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