drivers/staging/rt2860/usb_main_dev.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************/
  26
  27 #include "rt_config.h"
  28
  29 /* Following information will be show when you run 'modinfo' */
  30 /* *** If you have a solution for the bug in current version of driver, please mail to me. */
  31 /* Otherwise post to forum in ralinktech's web site(www.ralinktech.com) and let all users help you. *** */
  32 MODULE_AUTHOR("Paul Lin <paul_lin@ralinktech.com>");
  33 MODULE_DESCRIPTION("RT2870/RT3070 Wireless Lan Linux Driver");
  34 MODULE_LICENSE("GPL");
  35 #ifdef MODULE_VERSION
  36 MODULE_VERSION(STA_DRIVER_VERSION);
  37 #endif
  38
  39 /* module table */
  40 struct usb_device_id rtusb_usb_id[] = {
  41 #ifdef RT2870
  42         {USB_DEVICE(0x148F, 0x2770)},   /* Ralink */
  43         {USB_DEVICE(0x148F, 0x2870)},   /* Ralink */
  44         {USB_DEVICE(0x07B8, 0x2870)},   /* AboCom */
  45         {USB_DEVICE(0x07B8, 0x2770)},   /* AboCom */
  46         {USB_DEVICE(0x0DF6, 0x0039)},   /* Sitecom 2770 */
  47         {USB_DEVICE(0x083A, 0x7512)},   /* Arcadyan 2770 */
  48         {USB_DEVICE(0x0789, 0x0162)},   /* Logitec 2870 */
  49         {USB_DEVICE(0x0789, 0x0163)},   /* Logitec 2870 */
  50         {USB_DEVICE(0x0789, 0x0164)},   /* Logitec 2870 */
  51         {USB_DEVICE(0x177f, 0x0302)},   /* lsusb */
  52         {USB_DEVICE(0x0B05, 0x1731)},   /* Asus */
  53         {USB_DEVICE(0x0B05, 0x1732)},   /* Asus */
  54         {USB_DEVICE(0x0B05, 0x1742)},   /* Asus */
  55         {USB_DEVICE(0x0DF6, 0x0017)},   /* Sitecom */
  56         {USB_DEVICE(0x0DF6, 0x002B)},   /* Sitecom */
  57         {USB_DEVICE(0x0DF6, 0x002C)},   /* Sitecom */
  58         {USB_DEVICE(0x0DF6, 0x002D)},   /* Sitecom */
  59         {USB_DEVICE(0x14B2, 0x3C06)},   /* Conceptronic */
  60         {USB_DEVICE(0x14B2, 0x3C28)},   /* Conceptronic */
  61         {USB_DEVICE(0x2019, 0xED06)},   /* Planex Communications, Inc. */
  62         {USB_DEVICE(0x07D1, 0x3C09)},   /* D-Link */
  63         {USB_DEVICE(0x07D1, 0x3C11)},   /* D-Link */
  64         {USB_DEVICE(0x14B2, 0x3C07)},   /* AL */
  65         {USB_DEVICE(0x050D, 0x8053)},   /* Belkin */
  66         {USB_DEVICE(0x050D, 0x825B)},   /* Belkin */
  67         {USB_DEVICE(0x14B2, 0x3C23)},   /* Airlink */
  68         {USB_DEVICE(0x14B2, 0x3C27)},   /* Airlink */
  69         {USB_DEVICE(0x07AA, 0x002F)},   /* Corega */
  70         {USB_DEVICE(0x07AA, 0x003C)},   /* Corega */
  71         {USB_DEVICE(0x07AA, 0x003F)},   /* Corega */
  72         {USB_DEVICE(0x1044, 0x800B)},   /* Gigabyte */
  73         {USB_DEVICE(0x15A9, 0x0006)},   /* Sparklan */
  74         {USB_DEVICE(0x083A, 0xB522)},   /* SMC */
  75         {USB_DEVICE(0x083A, 0xA618)},   /* SMC */
  76         {USB_DEVICE(0x083A, 0x8522)},   /* Arcadyan */
  77         {USB_DEVICE(0x083A, 0x7522)},   /* Arcadyan */
  78         {USB_DEVICE(0x0CDE, 0x0022)},   /* ZCOM */
  79         {USB_DEVICE(0x0586, 0x3416)},   /* Zyxel */
  80         {USB_DEVICE(0x0CDE, 0x0025)},   /* Zyxel */
  81         {USB_DEVICE(0x1740, 0x9701)},   /* EnGenius */
  82         {USB_DEVICE(0x1740, 0x9702)},   /* EnGenius */
  83         {USB_DEVICE(0x0471, 0x200f)},   /* Philips */
  84         {USB_DEVICE(0x14B2, 0x3C25)},   /* Draytek */
  85         {USB_DEVICE(0x13D3, 0x3247)},   /* AzureWave */
  86         {USB_DEVICE(0x083A, 0x6618)},   /* Accton */
  87         {USB_DEVICE(0x15c5, 0x0008)},   /* Amit */
  88         {USB_DEVICE(0x0E66, 0x0001)},   /* Hawking */
  89         {USB_DEVICE(0x0E66, 0x0003)},   /* Hawking */
  90         {USB_DEVICE(0x129B, 0x1828)},   /* Siemens */
  91         {USB_DEVICE(0x157E, 0x300E)},   /* U-Media */
  92         {USB_DEVICE(0x050d, 0x805c)},
  93         {USB_DEVICE(0x050d, 0x815c)},
  94         {USB_DEVICE(0x1482, 0x3C09)},   /* Abocom */
  95         {USB_DEVICE(0x14B2, 0x3C09)},   /* Alpha */
  96         {USB_DEVICE(0x04E8, 0x2018)},   /* samsung */
  97         {USB_DEVICE(0x5A57, 0x0280)},   /* Zinwell */
  98         {USB_DEVICE(0x5A57, 0x0282)},   /* Zinwell */
  99         {USB_DEVICE(0x7392, 0x7718)},
 100         {USB_DEVICE(0x7392, 0x7717)},
 101         {USB_DEVICE(0x0411, 0x016f)},   /* MelCo.,Inc. WLI-UC-G301N */
 102         {USB_DEVICE(0x1737, 0x0070)},   /* Linksys WUSB100 */
 103         {USB_DEVICE(0x1737, 0x0071)},   /* Linksys WUSB600N */
 104         {USB_DEVICE(0x0411, 0x00e8)},   /* Buffalo WLI-UC-G300N */
 105         {USB_DEVICE(0x050d, 0x815c)},   /* Belkin F5D8053 */
 106 #endif /* RT2870 // */
 107 #ifdef RT3070
 108         {USB_DEVICE(0x148F, 0x3070)},   /* Ralink 3070 */
 109         {USB_DEVICE(0x148F, 0x3071)},   /* Ralink 3071 */
 110         {USB_DEVICE(0x148F, 0x3072)},   /* Ralink 3072 */
 111         {USB_DEVICE(0x0DB0, 0x3820)},   /* Ralink 3070 */
 112         {USB_DEVICE(0x0DF6, 0x003E)},   /* Sitecom 3070 */
 113         {USB_DEVICE(0x0DF6, 0x0042)},   /* Sitecom 3072 */
 114         {USB_DEVICE(0x14B2, 0x3C12)},   /* AL 3070 */
 115         {USB_DEVICE(0x18C5, 0x0012)},   /* Corega 3070 */
 116         {USB_DEVICE(0x083A, 0x7511)},   /* Arcadyan 3070 */
 117         {USB_DEVICE(0x1740, 0x9703)},   /* EnGenius 3070 */
 118         {USB_DEVICE(0x1740, 0x9705)},   /* EnGenius 3071 */
 119         {USB_DEVICE(0x1740, 0x9706)},   /* EnGenius 3072 */
 120         {USB_DEVICE(0x13D3, 0x3273)},   /* AzureWave 3070 */
 121         {USB_DEVICE(0x1044, 0x800D)},   /* Gigabyte GN-WB32L 3070 */
 122         {USB_DEVICE(0x2019, 0xAB25)},   /* Planex Communications, Inc. RT3070 */
 123         {USB_DEVICE(0x07B8, 0x3070)},   /* AboCom 3070 */
 124         {USB_DEVICE(0x07B8, 0x3071)},   /* AboCom 3071 */
 125         {USB_DEVICE(0x07B8, 0x3072)},   /* Abocom 3072 */
 126         {USB_DEVICE(0x7392, 0x7711)},   /* Edimax 3070 */
 127         {USB_DEVICE(0x1A32, 0x0304)},   /* Quanta 3070 */
 128         {USB_DEVICE(0x1EDA, 0x2310)},   /* AirTies 3070 */
 129         {USB_DEVICE(0x07D1, 0x3C0A)},   /* D-Link 3072 */
 130         {USB_DEVICE(0x07D1, 0x3C0D)},   /* D-Link 3070 */
 131         {USB_DEVICE(0x07D1, 0x3C0E)},   /* D-Link 3070 */
 132         {USB_DEVICE(0x07D1, 0x3C0F)},   /* D-Link 3070 */
 133         {USB_DEVICE(0x1D4D, 0x000C)},   /* Pegatron Corporation 3070 */
 134         {USB_DEVICE(0x1D4D, 0x000E)},   /* Pegatron Corporation 3070 */
 135         {USB_DEVICE(0x5A57, 0x5257)},   /* Zinwell 3070 */
 136         {USB_DEVICE(0x5A57, 0x0283)},   /* Zinwell 3072 */
 137         {USB_DEVICE(0x04BB, 0x0945)},   /* I-O DATA 3072 */
 138         {USB_DEVICE(0x203D, 0x1480)},   /* Encore 3070 */
 139 #endif /* RT3070 // */
 140         {USB_DEVICE(0x0DF6, 0x003F)},   /* Sitecom WL-608 */
 141         {USB_DEVICE(0x1737, 0x0077)},   /* Linksys WUSB54GC-EU v3 */
 142         {USB_DEVICE(0x2001, 0x3C09)},   /* D-Link */
 143         {USB_DEVICE(0x2001, 0x3C0A)},   /* D-Link 3072 */
 144         {USB_DEVICE(0x2019, 0xED14)},   /* Planex Communications, Inc. */
 145         {}                      /* Terminating entry */
 146 };
 147
 148 int const rtusb_usb_id_len =
 149     sizeof(rtusb_usb_id) / sizeof(struct usb_device_id);
 150
 151 MODULE_DEVICE_TABLE(usb, rtusb_usb_id);
 152
 153 static void rt2870_disconnect(struct usb_device *dev, struct rt_rtmp_adapter *pAd);
 154
 155 static int __devinit rt2870_probe(IN struct usb_interface *intf,
 156                                   IN struct usb_device *usb_dev,
 157                                   IN const struct usb_device_id *dev_id,
 158                                   struct rt_rtmp_adapter **ppAd);
 159
 160 #ifndef PF_NOFREEZE
 161 #define PF_NOFREEZE  0
 162 #endif
 163
 164 extern int rt28xx_close(IN struct net_device *net_dev);
 165 extern int rt28xx_open(struct net_device *net_dev);
 166
 167 static BOOLEAN USBDevConfigInit(IN struct usb_device *dev,
 168                                 IN struct usb_interface *intf,
 169                                 struct rt_rtmp_adapter *pAd);
 170
 171 /*
 172 ========================================================================
 173 Routine Description:
 174     Check the chipset vendor/product ID.
 175
 176 Arguments:
 177     _dev_p                              Point to the PCI or USB device
 178
 179 Return Value:
 180     TRUE                                Check ok
 181         FALSE                           Check fail
 182
 183 Note:
 184 ========================================================================
 185 */
 186 BOOLEAN RT28XXChipsetCheck(IN void *_dev_p)
 187 {
 188         struct usb_interface *intf = (struct usb_interface *)_dev_p;
 189         struct usb_device *dev_p = interface_to_usbdev(intf);
 190         u32 i;
 191
 192         for (i = 0; i < rtusb_usb_id_len; i++) {
 193                 if (dev_p->descriptor.idVendor == rtusb_usb_id[i].idVendor &&
 194                     dev_p->descriptor.idProduct == rtusb_usb_id[i].idProduct) {
 195                         printk("rt2870: idVendor = 0x%x, idProduct = 0x%x\n",
 196                                dev_p->descriptor.idVendor,
 197                                dev_p->descriptor.idProduct);
 198                         break;
 199                 }
 200         }
 201
 202         if (i == rtusb_usb_id_len) {
 203                 printk("rt2870: Error! Device Descriptor not matching!\n");
 204                 return FALSE;
 205         }
 206
 207         return TRUE;
 208 }
 209
 210 /**************************************************************************/
 211 /**************************************************************************/
 212 /*tested for kernel 2.6series */
 213 /**************************************************************************/
 214 /**************************************************************************/
 215
 216 #ifdef CONFIG_PM
 217 static int rt2870_suspend(struct usb_interface *intf, pm_message_t state);
 218 static int rt2870_resume(struct usb_interface *intf);
 219 #endif /* CONFIG_PM // */
 220
 221 static BOOLEAN USBDevConfigInit(IN struct usb_device *dev,
 222                                 IN struct usb_interface *intf,
 223                                 struct rt_rtmp_adapter *pAd)
 224 {
 225         struct usb_host_interface *iface_desc;
 226         unsigned long BulkOutIdx;
 227         u32 i;
 228
 229         /* get the active interface descriptor */
 230         iface_desc = intf->cur_altsetting;
 231
 232         /* get # of enpoints  */
 233         pAd->NumberOfPipes = iface_desc->desc.bNumEndpoints;
 234         DBGPRINT(RT_DEBUG_TRACE,
 235                  ("NumEndpoints=%d\n", iface_desc->desc.bNumEndpoints));
 236
 237         /* Configure Pipes */
 238         BulkOutIdx = 0;
 239
 240         for (i = 0; i < pAd->NumberOfPipes; i++) {
 241                 if ((iface_desc->endpoint[i].desc.bmAttributes ==
 242                      USB_ENDPOINT_XFER_BULK) &&
 243                     ((iface_desc->endpoint[i].desc.bEndpointAddress &
 244                       USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)) {
 245                         pAd->BulkInEpAddr =
 246                             iface_desc->endpoint[i].desc.bEndpointAddress;
 247                         pAd->BulkInMaxPacketSize =
 248                             le2cpu16(iface_desc->endpoint[i].desc.
 249                                      wMaxPacketSize);
 250
 251                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 252                                      ("BULK IN MaxPacketSize = %d\n",
 253                                       pAd->BulkInMaxPacketSize));
 254                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 255                                      ("EP address = 0x%2x\n",
 256                                       iface_desc->endpoint[i].desc.
 257                                       bEndpointAddress));
 258                 } else
 259                     if ((iface_desc->endpoint[i].desc.bmAttributes ==
 260                          USB_ENDPOINT_XFER_BULK)
 261                         &&
 262                         ((iface_desc->endpoint[i].desc.
 263                           bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
 264                          USB_DIR_OUT)) {
 265                         /* there are 6 bulk out EP. EP6 highest priority. */
 266                         /* EP1-4 is EDCA.  EP5 is HCCA. */
 267                         pAd->BulkOutEpAddr[BulkOutIdx++] =
 268                             iface_desc->endpoint[i].desc.bEndpointAddress;
 269                         pAd->BulkOutMaxPacketSize =
 270                             le2cpu16(iface_desc->endpoint[i].desc.
 271                                      wMaxPacketSize);
 272
 273                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 274                                      ("BULK OUT MaxPacketSize = %d\n",
 275                                       pAd->BulkOutMaxPacketSize));
 276                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 277                                      ("EP address = 0x%2x  \n",
 278                                       iface_desc->endpoint[i].desc.
 279                                       bEndpointAddress));
 280                 }
 281         }
 282
 283         if (!(pAd->BulkInEpAddr && pAd->BulkOutEpAddr[0])) {
 284                 printk
 285                     ("%s: Could not find both bulk-in and bulk-out endpoints\n",
 286                      __FUNCTION__);
 287                 return FALSE;
 288         }
 289
 290         pAd->config = &dev->config->desc;
 291         usb_set_intfdata(intf, pAd);
 292
 293         return TRUE;
 294
 295 }
 296
 297 static int __devinit rtusb_probe(struct usb_interface *intf,
 298                        const struct usb_device_id *id)
 299 {
 300         struct rt_rtmp_adapter *pAd;
 301         struct usb_device *dev;
 302         int rv;
 303
 304         dev = interface_to_usbdev(intf);
 305         dev = usb_get_dev(dev);
 306
 307         rv = rt2870_probe(intf, dev, id, &pAd);
 308         if (rv != 0)
 309                 usb_put_dev(dev);
 310
 311         return rv;
 312 }
 313
 314 static void rtusb_disconnect(struct usb_interface *intf)
 315 {
 316         struct usb_device *dev = interface_to_usbdev(intf);
 317         struct rt_rtmp_adapter *pAd;
 318
 319         pAd = usb_get_intfdata(intf);
 320         usb_set_intfdata(intf, NULL);
 321
 322         rt2870_disconnect(dev, pAd);
 323 }
 324
 325 struct usb_driver rtusb_driver = {
 326         .name = "rt2870",
 327         .probe = rtusb_probe,
 328         .disconnect = rtusb_disconnect,
 329         .id_table = rtusb_usb_id,
 330
 331 #ifdef CONFIG_PM
 332 suspend:rt2870_suspend,
 333 resume:rt2870_resume,
 334 #endif
 335 };
 336
 337 #ifdef CONFIG_PM
 338
 339 void RT2870RejectPendingPackets(struct rt_rtmp_adapter *pAd)
 340 {
 341         /* clear PS packets */
 342         /* clear TxSw packets */
 343 }
 344
 345 static int rt2870_suspend(struct usb_interface *intf, pm_message_t state)
 346 {
 347         struct net_device *net_dev;
 348         struct rt_rtmp_adapter *pAd = usb_get_intfdata(intf);
 349
 350         DBGPRINT(RT_DEBUG_TRACE, ("===> rt2870_suspend()\n"));
 351         net_dev = pAd->net_dev;
 352         netif_device_detach(net_dev);
 353
 354         pAd->PM_FlgSuspend = 1;
 355         if (netif_running(net_dev)) {
 356                 RTUSBCancelPendingBulkInIRP(pAd);
 357                 RTUSBCancelPendingBulkOutIRP(pAd);
 358         }
 359         DBGPRINT(RT_DEBUG_TRACE, ("<=== rt2870_suspend()\n"));
 360         return 0;
 361 }
 362
 363 static int rt2870_resume(struct usb_interface *intf)
 364 {
 365         struct net_device *net_dev;
 366         struct rt_rtmp_adapter *pAd = usb_get_intfdata(intf);
 367
 368         DBGPRINT(RT_DEBUG_TRACE, ("===> rt2870_resume()\n"));
 369
 370         pAd->PM_FlgSuspend = 0;
 371         net_dev = pAd->net_dev;
 372         netif_device_attach(net_dev);
 373         netif_start_queue(net_dev);
 374         netif_carrier_on(net_dev);
 375         netif_wake_queue(net_dev);
 376
 377         DBGPRINT(RT_DEBUG_TRACE, ("<=== rt2870_resume()\n"));
 378         return 0;
 379 }
 380 #endif /* CONFIG_PM // */
 381
 382 /* Init driver module */
 383 int __init rtusb_init(void)
 384 {
 385         printk("rtusb init --->\n");
 386         return usb_register(&rtusb_driver);
 387 }
 388
 389 /* Deinit driver module */
 390 void __exit rtusb_exit(void)
 391 {
 392         usb_deregister(&rtusb_driver);
 393         printk("<--- rtusb exit\n");
 394 }
 395
 396 module_init(rtusb_init);
 397 module_exit(rtusb_exit);
 398
 399 /*--------------------------------------------------------------------- */
 400 /* function declarations                                                                                                */
 401 /*--------------------------------------------------------------------- */
 402
 403 /*
 404 ========================================================================
 405 Routine Description:
 406     MLME kernel thread.
 407
 408 Arguments:
 409         *Context                        the pAd, driver control block pointer
 410
 411 Return Value:
 412     0                                   close the thread
 413
 414 Note:
 415 ========================================================================
 416 */
 417 int MlmeThread(IN void *Context)
 418 {
 419         struct rt_rtmp_adapter *pAd;
 420         struct rt_rtmp_os_task *pTask;
 421         int status;
 422         status = 0;
 423
 424         pTask = (struct rt_rtmp_os_task *)Context;
 425         pAd = (struct rt_rtmp_adapter *)pTask->priv;
 426
 427         RtmpOSTaskCustomize(pTask);
 428
 429         while (!pTask->task_killed) {
 430 #ifdef KTHREAD_SUPPORT
 431                 RTMP_WAIT_EVENT_INTERRUPTIBLE(pAd, pTask);
 432 #else
 433                 RTMP_SEM_EVENT_WAIT(&(pTask->taskSema), status);
 434
 435                 /* unlock the device pointers */
 436                 if (status != 0) {
 437                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 438                         break;
 439                 }
 440 #endif
 441
 442                 /* lock the device pointers , need to check if required */
 443                 /*down(&(pAd->usbdev_semaphore)); */
 444
 445                 if (!pAd->PM_FlgSuspend)
 446                         MlmeHandler(pAd);
 447         }
 448
 449         /* notify the exit routine that we're actually exiting now
 450          *
 451          * complete()/wait_for_completion() is similar to up()/down(),
 452          * except that complete() is safe in the case where the structure
 453          * is getting deleted in a parallel mode of execution (i.e. just
 454          * after the down() -- that's necessary for the thread-shutdown
 455          * case.
 456          *
 457          * complete_and_exit() goes even further than this -- it is safe in
 458          * the case that the thread of the caller is going away (not just
 459          * the structure) -- this is necessary for the module-remove case.
 460          * This is important in preemption kernels, which transfer the flow
 461          * of execution immediately upon a complete().
 462          */
 463         DBGPRINT(RT_DEBUG_TRACE, ("<---%s\n", __FUNCTION__));
 464 #ifndef KTHREAD_SUPPORT
 465         pTask->taskPID = THREAD_PID_INIT_VALUE;
 466         complete_and_exit(&pTask->taskComplete, 0);
 467 #endif
 468         return 0;
 469
 470 }
 471
 472 /*
 473 ========================================================================
 474 Routine Description:
 475     USB command kernel thread.
 476
 477 Arguments:
 478         *Context                        the pAd, driver control block pointer
 479
 480 Return Value:
 481     0                                   close the thread
 482
 483 Note:
 484 ========================================================================
 485 */
 486 int RTUSBCmdThread(IN void *Context)
 487 {
 488         struct rt_rtmp_adapter *pAd;
 489         struct rt_rtmp_os_task *pTask;
 490         int status;
 491         status = 0;
 492
 493         pTask = (struct rt_rtmp_os_task *)Context;
 494         pAd = (struct rt_rtmp_adapter *)pTask->priv;
 495
 496         RtmpOSTaskCustomize(pTask);
 497
 498         NdisAcquireSpinLock(&pAd->CmdQLock);
 499         pAd->CmdQ.CmdQState = RTMP_TASK_STAT_RUNNING;
 500         NdisReleaseSpinLock(&pAd->CmdQLock);
 501
 502         while (pAd && pAd->CmdQ.CmdQState == RTMP_TASK_STAT_RUNNING) {
 503 #ifdef KTHREAD_SUPPORT
 504                 RTMP_WAIT_EVENT_INTERRUPTIBLE(pAd, pTask);
 505 #else
 506                 /* lock the device pointers */
 507                 RTMP_SEM_EVENT_WAIT(&(pTask->taskSema), status);
 508
 509                 if (status != 0) {
 510                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 511                         break;
 512                 }
 513 #endif
 514
 515                 if (pAd->CmdQ.CmdQState == RTMP_TASK_STAT_STOPED)
 516                         break;
 517
 518                 if (!pAd->PM_FlgSuspend)
 519                         CMDHandler(pAd);
 520         }
 521
 522         if (pAd && !pAd->PM_FlgSuspend) {       /* Clear the CmdQElements. */
 523                 struct rt_cmdqelmt *pCmdQElmt = NULL;
 524
 525                 NdisAcquireSpinLock(&pAd->CmdQLock);
 526                 pAd->CmdQ.CmdQState = RTMP_TASK_STAT_STOPED;
 527                 while (pAd->CmdQ.size) {
 528                         RTUSBDequeueCmd(&pAd->CmdQ, &pCmdQElmt);
 529                         if (pCmdQElmt) {
 530                                 if (pCmdQElmt->CmdFromNdis == TRUE) {
 531                                         if (pCmdQElmt->buffer != NULL)
 532                                                 os_free_mem(pAd,
 533                                                             pCmdQElmt->buffer);
 534                                         os_free_mem(pAd, (u8 *)pCmdQElmt);
 535                                 } else {
 536                                         if ((pCmdQElmt->buffer != NULL)
 537                                             && (pCmdQElmt->bufferlength != 0))
 538                                                 os_free_mem(pAd,
 539                                                             pCmdQElmt->buffer);
 540                                         os_free_mem(pAd, (u8 *)pCmdQElmt);
 541                                 }
 542                         }
 543                 }
 544
 545                 NdisReleaseSpinLock(&pAd->CmdQLock);
 546         }
 547         /* notify the exit routine that we're actually exiting now
 548          *
 549          * complete()/wait_for_completion() is similar to up()/down(),
 550          * except that complete() is safe in the case where the structure
 551          * is getting deleted in a parallel mode of execution (i.e. just
 552          * after the down() -- that's necessary for the thread-shutdown
 553          * case.
 554          *
 555          * complete_and_exit() goes even further than this -- it is safe in
 556          * the case that the thread of the caller is going away (not just
 557          * the structure) -- this is necessary for the module-remove case.
 558          * This is important in preemption kernels, which transfer the flow
 559          * of execution immediately upon a complete().
 560          */
 561         DBGPRINT(RT_DEBUG_TRACE, ("<---RTUSBCmdThread\n"));
 562
 563 #ifndef KTHREAD_SUPPORT
 564         pTask->taskPID = THREAD_PID_INIT_VALUE;
 565         complete_and_exit(&pTask->taskComplete, 0);
 566 #endif
 567         return 0;
 568
 569 }
 570
 571 void RTUSBWatchDog(struct rt_rtmp_adapter *pAd)
 572 {
 573         struct rt_ht_tx_context *pHTTXContext;
 574         int idx;
 575         unsigned long irqFlags;
 576         PURB pUrb;
 577         BOOLEAN needDumpSeq = FALSE;
 578         u32 MACValue;
 579         u32 TxRxQ_Pcnt;
 580
 581         idx = 0;
 582         RTMP_IO_READ32(pAd, TXRXQ_PCNT, &MACValue);
 583         if ((MACValue & 0xff) != 0) {
 584                 DBGPRINT(RT_DEBUG_TRACE,
 585                          ("TX QUEUE 0 Not EMPTY(Value=0x%0x)!\n",
 586                           MACValue));
 587                 RTMP_IO_WRITE32(pAd, PBF_CFG, 0xf40012);
 588                 while ((MACValue & 0xff) != 0 && (idx++ < 10)) {
 589                         RTMP_IO_READ32(pAd, TXRXQ_PCNT, &MACValue);
 590                         RTMPusecDelay(1);
 591                 }
 592                 RTMP_IO_WRITE32(pAd, PBF_CFG, 0xf40006);
 593         }
 594
 595         if (pAd->watchDogRxOverFlowCnt >= 2) {
 596                 DBGPRINT(RT_DEBUG_TRACE,
 597                          ("Maybe the Rx Bulk-In hanged! Cancel the pending Rx bulks request!\n"));
 598                 if ((!RTMP_TEST_FLAG
 599                      (pAd,
 600                       (fRTMP_ADAPTER_RESET_IN_PROGRESS |
 601                        fRTMP_ADAPTER_BULKIN_RESET |
 602                        fRTMP_ADAPTER_HALT_IN_PROGRESS |
 603                        fRTMP_ADAPTER_NIC_NOT_EXIST)))) {
 604                         DBGPRINT(RT_DEBUG_TRACE,
 605                                  ("Call CMDTHREAD_RESET_BULK_IN to cancel the pending Rx Bulk!\n"));
 606                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_BULKIN_RESET);
 607                         RTUSBEnqueueInternalCmd(pAd, CMDTHREAD_RESET_BULK_IN,
 608                                                 NULL, 0);
 609                         needDumpSeq = TRUE;
 610                 }
 611                 pAd->watchDogRxOverFlowCnt = 0;
 612         }
 613
 614         RTUSBReadMACRegister(pAd, 0x438, &TxRxQ_Pcnt);
 615
 616         for (idx = 0; idx < NUM_OF_TX_RING; idx++) {
 617                 pUrb = NULL;
 618
 619                 RTMP_IRQ_LOCK(&pAd->BulkOutLock[idx], irqFlags);
 620                 if ((pAd->BulkOutPending[idx] == TRUE)
 621                     && pAd->watchDogTxPendingCnt) {
 622                         int actual_length = 0, transfer_buffer_length = 0;
 623                         BOOLEAN isDataPacket = FALSE;
 624                         pAd->watchDogTxPendingCnt[idx]++;
 625
 626                         if ((pAd->watchDogTxPendingCnt[idx] > 2) &&
 627                             (!RTMP_TEST_FLAG
 628                              (pAd,
 629                               (fRTMP_ADAPTER_RESET_IN_PROGRESS |
 630                                fRTMP_ADAPTER_HALT_IN_PROGRESS |
 631                                fRTMP_ADAPTER_NIC_NOT_EXIST |
 632                                fRTMP_ADAPTER_BULKOUT_RESET)))
 633                             ) {
 634                                 /* FIXME: Following code just support single bulk out. If you wanna support multiple bulk out. Modify it! */
 635                                 pHTTXContext =
 636                                     (struct rt_ht_tx_context *)(&pAd->TxContext[idx]);
 637                                 if (pHTTXContext->IRPPending) { /* Check TxContext. */
 638                                         pUrb = pHTTXContext->pUrb;
 639
 640                                         actual_length = pUrb->actual_length;
 641                                         transfer_buffer_length =
 642                                             pUrb->transfer_buffer_length;
 643                                         isDataPacket = TRUE;
 644                                 } else if (idx == MGMTPIPEIDX) {
 645                                         struct rt_tx_context *pMLMEContext, *pNULLContext,
 646                                             *pPsPollContext;
 647
 648                                         /*Check MgmtContext. */
 649                                         pMLMEContext =
 650                                             (struct rt_tx_context *)(pAd->MgmtRing.
 651                                                            Cell[pAd->MgmtRing.
 652                                                                 TxDmaIdx].
 653                                                            AllocVa);
 654                                         pPsPollContext =
 655                                             (struct rt_tx_context *)(&pAd->PsPollContext);
 656                                         pNULLContext =
 657                                             (struct rt_tx_context *)(&pAd->NullContext);
 658
 659                                         if (pMLMEContext->IRPPending) {
 660                                                 ASSERT(pMLMEContext->
 661                                                        IRPPending);
 662                                                 pUrb = pMLMEContext->pUrb;
 663                                         } else if (pNULLContext->IRPPending) {
 664                                                 ASSERT(pNULLContext->
 665                                                        IRPPending);
 666                                                 pUrb = pNULLContext->pUrb;
 667                                         } else if (pPsPollContext->IRPPending) {
 668                                                 ASSERT(pPsPollContext->
 669                                                        IRPPending);
 670                                                 pUrb = pPsPollContext->pUrb;
 671                                         }
 672                                 }
 673
 674                                 RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx],
 675                                                 irqFlags);
 676
 677                                 printk(KERN_INFO "%d:%lu LTL=%d , TL=%d L:%d\n",
 678                                        idx, pAd->watchDogTxPendingCnt[idx],
 679                                        pAd->TransferedLength[idx],
 680                                        actual_length, transfer_buffer_length);
 681
 682                                 if (pUrb) {
 683                                         if ((isDataPacket
 684                                              && pAd->TransferedLength[idx] ==
 685                                              actual_length
 686                                              && pAd->TransferedLength[idx] <
 687                                              transfer_buffer_length
 688                                              && actual_length != 0
 689 /*                                      && TxRxQ_Pcnt==0 */
 690                                              && pAd->watchDogTxPendingCnt[idx] >
 691                                              3)
 692                                             || isDataPacket == FALSE
 693                                             || pAd->watchDogTxPendingCnt[idx] >
 694                                             6) {
 695                                                 DBGPRINT(RT_DEBUG_TRACE,
 696                                                          ("Maybe the Tx Bulk-Out hanged! Cancel the pending Tx bulks request of idx(%d)!\n",
 697                                                           idx));
 698                                                 DBGPRINT(RT_DEBUG_TRACE,
 699                                                          ("Unlink the pending URB!\n"));
 700                                                 /* unlink it now */
 701                                                 RTUSB_UNLINK_URB(pUrb);
 702                                                 /* Sleep 200 microseconds to give cancellation time to work */
 703                                                 /*RTMPusecDelay(200); */
 704                                                 needDumpSeq = TRUE;
 705                                         }
 706                                 } else {
 707                                         DBGPRINT(RT_DEBUG_ERROR,
 708                                                  ("Unknown bulkOut URB maybe hanged!\n"));
 709                                 }
 710                         } else {
 711                                 RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx],
 712                                                 irqFlags);
 713                         }
 714
 715                         if (isDataPacket == TRUE)
 716                                 pAd->TransferedLength[idx] = actual_length;
 717                 } else {
 718                         RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx], irqFlags);
 719                 }
 720         }
 721
 722         /* For Sigma debug, dump the ba_reordering sequence. */
 723         if ((needDumpSeq == TRUE) && (pAd->CommonCfg.bDisableReordering == 0)) {
 724                 u16 Idx;
 725                 struct rt_ba_rec_entry *pBAEntry = NULL;
 726                 u8 count = 0;
 727                 struct reordering_mpdu *mpdu_blk;
 728
 729                 Idx = pAd->MacTab.Content[BSSID_WCID].BARecWcidArray[0];
 730
 731                 pBAEntry = &pAd->BATable.BARecEntry[Idx];
 732                 if ((pBAEntry->list.qlen > 0) && (pBAEntry->list.next != NULL)) {
 733                         DBGPRINT(RT_DEBUG_TRACE,
 734                                  ("NICUpdateRawCounters():The Queueing pkt in reordering buffer:\n"));
 735                         NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
 736                         mpdu_blk = pBAEntry->list.next;
 737                         while (mpdu_blk) {
 738                                 DBGPRINT(RT_DEBUG_TRACE,
 739                                          ("\t%d:Seq-%d, bAMSDU-%d!\n", count,
 740                                           mpdu_blk->Sequence,
 741                                           mpdu_blk->bAMSDU));
 742                                 mpdu_blk = mpdu_blk->next;
 743                                 count++;
 744                         }
 745
 746                         DBGPRINT(RT_DEBUG_TRACE,
 747                                  ("\npBAEntry->LastIndSeq=%d!\n",
 748                                   pBAEntry->LastIndSeq));
 749                         NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
 750                 }
 751         }
 752 }
 753
 754 /*
 755 ========================================================================
 756 Routine Description:
 757     Release allocated resources.
 758
 759 Arguments:
 760     *dev                                Point to the PCI or USB device
 761         pAd                                     driver control block pointer
 762
 763 Return Value:
 764     None
 765
 766 Note:
 767 ========================================================================
 768 */
 769 static void rt2870_disconnect(struct usb_device *dev, struct rt_rtmp_adapter *pAd)
 770 {
 771         DBGPRINT(RT_DEBUG_ERROR,
 772                  ("rtusb_disconnect: unregister usbnet usb-%s-%s\n",
 773                   dev->bus->bus_name, dev->devpath));
 774         if (!pAd) {
 775                 usb_put_dev(dev);
 776                 printk("rtusb_disconnect: pAd == NULL!\n");
 777                 return;
 778         }
 779         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST);
 780
 781         /* for debug, wait to show some messages to /proc system */
 782         udelay(1);
 783
 784         RtmpPhyNetDevExit(pAd, pAd->net_dev);
 785
 786         /* FIXME: Shall we need following delay and flush the schedule?? */
 787         udelay(1);
 788         flush_scheduled_work();
 789         udelay(1);
 790
 791         /* free the root net_device */
 792         RtmpOSNetDevFree(pAd->net_dev);
 793
 794         RtmpRaDevCtrlExit(pAd);
 795
 796         /* release a use of the usb device structure */
 797         usb_put_dev(dev);
 798         udelay(1);
 799
 800         DBGPRINT(RT_DEBUG_ERROR, (" RTUSB disconnect successfully\n"));
 801 }
 802
 803 static int __devinit rt2870_probe(IN struct usb_interface *intf,
 804                                   IN struct usb_device *usb_dev,
 805                                   IN const struct usb_device_id *dev_id,
 806                                   struct rt_rtmp_adapter **ppAd)
 807 {
 808         struct net_device *net_dev = NULL;
 809         struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)NULL;
 810         int status, rv;
 811         void *handle;
 812         struct rt_rtmp_os_netdev_op_hook netDevHook;
 813
 814         DBGPRINT(RT_DEBUG_TRACE, ("===>rt2870_probe()!\n"));
 815
 816         /* Check chipset vendor/product ID */
 817         /*if (RT28XXChipsetCheck(_dev_p) == FALSE) */
 818         /*      goto err_out; */
 819
 820 /*RtmpDevInit============================================= */
 821         /* Allocate struct rt_rtmp_adapter adapter structure */
 822         handle = kmalloc(sizeof(struct os_cookie), GFP_KERNEL);
 823         if (handle == NULL) {
 824                 printk
 825                     ("rt2870_probe(): Allocate memory for os handle failed!\n");
 826                 return -ENOMEM;
 827         }
 828         ((struct os_cookie *)handle)->pUsb_Dev = usb_dev;
 829
 830         rv = RTMPAllocAdapterBlock(handle, &pAd);
 831         if (rv != NDIS_STATUS_SUCCESS) {
 832                 kfree(handle);
 833                 goto err_out;
 834         }
 835 /*USBDevInit============================================== */
 836         if (USBDevConfigInit(usb_dev, intf, pAd) == FALSE)
 837                 goto err_out_free_radev;
 838
 839         RtmpRaDevCtrlInit(pAd, RTMP_DEV_INF_USB);
 840
 841 /*NetDevInit============================================== */
 842         net_dev = RtmpPhyNetDevInit(pAd, &netDevHook);
 843         if (net_dev == NULL)
 844                 goto err_out_free_radev;
 845
 846         /* Here are the net_device structure with usb specific parameters. */
 847         /* for supporting Network Manager.
 848          * Set the sysfs physical device reference for the network logical device if set prior to registration will
 849          * cause a symlink during initialization.
 850          */
 851         SET_NETDEV_DEV(net_dev, &(usb_dev->dev));
 852
 853         pAd->StaCfg.OriDevType = net_dev->type;
 854
 855 /*All done, it's time to register the net device to linux kernel. */
 856         /* Register this device */
 857         status = RtmpOSNetDevAttach(net_dev, &netDevHook);
 858         if (status != 0)
 859                 goto err_out_free_netdev;
 860
 861 #ifdef KTHREAD_SUPPORT
 862         init_waitqueue_head(&pAd->mlmeTask.kthread_q);
 863         init_waitqueue_head(&pAd->timerTask.kthread_q);
 864         init_waitqueue_head(&pAd->cmdQTask.kthread_q);
 865 #endif
 866
 867         *ppAd = pAd;
 868
 869         DBGPRINT(RT_DEBUG_TRACE, ("<===rt2870_probe()!\n"));
 870
 871         return 0;
 872
 873         /* --------------------------- ERROR HANDLE --------------------------- */
 874 err_out_free_netdev:
 875         RtmpOSNetDevFree(net_dev);
 876
 877 err_out_free_radev:
 878         RTMPFreeAdapter(pAd);
 879
 880 err_out:
 881         *ppAd = NULL;
 882
 883         return -1;
 884
 885 }