LXR linux/drivers/staging/rtl8712/usb

   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
  40/* RTL8188SU */
  41        /* Realtek */
  42        {USB_DEVICE(0x0BDA, 0x8171)},
  43        {USB_DEVICE(0x0bda, 0x8173)},
  44        {USB_DEVICE(0x0bda, 0x8712)},
  45        {USB_DEVICE(0x0bda, 0x8713)},
  46        {USB_DEVICE(0x0bda, 0xC512)},
  47        /* Abocom */
  48        {USB_DEVICE(0x07B8, 0x8188)},
  49        /* ASUS */
  50        {USB_DEVICE(0x0B05, 0x1786)},
  51        {USB_DEVICE(0x0B05, 0x1791)}, /* 11n mode disable */
  52        /* Belkin */
  53        {USB_DEVICE(0x050D, 0x945A)},
  54        /* ISY IWL - Belkin clone */
  55        {USB_DEVICE(0x050D, 0x11F1)},
  56        /* Corega */
  57        {USB_DEVICE(0x07AA, 0x0047)},
  58        /* D-Link */
  59        {USB_DEVICE(0x2001, 0x3306)},
  60        {USB_DEVICE(0x07D1, 0x3306)}, /* 11n mode disable */
  61        /* Edimax */
  62        {USB_DEVICE(0x7392, 0x7611)},
  63        /* EnGenius */
  64        {USB_DEVICE(0x1740, 0x9603)},
  65        /* Hawking */
  66        {USB_DEVICE(0x0E66, 0x0016)},
  67        /* Hercules */
  68        {USB_DEVICE(0x06F8, 0xE034)},
  69        {USB_DEVICE(0x06F8, 0xE032)},
  70        /* Logitec */
  71        {USB_DEVICE(0x0789, 0x0167)},
  72        /* PCI */
  73        {USB_DEVICE(0x2019, 0xAB28)},
  74        {USB_DEVICE(0x2019, 0xED16)},
  75        /* Sitecom */
  76        {USB_DEVICE(0x0DF6, 0x0057)},
  77        {USB_DEVICE(0x0DF6, 0x0045)},
  78        {USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */
  79        {USB_DEVICE(0x0DF6, 0x004B)},
  80        {USB_DEVICE(0x0DF6, 0x005B)},
  81        {USB_DEVICE(0x0DF6, 0x005D)},
  82        {USB_DEVICE(0x0DF6, 0x0063)},
  83        /* Sweex */
  84        {USB_DEVICE(0x177F, 0x0154)},
  85        /* Thinkware */
  86        {USB_DEVICE(0x0BDA, 0x5077)},
  87        /* Toshiba */
  88        {USB_DEVICE(0x1690, 0x0752)},
  89        /* - */
  90        {USB_DEVICE(0x20F4, 0x646B)},
  91        {USB_DEVICE(0x083A, 0xC512)},
  92        {USB_DEVICE(0x25D4, 0x4CA1)},
  93        {USB_DEVICE(0x25D4, 0x4CAB)},
  94
  95/* RTL8191SU */
  96        /* Realtek */
  97        {USB_DEVICE(0x0BDA, 0x8172)},
  98        {USB_DEVICE(0x0BDA, 0x8192)},
  99        /* Amigo */
 100        {USB_DEVICE(0x0EB0, 0x9061)},
 101        /* ASUS/EKB */
 102        {USB_DEVICE(0x13D3, 0x3323)},
 103        {USB_DEVICE(0x13D3, 0x3311)}, /* 11n mode disable */
 104        {USB_DEVICE(0x13D3, 0x3342)},
 105        /* ASUS/EKBLenovo */
 106        {USB_DEVICE(0x13D3, 0x3333)},
 107        {USB_DEVICE(0x13D3, 0x3334)},
 108        {USB_DEVICE(0x13D3, 0x3335)}, /* 11n mode disable */
 109        {USB_DEVICE(0x13D3, 0x3336)}, /* 11n mode disable */
 110        /* ASUS/Media BOX */
 111        {USB_DEVICE(0x13D3, 0x3309)},
 112        /* Belkin */
 113        {USB_DEVICE(0x050D, 0x815F)},
 114        /* D-Link */
 115        {USB_DEVICE(0x07D1, 0x3302)},
 116        {USB_DEVICE(0x07D1, 0x3300)},
 117        {USB_DEVICE(0x07D1, 0x3303)},
 118        /* Edimax */
 119        {USB_DEVICE(0x7392, 0x7612)},
 120        /* EnGenius */
 121        {USB_DEVICE(0x1740, 0x9605)},
 122        /* Guillemot */
 123        {USB_DEVICE(0x06F8, 0xE031)},
 124        /* Hawking */
 125        {USB_DEVICE(0x0E66, 0x0015)},
 126        /* Mediao */
 127        {USB_DEVICE(0x13D3, 0x3306)},
 128        /* PCI */
 129        {USB_DEVICE(0x2019, 0xED18)},
 130        {USB_DEVICE(0x2019, 0x4901)},
 131        /* Sitecom */
 132        {USB_DEVICE(0x0DF6, 0x0058)},
 133        {USB_DEVICE(0x0DF6, 0x0049)},
 134        {USB_DEVICE(0x0DF6, 0x004C)},
 135        {USB_DEVICE(0x0DF6, 0x006C)},
 136        {USB_DEVICE(0x0DF6, 0x0064)},
 137        /* Skyworth */
 138        {USB_DEVICE(0x14b2, 0x3300)},
 139        {USB_DEVICE(0x14b2, 0x3301)},
 140        {USB_DEVICE(0x14B2, 0x3302)},
 141        /* - */
 142        {USB_DEVICE(0x04F2, 0xAFF2)},
 143        {USB_DEVICE(0x04F2, 0xAFF5)},
 144        {USB_DEVICE(0x04F2, 0xAFF6)},
 145        {USB_DEVICE(0x13D3, 0x3339)},
 146        {USB_DEVICE(0x13D3, 0x3340)}, /* 11n mode disable */
 147        {USB_DEVICE(0x13D3, 0x3341)}, /* 11n mode disable */
 148        {USB_DEVICE(0x13D3, 0x3310)},
 149        {USB_DEVICE(0x13D3, 0x3325)},
 150
 151/* RTL8192SU */
 152        /* Realtek */
 153        {USB_DEVICE(0x0BDA, 0x8174)},
 154        /* Belkin */
 155        {USB_DEVICE(0x050D, 0x845A)},
 156        /* Corega */
 157        {USB_DEVICE(0x07AA, 0x0051)},
 158        /* Edimax */
 159        {USB_DEVICE(0x7392, 0x7622)},
 160        /* NEC */
 161        {USB_DEVICE(0x0409, 0x02B6)},
 162        {}
 163};
 164
 165MODULE_DEVICE_TABLE(usb, rtl871x_usb_id_tbl);
 166
 167static struct specific_device_id specific_device_id_tbl[] = {
 168        {.idVendor = 0x0b05, .idProduct = 0x1791,
 169                 .flags = SPEC_DEV_ID_DISABLE_HT},
 170        {.idVendor = 0x0df6, .idProduct = 0x0059,
 171                 .flags = SPEC_DEV_ID_DISABLE_HT},
 172        {.idVendor = 0x13d3, .idProduct = 0x3306,
 173                 .flags = SPEC_DEV_ID_DISABLE_HT},
 174        {.idVendor = 0x13D3, .idProduct = 0x3311,
 175                 .flags = SPEC_DEV_ID_DISABLE_HT},
 176        {.idVendor = 0x13d3, .idProduct = 0x3335,
 177                 .flags = SPEC_DEV_ID_DISABLE_HT},
 178        {.idVendor = 0x13d3, .idProduct = 0x3336,
 179                 .flags = SPEC_DEV_ID_DISABLE_HT},
 180        {.idVendor = 0x13d3, .idProduct = 0x3340,
 181                 .flags = SPEC_DEV_ID_DISABLE_HT},
 182        {.idVendor = 0x13d3, .idProduct = 0x3341,
 183                 .flags = SPEC_DEV_ID_DISABLE_HT},
 184        {}
 185};
 186
 187struct drv_priv {
 188        struct usb_driver r871xu_drv;
 189        int drv_registered;
 190};
 191
 192#ifdef CONFIG_PM
 193static int r871x_suspend(struct usb_interface *pusb_intf, pm_message_t state)
 194{
 195        struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 196        struct _adapter *padapter = netdev_priv(pnetdev);
 197
 198        netdev_info(pnetdev, "Suspending...\n");
 199        padapter->suspended = true;
 200        rtl871x_intf_stop(padapter);
 201        if (pnetdev->netdev_ops->ndo_stop)
 202                pnetdev->netdev_ops->ndo_stop(pnetdev);
 203        mdelay(10);
 204        netif_device_detach(pnetdev);
 205        return 0;
 206}
 207
 208static void rtl871x_intf_resume(struct _adapter *padapter)
 209{
 210        if (padapter->dvobjpriv.inirp_init)
 211                padapter->dvobjpriv.inirp_init(padapter);
 212}
 213
 214static int r871x_resume(struct usb_interface *pusb_intf)
 215{
 216        struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 217        struct _adapter *padapter = netdev_priv(pnetdev);
 218
 219        netdev_info(pnetdev,  "Resuming...\n");
 220        netif_device_attach(pnetdev);
 221        if (pnetdev->netdev_ops->ndo_open)
 222                pnetdev->netdev_ops->ndo_open(pnetdev);
 223        padapter->suspended = false;
 224        rtl871x_intf_resume(padapter);
 225        return 0;
 226}
 227#endif
 228
 229static struct drv_priv drvpriv = {
 230        .r871xu_drv.name = "r8712u",
 231        .r871xu_drv.id_table = rtl871x_usb_id_tbl,
 232        .r871xu_drv.probe = r871xu_drv_init,
 233        .r871xu_drv.disconnect = r871xu_dev_remove,
 234#ifdef CONFIG_PM
 235        .r871xu_drv.suspend = r871x_suspend,
 236        .r871xu_drv.resume = r871x_resume,
 237#endif
 238};
 239
 240static uint r8712_usb_dvobj_init(struct _adapter *padapter)
 241{
 242        uint    status = _SUCCESS;
 243        struct  usb_host_interface              *phost_iface;
 244        struct  usb_interface_descriptor        *piface_desc;
 245        struct dvobj_priv *pdvobjpriv = &padapter->dvobjpriv;
 246        struct usb_device *pusbd = pdvobjpriv->pusbdev;
 247
 248        pdvobjpriv->padapter = padapter;
 249        padapter->eeprom_address_size = 6;
 250        phost_iface = pintf->cur_altsetting;
 251        piface_desc = &phost_iface->desc;
 252        pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints;
 253        if (pusbd->speed == USB_SPEED_HIGH) {
 254                pdvobjpriv->ishighspeed = true;
 255                dev_info(&pusbd->dev, "r8712u: USB_SPEED_HIGH with %d endpoints\n",
 256                         pdvobjpriv->nr_endpoint);
 257        } else {
 258                pdvobjpriv->ishighspeed = false;
 259                dev_info(&pusbd->dev, "r8712u: USB_SPEED_LOW with %d endpoints\n",
 260                         pdvobjpriv->nr_endpoint);
 261        }
 262        if ((r8712_alloc_io_queue(padapter)) == _FAIL)
 263                status = _FAIL;
 264        return status;
 265}
 266
 267static void r8712_usb_dvobj_deinit(struct _adapter *padapter)
 268{
 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                /*s6.*/
 307                if (padapter->dvobj_deinit)
 308                        padapter->dvobj_deinit(padapter);
 309                padapter->bup = false;
 310        }
 311}
 312
 313static void disable_ht_for_spec_devid(const struct usb_device_id *pdid,
 314                                      struct _adapter *padapter)
 315{
 316        u16 vid, pid;
 317        u32 flags;
 318        int i;
 319        int num = ARRAY_SIZE(specific_device_id_tbl);
 320
 321        for (i = 0; i < num; i++) {
 322                vid = specific_device_id_tbl[i].idVendor;
 323                pid = specific_device_id_tbl[i].idProduct;
 324                flags = specific_device_id_tbl[i].flags;
 325
 326                if ((pdid->idVendor == vid) && (pdid->idProduct == pid) &&
 327                    (flags & SPEC_DEV_ID_DISABLE_HT)) {
 328                        padapter->registrypriv.ht_enable = 0;
 329                        padapter->registrypriv.cbw40_enable = 0;
 330                        padapter->registrypriv.ampdu_enable = 0;
 331                }
 332        }
 333}
 334
 335static const struct device_type wlan_type = {
 336        .name = "wlan",
 337};
 338
 339/*
 340 * drv_init() - a device potentially for us
 341 *
 342 * notes: drv_init() is called when the bus driver has located a card for us
 343 * to support. We accept the new device by returning 0.
 344 */
 345static int r871xu_drv_init(struct usb_interface *pusb_intf,
 346                           const struct usb_device_id *pdid)
 347{
 348        uint status;
 349        struct _adapter *padapter = NULL;
 350        struct dvobj_priv *pdvobjpriv;
 351        struct net_device *pnetdev;
 352        struct usb_device *udev;
 353
 354        /* In this probe function, O.S. will provide the usb interface pointer
 355         * to driver. We have to increase the reference count of the usb device
 356         * structure by using the usb_get_dev function.
 357         */
 358        udev = interface_to_usbdev(pusb_intf);
 359        usb_get_dev(udev);
 360        pintf = pusb_intf;
 361        /* step 1. */
 362        pnetdev = r8712_init_netdev();
 363        if (!pnetdev)
 364                goto error;
 365        padapter = netdev_priv(pnetdev);
 366        disable_ht_for_spec_devid(pdid, padapter);
 367        pdvobjpriv = &padapter->dvobjpriv;
 368        pdvobjpriv->padapter = padapter;
 369        padapter->dvobjpriv.pusbdev = udev;
 370        padapter->pusb_intf = pusb_intf;
 371        usb_set_intfdata(pusb_intf, pnetdev);
 372        SET_NETDEV_DEV(pnetdev, &pusb_intf->dev);
 373        pnetdev->dev.type = &wlan_type;
 374        /* step 2. */
 375        padapter->dvobj_init = r8712_usb_dvobj_init;
 376        padapter->dvobj_deinit = r8712_usb_dvobj_deinit;
 377        padapter->halpriv.hal_bus_init = r8712_usb_hal_bus_init;
 378        padapter->dvobjpriv.inirp_init = r8712_usb_inirp_init;
 379        padapter->dvobjpriv.inirp_deinit = r8712_usb_inirp_deinit;
 380        /* step 3.
 381         * initialize the dvobj_priv
 382         */
 383        if (!padapter->dvobj_init) {
 384                goto error;
 385        } else {
 386                status = padapter->dvobj_init(padapter);
 387                if (status != _SUCCESS)
 388                        goto error;
 389        }
 390        /* step 4. */
 391        status = r8712_init_drv_sw(padapter);
 392        if (status)
 393                goto error;
 394        /* step 5. read efuse/eeprom data and get mac_addr */
 395        {
 396                int i, offset;
 397                u8 mac[6];
 398                u8 tmpU1b, AutoloadFail, eeprom_CustomerID;
 399                u8 *pdata = padapter->eeprompriv.efuse_eeprom_data;
 400
 401                tmpU1b = r8712_read8(padapter, EE_9346CR);/*CR9346*/
 402
 403                /* To check system boot selection.*/
 404                dev_info(&udev->dev, "r8712u: Boot from %s: Autoload %s\n",
 405                         (tmpU1b & _9356SEL) ? "EEPROM" : "EFUSE",
 406                         (tmpU1b & _EEPROM_EN) ? "OK" : "Failed");
 407
 408                /* To check autoload success or not.*/
 409                if (tmpU1b & _EEPROM_EN) {
 410                        AutoloadFail = true;
 411                        /* The following operations prevent Efuse leakage by
 412                         * turning on 2.5V.
 413                         */
 414                        tmpU1b = r8712_read8(padapter, EFUSE_TEST + 3);
 415                        r8712_write8(padapter, EFUSE_TEST + 3, tmpU1b | 0x80);
 416                        msleep(20);
 417                        r8712_write8(padapter, EFUSE_TEST + 3,
 418                                     (tmpU1b & (~BIT(7))));
 419
 420                        /* Retrieve Chip version.
 421                         * Recognize IC version by Reg0x4 BIT15.
 422                         */
 423                        tmpU1b = (u8)((r8712_read32(padapter, PMC_FSM) >> 15) &
 424                                                    0x1F);
 425                        if (tmpU1b == 0x3)
 426                                padapter->registrypriv.chip_version =
 427                                     RTL8712_3rdCUT;
 428                        else
 429                                padapter->registrypriv.chip_version =
 430                                     (tmpU1b >> 1) + 1;
 431                        switch (padapter->registrypriv.chip_version) {
 432                        case RTL8712_1stCUT:
 433                        case RTL8712_2ndCUT:
 434                        case RTL8712_3rdCUT:
 435                                break;
 436                        default:
 437                                padapter->registrypriv.chip_version =
 438                                     RTL8712_2ndCUT;
 439                                break;
 440                        }
 441
 442                        for (i = 0, offset = 0; i < 128; i += 8, offset++)
 443                                r8712_efuse_pg_packet_read(padapter, offset,
 444                                                     &pdata[i]);
 445
 446                        if (!r8712_initmac || !mac_pton(r8712_initmac, mac)) {
 447                                /* Use the mac address stored in the Efuse
 448                                 * offset = 0x12 for usb in efuse
 449                                 */
 450                                ether_addr_copy(mac, &pdata[0x12]);
 451                        }
 452                        eeprom_CustomerID = pdata[0x52];
 453                        switch (eeprom_CustomerID) {
 454                        case EEPROM_CID_ALPHA:
 455                                padapter->eeprompriv.CustomerID =
 456                                                 RT_CID_819x_ALPHA;
 457                                break;
 458                        case EEPROM_CID_CAMEO:
 459                                padapter->eeprompriv.CustomerID =
 460                                                 RT_CID_819x_CAMEO;
 461                                break;
 462                        case EEPROM_CID_SITECOM:
 463                                padapter->eeprompriv.CustomerID =
 464                                                 RT_CID_819x_Sitecom;
 465                                break;
 466                        case EEPROM_CID_COREGA:
 467                                padapter->eeprompriv.CustomerID =
 468                                                 RT_CID_COREGA;
 469                                break;
 470                        case EEPROM_CID_Senao:
 471                                padapter->eeprompriv.CustomerID =
 472                                                 RT_CID_819x_Senao;
 473                                break;
 474                        case EEPROM_CID_EDIMAX_BELKIN:
 475                                padapter->eeprompriv.CustomerID =
 476                                                 RT_CID_819x_Edimax_Belkin;
 477                                break;
 478                        case EEPROM_CID_SERCOMM_BELKIN:
 479                                padapter->eeprompriv.CustomerID =
 480                                                 RT_CID_819x_Sercomm_Belkin;
 481                                break;
 482                        case EEPROM_CID_WNC_COREGA:
 483                                padapter->eeprompriv.CustomerID =
 484                                                 RT_CID_819x_WNC_COREGA;
 485                                break;
 486                        case EEPROM_CID_WHQL:
 487                                break;
 488                        case EEPROM_CID_NetCore:
 489                                padapter->eeprompriv.CustomerID =
 490                                                 RT_CID_819x_Netcore;
 491                                break;
 492                        case EEPROM_CID_CAMEO1:
 493                                padapter->eeprompriv.CustomerID =
 494                                                 RT_CID_819x_CAMEO1;
 495                                break;
 496                        case EEPROM_CID_CLEVO:
 497                                padapter->eeprompriv.CustomerID =
 498                                                 RT_CID_819x_CLEVO;
 499                                break;
 500                        default:
 501                                padapter->eeprompriv.CustomerID =
 502                                                 RT_CID_DEFAULT;
 503                                break;
 504                        }
 505                        dev_info(&udev->dev, "r8712u: CustomerID = 0x%.4x\n",
 506                                 padapter->eeprompriv.CustomerID);
 507                        /* Led mode */
 508                        switch (padapter->eeprompriv.CustomerID) {
 509                        case RT_CID_DEFAULT:
 510                        case RT_CID_819x_ALPHA:
 511                        case RT_CID_819x_CAMEO:
 512                                padapter->ledpriv.LedStrategy = SW_LED_MODE1;
 513                                padapter->ledpriv.bRegUseLed = true;
 514                                break;
 515                        case RT_CID_819x_Sitecom:
 516                                padapter->ledpriv.LedStrategy = SW_LED_MODE2;
 517                                padapter->ledpriv.bRegUseLed = true;
 518                                break;
 519                        case RT_CID_COREGA:
 520                        case RT_CID_819x_Senao:
 521                                padapter->ledpriv.LedStrategy = SW_LED_MODE3;
 522                                padapter->ledpriv.bRegUseLed = true;
 523                                break;
 524                        case RT_CID_819x_Edimax_Belkin:
 525                                padapter->ledpriv.LedStrategy = SW_LED_MODE4;
 526                                padapter->ledpriv.bRegUseLed = true;
 527                                break;
 528                        case RT_CID_819x_Sercomm_Belkin:
 529                                padapter->ledpriv.LedStrategy = SW_LED_MODE5;
 530                                padapter->ledpriv.bRegUseLed = true;
 531                                break;
 532                        case RT_CID_819x_WNC_COREGA:
 533                                padapter->ledpriv.LedStrategy = SW_LED_MODE6;
 534                                padapter->ledpriv.bRegUseLed = true;
 535                                break;
 536                        default:
 537                                padapter->ledpriv.LedStrategy = SW_LED_MODE0;
 538                                padapter->ledpriv.bRegUseLed = false;
 539                                break;
 540                        }
 541                } else {
 542                        AutoloadFail = false;
 543                }
 544                if (((mac[0] == 0xff) && (mac[1] == 0xff) &&
 545                     (mac[2] == 0xff) && (mac[3] == 0xff) &&
 546                     (mac[4] == 0xff) && (mac[5] == 0xff)) ||
 547                    ((mac[0] == 0x00) && (mac[1] == 0x00) &&
 548                     (mac[2] == 0x00) && (mac[3] == 0x00) &&
 549                     (mac[4] == 0x00) && (mac[5] == 0x00)) ||
 550                     (!AutoloadFail)) {
 551                        mac[0] = 0x00;
 552                        mac[1] = 0xe0;
 553                        mac[2] = 0x4c;
 554                        mac[3] = 0x87;
 555                        mac[4] = 0x00;
 556                        mac[5] = 0x00;
 557                }
 558                if (r8712_initmac) {
 559                        /* Make sure the user did not select a multicast
 560                         * address by setting bit 1 of first octet.
 561                         */
 562                        mac[0] &= 0xFE;
 563                        dev_info(&udev->dev,
 564                                "r8712u: MAC Address from user = %pM\n", mac);
 565                } else {
 566                        dev_info(&udev->dev,
 567                                "r8712u: MAC Address from efuse = %pM\n", mac);
 568                }
 569                ether_addr_copy(pnetdev->dev_addr, mac);
 570        }
 571        /* step 6. Load the firmware asynchronously */
 572        if (rtl871x_load_fw(padapter))
 573                goto error;
 574        spin_lock_init(&padapter->lock_rx_ff0_filter);
 575        mutex_init(&padapter->mutex_start);
 576        return 0;
 577error:
 578        usb_put_dev(udev);
 579        usb_set_intfdata(pusb_intf, NULL);
 580        if (padapter && padapter->dvobj_deinit != NULL)
 581                padapter->dvobj_deinit(padapter);
 582        if (pnetdev)
 583                free_netdev(pnetdev);
 584        return -ENODEV;
 585}
 586
 587/* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove()
 588 * => how to recognize both
 589 */
 590static void r871xu_dev_remove(struct usb_interface *pusb_intf)
 591{
 592        struct net_device *pnetdev = usb_get_intfdata(pusb_intf);
 593        struct usb_device *udev = interface_to_usbdev(pusb_intf);
 594
 595        if (pnetdev) {
 596                struct _adapter *padapter = netdev_priv(pnetdev);
 597
 598                /* never exit with a firmware callback pending */
 599                wait_for_completion(&padapter->rtl8712_fw_ready);
 600                pnetdev = usb_get_intfdata(pusb_intf);
 601                usb_set_intfdata(pusb_intf, NULL);
 602                if (!pnetdev)
 603                        goto firmware_load_fail;
 604                release_firmware(padapter->fw);
 605                if (drvpriv.drv_registered)
 606                        padapter->surprise_removed = true;
 607                if (pnetdev->reg_state != NETREG_UNINITIALIZED)
 608                        unregister_netdev(pnetdev); /* will call netdev_close() */
 609                flush_scheduled_work();
 610                udelay(1);
 611                /* Stop driver mlme relation timer */
 612                r8712_stop_drv_timers(padapter);
 613                r871x_dev_unload(padapter);
 614                r8712_free_drv_sw(padapter);
 615
 616                /* decrease the reference count of the usb device structure
 617                 * when disconnect
 618                 */
 619                usb_put_dev(udev);
 620        }
 621firmware_load_fail:
 622        /* If we didn't unplug usb dongle and remove/insert module, driver
 623         * fails on sitesurvey for the first time when device is up.
 624         * Reset usb port for sitesurvey fail issue.
 625         */
 626        if (udev->state != USB_STATE_NOTATTACHED)
 627                usb_reset_device(udev);
 628}
 629
 630static int __init r8712u_drv_entry(void)
 631{
 632        drvpriv.drv_registered = true;
 633        return usb_register(&drvpriv.r871xu_drv);
 634}
 635
 636static void __exit r8712u_drv_halt(void)
 637{
 638        drvpriv.drv_registered = false;
 639        usb_deregister(&drvpriv.r871xu_drv);
 640}
 641
 642module_init(r8712u_drv_entry);
 643module_exit(r8712u_drv_halt);
 644