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/******************************************************************************
* 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 <wlanfae@realtek.com>
******************************************************************************/
#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;
}
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