172 lines
5.2 KiB
C
172 lines
5.2 KiB
C
/******************************************************************************
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* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* wlanfae <wlanfae@realtek.com>
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******************************************************************************/
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#include "dot11d.h"
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struct channel_list {
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u8 Channel[32];
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u8 Len;
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};
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static struct channel_list ChannelPlan[] = {
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64,
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149, 153, 157, 161, 165}, 24},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56,
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60, 64}, 21},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
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56, 60, 64}, 22},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
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56, 60, 64}, 22},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
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56, 60, 64}, 22},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
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56, 60, 64}, 22},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
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{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52,
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56, 60, 64}, 21}
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};
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void dot11d_init(struct rtllib_device *ieee)
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{
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struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee);
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pDot11dInfo->bEnabled = false;
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pDot11dInfo->State = DOT11D_STATE_NONE;
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pDot11dInfo->CountryIeLen = 0;
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memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
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memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER + 1);
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RESET_CIE_WATCHDOG(ieee);
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}
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EXPORT_SYMBOL(dot11d_init);
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void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee)
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{
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int i, max_chan = 14, min_chan = 1;
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ieee->bGlobalDomain = false;
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if (ChannelPlan[channel_plan].Len != 0) {
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memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
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sizeof(GET_DOT11D_INFO(ieee)->channel_map));
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for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
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if (ChannelPlan[channel_plan].Channel[i] < min_chan ||
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ChannelPlan[channel_plan].Channel[i] > max_chan)
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break;
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GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan
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[channel_plan].Channel[i]] = 1;
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}
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}
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switch (channel_plan) {
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case COUNTRY_CODE_GLOBAL_DOMAIN:
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ieee->bGlobalDomain = true;
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for (i = 12; i <= 14; i++)
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GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
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ieee->IbssStartChnl = 10;
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ieee->ibss_maxjoin_chal = 11;
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break;
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case COUNTRY_CODE_WORLD_WIDE_13:
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for (i = 12; i <= 13; i++)
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GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
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ieee->IbssStartChnl = 10;
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ieee->ibss_maxjoin_chal = 11;
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break;
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default:
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ieee->IbssStartChnl = 1;
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ieee->ibss_maxjoin_chal = 14;
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break;
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}
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}
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EXPORT_SYMBOL(Dot11d_Channelmap);
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void Dot11d_Reset(struct rtllib_device *ieee)
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{
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struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee);
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u32 i;
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memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
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memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER + 1);
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for (i = 1; i <= 11; i++)
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(pDot11dInfo->channel_map)[i] = 1;
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for (i = 12; i <= 14; i++)
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(pDot11dInfo->channel_map)[i] = 2;
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pDot11dInfo->State = DOT11D_STATE_NONE;
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pDot11dInfo->CountryIeLen = 0;
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RESET_CIE_WATCHDOG(ieee);
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}
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void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
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u16 CoutryIeLen, u8 *pCoutryIe)
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{
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struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
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u8 i, j, NumTriples, MaxChnlNum;
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struct chnl_txpow_triple *pTriple;
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memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
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memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER + 1);
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MaxChnlNum = 0;
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NumTriples = (CoutryIeLen - 3) / 3;
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pTriple = (struct chnl_txpow_triple *)(pCoutryIe + 3);
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for (i = 0; i < NumTriples; i++) {
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if (MaxChnlNum >= pTriple->FirstChnl) {
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netdev_info(dev->dev, "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
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return;
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}
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if (MAX_CHANNEL_NUMBER < (pTriple->FirstChnl +
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pTriple->NumChnls)) {
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netdev_info(dev->dev, "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
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return;
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}
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for (j = 0; j < pTriple->NumChnls; j++) {
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pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
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pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] =
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pTriple->MaxTxPowerInDbm;
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MaxChnlNum = pTriple->FirstChnl + j;
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}
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pTriple = (struct chnl_txpow_triple *)((u8 *)pTriple + 3);
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}
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UPDATE_CIE_SRC(dev, pTaddr);
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pDot11dInfo->CountryIeLen = CoutryIeLen;
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memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe, CoutryIeLen);
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pDot11dInfo->State = DOT11D_STATE_LEARNED;
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}
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void DOT11D_ScanComplete(struct rtllib_device *dev)
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{
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struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
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switch (pDot11dInfo->State) {
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case DOT11D_STATE_LEARNED:
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pDot11dInfo->State = DOT11D_STATE_DONE;
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break;
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case DOT11D_STATE_DONE:
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Dot11d_Reset(dev);
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break;
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case DOT11D_STATE_NONE:
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break;
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}
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}
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