/****************************************************************************** * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * * Contact Information: * wlanfae ******************************************************************************/ #include "dot11d.h" struct channel_list { u8 Channel[32]; u8 Len; }; static struct channel_list ChannelPlan[] = { {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21} }; void dot11d_init(struct rtllib_device *ieee) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee); pDot11dInfo->bEnabled = false; pDot11dInfo->State = DOT11D_STATE_NONE; pDot11dInfo->CountryIeLen = 0; memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); RESET_CIE_WATCHDOG(ieee); } EXPORT_SYMBOL(dot11d_init); void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee) { int i, max_chan = 14, min_chan = 1; ieee->bGlobalDomain = false; if (ChannelPlan[channel_plan].Len != 0) { memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map)); for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) break; GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan [channel_plan].Channel[i]] = 1; } } switch (channel_plan) { case COUNTRY_CODE_GLOBAL_DOMAIN: ieee->bGlobalDomain = true; for (i = 12; i <= 14; i++) GET_DOT11D_INFO(ieee)->channel_map[i] = 2; ieee->IbssStartChnl = 10; ieee->ibss_maxjoin_chal = 11; break; case COUNTRY_CODE_WORLD_WIDE_13: for (i = 12; i <= 13; i++) GET_DOT11D_INFO(ieee)->channel_map[i] = 2; ieee->IbssStartChnl = 10; ieee->ibss_maxjoin_chal = 11; break; default: ieee->IbssStartChnl = 1; ieee->ibss_maxjoin_chal = 14; break; } } EXPORT_SYMBOL(Dot11d_Channelmap); void Dot11d_Reset(struct rtllib_device *ieee) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee); u32 i; memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); for (i = 1; i <= 11; i++) (pDot11dInfo->channel_map)[i] = 1; for (i = 12; i <= 14; i++) (pDot11dInfo->channel_map)[i] = 2; pDot11dInfo->State = DOT11D_STATE_NONE; pDot11dInfo->CountryIeLen = 0; RESET_CIE_WATCHDOG(ieee); } void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr, u16 CoutryIeLen, u8 *pCoutryIe) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); u8 i, j, NumTriples, MaxChnlNum; struct chnl_txpow_triple *pTriple; memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); MaxChnlNum = 0; NumTriples = (CoutryIeLen - 3) / 3; pTriple = (struct chnl_txpow_triple *)(pCoutryIe + 3); for (i = 0; i < NumTriples; i++) { if (MaxChnlNum >= pTriple->FirstChnl) { printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid" " country IE, skip it........1\n"); return; } if (MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + pTriple->NumChnls)) { printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid " "country IE, skip it........2\n"); return; } for (j = 0 ; j < pTriple->NumChnls; j++) { pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1; pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = pTriple->MaxTxPowerInDbm; MaxChnlNum = pTriple->FirstChnl + j; } pTriple = (struct chnl_txpow_triple *)((u8*)pTriple + 3); } UPDATE_CIE_SRC(dev, pTaddr); pDot11dInfo->CountryIeLen = CoutryIeLen; memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe, CoutryIeLen); pDot11dInfo->State = DOT11D_STATE_LEARNED; } u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); u8 MaxTxPwrInDbm = 255; if (MAX_CHANNEL_NUMBER < Channel) { printk(KERN_INFO "DOT11D_GetMaxTxPwrInDbm(): Invalid " "Channel\n"); return MaxTxPwrInDbm; } if (pDot11dInfo->channel_map[Channel]) MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel]; return MaxTxPwrInDbm; } void DOT11D_ScanComplete(struct rtllib_device *dev) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); switch (pDot11dInfo->State) { case DOT11D_STATE_LEARNED: pDot11dInfo->State = DOT11D_STATE_DONE; break; case DOT11D_STATE_DONE: Dot11d_Reset(dev); break; case DOT11D_STATE_NONE: break; } } int ToLegalChannel(struct rtllib_device *dev, u8 channel) { struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); u8 default_chn = 0; u32 i; for (i = 1; i <= MAX_CHANNEL_NUMBER; i++) { if (pDot11dInfo->channel_map[i] > 0) { default_chn = i; break; } } if (MAX_CHANNEL_NUMBER < channel) { printk(KERN_ERR "%s(): Invalid Channel\n", __func__); return default_chn; } if (pDot11dInfo->channel_map[channel] > 0) return channel; return default_chn; }