sys/net80211/ieee80211_phy.c

64 /* XXX the 11n and the basic rate flag are unfortunately overlapping. Grr. */
286  * Setup a rate table's reverse lookup table and fill in
310 		 * Map without the basic rate bit.
313 		 * rate bit is stripped here.
315 		 * For HT, use the MCS rate bit.
322 		/* XXX assume the control rate is non-MCS? */
327 		 * XXX for 11g the control rate to use for 5.5 and 11 Mb/s
330 		 *     2Mb/s rate which will work but is suboptimal
332 		 * NB: Control rate is always less than or equal to the
333 		 *     current rate, so control rate's reverse lookup entry
345 /* Setup all rate tables */
396 		panic("%s: no rate table for channel; freq %u flags 0x%x\n",
403  * Convert PLCP signal/rate field to 802.11 rate (.5Mbits/s)
406  * used to derive an 802.11 rate for constructing radiotap
441  * Covert 802.11 rate to PLCP signal.
444 ieee80211_rate2plcp(int rate, enum ieee80211_phytype type)
447 	switch (rate) {
465 	return 0;		/* XXX unsupported/unknown rate */
494  * using the specified rate, phy, and short preamble setting.
499 	uint32_t frameLen, uint16_t rate, int isShortPreamble)
501 	uint8_t rix = rt->rateCodeToIndex[rate];
505 	KASSERT(rix != (uint8_t)-1, ("rate %d has no info", rate));
521 		KASSERT(bitsPerSymbol != 0, ("full rate bps"));
531 		KASSERT(bitsPerSymbol != 0, ("1/4 rate bps"));
541 		KASSERT(bitsPerSymbol != 0, ("1/2 rate bps"));
560 		panic("%s: unknown phy %u (rate %u)\n", __func__,
561 		      rt->info[rix].phy, rate);
597 ieee80211_compute_duration_ht(uint32_t frameLen, uint16_t rate,
602 	KASSERT(rate & IEEE80211_RATE_MCS, ("not mcs %d", rate));
603 	KASSERT((rate &~ IEEE80211_RATE_MCS) < 31, ("bad mcs 0x%x", rate));
606 		bitsPerSymbol = ht40_bps[rate & 0x1f];
608 		bitsPerSymbol = ht20_bps[rate & 0x1f];