1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef _BRCMU_WIFI_H_
18 #define _BRCMU_WIFI_H_
19
20 #include <linux/if_ether.h> /* for ETH_ALEN */
21 #include <linux/ieee80211.h> /* for WLAN_PMKID_LEN */
22
23 /*
24 * A chanspec (u16) holds the channel number, band, bandwidth and control
25 * sideband
26 */
27
28 /* channel defines */
29 #define CH_UPPER_SB 0x01
30 #define CH_LOWER_SB 0x02
31 #define CH_EWA_VALID 0x04
32 #define CH_30MHZ_APART 6
33 #define CH_20MHZ_APART 4
34 #define CH_10MHZ_APART 2
35 #define CH_5MHZ_APART 1 /* 2G band channels are 5 Mhz apart */
36 #define CH_MIN_2G_CHANNEL 1
37 #define CH_MAX_2G_CHANNEL 14 /* Max channel in 2G band */
38 #define CH_MIN_5G_CHANNEL 34
39
40 /* bandstate array indices */
41 #define BAND_2G_INDEX 0 /* wlc->bandstate[x] index */
42 #define BAND_5G_INDEX 1 /* wlc->bandstate[x] index */
43
44 /*
45 * max # supported channels. The max channel no is 216, this is that + 1
46 * rounded up to a multiple of NBBY (8). DO NOT MAKE it > 255: channels are
47 * u8's all over
48 */
49 #define MAXCHANNEL 224
50
51 #define WL_CHANSPEC_CHAN_MASK 0x00ff
52 #define WL_CHANSPEC_CHAN_SHIFT 0
53
54 #define WL_CHANSPEC_CTL_SB_MASK 0x0300
55 #define WL_CHANSPEC_CTL_SB_SHIFT 8
56 #define WL_CHANSPEC_CTL_SB_LOWER 0x0100
57 #define WL_CHANSPEC_CTL_SB_UPPER 0x0200
58 #define WL_CHANSPEC_CTL_SB_NONE 0x0300
59
60 #define WL_CHANSPEC_BW_MASK 0x0C00
61 #define WL_CHANSPEC_BW_SHIFT 10
62 #define WL_CHANSPEC_BW_10 0x0400
63 #define WL_CHANSPEC_BW_20 0x0800
64 #define WL_CHANSPEC_BW_40 0x0C00
65 #define WL_CHANSPEC_BW_80 0x2000
66
67 #define WL_CHANSPEC_BAND_MASK 0xf000
68 #define WL_CHANSPEC_BAND_SHIFT 12
69 #define WL_CHANSPEC_BAND_5G 0x1000
70 #define WL_CHANSPEC_BAND_2G 0x2000
71 #define INVCHANSPEC 255
72
73 #define WL_CHAN_VALID_HW (1 << 0) /* valid with current HW */
74 #define WL_CHAN_VALID_SW (1 << 1) /* valid with country sett. */
75 #define WL_CHAN_BAND_5G (1 << 2) /* 5GHz-band channel */
76 #define WL_CHAN_RADAR (1 << 3) /* radar sensitive channel */
77 #define WL_CHAN_INACTIVE (1 << 4) /* inactive due to radar */
78 #define WL_CHAN_PASSIVE (1 << 5) /* channel in passive mode */
79 #define WL_CHAN_RESTRICTED (1 << 6) /* restricted use channel */
80
81 /* values for band specific 40MHz capabilities */
82 #define WLC_N_BW_20ALL 0
83 #define WLC_N_BW_40ALL 1
84 #define WLC_N_BW_20IN2G_40IN5G 2
85
86 #define WLC_BW_20MHZ_BIT BIT(0)
87 #define WLC_BW_40MHZ_BIT BIT(1)
88 #define WLC_BW_80MHZ_BIT BIT(2)
89 #define WLC_BW_160MHZ_BIT BIT(3)
90
91 /* Bandwidth capabilities */
92 #define WLC_BW_CAP_20MHZ (WLC_BW_20MHZ_BIT)
93 #define WLC_BW_CAP_40MHZ (WLC_BW_40MHZ_BIT|WLC_BW_20MHZ_BIT)
94 #define WLC_BW_CAP_80MHZ (WLC_BW_80MHZ_BIT|WLC_BW_40MHZ_BIT| \
95 WLC_BW_20MHZ_BIT)
96 #define WLC_BW_CAP_160MHZ (WLC_BW_160MHZ_BIT|WLC_BW_80MHZ_BIT| \
97 WLC_BW_40MHZ_BIT|WLC_BW_20MHZ_BIT)
98 #define WLC_BW_CAP_UNRESTRICTED 0xFF
99
100 /* band types */
101 #define WLC_BAND_AUTO 0 /* auto-select */
102 #define WLC_BAND_5G 1 /* 5 Ghz */
103 #define WLC_BAND_2G 2 /* 2.4 Ghz */
104 #define WLC_BAND_ALL 3 /* all bands */
105
106 #define CHSPEC_CHANNEL(chspec) ((u8)((chspec) & WL_CHANSPEC_CHAN_MASK))
107 #define CHSPEC_BAND(chspec) ((chspec) & WL_CHANSPEC_BAND_MASK)
108
109 #define CHSPEC_CTL_SB(chspec) ((chspec) & WL_CHANSPEC_CTL_SB_MASK)
110 #define CHSPEC_BW(chspec) ((chspec) & WL_CHANSPEC_BW_MASK)
111
112 #define CHSPEC_IS10(chspec) \
113 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
114
115 #define CHSPEC_IS20(chspec) \
116 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
117
118 #define CHSPEC_IS40(chspec) \
119 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
120
121 #define CHSPEC_IS80(chspec) \
122 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_80)
123
124 #define CHSPEC_IS5G(chspec) \
125 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
126
127 #define CHSPEC_IS2G(chspec) \
128 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
129
130 #define CHSPEC_SB_NONE(chspec) \
131 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
132
133 #define CHSPEC_SB_UPPER(chspec) \
134 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
135
136 #define CHSPEC_SB_LOWER(chspec) \
137 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
138
139 #define CHSPEC_CTL_CHAN(chspec) \
140 ((CHSPEC_SB_LOWER(chspec)) ? \
141 (lower_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
142 (upper_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))))
143
144 #define CHSPEC2BAND(chspec) (CHSPEC_IS5G(chspec) ? BRCM_BAND_5G : BRCM_BAND_2G)
145
146 #define CHANSPEC_STR_LEN 8
147
lower_20_sb(int channel)148 static inline int lower_20_sb(int channel)
149 {
150 return channel > CH_10MHZ_APART ? (channel - CH_10MHZ_APART) : 0;
151 }
152
upper_20_sb(int channel)153 static inline int upper_20_sb(int channel)
154 {
155 return (channel < (MAXCHANNEL - CH_10MHZ_APART)) ?
156 channel + CH_10MHZ_APART : 0;
157 }
158
chspec_bandunit(u16 chspec)159 static inline int chspec_bandunit(u16 chspec)
160 {
161 return CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX;
162 }
163
ch20mhz_chspec(int channel)164 static inline u16 ch20mhz_chspec(int channel)
165 {
166 u16 rc = channel <= CH_MAX_2G_CHANNEL ?
167 WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G;
168
169 return (u16)((u16)channel | WL_CHANSPEC_BW_20 |
170 WL_CHANSPEC_CTL_SB_NONE | rc);
171 }
172
next_20mhz_chan(int channel)173 static inline int next_20mhz_chan(int channel)
174 {
175 return channel < (MAXCHANNEL - CH_20MHZ_APART) ?
176 channel + CH_20MHZ_APART : 0;
177 }
178
179 /* defined rate in 500kbps */
180 #define BRCM_MAXRATE 108 /* in 500kbps units */
181 #define BRCM_RATE_1M 2 /* in 500kbps units */
182 #define BRCM_RATE_2M 4 /* in 500kbps units */
183 #define BRCM_RATE_5M5 11 /* in 500kbps units */
184 #define BRCM_RATE_11M 22 /* in 500kbps units */
185 #define BRCM_RATE_6M 12 /* in 500kbps units */
186 #define BRCM_RATE_9M 18 /* in 500kbps units */
187 #define BRCM_RATE_12M 24 /* in 500kbps units */
188 #define BRCM_RATE_18M 36 /* in 500kbps units */
189 #define BRCM_RATE_24M 48 /* in 500kbps units */
190 #define BRCM_RATE_36M 72 /* in 500kbps units */
191 #define BRCM_RATE_48M 96 /* in 500kbps units */
192 #define BRCM_RATE_54M 108 /* in 500kbps units */
193
194 #define BRCM_2G_25MHZ_OFFSET 5 /* 2.4GHz band channel offset */
195
196 #define MCSSET_LEN 16
197
ac_bitmap_tst(u8 bitmap,int prec)198 static inline bool ac_bitmap_tst(u8 bitmap, int prec)
199 {
200 return (bitmap & (1 << (prec))) != 0;
201 }
202
203 /* Enumerate crypto algorithms */
204 #define CRYPTO_ALGO_OFF 0
205 #define CRYPTO_ALGO_WEP1 1
206 #define CRYPTO_ALGO_TKIP 2
207 #define CRYPTO_ALGO_WEP128 3
208 #define CRYPTO_ALGO_AES_CCM 4
209 #define CRYPTO_ALGO_AES_RESERVED1 5
210 #define CRYPTO_ALGO_AES_RESERVED2 6
211 #define CRYPTO_ALGO_NALG 7
212
213 /* wireless security bitvec */
214
215 #define WEP_ENABLED 0x0001
216 #define TKIP_ENABLED 0x0002
217 #define AES_ENABLED 0x0004
218 #define WSEC_SWFLAG 0x0008
219 /* to go into transition mode without setting wep */
220 #define SES_OW_ENABLED 0x0040
221 /* MFP */
222 #define MFP_CAPABLE 0x0200
223 #define MFP_REQUIRED 0x0400
224
225 /* WPA authentication mode bitvec */
226 #define WPA_AUTH_DISABLED 0x0000 /* Legacy (i.e., non-WPA) */
227 #define WPA_AUTH_NONE 0x0001 /* none (IBSS) */
228 #define WPA_AUTH_UNSPECIFIED 0x0002 /* over 802.1x */
229 #define WPA_AUTH_PSK 0x0004 /* Pre-shared key */
230 #define WPA_AUTH_RESERVED1 0x0008
231 #define WPA_AUTH_RESERVED2 0x0010
232
233 #define WPA2_AUTH_RESERVED1 0x0020
234 #define WPA2_AUTH_UNSPECIFIED 0x0040 /* over 802.1x */
235 #define WPA2_AUTH_PSK 0x0080 /* Pre-shared key */
236 #define WPA2_AUTH_RESERVED3 0x0200
237 #define WPA2_AUTH_RESERVED4 0x0400
238 #define WPA2_AUTH_RESERVED5 0x0800
239 #define WPA2_AUTH_1X_SHA256 0x1000 /* 1X with SHA256 key derivation */
240 #define WPA2_AUTH_PSK_SHA256 0x8000 /* PSK with SHA256 key derivation */
241
242 #define DOT11_DEFAULT_RTS_LEN 2347
243 #define DOT11_DEFAULT_FRAG_LEN 2346
244
245 #define DOT11_ICV_AES_LEN 8
246 #define DOT11_QOS_LEN 2
247 #define DOT11_IV_MAX_LEN 8
248 #define DOT11_A4_HDR_LEN 30
249
250 #define HT_CAP_RX_STBC_NO 0x0
251 #define HT_CAP_RX_STBC_ONE_STREAM 0x1
252
253 #endif /* _BRCMU_WIFI_H_ */
254
