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