drivers/staging/otus/wwrap.c

   1 /*
   2  * Copyright (c) 2007-2008 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 /*  Module Name : wwrap.c                                               */
  17 /*  Abstract                                                            */
  18 /*      This module contains wrapper functions.                         */
  19 /*                                                                      */
  20 /*  NOTES                                                               */
  21 /*      Platform dependent.                                             */
  22 /*                                                                      */
  23
  24 /* Please include your header files here */
  25 #include "oal_dt.h"
  26 #include "usbdrv.h"
  27
  28 #include <linux/netlink.h>
  29
  30 #if WIRELESS_EXT > 12
  31 #include <net/iw_handler.h>
  32 #endif
  33
  34 extern void zfiRecv80211(zdev_t* dev, zbuf_t* buf, struct zsAdditionInfo* addInfo);
  35 extern void zfCoreRecv(zdev_t* dev, zbuf_t* buf, struct zsAdditionInfo* addInfo);
  36 extern void zfIdlChkRsp(zdev_t* dev, u32_t* rsp, u16_t rspLen);
  37 extern void zfIdlRsp(zdev_t* dev, u32_t *rsp, u16_t rspLen);
  38
  39
  40
  41 //extern struct zsWdsStruct wds[ZM_WDS_PORT_NUMBER];
  42 extern struct zsVapStruct vap[ZM_VAP_PORT_NUMBER];
  43
  44 u32_t zfLnxUsbSubmitTxData(zdev_t* dev);
  45 u32_t zfLnxUsbIn(zdev_t* dev, urb_t *urb, zbuf_t *buf);
  46 u32_t zfLnxSubmitRegInUrb(zdev_t *dev);
  47 u32_t zfLnxUsbSubmitBulkUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
  48         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context);
  49 u32_t zfLnxUsbSubmitIntUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
  50         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context,
  51         u32_t interval);
  52
  53 u16_t zfLnxGetFreeTxUrb(zdev_t *dev)
  54 {
  55     struct usbdrv_private *macp = dev->ml_priv;
  56     u16_t idx;
  57     unsigned long irqFlag;
  58
  59     spin_lock_irqsave(&macp->cs_lock, irqFlag);
  60
  61     //idx = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));
  62
  63     //if (idx != macp->TxUrbHead)
  64     if (macp->TxUrbCnt != 0)
  65     {
  66         idx = macp->TxUrbTail;
  67         macp->TxUrbTail = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));
  68         macp->TxUrbCnt--;
  69     }
  70     else
  71     {
  72         //printk(KERN_ERR "macp->TxUrbCnt: %d\n", macp->TxUrbCnt);
  73         idx = 0xffff;
  74     }
  75
  76     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
  77     return idx;
  78 }
  79
  80 void zfLnxPutTxUrb(zdev_t *dev)
  81 {
  82     struct usbdrv_private *macp = dev->ml_priv;
  83     u16_t idx;
  84     unsigned long irqFlag;
  85
  86     spin_lock_irqsave(&macp->cs_lock, irqFlag);
  87
  88     idx = ((macp->TxUrbHead + 1) & (ZM_MAX_TX_URB_NUM - 1));
  89
  90     //if (idx != macp->TxUrbTail)
  91     if (macp->TxUrbCnt < ZM_MAX_TX_URB_NUM)
  92     {
  93         macp->TxUrbHead = idx;
  94         macp->TxUrbCnt++;
  95     }
  96     else
  97     {
  98         printk("UsbTxUrbQ inconsistent: TxUrbHead: %d, TxUrbTail: %d\n",
  99                 macp->TxUrbHead, macp->TxUrbTail);
 100     }
 101
 102     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 103 }
 104
 105 u16_t zfLnxCheckTxBufferCnt(zdev_t *dev)
 106 {
 107     struct usbdrv_private *macp = dev->ml_priv;
 108     u16_t TxBufCnt;
 109     unsigned long irqFlag;
 110
 111     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 112
 113     TxBufCnt = macp->TxBufCnt;
 114
 115     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 116     return TxBufCnt;
 117 }
 118
 119 UsbTxQ_t *zfLnxGetUsbTxBuffer(zdev_t *dev)
 120 {
 121     struct usbdrv_private *macp = dev->ml_priv;
 122     u16_t idx;
 123     UsbTxQ_t *TxQ;
 124     unsigned long irqFlag;
 125
 126     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 127
 128     idx = ((macp->TxBufHead+1) & (ZM_MAX_TX_BUF_NUM - 1));
 129
 130     //if (idx != macp->TxBufTail)
 131     if (macp->TxBufCnt > 0)
 132     {
 133         //printk("CWY - zfwGetUsbTxBuffer ,macp->TxBufCnt = %d\n", macp->TxBufCnt);
 134         TxQ = (UsbTxQ_t *)&(macp->UsbTxBufQ[macp->TxBufHead]);
 135         macp->TxBufHead = ((macp->TxBufHead+1) & (ZM_MAX_TX_BUF_NUM - 1));
 136         macp->TxBufCnt--;
 137     }
 138     else
 139     {
 140         if (macp->TxBufHead != macp->TxBufTail)
 141         {
 142             printk(KERN_ERR "zfwGetUsbTxBuf UsbTxBufQ inconsistent: TxBufHead: %d, TxBufTail: %d\n",
 143                     macp->TxBufHead, macp->TxBufTail);
 144         }
 145
 146         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 147         return NULL;
 148     }
 149
 150     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 151     return TxQ;
 152 }
 153
 154 u16_t zfLnxPutUsbTxBuffer(zdev_t *dev, u8_t *hdr, u16_t hdrlen,
 155         u8_t *snap, u16_t snapLen, u8_t *tail, u16_t tailLen,
 156         zbuf_t *buf, u16_t offset)
 157 {
 158     struct usbdrv_private *macp = dev->ml_priv;
 159     u16_t idx;
 160     UsbTxQ_t *TxQ;
 161     unsigned long irqFlag;
 162
 163     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 164
 165     idx = ((macp->TxBufTail+1) & (ZM_MAX_TX_BUF_NUM - 1));
 166
 167     /* For Tx debug */
 168     //zm_assert(macp->TxBufCnt >= 0); // deleted because of always true
 169
 170     //if (idx != macp->TxBufHead)
 171     if (macp->TxBufCnt < ZM_MAX_TX_BUF_NUM)
 172     {
 173         //printk("CWY - zfwPutUsbTxBuffer ,macp->TxBufCnt = %d\n", macp->TxBufCnt);
 174         TxQ = (UsbTxQ_t *)&(macp->UsbTxBufQ[macp->TxBufTail]);
 175         memcpy(TxQ->hdr, hdr, hdrlen);
 176         TxQ->hdrlen = hdrlen;
 177         memcpy(TxQ->snap, snap, snapLen);
 178         TxQ->snapLen = snapLen;
 179         memcpy(TxQ->tail, tail, tailLen);
 180         TxQ->tailLen = tailLen;
 181         TxQ->buf = buf;
 182         TxQ->offset = offset;
 183
 184         macp->TxBufTail = ((macp->TxBufTail+1) & (ZM_MAX_TX_BUF_NUM - 1));
 185         macp->TxBufCnt++;
 186     }
 187     else
 188     {
 189         printk(KERN_ERR "zfLnxPutUsbTxBuffer UsbTxBufQ inconsistent: TxBufHead: %d, TxBufTail: %d, TxBufCnt: %d\n",
 190             macp->TxBufHead, macp->TxBufTail, macp->TxBufCnt);
 191         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 192         return 0xffff;
 193     }
 194
 195     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 196     return 0;
 197 }
 198
 199 zbuf_t *zfLnxGetUsbRxBuffer(zdev_t *dev)
 200 {
 201     struct usbdrv_private *macp = dev->ml_priv;
 202     //u16_t idx;
 203     zbuf_t *buf;
 204     unsigned long irqFlag;
 205
 206     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 207
 208     //idx = ((macp->RxBufHead+1) & (ZM_MAX_RX_URB_NUM - 1));
 209
 210     //if (idx != macp->RxBufTail)
 211     if (macp->RxBufCnt != 0)
 212     {
 213         buf = macp->UsbRxBufQ[macp->RxBufHead];
 214         macp->RxBufHead = ((macp->RxBufHead+1) & (ZM_MAX_RX_URB_NUM - 1));
 215         macp->RxBufCnt--;
 216     }
 217     else
 218     {
 219         printk("RxBufQ inconsistent: RxBufHead: %d, RxBufTail: %d\n",
 220                 macp->RxBufHead, macp->RxBufTail);
 221         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 222         return NULL;
 223     }
 224
 225     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 226     return buf;
 227 }
 228
 229 u32_t zfLnxPutUsbRxBuffer(zdev_t *dev, zbuf_t *buf)
 230 {
 231     struct usbdrv_private *macp = dev->ml_priv;
 232     u16_t idx;
 233     unsigned long irqFlag;
 234
 235     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 236
 237     idx = ((macp->RxBufTail+1) & (ZM_MAX_RX_URB_NUM - 1));
 238
 239     //if (idx != macp->RxBufHead)
 240     if (macp->RxBufCnt != ZM_MAX_RX_URB_NUM)
 241     {
 242         macp->UsbRxBufQ[macp->RxBufTail] = buf;
 243         macp->RxBufTail = idx;
 244         macp->RxBufCnt++;
 245     }
 246     else
 247     {
 248         printk("RxBufQ inconsistent: RxBufHead: %d, RxBufTail: %d\n",
 249                 macp->RxBufHead, macp->RxBufTail);
 250         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 251         return 0xffff;
 252     }
 253
 254     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 255     return 0;
 256 }
 257
 258 void zfLnxUsbDataOut_callback(urb_t *urb)
 259 {
 260     zdev_t* dev = urb->context;
 261     //UsbTxQ_t *TxData;
 262
 263     /* Give the urb back */
 264     zfLnxPutTxUrb(dev);
 265
 266     /* Check whether there is any pending buffer needed */
 267     /* to be sent */
 268     if (zfLnxCheckTxBufferCnt(dev) != 0)
 269     {
 270         //TxData = zfwGetUsbTxBuffer(dev);
 271
 272         //if (TxData == NULL)
 273         //{
 274         //    printk("Get a NULL buffer from zfwGetUsbTxBuffer\n");
 275         //    return;
 276         //}
 277         //else
 278         //{
 279             zfLnxUsbSubmitTxData(dev);
 280         //}
 281     }
 282 }
 283
 284 void zfLnxUsbDataIn_callback(urb_t *urb)
 285 {
 286     zdev_t* dev = urb->context;
 287     struct usbdrv_private *macp = dev->ml_priv;
 288     zbuf_t *buf;
 289     zbuf_t *new_buf;
 290     int status;
 291
 292 #if ZM_USB_STREAM_MODE == 1
 293     static int remain_len = 0, check_pad = 0, check_len = 0;
 294     int index = 0;
 295     int chk_idx;
 296     u16_t pkt_len;
 297     u16_t pkt_tag;
 298     u16_t ii;
 299     zbuf_t *rxBufPool[8];
 300     u16_t rxBufPoolIndex = 0;
 301 #endif
 302
 303     /* Check status for URB */
 304     if (urb->status != 0){
 305         printk("zfLnxUsbDataIn_callback() : status=0x%x\n", urb->status);
 306         if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET)
 307             && (urb->status != -ESHUTDOWN))
 308         {
 309                 if (urb->status == -EPIPE){
 310                     //printk(KERN_ERR "nonzero read bulk status received: -EPIPE");
 311                     status = -1;
 312                 }
 313
 314                 if (urb->status == -EPROTO){
 315                     //printk(KERN_ERR "nonzero read bulk status received: -EPROTO");
 316                     status = -1;
 317                 }
 318         }
 319
 320         //printk(KERN_ERR "urb->status: 0x%08x\n", urb->status);
 321
 322         /* Dequeue skb buffer */
 323         buf = zfLnxGetUsbRxBuffer(dev);
 324         dev_kfree_skb_any(buf);
 325         #if 0
 326         /* Enqueue skb buffer */
 327         zfLnxPutUsbRxBuffer(dev, buf);
 328
 329         /* Submit a Rx urb */
 330         zfLnxUsbIn(dev, urb, buf);
 331         #endif
 332         return;
 333     }
 334
 335     if (urb->actual_length == 0)
 336     {
 337         printk(KERN_ERR "Get an URB whose length is zero");
 338         status = -1;
 339     }
 340
 341     /* Dequeue skb buffer */
 342     buf = zfLnxGetUsbRxBuffer(dev);
 343
 344     //zfwBufSetSize(dev, buf, urb->actual_length);
 345 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 346     buf->tail = 0;
 347     buf->len = 0;
 348 #else
 349     buf->tail = buf->data;
 350     buf->len = 0;
 351 #endif
 352
 353     BUG_ON((buf->tail + urb->actual_length) > buf->end);
 354
 355     skb_put(buf, urb->actual_length);
 356
 357 #if ZM_USB_STREAM_MODE == 1
 358     if (remain_len != 0)
 359     {
 360         zbuf_t *remain_buf = macp->reamin_buf;
 361
 362         index = remain_len;
 363         remain_len -= check_pad;
 364
 365         /*  Copy data */
 366         memcpy(&(remain_buf->data[check_len]), buf->data, remain_len);
 367         check_len += remain_len;
 368         remain_len = 0;
 369
 370         rxBufPool[rxBufPoolIndex++] = remain_buf;
 371     }
 372
 373     while(index < urb->actual_length)
 374     {
 375         pkt_len = buf->data[index] + (buf->data[index+1] << 8);
 376         pkt_tag = buf->data[index+2] + (buf->data[index+3] << 8);
 377
 378         if (pkt_tag == 0x4e00)
 379         {
 380             int pad_len;
 381
 382             //printk("Get a packet, index: %d, pkt_len: 0x%04x\n", index, pkt_len);
 383             #if 0
 384             /* Dump data */
 385             for (ii = index; ii < pkt_len+4;)
 386             {
 387                 printk("%02x ", (buf->data[ii] & 0xff));
 388
 389                 if ((++ii % 16) == 0)
 390                     printk("\n");
 391             }
 392
 393             printk("\n");
 394             #endif
 395
 396             pad_len = 4 - (pkt_len & 0x3);
 397
 398             if(pad_len == 4)
 399                 pad_len = 0;
 400
 401             chk_idx = index;
 402             index = index + 4 + pkt_len + pad_len;
 403
 404             if (index > ZM_MAX_RX_BUFFER_SIZE)
 405             {
 406                 remain_len = index - ZM_MAX_RX_BUFFER_SIZE; // - pad_len;
 407                 check_len = ZM_MAX_RX_BUFFER_SIZE - chk_idx - 4;
 408                 check_pad = pad_len;
 409
 410                 /* Allocate a skb buffer */
 411                 //new_buf = zfwBufAllocate(dev, ZM_MAX_RX_BUFFER_SIZE);
 412                 new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 413
 414                 /* Set skb buffer length */
 415             #ifdef NET_SKBUFF_DATA_USES_OFFSET
 416                 new_buf->tail = 0;
 417                 new_buf->len = 0;
 418             #else
 419                 new_buf->tail = new_buf->data;
 420                 new_buf->len = 0;
 421             #endif
 422
 423                 skb_put(new_buf, pkt_len);
 424
 425                 /* Copy the buffer */
 426                 memcpy(new_buf->data, &(buf->data[chk_idx+4]), check_len);
 427
 428                 /* Record the buffer pointer */
 429                 macp->reamin_buf = new_buf;
 430             }
 431             else
 432             {
 433         #ifdef ZM_DONT_COPY_RX_BUFFER
 434                 if (rxBufPoolIndex == 0)
 435                 {
 436                     new_buf = skb_clone(buf, GFP_ATOMIC);
 437
 438                     new_buf->data = &(buf->data[chk_idx+4]);
 439                     new_buf->len = pkt_len;
 440                 }
 441                 else
 442                 {
 443         #endif
 444                 /* Allocate a skb buffer */
 445                 new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 446
 447                 /* Set skb buffer length */
 448             #ifdef NET_SKBUFF_DATA_USES_OFFSET
 449                 new_buf->tail = 0;
 450                 new_buf->len = 0;
 451             #else
 452                 new_buf->tail = new_buf->data;
 453                 new_buf->len = 0;
 454             #endif
 455
 456                 skb_put(new_buf, pkt_len);
 457
 458                 /* Copy the buffer */
 459                 memcpy(new_buf->data, &(buf->data[chk_idx+4]), pkt_len);
 460
 461         #ifdef ZM_DONT_COPY_RX_BUFFER
 462                 }
 463         #endif
 464                 rxBufPool[rxBufPoolIndex++] = new_buf;
 465             }
 466         }
 467         else
 468         {
 469             printk(KERN_ERR "Can't find tag, pkt_len: 0x%04x, tag: 0x%04x\n", pkt_len, pkt_tag);
 470
 471             /* Free buffer */
 472             dev_kfree_skb_any(buf);
 473
 474             /* Allocate a skb buffer */
 475             new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 476
 477             /* Enqueue skb buffer */
 478             zfLnxPutUsbRxBuffer(dev, new_buf);
 479
 480             /* Submit a Rx urb */
 481             zfLnxUsbIn(dev, urb, new_buf);
 482
 483             return;
 484         }
 485     }
 486
 487     /* Free buffer */
 488     dev_kfree_skb_any(buf);
 489 #endif
 490
 491     /* Allocate a skb buffer */
 492     new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 493
 494     /* Enqueue skb buffer */
 495     zfLnxPutUsbRxBuffer(dev, new_buf);
 496
 497     /* Submit a Rx urb */
 498     zfLnxUsbIn(dev, urb, new_buf);
 499
 500 #if ZM_USB_STREAM_MODE == 1
 501     for(ii = 0; ii < rxBufPoolIndex; ii++)
 502     {
 503         macp->usbCbFunctions.zfcbUsbRecv(dev, rxBufPool[ii]);
 504     }
 505 #else
 506     /* pass data to upper layer */
 507     macp->usbCbFunctions.zfcbUsbRecv(dev, buf);
 508 #endif
 509 }
 510
 511 void zfLnxUsbRegOut_callback(urb_t *urb)
 512 {
 513     //dev_t* dev = urb->context;
 514
 515     //printk(KERN_ERR "zfwUsbRegOut_callback\n");
 516 }
 517
 518 void zfLnxUsbRegIn_callback(urb_t *urb)
 519 {
 520     zdev_t* dev = urb->context;
 521     u32_t rsp[64/4];
 522     int status;
 523     struct usbdrv_private *macp = dev->ml_priv;
 524
 525     /* Check status for URB */
 526     if (urb->status != 0){
 527         printk("zfLnxUsbRegIn_callback() : status=0x%x\n", urb->status);
 528         if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET)
 529             && (urb->status != -ESHUTDOWN))
 530         {
 531                 if (urb->status == -EPIPE){
 532                     //printk(KERN_ERR "nonzero read bulk status received: -EPIPE");
 533                     status = -1;
 534                 }
 535
 536                 if (urb->status == -EPROTO){
 537                     //printk(KERN_ERR "nonzero read bulk status received: -EPROTO");
 538                     status = -1;
 539                 }
 540         }
 541
 542         //printk(KERN_ERR "urb->status: 0x%08x\n", urb->status);
 543         return;
 544     }
 545
 546     if (urb->actual_length == 0)
 547     {
 548         printk(KERN_ERR "Get an URB whose length is zero");
 549         status = -1;
 550     }
 551
 552     /* Copy data into respone buffer */
 553     memcpy(rsp, macp->regUsbReadBuf, urb->actual_length);
 554
 555     /* Notify to upper layer */
 556     //zfIdlChkRsp(dev, rsp, (u16_t)urb->actual_length);
 557     //zfiUsbRegIn(dev, rsp, (u16_t)urb->actual_length);
 558     macp->usbCbFunctions.zfcbUsbRegIn(dev, rsp, (u16_t)urb->actual_length);
 559
 560     /* Issue another USB IN URB */
 561     zfLnxSubmitRegInUrb(dev);
 562 }
 563
 564 u32_t zfLnxSubmitRegInUrb(zdev_t *dev)
 565 {
 566     u32_t ret;
 567     struct usbdrv_private *macp = dev->ml_priv;
 568
 569     /* Submit a rx urb */
 570     //ret = zfLnxUsbSubmitBulkUrb(macp->RegInUrb, macp->udev,
 571     //        USB_REG_IN_PIPE, USB_DIR_IN, macp->regUsbReadBuf,
 572     //        ZM_USB_REG_MAX_BUF_SIZE, zfLnxUsbRegIn_callback, dev);
 573     //CWYang(-)
 574     //if (ret != 0)
 575     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);
 576
 577     ret = zfLnxUsbSubmitIntUrb(macp->RegInUrb, macp->udev,
 578             USB_REG_IN_PIPE, USB_DIR_IN, macp->regUsbReadBuf,
 579             ZM_USB_REG_MAX_BUF_SIZE, zfLnxUsbRegIn_callback, dev, 1);
 580
 581     return ret;
 582 }
 583
 584 u32_t zfLnxUsbSubmitTxData(zdev_t* dev)
 585 {
 586     u32_t i;
 587     u32_t ret;
 588     u16_t freeTxUrb;
 589     u8_t *puTxBuf = NULL;
 590     UsbTxQ_t *TxData;
 591     int len = 0;
 592     struct usbdrv_private *macp = dev->ml_priv;
 593 #if ZM_USB_TX_STREAM_MODE == 1
 594     u8_t               ii;
 595     u16_t              offset = 0;
 596     u16_t              usbTxAggCnt;
 597     u16_t              *pUsbTxHdr;
 598     UsbTxQ_t           *TxQPool[ZM_MAX_TX_AGGREGATE_NUM];
 599 #endif
 600
 601     /* First check whether there is a free URB */
 602     freeTxUrb = zfLnxGetFreeTxUrb(dev);
 603
 604     /* If there is no any free Tx Urb */
 605     if (freeTxUrb == 0xffff)
 606     {
 607         //printk(KERN_ERR "Can't get free Tx Urb\n");
 608         //printk("CWY - Can't get free Tx Urb\n");
 609         return 0xffff;
 610     }
 611
 612 #if ZM_USB_TX_STREAM_MODE == 1
 613     usbTxAggCnt = zfLnxCheckTxBufferCnt(dev);
 614
 615     if (usbTxAggCnt >= ZM_MAX_TX_AGGREGATE_NUM)
 616     {
 617        usbTxAggCnt = ZM_MAX_TX_AGGREGATE_NUM;
 618     }
 619     else
 620     {
 621        usbTxAggCnt = 1;
 622     }
 623
 624     //printk("usbTxAggCnt: %d\n", usbTxAggCnt);
 625 #endif
 626
 627 #if ZM_USB_TX_STREAM_MODE == 1
 628     for(ii = 0; ii < usbTxAggCnt; ii++)
 629     {
 630 #endif
 631     /* Dequeue the packet from UsbTxBufQ */
 632     TxData = zfLnxGetUsbTxBuffer(dev);
 633     if (TxData == NULL)
 634     {
 635         /* Give the urb back */
 636         zfLnxPutTxUrb(dev);
 637         return 0xffff;
 638     }
 639
 640     /* Point to the freeTxUrb buffer */
 641     puTxBuf = macp->txUsbBuf[freeTxUrb];
 642
 643 #if ZM_USB_TX_STREAM_MODE == 1
 644     puTxBuf += offset;
 645     pUsbTxHdr = (u16_t *)puTxBuf;
 646
 647     /* Add the packet length and tag information */
 648     *pUsbTxHdr++ = TxData->hdrlen + TxData->snapLen +
 649              (TxData->buf->len - TxData->offset) +  TxData->tailLen;
 650
 651     *pUsbTxHdr++ = 0x697e;
 652
 653     puTxBuf += 4;
 654 #endif // #ifdef ZM_USB_TX_STREAM_MODE
 655
 656     /* Copy WLAN header and packet buffer into USB buffer */
 657     for(i = 0; i < TxData->hdrlen; i++)
 658     {
 659         *puTxBuf++ = TxData->hdr[i];
 660     }
 661
 662     /* Copy SNAP header */
 663     for(i = 0; i < TxData->snapLen; i++)
 664     {
 665         *puTxBuf++ = TxData->snap[i];
 666     }
 667
 668     /* Copy packet buffer */
 669     for(i = 0; i < TxData->buf->len - TxData->offset; i++)
 670     {
 671         //*puTxBuf++ = zmw_rx_buf_readb(dev, TxData->buf, i);
 672         *puTxBuf++ = *(u8_t*)((u8_t*)TxData->buf->data+i+TxData->offset);
 673     }
 674
 675     /* Copy tail */
 676     for(i = 0; i < TxData->tailLen; i++)
 677     {
 678         *puTxBuf++ = TxData->tail[i];
 679     }
 680
 681     len = TxData->hdrlen+TxData->snapLen+TxData->buf->len+TxData->tailLen-TxData->offset;
 682
 683     #if 0
 684     if (TxData->hdrlen != 0)
 685     {
 686         puTxBuf = macp->txUsbBuf[freeTxUrb];
 687         for (i = 0; i < len; i++)
 688         {
 689             printk("%02x ", puTxBuf[i]);
 690             if (i % 16 == 15)
 691                 printk("\n");
 692         }
 693         printk("\n");
 694     }
 695     #endif
 696     #if 0
 697     /* For debug purpose */
 698     if(TxData->hdr[9] & 0x40)
 699     {
 700         int i;
 701         u16_t ctrlLen = TxData->hdr[0] + (TxData->hdr[1] << 8);
 702
 703         if (ctrlLen != len + 4)
 704         {
 705         /* Dump control setting */
 706         for(i = 0; i < 8; i++)
 707         {
 708             printk(KERN_ERR "0x%02x ", TxData->hdr[i]);
 709         }
 710         printk(KERN_ERR "\n");
 711
 712         printk(KERN_ERR "ctrLen: %d, hdrLen: %d, snapLen: %d\n", ctrlLen, TxData->hdrlen, TxData->snapLen);
 713         printk(KERN_ERR "bufLen: %d, tailLen: %d, len: %d\n", TxData->buf->len, TxData->tailLen, len);
 714         }
 715     }
 716     #endif
 717
 718 #if ZM_USB_TX_STREAM_MODE == 1
 719     // Add the Length and Tag
 720     len += 4;
 721
 722     //printk("%d packet, length: %d\n", ii+1, len);
 723
 724     if (ii < (ZM_MAX_TX_AGGREGATE_NUM-1))
 725     {
 726         /* Pad the buffer to firmware descriptor boundary */
 727         offset += (((len-1) / 4) + 1) * 4;
 728     }
 729
 730     if (ii == (ZM_MAX_TX_AGGREGATE_NUM-1))
 731     {
 732         len += offset;
 733     }
 734
 735     TxQPool[ii] = TxData;
 736
 737     //DbgPrint("%d packet, offset: %d\n", ii+1, pUsbTxTransfer->offset);
 738
 739     /* free packet */
 740     //zfBufFree(dev, txData->buf);
 741     }
 742 #endif
 743     //printk("CWY - call zfwUsbSubmitBulkUrb(), len = 0x%d\n", len);
 744     /* Submit a tx urb */
 745     ret = zfLnxUsbSubmitBulkUrb(macp->WlanTxDataUrb[freeTxUrb], macp->udev,
 746             USB_WLAN_TX_PIPE, USB_DIR_OUT, macp->txUsbBuf[freeTxUrb],
 747             len, zfLnxUsbDataOut_callback, dev);
 748     //CWYang(-)
 749     //if (ret != 0)
 750     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);
 751
 752     /* free packet */
 753     //dev_kfree_skb_any(TxData->buf);
 754 #if ZM_USB_TX_STREAM_MODE == 1
 755     for(ii = 0; ii < usbTxAggCnt; ii++)
 756         macp->usbCbFunctions.zfcbUsbOutComplete(dev, TxQPool[ii]->buf, 1, TxQPool[ii]->hdr);
 757 #else
 758     macp->usbCbFunctions.zfcbUsbOutComplete(dev, TxData->buf, 1, TxData->hdr);
 759 #endif
 760
 761     return ret;
 762 }
 763
 764
 765
 766 u32_t zfLnxUsbIn(zdev_t* dev, urb_t *urb, zbuf_t *buf)
 767 {
 768     u32_t ret;
 769     struct usbdrv_private *macp = dev->ml_priv;
 770
 771     /* Submit a rx urb */
 772     ret = zfLnxUsbSubmitBulkUrb(urb, macp->udev, USB_WLAN_RX_PIPE,
 773             USB_DIR_IN, buf->data, ZM_MAX_RX_BUFFER_SIZE,
 774             zfLnxUsbDataIn_callback, dev);
 775     //CWYang(-)
 776     //if (ret != 0)
 777     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);
 778
 779     return ret;
 780 }
 781
 782 u32_t zfLnxUsbWriteReg(zdev_t* dev, u32_t* cmd, u16_t cmdLen)
 783 {
 784     struct usbdrv_private *macp = dev->ml_priv;
 785     u32_t ret;
 786
 787 #ifdef ZM_CONFIG_BIG_ENDIAN
 788     int ii = 0;
 789
 790     for(ii=0; ii<(cmdLen>>2); ii++)
 791         cmd[ii] = cpu_to_le32(cmd[ii]);
 792 #endif
 793
 794     memcpy(macp->regUsbWriteBuf, cmd, cmdLen);
 795
 796     /* Issue an USB Out transfer */
 797     /* Submit a tx urb */
 798     ret = zfLnxUsbSubmitIntUrb(macp->RegOutUrb, macp->udev,
 799             USB_REG_OUT_PIPE, USB_DIR_OUT, macp->regUsbWriteBuf,
 800             cmdLen, zfLnxUsbRegOut_callback, dev, 1);
 801
 802     return ret;
 803 }
 804
 805
 806 u32_t zfLnxUsbOut(zdev_t* dev, u8_t *hdr, u16_t hdrlen, u8_t *snap, u16_t snapLen,
 807         u8_t *tail, u16_t tailLen, zbuf_t *buf, u16_t offset)
 808 {
 809     u32_t ret;
 810     struct usbdrv_private *macp = dev->ml_priv;
 811
 812     /* Check length of tail buffer */
 813     //zm_assert((tailLen <= 16));
 814
 815     /* Enqueue the packet into UsbTxBufQ */
 816     if (zfLnxPutUsbTxBuffer(dev, hdr, hdrlen, snap, snapLen, tail, tailLen, buf, offset) == 0xffff)
 817     {
 818         /* free packet */
 819         //printk("CWY - zfwPutUsbTxBuffer Error, free packet\n");
 820         //dev_kfree_skb_any(buf);
 821         macp->usbCbFunctions.zfcbUsbOutComplete(dev, buf, 0, hdr);
 822         return 0xffff;
 823     }
 824
 825     //return 0;
 826     //printk("CWY - call zfwUsbSubmitTxData()\n");
 827     ret = zfLnxUsbSubmitTxData(dev);
 828     return ret;
 829 }
 830
 831 void zfLnxInitUsbTxQ(zdev_t* dev)
 832 {
 833     struct usbdrv_private *macp = dev->ml_priv;
 834
 835     printk(KERN_ERR "zfwInitUsbTxQ\n");
 836
 837     /* Zero memory for UsbTxBufQ */
 838     memset(macp->UsbTxBufQ, 0, sizeof(UsbTxQ_t) * ZM_MAX_TX_URB_NUM);
 839
 840     macp->TxBufHead = 0;
 841     macp->TxBufTail = 0;
 842     macp->TxUrbHead = 0;
 843     macp->TxUrbTail = 0;
 844     macp->TxUrbCnt = ZM_MAX_TX_URB_NUM;
 845 }
 846
 847 void zfLnxInitUsbRxQ(zdev_t* dev)
 848 {
 849     u16_t i;
 850     zbuf_t *buf;
 851     struct usbdrv_private *macp = dev->ml_priv;
 852
 853     /* Zero memory for UsbRxBufQ */
 854     memset(macp->UsbRxBufQ, 0, sizeof(zbuf_t *) * ZM_MAX_RX_URB_NUM);
 855
 856     macp->RxBufHead = 0;
 857
 858     for (i = 0; i < ZM_MAX_RX_URB_NUM; i++)
 859     {
 860         //buf = zfwBufAllocate(dev, ZM_MAX_RX_BUFFER_SIZE);
 861         buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 862         macp->UsbRxBufQ[i] = buf;
 863     }
 864
 865     //macp->RxBufTail = ZM_MAX_RX_URB_NUM - 1;
 866     macp->RxBufTail = 0;
 867
 868     /* Submit all Rx urbs */
 869     for (i = 0; i < ZM_MAX_RX_URB_NUM; i++)
 870     {
 871         zfLnxPutUsbRxBuffer(dev, macp->UsbRxBufQ[i]);
 872         zfLnxUsbIn(dev, macp->WlanRxDataUrb[i], macp->UsbRxBufQ[i]);
 873     }
 874 }
 875
 876
 877
 878 u32_t zfLnxUsbSubmitBulkUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
 879         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context)
 880 {
 881     u32_t ret;
 882
 883     if(direction == USB_DIR_OUT)
 884     {
 885         usb_fill_bulk_urb(urb, usb, usb_sndbulkpipe(usb, epnum),
 886                 transfer_buffer, buffer_length, complete, context);
 887
 888         urb->transfer_flags |= URB_ZERO_PACKET;
 889     }
 890     else
 891     {
 892         usb_fill_bulk_urb(urb, usb, usb_rcvbulkpipe(usb, epnum),
 893                 transfer_buffer, buffer_length, complete, context);
 894     }
 895
 896     if (epnum == 4)
 897     {
 898         if (urb->hcpriv)
 899         {
 900             //printk("CWY - urb->hcpriv set by unknown reason, reset it\n");
 901             //urb->hcpriv = 0;
 902         }
 903     }
 904
 905     ret = usb_submit_urb(urb, GFP_ATOMIC);
 906     if ((epnum == 4) & (ret != 0))
 907     {
 908         //printk("CWY - ret = %x\n", ret);
 909     }
 910     return ret;
 911 }
 912
 913 u32_t zfLnxUsbSubmitIntUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
 914         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context,
 915         u32_t interval)
 916 {
 917     u32_t ret;
 918
 919     if(direction == USB_DIR_OUT)
 920     {
 921         usb_fill_int_urb(urb, usb, usb_sndbulkpipe(usb, epnum),
 922                 transfer_buffer, buffer_length, complete, context, interval);
 923     }
 924     else
 925     {
 926         usb_fill_int_urb(urb, usb, usb_rcvbulkpipe(usb, epnum),
 927                 transfer_buffer, buffer_length, complete, context, interval);
 928     }
 929
 930     ret = usb_submit_urb(urb, GFP_ATOMIC);
 931
 932     return ret;
 933 }
 934
 935 #ifdef ZM_ENABLE_CENC
 936 int zfLnxCencSendMsg(struct sock *netlink_sk, u_int8_t *msg, int len)
 937 {
 938 #define COMMTYPE_GROUP   8
 939 #define WAI_K_MSG        0x11
 940
 941         int ret = -1;
 942         int size;
 943         unsigned char *old_tail;
 944         struct sk_buff *skb;
 945         struct nlmsghdr *nlh;
 946         char *pos = NULL;
 947
 948         size = NLMSG_SPACE(len);
 949         skb = alloc_skb(size, GFP_ATOMIC);
 950
 951         if(skb == NULL)
 952         {
 953                 printk("dev_alloc_skb failure \n");
 954                 goto out;
 955         }
 956         old_tail = skb->tail;
 957
 958         /*ÌîÐ´Êý¾Ý±¨Ïà¹ØÐÅÏ¢*/
 959         nlh = NLMSG_PUT(skb, 0, 0, WAI_K_MSG, size-sizeof(*nlh));
 960         pos = NLMSG_DATA(nlh);
 961         memset(pos, 0, len);
 962
 963         /*´«Êäµ½ÓÃ»§¿Õ¼äµÄÊý¾Ý*/
 964         memcpy(pos, msg,  len);
 965         /*¼ÆËã¾¹ý×Ö½Ú¶ÔÆäºóµÄÊý¾ÝÊµ¼Ê³¤¶È*/
 966         nlh->nlmsg_len = skb->tail - old_tail;
 967         NETLINK_CB(skb).dst_group = COMMTYPE_GROUP;
 968         netlink_broadcast(netlink_sk, skb, 0, COMMTYPE_GROUP, GFP_ATOMIC);
 969         ret = 0;
 970 out:
 971         return ret;
 972 nlmsg_failure: /*NLMSG_PUT Ê§°Ü£¬Ôò³·ÏúÌ×½Ó×Ö»º´æ*/
 973         kfree_skb(skb);
 974         goto out;
 975
 976 #undef COMMTYPE_GROUP
 977 #undef WAI_K_MSG
 978 }
 979 #endif //ZM_ENABLE_CENC
 980
 981 /* Simply return 0xffff if VAP function is not supported */
 982 u16_t zfLnxGetVapId(zdev_t* dev)
 983 {
 984     u16_t i;
 985
 986     for (i=0; i<ZM_VAP_PORT_NUMBER; i++)
 987     {
 988         if (vap[i].dev == dev)
 989         {
 990             return i;
 991         }
 992     }
 993     return 0xffff;
 994 }
 995
 996 u32_t zfwReadReg(zdev_t* dev, u32_t offset)
 997 {
 998     return 0;
 999 }
1000
1001 #ifndef INIT_WORK
1002 #define work_struct tq_struct
1003
1004 #define schedule_work(a)  schedule_task(a)
1005
1006 #define flush_scheduled_work  flush_scheduled_tasks
1007 #define INIT_WORK(_wq, _routine, _data)  INIT_TQUEUE(_wq, _routine, _data)
1008 #define PREPARE_WORK(_wq, _routine, _data)  PREPARE_TQUEUE(_wq, _routine, _data)
1009 #endif
1010
1011 #define KEVENT_WATCHDOG        0x00000001
1012
1013 u32_t smp_kevent_Lock = 0;
1014
1015 void kevent(struct work_struct *work)
1016 {
1017     struct usbdrv_private *macp =
1018                container_of(work, struct usbdrv_private, kevent);
1019     zdev_t *dev = macp->device;
1020
1021     if (macp == NULL)
1022     {
1023         return;
1024     }
1025
1026     if (test_and_set_bit(0, (void *)&smp_kevent_Lock))
1027     {
1028         //schedule_work(&macp->kevent);
1029         return;
1030     }
1031
1032     down(&macp->ioctl_sem);
1033
1034     if (test_and_clear_bit(KEVENT_WATCHDOG, &macp->kevent_flags))
1035     {
1036     extern u16_t zfHpStartRecv(zdev_t *dev);
1037         //zfiHwWatchDogReinit(dev);
1038         printk(("\n ************ Hw watchDog occur!! ************** \n"));
1039         zfiWlanSuspend(dev);
1040         zfiWlanResume(dev,0);
1041         zfHpStartRecv(dev);
1042     }
1043
1044     clear_bit(0, (void *)&smp_kevent_Lock);
1045     up(&macp->ioctl_sem);
1046 }
1047
1048 /************************************************************************/
1049 /*                                                                      */
1050 /*    FUNCTION DESCRIPTION                 zfLnxCreateThread            */
1051 /*      Create a Thread                                                 */
1052 /*                                                                      */
1053 /*    INPUTS                                                            */
1054 /*      dev : device pointer                                            */
1055 /*                                                                      */
1056 /*    OUTPUTS                                                           */
1057 /*      always 0                                                        */
1058 /*                                                                      */
1059 /*    AUTHOR                                                            */
1060 /*      Yuan-Gu Wei         Atheros Communications, INC.    2007.3      */
1061 /*                                                                      */
1062 /************************************************************************/
1063 u8_t zfLnxCreateThread(zdev_t *dev)
1064 {
1065     struct usbdrv_private *macp = dev->ml_priv;
1066
1067     /* Create Mutex and keventd */
1068     INIT_WORK(&macp->kevent, kevent);
1069     init_MUTEX(&macp->ioctl_sem);
1070
1071     return 0;
1072 }
1073
1074 /************************************************************************/
1075 /*                                                                      */
1076 /*    FUNCTION DESCRIPTION                 zfLnxSignalThread            */
1077 /*      Signal Thread with Flag                                         */
1078 /*                                                                      */
1079 /*    INPUTS                                                            */
1080 /*      dev : device pointer                                            */
1081 /*      flag : signal thread flag                                       */
1082 /*                                                                      */
1083 /*    OUTPUTS                                                           */
1084 /*      none                                                            */
1085 /*                                                                      */
1086 /*    AUTHOR                                                            */
1087 /*      Yuan-Gu Wei         Atheros Communications, INC.    2007.3      */
1088 /*                                                                      */
1089 /************************************************************************/
1090 void zfLnxSignalThread(zdev_t *dev, int flag)
1091 {
1092     struct usbdrv_private *macp = dev->ml_priv;
1093
1094     if (macp == NULL)
1095     {
1096         printk("macp is NULL\n");
1097         return;
1098     }
1099
1100     if (0 && macp->kevent_ready != 1)
1101     {
1102         printk("Kevent not ready\n");
1103         return;
1104     }
1105
1106     set_bit(flag, &macp->kevent_flags);
1107
1108     if (!schedule_work(&macp->kevent))
1109     {
1110         //Fails is Normal
1111         //printk(KERN_ERR "schedule_task failed, flag = %x\n", flag);
1112     }
1113 }
1114
1115 /* Notify wrapper todo redownload firmware and reinit procedure when */
1116 /* hardware watchdog occur : zfiHwWatchDogReinit() */
1117 void zfLnxWatchDogNotify(zdev_t* dev)
1118 {
1119     zfLnxSignalThread(dev, KEVENT_WATCHDOG);
1120 }
1121
1122 /* Query Durantion of Active Scan */
1123 void zfwGetActiveScanDur(zdev_t* dev, u8_t* Dur)
1124 {
1125     *Dur = 30; // default 30 ms
1126 }
1127
1128 void zfwGetShowZeroLengthSSID(zdev_t* dev, u8_t* Dur)
1129 {
1130     *Dur = 0;
1131 }
1132