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b43: fix frequency reported on G-PHY with /new/ firmware

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commit 2fc68eb122 upstream.

Support for firmware rev 508+ was added years ago, but we never noticed
it reports channel in a different way for G-PHY devices. Instead of
offset from 2400 MHz it simply passes channel id (AKA hw_value).

So far it was (most probably) affecting monitor mode users only, but
the following recent commit made it noticeable for quite everybody:

commit 3afc2167f6
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Tue Mar 4 16:50:13 2014 +0200

    cfg80211/mac80211: ignore signal if the frame was heard on wrong channel

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rafał Miłecki
2014-06-12 22:28:22 +02:00
committed by Greg Kroah-Hartman
parent c30371e884
commit 7e64d190a0
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/b43/xmit.c
View File

@@ -810,9 +810,13 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
break;
case B43_PHYTYPE_G:
status.band = IEEE80211_BAND_2GHZ;
/* chanid is the radio channel cookie value as used
* to tune the radio. */
status.freq = chanid + 2400;
/* Somewhere between 478.104 and 508.1084 firmware for G-PHY
* has been modified to be compatible with N-PHY and others.
*/
if (dev->fw.rev >= 508)
status.freq = ieee80211_channel_to_frequency(chanid, status.band);
else
status.freq = chanid + 2400;
break;
case B43_PHYTYPE_N:
case B43_PHYTYPE_LP: