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wifi: cfg80211: add PD-specific preamble and bandwidth capabilities

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Devices may support different preamble and bandwidth configurations
for proximity detection (PD) ranging versus standard ranging. Add
separate pd_preambles and pd_bandwidths fields to
cfg80211_pmsr_capabilities to allow drivers to advertise PD-specific
capabilities.

Expose these over nl80211 using new attributes
NL80211_PMSR_FTM_CAPA_ATTR_PD_PREAMBLES and
NL80211_PMSR_FTM_CAPA_ATTR_PD_BANDWIDTHS, advertised only when
pd_support is set.

For PD requests, validate bandwidth and preamble against pd_bandwidths
and pd_preambles. For non-PD requests, validate against the existing
bandwidths and preambles fields.

Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
Link: https://patch.msgid.link/20260420090856.2152905-11-peddolla.reddy@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Peddolla Harshavardhan Reddy
2026-04-20 14:38:53 +05:30
committed by Johannes Berg
parent 99529edd28
commit 5733daa670
4 changed files with 47 additions and 2 deletions
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10
include/uapi/linux/nl80211.h
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@@ -8189,6 +8189,14 @@ enum nl80211_peer_measurement_attrs {
* to estimate the burst period to be given in the FTM request for the
* NTB ranging case. If non-zero, this value will be used to validate
* the nominal time in the FTM request.
* @NL80211_PMSR_FTM_CAPA_ATTR_PD_PREAMBLES: u32 bitmap of values from
* &enum nl80211_preamble indicating the supported preambles for PD
* ranging requests. Only valid if %NL80211_PMSR_FTM_TYPE_CAPA_ATTR_PD_SUPPORT
* is set.
* @NL80211_PMSR_FTM_CAPA_ATTR_PD_BANDWIDTHS: u32 bitmap of values from
* &enum nl80211_chan_width indicating the supported channel bandwidths
* for PD ranging requests. Only valid if
* %NL80211_PMSR_FTM_TYPE_CAPA_ATTR_PD_SUPPORT is set.
*
* @NUM_NL80211_PMSR_FTM_CAPA_ATTR: internal
* @NL80211_PMSR_FTM_CAPA_ATTR_MAX: highest attribute number
@@ -8225,6 +8233,8 @@ enum nl80211_peer_measurement_ftm_capa {
NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS,
NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA,
NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB,
NL80211_PMSR_FTM_CAPA_ATTR_PD_PREAMBLES,
NL80211_PMSR_FTM_CAPA_ATTR_PD_BANDWIDTHS,
/* keep last */
NUM_NL80211_PMSR_FTM_CAPA_ATTR,