drivers/staging/brcm80211/sys/wlc_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 _WLC_CHANNEL_H_
  18 #define _WLC_CHANNEL_H_
  19
  20 #include <wlc_phy_hal.h>
  21
  22 #define WLC_TXPWR_DB_FACTOR 4   /* conversion for phy txpwr cacluations that use .25 dB units */
  23
  24 struct wlc_info;
  25
  26 /* maxpwr mapping to 5GHz band channels:
  27  * maxpwr[0] - channels [34-48]
  28  * maxpwr[1] - channels [52-60]
  29  * maxpwr[2] - channels [62-64]
  30  * maxpwr[3] - channels [100-140]
  31  * maxpwr[4] - channels [149-165]
  32  */
  33 #define BAND_5G_PWR_LVLS        5       /* 5 power levels for 5G */
  34
  35 /* power level in group of 2.4GHz band channels:
  36  * maxpwr[0] - CCK  channels [1]
  37  * maxpwr[1] - CCK  channels [2-10]
  38  * maxpwr[2] - CCK  channels [11-14]
  39  * maxpwr[3] - OFDM channels [1]
  40  * maxpwr[4] - OFDM channels [2-10]
  41  * maxpwr[5] - OFDM channels [11-14]
  42  */
  43
  44 /* macro to get 2.4 GHz channel group index for tx power */
  45 #define CHANNEL_POWER_IDX_2G_CCK(c) (((c) < 2) ? 0 : (((c) < 11) ? 1 : 2))      /* cck index */
  46 #define CHANNEL_POWER_IDX_2G_OFDM(c) (((c) < 2) ? 3 : (((c) < 11) ? 4 : 5))     /* ofdm index */
  47
  48 /* macro to get 5 GHz channel group index for tx power */
  49 #define CHANNEL_POWER_IDX_5G(c) \
  50         (((c) < 52) ? 0 : (((c) < 62) ? 1 :(((c) < 100) ? 2 : (((c) < 149) ? 3 : 4))))
  51
  52 #define WLC_MAXPWR_TBL_SIZE             6       /* max of BAND_5G_PWR_LVLS and 6 for 2.4 GHz */
  53 #define WLC_MAXPWR_MIMO_TBL_SIZE        14      /* max of BAND_5G_PWR_LVLS and 14 for 2.4 GHz */
  54
  55 /* locale channel and power info. */
  56 typedef struct {
  57         uint32 valid_channels;
  58         uint8 radar_channels;   /* List of radar sensitive channels */
  59         uint8 restricted_channels;      /* List of channels used only if APs are detected */
  60         int8 maxpwr[WLC_MAXPWR_TBL_SIZE];       /* Max tx pwr in qdBm for each sub-band */
  61         int8 pub_maxpwr[BAND_5G_PWR_LVLS];      /* Country IE advertised max tx pwr in dBm
  62                                                  * per sub-band
  63                                                  */
  64         uint8 flags;
  65 } locale_info_t;
  66
  67 /* bits for locale_info flags */
  68 #define WLC_PEAK_CONDUCTED      0x00    /* Peak for locals */
  69 #define WLC_EIRP                0x01    /* Flag for EIRP */
  70 #define WLC_DFS_TPC             0x02    /* Flag for DFS TPC */
  71 #define WLC_NO_OFDM             0x04    /* Flag for No OFDM */
  72 #define WLC_NO_40MHZ            0x08    /* Flag for No MIMO 40MHz */
  73 #define WLC_NO_MIMO             0x10    /* Flag for No MIMO, 20 or 40 MHz */
  74 #define WLC_RADAR_TYPE_EU       0x20    /* Flag for EU */
  75 #define WLC_DFS_FCC             WLC_DFS_TPC     /* Flag for DFS FCC */
  76 #define WLC_DFS_EU              (WLC_DFS_TPC | WLC_RADAR_TYPE_EU)       /* Flag for DFS EU */
  77
  78 #define ISDFS_EU(fl)            (((fl) & WLC_DFS_EU) == WLC_DFS_EU)
  79
  80 /* locale per-channel tx power limits for MIMO frames
  81  * maxpwr arrays are index by channel for 2.4 GHz limits, and
  82  * by sub-band for 5 GHz limits using CHANNEL_POWER_IDX_5G(channel)
  83  */
  84 typedef struct {
  85         int8 maxpwr20[WLC_MAXPWR_MIMO_TBL_SIZE];        /* tx 20 MHz power limits, qdBm units */
  86         int8 maxpwr40[WLC_MAXPWR_MIMO_TBL_SIZE];        /* tx 40 MHz power limits, qdBm units */
  87         uint8 flags;
  88 } locale_mimo_info_t;
  89
  90 extern const chanvec_t chanvec_all_2G;
  91 extern const chanvec_t chanvec_all_5G;
  92
  93 /*
  94  * Country names and abbreviations with locale defined from ISO 3166
  95  */
  96 struct country_info {
  97         const uint8 locale_2G;  /* 2.4G band locale */
  98         const uint8 locale_5G;  /* 5G band locale */
  99         const uint8 locale_mimo_2G;     /* 2.4G mimo info */
 100         const uint8 locale_mimo_5G;     /* 5G mimo info */
 101 };
 102
 103 typedef struct country_info country_info_t;
 104
 105 typedef struct wlc_cm_info wlc_cm_info_t;
 106
 107 extern wlc_cm_info_t *wlc_channel_mgr_attach(struct wlc_info *wlc);
 108 extern void wlc_channel_mgr_detach(wlc_cm_info_t *wlc_cm);
 109
 110 extern int wlc_set_countrycode(wlc_cm_info_t *wlc_cm, const char *ccode);
 111 extern int wlc_set_countrycode_rev(wlc_cm_info_t *wlc_cm,
 112                                    const char *country_abbrev,
 113                                    const char *ccode, int regrev);
 114
 115 extern const char *wlc_channel_country_abbrev(wlc_cm_info_t *wlc_cm);
 116 extern uint8 wlc_channel_locale_flags(wlc_cm_info_t *wlc_cm);
 117 extern uint8 wlc_channel_locale_flags_in_band(wlc_cm_info_t *wlc_cm,
 118                                               uint bandunit);
 119
 120 extern void wlc_quiet_channels_reset(wlc_cm_info_t *wlc_cm);
 121 extern bool wlc_quiet_chanspec(wlc_cm_info_t *wlc_cm, chanspec_t chspec);
 122
 123 #define VALID_CHANNEL20_DB(wlc, val) wlc_valid_channel20_db((wlc)->cmi, val)
 124 #define VALID_CHANNEL20_IN_BAND(wlc, bandunit, val) \
 125         wlc_valid_channel20_in_band((wlc)->cmi, bandunit, val)
 126 #define VALID_CHANNEL20(wlc, val) wlc_valid_channel20((wlc)->cmi, val)
 127 #define VALID_40CHANSPEC_IN_BAND(wlc, bandunit) wlc_valid_40chanspec_in_band((wlc)->cmi, bandunit)
 128
 129 extern bool wlc_valid_chanspec(wlc_cm_info_t *wlc_cm, chanspec_t chspec);
 130 extern bool wlc_valid_chanspec_db(wlc_cm_info_t *wlc_cm, chanspec_t chspec);
 131 extern bool wlc_valid_channel20_db(wlc_cm_info_t *wlc_cm, uint val);
 132 extern bool wlc_valid_channel20_in_band(wlc_cm_info_t *wlc_cm, uint bandunit,
 133                                         uint val);
 134 extern bool wlc_valid_channel20(wlc_cm_info_t *wlc_cm, uint val);
 135 extern bool wlc_valid_40chanspec_in_band(wlc_cm_info_t *wlc_cm, uint bandunit);
 136
 137 extern void wlc_channel_reg_limits(wlc_cm_info_t *wlc_cm,
 138                                    chanspec_t chanspec,
 139                                    struct txpwr_limits *txpwr);
 140 extern void wlc_channel_set_chanspec(wlc_cm_info_t *wlc_cm,
 141                                      chanspec_t chanspec,
 142                                      uint8 local_constraint_qdbm);
 143 extern int wlc_channel_set_txpower_limit(wlc_cm_info_t *wlc_cm,
 144                                          uint8 local_constraint_qdbm);
 145
 146 extern const country_info_t *wlc_country_lookup(struct wlc_info *wlc,
 147                                                 const char *ccode);
 148 extern void wlc_locale_get_channels(const locale_info_t *locale,
 149                                     chanvec_t *valid_channels);
 150 extern const locale_info_t *wlc_get_locale_2g(uint8 locale_idx);
 151 extern const locale_info_t *wlc_get_locale_5g(uint8 locale_idx);
 152 extern bool wlc_japan(struct wlc_info *wlc);
 153
 154 extern uint8 wlc_get_regclass(wlc_cm_info_t *wlc_cm, chanspec_t chanspec);
 155 extern bool wlc_channel_get_chanvec(struct wlc_info *wlc,
 156                                     const char *country_abbrev, int bandtype,
 157                                     chanvec_t *channels);
 158
 159 #endif                          /* _WLC_CHANNEL_H */