drivers/staging/brcm80211/brcmsmac/channel.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 _BRCM_CHANNEL_H_
  18 #define _BRCM_CHANNEL_H_
  19
  20 /* conversion for phy txpwr calculations that use .25 dB units */
  21 #define BRCMS_TXPWR_DB_FACTOR 4
  22
  23
  24 /* maxpwr mapping to 5GHz band channels:
  25  * maxpwr[0] - channels [34-48]
  26  * maxpwr[1] - channels [52-60]
  27  * maxpwr[2] - channels [62-64]
  28  * maxpwr[3] - channels [100-140]
  29  * maxpwr[4] - channels [149-165]
  30  */
  31 #define BAND_5G_PWR_LVLS        5       /* 5 power levels for 5G */
  32
  33 /* power level in group of 2.4GHz band channels:
  34  * maxpwr[0] - CCK  channels [1]
  35  * maxpwr[1] - CCK  channels [2-10]
  36  * maxpwr[2] - CCK  channels [11-14]
  37  * maxpwr[3] - OFDM channels [1]
  38  * maxpwr[4] - OFDM channels [2-10]
  39  * maxpwr[5] - OFDM channels [11-14]
  40  */
  41
  42 /* macro to get 2.4 GHz channel group index for tx power */
  43 #define CHANNEL_POWER_IDX_2G_CCK(c) (((c) < 2) ? 0 : (((c) < 11) ? 1 : 2))      /* cck index */
  44 #define CHANNEL_POWER_IDX_2G_OFDM(c) (((c) < 2) ? 3 : (((c) < 11) ? 4 : 5))     /* ofdm index */
  45
  46 /* macro to get 5 GHz channel group index for tx power */
  47 #define CHANNEL_POWER_IDX_5G(c) \
  48         (((c) < 52) ? 0 : (((c) < 62) ? 1 : (((c) < 100) ? 2 : (((c) < 149) ? 3 : 4))))
  49
  50 /* max of BAND_5G_PWR_LVLS and 6 for 2.4 GHz */
  51 #define BRCMS_MAXPWR_TBL_SIZE           6
  52 /* max of BAND_5G_PWR_LVLS and 14 for 2.4 GHz */
  53 #define BRCMS_MAXPWR_MIMO_TBL_SIZE      14
  54
  55 #define NBANDS(wlc) ((wlc)->pub->_nbands)
  56 #define NBANDS_PUB(pub) ((pub)->_nbands)
  57 #define NBANDS_HW(hw) ((hw)->_nbands)
  58
  59 #define IS_SINGLEBAND_5G(device)        0
  60
  61 /* locale channel and power info. */
  62 struct locale_info {
  63         u32 valid_channels;
  64         /* List of radar sensitive channels */
  65         u8 radar_channels;
  66         /* List of channels used only if APs are detected */
  67         u8 restricted_channels;
  68         /* Max tx pwr in qdBm for each sub-band */
  69         s8 maxpwr[BRCMS_MAXPWR_TBL_SIZE];
  70         s8 pub_maxpwr[BAND_5G_PWR_LVLS];        /* Country IE advertised max tx pwr in dBm
  71                                                  * per sub-band
  72                                                  */
  73         u8 flags;
  74 };
  75
  76 /* bits for locale_info flags */
  77 #define BRCMS_PEAK_CONDUCTED    0x00    /* Peak for locals */
  78 #define BRCMS_EIRP              0x01    /* Flag for EIRP */
  79 #define BRCMS_DFS_TPC           0x02    /* Flag for DFS TPC */
  80 #define BRCMS_NO_OFDM           0x04    /* Flag for No OFDM */
  81 #define BRCMS_NO_40MHZ          0x08    /* Flag for No MIMO 40MHz */
  82 #define BRCMS_NO_MIMO           0x10    /* Flag for No MIMO, 20 or 40 MHz */
  83 #define BRCMS_RADAR_TYPE_EU       0x20  /* Flag for EU */
  84 #define BRCMS_DFS_FCC             BRCMS_DFS_TPC /* Flag for DFS FCC */
  85 #define BRCMS_DFS_EU (BRCMS_DFS_TPC | BRCMS_RADAR_TYPE_EU) /* Flag for DFS EU */
  86
  87 #define ISDFS_EU(fl)            (((fl) & BRCMS_DFS_EU) == BRCMS_DFS_EU)
  88
  89 /* locale per-channel tx power limits for MIMO frames
  90  * maxpwr arrays are index by channel for 2.4 GHz limits, and
  91  * by sub-band for 5 GHz limits using CHANNEL_POWER_IDX_5G(channel)
  92  */
  93 struct locale_mimo_info {
  94         /* tx 20 MHz power limits, qdBm units */
  95         s8 maxpwr20[BRCMS_MAXPWR_MIMO_TBL_SIZE];
  96         /* tx 40 MHz power limits, qdBm units */
  97         s8 maxpwr40[BRCMS_MAXPWR_MIMO_TBL_SIZE];
  98         u8 flags;
  99 };
 100
 101 extern const chanvec_t chanvec_all_2G;
 102 extern const chanvec_t chanvec_all_5G;
 103
 104 /*
 105  * Country names and abbreviations with locale defined from ISO 3166
 106  */
 107 struct country_info {
 108         const u8 locale_2G;     /* 2.4G band locale */
 109         const u8 locale_5G;     /* 5G band locale */
 110         const u8 locale_mimo_2G;        /* 2.4G mimo info */
 111         const u8 locale_mimo_5G;        /* 5G mimo info */
 112 };
 113
 114 extern struct brcms_cm_info *
 115 brcms_c_channel_mgr_attach(struct brcms_c_info *wlc);
 116
 117 extern void brcms_c_channel_mgr_detach(struct brcms_cm_info *wlc_cm);
 118
 119 extern u8 brcms_c_channel_locale_flags_in_band(struct brcms_cm_info *wlc_cm,
 120                                            uint bandunit);
 121
 122 extern bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm,
 123                                       chanspec_t chspec);
 124
 125 extern void brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm,
 126                                    chanspec_t chanspec,
 127                                    struct txpwr_limits *txpwr);
 128 extern void brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm,
 129                                      chanspec_t chanspec,
 130                                      u8 local_constraint_qdbm);
 131
 132 #endif                          /* _WLC_CHANNEL_H */