kernel/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  ******************************************************************************/
  19 #define _USB_OPS_LINUX_C_
  20
  21 #include <drv_types.h>
  22 #include <recv_osdep.h>
  23 #include <rtw_sreset.h>
  24
  25 static void interrupt_handler_8188eu(struct adapter *adapt, u16 pkt_len, u8 *pbuf)
  26 {
  27         struct hal_data_8188e   *haldata = GET_HAL_DATA(adapt);
  28
  29         if (pkt_len != INTERRUPT_MSG_FORMAT_LEN) {
  30                 DBG_88E("%s Invalid interrupt content length (%d)!\n", __func__, pkt_len);
  31                 return;
  32         }
  33
  34         /*  HISR */
  35         memcpy(&(haldata->IntArray[0]), &(pbuf[USB_INTR_CONTENT_HISR_OFFSET]), 4);
  36         memcpy(&(haldata->IntArray[1]), &(pbuf[USB_INTR_CONTENT_HISRE_OFFSET]), 4);
  37
  38         /*  C2H Event */
  39         if (pbuf[0] != 0)
  40                 memcpy(&(haldata->C2hArray[0]), &(pbuf[USB_INTR_CONTENT_C2H_OFFSET]), 16);
  41 }
  42
  43 static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
  44 {
  45         u8      *pbuf;
  46         u8      shift_sz = 0;
  47         u16     pkt_cnt;
  48         u32     pkt_offset, skb_len, alloc_sz;
  49         s32     transfer_len;
  50         struct recv_stat        *prxstat;
  51         struct phy_stat *pphy_status = NULL;
  52         struct sk_buff *pkt_copy = NULL;
  53         struct recv_frame       *precvframe = NULL;
  54         struct rx_pkt_attrib    *pattrib = NULL;
  55         struct hal_data_8188e   *haldata = GET_HAL_DATA(adapt);
  56         struct recv_priv        *precvpriv = &adapt->recvpriv;
  57         struct __queue *pfree_recv_queue = &precvpriv->free_recv_queue;
  58
  59         transfer_len = (s32)pskb->len;
  60         pbuf = pskb->data;
  61
  62         prxstat = (struct recv_stat *)pbuf;
  63         pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff;
  64
  65         do {
  66                 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
  67                          ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
  68                           prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
  69
  70                 prxstat = (struct recv_stat *)pbuf;
  71
  72                 precvframe = rtw_alloc_recvframe(pfree_recv_queue);
  73                 if (precvframe == NULL) {
  74                         RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: precvframe==NULL\n"));
  75                         DBG_88E("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __func__, __LINE__);
  76                         goto _exit_recvbuf2recvframe;
  77                 }
  78
  79                 INIT_LIST_HEAD(&precvframe->list);
  80                 precvframe->len = 0;
  81
  82                 update_recvframe_attrib_88e(precvframe, prxstat);
  83
  84                 pattrib = &precvframe->attrib;
  85
  86                 if ((pattrib->crc_err) || (pattrib->icv_err)) {
  87                         DBG_88E("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __func__, pattrib->crc_err, pattrib->icv_err);
  88
  89                         rtw_free_recvframe(precvframe, pfree_recv_queue);
  90                         goto _exit_recvbuf2recvframe;
  91                 }
  92
  93                 if ((pattrib->physt) && (pattrib->pkt_rpt_type == NORMAL_RX))
  94                         pphy_status = (struct phy_stat *)(pbuf + RXDESC_OFFSET);
  95
  96                 pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
  97
  98                 if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
  99                         RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recvbuf2recvframe: pkt_len<=0\n"));
 100                         DBG_88E("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfoer_len\n", __func__, __LINE__);
 101                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 102                         goto _exit_recvbuf2recvframe;
 103                 }
 104
 105                 /*      Modified by Albert 20101213 */
 106                 /*      For 8 bytes IP header alignment. */
 107                 if (pattrib->qos)       /*      Qos data, wireless lan header length is 26 */
 108                         shift_sz = 6;
 109                 else
 110                         shift_sz = 0;
 111
 112                 skb_len = pattrib->pkt_len;
 113
 114                 /*  for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
 115                 /*  modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
 116                 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
 117                         if (skb_len <= 1650)
 118                                 alloc_sz = 1664;
 119                         else
 120                                 alloc_sz = skb_len + 14;
 121                 } else {
 122                         alloc_sz = skb_len;
 123                         /*      6 is for IP header 8 bytes alignment in QoS packet case. */
 124                         /*      8 is for skb->data 4 bytes alignment. */
 125                         alloc_sz += 14;
 126                 }
 127
 128                 pkt_copy = netdev_alloc_skb(adapt->pnetdev, alloc_sz);
 129                 if (pkt_copy) {
 130                         pkt_copy->dev = adapt->pnetdev;
 131                         precvframe->pkt = pkt_copy;
 132                         precvframe->rx_head = pkt_copy->data;
 133                         precvframe->rx_end = pkt_copy->data + alloc_sz;
 134                         skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
 135                         skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
 136                         memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
 137                         precvframe->rx_tail = pkt_copy->data;
 138                         precvframe->rx_data = pkt_copy->data;
 139                 } else {
 140                         if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
 141                                 DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n");
 142                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
 143                                 goto _exit_recvbuf2recvframe;
 144                         }
 145                         precvframe->pkt = skb_clone(pskb, GFP_ATOMIC);
 146                         if (precvframe->pkt) {
 147                                 precvframe->rx_tail = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE;
 148                                 precvframe->rx_head = precvframe->rx_tail;
 149                                 precvframe->rx_data = precvframe->rx_tail;
 150                                 precvframe->rx_end =  pbuf + pattrib->drvinfo_sz + RXDESC_SIZE + alloc_sz;
 151                         } else {
 152                                 DBG_88E("recvbuf2recvframe: skb_clone fail\n");
 153                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
 154                                 goto _exit_recvbuf2recvframe;
 155                         }
 156                 }
 157
 158                 recvframe_put(precvframe, skb_len);
 159
 160                 switch (haldata->UsbRxAggMode) {
 161                 case USB_RX_AGG_DMA:
 162                 case USB_RX_AGG_MIX:
 163                         pkt_offset = (u16)round_up(pkt_offset, 128);
 164                         break;
 165                 case USB_RX_AGG_USB:
 166                         pkt_offset = (u16)round_up(pkt_offset, 4);
 167                         break;
 168                 case USB_RX_AGG_DISABLE:
 169                 default:
 170                         break;
 171                 }
 172                 if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
 173                         if (pattrib->physt)
 174                                 update_recvframe_phyinfo_88e(precvframe, (struct phy_stat *)pphy_status);
 175                         if (rtw_recv_entry(precvframe) != _SUCCESS) {
 176                                 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
 177                                         ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
 178                         }
 179                 } else {
 180                         /* enqueue recvframe to txrtp queue */
 181                         if (pattrib->pkt_rpt_type == TX_REPORT1) {
 182                                 /* CCX-TXRPT ack for xmit mgmt frames. */
 183                                 handle_txrpt_ccx_88e(adapt, precvframe->rx_data);
 184                         } else if (pattrib->pkt_rpt_type == TX_REPORT2) {
 185                                 ODM_RA_TxRPT2Handle_8188E(
 186                                                         &haldata->odmpriv,
 187                                                         precvframe->rx_data,
 188                                                         pattrib->pkt_len,
 189                                                         pattrib->MacIDValidEntry[0],
 190                                                         pattrib->MacIDValidEntry[1]
 191                                                         );
 192                         } else if (pattrib->pkt_rpt_type == HIS_REPORT) {
 193                                 interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->rx_data);
 194                         }
 195                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 196                 }
 197                 pkt_cnt--;
 198                 transfer_len -= pkt_offset;
 199                 pbuf += pkt_offset;
 200                 precvframe = NULL;
 201                 pkt_copy = NULL;
 202
 203                 if (transfer_len > 0 && pkt_cnt == 0)
 204                         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
 205
 206         } while ((transfer_len > 0) && (pkt_cnt > 0));
 207
 208 _exit_recvbuf2recvframe:
 209
 210         return _SUCCESS;
 211 }
 212
 213 unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
 214 {
 215         unsigned int pipe = 0, ep_num = 0;
 216         struct usb_device *pusbd = pdvobj->pusbdev;
 217
 218         if (addr == RECV_BULK_IN_ADDR) {
 219                 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]);
 220         } else if (addr == RECV_INT_IN_ADDR) {
 221                 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]);
 222         } else if (addr < HW_QUEUE_ENTRY) {
 223                 ep_num = pdvobj->Queue2Pipe[addr];
 224                 pipe = usb_sndbulkpipe(pusbd, ep_num);
 225         }
 226
 227         return pipe;
 228 }
 229
 230 static int usbctrl_vendorreq(struct adapter *adapt, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
 231 {
 232         struct dvobj_priv  *dvobjpriv = adapter_to_dvobj(adapt);
 233         struct usb_device *udev = dvobjpriv->pusbdev;
 234         unsigned int pipe;
 235         int status = 0;
 236         u8 reqtype;
 237         u8 *pIo_buf;
 238         int vendorreq_times = 0;
 239
 240         if ((adapt->bSurpriseRemoved) || (adapt->pwrctrlpriv.pnp_bstop_trx)) {
 241                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usbctrl_vendorreq:(adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 242                 status = -EPERM;
 243                 goto exit;
 244         }
 245
 246         if (len > MAX_VENDOR_REQ_CMD_SIZE) {
 247                 DBG_88E("[%s] Buffer len error ,vendor request failed\n", __func__);
 248                 status = -EINVAL;
 249                 goto exit;
 250         }
 251
 252         _enter_critical_mutex(&dvobjpriv->usb_vendor_req_mutex, NULL);
 253
 254         /*  Acquire IO memory for vendorreq */
 255         pIo_buf = dvobjpriv->usb_vendor_req_buf;
 256
 257         if (pIo_buf == NULL) {
 258                 DBG_88E("[%s] pIo_buf == NULL\n", __func__);
 259                 status = -ENOMEM;
 260                 goto release_mutex;
 261         }
 262
 263         while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
 264                 memset(pIo_buf, 0, len);
 265
 266                 if (requesttype == 0x01) {
 267                         pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
 268                         reqtype =  REALTEK_USB_VENQT_READ;
 269                 } else {
 270                         pipe = usb_sndctrlpipe(udev, 0);/* write_out */
 271                         reqtype =  REALTEK_USB_VENQT_WRITE;
 272                         memcpy(pIo_buf, pdata, len);
 273                 }
 274
 275                 status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
 276
 277                 if (status == len) {   /*  Success this control transfer. */
 278                         if (requesttype == 0x01)
 279                                 memcpy(pdata, pIo_buf,  len);
 280                 } else { /*  error cases */
 281                         DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n",
 282                                 value, (requesttype == 0x01) ? "read" : "write",
 283                                 len, status, *(u32 *)pdata, vendorreq_times);
 284
 285                         if (status < 0) {
 286                                 if (status == (-ESHUTDOWN) || status == -ENODEV) {
 287                                         adapt->bSurpriseRemoved = true;
 288                                 } else {
 289                                         struct hal_data_8188e   *haldata = GET_HAL_DATA(adapt);
 290                                         haldata->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
 291                                 }
 292                         } else { /*  status != len && status >= 0 */
 293                                 if (status > 0) {
 294                                         if (requesttype == 0x01) {
 295                                                 /*  For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
 296                                                 memcpy(pdata, pIo_buf,  len);
 297                                         }
 298                                 }
 299                         }
 300
 301                 }
 302
 303                 /*  firmware download is checksumed, don't retry */
 304                 if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len)
 305                         break;
 306         }
 307 release_mutex:
 308         mutex_unlock(&dvobjpriv->usb_vendor_req_mutex);
 309 exit:
 310         return status;
 311 }
 312
 313 u8 usb_read8(struct adapter *adapter, u32 addr)
 314 {
 315         u8 request;
 316         u8 requesttype;
 317         u16 wvalue;
 318         u16 index;
 319         u16 len;
 320         u8 data = 0;
 321
 322
 323         request = 0x05;
 324         requesttype = 0x01;/* read_in */
 325         index = 0;/* n/a */
 326
 327         wvalue = (u16)(addr&0x0000ffff);
 328         len = 1;
 329
 330         usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
 331
 332
 333         return data;
 334
 335 }
 336
 337 u16 usb_read16(struct adapter *adapter, u32 addr)
 338 {
 339         u8 request;
 340         u8 requesttype;
 341         u16 wvalue;
 342         u16 index;
 343         u16 len;
 344         __le32 data;
 345
 346         request = 0x05;
 347         requesttype = 0x01;/* read_in */
 348         index = 0;/* n/a */
 349         wvalue = (u16)(addr&0x0000ffff);
 350         len = 2;
 351         usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
 352
 353         return (u16)(le32_to_cpu(data)&0xffff);
 354 }
 355
 356 u32 usb_read32(struct adapter *adapter, u32 addr)
 357 {
 358         u8 request;
 359         u8 requesttype;
 360         u16 wvalue;
 361         u16 index;
 362         u16 len;
 363         __le32 data;
 364
 365
 366         request = 0x05;
 367         requesttype = 0x01;/* read_in */
 368         index = 0;/* n/a */
 369
 370         wvalue = (u16)(addr&0x0000ffff);
 371         len = 4;
 372
 373         usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
 374
 375
 376         return le32_to_cpu(data);
 377 }
 378
 379 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 380 {
 381         struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
 382         struct adapter  *adapt = (struct adapter *)precvbuf->adapter;
 383         struct recv_priv *precvpriv = &adapt->recvpriv;
 384
 385         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete!!!\n"));
 386
 387         precvpriv->rx_pending_cnt--;
 388
 389         if (adapt->bSurpriseRemoved || adapt->bDriverStopped || adapt->bReadPortCancel) {
 390                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 391                          ("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
 392                          adapt->bDriverStopped, adapt->bSurpriseRemoved));
 393
 394                 precvbuf->reuse = true;
 395                 DBG_88E("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
 396                         __func__, adapt->bDriverStopped,
 397                         adapt->bSurpriseRemoved, adapt->bReadPortCancel);
 398                 return;
 399         }
 400
 401         if (purb->status == 0) { /* SUCCESS */
 402                 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)) {
 403                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 404                                  ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
 405                         precvbuf->reuse = true;
 406                         usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 407                         DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__);
 408                 } else {
 409                         skb_put(precvbuf->pskb, purb->actual_length);
 410                         skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb);
 411
 412                         if (skb_queue_len(&precvpriv->rx_skb_queue) <= 1)
 413                                 tasklet_schedule(&precvpriv->recv_tasklet);
 414
 415                         precvbuf->pskb = NULL;
 416                         precvbuf->reuse = false;
 417                         usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 418                 }
 419         } else {
 420                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
 421
 422                 DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
 423                 skb_put(precvbuf->pskb, purb->actual_length);
 424                 precvbuf->pskb = NULL;
 425
 426                 switch (purb->status) {
 427                 case -EINVAL:
 428                 case -EPIPE:
 429                 case -ENODEV:
 430                 case -ESHUTDOWN:
 431                         adapt->bSurpriseRemoved = true;
 432                 case -ENOENT:
 433                         adapt->bDriverStopped = true;
 434                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n"));
 435                         break;
 436                 case -EPROTO:
 437                 case -EOVERFLOW:
 438                         {
 439                                 struct hal_data_8188e   *haldata = GET_HAL_DATA(adapt);
 440                                 haldata->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
 441                         }
 442                         precvbuf->reuse = true;
 443                         usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 444                         break;
 445                 case -EINPROGRESS:
 446                         DBG_88E("ERROR: URB IS IN PROGRESS!\n");
 447                         break;
 448                 default:
 449                         break;
 450                 }
 451         }
 452 }
 453
 454 u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem)
 455 {
 456         struct urb *purb = NULL;
 457         struct recv_buf *precvbuf = (struct recv_buf *)rmem;
 458         struct dvobj_priv       *pdvobj = adapter_to_dvobj(adapter);
 459         struct recv_priv        *precvpriv = &adapter->recvpriv;
 460         struct usb_device       *pusbd = pdvobj->pusbdev;
 461         int err;
 462         unsigned int pipe;
 463         size_t tmpaddr = 0;
 464         size_t alignment = 0;
 465         u32 ret = _SUCCESS;
 466
 467
 468         if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
 469             adapter->pwrctrlpriv.pnp_bstop_trx) {
 470                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 471                          ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 472                 return _FAIL;
 473         }
 474
 475         if (!precvbuf) {
 476                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 477                          ("usb_read_port:precvbuf==NULL\n"));
 478                 return _FAIL;
 479         }
 480
 481         if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
 482                 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
 483                 if (NULL != precvbuf->pskb)
 484                         precvbuf->reuse = true;
 485         }
 486
 487         /* re-assign for linux based on skb */
 488         if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
 489                 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
 490                 if (precvbuf->pskb == NULL) {
 491                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
 492                         DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
 493                         return _FAIL;
 494                 }
 495
 496                 tmpaddr = (size_t)precvbuf->pskb->data;
 497                 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
 498                 skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
 499         } else { /* reuse skb */
 500                 precvbuf->reuse = false;
 501         }
 502
 503         precvpriv->rx_pending_cnt++;
 504
 505         purb = precvbuf->purb;
 506
 507         /* translate DMA FIFO addr to pipehandle */
 508         pipe = ffaddr2pipehdl(pdvobj, addr);
 509
 510         usb_fill_bulk_urb(purb, pusbd, pipe,
 511                           precvbuf->pskb->data,
 512                           MAX_RECVBUF_SZ,
 513                           usb_read_port_complete,
 514                           precvbuf);/* context is precvbuf */
 515
 516         err = usb_submit_urb(purb, GFP_ATOMIC);
 517         if ((err) && (err != (-EPERM))) {
 518                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 519                          ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
 520                          err, purb->status));
 521                 DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
 522                         err, purb->status);
 523                 ret = _FAIL;
 524         }
 525
 526         return ret;
 527 }
 528
 529 void usb_read_port_cancel(struct adapter *padapter)
 530 {
 531         int i;
 532         struct recv_buf *precvbuf;
 533
 534         precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
 535
 536         DBG_88E("%s\n", __func__);
 537
 538         padapter->bReadPortCancel = true;
 539
 540         for (i = 0; i < NR_RECVBUFF; i++) {
 541                 precvbuf->reuse = true;
 542                 if (precvbuf->purb)
 543                         usb_kill_urb(precvbuf->purb);
 544                 precvbuf++;
 545         }
 546 }
 547
 548 int usb_write8(struct adapter *adapter, u32 addr, u8 val)
 549 {
 550         u8 request;
 551         u8 requesttype;
 552         u16 wvalue;
 553         u16 index;
 554         u16 len;
 555         u8 data;
 556
 557         request = 0x05;
 558         requesttype = 0x00;/* write_out */
 559         index = 0;/* n/a */
 560         wvalue = (u16)(addr&0x0000ffff);
 561         len = 1;
 562         data = val;
 563         return usbctrl_vendorreq(adapter, request, wvalue,
 564                                  index, &data, len, requesttype);
 565 }
 566
 567 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
 568 {
 569         u8 request;
 570         u8 requesttype;
 571         u16 wvalue;
 572         u16 index;
 573         u16 len;
 574         __le32 data;
 575
 576
 577         request = 0x05;
 578         requesttype = 0x00;/* write_out */
 579         index = 0;/* n/a */
 580
 581         wvalue = (u16)(addr&0x0000ffff);
 582         len = 2;
 583
 584         data = cpu_to_le32(val & 0x0000ffff);
 585
 586         return usbctrl_vendorreq(adapter, request, wvalue,
 587                                  index, &data, len, requesttype);
 588
 589
 590 }
 591
 592 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
 593 {
 594         u8 request;
 595         u8 requesttype;
 596         u16 wvalue;
 597         u16 index;
 598         u16 len;
 599         __le32 data;
 600
 601
 602         request = 0x05;
 603         requesttype = 0x00;/* write_out */
 604         index = 0;/* n/a */
 605
 606         wvalue = (u16)(addr&0x0000ffff);
 607         len = 4;
 608         data = cpu_to_le32(val);
 609
 610         return usbctrl_vendorreq(adapter, request, wvalue,
 611                                  index, &data, len, requesttype);
 612
 613
 614 }
 615
 616 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
 617 {
 618         struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
 619         struct adapter  *padapter = pxmitbuf->padapter;
 620         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
 621
 622         switch (pxmitbuf->flags) {
 623         case VO_QUEUE_INX:
 624                 pxmitpriv->voq_cnt--;
 625                 break;
 626         case VI_QUEUE_INX:
 627                 pxmitpriv->viq_cnt--;
 628                 break;
 629         case BE_QUEUE_INX:
 630                 pxmitpriv->beq_cnt--;
 631                 break;
 632         case BK_QUEUE_INX:
 633                 pxmitpriv->bkq_cnt--;
 634                 break;
 635         case HIGH_QUEUE_INX:
 636 #ifdef CONFIG_88EU_AP_MODE
 637                 rtw_chk_hi_queue_cmd(padapter);
 638 #endif
 639                 break;
 640         default:
 641                 break;
 642         }
 643
 644         if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
 645             padapter->bWritePortCancel) {
 646                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 647                          ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
 648                          padapter->bDriverStopped, padapter->bSurpriseRemoved));
 649                 DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n",
 650                         __func__, padapter->bDriverStopped,
 651                         padapter->bSurpriseRemoved, padapter->bReadPortCancel,
 652                         pxmitbuf->ext_tag);
 653
 654                 goto check_completion;
 655         }
 656
 657         if (purb->status) {
 658                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status));
 659                 DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status);
 660                 if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) {
 661                         sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
 662                 } else if (purb->status == -EINPROGRESS) {
 663                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n"));
 664                         goto check_completion;
 665                 } else if (purb->status == -ENOENT) {
 666                         DBG_88E("%s: -ENOENT\n", __func__);
 667                         goto check_completion;
 668                 } else if (purb->status == -ECONNRESET) {
 669                         DBG_88E("%s: -ECONNRESET\n", __func__);
 670                         goto check_completion;
 671                 } else if (purb->status == -ESHUTDOWN) {
 672                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n"));
 673                         padapter->bDriverStopped = true;
 674                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n"));
 675                         goto check_completion;
 676                 } else {
 677                         padapter->bSurpriseRemoved = true;
 678                         DBG_88E("bSurpriseRemoved = true\n");
 679                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n"));
 680
 681                         goto check_completion;
 682                 }
 683         }
 684
 685 check_completion:
 686         rtw_sctx_done_err(&pxmitbuf->sctx,
 687                           purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
 688                           RTW_SCTX_DONE_SUCCESS);
 689
 690         rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
 691
 692         tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
 693 }
 694
 695 u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, u8 *wmem)
 696 {
 697         unsigned long irqL;
 698         unsigned int pipe;
 699         int status;
 700         u32 ret = _FAIL;
 701         struct urb *purb = NULL;
 702         struct dvobj_priv       *pdvobj = adapter_to_dvobj(padapter);
 703         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
 704         struct xmit_buf *pxmitbuf = (struct xmit_buf *)wmem;
 705         struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
 706         struct usb_device *pusbd = pdvobj->pusbdev;
 707
 708
 709         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n"));
 710
 711         if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
 712             (padapter->pwrctrlpriv.pnp_bstop_trx)) {
 713                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 714                          ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 715                 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
 716                 goto exit;
 717         }
 718
 719         spin_lock_irqsave(&pxmitpriv->lock, irqL);
 720
 721         switch (addr) {
 722         case VO_QUEUE_INX:
 723                 pxmitpriv->voq_cnt++;
 724                 pxmitbuf->flags = VO_QUEUE_INX;
 725                 break;
 726         case VI_QUEUE_INX:
 727                 pxmitpriv->viq_cnt++;
 728                 pxmitbuf->flags = VI_QUEUE_INX;
 729                 break;
 730         case BE_QUEUE_INX:
 731                 pxmitpriv->beq_cnt++;
 732                 pxmitbuf->flags = BE_QUEUE_INX;
 733                 break;
 734         case BK_QUEUE_INX:
 735                 pxmitpriv->bkq_cnt++;
 736                 pxmitbuf->flags = BK_QUEUE_INX;
 737                 break;
 738         case HIGH_QUEUE_INX:
 739                 pxmitbuf->flags = HIGH_QUEUE_INX;
 740                 break;
 741         default:
 742                 pxmitbuf->flags = MGT_QUEUE_INX;
 743                 break;
 744         }
 745
 746         spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
 747
 748         purb    = pxmitbuf->pxmit_urb[0];
 749
 750         /* translate DMA FIFO addr to pipehandle */
 751         pipe = ffaddr2pipehdl(pdvobj, addr);
 752
 753         usb_fill_bulk_urb(purb, pusbd, pipe,
 754                           pxmitframe->buf_addr, /*  pxmitbuf->pbuf */
 755                           cnt,
 756                           usb_write_port_complete,
 757                           pxmitbuf);/* context is pxmitbuf */
 758
 759         status = usb_submit_urb(purb, GFP_ATOMIC);
 760         if (status) {
 761                 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
 762                 DBG_88E("usb_write_port, status =%d\n", status);
 763                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status));
 764
 765                 switch (status) {
 766                 case -ENODEV:
 767                         padapter->bDriverStopped = true;
 768                         break;
 769                 default:
 770                         break;
 771                 }
 772                 goto exit;
 773         }
 774
 775         ret = _SUCCESS;
 776
 777 /*    We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */
 778
 779         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n"));
 780
 781 exit:
 782         if (ret != _SUCCESS)
 783                 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
 784         return ret;
 785 }
 786
 787 void usb_write_port_cancel(struct adapter *padapter)
 788 {
 789         int i, j;
 790         struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
 791
 792         DBG_88E("%s\n", __func__);
 793
 794         padapter->bWritePortCancel = true;
 795
 796         for (i = 0; i < NR_XMITBUFF; i++) {
 797                 for (j = 0; j < 8; j++) {
 798                         if (pxmitbuf->pxmit_urb[j])
 799                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 800                 }
 801                 pxmitbuf++;
 802         }
 803
 804         pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf;
 805         for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
 806                 for (j = 0; j < 8; j++) {
 807                         if (pxmitbuf->pxmit_urb[j])
 808                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 809                 }
 810                 pxmitbuf++;
 811         }
 812 }
 813
 814 void rtl8188eu_recv_tasklet(void *priv)
 815 {
 816         struct sk_buff *pskb;
 817         struct adapter *adapt = priv;
 818         struct recv_priv *precvpriv = &adapt->recvpriv;
 819
 820         while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {
 821                 if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) {
 822                         DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n");
 823                         dev_kfree_skb_any(pskb);
 824                         break;
 825                 }
 826                 recvbuf2recvframe(adapt, pskb);
 827                 skb_reset_tail_pointer(pskb);
 828                 pskb->len = 0;
 829                 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
 830         }
 831 }
 832
 833 void rtl8188eu_xmit_tasklet(void *priv)
 834 {
 835         int ret = false;
 836         struct adapter *adapt = priv;
 837         struct xmit_priv *pxmitpriv = &adapt->xmitpriv;
 838
 839         if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY))
 840                 return;
 841
 842         while (1) {
 843                 if ((adapt->bDriverStopped) ||
 844                     (adapt->bSurpriseRemoved) ||
 845                     (adapt->bWritePortCancel)) {
 846                         DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
 847                         break;
 848                 }
 849
 850                 ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv, NULL);
 851
 852                 if (!ret)
 853                         break;
 854         }
 855 }