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