Commit 725d255e authored by Christian Lamparter's avatar Christian Lamparter Committed by John W. Linville
Browse files

p54: improve TSF timestamp precision



The LMAC API states that the TSF clock value of
every rx'ed frame is a "usec accurate timestamp
of the hardware clock at the end of frame
(before OFDM SIFS EOF padding)".
Signed-off-by: default avatarChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1d815ef4
......@@ -369,7 +369,11 @@ static int p54_rx_data(struct p54_common *priv, struct sk_buff *skb)
rx_status->mactime = ((u64)priv->tsf_high32) << 32 | tsf32;
priv->tsf_low32 = tsf32;
rx_status->flag |= RX_FLAG_MACTIME_START;
/* LMAC API Page 10/29 - s_lm_data_in - clock
* "usec accurate timestamp of hardware clock
* at end of frame (before OFDM SIFS EOF padding"
*/
rx_status->flag |= RX_FLAG_MACTIME_END;
if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
header_len += hdr->align[0];
......
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