drivers/staging/vt6656/main_usb.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * File: main_usb.c
  20  *
  21  * Purpose: driver entry for initial, open, close, tx and rx.
  22  *
  23  * Author: Lyndon Chen
  24  *
  25  * Date: Dec 8, 2005
  26  *
  27  * Functions:
  28  *
  29  *   vt6656_probe - module initial (insmod) driver entry
  30  *   device_remove1 - module remove entry
  31  *   device_open - allocate dma/descripter resource & initial mac/bbp function
  32  *   device_xmit - asynchronous data tx function
  33  *   device_set_multi - set mac filter
  34  *   device_ioctl - ioctl entry
  35  *   device_close - shutdown mac/bbp & free dma/descriptor resource
  36  *   device_alloc_frag_buf - rx fragement pre-allocated function
  37  *   device_free_tx_bufs - free tx buffer function
  38  *   device_dma0_tx_80211- tx 802.11 frame via dma0
  39  *   device_dma0_xmit- tx PS buffered frame via dma0
  40  *   device_init_registers- initial MAC & BBP & RF internal registers.
  41  *   device_init_rings- initial tx/rx ring buffer
  42  *   device_init_defrag_cb- initial & allocate de-fragement buffer.
  43  *   device_tx_srv- tx interrupt service function
  44  *
  45  * Revision History:
  46  */
  47 #undef __NO_VERSION__
  48
  49 #include <linux/file.h>
  50 #include "device.h"
  51 #include "card.h"
  52 #include "baseband.h"
  53 #include "mac.h"
  54 #include "tether.h"
  55 #include "wmgr.h"
  56 #include "wctl.h"
  57 #include "power.h"
  58 #include "wcmd.h"
  59 #include "iocmd.h"
  60 #include "tcrc.h"
  61 #include "rxtx.h"
  62 #include "bssdb.h"
  63 #include "hostap.h"
  64 #include "wpactl.h"
  65 #include "iwctl.h"
  66 #include "dpc.h"
  67 #include "datarate.h"
  68 #include "rf.h"
  69 #include "firmware.h"
  70 #include "rndis.h"
  71 #include "control.h"
  72 #include "channel.h"
  73 #include "int.h"
  74 #include "iowpa.h"
  75
  76 /* static int msglevel = MSG_LEVEL_DEBUG; */
  77 static int          msglevel                =MSG_LEVEL_INFO;
  78
  79 /*
  80  * define module options
  81  */
  82
  83 /* version information */
  84 #define DRIVER_AUTHOR \
  85         "VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
  86 MODULE_AUTHOR(DRIVER_AUTHOR);
  87 MODULE_LICENSE("GPL");
  88 MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
  89
  90 #define DEVICE_PARAM(N,D) \
  91         static int N[MAX_UINTS]=OPTION_DEFAULT;\
  92         module_param_array(N, int, NULL, 0);\
  93         MODULE_PARM_DESC(N, D);
  94
  95 #define RX_DESC_DEF0     64
  96 DEVICE_PARAM(RxDescriptors0,"Number of receive usb desc buffer");
  97
  98 #define TX_DESC_DEF0     64
  99 DEVICE_PARAM(TxDescriptors0,"Number of transmit usb desc buffer");
 100
 101 #define CHANNEL_DEF     6
 102 DEVICE_PARAM(Channel, "Channel number");
 103
 104 /* PreambleType[] is the preamble length used for transmit.
 105    0: indicate allows long preamble type
 106    1: indicate allows short preamble type
 107 */
 108
 109 #define PREAMBLE_TYPE_DEF     1
 110
 111 DEVICE_PARAM(PreambleType, "Preamble Type");
 112
 113 #define RTS_THRESH_DEF     2347
 114 DEVICE_PARAM(RTSThreshold, "RTS threshold");
 115
 116 #define FRAG_THRESH_DEF     2346
 117 DEVICE_PARAM(FragThreshold, "Fragmentation threshold");
 118
 119 #define DATA_RATE_DEF     13
 120 /* datarate[] index
 121    0: indicate 1 Mbps   0x02
 122    1: indicate 2 Mbps   0x04
 123    2: indicate 5.5 Mbps 0x0B
 124    3: indicate 11 Mbps  0x16
 125    4: indicate 6 Mbps   0x0c
 126    5: indicate 9 Mbps   0x12
 127    6: indicate 12 Mbps  0x18
 128    7: indicate 18 Mbps  0x24
 129    8: indicate 24 Mbps  0x30
 130    9: indicate 36 Mbps  0x48
 131   10: indicate 48 Mbps  0x60
 132   11: indicate 54 Mbps  0x6c
 133   12: indicate 72 Mbps  0x90
 134   13: indicate auto rate
 135 */
 136
 137 DEVICE_PARAM(ConnectionRate, "Connection data rate");
 138
 139 #define OP_MODE_DEF     0
 140 DEVICE_PARAM(OPMode, "Infrastruct, adhoc, AP mode ");
 141
 142 /* OpMode[] is used for transmit.
 143    0: indicate infrastruct mode used
 144    1: indicate adhoc mode used
 145    2: indicate AP mode used
 146 */
 147
 148 /* PSMode[]
 149    0: indicate disable power saving mode
 150    1: indicate enable power saving mode
 151 */
 152
 153 #define PS_MODE_DEF     0
 154 DEVICE_PARAM(PSMode, "Power saving mode");
 155
 156 #define SHORT_RETRY_DEF     8
 157 DEVICE_PARAM(ShortRetryLimit, "Short frame retry limits");
 158
 159 #define LONG_RETRY_DEF     4
 160 DEVICE_PARAM(LongRetryLimit, "long frame retry limits");
 161
 162 /* BasebandType[] baseband type selected
 163    0: indicate 802.11a type
 164    1: indicate 802.11b type
 165    2: indicate 802.11g type
 166 */
 167
 168 #define BBP_TYPE_DEF     2
 169 DEVICE_PARAM(BasebandType, "baseband type");
 170
 171 /* 80211hEnable[]
 172    0: indicate disable 802.11h
 173    1: indicate enable 802.11h
 174 */
 175
 176 #define X80211h_MODE_DEF     0
 177
 178 DEVICE_PARAM(b80211hEnable, "802.11h mode");
 179
 180 /*
 181  * Static vars definitions
 182  */
 183
 184 static struct usb_device_id vt6656_table[] = {
 185         {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
 186         {}
 187 };
 188
 189 /* frequency list (map channels to frequencies) */
 190 /*
 191 static const long frequency_list[] = {
 192     2412, 2417, 2422, 2427, 2432, 2437, 2442, 2447, 2452, 2457, 2462, 2467, 2472, 2484,
 193     4915, 4920, 4925, 4935, 4940, 4945, 4960, 4980,
 194     5035, 5040, 5045, 5055, 5060, 5080, 5170, 5180, 5190, 5200, 5210, 5220, 5230, 5240,
 195     5260, 5280, 5300, 5320, 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680,
 196     5700, 5745, 5765, 5785, 5805, 5825
 197         };
 198
 199 static const struct iw_handler_def      iwctl_handler_def;
 200 */
 201
 202 static int vt6656_probe(struct usb_interface *intf,
 203                         const struct usb_device_id *id);
 204 static void vt6656_disconnect(struct usb_interface *intf);
 205
 206 #ifdef CONFIG_PM        /* Minimal support for suspend and resume */
 207 static int vt6656_suspend(struct usb_interface *intf, pm_message_t message);
 208 static int vt6656_resume(struct usb_interface *intf);
 209 #endif /* CONFIG_PM */
 210
 211 static struct net_device_stats *device_get_stats(struct net_device *dev);
 212 static int  device_open(struct net_device *dev);
 213 static int  device_xmit(struct sk_buff *skb, struct net_device *dev);
 214 static void device_set_multi(struct net_device *dev);
 215 static int  device_close(struct net_device *dev);
 216 static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 217
 218 static int device_init_registers(struct vnt_private *pDevice,
 219         DEVICE_INIT_TYPE InitType);
 220 static bool device_init_defrag_cb(struct vnt_private *pDevice);
 221 static void device_init_diversity_timer(struct vnt_private *pDevice);
 222 static int  device_dma0_tx_80211(struct sk_buff *skb, struct net_device *dev);
 223
 224 static int  ethtool_ioctl(struct net_device *dev, void *useraddr);
 225 static void device_free_tx_bufs(struct vnt_private *pDevice);
 226 static void device_free_rx_bufs(struct vnt_private *pDevice);
 227 static void device_free_int_bufs(struct vnt_private *pDevice);
 228 static void device_free_frag_bufs(struct vnt_private *pDevice);
 229 static bool device_alloc_bufs(struct vnt_private *pDevice);
 230
 231 static int Read_config_file(struct vnt_private *pDevice);
 232 static unsigned char *Config_FileOperation(struct vnt_private *pDevice);
 233 static int Config_FileGetParameter(unsigned char *string,
 234                                    unsigned char *dest,
 235                                    unsigned char *source);
 236
 237 static void usb_device_reset(struct vnt_private *pDevice);
 238
 239 static void
 240 device_set_options(struct vnt_private *pDevice) {
 241
 242     u8    abyBroadcastAddr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 243     u8    abySNAP_RFC1042[ETH_ALEN] = {0xAA, 0xAA, 0x03, 0x00, 0x00, 0x00};
 244     u8 abySNAP_Bridgetunnel[ETH_ALEN] = {0xAA, 0xAA, 0x03, 0x00, 0x00, 0xF8};
 245
 246     memcpy(pDevice->abyBroadcastAddr, abyBroadcastAddr, ETH_ALEN);
 247     memcpy(pDevice->abySNAP_RFC1042, abySNAP_RFC1042, ETH_ALEN);
 248     memcpy(pDevice->abySNAP_Bridgetunnel, abySNAP_Bridgetunnel, ETH_ALEN);
 249
 250     pDevice->cbTD = TX_DESC_DEF0;
 251     pDevice->cbRD = RX_DESC_DEF0;
 252     pDevice->uChannel = CHANNEL_DEF;
 253     pDevice->wRTSThreshold = RTS_THRESH_DEF;
 254     pDevice->wFragmentationThreshold = FRAG_THRESH_DEF;
 255     pDevice->byShortRetryLimit = SHORT_RETRY_DEF;
 256     pDevice->byLongRetryLimit = LONG_RETRY_DEF;
 257     pDevice->wMaxTransmitMSDULifetime = DEFAULT_MSDU_LIFETIME;
 258     pDevice->byShortPreamble = PREAMBLE_TYPE_DEF;
 259     pDevice->ePSMode = PS_MODE_DEF;
 260     pDevice->b11hEnable = X80211h_MODE_DEF;
 261     pDevice->eOPMode = OP_MODE_DEF;
 262     pDevice->uConnectionRate = DATA_RATE_DEF;
 263     if (pDevice->uConnectionRate < RATE_AUTO) pDevice->bFixRate = true;
 264     pDevice->byBBType = BBP_TYPE_DEF;
 265     pDevice->byPacketType = pDevice->byBBType;
 266     pDevice->byAutoFBCtrl = AUTO_FB_0;
 267     pDevice->bUpdateBBVGA = true;
 268     pDevice->byFOETuning = 0;
 269     pDevice->byAutoPwrTunning = 0;
 270     pDevice->byPreambleType = 0;
 271     pDevice->bExistSWNetAddr = false;
 272     /* pDevice->bDiversityRegCtlON = true; */
 273     pDevice->bDiversityRegCtlON = false;
 274 }
 275
 276 static void device_init_diversity_timer(struct vnt_private *pDevice)
 277 {
 278     init_timer(&pDevice->TimerSQ3Tmax1);
 279     pDevice->TimerSQ3Tmax1.data = (unsigned long)pDevice;
 280     pDevice->TimerSQ3Tmax1.function = (TimerFunction)TimerSQ3CallBack;
 281     pDevice->TimerSQ3Tmax1.expires = RUN_AT(HZ);
 282
 283     init_timer(&pDevice->TimerSQ3Tmax2);
 284     pDevice->TimerSQ3Tmax2.data = (unsigned long)pDevice;
 285     pDevice->TimerSQ3Tmax2.function = (TimerFunction)TimerSQ3CallBack;
 286     pDevice->TimerSQ3Tmax2.expires = RUN_AT(HZ);
 287
 288     init_timer(&pDevice->TimerSQ3Tmax3);
 289     pDevice->TimerSQ3Tmax3.data = (unsigned long)pDevice;
 290     pDevice->TimerSQ3Tmax3.function = (TimerFunction)TimerSQ3Tmax3CallBack;
 291     pDevice->TimerSQ3Tmax3.expires = RUN_AT(HZ);
 292
 293     return;
 294 }
 295
 296 /*
 297  * initialization of MAC & BBP registers
 298  */
 299
 300 static int device_init_registers(struct vnt_private *pDevice,
 301         DEVICE_INIT_TYPE InitType)
 302 {
 303         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 304         u8 abyBroadcastAddr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 305         u8 abySNAP_RFC1042[ETH_ALEN] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
 306         u8 abySNAP_Bridgetunnel[ETH_ALEN]
 307                 = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8};
 308         u8 byAntenna;
 309         int ii;
 310         CMD_CARD_INIT sInitCmd;
 311         int ntStatus = STATUS_SUCCESS;
 312         RSP_CARD_INIT   sInitRsp;
 313         u8 byTmp;
 314         u8 byCalibTXIQ = 0, byCalibTXDC = 0, byCalibRXIQ = 0;
 315
 316     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---->INIbInitAdapter. [%d][%d]\n", InitType, pDevice->byPacketType);
 317         spin_lock_irq(&pDevice->lock);
 318         if (InitType == DEVICE_INIT_COLD) {
 319                 memcpy(pDevice->abyBroadcastAddr, abyBroadcastAddr, ETH_ALEN);
 320                 memcpy(pDevice->abySNAP_RFC1042, abySNAP_RFC1042, ETH_ALEN);
 321                 memcpy(pDevice->abySNAP_Bridgetunnel,
 322                        abySNAP_Bridgetunnel,
 323                        ETH_ALEN);
 324
 325         if ( !FIRMWAREbCheckVersion(pDevice) ) {
 326             if (FIRMWAREbDownload(pDevice) == true) {
 327                 if (FIRMWAREbBrach2Sram(pDevice) == false) {
 328                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO" FIRMWAREbBrach2Sram fail \n");
 329                         spin_unlock_irq(&pDevice->lock);
 330                     return false;
 331                 }
 332             } else {
 333
 334                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO" FIRMWAREbDownload fail \n");
 335                 spin_unlock_irq(&pDevice->lock);
 336                 return false;
 337             }
 338         }
 339
 340         if ( !BBbVT3184Init(pDevice) ) {
 341             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO" BBbVT3184Init fail \n");
 342             spin_unlock_irq(&pDevice->lock);
 343             return false;
 344         }
 345     }
 346
 347     sInitCmd.byInitClass = (u8)InitType;
 348     sInitCmd.bExistSWNetAddr = (u8) pDevice->bExistSWNetAddr;
 349     for (ii = 0; ii < 6; ii++)
 350         sInitCmd.bySWNetAddr[ii] = pDevice->abyCurrentNetAddr[ii];
 351     sInitCmd.byShortRetryLimit = pDevice->byShortRetryLimit;
 352     sInitCmd.byLongRetryLimit = pDevice->byLongRetryLimit;
 353
 354     /* issue card_init command to device */
 355     ntStatus = CONTROLnsRequestOut(pDevice,
 356                                     MESSAGE_TYPE_CARDINIT,
 357                                     0,
 358                                     0,
 359                                     sizeof(CMD_CARD_INIT),
 360                                     (u8 *) &(sInitCmd));
 361
 362     if ( ntStatus != STATUS_SUCCESS ) {
 363         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO" Issue Card init fail \n");
 364         spin_unlock_irq(&pDevice->lock);
 365         return false;
 366     }
 367     if (InitType == DEVICE_INIT_COLD) {
 368
 369         ntStatus = CONTROLnsRequestIn(pDevice,MESSAGE_TYPE_INIT_RSP,0,0,sizeof(RSP_CARD_INIT), (u8 *) &(sInitRsp));
 370
 371         if (ntStatus != STATUS_SUCCESS) {
 372             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Cardinit request in status fail!\n");
 373             spin_unlock_irq(&pDevice->lock);
 374             return false;
 375         }
 376
 377         /* local ID for AES functions */
 378         ntStatus = CONTROLnsRequestIn(pDevice,
 379                                     MESSAGE_TYPE_READ,
 380                                     MAC_REG_LOCALID,
 381                                     MESSAGE_REQUEST_MACREG,
 382                                     1,
 383                                     &pDevice->byLocalID);
 384
 385         if ( ntStatus != STATUS_SUCCESS ) {
 386             spin_unlock_irq(&pDevice->lock);
 387             return false;
 388         }
 389
 390         /* do MACbSoftwareReset in MACvInitialize */
 391
 392         /* force CCK */
 393         pDevice->bCCK = true;
 394         pDevice->bProtectMode = false;
 395         /* only used in 11g type, sync with ERP IE */
 396         pDevice->bNonERPPresent = false;
 397         pDevice->bBarkerPreambleMd = false;
 398         if ( pDevice->bFixRate ) {
 399             pDevice->wCurrentRate = (u16) pDevice->uConnectionRate;
 400         } else {
 401             if ( pDevice->byBBType == BB_TYPE_11B )
 402                 pDevice->wCurrentRate = RATE_11M;
 403             else
 404                 pDevice->wCurrentRate = RATE_54M;
 405         }
 406
 407         CHvInitChannelTable(pDevice);
 408
 409         pDevice->byTopOFDMBasicRate = RATE_24M;
 410         pDevice->byTopCCKBasicRate = RATE_1M;
 411         pDevice->byRevId = 0;
 412         /* target to IF pin while programming to RF chip */
 413         pDevice->byCurPwr = 0xFF;
 414
 415         pDevice->byCCKPwr = pDevice->abyEEPROM[EEP_OFS_PWR_CCK];
 416         pDevice->byOFDMPwrG = pDevice->abyEEPROM[EEP_OFS_PWR_OFDMG];
 417         /* load power table */
 418         for (ii = 0; ii < 14; ii++) {
 419             pDevice->abyCCKPwrTbl[ii] = pDevice->abyEEPROM[ii + EEP_OFS_CCK_PWR_TBL];
 420             if (pDevice->abyCCKPwrTbl[ii] == 0)
 421                 pDevice->abyCCKPwrTbl[ii] = pDevice->byCCKPwr;
 422             pDevice->abyOFDMPwrTbl[ii] = pDevice->abyEEPROM[ii + EEP_OFS_OFDM_PWR_TBL];
 423             if (pDevice->abyOFDMPwrTbl[ii] == 0)
 424                 pDevice->abyOFDMPwrTbl[ii] = pDevice->byOFDMPwrG;
 425         }
 426
 427         /*
 428          * original zonetype is USA, but custom zonetype is Europe,
 429          * then need to recover 12, 13, 14 channels with 11 channel
 430          */
 431           if(((pDevice->abyEEPROM[EEP_OFS_ZONETYPE] == ZoneType_Japan) ||
 432                 (pDevice->abyEEPROM[EEP_OFS_ZONETYPE] == ZoneType_Europe))&&
 433              (pDevice->byOriginalZonetype == ZoneType_USA)) {
 434                 for (ii = 11; ii < 14; ii++) {
 435                         pDevice->abyCCKPwrTbl[ii] = pDevice->abyCCKPwrTbl[10];
 436                         pDevice->abyOFDMPwrTbl[ii] = pDevice->abyOFDMPwrTbl[10];
 437                 }
 438           }
 439
 440           pDevice->byOFDMPwrA = 0x34; /* same as RFbMA2829SelectChannel */
 441
 442           /* load OFDM A power table */
 443           for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
 444             pDevice->abyOFDMAPwrTbl[ii] = pDevice->abyEEPROM[ii + EEP_OFS_OFDMA_PWR_TBL];
 445             if (pDevice->abyOFDMAPwrTbl[ii] == 0)
 446                 pDevice->abyOFDMAPwrTbl[ii] = pDevice->byOFDMPwrA;
 447         }
 448
 449         byAntenna = pDevice->abyEEPROM[EEP_OFS_ANTENNA];
 450         if (byAntenna & EEP_ANTINV)
 451             pDevice->bTxRxAntInv = true;
 452         else
 453             pDevice->bTxRxAntInv = false;
 454
 455         byAntenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
 456
 457         if (byAntenna == 0) /* if not set default is both */
 458             byAntenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
 459
 460         if (byAntenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
 461             pDevice->byAntennaCount = 2;
 462             pDevice->byTxAntennaMode = ANT_B;
 463             pDevice->dwTxAntennaSel = 1;
 464             pDevice->dwRxAntennaSel = 1;
 465             if (pDevice->bTxRxAntInv == true)
 466                 pDevice->byRxAntennaMode = ANT_A;
 467             else
 468                 pDevice->byRxAntennaMode = ANT_B;
 469
 470             if (pDevice->bDiversityRegCtlON)
 471                 pDevice->bDiversityEnable = true;
 472             else
 473                 pDevice->bDiversityEnable = false;
 474         } else  {
 475             pDevice->bDiversityEnable = false;
 476             pDevice->byAntennaCount = 1;
 477             pDevice->dwTxAntennaSel = 0;
 478             pDevice->dwRxAntennaSel = 0;
 479             if (byAntenna & EEP_ANTENNA_AUX) {
 480                 pDevice->byTxAntennaMode = ANT_A;
 481                 if (pDevice->bTxRxAntInv == true)
 482                     pDevice->byRxAntennaMode = ANT_B;
 483                 else
 484                     pDevice->byRxAntennaMode = ANT_A;
 485             } else {
 486                 pDevice->byTxAntennaMode = ANT_B;
 487                 if (pDevice->bTxRxAntInv == true)
 488                     pDevice->byRxAntennaMode = ANT_A;
 489                 else
 490                     pDevice->byRxAntennaMode = ANT_B;
 491             }
 492         }
 493         pDevice->ulDiversityNValue = 100*255;
 494         pDevice->ulDiversityMValue = 100*16;
 495         pDevice->byTMax = 1;
 496         pDevice->byTMax2 = 4;
 497         pDevice->ulSQ3TH = 0;
 498         pDevice->byTMax3 = 64;
 499
 500         /* get Auto Fall Back type */
 501         pDevice->byAutoFBCtrl = AUTO_FB_0;
 502
 503         /* set SCAN Time */
 504         pDevice->uScanTime = WLAN_SCAN_MINITIME;
 505
 506         /* default Auto Mode */
 507         /* pDevice->NetworkType = Ndis802_11Automode; */
 508         pDevice->eConfigPHYMode = PHY_TYPE_AUTO;
 509         pDevice->byBBType = BB_TYPE_11G;
 510
 511         /* initialize BBP registers */
 512         pDevice->ulTxPower = 25;
 513
 514         /* get channel range */
 515         pDevice->byMinChannel = 1;
 516         pDevice->byMaxChannel = CB_MAX_CHANNEL;
 517
 518         /* get RFType */
 519         pDevice->byRFType = sInitRsp.byRFType;
 520
 521         if ((pDevice->byRFType & RF_EMU) != 0) {
 522                 /* force change RevID for VT3253 emu */
 523                 pDevice->byRevId = 0x80;
 524         }
 525
 526         /* load vt3266 calibration parameters in EEPROM */
 527         if (pDevice->byRFType == RF_VT3226D0) {
 528             if((pDevice->abyEEPROM[EEP_OFS_MAJOR_VER] == 0x1) &&
 529                 (pDevice->abyEEPROM[EEP_OFS_MINOR_VER] >= 0x4)) {
 530                 byCalibTXIQ = pDevice->abyEEPROM[EEP_OFS_CALIB_TX_IQ];
 531                 byCalibTXDC = pDevice->abyEEPROM[EEP_OFS_CALIB_TX_DC];
 532                 byCalibRXIQ = pDevice->abyEEPROM[EEP_OFS_CALIB_RX_IQ];
 533                 if( (byCalibTXIQ || byCalibTXDC || byCalibRXIQ) ) {
 534                         /* CR255, enable TX/RX IQ and DC compensation mode */
 535                         ControlvWriteByte(pDevice,
 536                                           MESSAGE_REQUEST_BBREG,
 537                                           0xFF,
 538                                           0x03);
 539                         /* CR251, TX I/Q Imbalance Calibration */
 540                         ControlvWriteByte(pDevice,
 541                                           MESSAGE_REQUEST_BBREG,
 542                                           0xFB,
 543                                           byCalibTXIQ);
 544                         /* CR252, TX DC-Offset Calibration */
 545                         ControlvWriteByte(pDevice,
 546                                           MESSAGE_REQUEST_BBREG,
 547                                           0xFC,
 548                                           byCalibTXDC);
 549                         /* CR253, RX I/Q Imbalance Calibration */
 550                         ControlvWriteByte(pDevice,
 551                                           MESSAGE_REQUEST_BBREG,
 552                                           0xFD,
 553                                           byCalibRXIQ);
 554                 } else {
 555                         /* CR255, turn off BB Calibration compensation */
 556                         ControlvWriteByte(pDevice,
 557                                           MESSAGE_REQUEST_BBREG,
 558                                           0xFF,
 559                                           0x0);
 560                 }
 561             }
 562         }
 563         pMgmt->eScanType = WMAC_SCAN_PASSIVE;
 564         pMgmt->uCurrChannel = pDevice->uChannel;
 565         pMgmt->uIBSSChannel = pDevice->uChannel;
 566         CARDbSetMediaChannel(pDevice, pMgmt->uCurrChannel);
 567
 568         /* get permanent network address */
 569         memcpy(pDevice->abyPermanentNetAddr,&(sInitRsp.byNetAddr[0]),6);
 570         memcpy(pDevice->abyCurrentNetAddr,
 571                pDevice->abyPermanentNetAddr,
 572                ETH_ALEN);
 573
 574         /* if exist SW network address, use it */
 575         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Network address = %pM\n",
 576                 pDevice->abyCurrentNetAddr);
 577     }
 578
 579     /*
 580      * set BB and packet type at the same time
 581      * set Short Slot Time, xIFS, and RSPINF
 582      */
 583     if (pDevice->byBBType == BB_TYPE_11A) {
 584         CARDbAddBasicRate(pDevice, RATE_6M);
 585         pDevice->bShortSlotTime = true;
 586     } else {
 587         CARDbAddBasicRate(pDevice, RATE_1M);
 588         pDevice->bShortSlotTime = false;
 589     }
 590     BBvSetShortSlotTime(pDevice);
 591     CARDvSetBSSMode(pDevice);
 592
 593     if (pDevice->bUpdateBBVGA) {
 594         pDevice->byBBVGACurrent = pDevice->abyBBVGA[0];
 595         pDevice->byBBVGANew = pDevice->byBBVGACurrent;
 596         BBvSetVGAGainOffset(pDevice, pDevice->abyBBVGA[0]);
 597     }
 598
 599     pDevice->byRadioCtl = pDevice->abyEEPROM[EEP_OFS_RADIOCTL];
 600     pDevice->bHWRadioOff = false;
 601     if ( (pDevice->byRadioCtl & EEP_RADIOCTL_ENABLE) != 0 ) {
 602         ntStatus = CONTROLnsRequestIn(pDevice,
 603                                     MESSAGE_TYPE_READ,
 604                                     MAC_REG_GPIOCTL1,
 605                                     MESSAGE_REQUEST_MACREG,
 606                                     1,
 607                                     &byTmp);
 608
 609         if ( ntStatus != STATUS_SUCCESS ) {
 610             spin_unlock_irq(&pDevice->lock);
 611             return false;
 612         }
 613         if ( (byTmp & GPIO3_DATA) == 0 ) {
 614             pDevice->bHWRadioOff = true;
 615             MACvRegBitsOn(pDevice,MAC_REG_GPIOCTL1,GPIO3_INTMD);
 616         } else {
 617             MACvRegBitsOff(pDevice,MAC_REG_GPIOCTL1,GPIO3_INTMD);
 618             pDevice->bHWRadioOff = false;
 619         }
 620
 621     }
 622
 623     ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_TMLEN,0x38);
 624     ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW);
 625     MACvRegBitsOn(pDevice,MAC_REG_GPIOCTL0,0x01);
 626
 627     if ((pDevice->bHWRadioOff == true) || (pDevice->bRadioControlOff == true)) {
 628         CARDbRadioPowerOff(pDevice);
 629     } else {
 630         CARDbRadioPowerOn(pDevice);
 631     }
 632
 633     spin_unlock_irq(&pDevice->lock);
 634     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----INIbInitAdapter Exit\n");
 635     return true;
 636 }
 637
 638 #ifdef CONFIG_PM        /* Minimal support for suspend and resume */
 639
 640 static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
 641 {
 642         struct vnt_private *device = usb_get_intfdata(intf);
 643
 644         if (!device || !device->dev)
 645                 return -ENODEV;
 646
 647         if (device->flags & DEVICE_FLAGS_OPENED)
 648                 device_close(device->dev);
 649
 650         return 0;
 651 }
 652
 653 static int vt6656_resume(struct usb_interface *intf)
 654 {
 655         struct vnt_private *device = usb_get_intfdata(intf);
 656
 657         if (!device || !device->dev)
 658                 return -ENODEV;
 659
 660         if (!(device->flags & DEVICE_FLAGS_OPENED))
 661                 device_open(device->dev);
 662
 663         return 0;
 664 }
 665
 666 #endif /* CONFIG_PM */
 667
 668 static const struct net_device_ops device_netdev_ops = {
 669     .ndo_open               = device_open,
 670     .ndo_stop               = device_close,
 671     .ndo_do_ioctl           = device_ioctl,
 672     .ndo_get_stats          = device_get_stats,
 673     .ndo_start_xmit         = device_xmit,
 674     .ndo_set_rx_mode        = device_set_multi,
 675 };
 676
 677 static int
 678 vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 679 {
 680         u8 fake_mac[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
 681         struct usb_device *udev = interface_to_usbdev(intf);
 682         int rc = 0;
 683         struct net_device *netdev = NULL;
 684         struct vnt_private *pDevice;
 685
 686         printk(KERN_NOTICE "%s Ver. %s\n", DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
 687         printk(KERN_NOTICE "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
 688
 689         udev = usb_get_dev(udev);
 690         netdev = alloc_etherdev(sizeof(struct vnt_private));
 691         if (!netdev) {
 692                 printk(KERN_ERR DEVICE_NAME ": allocate net device failed\n");
 693                 rc = -ENOMEM;
 694                 goto err_nomem;
 695         }
 696
 697         pDevice = netdev_priv(netdev);
 698         memset(pDevice, 0, sizeof(struct vnt_private));
 699
 700         pDevice->dev = netdev;
 701         pDevice->usb = udev;
 702
 703         device_set_options(pDevice);
 704         spin_lock_init(&pDevice->lock);
 705
 706         pDevice->tx_80211 = device_dma0_tx_80211;
 707         pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
 708
 709         netdev->netdev_ops = &device_netdev_ops;
 710         netdev->wireless_handlers =
 711                 (struct iw_handler_def *) &iwctl_handler_def;
 712
 713         usb_set_intfdata(intf, pDevice);
 714         SET_NETDEV_DEV(netdev, &intf->dev);
 715         memcpy(pDevice->dev->dev_addr, fake_mac, ETH_ALEN);
 716         rc = register_netdev(netdev);
 717         if (rc) {
 718                 printk(KERN_ERR DEVICE_NAME " Failed to register netdev\n");
 719                 goto err_netdev;
 720         }
 721
 722         usb_device_reset(pDevice);
 723
 724         return 0;
 725
 726 err_netdev:
 727         free_netdev(netdev);
 728 err_nomem:
 729         usb_put_dev(udev);
 730
 731         return rc;
 732 }
 733
 734 static void device_free_tx_bufs(struct vnt_private *pDevice)
 735 {
 736     PUSB_SEND_CONTEXT pTxContext;
 737     int ii;
 738
 739     for (ii = 0; ii < pDevice->cbTD; ii++) {
 740
 741         pTxContext = pDevice->apTD[ii];
 742         /* deallocate URBs */
 743         if (pTxContext->pUrb) {
 744             usb_kill_urb(pTxContext->pUrb);
 745             usb_free_urb(pTxContext->pUrb);
 746         }
 747         kfree(pTxContext);
 748     }
 749     return;
 750 }
 751
 752 static void device_free_rx_bufs(struct vnt_private *pDevice)
 753 {
 754     PRCB pRCB;
 755     int ii;
 756
 757     for (ii = 0; ii < pDevice->cbRD; ii++) {
 758
 759         pRCB = pDevice->apRCB[ii];
 760         /* deallocate URBs */
 761         if (pRCB->pUrb) {
 762             usb_kill_urb(pRCB->pUrb);
 763             usb_free_urb(pRCB->pUrb);
 764         }
 765         /* deallocate skb */
 766         if (pRCB->skb)
 767             dev_kfree_skb(pRCB->skb);
 768     }
 769     kfree(pDevice->pRCBMem);
 770
 771     return;
 772 }
 773
 774 static void usb_device_reset(struct vnt_private *pDevice)
 775 {
 776  int status;
 777  status = usb_reset_device(pDevice->usb);
 778         if (status)
 779             printk("usb_device_reset fail status=%d\n",status);
 780         return ;
 781 }
 782
 783 static void device_free_int_bufs(struct vnt_private *pDevice)
 784 {
 785     kfree(pDevice->intBuf.pDataBuf);
 786     return;
 787 }
 788
 789 static bool device_alloc_bufs(struct vnt_private *pDevice)
 790 {
 791
 792     PUSB_SEND_CONTEXT pTxContext;
 793     PRCB pRCB;
 794     int ii;
 795
 796     for (ii = 0; ii < pDevice->cbTD; ii++) {
 797
 798         pTxContext = kmalloc(sizeof(USB_SEND_CONTEXT), GFP_KERNEL);
 799         if (pTxContext == NULL) {
 800             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s : allocate tx usb context failed\n", pDevice->dev->name);
 801             goto free_tx;
 802         }
 803         pDevice->apTD[ii] = pTxContext;
 804         pTxContext->pDevice = (void *) pDevice;
 805         /* allocate URBs */
 806         pTxContext->pUrb = usb_alloc_urb(0, GFP_ATOMIC);
 807         if (pTxContext->pUrb == NULL) {
 808             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "alloc tx urb failed\n");
 809             goto free_tx;
 810         }
 811         pTxContext->bBoolInUse = false;
 812     }
 813
 814     /* allocate RCB mem */
 815         pDevice->pRCBMem = kzalloc((sizeof(RCB) * pDevice->cbRD), GFP_KERNEL);
 816     if (pDevice->pRCBMem == NULL) {
 817         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s : alloc rx usb context failed\n", pDevice->dev->name);
 818         goto free_tx;
 819     }
 820
 821     pDevice->FirstRecvFreeList = NULL;
 822     pDevice->LastRecvFreeList = NULL;
 823     pDevice->FirstRecvMngList = NULL;
 824     pDevice->LastRecvMngList = NULL;
 825     pDevice->NumRecvFreeList = 0;
 826     pRCB = (PRCB) pDevice->pRCBMem;
 827
 828     for (ii = 0; ii < pDevice->cbRD; ii++) {
 829
 830         pDevice->apRCB[ii] = pRCB;
 831         pRCB->pDevice = (void *) pDevice;
 832         /* allocate URBs */
 833         pRCB->pUrb = usb_alloc_urb(0, GFP_ATOMIC);
 834
 835         if (pRCB->pUrb == NULL) {
 836             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR" Failed to alloc rx urb\n");
 837             goto free_rx_tx;
 838         }
 839         pRCB->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
 840         if (pRCB->skb == NULL) {
 841             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR" Failed to alloc rx skb\n");
 842             goto free_rx_tx;
 843         }
 844         pRCB->skb->dev = pDevice->dev;
 845         pRCB->bBoolInUse = false;
 846         EnqueueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList, pRCB);
 847         pDevice->NumRecvFreeList++;
 848         pRCB++;
 849     }
 850
 851         pDevice->pControlURB = usb_alloc_urb(0, GFP_ATOMIC);
 852         if (pDevice->pControlURB == NULL) {
 853             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc control urb\n");
 854             goto free_rx_tx;
 855         }
 856
 857         pDevice->pInterruptURB = usb_alloc_urb(0, GFP_ATOMIC);
 858         if (pDevice->pInterruptURB == NULL) {
 859             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc int urb\n");
 860             usb_free_urb(pDevice->pControlURB);
 861             goto free_rx_tx;
 862         }
 863
 864     pDevice->intBuf.pDataBuf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
 865         if (pDevice->intBuf.pDataBuf == NULL) {
 866             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc int buf\n");
 867             usb_free_urb(pDevice->pControlURB);
 868             usb_free_urb(pDevice->pInterruptURB);
 869             goto free_rx_tx;
 870         }
 871
 872     return true;
 873
 874 free_rx_tx:
 875     device_free_rx_bufs(pDevice);
 876
 877 free_tx:
 878     device_free_tx_bufs(pDevice);
 879
 880         return false;
 881 }
 882
 883 static bool device_init_defrag_cb(struct vnt_private *pDevice)
 884 {
 885         int i;
 886         PSDeFragControlBlock pDeF;
 887
 888     /* Init the fragment ctl entries */
 889     for (i = 0; i < CB_MAX_RX_FRAG; i++) {
 890         pDeF = &(pDevice->sRxDFCB[i]);
 891         if (!device_alloc_frag_buf(pDevice, pDeF)) {
 892             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc frag bufs\n",
 893                 pDevice->dev->name);
 894             goto free_frag;
 895         }
 896     }
 897     pDevice->cbDFCB = CB_MAX_RX_FRAG;
 898     pDevice->cbFreeDFCB = pDevice->cbDFCB;
 899     return true;
 900
 901 free_frag:
 902     device_free_frag_bufs(pDevice);
 903     return false;
 904 }
 905
 906 static void device_free_frag_bufs(struct vnt_private *pDevice)
 907 {
 908         PSDeFragControlBlock pDeF;
 909         int i;
 910
 911     for (i = 0; i < CB_MAX_RX_FRAG; i++) {
 912
 913         pDeF = &(pDevice->sRxDFCB[i]);
 914
 915         if (pDeF->skb)
 916             dev_kfree_skb(pDeF->skb);
 917     }
 918 }
 919
 920 int device_alloc_frag_buf(struct vnt_private *pDevice,
 921                 PSDeFragControlBlock pDeF)
 922 {
 923
 924     pDeF->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
 925     if (pDeF->skb == NULL)
 926         return false;
 927     pDeF->skb->dev = pDevice->dev;
 928
 929     return true;
 930 }
 931
 932 static int  device_open(struct net_device *dev)
 933 {
 934         struct vnt_private *pDevice = netdev_priv(dev);
 935
 936      pDevice->fWPA_Authened = false;
 937
 938     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " device_open...\n");
 939
 940     pDevice->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
 941
 942     if (device_alloc_bufs(pDevice) == false) {
 943         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " device_alloc_bufs fail... \n");
 944         return -ENOMEM;
 945     }
 946
 947     if (device_init_defrag_cb(pDevice)== false) {
 948         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " Initial defragment cb fail \n");
 949         goto free_rx_tx;
 950     }
 951
 952     MP_CLEAR_FLAG(pDevice, fMP_DISCONNECTED);
 953     MP_CLEAR_FLAG(pDevice, fMP_CONTROL_READS);
 954     MP_CLEAR_FLAG(pDevice, fMP_CONTROL_WRITES);
 955     MP_SET_FLAG(pDevice, fMP_POST_READS);
 956     MP_SET_FLAG(pDevice, fMP_POST_WRITES);
 957
 958     /* read config file */
 959     Read_config_file(pDevice);
 960
 961     if (device_init_registers(pDevice, DEVICE_INIT_COLD) == false) {
 962         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " init register fail\n");
 963         goto free_all;
 964     }
 965
 966     device_set_multi(pDevice->dev);
 967
 968     /* init for key management */
 969     KeyvInitTable(pDevice,&pDevice->sKey);
 970         memcpy(pDevice->vnt_mgmt.abyMACAddr,
 971                 pDevice->abyCurrentNetAddr, ETH_ALEN);
 972     memcpy(pDevice->dev->dev_addr, pDevice->abyCurrentNetAddr, ETH_ALEN);
 973     pDevice->bStopTx0Pkt = false;
 974     pDevice->bStopDataPkt = false;
 975     pDevice->bRoaming = false;
 976     pDevice->bIsRoaming = false;
 977     pDevice->bEnableRoaming = false;
 978     if (pDevice->bDiversityRegCtlON) {
 979         device_init_diversity_timer(pDevice);
 980     }
 981
 982     vMgrObjectInit(pDevice);
 983     tasklet_init(&pDevice->RxMngWorkItem, (void *)RXvMngWorkItem, (unsigned long)pDevice);
 984     tasklet_init(&pDevice->ReadWorkItem, (void *)RXvWorkItem, (unsigned long)pDevice);
 985     tasklet_init(&pDevice->EventWorkItem, (void *)INTvWorkItem, (unsigned long)pDevice);
 986         add_timer(&pDevice->vnt_mgmt.sTimerSecondCallback);
 987         pDevice->int_interval = 100;  /* max 100 microframes */
 988     pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
 989
 990     pDevice->bIsRxWorkItemQueued = true;
 991     pDevice->fKillEventPollingThread = false;
 992     pDevice->bEventAvailable = false;
 993
 994    pDevice->bWPADEVUp = false;
 995      pDevice->bwextstep0 = false;
 996      pDevice->bwextstep1 = false;
 997      pDevice->bwextstep2 = false;
 998      pDevice->bwextstep3 = false;
 999      pDevice->bWPASuppWextEnabled = false;
1000     pDevice->byReAssocCount = 0;
1001
1002     RXvWorkItem(pDevice);
1003     INTvWorkItem(pDevice);
1004
1005     /* if WEP key already set by iwconfig but device not yet open */
1006     if ((pDevice->bEncryptionEnable == true) && (pDevice->bTransmitKey == true)) {
1007          spin_lock_irq(&pDevice->lock);
1008          KeybSetDefaultKey( pDevice,
1009                             &(pDevice->sKey),
1010                             pDevice->byKeyIndex | (1 << 31),
1011                             pDevice->uKeyLength,
1012                             NULL,
1013                             pDevice->abyKey,
1014                             KEY_CTL_WEP
1015                           );
1016          spin_unlock_irq(&pDevice->lock);
1017          pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
1018     }
1019
1020         if (pDevice->vnt_mgmt.eConfigMode == WMAC_CONFIG_AP)
1021                 bScheduleCommand((void *) pDevice, WLAN_CMD_RUN_AP, NULL);
1022         else
1023                 bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN, NULL);
1024
1025     netif_stop_queue(pDevice->dev);
1026     pDevice->flags |= DEVICE_FLAGS_OPENED;
1027
1028         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_open success..\n");
1029         return 0;
1030
1031 free_all:
1032     device_free_frag_bufs(pDevice);
1033 free_rx_tx:
1034     device_free_rx_bufs(pDevice);
1035     device_free_tx_bufs(pDevice);
1036     device_free_int_bufs(pDevice);
1037         usb_kill_urb(pDevice->pControlURB);
1038         usb_kill_urb(pDevice->pInterruptURB);
1039     usb_free_urb(pDevice->pControlURB);
1040     usb_free_urb(pDevice->pInterruptURB);
1041
1042     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_open fail.. \n");
1043     return -ENOMEM;
1044 }
1045
1046 static int device_close(struct net_device *dev)
1047 {
1048         struct vnt_private *pDevice = netdev_priv(dev);
1049         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1050         int uu;
1051
1052         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_close1\n");
1053     if (pDevice == NULL)
1054         return -ENODEV;
1055
1056     if (pDevice->bLinkPass) {
1057         bScheduleCommand((void *) pDevice, WLAN_CMD_DISASSOCIATE, NULL);
1058         mdelay(30);
1059     }
1060
1061         memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
1062         pMgmt->bShareKeyAlgorithm = false;
1063         pDevice->bEncryptionEnable = false;
1064         pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
1065         spin_lock_irq(&pDevice->lock);
1066         for (uu = 0; uu < MAX_KEY_TABLE; uu++)
1067                 MACvDisableKeyEntry(pDevice,uu);
1068         spin_unlock_irq(&pDevice->lock);
1069
1070     if ((pDevice->flags & DEVICE_FLAGS_UNPLUG) == false) {
1071         MACbShutdown(pDevice);
1072     }
1073     netif_stop_queue(pDevice->dev);
1074     MP_SET_FLAG(pDevice, fMP_DISCONNECTED);
1075     MP_CLEAR_FLAG(pDevice, fMP_POST_WRITES);
1076     MP_CLEAR_FLAG(pDevice, fMP_POST_READS);
1077     pDevice->fKillEventPollingThread = true;
1078     del_timer(&pDevice->sTimerCommand);
1079     del_timer(&pMgmt->sTimerSecondCallback);
1080
1081     del_timer(&pDevice->sTimerTxData);
1082
1083     if (pDevice->bDiversityRegCtlON) {
1084         del_timer(&pDevice->TimerSQ3Tmax1);
1085         del_timer(&pDevice->TimerSQ3Tmax2);
1086         del_timer(&pDevice->TimerSQ3Tmax3);
1087     }
1088     tasklet_kill(&pDevice->RxMngWorkItem);
1089     tasklet_kill(&pDevice->ReadWorkItem);
1090     tasklet_kill(&pDevice->EventWorkItem);
1091
1092    pDevice->bRoaming = false;
1093    pDevice->bIsRoaming = false;
1094    pDevice->bEnableRoaming = false;
1095     pDevice->bCmdRunning = false;
1096     pDevice->bLinkPass = false;
1097     memset(pMgmt->abyCurrBSSID, 0, 6);
1098     pMgmt->eCurrState = WMAC_STATE_IDLE;
1099
1100     device_free_tx_bufs(pDevice);
1101     device_free_rx_bufs(pDevice);
1102     device_free_int_bufs(pDevice);
1103     device_free_frag_bufs(pDevice);
1104
1105         usb_kill_urb(pDevice->pControlURB);
1106         usb_kill_urb(pDevice->pInterruptURB);
1107     usb_free_urb(pDevice->pControlURB);
1108     usb_free_urb(pDevice->pInterruptURB);
1109
1110     BSSvClearNodeDBTable(pDevice, 0);
1111     pDevice->flags &=(~DEVICE_FLAGS_OPENED);
1112
1113     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_close2 \n");
1114
1115     return 0;
1116 }
1117
1118 static void vt6656_disconnect(struct usb_interface *intf)
1119 {
1120         struct vnt_private *device = usb_get_intfdata(intf);
1121
1122         if (!device)
1123                 return;
1124
1125         usb_set_intfdata(intf, NULL);
1126         usb_put_dev(interface_to_usbdev(intf));
1127
1128         device->flags |= DEVICE_FLAGS_UNPLUG;
1129
1130         if (device->dev) {
1131                 unregister_netdev(device->dev);
1132                 free_netdev(device->dev);
1133         }
1134
1135 }
1136
1137 static int device_dma0_tx_80211(struct sk_buff *skb, struct net_device *dev)
1138 {
1139         struct vnt_private *pDevice = netdev_priv(dev);
1140
1141         spin_lock_irq(&pDevice->lock);
1142
1143         if (unlikely(pDevice->bStopTx0Pkt))
1144                 dev_kfree_skb_irq(skb);
1145         else
1146                 vDMA0_tx_80211(pDevice, skb);
1147
1148         spin_unlock_irq(&pDevice->lock);
1149
1150         return NETDEV_TX_OK;
1151 }
1152
1153 static int device_xmit(struct sk_buff *skb, struct net_device *dev)
1154 {
1155         struct vnt_private *pDevice = netdev_priv(dev);
1156         struct net_device_stats *stats = &pDevice->stats;
1157
1158         spin_lock_irq(&pDevice->lock);
1159
1160         netif_stop_queue(dev);
1161
1162         if (!pDevice->bLinkPass) {
1163                 dev_kfree_skb_irq(skb);
1164                 goto out;
1165         }
1166
1167         if (pDevice->bStopDataPkt) {
1168                 dev_kfree_skb_irq(skb);
1169                 stats->tx_dropped++;
1170                 goto out;
1171         }
1172
1173         if (nsDMA_tx_packet(pDevice, TYPE_AC0DMA, skb)) {
1174                 if (netif_queue_stopped(dev))
1175                         netif_wake_queue(dev);
1176         }
1177
1178 out:
1179         spin_unlock_irq(&pDevice->lock);
1180
1181         return NETDEV_TX_OK;
1182 }
1183
1184 static unsigned const ethernet_polynomial = 0x04c11db7U;
1185 static inline u32 ether_crc(int length, unsigned char *data)
1186 {
1187     int crc = -1;
1188
1189     while(--length >= 0) {
1190         unsigned char current_octet = *data++;
1191         int bit;
1192         for (bit = 0; bit < 8; bit++, current_octet >>= 1) {
1193             crc = (crc << 1) ^
1194                 ((crc < 0) ^ (current_octet & 1) ? ethernet_polynomial : 0);
1195         }
1196     }
1197     return crc;
1198 }
1199
1200 /* find out the start position of str2 from str1 */
1201 static unsigned char *kstrstr(const unsigned char *str1,
1202                               const unsigned char *str2) {
1203   int str1_len = strlen(str1);
1204   int str2_len = strlen(str2);
1205
1206   while (str1_len >= str2_len) {
1207        str1_len--;
1208       if(memcmp(str1,str2,str2_len)==0)
1209         return (unsigned char *) str1;
1210         str1++;
1211   }
1212   return NULL;
1213 }
1214
1215 static int Config_FileGetParameter(unsigned char *string,
1216                                    unsigned char *dest,
1217                                    unsigned char *source)
1218 {
1219   unsigned char buf1[100];
1220   unsigned char buf2[100];
1221   unsigned char *start_p = NULL, *end_p = NULL, *tmp_p = NULL;
1222   int ii;
1223
1224     memset(buf1,0,100);
1225     strcat(buf1, string);
1226     strcat(buf1, "=");
1227     source+=strlen(buf1);
1228
1229     /* find target string start point */
1230     start_p = kstrstr(source,buf1);
1231     if (start_p == NULL)
1232         return false;
1233
1234     /* check if current config line is marked by "#" */
1235     for (ii = 1; ; ii++) {
1236         if (memcmp(start_p - ii, "\n", 1) == 0)
1237                 break;
1238         if (memcmp(start_p - ii, "#", 1) == 0)
1239                 return false;
1240     }
1241
1242     /* find target string end point */
1243      end_p = kstrstr(start_p,"\n");
1244      if (end_p == NULL) {       /* can't find "\n", but don't care */
1245              end_p = start_p + strlen(start_p);   /* no include "\n" */
1246      }
1247
1248    memset(buf2,0,100);
1249    memcpy(buf2, start_p, end_p-start_p); /* get the target line */
1250    buf2[end_p-start_p]='\0';
1251
1252    /* find value */
1253    start_p = kstrstr(buf2,"=");
1254    if (start_p == NULL)
1255       return false;
1256    memset(buf1,0,100);
1257    strcpy(buf1,start_p+1);
1258
1259    /* except space */
1260   tmp_p = buf1;
1261   while(*tmp_p != 0x00) {
1262         if(*tmp_p==' ')
1263             tmp_p++;
1264          else
1265           break;
1266   }
1267
1268    memcpy(dest,tmp_p,strlen(tmp_p));
1269  return true;
1270 }
1271
1272 /* if read fails, return NULL, or return data pointer */
1273 static unsigned char *Config_FileOperation(struct vnt_private *pDevice)
1274 {
1275         unsigned char *buffer = kmalloc(1024, GFP_KERNEL);
1276         struct file   *file;
1277
1278         if (!buffer) {
1279                 printk("allocate mem for file fail?\n");
1280                 return NULL;
1281         }
1282
1283         file = filp_open(CONFIG_PATH, O_RDONLY, 0);
1284         if (IS_ERR(file)) {
1285                 kfree(buffer);
1286                 printk("Config_FileOperation file Not exist\n");
1287                 return NULL;
1288         }
1289
1290         if (kernel_read(file, 0, buffer, 1024) < 0) {
1291                 printk("read file error?\n");
1292                 kfree(buffer);
1293                 buffer = NULL;
1294         }
1295
1296         fput(file);
1297         return buffer;
1298 }
1299
1300 /* return --->-1:fail; >=0:successful */
1301 static int Read_config_file(struct vnt_private *pDevice)
1302 {
1303         int result = 0;
1304         unsigned char tmpbuffer[100];
1305         unsigned char *buffer = NULL;
1306
1307         /* init config setting */
1308  pDevice->config_file.ZoneType = -1;
1309  pDevice->config_file.eAuthenMode = -1;
1310  pDevice->config_file.eEncryptionStatus = -1;
1311
1312   buffer = Config_FileOperation(pDevice);
1313   if (buffer == NULL) {
1314      result =-1;
1315      return result;
1316   }
1317
1318 /* get zonetype */
1319 {
1320     memset(tmpbuffer,0,sizeof(tmpbuffer));
1321     if(Config_FileGetParameter("ZONETYPE",tmpbuffer,buffer) ==true) {
1322     if(memcmp(tmpbuffer,"USA",3)==0) {
1323       pDevice->config_file.ZoneType=ZoneType_USA;
1324     }
1325     else if(memcmp(tmpbuffer,"JAPAN",5)==0) {
1326       pDevice->config_file.ZoneType=ZoneType_Japan;
1327     }
1328     else if(memcmp(tmpbuffer,"EUROPE",6)==0) {
1329      pDevice->config_file.ZoneType=ZoneType_Europe;
1330     }
1331     else {
1332       printk("Unknown Zonetype[%s]?\n",tmpbuffer);
1333    }
1334  }
1335 }
1336
1337 /* get other parameter */
1338   {
1339         memset(tmpbuffer,0,sizeof(tmpbuffer));
1340        if(Config_FileGetParameter("AUTHENMODE",tmpbuffer,buffer)==true) {
1341          pDevice->config_file.eAuthenMode = (int) simple_strtol(tmpbuffer, NULL, 10);
1342        }
1343
1344         memset(tmpbuffer,0,sizeof(tmpbuffer));
1345        if(Config_FileGetParameter("ENCRYPTIONMODE",tmpbuffer,buffer)==true) {
1346          pDevice->config_file.eEncryptionStatus= (int) simple_strtol(tmpbuffer, NULL, 10);
1347        }
1348   }
1349
1350   kfree(buffer);
1351   return result;
1352 }
1353
1354 static void device_set_multi(struct net_device *dev)
1355 {
1356         struct vnt_private *pDevice = netdev_priv(dev);
1357         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1358         struct netdev_hw_addr *ha;
1359         u32 mc_filter[2];
1360         int ii;
1361         u8 pbyData[8] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1362         u8 byTmpMode = 0;
1363         int rc;
1364
1365         spin_lock_irq(&pDevice->lock);
1366     rc = CONTROLnsRequestIn(pDevice,
1367                             MESSAGE_TYPE_READ,
1368                             MAC_REG_RCR,
1369                             MESSAGE_REQUEST_MACREG,
1370                             1,
1371                             &byTmpMode
1372                             );
1373     if (rc == 0) pDevice->byRxMode = byTmpMode;
1374
1375     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pDevice->byRxMode in= %x\n", pDevice->byRxMode);
1376
1377     if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
1378         DBG_PRT(MSG_LEVEL_ERR,KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
1379         /* unconditionally log net taps */
1380         pDevice->byRxMode |= (RCR_MULTICAST|RCR_BROADCAST|RCR_UNICAST);
1381     }
1382     else if ((netdev_mc_count(dev) > pDevice->multicast_limit) ||
1383              (dev->flags & IFF_ALLMULTI)) {
1384         CONTROLnsRequestOut(pDevice,
1385                             MESSAGE_TYPE_WRITE,
1386                             MAC_REG_MAR0,
1387                             MESSAGE_REQUEST_MACREG,
1388                             8,
1389                             pbyData
1390                             );
1391         pDevice->byRxMode |= (RCR_MULTICAST|RCR_BROADCAST);
1392     }
1393     else {
1394         memset(mc_filter, 0, sizeof(mc_filter));
1395         netdev_for_each_mc_addr(ha, dev) {
1396             int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
1397             mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
1398         }
1399         for (ii = 0; ii < 4; ii++) {
1400              MACvWriteMultiAddr(pDevice, ii, *((u8 *)&mc_filter[0] + ii));
1401              MACvWriteMultiAddr(pDevice, ii+ 4, *((u8 *)&mc_filter[1] + ii));
1402         }
1403         pDevice->byRxMode &= ~(RCR_UNICAST);
1404         pDevice->byRxMode |= (RCR_MULTICAST|RCR_BROADCAST);
1405     }
1406
1407     if (pMgmt->eConfigMode == WMAC_CONFIG_AP) {
1408         /*
1409          * If AP mode, don't enable RCR_UNICAST since HW only compares
1410          * addr1 with local MAC
1411          */
1412         pDevice->byRxMode |= (RCR_MULTICAST|RCR_BROADCAST);
1413         pDevice->byRxMode &= ~(RCR_UNICAST);
1414     }
1415     ControlvWriteByte(pDevice, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, pDevice->byRxMode);
1416     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pDevice->byRxMode out= %x\n", pDevice->byRxMode);
1417         spin_unlock_irq(&pDevice->lock);
1418
1419 }
1420
1421 static struct net_device_stats *device_get_stats(struct net_device *dev)
1422 {
1423         struct vnt_private *pDevice = netdev_priv(dev);
1424
1425         return &pDevice->stats;
1426 }
1427
1428 static int device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1429 {
1430         struct vnt_private *pDevice = netdev_priv(dev);
1431         struct iwreq *wrq = (struct iwreq *) rq;
1432         int rc = 0;
1433
1434         switch (cmd) {
1435
1436         case IOCTL_CMD_HOSTAPD:
1437
1438                 if (!(pDevice->flags & DEVICE_FLAGS_OPENED))
1439                         rc = -EFAULT;
1440
1441                 rc = vt6656_hostap_ioctl(pDevice, &wrq->u.data);
1442                 break;
1443
1444         case SIOCETHTOOL:
1445                 return ethtool_ioctl(dev, (void *) rq->ifr_data);
1446
1447         }
1448
1449         return rc;
1450 }
1451
1452 static int ethtool_ioctl(struct net_device *dev, void *useraddr)
1453 {
1454         u32 ethcmd;
1455
1456         if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1457                 return -EFAULT;
1458
1459         switch (ethcmd) {
1460         case ETHTOOL_GDRVINFO: {
1461                 struct ethtool_drvinfo info = {ETHTOOL_GDRVINFO};
1462                 strncpy(info.driver, DEVICE_NAME, sizeof(info.driver)-1);
1463                 strncpy(info.version, DEVICE_VERSION, sizeof(info.version)-1);
1464                 if (copy_to_user(useraddr, &info, sizeof(info)))
1465                         return -EFAULT;
1466                 return 0;
1467         }
1468
1469         }
1470
1471         return -EOPNOTSUPP;
1472 }
1473
1474 MODULE_DEVICE_TABLE(usb, vt6656_table);
1475
1476 static struct usb_driver vt6656_driver = {
1477         .name =         DEVICE_NAME,
1478         .probe =        vt6656_probe,
1479         .disconnect =   vt6656_disconnect,
1480         .id_table =     vt6656_table,
1481 #ifdef CONFIG_PM
1482         .suspend = vt6656_suspend,
1483         .resume = vt6656_resume,
1484 #endif /* CONFIG_PM */
1485 };
1486
1487 module_usb_driver(vt6656_driver);