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_20MHZ_APART 4
33 #define CH_10MHZ_APART 2
34 #define CH_5MHZ_APART 1 /* 2G band channels are 5 Mhz apart */
35 #define CH_MIN_2G_CHANNEL 1
36 #define CH_MAX_2G_CHANNEL 14 /* Max channel in 2G band */
37 #define CH_MIN_5G_CHANNEL 34
38
39 /* bandstate array indices */
40 #define BAND_2G_INDEX 0 /* wlc->bandstate[x] index */
41 #define BAND_5G_INDEX 1 /* wlc->bandstate[x] index */
42
43 /*
44 * max # supported channels. The max channel no is 216, this is that + 1
45 * rounded up to a multiple of NBBY (8). DO NOT MAKE it > 255: channels are
46 * u8's all over
47 */
48 #define MAXCHANNEL 224
49
50 #define WL_CHANSPEC_CHAN_MASK 0x00ff
51 #define WL_CHANSPEC_CHAN_SHIFT 0
52
53 #define WL_CHANSPEC_CTL_SB_MASK 0x0300
54 #define WL_CHANSPEC_CTL_SB_SHIFT 8
55 #define WL_CHANSPEC_CTL_SB_LOWER 0x0100
56 #define WL_CHANSPEC_CTL_SB_UPPER 0x0200
57 #define WL_CHANSPEC_CTL_SB_NONE 0x0300
58
59 #define WL_CHANSPEC_BW_MASK 0x0C00
60 #define WL_CHANSPEC_BW_SHIFT 10
61 #define WL_CHANSPEC_BW_10 0x0400
62 #define WL_CHANSPEC_BW_20 0x0800
63 #define WL_CHANSPEC_BW_40 0x0C00
64 #define WL_CHANSPEC_BW_80 0x2000
65
66 #define WL_CHANSPEC_BAND_MASK 0xf000
67 #define WL_CHANSPEC_BAND_SHIFT 12
68 #define WL_CHANSPEC_BAND_5G 0x1000
69 #define WL_CHANSPEC_BAND_2G 0x2000
70 #define INVCHANSPEC 255
71
72 #define WL_CHAN_VALID_HW (1 << 0) /* valid with current HW */
73 #define WL_CHAN_VALID_SW (1 << 1) /* valid with country sett. */
74 #define WL_CHAN_BAND_5G (1 << 2) /* 5GHz-band channel */
75 #define WL_CHAN_RADAR (1 << 3) /* radar sensitive channel */
76 #define WL_CHAN_INACTIVE (1 << 4) /* inactive due to radar */
77 #define WL_CHAN_PASSIVE (1 << 5) /* channel in passive mode */
78 #define WL_CHAN_RESTRICTED (1 << 6) /* restricted use channel */
79
80 /* values for band specific 40MHz capabilities */
81 #define WLC_N_BW_20ALL 0
82 #define WLC_N_BW_40ALL 1
83 #define WLC_N_BW_20IN2G_40IN5G 2
84
85 /* band types */
86 #define WLC_BAND_AUTO 0 /* auto-select */
87 #define WLC_BAND_5G 1 /* 5 Ghz */
88 #define WLC_BAND_2G 2 /* 2.4 Ghz */
89 #define WLC_BAND_ALL 3 /* all bands */
90
91 #define CHSPEC_CHANNEL(chspec) ((u8)((chspec) & WL_CHANSPEC_CHAN_MASK))
92 #define CHSPEC_BAND(chspec) ((chspec) & WL_CHANSPEC_BAND_MASK)
93
94 #define CHSPEC_CTL_SB(chspec) ((chspec) & WL_CHANSPEC_CTL_SB_MASK)
95 #define CHSPEC_BW(chspec) ((chspec) & WL_CHANSPEC_BW_MASK)
96
97 #define CHSPEC_IS10(chspec) \
98 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
99
100 #define CHSPEC_IS20(chspec) \
101 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
102
103 #define CHSPEC_IS40(chspec) \
104 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
105
106 #define CHSPEC_IS80(chspec) \
107 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_80)
108
109 #define CHSPEC_IS5G(chspec) \
110 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
111
112 #define CHSPEC_IS2G(chspec) \
113 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
114
115 #define CHSPEC_SB_NONE(chspec) \
116 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
117
118 #define CHSPEC_SB_UPPER(chspec) \
119 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
120
121 #define CHSPEC_SB_LOWER(chspec) \
122 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
123
124 #define CHSPEC_CTL_CHAN(chspec) \
125 ((CHSPEC_SB_LOWER(chspec)) ? \
126 (lower_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
127 (upper_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))))
128
129 #define CHSPEC2BAND(chspec) (CHSPEC_IS5G(chspec) ? BRCM_BAND_5G : BRCM_BAND_2G)
130
131 #define CHANSPEC_STR_LEN 8
132
lower_20_sb(int channel)133 static inline int lower_20_sb(int channel)
134 {
135 return channel > CH_10MHZ_APART ? (channel - CH_10MHZ_APART) : 0;
136 }
137
upper_20_sb(int channel)138 static inline int upper_20_sb(int channel)
139 {
140 return (channel < (MAXCHANNEL - CH_10MHZ_APART)) ?
141 channel + CH_10MHZ_APART : 0;
142 }
143
chspec_bandunit(u16 chspec)144 static inline int chspec_bandunit(u16 chspec)
145 {
146 return CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX;
147 }
148
ch20mhz_chspec(int channel)149 static inline u16 ch20mhz_chspec(int channel)
150 {
151 u16 rc = channel <= CH_MAX_2G_CHANNEL ?
152 WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G;
153
154 return (u16)((u16)channel | WL_CHANSPEC_BW_20 |
155 WL_CHANSPEC_CTL_SB_NONE | rc);
156 }
157
next_20mhz_chan(int channel)158 static inline int next_20mhz_chan(int channel)
159 {
160 return channel < (MAXCHANNEL - CH_20MHZ_APART) ?
161 channel + CH_20MHZ_APART : 0;
162 }
163
164 /* defined rate in 500kbps */
165 #define BRCM_MAXRATE 108 /* in 500kbps units */
166 #define BRCM_RATE_1M 2 /* in 500kbps units */
167 #define BRCM_RATE_2M 4 /* in 500kbps units */
168 #define BRCM_RATE_5M5 11 /* in 500kbps units */
169 #define BRCM_RATE_11M 22 /* in 500kbps units */
170 #define BRCM_RATE_6M 12 /* in 500kbps units */
171 #define BRCM_RATE_9M 18 /* in 500kbps units */
172 #define BRCM_RATE_12M 24 /* in 500kbps units */
173 #define BRCM_RATE_18M 36 /* in 500kbps units */
174 #define BRCM_RATE_24M 48 /* in 500kbps units */
175 #define BRCM_RATE_36M 72 /* in 500kbps units */
176 #define BRCM_RATE_48M 96 /* in 500kbps units */
177 #define BRCM_RATE_54M 108 /* in 500kbps units */
178
179 #define BRCM_2G_25MHZ_OFFSET 5 /* 2.4GHz band channel offset */
180
181 #define MCSSET_LEN 16
182
ac_bitmap_tst(u8 bitmap,int prec)183 static inline bool ac_bitmap_tst(u8 bitmap, int prec)
184 {
185 return (bitmap & (1 << (prec))) != 0;
186 }
187
188 /* Enumerate crypto algorithms */
189 #define CRYPTO_ALGO_OFF 0
190 #define CRYPTO_ALGO_WEP1 1
191 #define CRYPTO_ALGO_TKIP 2
192 #define CRYPTO_ALGO_WEP128 3
193 #define CRYPTO_ALGO_AES_CCM 4
194 #define CRYPTO_ALGO_AES_RESERVED1 5
195 #define CRYPTO_ALGO_AES_RESERVED2 6
196 #define CRYPTO_ALGO_NALG 7
197
198 /* wireless security bitvec */
199
200 #define WEP_ENABLED 0x0001
201 #define TKIP_ENABLED 0x0002
202 #define AES_ENABLED 0x0004
203 #define WSEC_SWFLAG 0x0008
204 /* to go into transition mode without setting wep */
205 #define SES_OW_ENABLED 0x0040
206
207 /* WPA authentication mode bitvec */
208 #define WPA_AUTH_DISABLED 0x0000 /* Legacy (i.e., non-WPA) */
209 #define WPA_AUTH_NONE 0x0001 /* none (IBSS) */
210 #define WPA_AUTH_UNSPECIFIED 0x0002 /* over 802.1x */
211 #define WPA_AUTH_PSK 0x0004 /* Pre-shared key */
212 #define WPA_AUTH_RESERVED1 0x0008
213 #define WPA_AUTH_RESERVED2 0x0010
214
215 #define WPA2_AUTH_RESERVED1 0x0020
216 #define WPA2_AUTH_UNSPECIFIED 0x0040 /* over 802.1x */
217 #define WPA2_AUTH_PSK 0x0080 /* Pre-shared key */
218 #define WPA2_AUTH_RESERVED3 0x0200
219 #define WPA2_AUTH_RESERVED4 0x0400
220 #define WPA2_AUTH_RESERVED5 0x0800
221
222 /* pmkid */
223 #define MAXPMKID 16
224
225 #define DOT11_DEFAULT_RTS_LEN 2347
226 #define DOT11_DEFAULT_FRAG_LEN 2346
227
228 #define DOT11_ICV_AES_LEN 8
229 #define DOT11_QOS_LEN 2
230 #define DOT11_IV_MAX_LEN 8
231 #define DOT11_A4_HDR_LEN 30
232
233 #define HT_CAP_RX_STBC_NO 0x0
234 #define HT_CAP_RX_STBC_ONE_STREAM 0x1
235
236 struct pmkid {
237 u8 BSSID[ETH_ALEN];
238 u8 PMKID[WLAN_PMKID_LEN];
239 };
240
241 struct pmkid_list {
242 __le32 npmkid;
243 struct pmkid pmkid[1];
244 };
245
246 struct pmkid_cand {
247 u8 BSSID[ETH_ALEN];
248 u8 preauth;
249 };
250
251 struct pmkid_cand_list {
252 u32 npmkid_cand;
253 struct pmkid_cand pmkid_cand[1];
254 };
255
256 #endif /* _BRCMU_WIFI_H_ */
257