drivers/staging/rtl8723au/os_dep/usb_intf.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  ******************************************************************************/
  15 #define _HCI_INTF_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <recv_osdep.h>
  20 #include <xmit_osdep.h>
  21 #include <hal_intf.h>
  22 #include <rtw_version.h>
  23 #include <osdep_intf.h>
  24 #include <usb_ops.h>
  25 #include <rtl8723a_hal.h>
  26
  27 static int rtw_suspend(struct usb_interface *intf, pm_message_t message);
  28 static int rtw_resume(struct usb_interface *intf);
  29 static int rtw_drv_init(struct usb_interface *pusb_intf,
  30                         const struct usb_device_id *pdid);
  31 static void rtw_disconnect(struct usb_interface *pusb_intf);
  32
  33 #define USB_VENDER_ID_REALTEK           0x0BDA
  34
  35 #define RTL8723A_USB_IDS \
  36         {USB_DEVICE_AND_INTERFACE_INFO(USB_VENDER_ID_REALTEK, 0x8724,   \
  37          0xff, 0xff, 0xff)}, /* 8723AU 1*1 */ \
  38         {USB_DEVICE_AND_INTERFACE_INFO(USB_VENDER_ID_REALTEK, 0x1724,   \
  39          0xff, 0xff, 0xff)}, /* 8723AU 1*1 */ \
  40         {USB_DEVICE_AND_INTERFACE_INFO(USB_VENDER_ID_REALTEK, 0x0724,   \
  41          0xff, 0xff, 0xff)}, /* 8723AU 1*1 */
  42
  43 static struct usb_device_id rtl8723a_usb_id_tbl[] = {
  44         RTL8723A_USB_IDS
  45         {}      /* Terminating entry */
  46 };
  47
  48 MODULE_DEVICE_TABLE(usb, rtl8723a_usb_id_tbl);
  49
  50 static struct usb_driver rtl8723a_usb_drv = {
  51         .name = (char *)"rtl8723au",
  52         .probe = rtw_drv_init,
  53         .disconnect = rtw_disconnect,
  54         .id_table = rtl8723a_usb_id_tbl,
  55         .suspend = rtw_suspend,
  56         .resume = rtw_resume,
  57         .reset_resume  = rtw_resume,
  58 };
  59
  60 static struct usb_driver *usb_drv = &rtl8723a_usb_drv;
  61
  62 static inline int RT_usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd)
  63 {
  64         return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
  65 }
  66
  67 static inline int RT_usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd)
  68 {
  69         return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
  70 }
  71
  72 static inline int RT_usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
  73 {
  74         return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
  75 }
  76
  77 static int rtw_init_intf_priv(struct dvobj_priv *dvobj)
  78 {
  79         mutex_init(&dvobj->usb_vendor_req_mutex);
  80
  81         return _SUCCESS;
  82 }
  83
  84 static int rtw_deinit_intf_priv(struct dvobj_priv *dvobj)
  85 {
  86         mutex_destroy(&dvobj->usb_vendor_req_mutex);
  87
  88         return _SUCCESS;
  89 }
  90
  91 static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
  92 {
  93         struct dvobj_priv *pdvobjpriv;
  94         struct usb_host_config   *phost_conf;
  95         struct usb_config_descriptor *pconf_desc;
  96         struct usb_host_interface *phost_iface;
  97         struct usb_interface_descriptor *piface_desc;
  98         struct usb_host_endpoint *phost_endp;
  99         struct usb_endpoint_descriptor *pendp_desc;
 100         struct usb_device                *pusbd;
 101         int     i;
 102         int     status = _FAIL;
 103
 104         pdvobjpriv = kzalloc(sizeof(*pdvobjpriv), GFP_KERNEL);
 105         if (!pdvobjpriv)
 106                 goto exit;
 107
 108         mutex_init(&pdvobjpriv->hw_init_mutex);
 109         mutex_init(&pdvobjpriv->h2c_fwcmd_mutex);
 110         mutex_init(&pdvobjpriv->setch_mutex);
 111         mutex_init(&pdvobjpriv->setbw_mutex);
 112
 113         pdvobjpriv->pusbintf = usb_intf;
 114         pusbd = interface_to_usbdev(usb_intf);
 115         pdvobjpriv->pusbdev = pusbd;
 116         usb_set_intfdata(usb_intf, pdvobjpriv);
 117
 118         pdvobjpriv->RtNumInPipes = 0;
 119         pdvobjpriv->RtNumOutPipes = 0;
 120
 121         phost_conf = pusbd->actconfig;
 122         pconf_desc = &phost_conf->desc;
 123
 124         phost_iface = &usb_intf->altsetting[0];
 125         piface_desc = &phost_iface->desc;
 126
 127         pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces;
 128         pdvobjpriv->InterfaceNumber = piface_desc->bInterfaceNumber;
 129         pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints;
 130
 131         for (i = 0; i < pdvobjpriv->nr_endpoint; i++) {
 132                 phost_endp = phost_iface->endpoint + i;
 133                 if (phost_endp) {
 134                         pendp_desc = &phost_endp->desc;
 135
 136                         DBG_8723A("\nusb_endpoint_descriptor(%d):\n", i);
 137                         DBG_8723A("bLength =%x\n", pendp_desc->bLength);
 138                         DBG_8723A("bDescriptorType =%x\n",
 139                                   pendp_desc->bDescriptorType);
 140                         DBG_8723A("bEndpointAddress =%x\n",
 141                                   pendp_desc->bEndpointAddress);
 142                         DBG_8723A("wMaxPacketSize =%d\n",
 143                                   le16_to_cpu(pendp_desc->wMaxPacketSize));
 144                         DBG_8723A("bInterval =%x\n", pendp_desc->bInterval);
 145
 146                         if (RT_usb_endpoint_is_bulk_in(pendp_desc)) {
 147                                 DBG_8723A("RT_usb_endpoint_is_bulk_in = %x\n",
 148                                           usb_endpoint_num(pendp_desc));
 149                                 pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] =
 150                                         usb_endpoint_num(pendp_desc);
 151                                 pdvobjpriv->RtNumInPipes++;
 152                         } else if (RT_usb_endpoint_is_int_in(pendp_desc)) {
 153                                 DBG_8723A("RT_usb_endpoint_is_int_in = %x, Interval = %x\n",
 154                                           usb_endpoint_num(pendp_desc),
 155                                           pendp_desc->bInterval);
 156                                 pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] =
 157                                         usb_endpoint_num(pendp_desc);
 158                                 pdvobjpriv->RtNumInPipes++;
 159                         } else if (RT_usb_endpoint_is_bulk_out(pendp_desc)) {
 160                                 DBG_8723A("RT_usb_endpoint_is_bulk_out = %x\n",
 161                                           usb_endpoint_num(pendp_desc));
 162                                 pdvobjpriv->RtOutPipe[pdvobjpriv->RtNumOutPipes] =
 163                                         usb_endpoint_num(pendp_desc);
 164                                 pdvobjpriv->RtNumOutPipes++;
 165                         }
 166                         pdvobjpriv->ep_num[i] = usb_endpoint_num(pendp_desc);
 167                 }
 168         }
 169         DBG_8723A("nr_endpoint =%d, in_num =%d, out_num =%d\n\n",
 170                   pdvobjpriv->nr_endpoint, pdvobjpriv->RtNumInPipes,
 171                   pdvobjpriv->RtNumOutPipes);
 172
 173         if (pusbd->speed == USB_SPEED_HIGH) {
 174                 pdvobjpriv->ishighspeed = true;
 175                 DBG_8723A("USB_SPEED_HIGH\n");
 176         } else {
 177                 pdvobjpriv->ishighspeed = false;
 178                 DBG_8723A("NON USB_SPEED_HIGH\n");
 179         }
 180
 181         if (rtw_init_intf_priv(pdvobjpriv) == _FAIL) {
 182                 RT_TRACE(_module_os_intfs_c_, _drv_err_,
 183                          ("\n Can't INIT rtw_init_intf_priv\n"));
 184                 goto free_dvobj;
 185         }
 186         /* 3 misc */
 187         rtw_reset_continual_urb_error(pdvobjpriv);
 188         usb_get_dev(pusbd);
 189         status = _SUCCESS;
 190 free_dvobj:
 191         if (status != _SUCCESS && pdvobjpriv) {
 192                 usb_set_intfdata(usb_intf, NULL);
 193                 mutex_destroy(&pdvobjpriv->hw_init_mutex);
 194                 mutex_destroy(&pdvobjpriv->h2c_fwcmd_mutex);
 195                 mutex_destroy(&pdvobjpriv->setch_mutex);
 196                 mutex_destroy(&pdvobjpriv->setbw_mutex);
 197                 kfree(pdvobjpriv);
 198                 pdvobjpriv = NULL;
 199         }
 200 exit:
 201         return pdvobjpriv;
 202 }
 203
 204 static void usb_dvobj_deinit(struct usb_interface *usb_intf)
 205 {
 206         struct dvobj_priv *dvobj = usb_get_intfdata(usb_intf);
 207
 208         usb_set_intfdata(usb_intf, NULL);
 209         if (dvobj) {
 210                 /* Modify condition for 92DU DMDP 2010.11.18, by Thomas */
 211                 if ((dvobj->NumInterfaces != 2 && dvobj->NumInterfaces != 3) ||
 212                     (dvobj->InterfaceNumber == 1)) {
 213                         if (interface_to_usbdev(usb_intf)->state !=
 214                             USB_STATE_NOTATTACHED) {
 215                                 /* If we didn't unplug usb dongle and
 216                                  * remove/insert module, driver fails on
 217                                  * sitesurvey for the first time when
 218                                  * device is up .
 219                                  * Reset usb port for sitesurvey fail issue.
 220                                  */
 221                                 DBG_8723A("usb attached..., try to reset usb device\n");
 222                                 usb_reset_device(interface_to_usbdev(usb_intf));
 223                         }
 224                 }
 225                 rtw_deinit_intf_priv(dvobj);
 226                 mutex_destroy(&dvobj->hw_init_mutex);
 227                 mutex_destroy(&dvobj->h2c_fwcmd_mutex);
 228                 mutex_destroy(&dvobj->setch_mutex);
 229                 mutex_destroy(&dvobj->setbw_mutex);
 230                 kfree(dvobj);
 231         }
 232         usb_put_dev(interface_to_usbdev(usb_intf));
 233 }
 234
 235 void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter)
 236 {
 237         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n"));
 238
 239         /* disable_hw_interrupt */
 240         if (!padapter->bSurpriseRemoved) {
 241                 /* device still exists, so driver can do i/o operation
 242                  * TODO:
 243                  */
 244                 RT_TRACE(_module_hci_intfs_c_, _drv_err_,
 245                          ("SurpriseRemoved == false\n"));
 246         }
 247
 248         /* cancel in irp */
 249         rtl8723au_inirp_deinit(padapter);
 250
 251         /* cancel out irp */
 252         rtl8723au_write_port_cancel(padapter);
 253
 254         /* todo:cancel other irps */
 255         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_stop\n"));
 256 }
 257
 258 static void rtw_dev_unload(struct rtw_adapter *padapter)
 259 {
 260         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_dev_unload\n"));
 261
 262         if (padapter->bup) {
 263                 DBG_8723A("===> rtw_dev_unload\n");
 264
 265                 padapter->bDriverStopped = true;
 266                 if (padapter->xmitpriv.ack_tx)
 267                         rtw_ack_tx_done23a(&padapter->xmitpriv,
 268                                         RTW_SCTX_DONE_DRV_STOP);
 269
 270                 /* s3. */
 271                 rtl8723a_usb_intf_stop(padapter);
 272
 273                 /* s4. */
 274                 flush_workqueue(padapter->cmdpriv.wq);
 275
 276                 /* s5. */
 277                 if (!padapter->bSurpriseRemoved) {
 278                         rtl8723au_hal_deinit(padapter);
 279                         padapter->bSurpriseRemoved = true;
 280                 }
 281                 padapter->bup = false;
 282         } else {
 283                 RT_TRACE(_module_hci_intfs_c_, _drv_err_,
 284                          ("r871x_dev_unload():padapter->bup == false\n"));
 285         }
 286         DBG_8723A("<=== rtw_dev_unload\n");
 287         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-rtw_dev_unload\n"));
 288 }
 289
 290 int rtw_hw_suspend23a(struct rtw_adapter *padapter)
 291 {
 292         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 293         struct net_device *pnetdev = padapter->pnetdev;
 294         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 295
 296         if ((!padapter->bup) || (padapter->bDriverStopped) ||
 297             (padapter->bSurpriseRemoved)) {
 298                 DBG_8723A("padapter->bup =%d bDriverStopped =%d bSurpriseRemoved = %d\n",
 299                           padapter->bup, padapter->bDriverStopped,
 300                           padapter->bSurpriseRemoved);
 301                 goto error_exit;
 302         }
 303
 304         if (padapter) { /* system suspend */
 305                 LeaveAllPowerSaveMode23a(padapter);
 306
 307                 DBG_8723A("==> rtw_hw_suspend23a\n");
 308                 down(&pwrpriv->lock);
 309                 pwrpriv->bips_processing = true;
 310                 /* padapter->net_closed = true; */
 311                 /* s1. */
 312                 if (pnetdev) {
 313                         netif_carrier_off(pnetdev);
 314                         netif_tx_stop_all_queues(pnetdev);
 315                 }
 316
 317                 /* s2. */
 318                 rtw_disassoc_cmd23a(padapter, 500, false);
 319
 320                 /* s2-2.  indicate disconnect to os */
 321                 /* rtw_indicate_disconnect23a(padapter); */
 322                 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
 323                         _clr_fwstate_(pmlmepriv, _FW_LINKED);
 324
 325                         rtw_led_control(padapter, LED_CTL_NO_LINK);
 326
 327                         rtw_os_indicate_disconnect23a(padapter);
 328
 329                         /* donnot enqueue cmd */
 330                         rtw_lps_ctrl_wk_cmd23a(padapter,
 331                                                LPS_CTRL_DISCONNECT, 0);
 332                 }
 333                 /* s2-3. */
 334                 rtw_free_assoc_resources23a(padapter, 1);
 335
 336                 /* s2-4. */
 337                 rtw_free_network_queue23a(padapter);
 338                 rtw_ips_dev_unload23a(padapter);
 339                 pwrpriv->rf_pwrstate = rf_off;
 340                 pwrpriv->bips_processing = false;
 341                 up(&pwrpriv->lock);
 342         } else {
 343                 goto error_exit;
 344         }
 345         return 0;
 346 error_exit:
 347         DBG_8723A("%s, failed\n", __func__);
 348         return -1;
 349 }
 350
 351 int rtw_hw_resume23a(struct rtw_adapter *padapter)
 352 {
 353         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 354         struct net_device *pnetdev = padapter->pnetdev;
 355
 356         if (padapter) { /* system resume */
 357                 DBG_8723A("==> rtw_hw_resume23a\n");
 358                 down(&pwrpriv->lock);
 359                 pwrpriv->bips_processing = true;
 360                 rtw_reset_drv_sw23a(padapter);
 361
 362                 if (pm_netdev_open23a(pnetdev, false)) {
 363                         up(&pwrpriv->lock);
 364                         goto error_exit;
 365                 }
 366
 367                 netif_device_attach(pnetdev);
 368                 netif_carrier_on(pnetdev);
 369
 370                 if (!rtw_netif_queue_stopped(pnetdev))
 371                         netif_tx_start_all_queues(pnetdev);
 372                 else
 373                         netif_tx_wake_all_queues(pnetdev);
 374
 375                 pwrpriv->bkeepfwalive = false;
 376
 377                 pwrpriv->rf_pwrstate = rf_on;
 378                 pwrpriv->bips_processing = false;
 379
 380                 up(&pwrpriv->lock);
 381         } else {
 382                 goto error_exit;
 383         }
 384         return 0;
 385 error_exit:
 386         DBG_8723A("%s, Open net dev failed\n", __func__);
 387         return -1;
 388 }
 389
 390 static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message)
 391 {
 392         struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
 393         struct rtw_adapter *padapter = dvobj->if1;
 394         struct net_device *pnetdev = padapter->pnetdev;
 395         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 396         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 397         int ret = 0;
 398         unsigned long start_time = jiffies;
 399
 400         DBG_8723A("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
 401
 402         if ((!padapter->bup) || (padapter->bDriverStopped) ||
 403             (padapter->bSurpriseRemoved)) {
 404                 DBG_8723A("padapter->bup =%d bDriverStopped =%d bSurpriseRemoved = %d\n",
 405                           padapter->bup, padapter->bDriverStopped,
 406                           padapter->bSurpriseRemoved);
 407                 goto exit;
 408         }
 409         pwrpriv->bInSuspend = true;
 410         rtw_cancel_all_timer23a(padapter);
 411         LeaveAllPowerSaveMode23a(padapter);
 412
 413         down(&pwrpriv->lock);
 414         /* padapter->net_closed = true; */
 415         /* s1. */
 416         if (pnetdev) {
 417                 netif_carrier_off(pnetdev);
 418                 netif_tx_stop_all_queues(pnetdev);
 419         }
 420
 421         /* s2. */
 422         rtw_disassoc_cmd23a(padapter, 0, false);
 423
 424         if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) &&
 425             check_fwstate(pmlmepriv, _FW_LINKED)) {
 426                 DBG_8723A("%s:%d %s(%pM), length:%d assoc_ssid.length:%d\n",
 427                           __func__, __LINE__,
 428                           pmlmepriv->cur_network.network.Ssid.ssid,
 429                           pmlmepriv->cur_network.network.MacAddress,
 430                           pmlmepriv->cur_network.network.Ssid.ssid_len,
 431                           pmlmepriv->assoc_ssid.ssid_len);
 432
 433                 rtw_set_roaming(padapter, 1);
 434         }
 435         /* s2-2.  indicate disconnect to os */
 436         rtw_indicate_disconnect23a(padapter);
 437         /* s2-3. */
 438         rtw_free_assoc_resources23a(padapter, 1);
 439         /* s2-4. */
 440         rtw_free_network_queue23a(padapter);
 441
 442         rtw_dev_unload(padapter);
 443         up(&pwrpriv->lock);
 444
 445         if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
 446                 rtw_cfg80211_indicate_scan_done(
 447                         wdev_to_priv(padapter->rtw_wdev), true);
 448
 449         if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
 450                 rtw_indicate_disconnect23a(padapter);
 451
 452 exit:
 453         DBG_8723A("<===  %s return %d.............. in %dms\n", __func__,
 454                   ret, jiffies_to_msecs(jiffies - start_time));
 455
 456         return ret;
 457 }
 458
 459 static int rtw_resume(struct usb_interface *pusb_intf)
 460 {
 461         struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
 462         struct rtw_adapter *padapter = dvobj->if1;
 463         struct net_device *pnetdev;
 464         struct pwrctrl_priv *pwrpriv = NULL;
 465         int ret = -1;
 466         unsigned long start_time = jiffies;
 467
 468         DBG_8723A("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
 469
 470         if (!padapter)
 471                 goto exit;
 472         pnetdev = padapter->pnetdev;
 473         pwrpriv = &padapter->pwrctrlpriv;
 474
 475         down(&pwrpriv->lock);
 476         rtw_reset_drv_sw23a(padapter);
 477         pwrpriv->bkeepfwalive = false;
 478
 479         DBG_8723A("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive);
 480         if (pm_netdev_open23a(pnetdev, true) != 0) {
 481                 up(&pwrpriv->lock);
 482                 goto exit;
 483         }
 484
 485         netif_device_attach(pnetdev);
 486         netif_carrier_on(pnetdev);
 487
 488         up(&pwrpriv->lock);
 489
 490         if (padapter->pid[1] != 0) {
 491                 DBG_8723A("pid[1]:%d\n", padapter->pid[1]);
 492                 kill_pid(find_vpid(padapter->pid[1]), SIGUSR2, 1);
 493         }
 494
 495         rtw23a_roaming(padapter, NULL);
 496
 497         ret = 0;
 498 exit:
 499         if (pwrpriv)
 500                 pwrpriv->bInSuspend = false;
 501         DBG_8723A("<===  %s return %d.............. in %dms\n", __func__,
 502                   ret, jiffies_to_msecs(jiffies - start_time));
 503
 504         return ret;
 505 }
 506
 507 /*
 508  * drv_init() - a device potentially for us
 509  *
 510  * notes: drv_init() is called when the bus driver has located a card
 511  * for us to support.
 512  *        We accept the new device by returning 0.
 513  */
 514 static struct rtw_adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
 515                                             struct usb_interface *pusb_intf,
 516                                             const struct usb_device_id *pdid)
 517 {
 518         struct rtw_adapter *padapter = NULL;
 519         struct net_device *pnetdev = NULL;
 520         int status = _FAIL;
 521
 522         pnetdev = rtw_init_netdev23a(padapter);
 523         if (!pnetdev)
 524                 goto free_adapter;
 525         padapter = netdev_priv(pnetdev);
 526
 527         padapter->dvobj = dvobj;
 528         padapter->bDriverStopped = true;
 529         dvobj->if1 = padapter;
 530         dvobj->padapters[dvobj->iface_nums++] = padapter;
 531         padapter->iface_id = IFACE_ID0;
 532
 533         rtl8723au_set_hw_type(padapter);
 534
 535         SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj));
 536
 537         if (rtw_wdev_alloc(padapter, dvobj_to_dev(dvobj)))
 538                 goto free_adapter;
 539
 540         /* step 2. allocate HalData */
 541         padapter->HalData = kzalloc(sizeof(struct hal_data_8723a), GFP_KERNEL);
 542         if (!padapter->HalData)
 543                 goto free_wdev;
 544
 545         /* step read_chip_version */
 546         rtl8723a_read_chip_version(padapter);
 547
 548         /* step usb endpoint mapping */
 549         rtl8723au_chip_configure(padapter);
 550
 551         /* step read efuse/eeprom data and get mac_addr */
 552         rtl8723a_read_adapter_info(padapter);
 553
 554         /* step 5. */
 555         if (rtw_init_drv_sw23a(padapter) == _FAIL) {
 556                 RT_TRACE(_module_hci_intfs_c_, _drv_err_,
 557                          ("Initialize driver software resource Failed!\n"));
 558                 goto free_hal_data;
 559         }
 560
 561 #ifdef CONFIG_PM
 562         if (padapter->pwrctrlpriv.bSupportRemoteWakeup) {
 563                 dvobj->pusbdev->do_remote_wakeup = 1;
 564                 pusb_intf->needs_remote_wakeup = 1;
 565                 device_init_wakeup(&pusb_intf->dev, 1);
 566                 DBG_8723A("\n  padapter->pwrctrlpriv.bSupportRemoteWakeup~~~~~~\n");
 567                 DBG_8723A("\n  padapter->pwrctrlpriv.bSupportRemoteWakeup~~~[%d]~~~\n",
 568                           device_may_wakeup(&pusb_intf->dev));
 569         }
 570 #endif
 571         /* 2012-07-11 Move here to prevent the 8723AS-VAU BT
 572          * auto suspend influence
 573          */
 574         if (usb_autopm_get_interface(pusb_intf) < 0)
 575                 DBG_8723A("can't get autopm:\n");
 576 #ifdef  CONFIG_8723AU_BT_COEXIST
 577         padapter->pwrctrlpriv.autopm_cnt = 1;
 578 #endif
 579
 580         /* If the eeprom mac address is corrupted, assign a random address */
 581         if (is_broadcast_ether_addr(padapter->eeprompriv.mac_addr) ||
 582             is_zero_ether_addr(padapter->eeprompriv.mac_addr))
 583                 eth_random_addr(padapter->eeprompriv.mac_addr);
 584
 585         DBG_8723A("bDriverStopped:%d, bSurpriseRemoved:%d, bup:%d, hw_init_completed:%d\n",
 586                   padapter->bDriverStopped, padapter->bSurpriseRemoved,
 587                   padapter->bup, padapter->hw_init_completed
 588         );
 589         status = _SUCCESS;
 590
 591 free_hal_data:
 592         if (status != _SUCCESS)
 593                 kfree(padapter->HalData);
 594 free_wdev:
 595         if (status != _SUCCESS) {
 596                 rtw_wdev_unregister(padapter->rtw_wdev);
 597                 rtw_wdev_free(padapter->rtw_wdev);
 598         }
 599 free_adapter:
 600         if (status != _SUCCESS) {
 601                 if (pnetdev)
 602                         free_netdev(pnetdev);
 603                 padapter = NULL;
 604         }
 605         return padapter;
 606 }
 607
 608 static void rtw_usb_if1_deinit(struct rtw_adapter *if1)
 609 {
 610         struct net_device *pnetdev = if1->pnetdev;
 611         struct mlme_priv *pmlmepriv = &if1->mlmepriv;
 612
 613         if (check_fwstate(pmlmepriv, _FW_LINKED))
 614                 rtw_disassoc_cmd23a(if1, 0, false);
 615
 616 #ifdef CONFIG_8723AU_AP_MODE
 617         free_mlme_ap_info23a(if1);
 618 #endif
 619
 620         if (pnetdev)
 621                 unregister_netdev(pnetdev); /* will call netdev_close() */
 622
 623         rtw_cancel_all_timer23a(if1);
 624
 625         rtw_dev_unload(if1);
 626
 627         DBG_8723A("+r871xu_dev_remove, hw_init_completed =%d\n",
 628                   if1->hw_init_completed);
 629
 630         if (if1->rtw_wdev) {
 631                 rtw_wdev_unregister(if1->rtw_wdev);
 632                 rtw_wdev_free(if1->rtw_wdev);
 633         }
 634
 635 #ifdef CONFIG_8723AU_BT_COEXIST
 636         if (1 == if1->pwrctrlpriv.autopm_cnt) {
 637                 usb_autopm_put_interface(adapter_to_dvobj(if1)->pusbintf);
 638                 if1->pwrctrlpriv.autopm_cnt--;
 639         }
 640 #endif
 641
 642         rtw_free_drv_sw23a(if1);
 643
 644         if (pnetdev)
 645                 free_netdev(pnetdev);
 646 }
 647
 648 static int rtw_drv_init(struct usb_interface *pusb_intf,
 649                         const struct usb_device_id *pdid)
 650 {
 651         struct rtw_adapter *if1 = NULL;
 652         struct dvobj_priv *dvobj;
 653         int status = _FAIL;
 654
 655         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_init\n"));
 656
 657         /* Initialize dvobj_priv */
 658         dvobj = usb_dvobj_init(pusb_intf);
 659         if (!dvobj) {
 660                 RT_TRACE(_module_hci_intfs_c_, _drv_err_,
 661                          ("initialize device object priv Failed!\n"));
 662                 goto exit;
 663         }
 664
 665         if1 = rtw_usb_if1_init(dvobj, pusb_intf, pdid);
 666         if (!if1) {
 667                 DBG_8723A("rtw_init_primary_adapter Failed!\n");
 668                 goto free_dvobj;
 669         }
 670
 671         /* dev_alloc_name && register_netdev */
 672         status = rtw_drv_register_netdev(if1);
 673         if (status != _SUCCESS)
 674                 goto free_if1;
 675         RT_TRACE(_module_hci_intfs_c_, _drv_err_,
 676                  ("-871x_drv - drv_init, success!\n"));
 677
 678         status = _SUCCESS;
 679
 680 free_if1:
 681         if (status != _SUCCESS && if1)
 682                 rtw_usb_if1_deinit(if1);
 683 free_dvobj:
 684         if (status != _SUCCESS)
 685                 usb_dvobj_deinit(pusb_intf);
 686 exit:
 687         return status == _SUCCESS ? 0 : -ENODEV;
 688 }
 689
 690 /* dev_remove() - our device is being removed */
 691 static void rtw_disconnect(struct usb_interface *pusb_intf)
 692 {
 693         struct dvobj_priv *dvobj;
 694         struct rtw_adapter *padapter;
 695         struct net_device *pnetdev;
 696         struct mlme_priv *pmlmepriv;
 697
 698         dvobj = usb_get_intfdata(pusb_intf);
 699         if (!dvobj)
 700                 return;
 701
 702         padapter = dvobj->if1;
 703         pnetdev = padapter->pnetdev;
 704         pmlmepriv = &padapter->mlmepriv;
 705
 706         usb_set_intfdata(pusb_intf, NULL);
 707
 708         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+dev_remove()\n"));
 709
 710         rtw_pm_set_ips23a(padapter, IPS_NONE);
 711         rtw_pm_set_lps23a(padapter, PS_MODE_ACTIVE);
 712
 713         LeaveAllPowerSaveMode23a(padapter);
 714
 715         rtw_usb_if1_deinit(padapter);
 716
 717         usb_dvobj_deinit(pusb_intf);
 718
 719         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-dev_remove()\n"));
 720         DBG_8723A("-r871xu_dev_remove, done\n");
 721
 722         return;
 723 }
 724
 725 static int __init rtw_drv_entry(void)
 726 {
 727         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_entry\n"));
 728         return usb_register(usb_drv);
 729 }
 730
 731 static void __exit rtw_drv_halt(void)
 732 {
 733         RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_halt\n"));
 734         DBG_8723A("+rtw_drv_halt\n");
 735
 736         usb_deregister(usb_drv);
 737
 738         DBG_8723A("-rtw_drv_halt\n");
 739 }
 740
 741 module_init(rtw_drv_entry);
 742 module_exit(rtw_drv_halt);