release/src-rt-6.x.4708/linux/linux-2.6.36/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 #include <linux/slab.h>
  30 #include <net/iw_handler.h>
  31
  32 extern void zfiRecv80211(zdev_t *dev, zbuf_t *buf, struct zsAdditionInfo *addInfo);
  33 extern void zfCoreRecv(zdev_t *dev, zbuf_t *buf, struct zsAdditionInfo *addInfo);
  34 extern void zfIdlChkRsp(zdev_t *dev, u32_t *rsp, u16_t rspLen);
  35 extern void zfIdlRsp(zdev_t *dev, u32_t *rsp, u16_t rspLen);
  36
  37
  38
  39 /*extern struct zsWdsStruct wds[ZM_WDS_PORT_NUMBER];*/
  40 extern struct zsVapStruct vap[ZM_VAP_PORT_NUMBER];
  41
  42 u32_t zfLnxUsbSubmitTxData(zdev_t *dev);
  43 u32_t zfLnxUsbIn(zdev_t *dev, urb_t *urb, zbuf_t *buf);
  44 u32_t zfLnxSubmitRegInUrb(zdev_t *dev);
  45 u32_t zfLnxUsbSubmitBulkUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
  46         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context);
  47 u32_t zfLnxUsbSubmitIntUrb(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 interval);
  50
  51 u16_t zfLnxGetFreeTxUrb(zdev_t *dev)
  52 {
  53     struct usbdrv_private *macp = dev->ml_priv;
  54     u16_t idx;
  55     unsigned long irqFlag;
  56
  57     spin_lock_irqsave(&macp->cs_lock, irqFlag);
  58
  59     /*idx = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));*/
  60
  61     /*if (idx != macp->TxUrbHead)*/
  62     if (macp->TxUrbCnt != 0) {
  63         idx = macp->TxUrbTail;
  64         macp->TxUrbTail = ((macp->TxUrbTail + 1) & (ZM_MAX_TX_URB_NUM - 1));
  65         macp->TxUrbCnt--;
  66         } else {
  67         /*printk(KERN_ERR "macp->TxUrbCnt: %d\n", macp->TxUrbCnt);*/
  68         idx = 0xffff;
  69         }
  70
  71         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
  72     return idx;
  73 }
  74
  75 void zfLnxPutTxUrb(zdev_t *dev)
  76 {
  77     struct usbdrv_private *macp = dev->ml_priv;
  78     u16_t idx;
  79     unsigned long irqFlag;
  80
  81     spin_lock_irqsave(&macp->cs_lock, irqFlag);
  82
  83     idx = ((macp->TxUrbHead + 1) & (ZM_MAX_TX_URB_NUM - 1));
  84
  85     /*if (idx != macp->TxUrbTail)*/
  86     if (macp->TxUrbCnt < ZM_MAX_TX_URB_NUM) {
  87         macp->TxUrbHead = idx;
  88         macp->TxUrbCnt++;
  89     } else {
  90         printk("UsbTxUrbQ inconsistent: TxUrbHead: %d, TxUrbTail: %d\n",
  91         macp->TxUrbHead, macp->TxUrbTail);
  92     }
  93
  94     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
  95 }
  96
  97 u16_t zfLnxCheckTxBufferCnt(zdev_t *dev)
  98 {
  99     struct usbdrv_private *macp = dev->ml_priv;
 100     u16_t TxBufCnt;
 101     unsigned long irqFlag;
 102
 103     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 104
 105     TxBufCnt = macp->TxBufCnt;
 106
 107     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 108     return TxBufCnt;
 109 }
 110
 111 UsbTxQ_t *zfLnxGetUsbTxBuffer(zdev_t *dev)
 112 {
 113     struct usbdrv_private *macp = dev->ml_priv;
 114     u16_t idx;
 115     UsbTxQ_t *TxQ;
 116     unsigned long irqFlag;
 117
 118     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 119
 120     idx = ((macp->TxBufHead+1) & (ZM_MAX_TX_BUF_NUM - 1));
 121
 122     /*if (idx != macp->TxBufTail)*/
 123     if (macp->TxBufCnt > 0) {
 124         /*printk("CWY - zfwGetUsbTxBuffer ,macp->TxBufCnt = %d\n", macp->TxBufCnt);*/
 125         TxQ = (UsbTxQ_t *)&(macp->UsbTxBufQ[macp->TxBufHead]);
 126         macp->TxBufHead = ((macp->TxBufHead+1) & (ZM_MAX_TX_BUF_NUM - 1));
 127         macp->TxBufCnt--;
 128         } else {
 129         if (macp->TxBufHead != macp->TxBufTail) {
 130                 printk(KERN_ERR "zfwGetUsbTxBuf UsbTxBufQ inconsistent: TxBufHead: %d, TxBufTail: %d\n",
 131                 macp->TxBufHead, macp->TxBufTail);
 132         }
 133
 134         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 135         return NULL;
 136     }
 137
 138     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 139     return TxQ;
 140 }
 141
 142 u16_t zfLnxPutUsbTxBuffer(zdev_t *dev, u8_t *hdr, u16_t hdrlen,
 143         u8_t *snap, u16_t snapLen, u8_t *tail, u16_t tailLen,
 144         zbuf_t *buf, u16_t offset)
 145 {
 146     struct usbdrv_private *macp = dev->ml_priv;
 147     u16_t idx;
 148     UsbTxQ_t *TxQ;
 149     unsigned long irqFlag;
 150
 151     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 152
 153     idx = ((macp->TxBufTail+1) & (ZM_MAX_TX_BUF_NUM - 1));
 154
 155     /* For Tx debug */
 156     /*zm_assert(macp->TxBufCnt >= 0); // deleted because of always true*/
 157
 158     /*if (idx != macp->TxBufHead)*/
 159     if (macp->TxBufCnt < ZM_MAX_TX_BUF_NUM) {
 160         /*printk("CWY - zfwPutUsbTxBuffer ,macp->TxBufCnt = %d\n", macp->TxBufCnt);*/
 161         TxQ = (UsbTxQ_t *)&(macp->UsbTxBufQ[macp->TxBufTail]);
 162         memcpy(TxQ->hdr, hdr, hdrlen);
 163         TxQ->hdrlen = hdrlen;
 164         memcpy(TxQ->snap, snap, snapLen);
 165         TxQ->snapLen = snapLen;
 166         memcpy(TxQ->tail, tail, tailLen);
 167         TxQ->tailLen = tailLen;
 168         TxQ->buf = buf;
 169         TxQ->offset = offset;
 170
 171         macp->TxBufTail = ((macp->TxBufTail+1) & (ZM_MAX_TX_BUF_NUM - 1));
 172         macp->TxBufCnt++;
 173         } else {
 174         printk(KERN_ERR "zfLnxPutUsbTxBuffer UsbTxBufQ inconsistent: TxBufHead: %d, TxBufTail: %d, TxBufCnt: %d\n",
 175                 macp->TxBufHead, macp->TxBufTail, macp->TxBufCnt);
 176         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 177         return 0xffff;
 178         }
 179
 180     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 181     return 0;
 182 }
 183
 184 zbuf_t *zfLnxGetUsbRxBuffer(zdev_t *dev)
 185 {
 186     struct usbdrv_private *macp = dev->ml_priv;
 187     /*u16_t idx;*/
 188     zbuf_t *buf;
 189     unsigned long irqFlag;
 190
 191     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 192
 193     /*idx = ((macp->RxBufHead+1) & (ZM_MAX_RX_URB_NUM - 1));*/
 194
 195     /*if (idx != macp->RxBufTail)*/
 196     if (macp->RxBufCnt != 0) {
 197         buf = macp->UsbRxBufQ[macp->RxBufHead];
 198         macp->RxBufHead = ((macp->RxBufHead+1) & (ZM_MAX_RX_URB_NUM - 1));
 199         macp->RxBufCnt--;
 200     } else {
 201         printk("RxBufQ inconsistent: RxBufHead: %d, RxBufTail: %d\n",
 202                 macp->RxBufHead, macp->RxBufTail);
 203         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 204         return NULL;
 205         }
 206
 207     spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 208     return buf;
 209 }
 210
 211 u32_t zfLnxPutUsbRxBuffer(zdev_t *dev, zbuf_t *buf)
 212 {
 213     struct usbdrv_private *macp = dev->ml_priv;
 214     u16_t idx;
 215     unsigned long irqFlag;
 216
 217     spin_lock_irqsave(&macp->cs_lock, irqFlag);
 218
 219     idx = ((macp->RxBufTail+1) & (ZM_MAX_RX_URB_NUM - 1));
 220
 221     /*if (idx != macp->RxBufHead)*/
 222     if (macp->RxBufCnt != ZM_MAX_RX_URB_NUM) {
 223         macp->UsbRxBufQ[macp->RxBufTail] = buf;
 224         macp->RxBufTail = idx;
 225         macp->RxBufCnt++;
 226     } else {
 227         printk("RxBufQ inconsistent: RxBufHead: %d, RxBufTail: %d\n",
 228                 macp->RxBufHead, macp->RxBufTail);
 229         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 230         return 0xffff;
 231         }
 232
 233         spin_unlock_irqrestore(&macp->cs_lock, irqFlag);
 234         return 0;
 235 }
 236
 237 void zfLnxUsbDataOut_callback(urb_t *urb)
 238 {
 239     zdev_t *dev = urb->context;
 240     /*UsbTxQ_t *TxData;*/
 241
 242     /* Give the urb back */
 243     zfLnxPutTxUrb(dev);
 244
 245     /* Check whether there is any pending buffer needed */
 246     /* to be sent */
 247     if (zfLnxCheckTxBufferCnt(dev) != 0) {
 248         /*TxData = zfwGetUsbTxBuffer(dev);
 249         //if (TxData == NULL)
 250         //{
 251         //    printk("Get a NULL buffer from zfwGetUsbTxBuffer\n");
 252         //    return;
 253         //}
 254         //else
 255         //{
 256                 zfLnxUsbSubmitTxData(dev);
 257         //}*/
 258     }
 259 }
 260
 261 void zfLnxUsbDataIn_callback(urb_t *urb)
 262 {
 263     zdev_t *dev = urb->context;
 264     struct usbdrv_private *macp = dev->ml_priv;
 265     zbuf_t *buf;
 266     zbuf_t *new_buf;
 267     int status;
 268
 269 #if ZM_USB_STREAM_MODE == 1
 270     static int remain_len, check_pad, check_len;
 271     int index = 0;
 272     int chk_idx;
 273     u16_t pkt_len;
 274     u16_t pkt_tag;
 275     u16_t ii;
 276     zbuf_t *rxBufPool[8];
 277     u16_t rxBufPoolIndex = 0;
 278 #endif
 279
 280     /* Check status for URB */
 281     if (urb->status != 0) {
 282         printk("zfLnxUsbDataIn_callback() : status=0x%x\n", urb->status);
 283         if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET)
 284                 && (urb->status != -ESHUTDOWN)) {
 285                 if (urb->status == -EPIPE) {
 286                         /*printk(KERN_ERR "nonzero read bulk status received: -EPIPE");*/
 287                         status = -1;
 288                 }
 289
 290                 if (urb->status == -EPROTO) {
 291                         /*printk(KERN_ERR "nonzero read bulk status received: -EPROTO");*/
 292                         status = -1;
 293                 }
 294         }
 295
 296         /*printk(KERN_ERR "urb->status: 0x%08x\n", urb->status);*/
 297
 298         /* Dequeue skb buffer */
 299         buf = zfLnxGetUsbRxBuffer(dev);
 300         dev_kfree_skb_any(buf);
 301         return;
 302         }
 303
 304     if (urb->actual_length == 0) {
 305         printk(KERN_ERR "Get an URB whose length is zero");
 306         status = -1;
 307     }
 308
 309     /* Dequeue skb buffer */
 310     buf = zfLnxGetUsbRxBuffer(dev);
 311
 312     /*zfwBufSetSize(dev, buf, urb->actual_length);*/
 313 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 314     buf->tail = 0;
 315     buf->len = 0;
 316 #else
 317     buf->tail = buf->data;
 318     buf->len = 0;
 319 #endif
 320
 321     BUG_ON((buf->tail + urb->actual_length) > buf->end);
 322
 323     skb_put(buf, urb->actual_length);
 324
 325 #if ZM_USB_STREAM_MODE == 1
 326     if (remain_len != 0) {
 327         zbuf_t *remain_buf = macp->reamin_buf;
 328
 329         index = remain_len;
 330         remain_len -= check_pad;
 331
 332         /*  Copy data */
 333         memcpy(&(remain_buf->data[check_len]), buf->data, remain_len);
 334         check_len += remain_len;
 335         remain_len = 0;
 336
 337         rxBufPool[rxBufPoolIndex++] = remain_buf;
 338     }
 339
 340     while (index < urb->actual_length) {
 341         pkt_len = buf->data[index] + (buf->data[index+1] << 8);
 342         pkt_tag = buf->data[index+2] + (buf->data[index+3] << 8);
 343
 344         if (pkt_tag == 0x4e00) {
 345                 int pad_len;
 346
 347                 /*printk("Get a packet, index: %d, pkt_len: 0x%04x\n", index, pkt_len);*/
 348
 349                 pad_len = 4 - (pkt_len & 0x3);
 350
 351                 if (pad_len == 4)
 352                 pad_len = 0;
 353
 354                 chk_idx = index;
 355                 index = index + 4 + pkt_len + pad_len;
 356
 357                 if (index > ZM_MAX_RX_BUFFER_SIZE) {
 358                         remain_len = index - ZM_MAX_RX_BUFFER_SIZE; /* - pad_len;*/
 359                         check_len = ZM_MAX_RX_BUFFER_SIZE - chk_idx - 4;
 360                         check_pad = pad_len;
 361
 362                         /* Allocate a skb buffer */
 363                         /*new_buf = zfwBufAllocate(dev, ZM_MAX_RX_BUFFER_SIZE);*/
 364                         new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 365
 366                         /* Set skb buffer length */
 367                         #ifdef NET_SKBUFF_DATA_USES_OFFSET
 368                         new_buf->tail = 0;
 369                         new_buf->len = 0;
 370                         #else
 371                         new_buf->tail = new_buf->data;
 372                         new_buf->len = 0;
 373                         #endif
 374
 375                         skb_put(new_buf, pkt_len);
 376
 377                         /* Copy the buffer */
 378                         memcpy(new_buf->data, &(buf->data[chk_idx+4]), check_len);
 379
 380                         /* Record the buffer pointer */
 381                         macp->reamin_buf = new_buf;
 382                 } else  {
 383                         #ifdef ZM_DONT_COPY_RX_BUFFER
 384                         if (rxBufPoolIndex == 0) {
 385                                 new_buf = skb_clone(buf, GFP_ATOMIC);
 386
 387                                 new_buf->data = &(buf->data[chk_idx+4]);
 388                                 new_buf->len = pkt_len;
 389                         } else  {
 390                                 #endif
 391                                 /* Allocate a skb buffer */
 392                                 new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 393
 394                                 /* Set skb buffer length */
 395                                 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 396                                 new_buf->tail = 0;
 397                                 new_buf->len = 0;
 398                                 #else
 399                                 new_buf->tail = new_buf->data;
 400                                 new_buf->len = 0;
 401                                 #endif
 402
 403                                 skb_put(new_buf, pkt_len);
 404
 405                                 /* Copy the buffer */
 406                                 memcpy(new_buf->data, &(buf->data[chk_idx+4]), pkt_len);
 407
 408                                 #ifdef ZM_DONT_COPY_RX_BUFFER
 409                                 }
 410                         #endif
 411                         rxBufPool[rxBufPoolIndex++] = new_buf;
 412                         }
 413                 } else {
 414                         printk(KERN_ERR "Can't find tag, pkt_len: 0x%04x, tag: 0x%04x\n", pkt_len, pkt_tag);
 415
 416                         /* Free buffer */
 417                         dev_kfree_skb_any(buf);
 418
 419                         /* Allocate a skb buffer */
 420                         new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 421
 422                         /* Enqueue skb buffer */
 423                         zfLnxPutUsbRxBuffer(dev, new_buf);
 424
 425                         /* Submit a Rx urb */
 426                         zfLnxUsbIn(dev, urb, new_buf);
 427
 428                         return;
 429                         }
 430                 }
 431
 432     /* Free buffer */
 433     dev_kfree_skb_any(buf);
 434 #endif
 435
 436     /* Allocate a skb buffer */
 437     new_buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 438
 439     /* Enqueue skb buffer */
 440     zfLnxPutUsbRxBuffer(dev, new_buf);
 441
 442     /* Submit a Rx urb */
 443     zfLnxUsbIn(dev, urb, new_buf);
 444
 445 #if ZM_USB_STREAM_MODE == 1
 446     for (ii = 0; ii < rxBufPoolIndex; ii++) {
 447         macp->usbCbFunctions.zfcbUsbRecv(dev, rxBufPool[ii]);
 448     }
 449 #else
 450     /* pass data to upper layer */
 451     macp->usbCbFunctions.zfcbUsbRecv(dev, buf);
 452 #endif
 453 }
 454
 455 void zfLnxUsbRegOut_callback(urb_t *urb)
 456 {
 457     /*dev_t* dev = urb->context;*/
 458
 459         /*printk(KERN_ERR "zfwUsbRegOut_callback\n");*/
 460 }
 461
 462 void zfLnxUsbRegIn_callback(urb_t *urb)
 463 {
 464     zdev_t *dev = urb->context;
 465     u32_t rsp[64/4];
 466     int status;
 467     struct usbdrv_private *macp = dev->ml_priv;
 468
 469     /* Check status for URB */
 470     if (urb->status != 0) {
 471         printk("zfLnxUsbRegIn_callback() : status=0x%x\n", urb->status);
 472         if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET) && (urb->status != -ESHUTDOWN)) {
 473                 if (urb->status == -EPIPE) {
 474                         /*printk(KERN_ERR "nonzero read bulk status received: -EPIPE");*/
 475                         status = -1;
 476                 }
 477
 478                 if (urb->status == -EPROTO) {
 479                         /*printk(KERN_ERR "nonzero read bulk status received: -EPROTO");*/
 480                         status = -1;
 481                 }
 482         }
 483
 484         /*printk(KERN_ERR "urb->status: 0x%08x\n", urb->status);*/
 485         return;
 486         }
 487
 488     if (urb->actual_length == 0) {
 489         printk(KERN_ERR "Get an URB whose length is zero");
 490         status = -1;
 491     }
 492
 493     /* Copy data into respone buffer */
 494     memcpy(rsp, macp->regUsbReadBuf, urb->actual_length);
 495
 496     /* Notify to upper layer */
 497     /*zfIdlChkRsp(dev, rsp, (u16_t)urb->actual_length);*/
 498     /*zfiUsbRegIn(dev, rsp, (u16_t)urb->actual_length);*/
 499     macp->usbCbFunctions.zfcbUsbRegIn(dev, rsp, (u16_t)urb->actual_length);
 500
 501     /* Issue another USB IN URB */
 502     zfLnxSubmitRegInUrb(dev);
 503 }
 504
 505 u32_t zfLnxSubmitRegInUrb(zdev_t *dev)
 506 {
 507     u32_t ret;
 508     struct usbdrv_private *macp = dev->ml_priv;
 509
 510     /* Submit a rx urb
 511     //ret = zfLnxUsbSubmitBulkUrb(macp->RegInUrb, macp->udev,
 512     //        USB_REG_IN_PIPE, USB_DIR_IN, macp->regUsbReadBuf,
 513     //        ZM_USB_REG_MAX_BUF_SIZE, zfLnxUsbRegIn_callback, dev);
 514     //CWYang(-)
 515     //if (ret != 0)
 516     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);*/
 517
 518     ret = zfLnxUsbSubmitIntUrb(macp->RegInUrb, macp->udev,
 519         USB_REG_IN_PIPE, USB_DIR_IN, macp->regUsbReadBuf,
 520         ZM_USB_REG_MAX_BUF_SIZE, zfLnxUsbRegIn_callback, dev, 1);
 521
 522     return ret;
 523 }
 524
 525 u32_t zfLnxUsbSubmitTxData(zdev_t *dev)
 526 {
 527     u32_t i;
 528     u32_t ret;
 529     u16_t freeTxUrb;
 530     u8_t *puTxBuf = NULL;
 531     UsbTxQ_t *TxData;
 532     int len = 0;
 533     struct usbdrv_private *macp = dev->ml_priv;
 534 #if ZM_USB_TX_STREAM_MODE == 1
 535     u8_t               ii;
 536     u16_t              offset = 0;
 537     u16_t              usbTxAggCnt;
 538     u16_t              *pUsbTxHdr;
 539     UsbTxQ_t           *TxQPool[ZM_MAX_TX_AGGREGATE_NUM];
 540 #endif
 541
 542     /* First check whether there is a free URB */
 543     freeTxUrb = zfLnxGetFreeTxUrb(dev);
 544
 545     /* If there is no any free Tx Urb */
 546     if (freeTxUrb == 0xffff) {
 547         /*printk(KERN_ERR "Can't get free Tx Urb\n");
 548         //printk("CWY - Can't get free Tx Urb\n");*/
 549         return 0xffff;
 550     }
 551
 552 #if ZM_USB_TX_STREAM_MODE == 1
 553     usbTxAggCnt = zfLnxCheckTxBufferCnt(dev);
 554
 555     if (usbTxAggCnt >= ZM_MAX_TX_AGGREGATE_NUM) {
 556         usbTxAggCnt = ZM_MAX_TX_AGGREGATE_NUM;
 557     } else {
 558         usbTxAggCnt = 1;
 559     }
 560
 561     /*printk("usbTxAggCnt: %d\n", usbTxAggCnt);*/
 562 #endif
 563
 564 #if ZM_USB_TX_STREAM_MODE == 1
 565     for (ii = 0; ii < usbTxAggCnt; ii++) {
 566 #endif
 567     /* Dequeue the packet from UsbTxBufQ */
 568     TxData = zfLnxGetUsbTxBuffer(dev);
 569     if (TxData == NULL) {
 570         /* Give the urb back */
 571         zfLnxPutTxUrb(dev);
 572         return 0xffff;
 573     }
 574
 575     /* Point to the freeTxUrb buffer */
 576     puTxBuf = macp->txUsbBuf[freeTxUrb];
 577
 578 #if ZM_USB_TX_STREAM_MODE == 1
 579     puTxBuf += offset;
 580     pUsbTxHdr = (u16_t *)puTxBuf;
 581
 582     /* Add the packet length and tag information */
 583     *pUsbTxHdr++ = TxData->hdrlen + TxData->snapLen +
 584         (TxData->buf->len - TxData->offset) +  TxData->tailLen;
 585
 586     *pUsbTxHdr++ = 0x697e;
 587
 588     puTxBuf += 4;
 589 #endif /* #ifdef ZM_USB_TX_STREAM_MODE*/
 590
 591     /* Copy WLAN header and packet buffer into USB buffer */
 592     for (i = 0; i < TxData->hdrlen; i++) {
 593         *puTxBuf++ = TxData->hdr[i];
 594     }
 595
 596     /* Copy SNAP header */
 597     for (i = 0; i < TxData->snapLen; i++) {
 598         *puTxBuf++ = TxData->snap[i];
 599     }
 600
 601     /* Copy packet buffer */
 602     for (i = 0; i < TxData->buf->len - TxData->offset; i++) {
 603         /*puTxBuf++ = zmw_rx_buf_readb(dev, TxData->buf, i);*/
 604         *puTxBuf++ = *(u8_t *)((u8_t *)TxData->buf->data+i+TxData->offset);
 605     }
 606
 607     /* Copy tail */
 608     for (i = 0; i < TxData->tailLen; i++) {
 609         *puTxBuf++ = TxData->tail[i];
 610     }
 611
 612     len = TxData->hdrlen+TxData->snapLen+TxData->buf->len+TxData->tailLen-TxData->offset;
 613
 614
 615 #if ZM_USB_TX_STREAM_MODE == 1
 616     /* Add the Length and Tag*/
 617     len += 4;
 618
 619     /*printk("%d packet, length: %d\n", ii+1, len);*/
 620
 621     if (ii < (ZM_MAX_TX_AGGREGATE_NUM-1)) {
 622         /* Pad the buffer to firmware descriptor boundary */
 623         offset += (((len-1) / 4) + 1) * 4;
 624     }
 625
 626     if (ii == (ZM_MAX_TX_AGGREGATE_NUM-1)) {
 627         len += offset;
 628     }
 629
 630     TxQPool[ii] = TxData;
 631
 632     /*DbgPrint("%d packet, offset: %d\n", ii+1, pUsbTxTransfer->offset);*/
 633
 634     /* free packet */
 635     /*zfBufFree(dev, txData->buf);*/
 636     }
 637 #endif
 638     /*printk("CWY - call zfwUsbSubmitBulkUrb(), len = 0x%d\n", len);*/
 639     /* Submit a tx urb */
 640     ret = zfLnxUsbSubmitBulkUrb(macp->WlanTxDataUrb[freeTxUrb], macp->udev,
 641         USB_WLAN_TX_PIPE, USB_DIR_OUT, macp->txUsbBuf[freeTxUrb],
 642         len, zfLnxUsbDataOut_callback, dev);
 643     /*CWYang(-)
 644     //if (ret != 0)
 645     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);*/
 646
 647     /* free packet */
 648     /*dev_kfree_skb_any(TxData->buf);*/
 649 #if ZM_USB_TX_STREAM_MODE == 1
 650     for (ii = 0; ii < usbTxAggCnt; ii++)
 651         macp->usbCbFunctions.zfcbUsbOutComplete(dev, TxQPool[ii]->buf, 1, TxQPool[ii]->hdr);
 652 #else
 653     macp->usbCbFunctions.zfcbUsbOutComplete(dev, TxData->buf, 1, TxData->hdr);
 654 #endif
 655
 656     return ret;
 657 }
 658
 659
 660
 661 u32_t zfLnxUsbIn(zdev_t *dev, urb_t *urb, zbuf_t *buf)
 662 {
 663     u32_t ret;
 664     struct usbdrv_private *macp = dev->ml_priv;
 665
 666     /* Submit a rx urb */
 667     ret = zfLnxUsbSubmitBulkUrb(urb, macp->udev, USB_WLAN_RX_PIPE,
 668         USB_DIR_IN, buf->data, ZM_MAX_RX_BUFFER_SIZE,
 669         zfLnxUsbDataIn_callback, dev);
 670     /*CWYang(-)
 671     //if (ret != 0)
 672     //    printk("zfwUsbSubmitBulkUrb fail, status: 0x%08x\n", (int)ret);*/
 673
 674     return ret;
 675 }
 676
 677 u32_t zfLnxUsbWriteReg(zdev_t *dev, u32_t *cmd, u16_t cmdLen)
 678 {
 679     struct usbdrv_private *macp = dev->ml_priv;
 680     u32_t ret;
 681
 682 #ifdef ZM_CONFIG_BIG_ENDIAN
 683     int ii = 0;
 684
 685     for (ii = 0; ii < (cmdLen>>2); ii++)
 686         cmd[ii] = cpu_to_le32(cmd[ii]);
 687 #endif
 688
 689     memcpy(macp->regUsbWriteBuf, cmd, cmdLen);
 690
 691     /* Issue an USB Out transfer */
 692     /* Submit a tx urb */
 693     ret = zfLnxUsbSubmitIntUrb(macp->RegOutUrb, macp->udev,
 694         USB_REG_OUT_PIPE, USB_DIR_OUT, macp->regUsbWriteBuf,
 695         cmdLen, zfLnxUsbRegOut_callback, dev, 1);
 696
 697     return ret;
 698 }
 699
 700
 701 u32_t zfLnxUsbOut(zdev_t *dev, u8_t *hdr, u16_t hdrlen, u8_t *snap, u16_t snapLen,
 702         u8_t *tail, u16_t tailLen, zbuf_t *buf, u16_t offset)
 703 {
 704     u32_t ret;
 705     struct usbdrv_private *macp = dev->ml_priv;
 706
 707     /* Check length of tail buffer */
 708     /*zm_assert((tailLen <= 16));*/
 709
 710     /* Enqueue the packet into UsbTxBufQ */
 711     if (zfLnxPutUsbTxBuffer(dev, hdr, hdrlen, snap, snapLen, tail, tailLen, buf, offset) == 0xffff) {
 712         /* free packet */
 713         /*printk("CWY - zfwPutUsbTxBuffer Error, free packet\n");
 714         //dev_kfree_skb_any(buf);*/
 715         macp->usbCbFunctions.zfcbUsbOutComplete(dev, buf, 0, hdr);
 716         return 0xffff;
 717         }
 718
 719     /*return 0;
 720     //printk("CWY - call zfwUsbSubmitTxData()\n");*/
 721     ret = zfLnxUsbSubmitTxData(dev);
 722     return ret;
 723 }
 724
 725 void zfLnxInitUsbTxQ(zdev_t *dev)
 726 {
 727     struct usbdrv_private *macp = dev->ml_priv;
 728
 729     printk(KERN_ERR "zfwInitUsbTxQ\n");
 730
 731     /* Zero memory for UsbTxBufQ */
 732     memset(macp->UsbTxBufQ, 0, sizeof(UsbTxQ_t) * ZM_MAX_TX_URB_NUM);
 733
 734     macp->TxBufHead = 0;
 735     macp->TxBufTail = 0;
 736     macp->TxUrbHead = 0;
 737     macp->TxUrbTail = 0;
 738     macp->TxUrbCnt = ZM_MAX_TX_URB_NUM;
 739 }
 740
 741 void zfLnxInitUsbRxQ(zdev_t *dev)
 742 {
 743     u16_t i;
 744     zbuf_t *buf;
 745     struct usbdrv_private *macp = dev->ml_priv;
 746
 747     /* Zero memory for UsbRxBufQ */
 748     memset(macp->UsbRxBufQ, 0, sizeof(zbuf_t *) * ZM_MAX_RX_URB_NUM);
 749
 750     macp->RxBufHead = 0;
 751
 752     for (i = 0; i < ZM_MAX_RX_URB_NUM; i++) {
 753         /*buf = zfwBufAllocate(dev, ZM_MAX_RX_BUFFER_SIZE);*/
 754         buf = dev_alloc_skb(ZM_MAX_RX_BUFFER_SIZE);
 755         macp->UsbRxBufQ[i] = buf;
 756         }
 757
 758     /*macp->RxBufTail = ZM_MAX_RX_URB_NUM - 1;*/
 759     macp->RxBufTail = 0;
 760
 761     /* Submit all Rx urbs */
 762     for (i = 0; i < ZM_MAX_RX_URB_NUM; i++) {
 763         zfLnxPutUsbRxBuffer(dev, macp->UsbRxBufQ[i]);
 764         zfLnxUsbIn(dev, macp->WlanRxDataUrb[i], macp->UsbRxBufQ[i]);
 765         }
 766 }
 767
 768
 769
 770 u32_t zfLnxUsbSubmitBulkUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
 771         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context)
 772 {
 773     u32_t ret;
 774
 775     if (direction == USB_DIR_OUT) {
 776         usb_fill_bulk_urb(urb, usb, usb_sndbulkpipe(usb, epnum),
 777                 transfer_buffer, buffer_length, complete, context);
 778
 779         urb->transfer_flags |= URB_ZERO_PACKET;
 780     } else {
 781         usb_fill_bulk_urb(urb, usb, usb_rcvbulkpipe(usb, epnum),
 782                 transfer_buffer, buffer_length, complete, context);
 783     }
 784
 785     if (epnum == 4) {
 786         if (urb->hcpriv) {
 787                 /*printk("CWY - urb->hcpriv set by unknown reason, reset it\n");
 788                 //urb->hcpriv = 0;*/
 789                 }
 790         }
 791
 792     ret = usb_submit_urb(urb, GFP_ATOMIC);
 793     if ((epnum == 4) & (ret != 0)) {
 794         /*printk("CWY - ret = %x\n", ret);*/
 795     }
 796     return ret;
 797 }
 798
 799 u32_t zfLnxUsbSubmitIntUrb(urb_t *urb, struct usb_device *usb, u16_t epnum, u16_t direction,
 800         void *transfer_buffer, int buffer_length, usb_complete_t complete, void *context,
 801         u32_t interval)
 802 {
 803     u32_t ret;
 804
 805     if (direction == USB_DIR_OUT) {
 806         usb_fill_int_urb(urb, usb, usb_sndbulkpipe(usb, epnum),
 807                 transfer_buffer, buffer_length, complete, context, interval);
 808     } else {
 809         usb_fill_int_urb(urb, usb, usb_rcvbulkpipe(usb, epnum),
 810         transfer_buffer, buffer_length, complete, context, interval);
 811     }
 812
 813     ret = usb_submit_urb(urb, GFP_ATOMIC);
 814
 815     return ret;
 816 }
 817
 818 #ifdef ZM_ENABLE_CENC
 819 int zfLnxCencSendMsg(struct sock *netlink_sk, u_int8_t *msg, int len)
 820 {
 821 #define COMMTYPE_GROUP   8
 822 #define WAI_K_MSG        0x11
 823
 824         int ret = -1;
 825         int size;
 826         unsigned char *old_tail;
 827         struct sk_buff *skb;
 828         struct nlmsghdr *nlh;
 829         char *pos = NULL;
 830
 831         size = NLMSG_SPACE(len);
 832         skb = alloc_skb(size, GFP_ATOMIC);
 833
 834         if (skb == NULL) {
 835                 printk("dev_alloc_skb failure \n");
 836                 goto out;
 837         }
 838         old_tail = skb->tail;
 839
 840         /* */
 841         nlh = NLMSG_PUT(skb, 0, 0, WAI_K_MSG, size-sizeof(*nlh));
 842         pos = NLMSG_DATA(nlh);
 843
 844         /* */
 845         memcpy(pos, msg,  len);
 846         /* */
 847         nlh->nlmsg_len = skb->tail - old_tail;
 848         NETLINK_CB(skb).dst_group = COMMTYPE_GROUP;
 849         netlink_broadcast(netlink_sk, skb, 0, COMMTYPE_GROUP, GFP_ATOMIC);
 850         ret = 0;
 851 out:
 852         return ret;
 853 nlmsg_failure: /* */
 854         kfree_skb(skb);
 855         goto out;
 856
 857 #undef COMMTYPE_GROUP
 858 #undef WAI_K_MSG
 859 }
 860 #endif /*ZM_ENABLE_CENC*/
 861
 862 /* Simply return 0xffff if VAP function is not supported */
 863 u16_t zfLnxGetVapId(zdev_t *dev)
 864 {
 865     u16_t i;
 866
 867     for (i = 0; i < ZM_VAP_PORT_NUMBER; i++) {
 868         if (vap[i].dev == dev) {
 869                 return i;
 870                 }
 871         }
 872         return 0xffff;
 873 }
 874
 875 u32_t zfwReadReg(zdev_t *dev, u32_t offset)
 876 {
 877     return 0;
 878 }
 879
 880 #ifndef INIT_WORK
 881 #define work_struct tq_struct
 882
 883 #define schedule_work(a)  schedule_task(a)
 884
 885 #define flush_scheduled_work  flush_scheduled_tasks
 886 #define INIT_WORK(_wq, _routine, _data)  INIT_TQUEUE(_wq, _routine, _data)
 887 #define PREPARE_WORK(_wq, _routine, _data)  PREPARE_TQUEUE(_wq, _routine, _data)
 888 #endif
 889
 890 #define KEVENT_WATCHDOG        0x00000001
 891
 892 u32_t smp_kevent_Lock = 0;
 893
 894 void kevent(struct work_struct *work)
 895 {
 896     struct usbdrv_private *macp =
 897         container_of(work, struct usbdrv_private, kevent);
 898         zdev_t *dev = macp->device;
 899
 900     if (test_and_set_bit(0, (void *)&smp_kevent_Lock)) {
 901         /*schedule_work(&macp->kevent);*/
 902         return;
 903     }
 904
 905     down(&macp->ioctl_sem);
 906
 907     if (test_and_clear_bit(KEVENT_WATCHDOG, &macp->kevent_flags)) {
 908     extern u16_t zfHpStartRecv(zdev_t *dev);
 909         /*zfiHwWatchDogReinit(dev);*/
 910         printk(("\n ************ Hw watchDog occur!! ************** \n"));
 911         zfiWlanSuspend(dev);
 912         zfiWlanResume(dev , 0);
 913         zfHpStartRecv(dev);
 914     }
 915
 916     clear_bit(0, (void *)&smp_kevent_Lock);
 917     up(&macp->ioctl_sem);
 918 }
 919
 920 /************************************************************************/
 921 /*                                                                      */
 922 /*    FUNCTION DESCRIPTION                 zfLnxCreateThread            */
 923 /*      Create a Thread                                                 */
 924 /*                                                                      */
 925 /*    INPUTS                                                            */
 926 /*      dev : device pointer                                            */
 927 /*                                                                      */
 928 /*    OUTPUTS                                                           */
 929 /*      always 0                                                        */
 930 /*                                                                      */
 931 /*    AUTHOR                                                            */
 932 /*      Yuan-Gu Wei         Atheros Communications, INC.    2007.3      */
 933 /*                                                                      */
 934 /************************************************************************/
 935 u8_t zfLnxCreateThread(zdev_t *dev)
 936 {
 937     struct usbdrv_private *macp = dev->ml_priv;
 938
 939     /* Create Mutex and keventd */
 940     INIT_WORK(&macp->kevent, kevent);
 941     init_MUTEX(&macp->ioctl_sem);
 942
 943     return 0;
 944 }
 945
 946 /************************************************************************/
 947 /*                                                                      */
 948 /*    FUNCTION DESCRIPTION                 zfLnxSignalThread            */
 949 /*      Signal Thread with Flag                                         */
 950 /*                                                                      */
 951 /*    INPUTS                                                            */
 952 /*      dev : device pointer                                            */
 953 /*      flag : signal thread flag                                       */
 954 /*                                                                      */
 955 /*    OUTPUTS                                                           */
 956 /*      none                                                            */
 957 /*                                                                      */
 958 /*    AUTHOR                                                            */
 959 /*      Yuan-Gu Wei         Atheros Communications, INC.    2007.3      */
 960 /*                                                                      */
 961 /************************************************************************/
 962 void zfLnxSignalThread(zdev_t *dev, int flag)
 963 {
 964     struct usbdrv_private *macp = dev->ml_priv;
 965
 966     if (macp == NULL) {
 967         printk("macp is NULL\n");
 968         return;
 969     }
 970
 971     if (0 && macp->kevent_ready != 1) {
 972         printk("Kevent not ready\n");
 973         return;
 974     }
 975
 976     set_bit(flag, &macp->kevent_flags);
 977
 978     if (!schedule_work(&macp->kevent)) {
 979         /*Fails is Normal
 980         //printk(KERN_ERR "schedule_task failed, flag = %x\n", flag);*/
 981         }
 982 }
 983
 984 /* Notify wrapper todo redownload firmware and reinit procedure when */
 985 /* hardware watchdog occur : zfiHwWatchDogReinit() */
 986 void zfLnxWatchDogNotify(zdev_t *dev)
 987 {
 988     zfLnxSignalThread(dev, KEVENT_WATCHDOG);
 989 }
 990
 991 /* Query Durantion of Active Scan */
 992 void zfwGetActiveScanDur(zdev_t *dev, u8_t *Dur)
 993 {
 994     *Dur = 30; /* default 30 ms*/
 995 }
 996
 997 void zfwGetShowZeroLengthSSID(zdev_t *dev, u8_t *Dur)
 998 {
 999     *Dur = 0;
1000 }