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 */ 121