/* * Copyright (c) 2010 Broadcom Corporation * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _BRCM_RATE_H_ #define _BRCM_RATE_H_ #include "types.h" #include "d11.h" #include "phy_hal.h" extern const u8 rate_info[]; extern const struct brcms_c_rateset cck_ofdm_mimo_rates; extern const struct brcms_c_rateset ofdm_mimo_rates; extern const struct brcms_c_rateset cck_ofdm_rates; extern const struct brcms_c_rateset ofdm_rates; extern const struct brcms_c_rateset cck_rates; extern const struct brcms_c_rateset gphy_legacy_rates; extern const struct brcms_c_rateset rate_limit_1_2; struct brcms_mcs_info { … }; #define BRCMS_MAXMCS … #define MCS_TABLE_SIZE … extern const struct brcms_mcs_info mcs_table[]; #define MCS_TXS_MASK … #define MCS_TXS_SHIFT … /* returns num tx streams - 1 */ static inline u8 mcs_2_txstreams(u8 mcs) { … } static inline uint mcs_2_rate(u8 mcs, bool is40, bool sgi) { … } /* Macro to use the rate_info table */ #define BRCMS_RATE_MASK_FULL … /* * rate spec : holds rate and mode specific information required to generate a * tx frame. Legacy CCK and OFDM information is held in the same manner as was * done in the past (in the lower byte) the upper 3 bytes primarily hold MIMO * specific information */ /* rate spec bit fields */ /* Either 500Kbps units or MIMO MCS idx */ #define RSPEC_RATE_MASK … /* mimo MCS is stored in RSPEC_RATE_MASK */ #define RSPEC_MIMORATE … /* mimo bw mask */ #define RSPEC_BW_MASK … /* mimo bw shift */ #define RSPEC_BW_SHIFT … /* mimo Space/Time/Frequency mode mask */ #define RSPEC_STF_MASK … /* mimo Space/Time/Frequency mode shift */ #define RSPEC_STF_SHIFT … /* mimo coding type mask */ #define RSPEC_CT_MASK … /* mimo coding type shift */ #define RSPEC_CT_SHIFT … /* mimo num STC streams per PLCP defn. */ #define RSPEC_STC_MASK … /* mimo num STC streams per PLCP defn. */ #define RSPEC_STC_SHIFT … /* mimo bit indicates adv coding in use */ #define RSPEC_LDPC_CODING … /* mimo bit indicates short GI in use */ #define RSPEC_SHORT_GI … /* bit indicates override both rate & mode */ #define RSPEC_OVERRIDE … /* bit indicates override rate only */ #define RSPEC_OVERRIDE_MCS_ONLY … static inline bool rspec_active(u32 rspec) { … } static inline u8 rspec_phytxbyte2(u32 rspec) { … } static inline u32 rspec_get_bw(u32 rspec) { … } static inline bool rspec_issgi(u32 rspec) { … } static inline bool rspec_is40mhz(u32 rspec) { … } static inline uint rspec2rate(u32 rspec) { … } static inline u8 rspec_mimoplcp3(u32 rspec) { … } static inline bool plcp3_issgi(u8 plcp) { … } static inline uint rspec_stc(u32 rspec) { … } static inline uint rspec_stf(u32 rspec) { … } static inline bool is_mcs_rate(u32 ratespec) { … } static inline bool is_ofdm_rate(u32 ratespec) { … } static inline bool is_cck_rate(u32 ratespec) { … } static inline bool is_single_stream(u8 mcs) { … } static inline u8 cck_rspec(u8 cck) { … } /* Convert encoded rate value in plcp header to numerical rates in 500 KHz * increments */ static inline u8 ofdm_phy2mac_rate(u8 rlpt) { … } static inline u8 cck_phy2mac_rate(u8 signal) { … } /* Rates specified in brcms_c_rateset_filter() */ #define BRCMS_RATES_CCK_OFDM … #define BRCMS_RATES_CCK … #define BRCMS_RATES_OFDM … /* sanitize, and sort a rateset with the basic bit(s) preserved, validate * rateset */ bool brcms_c_rate_hwrs_filter_sort_validate(struct brcms_c_rateset *rs, const struct brcms_c_rateset *hw_rs, bool check_brate, u8 txstreams); /* copy rateset src to dst as-is (no masking or sorting) */ void brcms_c_rateset_copy(const struct brcms_c_rateset *src, struct brcms_c_rateset *dst); /* would be nice to have these documented ... */ u32 brcms_c_compute_rspec(struct d11rxhdr *rxh, u8 *plcp); void brcms_c_rateset_filter(struct brcms_c_rateset *src, struct brcms_c_rateset *dst, bool basic_only, u8 rates, uint xmask, bool mcsallow); void brcms_c_rateset_default(struct brcms_c_rateset *rs_tgt, const struct brcms_c_rateset *rs_hw, uint phy_type, int bandtype, bool cck_only, uint rate_mask, bool mcsallow, u8 bw, u8 txstreams); s16 brcms_c_rate_legacy_phyctl(uint rate); void brcms_c_rateset_mcs_upd(struct brcms_c_rateset *rs, u8 txstreams); void brcms_c_rateset_mcs_clear(struct brcms_c_rateset *rateset); void brcms_c_rateset_mcs_build(struct brcms_c_rateset *rateset, u8 txstreams); void brcms_c_rateset_bw_mcs_filter(struct brcms_c_rateset *rateset, u8 bw); #endif /* _BRCM_RATE_H_ */
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