diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2023-06-19 15:26:52 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-06-21 14:01:29 +0200 |
| commit | 4ef2f53e50cba9780057b51357ef45cb5f49859d (patch) | |
| tree | 55f171621e91c75b011c827ecff3039cc4b322e4 /net/wireless | |
| parent | wifi: mac80211: fix CRC calculation for extended elems (diff) | |
| download | linux-4ef2f53e50cba9780057b51357ef45cb5f49859d.tar.xz linux-4ef2f53e50cba9780057b51357ef45cb5f49859d.zip | |
wifi: cfg80211: Retrieve PSD information from RNR AP information
Retrieve the Power Spectral Density (PSD) value from RNR AP
information entry and store it so it could be used by the drivers.
PSD value is explained in Section 9.4.2.170 of Draft
P802.11Revme_D2.0.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230619161906.067ded2b8fc3.I9f407ab5800cbb07045a0537a513012960ced740@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/scan.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index ede95caecb34..8bf00caf5d29 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -96,6 +96,7 @@ MODULE_PARM_DESC(bss_entries_limit, * colocated and can be discovered via legacy bands. * @short_ssid_valid: short_ssid is valid and can be used * @short_ssid: the short SSID for this SSID + * @psd_20: The 20MHz PSD EIRP of the primary 20MHz channel for the reported AP */ struct cfg80211_colocated_ap { struct list_head list; @@ -111,6 +112,7 @@ struct cfg80211_colocated_ap { transmitted_bssid:1, colocated_ess:1, short_ssid_valid:1; + s8 psd_20; }; static void bss_free(struct cfg80211_internal_bss *bss) @@ -578,6 +580,8 @@ static int cfg80211_parse_ap_info(struct cfg80211_colocated_ap *entry, { u8 bss_params; + entry->psd_20 = IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED; + /* The length is already verified by the caller to contain bss_params */ if (length > sizeof(struct ieee80211_tbtt_info_7_8_9)) { struct ieee80211_tbtt_info_ge_11 *tbtt_info = (void *)pos; @@ -594,12 +598,20 @@ static int cfg80211_parse_ap_info(struct cfg80211_colocated_ap *entry, IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK)) return -EINVAL; } + + if (length >= offsetofend(struct ieee80211_tbtt_info_ge_11, + psd_20)) + entry->psd_20 = tbtt_info->psd_20; } else { struct ieee80211_tbtt_info_7_8_9 *tbtt_info = (void *)pos; memcpy(entry->bssid, tbtt_info->bssid, ETH_ALEN); bss_params = tbtt_info->bss_params; + + if (length == offsetofend(struct ieee80211_tbtt_info_7_8_9, + psd_20)) + entry->psd_20 = tbtt_info->psd_20; } /* ignore entries with invalid BSSID */ @@ -904,6 +916,7 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev) scan_6ghz_params->short_ssid = ap->short_ssid; scan_6ghz_params->short_ssid_valid = ap->short_ssid_valid; scan_6ghz_params->unsolicited_probe = ap->unsolicited_probe; + scan_6ghz_params->psd_20 = ap->psd_20; /* * If a PSC channel is added to the scan and 'need_scan_psc' is |