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 int rtusb_probe(struct usb_interface *intf,
 220                        const struct usb_device_id *id);
 221 static void rtusb_disconnect(struct usb_interface *intf);
 222
 223 static BOOLEAN USBDevConfigInit(IN struct usb_device *dev,
 224                                 IN struct usb_interface *intf,
 225                                 struct rt_rtmp_adapter *pAd)
 226 {
 227         struct usb_host_interface *iface_desc;
 228         unsigned long BulkOutIdx;
 229         u32 i;
 230
 231         /* get the active interface descriptor */
 232         iface_desc = intf->cur_altsetting;
 233
 234         /* get # of enpoints  */
 235         pAd->NumberOfPipes = iface_desc->desc.bNumEndpoints;
 236         DBGPRINT(RT_DEBUG_TRACE,
 237                  ("NumEndpoints=%d\n", iface_desc->desc.bNumEndpoints));
 238
 239         /* Configure Pipes */
 240         BulkOutIdx = 0;
 241
 242         for (i = 0; i < pAd->NumberOfPipes; i++) {
 243                 if ((iface_desc->endpoint[i].desc.bmAttributes ==
 244                      USB_ENDPOINT_XFER_BULK) &&
 245                     ((iface_desc->endpoint[i].desc.bEndpointAddress &
 246                       USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)) {
 247                         pAd->BulkInEpAddr =
 248                             iface_desc->endpoint[i].desc.bEndpointAddress;
 249                         pAd->BulkInMaxPacketSize =
 250                             le2cpu16(iface_desc->endpoint[i].desc.
 251                                      wMaxPacketSize);
 252
 253                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 254                                      ("BULK IN MaxPacketSize = %d\n",
 255                                       pAd->BulkInMaxPacketSize));
 256                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 257                                      ("EP address = 0x%2x\n",
 258                                       iface_desc->endpoint[i].desc.
 259                                       bEndpointAddress));
 260                 } else
 261                     if ((iface_desc->endpoint[i].desc.bmAttributes ==
 262                          USB_ENDPOINT_XFER_BULK)
 263                         &&
 264                         ((iface_desc->endpoint[i].desc.
 265                           bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
 266                          USB_DIR_OUT)) {
 267                         /* there are 6 bulk out EP. EP6 highest priority. */
 268                         /* EP1-4 is EDCA.  EP5 is HCCA. */
 269                         pAd->BulkOutEpAddr[BulkOutIdx++] =
 270                             iface_desc->endpoint[i].desc.bEndpointAddress;
 271                         pAd->BulkOutMaxPacketSize =
 272                             le2cpu16(iface_desc->endpoint[i].desc.
 273                                      wMaxPacketSize);
 274
 275                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 276                                      ("BULK OUT MaxPacketSize = %d\n",
 277                                       pAd->BulkOutMaxPacketSize));
 278                         DBGPRINT_RAW(RT_DEBUG_TRACE,
 279                                      ("EP address = 0x%2x  \n",
 280                                       iface_desc->endpoint[i].desc.
 281                                       bEndpointAddress));
 282                 }
 283         }
 284
 285         if (!(pAd->BulkInEpAddr && pAd->BulkOutEpAddr[0])) {
 286                 printk
 287                     ("%s: Could not find both bulk-in and bulk-out endpoints\n",
 288                      __FUNCTION__);
 289                 return FALSE;
 290         }
 291
 292         pAd->config = &dev->config->desc;
 293         usb_set_intfdata(intf, pAd);
 294
 295         return TRUE;
 296
 297 }
 298
 299 static int rtusb_probe(struct usb_interface *intf,
 300                        const struct usb_device_id *id)
 301 {
 302         struct rt_rtmp_adapter *pAd;
 303         struct usb_device *dev;
 304         int rv;
 305
 306         dev = interface_to_usbdev(intf);
 307         dev = usb_get_dev(dev);
 308
 309         rv = rt2870_probe(intf, dev, id, &pAd);
 310         if (rv != 0)
 311                 usb_put_dev(dev);
 312
 313         return rv;
 314 }
 315
 316 static void rtusb_disconnect(struct usb_interface *intf)
 317 {
 318         struct usb_device *dev = interface_to_usbdev(intf);
 319         struct rt_rtmp_adapter *pAd;
 320
 321         pAd = usb_get_intfdata(intf);
 322         usb_set_intfdata(intf, NULL);
 323
 324         rt2870_disconnect(dev, pAd);
 325 }
 326
 327 struct usb_driver rtusb_driver = {
 328         .name = "rt2870",
 329         .probe = rtusb_probe,
 330         .disconnect = rtusb_disconnect,
 331         .id_table = rtusb_usb_id,
 332
 333 #ifdef CONFIG_PM
 334 suspend:rt2870_suspend,
 335 resume:rt2870_resume,
 336 #endif
 337 };
 338
 339 #ifdef CONFIG_PM
 340
 341 void RT2870RejectPendingPackets(struct rt_rtmp_adapter *pAd)
 342 {
 343         /* clear PS packets */
 344         /* clear TxSw packets */
 345 }
 346
 347 static int rt2870_suspend(struct usb_interface *intf, pm_message_t state)
 348 {
 349         struct net_device *net_dev;
 350         struct rt_rtmp_adapter *pAd = usb_get_intfdata(intf);
 351
 352         DBGPRINT(RT_DEBUG_TRACE, ("===> rt2870_suspend()\n"));
 353         net_dev = pAd->net_dev;
 354         netif_device_detach(net_dev);
 355
 356         pAd->PM_FlgSuspend = 1;
 357         if (netif_running(net_dev)) {
 358                 RTUSBCancelPendingBulkInIRP(pAd);
 359                 RTUSBCancelPendingBulkOutIRP(pAd);
 360         }
 361         DBGPRINT(RT_DEBUG_TRACE, ("<=== rt2870_suspend()\n"));
 362         return 0;
 363 }
 364
 365 static int rt2870_resume(struct usb_interface *intf)
 366 {
 367         struct net_device *net_dev;
 368         struct rt_rtmp_adapter *pAd = usb_get_intfdata(intf);
 369
 370         DBGPRINT(RT_DEBUG_TRACE, ("===> rt2870_resume()\n"));
 371
 372         pAd->PM_FlgSuspend = 0;
 373         net_dev = pAd->net_dev;
 374         netif_device_attach(net_dev);
 375         netif_start_queue(net_dev);
 376         netif_carrier_on(net_dev);
 377         netif_wake_queue(net_dev);
 378
 379         DBGPRINT(RT_DEBUG_TRACE, ("<=== rt2870_resume()\n"));
 380         return 0;
 381 }
 382 #endif /* CONFIG_PM // */
 383
 384 /* Init driver module */
 385 int __init rtusb_init(void)
 386 {
 387         printk("rtusb init --->\n");
 388         return usb_register(&rtusb_driver);
 389 }
 390
 391 /* Deinit driver module */
 392 void __exit rtusb_exit(void)
 393 {
 394         usb_deregister(&rtusb_driver);
 395         printk("<--- rtusb exit\n");
 396 }
 397
 398 module_init(rtusb_init);
 399 module_exit(rtusb_exit);
 400
 401 /*--------------------------------------------------------------------- */
 402 /* function declarations                                                                                                */
 403 /*--------------------------------------------------------------------- */
 404
 405 /*
 406 ========================================================================
 407 Routine Description:
 408     MLME kernel thread.
 409
 410 Arguments:
 411         *Context                        the pAd, driver control block pointer
 412
 413 Return Value:
 414     0                                   close the thread
 415
 416 Note:
 417 ========================================================================
 418 */
 419 int MlmeThread(IN void *Context)
 420 {
 421         struct rt_rtmp_adapter *pAd;
 422         struct rt_rtmp_os_task *pTask;
 423         int status;
 424         status = 0;
 425
 426         pTask = (struct rt_rtmp_os_task *)Context;
 427         pAd = (struct rt_rtmp_adapter *)pTask->priv;
 428
 429         RtmpOSTaskCustomize(pTask);
 430
 431         while (!pTask->task_killed) {
 432 #ifdef KTHREAD_SUPPORT
 433                 RTMP_WAIT_EVENT_INTERRUPTIBLE(pAd, pTask);
 434 #else
 435                 RTMP_SEM_EVENT_WAIT(&(pTask->taskSema), status);
 436
 437                 /* unlock the device pointers */
 438                 if (status != 0) {
 439                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 440                         break;
 441                 }
 442 #endif
 443
 444                 /* lock the device pointers , need to check if required */
 445                 /*down(&(pAd->usbdev_semaphore)); */
 446
 447                 if (!pAd->PM_FlgSuspend)
 448                         MlmeHandler(pAd);
 449         }
 450
 451         /* notify the exit routine that we're actually exiting now
 452          *
 453          * complete()/wait_for_completion() is similar to up()/down(),
 454          * except that complete() is safe in the case where the structure
 455          * is getting deleted in a parallel mode of execution (i.e. just
 456          * after the down() -- that's necessary for the thread-shutdown
 457          * case.
 458          *
 459          * complete_and_exit() goes even further than this -- it is safe in
 460          * the case that the thread of the caller is going away (not just
 461          * the structure) -- this is necessary for the module-remove case.
 462          * This is important in preemption kernels, which transfer the flow
 463          * of execution immediately upon a complete().
 464          */
 465         DBGPRINT(RT_DEBUG_TRACE, ("<---%s\n", __FUNCTION__));
 466 #ifndef KTHREAD_SUPPORT
 467         pTask->taskPID = THREAD_PID_INIT_VALUE;
 468         complete_and_exit(&pTask->taskComplete, 0);
 469 #endif
 470         return 0;
 471
 472 }
 473
 474 /*
 475 ========================================================================
 476 Routine Description:
 477     USB command kernel thread.
 478
 479 Arguments:
 480         *Context                        the pAd, driver control block pointer
 481
 482 Return Value:
 483     0                                   close the thread
 484
 485 Note:
 486 ========================================================================
 487 */
 488 int RTUSBCmdThread(IN void *Context)
 489 {
 490         struct rt_rtmp_adapter *pAd;
 491         struct rt_rtmp_os_task *pTask;
 492         int status;
 493         status = 0;
 494
 495         pTask = (struct rt_rtmp_os_task *)Context;
 496         pAd = (struct rt_rtmp_adapter *)pTask->priv;
 497
 498         RtmpOSTaskCustomize(pTask);
 499
 500         NdisAcquireSpinLock(&pAd->CmdQLock);
 501         pAd->CmdQ.CmdQState = RTMP_TASK_STAT_RUNNING;
 502         NdisReleaseSpinLock(&pAd->CmdQLock);
 503
 504         while (pAd && pAd->CmdQ.CmdQState == RTMP_TASK_STAT_RUNNING) {
 505 #ifdef KTHREAD_SUPPORT
 506                 RTMP_WAIT_EVENT_INTERRUPTIBLE(pAd, pTask);
 507 #else
 508                 /* lock the device pointers */
 509                 RTMP_SEM_EVENT_WAIT(&(pTask->taskSema), status);
 510
 511                 if (status != 0) {
 512                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 513                         break;
 514                 }
 515 #endif
 516
 517                 if (pAd->CmdQ.CmdQState == RTMP_TASK_STAT_STOPED)
 518                         break;
 519
 520                 if (!pAd->PM_FlgSuspend)
 521                         CMDHandler(pAd);
 522         }
 523
 524         if (pAd && !pAd->PM_FlgSuspend) {       /* Clear the CmdQElements. */
 525                 struct rt_cmdqelmt *pCmdQElmt = NULL;
 526
 527                 NdisAcquireSpinLock(&pAd->CmdQLock);
 528                 pAd->CmdQ.CmdQState = RTMP_TASK_STAT_STOPED;
 529                 while (pAd->CmdQ.size) {
 530                         RTUSBDequeueCmd(&pAd->CmdQ, &pCmdQElmt);
 531                         if (pCmdQElmt) {
 532                                 if (pCmdQElmt->CmdFromNdis == TRUE) {
 533                                         if (pCmdQElmt->buffer != NULL)
 534                                                 os_free_mem(pAd,
 535                                                             pCmdQElmt->buffer);
 536                                         os_free_mem(pAd, (u8 *)pCmdQElmt);
 537                                 } else {
 538                                         if ((pCmdQElmt->buffer != NULL)
 539                                             && (pCmdQElmt->bufferlength != 0))
 540                                                 os_free_mem(pAd,
 541                                                             pCmdQElmt->buffer);
 542                                         os_free_mem(pAd, (u8 *)pCmdQElmt);
 543                                 }
 544                         }
 545                 }
 546
 547                 NdisReleaseSpinLock(&pAd->CmdQLock);
 548         }
 549         /* notify the exit routine that we're actually exiting now
 550          *
 551          * complete()/wait_for_completion() is similar to up()/down(),
 552          * except that complete() is safe in the case where the structure
 553          * is getting deleted in a parallel mode of execution (i.e. just
 554          * after the down() -- that's necessary for the thread-shutdown
 555          * case.
 556          *
 557          * complete_and_exit() goes even further than this -- it is safe in
 558          * the case that the thread of the caller is going away (not just
 559          * the structure) -- this is necessary for the module-remove case.
 560          * This is important in preemption kernels, which transfer the flow
 561          * of execution immediately upon a complete().
 562          */
 563         DBGPRINT(RT_DEBUG_TRACE, ("<---RTUSBCmdThread\n"));
 564
 565 #ifndef KTHREAD_SUPPORT
 566         pTask->taskPID = THREAD_PID_INIT_VALUE;
 567         complete_and_exit(&pTask->taskComplete, 0);
 568 #endif
 569         return 0;
 570
 571 }
 572
 573 void RTUSBWatchDog(struct rt_rtmp_adapter *pAd)
 574 {
 575         struct rt_ht_tx_context *pHTTXContext;
 576         int idx;
 577         unsigned long irqFlags;
 578         PURB pUrb;
 579         BOOLEAN needDumpSeq = FALSE;
 580         u32 MACValue;
 581         u32 TxRxQ_Pcnt;
 582
 583         idx = 0;
 584         RTMP_IO_READ32(pAd, TXRXQ_PCNT, &MACValue);
 585         if ((MACValue & 0xff) != 0) {
 586                 DBGPRINT(RT_DEBUG_TRACE,
 587                          ("TX QUEUE 0 Not EMPTY(Value=0x%0x)!\n",
 588                           MACValue));
 589                 RTMP_IO_WRITE32(pAd, PBF_CFG, 0xf40012);
 590                 while ((MACValue & 0xff) != 0 && (idx++ < 10)) {
 591                         RTMP_IO_READ32(pAd, TXRXQ_PCNT, &MACValue);
 592                         RTMPusecDelay(1);
 593                 }
 594                 RTMP_IO_WRITE32(pAd, PBF_CFG, 0xf40006);
 595         }
 596
 597         if (pAd->watchDogRxOverFlowCnt >= 2) {
 598                 DBGPRINT(RT_DEBUG_TRACE,
 599                          ("Maybe the Rx Bulk-In hanged! Cancel the pending Rx bulks request!\n"));
 600                 if ((!RTMP_TEST_FLAG
 601                      (pAd,
 602                       (fRTMP_ADAPTER_RESET_IN_PROGRESS |
 603                        fRTMP_ADAPTER_BULKIN_RESET |
 604                        fRTMP_ADAPTER_HALT_IN_PROGRESS |
 605                        fRTMP_ADAPTER_NIC_NOT_EXIST)))) {
 606                         DBGPRINT(RT_DEBUG_TRACE,
 607                                  ("Call CMDTHREAD_RESET_BULK_IN to cancel the pending Rx Bulk!\n"));
 608                         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_BULKIN_RESET);
 609                         RTUSBEnqueueInternalCmd(pAd, CMDTHREAD_RESET_BULK_IN,
 610                                                 NULL, 0);
 611                         needDumpSeq = TRUE;
 612                 }
 613                 pAd->watchDogRxOverFlowCnt = 0;
 614         }
 615
 616         RTUSBReadMACRegister(pAd, 0x438, &TxRxQ_Pcnt);
 617
 618         for (idx = 0; idx < NUM_OF_TX_RING; idx++) {
 619                 pUrb = NULL;
 620
 621                 RTMP_IRQ_LOCK(&pAd->BulkOutLock[idx], irqFlags);
 622                 if ((pAd->BulkOutPending[idx] == TRUE)
 623                     && pAd->watchDogTxPendingCnt) {
 624                         int actual_length = 0, transfer_buffer_length = 0;
 625                         BOOLEAN isDataPacket = FALSE;
 626                         pAd->watchDogTxPendingCnt[idx]++;
 627
 628                         if ((pAd->watchDogTxPendingCnt[idx] > 2) &&
 629                             (!RTMP_TEST_FLAG
 630                              (pAd,
 631                               (fRTMP_ADAPTER_RESET_IN_PROGRESS |
 632                                fRTMP_ADAPTER_HALT_IN_PROGRESS |
 633                                fRTMP_ADAPTER_NIC_NOT_EXIST |
 634                                fRTMP_ADAPTER_BULKOUT_RESET)))
 635                             ) {
 636                                 /* FIXME: Following code just support single bulk out. If you wanna support multiple bulk out. Modify it! */
 637                                 pHTTXContext =
 638                                     (struct rt_ht_tx_context *)(&pAd->TxContext[idx]);
 639                                 if (pHTTXContext->IRPPending) { /* Check TxContext. */
 640                                         pUrb = pHTTXContext->pUrb;
 641
 642                                         actual_length = pUrb->actual_length;
 643                                         transfer_buffer_length =
 644                                             pUrb->transfer_buffer_length;
 645                                         isDataPacket = TRUE;
 646                                 } else if (idx == MGMTPIPEIDX) {
 647                                         struct rt_tx_context *pMLMEContext, *pNULLContext,
 648                                             *pPsPollContext;
 649
 650                                         /*Check MgmtContext. */
 651                                         pMLMEContext =
 652                                             (struct rt_tx_context *)(pAd->MgmtRing.
 653                                                            Cell[pAd->MgmtRing.
 654                                                                 TxDmaIdx].
 655                                                            AllocVa);
 656                                         pPsPollContext =
 657                                             (struct rt_tx_context *)(&pAd->PsPollContext);
 658                                         pNULLContext =
 659                                             (struct rt_tx_context *)(&pAd->NullContext);
 660
 661                                         if (pMLMEContext->IRPPending) {
 662                                                 ASSERT(pMLMEContext->
 663                                                        IRPPending);
 664                                                 pUrb = pMLMEContext->pUrb;
 665                                         } else if (pNULLContext->IRPPending) {
 666                                                 ASSERT(pNULLContext->
 667                                                        IRPPending);
 668                                                 pUrb = pNULLContext->pUrb;
 669                                         } else if (pPsPollContext->IRPPending) {
 670                                                 ASSERT(pPsPollContext->
 671                                                        IRPPending);
 672                                                 pUrb = pPsPollContext->pUrb;
 673                                         }
 674                                 }
 675
 676                                 RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx],
 677                                                 irqFlags);
 678
 679                                 printk(KERN_INFO "%d:%lu LTL=%d , TL=%d L:%d\n",
 680                                        idx, pAd->watchDogTxPendingCnt[idx],
 681                                        pAd->TransferedLength[idx],
 682                                        actual_length, transfer_buffer_length);
 683
 684                                 if (pUrb) {
 685                                         if ((isDataPacket
 686                                              && pAd->TransferedLength[idx] ==
 687                                              actual_length
 688                                              && pAd->TransferedLength[idx] <
 689                                              transfer_buffer_length
 690                                              && actual_length != 0
 691 /*                                      && TxRxQ_Pcnt==0 */
 692                                              && pAd->watchDogTxPendingCnt[idx] >
 693                                              3)
 694                                             || isDataPacket == FALSE
 695                                             || pAd->watchDogTxPendingCnt[idx] >
 696                                             6) {
 697                                                 DBGPRINT(RT_DEBUG_TRACE,
 698                                                          ("Maybe the Tx Bulk-Out hanged! Cancel the pending Tx bulks request of idx(%d)!\n",
 699                                                           idx));
 700                                                 DBGPRINT(RT_DEBUG_TRACE,
 701                                                          ("Unlink the pending URB!\n"));
 702                                                 /* unlink it now */
 703                                                 RTUSB_UNLINK_URB(pUrb);
 704                                                 /* Sleep 200 microseconds to give cancellation time to work */
 705                                                 /*RTMPusecDelay(200); */
 706                                                 needDumpSeq = TRUE;
 707                                         }
 708                                 } else {
 709                                         DBGPRINT(RT_DEBUG_ERROR,
 710                                                  ("Unknown bulkOut URB maybe hanged!\n"));
 711                                 }
 712                         } else {
 713                                 RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx],
 714                                                 irqFlags);
 715                         }
 716
 717                         if (isDataPacket == TRUE)
 718                                 pAd->TransferedLength[idx] = actual_length;
 719                 } else {
 720                         RTMP_IRQ_UNLOCK(&pAd->BulkOutLock[idx], irqFlags);
 721                 }
 722         }
 723
 724         /* For Sigma debug, dump the ba_reordering sequence. */
 725         if ((needDumpSeq == TRUE) && (pAd->CommonCfg.bDisableReordering == 0)) {
 726                 u16 Idx;
 727                 struct rt_ba_rec_entry *pBAEntry = NULL;
 728                 u8 count = 0;
 729                 struct reordering_mpdu *mpdu_blk;
 730
 731                 Idx = pAd->MacTab.Content[BSSID_WCID].BARecWcidArray[0];
 732
 733                 pBAEntry = &pAd->BATable.BARecEntry[Idx];
 734                 if ((pBAEntry->list.qlen > 0) && (pBAEntry->list.next != NULL)) {
 735                         DBGPRINT(RT_DEBUG_TRACE,
 736                                  ("NICUpdateRawCounters():The Queueing pkt in reordering buffer:\n"));
 737                         NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
 738                         mpdu_blk = pBAEntry->list.next;
 739                         while (mpdu_blk) {
 740                                 DBGPRINT(RT_DEBUG_TRACE,
 741                                          ("\t%d:Seq-%d, bAMSDU-%d!\n", count,
 742                                           mpdu_blk->Sequence,
 743                                           mpdu_blk->bAMSDU));
 744                                 mpdu_blk = mpdu_blk->next;
 745                                 count++;
 746                         }
 747
 748                         DBGPRINT(RT_DEBUG_TRACE,
 749                                  ("\npBAEntry->LastIndSeq=%d!\n",
 750                                   pBAEntry->LastIndSeq));
 751                         NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
 752                 }
 753         }
 754 }
 755
 756 /*
 757 ========================================================================
 758 Routine Description:
 759     Release allocated resources.
 760
 761 Arguments:
 762     *dev                                Point to the PCI or USB device
 763         pAd                                     driver control block pointer
 764
 765 Return Value:
 766     None
 767
 768 Note:
 769 ========================================================================
 770 */
 771 static void rt2870_disconnect(struct usb_device *dev, struct rt_rtmp_adapter *pAd)
 772 {
 773         DBGPRINT(RT_DEBUG_ERROR,
 774                  ("rtusb_disconnect: unregister usbnet usb-%s-%s\n",
 775                   dev->bus->bus_name, dev->devpath));
 776         if (!pAd) {
 777                 usb_put_dev(dev);
 778                 printk("rtusb_disconnect: pAd == NULL!\n");
 779                 return;
 780         }
 781         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST);
 782
 783         /* for debug, wait to show some messages to /proc system */
 784         udelay(1);
 785
 786         RtmpPhyNetDevExit(pAd, pAd->net_dev);
 787
 788         /* FIXME: Shall we need following delay and flush the schedule?? */
 789         udelay(1);
 790         flush_scheduled_work();
 791         udelay(1);
 792
 793         /* free the root net_device */
 794         RtmpOSNetDevFree(pAd->net_dev);
 795
 796         RtmpRaDevCtrlExit(pAd);
 797
 798         /* release a use of the usb device structure */
 799         usb_put_dev(dev);
 800         udelay(1);
 801
 802         DBGPRINT(RT_DEBUG_ERROR, (" RTUSB disconnect successfully\n"));
 803 }
 804
 805 static int __devinit rt2870_probe(IN struct usb_interface *intf,
 806                                   IN struct usb_device *usb_dev,
 807                                   IN const struct usb_device_id *dev_id,
 808                                   struct rt_rtmp_adapter ** ppAd)
 809 {
 810         struct net_device *net_dev = NULL;
 811         struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)NULL;
 812         int status, rv;
 813         void *handle;
 814         struct rt_rtmp_os_netdev_op_hook netDevHook;
 815
 816         DBGPRINT(RT_DEBUG_TRACE, ("===>rt2870_probe()!\n"));
 817
 818         /* Check chipset vendor/product ID */
 819         /*if (RT28XXChipsetCheck(_dev_p) == FALSE) */
 820         /*      goto err_out; */
 821
 822 /*RtmpDevInit============================================= */
 823         /* Allocate struct rt_rtmp_adapter adapter structure */
 824         handle = kmalloc(sizeof(struct os_cookie), GFP_KERNEL);
 825         if (handle == NULL) {
 826                 printk
 827                     ("rt2870_probe(): Allocate memory for os handle failed!\n");
 828                 return -ENOMEM;
 829         }
 830         ((struct os_cookie *)handle)->pUsb_Dev = usb_dev;
 831
 832         rv = RTMPAllocAdapterBlock(handle, &pAd);
 833         if (rv != NDIS_STATUS_SUCCESS) {
 834                 kfree(handle);
 835                 goto err_out;
 836         }
 837 /*USBDevInit============================================== */
 838         if (USBDevConfigInit(usb_dev, intf, pAd) == FALSE)
 839                 goto err_out_free_radev;
 840
 841         RtmpRaDevCtrlInit(pAd, RTMP_DEV_INF_USB);
 842
 843 /*NetDevInit============================================== */
 844         net_dev = RtmpPhyNetDevInit(pAd, &netDevHook);
 845         if (net_dev == NULL)
 846                 goto err_out_free_radev;
 847
 848         /* Here are the net_device structure with usb specific parameters. */
 849         /* for supporting Network Manager.
 850          * Set the sysfs physical device reference for the network logical device if set prior to registration will
 851          * cause a symlink during initialization.
 852          */
 853         SET_NETDEV_DEV(net_dev, &(usb_dev->dev));
 854
 855         pAd->StaCfg.OriDevType = net_dev->type;
 856
 857 /*All done, it's time to register the net device to linux kernel. */
 858         /* Register this device */
 859         status = RtmpOSNetDevAttach(net_dev, &netDevHook);
 860         if (status != 0)
 861                 goto err_out_free_netdev;
 862
 863 #ifdef KTHREAD_SUPPORT
 864         init_waitqueue_head(&pAd->mlmeTask.kthread_q);
 865         init_waitqueue_head(&pAd->timerTask.kthread_q);
 866         init_waitqueue_head(&pAd->cmdQTask.kthread_q);
 867 #endif
 868
 869         *ppAd = pAd;
 870
 871         DBGPRINT(RT_DEBUG_TRACE, ("<===rt2870_probe()!\n"));
 872
 873         return 0;
 874
 875         /* --------------------------- ERROR HANDLE --------------------------- */
 876 err_out_free_netdev:
 877         RtmpOSNetDevFree(net_dev);
 878
 879 err_out_free_radev:
 880         RTMPFreeAdapter(pAd);
 881
 882 err_out:
 883         *ppAd = NULL;
 884
 885         return -1;
 886
 887 }