drivers/net/wireless/brcm80211/include/brcmu_wifi.h

   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
 116 static inline int lower_20_sb(int channel)
 117 {
 118         return channel > CH_10MHZ_APART ? (channel - CH_10MHZ_APART) : 0;
 119 }
 120
 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
 127 static inline int chspec_bandunit(u16 chspec)
 128 {
 129         return CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX;
 130 }
 131
 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
 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
 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_ */