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);
38 // Clear old channel map
39 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
40 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
41 // Set new channel map
42 for (i=1; i<=11; i++) {
43 (pDot11dInfo->channel_map)[i] = 1;
45 for (i=12; i<=14; i++) {
46 (pDot11dInfo->channel_map)[i] = 2;
49 pDot11dInfo->State = DOT11D_STATE_NONE;
50 pDot11dInfo->CountryIeLen = 0;
51 RESET_CIE_WATCHDOG(ieee);
53 //printk("Dot11d_Reset()\n");
58 // Update country IE from Beacon or Probe Resopnse
59 // and configure PHY for operation in the regulatory domain.
62 // Configure Tx power.
65 // 1. IS_DOT11D_ENABLE() is TRUE.
66 // 2. Input IE is an valid one.
69 Dot11d_UpdateCountryIe(
70 struct ieee80211_device *dev,
76 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
77 u8 i, j, NumTriples, MaxChnlNum;
78 PCHNL_TXPOWER_TRIPLE pTriple;
80 memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
81 memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
83 NumTriples = (CoutryIeLen - 3) / 3; // skip 3-byte country string.
84 pTriple = (PCHNL_TXPOWER_TRIPLE)(pCoutryIe + 3);
85 for(i = 0; i < NumTriples; i++)
87 if(MaxChnlNum >= pTriple->FirstChnl)
88 { // It is not in a monotonically increasing order, so stop processing.
89 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
92 if(MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + pTriple->NumChnls))
93 { // It is not a valid set of channel id, so stop processing.
94 printk("Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
98 for(j = 0 ; j < pTriple->NumChnls; j++)
100 pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
101 pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = pTriple->MaxTxPowerInDbm;
102 MaxChnlNum = pTriple->FirstChnl + j;
105 pTriple = (PCHNL_TXPOWER_TRIPLE)((u8*)pTriple + 3);
108 //printk("Dot11d_UpdateCountryIe(): Channel List:\n");
109 printk("Channel List:");
110 for(i=1; i<= MAX_CHANNEL_NUMBER; i++)
111 if(pDot11dInfo->channel_map[i] > 0)
116 UPDATE_CIE_SRC(dev, pTaddr);
118 pDot11dInfo->CountryIeLen = CoutryIeLen;
119 memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe,CoutryIeLen);
120 pDot11dInfo->State = DOT11D_STATE_LEARNED;
125 DOT11D_GetMaxTxPwrInDbm(
126 struct ieee80211_device *dev,
130 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
131 u8 MaxTxPwrInDbm = 255;
133 if(MAX_CHANNEL_NUMBER < Channel)
135 printk("DOT11D_GetMaxTxPwrInDbm(): Invalid Channel\n");
136 return MaxTxPwrInDbm;
138 if(pDot11dInfo->channel_map[Channel])
140 MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel];
143 return MaxTxPwrInDbm;
149 struct ieee80211_device * dev
152 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
154 switch(pDot11dInfo->State)
156 case DOT11D_STATE_LEARNED:
157 pDot11dInfo->State = DOT11D_STATE_DONE;
160 case DOT11D_STATE_DONE:
161 if( GET_CIE_WATCHDOG(dev) == 0 )
162 { // Reset country IE if previous one is gone.
166 case DOT11D_STATE_NONE:
172 struct ieee80211_device * dev,
176 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
178 if(MAX_CHANNEL_NUMBER < channel)
180 printk("IsLegalChannel(): Invalid Channel\n");
183 if(pDot11dInfo->channel_map[channel] > 0)
189 struct ieee80211_device * dev,
193 PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(dev);
197 for (i=1; i<= MAX_CHANNEL_NUMBER; i++)
199 if(pDot11dInfo->channel_map[i] > 0)
206 if(MAX_CHANNEL_NUMBER < channel)
208 printk("IsLegalChannel(): Invalid Channel\n");
212 if(pDot11dInfo->channel_map[channel] > 0)