drivers/staging/rtl8188eu/hal/rtl8188e_sreset.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _RTL8188E_SRESET_C_
  21
  22 #include <rtl8188e_sreset.h>
  23 #include <rtl8188e_hal.h>
  24
  25 void rtl8188e_silentreset_for_specific_platform(struct adapter *padapter)
  26 {
  27 }
  28
  29 void rtl8188e_sreset_xmit_status_check(struct adapter *padapter)
  30 {
  31         struct hal_data_8188e   *pHalData = GET_HAL_DATA(padapter);
  32         struct sreset_priv *psrtpriv = &pHalData->srestpriv;
  33
  34         unsigned long current_time;
  35         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
  36         unsigned int diff_time;
  37         u32 txdma_status;
  38
  39         txdma_status = rtw_read32(padapter, REG_TXDMA_STATUS);
  40         if (txdma_status != 0x00) {
  41                 DBG_88E("%s REG_TXDMA_STATUS:0x%08x\n", __func__, txdma_status);
  42                 rtw_write32(padapter, REG_TXDMA_STATUS, txdma_status);
  43                 rtl8188e_silentreset_for_specific_platform(padapter);
  44         }
  45         /* total xmit irp = 4 */
  46         current_time = jiffies;
  47         if (0 == pxmitpriv->free_xmitbuf_cnt) {
  48                 diff_time = jiffies_to_msecs(current_time - psrtpriv->last_tx_time);
  49
  50                 if (diff_time > 2000) {
  51                         if (psrtpriv->last_tx_complete_time == 0) {
  52                                 psrtpriv->last_tx_complete_time = current_time;
  53                         } else {
  54                                 diff_time = jiffies_to_msecs(current_time - psrtpriv->last_tx_complete_time);
  55                                 if (diff_time > 4000) {
  56                                         DBG_88E("%s tx hang\n", __func__);
  57                                         rtl8188e_silentreset_for_specific_platform(padapter);
  58                                 }
  59                         }
  60                 }
  61         }
  62 }
  63
  64 void rtl8188e_sreset_linked_status_check(struct adapter *padapter)
  65 {
  66         u32 rx_dma_status = 0;
  67         u8 fw_status = 0;
  68         rx_dma_status = rtw_read32(padapter, REG_RXDMA_STATUS);
  69         if (rx_dma_status != 0x00) {
  70                 DBG_88E("%s REG_RXDMA_STATUS:0x%08x\n", __func__, rx_dma_status);
  71                 rtw_write32(padapter, REG_RXDMA_STATUS, rx_dma_status);
  72         }
  73         fw_status = rtw_read8(padapter, REG_FMETHR);
  74         if (fw_status != 0x00) {
  75                 if (fw_status == 1)
  76                         DBG_88E("%s REG_FW_STATUS (0x%02x), Read_Efuse_Fail !!\n", __func__, fw_status);
  77                 else if (fw_status == 2)
  78                         DBG_88E("%s REG_FW_STATUS (0x%02x), Condition_No_Match !!\n", __func__, fw_status);
  79         }
  80 }