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