drivers/staging/rtl8192e/dot11d.h

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * This program is distributed in the hope that it will be useful, but WITHOUT
   5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   6  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   7  * more details.
   8  *
   9  * You should have received a copy of the GNU General Public License along with
  10  * this program; if not, write to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  12  *
  13  * The full GNU General Public License is included in this distribution in the
  14  * file called LICENSE.
  15  *
  16  * Contact Information:
  17  * wlanfae <wlanfae@realtek.com>
  18 ******************************************************************************/
  19 #ifndef __INC_DOT11D_H
  20 #define __INC_DOT11D_H
  21
  22 #include "rtllib.h"
  23
  24
  25
  26 struct chnl_txpow_triple {
  27         u8 FirstChnl;
  28         u8  NumChnls;
  29         u8  MaxTxPowerInDbm;
  30 };
  31
  32 enum dot11d_state {
  33         DOT11D_STATE_NONE = 0,
  34         DOT11D_STATE_LEARNED,
  35         DOT11D_STATE_DONE,
  36 };
  37
  38 /**
  39  * struct rt_dot11d_info * @CountryIeLen: value greater than 0 if @CountryIeBuf contains
  40  *                valid country information element.
  41  * @chanell_map: holds channel values
  42  *              0 - invalid,
  43  *              1 - valid (active scan),
  44  *              2 - valid (passive scan)
  45  * @CountryIeSrcAddr - Source AP of the country IE
  46  */
  47
  48 struct rt_dot11d_info {
  49
  50         bool bEnabled;
  51
  52         u16 CountryIeLen;
  53         u8  CountryIeBuf[MAX_IE_LEN];
  54         u8  CountryIeSrcAddr[6];
  55         u8  CountryIeWatchdog;
  56
  57         u8  channel_map[MAX_CHANNEL_NUMBER+1];
  58         u8  MaxTxPwrDbmList[MAX_CHANNEL_NUMBER+1];
  59
  60         enum dot11d_state State;
  61 };
  62
  63 static inline void cpMacAddr(unsigned char *des, unsigned char *src)
  64 {
  65         memcpy(des, src, 6);
  66 }
  67
  68 #define GET_DOT11D_INFO(__pIeeeDev)                     \
  69          ((struct rt_dot11d_info *)((__pIeeeDev)->pDot11dInfo))
  70
  71 #define IS_DOT11D_ENABLE(__pIeeeDev)                    \
  72          (GET_DOT11D_INFO(__pIeeeDev)->bEnabled)
  73 #define IS_COUNTRY_IE_VALID(__pIeeeDev)                 \
  74         (GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen > 0)
  75
  76 #define IS_EQUAL_CIE_SRC(__pIeeeDev, __pTa)             \
  77          eqMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
  78 #define UPDATE_CIE_SRC(__pIeeeDev, __pTa)               \
  79         cpMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
  80
  81 #define IS_COUNTRY_IE_CHANGED(__pIeeeDev, __Ie) \
  82         (((__Ie).Length == 0 || (__Ie).Length !=        \
  83         GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen) ?    \
  84         false : (!memcmp(GET_DOT11D_INFO(__pIeeeDev)->CountryIeBuf,     \
  85         (__Ie).Octet, (__Ie).Length)))
  86
  87 #define CIE_WATCHDOG_TH 1
  88 #define GET_CIE_WATCHDOG(__pIeeeDev)                            \
  89          (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
  90 #define RESET_CIE_WATCHDOG(__pIeeeDev) GET_CIE_WATCHDOG(__pIeeeDev) = 0
  91 #define UPDATE_CIE_WATCHDOG(__pIeeeDev) (++GET_CIE_WATCHDOG(__pIeeeDev))
  92
  93 #define IS_DOT11D_STATE_DONE(__pIeeeDev)                        \
  94         (GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
  95
  96 void Dot11d_Init(struct rtllib_device *dev);
  97 void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee);
  98 void Dot11d_Reset(struct rtllib_device *dev);
  99 void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
 100                             u16 CoutryIeLen, u8 *pCoutryIe);
 101 u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel);
 102 void DOT11D_ScanComplete(struct rtllib_device *dev);
 103 int ToLegalChannel(struct rtllib_device *dev, u8 channel);
 104
 105 #endif