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Commit 162dd6a7 authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: allow drivers to report CLOCK_BOOTTIME for scan results 



This was requested by Android, and the appropriate cfg80211 API
had been added by Dmitry. Support it in mac80211, allowing drivers
to provide the timestamp.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 646e76bb

include/net/mac80211.h

+3 −0
Original line number Diff line number Diff line
@@ -1120,6 +1120,8 @@ enum mac80211_rx_vht_flags { 
 *

 * @mactime: value in microseconds of the 64-bit Time Synchronization Function

 * 	(TSF) timer when the first data symbol (MPDU) arrived at the hardware.

 * @boottime_ns: CLOCK_BOOTTIME timestamp the frame was received at, this is

 *	needed only for beacons and probe responses that update the scan cache.

 * @device_timestamp: arbitrary timestamp for the device, mac80211 doesn't use

 *	it but can store it and pass it back to the driver for synchronisation

 * @band: the active band when this frame was received
@@ -1146,6 +1148,7 @@ enum mac80211_rx_vht_flags { 
 */

struct ieee80211_rx_status {

	u64 mactime;

	u64 boottime_ns;

	u32 device_timestamp;

	u32 ampdu_reference;

	u32 flag;

net/mac80211/scan.c

+3 −1
Original line number Diff line number Diff line
@@ -66,7 +66,9 @@ ieee80211_bss_info_update(struct ieee80211_local *local, 
	struct cfg80211_bss *cbss;

	struct ieee80211_bss *bss;

	int clen, srlen;

	struct cfg80211_inform_bss bss_meta = {};

	struct cfg80211_inform_bss bss_meta = {

		.boottime_ns = rx_status->boottime_ns,

	};

	bool signal_valid;



	if (ieee80211_hw_check(&local->hw, SIGNAL_DBM))