diff options
Diffstat (limited to 'drivers/staging/rtl8192e/dot11d.c')
| -rw-r--r-- | drivers/staging/rtl8192e/dot11d.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/dot11d.c b/drivers/staging/rtl8192e/dot11d.c new file mode 100644 index 000000000..82c11caee --- /dev/null +++ b/drivers/staging/rtl8192e/dot11d.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0 +/****************************************************************************** + * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. + * + * 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; + } +} |