2 //-----------------------------------------------------------------------------
9 //-----------------------------------------------------------------------------
14 Dot11d_Init(struct ieee80211_device *ieee)
16 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
18 pDot11dInfo->bEnabled = 0;
20 pDot11dInfo->State = DOT11D_STATE_NONE;
21 pDot11dInfo->CountryIeLen = 0;
22 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
23 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
24 RESET_CIE_WATCHDOG(ieee);
26 printk("Dot11d_Init()\n");
31 // Reset to the state as we are just entering a regulatory domain.
34 Dot11d_Reset(struct ieee80211_device *ieee)
37 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
39 if(!pDot11dInfo->bEnabled)
42 // Clear old channel map
43 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
44 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
45 // Set new channel map
46 for (i=1; i<=11; i++) {
47 (pDot11dInfo->channel_map)[i] = 1;
49 for (i=12; i<=14; i++) {
50 (pDot11dInfo->channel_map)[i] = 2;
53 pDot11dInfo->State = DOT11D_STATE_NONE;
54 pDot11dInfo->CountryIeLen = 0;
55 RESET_CIE_WATCHDOG(ieee);
57 //printk("Dot11d_Reset()\n");
62 // Update country IE from Beacon or Probe Resopnse
63 // and configure PHY for operation in the regulatory domain.
66 // Configure Tx power.
69 // 1. IS_DOT11D_ENABLE() is TRUE.
70 // 2. Input IE is an valid one.
73 Dot11d_UpdateCountryIe(
74 struct ieee80211_device *dev,
80 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
81 u8 i, j, NumTriples, MaxChnlNum;
82 PCHNL_TXPOWER_TRIPLE pTriple;
84 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
85 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
87 NumTriples = (CoutryIeLen - 3) / 3; // skip 3-byte country string.
88 pTriple = (PCHNL_TXPOWER_TRIPLE)(pCoutryIe + 3);
89 for(i = 0; i < NumTriples; i++)
91 if(MaxChnlNum >= pTriple->FirstChnl)
92 { // It is not in a monotonically increasing order, so stop processing.
93 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
96 if(MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + pTriple->NumChnls))
97 { // It is not a valid set of channel id, so stop processing.
98 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
102 for(j = 0 ; j < pTriple->NumChnls; j++)
104 pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
105 pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = pTriple->MaxTxPowerInDbm;
106 MaxChnlNum = pTriple->FirstChnl + j;
109 pTriple = (PCHNL_TXPOWER_TRIPLE)((u8*)pTriple + 3);
112 //printk("Dot11d_UpdateCountryIe(): Channel List:\n");
113 printk("Channel List:");
114 for(i=1; i<= MAX_CHANNEL_NUMBER; i++)
115 if(pDot11dInfo->channel_map[i] > 0)
120 UPDATE_CIE_SRC(dev, pTaddr);
122 pDot11dInfo->CountryIeLen = CoutryIeLen;
123 memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe,CoutryIeLen);
124 pDot11dInfo->State = DOT11D_STATE_LEARNED;
129 DOT11D_GetMaxTxPwrInDbm(
130 struct ieee80211_device *dev,
134 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
135 u8 MaxTxPwrInDbm = 255;
137 if(MAX_CHANNEL_NUMBER < Channel)
139 printk("DOT11D_GetMaxTxPwrInDbm(): Invalid Channel\n");
140 return MaxTxPwrInDbm;
142 if(pDot11dInfo->channel_map[Channel])
144 MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel];
147 return MaxTxPwrInDbm;
153 struct ieee80211_device * dev
156 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
158 switch(pDot11dInfo->State)
160 case DOT11D_STATE_LEARNED:
161 pDot11dInfo->State = DOT11D_STATE_DONE;
164 case DOT11D_STATE_DONE:
165 if( GET_CIE_WATCHDOG(dev) == 0 )
166 { // Reset country IE if previous one is gone.
170 case DOT11D_STATE_NONE:
176 struct ieee80211_device * dev,
180 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
182 if(MAX_CHANNEL_NUMBER < channel)
184 printk("IsLegalChannel(): Invalid Channel\n");
187 if(pDot11dInfo->channel_map[channel] > 0)
193 struct ieee80211_device * dev,
197 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
201 for (i=1; i<= MAX_CHANNEL_NUMBER; i++)
203 if(pDot11dInfo->channel_map[i] > 0)
210 if(MAX_CHANNEL_NUMBER < channel)
212 printk("IsLegalChannel(): Invalid Channel\n");
216 if(pDot11dInfo->channel_map[channel] > 0)
221 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
222 //EXPORT_SYMBOL(Dot11d_Init);
223 //EXPORT_SYMBOL(Dot11d_Reset);
224 //EXPORT_SYMBOL(Dot11d_UpdateCountryIe);
225 //EXPORT_SYMBOL(DOT11D_GetMaxTxPwrInDbm);
226 //EXPORT_SYMBOL(DOT11D_ScanComplete);
227 //EXPORT_SYMBOL(IsLegalChannel);
228 //EXPORT_SYMBOL(ToLegalChannel);
230 EXPORT_SYMBOL_NOVERS(Dot11d_Init);
231 EXPORT_SYMBOL_NOVERS(Dot11d_Reset);
232 EXPORT_SYMBOL_NOVERS(Dot11d_UpdateCountryIe);
233 EXPORT_SYMBOL_NOVERS(DOT11D_GetMaxTxPwrInDbm);
234 EXPORT_SYMBOL_NOVERS(DOT11D_ScanComplete);
235 EXPORT_SYMBOL_NOVERS(IsLegalChannel);
236 EXPORT_SYMBOL_NOVERS(ToLegalChannel);