| 1 | /****************************************************************************** |
| 2 | * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. |
| 3 | * |
| 4 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 5 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 6 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 7 | * more details. |
| 8 | * |
| 9 | * You should have received a copy of the GNU General Public License along with |
| 10 | * this program; if not, write to the Free Software Foundation, Inc., |
| 11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 12 | * |
| 13 | * The full GNU General Public License is included in this distribution in the |
| 14 | * file called LICENSE. |
| 15 | * |
| 16 | * Contact Information: |
| 17 | * wlanfae <wlanfae@realtek.com> |
| 18 | ******************************************************************************/ |
| 19 | #include "dot11d.h" |
| 20 | |
| 21 | struct channel_list { |
| 22 | u8 Channel[32]; |
| 23 | u8 Len; |
| 24 | }; |
| 25 | |
| 26 | static struct channel_list ChannelPlan[] = { |
| 27 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, |
| 28 | 149, 153, 157, 161, 165}, 24}, |
| 29 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, |
| 30 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, |
| 31 | 60, 64}, 21}, |
| 32 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, |
| 33 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, |
| 34 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, |
| 35 | 56, 60, 64}, 22}, |
| 36 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, |
| 37 | 56, 60, 64}, 22}, |
| 38 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, |
| 39 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, |
| 40 | 56, 60, 64}, 22}, |
| 41 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, |
| 42 | 56, 60, 64}, 22}, |
| 43 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}, |
| 44 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, |
| 45 | {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, |
| 46 | 56, 60, 64}, 21} |
| 47 | }; |
| 48 | |
| 49 | void dot11d_init(struct rtllib_device *ieee) |
| 50 | { |
| 51 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee); |
| 52 | pDot11dInfo->bEnabled = false; |
| 53 | |
| 54 | pDot11dInfo->State = DOT11D_STATE_NONE; |
| 55 | pDot11dInfo->CountryIeLen = 0; |
| 56 | memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); |
| 57 | memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); |
| 58 | RESET_CIE_WATCHDOG(ieee); |
| 59 | |
| 60 | } |
| 61 | EXPORT_SYMBOL(dot11d_init); |
| 62 | |
| 63 | void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee) |
| 64 | { |
| 65 | int i, max_chan = 14, min_chan = 1; |
| 66 | |
| 67 | ieee->bGlobalDomain = false; |
| 68 | |
| 69 | if (ChannelPlan[channel_plan].Len != 0) { |
| 70 | memset(GET_DOT11D_INFO(ieee)->channel_map, 0, |
| 71 | sizeof(GET_DOT11D_INFO(ieee)->channel_map)); |
| 72 | for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { |
| 73 | if (ChannelPlan[channel_plan].Channel[i] < min_chan || |
| 74 | ChannelPlan[channel_plan].Channel[i] > max_chan) |
| 75 | break; |
| 76 | GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan |
| 77 | [channel_plan].Channel[i]] = 1; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | switch (channel_plan) { |
| 82 | case COUNTRY_CODE_GLOBAL_DOMAIN: |
| 83 | ieee->bGlobalDomain = true; |
| 84 | for (i = 12; i <= 14; i++) |
| 85 | GET_DOT11D_INFO(ieee)->channel_map[i] = 2; |
| 86 | ieee->IbssStartChnl = 10; |
| 87 | ieee->ibss_maxjoin_chal = 11; |
| 88 | break; |
| 89 | |
| 90 | case COUNTRY_CODE_WORLD_WIDE_13: |
| 91 | for (i = 12; i <= 13; i++) |
| 92 | GET_DOT11D_INFO(ieee)->channel_map[i] = 2; |
| 93 | ieee->IbssStartChnl = 10; |
| 94 | ieee->ibss_maxjoin_chal = 11; |
| 95 | break; |
| 96 | |
| 97 | default: |
| 98 | ieee->IbssStartChnl = 1; |
| 99 | ieee->ibss_maxjoin_chal = 14; |
| 100 | break; |
| 101 | } |
| 102 | } |
| 103 | EXPORT_SYMBOL(Dot11d_Channelmap); |
| 104 | |
| 105 | |
| 106 | void Dot11d_Reset(struct rtllib_device *ieee) |
| 107 | { |
| 108 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee); |
| 109 | u32 i; |
| 110 | |
| 111 | memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); |
| 112 | memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); |
| 113 | for (i = 1; i <= 11; i++) |
| 114 | (pDot11dInfo->channel_map)[i] = 1; |
| 115 | for (i = 12; i <= 14; i++) |
| 116 | (pDot11dInfo->channel_map)[i] = 2; |
| 117 | pDot11dInfo->State = DOT11D_STATE_NONE; |
| 118 | pDot11dInfo->CountryIeLen = 0; |
| 119 | RESET_CIE_WATCHDOG(ieee); |
| 120 | } |
| 121 | |
| 122 | void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr, |
| 123 | u16 CoutryIeLen, u8 *pCoutryIe) |
| 124 | { |
| 125 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); |
| 126 | u8 i, j, NumTriples, MaxChnlNum; |
| 127 | struct chnl_txpow_triple *pTriple; |
| 128 | |
| 129 | memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); |
| 130 | memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); |
| 131 | MaxChnlNum = 0; |
| 132 | NumTriples = (CoutryIeLen - 3) / 3; |
| 133 | pTriple = (struct chnl_txpow_triple *)(pCoutryIe + 3); |
| 134 | for (i = 0; i < NumTriples; i++) { |
| 135 | if (MaxChnlNum >= pTriple->FirstChnl) { |
| 136 | printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n"); |
| 137 | return; |
| 138 | } |
| 139 | if (MAX_CHANNEL_NUMBER < (pTriple->FirstChnl + |
| 140 | pTriple->NumChnls)) { |
| 141 | printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n"); |
| 142 | return; |
| 143 | } |
| 144 | |
| 145 | for (j = 0; j < pTriple->NumChnls; j++) { |
| 146 | pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1; |
| 147 | pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] = |
| 148 | pTriple->MaxTxPowerInDbm; |
| 149 | MaxChnlNum = pTriple->FirstChnl + j; |
| 150 | } |
| 151 | |
| 152 | pTriple = (struct chnl_txpow_triple *)((u8 *)pTriple + 3); |
| 153 | } |
| 154 | |
| 155 | UPDATE_CIE_SRC(dev, pTaddr); |
| 156 | |
| 157 | pDot11dInfo->CountryIeLen = CoutryIeLen; |
| 158 | memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe, CoutryIeLen); |
| 159 | pDot11dInfo->State = DOT11D_STATE_LEARNED; |
| 160 | } |
| 161 | |
| 162 | u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel) |
| 163 | { |
| 164 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); |
| 165 | u8 MaxTxPwrInDbm = 255; |
| 166 | |
| 167 | if (MAX_CHANNEL_NUMBER < Channel) { |
| 168 | printk(KERN_INFO "DOT11D_GetMaxTxPwrInDbm(): Invalid Channel\n"); |
| 169 | return MaxTxPwrInDbm; |
| 170 | } |
| 171 | if (pDot11dInfo->channel_map[Channel]) |
| 172 | MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel]; |
| 173 | |
| 174 | return MaxTxPwrInDbm; |
| 175 | } |
| 176 | |
| 177 | void DOT11D_ScanComplete(struct rtllib_device *dev) |
| 178 | { |
| 179 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); |
| 180 | |
| 181 | switch (pDot11dInfo->State) { |
| 182 | case DOT11D_STATE_LEARNED: |
| 183 | pDot11dInfo->State = DOT11D_STATE_DONE; |
| 184 | break; |
| 185 | case DOT11D_STATE_DONE: |
| 186 | Dot11d_Reset(dev); |
| 187 | break; |
| 188 | case DOT11D_STATE_NONE: |
| 189 | break; |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | int ToLegalChannel(struct rtllib_device *dev, u8 channel) |
| 194 | { |
| 195 | struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev); |
| 196 | u8 default_chn = 0; |
| 197 | u32 i; |
| 198 | |
| 199 | for (i = 1; i <= MAX_CHANNEL_NUMBER; i++) { |
| 200 | if (pDot11dInfo->channel_map[i] > 0) { |
| 201 | default_chn = i; |
| 202 | break; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | if (MAX_CHANNEL_NUMBER < channel) { |
| 207 | printk(KERN_ERR "%s(): Invalid Channel\n", __func__); |
| 208 | return default_chn; |
| 209 | } |
| 210 | |
| 211 | if (pDot11dInfo->channel_map[channel] > 0) |
| 212 | return channel; |
| 213 | |
| 214 | return default_chn; |
| 215 | } |