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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.
*
* 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 channel_array[] = {
{{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 *dot11d_info = GET_DOT11D_INFO(ieee);
dot11d_info->enabled = false;
dot11d_info->state = DOT11D_STATE_NONE;
dot11d_info->country_len = 0;
memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
RESET_CIE_WATCHDOG(ieee);
}
EXPORT_SYMBOL(dot11d_init);
void dot11d_channel_map(u8 channel_plan, struct rtllib_device *ieee)
{
int i, max_chan = 14, min_chan = 1;
ieee->global_domain = false;
if (channel_array[channel_plan].len != 0) {
memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
sizeof(GET_DOT11D_INFO(ieee)->channel_map));
for (i = 0; i < channel_array[channel_plan].len; i++) {
if (channel_array[channel_plan].channel[i] < min_chan ||
channel_array[channel_plan].channel[i] > max_chan)
break;
GET_DOT11D_INFO(ieee)->channel_map[channel_array
[channel_plan].channel[i]] = 1;
}
}
switch (channel_plan) {
case COUNTRY_CODE_GLOBAL_DOMAIN:
ieee->global_domain = true;
for (i = 12; i <= 14; i++)
GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
ieee->bss_start_channel = 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->bss_start_channel = 10;
ieee->ibss_maxjoin_chal = 11;
break;
default:
ieee->bss_start_channel = 1;
ieee->ibss_maxjoin_chal = 14;
break;
}
}
EXPORT_SYMBOL(dot11d_channel_map);
void dot11d_reset(struct rtllib_device *ieee)
{
struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(ieee);
u32 i;
memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
for (i = 1; i <= 11; i++)
(dot11d_info->channel_map)[i] = 1;
for (i = 12; i <= 14; i++)
(dot11d_info->channel_map)[i] = 2;
dot11d_info->state = DOT11D_STATE_NONE;
dot11d_info->country_len = 0;
RESET_CIE_WATCHDOG(ieee);
}
void dot11d_update_country(struct rtllib_device *dev, u8 *address,
u16 country_len, u8 *country)
{
struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(dev);
u8 i, j, number_of_triples, max_channel_number;
struct chnl_txpow_triple *triple;
memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
max_channel_number = 0;
number_of_triples = (country_len - 3) / 3;
triple = (struct chnl_txpow_triple *)(country + 3);
for (i = 0; i < number_of_triples; i++) {
if (max_channel_number >= triple->first_channel) {
netdev_info(dev->dev,
"%s: Invalid country IE, skip it......1\n",
__func__);
return;
}
if (MAX_CHANNEL_NUMBER < (triple->first_channel +
triple->num_channels)) {
netdev_info(dev->dev,
"%s: Invalid country IE, skip it......2\n",
__func__);
return;
}
for (j = 0; j < triple->num_channels; j++) {
dot11d_info->channel_map[triple->first_channel + j] = 1;
dot11d_info->max_tx_power_list[triple->first_channel + j] =
triple->max_tx_power;
max_channel_number = triple->first_channel + j;
}
triple = (struct chnl_txpow_triple *)((u8 *)triple + 3);
}
UPDATE_CIE_SRC(dev, address);
dot11d_info->country_len = country_len;
memcpy(dot11d_info->country_buffer, country, country_len);
dot11d_info->state = DOT11D_STATE_LEARNED;
}
void dot11d_scan_complete(struct rtllib_device *dev)
{
struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(dev);
switch (dot11d_info->state) {
case DOT11D_STATE_LEARNED:
dot11d_info->state = DOT11D_STATE_DONE;
break;
case DOT11D_STATE_DONE:
dot11d_reset(dev);
break;
case DOT11D_STATE_NONE:
break;
}
}
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