0x3)
 442                                 padapter->registrypriv.chip_version =
 443                                      RTL8712_3rdCUT;
 444                         else
 445                                 padapter->registrypriv.chip_version =
 446                                      (tmpU1b >> 1) + 1;
 447                         switch (padapter->registrypriv.chip_version) {
 448                         case RTL8712_1stCUT:
 449                         case RTL8712_2ndCUT:
 450                         case RTL8712_3rdCUT:
 451                                 break;
 452                         default:
 453                                 padapter->registrypriv.chip_version =
 454                                      RTL8712_2ndCUT;
 455                                 break;
 456                         }
 457
 458                         for (i = 0, offset = 0; i < 128; i += 8, offset++)
 459                                 r8712_efuse_pg_packet_read(padapter, offset,
 460                                                      &pdata[i]);
 461
 462                         if (r8712_initmac) {
 463                                 /* Users specify the mac address */
 464                                 int jj, kk;
 465
 466                                 for (jj = 0, kk = 0; jj < ETH_ALEN;
 467                                      jj++, kk += 3)
 468                                         mac[jj] =
 469                                            key_2char2num(r8712_initmac[kk],
 470                                            r8712_initmac[kk + 1]);
 471                         } else {
 472                                 /* Use the mac address stored in the Efuse
 473                                  * offset = 0x12 for usb in efuse
 474                                  */
 475                                 memcpy(mac, &pdata[0x12], ETH_ALEN);
 476                         }
 477                         eeprom_CustomerID = pdata[0x52];
 478                         switch (eeprom_CustomerID) {
 479                         case EEPROM_CID_ALPHA:
 480                                 padapter->eeprompriv.CustomerID =
 481                                                  RT_CID_819x_ALPHA;
 482                                 break;
 483                         case EEPROM_CID_CAMEO:
 484                                 padapter->eeprompriv.CustomerID =
 485                                                  RT_CID_819x_CAMEO;
 486                                 break;
 487                         case EEPROM_CID_SITECOM:
 488                                 padapter->eeprompriv.CustomerID =
 489                                                  RT_CID_819x_Sitecom;
 490                                 break;
 491                         case EEPROM_CID_COREGA:
 492                                 padapter->eeprompriv.CustomerID =
 493                                                  RT_CID_COREGA;
 494                                 break;
 495                         case EEPROM_CID_Senao:
 496                                 padapter->eeprompriv.CustomerID =
 497                                                  RT_CID_819x_Senao;
 498                                 break;
 499                         case EEPROM_CID_EDIMAX_BELKIN:
 500                                 padapter->eeprompriv.CustomerID =
 501                                                  RT_CID_819x_Edimax_Belkin;
 502                                 break;
 503                         case EEPROM_CID_SERCOMM_BELKIN:
 504                                 padapter->eeprompriv.CustomerID =
 505                                                  RT_CID_819x_Sercomm_Belkin;
 506                                 break;
 507                         case EEPROM_CID_WNC_COREGA:
 508                                 padapter->eeprompriv.CustomerID =
 509                                                  RT_CID_819x_WNC_COREGA;
 510                                 break;
 511                         case EEPROM_CID_WHQL:
 512                                 break;
 513                         case EEPROM_CID_NetCore:
 514                                 padapter->eeprompriv.CustomerID =
 515                                                  RT_CID_819x_Netcore;
 516                                 break;
 517                         case EEPROM_CID_CAMEO1:
 518                                 padapter->eeprompriv.CustomerID =
 519                                                  RT_CID_819x_CAMEO1;
 520                                 break;
 521                         case EEPROM_CID_CLEVO:
 522                                 padapter->eeprompriv.CustomerID =
 523                                                  RT_CID_819x_CLEVO;
 524                                 break;
 525                         default:
 526                                 padapter->eeprompriv.CustomerID =
 527                                                  RT_CID_DEFAULT;
 528                                 break;
 529                         }
 530                         printk(KERN_INFO "r8712u: CustomerID = 0x%.4x\n",
 531                              padapter->eeprompriv.CustomerID);
 532                         /* Led mode */
 533                         switch (padapter->eeprompriv.CustomerID) {
 534                         case RT_CID_DEFAULT:
 535                         case RT_CID_819x_ALPHA:
 536                         case RT_CID_819x_CAMEO:
 537                                 padapter->ledpriv.LedStrategy = SW_LED_MODE1;
 538                                 padapter->ledpriv.bRegUseLed = true;
 539                                 break;
 540                         case RT_CID_819x_Sitecom:
 541                                 padapter->ledpriv.LedStrategy = SW_LED_MODE2;
 542                                 padapter->ledpriv.bRegUseLed = true;
 543                                 break;
 544                         case RT_CID_COREGA:
 545                         case RT_CID_819x_Senao:
 546                                 padapter->ledpriv.LedStrategy = SW_LED_MODE3;
 547                                 padapter->ledpriv.bRegUseLed = true;
 548                                 break;
 549                         case RT_CID_819x_Edimax_Belkin:
 550                                 padapter->ledpriv.LedStrategy = SW_LED_MODE4;
 551                                 padapter->ledpriv.bRegUseLed = true;
 552                                 break;
 553                         case RT_CID_819x_Sercomm_Belkin:
 554                                 padapter->ledpriv.LedStrategy = SW_LED_MODE5;
 555                                 padapter->ledpriv.bRegUseLed = true;
 556                                 break;
 557                         case RT_CID_819x_WNC_COREGA:
 558                                 padapter->ledpriv.LedStrategy = SW_LED_MODE6;
 559                                 padapter->ledpriv.bRegUseLed = true;
 560                                 break;
 561                         default:
 562                                 padapter->ledpriv.LedStrategy = SW_LED_MODE0;
 563                                 padapter->ledpriv.bRegUseLed = false;
 564                                 break;
 565                         }
 566                 } else
 567                         AutoloadFail = false;
 568                 if (((mac[0] == 0xff) && (mac[1] == 0xff) &&
 569                      (mac[2] == 0xff) && (mac[3] == 0xff) &&
 570                      (mac[4] == 0xff) && (mac[5] == 0xff)) ||
 571                     ((mac[0] == 0x00) && (mac[1] == 0x00) &&
 572                      (mac[2] == 0x00) && (mac[3] == 0x00) &&
 573                      (mac[4] == 0x00) && (mac[5] == 0x00)) ||
 574                      (AutoloadFail == false)) {
 575                         mac[0] = 0x00;
 576                         mac[1] = 0xe0;
 577                         mac[2] = 0x4c;
 578                         mac[3] = 0x87;
 579                         mac[4] = 0x00;
 580                         mac[5] = 0x00;
 581                 }
 582                 if (r8712_initmac) {
 583                         /* Make sure the user did not select a multicast
 584                          * address by setting bit 1 of first octet.
 585                          */
 586                         mac[0] &= 0xFE;
 587                         printk(KERN_INFO "r8712u: MAC Address from user = "
 588                                "%pM\n", mac);
 589                 } else
 590                         printk(KERN_INFO "r8712u: MAC Address from efuse = "
 591                                "%pM\n", mac);
 592                 memcpy(pnetdev->dev_addr, mac, ETH_ALEN);
 593         }
 594         /* step 6. Tell the network stack we exist */
 595         if (register_netdev(pnetdev) != 0)
 596                 goto error;
 597         return 0;
 598 error:
 599         usb_put_dev(interface_to_usbdev(pusb_intf));
 600         usb_set_intfdata(pusb_intf, NULL);
 601         if (padapter->dvobj_deinit != NULL)
 602                 padapter->dvobj_deinit(padapter);
 603         if (pnetdev)
 604                 os_free_netdev(pnetdev);
 605         return -ENODEV;
 606 }
 607
 608 /* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove()
 609  * => how to recognize both */
 610 static void r871xu_dev_remove(struct usb_interface *pusb_intf)
 611 {
 612         struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 613         struct _adapter *padapter = netdev_priv(pnetdev);
 614         struct usb_device *udev = interface_to_usbdev(pusb_intf);
 615
 616         if (padapter) {
 617                 if (drvpriv.drv_registered == true)
 618                         padapter->bSurpriseRemoved = true;
 619                 if (pnetdev != NULL) {
 620                         /* will call netdev_close() */
 621                         unregister_netdev(pnetdev);
 622                 }
 623                 flush_scheduled_work();
 624                 udelay(1);
 625                 r871x_dev_unload(padapter);
 626                 r8712_free_drv_sw(padapter);
 627         }
 628         usb_set_intfdata(pusb_intf, NULL);
 629         /* decrease the reference count of the usb device structure
 630          * when disconnect */
 631         usb_put_dev(udev);
 632         /* If we didn't unplug usb dongle and remove/insert modlue, driver
 633          * fails on sitesurvey for the first time when device is up.
 634          * Reset usb port for sitesurvey fail issue. */
 635         if (udev->state != USB_STATE_NOTATTACHED)
 636                 usb_reset_device(udev);
 637         return;
 638 }
 639
 640 static int __init r8712u_drv_entry(void)
 641 {
 642         drvpriv.drv_registered = true;
 643         return usb_register(&drvpriv.r871xu_drv);
 644 }
 645
 646 static void __exit r8712u_drv_halt(void)
 647 {
 648         drvpriv.drv_registered = false;
 649         usb_deregister(&drvpriv.r871xu_drv);
 650         printk(KERN_INFO "r8712u: Driver unloaded\n");
 651 }
 652
 653 module_init(r8712u_drv_entry);
 654 module_exit(r8712u_drv_halt);