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1// SPDX-License-Identifier: ISC
2/*
3 * Copyright (c) 2010 Broadcom Corporation
4 */
5
6#ifndef _BRCMU_WIFI_H_
7#define _BRCMU_WIFI_H_
8
9#include <linux/if_ether.h> /* for ETH_ALEN */
10#include <linux/ieee80211.h> /* for WLAN_PMKID_LEN */
11
12/*
13 * A chanspec (u16) holds the channel number, band, bandwidth and control
14 * sideband
15 */
16
17/* channel defines */
18#define CH_UPPER_SB 0x01
19#define CH_LOWER_SB 0x02
20#define CH_EWA_VALID 0x04
21#define CH_70MHZ_APART 14
22#define CH_50MHZ_APART 10
23#define CH_30MHZ_APART 6
24#define CH_20MHZ_APART 4
25#define CH_10MHZ_APART 2
26#define CH_5MHZ_APART 1 /* 2G band channels are 5 Mhz apart */
27#define CH_MIN_2G_CHANNEL 1
28#define CH_MAX_2G_CHANNEL 14 /* Max channel in 2G band */
29#define CH_MIN_5G_CHANNEL 34
30
31/* bandstate array indices */
32#define BAND_2G_INDEX 0 /* wlc->bandstate[x] index */
33#define BAND_5G_INDEX 1 /* wlc->bandstate[x] index */
34
35/*
36 * max # supported channels. The max channel no is 216, this is that + 1
37 * rounded up to a multiple of NBBY (8). DO NOT MAKE it > 255: channels are
38 * u8's all over
39*/
40#define MAXCHANNEL 224
41
42#define WL_CHANSPEC_CHAN_MASK 0x00ff
43#define WL_CHANSPEC_CHAN_SHIFT 0
44
45#define WL_CHANSPEC_CTL_SB_MASK 0x0300
46#define WL_CHANSPEC_CTL_SB_SHIFT 8
47#define WL_CHANSPEC_CTL_SB_LOWER 0x0100
48#define WL_CHANSPEC_CTL_SB_UPPER 0x0200
49#define WL_CHANSPEC_CTL_SB_NONE 0x0300
50
51#define WL_CHANSPEC_BW_MASK 0x0C00
52#define WL_CHANSPEC_BW_SHIFT 10
53#define WL_CHANSPEC_BW_10 0x0400
54#define WL_CHANSPEC_BW_20 0x0800
55#define WL_CHANSPEC_BW_40 0x0C00
56#define WL_CHANSPEC_BW_80 0x2000
57
58#define WL_CHANSPEC_BAND_MASK 0xf000
59#define WL_CHANSPEC_BAND_SHIFT 12
60#define WL_CHANSPEC_BAND_5G 0x1000
61#define WL_CHANSPEC_BAND_2G 0x2000
62#define INVCHANSPEC 255
63
64#define WL_CHAN_VALID_HW (1 << 0) /* valid with current HW */
65#define WL_CHAN_VALID_SW (1 << 1) /* valid with country sett. */
66#define WL_CHAN_BAND_5G (1 << 2) /* 5GHz-band channel */
67#define WL_CHAN_RADAR (1 << 3) /* radar sensitive channel */
68#define WL_CHAN_INACTIVE (1 << 4) /* inactive due to radar */
69#define WL_CHAN_PASSIVE (1 << 5) /* channel in passive mode */
70#define WL_CHAN_RESTRICTED (1 << 6) /* restricted use channel */
71
72/* values for band specific 40MHz capabilities */
73#define WLC_N_BW_20ALL 0
74#define WLC_N_BW_40ALL 1
75#define WLC_N_BW_20IN2G_40IN5G 2
76
77#define WLC_BW_20MHZ_BIT BIT(0)
78#define WLC_BW_40MHZ_BIT BIT(1)
79#define WLC_BW_80MHZ_BIT BIT(2)
80#define WLC_BW_160MHZ_BIT BIT(3)
81
82/* Bandwidth capabilities */
83#define WLC_BW_CAP_20MHZ (WLC_BW_20MHZ_BIT)
84#define WLC_BW_CAP_40MHZ (WLC_BW_40MHZ_BIT|WLC_BW_20MHZ_BIT)
85#define WLC_BW_CAP_80MHZ (WLC_BW_80MHZ_BIT|WLC_BW_40MHZ_BIT| \
86 WLC_BW_20MHZ_BIT)
87#define WLC_BW_CAP_160MHZ (WLC_BW_160MHZ_BIT|WLC_BW_80MHZ_BIT| \
88 WLC_BW_40MHZ_BIT|WLC_BW_20MHZ_BIT)
89#define WLC_BW_CAP_UNRESTRICTED 0xFF
90
91/* band types */
92#define WLC_BAND_AUTO 0 /* auto-select */
93#define WLC_BAND_5G 1 /* 5 Ghz */
94#define WLC_BAND_2G 2 /* 2.4 Ghz */
95#define WLC_BAND_ALL 3 /* all bands */
96
97#define CHSPEC_CHANNEL(chspec) ((u8)((chspec) & WL_CHANSPEC_CHAN_MASK))
98#define CHSPEC_BAND(chspec) ((chspec) & WL_CHANSPEC_BAND_MASK)
99
100#define CHSPEC_CTL_SB(chspec) ((chspec) & WL_CHANSPEC_CTL_SB_MASK)
101#define CHSPEC_BW(chspec) ((chspec) & WL_CHANSPEC_BW_MASK)
102
103#define CHSPEC_IS10(chspec) \
104 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
105
106#define CHSPEC_IS20(chspec) \
107 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
108
109#define CHSPEC_IS40(chspec) \
110 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
111
112#define CHSPEC_IS80(chspec) \
113 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_80)
114
115#define CHSPEC_IS5G(chspec) \
116 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
117
118#define CHSPEC_IS2G(chspec) \
119 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
120
121#define CHSPEC_SB_NONE(chspec) \
122 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
123
124#define CHSPEC_SB_UPPER(chspec) \
125 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
126
127#define CHSPEC_SB_LOWER(chspec) \
128 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
129
130#define CHSPEC_CTL_CHAN(chspec) \
131 ((CHSPEC_SB_LOWER(chspec)) ? \
132 (lower_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
133 (upper_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))))
134
135#define CHSPEC2BAND(chspec) (CHSPEC_IS5G(chspec) ? BRCM_BAND_5G : BRCM_BAND_2G)
136
137#define CHANSPEC_STR_LEN 8
138
139static inline int lower_20_sb(int channel)
140{
141 return channel > CH_10MHZ_APART ? (channel - CH_10MHZ_APART) : 0;
142}
143
144static inline int upper_20_sb(int channel)
145{
146 return (channel < (MAXCHANNEL - CH_10MHZ_APART)) ?
147 channel + CH_10MHZ_APART : 0;
148}
149
150static inline int chspec_bandunit(u16 chspec)
151{
152 return CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX;
153}
154
155static inline u16 ch20mhz_chspec(int channel)
156{
157 u16 rc = channel <= CH_MAX_2G_CHANNEL ?
158 WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G;
159
160 return (u16)((u16)channel | WL_CHANSPEC_BW_20 |
161 WL_CHANSPEC_CTL_SB_NONE | rc);
162}
163
164static inline int next_20mhz_chan(int channel)
165{
166 return channel < (MAXCHANNEL - CH_20MHZ_APART) ?
167 channel + CH_20MHZ_APART : 0;
168}
169
170/* defined rate in 500kbps */
171#define BRCM_MAXRATE 108 /* in 500kbps units */
172#define BRCM_RATE_1M 2 /* in 500kbps units */
173#define BRCM_RATE_2M 4 /* in 500kbps units */
174#define BRCM_RATE_5M5 11 /* in 500kbps units */
175#define BRCM_RATE_11M 22 /* in 500kbps units */
176#define BRCM_RATE_6M 12 /* in 500kbps units */
177#define BRCM_RATE_9M 18 /* in 500kbps units */
178#define BRCM_RATE_12M 24 /* in 500kbps units */
179#define BRCM_RATE_18M 36 /* in 500kbps units */
180#define BRCM_RATE_24M 48 /* in 500kbps units */
181#define BRCM_RATE_36M 72 /* in 500kbps units */
182#define BRCM_RATE_48M 96 /* in 500kbps units */
183#define BRCM_RATE_54M 108 /* in 500kbps units */
184
185#define BRCM_2G_25MHZ_OFFSET 5 /* 2.4GHz band channel offset */
186
187#define MCSSET_LEN 16
188
189static inline bool ac_bitmap_tst(u8 bitmap, int prec)
190{
191 return (bitmap & (1 << (prec))) != 0;
192}
193
194/* Enumerate crypto algorithms */
195#define CRYPTO_ALGO_OFF 0
196#define CRYPTO_ALGO_WEP1 1
197#define CRYPTO_ALGO_TKIP 2
198#define CRYPTO_ALGO_WEP128 3
199#define CRYPTO_ALGO_AES_CCM 4
200#define CRYPTO_ALGO_AES_RESERVED1 5
201#define CRYPTO_ALGO_AES_RESERVED2 6
202#define CRYPTO_ALGO_NALG 7
203
204/* wireless security bitvec */
205
206#define WEP_ENABLED 0x0001
207#define TKIP_ENABLED 0x0002
208#define AES_ENABLED 0x0004
209#define WSEC_SWFLAG 0x0008
210/* to go into transition mode without setting wep */
211#define SES_OW_ENABLED 0x0040
212/* MFP */
213#define MFP_CAPABLE 0x0200
214#define MFP_REQUIRED 0x0400
215
216/* WPA authentication mode bitvec */
217#define WPA_AUTH_DISABLED 0x0000 /* Legacy (i.e., non-WPA) */
218#define WPA_AUTH_NONE 0x0001 /* none (IBSS) */
219#define WPA_AUTH_UNSPECIFIED 0x0002 /* over 802.1x */
220#define WPA_AUTH_PSK 0x0004 /* Pre-shared key */
221#define WPA_AUTH_RESERVED1 0x0008
222#define WPA_AUTH_RESERVED2 0x0010
223
224#define WPA2_AUTH_RESERVED1 0x0020
225#define WPA2_AUTH_UNSPECIFIED 0x0040 /* over 802.1x */
226#define WPA2_AUTH_PSK 0x0080 /* Pre-shared key */
227#define WPA2_AUTH_RESERVED3 0x0200
228#define WPA2_AUTH_RESERVED4 0x0400
229#define WPA2_AUTH_RESERVED5 0x0800
230#define WPA2_AUTH_1X_SHA256 0x1000 /* 1X with SHA256 key derivation */
231#define WPA2_AUTH_FT 0x4000 /* Fast BSS Transition */
232#define WPA2_AUTH_PSK_SHA256 0x8000 /* PSK with SHA256 key derivation */
233
234#define WPA3_AUTH_SAE_PSK 0x40000 /* SAE with 4-way handshake */
235
236#define DOT11_DEFAULT_RTS_LEN 2347
237#define DOT11_DEFAULT_FRAG_LEN 2346
238
239#define DOT11_ICV_AES_LEN 8
240#define DOT11_QOS_LEN 2
241#define DOT11_IV_MAX_LEN 8
242#define DOT11_A4_HDR_LEN 30
243
244#define HT_CAP_RX_STBC_NO 0x0
245#define HT_CAP_RX_STBC_ONE_STREAM 0x1
246
247#endif /* _BRCMU_WIFI_H_ */