1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
33  * IEEE 802.11 PHY-related definitions.
57  * For drivers that don't implement per-VAP slot time
59  * between VAPs to program a single radio) - return
63 	((ic->ic_flags & IEEE80211_F_SHSLOT) ? \
67  * For drivers that implement per-VAP slot time; look
68  * at the per-VAP flags to determine whether this VAP
72 	((vap->iv_flags & IEEE80211_F_SHSLOT) ? \
89 		uint32_t	rateKbps;	/* transfer rate in kbs */
91 						 * preamble in CCK rate code */
95 						 * rate; used for dur. calcs */
105 ieee80211_ack_rate(const struct ieee80211_rate_table *rt, uint8_t rate)  in ieee80211_ack_rate()  argument
108 	 * XXX Assert this is for a legacy rate; not for an MCS rate.  in ieee80211_ack_rate()
109 	 * If the caller wishes to use it for a basic rate, they should  in ieee80211_ack_rate()
112 	KASSERT(! (rate & 0x80), ("rate %d is basic/mcs?", rate));  in ieee80211_ack_rate()
114 	uint8_t cix = rt->info[rt->rateCodeToIndex[rate & IEEE80211_RATE_VAL]].ctlRateIndex;  in ieee80211_ack_rate()
115 	KASSERT(cix != (uint8_t)-1, ("rate %d has no info", rate));  in ieee80211_ack_rate()
116 	return rt->info[cix].dot11Rate;  in ieee80211_ack_rate()
120 ieee80211_ctl_rate(const struct ieee80211_rate_table *rt, uint8_t rate)  in ieee80211_ctl_rate()  argument
123 	 * XXX Assert this is for a legacy rate; not for an MCS rate.  in ieee80211_ctl_rate()
124 	 * If the caller wishes to use it for a basic rate, they should  in ieee80211_ctl_rate()
127 	KASSERT(! (rate & 0x80), ("rate %d is basic/mcs?", rate));  in ieee80211_ctl_rate()
129 	uint8_t cix = rt->info[rt->rateCodeToIndex[rate & IEEE80211_RATE_VAL]].ctlRateIndex;  in ieee80211_ctl_rate()
130 	KASSERT(cix != (uint8_t)-1, ("rate %d has no info", rate));  in ieee80211_ctl_rate()
131 	return rt->info[cix].dot11Rate;  in ieee80211_ctl_rate()
135 ieee80211_rate2phytype(const struct ieee80211_rate_table *rt, uint8_t rate)  in ieee80211_rate2phytype()  argument
138 	 * XXX Assert this is for a legacy rate; not for an MCS rate.  in ieee80211_rate2phytype()
139 	 * If the caller wishes to use it for a basic rate, they should  in ieee80211_rate2phytype()
142 	KASSERT(! (rate & 0x80), ("rate %d is basic/mcs?", rate));  in ieee80211_rate2phytype()
144 	uint8_t rix = rt->rateCodeToIndex[rate & IEEE80211_RATE_VAL];  in ieee80211_rate2phytype()
145 	KASSERT(rix != (uint8_t)-1, ("rate %d has no info", rate));  in ieee80211_rate2phytype()
146 	return rt->info[rix].phy;  in ieee80211_rate2phytype()
150 ieee80211_isratevalid(const struct ieee80211_rate_table *rt, uint8_t rate)  in ieee80211_isratevalid()  argument
153 	 * XXX Assert this is for a legacy rate; not for an MCS rate.  in ieee80211_isratevalid()
154 	 * If the caller wishes to use it for a basic rate, they should  in ieee80211_isratevalid()
157 	KASSERT(! (rate & 0x80), ("rate %d is basic/mcs?", rate));  in ieee80211_isratevalid()
159 	return rt->rateCodeToIndex[rate] != (uint8_t)-1;  in ieee80211_isratevalid()
164  * o  non-fragment data frames
166  * sent using rate, phy and short preamble setting.
170     uint8_t rate, int isShortPreamble)  in ieee80211_ack_duration()  argument
172 	uint8_t rix = rt->rateCodeToIndex[rate];  in ieee80211_ack_duration()
174 	KASSERT(rix != (uint8_t)-1, ("rate %d has no info", rate));  in ieee80211_ack_duration()
176 		KASSERT(rt->info[rix].spAckDuration != 0,  in ieee80211_ack_duration()
178 		return rt->info[rix].spAckDuration;  in ieee80211_ack_duration()
180 		KASSERT(rt->info[rix].lpAckDuration != 0,  in ieee80211_ack_duration()
182 		return rt->info[rix].lpAckDuration;  in ieee80211_ack_duration()
188     uint8_t rate)  in ieee80211_legacy_rate_lookup()  argument
191 	return (rt->rateCodeToIndex[rate & IEEE80211_RATE_VAL]);  in ieee80211_legacy_rate_lookup()
196  * using the specified 802.11 rate code, phy, and short preamble
202 			uint32_t frameLen, uint16_t rate, int isShortPreamble);
204  * Convert PLCP signal/rate field to 802.11 rate code (.5Mbits/s)
208  * Convert 802.11 rate code to PLCP signal.
213  * 802.11n rate manipulation.
221 			uint16_t rate, int streams, int isht40,