diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/rate.h')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmsmac/rate.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/rate.h b/drivers/net/wireless/brcm80211/brcmsmac/rate.h deleted file mode 100644 index 5bb88b78e..000000000 --- a/drivers/net/wireless/brcm80211/brcmsmac/rate.h +++ /dev/null @@ -1,245 +0,0 @@ -/* - * 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 { - /* phy rate in kbps [20Mhz] */ - u32 phy_rate_20; - /* phy rate in kbps [40Mhz] */ - u32 phy_rate_40; - /* phy rate in kbps [20Mhz] with SGI */ - u32 phy_rate_20_sgi; - /* phy rate in kbps [40Mhz] with SGI */ - u32 phy_rate_40_sgi; - /* phy ctl byte 3, code rate, modulation type, # of streams */ - u8 tx_phy_ctl3; - /* matching legacy ofdm rate in 500bkps */ - u8 leg_ofdm; -}; - -#define BRCMS_MAXMCS 32 /* max valid mcs index */ -#define MCS_TABLE_SIZE 33 /* Number of mcs entries in the table */ -extern const struct brcms_mcs_info mcs_table[]; - -#define MCS_TXS_MASK 0xc0 /* num tx streams - 1 bit mask */ -#define MCS_TXS_SHIFT 6 /* num tx streams - 1 bit shift */ - -/* returns num tx streams - 1 */ -static inline u8 mcs_2_txstreams(u8 mcs) -{ - return (mcs_table[mcs].tx_phy_ctl3 & MCS_TXS_MASK) >> MCS_TXS_SHIFT; -} - -static inline uint mcs_2_rate(u8 mcs, bool is40, bool sgi) -{ - if (sgi) { - if (is40) - return mcs_table[mcs].phy_rate_40_sgi; - return mcs_table[mcs].phy_rate_20_sgi; - } - if (is40) - return mcs_table[mcs].phy_rate_40; - - return mcs_table[mcs].phy_rate_20; -} - -/* Macro to use the rate_info table */ -#define BRCMS_RATE_MASK_FULL 0xff /* Rate value mask with basic rate flag */ - -/* - * 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 0x0000007F -/* mimo MCS is stored in RSPEC_RATE_MASK */ -#define RSPEC_MIMORATE 0x08000000 -/* mimo bw mask */ -#define RSPEC_BW_MASK 0x00000700 -/* mimo bw shift */ -#define RSPEC_BW_SHIFT 8 -/* mimo Space/Time/Frequency mode mask */ -#define RSPEC_STF_MASK 0x00003800 -/* mimo Space/Time/Frequency mode shift */ -#define RSPEC_STF_SHIFT 11 -/* mimo coding type mask */ -#define RSPEC_CT_MASK 0x0000C000 -/* mimo coding type shift */ -#define RSPEC_CT_SHIFT 14 -/* mimo num STC streams per PLCP defn. */ -#define RSPEC_STC_MASK 0x00300000 -/* mimo num STC streams per PLCP defn. */ -#define RSPEC_STC_SHIFT 20 -/* mimo bit indicates adv coding in use */ -#define RSPEC_LDPC_CODING 0x00400000 -/* mimo bit indicates short GI in use */ -#define RSPEC_SHORT_GI 0x00800000 -/* bit indicates override both rate & mode */ -#define RSPEC_OVERRIDE 0x80000000 -/* bit indicates override rate only */ -#define RSPEC_OVERRIDE_MCS_ONLY 0x40000000 - -static inline bool rspec_active(u32 rspec) -{ - return rspec & (RSPEC_RATE_MASK | RSPEC_MIMORATE); -} - -static inline u8 rspec_phytxbyte2(u32 rspec) -{ - return (rspec & 0xff00) >> 8; -} - -static inline u32 rspec_get_bw(u32 rspec) -{ - return (rspec & RSPEC_BW_MASK) >> RSPEC_BW_SHIFT; -} - -static inline bool rspec_issgi(u32 rspec) -{ - return (rspec & RSPEC_SHORT_GI) == RSPEC_SHORT_GI; -} - -static inline bool rspec_is40mhz(u32 rspec) -{ - u32 bw = rspec_get_bw(rspec); - - return bw == PHY_TXC1_BW_40MHZ || bw == PHY_TXC1_BW_40MHZ_DUP; -} - -static inline uint rspec2rate(u32 rspec) -{ - if (rspec & RSPEC_MIMORATE) - return mcs_2_rate(rspec & RSPEC_RATE_MASK, rspec_is40mhz(rspec), - rspec_issgi(rspec)); - return rspec & RSPEC_RATE_MASK; -} - -static inline u8 rspec_mimoplcp3(u32 rspec) -{ - return (rspec & 0xf00000) >> 16; -} - -static inline bool plcp3_issgi(u8 plcp) -{ - return (plcp & (RSPEC_SHORT_GI >> 16)) != 0; -} - -static inline uint rspec_stc(u32 rspec) -{ - return (rspec & RSPEC_STC_MASK) >> RSPEC_STC_SHIFT; -} - -static inline uint rspec_stf(u32 rspec) -{ - return (rspec & RSPEC_STF_MASK) >> RSPEC_STF_SHIFT; -} - -static inline bool is_mcs_rate(u32 ratespec) -{ - return (ratespec & RSPEC_MIMORATE) != 0; -} - -static inline bool is_ofdm_rate(u32 ratespec) -{ - return !is_mcs_rate(ratespec) && - (rate_info[ratespec & RSPEC_RATE_MASK] & BRCMS_RATE_FLAG); -} - -static inline bool is_cck_rate(u32 ratespec) -{ - u32 rate = (ratespec & BRCMS_RATE_MASK); - - return !is_mcs_rate(ratespec) && ( - rate == BRCM_RATE_1M || rate == BRCM_RATE_2M || - rate == BRCM_RATE_5M5 || rate == BRCM_RATE_11M); -} - -static inline bool is_single_stream(u8 mcs) -{ - return mcs <= HIGHEST_SINGLE_STREAM_MCS || mcs == 32; -} - -static inline u8 cck_rspec(u8 cck) -{ - return cck & RSPEC_RATE_MASK; -} - -/* Convert encoded rate value in plcp header to numerical rates in 500 KHz - * increments */ -static inline u8 ofdm_phy2mac_rate(u8 rlpt) -{ - return wlc_phy_get_ofdm_rate_lookup()[rlpt & 0x7]; -} - -static inline u8 cck_phy2mac_rate(u8 signal) -{ - return signal/5; -} - -/* Rates specified in brcms_c_rateset_filter() */ -#define BRCMS_RATES_CCK_OFDM 0 -#define BRCMS_RATES_CCK 1 -#define BRCMS_RATES_OFDM 2 - -/* 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_ */ |