1 //-----------------------------------------------------------------------------
8 //-----------------------------------------------------------------------------
13 Dot11d_Init(struct ieee80211_device *ieee)
15 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
17 pDot11dInfo->bEnabled = 0;
19 pDot11dInfo->State = DOT11D_STATE_NONE;
20 pDot11dInfo->CountryIeLen = 0;
21 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
22 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
23 RESET_CIE_WATCHDOG(ieee);
25 printk("Dot11d_Init()\n");
30 // Reset to the state as we are just entering a regulatory domain.
33 Dot11d_Reset(struct ieee80211_device *ieee)
36 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
37 // Clear old channel map
38 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
39 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
40 // Set new channel map
41 for (i=1; i<=11; i++) {
42 (pDot11dInfo->channel_map)[i] = 1;
44 for (i=12; i<=14; i++) {
45 (pDot11dInfo->channel_map)[i] = 2;
48 pDot11dInfo->State = DOT11D_STATE_NONE;
49 pDot11dInfo->CountryIeLen = 0;
50 RESET_CIE_WATCHDOG(ieee);
52 //printk("Dot11d_Reset()\n");
57 // Update country IE from Beacon or Probe Resopnse
58 // and configure PHY for operation in the regulatory domain.
61 // Configure Tx power.
64 // 1. IS_DOT11D_ENABLE() is TRUE.
65 // 2. Input IE is an valid one.
68 Dot11d_UpdateCountryIe(
69 struct ieee80211_device *dev,
75 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
76 u8 i, j, NumTriples, MaxChnlNum;
77 PCHNL_TXPOWER_TRIPLE pTriple;
79 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
80 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
82 NumTriples = (CoutryIeLen - 3) / 3; // skip 3-byte country string.
83 pTriple = (PCHNL_TXPOWER_TRIPLE)(pCoutryIe + 3);
84 for(i = 0; i < NumTriples; i++)
86 if(MaxChnlNum >= pTriple->FirstChnl)
87 { // It is not in a monotonically increasing order, so stop processing.
88 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
91 if(MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + pTriple->NumChnls))
92 { // It is not a valid set of channel id, so stop processing.
93 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
97 for(j = 0 ; j < pTriple->NumChnls; j++)
99 pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
100 pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = pTriple->MaxTxPowerInDbm;
101 MaxChnlNum = pTriple->FirstChnl + j;
104 pTriple = (PCHNL_TXPOWER_TRIPLE)((u8 *)pTriple + 3);
106 //printk("Dot11d_UpdateCountryIe(): Channel List:\n");
107 printk("Channel List:");
108 for(i=1; i<= MAX_CHANNEL_NUMBER; i++)
109 if(pDot11dInfo->channel_map[i] > 0)
113 UPDATE_CIE_SRC(dev, pTaddr);
115 pDot11dInfo->CountryIeLen = CoutryIeLen;
116 memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe,CoutryIeLen);
117 pDot11dInfo->State = DOT11D_STATE_LEARNED;
122 DOT11D_GetMaxTxPwrInDbm(
123 struct ieee80211_device *dev,
127 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
128 u8 MaxTxPwrInDbm = 255;
130 if(MAX_CHANNEL_NUMBER < Channel)
132 printk("DOT11D_GetMaxTxPwrInDbm(): Invalid Channel\n");
133 return MaxTxPwrInDbm;
135 if(pDot11dInfo->channel_map[Channel])
137 MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel];
140 return MaxTxPwrInDbm;
146 struct ieee80211_device *dev
149 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
151 switch (pDot11dInfo->State)
153 case DOT11D_STATE_LEARNED:
154 pDot11dInfo->State = DOT11D_STATE_DONE;
157 case DOT11D_STATE_DONE:
158 if( GET_CIE_WATCHDOG(dev) == 0 )
159 { // Reset country IE if previous one is gone.
163 case DOT11D_STATE_NONE:
169 struct ieee80211_device *dev,
173 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
175 if(MAX_CHANNEL_NUMBER < channel)
177 printk("IsLegalChannel(): Invalid Channel\n");
180 if(pDot11dInfo->channel_map[channel] > 0)
186 struct ieee80211_device *dev,
190 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
194 for (i=1; i<= MAX_CHANNEL_NUMBER; i++)
196 if(pDot11dInfo->channel_map[i] > 0)
203 if(MAX_CHANNEL_NUMBER < channel)
205 printk("IsLegalChannel(): Invalid Channel\n");
209 if(pDot11dInfo->channel_map[channel] > 0)
214 EXPORT_SYMBOL(Dot11d_Init);
215 EXPORT_SYMBOL(Dot11d_Reset);
216 EXPORT_SYMBOL(Dot11d_UpdateCountryIe);
217 EXPORT_SYMBOL(DOT11D_GetMaxTxPwrInDbm);
218 EXPORT_SYMBOL(DOT11D_ScanComplete);
219 EXPORT_SYMBOL(IsLegalChannel);
220 EXPORT_SYMBOL(ToLegalChannel);