drivers/staging/rt2860/common/eeprom.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27         Module Name:
  28         eeprom.c
  29
  30         Abstract:
  31
  32         Revision History:
  33         Who                     When                    What
  34         --------        ----------              ----------------------------------------------
  35         Name            Date                    Modification logs
  36 */
  37 #include "../rt_config.h"
  38
  39
  40 INT RtmpChipOpsEepromHook(
  41         IN RTMP_ADAPTER *pAd,
  42         IN INT                  infType)
  43 {
  44         RTMP_CHIP_OP    *pChipOps = &pAd->chipOps;
  45 #ifdef RT30xx
  46 #ifdef RTMP_EFUSE_SUPPORT
  47         UINT32                  eFuseCtrl, MacCsr0;
  48         int index;
  49
  50         index = 0;
  51         do
  52         {
  53                 RTMP_IO_READ32(pAd, MAC_CSR0, &MacCsr0);
  54                 pAd->MACVersion = MacCsr0;
  55
  56                 if ((pAd->MACVersion != 0x00) && (pAd->MACVersion != 0xFFFFFFFF))
  57                                 break;
  58
  59                 RTMPusecDelay(10);
  60         } while (index++ < 100);
  61
  62         pAd->bUseEfuse=FALSE;
  63         RTMP_IO_READ32(pAd, EFUSE_CTRL, &eFuseCtrl);
  64         pAd->bUseEfuse = ( (eFuseCtrl & 0x80000000) == 0x80000000) ? 1 : 0;
  65         if(pAd->bUseEfuse)
  66                         {
  67                 pChipOps->eeinit = eFuse_init;
  68                 pChipOps->eeread = rtmp_ee_efuse_read16;
  69                 return 0 ;
  70              }
  71                 else
  72                 DBGPRINT(RT_DEBUG_TRACE, ("NVM is EEPROM\n"));
  73 #endif // RTMP_EFUSE_SUPPORT //
  74 #endif // RT30xx //
  75
  76         switch(infType)
  77                 {
  78 #ifdef RTMP_PCI_SUPPORT
  79                 case RTMP_DEV_INF_PCI:
  80                         pChipOps->eeinit = NULL;
  81                         pChipOps->eeread = rtmp_ee_prom_read16;
  82                                         break;
  83 #endif // RTMP_PCI_SUPPORT //
  84 #ifdef RTMP_USB_SUPPORT
  85                 case RTMP_DEV_INF_USB:
  86                         pChipOps->eeinit = NULL;
  87                         pChipOps->eeread = RTUSBReadEEPROM16;
  88                                         break;
  89 #endif // RTMP_USB_SUPPORT //
  90
  91                 default:
  92                         DBGPRINT(RT_DEBUG_ERROR, ("RtmpChipOpsEepromHook() failed!\n"));
  93                                                 break;
  94                                         }
  95
  96         return 0;
  97 }