kernel/drivers/staging/rtl8723au/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 <usb_ops_linux.h>
  19 #include <rtw_sreset.h>
  20
  21 void rtl8723au_read_port_cancel(struct rtw_adapter *padapter)
  22 {
  23         struct recv_buf *precvbuf;
  24         int i;
  25
  26         precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
  27
  28         DBG_8723A("%s\n", __func__);
  29
  30         padapter->bReadPortCancel = true;
  31
  32         for (i = 0; i < NR_RECVBUFF ; i++) {
  33                 if (precvbuf->purb)
  34                         usb_kill_urb(precvbuf->purb);
  35                 precvbuf++;
  36         }
  37         usb_kill_urb(padapter->recvpriv.int_in_urb);
  38 }
  39
  40 static void usb_write_port23a_complete(struct urb *purb)
  41 {
  42         struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
  43         struct rtw_adapter *padapter = pxmitbuf->padapter;
  44         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
  45         struct hal_data_8723a *phaldata;
  46         unsigned long irqL;
  47
  48         switch (pxmitbuf->flags) {
  49         case HIGH_QUEUE_INX:
  50 #ifdef CONFIG_8723AU_AP_MODE
  51                 rtw_chk_hi_queue_cmd23a(padapter);
  52 #endif
  53                 break;
  54         default:
  55                 break;
  56         }
  57
  58         if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
  59             padapter->bWritePortCancel) {
  60                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
  61                          "usb_write_port23a_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
  62                          padapter->bDriverStopped, padapter->bSurpriseRemoved);
  63                 DBG_8723A("%s(): TX Warning! bDriverStopped(%d) OR "
  64                           "bSurpriseRemoved(%d) bWritePortCancel(%d) "
  65                           "pxmitbuf->ext_tag(%x)\n", __func__,
  66                           padapter->bDriverStopped, padapter->bSurpriseRemoved,
  67                           padapter->bReadPortCancel, pxmitbuf->ext_tag);
  68
  69                 goto check_completion;
  70         }
  71
  72         if (purb->status) {
  73                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
  74                          "usb_write_port23a_complete : purb->status(%d) != 0\n",
  75                          purb->status);
  76                 DBG_8723A("###=> urb_write_port_complete status(%d)\n",
  77                           purb->status);
  78                 if (purb->status == -EPIPE || purb->status == -EPROTO) {
  79                 } else if (purb->status == -EINPROGRESS) {
  80                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
  81                                  "usb_write_port23a_complete: EINPROGESS\n");
  82                         goto check_completion;
  83                 } else if (purb->status == -ENOENT) {
  84                         DBG_8723A("%s: -ENOENT\n", __func__);
  85                         goto check_completion;
  86                 } else if (purb->status == -ECONNRESET) {
  87                         DBG_8723A("%s: -ECONNRESET\n", __func__);
  88                         goto check_completion;
  89                 } else if (purb->status == -ESHUTDOWN) {
  90                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
  91                                  "usb_write_port23a_complete: ESHUTDOWN\n");
  92                         padapter->bDriverStopped = true;
  93                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
  94                                  "usb_write_port23a_complete:bDriverStopped = true\n");
  95                         goto check_completion;
  96                 } else {
  97                         padapter->bSurpriseRemoved = true;
  98                         DBG_8723A("bSurpriseRemoved = true\n");
  99                         RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 100                                  "usb_write_port23a_complete:bSurpriseRemoved = true\n");
 101                         goto check_completion;
 102                 }
 103         }
 104         phaldata = GET_HAL_DATA(padapter);
 105         phaldata->srestpriv.last_tx_complete_time = jiffies;
 106
 107 check_completion:
 108         spin_lock_irqsave(&pxmitpriv->lock_sctx, irqL);
 109         rtw23a_sctx_done_err(&pxmitbuf->sctx,
 110                              purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
 111                              RTW_SCTX_DONE_SUCCESS);
 112         spin_unlock_irqrestore(&pxmitpriv->lock_sctx, irqL);
 113
 114         rtw_free_xmitbuf23a(pxmitpriv, pxmitbuf);
 115
 116         tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
 117 }
 118
 119 int rtl8723au_write_port(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 120                          struct xmit_buf *pxmitbuf)
 121 {
 122         struct urb *purb = NULL;
 123         struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
 124         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 125         struct xmit_frame *pxmitframe;
 126         struct usb_device *pusbd = pdvobj->pusbdev;
 127         unsigned long irqL;
 128         unsigned int pipe, ep_num;
 129         int status;
 130         int ret = _FAIL;
 131
 132         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, "+usb_write_port23a\n");
 133
 134         if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
 135                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 136                          "%s:(padapter->bDriverStopped || padapter->bSurpriseRemoved)!!!\n",
 137                          __func__);
 138                 rtw23a_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
 139                 goto exit;
 140         }
 141
 142         pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
 143         spin_lock_irqsave(&pxmitpriv->lock, irqL);
 144
 145         switch (addr) {
 146         case VO_QUEUE_INX:
 147                 pxmitbuf->flags = VO_QUEUE_INX;
 148                 break;
 149         case VI_QUEUE_INX:
 150                 pxmitbuf->flags = VI_QUEUE_INX;
 151                 break;
 152         case BE_QUEUE_INX:
 153                 pxmitbuf->flags = BE_QUEUE_INX;
 154                 break;
 155         case BK_QUEUE_INX:
 156                 pxmitbuf->flags = BK_QUEUE_INX;
 157                 break;
 158         case HIGH_QUEUE_INX:
 159                 pxmitbuf->flags = HIGH_QUEUE_INX;
 160                 break;
 161         default:
 162                 pxmitbuf->flags = MGT_QUEUE_INX;
 163                 break;
 164         }
 165
 166         spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
 167
 168         purb = pxmitbuf->pxmit_urb[0];
 169
 170         /* translate DMA FIFO addr to pipehandle */
 171         ep_num = pdvobj->Queue2Pipe[addr];
 172         pipe = usb_sndbulkpipe(pusbd, ep_num);
 173
 174         usb_fill_bulk_urb(purb, pusbd, pipe,
 175                           pxmitframe->buf_addr, /*  pxmitbuf->pbuf */
 176                           cnt, usb_write_port23a_complete,
 177                           pxmitbuf);/* context is pxmitbuf */
 178
 179         status = usb_submit_urb(purb, GFP_ATOMIC);
 180         if (!status) {
 181                 struct hal_data_8723a *phaldata = GET_HAL_DATA(padapter);
 182                 phaldata->srestpriv.last_tx_time = jiffies;
 183         } else {
 184                 rtw23a_sctx_done_err(&pxmitbuf->sctx,
 185                                      RTW_SCTX_DONE_WRITE_PORT_ERR);
 186                 DBG_8723A("usb_write_port23a, status =%d\n", status);
 187                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 188                          "usb_write_port23a(): usb_submit_urb, status =%x\n",
 189                          status);
 190
 191                 switch (status) {
 192                 case -ENODEV:
 193                         padapter->bDriverStopped = true;
 194                         break;
 195                 default:
 196                         break;
 197                 }
 198                 goto exit;
 199         }
 200         ret = _SUCCESS;
 201         RT_TRACE(_module_hci_ops_os_c_, _drv_err_, "-usb_write_port23a\n");
 202
 203 exit:
 204         if (ret != _SUCCESS)
 205                 rtw_free_xmitbuf23a(pxmitpriv, pxmitbuf);
 206
 207         return ret;
 208 }
 209
 210 void rtl8723au_write_port_cancel(struct rtw_adapter *padapter)
 211 {
 212         struct xmit_buf *pxmitbuf;
 213         struct list_head *plist;
 214         int j;
 215
 216         DBG_8723A("%s\n", __func__);
 217
 218         padapter->bWritePortCancel = true;
 219
 220         list_for_each(plist, &padapter->xmitpriv.xmitbuf_list) {
 221                 pxmitbuf = container_of(plist, struct xmit_buf, list2);
 222                 for (j = 0; j < 8; j++) {
 223                         if (pxmitbuf->pxmit_urb[j])
 224                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 225                 }
 226         }
 227         list_for_each(plist, &padapter->xmitpriv.xmitextbuf_list) {
 228                 pxmitbuf = container_of(plist, struct xmit_buf, list2);
 229                 for (j = 0; j < 8; j++) {
 230                         if (pxmitbuf->pxmit_urb[j])
 231                                 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 232                 }
 233         }
 234 }