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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: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2016-02-23 23:05:06 +02:00
parent 646e76bb5d
commit 162dd6a725
2 changed files with 6 additions and 1 deletions
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3
include/net/mac80211.h
View File

@ -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;

4
net/mac80211/scan.c
View File

@ -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))