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Jules Irenge5af33042019-03-13 14:53:19 +00001// SPDX-License-Identifier: GPL-2.0
Larry Finger94a79942011-08-23 19:00:42 -05002/******************************************************************************
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 *
Larry Finger94a79942011-08-23 19:00:42 -05005 * Contact Information:
6 * wlanfae <wlanfae@realtek.com>
Yamanappagouda Patil839396f2016-11-15 13:54:53 +05307 ******************************************************************************/
Larry Finger94a79942011-08-23 19:00:42 -05008#include "dot11d.h"
9
10struct channel_list {
Himadri Pandya5f98ddc2019-01-01 06:43:19 -080011 u8 channel[32];
Himadri Pandya75752152019-01-12 22:21:49 -080012 u8 len;
Larry Finger94a79942011-08-23 19:00:42 -050013};
14
Himadri Pandya3262af02019-01-12 22:21:48 -080015static struct channel_list channel_array[] = {
Larry Finger94a79942011-08-23 19:00:42 -050016 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64,
17 149, 153, 157, 161, 165}, 24},
18 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
19 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56,
20 60, 64}, 21},
21 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
22 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
23 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
24 56, 60, 64}, 22},
25 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
26 56, 60, 64}, 22},
27 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
28 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
29 56, 60, 64}, 22},
30 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
31 56, 60, 64}, 22},
32 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14},
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, 36, 40, 44, 48, 52,
35 56, 60, 64}, 21}
36};
37
Sean MacLennan976d5342011-11-30 15:18:52 -050038void dot11d_init(struct rtllib_device *ieee)
Larry Finger94a79942011-08-23 19:00:42 -050039{
Himadri Pandyaa180ef32019-02-06 21:04:16 +053040 struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(ieee);
Matthew Casey3a6b70c2014-08-22 06:27:52 -040041
Himadri Pandyaa180ef32019-02-06 21:04:16 +053042 dot11d_info->enabled = false;
Larry Finger94a79942011-08-23 19:00:42 -050043
Himadri Pandyaa180ef32019-02-06 21:04:16 +053044 dot11d_info->state = DOT11D_STATE_NONE;
45 dot11d_info->country_len = 0;
46 memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
47 memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
Larry Finger94a79942011-08-23 19:00:42 -050048 RESET_CIE_WATCHDOG(ieee);
Larry Finger94a79942011-08-23 19:00:42 -050049}
Sean MacLennan976d5342011-11-30 15:18:52 -050050EXPORT_SYMBOL(dot11d_init);
Larry Finger94a79942011-08-23 19:00:42 -050051
Himadri Pandya30c311a2019-02-10 14:13:13 +053052void dot11d_channel_map(u8 channel_plan, struct rtllib_device *ieee)
Larry Finger94a79942011-08-23 19:00:42 -050053{
54 int i, max_chan = 14, min_chan = 1;
55
Himadri Pandyaa180ef32019-02-06 21:04:16 +053056 ieee->global_domain = false;
Larry Finger94a79942011-08-23 19:00:42 -050057
Himadri Pandya75752152019-01-12 22:21:49 -080058 if (channel_array[channel_plan].len != 0) {
Larry Finger94a79942011-08-23 19:00:42 -050059 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
60 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
Himadri Pandya75752152019-01-12 22:21:49 -080061 for (i = 0; i < channel_array[channel_plan].len; i++) {
Himadri Pandya3262af02019-01-12 22:21:48 -080062 if (channel_array[channel_plan].channel[i] < min_chan ||
63 channel_array[channel_plan].channel[i] > max_chan)
Larry Finger94a79942011-08-23 19:00:42 -050064 break;
Himadri Pandya3262af02019-01-12 22:21:48 -080065 GET_DOT11D_INFO(ieee)->channel_map[channel_array
Himadri Pandya5f98ddc2019-01-01 06:43:19 -080066 [channel_plan].channel[i]] = 1;
Larry Finger94a79942011-08-23 19:00:42 -050067 }
68 }
69
70 switch (channel_plan) {
71 case COUNTRY_CODE_GLOBAL_DOMAIN:
Himadri Pandyaa180ef32019-02-06 21:04:16 +053072 ieee->global_domain = true;
Larry Finger94a79942011-08-23 19:00:42 -050073 for (i = 12; i <= 14; i++)
74 GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
Himadri Pandyaa180ef32019-02-06 21:04:16 +053075 ieee->bss_start_channel = 10;
Larry Finger94a79942011-08-23 19:00:42 -050076 ieee->ibss_maxjoin_chal = 11;
77 break;
78
79 case COUNTRY_CODE_WORLD_WIDE_13:
80 for (i = 12; i <= 13; i++)
81 GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
Himadri Pandyaa180ef32019-02-06 21:04:16 +053082 ieee->bss_start_channel = 10;
Larry Finger94a79942011-08-23 19:00:42 -050083 ieee->ibss_maxjoin_chal = 11;
84 break;
85
86 default:
Himadri Pandyaa180ef32019-02-06 21:04:16 +053087 ieee->bss_start_channel = 1;
Larry Finger94a79942011-08-23 19:00:42 -050088 ieee->ibss_maxjoin_chal = 14;
89 break;
90 }
91}
Himadri Pandya30c311a2019-02-10 14:13:13 +053092EXPORT_SYMBOL(dot11d_channel_map);
Larry Finger94a79942011-08-23 19:00:42 -050093
Himadri Pandya8e9f5da2019-02-10 14:13:14 +053094void dot11d_reset(struct rtllib_device *ieee)
Larry Finger94a79942011-08-23 19:00:42 -050095{
Himadri Pandyaa180ef32019-02-06 21:04:16 +053096 struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(ieee);
Larry Finger94a79942011-08-23 19:00:42 -050097 u32 i;
98
Himadri Pandyaa180ef32019-02-06 21:04:16 +053099 memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
100 memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
Larry Finger94a79942011-08-23 19:00:42 -0500101 for (i = 1; i <= 11; i++)
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530102 (dot11d_info->channel_map)[i] = 1;
Larry Finger94a79942011-08-23 19:00:42 -0500103 for (i = 12; i <= 14; i++)
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530104 (dot11d_info->channel_map)[i] = 2;
105 dot11d_info->state = DOT11D_STATE_NONE;
106 dot11d_info->country_len = 0;
Larry Finger94a79942011-08-23 19:00:42 -0500107 RESET_CIE_WATCHDOG(ieee);
108}
109
Himadri Pandya7ed27a02019-02-10 14:13:18 +0530110void dot11d_update_country(struct rtllib_device *dev, u8 *address,
111 u16 country_len, u8 *country)
Larry Finger94a79942011-08-23 19:00:42 -0500112{
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530113 struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(dev);
Himadri Pandya5441ab22019-02-10 14:13:17 +0530114 u8 i, j, number_of_triples, max_channel_number;
115 struct chnl_txpow_triple *triple;
Larry Finger94a79942011-08-23 19:00:42 -0500116
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530117 memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1);
118 memset(dot11d_info->max_tx_power_list, 0xFF, MAX_CHANNEL_NUMBER + 1);
Himadri Pandya5441ab22019-02-10 14:13:17 +0530119 max_channel_number = 0;
Himadri Pandya7ed27a02019-02-10 14:13:18 +0530120 number_of_triples = (country_len - 3) / 3;
121 triple = (struct chnl_txpow_triple *)(country + 3);
Himadri Pandya5441ab22019-02-10 14:13:17 +0530122 for (i = 0; i < number_of_triples; i++) {
123 if (max_channel_number >= triple->first_channel) {
Mihaela Muraruc476b2e2017-10-14 23:23:28 +0300124 netdev_info(dev->dev,
125 "%s: Invalid country IE, skip it......1\n",
126 __func__);
Larry Finger94a79942011-08-23 19:00:42 -0500127 return;
128 }
Himadri Pandya5441ab22019-02-10 14:13:17 +0530129 if (MAX_CHANNEL_NUMBER < (triple->first_channel +
130 triple->num_channels)) {
Mihaela Muraruc476b2e2017-10-14 23:23:28 +0300131 netdev_info(dev->dev,
132 "%s: Invalid country IE, skip it......2\n",
133 __func__);
Larry Finger94a79942011-08-23 19:00:42 -0500134 return;
135 }
136
Himadri Pandya5441ab22019-02-10 14:13:17 +0530137 for (j = 0; j < triple->num_channels; j++) {
138 dot11d_info->channel_map[triple->first_channel + j] = 1;
139 dot11d_info->max_tx_power_list[triple->first_channel + j] =
140 triple->max_tx_power;
141 max_channel_number = triple->first_channel + j;
Larry Finger94a79942011-08-23 19:00:42 -0500142 }
143
Himadri Pandya5441ab22019-02-10 14:13:17 +0530144 triple = (struct chnl_txpow_triple *)((u8 *)triple + 3);
Larry Finger94a79942011-08-23 19:00:42 -0500145 }
146
Himadri Pandya7ed27a02019-02-10 14:13:18 +0530147 UPDATE_CIE_SRC(dev, address);
Larry Finger94a79942011-08-23 19:00:42 -0500148
Himadri Pandya7ed27a02019-02-10 14:13:18 +0530149 dot11d_info->country_len = country_len;
150 memcpy(dot11d_info->country_buffer, country, country_len);
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530151 dot11d_info->state = DOT11D_STATE_LEARNED;
Larry Finger94a79942011-08-23 19:00:42 -0500152}
153
Himadri Pandyac40cac3b2019-02-10 14:13:16 +0530154void dot11d_scan_complete(struct rtllib_device *dev)
Larry Finger94a79942011-08-23 19:00:42 -0500155{
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530156 struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(dev);
Larry Finger94a79942011-08-23 19:00:42 -0500157
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530158 switch (dot11d_info->state) {
Larry Finger94a79942011-08-23 19:00:42 -0500159 case DOT11D_STATE_LEARNED:
Himadri Pandyaa180ef32019-02-06 21:04:16 +0530160 dot11d_info->state = DOT11D_STATE_DONE;
Larry Finger94a79942011-08-23 19:00:42 -0500161 break;
162 case DOT11D_STATE_DONE:
Himadri Pandya8e9f5da2019-02-10 14:13:14 +0530163 dot11d_reset(dev);
Larry Finger94a79942011-08-23 19:00:42 -0500164 break;
165 case DOT11D_STATE_NONE:
166 break;
167 }
168}