/****************************************************************************** * * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * ******************************************************************************/ #define _USB_OPS_LINUX_C_ #include #include #include static void interrupt_handler_8188eu(struct adapter *adapt, u16 pkt_len, u8 *pbuf) { struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); if (pkt_len != INTERRUPT_MSG_FORMAT_LEN) { DBG_88E("%s Invalid interrupt content length (%d)!\n", __func__, pkt_len); return; } /* HISR */ memcpy(&(haldata->IntArray[0]), &(pbuf[USB_INTR_CONTENT_HISR_OFFSET]), 4); memcpy(&(haldata->IntArray[1]), &(pbuf[USB_INTR_CONTENT_HISRE_OFFSET]), 4); /* C2H Event */ if (pbuf[0] != 0) memcpy(&(haldata->C2hArray[0]), &(pbuf[USB_INTR_CONTENT_C2H_OFFSET]), 16); } static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb) { u8 *pbuf; u8 shift_sz = 0; u16 pkt_cnt; u32 pkt_offset, skb_len, alloc_sz; s32 transfer_len; struct recv_stat *prxstat; struct phy_stat *pphy_status = NULL; struct sk_buff *pkt_copy = NULL; struct recv_frame *precvframe = NULL; struct rx_pkt_attrib *pattrib = NULL; struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); struct recv_priv *precvpriv = &adapt->recvpriv; struct __queue *pfree_recv_queue = &precvpriv->free_recv_queue; transfer_len = (s32)pskb->len; pbuf = pskb->data; prxstat = (struct recv_stat *)pbuf; pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff; do { RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n", prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4)); prxstat = (struct recv_stat *)pbuf; precvframe = rtw_alloc_recvframe(pfree_recv_queue); if (precvframe == NULL) { RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: precvframe==NULL\n")); DBG_88E("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __func__, __LINE__); goto _exit_recvbuf2recvframe; } INIT_LIST_HEAD(&precvframe->list); precvframe->len = 0; update_recvframe_attrib_88e(precvframe, prxstat); pattrib = &precvframe->attrib; if ((pattrib->crc_err) || (pattrib->icv_err)) { DBG_88E("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __func__, pattrib->crc_err, pattrib->icv_err); rtw_free_recvframe(precvframe, pfree_recv_queue); goto _exit_recvbuf2recvframe; } if ((pattrib->physt) && (pattrib->pkt_rpt_type == NORMAL_RX)) pphy_status = (struct phy_stat *)(pbuf + RXDESC_OFFSET); pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len; if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) { RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recvbuf2recvframe: pkt_len<=0\n")); DBG_88E("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfoer_len\n", __func__, __LINE__); rtw_free_recvframe(precvframe, pfree_recv_queue); goto _exit_recvbuf2recvframe; } /* Modified by Albert 20101213 */ /* For 8 bytes IP header alignment. */ if (pattrib->qos) /* Qos data, wireless lan header length is 26 */ shift_sz = 6; else shift_sz = 0; skb_len = pattrib->pkt_len; /* for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */ /* modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */ if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) { if (skb_len <= 1650) alloc_sz = 1664; else alloc_sz = skb_len + 14; } else { alloc_sz = skb_len; /* 6 is for IP header 8 bytes alignment in QoS packet case. */ /* 8 is for skb->data 4 bytes alignment. */ alloc_sz += 14; } pkt_copy = netdev_alloc_skb(adapt->pnetdev, alloc_sz); if (pkt_copy) { pkt_copy->dev = adapt->pnetdev; precvframe->pkt = pkt_copy; precvframe->rx_head = pkt_copy->data; precvframe->rx_end = pkt_copy->data + alloc_sz; skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */ skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */ memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len); precvframe->rx_tail = pkt_copy->data; precvframe->rx_data = pkt_copy->data; } else { if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) { DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n"); rtw_free_recvframe(precvframe, pfree_recv_queue); goto _exit_recvbuf2recvframe; } precvframe->pkt = skb_clone(pskb, GFP_ATOMIC); if (precvframe->pkt) { precvframe->rx_tail = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE; precvframe->rx_head = precvframe->rx_tail; precvframe->rx_data = precvframe->rx_tail; precvframe->rx_end = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE + alloc_sz; } else { DBG_88E("recvbuf2recvframe: skb_clone fail\n"); rtw_free_recvframe(precvframe, pfree_recv_queue); goto _exit_recvbuf2recvframe; } } recvframe_put(precvframe, skb_len); switch (haldata->UsbRxAggMode) { case USB_RX_AGG_DMA: case USB_RX_AGG_MIX: pkt_offset = (u16) round_up(pkt_offset, 128); break; case USB_RX_AGG_USB: pkt_offset = (u16) round_up(pkt_offset, 4); break; case USB_RX_AGG_DISABLE: default: break; } if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */ if (pattrib->physt) update_recvframe_phyinfo_88e(precvframe, (struct phy_stat *)pphy_status); if (rtw_recv_entry(precvframe) != _SUCCESS) { RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n")); } } else { /* enqueue recvframe to txrtp queue */ if (pattrib->pkt_rpt_type == TX_REPORT1) { /* CCX-TXRPT ack for xmit mgmt frames. */ handle_txrpt_ccx_88e(adapt, precvframe->rx_data); } else if (pattrib->pkt_rpt_type == TX_REPORT2) { ODM_RA_TxRPT2Handle_8188E( &haldata->odmpriv, precvframe->rx_data, pattrib->pkt_len, pattrib->MacIDValidEntry[0], pattrib->MacIDValidEntry[1] ); } else if (pattrib->pkt_rpt_type == HIS_REPORT) { interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->rx_data); } rtw_free_recvframe(precvframe, pfree_recv_queue); } pkt_cnt--; transfer_len -= pkt_offset; pbuf += pkt_offset; precvframe = NULL; pkt_copy = NULL; if (transfer_len > 0 && pkt_cnt == 0) pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff; } while ((transfer_len > 0) && (pkt_cnt > 0)); _exit_recvbuf2recvframe: return _SUCCESS; } unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr) { unsigned int pipe = 0, ep_num = 0; struct usb_device *pusbd = pdvobj->pusbdev; if (addr == RECV_BULK_IN_ADDR) { pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]); } else if (addr == RECV_INT_IN_ADDR) { pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]); } else if (addr < HW_QUEUE_ENTRY) { ep_num = pdvobj->Queue2Pipe[addr]; pipe = usb_sndbulkpipe(pusbd, ep_num); } return pipe; } static int usbctrl_vendorreq(struct adapter *adapt, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype) { struct dvobj_priv *dvobjpriv = adapter_to_dvobj(adapt); struct usb_device *udev = dvobjpriv->pusbdev; unsigned int pipe; int status = 0; u8 reqtype; u8 *pIo_buf; int vendorreq_times = 0; if ((adapt->bSurpriseRemoved) || (adapt->pwrctrlpriv.pnp_bstop_trx)) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usbctrl_vendorreq:(adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n")); status = -EPERM; goto exit; } if (len > MAX_VENDOR_REQ_CMD_SIZE) { DBG_88E("[%s] Buffer len error ,vendor request failed\n", __func__); status = -EINVAL; goto exit; } _enter_critical_mutex(&dvobjpriv->usb_vendor_req_mutex, NULL); /* Acquire IO memory for vendorreq */ pIo_buf = dvobjpriv->usb_vendor_req_buf; if (pIo_buf == NULL) { DBG_88E("[%s] pIo_buf == NULL\n", __func__); status = -ENOMEM; goto release_mutex; } while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) { memset(pIo_buf, 0, len); if (requesttype == 0x01) { pipe = usb_rcvctrlpipe(udev, 0);/* read_in */ reqtype = REALTEK_USB_VENQT_READ; } else { pipe = usb_sndctrlpipe(udev, 0);/* write_out */ reqtype = REALTEK_USB_VENQT_WRITE; memcpy(pIo_buf, pdata, len); } status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT); if (status == len) { /* Success this control transfer. */ if (requesttype == 0x01) memcpy(pdata, pIo_buf, len); } else { /* error cases */ DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n", value, (requesttype == 0x01) ? "read" : "write", len, status, *(u32 *)pdata, vendorreq_times); if (status < 0) { if (status == (-ESHUTDOWN) || status == -ENODEV) { adapt->bSurpriseRemoved = true; } else { struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); haldata->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL; } } else { /* status != len && status >= 0 */ if (status > 0) { if (requesttype == 0x01) { /* For Control read transfer, we have to copy the read data from pIo_buf to pdata. */ memcpy(pdata, pIo_buf, len); } } } } /* firmware download is checksumed, don't retry */ if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len) break; } release_mutex: mutex_unlock(&dvobjpriv->usb_vendor_req_mutex); exit: return status; } u8 usb_read8(struct adapter *adapter, u32 addr) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; u8 data = 0; request = 0x05; requesttype = 0x01;/* read_in */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 1; usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return data; } u16 usb_read16(struct adapter *adapter, u32 addr) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; __le32 data; request = 0x05; requesttype = 0x01;/* read_in */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 2; usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return (u16)(le32_to_cpu(data)&0xffff); } u32 usb_read32(struct adapter *adapter, u32 addr) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; __le32 data; request = 0x05; requesttype = 0x01;/* read_in */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 4; usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return le32_to_cpu(data); } static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs) { struct recv_buf *precvbuf = (struct recv_buf *)purb->context; struct adapter *adapt = (struct adapter *)precvbuf->adapter; struct recv_priv *precvpriv = &adapt->recvpriv; RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete!!!\n")); precvpriv->rx_pending_cnt--; if (adapt->bSurpriseRemoved || adapt->bDriverStopped || adapt->bReadPortCancel) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", adapt->bDriverStopped, adapt->bSurpriseRemoved)); precvbuf->reuse = true; DBG_88E("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n", __func__, adapt->bDriverStopped, adapt->bSurpriseRemoved, adapt->bReadPortCancel); return; } if (purb->status == 0) { /* SUCCESS */ if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n")); precvbuf->reuse = true; usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf); DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__); } else { skb_put(precvbuf->pskb, purb->actual_length); skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb); if (skb_queue_len(&precvpriv->rx_skb_queue) <= 1) tasklet_schedule(&precvpriv->recv_tasklet); precvbuf->pskb = NULL; precvbuf->reuse = false; usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf); } } else { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status)); DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status); skb_put(precvbuf->pskb, purb->actual_length); precvbuf->pskb = NULL; switch (purb->status) { case -EINVAL: case -EPIPE: case -ENODEV: case -ESHUTDOWN: adapt->bSurpriseRemoved = true; case -ENOENT: adapt->bDriverStopped = true; RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n")); break; case -EPROTO: case -EOVERFLOW: { struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); haldata->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL; } precvbuf->reuse = true; usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf); break; case -EINPROGRESS: DBG_88E("ERROR: URB IS IN PROGRESS!\n"); break; default: break; } } } u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem) { struct urb *purb = NULL; struct recv_buf *precvbuf = (struct recv_buf *)rmem; struct dvobj_priv *pdvobj = adapter_to_dvobj(adapter); struct recv_priv *precvpriv = &adapter->recvpriv; struct usb_device *pusbd = pdvobj->pusbdev; int err; unsigned int pipe; size_t tmpaddr = 0; size_t alignment = 0; u32 ret = _SUCCESS; if (adapter->bDriverStopped || adapter->bSurpriseRemoved || adapter->pwrctrlpriv.pnp_bstop_trx) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n")); return _FAIL; } if (!precvbuf) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port:precvbuf==NULL\n")); return _FAIL; } if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) { precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue); if (NULL != precvbuf->pskb) precvbuf->reuse = true; } /* re-assign for linux based on skb */ if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) { precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ); if (precvbuf->pskb == NULL) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n")); DBG_88E("#### usb_read_port() alloc_skb fail!#####\n"); return _FAIL; } tmpaddr = (size_t)precvbuf->pskb->data; alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1); skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment)); } else { /* reuse skb */ precvbuf->reuse = false; } precvpriv->rx_pending_cnt++; purb = precvbuf->purb; /* translate DMA FIFO addr to pipehandle */ pipe = ffaddr2pipehdl(pdvobj, addr); usb_fill_bulk_urb(purb, pusbd, pipe, precvbuf->pskb->data, MAX_RECVBUF_SZ, usb_read_port_complete, precvbuf);/* context is precvbuf */ err = usb_submit_urb(purb, GFP_ATOMIC); if ((err) && (err != (-EPERM))) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x", err, purb->status)); DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n", err, purb->status); ret = _FAIL; } return ret; } void usb_read_port_cancel(struct adapter *padapter) { int i; struct recv_buf *precvbuf; precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf; DBG_88E("%s\n", __func__); padapter->bReadPortCancel = true; for (i = 0; i < NR_RECVBUFF; i++) { precvbuf->reuse = true; if (precvbuf->purb) usb_kill_urb(precvbuf->purb); precvbuf++; } } int usb_write8(struct adapter *adapter, u32 addr, u8 val) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; u8 data; int ret; request = 0x05; requesttype = 0x00;/* write_out */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 1; data = val; ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return ret; } int usb_write16(struct adapter *adapter, u32 addr, u16 val) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; __le32 data; int ret; request = 0x05; requesttype = 0x00;/* write_out */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 2; data = cpu_to_le32(val & 0x0000ffff); ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return ret; } int usb_write32(struct adapter *adapter, u32 addr, u32 val) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; __le32 data; int ret; request = 0x05; requesttype = 0x00;/* write_out */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = 4; data = cpu_to_le32(val); ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype); return ret; } int usb_writeN(struct adapter *adapter, u32 addr, u32 length, u8 *pdata) { u8 request; u8 requesttype; u16 wvalue; u16 index; u16 len; u8 buf[VENDOR_CMD_MAX_DATA_LEN] = {0}; int ret; request = 0x05; requesttype = 0x00;/* write_out */ index = 0;/* n/a */ wvalue = (u16)(addr&0x0000ffff); len = length; memcpy(buf, pdata, len); ret = usbctrl_vendorreq(adapter, request, wvalue, index, buf, len, requesttype); return RTW_STATUS_CODE(ret); } static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs) { struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context; struct adapter *padapter = pxmitbuf->padapter; struct xmit_priv *pxmitpriv = &padapter->xmitpriv; switch (pxmitbuf->flags) { case VO_QUEUE_INX: pxmitpriv->voq_cnt--; break; case VI_QUEUE_INX: pxmitpriv->viq_cnt--; break; case BE_QUEUE_INX: pxmitpriv->beq_cnt--; break; case BK_QUEUE_INX: pxmitpriv->bkq_cnt--; break; case HIGH_QUEUE_INX: #ifdef CONFIG_88EU_AP_MODE rtw_chk_hi_queue_cmd(padapter); #endif break; default: break; } if (padapter->bSurpriseRemoved || padapter->bDriverStopped || padapter->bWritePortCancel) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved)); DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n", __func__, padapter->bDriverStopped, padapter->bSurpriseRemoved, padapter->bReadPortCancel, pxmitbuf->ext_tag); goto check_completion; } if (purb->status) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status)); DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status); if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) { sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL); } else if (purb->status == -EINPROGRESS) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n")); goto check_completion; } else if (purb->status == -ENOENT) { DBG_88E("%s: -ENOENT\n", __func__); goto check_completion; } else if (purb->status == -ECONNRESET) { DBG_88E("%s: -ECONNRESET\n", __func__); goto check_completion; } else if (purb->status == -ESHUTDOWN) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n")); padapter->bDriverStopped = true; RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n")); goto check_completion; } else { padapter->bSurpriseRemoved = true; DBG_88E("bSurpriseRemoved = true\n"); RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n")); goto check_completion; } } check_completion: rtw_sctx_done_err(&pxmitbuf->sctx, purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR : RTW_SCTX_DONE_SUCCESS); rtw_free_xmitbuf(pxmitpriv, pxmitbuf); tasklet_hi_schedule(&pxmitpriv->xmit_tasklet); } u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, u8 *wmem) { unsigned long irqL; unsigned int pipe; int status; u32 ret = _FAIL; struct urb *purb = NULL; struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter); struct xmit_priv *pxmitpriv = &padapter->xmitpriv; struct xmit_buf *pxmitbuf = (struct xmit_buf *)wmem; struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data; struct usb_device *pusbd = pdvobj->pusbdev; RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n")); if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) || (padapter->pwrctrlpriv.pnp_bstop_trx)) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n")); rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY); goto exit; } spin_lock_irqsave(&pxmitpriv->lock, irqL); switch (addr) { case VO_QUEUE_INX: pxmitpriv->voq_cnt++; pxmitbuf->flags = VO_QUEUE_INX; break; case VI_QUEUE_INX: pxmitpriv->viq_cnt++; pxmitbuf->flags = VI_QUEUE_INX; break; case BE_QUEUE_INX: pxmitpriv->beq_cnt++; pxmitbuf->flags = BE_QUEUE_INX; break; case BK_QUEUE_INX: pxmitpriv->bkq_cnt++; pxmitbuf->flags = BK_QUEUE_INX; break; case HIGH_QUEUE_INX: pxmitbuf->flags = HIGH_QUEUE_INX; break; default: pxmitbuf->flags = MGT_QUEUE_INX; break; } spin_unlock_irqrestore(&pxmitpriv->lock, irqL); purb = pxmitbuf->pxmit_urb[0]; /* translate DMA FIFO addr to pipehandle */ pipe = ffaddr2pipehdl(pdvobj, addr); usb_fill_bulk_urb(purb, pusbd, pipe, pxmitframe->buf_addr, /* pxmitbuf->pbuf */ cnt, usb_write_port_complete, pxmitbuf);/* context is pxmitbuf */ status = usb_submit_urb(purb, GFP_ATOMIC); if (status) { rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR); DBG_88E("usb_write_port, status =%d\n", status); RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status)); switch (status) { case -ENODEV: padapter->bDriverStopped = true; break; default: break; } goto exit; } ret = _SUCCESS; /* We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */ RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n")); exit: if (ret != _SUCCESS) rtw_free_xmitbuf(pxmitpriv, pxmitbuf); return ret; } void usb_write_port_cancel(struct adapter *padapter) { int i, j; struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf; DBG_88E("%s\n", __func__); padapter->bWritePortCancel = true; for (i = 0; i < NR_XMITBUFF; i++) { for (j = 0; j < 8; j++) { if (pxmitbuf->pxmit_urb[j]) usb_kill_urb(pxmitbuf->pxmit_urb[j]); } pxmitbuf++; } pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf; for (i = 0; i < NR_XMIT_EXTBUFF; i++) { for (j = 0; j < 8; j++) { if (pxmitbuf->pxmit_urb[j]) usb_kill_urb(pxmitbuf->pxmit_urb[j]); } pxmitbuf++; } } void rtl8188eu_recv_tasklet(void *priv) { struct sk_buff *pskb; struct adapter *adapt = (struct adapter *)priv; struct recv_priv *precvpriv = &adapt->recvpriv; while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) { if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) { DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n"); dev_kfree_skb_any(pskb); break; } recvbuf2recvframe(adapt, pskb); skb_reset_tail_pointer(pskb); pskb->len = 0; skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb); } } void rtl8188eu_xmit_tasklet(void *priv) { int ret = false; struct adapter *adapt = (struct adapter *)priv; struct xmit_priv *pxmitpriv = &adapt->xmitpriv; if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY)) return; while (1) { if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved) || (adapt->bWritePortCancel)) { DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n"); break; } ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv, NULL); if (!ret) break; } }