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                         precvframe->rx_head = pkt_copy->data;
 129                         precvframe->rx_end = pkt_copy->data + alloc_sz;
 130                         skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
 131                         skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
 132                         memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
 133                         precvframe->rx_tail = pkt_copy->data;
 134                         precvframe->rx_data = pkt_copy->data;
 135                 } else {
 136                         if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
 137                                 DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n");
 138                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
 139                                 goto _exit_recvbuf2recvframe;
 140                         }
 141                         precvframe->pkt = skb_clone(pskb, GFP_ATOMIC);
 142                         if (precvframe->pkt) {
 143                                 precvframe->rx_tail = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE;
 144                                 precvframe->rx_head = precvframe->rx_tail;
 145                                 precvframe->rx_data = precvframe->rx_tail;
 146                                 precvframe->rx_end =  pbuf + pattrib->drvinfo_sz + RXDESC_SIZE + alloc_sz;
 147                         } else {
 148                                 DBG_88E("recvbuf2recvframe: skb_clone fail\n");
 149                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
 150                                 goto _exit_recvbuf2recvframe;
 151                         }
 152                 }
 153
 154                 recvframe_put(precvframe, skb_len);
 155
 156                 switch (haldata->UsbRxAggMode) {
 157                 case USB_RX_AGG_DMA:
 158                 case USB_RX_AGG_MIX:
 159                         pkt_offset = (u16)round_up(pkt_offset, 128);
 160                         break;
 161                 case USB_RX_AGG_USB:
 162                         pkt_offset = (u16)round_up(pkt_offset, 4);
 163                         break;
 164                 case USB_RX_AGG_DISABLE:
 165                 default:
 166                         break;
 167                 }
 168                 if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
 169                         if (pattrib->physt)
 170                                 update_recvframe_phyinfo_88e(precvframe, (struct phy_stat *)pphy_status);
 171                         if (rtw_recv_entry(precvframe) != _SUCCESS) {
 172                                 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
 173                                         ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
 174                         }
 175                 } else {
 176                         /* enqueue recvframe to txrtp queue */
 177                         if (pattrib->pkt_rpt_type == TX_REPORT1) {
 178                                 /* CCX-TXRPT ack for xmit mgmt frames. */
 179                                 handle_txrpt_ccx_88e(adapt, precvframe->rx_data);
 180                         } else if (pattrib->pkt_rpt_type == TX_REPORT2) {
 181                                 ODM_RA_TxRPT2Handle_8188E(
 182                                                         &haldata->odmpriv,
 183                                                         precvframe->rx_data,
 184                                                         pattrib->pkt_len,
 185                                                         pattrib->MacIDValidEntry[0],
 186                                                         pattrib->MacIDValidEntry[1]
 187                                                         );
 188                         } else if (pattrib->pkt_rpt_type == HIS_REPORT) {
 189                                 interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->rx_data);
 190                         }
 191                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 192                 }
 193                 pkt_cnt--;
 194                 transfer_len -= pkt_offset;
 195                 pbuf += pkt_offset;
 196                 precvframe = NULL;
 197                 pkt_copy = NULL;
 198
 199                 if (transfer_len > 0 && pkt_cnt == 0)
 200                         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
 201
 202         } while ((transfer_len > 0) && (pkt_cnt > 0));
 203
 204 _exit_recvbuf2recvframe:
 205
 206         return _SUCCESS;
 207 }
 208
 209 unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
 210 {
 211         unsigned int pipe = 0, ep_num = 0;
 212         struct usb_device *pusbd = pdvobj->pusbdev;
 213
 214         if (addr == RECV_BULK_IN_ADDR) {
 215                 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]);
 216         } else if (addr == RECV_INT_IN_ADDR) {
 217                 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]);
 218         } else if (addr < HW_QUEUE_ENTRY) {
 219                 ep_num = pdvobj->Queue2Pipe[addr];
 220                 pipe = usb_sndbulkpipe(pusbd, ep_num);
 221         }
 222
 223         return pipe;
 224 }
 225
 226 static int usbctrl_vendorreq(struct adapter *adapt, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
 227 {
 228         struct dvobj_priv  *dvobjpriv = adapter_to_dvobj(adapt);
 229         struct usb_device *udev = dvobjpriv->pusbdev;
 230         unsigned int pipe;
 231         int status = 0;
 232         u8 reqtype;
 233         u8 *pIo_buf;
 234         int vendorreq_times = 0;
 235
 236         if ((adapt->bSurpriseRemoved) || (adapt->pwrctrlpriv.pnp_bstop_trx)) {
 237                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usbctrl_vendorreq:(adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 238                 status = -EPERM;
 239                 goto exit;
 240         }
 241
 242         if (len > MAX_VENDOR_REQ_CMD_SIZE) {
 243                 DBG_88E("[%s] Buffer len error ,vendor request failed\n", __func__);
 244                 status = -EINVAL;
 245                 goto exit;
 246         }
 247
 248         if (mutex_lock_interruptible(&dvobjpriv->usb_vendor_req_mutex)) {
 249                 status = -ERESTARTSYS;
 250                 goto exit;
 251         }
 252
 253         /*  Acquire IO memory for vendorreq */
 254         pIo_buf = kmalloc(MAX_USB_IO_CTL_SIZE, GFP_ATOMIC);
 255
 256         if (pIo_buf == NULL) {
 257                 DBG_88E("[%s] pIo_buf == NULL\n", __func__);
 258                 status = -ENOMEM;
 259                 goto release_mutex;
 260         }
 261
 262         while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
 263                 memset(pIo_buf, 0, len);
 264
 265                 if (requesttype == 0x01) {
 266                         pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
 267                         reqtype =  REALTEK_USB_VENQT_READ;
 268                 } else {
 269                         pipe = usb_sndctrlpipe(udev, 0);/* write_out */
 270                         reqtype =  REALTEK_USB_VENQT_WRITE;
 271                         memcpy(pIo_buf, pdata, len);
 272                 }
 273
 274                 status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
 275
 276                 if (status == len) {   /*  Success this control transfer. */
 277                         if (requesttype == 0x01)
 278                                 memcpy(pdata, pIo_buf,  len);
 279                 } else { /*  error cases */
 280                         DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n",
 281                                 value, (requesttype == 0x01) ? "read" : "write",
 282                                 len, status, *(u32 *)pdata, vendorreq_times);
 283
 284                         if (status < 0) {
 285                                 if (status == (-ESHUTDOWN) || status == -ENODEV) {
 286                                         adapt->bSurpriseRemoved = true;
 287                                 } else {
 288                                         adapt->HalData->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
 289                                 }
 290                         } else { /*  status != len && status >= 0 */
 291                                 if (status > 0) {
 292                                         if (requesttype == 0x01) {
 293                                                 /*  For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
 294                                                 memcpy(pdata, pIo_buf,  len);
 295                                         }
 296                                 }
 297                         }
 298
 299                 }
 300
 301                 /*  firmware download is checksumed, don't retry */
 302                 if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len)
 303                         break;
 304         }
 305         kfree(pIo_buf);
 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                         adapt->HalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
 439                         precvbuf->reuse = true;
 440                         usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 441                         break;
 442                 case -EINPROGRESS:
 443                         DBG_88E("ERROR: URB IS IN PROGRESS!\n");
 444                         break;
 445                 default:
 446                         break;
 447                 }
 448         }
 449 }
 450
 451 u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem)
 452 {
 453         struct urb *purb = NULL;
 454         struct recv_buf *precvbuf = (struct recv_buf *)rmem;
 455         struct dvobj_priv       *pdvobj = adapter_to_dvobj(adapter);
 456         struct recv_priv        *precvpriv = &adapter->recvpriv;
 457         struct usb_device       *pusbd = pdvobj->pusbdev;
 458         int err;
 459         unsigned int pipe;
 460         size_t tmpaddr = 0;
 461         size_t alignment = 0;
 462         u32 ret = _SUCCESS;
 463
 464
 465         if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
 466             adapter->pwrctrlpriv.pnp_bstop_trx) {
 467                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 468                          ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 469                 return _FAIL;
 470         }
 471
 472         if (!precvbuf) {
 473                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 474                          ("usb_read_port:precvbuf==NULL\n"));
 475                 return _FAIL;
 476         }
 477
 478         if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
 479                 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
 480                 if (NULL != precvbuf->pskb)
 481                         precvbuf->reuse = true;
 482         }
 483
 484         /* re-assign for linux based on skb */
 485         if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
 486                 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
 487                 if (precvbuf->pskb == NULL) {
 488                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
 489                         DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
 490                         return _FAIL;
 491                 }
 492
 493                 tmpaddr = (size_t)precvbuf->pskb->data;
 494                 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
 495                 skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
 496         } else { /* reuse skb */
 497                 precvbuf->reuse = false;
 498         }
 499
 500         precvpriv->rx_pending_cnt++;
 501
 502         purb = precvbuf->purb;
 503
 504         /* translate DMA FIFO addr to pipehandle */
 505         pipe = ffaddr2pipehdl(pdvobj, addr);
 506
 507         usb_fill_bulk_urb(purb, pusbd, pipe,
 508                           precvbuf->pskb->data,
 509                           MAX_RECVBUF_SZ,
 510                           usb_read_port_complete,
 511                           precvbuf);/* context is precvbuf */
 512
 513         err = usb_submit_urb(purb, GFP_ATOMIC);
 514         if ((err) && (err != (-EPERM))) {
 515                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 516                          ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
 517                          err, purb->status));
 518                 DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
 519                         err, purb->status);
 520                 ret = _FAIL;
 521         }
 522
 523         return ret;
 524 }
 525
 526 void rtw_hal_inirp_deinit(struct adapter *padapter)
 527 {
 528         int i;
 529         struct recv_buf *precvbuf;
 530
 531         precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
 532
 533         DBG_88E("%s\n", __func__);
 534
 535         padapter->bReadPortCancel = true;
 536
 537         for (i = 0; i < NR_RECVBUFF; i++) {
 538                 precvbuf->reuse = true;
 539                 if (precvbuf->purb)
 540                         usb_kill_urb(precvbuf->purb);
 541                 precvbuf++;
 542         }
 543 }
 544
 545 int usb_write8(struct adapter *adapter, u32 addr, u8 val)
 546 {
 547         u8 request;
 548         u8 requesttype;
 549         u16 wvalue;
 550         u16 index;
 551         u16 len;
 552         u8 data;
 553
 554         request = 0x05;
 555         requesttype = 0x00;/* write_out */
 556         index = 0;/* n/a */
 557         wvalue = (u16)(addr&0x0000ffff);
 558         len = 1;
 559         data = val;
 560         return usbctrl_vendorreq(adapter, request, wvalue,
 561                                  index, &data, len, requesttype);
 562 }
 563
 564 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
 565 {
 566         u8 request;
 567         u8 requesttype;
 568         u16 wvalue;
 569         u16 index;
 570         u16 len;
 571         __le32 data;
 572
 573
 574         request = 0x05;
 575         requesttype = 0x00;/* write_out */
 576         index = 0;/* n/a */
 577
 578         wvalue = (u16)(addr&0x0000ffff);
 579         len = 2;
 580
 581         data = cpu_to_le32(val & 0x0000ffff);
 582
 583         return usbctrl_vendorreq(adapter, request, wvalue,
 584                                  index, &data, len, requesttype);
 585
 586
 587 }
 588
 589 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
 590 {
 591         u8 request;
 592         u8 requesttype;
 593         u16 wvalue;
 594         u16 index;
 595         u16 len;
 596         __le32 data;
 597
 598
 599         request = 0x05;
 600         requesttype = 0x00;/* write_out */
 601         index = 0;/* n/a */
 602
 603         wvalue = (u16)(addr&0x0000ffff);
 604         len = 4;
 605         data = cpu_to_le32(val);
 606
 607         return usbctrl_vendorreq(adapter, request, wvalue,
 608                                  index, &data, len, requesttype);
 609
 610
 611 }
 612
 613 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
 614 {
 615         struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
 616         struct adapter  *padapter = pxmitbuf->padapter;
 617         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
 618
 619         switch (pxmitbuf->flags) {
 620         case VO_QUEUE_INX:
 621                 pxmitpriv->voq_cnt--;
 622                 break;
 623         case VI_QUEUE_INX:
 624                 pxmitpriv->viq_cnt--;
 625                 break;
 626         case BE_QUEUE_INX:
 627                 pxmitpriv->beq_cnt--;
 628                 break;
 629         case BK_QUEUE_INX:
 630                 pxmitpriv->bkq_cnt--;
 631                 break;
 632         case HIGH_QUEUE_INX:
 633 #ifdef CONFIG_88EU_AP_MODE
 634                 rtw_chk_hi_queue_cmd(padapter);
 635 #endif
 636                 break;
 637         default:
 638                 break;
 639         }
 640
 641         if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
 642             padapter->bWritePortCancel) {
 643                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 644                          ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
 645                          padapter->bDriverStopped, padapter->bSurpriseRemoved));
 646                 DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n",
 647                         __func__, padapter->bDriverStopped,
 648                         padapter->bSurpriseRemoved, padapter->bReadPortCancel,
 649                         pxmitbuf->ext_tag);
 650
 651                 goto check_completion;
 652         }
 653
 654         if (purb->status) {
 655                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status));
 656                 DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status);
 657                 if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) {
 658                         sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
 659                 } else if (purb->status == -EINPROGRESS) {
 660                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n"));
 661                         goto check_completion;
 662                 } else if (purb->status == -ENOENT) {
 663                         DBG_88E("%s: -ENOENT\n", __func__);
 664                         goto check_completion;
 665                 } else if (purb->status == -ECONNRESET) {
 666                         DBG_88E("%s: -ECONNRESET\n", __func__);
 667                         goto check_completion;
 668                 } else if (purb->status == -ESHUTDOWN) {
 669                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n"));
 670                         padapter->bDriverStopped = true;
 671                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n"));
 672                         goto check_completion;
 673                 } else {
 674                         padapter->bSurpriseRemoved = true;
 675                         DBG_88E("bSurpriseRemoved = true\n");
 676                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n"));
 677
 678                         goto check_completion;
 679                 }
 680         }
 681
 682 check_completion:
 683         rtw_sctx_done_err(&pxmitbuf->sctx,
 684                           purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
 685                           RTW_SCTX_DONE_SUCCESS);
 686
 687         rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
 688
 689         tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
 690 }
 691
 692 u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, struct xmit_buf *xmitbuf)
 693 {
 694         unsigned long irqL;
 695         unsigned int pipe;
 696         int status;
 697         u32 ret = _FAIL;
 698         struct urb *purb = NULL;
 699         struct dvobj_priv       *pdvobj = adapter_to_dvobj(padapter);
 700         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
 701         struct xmit_frame *pxmitframe = (struct xmit_frame *)xmitbuf->priv_data;
 702         struct usb_device *pusbd = pdvobj->pusbdev;
 703
 704
 705         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n"));
 706
 707         if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
 708             (padapter->pwrctrlpriv.pnp_bstop_trx)) {
 709                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 710                          ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
 711                 rtw_sctx_done_err(&xmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
 712                 goto exit;
 713         }
 714
 715         spin_lock_irqsave(&pxmitpriv->lock, irqL);
 716
 717         switch (addr) {
 718         case VO_QUEUE_INX:
 719                 pxmitpriv->voq_cnt++;
 720                 xmitbuf->flags = VO_QUEUE_INX;
 721                 break;
 722         case VI_QUEUE_INX:
 723                 pxmitpriv->viq_cnt++;
 724                 xmitbuf->flags = VI_QUEUE_INX;
 725                 break;
 726         case BE_QUEUE_INX:
 727                 pxmitpriv->beq_cnt++;
 728                 xmitbuf->flags = BE_QUEUE_INX;
 729                 break;
 730         case BK_QUEUE_INX:
 731                 pxmitpriv->bkq_cnt++;
 732                 xmitbuf->flags = BK_QUEUE_INX;
 733                 break;
 734         case HIGH_QUEUE_INX:
 735                 xmitbuf->flags = HIGH_QUEUE_INX;
 736                 break;
 737         default:
 738                 xmitbuf->flags = MGT_QUEUE_INX;
 739                 break;
 740         }
 741
 742         spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
 743
 744         purb    = xmitbuf->pxmit_urb[0];
 745
 746         /* translate DMA FIFO addr to pipehandle */
 747         pipe = ffaddr2pipehdl(pdvobj, addr);
 748
 749         usb_fill_bulk_urb(purb, pusbd, pipe,
 750                           pxmitframe->buf_addr, /*  xmitbuf->pbuf */
 751                           cnt,
 752                           usb_write_port_complete,
 753                           xmitbuf);/* context is xmitbuf */
 754
 755         status = usb_submit_urb(purb, GFP_ATOMIC);
 756         if (status) {
 757                 rtw_sctx_done_err(&xmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
 758                 DBG_88E("usb_write_port, status =%d\n", status);
 759                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status));
 760
 761                 switch (status) {
 762                 case -ENODEV:
 763                         padapter->bDriverStopped = true;
 764                         break;
 765                 default:
 766                         break;
 767                 }
 768                 goto exit;
 769         }
 770
 771         ret = _SUCCESS;
 772
 773 /*    We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */
 774
 775         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n"));
 776
 777 exit:
 778         if (ret != _SUCCESS)
 779                 rtw_free_xmitbuf(pxmitpriv, xmitbuf);
 780         return ret;
 781 }
 782
 783 void usb_write_port_cancel(struct adapter *padapter)
 784 {
 785         int i, j;
 786         struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
 787
 788         DBG_88E("%s\n", __func__);
 789
 790         padapter->bWritePortCancel = true;
 791
 792         for (i = 0; i < NR_XMITBUFF; i++) {
 793                 for (j = 0; j < 8; j++) {
 794                         if (pxmitbuf->pxmit_urb[j])
 795                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 796                 }
 797                 pxmitbuf++;
 798         }
 799
 800         pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf;
 801         for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
 802                 for (j = 0; j < 8; j++) {
 803                         if (pxmitbuf->pxmit_urb[j])
 804                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 805                 }
 806                 pxmitbuf++;
 807         }
 808 }
 809
 810 void rtl8188eu_recv_tasklet(void *priv)
 811 {
 812         struct sk_buff *pskb;
 813         struct adapter *adapt = priv;
 814         struct recv_priv *precvpriv = &adapt->recvpriv;
 815
 816         while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {
 817                 if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) {
 818                         DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n");
 819                         dev_kfree_skb_any(pskb);
 820                         break;
 821                 }
 822                 recvbuf2recvframe(adapt, pskb);
 823                 skb_reset_tail_pointer(pskb);
 824                 pskb->len = 0;
 825                 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
 826         }
 827 }
 828
 829 void rtl8188eu_xmit_tasklet(void *priv)
 830 {
 831         int ret = false;
 832         struct adapter *adapt = priv;
 833         struct xmit_priv *pxmitpriv = &adapt->xmitpriv;
 834
 835         if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY))
 836                 return;
 837
 838         while (1) {
 839                 if ((adapt->bDriverStopped) ||
 840                     (adapt->bSurpriseRemoved) ||
 841                     (adapt->bWritePortCancel)) {
 842                         DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
 843                         break;
 844                 }
 845
 846                 ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv);
 847
 848                 if (!ret)
 849                         break;
 850         }
 851 }