release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/rt2860/common/cmm_cfg.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         cmm_cfg.c
  29
  30     Abstract:
  31     Ralink WiFi Driver configuration related subroutines
  32
  33     Revision History:
  34     Who          When          What
  35     ---------    ----------    ----------------------------------------------
  36 */
  37
  38 #include "../rt_config.h"
  39
  40 char *GetPhyMode(int Mode)
  41 {
  42         switch (Mode) {
  43         case MODE_CCK:
  44                 return "CCK";
  45
  46         case MODE_OFDM:
  47                 return "OFDM";
  48         case MODE_HTMIX:
  49                 return "HTMIX";
  50
  51         case MODE_HTGREENFIELD:
  52                 return "GREEN";
  53         default:
  54                 return "N/A";
  55         }
  56 }
  57
  58 char *GetBW(int BW)
  59 {
  60         switch (BW) {
  61         case BW_10:
  62                 return "10M";
  63
  64         case BW_20:
  65                 return "20M";
  66         case BW_40:
  67                 return "40M";
  68         default:
  69                 return "N/A";
  70         }
  71 }
  72
  73 /*
  74     ==========================================================================
  75     Description:
  76         Set Country Region to pAd->CommonCfg.CountryRegion.
  77         This command will not work, if the field of CountryRegion in eeprom is programmed.
  78
  79     Return:
  80         TRUE if all parameters are OK, FALSE otherwise
  81     ==========================================================================
  82 */
  83 int RT_CfgSetCountryRegion(struct rt_rtmp_adapter *pAd, char *arg, int band)
  84 {
  85         long region, regionMax;
  86         u8 *pCountryRegion;
  87
  88         region = simple_strtol(arg, 0, 10);
  89
  90         if (band == BAND_24G) {
  91                 pCountryRegion = &pAd->CommonCfg.CountryRegion;
  92                 regionMax = REGION_MAXIMUM_BG_BAND;
  93         } else {
  94                 pCountryRegion = &pAd->CommonCfg.CountryRegionForABand;
  95                 regionMax = REGION_MAXIMUM_A_BAND;
  96         }
  97
  98         /* TODO: Is it neccesay for following check??? */
  99         /* Country can be set only when EEPROM not programmed */
 100         if (*pCountryRegion & 0x80) {
 101                 DBGPRINT(RT_DEBUG_ERROR,
 102                          ("CfgSetCountryRegion():CountryRegion in eeprom was programmed\n"));
 103                 return FALSE;
 104         }
 105
 106         if ((region >= 0) && (region <= REGION_MAXIMUM_BG_BAND)) {
 107                 *pCountryRegion = (u8)region;
 108         } else if ((region == REGION_31_BG_BAND) && (band == BAND_24G)) {
 109                 *pCountryRegion = (u8)region;
 110         } else {
 111                 DBGPRINT(RT_DEBUG_ERROR,
 112                          ("CfgSetCountryRegion():region(%ld) out of range!\n",
 113                           region));
 114                 return FALSE;
 115         }
 116
 117         return TRUE;
 118
 119 }
 120
 121 /*
 122     ==========================================================================
 123     Description:
 124         Set Wireless Mode
 125     Return:
 126         TRUE if all parameters are OK, FALSE otherwise
 127     ==========================================================================
 128 */
 129 int RT_CfgSetWirelessMode(struct rt_rtmp_adapter *pAd, char *arg)
 130 {
 131         int MaxPhyMode = PHY_11G;
 132         long WirelessMode;
 133
 134         MaxPhyMode = PHY_11N_5G;
 135
 136         WirelessMode = simple_strtol(arg, 0, 10);
 137         if (WirelessMode <= MaxPhyMode) {
 138                 pAd->CommonCfg.PhyMode = WirelessMode;
 139                 return TRUE;
 140         }
 141
 142         return FALSE;
 143
 144 }
 145
 146 int RT_CfgSetShortSlot(struct rt_rtmp_adapter *pAd, char *arg)
 147 {
 148         long ShortSlot;
 149
 150         ShortSlot = simple_strtol(arg, 0, 10);
 151
 152         if (ShortSlot == 1)
 153                 pAd->CommonCfg.bUseShortSlotTime = TRUE;
 154         else if (ShortSlot == 0)
 155                 pAd->CommonCfg.bUseShortSlotTime = FALSE;
 156         else
 157                 return FALSE;   /*Invalid argument */
 158
 159         return TRUE;
 160 }
 161
 162 /*
 163     ==========================================================================
 164     Description:
 165         Set WEP KEY base on KeyIdx
 166     Return:
 167         TRUE if all parameters are OK, FALSE otherwise
 168     ==========================================================================
 169 */
 170 int RT_CfgSetWepKey(struct rt_rtmp_adapter *pAd,
 171                     char *keyString,
 172                     struct rt_cipher_key *pSharedKey, int keyIdx)
 173 {
 174         int KeyLen;
 175         int i;
 176         u8 CipherAlg = CIPHER_NONE;
 177         BOOLEAN bKeyIsHex = FALSE;
 178
 179         /* TODO: Shall we do memset for the original key info?? */
 180         memset(pSharedKey, 0, sizeof(struct rt_cipher_key));
 181         KeyLen = strlen(keyString);
 182         switch (KeyLen) {
 183         case 5:         /*wep 40 Ascii type */
 184         case 13:                /*wep 104 Ascii type */
 185                 bKeyIsHex = FALSE;
 186                 pSharedKey->KeyLen = KeyLen;
 187                 NdisMoveMemory(pSharedKey->Key, keyString, KeyLen);
 188                 break;
 189
 190         case 10:                /*wep 40 Hex type */
 191         case 26:                /*wep 104 Hex type */
 192                 for (i = 0; i < KeyLen; i++) {
 193                         if (!isxdigit(*(keyString + i)))
 194                                 return FALSE;   /*Not Hex value; */
 195                 }
 196                 bKeyIsHex = TRUE;
 197                 pSharedKey->KeyLen = KeyLen / 2;
 198                 AtoH(keyString, pSharedKey->Key, pSharedKey->KeyLen);
 199                 break;
 200
 201         default:                /*Invalid argument */
 202                 DBGPRINT(RT_DEBUG_TRACE,
 203                          ("RT_CfgSetWepKey(keyIdx=%d):Invalid argument (arg=%s)\n",
 204                           keyIdx, keyString));
 205                 return FALSE;
 206         }
 207
 208         pSharedKey->CipherAlg = ((KeyLen % 5) ? CIPHER_WEP128 : CIPHER_WEP64);
 209         DBGPRINT(RT_DEBUG_TRACE,
 210                  ("RT_CfgSetWepKey:(KeyIdx=%d,type=%s, Alg=%s)\n", keyIdx,
 211                   (bKeyIsHex == FALSE ? "Ascii" : "Hex"),
 212                   CipherName[CipherAlg]));
 213
 214         return TRUE;
 215 }
 216
 217 /*
 218     ==========================================================================
 219     Description:
 220         Set WPA PSK key
 221
 222     Arguments:
 223         pAdapter        Pointer to our adapter
 224         keyString       WPA pre-shared key string
 225         pHashStr        String used for password hash function
 226         hashStrLen      Lenght of the hash string
 227         pPMKBuf         Output buffer of WPAPSK key
 228
 229     Return:
 230         TRUE if all parameters are OK, FALSE otherwise
 231     ==========================================================================
 232 */
 233 int RT_CfgSetWPAPSKKey(struct rt_rtmp_adapter *pAd,
 234                        char *keyString,
 235                        u8 * pHashStr,
 236                        int hashStrLen, u8 *pPMKBuf)
 237 {
 238         int keyLen;
 239         u8 keyMaterial[40];
 240
 241         keyLen = strlen(keyString);
 242         if ((keyLen < 8) || (keyLen > 64)) {
 243                 DBGPRINT(RT_DEBUG_TRACE,
 244                          ("WPAPSK Key length(%d) error, required 8 ~ 64 characters!(keyStr=%s)\n",
 245                           keyLen, keyString));
 246                 return FALSE;
 247         }
 248
 249         memset(pPMKBuf, 0, 32);
 250         if (keyLen == 64) {
 251                 AtoH(keyString, pPMKBuf, 32);
 252         } else {
 253                 PasswordHash(keyString, pHashStr, hashStrLen, keyMaterial);
 254                 NdisMoveMemory(pPMKBuf, keyMaterial, 32);
 255         }
 256
 257         return TRUE;
 258 }