From: Michal Kazior <michal.kazior@tieto.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] [PATCH] ath9k: Prevent radar detection and spectral scan to be used concurrently
Date: Mon, 21 Nov 2016 15:16:29 +0100 [thread overview]
Message-ID: <CA+BoTQkucZn7prTns-GB0435+UnVx-0Q4H2AuV-mYLNNYLMZ9w@mail.gmail.com> (raw)
In-Reply-To: <20161121140423.24367-1-benjamin@sipsolutions.net>
On 21 November 2016 at 15:04, Benjamin Berg <benjamin@sipsolutions.net> wrote:
> In the case that a spectral scan is enabled the PHY errors sent by the
> hardware as part of the scanning might trigger the radar detection and
> channels might be marked as 'unusable' incorrectly. This patch fixes
> the issue by preventing the spectral scan to be enabled if DFS is used
> and only analysing the PHY errors for DFS if radar detection is enabled.
According to the comment in ath_cmn_process_fft() this doesn't seem to
be necessary for all chips:
515 /* AR9280 and before report via ATH9K_PHYERR_RADAR,
AR93xx and newer
516 * via ATH9K_PHYERR_SPECTRAL. Haven't seen
ATH9K_PHYERR_FALSE_RADAR_EXT
517 * yet, but this is supposed to be possible as well.
518 */
519 if (rs->rs_phyerr != ATH9K_PHYERR_RADAR &&
520 rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT &&
521 rs->rs_phyerr != ATH9K_PHYERR_SPECTRAL)
522 return 0;
Micha?
next prev parent reply other threads:[~2016-11-21 14:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-21 14:04 [ath9k-devel] [PATCH] ath9k: Prevent radar detection and spectral scan to be used concurrently Benjamin Berg
2016-11-21 14:16 ` Michal Kazior [this message]
2016-11-21 14:41 ` Zefir Kurtisi
2016-11-21 15:10 ` Michal Kazior
2016-11-21 16:16 ` Zefir Kurtisi
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