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_MAX_2G_CHANNEL 14 /* Max channel in 2G band */
36 #define BRCM_MAX_2G_CHANNEL CH_MAX_2G_CHANNEL /* legacy define */
37
38 /* bandstate array indices */
39 #define BAND_2G_INDEX 0 /* wlc->bandstate[x] index */
40 #define BAND_5G_INDEX 1 /* wlc->bandstate[x] index */
41
42 /*
43 * max # supported channels. The max channel no is 216, this is that + 1
44 * rounded up to a multiple of NBBY (8). DO NOT MAKE it > 255: channels are
45 * u8's all over
46 */
47 #define MAXCHANNEL 224
48
49 #define WL_CHANSPEC_CHAN_MASK 0x00ff
50 #define WL_CHANSPEC_CHAN_SHIFT 0
51
52 #define WL_CHANSPEC_CTL_SB_MASK 0x0300
53 #define WL_CHANSPEC_CTL_SB_SHIFT 8
54 #define WL_CHANSPEC_CTL_SB_LOWER 0x0100
55 #define WL_CHANSPEC_CTL_SB_UPPER 0x0200
56 #define WL_CHANSPEC_CTL_SB_NONE 0x0300
57
58 #define WL_CHANSPEC_BW_MASK 0x0C00
59 #define WL_CHANSPEC_BW_SHIFT 10
60 #define WL_CHANSPEC_BW_10 0x0400
61 #define WL_CHANSPEC_BW_20 0x0800
62 #define WL_CHANSPEC_BW_40 0x0C00
63
64 #define WL_CHANSPEC_BAND_MASK 0xf000
65 #define WL_CHANSPEC_BAND_SHIFT 12
66 #define WL_CHANSPEC_BAND_5G 0x1000
67 #define WL_CHANSPEC_BAND_2G 0x2000
68 #define INVCHANSPEC 255
69
70 /* used to calculate the chan_freq = chan_factor * 500Mhz + 5 * chan_number */
71 #define WF_CHAN_FACTOR_2_4_G 4814 /* 2.4 GHz band, 2407 MHz */
72 #define WF_CHAN_FACTOR_5_G 10000 /* 5 GHz band, 5000 MHz */
73 #define WF_CHAN_FACTOR_4_G 8000 /* 4.9 GHz band for Japan */
74
75 #define CHSPEC_CHANNEL(chspec) ((u8)((chspec) & WL_CHANSPEC_CHAN_MASK))
76 #define CHSPEC_BAND(chspec) ((chspec) & WL_CHANSPEC_BAND_MASK)
77
78 #define CHSPEC_CTL_SB(chspec) ((chspec) & WL_CHANSPEC_CTL_SB_MASK)
79 #define CHSPEC_BW(chspec) ((chspec) & WL_CHANSPEC_BW_MASK)
80
81 #define CHSPEC_IS10(chspec) \
82 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
83
84 #define CHSPEC_IS20(chspec) \
85 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
86
87 #ifndef CHSPEC_IS40
88 #define CHSPEC_IS40(chspec) \
89 (((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
90 #endif
91
92 #define CHSPEC_IS5G(chspec) \
93 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
94
95 #define CHSPEC_IS2G(chspec) \
96 (((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
97
98 #define CHSPEC_SB_NONE(chspec) \
99 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
100
101 #define CHSPEC_SB_UPPER(chspec) \
102 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
103
104 #define CHSPEC_SB_LOWER(chspec) \
105 (((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
106
107 #define CHSPEC_CTL_CHAN(chspec) \
108 ((CHSPEC_SB_LOWER(chspec)) ? \
109 (lower_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
110 (upper_20_sb(((chspec) & WL_CHANSPEC_CHAN_MASK))))
111
112 #define CHSPEC2BAND(chspec) (CHSPEC_IS5G(chspec) ? BRCM_BAND_5G : BRCM_BAND_2G)
113
114 #define CHANSPEC_STR_LEN 8
115
lower_20_sb(int channel)116 static inline int lower_20_sb(int channel)
117 {
118 return channel > CH_10MHZ_APART ? (channel - CH_10MHZ_APART) : 0;
119 }
120
upper_20_sb(int channel)121 static inline int upper_20_sb(int channel)
122 {
123 return (channel < (MAXCHANNEL - CH_10MHZ_APART)) ?
124 channel + CH_10MHZ_APART : 0;
125 }
126
chspec_bandunit(u16 chspec)127 static inline int chspec_bandunit(u16 chspec)
128 {
129 return CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX;
130 }
131
ch20mhz_chspec(int channel)132 static inline u16 ch20mhz_chspec(int channel)
133 {
134 u16 rc = channel <= CH_MAX_2G_CHANNEL ?
135 WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G;
136
137 return (u16)((u16)channel | WL_CHANSPEC_BW_20 |
138 WL_CHANSPEC_CTL_SB_NONE | rc);
139 }
140
next_20mhz_chan(int channel)141 static inline int next_20mhz_chan(int channel)
142 {
143 return channel < (MAXCHANNEL - CH_20MHZ_APART) ?
144 channel + CH_20MHZ_APART : 0;
145 }
146
147 /* defined rate in 500kbps */
148 #define BRCM_MAXRATE 108 /* in 500kbps units */
149 #define BRCM_RATE_1M 2 /* in 500kbps units */
150 #define BRCM_RATE_2M 4 /* in 500kbps units */
151 #define BRCM_RATE_5M5 11 /* in 500kbps units */
152 #define BRCM_RATE_11M 22 /* in 500kbps units */
153 #define BRCM_RATE_6M 12 /* in 500kbps units */
154 #define BRCM_RATE_9M 18 /* in 500kbps units */
155 #define BRCM_RATE_12M 24 /* in 500kbps units */
156 #define BRCM_RATE_18M 36 /* in 500kbps units */
157 #define BRCM_RATE_24M 48 /* in 500kbps units */
158 #define BRCM_RATE_36M 72 /* in 500kbps units */
159 #define BRCM_RATE_48M 96 /* in 500kbps units */
160 #define BRCM_RATE_54M 108 /* in 500kbps units */
161
162 #define BRCM_2G_25MHZ_OFFSET 5 /* 2.4GHz band channel offset */
163
164 #define MCSSET_LEN 16
165
ac_bitmap_tst(u8 bitmap,int prec)166 static inline bool ac_bitmap_tst(u8 bitmap, int prec)
167 {
168 return (bitmap & (1 << (prec))) != 0;
169 }
170
171 /* Enumerate crypto algorithms */
172 #define CRYPTO_ALGO_OFF 0
173 #define CRYPTO_ALGO_WEP1 1
174 #define CRYPTO_ALGO_TKIP 2
175 #define CRYPTO_ALGO_WEP128 3
176 #define CRYPTO_ALGO_AES_CCM 4
177 #define CRYPTO_ALGO_AES_RESERVED1 5
178 #define CRYPTO_ALGO_AES_RESERVED2 6
179 #define CRYPTO_ALGO_NALG 7
180
181 /* wireless security bitvec */
182
183 #define WEP_ENABLED 0x0001
184 #define TKIP_ENABLED 0x0002
185 #define AES_ENABLED 0x0004
186 #define WSEC_SWFLAG 0x0008
187 /* to go into transition mode without setting wep */
188 #define SES_OW_ENABLED 0x0040
189
190 /* WPA authentication mode bitvec */
191 #define WPA_AUTH_DISABLED 0x0000 /* Legacy (i.e., non-WPA) */
192 #define WPA_AUTH_NONE 0x0001 /* none (IBSS) */
193 #define WPA_AUTH_UNSPECIFIED 0x0002 /* over 802.1x */
194 #define WPA_AUTH_PSK 0x0004 /* Pre-shared key */
195 #define WPA_AUTH_RESERVED1 0x0008
196 #define WPA_AUTH_RESERVED2 0x0010
197
198 #define WPA2_AUTH_RESERVED1 0x0020
199 #define WPA2_AUTH_UNSPECIFIED 0x0040 /* over 802.1x */
200 #define WPA2_AUTH_PSK 0x0080 /* Pre-shared key */
201 #define WPA2_AUTH_RESERVED3 0x0200
202 #define WPA2_AUTH_RESERVED4 0x0400
203 #define WPA2_AUTH_RESERVED5 0x0800
204
205 /* pmkid */
206 #define MAXPMKID 16
207
208 #define DOT11_DEFAULT_RTS_LEN 2347
209 #define DOT11_DEFAULT_FRAG_LEN 2346
210
211 #define DOT11_ICV_AES_LEN 8
212 #define DOT11_QOS_LEN 2
213 #define DOT11_IV_MAX_LEN 8
214 #define DOT11_A4_HDR_LEN 30
215
216 #define HT_CAP_RX_STBC_NO 0x0
217 #define HT_CAP_RX_STBC_ONE_STREAM 0x1
218
219 struct pmkid {
220 u8 BSSID[ETH_ALEN];
221 u8 PMKID[WLAN_PMKID_LEN];
222 };
223
224 struct pmkid_list {
225 __le32 npmkid;
226 struct pmkid pmkid[1];
227 };
228
229 struct pmkid_cand {
230 u8 BSSID[ETH_ALEN];
231 u8 preauth;
232 };
233
234 struct pmkid_cand_list {
235 u32 npmkid_cand;
236 struct pmkid_cand pmkid_cand[1];
237 };
238
239 #endif /* _BRCMU_WIFI_H_ */
240