diff options
Diffstat (limited to 'drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c')
| -rw-r--r-- | drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c | 799 |
1 files changed, 799 insertions, 0 deletions
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c new file mode 100644 index 0000000..acd40bf --- /dev/null +++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c @@ -0,0 +1,799 @@ +// SPDX-License-Identifier: GPL-2.0 +/****************************************************************************** + * + * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. + * + ******************************************************************************/ +#define _USB_OPS_LINUX_C_ + +#include <drv_types.h> +#include <recv_osdep.h> +#include <rtw_sreset.h> + +static void interrupt_handler_8188eu(struct adapter *adapt, u16 pkt_len, u8 *pbuf) +{ + struct hal_data_8188e *haldata = adapt->HalData; + + 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 = adapt->HalData; + 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) { + 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); + + 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; + 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); + skb_put(precvframe->pkt, skb_len); + } else { + DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n"); + rtw_free_recvframe(precvframe, pfree_recv_queue); + goto _exit_recvbuf2recvframe; + } + + 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, pphy_status); + if (rtw_recv_entry(precvframe) != _SUCCESS) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, + ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n")); + } + } else if (pattrib->pkt_rpt_type == TX_REPORT1) { + /* CCX-TXRPT ack for xmit mgmt frames. */ + handle_txrpt_ccx_88e(adapt, precvframe->pkt->data); + rtw_free_recvframe(precvframe, pfree_recv_queue); + } else if (pattrib->pkt_rpt_type == TX_REPORT2) { + ODM_RA_TxRPT2Handle_8188E( + &haldata->odmpriv, + precvframe->pkt->data, + pattrib->pkt_len, + pattrib->MacIDValidEntry[0], + pattrib->MacIDValidEntry[1] + ); + rtw_free_recvframe(precvframe, pfree_recv_queue); + } else if (pattrib->pkt_rpt_type == HIS_REPORT) { + interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->pkt->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; + } + + if (mutex_lock_interruptible(&dvobjpriv->usb_vendor_req_mutex)) { + status = -ERESTARTSYS; + goto exit; + } + + /* Acquire IO memory for vendorreq */ + pIo_buf = kmalloc(MAX_USB_IO_CTL_SIZE, GFP_ATOMIC); + + if (!pIo_buf) { + 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 { + 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; + } + kfree(pIo_buf); + +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")); + + 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, RECV_BULK_IN_ADDR, 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, RECV_BULK_IN_ADDR, 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; + /* fall through */ + 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: + adapt->HalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL; + precvbuf->reuse = true; + usb_read_port(adapt, RECV_BULK_IN_ADDR, precvbuf); + break; + case -EINPROGRESS: + DBG_88E("ERROR: URB IS IN PROGRESS!\n"); + break; + default: + break; + } + } +} + +u32 usb_read_port(struct adapter *adapter, u32 addr, struct recv_buf *precvbuf) +{ + struct urb *purb = NULL; + 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; + 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) { + precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue); + if (precvbuf->pskb) + precvbuf->reuse = true; + } + + /* re-assign for linux based on skb */ + if (!precvbuf->reuse || !precvbuf->pskb) { + precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ); + if (!precvbuf->pskb) { + 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; + } + } else { /* reuse skb */ + precvbuf->reuse = false; + } + + 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 rtw_hal_inirp_deinit(struct adapter *padapter) +{ + int i; + struct recv_buf *precvbuf; + + precvbuf = 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; + + request = 0x05; + requesttype = 0x00;/* write_out */ + index = 0;/* n/a */ + wvalue = (u16)(addr&0x0000ffff); + len = 1; + data = val; + return usbctrl_vendorreq(adapter, request, wvalue, + index, &data, len, requesttype); +} + +int usb_write16(struct adapter *adapter, u32 addr, u16 val) +{ + u8 request; + u8 requesttype; + u16 wvalue; + u16 index; + u16 len; + __le32 data; + + request = 0x05; + requesttype = 0x00;/* write_out */ + index = 0;/* n/a */ + + wvalue = (u16)(addr&0x0000ffff); + len = 2; + + data = cpu_to_le32(val & 0x0000ffff); + + return usbctrl_vendorreq(adapter, request, wvalue, + index, &data, len, requesttype); +} + +int usb_write32(struct adapter *adapter, u32 addr, u32 val) +{ + u8 request; + u8 requesttype; + u16 wvalue; + u16 index; + u16 len; + __le32 data; + + request = 0x05; + requesttype = 0x00;/* write_out */ + index = 0;/* n/a */ + + wvalue = (u16)(addr&0x0000ffff); + len = 4; + data = cpu_to_le32(val); + + return usbctrl_vendorreq(adapter, request, wvalue, + index, &data, len, requesttype); +} + +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 CPTCFG_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, struct xmit_buf *xmitbuf) +{ + 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_frame *pxmitframe = (struct xmit_frame *)xmitbuf->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(&xmitbuf->sctx, RTW_SCTX_DONE_TX_DENY); + goto exit; + } + + spin_lock_irqsave(&pxmitpriv->lock, irqL); + + switch (addr) { + case VO_QUEUE_INX: + pxmitpriv->voq_cnt++; + xmitbuf->flags = VO_QUEUE_INX; + break; + case VI_QUEUE_INX: + pxmitpriv->viq_cnt++; + xmitbuf->flags = VI_QUEUE_INX; + break; + case BE_QUEUE_INX: + pxmitpriv->beq_cnt++; + xmitbuf->flags = BE_QUEUE_INX; + break; + case BK_QUEUE_INX: + pxmitpriv->bkq_cnt++; + xmitbuf->flags = BK_QUEUE_INX; + break; + case HIGH_QUEUE_INX: + xmitbuf->flags = HIGH_QUEUE_INX; + break; + default: + xmitbuf->flags = MGT_QUEUE_INX; + break; + } + + spin_unlock_irqrestore(&pxmitpriv->lock, irqL); + + purb = xmitbuf->pxmit_urb[0]; + + /* translate DMA FIFO addr to pipehandle */ + pipe = ffaddr2pipehdl(pdvobj, addr); + + usb_fill_bulk_urb(purb, pusbd, pipe, + pxmitframe->buf_addr, /* xmitbuf->pbuf */ + cnt, + usb_write_port_complete, + xmitbuf);/* context is xmitbuf */ + + status = usb_submit_urb(purb, GFP_ATOMIC); + if (status) { + rtw_sctx_done_err(&xmitbuf->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, xmitbuf); + 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 = 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 = 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); + + if (!ret) + break; + } +} |