drivers/staging/brcm80211/brcmsmac/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 #define WLC_TXPWR_DB_FACTOR 4   /* conversion for phy txpwr cacluations that use .25 dB units */
  21
  22 struct wlc_info;
  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 #define WLC_MAXPWR_TBL_SIZE             6       /* max of BAND_5G_PWR_LVLS and 6 for 2.4 GHz */
  51 #define WLC_MAXPWR_MIMO_TBL_SIZE        14      /* max of BAND_5G_PWR_LVLS and 14 for 2.4 GHz */
  52
  53 /* locale channel and power info. */
  54 typedef struct {
  55         u32 valid_channels;
  56         u8 radar_channels;      /* List of radar sensitive channels */
  57         u8 restricted_channels; /* List of channels used only if APs are detected */
  58         s8 maxpwr[WLC_MAXPWR_TBL_SIZE]; /* Max tx pwr in qdBm for each sub-band */
  59         s8 pub_maxpwr[BAND_5G_PWR_LVLS];        /* Country IE advertised max tx pwr in dBm
  60                                                  * per sub-band
  61                                                  */
  62         u8 flags;
  63 } locale_info_t;
  64
  65 /* bits for locale_info flags */
  66 #define WLC_PEAK_CONDUCTED      0x00    /* Peak for locals */
  67 #define WLC_EIRP                0x01    /* Flag for EIRP */
  68 #define WLC_DFS_TPC             0x02    /* Flag for DFS TPC */
  69 #define WLC_NO_OFDM             0x04    /* Flag for No OFDM */
  70 #define WLC_NO_40MHZ            0x08    /* Flag for No MIMO 40MHz */
  71 #define WLC_NO_MIMO             0x10    /* Flag for No MIMO, 20 or 40 MHz */
  72 #define WLC_RADAR_TYPE_EU       0x20    /* Flag for EU */
  73 #define WLC_DFS_FCC             WLC_DFS_TPC     /* Flag for DFS FCC */
  74 #define WLC_DFS_EU              (WLC_DFS_TPC | WLC_RADAR_TYPE_EU)       /* Flag for DFS EU */
  75
  76 #define ISDFS_EU(fl)            (((fl) & WLC_DFS_EU) == WLC_DFS_EU)
  77
  78 /* locale per-channel tx power limits for MIMO frames
  79  * maxpwr arrays are index by channel for 2.4 GHz limits, and
  80  * by sub-band for 5 GHz limits using CHANNEL_POWER_IDX_5G(channel)
  81  */
  82 typedef struct {
  83         s8 maxpwr20[WLC_MAXPWR_MIMO_TBL_SIZE];  /* tx 20 MHz power limits, qdBm units */
  84         s8 maxpwr40[WLC_MAXPWR_MIMO_TBL_SIZE];  /* tx 40 MHz power limits, qdBm units */
  85         u8 flags;
  86 } locale_mimo_info_t;
  87
  88 extern const chanvec_t chanvec_all_2G;
  89 extern const chanvec_t chanvec_all_5G;
  90
  91 /*
  92  * Country names and abbreviations with locale defined from ISO 3166
  93  */
  94 struct country_info {
  95         const u8 locale_2G;     /* 2.4G band locale */
  96         const u8 locale_5G;     /* 5G band locale */
  97         const u8 locale_mimo_2G;        /* 2.4G mimo info */
  98         const u8 locale_mimo_5G;        /* 5G mimo info */
  99 };
 100
 101 typedef struct country_info country_info_t;
 102
 103 typedef struct wlc_cm_info wlc_cm_info_t;
 104
 105 extern wlc_cm_info_t *wlc_channel_mgr_attach(struct wlc_info *wlc);
 106 extern void wlc_channel_mgr_detach(wlc_cm_info_t *wlc_cm);
 107
 108 extern u8 wlc_channel_locale_flags_in_band(wlc_cm_info_t *wlc_cm,
 109                                            uint bandunit);
 110
 111 extern bool wlc_valid_chanspec_db(wlc_cm_info_t *wlc_cm, chanspec_t chspec);
 112
 113 extern void wlc_channel_reg_limits(wlc_cm_info_t *wlc_cm,
 114                                    chanspec_t chanspec,
 115                                    struct txpwr_limits *txpwr);
 116 extern void wlc_channel_set_chanspec(wlc_cm_info_t *wlc_cm,
 117                                      chanspec_t chanspec,
 118                                      u8 local_constraint_qdbm);
 119
 120 #endif                          /* _WLC_CHANNEL_H */