1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /* Copyright(c) 2018-2019  Realtek Corporation
3  */
4 
5 #include "main.h"
6 #include "regd.h"
7 #include "debug.h"
8 #include "phy.h"
9 
10 #define COUNTRY_REGD_ENT(_alpha2, _regd_2g, _regd_5g) \
11 	{.alpha2 = (_alpha2), \
12 	 .txpwr_regd_2g = (_regd_2g), \
13 	 .txpwr_regd_5g = (_regd_5g), \
14 	}
15 
16 #define rtw_dbg_regd_dump(_dev, _msg, _args...)			\
17 do {								\
18 	struct rtw_dev *__d = (_dev);				\
19 	const struct rtw_regd *__r =  &__d->regd;		\
20 	rtw_dbg(__d, RTW_DBG_REGD, _msg				\
21 		"apply alpha2 %c%c, regd {%d, %d}, dfs_region %d\n",\
22 		##_args,					\
23 		__r->regulatory->alpha2[0],			\
24 		__r->regulatory->alpha2[1],			\
25 		__r->regulatory->txpwr_regd_2g,			\
26 		__r->regulatory->txpwr_regd_5g,			\
27 		__r->dfs_region);				\
28 } while (0)
29 
30 /* If country code is not correctly defined in efuse,
31  * use worldwide country code and txpwr regd.
32  */
33 static const struct rtw_regulatory rtw_reg_ww =
34 	COUNTRY_REGD_ENT("00", RTW_REGD_WW, RTW_REGD_WW);
35 
36 static const struct rtw_regulatory rtw_reg_map[] = {
37 	COUNTRY_REGD_ENT("AD", RTW_REGD_ETSI, RTW_REGD_ETSI),
38 	COUNTRY_REGD_ENT("AE", RTW_REGD_ETSI, RTW_REGD_ETSI),
39 	COUNTRY_REGD_ENT("AF", RTW_REGD_ETSI, RTW_REGD_ETSI),
40 	COUNTRY_REGD_ENT("AG", RTW_REGD_FCC, RTW_REGD_FCC),
41 	COUNTRY_REGD_ENT("AI", RTW_REGD_ETSI, RTW_REGD_ETSI),
42 	COUNTRY_REGD_ENT("AL", RTW_REGD_ETSI, RTW_REGD_ETSI),
43 	COUNTRY_REGD_ENT("AM", RTW_REGD_ETSI, RTW_REGD_ETSI),
44 	COUNTRY_REGD_ENT("AN", RTW_REGD_FCC, RTW_REGD_FCC),
45 	COUNTRY_REGD_ENT("AO", RTW_REGD_ETSI, RTW_REGD_ETSI),
46 	COUNTRY_REGD_ENT("AQ", RTW_REGD_ETSI, RTW_REGD_ETSI),
47 	COUNTRY_REGD_ENT("AR", RTW_REGD_MEXICO, RTW_REGD_MEXICO),
48 	COUNTRY_REGD_ENT("AS", RTW_REGD_FCC, RTW_REGD_FCC),
49 	COUNTRY_REGD_ENT("AT", RTW_REGD_ETSI, RTW_REGD_ETSI),
50 	COUNTRY_REGD_ENT("AU", RTW_REGD_ACMA, RTW_REGD_ACMA),
51 	COUNTRY_REGD_ENT("AW", RTW_REGD_FCC, RTW_REGD_FCC),
52 	COUNTRY_REGD_ENT("AZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
53 	COUNTRY_REGD_ENT("BA", RTW_REGD_ETSI, RTW_REGD_ETSI),
54 	COUNTRY_REGD_ENT("BB", RTW_REGD_FCC, RTW_REGD_FCC),
55 	COUNTRY_REGD_ENT("BD", RTW_REGD_ETSI, RTW_REGD_ETSI),
56 	COUNTRY_REGD_ENT("BE", RTW_REGD_ETSI, RTW_REGD_ETSI),
57 	COUNTRY_REGD_ENT("BF", RTW_REGD_ETSI, RTW_REGD_ETSI),
58 	COUNTRY_REGD_ENT("BG", RTW_REGD_ETSI, RTW_REGD_ETSI),
59 	COUNTRY_REGD_ENT("BH", RTW_REGD_ETSI, RTW_REGD_ETSI),
60 	COUNTRY_REGD_ENT("BI", RTW_REGD_ETSI, RTW_REGD_ETSI),
61 	COUNTRY_REGD_ENT("BJ", RTW_REGD_ETSI, RTW_REGD_ETSI),
62 	COUNTRY_REGD_ENT("BM", RTW_REGD_FCC, RTW_REGD_FCC),
63 	COUNTRY_REGD_ENT("BN", RTW_REGD_ETSI, RTW_REGD_ETSI),
64 	COUNTRY_REGD_ENT("BO", RTW_REGD_FCC, RTW_REGD_FCC),
65 	COUNTRY_REGD_ENT("BR", RTW_REGD_FCC, RTW_REGD_FCC),
66 	COUNTRY_REGD_ENT("BS", RTW_REGD_FCC, RTW_REGD_FCC),
67 	COUNTRY_REGD_ENT("BT", RTW_REGD_ETSI, RTW_REGD_ETSI),
68 	COUNTRY_REGD_ENT("BV", RTW_REGD_ETSI, RTW_REGD_ETSI),
69 	COUNTRY_REGD_ENT("BW", RTW_REGD_ETSI, RTW_REGD_ETSI),
70 	COUNTRY_REGD_ENT("BY", RTW_REGD_ETSI, RTW_REGD_ETSI),
71 	COUNTRY_REGD_ENT("BZ", RTW_REGD_FCC, RTW_REGD_FCC),
72 	COUNTRY_REGD_ENT("CA", RTW_REGD_IC, RTW_REGD_IC),
73 	COUNTRY_REGD_ENT("CC", RTW_REGD_ETSI, RTW_REGD_ETSI),
74 	COUNTRY_REGD_ENT("CD", RTW_REGD_ETSI, RTW_REGD_ETSI),
75 	COUNTRY_REGD_ENT("CF", RTW_REGD_ETSI, RTW_REGD_ETSI),
76 	COUNTRY_REGD_ENT("CG", RTW_REGD_ETSI, RTW_REGD_ETSI),
77 	COUNTRY_REGD_ENT("CH", RTW_REGD_ETSI, RTW_REGD_ETSI),
78 	COUNTRY_REGD_ENT("CI", RTW_REGD_ETSI, RTW_REGD_ETSI),
79 	COUNTRY_REGD_ENT("CK", RTW_REGD_ETSI, RTW_REGD_ETSI),
80 	COUNTRY_REGD_ENT("CL", RTW_REGD_FCC, RTW_REGD_FCC),
81 	COUNTRY_REGD_ENT("CM", RTW_REGD_ETSI, RTW_REGD_ETSI),
82 	COUNTRY_REGD_ENT("CN", RTW_REGD_ETSI, RTW_REGD_ETSI),
83 	COUNTRY_REGD_ENT("CO", RTW_REGD_FCC, RTW_REGD_FCC),
84 	COUNTRY_REGD_ENT("CR", RTW_REGD_FCC, RTW_REGD_FCC),
85 	COUNTRY_REGD_ENT("CV", RTW_REGD_ETSI, RTW_REGD_ETSI),
86 	COUNTRY_REGD_ENT("CX", RTW_REGD_ACMA, RTW_REGD_ACMA),
87 	COUNTRY_REGD_ENT("CY", RTW_REGD_ETSI, RTW_REGD_ETSI),
88 	COUNTRY_REGD_ENT("CZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
89 	COUNTRY_REGD_ENT("DE", RTW_REGD_ETSI, RTW_REGD_ETSI),
90 	COUNTRY_REGD_ENT("DJ", RTW_REGD_ETSI, RTW_REGD_ETSI),
91 	COUNTRY_REGD_ENT("DK", RTW_REGD_ETSI, RTW_REGD_ETSI),
92 	COUNTRY_REGD_ENT("DM", RTW_REGD_FCC, RTW_REGD_FCC),
93 	COUNTRY_REGD_ENT("DO", RTW_REGD_FCC, RTW_REGD_FCC),
94 	COUNTRY_REGD_ENT("DZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
95 	COUNTRY_REGD_ENT("EC", RTW_REGD_FCC, RTW_REGD_FCC),
96 	COUNTRY_REGD_ENT("EE", RTW_REGD_ETSI, RTW_REGD_ETSI),
97 	COUNTRY_REGD_ENT("EG", RTW_REGD_ETSI, RTW_REGD_ETSI),
98 	COUNTRY_REGD_ENT("EH", RTW_REGD_ETSI, RTW_REGD_ETSI),
99 	COUNTRY_REGD_ENT("ER", RTW_REGD_ETSI, RTW_REGD_ETSI),
100 	COUNTRY_REGD_ENT("ES", RTW_REGD_ETSI, RTW_REGD_ETSI),
101 	COUNTRY_REGD_ENT("ET", RTW_REGD_ETSI, RTW_REGD_ETSI),
102 	COUNTRY_REGD_ENT("FI", RTW_REGD_ETSI, RTW_REGD_ETSI),
103 	COUNTRY_REGD_ENT("FJ", RTW_REGD_FCC, RTW_REGD_FCC),
104 	COUNTRY_REGD_ENT("FK", RTW_REGD_ETSI, RTW_REGD_ETSI),
105 	COUNTRY_REGD_ENT("FM", RTW_REGD_FCC, RTW_REGD_FCC),
106 	COUNTRY_REGD_ENT("FO", RTW_REGD_ETSI, RTW_REGD_ETSI),
107 	COUNTRY_REGD_ENT("FR", RTW_REGD_ETSI, RTW_REGD_ETSI),
108 	COUNTRY_REGD_ENT("GA", RTW_REGD_ETSI, RTW_REGD_ETSI),
109 	COUNTRY_REGD_ENT("GB", RTW_REGD_ETSI, RTW_REGD_ETSI),
110 	COUNTRY_REGD_ENT("GD", RTW_REGD_FCC, RTW_REGD_FCC),
111 	COUNTRY_REGD_ENT("GE", RTW_REGD_ETSI, RTW_REGD_ETSI),
112 	COUNTRY_REGD_ENT("GF", RTW_REGD_ETSI, RTW_REGD_ETSI),
113 	COUNTRY_REGD_ENT("GG", RTW_REGD_ETSI, RTW_REGD_ETSI),
114 	COUNTRY_REGD_ENT("GH", RTW_REGD_ETSI, RTW_REGD_ETSI),
115 	COUNTRY_REGD_ENT("GI", RTW_REGD_ETSI, RTW_REGD_ETSI),
116 	COUNTRY_REGD_ENT("GL", RTW_REGD_ETSI, RTW_REGD_ETSI),
117 	COUNTRY_REGD_ENT("GM", RTW_REGD_ETSI, RTW_REGD_ETSI),
118 	COUNTRY_REGD_ENT("GN", RTW_REGD_ETSI, RTW_REGD_ETSI),
119 	COUNTRY_REGD_ENT("GP", RTW_REGD_ETSI, RTW_REGD_ETSI),
120 	COUNTRY_REGD_ENT("GQ", RTW_REGD_ETSI, RTW_REGD_ETSI),
121 	COUNTRY_REGD_ENT("GR", RTW_REGD_ETSI, RTW_REGD_ETSI),
122 	COUNTRY_REGD_ENT("GS", RTW_REGD_ETSI, RTW_REGD_ETSI),
123 	COUNTRY_REGD_ENT("GT", RTW_REGD_FCC, RTW_REGD_FCC),
124 	COUNTRY_REGD_ENT("GU", RTW_REGD_FCC, RTW_REGD_FCC),
125 	COUNTRY_REGD_ENT("GW", RTW_REGD_ETSI, RTW_REGD_ETSI),
126 	COUNTRY_REGD_ENT("GY", RTW_REGD_FCC, RTW_REGD_FCC),
127 	COUNTRY_REGD_ENT("HK", RTW_REGD_ETSI, RTW_REGD_ETSI),
128 	COUNTRY_REGD_ENT("HM", RTW_REGD_ACMA, RTW_REGD_ACMA),
129 	COUNTRY_REGD_ENT("HN", RTW_REGD_FCC, RTW_REGD_FCC),
130 	COUNTRY_REGD_ENT("HR", RTW_REGD_ETSI, RTW_REGD_ETSI),
131 	COUNTRY_REGD_ENT("HT", RTW_REGD_FCC, RTW_REGD_FCC),
132 	COUNTRY_REGD_ENT("HU", RTW_REGD_ETSI, RTW_REGD_ETSI),
133 	COUNTRY_REGD_ENT("ID", RTW_REGD_ETSI, RTW_REGD_ETSI),
134 	COUNTRY_REGD_ENT("IE", RTW_REGD_ETSI, RTW_REGD_ETSI),
135 	COUNTRY_REGD_ENT("IL", RTW_REGD_ETSI, RTW_REGD_ETSI),
136 	COUNTRY_REGD_ENT("IM", RTW_REGD_ETSI, RTW_REGD_ETSI),
137 	COUNTRY_REGD_ENT("IN", RTW_REGD_ETSI, RTW_REGD_ETSI),
138 	COUNTRY_REGD_ENT("IO", RTW_REGD_ETSI, RTW_REGD_ETSI),
139 	COUNTRY_REGD_ENT("IQ", RTW_REGD_ETSI, RTW_REGD_ETSI),
140 	COUNTRY_REGD_ENT("IR", RTW_REGD_ETSI, RTW_REGD_ETSI),
141 	COUNTRY_REGD_ENT("IS", RTW_REGD_ETSI, RTW_REGD_ETSI),
142 	COUNTRY_REGD_ENT("IT", RTW_REGD_ETSI, RTW_REGD_ETSI),
143 	COUNTRY_REGD_ENT("JE", RTW_REGD_ETSI, RTW_REGD_ETSI),
144 	COUNTRY_REGD_ENT("JM", RTW_REGD_FCC, RTW_REGD_FCC),
145 	COUNTRY_REGD_ENT("JO", RTW_REGD_ETSI, RTW_REGD_ETSI),
146 	COUNTRY_REGD_ENT("JP", RTW_REGD_MKK, RTW_REGD_MKK),
147 	COUNTRY_REGD_ENT("KE", RTW_REGD_ETSI, RTW_REGD_ETSI),
148 	COUNTRY_REGD_ENT("KG", RTW_REGD_ETSI, RTW_REGD_ETSI),
149 	COUNTRY_REGD_ENT("KH", RTW_REGD_ETSI, RTW_REGD_ETSI),
150 	COUNTRY_REGD_ENT("KI", RTW_REGD_ETSI, RTW_REGD_ETSI),
151 	COUNTRY_REGD_ENT("KM", RTW_REGD_ETSI, RTW_REGD_ETSI),
152 	COUNTRY_REGD_ENT("KN", RTW_REGD_FCC, RTW_REGD_FCC),
153 	COUNTRY_REGD_ENT("KR", RTW_REGD_KCC, RTW_REGD_KCC),
154 	COUNTRY_REGD_ENT("KW", RTW_REGD_ETSI, RTW_REGD_ETSI),
155 	COUNTRY_REGD_ENT("KY", RTW_REGD_FCC, RTW_REGD_FCC),
156 	COUNTRY_REGD_ENT("KZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
157 	COUNTRY_REGD_ENT("LA", RTW_REGD_ETSI, RTW_REGD_ETSI),
158 	COUNTRY_REGD_ENT("LB", RTW_REGD_ETSI, RTW_REGD_ETSI),
159 	COUNTRY_REGD_ENT("LC", RTW_REGD_FCC, RTW_REGD_FCC),
160 	COUNTRY_REGD_ENT("LI", RTW_REGD_ETSI, RTW_REGD_ETSI),
161 	COUNTRY_REGD_ENT("LK", RTW_REGD_ETSI, RTW_REGD_ETSI),
162 	COUNTRY_REGD_ENT("LR", RTW_REGD_ETSI, RTW_REGD_ETSI),
163 	COUNTRY_REGD_ENT("LS", RTW_REGD_ETSI, RTW_REGD_ETSI),
164 	COUNTRY_REGD_ENT("LT", RTW_REGD_ETSI, RTW_REGD_ETSI),
165 	COUNTRY_REGD_ENT("LU", RTW_REGD_ETSI, RTW_REGD_ETSI),
166 	COUNTRY_REGD_ENT("LV", RTW_REGD_ETSI, RTW_REGD_ETSI),
167 	COUNTRY_REGD_ENT("LY", RTW_REGD_ETSI, RTW_REGD_ETSI),
168 	COUNTRY_REGD_ENT("MA", RTW_REGD_ETSI, RTW_REGD_ETSI),
169 	COUNTRY_REGD_ENT("MC", RTW_REGD_ETSI, RTW_REGD_ETSI),
170 	COUNTRY_REGD_ENT("MD", RTW_REGD_ETSI, RTW_REGD_ETSI),
171 	COUNTRY_REGD_ENT("ME", RTW_REGD_ETSI, RTW_REGD_ETSI),
172 	COUNTRY_REGD_ENT("MF", RTW_REGD_FCC, RTW_REGD_FCC),
173 	COUNTRY_REGD_ENT("MG", RTW_REGD_ETSI, RTW_REGD_ETSI),
174 	COUNTRY_REGD_ENT("MH", RTW_REGD_FCC, RTW_REGD_FCC),
175 	COUNTRY_REGD_ENT("MK", RTW_REGD_ETSI, RTW_REGD_ETSI),
176 	COUNTRY_REGD_ENT("ML", RTW_REGD_ETSI, RTW_REGD_ETSI),
177 	COUNTRY_REGD_ENT("MM", RTW_REGD_ETSI, RTW_REGD_ETSI),
178 	COUNTRY_REGD_ENT("MN", RTW_REGD_ETSI, RTW_REGD_ETSI),
179 	COUNTRY_REGD_ENT("MO", RTW_REGD_ETSI, RTW_REGD_ETSI),
180 	COUNTRY_REGD_ENT("MP", RTW_REGD_FCC, RTW_REGD_FCC),
181 	COUNTRY_REGD_ENT("MQ", RTW_REGD_ETSI, RTW_REGD_ETSI),
182 	COUNTRY_REGD_ENT("MR", RTW_REGD_ETSI, RTW_REGD_ETSI),
183 	COUNTRY_REGD_ENT("MS", RTW_REGD_ETSI, RTW_REGD_ETSI),
184 	COUNTRY_REGD_ENT("MT", RTW_REGD_ETSI, RTW_REGD_ETSI),
185 	COUNTRY_REGD_ENT("MU", RTW_REGD_ETSI, RTW_REGD_ETSI),
186 	COUNTRY_REGD_ENT("MV", RTW_REGD_ETSI, RTW_REGD_ETSI),
187 	COUNTRY_REGD_ENT("MW", RTW_REGD_ETSI, RTW_REGD_ETSI),
188 	COUNTRY_REGD_ENT("MX", RTW_REGD_MEXICO, RTW_REGD_MEXICO),
189 	COUNTRY_REGD_ENT("MY", RTW_REGD_ETSI, RTW_REGD_ETSI),
190 	COUNTRY_REGD_ENT("MZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
191 	COUNTRY_REGD_ENT("NA", RTW_REGD_ETSI, RTW_REGD_ETSI),
192 	COUNTRY_REGD_ENT("NC", RTW_REGD_ETSI, RTW_REGD_ETSI),
193 	COUNTRY_REGD_ENT("NE", RTW_REGD_ETSI, RTW_REGD_ETSI),
194 	COUNTRY_REGD_ENT("NF", RTW_REGD_ACMA, RTW_REGD_ACMA),
195 	COUNTRY_REGD_ENT("NG", RTW_REGD_ETSI, RTW_REGD_ETSI),
196 	COUNTRY_REGD_ENT("NI", RTW_REGD_FCC, RTW_REGD_FCC),
197 	COUNTRY_REGD_ENT("NL", RTW_REGD_ETSI, RTW_REGD_ETSI),
198 	COUNTRY_REGD_ENT("NO", RTW_REGD_ETSI, RTW_REGD_ETSI),
199 	COUNTRY_REGD_ENT("NP", RTW_REGD_ETSI, RTW_REGD_ETSI),
200 	COUNTRY_REGD_ENT("NR", RTW_REGD_ETSI, RTW_REGD_ETSI),
201 	COUNTRY_REGD_ENT("NU", RTW_REGD_ACMA, RTW_REGD_ACMA),
202 	COUNTRY_REGD_ENT("NZ", RTW_REGD_ACMA, RTW_REGD_ACMA),
203 	COUNTRY_REGD_ENT("OM", RTW_REGD_ETSI, RTW_REGD_ETSI),
204 	COUNTRY_REGD_ENT("PA", RTW_REGD_FCC, RTW_REGD_FCC),
205 	COUNTRY_REGD_ENT("PE", RTW_REGD_FCC, RTW_REGD_FCC),
206 	COUNTRY_REGD_ENT("PF", RTW_REGD_ETSI, RTW_REGD_ETSI),
207 	COUNTRY_REGD_ENT("PG", RTW_REGD_ETSI, RTW_REGD_ETSI),
208 	COUNTRY_REGD_ENT("PH", RTW_REGD_ETSI, RTW_REGD_ETSI),
209 	COUNTRY_REGD_ENT("PK", RTW_REGD_ETSI, RTW_REGD_ETSI),
210 	COUNTRY_REGD_ENT("PL", RTW_REGD_ETSI, RTW_REGD_ETSI),
211 	COUNTRY_REGD_ENT("PM", RTW_REGD_ETSI, RTW_REGD_ETSI),
212 	COUNTRY_REGD_ENT("PR", RTW_REGD_FCC, RTW_REGD_FCC),
213 	COUNTRY_REGD_ENT("PS", RTW_REGD_ETSI, RTW_REGD_ETSI),
214 	COUNTRY_REGD_ENT("PT", RTW_REGD_ETSI, RTW_REGD_ETSI),
215 	COUNTRY_REGD_ENT("PW", RTW_REGD_FCC, RTW_REGD_FCC),
216 	COUNTRY_REGD_ENT("PY", RTW_REGD_FCC, RTW_REGD_FCC),
217 	COUNTRY_REGD_ENT("QA", RTW_REGD_ETSI, RTW_REGD_ETSI),
218 	COUNTRY_REGD_ENT("RE", RTW_REGD_ETSI, RTW_REGD_ETSI),
219 	COUNTRY_REGD_ENT("RO", RTW_REGD_ETSI, RTW_REGD_ETSI),
220 	COUNTRY_REGD_ENT("RS", RTW_REGD_ETSI, RTW_REGD_ETSI),
221 	COUNTRY_REGD_ENT("RU", RTW_REGD_ETSI, RTW_REGD_ETSI),
222 	COUNTRY_REGD_ENT("RW", RTW_REGD_ETSI, RTW_REGD_ETSI),
223 	COUNTRY_REGD_ENT("SA", RTW_REGD_ETSI, RTW_REGD_ETSI),
224 	COUNTRY_REGD_ENT("SB", RTW_REGD_ETSI, RTW_REGD_ETSI),
225 	COUNTRY_REGD_ENT("SC", RTW_REGD_FCC, RTW_REGD_FCC),
226 	COUNTRY_REGD_ENT("SE", RTW_REGD_ETSI, RTW_REGD_ETSI),
227 	COUNTRY_REGD_ENT("SG", RTW_REGD_ETSI, RTW_REGD_ETSI),
228 	COUNTRY_REGD_ENT("SH", RTW_REGD_ETSI, RTW_REGD_ETSI),
229 	COUNTRY_REGD_ENT("SI", RTW_REGD_ETSI, RTW_REGD_ETSI),
230 	COUNTRY_REGD_ENT("SJ", RTW_REGD_ETSI, RTW_REGD_ETSI),
231 	COUNTRY_REGD_ENT("SK", RTW_REGD_ETSI, RTW_REGD_ETSI),
232 	COUNTRY_REGD_ENT("SL", RTW_REGD_ETSI, RTW_REGD_ETSI),
233 	COUNTRY_REGD_ENT("SM", RTW_REGD_ETSI, RTW_REGD_ETSI),
234 	COUNTRY_REGD_ENT("SN", RTW_REGD_ETSI, RTW_REGD_ETSI),
235 	COUNTRY_REGD_ENT("SO", RTW_REGD_ETSI, RTW_REGD_ETSI),
236 	COUNTRY_REGD_ENT("SR", RTW_REGD_FCC, RTW_REGD_FCC),
237 	COUNTRY_REGD_ENT("ST", RTW_REGD_FCC, RTW_REGD_FCC),
238 	COUNTRY_REGD_ENT("SV", RTW_REGD_FCC, RTW_REGD_FCC),
239 	COUNTRY_REGD_ENT("SX", RTW_REGD_FCC, RTW_REGD_FCC),
240 	COUNTRY_REGD_ENT("SZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
241 	COUNTRY_REGD_ENT("TC", RTW_REGD_ETSI, RTW_REGD_ETSI),
242 	COUNTRY_REGD_ENT("TD", RTW_REGD_ETSI, RTW_REGD_ETSI),
243 	COUNTRY_REGD_ENT("TF", RTW_REGD_ETSI, RTW_REGD_ETSI),
244 	COUNTRY_REGD_ENT("TG", RTW_REGD_ETSI, RTW_REGD_ETSI),
245 	COUNTRY_REGD_ENT("TH", RTW_REGD_ETSI, RTW_REGD_ETSI),
246 	COUNTRY_REGD_ENT("TJ", RTW_REGD_ETSI, RTW_REGD_ETSI),
247 	COUNTRY_REGD_ENT("TK", RTW_REGD_ACMA, RTW_REGD_ACMA),
248 	COUNTRY_REGD_ENT("TM", RTW_REGD_ETSI, RTW_REGD_ETSI),
249 	COUNTRY_REGD_ENT("TN", RTW_REGD_ETSI, RTW_REGD_ETSI),
250 	COUNTRY_REGD_ENT("TO", RTW_REGD_ETSI, RTW_REGD_ETSI),
251 	COUNTRY_REGD_ENT("TR", RTW_REGD_ETSI, RTW_REGD_ETSI),
252 	COUNTRY_REGD_ENT("TT", RTW_REGD_FCC, RTW_REGD_FCC),
253 	COUNTRY_REGD_ENT("TV", RTW_REGD_ETSI, RTW_REGD_WW),
254 	COUNTRY_REGD_ENT("TW", RTW_REGD_FCC, RTW_REGD_FCC),
255 	COUNTRY_REGD_ENT("TZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
256 	COUNTRY_REGD_ENT("UA", RTW_REGD_ETSI, RTW_REGD_ETSI),
257 	COUNTRY_REGD_ENT("UG", RTW_REGD_ETSI, RTW_REGD_ETSI),
258 	COUNTRY_REGD_ENT("US", RTW_REGD_FCC, RTW_REGD_FCC),
259 	COUNTRY_REGD_ENT("UY", RTW_REGD_FCC, RTW_REGD_FCC),
260 	COUNTRY_REGD_ENT("UZ", RTW_REGD_ETSI, RTW_REGD_ETSI),
261 	COUNTRY_REGD_ENT("VA", RTW_REGD_ETSI, RTW_REGD_ETSI),
262 	COUNTRY_REGD_ENT("VC", RTW_REGD_FCC, RTW_REGD_FCC),
263 	COUNTRY_REGD_ENT("VE", RTW_REGD_FCC, RTW_REGD_FCC),
264 	COUNTRY_REGD_ENT("VG", RTW_REGD_FCC, RTW_REGD_FCC),
265 	COUNTRY_REGD_ENT("VI", RTW_REGD_FCC, RTW_REGD_FCC),
266 	COUNTRY_REGD_ENT("VN", RTW_REGD_ETSI, RTW_REGD_ETSI),
267 	COUNTRY_REGD_ENT("VU", RTW_REGD_ETSI, RTW_REGD_ETSI),
268 	COUNTRY_REGD_ENT("WF", RTW_REGD_ETSI, RTW_REGD_ETSI),
269 	COUNTRY_REGD_ENT("WS", RTW_REGD_FCC, RTW_REGD_FCC),
270 	COUNTRY_REGD_ENT("XK", RTW_REGD_ETSI, RTW_REGD_ETSI),
271 	COUNTRY_REGD_ENT("YE", RTW_REGD_ETSI, RTW_REGD_ETSI),
272 	COUNTRY_REGD_ENT("YT", RTW_REGD_ETSI, RTW_REGD_ETSI),
273 	COUNTRY_REGD_ENT("ZA", RTW_REGD_ETSI, RTW_REGD_ETSI),
274 	COUNTRY_REGD_ENT("ZM", RTW_REGD_ETSI, RTW_REGD_ETSI),
275 	COUNTRY_REGD_ENT("ZW", RTW_REGD_ETSI, RTW_REGD_ETSI),
276 };
277 
rtw_regd_apply_hw_cap_flags(struct wiphy * wiphy)278 static void rtw_regd_apply_hw_cap_flags(struct wiphy *wiphy)
279 {
280 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
281 	struct ieee80211_supported_band *sband;
282 	struct ieee80211_channel *ch;
283 	struct rtw_dev *rtwdev = hw->priv;
284 	struct rtw_efuse *efuse = &rtwdev->efuse;
285 	int i;
286 
287 	if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_80))
288 		return;
289 
290 	sband = wiphy->bands[NL80211_BAND_2GHZ];
291 	if (!sband)
292 		goto out_5g;
293 
294 	for (i = 0; i < sband->n_channels; i++) {
295 		ch = &sband->channels[i];
296 		ch->flags |= IEEE80211_CHAN_NO_80MHZ;
297 	}
298 
299 out_5g:
300 	sband = wiphy->bands[NL80211_BAND_5GHZ];
301 	if (!sband)
302 		return;
303 
304 	for (i = 0; i < sband->n_channels; i++) {
305 		ch = &sband->channels[i];
306 		ch->flags |= IEEE80211_CHAN_NO_80MHZ;
307 	}
308 }
309 
rtw_reg_is_ww(const struct rtw_regulatory * reg)310 static bool rtw_reg_is_ww(const struct rtw_regulatory *reg)
311 {
312 	return reg == &rtw_reg_ww;
313 }
314 
rtw_reg_match(const struct rtw_regulatory * reg,const char * alpha2)315 static bool rtw_reg_match(const struct rtw_regulatory *reg, const char *alpha2)
316 {
317 	return memcmp(reg->alpha2, alpha2, 2) == 0;
318 }
319 
rtw_reg_find_by_name(const char * alpha2)320 static const struct rtw_regulatory *rtw_reg_find_by_name(const char *alpha2)
321 {
322 	unsigned int i;
323 
324 	for (i = 0; i < ARRAY_SIZE(rtw_reg_map); i++) {
325 		if (rtw_reg_match(&rtw_reg_map[i], alpha2))
326 			return &rtw_reg_map[i];
327 	}
328 
329 	return &rtw_reg_ww;
330 }
331 
332 static
333 void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request);
334 
335 /* call this before ieee80211_register_hw() */
rtw_regd_init(struct rtw_dev * rtwdev)336 int rtw_regd_init(struct rtw_dev *rtwdev)
337 {
338 	struct wiphy *wiphy = rtwdev->hw->wiphy;
339 	const struct rtw_regulatory *chip_reg;
340 
341 	if (!wiphy)
342 		return -EINVAL;
343 
344 	wiphy->reg_notifier = rtw_regd_notifier;
345 
346 	chip_reg = rtw_reg_find_by_name(rtwdev->efuse.country_code);
347 	if (!rtw_reg_is_ww(chip_reg)) {
348 		rtwdev->regd.state = RTW_REGD_STATE_PROGRAMMED;
349 
350 		/* Set REGULATORY_STRICT_REG before ieee80211_register_hw(),
351 		 * stack will wait for regulatory_hint() and consider it
352 		 * as the superset for our regulatory rule.
353 		 */
354 		wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
355 		wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE;
356 	} else {
357 		rtwdev->regd.state = RTW_REGD_STATE_WORLDWIDE;
358 	}
359 
360 	rtwdev->regd.regulatory = &rtw_reg_ww;
361 	rtwdev->regd.dfs_region = NL80211_DFS_UNSET;
362 	rtw_dbg_regd_dump(rtwdev, "regd init state %d: ", rtwdev->regd.state);
363 
364 	rtw_regd_apply_hw_cap_flags(wiphy);
365 	return 0;
366 }
367 
368 /* call this after ieee80211_register_hw() */
rtw_regd_hint(struct rtw_dev * rtwdev)369 int rtw_regd_hint(struct rtw_dev *rtwdev)
370 {
371 	struct wiphy *wiphy = rtwdev->hw->wiphy;
372 	int ret;
373 
374 	if (!wiphy)
375 		return -EINVAL;
376 
377 	if (rtwdev->regd.state == RTW_REGD_STATE_PROGRAMMED) {
378 		rtw_dbg(rtwdev, RTW_DBG_REGD,
379 			"country domain %c%c is PGed on efuse",
380 			rtwdev->efuse.country_code[0],
381 			rtwdev->efuse.country_code[1]);
382 
383 		ret = regulatory_hint(wiphy, rtwdev->efuse.country_code);
384 		if (ret) {
385 			rtw_warn(rtwdev,
386 				 "failed to hint regulatory: %d\n", ret);
387 			return ret;
388 		}
389 	}
390 
391 	return 0;
392 }
393 
rtw_regd_mgmt_worldwide(struct rtw_dev * rtwdev,struct rtw_regd * next_regd,struct regulatory_request * request)394 static bool rtw_regd_mgmt_worldwide(struct rtw_dev *rtwdev,
395 				    struct rtw_regd *next_regd,
396 				    struct regulatory_request *request)
397 {
398 	struct wiphy *wiphy = rtwdev->hw->wiphy;
399 
400 	next_regd->state = RTW_REGD_STATE_WORLDWIDE;
401 
402 	if (request->initiator == NL80211_REGDOM_SET_BY_USER &&
403 	    !rtw_reg_is_ww(next_regd->regulatory)) {
404 		next_regd->state = RTW_REGD_STATE_SETTING;
405 		wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE;
406 	}
407 
408 	return true;
409 }
410 
rtw_regd_mgmt_programmed(struct rtw_dev * rtwdev,struct rtw_regd * next_regd,struct regulatory_request * request)411 static bool rtw_regd_mgmt_programmed(struct rtw_dev *rtwdev,
412 				     struct rtw_regd *next_regd,
413 				     struct regulatory_request *request)
414 {
415 	if (request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
416 	    rtw_reg_match(next_regd->regulatory, rtwdev->efuse.country_code)) {
417 		next_regd->state = RTW_REGD_STATE_PROGRAMMED;
418 		return true;
419 	}
420 
421 	return false;
422 }
423 
rtw_regd_mgmt_setting(struct rtw_dev * rtwdev,struct rtw_regd * next_regd,struct regulatory_request * request)424 static bool rtw_regd_mgmt_setting(struct rtw_dev *rtwdev,
425 				  struct rtw_regd *next_regd,
426 				  struct regulatory_request *request)
427 {
428 	struct wiphy *wiphy = rtwdev->hw->wiphy;
429 
430 	if (request->initiator != NL80211_REGDOM_SET_BY_USER)
431 		return false;
432 
433 	next_regd->state = RTW_REGD_STATE_SETTING;
434 
435 	if (rtw_reg_is_ww(next_regd->regulatory)) {
436 		next_regd->state = RTW_REGD_STATE_WORLDWIDE;
437 		wiphy->regulatory_flags &= ~REGULATORY_COUNTRY_IE_IGNORE;
438 	}
439 
440 	return true;
441 }
442 
443 static bool (*const rtw_regd_handler[RTW_REGD_STATE_NR])
444 	(struct rtw_dev *, struct rtw_regd *, struct regulatory_request *) = {
445 	[RTW_REGD_STATE_WORLDWIDE] = rtw_regd_mgmt_worldwide,
446 	[RTW_REGD_STATE_PROGRAMMED] = rtw_regd_mgmt_programmed,
447 	[RTW_REGD_STATE_SETTING] = rtw_regd_mgmt_setting,
448 };
449 
rtw_regd_state_hdl(struct rtw_dev * rtwdev,struct rtw_regd * next_regd,struct regulatory_request * request)450 static bool rtw_regd_state_hdl(struct rtw_dev *rtwdev,
451 			       struct rtw_regd *next_regd,
452 			       struct regulatory_request *request)
453 {
454 	next_regd->regulatory = rtw_reg_find_by_name(request->alpha2);
455 	next_regd->dfs_region = request->dfs_region;
456 	return rtw_regd_handler[rtwdev->regd.state](rtwdev, next_regd, request);
457 }
458 
459 static
rtw_regd_notifier(struct wiphy * wiphy,struct regulatory_request * request)460 void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request)
461 {
462 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
463 	struct rtw_dev *rtwdev = hw->priv;
464 	struct rtw_hal *hal = &rtwdev->hal;
465 	struct rtw_regd next_regd = {0};
466 	bool hdl;
467 
468 	hdl = rtw_regd_state_hdl(rtwdev, &next_regd, request);
469 	if (!hdl) {
470 		rtw_dbg(rtwdev, RTW_DBG_REGD,
471 			"regd state %d: ignore request %c%c of initiator %d\n",
472 			rtwdev->regd.state,
473 			request->alpha2[0],
474 			request->alpha2[1],
475 			request->initiator);
476 		return;
477 	}
478 
479 	rtw_dbg(rtwdev, RTW_DBG_REGD, "regd state: %d -> %d\n",
480 		rtwdev->regd.state, next_regd.state);
481 
482 	mutex_lock(&rtwdev->mutex);
483 	rtwdev->regd = next_regd;
484 	rtw_dbg_regd_dump(rtwdev, "get alpha2 %c%c from initiator %d: ",
485 			  request->alpha2[0],
486 			  request->alpha2[1],
487 			  request->initiator);
488 
489 	rtw_phy_adaptivity_set_mode(rtwdev);
490 	rtw_phy_set_tx_power_level(rtwdev, hal->current_channel);
491 	mutex_unlock(&rtwdev->mutex);
492 }
493 
rtw_regd_get(struct rtw_dev * rtwdev)494 u8 rtw_regd_get(struct rtw_dev *rtwdev)
495 {
496 	struct rtw_hal *hal = &rtwdev->hal;
497 	u8 band = hal->current_band_type;
498 
499 	return band == RTW_BAND_2G ?
500 	       rtwdev->regd.regulatory->txpwr_regd_2g :
501 	       rtwdev->regd.regulatory->txpwr_regd_5g;
502 }
503 EXPORT_SYMBOL(rtw_regd_get);
504 
505 struct rtw_regd_alternative_t {
506 	bool set;
507 	u8 alt;
508 };
509 
510 #define DECL_REGD_ALT(_regd, _regd_alt) \
511 	[(_regd)] = {.set = true, .alt = (_regd_alt)}
512 
513 static const struct rtw_regd_alternative_t
514 rtw_regd_alt[RTW_REGD_MAX] = {
515 	DECL_REGD_ALT(RTW_REGD_IC, RTW_REGD_FCC),
516 	DECL_REGD_ALT(RTW_REGD_KCC, RTW_REGD_ETSI),
517 	DECL_REGD_ALT(RTW_REGD_ACMA, RTW_REGD_ETSI),
518 	DECL_REGD_ALT(RTW_REGD_CHILE, RTW_REGD_FCC),
519 	DECL_REGD_ALT(RTW_REGD_UKRAINE, RTW_REGD_ETSI),
520 	DECL_REGD_ALT(RTW_REGD_MEXICO, RTW_REGD_FCC),
521 	DECL_REGD_ALT(RTW_REGD_CN, RTW_REGD_ETSI),
522 };
523 
rtw_regd_has_alt(u8 regd,u8 * regd_alt)524 bool rtw_regd_has_alt(u8 regd, u8 *regd_alt)
525 {
526 	if (!rtw_regd_alt[regd].set)
527 		return false;
528 
529 	*regd_alt = rtw_regd_alt[regd].alt;
530 	return true;
531 }
532